I want to add a UILabel to the bottom toolbar of all UIViewControllers pushed and popped by the navigation controller:
- (void)init
{
//Bottom toolbar label
self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0 , 11.0f, 320, 21.0f)];
[self.titleLabel setFont:[UIFont fontWithName:@"Helvetica-Bold" size:14]];
[self.titleLabel setBackgroundColor:[UIColor clearColor]];
[self.titleLabel setTextColor:[UIColor whiteColor]];
[self.titleLabel setText:@"Selected Comics: 0"];
[self.titleLabel setTextAlignment:UITextAlignmentLeft];
}
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
UIBarButtonItem *labelButton = [[UIBarButtonItem alloc] initWithCustomView:self.titleLabel];
UIBarButtonItem *flex = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil] autorelease];
[viewController setToolbarItems:[NSArray arrayWithObjects:labelButton, flex, sortButton, nil] animated:animated];
[labelButton release];
}
However, after I've pushed and popped a view controller, the label appears and immediately disappears. The other button (sortButton) remains visible instead.
What should I do to keep the label visible ?
thanks
Your problem is this: self.titleLabel.
Multiple labelButton instances are all referencing that view, and when you set the toolbar itmes (animated == YES I assume), titleLabel is getting removed from its superview where you don't expect it.
Create a new titleLabel for each usage and your problem will go away.
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