Android內部類內存泄漏和上下文泄漏？

Question

我在我的閃屏使用處理器延遲重定向如下下一個活動..

@Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.entrance); 
     screenTimeOut(); 
    } 

    private void screenTimeOut() { 
      /* New Handler to start the next screen 
     * and close this Entrance after some seconds.*/ 
     new Handler().postDelayed(new Runnable() { 
      @Override 
      public void run() { 
       initTracker(); 
       /* Create an Intent that will start the Next-Activity. */ 
       checkLoginStatus(); 
      } 
     }, SPLASH_DISPLAY_LENGTH); 
    } 

而在另一個活動正在傳遞上下文的一類並保持內部的上下文上按鈕如下點擊 ..

private Tools tools; 

tools = new Tools(DetailsScreen.this, true); 

工具

private Context _context; 
    private Fragment _fragment; 
    private Activity activity; 
    private String filePath = null; 
    private String camImagePath = null; 

    public Tools() { 
    } 

    public Tools(Context _context, boolean flag) { 
     this._context = _context; 
     this.activity = (Activity) _context; 
     initPath(); 
     if (flag) { 
      createImageFile(); 
     } 
    } 

這些中的任何一個都會成爲泄漏的原因？

又有怎樣使用處理程序如下..

private Handler mHandler = new Handler(); 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.entrance); 
     screenTimeOut(); 
    } 

private void screenTimeOut() { 
      /* New Handler to start the next screen 
     * and close this Entrance after some seconds.*/ 
     mHandler.postDelayed(new Runnable() { 
      @Override 
      public void run() { 
       initTracker(); 
       /* Create an Intent that will start the Next-Activity. */ 
       checkLoginStatus(); 
      } 
     }, SPLASH_DISPLAY_LENGTH); 
    } 


    @Override 
    protected void onDestroy() { 
     super.onDestroy(); 
     mHandler.removeCallbacksAndMessages(null); 
    } 

Answer 1

1. Handler和Runnable不應該匿名方式使用。
2. 您應該避免將整個活動作爲參數傳遞給其他類。如果上下文是您想使用的所有內容activity.getContext()。

此處瞭解詳情：
http://www.androiddesignpatterns.com/2013/01/inner-class-handler-memory-leak.html http://www.androiddesignpatterns.com/2013/04/activitys-threads-memory-leaks.html