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POUIView transition animation not showing subviews
 

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    <p>I'm using a container view as a superview to two subviews. I want to "flip" one subview to another subview. The first subview happens to be blank and the second subview is a <code>UILabel</code> that has some text.</p> <p>The flip is happening but I do not see my subviews. </p> <p>I want to transition <code>blankLabelView</code> to <code>labelToTransition</code>. Any ideas? Thanks!</p> <p>The code:</p> <pre><code>-(void)viewDidLoad { CGRect labelFrame = CGRectMake(100.0, 217.0, 125.0, 34.0); self.labelContainerView = [[UIView alloc] initWithFrame:labelFrame]; // If I change the background color to something other than clear // I can see that this view is flipping, otherwise it appears that // nothing happens. self.labelContainerView.backgroundColor = [UIColor clearColor]; [self.someSuperview addSubview:self.labelContainerView]; UILabel *label = [[UILabel alloc] initWithFrame:labelFrame]; label.backgroundColor = [UIColor clearColor]; label.lineBreakMode = UILineBreakModeWordWrap; label.numberOfLines = 2; label.textAlignment = UITextAlignmentCenter; self.labelToTransition = label; UIView *blankView = [[UIView alloc] initWithFrame:labelFrame]; blankView.backgroundColor = [UIColor clearColor]; self.blankLabelView = blankView; } -(void)viewWillAppear { self.labelToTransition.text = @"some text from a model object"; [self.labelContainerView addSubview:self.blankLabelView]; } -(void)flipViewAnimation { UIView *containerView = self.labelContainerView; [UIView transitionWithView:containerView duration:1.0 options:UIViewAnimationOptionTransitionFlipFromBottom animations:^{ [self.blankLabelView removeFromSuperview]; [containerView addSubview:self.labelToTransition]; } completion:NULL]; } </code></pre>
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