长按手势实现

//创建手势

UILongPressGestureRecognizer *longGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];

//将创建好的手势添加到你的控件上

[view addGestureRecognizer:longGesture];

//添加事件

-(void)longPress:(UIGestureRecognizer *)gr

{
    //确保长按只执行一次
   if (gr.state==UIGestureRecognizerStateBegan) {
        NSLog(@"long press ");

 }