有序广播 | 易学教程

MianActivity

public class MainActivity extends AppCompatActivity {       public static final String ACTION = "ordered_broadcast_action";      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);     }      // 发送广播     public void sendBroadcast(View view) {         Intent intent = new Intent(ACTION);         intent.putExtra("msg", "广播内容");          // 发送有序广播         sendOrderedBroadcast(intent, null);     }  }

FirstReceiver(接收器代表)

public class FirstReceiver extends BroadcastReceiver {       @Override     public void onReceive(Context context, Intent intent) {         String msg = intent.getStringExtra("msg");         Log.d("1622", "第一个接收器接到的数据：" + msg);     } }

SecondReceiver(注意里面的中断方法)

public class SecondReceiver extends BroadcastReceiver {       @Override     public void onReceive(Context context, Intent intent) {         String msg = intent.getStringExtra("msg");         Log.d("1622", "第二个接收器接到的数据：" + msg);          // 中断有序广播的传递         abortBroadcast();//广播顺序播放到这的时候将不再向下播放.     } }

清单文件（确定优先级，如果没有优先级按书写顺序发送）

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="org.mobiletrain.android22_orderedbroadcast">      <application         android:allowBackup="true"         android:icon="@mipmap/ic_launcher"         android:label="@string/app_name"         android:supportsRtl="true"         android:theme="@style/AppTheme">         <activity android:name=".activity.MainActivity">             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                  <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>         </activity>          <receiver android:name=".receiver.FirstReceiver">             <intent-filter android:priority="1">                 <action android:name="ordered_broadcast_action"/>             </intent-filter>          </receiver>          <receiver android:name=".receiver.SecondReceiver">             <intent-filter android:priority="2">                 <action android:name="ordered_broadcast_action"/>             </intent-filter>          </receiver>          <receiver android:name=".receiver.ThirdReceiver">             <intent-filter android:priority="3">                 <action android:name="ordered_broadcast_action"/>             </intent-filter>          </receiver>      </application>  </manifest>

文章来源: 有序广播

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android广播

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