UIPopOverControl and UIImageView - ios

Question

I have created a UIButton and UIImageView where the button frame is set same as image frame size. What I'm willing to do is once I touch the image it should PopOver. Button is set with action.The problem is that it is displaying only image once I touch it is not Poping up.
What is wrong with my code?
- (void)viewDidLoad {
[super viewDidLoad];
UIImageView *imageView=[[UIImageView alloc] initWithFrame:CGRectMake(10, 10,100, 100)];
imageView.image=[UIImage imageNamed:#"abc.jpg"];
[self.view addSubview:imageView];
imageView.userInteractionEnabled = YES;
UIButton *imageButton = [[UIButton alloc]init];
[imageButton setFrame:CGRectMake(0, 0, 100, 100)];
[imageButton addTarget:self action:#selector(imageTapped:) forControlEvents:UIControlEventTouchUpInside];
[imageView addSubview:imageButton];
[imageButton release];
[imageView release];
}
-(void)imageTapped:(UIButton*)in_sender {
UIViewController *popoverContent = [[UIViewController alloc] init];
CGRect theScreenFrame = [[UIScreen mainScreen] bounds];
popoverContent.view.frame = CGRectMake(theScreenFrame.origin.x, theScreenFrame.origin.y,100, 100);
popoverContent.view.backgroundColor = [UIColor whiteColor];
popoverContent.contentSizeForViewInPopover = CGSizeMake(300, 300);
[popoverContent.view addSubview:imageButton];
if(m_DetailPopover) {
[m_DetailPopover release];
m_DetailPopover = nil;
}
UIPopoverController m_DetailPopover = [[UIPopoverController alloc] initWithContentViewController:popoverContent];
[popoverContent release];
[m_DetailPopover presentPopoverFromRect:imageButton.frame inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}

Answer 1

Might be the problem is a typo in the code:
UIPopoverController *m_DetailPopover = [[UIPopoverController alloc] initWithContentViewController:popoverContent];
Also pls note that you cannot reference imageButton in imageTapped, because
you release it in viewDidLoad.

Answer 2

Dont' add an image view as subview to a button or vice versa. Just assign the image (not the image view) as background image to the button.

Answer 3

Your UIImageView is front of the UIButton, not allowing to get the button action. Why don't you create a custom button with your image?
Do like this:
UIButton *imageButton = [UIButton buttonWithType:UIButtonTypeCustom];
[imageButton setImage:[UIImage imageNamed:#"abc.jpg"]];
[imageButton setFrame:CGRectMake(0, 0, 100, 100)];
[imageButton addTarget:self action:#selector(imageTapped:) forControlEvents:UIControlEventTouchUpInside];
[imageView addSubview:imageButton];
[imageButton release];
[imageView release];
EDIT
UIPopoverController *m_DetailPopover = [[UIPopoverController alloc] initWithContentViewController:popoverContent];
[m_DetailPopover presentPopoverFromRect:imageButton.frame inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
[popoverContent release];