Android : Drag and drop buttons in android

I have some problems i dont want to add buttons on the end of colums: At the moment it work like that: if i have got 5 buttons: 1,2,3,4,5: i want to button 2 drag on position betwen button 4 and 5 1 3 4 2 5 but it is drag 1 3 4 5 2 But i dont know why. And second problem is if drag the button on the unlayer surface it and there drop it will be desapiard but i dont know where ?

And second question is how can i save position of buttons and use it for another itent

  class MyDragListener implements OnDragListener {
        Drawable enterShape = getResources().getDrawable(R.drawable.shape_droptarget);
        Drawable normalShape = getResources().getDrawable(R.drawable.shape);

        @Override
        public boolean onDrag(View v, DragEvent event) {
          int action = event.getAction();
          switch (event.getAction()) {
          case DragEvent.ACTION_DRAG_STARTED:
            // do nothing
            break;
          case DragEvent.ACTION_DRAG_ENTERED:
            v.setBackgroundDrawable(enterShape);
            break;
          case DragEvent.ACTION_DRAG_EXITED:
            v.setBackgroundDrawable(normalShape);
            break;
          case DragEvent.ACTION_DROP:
            // Dropped, reassign View to ViewGroup
            View view = (View) event.getLocalState();
            ViewGroup owner = (ViewGroup) view.getParent();
            owner.removeView(view);
            LinearLayout container = (LinearLayout) v;
            container.addView(view);
           // container.

            view.setVisibility(View.VISIBLE);
            break;
          case DragEvent.ACTION_DRAG_ENDED:
            v.setBackgroundDrawable(normalShape);
          default:
            break;
          }
          return true;
        }
      }