UIImageView内的UIButton不响应点击

Question

我有一个滚动视图,它有一个图像视图,图像作为子视图,图像视图有一个UIButton子视图.问题是,我无法点击按钮.我可以看到按钮,但我无法点击它.

有人能告诉我,我搞砸了什么？任何帮助是极大的赞赏!谢谢!

以下是代码:

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:

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];

Answer 1

UIImageView已默认userInteractionEnabled设置为NO/ false.

您将按钮作为子视图添加到图像视图.你应该将它设置为YES/ true.