iOS开发之手势识别汇总

iOS开发之手势识别汇总

iOS开发中手势识别有六种：

轻击手势（TapGestureRecognizer）,

轻扫手势 （SwipeGestureRecognizer）,

长按手势（LongPressGestureRecognizer）,

拖动手势（PanGestureRecognizer）,

捏合手势（PinchGestureRecognizer）,

旋转手势（RotationGestureRecognizer）,

1，轻击手势（TapGestureRecognizer）

UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)];
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:(UITapGestureRecognizer *)sender
{
//your code
}

2，长按手势（LongPressGestureRecognizer）

UILongPressGestureRecognizer *longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressGesture:)];
//设置长按时间
longPressGesture.minimumPressDuration = 0.5;
[self.view addGestureRecognizer:longPressGesture];

//长按手势触发方法
-(void)longPressGesture:(id)sender
{
UILongPressGestureRecognizer *longPress = sender;
if (longPress.state == UIGestureRecognizerStateBegan)
{
//your code
}
}

说明：长按手势的常用状态如下

开始：UIGestureRecognizerStateBegan

改变：UIGestureRecognizerStateChanged

结束：UIGestureRecognizerStateEnded

取消：UIGestureRecognizerStateCancelled

失败：UIGestureRecognizerStateFailed

3，轻扫手势（SwipeGestureRecognizer）

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

UISwipeGestureRecognizer *swipeGestureLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGesture:)];
//设置轻扫的方向
swipeGestureLeft.direction = UISwipeGestureRecognizerDirectionLeft; //向左
[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
}

if (swipe.direction == UISwipeGestureRecognizerDirectionRight)
{
//向右轻扫
}
}

4，捏合手势（PinchGestureRecognizer）

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）

UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGesture:)];
[self.view addGestureRecognizer:panGesture];

//拖动手势触发方法
-(void) panGesture:(id)sender
{
UIPanGestureRecognizer *panGesture = sender;
CGPoint movePoint = [panGesture translationInView:self.view];
//your code
}

6，旋转手势（RotationGestureRecognizer）

UIRotationGestureRecognizer *rotationGesture = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationGesture:)];
[self.view addGestureRecognizer:rotationGesture];

//旋转手势触发方法
-(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
}];
}
}

本文出处刚刚在线：http://www.superqq.com/blog/2015/01/14/ioskai-fa-zhi-shou-shi-shi-bie-hui-zong/