IOS中的手势详解

    UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(click)];        //设置当前需要点击的次数    [tap setNumberOfTapsRequired:1];    //设置当前需要触发事件的手指数量[tap setNumberOfTouchesRequired:2];//设置当前代理tap.delegate=self;[_view addGestureRecognizer:tap];//触发方法- (void) click{    NSLog(@"当前视图被点击了！ ");}

UILongPRessGestureRecognizer * longPress=[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress)];//设置当前长按最小的时长longPress.minimumPressDuration=2;//设置允许的移动范围 [longPress setAllowableMovement:2];[_view addGestureRecognizer:longPress];//触发方法- (void) longPress{    NSLog(@"长按事件触发！ ");}

UISwipeGestureRecognizer * swip=[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipMethod)];    //往左边方向  swip.direction=UISwipeGestureRecognizerDirectionLeft  ;    //往右边方向  swip.direction=UISwipeGestureRecognizerDirectionRight  ;    //往上面方向    swip.direction=UISwipeGestureRecognizerDirectionUp  ;    //往下面方向   swip.direction=UISwipeGestureRecognizerDirectionDown  ;    [_view addGestureRecognizer:swip];        //触发方法    - (void) swipMethod{        NSLog(@"轻扫事件触发！ ");}

swip.direction=UISwipeGestureRecognizerDirectionLeft  | UISwipeGestureRecognizerDirectionRight  

_view=[[UIView alloc] initWithFrame:CGRectMake(50, 250, 300, 200)];[_view setBackgroundColor:[UIColor redColor]];[self.view addSubview:_view];

UIPanGestureRecognizer *pan=[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(paned:)];[_view addGestureRecognizer:pan];

- (void) paned:(UIPanGestureRecognizer *) pan{        //获取移动的大小    CGPoint point= [pan translationInView:pan.view];    //更改视图的中心点坐标    CGPoint points=_view.center;    points.x+=point.x;    points.y+=point.y;    _view.center=points;    //每次都清空一下消除坐标叠加    [pan setTranslation:CGPointZero inView:pan.view];}

_view=[[UIView alloc] initWithFrame:CGRectMake(50, 250, 300, 200)];[_view setBackgroundColor:[UIColor redColor]];[self.view addSubview:_view];

UIRotationGestureRecognizer * roate=[[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotate:)];    [_view addGestureRecognizer:roate];roate.delegate=self;

- (void) rotate:(UIRotationGestureRecognizer *) rote{   //获取当前旋转的度数   CGFloat rotation= rote.rotation;    //通过仿射变换实现旋转  _view.transform=CGAffineTransformRotate(_view.transform, rotation);    //防止旋转叠加需要清零    rote.rotation=0;}

_view=[[UIView alloc] initWithFrame:CGRectMake(50, 250, 300, 200)];[_view setBackgroundColor:[UIColor redColor]];[self.view addSubview:_view];

UIPinchGestureRecognizer * pich=[[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(piches:)];[_view addGestureRecognizer:pich];pich.delegate=self;

- (void) piches:(UIPinchGestureRecognizer *) pich{    //获取比例    CGFloat scale=pich.scale;    //通过仿射变换实现缩放    _view.transform=CGAffineTransformScale(_view.transform, scale, scale);    //防止比例叠加需要置为1    pich.scale=1; }

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{    return YES;}