在单击手势时按钮单击不起作用 [英] Button click not working when in presence of single Tap gesture

问题描述

我的视图层次结构如下

MyViewController-> ScrollView(通过IB添加)-> ImageView(+缩放)--->在图像视图上添加了按钮(通过代码添加)

MyViewController --> ScrollView(added via IB) --> ImageView (+ zooming there) ---> button added on image View(added via code)

imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"map.png"]];
[scroll addSubview:imageView];

UIButton *myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];

myButton.frame = CGRectMake(660, 120, 40, 40);

[myButton setTitle:@"10" forState:UIControlStateNormal];

[myButton addTarget:self action:@selector(asiaPressed:) forControlEvents:UIControlEventTouchUpInside];

[myButton setEnabled:YES];
[imageView addSubview:myButton];

后来在视图控制器中，我将选择器定义为

later on in view controller, i defined selector as

-(void) asiaPressed:(id)sender{
NSLog(@"asiaPressed clicked");

}

但是它永远不会进入选择器.

But it is never going inside selector..

请帮助...我想这是一个非常基本的错误.

Pls help...i guess it is very basic error..

预先感谢

推荐答案

UIImageView的userInteractionEnabled属性默认情况下设置为NO，因此它(及其子视图)不接收触摸事件.您需要将该属性手动设置为是":

UIImageView has userInteractionEnabled property set to NO by default so it (and its subviews) does not receive touch events. You need to set that property to YES manually:

...
imageView.userInteractionEnabled = YES;
...

P.S.您也曾在问题标题中提到手势识别器，但是还没有发布任何代码-因此，如果它出现，它也可能会引起问题，但是问题很可能是我上面所描述的

P.S. You also mention gesture recognizer in question title, however have not posted any code with it - so if it present it may also cause the problems, but the problem is most likely is what I described above

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