Question

我有点卡在这一个上，UIButton内有UIViewController，但由于某种原因，UIButton没有响应。

_downloadButton = [[DownloadButtonViewController alloc] init];
_downloadButton.issue = _issue;
_downloadButton.view.frame = CGRectMake(self.descriptionLabel.frame.origin.x, self.descriptionLabel.frame.origin.y + self.descriptionLabel.frame.size.height + 20, 200, 27);
[self.view addSubview:_downloadButton.view];

UIButton *tmpButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
tmpButton.titleLabel.text = @"test";
tmpButton.frame = CGRectMake(_downloadButton.view.frame.origin.x, _downloadButton.view.frame.origin.y - 30, _downloadButton.view.frame.size.width, _downloadButton.view.frame.size.height);
[self.view addSubview:tmpButton];

要查看是否有任何重叠，我添加了另一个UIButton稍微低一点，即使我将它添加到相同位置仍然有效。

我的应用程序的结构是这样的

- UIViewController
    - UIScrollView
        - ThumbCover
            - UIImageView
            - DownloadButton --> NOT WORKING
            - UIButton --> WORKING
            - UILabel
        - ThumbCover
            - UIImageView
            - DownloadButton --> NOT WORKING
            - UIButton --> WORKING
            - UILabel
        - ThumbCover
            - UIImageView
            - DownloadButton --> NOT WORKING
            - UIButton --> WORKING
            - UILabel
        - ThumbCover
            - UIImageView
            - DownloadButton --> NOT WORKING
            - UIButton --> WORKING
            - UILabel

DownloadButton只是一个简单的UIButton，没什么特别的。

Answer 1

您已将viewcontroller视图的高度指定为27

_downloadButton.view.frame = CGRectMake(self.descriptionLabel.frame.origin.x, self.descriptionLabel.frame.origin.y + self.descriptionLabel.frame.size.height + 20, 200, 27);

如果你的按钮的框架在其父视图的框架之外（viewcontroller的视图），上面提到的框架，它将不会响应你的触摸

Answer 2

你真的为按钮设定了一些目标吗？（在提供的代码中询问，我看不到它！）否则，它当然不会响应。

Answer 3

我把你的代码改成了两行覆盖，所以试试这段代码......

_downloadButton = [[DownloadButtonViewController alloc] init];
_downloadButton.issue = _issue;
_downloadButton.view.frame = CGRectMake(self.descriptionLabel.frame.origin.x, self.descriptionLabel.frame.origin.y + self.descriptionLabel.frame.size.height + 20, 200, 27);

UIButton *tmpButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
tmpButton.titleLabel.text = @"test";
tmpButton.frame = CGRectMake(_downloadButton.view.frame.origin.x, _downloadButton.view.frame.origin.y - 30, _downloadButton.view.frame.size.width, _downloadButton.view.frame.size.height);
[self.view addSubview:tmpButton];
[self.view addSubview:_downloadButton.view];

希望这能帮到你......

：）

Answer 4

就我而言，似乎我的动画过渡尚未完成。我忘了将completeTransition:Bool放在animateTransition:context方法的末尾，因此我的视图控制器中的所有按钮都被禁用，而不是userinteractionEnabled。

Answer 5

看着你这段代码

_downloadButton = [[DownloadButtonViewController alloc] init];

不是说我的意思是你的命名方式错了，但我怀疑你的DownloadButtonViewController是否是UIButton。只是为了确保打开你的 DownloadButtonViewController.h 并检查你是否有这个

@interface DownloadButtonViewController : UIButton

Answer 6

replace this line.. 

tmpButton.titleLabel.text = @"test";

作为

[tmpButton setTitle: @"test" forState:UIControlStateNormal];

UIVut里面的UIButton不可点击

6 个答案: