问题描述
我添加了两个 uiimageview，一个在另一个 subview uiview 上(imageview1,imageview2).在第一个视图中，顶部 uiimageview 被隐藏(imageview2)，而在第二个视图中，底部 imageview 被隐藏(imageview1).
I added two uiimageviews, one on another subview uiview (imageview1,imageview2). In the first view the top uiimageview is hidden(imageview2) and in the second view the bottom imageview is hidden(imageview1).
分配点击手势:
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(oneTap:)];
UITapGestureRecognizer *singleTap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(oneTap:)];
将两个 uiimageview 的用户交互设置为 YES.
Set user interaction for both uiimageview to YES.
[singleTap setNumberOfTapsRequired:1];
[singleTap1 setNumberOfTapsRequired:1];
//给uiimageview添加手势
// adding gesture to uiimageview
分别添加点击手势识别器和选择器.
Add tap gesture recognizer and selector respectively.
[imageview1 addGestureRecognizer:singleTap];
[imageview2 addGestureRecognizer:singleTap1];
但我的水龙头无法识别.
But my taps are not recognized.
谁能告诉我错在哪里?
推荐答案
在添加手势识别器之前尝试设置setUserInteractionEnabled:YES.
Try setting setUserInteractionEnabled:YES before adding gesture recognizer.
[imageview1 setUserInteractionEnabled:YES]
[imageview2 setUserInteractionEnabled:YES]
[imageview1 addGestureRecognizer:singleTap];
[imageview2 addGestureRecognizer:singleTap1];
更新:
在您发表评论后，我建议您在检测到点击事件之前将您的观点置于顶部.因为父 imageView 在上面并捕获了这些点击.
After the comment you have made I suggest you bring your views to the top before detecting the tap event. Because parent imageView is above and catches these taps.
[yourparentview bringSubviewToFront:imageview1];
[yourparentview bringSubviewToFront:imageview2];
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