RunonUiThread（）或CustomListAdapter導致內存泄漏？

Question

我不確定是哪一個導致內存泄漏，所以根據logCat我打印了我的代碼，請幫助我在這裏做什麼錯誤？

public class EfficientAdapter extends BaseAdapter { 
     private LayoutInflater mInflater; 
     // private Context context; 
     ArrayList<String> data; 
     int pos; 

     public EfficientAdapter(Context context,ArrayList<String> received) { 

      mInflater = LayoutInflater.from(context); 
      //this.context = context; 
      data = received; 
     } 

     @Override 
     public View getView(final int position, View convertView, ViewGroup parent) { 
      ViewHolder holder; 

      if(convertView == null) 
      { 
      convertView = mInflater.inflate(R.layout.list_cities, null); 

      holder = new ViewHolder(); 
      holder.textLine = (TextView) convertView.findViewById(R.id.lblCity); 

      convertView.setTag(holder); 

      }else 
      { 
       holder = (ViewHolder)convertView.getTag(); 

      } 

      convertView.setOnClickListener(new android.view.View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       myInterface.search(getItem(position)); 
       SearchCity.this.dismiss(); 
      } 
     }); 



      holder.textLine.setText(getItem(position)); 
      return convertView; 
     } 

     class ViewHolder { 
      TextView textLine; 

     } 



     @Override 
     public long getItemId(int position) { 
      return 0; 
     } 

     @Override 
     public int getCount() { 
      return data.size(); 
     } 

     @Override 
     public String getItem(int position) { 
      return data.get(position); 
     } 



     } 

堆棧跟蹤：

05-18 19:08:57.682: ERROR/WindowManager(314): Activity com.FindMe.DisplayAtms has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@4501cdf0 that was originally added here 
05-18 19:08:57.682: ERROR/WindowManager(314): android.view.WindowLeaked: Activity com.FindMe.DisplayAtms has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@4501cdf0 that was originally added here 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.view.ViewRoot.<init>(ViewRoot.java:247) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.view.Window$LocalWindowManager.addView(Window.java:424) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.app.Dialog.show(Dialog.java:241) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.FindMe.DisplayAtms$1.run(DisplayAtms.java:269) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.app.Activity.runOnUiThread(Activity.java:3707) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.FindMe.DisplayAtms$AsycLoaderFromDbAndMapInjector.onPreExecute(DisplayAtms.java:880) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.os.AsyncTask.execute(AsyncTask.java:391) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.FindMe.DisplayAtms.LoadFunction(DisplayAtms.java:145) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.FindMe.DisplayAtms$7.search(DisplayAtms.java:513) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.FindMe.SearchCity$EfficientAdapter$1.onClick(SearchCity.java:152) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.view.View.performClick(View.java:2408) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.view.View$PerformClick.run(View.java:8816) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.os.Handler.handleCallback(Handler.java:587) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.os.Handler.dispatchMessage(Handler.java:92) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.os.Looper.loop(Looper.java:123) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at android.app.ActivityThread.main(ActivityThread.java:4627) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at java.lang.reflect.Method.invokeNative(Native Method) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at java.lang.reflect.Method.invoke(Method.java:521) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
05-18 19:08:57.682: ERROR/WindowManager(314):  at dalvik.system.NativeStart.main(Native Method) 

的AsyncTask：

public class Asyctast extends AsyncTask<Void, Object, Void> 
{ 

private ProgressDialog dialog = new ProgressDialog(DisplayAtms.this); 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     runOnUiThread(showProgress); 
    } 


    @Override 
    protected void onProgressUpdate(final Object... args) { 
     super.onProgressUpdate(args); 
     if ((Boolean) args[0]) { 
      Toast.makeText(DisplayAtms.this, args[1].toString(), 
        Toast.LENGTH_LONG).show(); 
     } 
    } 

    @Override 
    protected Void doInBackground(Void... arg0) { 
     Log.d("Asynctask", ""+arg0); 


      publishProgress(true,"sd sdfsdf"); 


      return null; 

    } 

@Override 
protected void onPostExecute(Boolean result) { 
    runOnUiThread(hideProgress); 
    } 

} 


Runnable showProgress = new Runnable() { 

     @Override 
     public void run() { 
      pd = new ProgressDialog(DisplayAtms.this); 
      pd = registerDialog(pd); 
      pd.show(); 
     } 
}; 


Runnable hideProgress = new Runnable() { 

     @Override 
     public void run() { 
      if(pd != null) 
      pd.hide(); 
     } 
}; 

Answer 1

AsyncTask.onPostExecute在UI線程運行，沒有必要爲這樣的事情：

Runnable showProgress = new Runnable() { 

    @Override 
    public void run() { 
     pd = new ProgressDialog(DisplayAtms.this); //here is the leak 
     pd = registerDialog(pd); 
     pd.show(); 

    } 
}; 

試試這個：

@Override 
protected void onPreExecute() { 
    pd.show(); 
} 

@Override 
protected void onPostExecute(Boolean result) { 
    pd.dismiss(); 
} 

您可以使用Handler太：
Here is tutorial for handler