标签：blog http os strong io art for re
UIGestureRecognizer是一个抽象类，定义了所有手势的基本行为，它有6个子类处理具体的手势：
1.UITapGestureRecognizer （任意手指任意次数的点击）
// 点击次数
numberOfTapsRequired
// 手指个数
numberOfTouchesRequired
- UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] init];
- [tapGestureRecognizer addTarget:self action:@selector(gestureRecognizerHandle:)];
- [tapGestureRecognizer setNumberOfTapsRequired:2];
- [tapGestureRecognizer setNumberOfTouchesRequired:2];
- [self.view addGestureRecognizer:tapGestureRecognizer];
- [tapGestureRecognizer release];
2.UIPinchGestureRecognizer （两个手指捏合动作）
// 手指捏合，大于1表示两个手指之间的距离变大，小于1表示两个手指之间的距离变小
scale
// 手指捏合动作时的速率（加速度）
velocity
- UIPinchGestureRecognizer *pinchGestureRecognizer = [[UIPinchGestureRecognizer alloc] init];
- [pinchGestureRecognizer addTarget:self action:@selector(gestureRecognizerHandle:)];
- [self.view addGestureRecognizer:pinchGestureRecognizer];
- [pinchGestureRecognizer release];
3.UIPanGestureRecognizer (摇动或者拖拽)
// 最少手指个数
minimumNumberOfTouches
// 最多手指个数
maximumNumberOfTouches
- UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] init];
- [panGestureRecognizer addTarget:self action:@selector(gestureRecognizerHandle:)];
- [panGestureRecognizer setMinimumNumberOfTouches:1];
- [panGestureRecognizer setMaximumNumberOfTouches:5];
- [self.view addGestureRecognizer:panGestureRecognizer];
- [panGestureRecognizer release];
4.UISwipeGestureRecognizer (手指在屏幕上滑动操作手势)
// 滑动手指的个数
numberOfTouchesRequired
// 手指滑动的方向 （Up,Down,Left,Right）
direction
- UISwipeGestureRecognizer *swipeGestureRecognizer = [[UISwipeGestureRecognizer alloc] init];
- [swipeGestureRecognizer addTarget:self action:@selector(gestureRecognizerHandle:)];
- [swipeGestureRecognizer setNumberOfTouchesRequired:2];
- [swipeGestureRecognizer setDirection:UISwipeGestureRecognizerDirectionRight];
- [self.view addGestureRecognizer:swipeGestureRecognizer];
- [swipeGestureRecognizer release];
5.UIRotationGestureRecognizer (手指在屏幕上旋转操作)
// 旋转方向，小于0为逆时针旋转手势，大于0为顺时针手势
rotation
// 旋转速率
velocity
- UIRotationGestureRecognizer *rotationGestureRecognizer = [[UIRotationGestureRecognizer alloc] init];
- [rotationGestureRecognizer addTarget:self action:@selector(gestureRecognizerHandle:)];
- [self.view addGestureRecognizer:rotationGestureRecognizer];
- [rotationGestureRecognizer release];
6.UILongPressGestureRecognizer (长按手势)
// Default is 0. The number of full taps required before the press for gesture to be recognized
numberOfTapsRequired
// 需要长按的手指的个数
numberOfTouchesRequired
// 需要长按的时间，最小为0.5s
minimumPressDuration
// 手指按住允许移动的距离
allowableMovement
- UILongPressGestureRecognizer *longPressGestureRecognizer = [[UILongPressGestureRecognizer alloc] init];
- [longPressGestureRecognizer addTarget:self action:@selector(gestureRecognizerHandle:)];
- [longPressGestureRecognizer setMinimumPressDuration:1.0f];
- [longPressGestureRecognizer setAllowableMovement:50.0];
- [self.view addGestureRecognizer:longPressGestureRecognizer];
- [longPressGestureRecognizer release];
iOS手势UIGestureRecognizer,布布扣,bubuko.com
iOS手势UIGestureRecognizer
标签：blog http os strong io art for re
原文地址：http://www.cnblogs.com/yjg2014/p/3866685.html
