/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app;
import com.android.internal.app.ActionBarImpl;
import com.android.internal.policy.PolicyManager;
import android.content.ComponentCallbacks2;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.CursorLoader;
import android.content.IIntentSender;
import android.content.Intent;
import android.content.IntentSender;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.Resources.Theme;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Parcelable;
import android.os.RemoteException;
import android.os.StrictMode;
import android.text.Selection;
import android.text.SpannableStringBuilder;
import android.text.TextUtils;
import android.text.method.TextKeyListener;
import android.util.AttributeSet;
import android.util.EventLog;
import android.util.Log;
import android.util.SparseArray;
import android.util.TypedValue;
import android.view.ActionMode;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.ContextThemeWrapper;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManagerImpl;
import android.view.View.OnCreateContextMenuListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewManager;
import android.view.Window;
import android.view.WindowManager;
import android.view.accessibility.AccessibilityEvent;
import android.widget.AdapterView;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
/**
* An activity is a single, focused thing that the user can do. Almost all
* activities interact with the user, so the Activity class takes care of
* creating a window for you in which you can place your UI with
* {@link #setContentView}. While activities are often presented to the user
* as full-screen windows, they can also be used in other ways: as floating
* windows (via a theme with {@link android.R.attr#windowIsFloating} set)
* or embedded inside of another activity (using {@link ActivityGroup}).
*
* There are two methods almost all subclasses of Activity will implement:
*
* <ul>
* <li> {@link #onCreate} is where you initialize your activity. Most
* importantly, here you will usually call {@link #setContentView(int)}
* with a layout resource defining your UI, and using {@link #findViewById}
* to retrieve the widgets in that UI that you need to interact with
* programmatically.
*
* <li> {@link #onPause} is where you deal with the user leaving your
* activity. Most importantly, any changes made by the user should at this
* point be committed (usually to the
* {@link android.content.ContentProvider} holding the data).
* </ul>
*
* <p>To be of use with {@link android.content.Context#startActivity Context.startActivity()}, all
* activity classes must have a corresponding
* {@link android.R.styleable#AndroidManifestActivity <activity>}
* declaration in their package's <code>AndroidManifest.xml</code>.</p>
*
* <p>Topics covered here:
* <ol>
* <li><a href="#Fragments">Fragments</a>
* <li><a href="#ActivityLifecycle">Activity Lifecycle</a>
* <li><a href="#ConfigurationChanges">Configuration Changes</a>
* <li><a href="#StartingActivities">Starting Activities and Getting Results</a>
* <li><a href="#SavingPersistentState">Saving Persistent State</a>
* <li><a href="#Permissions">Permissions</a>
* <li><a href="#ProcessLifecycle">Process Lifecycle</a>
* </ol>
*
* <div class="special reference">
* <h3>Developer Guides</h3>
* <p>The Activity class is an important part of an application's overall lifecycle,
* and the way activities are launched and put together is a fundamental
* part of the platform's application model. For a detailed perspective on the structure of an
* Android application and how activities behave, please read the
* <a href="{@docRoot}guide/topics/fundamentals.html">Application Fundamentals</a> and
* <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back Stack</a>
* developer guides.</p>
*
* <p>You can also find a detailed discussion about how to create activities in the
* <a href="{@docRoot}guide/topics/fundamentals/activities.html">Activities</a>
* developer guide.</p>
* </div>
*
* <a name="Fragments"></a>
* <h3>Fragments</h3>
*
* <p>Starting with {@link android.os.Build.VERSION_CODES#HONEYCOMB}, Activity
* implementations can make use of the {@link Fragment} class to better
* modularize their code, build more sophisticated user interfaces for larger
* screens, and help scale their application between small and large screens.
*
* <a name="ActivityLifecycle"></a>
* <h3>Activity Lifecycle</h3>
*
* <p>Activities in the system are managed as an <em>activity stack</em>.
* When a new activity is started, it is placed on the top of the stack
* and becomes the running activity -- the previous activity always remains
* below it in the stack, and will not come to the foreground again until
* the new activity exits.</p>
*
* <p>An activity has essentially four states:</p>
* <ul>
* <li> If an activity in the foreground of the screen (at the top of
* the stack),
* it is <em>active</em> or <em>running</em>. </li>
* <li>If an activity has lost focus but is still visible (that is, a new non-full-sized
* or transparent activity has focus on top of your activity), it
* is <em>paused</em>. A paused activity is completely alive (it
* maintains all state and member information and remains attached to
* the window manager), but can be killed by the system in extreme
* low memory situations.
* <li>If an activity is completely obscured by another activity,
* it is <em>stopped</em>. It still retains all state and member information,
* however, it is no longer visible to the user so its window is hidden
* and it will often be killed by the system when memory is needed
* elsewhere.</li>
* <li>If an activity is paused or stopped, the system can drop the activity
* from memory by either asking it to finish, or simply killing its
* process. When it is displayed again to the user, it must be
* completely restarted and restored to its previous state.</li>
* </ul>
*
* <p>The following diagram shows the important state paths of an Activity.
* The square rectangles represent callback methods you can implement to
* perform operations when the Activity moves between states. The colored
* ovals are major states the Activity can be in.</p>
*
* <p><img src="../../../images/activity_lifecycle.png"
* alt="State diagram for an Android Activity Lifecycle." border="0" /></p>
*
* <p>There are three key loops you may be interested in monitoring within your
* activity:
*
* <ul>
* <li>The <b>entire lifetime</b> of an activity happens between the first call
* to {@link android.app.Activity#onCreate} through to a single final call
* to {@link android.app.Activity#onDestroy}. An activity will do all setup
* of "global" state in onCreate(), and release all remaining resources in
* onDestroy(). For example, if it has a thread running in the background
* to download data from the network, it may create that thread in onCreate()
* and then stop the thread in onDestroy().
*
* <li>The <b>visible lifetime</b> of an activity happens between a call to
* {@link android.app.Activity#onStart} until a corresponding call to
* {@link android.app.Activity#onStop}. During this time the user can see the
* activity on-screen, though it may not be in the foreground and interacting
* with the user. Between these two methods you can maintain resources that
* are needed to show the activity to the user. For example, you can register
* a {@link android.content.BroadcastReceiver} in onStart() to monitor for changes
* that impact your UI, and unregister it in onStop() when the user an no
* longer see what you are displaying. The onStart() and onStop() methods
* can be called multiple times, as the activity becomes visible and hidden
* to the user.
*
* <li>The <b>foreground lifetime</b> of an activity happens between a call to
* {@link android.app.Activity#onResume} until a corresponding call to
* {@link android.app.Activity#onPause}. During this time the activity is
* in front of all other activities and interacting with the user. An activity
* can frequently go between the resumed and paused states -- for example when
* the device goes to sleep, when an activity result is delivered, when a new
* intent is delivered -- so the code in these methods should be fairly
* lightweight.
* </ul>
*
* <p>The entire lifecycle of an activity is defined by the following
* Activity methods. All of these are hooks that you can override
* to do appropriate work when the activity changes state. All
* activities will implement {@link android.app.Activity#onCreate}
* to do their initial setup; many will also implement
* {@link android.app.Activity#onPause} to commit changes to data and
* otherwise prepare to stop interacting with the user. You should always
* call up to your superclass when implementing these methods.</p>
*
* </p>
* <pre class="prettyprint">
* public class Activity extends ApplicationContext {
* protected void onCreate(Bundle savedInstanceState);
*
* protected void onStart();
*
* protected void onRestart();
*
* protected void onResume();
*
* protected void onPause();
*
* protected void onStop();
*
* protected void onDestroy();
* }
* </pre>
*
* <p>In general the movement through an activity's lifecycle looks like
* this:</p>
*
* <table border="2" width="85%" align="center" frame="hsides" rules="rows">
* <colgroup align="left" span="3" />
* <colgroup align="left" />
* <colgroup align="center" />
* <colgroup align="center" />
*
* <thead>
* <tr><th colspan="3">Method</th> <th>Description</th> <th>Killable?</th> <th>Next</th></tr>
* </thead>
*
* <tbody>
* <tr><th colspan="3" align="left" border="0">{@link android.app.Activity#onCreate onCreate()}</th>
* <td>Called when the activity is first created.
* This is where you should do all of your normal static set up:
* create views, bind data to lists, etc. This method also
* provides you with a Bundle containing the activity's previously
* frozen state, if there was one.
* <p>Always followed by <code>onStart()</code>.</td>
* <td align="center">No</td>
* <td align="center"><code>onStart()</code></td>
* </tr>
*
* <tr><td rowspan="5" style="border-left: none; border-right: none;"> </td>
* <th colspan="2" align="left" border="0">{@link android.app.Activity#onRestart onRestart()}</th>
* <td>Called after your activity has been stopped, prior to it being
* started again.
* <p>Always followed by <code>onStart()</code></td>
* <td align="center">No</td>
* <td align="center"><code>onStart()</code></td>
* </tr>
*
* <tr><th colspan="2" align="left" border="0">{@link android.app.Activity#onStart onStart()}</th>
* <td>Called when the activity is becoming visible to the user.
* <p>Followed by <code>onResume()</code> if the activity comes
* to the foreground, or <code>onStop()</code> if it becomes hidden.</td>
* <td align="center">No</td>
* <td align="center"><code>onResume()</code> or <code>onStop()</code></td>
* </tr>
*
* <tr><td rowspan="2" style="border-left: none;"> </td>
* <th align="left" border="0">{@link android.app.Activity#onResume onResume()}</th>
* <td>Called when the activity will start
* interacting with the user. At this point your activity is at
* the top of the activity stack, with user input going to it.
* <p>Always followed by <code>onPause()</code>.</td>
* <td align="center">No</td>
* <td align="center"><code>onPause()</code></td>
* </tr>
*
* <tr><th align="left" border="0">{@link android.app.Activity#onPause onPause()}</th>
* <td>Called when the system is about to start resuming a previous
* activity. This is typically used to commit unsaved changes to
* persistent data, stop animations and other things that may be consuming
* CPU, etc. Implementations of this method must be very quick because
* the next activity will not be resumed until this method returns.
* <p>Followed by either <code>onResume()</code> if the activity
* returns back to the front, or <code>onStop()</code> if it becomes
* invisible to the user.</td>
* <td align="center"><font color="#800000"><strong>Pre-{@link android.os.Build.VERSION_CODES#HONEYCOMB}</strong></font></td>
* <td align="center"><code>onResume()</code> or<br>
* <code>onStop()</code></td>
* </tr>
*
* <tr><th colspan="2" align="left" border="0">{@link android.app.Activity#onStop onStop()}</th>
* <td>Called when the activity is no longer visible to the user, because
* another activity has been resumed and is covering this one. This
* may happen either because a new activity is being started, an existing
* one is being brought in front of this one, or this one is being
* destroyed.
* <p>Followed by either <code>onRestart()</code> if
* this activity is coming back to interact with the user, or
* <code>onDestroy()</code> if this activity is going away.</td>
* <td align="center"><font color="#800000"><strong>Yes</strong></font></td>
* <td align="center"><code>onRestart()</code> or<br>
* <code>onDestroy()</code></td>
* </tr>
*
* <tr><th colspan="3" align="left" border="0">{@link android.app.Activity#onDestroy onDestroy()}</th>
* <td>The final call you receive before your
* activity is destroyed. This can happen either because the
* activity is finishing (someone called {@link Activity#finish} on
* it, or because the system is temporarily destroying this
* instance of the activity to save space. You can distinguish
* between these two scenarios with the {@link
* Activity#isFinishing} method.</td>
* <td align="center"><font color="#800000"><strong>Yes</strong></font></td>
* <td align="center"><em>nothing</em></td>
* </tr>
* </tbody>
* </table>
*
* <p>Note the "Killable" column in the above table -- for those methods that
* are marked as being killable, after that method returns the process hosting the
* activity may killed by the system <em>at any time</em> without another line
* of its code being executed. Because of this, you should use the
* {@link #onPause} method to write any persistent data (such as user edits)
* to storage. In addition, the method
* {@link #onSaveInstanceState(Bundle)} is called before placing the activity
* in such a background state, allowing you to save away any dynamic instance
* state in your activity into the given Bundle, to be later received in
* {@link #onCreate} if the activity needs to be re-created.
* See the <a href="#ProcessLifecycle">Process Lifecycle</a>
* section for more information on how the lifecycle of a process is tied
* to the activities it is hosting. Note that it is important to save
* persistent data in {@link #onPause} instead of {@link #onSaveInstanceState}
* because the latter is not part of the lifecycle callbacks, so will not
* be called in every situation as described in its documentation.</p>
*
* <p class="note">Be aware that these semantics will change slightly between
* applications targeting platforms starting with {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* vs. those targeting prior platforms. Starting with Honeycomb, an application
* is not in the killable state until its {@link #onStop} has returned. This
* impacts when {@link #onSaveInstanceState(Bundle)} may be called (it may be
* safely called after {@link #onPause()} and allows and application to safely
* wait until {@link #onStop()} to save persistent state.</p>
*
* <p>For those methods that are not marked as being killable, the activity's
* process will not be killed by the system starting from the time the method
* is called and continuing after it returns. Thus an activity is in the killable
* state, for example, between after <code>onPause()</code> to the start of
* <code>onResume()</code>.</p>
*
* <a name="ConfigurationChanges"></a>
* <h3>Configuration Changes</h3>
*
* <p>If the configuration of the device (as defined by the
* {@link Configuration Resources.Configuration} class) changes,
* then anything displaying a user interface will need to update to match that
* configuration. Because Activity is the primary mechanism for interacting
* with the user, it includes special support for handling configuration
* changes.</p>
*
* <p>Unless you specify otherwise, a configuration change (such as a change
* in screen orientation, language, input devices, etc) will cause your
* current activity to be <em>destroyed</em>, going through the normal activity
* lifecycle process of {@link #onPause},
* {@link #onStop}, and {@link #onDestroy} as appropriate. If the activity
* had been in the foreground or visible to the user, once {@link #onDestroy} is
* called in that instance then a new instance of the activity will be
* created, with whatever savedInstanceState the previous instance had generated
* from {@link #onSaveInstanceState}.</p>
*
* <p>This is done because any application resource,
* including layout files, can change based on any configuration value. Thus
* the only safe way to handle a configuration change is to re-retrieve all
* resources, including layouts, drawables, and strings. Because activities
* must already know how to save their state and re-create themselves from
* that state, this is a convenient way to have an activity restart itself
* with a new configuration.</p>
*
* <p>In some special cases, you may want to bypass restarting of your
* activity based on one or more types of configuration changes. This is
* done with the {@link android.R.attr#configChanges android:configChanges}
* attribute in its manifest. For any types of configuration changes you say
* that you handle there, you will receive a call to your current activity's
* {@link #onConfigurationChanged} method instead of being restarted. If
* a configuration change involves any that you do not handle, however, the
* activity will still be restarted and {@link #onConfigurationChanged}
* will not be called.</p>
*
* <a name="StartingActivities"></a>
* <h3>Starting Activities and Getting Results</h3>
*
* <p>The {@link android.app.Activity#startActivity}
* method is used to start a
* new activity, which will be placed at the top of the activity stack. It
* takes a single argument, an {@link android.content.Intent Intent},
* which describes the activity
* to be executed.</p>
*
* <p>Sometimes you want to get a result back from an activity when it
* ends. For example, you may start an activity that lets the user pick
* a person in a list of contacts; when it ends, it returns the person
* that was selected. To do this, you call the
* {@link android.app.Activity#startActivityForResult(Intent, int)}
* version with a second integer parameter identifying the call. The result
* will come back through your {@link android.app.Activity#onActivityResult}
* method.</p>
*
* <p>When an activity exits, it can call
* {@link android.app.Activity#setResult(int)}
* to return data back to its parent. It must always supply a result code,
* which can be the standard results RESULT_CANCELED, RESULT_OK, or any
* custom values starting at RESULT_FIRST_USER. In addition, it can optionally
* return back an Intent containing any additional data it wants. All of this
* information appears back on the
* parent's <code>Activity.onActivityResult()</code>, along with the integer
* identifier it originally supplied.</p>
*
* <p>If a child activity fails for any reason (such as crashing), the parent
* activity will receive a result with the code RESULT_CANCELED.</p>
*
* <pre class="prettyprint">
* public class MyActivity extends Activity {
* ...
*
* static final int PICK_CONTACT_REQUEST = 0;
*
* protected boolean onKeyDown(int keyCode, KeyEvent event) {
* if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) {
* // When the user center presses, let them pick a contact.
* startActivityForResult(
* new Intent(Intent.ACTION_PICK,
* new Uri("content://contacts")),
* PICK_CONTACT_REQUEST);
* return true;
* }
* return false;
* }
*
* protected void onActivityResult(int requestCode, int resultCode,
* Intent data) {
* if (requestCode == PICK_CONTACT_REQUEST) {
* if (resultCode == RESULT_OK) {
* // A contact was picked. Here we will just display it
* // to the user.
* startActivity(new Intent(Intent.ACTION_VIEW, data));
* }
* }
* }
* }
* </pre>
*
* <a name="SavingPersistentState"></a>
* <h3>Saving Persistent State</h3>
*
* <p>There are generally two kinds of persistent state than an activity
* will deal with: shared document-like data (typically stored in a SQLite
* database using a {@linkplain android.content.ContentProvider content provider})
* and internal state such as user preferences.</p>
*
* <p>For content provider data, we suggest that activities use a
* "edit in place" user model. That is, any edits a user makes are effectively
* made immediately without requiring an additional confirmation step.
* Supporting this model is generally a simple matter of following two rules:</p>
*
* <ul>
* <li> <p>When creating a new document, the backing database entry or file for
* it is created immediately. For example, if the user chooses to write
* a new e-mail, a new entry for that e-mail is created as soon as they
* start entering data, so that if they go to any other activity after
* that point this e-mail will now appear in the list of drafts.</p>
* <li> <p>When an activity's <code>onPause()</code> method is called, it should
* commit to the backing content provider or file any changes the user
* has made. This ensures that those changes will be seen by any other
* activity that is about to run. You will probably want to commit
* your data even more aggressively at key times during your
* activity's lifecycle: for example before starting a new
* activity, before finishing your own activity, when the user
* switches between input fields, etc.</p>
* </ul>
*
* <p>This model is designed to prevent data loss when a user is navigating
* between activities, and allows the system to safely kill an activity (because
* system resources are needed somewhere else) at any time after it has been
* paused. Note this implies
* that the user pressing BACK from your activity does <em>not</em>
* mean "cancel" -- it means to leave the activity with its current contents
* saved away. Canceling edits in an activity must be provided through
* some other mechanism, such as an explicit "revert" or "undo" option.</p>
*
* <p>See the {@linkplain android.content.ContentProvider content package} for
* more information about content providers. These are a key aspect of how
* different activities invoke and propagate data between themselves.</p>
*
* <p>The Activity class also provides an API for managing internal persistent state
* associated with an activity. This can be used, for example, to remember
* the user's preferred initial display in a calendar (day view or week view)
* or the user's default home page in a web browser.</p>
*
* <p>Activity persistent state is managed
* with the method {@link #getPreferences},
* allowing you to retrieve and
* modify a set of name/value pairs associated with the activity. To use
* preferences that are shared across multiple application components
* (activities, receivers, services, providers), you can use the underlying
* {@link Context#getSharedPreferences Context.getSharedPreferences()} method
* to retrieve a preferences
* object stored under a specific name.
* (Note that it is not possible to share settings data across application
* packages -- for that you will need a content provider.)</p>
*
* <p>Here is an excerpt from a calendar activity that stores the user's
* preferred view mode in its persistent settings:</p>
*
* <pre class="prettyprint">
* public class CalendarActivity extends Activity {
* ...
*
* static final int DAY_VIEW_MODE = 0;
* static final int WEEK_VIEW_MODE = 1;
*
* private SharedPreferences mPrefs;
* private int mCurViewMode;
*
* protected void onCreate(Bundle savedInstanceState) {
* super.onCreate(savedInstanceState);
*
* SharedPreferences mPrefs = getSharedPreferences();
* mCurViewMode = mPrefs.getInt("view_mode" DAY_VIEW_MODE);
* }
*
* protected void onPause() {
* super.onPause();
*
* SharedPreferences.Editor ed = mPrefs.edit();
* ed.putInt("view_mode", mCurViewMode);
* ed.commit();
* }
* }
* </pre>
*
* <a name="Permissions"></a>
* <h3>Permissions</h3>
*
* <p>The ability to start a particular Activity can be enforced when it is
* declared in its
* manifest's {@link android.R.styleable#AndroidManifestActivity <activity>}
* tag. By doing so, other applications will need to declare a corresponding
* {@link android.R.styleable#AndroidManifestUsesPermission <uses-permission>}
* element in their own manifest to be able to start that activity.
*
* <p>See the <a href="{@docRoot}guide/topics/security/security.html">Security and Permissions</a>
* document for more information on permissions and security in general.
*
* <a name="ProcessLifecycle"></a>
* <h3>Process Lifecycle</h3>
*
* <p>The Android system attempts to keep application process around for as
* long as possible, but eventually will need to remove old processes when
* memory runs low. As described in <a href="#ActivityLifecycle">Activity
* Lifecycle</a>, the decision about which process to remove is intimately
* tied to the state of the user's interaction with it. In general, there
* are four states a process can be in based on the activities running in it,
* listed here in order of importance. The system will kill less important
* processes (the last ones) before it resorts to killing more important
* processes (the first ones).
*
* <ol>
* <li> <p>The <b>foreground activity</b> (the activity at the top of the screen
* that the user is currently interacting with) is considered the most important.
* Its process will only be killed as a last resort, if it uses more memory
* than is available on the device. Generally at this point the device has
* reached a memory paging state, so this is required in order to keep the user
* interface responsive.
* <li> <p>A <b>visible activity</b> (an activity that is visible to the user
* but not in the foreground, such as one sitting behind a foreground dialog)
* is considered extremely important and will not be killed unless that is
* required to keep the foreground activity running.
* <li> <p>A <b>background activity</b> (an activity that is not visible to
* the user and has been paused) is no longer critical, so the system may
* safely kill its process to reclaim memory for other foreground or
* visible processes. If its process needs to be killed, when the user navigates
* back to the activity (making it visible on the screen again), its
* {@link #onCreate} method will be called with the savedInstanceState it had previously
* supplied in {@link #onSaveInstanceState} so that it can restart itself in the same
* state as the user last left it.
* <li> <p>An <b>empty process</b> is one hosting no activities or other
* application components (such as {@link Service} or
* {@link android.content.BroadcastReceiver} classes). These are killed very
* quickly by the system as memory becomes low. For this reason, any
* background operation you do outside of an activity must be executed in the
* context of an activity BroadcastReceiver or Service to ensure that the system
* knows it needs to keep your process around.
* </ol>
*
* <p>Sometimes an Activity may need to do a long-running operation that exists
* independently of the activity lifecycle itself. An example may be a camera
* application that allows you to upload a picture to a web site. The upload
* may take a long time, and the application should allow the user to leave
* the application will it is executing. To accomplish this, your Activity
* should start a {@link Service} in which the upload takes place. This allows
* the system to properly prioritize your process (considering it to be more
* important than other non-visible applications) for the duration of the
* upload, independent of whether the original activity is paused, stopped,
* or finished.
*/
public class Activity extends ContextThemeWrapper
implements LayoutInflater.Factory2,
Window.Callback, KeyEvent.Callback,
OnCreateContextMenuListener, ComponentCallbacks2 {
private static final String TAG = "Activity";
/** Standard activity result: operation canceled. */
public static final int RESULT_CANCELED = 0;
/** Standard activity result: operation succeeded. */
public static final int RESULT_OK = -1;
/** Start of user-defined activity results. */
public static final int RESULT_FIRST_USER = 1;
private static final String WINDOW_HIERARCHY_TAG = "android:viewHierarchyState";
private static final String FRAGMENTS_TAG = "android:fragments";
private static final String SAVED_DIALOG_IDS_KEY = "android:savedDialogIds";
private static final String SAVED_DIALOGS_TAG = "android:savedDialogs";
private static final String SAVED_DIALOG_KEY_PREFIX = "android:dialog_";
private static final String SAVED_DIALOG_ARGS_KEY_PREFIX = "android:dialog_args_";
private static class ManagedDialog {
Dialog mDialog;
Bundle mArgs;
}
private SparseArray<ManagedDialog> mManagedDialogs;
// set by the thread after the constructor and before onCreate(Bundle savedInstanceState) is called.
private Instrumentation mInstrumentation;
private IBinder mToken;
private int mIdent;
/*package*/ String mEmbeddedID;
private Application mApplication;
/*package*/ Intent mIntent;
private ComponentName mComponent;
/*package*/ ActivityInfo mActivityInfo;
/*package*/ ActivityThread mMainThread;
Activity mParent;
boolean mCalled;
boolean mCheckedForLoaderManager;
boolean mLoadersStarted;
/*package*/ boolean mResumed;
private boolean mStopped;
boolean mFinished;
boolean mStartedActivity;
/** true if the activity is going through a transient pause */
/*package*/ boolean mTemporaryPause = false;
/** true if the activity is being destroyed in order to recreate it with a new configuration */
/*package*/ boolean mChangingConfigurations = false;
/*package*/ int mConfigChangeFlags;
/*package*/ Configuration mCurrentConfig;
private SearchManager mSearchManager;
private MenuInflater mMenuInflater;
static final class NonConfigurationInstances {
Object activity;
HashMap<String, Object> children;
ArrayList<Fragment> fragments;
SparseArray<LoaderManagerImpl> loaders;
}
/* package */ NonConfigurationInstances mLastNonConfigurationInstances;
private Window mWindow;
private WindowManager mWindowManager;
/*package*/ View mDecor = null;
/*package*/ boolean mWindowAdded = false;
/*package*/ boolean mVisibleFromServer = false;
/*package*/ boolean mVisibleFromClient = true;
/*package*/ ActionBarImpl mActionBar = null;
private CharSequence mTitle;
private int mTitleColor = 0;
final FragmentManagerImpl mFragments = new FragmentManagerImpl();
SparseArray<LoaderManagerImpl> mAllLoaderManagers;
LoaderManagerImpl mLoaderManager;
private static final class ManagedCursor {
ManagedCursor(Cursor cursor) {
mCursor = cursor;
mReleased = false;
mUpdated = false;
}
private final Cursor mCursor;
private boolean mReleased;
private boolean mUpdated;
}
private final ArrayList<ManagedCursor> mManagedCursors =
new ArrayList<ManagedCursor>();
// protected by synchronized (this)
int mResultCode = RESULT_CANCELED;
Intent mResultData = null;
private boolean mTitleReady = false;
private int mDefaultKeyMode = DEFAULT_KEYS_DISABLE;
private SpannableStringBuilder mDefaultKeySsb = null;
protected static final int[] FOCUSED_STATE_SET = {com.android.internal.R.attr.state_focused};
private final Object mInstanceTracker = StrictMode.trackActivity(this);
private Thread mUiThread;
final Handler mHandler = new Handler();
/** Return the intent that started this activity. */
public Intent getIntent() {
return mIntent;
}
/**
* Change the intent returned by {@link #getIntent}. This holds a
* reference to the given intent; it does not copy it. Often used in
* conjunction with {@link #onNewIntent}.
*
* @param newIntent The new Intent object to return from getIntent
*
* @see #getIntent
* @see #onNewIntent
*/
public void setIntent(Intent newIntent) {
mIntent = newIntent;
}
/** Return the application that owns this activity. */
public final Application getApplication() {
return mApplication;
}
/** Is this activity embedded inside of another activity? */
public final boolean isChild() {
return mParent != null;
}
/** Return the parent activity if this view is an embedded child. */
public final Activity getParent() {
return mParent;
}
/** Retrieve the window manager for showing custom windows. */
public WindowManager getWindowManager() {
return mWindowManager;
}
/**
* Retrieve the current {@link android.view.Window} for the activity.
* This can be used to directly access parts of the Window API that
* are not available through Activity/Screen.
*
* @return Window The current window, or null if the activity is not
* visual.
*/
public Window getWindow() {
return mWindow;
}
/**
* Return the LoaderManager for this fragment, creating it if needed.
*/
public LoaderManager getLoaderManager() {
if (mLoaderManager != null) {
return mLoaderManager;
}
mCheckedForLoaderManager = true;
mLoaderManager = getLoaderManager(-1, mLoadersStarted, true);
return mLoaderManager;
}
LoaderManagerImpl getLoaderManager(int index, boolean started, boolean create) {
if (mAllLoaderManagers == null) {
mAllLoaderManagers = new SparseArray<LoaderManagerImpl>();
}
LoaderManagerImpl lm = mAllLoaderManagers.get(index);
if (lm == null) {
if (create) {
lm = new LoaderManagerImpl(this, started);
mAllLoaderManagers.put(index, lm);
}
} else {
lm.updateActivity(this);
}
return lm;
}
/**
* Calls {@link android.view.Window#getCurrentFocus} on the
* Window of this Activity to return the currently focused view.
*
* @return View The current View with focus or null.
*
* @see #getWindow
* @see android.view.Window#getCurrentFocus
*/
public View getCurrentFocus() {
return mWindow != null ? mWindow.getCurrentFocus() : null;
}
/**
* Called when the activity is starting. This is where most initialization
* should go: calling {@link #setContentView(int)} to inflate the
* activity's UI, using {@link #findViewById} to programmatically interact
* with widgets in the UI, calling
* {@link #managedQuery(android.net.Uri , String[], String, String[], String)} to retrieve
* cursors for data being displayed, etc.
*
* <p>You can call {@link #finish} from within this function, in
* which case onDestroy() will be immediately called without any of the rest
* of the activity lifecycle ({@link #onStart}, {@link #onResume},
* {@link #onPause}, etc) executing.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @param savedInstanceState If the activity is being re-initialized after
* previously being shut down then this Bundle contains the data it most
* recently supplied in {@link #onSaveInstanceState}. <b><i>Note: Otherwise it is null.</i></b>
*
* @see #onStart
* @see #onSaveInstanceState
* @see #onRestoreInstanceState
* @see #onPostCreate
*/
protected void onCreate(Bundle savedInstanceState) {
if (mLastNonConfigurationInstances != null) {
mAllLoaderManagers = mLastNonConfigurationInstances.loaders;
}
if (savedInstanceState != null) {
Parcelable p = savedInstanceState.getParcelable(FRAGMENTS_TAG);
mFragments.restoreAllState(p, mLastNonConfigurationInstances != null
? mLastNonConfigurationInstances.fragments : null);
}
mFragments.dispatchCreate();
getApplication().dispatchActivityCreated(this, savedInstanceState);
mCalled = true;
}
/**
* The hook for {@link ActivityThread} to restore the state of this activity.
*
* Calls {@link #onSaveInstanceState(android.os.Bundle)} and
* {@link #restoreManagedDialogs(android.os.Bundle)}.
*
* @param savedInstanceState contains the saved state
*/
final void performRestoreInstanceState(Bundle savedInstanceState) {
onRestoreInstanceState(savedInstanceState);
restoreManagedDialogs(savedInstanceState);
}
/**
* This method is called after {@link #onStart} when the activity is
* being re-initialized from a previously saved state, given here in
* <var>savedInstanceState</var>. Most implementations will simply use {@link #onCreate}
* to restore their state, but it is sometimes convenient to do it here
* after all of the initialization has been done or to allow subclasses to
* decide whether to use your default implementation. The default
* implementation of this method performs a restore of any view state that
* had previously been frozen by {@link #onSaveInstanceState}.
*
* <p>This method is called between {@link #onStart} and
* {@link #onPostCreate}.
*
* @param savedInstanceState the data most recently supplied in {@link #onSaveInstanceState}.
*
* @see #onCreate
* @see #onPostCreate
* @see #onResume
* @see #onSaveInstanceState
*/
protected void onRestoreInstanceState(Bundle savedInstanceState) {
if (mWindow != null) {
Bundle windowState = savedInstanceState.getBundle(WINDOW_HIERARCHY_TAG);
if (windowState != null) {
mWindow.restoreHierarchyState(windowState);
}
}
}
/**
* Restore the state of any saved managed dialogs.
*
* @param savedInstanceState The bundle to restore from.
*/
private void restoreManagedDialogs(Bundle savedInstanceState) {
final Bundle b = savedInstanceState.getBundle(SAVED_DIALOGS_TAG);
if (b == null) {
return;
}
final int[] ids = b.getIntArray(SAVED_DIALOG_IDS_KEY);
final int numDialogs = ids.length;
mManagedDialogs = new SparseArray<ManagedDialog>(numDialogs);
for (int i = 0; i < numDialogs; i++) {
final Integer dialogId = ids[i];
Bundle dialogState = b.getBundle(savedDialogKeyFor(dialogId));
if (dialogState != null) {
// Calling onRestoreInstanceState() below will invoke dispatchOnCreate
// so tell createDialog() not to do it, otherwise we get an exception
final ManagedDialog md = new ManagedDialog();
md.mArgs = b.getBundle(savedDialogArgsKeyFor(dialogId));
md.mDialog = createDialog(dialogId, dialogState, md.mArgs);
if (md.mDialog != null) {
mManagedDialogs.put(dialogId, md);
onPrepareDialog(dialogId, md.mDialog, md.mArgs);
md.mDialog.onRestoreInstanceState(dialogState);
}
}
}
}
private Dialog createDialog(Integer dialogId, Bundle state, Bundle args) {
final Dialog dialog = onCreateDialog(dialogId, args);
if (dialog == null) {
return null;
}
dialog.dispatchOnCreate(state);
return dialog;
}
private static String savedDialogKeyFor(int key) {
return SAVED_DIALOG_KEY_PREFIX + key;
}
private static String savedDialogArgsKeyFor(int key) {
return SAVED_DIALOG_ARGS_KEY_PREFIX + key;
}
/**
* Called when activity start-up is complete (after {@link #onStart}
* and {@link #onRestoreInstanceState} have been called). Applications will
* generally not implement this method; it is intended for system
* classes to do final initialization after application code has run.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @param savedInstanceState If the activity is being re-initialized after
* previously being shut down then this Bundle contains the data it most
* recently supplied in {@link #onSaveInstanceState}. <b><i>Note: Otherwise it is null.</i></b>
* @see #onCreate
*/
protected void onPostCreate(Bundle savedInstanceState) {
if (!isChild()) {
mTitleReady = true;
onTitleChanged(getTitle(), getTitleColor());
}
mCalled = true;
}
/**
* Called after {@link #onCreate} — or after {@link #onRestart} when
* the activity had been stopped, but is now again being displayed to the
* user. It will be followed by {@link #onResume}.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onCreate
* @see #onStop
* @see #onResume
*/
protected void onStart() {
mCalled = true;
if (!mLoadersStarted) {
mLoadersStarted = true;
if (mLoaderManager != null) {
mLoaderManager.doStart();
} else if (!mCheckedForLoaderManager) {
mLoaderManager = getLoaderManager(-1, mLoadersStarted, false);
}
mCheckedForLoaderManager = true;
}
getApplication().dispatchActivityStarted(this);
}
/**
* Called after {@link #onStop} when the current activity is being
* re-displayed to the user (the user has navigated back to it). It will
* be followed by {@link #onStart} and then {@link #onResume}.
*
* <p>For activities that are using raw {@link Cursor} objects (instead of
* creating them through
* {@link #managedQuery(android.net.Uri , String[], String, String[], String)},
* this is usually the place
* where the cursor should be requeried (because you had deactivated it in
* {@link #onStop}.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onStop
* @see #onStart
* @see #onResume
*/
protected void onRestart() {
mCalled = true;
}
/**
* Called after {@link #onRestoreInstanceState}, {@link #onRestart}, or
* {@link #onPause}, for your activity to start interacting with the user.
* This is a good place to begin animations, open exclusive-access devices
* (such as the camera), etc.
*
* <p>Keep in mind that onResume is not the best indicator that your activity
* is visible to the user; a system window such as the keyguard may be in
* front. Use {@link #onWindowFocusChanged} to know for certain that your
* activity is visible to the user (for example, to resume a game).
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onRestoreInstanceState
* @see #onRestart
* @see #onPostResume
* @see #onPause
*/
protected void onResume() {
getApplication().dispatchActivityResumed(this);
mCalled = true;
}
/**
* Called when activity resume is complete (after {@link #onResume} has
* been called). Applications will generally not implement this method;
* it is intended for system classes to do final setup after application
* resume code has run.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onResume
*/
protected void onPostResume() {
final Window win = getWindow();
if (win != null) win.makeActive();
if (mActionBar != null) mActionBar.setShowHideAnimationEnabled(true);
mCalled = true;
}
/**
* This is called for activities that set launchMode to "singleTop" in
* their package, or if a client used the {@link Intent#FLAG_ACTIVITY_SINGLE_TOP}
* flag when calling {@link #startActivity}. In either case, when the
* activity is re-launched while at the top of the activity stack instead
* of a new instance of the activity being started, onNewIntent() will be
* called on the existing instance with the Intent that was used to
* re-launch it.
*
* <p>An activity will always be paused before receiving a new intent, so
* you can count on {@link #onResume} being called after this method.
*
* <p>Note that {@link #getIntent} still returns the original Intent. You
* can use {@link #setIntent} to update it to this new Intent.
*
* @param intent The new intent that was started for the activity.
*
* @see #getIntent
* @see #setIntent
* @see #onResume
*/
protected void onNewIntent(Intent intent) {
}
/**
* The hook for {@link ActivityThread} to save the state of this activity.
*
* Calls {@link #onSaveInstanceState(android.os.Bundle)}
* and {@link #saveManagedDialogs(android.os.Bundle)}.
*
* @param outState The bundle to save the state to.
*/
final void performSaveInstanceState(Bundle outState) {
onSaveInstanceState(outState);
saveManagedDialogs(outState);
}
/**
* Called to retrieve per-instance state from an activity before being killed
* so that the state can be restored in {@link #onCreate} or
* {@link #onRestoreInstanceState} (the {@link Bundle} populated by this method
* will be passed to both).
*
* <p>This method is called before an activity may be killed so that when it
* comes back some time in the future it can restore its state. For example,
* if activity B is launched in front of activity A, and at some point activity
* A is killed to reclaim resources, activity A will have a chance to save the
* current state of its user interface via this method so that when the user
* returns to activity A, the state of the user interface can be restored
* via {@link #onCreate} or {@link #onRestoreInstanceState}.
*
* <p>Do not confuse this method with activity lifecycle callbacks such as
* {@link #onPause}, which is always called when an activity is being placed
* in the background or on its way to destruction, or {@link #onStop} which
* is called before destruction. One example of when {@link #onPause} and
* {@link #onStop} is called and not this method is when a user navigates back
* from activity B to activity A: there is no need to call {@link #onSaveInstanceState}
* on B because that particular instance will never be restored, so the
* system avoids calling it. An example when {@link #onPause} is called and
* not {@link #onSaveInstanceState} is when activity B is launched in front of activity A:
* the system may avoid calling {@link #onSaveInstanceState} on activity A if it isn't
* killed during the lifetime of B since the state of the user interface of
* A will stay intact.
*
* <p>The default implementation takes care of most of the UI per-instance
* state for you by calling {@link android.view.View#onSaveInstanceState()} on each
* view in the hierarchy that has an id, and by saving the id of the currently
* focused view (all of which is restored by the default implementation of
* {@link #onRestoreInstanceState}). If you override this method to save additional
* information not captured by each individual view, you will likely want to
* call through to the default implementation, otherwise be prepared to save
* all of the state of each view yourself.
*
* <p>If called, this method will occur before {@link #onStop}. There are
* no guarantees about whether it will occur before or after {@link #onPause}.
*
* @param outState Bundle in which to place your saved state.
*
* @see #onCreate
* @see #onRestoreInstanceState
* @see #onPause
*/
protected void onSaveInstanceState(Bundle outState) {
outState.putBundle(WINDOW_HIERARCHY_TAG, mWindow.saveHierarchyState());
Parcelable p = mFragments.saveAllState();
if (p != null) {
outState.putParcelable(FRAGMENTS_TAG, p);
}
getApplication().dispatchActivitySaveInstanceState(this, outState);
}
/**
* Save the state of any managed dialogs.
*
* @param outState place to store the saved state.
*/
private void saveManagedDialogs(Bundle outState) {
if (mManagedDialogs == null) {
return;
}
final int numDialogs = mManagedDialogs.size();
if (numDialogs == 0) {
return;
}
Bundle dialogState = new Bundle();
int[] ids = new int[mManagedDialogs.size()];
// save each dialog's bundle, gather the ids
for (int i = 0; i < numDialogs; i++) {
final int key = mManagedDialogs.keyAt(i);
ids[i] = key;
final ManagedDialog md = mManagedDialogs.valueAt(i);
dialogState.putBundle(savedDialogKeyFor(key), md.mDialog.onSaveInstanceState());
if (md.mArgs != null) {
dialogState.putBundle(savedDialogArgsKeyFor(key), md.mArgs);
}
}
dialogState.putIntArray(SAVED_DIALOG_IDS_KEY, ids);
outState.putBundle(SAVED_DIALOGS_TAG, dialogState);
}
/**
* Called as part of the activity lifecycle when an activity is going into
* the background, but has not (yet) been killed. The counterpart to
* {@link #onResume}.
*
* <p>When activity B is launched in front of activity A, this callback will
* be invoked on A. B will not be created until A's {@link #onPause} returns,
* so be sure to not do anything lengthy here.
*
* <p>This callback is mostly used for saving any persistent state the
* activity is editing, to present a "edit in place" model to the user and
* making sure nothing is lost if there are not enough resources to start
* the new activity without first killing this one. This is also a good
* place to do things like stop animations and other things that consume a
* noticeable mount of CPU in order to make the switch to the next activity
* as fast as possible, or to close resources that are exclusive access
* such as the camera.
*
* <p>In situations where the system needs more memory it may kill paused
* processes to reclaim resources. Because of this, you should be sure
* that all of your state is saved by the time you return from
* this function. In general {@link #onSaveInstanceState} is used to save
* per-instance state in the activity and this method is used to store
* global persistent data (in content providers, files, etc.)
*
* <p>After receiving this call you will usually receive a following call
* to {@link #onStop} (after the next activity has been resumed and
* displayed), however in some cases there will be a direct call back to
* {@link #onResume} without going through the stopped state.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onResume
* @see #onSaveInstanceState
* @see #onStop
*/
protected void onPause() {
getApplication().dispatchActivityPaused(this);
mCalled = true;
}
/**
* Called as part of the activity lifecycle when an activity is about to go
* into the background as the result of user choice. For example, when the
* user presses the Home key, {@link #onUserLeaveHint} will be called, but
* when an incoming phone call causes the in-call Activity to be automatically
* brought to the foreground, {@link #onUserLeaveHint} will not be called on
* the activity being interrupted. In cases when it is invoked, this method
* is called right before the activity's {@link #onPause} callback.
*
* <p>This callback and {@link #onUserInteraction} are intended to help
* activities manage status bar notifications intelligently; specifically,
* for helping activities determine the proper time to cancel a notfication.
*
* @see #onUserInteraction()
*/
protected void onUserLeaveHint() {
}
/**
* Generate a new thumbnail for this activity. This method is called before
* pausing the activity, and should draw into <var>outBitmap</var> the
* imagery for the desired thumbnail in the dimensions of that bitmap. It
* can use the given <var>canvas</var>, which is configured to draw into the
* bitmap, for rendering if desired.
*
* <p>The default implementation returns fails and does not draw a thumbnail;
* this will result in the platform creating its own thumbnail if needed.
*
* @param outBitmap The bitmap to contain the thumbnail.
* @param canvas Can be used to render into the bitmap.
*
* @return Return true if you have drawn into the bitmap; otherwise after
* you return it will be filled with a default thumbnail.
*
* @see #onCreateDescription
* @see #onSaveInstanceState
* @see #onPause
*/
public boolean onCreateThumbnail(Bitmap outBitmap, Canvas canvas) {
return false;
}
/**
* Generate a new description for this activity. This method is called
* before pausing the activity and can, if desired, return some textual
* description of its current state to be displayed to the user.
*
* <p>The default implementation returns null, which will cause you to
* inherit the description from the previous activity. If all activities
* return null, generally the label of the top activity will be used as the
* description.
*
* @return A description of what the user is doing. It should be short and
* sweet (only a few words).
*
* @see #onCreateThumbnail
* @see #onSaveInstanceState
* @see #onPause
*/
public CharSequence onCreateDescription() {
return null;
}
/**
* Called when you are no longer visible to the user. You will next
* receive either {@link #onRestart}, {@link #onDestroy}, or nothing,
* depending on later user activity.
*
* <p>Note that this method may never be called, in low memory situations
* where the system does not have enough memory to keep your activity's
* process running after its {@link #onPause} method is called.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onRestart
* @see #onResume
* @see #onSaveInstanceState
* @see #onDestroy
*/
protected void onStop() {
if (mActionBar != null) mActionBar.setShowHideAnimationEnabled(false);
getApplication().dispatchActivityStopped(this);
mCalled = true;
}
/**
* Perform any final cleanup before an activity is destroyed. This can
* happen either because the activity is finishing (someone called
* {@link #finish} on it, or because the system is temporarily destroying
* this instance of the activity to save space. You can distinguish
* between these two scenarios with the {@link #isFinishing} method.
*
* <p><em>Note: do not count on this method being called as a place for
* saving data! For example, if an activity is editing data in a content
* provider, those edits should be committed in either {@link #onPause} or
* {@link #onSaveInstanceState}, not here.</em> This method is usually implemented to
* free resources like threads that are associated with an activity, so
* that a destroyed activity does not leave such things around while the
* rest of its application is still running. There are situations where
* the system will simply kill the activity's hosting process without
* calling this method (or any others) in it, so it should not be used to
* do things that are intended to remain around after the process goes
* away.
*
* <p><em>Derived classes must call through to the super class's
* implementation of this method. If they do not, an exception will be
* thrown.</em></p>
*
* @see #onPause
* @see #onStop
* @see #finish
* @see #isFinishing
*/
protected void onDestroy() {
mCalled = true;
// dismiss any dialogs we are managing.
if (mManagedDialogs != null) {
final int numDialogs = mManagedDialogs.size();
for (int i = 0; i < numDialogs; i++) {
final ManagedDialog md = mManagedDialogs.valueAt(i);
if (md.mDialog.isShowing()) {
md.mDialog.dismiss();
}
}
mManagedDialogs = null;
}
// close any cursors we are managing.
synchronized (mManagedCursors) {
int numCursors = mManagedCursors.size();
for (int i = 0; i < numCursors; i++) {
ManagedCursor c = mManagedCursors.get(i);
if (c != null) {
c.mCursor.close();
}
}
mManagedCursors.clear();
}
// Close any open search dialog
if (mSearchManager != null) {
mSearchManager.stopSearch();
}
getApplication().dispatchActivityDestroyed(this);
}
/**
* Called by the system when the device configuration changes while your
* activity is running. Note that this will <em>only</em> be called if
* you have selected configurations you would like to handle with the
* {@link android.R.attr#configChanges} attribute in your manifest. If
* any configuration change occurs that is not selected to be reported
* by that attribute, then instead of reporting it the system will stop
* and restart the activity (to have it launched with the new
* configuration).
*
* <p>At the time that this function has been called, your Resources
* object will have been updated to return resource values matching the
* new configuration.
*
* @param newConfig The new device configuration.
*/
public void onConfigurationChanged(Configuration newConfig) {
mCalled = true;
mFragments.dispatchConfigurationChanged(newConfig);
if (mWindow != null) {
// Pass the configuration changed event to the window
mWindow.onConfigurationChanged(newConfig);
}
if (mActionBar != null) {
// Do this last; the action bar will need to access
// view changes from above.
mActionBar.onConfigurationChanged(newConfig);
}
}
/**
* If this activity is being destroyed because it can not handle a
* configuration parameter being changed (and thus its
* {@link #onConfigurationChanged(Configuration)} method is
* <em>not</em> being called), then you can use this method to discover
* the set of changes that have occurred while in the process of being
* destroyed. Note that there is no guarantee that these will be
* accurate (other changes could have happened at any time), so you should
* only use this as an optimization hint.
*
* @return Returns a bit field of the configuration parameters that are
* changing, as defined by the {@link android.content.res.Configuration}
* class.
*/
public int getChangingConfigurations() {
return mConfigChangeFlags;
}
/**
* Retrieve the non-configuration instance data that was previously
* returned by {@link #onRetainNonConfigurationInstance()}. This will
* be available from the initial {@link #onCreate} and
* {@link #onStart} calls to the new instance, allowing you to extract
* any useful dynamic state from the previous instance.
*
* <p>Note that the data you retrieve here should <em>only</em> be used
* as an optimization for handling configuration changes. You should always
* be able to handle getting a null pointer back, and an activity must
* still be able to restore itself to its previous state (through the
* normal {@link #onSaveInstanceState(Bundle)} mechanism) even if this
* function returns null.
*
* @return Returns the object previously returned by
* {@link #onRetainNonConfigurationInstance()}.
*
* @deprecated Use the new {@link Fragment} API
* {@link Fragment#setRetainInstance(boolean)} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public Object getLastNonConfigurationInstance() {
return mLastNonConfigurationInstances != null
? mLastNonConfigurationInstances.activity : null;
}
/**
* Called by the system, as part of destroying an
* activity due to a configuration change, when it is known that a new
* instance will immediately be created for the new configuration. You
* can return any object you like here, including the activity instance
* itself, which can later be retrieved by calling
* {@link #getLastNonConfigurationInstance()} in the new activity
* instance.
*
* <em>If you are targeting {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* or later, consider instead using a {@link Fragment} with
* {@link Fragment#setRetainInstance(boolean)
* Fragment.setRetainInstance(boolean}.</em>
*
* <p>This function is called purely as an optimization, and you must
* not rely on it being called. When it is called, a number of guarantees
* will be made to help optimize configuration switching:
* <ul>
* <li> The function will be called between {@link #onStop} and
* {@link #onDestroy}.
* <li> A new instance of the activity will <em>always</em> be immediately
* created after this one's {@link #onDestroy()} is called. In particular,
* <em>no</em> messages will be dispatched during this time (when the returned
* object does not have an activity to be associated with).
* <li> The object you return here will <em>always</em> be available from
* the {@link #getLastNonConfigurationInstance()} method of the following
* activity instance as described there.
* </ul>
*
* <p>These guarantees are designed so that an activity can use this API
* to propagate extensive state from the old to new activity instance, from
* loaded bitmaps, to network connections, to evenly actively running
* threads. Note that you should <em>not</em> propagate any data that
* may change based on the configuration, including any data loaded from
* resources such as strings, layouts, or drawables.
*
* <p>The guarantee of no message handling during the switch to the next
* activity simplifies use with active objects. For example if your retained
* state is an {@link android.os.AsyncTask} you are guaranteed that its
* call back functions (like {@link android.os.AsyncTask#onPostExecute}) will
* not be called from the call here until you execute the next instance's
* {@link #onCreate(Bundle)}. (Note however that there is of course no such
* guarantee for {@link android.os.AsyncTask#doInBackground} since that is
* running in a separate thread.)
*
* @return Return any Object holding the desired state to propagate to the
* next activity instance.
*
* @deprecated Use the new {@link Fragment} API
* {@link Fragment#setRetainInstance(boolean)} instead; this is also
* available on older platforms through the Android compatibility package.
*/
public Object onRetainNonConfigurationInstance() {
return null;
}
/**
* Retrieve the non-configuration instance data that was previously
* returned by {@link #onRetainNonConfigurationChildInstances()}. This will
* be available from the initial {@link #onCreate} and
* {@link #onStart} calls to the new instance, allowing you to extract
* any useful dynamic state from the previous instance.
*
* <p>Note that the data you retrieve here should <em>only</em> be used
* as an optimization for handling configuration changes. You should always
* be able to handle getting a null pointer back, and an activity must
* still be able to restore itself to its previous state (through the
* normal {@link #onSaveInstanceState(Bundle)} mechanism) even if this
* function returns null.
*
* @return Returns the object previously returned by
* {@link #onRetainNonConfigurationChildInstances()}
*/
HashMap<String, Object> getLastNonConfigurationChildInstances() {
return mLastNonConfigurationInstances != null
? mLastNonConfigurationInstances.children : null;
}
/**
* This method is similar to {@link #onRetainNonConfigurationInstance()} except that
* it should return either a mapping from child activity id strings to arbitrary objects,
* or null. This method is intended to be used by Activity framework subclasses that control a
* set of child activities, such as ActivityGroup. The same guarantees and restrictions apply
* as for {@link #onRetainNonConfigurationInstance()}. The default implementation returns null.
*/
HashMap<String,Object> onRetainNonConfigurationChildInstances() {
return null;
}
NonConfigurationInstances retainNonConfigurationInstances() {
Object activity = onRetainNonConfigurationInstance();
HashMap<String, Object> children = onRetainNonConfigurationChildInstances();
ArrayList<Fragment> fragments = mFragments.retainNonConfig();
boolean retainLoaders = false;
if (mAllLoaderManagers != null) {
// prune out any loader managers that were already stopped and so
// have nothing useful to retain.
for (int i=mAllLoaderManagers.size()-1; i>=0; i--) {
LoaderManagerImpl lm = mAllLoaderManagers.valueAt(i);
if (lm.mRetaining) {
retainLoaders = true;
} else {
lm.doDestroy();
mAllLoaderManagers.removeAt(i);
}
}
}
if (activity == null && children == null && fragments == null && !retainLoaders) {
return null;
}
NonConfigurationInstances nci = new NonConfigurationInstances();
nci.activity = activity;
nci.children = children;
nci.fragments = fragments;
nci.loaders = mAllLoaderManagers;
return nci;
}
public void onLowMemory() {
mCalled = true;
mFragments.dispatchLowMemory();
}
public void onTrimMemory(int level) {
mCalled = true;
mFragments.dispatchTrimMemory(level);
}
/**
* Return the FragmentManager for interacting with fragments associated
* with this activity.
*/
public FragmentManager getFragmentManager() {
return mFragments;
}
void invalidateFragmentIndex(int index) {
//Log.v(TAG, "invalidateFragmentIndex: index=" + index);
if (mAllLoaderManagers != null) {
LoaderManagerImpl lm = mAllLoaderManagers.get(index);
if (lm != null && !lm.mRetaining) {
lm.doDestroy();
mAllLoaderManagers.remove(index);
}
}
}
/**
* Called when a Fragment is being attached to this activity, immediately
* after the call to its {@link Fragment#onAttach Fragment.onAttach()}
* method and before {@link Fragment#onCreate Fragment.onCreate()}.
*/
public void onAttachFragment(Fragment fragment) {
}
/**
* Wrapper around
* {@link ContentResolver#query(android.net.Uri , String[], String, String[], String)}
* that gives the resulting {@link Cursor} to call
* {@link #startManagingCursor} so that the activity will manage its
* lifecycle for you.
*
* <em>If you are targeting {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* or later, consider instead using {@link LoaderManager} instead, available
* via {@link #getLoaderManager()}.</em>
*
* <p><strong>Warning:</strong> Do not call {@link Cursor#close()} on a cursor obtained using
* this method, because the activity will do that for you at the appropriate time. However, if
* you call {@link #stopManagingCursor} on a cursor from a managed query, the system <em>will
* not</em> automatically close the cursor and, in that case, you must call
* {@link Cursor#close()}.</p>
*
* @param uri The URI of the content provider to query.
* @param projection List of columns to return.
* @param selection SQL WHERE clause.
* @param sortOrder SQL ORDER BY clause.
*
* @return The Cursor that was returned by query().
*
* @see ContentResolver#query(android.net.Uri , String[], String, String[], String)
* @see #startManagingCursor
* @hide
*
* @deprecated Use {@link CursorLoader} instead.
*/
@Deprecated
public final Cursor managedQuery(Uri uri, String[] projection, String selection,
String sortOrder) {
Cursor c = getContentResolver().query(uri, projection, selection, null, sortOrder);
if (c != null) {
startManagingCursor(c);
}
return c;
}
/**
* Wrapper around
* {@link ContentResolver#query(android.net.Uri , String[], String, String[], String)}
* that gives the resulting {@link Cursor} to call
* {@link #startManagingCursor} so that the activity will manage its
* lifecycle for you.
*
* <em>If you are targeting {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* or later, consider instead using {@link LoaderManager} instead, available
* via {@link #getLoaderManager()}.</em>
*
* <p><strong>Warning:</strong> Do not call {@link Cursor#close()} on a cursor obtained using
* this method, because the activity will do that for you at the appropriate time. However, if
* you call {@link #stopManagingCursor} on a cursor from a managed query, the system <em>will
* not</em> automatically close the cursor and, in that case, you must call
* {@link Cursor#close()}.</p>
*
* @param uri The URI of the content provider to query.
* @param projection List of columns to return.
* @param selection SQL WHERE clause.
* @param selectionArgs The arguments to selection, if any ?s are pesent
* @param sortOrder SQL ORDER BY clause.
*
* @return The Cursor that was returned by query().
*
* @see ContentResolver#query(android.net.Uri , String[], String, String[], String)
* @see #startManagingCursor
*
* @deprecated Use {@link CursorLoader} instead.
*/
@Deprecated
public final Cursor managedQuery(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
Cursor c = getContentResolver().query(uri, projection, selection, selectionArgs, sortOrder);
if (c != null) {
startManagingCursor(c);
}
return c;
}
/**
* This method allows the activity to take care of managing the given
* {@link Cursor}'s lifecycle for you based on the activity's lifecycle.
* That is, when the activity is stopped it will automatically call
* {@link Cursor#deactivate} on the given Cursor, and when it is later restarted
* it will call {@link Cursor#requery} for you. When the activity is
* destroyed, all managed Cursors will be closed automatically.
*
* <em>If you are targeting {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* or later, consider instead using {@link LoaderManager} instead, available
* via {@link #getLoaderManager()}.</em>
*
* <p><strong>Warning:</strong> Do not call {@link Cursor#close()} on cursor obtained from
* {@link #managedQuery}, because the activity will do that for you at the appropriate time.
* However, if you call {@link #stopManagingCursor} on a cursor from a managed query, the system
* <em>will not</em> automatically close the cursor and, in that case, you must call
* {@link Cursor#close()}.</p>
*
* @param c The Cursor to be managed.
*
* @see #managedQuery(android.net.Uri , String[], String, String[], String)
* @see #stopManagingCursor
*
* @deprecated Use the new {@link android.content.CursorLoader} class with
* {@link LoaderManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public void startManagingCursor(Cursor c) {
synchronized (mManagedCursors) {
mManagedCursors.add(new ManagedCursor(c));
}
}
/**
* Given a Cursor that was previously given to
* {@link #startManagingCursor}, stop the activity's management of that
* cursor.
*
* <p><strong>Warning:</strong> After calling this method on a cursor from a managed query,
* the system <em>will not</em> automatically close the cursor and you must call
* {@link Cursor#close()}.</p>
*
* @param c The Cursor that was being managed.
*
* @see #startManagingCursor
*
* @deprecated Use the new {@link android.content.CursorLoader} class with
* {@link LoaderManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public void stopManagingCursor(Cursor c) {
synchronized (mManagedCursors) {
final int N = mManagedCursors.size();
for (int i=0; i<N; i++) {
ManagedCursor mc = mManagedCursors.get(i);
if (mc.mCursor == c) {
mManagedCursors.remove(i);
break;
}
}
}
}
/**
* @deprecated As of {@link android.os.Build.VERSION_CODES#GINGERBREAD}
* this is a no-op.
* @hide
*/
@Deprecated
public void setPersistent(boolean isPersistent) {
}
/**
* Finds a view that was identified by the id attribute from the XML that
* was processed in {@link #onCreate}.
*
* @return The view if found or null otherwise.
*/
public View findViewById(int id) {
return getWindow().findViewById(id);
}
/**
* Retrieve a reference to this activity's ActionBar.
*
* @return The Activity's ActionBar, or null if it does not have one.
*/
public ActionBar getActionBar() {
initActionBar();
return mActionBar;
}
/**
* Creates a new ActionBar, locates the inflated ActionBarView,
* initializes the ActionBar with the view, and sets mActionBar.
*/
private void initActionBar() {
Window window = getWindow();
// Initializing the window decor can change window feature flags.
// Make sure that we have the correct set before performing the test below.
window.getDecorView();
if (isChild() || !window.hasFeature(Window.FEATURE_ACTION_BAR) || mActionBar != null) {
return;
}
mActionBar = new ActionBarImpl(this);
}
/**
* Set the activity content from a layout resource. The resource will be
* inflated, adding all top-level views to the activity.
*
* @param layoutResID Resource ID to be inflated.
*
* @see #setContentView(android.view.View)
* @see #setContentView(android.view.View, android.view.ViewGroup.LayoutParams)
*/
public void setContentView(int layoutResID) {
getWindow().setContentView(layoutResID);
initActionBar();
}
/**
* Set the activity content to an explicit view. This view is placed
* directly into the activity's view hierarchy. It can itself be a complex
* view hierarchy. When calling this method, the layout parameters of the
* specified view are ignored. Both the width and the height of the view are
* set by default to {@link ViewGroup.LayoutParams#MATCH_PARENT}. To use
* your own layout parameters, invoke
* {@link #setContentView(android.view.View, android.view.ViewGroup.LayoutParams)}
* instead.
*
* @param view The desired content to display.
*
* @see #setContentView(int)
* @see #setContentView(android.view.View, android.view.ViewGroup.LayoutParams)
*/
public void setContentView(View view) {
getWindow().setContentView(view);
initActionBar();
}
/**
* Set the activity content to an explicit view. This view is placed
* directly into the activity's view hierarchy. It can itself be a complex
* view hierarchy.
*
* @param view The desired content to display.
* @param params Layout parameters for the view.
*
* @see #setContentView(android.view.View)
* @see #setContentView(int)
*/
public void setContentView(View view, ViewGroup.LayoutParams params) {
getWindow().setContentView(view, params);
initActionBar();
}
/**
* Add an additional content view to the activity. Added after any existing
* ones in the activity -- existing views are NOT removed.
*
* @param view The desired content to display.
* @param params Layout parameters for the view.
*/
public void addContentView(View view, ViewGroup.LayoutParams params) {
getWindow().addContentView(view, params);
initActionBar();
}
/**
* Sets whether this activity is finished when touched outside its window's
* bounds.
*/
public void setFinishOnTouchOutside(boolean finish) {
mWindow.setCloseOnTouchOutside(finish);
}
/**
* Use with {@link #setDefaultKeyMode} to turn off default handling of
* keys.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_DISABLE = 0;
/**
* Use with {@link #setDefaultKeyMode} to launch the dialer during default
* key handling.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_DIALER = 1;
/**
* Use with {@link #setDefaultKeyMode} to execute a menu shortcut in
* default key handling.
*
* <p>That is, the user does not need to hold down the menu key to execute menu shortcuts.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_SHORTCUT = 2;
/**
* Use with {@link #setDefaultKeyMode} to specify that unhandled keystrokes
* will start an application-defined search. (If the application or activity does not
* actually define a search, the the keys will be ignored.)
*
* <p>See {@link android.app.SearchManager android.app.SearchManager} for more details.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_SEARCH_LOCAL = 3;
/**
* Use with {@link #setDefaultKeyMode} to specify that unhandled keystrokes
* will start a global search (typically web search, but some platforms may define alternate
* methods for global search)
*
* <p>See {@link android.app.SearchManager android.app.SearchManager} for more details.
*
* @see #setDefaultKeyMode
*/
static public final int DEFAULT_KEYS_SEARCH_GLOBAL = 4;
/**
* Select the default key handling for this activity. This controls what
* will happen to key events that are not otherwise handled. The default
* mode ({@link #DEFAULT_KEYS_DISABLE}) will simply drop them on the
* floor. Other modes allow you to launch the dialer
* ({@link #DEFAULT_KEYS_DIALER}), execute a shortcut in your options
* menu without requiring the menu key be held down
* ({@link #DEFAULT_KEYS_SHORTCUT}), or launch a search ({@link #DEFAULT_KEYS_SEARCH_LOCAL}
* and {@link #DEFAULT_KEYS_SEARCH_GLOBAL}).
*
* <p>Note that the mode selected here does not impact the default
* handling of system keys, such as the "back" and "menu" keys, and your
* activity and its views always get a first chance to receive and handle
* all application keys.
*
* @param mode The desired default key mode constant.
*
* @see #DEFAULT_KEYS_DISABLE
* @see #DEFAULT_KEYS_DIALER
* @see #DEFAULT_KEYS_SHORTCUT
* @see #DEFAULT_KEYS_SEARCH_LOCAL
* @see #DEFAULT_KEYS_SEARCH_GLOBAL
* @see #onKeyDown
*/
public final void setDefaultKeyMode(int mode) {
mDefaultKeyMode = mode;
// Some modes use a SpannableStringBuilder to track & dispatch input events
// This list must remain in sync with the switch in onKeyDown()
switch (mode) {
case DEFAULT_KEYS_DISABLE:
case DEFAULT_KEYS_SHORTCUT:
mDefaultKeySsb = null; // not used in these modes
break;
case DEFAULT_KEYS_DIALER:
case DEFAULT_KEYS_SEARCH_LOCAL:
case DEFAULT_KEYS_SEARCH_GLOBAL:
mDefaultKeySsb = new SpannableStringBuilder();
Selection.setSelection(mDefaultKeySsb,0);
break;
default:
throw new IllegalArgumentException();
}
}
/**
* Called when a key was pressed down and not handled by any of the views
* inside of the activity. So, for example, key presses while the cursor
* is inside a TextView will not trigger the event (unless it is a navigation
* to another object) because TextView handles its own key presses.
*
* <p>If the focused view didn't want this event, this method is called.
*
* <p>The default implementation takes care of {@link KeyEvent#KEYCODE_BACK}
* by calling {@link #onBackPressed()}, though the behavior varies based
* on the application compatibility mode: for
* {@link android.os.Build.VERSION_CODES#ECLAIR} or later applications,
* it will set up the dispatch to call {@link #onKeyUp} where the action
* will be performed; for earlier applications, it will perform the
* action immediately in on-down, as those versions of the platform
* behaved.
*
* <p>Other additional default key handling may be performed
* if configured with {@link #setDefaultKeyMode}.
*
* @return Return <code>true</code> to prevent this event from being propagated
* further, or <code>false</code> to indicate that you have not handled
* this event and it should continue to be propagated.
* @see #onKeyUp
* @see android.view.KeyEvent
*/
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (getApplicationInfo().targetSdkVersion
>= Build.VERSION_CODES.ECLAIR) {
event.startTracking();
} else {
onBackPressed();
}
return true;
}
if (mDefaultKeyMode == DEFAULT_KEYS_DISABLE) {
return false;
} else if (mDefaultKeyMode == DEFAULT_KEYS_SHORTCUT) {
if (getWindow().performPanelShortcut(Window.FEATURE_OPTIONS_PANEL,
keyCode, event, Menu.FLAG_ALWAYS_PERFORM_CLOSE)) {
return true;
}
return false;
} else {
// Common code for DEFAULT_KEYS_DIALER & DEFAULT_KEYS_SEARCH_*
boolean clearSpannable = false;
boolean handled;
if ((event.getRepeatCount() != 0) || event.isSystem()) {
clearSpannable = true;
handled = false;
} else {
handled = TextKeyListener.getInstance().onKeyDown(
null, mDefaultKeySsb, keyCode, event);
if (handled && mDefaultKeySsb.length() > 0) {
// something useable has been typed - dispatch it now.
final String str = mDefaultKeySsb.toString();
clearSpannable = true;
switch (mDefaultKeyMode) {
case DEFAULT_KEYS_DIALER:
Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + str));
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
break;
case DEFAULT_KEYS_SEARCH_LOCAL:
startSearch(str, false, null, false);
break;
case DEFAULT_KEYS_SEARCH_GLOBAL:
startSearch(str, false, null, true);
break;
}
}
}
if (clearSpannable) {
mDefaultKeySsb.clear();
mDefaultKeySsb.clearSpans();
Selection.setSelection(mDefaultKeySsb,0);
}
return handled;
}
}
/**
* Default implementation of {@link KeyEvent.Callback#onKeyLongPress(int, KeyEvent)
* KeyEvent.Callback.onKeyLongPress()}: always returns false (doesn't handle
* the event).
*/
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
return false;
}
/**
* Called when a key was released and not handled by any of the views
* inside of the activity. So, for example, key presses while the cursor
* is inside a TextView will not trigger the event (unless it is a navigation
* to another object) because TextView handles its own key presses.
*
* <p>The default implementation handles KEYCODE_BACK to stop the activity
* and go back.
*
* @return Return <code>true</code> to prevent this event from being propagated
* further, or <code>false</code> to indicate that you have not handled
* this event and it should continue to be propagated.
* @see #onKeyDown
* @see KeyEvent
*/
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (getApplicationInfo().targetSdkVersion
>= Build.VERSION_CODES.ECLAIR) {
if (keyCode == KeyEvent.KEYCODE_BACK && event.isTracking()
&& !event.isCanceled()) {
onBackPressed();
return true;
}
}
return false;
}
/**
* Default implementation of {@link KeyEvent.Callback#onKeyMultiple(int, int, KeyEvent)
* KeyEvent.Callback.onKeyMultiple()}: always returns false (doesn't handle
* the event).
*/
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
return false;
}
/**
* Called when the activity has detected the user's press of the back
* key. The default implementation simply finishes the current activity,
* but you can override this to do whatever you want.
*/
public void onBackPressed() {
if (!mFragments.popBackStackImmediate()) {
finish();
}
}
/**
* Called when a key shortcut event is not handled by any of the views in the Activity.
* Override this method to implement global key shortcuts for the Activity.
* Key shortcuts can also be implemented by setting the
* {@link MenuItem#setShortcut(char, char) shortcut} property of menu items.
*
* @param keyCode The value in event.getKeyCode().
* @param event Description of the key event.
* @return True if the key shortcut was handled.
*/
public boolean onKeyShortcut(int keyCode, KeyEvent event) {
return false;
}
/**
* Called when a touch screen event was not handled by any of the views
* under it. This is most useful to process touch events that happen
* outside of your window bounds, where there is no view to receive it.
*
* @param event The touch screen event being processed.
*
* @return Return true if you have consumed the event, false if you haven't.
* The default implementation always returns false.
*/
public boolean onTouchEvent(MotionEvent event) {
if (mWindow.shouldCloseOnTouch(this, event)) {
finish();
return true;
}
return false;
}
/**
* Called when the trackball was moved and not handled by any of the
* views inside of the activity. So, for example, if the trackball moves
* while focus is on a button, you will receive a call here because
* buttons do not normally do anything with trackball events. The call
* here happens <em>before</em> trackball movements are converted to
* DPAD key events, which then get sent back to the view hierarchy, and
* will be processed at the point for things like focus navigation.
*
* @param event The trackball event being processed.
*
* @return Return true if you have consumed the event, false if you haven't.
* The default implementation always returns false.
*/
public boolean onTrackballEvent(MotionEvent event) {
return false;
}
/**
* Called when a generic motion event was not handled by any of the
* views inside of the activity.
* <p>
* Generic motion events describe joystick movements, mouse hovers, track pad
* touches, scroll wheel movements and other input events. The
* {@link MotionEvent#getSource() source} of the motion event specifies
* the class of input that was received. Implementations of this method
* must examine the bits in the source before processing the event.
* The following code example shows how this is done.
* </p><p>
* Generic motion events with source class
* {@link android.view.InputDevice#SOURCE_CLASS_POINTER}
* are delivered to the view under the pointer. All other generic motion events are
* delivered to the focused view.
* </p><p>
* See {@link View#onGenericMotionEvent(MotionEvent)} for an example of how to
* handle this event.
* </p>
*
* @param event The generic motion event being processed.
*
* @return Return true if you have consumed the event, false if you haven't.
* The default implementation always returns false.
*/
public boolean onGenericMotionEvent(MotionEvent event) {
return false;
}
/**
* Called whenever a key, touch, or trackball event is dispatched to the
* activity. Implement this method if you wish to know that the user has
* interacted with the device in some way while your activity is running.
* This callback and {@link #onUserLeaveHint} are intended to help
* activities manage status bar notifications intelligently; specifically,
* for helping activities determine the proper time to cancel a notfication.
*
* <p>All calls to your activity's {@link #onUserLeaveHint} callback will
* be accompanied by calls to {@link #onUserInteraction}. This
* ensures that your activity will be told of relevant user activity such
* as pulling down the notification pane and touching an item there.
*
* <p>Note that this callback will be invoked for the touch down action
* that begins a touch gesture, but may not be invoked for the touch-moved
* and touch-up actions that follow.
*
* @see #onUserLeaveHint()
*/
public void onUserInteraction() {
}
public void onWindowAttributesChanged(WindowManager.LayoutParams params) {
// Update window manager if: we have a view, that view is
// attached to its parent (which will be a RootView), and
// this activity is not embedded.
if (mParent == null) {
View decor = mDecor;
if (decor != null && decor.getParent() != null) {
getWindowManager().updateViewLayout(decor, params);
}
}
}
public void onContentChanged() {
}
/**
* Called when the current {@link Window} of the activity gains or loses
* focus. This is the best indicator of whether this activity is visible
* to the user. The default implementation clears the key tracking
* state, so should always be called.
*
* <p>Note that this provides information about global focus state, which
* is managed independently of activity lifecycles. As such, while focus
* changes will generally have some relation to lifecycle changes (an
* activity that is stopped will not generally get window focus), you
* should not rely on any particular order between the callbacks here and
* those in the other lifecycle methods such as {@link #onResume}.
*
* <p>As a general rule, however, a resumed activity will have window
* focus... unless it has displayed other dialogs or popups that take
* input focus, in which case the activity itself will not have focus
* when the other windows have it. Likewise, the system may display
* system-level windows (such as the status bar notification panel or
* a system alert) which will temporarily take window input focus without
* pausing the foreground activity.
*
* @param hasFocus Whether the window of this activity has focus.
*
* @see #hasWindowFocus()
* @see #onResume
* @see View#onWindowFocusChanged(boolean)
*/
public void onWindowFocusChanged(boolean hasFocus) {
}
/**
* Called when the main window associated with the activity has been
* attached to the window manager.
* See {@link View#onAttachedToWindow() View.onAttachedToWindow()}
* for more information.
* @see View#onAttachedToWindow
*/
public void onAttachedToWindow() {
}
/**
* Called when the main window associated with the activity has been
* detached from the window manager.
* See {@link View#onDetachedFromWindow() View.onDetachedFromWindow()}
* for more information.
* @see View#onDetachedFromWindow
*/
public void onDetachedFromWindow() {
}
/**
* Returns true if this activity's <em>main</em> window currently has window focus.
* Note that this is not the same as the view itself having focus.
*
* @return True if this activity's main window currently has window focus.
*
* @see #onWindowAttributesChanged(android.view.WindowManager.LayoutParams)
*/
public boolean hasWindowFocus() {
Window w = getWindow();
if (w != null) {
View d = w.getDecorView();
if (d != null) {
return d.hasWindowFocus();
}
}
return false;
}
/**
* Called to process key events. You can override this to intercept all
* key events before they are dispatched to the window. Be sure to call
* this implementation for key events that should be handled normally.
*
* @param event The key event.
*
* @return boolean Return true if this event was consumed.
*/
public boolean dispatchKeyEvent(KeyEvent event) {
onUserInteraction();
Window win = getWindow();
if (win.superDispatchKeyEvent(event)) {
return true;
}
View decor = mDecor;
if (decor == null) decor = win.getDecorView();
return event.dispatch(this, decor != null
? decor.getKeyDispatcherState() : null, this);
}
/**
* Called to process a key shortcut event.
* You can override this to intercept all key shortcut events before they are
* dispatched to the window. Be sure to call this implementation for key shortcut
* events that should be handled normally.
*
* @param event The key shortcut event.
* @return True if this event was consumed.
*/
public boolean dispatchKeyShortcutEvent(KeyEvent event) {
onUserInteraction();
if (getWindow().superDispatchKeyShortcutEvent(event)) {
return true;
}
return onKeyShortcut(event.getKeyCode(), event);
}
/**
* Called to process touch screen events. You can override this to
* intercept all touch screen events before they are dispatched to the
* window. Be sure to call this implementation for touch screen events
* that should be handled normally.
*
* @param ev The touch screen event.
*
* @return boolean Return true if this event was consumed.
*/
public boolean dispatchTouchEvent(MotionEvent ev) {
if (ev.getAction() == MotionEvent.ACTION_DOWN) {
onUserInteraction();
}
if (getWindow().superDispatchTouchEvent(ev)) {
return true;
}
return onTouchEvent(ev);
}
/**
* Called to process trackball events. You can override this to
* intercept all trackball events before they are dispatched to the
* window. Be sure to call this implementation for trackball events
* that should be handled normally.
*
* @param ev The trackball event.
*
* @return boolean Return true if this event was consumed.
*/
public boolean dispatchTrackballEvent(MotionEvent ev) {
onUserInteraction();
if (getWindow().superDispatchTrackballEvent(ev)) {
return true;
}
return onTrackballEvent(ev);
}
/**
* Called to process generic motion events. You can override this to
* intercept all generic motion events before they are dispatched to the
* window. Be sure to call this implementation for generic motion events
* that should be handled normally.
*
* @param ev The generic motion event.
*
* @return boolean Return true if this event was consumed.
*/
public boolean dispatchGenericMotionEvent(MotionEvent ev) {
onUserInteraction();
if (getWindow().superDispatchGenericMotionEvent(ev)) {
return true;
}
return onGenericMotionEvent(ev);
}
public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
event.setClassName(getClass().getName());
event.setPackageName(getPackageName());
LayoutParams params = getWindow().getAttributes();
boolean isFullScreen = (params.width == LayoutParams.MATCH_PARENT) &&
(params.height == LayoutParams.MATCH_PARENT);
event.setFullScreen(isFullScreen);
CharSequence title = getTitle();
if (!TextUtils.isEmpty(title)) {
event.getText().add(title);
}
return true;
}
/**
* Default implementation of
* {@link android.view.Window.Callback#onCreatePanelView}
* for activities. This
* simply returns null so that all panel sub-windows will have the default
* menu behavior.
*/
public View onCreatePanelView(int featureId) {
return null;
}
/**
* Default implementation of
* {@link android.view.Window.Callback#onCreatePanelMenu}
* for activities. This calls through to the new
* {@link #onCreateOptionsMenu} method for the
* {@link android.view.Window#FEATURE_OPTIONS_PANEL} panel,
* so that subclasses of Activity don't need to deal with feature codes.
*/
public boolean onCreatePanelMenu(int featureId, Menu menu) {
if (featureId == Window.FEATURE_OPTIONS_PANEL) {
boolean show = onCreateOptionsMenu(menu);
show |= mFragments.dispatchCreateOptionsMenu(menu, getMenuInflater());
return show;
}
return false;
}
/**
* Default implementation of
* {@link android.view.Window.Callback#onPreparePanel}
* for activities. This
* calls through to the new {@link #onPrepareOptionsMenu} method for the
* {@link android.view.Window#FEATURE_OPTIONS_PANEL}
* panel, so that subclasses of
* Activity don't need to deal with feature codes.
*/
public boolean onPreparePanel(int featureId, View view, Menu menu) {
if (featureId == Window.FEATURE_OPTIONS_PANEL && menu != null) {
boolean goforit = onPrepareOptionsMenu(menu);
goforit |= mFragments.dispatchPrepareOptionsMenu(menu);
return goforit && menu.hasVisibleItems();
}
return true;
}
/**
* {@inheritDoc}
*
* @return The default implementation returns true.
*/
public boolean onMenuOpened(int featureId, Menu menu) {
if (featureId == Window.FEATURE_ACTION_BAR) {
initActionBar();
if (mActionBar != null) {
mActionBar.dispatchMenuVisibilityChanged(true);
} else {
Log.e(TAG, "Tried to open action bar menu with no action bar");
}
}
return true;
}
/**
* Default implementation of
* {@link android.view.Window.Callback#onMenuItemSelected}
* for activities. This calls through to the new
* {@link #onOptionsItemSelected} method for the
* {@link android.view.Window#FEATURE_OPTIONS_PANEL}
* panel, so that subclasses of
* Activity don't need to deal with feature codes.
*/
public boolean onMenuItemSelected(int featureId, MenuItem item) {
switch (featureId) {
case Window.FEATURE_OPTIONS_PANEL:
// Put event logging here so it gets called even if subclass
// doesn't call through to superclass's implmeentation of each
// of these methods below
EventLog.writeEvent(50000, 0, item.getTitleCondensed());
if (onOptionsItemSelected(item)) {
return true;
}
return mFragments.dispatchOptionsItemSelected(item);
case Window.FEATURE_CONTEXT_MENU:
EventLog.writeEvent(50000, 1, item.getTitleCondensed());
if (onContextItemSelected(item)) {
return true;
}
return mFragments.dispatchContextItemSelected(item);
default:
return false;
}
}
/**
* Default implementation of
* {@link android.view.Window.Callback#onPanelClosed(int, Menu)} for
* activities. This calls through to {@link #onOptionsMenuClosed(Menu)}
* method for the {@link android.view.Window#FEATURE_OPTIONS_PANEL} panel,
* so that subclasses of Activity don't need to deal with feature codes.
* For context menus ({@link Window#FEATURE_CONTEXT_MENU}), the
* {@link #onContextMenuClosed(Menu)} will be called.
*/
public void onPanelClosed(int featureId, Menu menu) {
switch (featureId) {
case Window.FEATURE_OPTIONS_PANEL:
mFragments.dispatchOptionsMenuClosed(menu);
onOptionsMenuClosed(menu);
break;
case Window.FEATURE_CONTEXT_MENU:
onContextMenuClosed(menu);
break;
case Window.FEATURE_ACTION_BAR:
initActionBar();
mActionBar.dispatchMenuVisibilityChanged(false);
break;
}
}
/**
* Declare that the options menu has changed, so should be recreated.
* The {@link #onCreateOptionsMenu(Menu)} method will be called the next
* time it needs to be displayed.
*/
public void invalidateOptionsMenu() {
mWindow.invalidatePanelMenu(Window.FEATURE_OPTIONS_PANEL);
}
/**
* Initialize the contents of the Activity's standard options menu. You
* should place your menu items in to <var>menu</var>.
*
* <p>This is only called once, the first time the options menu is
* displayed. To update the menu every time it is displayed, see
* {@link #onPrepareOptionsMenu}.
*
* <p>The default implementation populates the menu with standard system
* menu items. These are placed in the {@link Menu#CATEGORY_SYSTEM} group so that
* they will be correctly ordered with application-defined menu items.
* Deriving classes should always call through to the base implementation.
*
* <p>You can safely hold on to <var>menu</var> (and any items created
* from it), making modifications to it as desired, until the next
* time onCreateOptionsMenu() is called.
*
* <p>When you add items to the menu, you can implement the Activity's
* {@link #onOptionsItemSelected} method to handle them there.
*
* @param menu The options menu in which you place your items.
*
* @return You must return true for the menu to be displayed;
* if you return false it will not be shown.
*
* @see #onPrepareOptionsMenu
* @see #onOptionsItemSelected
*/
public boolean onCreateOptionsMenu(Menu menu) {
if (mParent != null) {
return mParent.onCreateOptionsMenu(menu);
}
return true;
}
/**
* Prepare the Screen's standard options menu to be displayed. This is
* called right before the menu is shown, every time it is shown. You can
* use this method to efficiently enable/disable items or otherwise
* dynamically modify the contents.
*
* <p>The default implementation updates the system menu items based on the
* activity's state. Deriving classes should always call through to the
* base class implementation.
*
* @param menu The options menu as last shown or first initialized by
* onCreateOptionsMenu().
*
* @return You must return true for the menu to be displayed;
* if you return false it will not be shown.
*
* @see #onCreateOptionsMenu
*/
public boolean onPrepareOptionsMenu(Menu menu) {
if (mParent != null) {
return mParent.onPrepareOptionsMenu(menu);
}
return true;
}
/**
* This hook is called whenever an item in your options menu is selected.
* The default implementation simply returns false to have the normal
* processing happen (calling the item's Runnable or sending a message to
* its Handler as appropriate). You can use this method for any items
* for which you would like to do processing without those other
* facilities.
*
* <p>Derived classes should call through to the base class for it to
* perform the default menu handling.
*
* @param item The menu item that was selected.
*
* @return boolean Return false to allow normal menu processing to
* proceed, true to consume it here.
*
* @see #onCreateOptionsMenu
*/
public boolean onOptionsItemSelected(MenuItem item) {
if (mParent != null) {
return mParent.onOptionsItemSelected(item);
}
return false;
}
/**
* This hook is called whenever the options menu is being closed (either by the user canceling
* the menu with the back/menu button, or when an item is selected).
*
* @param menu The options menu as last shown or first initialized by
* onCreateOptionsMenu().
*/
public void onOptionsMenuClosed(Menu menu) {
if (mParent != null) {
mParent.onOptionsMenuClosed(menu);
}
}
/**
* Programmatically opens the options menu. If the options menu is already
* open, this method does nothing.
*/
public void openOptionsMenu() {
mWindow.openPanel(Window.FEATURE_OPTIONS_PANEL, null);
}
/**
* Progammatically closes the options menu. If the options menu is already
* closed, this method does nothing.
*/
public void closeOptionsMenu() {
mWindow.closePanel(Window.FEATURE_OPTIONS_PANEL);
}
/**
* Called when a context menu for the {@code view} is about to be shown.
* Unlike {@link #onCreateOptionsMenu(Menu)}, this will be called every
* time the context menu is about to be shown and should be populated for
* the view (or item inside the view for {@link AdapterView} subclasses,
* this can be found in the {@code menuInfo})).
* <p>
* Use {@link #onContextItemSelected(android.view.MenuItem)} to know when an
* item has been selected.
* <p>
* It is not safe to hold onto the context menu after this method returns.
* {@inheritDoc}
*/
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
}
/**
* Registers a context menu to be shown for the given view (multiple views
* can show the context menu). This method will set the
* {@link OnCreateContextMenuListener} on the view to this activity, so
* {@link #onCreateContextMenu(ContextMenu, View, ContextMenuInfo)} will be
* called when it is time to show the context menu.
*
* @see #unregisterForContextMenu(View)
* @param view The view that should show a context menu.
*/
public void registerForContextMenu(View view) {
view.setOnCreateContextMenuListener(this);
}
/**
* Prevents a context menu to be shown for the given view. This method will remove the
* {@link OnCreateContextMenuListener} on the view.
*
* @see #registerForContextMenu(View)
* @param view The view that should stop showing a context menu.
*/
public void unregisterForContextMenu(View view) {
view.setOnCreateContextMenuListener(null);
}
/**
* Programmatically opens the context menu for a particular {@code view}.
* The {@code view} should have been added via
* {@link #registerForContextMenu(View)}.
*
* @param view The view to show the context menu for.
*/
public void openContextMenu(View view) {
view.showContextMenu();
}
/**
* Programmatically closes the most recently opened context menu, if showing.
*/
public void closeContextMenu() {
mWindow.closePanel(Window.FEATURE_CONTEXT_MENU);
}
/**
* This hook is called whenever an item in a context menu is selected. The
* default implementation simply returns false to have the normal processing
* happen (calling the item's Runnable or sending a message to its Handler
* as appropriate). You can use this method for any items for which you
* would like to do processing without those other facilities.
* <p>
* Use {@link MenuItem#getMenuInfo()} to get extra information set by the
* View that added this menu item.
* <p>
* Derived classes should call through to the base class for it to perform
* the default menu handling.
*
* @param item The context menu item that was selected.
* @return boolean Return false to allow normal context menu processing to
* proceed, true to consume it here.
*/
public boolean onContextItemSelected(MenuItem item) {
if (mParent != null) {
return mParent.onContextItemSelected(item);
}
return false;
}
/**
* This hook is called whenever the context menu is being closed (either by
* the user canceling the menu with the back/menu button, or when an item is
* selected).
*
* @param menu The context menu that is being closed.
*/
public void onContextMenuClosed(Menu menu) {
if (mParent != null) {
mParent.onContextMenuClosed(menu);
}
}
/**
* @deprecated Old no-arguments version of {@link #onCreateDialog(int, Bundle)}.
*/
@Deprecated
protected Dialog onCreateDialog(int id) {
return null;
}
/**
* Callback for creating dialogs that are managed (saved and restored) for you
* by the activity. The default implementation calls through to
* {@link #onCreateDialog(int)} for compatibility.
*
* <em>If you are targeting {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* or later, consider instead using a {@link DialogFragment} instead.</em>
*
* <p>If you use {@link #showDialog(int)}, the activity will call through to
* this method the first time, and hang onto it thereafter. Any dialog
* that is created by this method will automatically be saved and restored
* for you, including whether it is showing.
*
* <p>If you would like the activity to manage saving and restoring dialogs
* for you, you should override this method and handle any ids that are
* passed to {@link #showDialog}.
*
* <p>If you would like an opportunity to prepare your dialog before it is shown,
* override {@link #onPrepareDialog(int, Dialog, Bundle)}.
*
* @param id The id of the dialog.
* @param args The dialog arguments provided to {@link #showDialog(int, Bundle)}.
* @return The dialog. If you return null, the dialog will not be created.
*
* @see #onPrepareDialog(int, Dialog, Bundle)
* @see #showDialog(int, Bundle)
* @see #dismissDialog(int)
* @see #removeDialog(int)
*
* @deprecated Use the new {@link DialogFragment} class with
* {@link FragmentManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
protected Dialog onCreateDialog(int id, Bundle args) {
return onCreateDialog(id);
}
/**
* @deprecated Old no-arguments version of
* {@link #onPrepareDialog(int, Dialog, Bundle)}.
*/
@Deprecated
protected void onPrepareDialog(int id, Dialog dialog) {
dialog.setOwnerActivity(this);
}
/**
* Provides an opportunity to prepare a managed dialog before it is being
* shown. The default implementation calls through to
* {@link #onPrepareDialog(int, Dialog)} for compatibility.
*
* <p>
* Override this if you need to update a managed dialog based on the state
* of the application each time it is shown. For example, a time picker
* dialog might want to be updated with the current time. You should call
* through to the superclass's implementation. The default implementation
* will set this Activity as the owner activity on the Dialog.
*
* @param id The id of the managed dialog.
* @param dialog The dialog.
* @param args The dialog arguments provided to {@link #showDialog(int, Bundle)}.
* @see #onCreateDialog(int, Bundle)
* @see #showDialog(int)
* @see #dismissDialog(int)
* @see #removeDialog(int)
*
* @deprecated Use the new {@link DialogFragment} class with
* {@link FragmentManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
onPrepareDialog(id, dialog);
}
/**
* Simple version of {@link #showDialog(int, Bundle)} that does not
* take any arguments. Simply calls {@link #showDialog(int, Bundle)}
* with null arguments.
*
* @deprecated Use the new {@link DialogFragment} class with
* {@link FragmentManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public final void showDialog(int id) {
showDialog(id, null);
}
/**
* Show a dialog managed by this activity. A call to {@link #onCreateDialog(int, Bundle)}
* will be made with the same id the first time this is called for a given
* id. From thereafter, the dialog will be automatically saved and restored.
*
* <em>If you are targeting {@link android.os.Build.VERSION_CODES#HONEYCOMB}
* or later, consider instead using a {@link DialogFragment} instead.</em>
*
* <p>Each time a dialog is shown, {@link #onPrepareDialog(int, Dialog, Bundle)} will
* be made to provide an opportunity to do any timely preparation.
*
* @param id The id of the managed dialog.
* @param args Arguments to pass through to the dialog. These will be saved
* and restored for you. Note that if the dialog is already created,
* {@link #onCreateDialog(int, Bundle)} will not be called with the new
* arguments but {@link #onPrepareDialog(int, Dialog, Bundle)} will be.
* If you need to rebuild the dialog, call {@link #removeDialog(int)} first.
* @return Returns true if the Dialog was created; false is returned if
* it is not created because {@link #onCreateDialog(int, Bundle)} returns false.
*
* @see Dialog
* @see #onCreateDialog(int, Bundle)
* @see #onPrepareDialog(int, Dialog, Bundle)
* @see #dismissDialog(int)
* @see #removeDialog(int)
*
* @deprecated Use the new {@link DialogFragment} class with
* {@link FragmentManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public final boolean showDialog(int id, Bundle args) {
if (mManagedDialogs == null) {
mManagedDialogs = new SparseArray<ManagedDialog>();
}
ManagedDialog md = mManagedDialogs.get(id);
if (md == null) {
md = new ManagedDialog();
md.mDialog = createDialog(id, null, args);
if (md.mDialog == null) {
return false;
}
mManagedDialogs.put(id, md);
}
md.mArgs = args;
onPrepareDialog(id, md.mDialog, args);
md.mDialog.show();
return true;
}
/**
* Dismiss a dialog that was previously shown via {@link #showDialog(int)}.
*
* @param id The id of the managed dialog.
*
* @throws IllegalArgumentException if the id was not previously shown via
* {@link #showDialog(int)}.
*
* @see #onCreateDialog(int, Bundle)
* @see #onPrepareDialog(int, Dialog, Bundle)
* @see #showDialog(int)
* @see #removeDialog(int)
*
* @deprecated Use the new {@link DialogFragment} class with
* {@link FragmentManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public final void dismissDialog(int id) {
if (mManagedDialogs == null) {
throw missingDialog(id);
}
final ManagedDialog md = mManagedDialogs.get(id);
if (md == null) {
throw missingDialog(id);
}
md.mDialog.dismiss();
}
/**
* Creates an exception to throw if a user passed in a dialog id that is
* unexpected.
*/
private IllegalArgumentException missingDialog(int id) {
return new IllegalArgumentException("no dialog with id " + id + " was ever "
+ "shown via Activity#showDialog");
}
/**
* Removes any internal references to a dialog managed by this Activity.
* If the dialog is showing, it will dismiss it as part of the clean up.
*
* <p>This can be useful if you know that you will never show a dialog again and
* want to avoid the overhead of saving and restoring it in the future.
*
* <p>As of {@link android.os.Build.VERSION_CODES#GINGERBREAD}, this function
* will not throw an exception if you try to remove an ID that does not
* currently have an associated dialog.</p>
*
* @param id The id of the managed dialog.
*
* @see #onCreateDialog(int, Bundle)
* @see #onPrepareDialog(int, Dialog, Bundle)
* @see #showDialog(int)
* @see #dismissDialog(int)
*
* @deprecated Use the new {@link DialogFragment} class with
* {@link FragmentManager} instead; this is also
* available on older platforms through the Android compatibility package.
*/
@Deprecated
public final void removeDialog(int id) {
if (mManagedDialogs != null) {
final ManagedDialog md = mManagedDialogs.get(id);
if (md != null) {
md.mDialog.dismiss();
mManagedDialogs.remove(id);
}
}
}
/**
* This hook is called when the user signals the desire to start a search.
*
* <p>You can use this function as a simple way to launch the search UI, in response to a
* menu item, search button, or other widgets within your activity. Unless overidden,
* calling this function is the same as calling
* {@link #startSearch startSearch(null, false, null, false)}, which launches
* search for the current activity as specified in its manifest, see {@link SearchManager}.
*
* <p>You can override this function to force global search, e.g. in response to a dedicated
* search key, or to block search entirely (by simply returning false).
*
* @return Returns {@code true} if search launched, and {@code false} if activity blocks it.
* The default implementation always returns {@code true}.
*
* @see android.app.SearchManager
*/
public boolean onSearchRequested() {
startSearch(null, false, null, false);
return true;
}
/**
* This hook is called to launch the search UI.
*
* <p>It is typically called from onSearchRequested(), either directly from
* Activity.onSearchRequested() or from an overridden version in any given
* Activity. If your goal is simply to activate search, it is preferred to call
* onSearchRequested(), which may have been overriden elsewhere in your Activity. If your goal
* is to inject specific data such as context data, it is preferred to <i>override</i>
* onSearchRequested(), so that any callers to it will benefit from the override.
*
* @param initialQuery Any non-null non-empty string will be inserted as
* pre-entered text in the search query box.
* @param selectInitialQuery If true, the intial query will be preselected, which means that
* any further typing will replace it. This is useful for cases where an entire pre-formed
* query is being inserted. If false, the selection point will be placed at the end of the
* inserted query. This is useful when the inserted query is text that the user entered,
* and the user would expect to be able to keep typing. <i>This parameter is only meaningful
* if initialQuery is a non-empty string.</i>
* @param appSearchData An application can insert application-specific
* context here, in order to improve quality or specificity of its own
* searches. This data will be returned with SEARCH intent(s). Null if
* no extra data is required.
* @param globalSearch If false, this will only launch the search that has been specifically
* defined by the application (which is usually defined as a local search). If no default
* search is defined in the current application or activity, global search will be launched.
* If true, this will always launch a platform-global (e.g. web-based) search instead.
*
* @see android.app.SearchManager
* @see #onSearchRequested
*/
public void startSearch(String initialQuery, boolean selectInitialQuery,
Bundle appSearchData, boolean globalSearch) {
ensureSearchManager();
mSearchManager.startSearch(initialQuery, selectInitialQuery, getComponentName(),
appSearchData, globalSearch);
}
/**
* Similar to {@link #startSearch}, but actually fires off the search query after invoking
* the search dialog. Made available for testing purposes.
*
* @param query The query to trigger. If empty, the request will be ignored.
* @param appSearchData An application can insert application-specific
* context here, in order to improve quality or specificity of its own
* searches. This data will be returned with SEARCH intent(s). Null if
* no extra data is required.
*/
public void triggerSearch(String query, Bundle appSearchData) {
ensureSearchManager();
mSearchManager.triggerSearch(query, getComponentName(), appSearchData);
}
/**
* Request that key events come to this activity. Use this if your
* activity has no views with focus, but the activity still wants
* a chance to process key events.
*
* @see android.view.Window#takeKeyEvents
*/
public void takeKeyEvents(boolean get) {
getWindow().takeKeyEvents(get);
}
/**
* Enable extended window features. This is a convenience for calling
* {@link android.view.Window#requestFeature getWindow().requestFeature()}.
*
* @param featureId The desired feature as defined in
* {@link android.view.Window}.
* @return Returns true if the requested feature is supported and now
* enabled.
*
* @see android.view.Window#requestFeature
*/
public final boolean requestWindowFeature(int featureId) {
return getWindow().requestFeature(featureId);
}
/**
* Convenience for calling
* {@link android.view.Window#setFeatureDrawableResource}.
*/
public final void setFeatureDrawableResource(int featureId, int resId) {
getWindow().setFeatureDrawableResource(featureId, resId);
}
/**
* Convenience for calling
* {@link android.view.Window#setFeatureDrawableUri}.
*/
public final void setFeatureDrawableUri(int featureId, Uri uri) {
getWindow().setFeatureDrawableUri(featureId, uri);
}
/**
* Convenience for calling
* {@link android.view.Window#setFeatureDrawable(int, Drawable)}.
*/
public final void setFeatureDrawable(int featureId, Drawable drawable) {
getWindow().setFeatureDrawable(featureId, drawable);
}
/**
* Convenience for calling
* {@link android.view.Window#setFeatureDrawableAlpha}.
*/
public final void setFeatureDrawableAlpha(int featureId, int alpha) {
getWindow().setFeatureDrawableAlpha(featureId, alpha);
}
/**
* Convenience for calling
* {@link android.view.Window#getLayoutInflater}.
*/
public LayoutInflater getLayoutInflater() {
return getWindow().getLayoutInflater();
}
/**
* Returns a {@link MenuInflater} with this context.
*/
public MenuInflater getMenuInflater() {
// Make sure that action views can get an appropriate theme.
if (mMenuInflater == null) {
initActionBar();
if (mActionBar != null) {
mMenuInflater = new MenuInflater(mActionBar.getThemedContext());
} else {
mMenuInflater = new MenuInflater(this);
}
}
return mMenuInflater;
}
@Override
protected void onApplyThemeResource(Resources.Theme theme, int resid,
boolean first) {
if (mParent == null) {
super.onApplyThemeResource(theme, resid, first);
} else {
try {
theme.setTo(mParent.getTheme());
} catch (Exception e) {
// Empty
}
theme.applyStyle(resid, false);
}
}
/**
* Launch an activity for which you would like a result when it finished.
* When this activity exits, your
* onActivityResult() method will be called with the given requestCode.
* Using a negative requestCode is the same as calling
* {@link #startActivity} (the activity is not launched as a sub-activity).
*
* <p>Note that this method should only be used with Intent protocols
* that are defined to return a result. In other protocols (such as
* {@link Intent#ACTION_MAIN} or {@link Intent#ACTION_VIEW}), you may
* not get the result when you expect. For example, if the activity you
* are launching uses the singleTask launch mode, it will not run in your
* task and thus you will immediately receive a cancel result.
*
* <p>As a special case, if you call startActivityForResult() with a requestCode
* >= 0 during the initial onCreate(Bundle savedInstanceState)/onResume() of your
* activity, then your window will not be displayed until a result is
* returned back from the started activity. This is to avoid visible
* flickering when redirecting to another activity.
*
* <p>This method throws {@link android.content.ActivityNotFoundException}
* if there was no Activity found to run the given Intent.
*
* @param intent The intent to start.
* @param requestCode If >= 0, this code will be returned in
* onActivityResult() when the activity exits.
*
* @throws android.content.ActivityNotFoundException
*
* @see #startActivity
*/
public void startActivityForResult(Intent intent, int requestCode) {
if (mParent == null) {
Instrumentation.ActivityResult ar =
mInstrumentation.execStartActivity(
this, mMainThread.getApplicationThread(), mToken, this,
intent, requestCode);
if (ar != null) {
mMainThread.sendActivityResult(
mToken, mEmbeddedID, requestCode, ar.getResultCode(),
ar.getResultData());
}
if (requestCode >= 0) {
// If this start is requesting a result, we can avoid making
// the activity visible until the result is received. Setting
// this code during onCreate(Bundle savedInstanceState) or onResume() will keep the
// activity hidden during this time, to avoid flickering.
// This can only be done when a result is requested because
// that guarantees we will get information back when the
// activity is finished, no matter what happens to it.
mStartedActivity = true;
}
} else {
mParent.startActivityFromChild(this, intent, requestCode);
}
}
/**
* Like {@link #startActivityForResult(Intent, int)}, but allowing you
* to use a IntentSender to describe the activity to be started. If
* the IntentSender is for an activity, that activity will be started
* as if you had called the regular {@link #startActivityForResult(Intent, int)}
* here; otherwise, its associated action will be executed (such as
* sending a broadcast) as if you had called
* {@link IntentSender#sendIntent IntentSender.sendIntent} on it.
*
* @param intent The IntentSender to launch.
* @param requestCode If >= 0, this code will be returned in
* onActivityResult() when the activity exits.
* @param fillInIntent If non-null, this will be provided as the
* intent parameter to {@link IntentSender#sendIntent}.
* @param flagsMask Intent flags in the original IntentSender that you
* would like to change.
* @param flagsValues Desired values for any bits set in
* <var>flagsMask</var>
* @param extraFlags Always set to 0.
*/
public void startIntentSenderForResult(IntentSender intent, int requestCode,
Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags)
throws IntentSender.SendIntentException {
if (mParent == null) {
startIntentSenderForResultInner(intent, requestCode, fillInIntent,
flagsMask, flagsValues, this);
} else {
mParent.startIntentSenderFromChild(this, intent, requestCode,
fillInIntent, flagsMask, flagsValues, extraFlags);
}
}
private void startIntentSenderForResultInner(IntentSender intent, int requestCode,
Intent fillInIntent, int flagsMask, int flagsValues, Activity activity)
throws IntentSender.SendIntentException {
try {
String resolvedType = null;
if (fillInIntent != null) {
fillInIntent.setAllowFds(false);
resolvedType = fillInIntent.resolveTypeIfNeeded(getContentResolver());
}
int result = ActivityManagerNative.getDefault()
.startActivityIntentSender(mMainThread.getApplicationThread(), intent,
fillInIntent, resolvedType, mToken, activity.mEmbeddedID,
requestCode, flagsMask, flagsValues);
if (result == IActivityManager.START_CANCELED) {
throw new IntentSender.SendIntentException();
}
Instrumentation.checkStartActivityResult(result, null);
} catch (RemoteException e) {
}
if (requestCode >= 0) {
// If this start is requesting a result, we can avoid making
// the activity visible until the result is received. Setting
// this code during onCreate(Bundle savedInstanceState) or onResume() will keep the
// activity hidden during this time, to avoid flickering.
// This can only be done when a result is requested because
// that guarantees we will get information back when the
// activity is finished, no matter what happens to it.
mStartedActivity = true;
}
}
/**
* Launch a new activity. You will not receive any information about when
* the activity exits. This implementation overrides the base version,
* providing information about
* the activity performing the launch. Because of this additional
* information, the {@link Intent#FLAG_ACTIVITY_NEW_TASK} launch flag is not
* required; if not specified, the new activity will be added to the
* task of the caller.
*
* <p>This method throws {@link android.content.ActivityNotFoundException}
* if there was no Activity found to run the given Intent.
*
* @param intent The intent to start.
*
* @throws android.content.ActivityNotFoundException
*
* @see #startActivityForResult
*/
@Override
public void startActivity(Intent intent) {
startActivityForResult(intent, -1);
}
/**
* Launch a new activity. You will not receive any information about when
* the activity exits. This implementation overrides the base version,
* providing information about
* the activity performing the launch. Because of this additional
* information, the {@link Intent#FLAG_ACTIVITY_NEW_TASK} launch flag is not
* required; if not specified, the new activity will be added to the
* task of the caller.
*
* <p>This method throws {@link android.content.ActivityNotFoundException}
* if there was no Activity found to run the given Intent.
*
* @param intents The intents to start.
*
* @throws android.content.ActivityNotFoundException
*
* @see #startActivityForResult
*/
@Override
public void startActivities(Intent[] intents) {
mInstrumentation.execStartActivities(this, mMainThread.getApplicationThread(),
mToken, this, intents);
}
/**
* Like {@link #startActivity(Intent)}, but taking a IntentSender
* to start; see
* {@link #startIntentSenderForResult(IntentSender, int, Intent, int, int, int)}
* for more information.
*
* @param intent The IntentSender to launch.
* @param fillInIntent If non-null, this will be provided as the
* intent parameter to {@link IntentSender#sendIntent}.
* @param flagsMask Intent flags in the original IntentSender that you
* would like to change.
* @param flagsValues Desired values for any bits set in
* <var>flagsMask</var>
* @param extraFlags Always set to 0.
*/
public void startIntentSender(IntentSender intent,
Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags)
throws IntentSender.SendIntentException {
startIntentSenderForResult(intent, -1, fillInIntent, flagsMask,
flagsValues, extraFlags);
}
/**
* A special variation to launch an activity only if a new activity
* instance is needed to handle the given Intent. In other words, this is
* just like {@link #startActivityForResult(Intent, int)} except: if you are
* using the {@link Intent#FLAG_ACTIVITY_SINGLE_TOP} flag, or
* singleTask or singleTop
* {@link android.R.styleable#AndroidManifestActivity_launchMode launchMode},
* and the activity
* that handles <var>intent</var> is the same as your currently running
* activity, then a new instance is not needed. In this case, instead of
* the normal behavior of calling {@link #onNewIntent} this function will
* return and you can handle the Intent yourself.
*
* <p>This function can only be called from a top-level activity; if it is
* called from a child activity, a runtime exception will be thrown.
*
* @param intent The intent to start.
* @param requestCode If >= 0, this code will be returned in
* onActivityResult() when the activity exits, as described in
* {@link #startActivityForResult}.
*
* @return If a new activity was launched then true is returned; otherwise
* false is returned and you must handle the Intent yourself.
*
* @see #startActivity
* @see #startActivityForResult
*/
public boolean startActivityIfNeeded(Intent intent, int requestCode) {
if (mParent == null) {
int result = IActivityManager.START_RETURN_INTENT_TO_CALLER;
try {
intent.setAllowFds(false);
result = ActivityManagerNative.getDefault()
.startActivity(mMainThread.getApplicationThread(),
intent, intent.resolveTypeIfNeeded(
getContentResolver()),
null, 0,
mToken, mEmbeddedID, requestCode, true, false,
null, null, false);
} catch (RemoteException e) {
// Empty
}
Instrumentation.checkStartActivityResult(result, intent);
if (requestCode >= 0) {
// If this start is requesting a result, we can avoid making
// the activity visible until the result is received. Setting
// this code during onCreate(Bundle savedInstanceState) or onResume() will keep the
// activity hidden during this time, to avoid flickering.
// This can only be done when a result is requested because
// that guarantees we will get information back when the
// activity is finished, no matter what happens to it.
mStartedActivity = true;
}
return result != IActivityManager.START_RETURN_INTENT_TO_CALLER;
}
throw new UnsupportedOperationException(
"startActivityIfNeeded can only be called from a top-level activity");
}
/**
* Special version of starting an activity, for use when you are replacing
* other activity components. You can use this to hand the Intent off
* to the next Activity that can handle it. You typically call this in
* {@link #onCreate} with the Intent returned by {@link #getIntent}.
*
* @param intent The intent to dispatch to the next activity. For
* correct behavior, this must be the same as the Intent that started
* your own activity; the only changes you can make are to the extras
* inside of it.
*
* @return Returns a boolean indicating whether there was another Activity
* to start: true if there was a next activity to start, false if there
* wasn't. In general, if true is returned you will then want to call
* finish() on yourself.
*/
public boolean startNextMatchingActivity(Intent intent) {
if (mParent == null) {
try {
intent.setAllowFds(false);
return ActivityManagerNative.getDefault()
.startNextMatchingActivity(mToken, intent);
} catch (RemoteException e) {
// Empty
}
return false;
}
throw new UnsupportedOperationException(
"startNextMatchingActivity can only be called from a top-level activity");
}
/**
* This is called when a child activity of this one calls its
* {@link #startActivity} or {@link #startActivityForResult} method.
*
* <p>This method throws {@link android.content.ActivityNotFoundException}
* if there was no Activity found to run the given Intent.
*
* @param child The activity making the call.
* @param intent The intent to start.
* @param requestCode Reply request code. < 0 if reply is not requested.
*
* @throws android.content.ActivityNotFoundException
*
* @see #startActivity
* @see #startActivityForResult
*/
public void startActivityFromChild(Activity child, Intent intent,
int requestCode) {
Instrumentation.ActivityResult ar =
mInstrumentation.execStartActivity(
this, mMainThread.getApplicationThread(), mToken, child,
intent, requestCode);
if (ar != null) {
mMainThread.sendActivityResult(
mToken, child.mEmbeddedID, requestCode,
ar.getResultCode(), ar.getResultData());
}
}
/**
* This is called when a Fragment in this activity calls its
* {@link Fragment#startActivity} or {@link Fragment#startActivityForResult}
* method.
*
* <p>This method throws {@link android.content.ActivityNotFoundException}
* if there was no Activity found to run the given Intent.
*
* @param fragment The fragment making the call.
* @param intent The intent to start.
* @param requestCode Reply request code. < 0 if reply is not requested.
*
* @throws android.content.ActivityNotFoundException
*
* @see Fragment#startActivity
* @see Fragment#startActivityForResult
*/
public void startActivityFromFragment(Fragment fragment, Intent intent,
int requestCode) {
Instrumentation.ActivityResult ar =
mInstrumentation.execStartActivity(
this, mMainThread.getApplicationThread(), mToken, fragment,
intent, requestCode);
if (ar != null) {
mMainThread.sendActivityResult(
mToken, fragment.mWho, requestCode,
ar.getResultCode(), ar.getResultData());
}
}
/**
* Like {@link #startActivityFromChild(Activity, Intent, int)}, but
* taking a IntentSender; see
* {@link #startIntentSenderForResult(IntentSender, int, Intent, int, int, int)}
* for more information.
*/
public void startIntentSenderFromChild(Activity child, IntentSender intent,
int requestCode, Intent fillInIntent, int flagsMask, int flagsValues,
int extraFlags)
throws IntentSender.SendIntentException {
startIntentSenderForResultInner(intent, requestCode, fillInIntent,
flagsMask, flagsValues, child);
}
/**
* Call immediately after one of the flavors of {@link #startActivity(Intent)}
* or {@link #finish} to specify an explicit transition animation to
* perform next.
* @param enterAnim A resource ID of the animation resource to use for
* the incoming activity. Use 0 for no animation.
* @param exitAnim A resource ID of the animation resource to use for
* the outgoing activity. Use 0 for no animation.
*/
public void overridePendingTransition(int enterAnim, int exitAnim) {
try {
ActivityManagerNative.getDefault().overridePendingTransition(
mToken, getPackageName(), enterAnim, exitAnim);
} catch (RemoteException e) {
}
}
/**
* Call this to set the result that your activity will return to its
* caller.
*
* @param resultCode The result code to propagate back to the originating
* activity, often RESULT_CANCELED or RESULT_OK
*
* @see #RESULT_CANCELED
* @see #RESULT_OK
* @see #RESULT_FIRST_USER
* @see #setResult(int, Intent)
*/
public final void setResult(int resultCode) {
synchronized (this) {
mResultCode = resultCode;
mResultData = null;
}
}
/**
* Call this to set the result that your activity will return to its
* caller.
*
* @param resultCode The result code to propagate back to the originating
* activity, often RESULT_CANCELED or RESULT_OK
* @param data The data to propagate back to the originating activity.
*
* @see #RESULT_CANCELED
* @see #RESULT_OK
* @see #RESULT_FIRST_USER
* @see #setResult(int)
*/
public final void setResult(int resultCode, Intent data) {
synchronized (this) {
mResultCode = resultCode;
mResultData = data;
}
}
/**
* Return the name of the package that invoked this activity. This is who
* the data in {@link #setResult setResult()} will be sent to. You can
* use this information to validate that the recipient is allowed to
* receive the data.
*
* <p>Note: if the calling activity is not expecting a result (that is it
* did not use the {@link #startActivityForResult}
* form that includes a request code), then the calling package will be
* null.
*
* @return The package of the activity that will receive your
* reply, or null if none.
*/
public String getCallingPackage() {
try {
return ActivityManagerNative.getDefault().getCallingPackage(mToken);
} catch (RemoteException e) {
return null;
}
}
/**
* Return the name of the activity that invoked this activity. This is
* who the data in {@link #setResult setResult()} will be sent to. You
* can use this information to validate that the recipient is allowed to
* receive the data.
*
* <p>Note: if the calling activity is not expecting a result (that is it
* did not use the {@link #startActivityForResult}
* form that includes a request code), then the calling package will be
* null.
*
* @return String The full name of the activity that will receive your
* reply, or null if none.
*/
public ComponentName getCallingActivity() {
try {
return ActivityManagerNative.getDefault().getCallingActivity(mToken);
} catch (RemoteException e) {
return null;
}
}
/**
* Control whether this activity's main window is visible. This is intended
* only for the special case of an activity that is not going to show a
* UI itself, but can't just finish prior to onResume() because it needs
* to wait for a service binding or such. Setting this to false allows
* you to prevent your UI from being shown during that time.
*
* <p>The default value for this is taken from the
* {@link android.R.attr#windowNoDisplay} attribute of the activity's theme.
*/
public void setVisible(boolean visible) {
if (mVisibleFromClient != visible) {
mVisibleFromClient = visible;
if (mVisibleFromServer) {
if (visible) makeVisible();
else mDecor.setVisibility(View.INVISIBLE);
}
}
}
void makeVisible() {
if (!mWindowAdded) {
ViewManager wm = getWindowManager();
wm.addView(mDecor, getWindow().getAttributes());
mWindowAdded = true;
}
mDecor.setVisibility(View.VISIBLE);
}
/**
* Check to see whether this activity is in the process of finishing,
* either because you called {@link #finish} on it or someone else
* has requested that it finished. This is often used in
* {@link #onPause} to determine whether the activity is simply pausing or
* completely finishing.
*
* @return If the activity is finishing, returns true; else returns false.
*
* @see #finish
*/
public boolean isFinishing() {
return mFinished;
}
/**
* Check to see whether this activity is in the process of being destroyed in order to be
* recreated with a new configuration. This is often used in
* {@link #onStop} to determine whether the state needs to be cleaned up or will be passed
* on to the next instance of the activity via {@link #onRetainNonConfigurationInstance()}.
*
* @return If the activity is being torn down in order to be recreated with a new configuration,
* returns true; else returns false.
*/
public boolean isChangingConfigurations() {
return mChangingConfigurations;
}
/**
* Cause this Activity to be recreated with a new instance. This results
* in essentially the same flow as when the Activity is created due to
* a configuration change -- the current instance will go through its
* lifecycle to {@link #onDestroy} and a new instance then created after it.
*/
public void recreate() {
if (mParent != null) {
throw new IllegalStateException("Can only be called on top-level activity");
}
if (Looper.myLooper() != mMainThread.getLooper()) {
throw new IllegalStateException("Must be called from main thread");
}
mMainThread.requestRelaunchActivity(mToken, null, null, 0, false, null, false);
}
/**
* Call this when your activity is done and should be closed. The
* ActivityResult is propagated back to whoever launched you via
* onActivityResult().
*/
public void finish() {
if (mParent == null) {
int resultCode;
Intent resultData;
synchronized (this) {
resultCode = mResultCode;
resultData = mResultData;
}
if (false) Log.v(TAG, "Finishing self: token=" + mToken);
try {
if (resultData != null) {
resultData.setAllowFds(false);
}
if (ActivityManagerNative.getDefault()
.finishActivity(mToken, resultCode, resultData)) {
mFinished = true;
}
} catch (RemoteException e) {
// Empty
}
} else {
mParent.finishFromChild(this);
}
}
/**
* This is called when a child activity of this one calls its
* {@link #finish} method. The default implementation simply calls
* finish() on this activity (the parent), finishing the entire group.
*
* @param child The activity making the call.
*
* @see #finish
*/
public void finishFromChild(Activity child) {
finish();
}
/**
* Force finish another activity that you had previously started with
* {@link #startActivityForResult}.
*
* @param requestCode The request code of the activity that you had
* given to startActivityForResult(). If there are multiple
* activities started with this request code, they
* will all be finished.
*/
public void finishActivity(int requestCode) {
if (mParent == null) {
try {
ActivityManagerNative.getDefault()
.finishSubActivity(mToken, mEmbeddedID, requestCode);
} catch (RemoteException e) {
// Empty
}
} else {
mParent.finishActivityFromChild(this, requestCode);
}
}
/**
* This is called when a child activity of this one calls its
* finishActivity().
*
* @param child The activity making the call.
* @param requestCode Request code that had been used to start the
* activity.
*/
public void finishActivityFromChild(Activity child, int requestCode) {
try {
ActivityManagerNative.getDefault()
.finishSubActivity(mToken, child.mEmbeddedID, requestCode);
} catch (RemoteException e) {
// Empty
}
}
/**
* Called when an activity you launched exits, giving you the requestCode
* you started it with, the resultCode it returned, and any additional
* data from it. The <var>resultCode</var> will be
* {@link #RESULT_CANCELED} if the activity explicitly returned that,
* didn't return any result, or crashed during its operation.
*
* <p>You will receive this call immediately before onResume() when your
* activity is re-starting.
*
* @param requestCode The integer request code originally supplied to
* startActivityForResult(), allowing you to identify who this
* result came from.
* @param resultCode The integer result code returned by the child activity
* through its setResult().
* @param data An Intent, which can return result data to the caller
* (various data can be attached to Intent "extras").
*
* @see #startActivityForResult
* @see #createPendingResult
* @see #setResult(int)
*/
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
}
/**
* Create a new PendingIntent object which you can hand to others
* for them to use to send result data back to your
* {@link #onActivityResult} callback. The created object will be either
* one-shot (becoming invalid after a result is sent back) or multiple
* (allowing any number of results to be sent through it).
*
* @param requestCode Private request code for the sender that will be
* associated with the result data when it is returned. The sender can not
* modify this value, allowing you to identify incoming results.
* @param data Default data to supply in the result, which may be modified
* by the sender.
* @param flags May be {@link PendingIntent#FLAG_ONE_SHOT PendingIntent.FLAG_ONE_SHOT},
* {@link PendingIntent#FLAG_NO_CREATE PendingIntent.FLAG_NO_CREATE},
* {@link PendingIntent#FLAG_CANCEL_CURRENT PendingIntent.FLAG_CANCEL_CURRENT},
* {@link PendingIntent#FLAG_UPDATE_CURRENT PendingIntent.FLAG_UPDATE_CURRENT},
* or any of the flags as supported by
* {@link Intent#fillIn Intent.fillIn()} to control which unspecified parts
* of the intent that can be supplied when the actual send happens.
*
* @return Returns an existing or new PendingIntent matching the given
* parameters. May return null only if
* {@link PendingIntent#FLAG_NO_CREATE PendingIntent.FLAG_NO_CREATE} has been
* supplied.
*
* @see PendingIntent
*/
public PendingIntent createPendingResult(int requestCode, Intent data,
int flags) {
String packageName = getPackageName();
try {
data.setAllowFds(false);
IIntentSender target =
ActivityManagerNative.getDefault().getIntentSender(
IActivityManager.INTENT_SENDER_ACTIVITY_RESULT, packageName,
mParent == null ? mToken : mParent.mToken,
mEmbeddedID, requestCode, new Intent[] { data }, null, flags);
return target != null ? new PendingIntent(target) : null;
} catch (RemoteException e) {
// Empty
}
return null;
}
/**
* Change the desired orientation of this activity. If the activity
* is currently in the foreground or otherwise impacting the screen
* orientation, the screen will immediately be changed (possibly causing
* the activity to be restarted). Otherwise, this will be used the next
* time the activity is visible.
*
* @param requestedOrientation An orientation constant as used in
* {@link ActivityInfo#screenOrientation ActivityInfo.screenOrientation}.
*/
public void setRequestedOrientation(int requestedOrientation) {
if (mParent == null) {
try {
ActivityManagerNative.getDefault().setRequestedOrientation(
mToken, requestedOrientation);
} catch (RemoteException e) {
// Empty
}
} else {
mParent.setRequestedOrientation(requestedOrientation);
}
}
/**
* Return the current requested orientation of the activity. This will
* either be the orientation requested in its component's manifest, or
* the last requested orientation given to
* {@link #setRequestedOrientation(int)}.
*
* @return Returns an orientation constant as used in
* {@link ActivityInfo#screenOrientation ActivityInfo.screenOrientation}.
*/
public int getRequestedOrientation() {
if (mParent == null) {
try {
return ActivityManagerNative.getDefault()
.getRequestedOrientation(mToken);
} catch (RemoteException e) {
// Empty
}
} else {
return mParent.getRequestedOrientation();
}
return ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
}
/**
* Return the identifier of the task this activity is in. This identifier
* will remain the same for the lifetime of the activity.
*
* @return Task identifier, an opaque integer.
*/
public int getTaskId() {
try {
return ActivityManagerNative.getDefault()
.getTaskForActivity(mToken, false);
} catch (RemoteException e) {
return -1;
}
}
/**
* Return whether this activity is the root of a task. The root is the
* first activity in a task.
*
* @return True if this is the root activity, else false.
*/
public boolean isTaskRoot() {
try {
return ActivityManagerNative.getDefault()
.getTaskForActivity(mToken, true) >= 0;
} catch (RemoteException e) {
return false;
}
}
/**
* Move the task containing this activity to the back of the activity
* stack. The activity's order within the task is unchanged.
*
* @param nonRoot If false then this only works if the activity is the root
* of a task; if true it will work for any activity in
* a task.
*
* @return If the task was moved (or it was already at the
* back) true is returned, else false.
*/
public boolean moveTaskToBack(boolean nonRoot) {
try {
return ActivityManagerNative.getDefault().moveActivityTaskToBack(
mToken, nonRoot);
} catch (RemoteException e) {
// Empty
}
return false;
}
/**
* Returns class name for this activity with the package prefix removed.
* This is the default name used to read and write settings.
*
* @return The local class name.
*/
public String getLocalClassName() {
final String pkg = getPackageName();
final String cls = mComponent.getClassName();
int packageLen = pkg.length();
if (!cls.startsWith(pkg) || cls.length() <= packageLen
|| cls.charAt(packageLen) != '.') {
return cls;
}
return cls.substring(packageLen+1);
}
/**
* Returns complete component name of this activity.
*
* @return Returns the complete component name for this activity
*/
public ComponentName getComponentName()
{
return mComponent;
}
/**
* Retrieve a {@link SharedPreferences} object for accessing preferences
* that are private to this activity. This simply calls the underlying
* {@link #getSharedPreferences(String, int)} method by passing in this activity's
* class name as the preferences name.
*
* @param mode Operating mode. Use {@link #MODE_PRIVATE} for the default
* operation, {@link #MODE_WORLD_READABLE} and
* {@link #MODE_WORLD_WRITEABLE} to control permissions.
*
* @return Returns the single SharedPreferences instance that can be used
* to retrieve and modify the preference values.
*/
public SharedPreferences getPreferences(int mode) {
return getSharedPreferences(getLocalClassName(), mode);
}
private void ensureSearchManager() {
if (mSearchManager != null) {
return;
}
mSearchManager = new SearchManager(this, null);
}
@Override
public Object getSystemService(String name) {
if (getBaseContext() == null) {
throw new IllegalStateException(
"System services not available to Activities before onCreate()");
}
if (WINDOW_SERVICE.equals(name)) {
return mWindowManager;
} else if (SEARCH_SERVICE.equals(name)) {
ensureSearchManager();
return mSearchManager;
}
return super.getSystemService(name);
}
/**
* Change the title associated with this activity. If this is a
* top-level activity, the title for its window will change. If it
* is an embedded activity, the parent can do whatever it wants
* with it.
*/
public void setTitle(CharSequence title) {
mTitle = title;
onTitleChanged(title, mTitleColor);
if (mParent != null) {
mParent.onChildTitleChanged(this, title);
}
}
/**
* Change the title associated with this activity. If this is a
* top-level activity, the title for its window will change. If it
* is an embedded activity, the parent can do whatever it wants
* with it.
*/
public void setTitle(int titleId) {
setTitle(getText(titleId));
}
public void setTitleColor(int textColor) {
mTitleColor = textColor;
onTitleChanged(mTitle, textColor);
}
public final CharSequence getTitle() {
return mTitle;
}
public final int getTitleColor() {
return mTitleColor;
}
protected void onTitleChanged(CharSequence title, int color) {
if (mTitleReady) {
final Window win = getWindow();
if (win != null) {
win.setTitle(title);
if (color != 0) {
win.setTitleColor(color);
}
}
}
}
protected void onChildTitleChanged(Activity childActivity, CharSequence title) {
}
/**
* Sets the visibility of the progress bar in the title.
* <p>
* In order for the progress bar to be shown, the feature must be requested
* via {@link #requestWindowFeature(int)}.
*
* @param visible Whether to show the progress bars in the title.
*/
public final void setProgressBarVisibility(boolean visible) {
getWindow().setFeatureInt(Window.FEATURE_PROGRESS, visible ? Window.PROGRESS_VISIBILITY_ON :
Window.PROGRESS_VISIBILITY_OFF);
}
/**
* Sets the visibility of the indeterminate progress bar in the title.
* <p>
* In order for the progress bar to be shown, the feature must be requested
* via {@link #requestWindowFeature(int)}.
*
* @param visible Whether to show the progress bars in the title.
*/
public final void setProgressBarIndeterminateVisibility(boolean visible) {
getWindow().setFeatureInt(Window.FEATURE_INDETERMINATE_PROGRESS,
visible ? Window.PROGRESS_VISIBILITY_ON : Window.PROGRESS_VISIBILITY_OFF);
}
/**
* Sets whether the horizontal progress bar in the title should be indeterminate (the circular
* is always indeterminate).
* <p>
* In order for the progress bar to be shown, the feature must be requested
* via {@link #requestWindowFeature(int)}.
*
* @param indeterminate Whether the horizontal progress bar should be indeterminate.
*/
public final void setProgressBarIndeterminate(boolean indeterminate) {
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
indeterminate ? Window.PROGRESS_INDETERMINATE_ON : Window.PROGRESS_INDETERMINATE_OFF);
}
/**
* Sets the progress for the progress bars in the title.
* <p>
* In order for the progress bar to be shown, the feature must be requested
* via {@link #requestWindowFeature(int)}.
*
* @param progress The progress for the progress bar. Valid ranges are from
* 0 to 10000 (both inclusive). If 10000 is given, the progress
* bar will be completely filled and will fade out.
*/
public final void setProgress(int progress) {
getWindow().setFeatureInt(Window.FEATURE_PROGRESS, progress + Window.PROGRESS_START);
}
/**
* Sets the secondary progress for the progress bar in the title. This
* progress is drawn between the primary progress (set via
* {@link #setProgress(int)} and the background. It can be ideal for media
* scenarios such as showing the buffering progress while the default
* progress shows the play progress.
* <p>
* In order for the progress bar to be shown, the feature must be requested
* via {@link #requestWindowFeature(int)}.
*
* @param secondaryProgress The secondary progress for the progress bar. Valid ranges are from
* 0 to 10000 (both inclusive).
*/
public final void setSecondaryProgress(int secondaryProgress) {
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
secondaryProgress + Window.PROGRESS_SECONDARY_START);
}
/**
* Suggests an audio stream whose volume should be changed by the hardware
* volume controls.
* <p>
* The suggested audio stream will be tied to the window of this Activity.
* If the Activity is switched, the stream set here is no longer the
* suggested stream. The client does not need to save and restore the old
* suggested stream value in onPause and onResume.
*
* @param streamType The type of the audio stream whose volume should be
* changed by the hardware volume controls. It is not guaranteed that
* the hardware volume controls will always change this stream's
* volume (for example, if a call is in progress, its stream's volume
* may be changed instead). To reset back to the default, use
* {@link AudioManager#USE_DEFAULT_STREAM_TYPE}.
*/
public final void setVolumeControlStream(int streamType) {
getWindow().setVolumeControlStream(streamType);
}
/**
* Gets the suggested audio stream whose volume should be changed by the
* harwdare volume controls.
*
* @return The suggested audio stream type whose volume should be changed by
* the hardware volume controls.
* @see #setVolumeControlStream(int)
*/
public final int getVolumeControlStream() {
return getWindow().getVolumeControlStream();
}
/**
* Runs the specified action on the UI thread. If the current thread is the UI
* thread, then the action is executed immediately. If the current thread is
* not the UI thread, the action is posted to the event queue of the UI thread.
*
* @param action the action to run on the UI thread
*/
public final void runOnUiThread(Runnable action) {
if (Thread.currentThread() != mUiThread) {
mHandler.post(action);
} else {
action.run();
}
}
/**
* Standard implementation of
* {@link android.view.LayoutInflater.Factory#onCreateView} used when
* inflating with the LayoutInflater returned by {@link #getSystemService}.
* This implementation does nothing and is for
* pre-{@link android.os.Build.VERSION_CODES#HONEYCOMB} apps. Newer apps
* should use {@link #onCreateView(View, String, Context, AttributeSet)}.
*
* @see android.view.LayoutInflater#createView
* @see android.view.Window#getLayoutInflater
*/
public View onCreateView(String name, Context context, AttributeSet attrs) {
return null;
}
/**
* Standard implementation of
* {@link android.view.LayoutInflater.Factory2#onCreateView(View, String, Context, AttributeSet)}
* used when inflating with the LayoutInflater returned by {@link #getSystemService}.
* This implementation handles <fragment> tags to embed fragments inside
* of the activity.
*
* @see android.view.LayoutInflater#createView
* @see android.view.Window#getLayoutInflater
*/
public View onCreateView(View parent, String name, Context context, AttributeSet attrs) {
if (!"fragment".equals(name)) {
return onCreateView(name, context, attrs);
}
String fname = attrs.getAttributeValue(null, "class");
TypedArray a =
context.obtainStyledAttributes(attrs, com.android.internal.R.styleable.Fragment);
if (fname == null) {
fname = a.getString(com.android.internal.R.styleable.Fragment_name);
}
int id = a.getResourceId(com.android.internal.R.styleable.Fragment_id, View.NO_ID);
String tag = a.getString(com.android.internal.R.styleable.Fragment_tag);
a.recycle();
int containerId = parent != null ? parent.getId() : 0;
if (containerId == View.NO_ID && id == View.NO_ID && tag == null) {
throw new IllegalArgumentException(attrs.getPositionDescription()
+ ": Must specify unique android:id, android:tag, or have a parent with an id for " + fname);
}
// If we restored from a previous state, we may already have
// instantiated this fragment from the state and should use
// that instance instead of making a new one.
Fragment fragment = id != View.NO_ID ? mFragments.findFragmentById(id) : null;
if (fragment == null && tag != null) {
fragment = mFragments.findFragmentByTag(tag);
}
if (fragment == null && containerId != View.NO_ID) {
fragment = mFragments.findFragmentById(containerId);
}
if (FragmentManagerImpl.DEBUG) Log.v(TAG, "onCreateView: id=0x"
+ Integer.toHexString(id) + " fname=" + fname
+ " existing=" + fragment);
if (fragment == null) {
fragment = Fragment.instantiate(this, fname);
fragment.mFromLayout = true;
fragment.mFragmentId = id != 0 ? id : containerId;
fragment.mContainerId = containerId;
fragment.mTag = tag;
fragment.mInLayout = true;
fragment.mFragmentManager = mFragments;
fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
mFragments.addFragment(fragment, true);
} else if (fragment.mInLayout) {
// A fragment already exists and it is not one we restored from
// previous state.
throw new IllegalArgumentException(attrs.getPositionDescription()
+ ": Duplicate id 0x" + Integer.toHexString(id)
+ ", tag " + tag + ", or parent id 0x" + Integer.toHexString(containerId)
+ " with another fragment for " + fname);
} else {
// This fragment was retained from a previous instance; get it
// going now.
fragment.mInLayout = true;
// If this fragment is newly instantiated (either right now, or
// from last saved state), then give it the attributes to
// initialize itself.
if (!fragment.mRetaining) {
fragment.onInflate(this, attrs, fragment.mSavedFragmentState);
}
mFragments.moveToState(fragment);
}
if (fragment.mView == null) {
throw new IllegalStateException("Fragment " + fname
+ " did not create a view.");
}
if (id != 0) {
fragment.mView.setId(id);
}
if (fragment.mView.getTag() == null) {
fragment.mView.setTag(tag);
}
return fragment.mView;
}
/**
* Print the Activity's state into the given stream. This gets invoked if
* you run "adb shell dumpsys activity <activity_component_name>".
*
* @param prefix Desired prefix to prepend at each line of output.
* @param fd The raw file descriptor that the dump is being sent to.
* @param writer The PrintWriter to which you should dump your state. This will be
* closed for you after you return.
* @param args additional arguments to the dump request.
*/
public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
writer.print(prefix); writer.print("Local Activity ");
writer.print(Integer.toHexString(System.identityHashCode(this)));
writer.println(" State:");
String innerPrefix = prefix + " ";
writer.print(innerPrefix); writer.print("mResumed=");
writer.print(mResumed); writer.print(" mStopped=");
writer.print(mStopped); writer.print(" mFinished=");
writer.println(mFinished);
writer.print(innerPrefix); writer.print("mLoadersStarted=");
writer.println(mLoadersStarted);
writer.print(innerPrefix); writer.print("mChangingConfigurations=");
writer.println(mChangingConfigurations);
writer.print(innerPrefix); writer.print("mCurrentConfig=");
writer.println(mCurrentConfig);
if (mLoaderManager != null) {
writer.print(prefix); writer.print("Loader Manager ");
writer.print(Integer.toHexString(System.identityHashCode(mLoaderManager)));
writer.println(":");
mLoaderManager.dump(prefix + " ", fd, writer, args);
}
mFragments.dump(prefix, fd, writer, args);
}
/**
* Bit indicating that this activity is "immersive" and should not be
* interrupted by notifications if possible.
*
* This value is initially set by the manifest property
* <code>android:immersive</code> but may be changed at runtime by
* {@link #setImmersive}.
*
* @see android.content.pm.ActivityInfo#FLAG_IMMERSIVE
* @hide
*/
public boolean isImmersive() {
try {
return ActivityManagerNative.getDefault().isImmersive(mToken);
} catch (RemoteException e) {
return false;
}
}
/**
* Adjust the current immersive mode setting.
*
* Note that changing this value will have no effect on the activity's
* {@link android.content.pm.ActivityInfo} structure; that is, if
* <code>android:immersive</code> is set to <code>true</code>
* in the application's manifest entry for this activity, the {@link
* android.content.pm.ActivityInfo#flags ActivityInfo.flags} member will
* always have its {@link android.content.pm.ActivityInfo#FLAG_IMMERSIVE
* FLAG_IMMERSIVE} bit set.
*
* @see #isImmersive
* @see android.content.pm.ActivityInfo#FLAG_IMMERSIVE
* @hide
*/
public void setImmersive(boolean i) {
try {
ActivityManagerNative.getDefault().setImmersive(mToken, i);
} catch (RemoteException e) {
// pass
}
}
/**
* Start an action mode.
*
* @param callback Callback that will manage lifecycle events for this context mode
* @return The ContextMode that was started, or null if it was canceled
*
* @see ActionMode
*/
public ActionMode startActionMode(ActionMode.Callback callback) {
return mWindow.getDecorView().startActionMode(callback);
}
/**
* Give the Activity a chance to control the UI for an action mode requested
* by the system.
*
* <p>Note: If you are looking for a notification callback that an action mode
* has been started for this activity, see {@link #onActionModeStarted(ActionMode)}.</p>
*
* @param callback The callback that should control the new action mode
* @return The new action mode, or <code>null</code> if the activity does not want to
* provide special handling for this action mode. (It will be handled by the system.)
*/
public ActionMode onWindowStartingActionMode(ActionMode.Callback callback) {
initActionBar();
if (mActionBar != null) {
return mActionBar.startActionMode(callback);
}
return null;
}
/**
* Notifies the Activity that an action mode has been started.
* Activity subclasses overriding this method should call the superclass implementation.
*
* @param mode The new action mode.
*/
public void onActionModeStarted(ActionMode mode) {
}
/**
* Notifies the activity that an action mode has finished.
* Activity subclasses overriding this method should call the superclass implementation.
*
* @param mode The action mode that just finished.
*/
public void onActionModeFinished(ActionMode mode) {
}
// ------------------ Internal API ------------------
final void setParent(Activity parent) {
mParent = parent;
}
final void attach(Context context, ActivityThread aThread, Instrumentation instr, IBinder token,
Application application, Intent intent, ActivityInfo info, CharSequence title,
Activity parent, String id, NonConfigurationInstances lastNonConfigurationInstances,
Configuration config) {
attach(context, aThread, instr, token, 0, application, intent, info, title, parent, id,
lastNonConfigurationInstances, config);
}
final void attach(Context context, ActivityThread aThread,
Instrumentation instr, IBinder token, int ident,
Application application, Intent intent, ActivityInfo info,
CharSequence title, Activity parent, String id,
NonConfigurationInstances lastNonConfigurationInstances,
Configuration config) {
attachBaseContext(context);
mFragments.attachActivity(this);
mWindow = PolicyManager.makeNewWindow(this);
mWindow.setCallback(this);
mWindow.getLayoutInflater().setPrivateFactory(this);
if (info.softInputMode != WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED) {
mWindow.setSoftInputMode(info.softInputMode);
}
if (info.uiOptions != 0) {
mWindow.setUiOptions(info.uiOptions);
}
mUiThread = Thread.currentThread();
mMainThread = aThread;
mInstrumentation = instr;
mToken = token;
mIdent = ident;
mApplication = application;
mIntent = intent;
mComponent = intent.getComponent();
mActivityInfo = info;
mTitle = title;
mParent = parent;
mEmbeddedID = id;
mLastNonConfigurationInstances = lastNonConfigurationInstances;
mWindow.setWindowManager(null, mToken, mComponent.flattenToString(),
(info.flags & ActivityInfo.FLAG_HARDWARE_ACCELERATED) != 0);
if (mParent != null) {
mWindow.setContainer(mParent.getWindow());
}
mWindowManager = mWindow.getWindowManager();
mCurrentConfig = config;
}
final IBinder getActivityToken() {
return mParent != null ? mParent.getActivityToken() : mToken;
}
final void performCreate(Bundle icicle) {
onCreate(icicle);
mVisibleFromClient = !mWindow.getWindowStyle().getBoolean(
com.android.internal.R.styleable.Window_windowNoDisplay, false);
mFragments.dispatchActivityCreated();
}
final void performStart() {
mFragments.noteStateNotSaved();
mCalled = false;
mFragments.execPendingActions();
mInstrumentation.callActivityOnStart(this);
if (!mCalled) {
throw new SuperNotCalledException(
"Activity " + mComponent.toShortString() +
" did not call through to super.onStart()");
}
mFragments.dispatchStart();
if (mAllLoaderManagers != null) {
for (int i=mAllLoaderManagers.size()-1; i>=0; i--) {
LoaderManagerImpl lm = mAllLoaderManagers.valueAt(i);
lm.finishRetain();
lm.doReportStart();
}
}
}
final void performRestart() {
mFragments.noteStateNotSaved();
if (mStopped) {
mStopped = false;
if (mToken != null && mParent == null) {
WindowManagerImpl.getDefault().setStoppedState(mToken, false);
}
synchronized (mManagedCursors) {
final int N = mManagedCursors.size();
for (int i=0; i<N; i++) {
ManagedCursor mc = mManagedCursors.get(i);
if (mc.mReleased || mc.mUpdated) {
if (!mc.mCursor.requery()) {
if (getApplicationInfo().targetSdkVersion
>= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
throw new IllegalStateException(
"trying to requery an already closed cursor "
+ mc.mCursor);
}
}
mc.mReleased = false;
mc.mUpdated = false;
}
}
}
mCalled = false;
mInstrumentation.callActivityOnRestart(this);
if (!mCalled) {
throw new SuperNotCalledException(
"Activity " + mComponent.toShortString() +
" did not call through to super.onRestart()");
}
performStart();
}
}
final void performResume() {
performRestart();
mFragments.execPendingActions();
mLastNonConfigurationInstances = null;
mCalled = false;
// mResumed is set by the instrumentation
mInstrumentation.callActivityOnResume(this);
if (!mCalled) {
throw new SuperNotCalledException(
"Activity " + mComponent.toShortString() +
" did not call through to super.onResume()");
}
// Now really resume, and install the current status bar and menu.
mCalled = false;
mFragments.dispatchResume();
mFragments.execPendingActions();
onPostResume();
if (!mCalled) {
throw new SuperNotCalledException(
"Activity " + mComponent.toShortString() +
" did not call through to super.onPostResume()");
}
}
final void performPause() {
mFragments.dispatchPause();
mCalled = false;
onPause();
mResumed = false;
if (!mCalled && getApplicationInfo().targetSdkVersion
>= android.os.Build.VERSION_CODES.GINGERBREAD) {
throw new SuperNotCalledException(
"Activity " + mComponent.toShortString() +
" did not call through to super.onPause()");
}
mResumed = false;
}
final void performUserLeaving() {
onUserInteraction();
onUserLeaveHint();
}
final void performStop() {
if (mLoadersStarted) {
mLoadersStarted = false;
if (mLoaderManager != null) {
if (!mChangingConfigurations) {
mLoaderManager.doStop();
} else {
mLoaderManager.doRetain();
}
}
}
if (!mStopped) {
if (mWindow != null) {
mWindow.closeAllPanels();
}
if (mToken != null && mParent == null) {
WindowManagerImpl.getDefault().setStoppedState(mToken, true);
}
mFragments.dispatchStop();
mCalled = false;
mInstrumentation.callActivityOnStop(this);
if (!mCalled) {
throw new SuperNotCalledException(
"Activity " + mComponent.toShortString() +
" did not call through to super.onStop()");
}
synchronized (mManagedCursors) {
final int N = mManagedCursors.size();
for (int i=0; i<N; i++) {
ManagedCursor mc = mManagedCursors.get(i);
if (!mc.mReleased) {
mc.mCursor.deactivate();
mc.mReleased = true;
}
}
}
mStopped = true;
}
mResumed = false;
}
final void performDestroy() {
mWindow.destroy();
mFragments.dispatchDestroy();
onDestroy();
if (mLoaderManager != null) {
mLoaderManager.doDestroy();
}
}
/**
* @hide
*/
public final boolean isResumed() {
return mResumed;
}
void dispatchActivityResult(String who, int requestCode,
int resultCode, Intent data) {
if (false) Log.v(
TAG, "Dispatching result: who=" + who + ", reqCode=" + requestCode
+ ", resCode=" + resultCode + ", data=" + data);
mFragments.noteStateNotSaved();
if (who == null) {
onActivityResult(requestCode, resultCode, data);
} else {
Fragment frag = mFragments.findFragmentByWho(who);
if (frag != null) {
frag.onActivityResult(requestCode, resultCode, data);
}
}
}
}
时间： 2024-11-10 05:23:54