UIButton里面的UIImageView不响应tap [英] UIButton inside UIImageView does not respond to taps
问题描述
我有一个滚动视图,它有一个图像视图和一个图像作为子视图,图像视图有一个 UIButton
作为其子视图之一。问题是,我不能点击按钮。我可以看到按钮,但我不能点击它。
I have a scroll view, which has an image view with an image as a subview, and the image view has a UIButton
as one of its subviews. The problem is, I am not able to click on the button. I can SEE the button, but I cannot tap on it.
有人能告诉我这是什么,我在搞乱?任何帮助,非常感谢!
Can someone tell me what is it that I am messing up? Any help is greatly appreciated! Thanks!
下面是代码:
scrollView = [[UIScrollView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"img.jpg"]];
scrollView.delegate = self;
self.view = scrollView;
// add invisible buttons
[self addInvisibleButtons];
[scrollView addSubview:imageView];
addInvisibleButtons
具有以下代码: p>
addInvisibleButtons
has the following code:
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:@selector(buttonHandler) forControlEvents:UIControlEventAllEvents];
[button setTitle:@"point" forState:UIControlStateNormal];
button.frame = CGRectMake(0.0, 0.0, 40.0, 40.0);
[self.imageView addSubview:button];
推荐答案
UIImageView
有 userInteractionEnabled
设置为 NO
/ false
默认。
UIImageView
has userInteractionEnabled
set to NO
/ false
by default.
您要将按钮作为子视图添加到图像视图。您应该将其设置为 YES
/ true
。
You are adding the button as a subview to the image view. You should set it to YES
/ true
.
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