iOS 手势详解

前言

iOS中有很多常用的手势，比如单击、双击、缩放、拖拽等等。接下来，我为大家来一一介绍一下这些手势的使用。

正文

单击

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(processgestureReconizer:)];  
singleTap.numberOfTapsRequired = 1;    
[self.view addGestureRecognizer:singleTap];

双击

UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(processgestureReconizer:)];    
doubleTap.numberOfTapsRequired = 2;    
[self.view addGestureRecognizer:doubleTap];

左滑

UISwipeGestureRecognizer *leftSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(processgestureReconizer:)];    
leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;    
[self.view addGestureRecognizer:leftSwipe];

右滑

UISwipeGestureRecognizer *rightSwipe = [[UISwipeGestureRecognizer alloc]                                            initWithTarget:self action:@selector(processgestureReconizer:)];    
rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;    
[self.view addGestureRecognizer:rightSwipe];

拖拽

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

缩放

UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(processgestureReconizer:)];    
[self.view addGestureRecognizer:pinch];

旋转

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

长按

UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(processgestureReconizer:)];    
longPress.minimumPressDuration = 2.0;    
[self.view addGestureRecognizer:longPress];