IOS7手势识别

 
   //添加一个view 给view加上各种手势查看效果
    UIView *gestureTestView = [[UIView alloc]initWithFrame:CGRectMake(100, 100, 200, 200)] ;
    gestureTestView.backgroundColor = [UIColor greenColor];
  //开启UIVIew的事件响应
    gestureTestView.userInteractionEnabled = YES;
    [self.view addSubview:gestureTestView];
    
    //添加单击手势
    UITapGestureRecognizer *tapOne = [[UITapGestureRecognizer alloc]init];
    //设置响应事件的点击次数
    tapOne.numberOfTapsRequired = 1;
    //设置点击手指的个数
    tapOne.numberOfTouchesRequired = 1;
    //添加事件响应函数
    [tapOne addTarget:self action:@selector(tapOneCallBack:)];
    //把手势添加到view上
    [gestureTestView addGestureRecognizer:tapOne];
    
    //添加双击手势
    UITapGestureRecognizer *tapTwo = [[UITapGestureRecognizer alloc]init];
   //点击次数
    tapTwo.numberOfTapsRequired = 2;
    //事件响应函数
    [tapTwo addTarget:self action:@selector(tapTwoCallBack:)];
    //优先响应双击事件，双击时单击事件不识别
    [tapOne requireGestureRecognizerToFail:tapTwo];
    //把手势添加到View
    [gestureTestView addGestureRecognizer:tapTwo];
    
    
    UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc]init];
    [panGesture addTarget:self action:@selector(panCallBack:)];
    [gestureTestView addGestureRecognizer:panGesture];
    
    //创建缩放手势
    UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc]init];
    [pinch addTarget:self action:@selector(pinch:)];
   // pinch.delegate = self;//设不设置代理都可以
    [gestureTestView addGestureRecognizer:pinch];
   
    
    //创建旋转手势
    UIRotationGestureRecognizer *rot = [[UIRotationGestureRecognizer alloc]init];
    [rot addTarget:self action:@selector(rotAction:)];
    //rot.delegate = self;
    [gestureTestView addGestureRecognizer:rot];
    
    // Do any additional setup after loading the view.
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return  YES ;//return NO 可以同时响应多个手势,但是有时会失败，return YES 能准确响应各个事件 ，点击后响应的事件为识别的第一个手势，其他手势无效
    //需要继承代理协议  <UIGestureRecognizerDelegate>
}
-(void)pinch:(UIPinchGestureRecognizer *)pinch1
{
    pinch1.view.transform = CGAffineTransformScale(pinch1.view.transform, pinch1.scale, pinch1.scale);
    pinch1.scale = 1.0;//默认1
}
-(void)rotAction:(UIRotationGestureRecognizer *)rot
{
    rot.view.transform = CGAffineTransformRotate(rot.view.transform, rot.rotation);
    rot.rotation = 0;//默认0;
}

-(void)panCallBack:(UIPanGestureRecognizer *)pan
{

    UIView *gestureView = (UIView *)pan.view;
    
    CGPoint point = [pan translationInView:self.view];
    
    gestureView.frame = CGRectMake(point.x, point.y, 200, 200);
    
}
static bool isFirstTap = true;
-(void)tapOneCallBack:(UITapGestureRecognizer *)tapOne
{
    
       UIView *gestureTestView = (UIView *)tapOne.view;
    if (isFirstTap) {
        gestureTestView.frame = CGRectMake(100, 100,100,100);
        isFirstTap = false;
    }else
    {
        isFirstTap = true;
        gestureTestView.frame = CGRectMake(100, 100, 200, 200);
    }
}

-(void)tapTwoCallBack:(UIGestureRecognizer *)tapTwo
{

    UIView *gestureTestView = (UIView *)tapTwo.view;
    if (isFirstTap) {
        gestureTestView.frame = CGRectMake(100, 100,100,100);
        isFirstTap = false;
    }else
    {
        isFirstTap = true;
        gestureTestView.frame = CGRectMake(100, 100, 200, 200);
    }

}