Fragment使用LocalBroadcastManager接收广播消息

这种方式不用在配置文件加东西

变量声明

1. LocalBroadcastManager broadcastManager;
2. IntentFilter intentFilter;
3. BroadcastReceiver mReceiver;

广播注册,可以写在Activity（onCreate）,也可以写在Fragment（onActivityCreated）里。

1. broadcastManager = LocalBroadcastManager.getInstance(getActivity());
2. intentFilter = new IntentFilter();
3. intentFilter.addAction("android.intent.action.CART_BROADCAST");
4. mReceiver = new BroadcastReceiver() {
5. @Override
6. public void onReceive(Context context, Intent intent){
7. //收到广播后所作的操作
8. }
9. };
10. broadcastManager.registerReceiver(mReceiver, intentFilter);

发送广播

1. Intent intent = new Intent("android.intent.action.CART_BROADCAST");
2. LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(intent);

当然，和正常广播一样，也要在对应的生命周期中反注册掉:

1. @Override
2. protected void onDestroy() {
3. super.onDestroy();
4. broadcastManager.unregisterReceiver(mReceiver);
5. }