Question

我的活动方式是

class MainActivity extends Activity{


onCreate(bundleInstnace){
  super.onCreate(bundleInstnace);
//IntentFilter intentFilter with some actions
 registerReceiver(myReceiver, intentFilter);
}


onDestroy(){
 super.onDestroy();
 try{
 unregisterReceiver(myReceiver)
  }catch(Exception e){}
}



final Receiver myReceiver = new BroadcastReceiver(){

  @Override
    public void onReceive(Context context, Intent intent){

      //functionality based on actions
      }

   }

 }

即使我在onDestroy（）中取消注册myReceiver，即使在调用onDestroy之后，仍然可以接收广播接收器。我尝试在onStart（）中注册并在onStop（）中取消注册但仍然相同。你能帮我准确地告诉我我失踪的地方。问题的发生是随机的..

Answer 1

取消注册接收方后调用super.onDestroy();。（虽然不建议使用onDestroy，因为无法保证调用它。请改用onStop。）

onDestroy(){

     try{
     unregisterReceiver(myReceiver)
      }catch(Exception e){}

    super.onDestroy();
    }

Answer 2

您应该在 onResume 中注册接收者，并在 onPause 中取消注册：

@Override
protected void onResume() {
 super.onResume();
 registerReceiver(myReceiver, intentFilter);
}

@Override 
protected void onPause() {
    super.onPause();
    try {
        unregisterReceiver(myReceiver);
    } catch (IllegalArgumentException e) {
        // Log here or ignore
    }
}

广播接收器即使在onDestroy（）中取消注册后仍在接收

2 个答案: