android 任意移动控件

[android]代码库

enter.setOnTouchListener(new OnTouchListener() {
   int[] temp = new int[]{ 0, 0};
   @Override
   public boolean onTouch(View arg0, MotionEvent arg1) {
    int x = (int)arg1.getRawX();
    int y = (int)arg1.getRawY();
    switch (arg1.getAction()) {
    case MotionEvent.ACTION_DOWN:
     temp[0] = (int)arg1.getX();
     temp[1] = y - arg0.getTop();
     Log.e("suo", "ACTION_DOWN");
     break;
    case MotionEvent.ACTION_MOVE:
     arg0.layout(x - temp[0], y - temp[1], x - temp[0] + arg0.getWidth(), y - temp[1] + arg0.getHeight());
     arg0.postInvalidate();
     Log.e("suo", "ACTION_MOVE");
     break;
    case MotionEvent.ACTION_UP:
     Log.e("suo", "ACTION_UP");
     break;
    default:
     break;
    }
    return false;
   }
  });