iOS手势

iOS点击手势UITapGestureRecognizer :

- (void)viewDidLoad {[super viewDidLoad];UIImageView *imgview = [[UIImageView alloc]initWithFrame:CGRectMake(80, 200, 150, 150)];imgview.image = [UIImage imageNamed:@"6.jpg"];//注意开启用户交互imgview.userInteractionEnabled = YES;[self.view addSubview:imgview];UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(imageVIewtap:)]; // tap.delegate = self; //协议//点击次数 单击还是双击tap.numberOfTapsRequired = 2;//设置属性 一个手指头还是多个手指头点击tap.numberOfTouchesRequired = 1;//添加[imgview addGestureRecognizer:tap]; }//触发手势点击事件 -(void)imageVIewtap:(UIGestureRecognizer *)tap{self.view.backgroundColor=[UIColor greenColor]; } //默认为单击UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(viewTapClick:)];tap.delegate = self;[view addGestureRecognizer :tap];
iOS清扫手势 UISwipeGestureRecognizer：

- (void)viewDidLoad {[super viewDidLoad];_imgview=[[UIImageView alloc]initWithFrame:CGRectMake(80, 200, 200, 200)];_imgview.image=[UIImage imageNamed:@"6.jpg"];_imgview.userInteractionEnabled=YES;UISwipeGestureRecognizer *pan = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(imageVIewtap:)];pan.delegate = self;pan.direction = UISwipeGestureRecognizerDirectionRight;//设置属性 不设置默认为1pan.numberOfTouchesRequired = 1;//添加手势到视图上[_imgview addGestureRecognizer:pan];[self.view addSubview:_imgview]; }//判断手势移动方向 -上-下-左-右 -(void)imageVIewtap:(UISwipeGestureRecognizer *)tap{if (tap.direction == UISwipeGestureRecognizerDirectionLeft) {NSLog(@"left");}else if(tap.direction == UISwipeGestureRecognizerDirectionRight) {NSLog(@"right");}/*UISwipeGestureRecognizerDirectionRight = 1 << 0,UISwipeGestureRecognizerDirectionLeft = 1 << 1,UISwipeGestureRecognizerDirectionUp = 1 << 2,UISwipeGestureRecognizerDirectionDown = 1 << 3*/ } iOS移动手势 UIPanGestureRecognizer：
- (void)viewDidLoad {[super viewDidLoad];_imgview = [[UIImageView alloc]initWithFrame:CGRectMake(80, 200, 200, 200)];_imgview.image = [UIImage imageNamed:@"6.jpg"];_imgview.userInteractionEnabled = YES;UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(imageVIewtap:)];pan.delegate=self;//设置属性pan.minimumNumberOfTouches = 1;[_imgview addGestureRecognizer:pan];[self.view addSubview:_imgview]; }-(void)imageVIewtap:(UIGestureRecognizer *)tap{self.view.backgroundColor=[UIColor greenColor];if (tap.state==UIGestureRecognizerStateBegan) {NSLog(@"开始移动");//缩放图片self.imgview.transform=CGAffineTransformMakeScale(0.5, 0.5);}else if (tap.state==UIGestureRecognizerStateChanged){NSLog(@"移动中");self.imgview.center=[tap locationInView:self.view];}else if(tap.state==UIGestureRecognizerStateEnded){NSLog(@"移动完成");self.imgview.transform=CGAffineTransformIdentity;} }
iOS长按手势 UILongPressGestureRecognizer：
- (void)viewDidLoad {[super viewDidLoad];_imgview = [[UIImageView alloc]initWithFrame:CGRectMake(80, 200, 200, 200)];_imgview.image = [UIImage imageNamed:@"6.jpg"];_imgview.userInteractionEnabled = YES;UILongPressGestureRecognizer *pan = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(imageVIewtap:)];pan.delegate=self;//设置属性pan.minimumPressDuration = 2;[_imgview addGestureRecognizer:pan];[self.view addSubview:_imgview]; }-(void)imageVIewtap:(UILongPressGestureRecognizer *)tap{if (tap.state == UIGestureRecognizerStateEnded) {NSLog(@"长按手势完毕");}else{NSLog(@"识别了点击手势");} }iOS旋转手势 UIRotationGestureRecognizer： - (void)viewDidLoad {[super viewDidLoad];_imgview = [[UIImageView alloc]initWithFrame:CGRectMake(80, 200, 200, 200)];_imgview.image = [UIImage imageNamed:@"6.jpg"];_imgview.userInteractionEnabled = YES;UIRotationGestureRecognizer *pan = [[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(imageVIewtap:)];pan.delegate = self;[_imgview addGestureRecognizer:pan];[self.view addSubview:_imgview]; }-(void)imageVIewtap:(UIRotationGestureRecognizer *)tap{tap.view.transform = CGAffineTransformRotate(tap.view.transform, tap.rotation);tap.rotation = 0.0; }

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