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Broadcast

  • Normal broadcasts : asynchronous
  • Ordered broadcasts : synchronous
intent intent = new Intent("com.example.broadcastTest.MY_BROADCAST");
sendBroadcast(intent);

Register Receiver​

In Activity

//Custom BroadcastReceiver,Override onReceive methods
//intentFilter : action
//前为响应后的行为，后为响应何种广播
registerReceiver(networkChangeReceiver, intentFilter);

//in onDestroy
unregisterReceiver();

In AndroidManifest,xml

<!-- custom receiver class -->
<receiver android:name=".MyBroadcastReceiver">
  <!-- receiver priority -->
  <intent-filter android:priority="100">
    <!-- custom broadcast -->
    <action android:name="com.example.broadcastTest.MY_BROADCAST" />
  </intent-filter>
</receiver>

Ordered​

intent intent = new Intent("com.example.broadcastTest.MY_BROADCAST");
sendOrderedBroadcast(intent, null);

Local​

// 获取实例
localBroadcastManager = LocalBroadcastManager.getInstance(this);
localBroadcastManager.sendBroadcast(intent); // 发送本地广播

Local Receiver​

localBroadcastManager.registerReceiver(CustomReceiver, intentFilter);
localBroadcastManager.unregisterReceiver(CustomReceiver);