BroadcastReceiver是安卓四大組件之一，本例通過代碼的方式演示靜態注冊和動態注冊。
1、靜態注冊
靜態注冊只需要AndroidManifest.xml中進行配置：
AndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="thonlon.example.cn.ipdaildemo">
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".MyBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>
</application>
</manifest>
下面是相關的代碼：
MyBroadcastReceiver.java：
package thonlon.example.cn.ipdaildemo;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
/**
* Created by NIUXINLONG on 2018/6/21.
*/
public class MyBroadcastReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
String number = getResultData();
setResultData(number+"123456");
}
}
MainActivity.java：
package thonlon.example.cn.ipdaildemo;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
private MyBroadcastReceiver myBroadcastReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MyBroadcastReceiver myBroadcastReceiver = new MyBroadcastReceiver();//在主活動中調用了廣播使廣播生效
}
2、動態注冊
需要在Java代碼中進行如下設定：
MainActivity.java：
package thonlon.example.cn.ipdaildemo;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
private MyBroadcastReceiver myBroadcastReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
IntentFilter filter = new IntentFilter();
filter.addAction("android.intent.action.NEW_OUTGOING_CALL");
myBroadcastReceiver = new MyBroadcastReceiver();
registerReceiver(myBroadcastReceiver, filter);
}
@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(myBroadcastReceiver);//銷毀廣播
}
}
另外，動態相互側雖然不需要在AndroidManifest.xml中配置<receiver>，但是不要忘了在配置文件加上廣播類型的權限：
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
