UIButton inside a UIView not working after UIView is animated

Question

I have seen many questions in this forum which gives answer to this topic "UIButton inside a UIView, when animated doesn't work", but after having tried out the answers like

a) UIViewAnimationOptionAllowUserInteraction to the options
b) subView.setUserInteractionEnabled = YES
c) [button addTarget:self action:@selector(buttonPressed) forControlEvents:UIControlEventTouchUpInside];

none of them is working for me :-(

Here is the scenario. App is in landscape mode and a UIView called menuView is placed at x=480,y=0. Its height=200 and width=150. So, when I tap the button on the top right corner, the following code is executed

- (IBAction)showMenu {
    [menuView setUserInteractionEnabled:YES];
    [optionsButton setUserInteractionEnabled:YES];
    [UIView animateWithDuration:0.5 delay:0.0 options:UIViewAnimationCurveEaseOut |  UIViewAnimationOptionAllowUserInteraction
                     animations:^{
                         self.view.frame = CGRectOffset(self.view.frame, 0, 200);
                     }
                     completion:NULL];
}

Output?: View is appearing, but optionsButton inside the menuView is not clickable. I hooked up to an event, did an NSLog(@"Options button clicked"), but nothing happens :-(

Please tell me what I am doing wrong?

Update: When I place the subview that is "menuView" inside the self.view, then upon running and click the optionsButton, I get the NSLog message. Only if I specify the origin.x of menuView to be 480 and above, it doesn't work.

Answer 1

In my case missing a constraint on the height of the containing view caused the view height to be 0. Buttons were visible, below the view, but untouchable.