UIGestureRecognizer手勢操作，uigesturerecognizer

UIGestureRecognizer手勢操作，uigesturerecognizer

UIGestureRecognizer類,用來檢測,識別使用者使用裝置時所用的手勢,定義了所有手勢的基本行為.以下是UIGestureRecognizer子類,喲關於處理具體的使用者手勢行為。

單擊手勢

單擊手勢UITapGestureRecognizerUITapGestureRecognizer *singleTap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(singleTap:)];    [self.view addGestureRecognizer:singleTap];//單擊事件-(void)singleTap:(UITapGestureRecognizer *)tapgestrue{    NSLog(@"單擊");}

雙擊手勢

UITapGestureRecognizerUITapGestureRecognizer *doubleTap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(doubleTap:)];    doubleTap.numberOfTapsRequired=2;    [self.view addGestureRecognizer:doubleTap];    //區別單擊雙擊手勢    [singleTap requireGestureRecognizerToFail:doubleTap];//雙擊點擊事件-(void)doubleTap:(UITapGestureRecognizer *)taggestrue{    NSLog(@"雙擊");}

撥動手勢

UISwipeGestureRecognizer *swipeGesture=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipe:)];    //設定輕掃方向,預設向右    swipeGesture.direction=UISwipeGestureRecognizerDirectionDown;    [self.view addGestureRecognizer:swipeGesture];//輕掃事件-(void)swipe:(UISwipeGestureRecognizer *)swipeGesture{    NSLog(@"撥動手勢");}

//平移

UIPanGestureRecognizer *panGesture=[[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(pan:)];    [self.view addGestureRecognizer:panGesture];   //平移事件-(void)pan:(UIPanGestureRecognizer *)pan{    CGPoint point=[pan locationInView:self.view];    NSLog(@"%@",NSStringFromCGPoint(point));}

//長按手勢

 UILongPressGestureRecognizer *longPressGesture=[[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(longPress:)];    longPressGesture.minimumPressDuration=2;    [self.view addGestureRecognizer:longPressGesture];//長按手勢事件-(void)longPress:(UILongPressGestureRecognizer *)longPress{    //長按離開時一會調用一次,所以需要設定手勢狀態    if(longPress.state==UIGestureRecognizerStateEnded)    {        return;    }    NSLog(@"長按超過兩秒");}    

//旋轉手勢

UIRotationGestureRecognizer *rotation=[[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector(rotation:)];    [self.view addGestureRecognizer:rotation];//旋轉事件-(void)rotation:(UIRotationGestureRecognizer *)rotation{    //根據旋轉的弧度獲得角度    float degree=rotation.rotation*(180/M_PI);    NSLog(@"%f",degree);}