六种手势识别，你用了哪些？——董鑫

//1，轻击手势（TapGestureRecognizer）

//新建tap手势
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)];
//设置点击次数和点击手指数
tapGesture.numberOfTapsRequired = 1; //点击次数
tapGesture.numberOfTouchesRequired = 1; //点击手指数
[self.view addGestureRecognizer:tapGesture];

//轻击手势触发方法
-(void)tapGesture:(id)sender
{
    //轻击后要做的事情
}

//2，长按手势（LongPressGestureRecognizer）

//添加长摁手势
UILongPressGestureRecognizer *longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressGesture:)];
//设置长按时间
longPressGesture.minimumPressDuration = 0.5; //(2秒)
[self.view addGestureRecognizer:longPressGesture];

//常摁手势触发方法
-(void)longPressGesture:(id)sender
{
    UILongPressGestureRecognizer *longPress = sender;
    if (longPress.state == UIGestureRecognizerStateBegan)
    {
        UIAlertView *alter = [[UIAlertView alloc] initWithTitle:@"提示" message:@"长按触发" delegate:nil cancelButtonTitle:@"取消" otherButtonTitles: nil];
        [alter show];
    }
}

//3，轻扫手势（SwipeGestureRecognizer）

//添加轻扫手势
UISwipeGestureRecognizer *swipeGesture = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
//设置轻扫的方向
swipeGesture.direction = UISwipeGestureRecognizerDirectionRight; //默认向右
[self.view addGestureRecognizer:swipeGesture];

//添加轻扫手势
UISwipeGestureRecognizer *swipeGestureLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
//设置轻扫的方向
swipeGestureLeft.direction = UISwipeGestureRecognizerDirectionLeft; //默认向右
[self.view addGestureRecognizer:swipeGestureLeft];

//轻扫手势触发方法
-(void)swipeGesture:(id)sender
{
    UISwipeGestureRecognizer *swipe = sender;
    if (swipe.direction == UISwipeGestureRecognizerDirectionLeft)
    {
        //向左轻扫做的事情
    }
    if (swipe.direction == UISwipeGestureRecognizerDirectionRight)
    {
        //向右轻扫做的事情
    }
}

//4，捏合手势（PinchGestureRecognizer）

//添加捏合手势
UIPinchGestureRecognizer *pinchGesture = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchGesture:)];
[self.view addGestureRecognizer:pinchGesture];

////捏合手势触发方法
-(void) pinchGesture:(id)sender
{
    UIPinchGestureRecognizer *gesture = sender;
    
    //手势改变时
    if (gesture.state == UIGestureRecognizerStateChanged)
    {
        //捏合手势中scale属性记录的缩放比例
        _imageView.transform = CGAffineTransformMakeScale(gesture.scale, gesture.scale);
    }
    
    //结束后恢复
    if(gesture.state==UIGestureRecognizerStateEnded)
    {
        [UIView animateWithDuration:0.5 animations:^{
            _imageView.transform = CGAffineTransformIdentity;//取消一切形变
        }];
    }
}

//5，拖动手势（PanGestureRecognizer）

//添加拖动手势
UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGesture:)];
[self.view addGestureRecognizer:panGesture];

//拖动手势
-(void) panGesture:(id)sender
{
    UIPanGestureRecognizer *panGesture = sender;
    
    CGPoint movePoint = [panGesture translationInView:self.view];
    
    //做你想做的事儿
}

//6，旋转手势（RotationGestureRecognizer）

//添加旋转手势
UIRotationGestureRecognizer *rotationGesture = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationGesture:)];
[self.view addGestureRecognizer:rotationGesture];

//旋转手势
-(void)rotationGesture:(id)sender
{
    
    UIRotationGestureRecognizer *gesture = sender;
    
    if (gesture.state==UIGestureRecognizerStateChanged)
    {
        _imageView.transform=CGAffineTransformMakeRotation(gesture.rotation);
    }
    
    if(gesture.state==UIGestureRecognizerStateEnded)
    {
        
        [UIView animateWithDuration:1 animations:^{
            _imageView.transform=CGAffineTransformIdentity;//取消形变
        }];
    }
    
}