用于UIScrollView上的UIImageView的UITapGestureRecognizer永远不会调用iOS5

我将UIImageView作为子视图添加到UIScrollView，然后设置图像。用于UIScrollView上的UIImageView的UITapGestureRecognizer永远不会调用iOS5

我试图使用UITapGestureRecognizer。

UITapGestureRecognizer的选择器永远不会在iOS 5中调用（在iOS 6中它是！）。尝试了很多变化。这是我的代码：

UIImageView *imgView = [[UIImageView alloc]initWithFrame:CGRectMake(index*(IMAGE_WIDTH+10), 10.0, IMAGE_WIDTH, IMAGE_HEIGHT)]; 
    [imgView setImageWithURL:[NSURL URLWithString:meal.RecommendedImageURL] placeholderImage:[UIImage imageNamed:@""]]; 
    imgView.layer.cornerRadius = 4; 
    [imgView.layer setMasksToBounds:YES]; 
    [imgView setUserInteractionEnabled:YES]; 
    [imgView setMultipleTouchEnabled:YES]; 

    [scrollView addSubview:imgView]; 

    if (IOS_NEWER_OR_EQUAL_TO_5)  
    { 
     UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTapped:)]; 
     [imgView addGestureRecognizer:tapGestureRecognizer]; 
     tapGestureRecognizer.numberOfTapsRequired = 1; 
     tapGestureRecognizer.enabled = YES; 
     tapGestureRecognizer.delegate = self; 
     [tapGestureRecognizer setCancelsTouchesInView:NO]; 
    }

这是我选择它只是叫iOS5中：

除此之外，我试图setCancelsTouchesInView为是在我的UIScrollView，但它不工作无论是。感谢您的帮助！

来源

2013-05-07 user1526725

仍然没有被调用 – user1526725 2013-05-07 12:19:28

有没有其他手势存在？ – Balu 2013-05-07 12:21:54

nope，这是我唯一加入的 – user1526725 2013-05-07 12:22:59

try to add Gesture in Scrollview then check iskind of class image view 
     UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTapped:)]; 
    [scrollview addGestureRecognizer:tapGestureRecognizer]; 
    tapGestureRecognizer.numberOfTapsRequired = 1; 
    tapGestureRecognizer.enabled = YES; 
    tapGestureRecognizer.delegate = self; 
    [tapGestureRecognizer setCancelsTouchesInView:NO]; 

     - (BOOL)gestureRecognizer:(UITapGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { 
     // test if our control subview is on-screen 
      if ([touch.view isKindOfClass:[UIImageView class]]) { 
      // we touched a button, slider, or other UIControl 
      return YES; 
      }return NO; 
     }

来源

2013-05-07 12:29:24

当我使用你的代码触摸得到承认也当我滚动的图像，我想叫它只有用户轻拍 – user1526725 2013-05-07 12:32:59

so..try上面的代码但..添加手势在你的imageview [imgView addGestureRecognizer：tapGestureRecognizer]; nd也必须设置委托.h – 2013-05-07 12:38:25

仍然没有... scorllview是一个UITableViewCell的内容视图的子视图，也许它有什么？ – user1526725 2013-05-07 12:55:42

实施UIGestureRecognizerDelegate &返回默认值的3种方法：

-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer; 

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer; 

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch;

来源

2013-05-07 12:32:07 Mohith

当我使用您的代码触摸得到承认也当我滚动的图像，我想打电话给它只有用户点击 – user1526725 2013-05-07 12:33:55

好吧，我解决了这个问题很容易！问题是将UITapGestureRecognizer的委托设置为self。当我删除委托=自我，它开始工作:) 感谢您的帮助

来源

2013-05-07 13:06:38 user1526725

用于UIScrollView上的UIImageView的UITapGestureRecognizer永远不会调用iOS5

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