UIButton没有在imageView中调用事件答案

【问题标题】：UIButton not calling event in imageViewUIButton没有在imageView中调用事件
【发布时间】：2013-10-30 04:19:15
【问题描述】：

我有imageview，我在其中添加UIButton，当我单击按钮时它会显示按钮，它不会调用按钮的操作。这是我正在使用的代码，我还设置了imageView.userInteraction=enabled，但它仍然没有调用操作。

UIImageView*myImageView=[[UIImageView alloc] initWithFrame:CGRectMake(75,10,200,150)];


myImageView.image=thumbnail;

myImageView.userInteractionEnabled=YES;


[scrollView addSubview:myImageView];

UIButton*playButton=[[UIButton alloc] initWithFrame:CGRectMake(20,20,128,128)];

//[playButton setImage:[UIImage imageNamed:@"playIconPlay.png"] forState:UIControlStateNormal];

[playButton.buttonType:UIButtonTypeRoundedRect];

scrollView.userInteractionEnabled=YES;
myImageView.userInteractionEnabled=YES;
[playButton setTitle:@"Play Click" forState:UIControlStateNormal];

[playButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];


[playButton addTarget:self action:@selector(playButtonAction) forControlEvents:UIControlEventTouchUpInside];


myImageView.userInteractionEnabled=YES;

[myImageView addSubview:playButton];

【问题讨论】：

添加这一行 [myImageView bringSubviewToFront: playButton];然后尝试..
这个也不行
imageView 我用作背景很大，这就是我使用按钮的原因
@QueenSolutions：用buttontype初始化按钮，然后设置frame。无需为 imageView 设置 userInteractionEnabled。
如果你的imageview不在前面，那么如何将触摸事件传递给它？将您的图像视图放在前面或至少将播放按钮放在前面

标签： ios uiimageview uibutton

【解决方案1】：

你可以在 UIView 中添加 UIImageView 和 UIButton，希望对你有所帮助。

UIView* view = [[UIView alloc] initWithFrame:CGRectMake(75, 10, 200, 150)];

UIImageView*myImageView=[[UIImageView alloc] initWithFrame:CGRectMake(0,0,200,150)];


myImageView.image=thumbnail;


[view addSubview:myImageView];

[scrollView addSubview:view];

UIButton*playButton=[[UIButton alloc] initWithFrame:CGRectMake(20,20,128,128)];

//[playButton setImage:[UIImage imageNamed:@"playIconPlay.png"] forState:UIControlStateNormal];

[playButton.buttonType:UIButtonTypeRoundedRect];

[playButton setTitle:@"Play Click" forState:UIControlStateNormal];

[playButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];


[playButton addTarget:self action:@selector(playButtonAction) forControlEvents:UIControlEventTouchUpInside];


myImageView.userInteractionEnabled=YES;

[view addSubview:playButton];

【讨论】：

【解决方案2】：

UIButton*playButton = [UIButton buttonWithType:UIButtonTypeCustom];

试试这个..它会完美地工作..

[playButton setImage:[UIImage imageNamed:@"playIconPlay.png"] forState:UIControlStateNormal];

[playButton setFrame:CGRectMake(20,20,128,128)];

[playButton setTitle:@"Play Click" forState:UIControlStateNormal];

[playButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

[playButton addTarget:self action:@selector(playButtonAction) forControlEvents:UIControlEventTouchUpInside];


[scrollView addSubview:playButton];
[scrollView bringSubviewToFront:playButton];

【讨论】：

scoolView 检查命名？
@Palmyra：使用scrollView查看上面的女王解决方案。
@TaminlKing:[scrollView addSubview:playButton]; [scoolView 带来SubviewToFront:playButton];检查命名这两行是不同的

【解决方案3】：

在将您的 Button 添加为子视图之前，请将 exclusiveTouch 属性设置为 YES。

playButton.exclusiveTouch = YES
[myImageView addSubview:playButton];

希望它会帮助你....享受编码..!!!

【讨论】：