Android拖放动态创建的视图

Question

真的可以提供一些帮助。

我随机创建了一个随机数量的按钮，每个按钮都是setOnTouchListener，看起来工作正常。按钮被添加到Linearlayout（顶部），还有另一个空的Linearlayout（底部）。

我希望能够做到以下几点：

1. 拖动＆amp;在Linearlayout（顶部）和Linearlayout（底部）

    public class GetString extends Activity{
   
    myDragEventListener mDragListen = new myDragEventListener();
   
     public void getString(Context context, String[] temp, int no,  LinearLayout words1, LinearLayout words2) {
   
   
      Button bt;
   
      int i = 0;
      for (i = 0; i < no; i++) {
   
        bt = new Button(context);
        bt.setId(i);
        bt.setText(temp[i]);
        bt.setOnTouchListener(new MyTouchListener());
        words1.addView(bt);
        bt.setOnDragListener(mDragListen);
      }
     }
   
   
   protected class myDragEventListener implements View.OnDragListener {
   
   
    public boolean onDrag(View v, DragEvent event) {
   
       // Defines a variable to store the action type for the incoming event
       final int action = event.getAction();
   
       // Handles each of the expected events
       switch(action) {
   
           case DragEvent.ACTION_DRAG_STARTED:
   
               return false;
   
           case DragEvent.ACTION_DRAG_ENTERED:
   
               v.invalidate();
   
               return true;
   
           case DragEvent.ACTION_DRAG_LOCATION:
   
               return true;
   
           case DragEvent.ACTION_DRAG_EXITED:
   
               v.invalidate();
   
               return true;
   
           case DragEvent.ACTION_DROP:
   
               return true;
   
           case DragEvent.ACTION_DRAG_ENDED:
   
   
   
               return true;
   
           // An unknown action type was received.
           default:
               Log.e("DragDrop Example", "Unknown action type received by OnDragListener.");
               break;
       }
   
       return false;
     }
    }
   
   
   public class MyTouchListener implements View.OnTouchListener {
   
     @Override
     public boolean onTouch(View v, MotionEvent arg1) {
       ClipData data = ClipData.newPlainText("", "");
       View.DragShadowBuilder shadow = new View.DragShadowBuilder(v);
       v.startDrag(data, shadow, null, 0);
       return false;
     }
   }
   
   
   }