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案例演示
布局文件
- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:tools="http://schemas.android.com/tools"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- tools:context="${packageName}.${activityClass}" >
- <Button
- android:id="@+id/btn_bind"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_alignParentLeft="true"
- android:layout_below="@+id/btn_stop"
- android:onClick="click"
- android:text="context.bindService" />
- <Button
- android:id="@+id/btn_unbind"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_below="@+id/btn_bind"
- android:onClick="click"
- android:text="context.unbindService" />
- </RelativeLayout>
注冊service
- <?xml version="1.0" encoding="utf-8"?>
- <manifest xmlns:android="http://schemas.android.com/apk/res/android"
- package="com.example.android_servicedemo"
- android:versionCode="1"
- android:versionName="1.0" >
- <uses-sdk
- android:minSdkVersion="14"
- android:targetSdkVersion="19" />
- <application
- android:allowBackup="true"
- android:icon="@drawable/ic_launcher"
- android:label="@string/app_name"
- android:theme="@style/AppTheme" >
- <activity
- android:name="com.example.android_servicedemo.MainActivity"
- android:label="@string/app_name" >
- <intent-filter>
- <action android:name="android.intent.action.MAIN" />
- <category android:name="android.intent.category.LAUNCHER" />
- </intent-filter>
- </activity>
- <service
- android:name="ServiceTese"
- android:permission="com.example.permission.servers" >
- <intent-filter>
- <action android:name="com.example.serversdemo.action" />
- </intent-filter>
- </service>
- </application>
- </manifest>
主activity
package com.example.android_servicedemo; import android.app.Activity; import android.app.Service; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.Bundle; import android.os.IBinder; import android.util.Log; import android.view.View; public class MainActivity extends Activity { private Intent service; MyConn myConn; public static final String TAG = "MainActivity"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // 隐士意图的启动 service = new Intent(); service.setAction("com.example.serversdemo.action"); } public void click(View v) { int id = v.getId(); switch (id) { case R.id.btn_bind: // con:该參数是一个ServiceConnection对象。该对象用于监听訪问者与service之间的连接情况 // flag:指定绑定时是否自己主动创建service(假设service还没创建)0:不自己主动创建。BIND_AUTO_CREATE自己主动创建 myConn = new MyConn(); this.bindService(service, myConn, Service.BIND_AUTO_CREATE); break; case R.id.btn_unbind: if (myConn != null) { this.unbindService(myConn); } break; default: break; } } class MyConn implements ServiceConnection { /** * 当连接成功的时候回调此方法 */ @Override public void onServiceConnected(ComponentName name, IBinder service) { // TODO Auto-generated method stub Log.i(TAG, "---------onServiceConnected" + name); } /** * 当service所在的宿主矜持因为异常终止或因为其它原因终止,导致该service与訪问者之间断开连接的时候回调 */ @Override public void onServiceDisconnected(ComponentName name) { Log.i(TAG, "---------onServiceDisconnected" + name); } } }
执行结果
点击context.bindService--->点击context.unbindService。生命周期为
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点击context.bindService--->home键--->点击context.bindService--->点击context.bindService..
.--->点击context.stopService
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所以仅仅能点击一次unbind
startService生命周期见http://blog.csdn.net/zhaoyazhi2129/article/details/32711481
时间: 2024-10-11 04:25:03