安卓：在停止服務奇怪的問題

Question

我有開始這樣的一個服務的活動：

Intent youtubeIntent = new Intent(this, YoutubeFeedService.class); 
    service = startService(youtubeIntent); 

並在服務站我用廣播接收器來檢測：

@Override 
public void onResume() { 
    IntentFilter filter; 
    filter = new IntentFilter(YoutubeFeedService.NEW_VIDEO_CELL); 
    receiver = new FeaturedReceiver(); 
    registerReceiver(receiver, filter); 
    super.onResume(); 
} 

@Override public void onPause() { 
    unregisterReceiver(receiver); 
    super.onPause(); 
} 



public class FeaturedReceiver extends BroadcastReceiver { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     String title = intent.getStringExtra("title"); 


     if (title.equals("-1") || title.equals("1")){ 
      //stopService(new Intent(FeaturedActivity.this, service.getClass())); 
      try { 
       Class serviceClass = Class.forName(service.getClassName()); 
       stopService(new Intent(FeaturedActivity.this, serviceClass)); 
      } 
      catch (ClassNotFoundException e) {} 

     } 

    } 
} 

我第一次試圖殺死

stopService(new Intent(FeaturedActivity.this, service.getClass())); 

服務，但這並沒有工作，所以我代替使用

try { 
       Class serviceClass = Class.forName(service.getClassName()); 
       stopService(new Intent(FeaturedActivity.this, serviceClass)); 
      } 
      catch (ClassNotFoundException e) {} 

而且它的工作！任何人都可以解釋有什麼區別？

由於

Answer 1

stopService(new Intent(FeaturedActivity.this, service.getClass())); 

在這種情況下，service是ComponentName。因此，service.getClass()將返回ComponentName.class。您的服務是YoutubeFeedService.class。

Class serviceClass = Class.forName(service.getClassName()); 
stopService(new Intent(FeaturedActivity.this, serviceClass)); 

這似乎簡單的調用：

stopService(new Intent(FeaturedActivity.this, YoutubeFeedService.class);