Android--------------BroadcastReceiver的學習
一、BroadcastReceiver的靜態註冊
BroadCastRecevier.java文件
public class BroadCastRecevier extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.i("TAG", intent.getAction());
}
}
AndroidManifest.xml文件
<receiver android:name=".BroadCastRecevier">
<intent-filter >
<action android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
</intent-filter>
</receiver>
二、BroadcastReceiver的動態註冊
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//這步相當於靜態註冊的方法
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_APP_ERROR);
registerReceiver(BroadCRecevier, filter);
}
@Override
protected void onDestroy() {
super.onDestroy();
unregisterReceiver(BroadCRecevier);
}
private BroadcastReceiver BroadCRecevier = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
intent.getAction();
}
} ;
三、BroadcastReceiver生命周期----------》它的生命周期很短暫,只有不到10秒
Android--------------BroadcastReceiver的學習