广播接收器onReceive（）不被调用

广播接收机

mBroadcastReceiver = object : BroadcastReceiver() { override fun onReceive(context: Context, intent: Intent) { Log.i(TAG,"contact list populate broadcast") var action = intent.action Log.v("Action is ",action) when (action) { GetContactListFromServer -> { println("Get contact list") } } } } val filter = IntentFilter(GetContactListFromServer) this.registerReceiver(mBroadcastReceiver, filter) 

这是我如何发送广播

 val i = Intent(ContactListActivity.Obz.GetContactListFromServer) i.`package` = mApplicationContext?.getPackageName() mApplicationContext?.sendBroadcast(i) 

此代码工作正常，直到昨晚。 我无法调试出了什么问题？

Answer 1

像这样尝试

在你的活动里面onCreate方法声明

 LocalBroadcastManager.getInstance(context).registerReceiver(MyBroadcastReceiver, new IntentFilter("MyFilter")); 

然后在Activity中实现MyBroadcastReceiver

 private final BroadcastReceiver MyBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String Action = intent.getStringExtra("Action"); switch (Action){ case "updatedata": String message = intent.getStringExtra("message"); String date_time = intent.getStringExtra("date_time"); break; default: break; } } }; 

像这样发送广播

 Intent intent = new Intent("MyFilter"); intent.putExtra("message", message); intent.putExtra("date_time", date_time); intent.putExtra("Action", "updatedata"); LocalBroadcastManager.getInstance(context).sendBroadcast(intent);