iOS相应触屏事件代码

概述iOS相应触屏事件代码

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//在一个函数里面（初始化等）里面添加要识别触摸事件的范围    infoVIEw=[[UIVIEw alloc] initWithFrame:CGRectMake(20,100,220,280)];//范围，出了这个范围就检测不到触摸了    infoVIEw.backgroundcolor=[UIcolor bluecolor];    infoVIEw.Alpha=0.6;    [self.vIEw addSubvIEw:infoVIEw];    /******************监视手势控制*****************///有上下左右，我只用到了左右，上下注掉了。    UISwipeGestureRecognizer *recognizer;    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];    [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];    [infoVIEw addGestureRecognizer:recognizer];//    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];//    [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)];//    [self.vIEw addGestureRecognizer:recognizer];//    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];//    [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)];//    [self.vIEw addGestureRecognizer:recognizer];    recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)];    [recognizer setDirection:(UISwipeGestureRecognizerDirectionleft)];    [infoVIEw addGestureRecognizer:recognizer];//触摸事件 的实现函数//滑动事件1-(voID)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer{    //如果往左滑    if(recognizer.direction==UISwipeGestureRecognizerDirectionleft) {        NSLog(@"****************向左滑****************");    }    //如果往右滑    if(recognizer.direction==UISwipeGestureRecognizerDirectionRight) {        NSLog(@"****************向右滑****************");            }   if (recognizer.direction==UISwipeGestureRecognizerDirectionDown){       NSLog(@"****************向下滑****************");    }    if (recognizer.direction==UISwipeGestureRecognizerDirectionUp){      NSLog(@"****************向上滑****************");   }}

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