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一，用storyboard给控件添加手势识别
1.用storyboard添加手势识别，和添加一个Button的步骤一样，首先我们得找到相应的手势，把手势识别的控件拖到我们要添加手势的控件中，截图如下：
2.给我们拖出的手势添加回调事件，和给Button回调事件没啥区别的，在回调方法中添加要实现的业务逻辑即可，截图如下：
二，纯代码添加手势识别
1.轻击手势（TapGestureRecognizer）的添加
初始化代码TapGestureRecongnizer的代码如下：
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//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]; |
在回调方法中添加相应的业务逻辑：
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//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）
初始化代码：
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//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]; |
在对应的回调方法中添加相应的方法（当手势开始时执行）：
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//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]; }} |
代码说明：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）
在初始化轻扫手势的时候得指定轻扫的方向，上下左右。 如果要要添加多个轻扫方向，就得添加多个轻扫手势，不过回调的是同一个方法。
添加轻扫手势，一个向左一个向右，代码如下：
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//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]; |
回调方法如下：
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//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）
捏合手势初始化
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//添加捏合手势UIPinchGestureRecognizer *pinchGesture = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchGesture:)];[self.view addGestureRecognizer:pinchGesture]; |
捏合手势要触发的方法（放大或者缩小图片）：
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////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）
拖动手势的初始化
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//添加拖动手势UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGesture:)];[self.view addGestureRecognizer:panGesture]; |
拖动手势要做的方法（通过translationInView获取移动的点，和TouchesMoved方法类似）
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//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）
旋转手势的初始化
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//添加旋转手势UIRotationGestureRecognizer *rotationGesture = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationGesture:)];[self.view addGestureRecognizer:rotationGesture]; |
旋转手势调用的方法：
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//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 }]; } } |
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原文地址：http://www.cnblogs.com/leipDao/p/5664326.html
