android 动态静态广播注册
静态广播注册(及时activity已经被销毁广播正常运作)
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.administrator.myapplication">
<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=".MyReceiver">
<intent-filter>
<action android:name="com.runbo.sos.key.down"/>
</intent-filter>
</receiver>
</application>
</manifest>
选中的部分为静态广播的注册
此广播是业务需求 其他设备没有
MyReceiver 为注册广播接受的模块
public class MyReceiver extends BroadcastReceiver {
private static final String TAG = "MyReceiver";
public MyReceiver(){
Log.i(TAG,"MyReceiver constructor");
}
@Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG,"onReceive start");
Toast.makeText(context,"广播监听到了",Toast.LENGTH_SHORT);
Log.i(TAG,"onReceive end"+context);
}
}
动态广播注册
生命广播接受的对象
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.administrator.myapplication">
<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=".MyReceiver">
</receiver>
</application>
</manifest>
完成动态广播的注册
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
private static final String SOS_KEY ="com.runbo.sos.key.down";
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.i(TAG,"onCreate start");
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MyReceiver myReceiver = new MyReceiver();
IntentFilter filter = new IntentFilter(SOS_KEY);
registerReceiver(myReceiver,filter);
Log.i(TAG,"onCreate end");
}
}
其他广播的监听有的需要申请权限
有的只能进行动态注册 比如亮屏 灭屏幕