Android 拨号器的简单实现

功能实现：一个EditView 一个拨打按钮，输入号码跳转到拨号界面

界面布局：activity_call.xml

　　//线性垂直布局：一个EditView文本、一个Button按钮 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:orientation="vertical"
 6     android:paddingBottom="@dimen/activity_vertical_margin"
 7     android:paddingLeft="@dimen/activity_horizontal_margin"
 8     android:paddingRight="@dimen/activity_horizontal_margin"
 9     android:paddingTop="@dimen/activity_vertical_margin"
10     tools:context=".PhoneActivity" >
11
12     <TextView
13         android:layout_width="wrap_content"
14         android:layout_height="wrap_content"
15         android:text="请输入电话" />
16
17     <EditText
18         android:id="@+id/editText1"
19         android:layout_width="fill_parent"
20         android:layout_height="wrap_content"
21         android:inputType="phone" />
22
23     <Button
24         android:id="@+id/callsumbit"
25         android:layout_width="wrap_content"
26         android:layout_height="wrap_content"
27         android:layout_gravity="center"
28         android:text="拨打电话" />
29
30 </LinearLayout>

CallActivity的Create方法

 1 protected void onCreate(Bundle savedInstanceState) {
 2         super.onCreate(savedInstanceState);
 3         setContentView(R.layout.activity_call);
 4         Button btn = (Button) findViewById(R.id.callsumbit);
 5         btn.setOnClickListener(new OnClickListener() {
 6
 7             @Override
 8             public void onClick(View v) {
 9                 EditText etNumber = (EditText) findViewById(R.id.editText1);
10
11                 String number = etNumber.getText().toString();
12                 Intent intent = new Intent();
13                 intent.setAction(Intent.ACTION_CALL);
14                 intent.setData(Uri.parse("tel:" + number));
15                 startActivity(intent);
16             }
17         });
18     }

增加拨打电话的权限：AndroidManifest.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3     package="com.ccec.callphone"
 4     android:versionCode="1"
 5     android:versionName="1.0" >
 6
 7     <uses-sdk
 8         android:minSdkVersion="8"
 9         android:targetSdkVersion="18" />
10     <uses-permission android:name="android.permission.CALL_PHONE"/>
11
12     <application
13         android:allowBackup="true"
14         android:icon="@drawable/ic_launcher"
15         android:label="@string/app_name"
16         android:theme="@style/AppTheme" >
17         <activity
18             android:name="com.ccec.callphone.CallActivity"
19             android:label="@string/app_name" >
20             <intent-filter>
21                 <action android:name="android.intent.action.MAIN" />
22
23                 <category android:name="android.intent.category.LAUNCHER" />
24             </intent-filter>
25         </activity>
26     </application>
27
28 </manifest>

至此可以实现拨号功能。