Android(Java):滑动删除实现——手势识别类

1初始化手势识别变量

private GestureDetector gd = null;

gd = new GestureDetector(mContext, new GestureListener());

2接管触摸事件

convertView.setOnTouchListener(new OnTouchListener() {
   @Override
   public boolean onTouch(View v, MotionEvent event) {
    // TODO Auto-generated method stub
    view = v;
    if (event.getAction() == MotionEvent.ACTION_DOWN) {//设置触摸颜色变化
                    v.setBackgroundResource(R.color.dongao_orange);
                }else{
                 v.setBackgroundResource(0);
                }
    return gd.onTouchEvent(event);
   }
   
  });

3注册手势监听器

private final class GestureListener implements OnGestureListener {

  @Override
  public void onShowPress(MotionEvent e) {
   // TODO Auto-generated method stub
   Log.d("GestureListener", "onShowPress");
  }

  @Override
  public boolean onSingleTapUp(MotionEvent e) {//单击事件
   // TODO Auto-generated method stub
   Log.d("GestureListener", "onSingleTapUp");
//   view.setBackgroundResource(0);
   playVideo(view.getId());
   return false;
  }

  @Override
  public boolean onScroll(MotionEvent e1, MotionEvent e2,
    float distanceX, float distanceY) {//滑动事件
   // TODO Auto-generated method stub
   Log.d("GestureListener", "onScroll");

//if (e2.getX() - e1.getX() > 1) {//向右滑动
    removeListItem(((ViewHolder)view.getTag()).btnDelete,view.getId(),false);
   //}
//   view.setBackgroundResource(R.color.dongao_orange);
   return true;
  }

  @Override
  public void onLongPress(MotionEvent e) {//长按事件 用户体验性不好 不容易发现
    // TODO Auto-generated method stub
   Log.d("GestureListener", "onLongPress");
  }

  @Override
  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
    float velocityY) {
   // TODO Auto-generated method stub
   Log.d("GestureListener", "onFling"+(e2.getX() - e1.getX()));
  // if (e2.getX() - e1.getX() > 1) {
   // removeListItem(((ViewHolder)view.getTag()).btnDelete,view.getId(),false);
  // }
//   view.setBackgroundResource(0);
   return true;
  }
  
  @Override
  public boolean onDown(MotionEvent e) {
   // TODO Auto-generated method stub
   Log.d("GestureListener", "onDown");
//   view.setBackgroundResource(R.color.dongao_orange);
   return true;
  }
  
 }