ios开发中的6种手势识别的实现.docx

学IT技能上我学院网ios开发中的6种手势识别的实现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 code2、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：UIGestureRecognizerStateFailed3、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 code6、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=CGAffineTran