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

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LocalBroadcastManager broadcastManager;

IntentFilter intentFilter;

BroadcastReceiver mReceiver;

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

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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

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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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@Override

protected void onDestroy() {

super.onDestroy();

broadcastManager.unregisterReceiver(mReceiver);

}