“Hide” the Tab Bar When Pushing a View

Question

The New York Times iPhone application has a Tab Bar with five tab bar items. When you select the Latest tab, the app shows the title and abstract/summary in a UITableView.

Answer 1

I have a view that needs to optionally (depending on some other state) show the navigation controller toolbar. This is the solution I used to show & hide the toolbar (with animation) when the view appears & disappears via navigation. It sounds like what you might be after.

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    // Show the nav controller toolbar if needed
    if (someBool)
        [self.navigationController setToolbarHidden:NO animated:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];

    // Hide the nav controller toolbar (if visible)
    [self.navigationController setToolbarHidden:YES animated:animated];
}