1、点击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！");
}
2、长按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！");
}
3、轻扫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！");
}
如果涉及到2个以上方向的手势最好添加多个UISwipeGestureRecognizer 对象并设置不同的方向，不要通过下面方式用符号|来连接:
swip.direction=UISwipeGestureRecognizerDirectionLeft | UISwipeGestureRecognizerDirectionRight
4、拖动
第一步：添加视图
_view=[[UIView alloc] initWithFrame:CGRectMake(50,250,300,200)];
[_view setBackgroundColor:[UIColor redColor]];
[self.view addSubview:_view];
第二步：添加手势
UIPanGestureRecognizer *pan=[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(paned:)];
[_view addGestureRecognizer:pan];
第三步：实现方法
- (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];
}
5、旋转
第一步：添加视图
_view=[[UIView alloc] initWithFrame:CGRectMake(50,250,300,200)];
[_view setBackgroundColor:[UIColor redColor]];
[self.view addSubview:_view];
第二步：添加手势
UIRotationGestureRecognizer * roate=[[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotate:)];
[_view addGestureRecognizer:roate];
roate.delegate=self;
第三步：实现方法
- (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;
}
6、捏合
第一步：添加视图
_view=[[UIView alloc] initWithFrame:CGRectMake(50,250,300,200)];
[_view setBackgroundColor:[UIColor redColor]];
[self.view addSubview:_view];
第二步：添加手势
UIPinchGestureRecognizer * pich=[[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(piches:)];
[_view addGestureRecognizer:pich];
pich.delegate=self;
第三步：实现方法
- (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1pich.scale=1;
}
【补充】如果需要同时响应多个手势需要重写代理方法
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{returnYES;
}
作者：杰瑞教育
出处：http://www.cnblogs.com/jerehedu/
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