UIView doesn't resize to full screen when hiding the nav bar & tab bar

Question

I have an app that has a tab bar & nav bar for normal interaction. One of my screens is a large portion of text, so I allow the user to tap to go full screen (sort of l

Answer 1

I had similar issue. As Harry mentioned it's a reason of Navigation Controller that is inner controller of Tab Bar Controller. Found another way how to redraw your view and have correct frame., In your controller add following:

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

    // Here you can make your tabBarControlelr.view.hidde = true or use any animation that hides UITabBar. I made
    [TabBarController setTabBarHidden:YES];

    self.navigationController.view.frame = CGRectMake(self.navigationController.view.frame.origin.x, self.navigationController.view.frame.origin.y, self.navigationController.view.frame.size.width, self.navigationController.view.frame.size.height + 50);
    [self.navigationController.view setNeedsLayout];

 }

And here is how I hide it. I can make it directly calling method of TabBarControlelr or class method wrapper:

+ (void)setTabBarHidden:(BOOL)hidden
{
    AppDelegate *delegate = [UIApplication sharedApplication].delegate;
    TabBarController *tabBarController = (TabBarController *) delegate.window.rootViewController;

    if ([tabBarController isKindOfClass:[TabBarController class]]) {
        [tabBarController setTabBarHidden:hidden];
    }
}


- (void)setTabBarHidden:(BOOL)hidden
{
    if (self.tabBar.hidden == hidden) {
        return;
    }

    if (hidden == NO) {
        self.tabBar.hidden = hidden;
    }

    [UIView animateWithDuration:0.15 animations:^{
        self.tabBar.frame = CGRectOffset(self.tabBar.frame, 0, ( hidden ? 50 : -50 ));
    } completion:^(BOOL finished) {
        self.tabBar.hidden = hidden;
    }];
}