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

LocalBroadcastManager broadcastManager;
IntentFilter intentFilter;
BroadcastReceiver mReceiver;

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

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

发送广播

Intent intent = new Intent("android.intent.action.CART_BROADCAST");
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:  

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