2015-05-28 55 views
2

我正在使用動態視圖。我正在運行一項服務。當該服務收到廣播時,我將Myview添加到窗口管理器,並在用戶執行某些操作後刪除它。但是因爲服務一直在運行,所以我每次收到廣播時都會添加這個動態視圖'myView'。問題在於,在從窗口管理器中刪除它們並且堆內存分配不斷增加之後,它們沒有被垃圾收集。不知道爲什麼?因爲它裏面有位圖。 5-6行動後,我得到OutOfMemoryException。從服務創建的動態視圖沒有收集垃圾

public class Myservice extends Service{               
     private ParentView myView; 
     WakeReceiver receiver; 

     @Override 
     public void onCreate() 
     { 
      super.onCreate(); 
      registerBroadCastReceiver(); 
     } 


     //Performed when broadcast recieved 
     public void addLayout() { 
      WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE); 
      myView = new ParentView(this); 
      windowManager.addView(myView, getLayoutParam()); 

     } 

     //Performed when user performs action on ParentView 
     public void removeLayout() { 
      WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE); 
      windowManager.removeView(myView); 

     } 

     private void registerBroadCastReceiver() { 
      IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF); 

      receiver = new WakeReceiver(); 
      registerReceiver(receiver, filter); 

     } 

     private WindowManager.LayoutParams getLayoutParam() { 
       WindowManager.LayoutParams localLayoutParams = new  WindowManager.LayoutParams(); 

       localLayoutParams.width = WindowManager.LayoutParams.MATCH_PARENT; 
       localLayoutParams.height = (int) (WindowManager.LayoutParams.MATCH_PARENT); 
       return localLayoutParams; 

     } 


} 

//規範父視圖

public class ParentView extends RelativeLayout { 


     MyService topService; 

     public ParentView(MyService topService) { 
     super(topService); 
     this.topService = topService; 
     LayoutInflater.from(topService).inflate(R.layout.parent_layout, this);     

      setBackgroundDrawable(topService.getResources() 
       .getDrawable(R.drawable.sample_image)); 
     } 

     @Override 
     public boolean onTouchEvent(MotionEvent event) { 
     topService.removeLayout(); 
     } 



} 
+0

請提供ParentView的代碼。看起來您正在存儲指向某些資源的鏈接,這就阻止了垃圾回收。 – Stepango

+0

'removeView'方法有什麼作用嗎?我的意思是,這個視圖實際上被刪除了嗎? – Haspemulator

+0

'static'不會得到gc,除非這個過程完成了,否則你必須在ondestroy中將它清空。 –

回答

0

使用system.gc();這有助於我一次。它調用垃圾收集器。試試看,如果有效,回覆我。

+0

不適合我。 –

+0

在創建視圖之前調用它。 –

+0

您是否使用finally塊。請多做一件事。在你的最後一塊。將位圖設置爲null。然後調用system.gc(); –