此方法不用在manifests中注册广播
代码如下：
broadcastManager = LocalBroadcastManager.getInstance(getActivity());
IntentFilter intentFilterupDateCourse = new IntentFilter();
intentFilterupDateCourse.addAction("android.intent.action.upDateCourseShow");
upDateCourse = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent){
showWeek = intent.getIntExtra("month", weekNumber);
showCorse(showWeek);
}
};
broadcastManager.registerReceiver(upDateCourse, intentFilterupDateCourse);
注册完成后切记要在onDestroy()方法中反注册广播
broadcastManager.unregisterReceiver(upDateCourse);
