iOS常见的手势

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#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    // 创建一个imageView添加手势    UIImageView *imageView = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds];    imageView.image = [UIImage imageNamed:@"text.jpg"];    // UIImageView默认交互是关闭的    imageView.userInteractionEnabled = YES;    [self.view addSubview: imageView];    [imageView release];    ////////////////////////////////////////////////////////////////    // 以下为每一种类型的手势的添加方法,为避免冲突,每次可以打开一种,验证其效果.    ////////////////////////////////////////////////////////////////        // 手势识别器这个类，是一个抽象的类    // 自己本身不实现什么具体功能，具体功能都是有其子类完成的        // 轻拍手势//    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(actionTap:)];//    // 用几个手指 轻拍//    tap.numberOfTouchesRequired = 2;//    // 拍几次//    tap.numberOfTapsRequired = 1;//    // 把首饰添加到要点击的视图上//    [imageView addGestureRecognizer:tap];//    [tap release];    // 长按手势//    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(actionLongPress:)];//    // 最短长按时间//    longPress.minimumPressDuration = 1;//    // 添加到视图上//    [imageView addGestureRecognizer:longPress];//    //    [longPress release];      // 旋转手势//    UIRotationGestureRecognizer *rotation = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(actionRotation:)];//    // 添加到视图上//    [imageView addGestureRecognizer:rotation];//    [rotation release];      // 捏合手势（缩放扩大手势）//    UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(actionPinch:)];//   // 直接添加到视图上//    [imageView addGestureRecognizer:pinch];//    [pinch release];  // 平移手势//    UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(actionPan:)];//    [imageView addGestureRecognizer:pan];//    [pan release];  // 轻扫手势//    UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(actionSwipe:)];//    // 设置左右扫//    swipe.direction = UISwipeGestureRecognizerDirectionLeft;//    [imageView addGestureRecognizer:swipe];//    [swipe release];   // 边缘轻扫识别器 默认的 你不加他也有    UIScreenEdgePanGestureRecognizer *ScreenEdge = [[UIScreenEdgePanGestureRecognizer alloc] initWithTarget:self action:@selector(actionScreenEdge:)];    // 设置从屏幕边缘 那边去扫    ScreenEdge.edges = UIRectEdgeLeft;    [imageView addGestureRecognizer:ScreenEdge];    [ScreenEdge release];}// 长按手势触发的方法- (void)actionLongPress:(UILongPressGestureRecognizer *)longPress{        // 长按 换张图片    UIImageView *imageView = (UIImageView *)longPress.view;    imageView.image = [UIImage imageNamed:@"tap.jpg"];    }// 旋转手势触发方法- (void)actionRotation:(UIRotationGestureRecognizer *)rotation{    // transform 形变属性    // 描述一下这个方法    // 第一个参数 传入要制造那个视图的形变属性    // 第二个参数 传入 手势的弧度    rotation.view.transform = CGAffineTransformRotate(rotation.view.transform, rotation.rotation);    // 把弧度重置    rotation.rotation = 0;}// 捏合手势- (void)actionPinch:(UIPinchGestureRecognizer *)pinch{    // 形变属性控制 捏合    // 第二个参数 按捏的刻度比例 形变    pinch.view.transform = CGAffineTransformScale(pinch.view.transform, pinch.scale, pinch.scale);    // 重置比例    pinch.scale = 1;        }// 平移- (void)actionPan:(UIPanGestureRecognizer *)pan{    // 这个点 以手指触摸到屏幕那一刻 即为 0，0点    CGPoint p = [pan translationInView:pan.view];    pan.view.transform = CGAffineTransformTranslate(pan.view.transform, p.x, p.y);    // 重置点 让它以为每次都是刚开始触发    [pan setTranslation:CGPointMake(0, 0) inView:pan.view];        NSLog(@"%@", NSStringFromCGPoint(p));}// 轻扫手势- (void)actionSwipe:(UISwipeGestureRecognizer *)swipe{    NSLog(@"左扫了");}- (void)actionTap:(UITapGestureRecognizer *)tap{    NSLog(@"请拍拍");}// 屏幕边缘识别器- (void)actionScreenEdge:(UIScreenEdgePanGestureRecognizer *)screenEdgePan{    // 刚一扫就触发 判断状态    if(screenEdgePan.state == UIGestureRecognizerStateBegan)    {    NSLog(@"扫出来一次，挺费劲");    }}