ios 在 UIImage 上添加点击手势
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Adding Tap Gesture on UIImage
提问by Crisn
I am trying to make clickable UIImage, where the user can click it then it'll animate...
我正在尝试制作可点击的 UIImage，用户可以在其中点击它然后它会动画......
i am working with the UIScrollVIew that's why i used the UITapGesture instead of touchesBegan, and it seems that UIGestureRecognizer is not compatible with UIImage...
我正在使用 UIScrollVIew 这就是为什么我使用 UITapGesture 而不是 touchesBegan 的原因，而且 UIGestureRecognizer 似乎与 UIImage 不兼容...
am i right?
我对吗？
i keep receiving this error message
我不断收到此错误消息
receiver type 'UIImage' for instance message does not declare a method with selector 'addGestureRecognizer'
例如消息的接收器类型“UIImage”未声明带有选择器“addGestureRecognizer”的方法
is there any other way?
还有其他方法吗？
回答by Pooja Jalan
You have to add TapGesture in UIImageView not UIImage
你必须在 UIImageView 中添加 TapGesture 而不是 UIImage
imgView.userInteractionEnabled = YES;
UITapGestureRecognizer *tapGesture1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)];
tapGesture1.numberOfTapsRequired = 1;
[tapGesture1 setDelegate:self];
[imgView addGestureRecognizer:tapGesture1];
[tapGesture1 release];
You can response to the tap with the defined selector and do stuff there
您可以使用定义的选择器响应点击并在那里执行操作
- (void) tapGesture: (id)sender
{
//handle Tap...
}
回答by jasondinh
You have to add the gesture to UIImageView, not UIImage
您必须将手势添加到 UIImageView，而不是 UIImage
回答by mariusLAN
You can simply add a TapGestureRecognizer to a UIImageView. You have to use a UIImageView because gesture recognizer are only allowed to be added to views.
您可以简单地将 TapGestureRecognizer 添加到 UIImageView。你必须使用 UIImageView 因为手势识别器只允许添加到视图中。
UIView *someView = [[UIView alloc] initWithFrame:CGRectZero]; UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction:)]; tapRecognizer.numberOfTapsRequired = 1; [someView addGestureRecognizer:tapRecognizer];
You can response to the tap with the defined selector and do stuff there
您可以使用定义的选择器响应点击并在那里执行操作
- (void)tapAction:(UITapGestureRecognizer *)tap
{
// do stuff
}
回答by Sarah
Try with UIButtoninstead of UIIMageand make the UIButtontype custom. And on clicking the same you can show the animation.
尝试使用UIButton而不是UIIMage并使UIButton类型custom。单击相同的按钮，您可以显示动画。
