iOS Programmatically Created Button not Working

Question

Hi I have a UIButton that I created programmatically but unfortunately its not working. When I click on the UIButton nothing happens. I don't know what is the problem. Any help would be appreciated.

UIButton *connectedStories = [UIButton buttonWithType:UIButtonTypeRoundedRect];

//set the position of the button
connectedStories.frame = CGRectMake(10, 10, 1900, 30);
connectedStories.backgroundColor = [UIColor whiteColor]; 
[connectedStories setTitle:@"Button" forState:UIControlStateNormal];
[connectedStories setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[connectedStories addTarget:self action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpInside];
[label setText:storyTitle];
[label1 setText:storyDescription];
[contentView addSubview:backGroundImageView];
[contentView addSubview:connectedStories];
[contentView addSubview:label];
[contentView addSubview:label1];

[viewContainer addSubview:contentView];
return contentView;

- (void)buttonClicked
{
  NSLog(@"button clicked");
}

Answer 1

I think labels recives touches instead of button. Add userInteractionEnabled = NO; to your labels.

label.userInteractionEnabled = NO;
label1.userInteractionEnabled = NO;

Answer 2

Try changing the top part of your code to this:

CGRect frame = CGRectMake(10, 10, 1900, 30);
UIButton *connectedStories = [[UIButton alloc] initWithFrame:frame];

//set the position of the button
[connectedStories setBackgroundColor:[UIColor whiteColor]]; 
[connectedStories setTitle:@"Button" forState:UIControlStateNormal];
[connectedStories setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[connectedStories addTarget:nil action:@selector(buttonClicked) forControlEvents:UIControlEventTouchUpInside];

Answer 3

It may very well be the following:

[contentView addSubview:backGroundImageView];
[contentView addSubview:connectedStories];
[contentView addSubview:label];
[contentView addSubview:label1];

im sure you would need to add them in the following order:

[contentView addSubview:backGroundImageView];
[contentView addSubview:label];
[contentView addSubview:label1];
[contentView addSubview:connectedStories];

This is because when you call addSubview: it adds it to end of the receivers list of subViews and the most recent subView appears on top.

Check out the UIView Documentation here

the reason that the Interaction isn't being detected is that you are not passing the touchEvents through to the other subViews as they are being captured by label1 and stopping there.

By default the last subView captures all touch events and doesn't pass them on.

Answer 4

Add the colon in last of your method in selector

[connectedStories addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
    [label setText:storyTitle];

Answer 5

UIButton *custombutton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[custombutton addTarget:self
                 action:@selector(aMethod:)
       forControlEvents:UIControlEventTouchUpInside];
[custombutton setTitle:@"Click" forState:UIControlStateNormal];
custombutton.frame = CGRectMake(80.0, 110.0, 160.0, 40.0);
custombutton.titleLabel.textColor = [UIColor colorWithRed: 2.0f/255.0f green: 155.0f/255.0f blue: 213.0f/255.0f  alpha:1];
 [custombutton setImage:[UIImage imageNamed:@"hh.png"] forState:UIControlStateNormal];
 [view addSubview:custombutton];