從自定義行動畫（閃爍）ListView

Question

我想眨眼listView自定義行儘管我正在尋找淡出淡出動畫列表視圖行，但在下面的代碼中，我只是改變圖像後一秒，並有設置問題啓動和訪問listView getViews之外的背景。我正在使用Activity，listView是該活動中的一個組件。

請指點如何訪問列表視圖的項目我BaseAdapter以外的自定義方法

public class MyView extends Activity implements { 

     private Timer activeCallBlinker; 
     MyListAdapter mActiveAdapter; 

     private class MyListAdapter extends BaseAdapter { 

      private Activity activity; 
     private ArrayList<HashMap<String, String>> data; 
     private LayoutInflater inflater = null; 

     ViewHolder viewHolder = null; 

     public MyListAdapter(Activity act, 
       ArrayList<HashMap<String, String>> dta) { 
      activity = act; 
      data = dta; 
      inflater = (LayoutInflater) activity 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

     } 

     @Override 
     public int getCount() { 
      // TODO Auto-generated method stub 
      return data.size(); 
     } 

     @Override 
     public Object getItem(int position) { 
      // TODO Auto-generated method stub 
      return position; 
     } 

     @Override 
     public long getItemId(int position) { 
      // TODO Auto-generated method stub 
      return position; 
     } 

     @Override 
     public View getView(final int position, View convertView, 
       ViewGroup parent) { 
      // TODO Auto-generated method stub 

      View view = null; 

      if (convertView == null) { 

       view = inflater.inflate(R.layout.my_listitem, null); 

       viewHolder = new ViewHolder(); 

       viewHolder.cellBgImg = (ImageView) view.findViewById(R.id.cellBgImage); /// Works fine and setting 

       view.setTag(viewHolder); 

      } else { 
       view = convertView; 
      } 

      viewHolder = (ViewHolder) view.getTag(); 

      viewHolder.cellBgImg.setImageResource(R.drawable.stripe_flash); 

      return view; 
     } 

} 

public void populateAndBlink() { 

     mActiveAdapter = new MyListAdapter(ActiveCallView.this, calledPartyArr); 

     AnimationAdapter animAdapter = new SwingBottomInAnimationAdapter(mActiveAdapter); 
         animAdapter.setAbsListView(getListView()); 
         lvActiveCall.setAdapter(animAdapter); 


        //// After successful population with animation 

        I am looking to blink it with Fade in Fade out but I can't find a good way so just changing images of background for my listadapter items 

        activeCallBlinker = new Timer(); 
        startActiveTimer();  

} 

public void startActiveTimer(){ 

     final int wantedPosition = globalRowIndex; 

     final Handler handler = new Handler(); 
     activeCallBlinker.scheduleAtFixedRate (new TimerTask(){ 
      public void run(){ 

       handler.post (new Runnable(){ 
        public void run(){ 

         runOnUiThread(new Runnable() // start actions in UI thread 
         { 

          @Override 
          public void run() 
          { 
           View cellView = mActiveAdapter.getView(wantedPosition, null,getListView()); 
           //ViewHolder viewHolder = (ViewHolder) cellView.getTag(); 
           ViewHolder viewHolder = new ViewHolder(); 

           viewHolder.cellBgImg = (ImageView)cellView.findViewById(R.id.cellBgImage); 
           viewHolder.timerLbl = (TextView)cellView.findViewById(R.id.timerLbl); 

           if(viewHolder.timerLbl.getVisibility() == View.VISIBLE) 
            viewHolder.timerLbl.setVisibility(View.INVISIBLE);  //// Unable to set InVisibility 
           else 
            viewHolder.timerLbl.setVisibility(View.VISIBLE);  //// Unable to set Visibility 

           String resName = getResourceNameFromClassByID(R.drawable.class, R.drawable.stripe); 
           Log.d("Resource Name", resName); 

           final Drawable d1 = getResources().getDrawable(R.drawable.stripe); 
           final Drawable d2 = getResources().getDrawable(R.drawable.strip_header); 




           if (viewHolder.cellBgImg.getDrawable().equals(d1)) {  //// Unable to check Drawable image for setting up background only else is called 

            Log.d("Resource Name", d1.toString()); 
            viewHolder.cellBgImg.setImageResource(R.drawable.stripe_flash); //// Unable to change image of backkground 
           } else { 

            Log.d("Resource Name", d2.toString()); 
            viewHolder.cellBgImg.setImageResource(R.drawable.stripe); //// Unable to change image of backkground 
           } 


          } 
         }); 
        } 
       }); 

      } 
     }, 0, 1000); 
    } 

    public ListView getListView() { 
     return lvActiveCall; 
    } 

}

Answer 1

我很欣賞pskink意見，但法承擔的ListView行動需要一個輕微的延遲，直到之後調用除非listView動態行添加動畫已完成

因此我創建了一個單獨的Thread runnable並調用了我的方法

worker = Executors.newSingleThreadScheduledExecutor(); 

        Runnable myRunnable = createRunnable(i); 

        worker.schedule(myRunnable, 2, TimeUnit.SECONDS); 



    private Runnable createRunnable(final int wantedPosition){ 



    Runnable aRunnable = new Runnable(){ 
      public void run(){ 



      runOnUiThread(new Runnable() // start actions in UI 
       // thread 
       { 
       @Override 
       public void run() { 

       ApplyActionOnActiveCallsAfterDelay(wantedPosition); 

       } 
      } 
     }; 

     return aRunnable; 

    }