手势操作

import "AppDelegate.h"

@interface AppDelegate ()

@property (nonatomic ,retain)UIImageView *imageView;

@end

@implementation AppDelegate
// 自定义按钮的回调
-(void)customBtn:(UIButton*)sender{
NSLog(@"************");
}

• (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
  // Override point for customization after application launch.
  self.window.backgroundColor = [UIColor whiteColor];
  [self.window makeKeyAndVisible];
  [self.window setRootViewController:[[UIViewController alloc]init]];

  // 自定义按钮
  CustomButton *customBtn = [[CustomButton alloc]initWithFrame:CGRectMake(50, 30, 80, 50)];
  [customBtn setTitle:@"我是假冒的"];
  [customBtn addTarget:self action:@selector(customBtn:) forControlEvents:customButtonTouchUpInside];
  [self.window addSubview:customBtn];

  // 初始化一个视图（响应者）来承载手势
  UIView *gestureView = [[UIView alloc]initWithFrame:CGRectMake(100, 100, 100, 100)];
  // 当前视图放置在屏幕中
  gestureView.center = self.window.center;
  gestureView.backgroundColor = [UIColor redColor];
  [self.window addSubview:gestureView];

  // 初始化textField(回收键盘所用)
  UITextField *textField = [[UITextField alloc]initWithFrame:CGRectMake(150, 150, 100, 50)];
  textField.placeholder = @"请输入。。。。";
  textField.tag = 1000;
  [self.window addSubview:textField];

    //  初始化UIImageView
  

  UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(150, 200, 150, 200)];
  imageView.tag = 3000;

  // imageView动图
  NSMutableArray *mArray = [NSMutableArray array];
  for (int i = 1 ; i < 12 ; i++) {
  [mArray addObject:[UIImage imageNamed:[NSString stringWithFormat:@"%d.tiff",i]]];
  }
  imageView.animationImages = mArray;
  // 设置动画执行的时长(单位为秒)
  imageView.animationDuration = 1.5;
  // 开始动画
  [imageView startAnimating];
  // 动画结束
  [imageView stopAnimating];

  imageView.image = [UIImage imageNamed:@"11.png"];
  // UIImageView 的用户交互默认是关闭的，要想使他处理触摸事件，我们需要手动打开它
  imageView.userInteractionEnabled = YES;
  [self.window addSubview:imageView];

  // 创建开启、结束动画的按钮
  UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
  btn.frame = CGRectMake(150, 0, 80, 50);
  [btn setTitle:@"开启/停止" forState:UIControlStateNormal];
  [btn addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
  [self.window addSubview:btn];

  // 轻拍手势
  UITapGestureRecognizer *tapGR = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];

  // 设置触控对象（触控点个数）
  [tapGR setNumberOfTouchesRequired:1];
  // 设置轻拍的次数（点击次数）
  [tapGR setNumberOfTapsRequired:2];
  // 给创建好的视图添加手势(一个视图可以添加多个手势，但是一个手势只能添加到一个视图上面)
  // [gestureView addGestureRecognizer:tapGR];
  // 点击屏幕空白处回收键盘（取消textField的第一响应者）
  // [self.window addGestureRecognizer:tapGR]; // 回收键盘所用
  // 给图片添加手势
  [imageView addGestureRecognizer:tapGR];

  // 捏合手势
  UIPinchGestureRecognizer *pinchGR = [[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector(pinchAction:)];
  [imageView addGestureRecognizer:pinchGR];
  pinchGR.delegate = self;

  // 旋转手势
  UIRotationGestureRecognizer *rotationGR = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotationAction:)];
  [imageView addGestureRecognizer:rotationGR];

    //  平移手势
  

// UIPanGestureRecognizer *panGR = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(panAction:)];
// [imageView addGestureRecognizer:panGR];

//  屏幕边缘轻扫手势
UIScreenEdgePanGestureRecognizer *screenEdgePanGR = [[UIScreenEdgePanGestureRecognizer alloc]initWithTarget:self action:@selector(screenEdgePanAction:)];
[self.window addGestureRecognizer:screenEdgePanGR];

//  长按手势
UILongPressGestureRecognizer *longPressGR = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPressAction:)];
[self.window addGestureRecognizer:longPressGR];

//  轻扫手势
UISwipeGestureRecognizer *swipeGR = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeAction:)];
[self.window addGestureRecognizer:swipeGR];
return YES;

};

pragma mark -- 手势的代理方法

// 使得多个手势可以同时相应
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
// 返回值为YES时，当执行一个手势的操作的时候，也可以执行其他手势的操作
return YES;
}

// 轻拍手势的回调方法
-(void)tapAction:(UITapGestureRecognizer*)sender{
// 可以根据手势得到它当前所作用的视图
// UIImageView imageView = (UIImageView)sender.view;
// imageView.frame = CGRectMake(50, 50, 50, 50);

NSLog(@"我轻拍了gestureView");

// // 得到textField（注意类型强转）
// UITextField tagTextField = (UITextField)[self.window viewWithTag:1000];
// // 回收键盘 （取消第一响应者）
// [tagTextField resignFirstResponder];
}

// 捏合手势的回调方法
-(void)pinchAction:(UIPinchGestureRecognizer*)sender{

//  通过捏合手势得到缩放比例
float scale = sender.scale;
NSLog(@"%.1f",scale);
    
//  得到该手势作用的视图
UIView *view = sender.view;
//  2D仿射变换函数中 的缩放函数来实现视图的放大缩小
//  是在原有基础上改变当前视图
// <#CGAffineTransform t#>参数：现有视图的transform值
//  CGFloat sx 参数：x轴上的缩放比例
//  <#CGFloat sy#>参数：y轴上的缩放比例

// view.transform = CGAffineTransformMakeScale(0.5, 0.5); // 在视图最初（初始状态）的transform状态上改变，不管执行多少次，都是以最初的transform状态为基础来改变的
view.transform = CGAffineTransformScale(view.transform, scale, scale);
// 每次捏合动作完毕之后，上次捏合值复原，使它每次都是从100%开始缩放
sender.scale = 1;
NSLog(@"捏合手势");
}

// 旋转手势的回调方法
-(void)rotationAction:(UIRotationGestureRecognizer*)sender{
// 通过该手势得到旋转角度
float rotation = sender.rotation;

//  得到该手势作用的视图
UIView *view = sender.view;
//  通过2D仿射变换函数中的旋转函数来使得当前视图旋转
//  <#CGAffineTransform t#>参数：现有视图的transform值（矩阵）
//  <#CGFloat angle#>参数：旋转角度
view.transform = CGAffineTransformRotate(view.transform, rotation);
    //  旋转之后复原
sender.rotation = 0;

}

// 平移手势的回调方法
-(void)panAction:(UIPanGestureRecognizer*)sender{
// 得到该手势作用的视图
UIView *view = sender.view;
// 得到我们在视图上移动的偏移量
CGPoint currentPoint = [sender translationInView:view.superview];
// 通过2D仿射变换函数中与位移有关的函数实现视图位置变化
view.transform = CGAffineTransformTranslate(view.transform, currentPoint.x , currentPoint.y);
// 复原
[sender setTranslation:CGPointZero inView:view.superview];
NSLog(@"平移手势");
}

// 屏幕边缘轻扫手势回调方法
-(void)screenEdgePanAction:(UIScreenEdgePanGestureRecognizer*)sender{
NSLog(@"屏幕边缘轻扫手势");
}

// 长按手势的回调方法
-(void)longPressAction:(UILongPressGestureRecognizer*)sender{
// 设置当前长按最小的时长
sender.minimumPressDuration = 1.5;
// 设置允许移动的范围
sender.allowableMovement = 2;
NSLog(@"长按手势");
}

// 轻扫手势
-(void)swipeAction:(UISwipeGestureRecognizer*)sender{
sender.numberOfTouchesRequired =1;
sender.direction = UISwipeGestureRecognizerDirectionLeft;
NSLog(@"向左轻扫手势");
}

// 动画开关按钮的回调方法
-(void)buttonAction:(UIButton*)sender{
UIImageView imageView = (UIImageView)[self.window viewWithTag:3000];
if (imageView.isAnimating) {
[imageView stopAnimating];
[imageView setImage:[UIImage imageNamed:@"11.png"]];
}else{
imageView.image = nil;
[imageView startAnimating];
}
}