Proper way to hide status bar on iOS, with animation and resizing root view

For those that are trying to implement this with view controller-based status bar appearance, you need to implement the prefersStatusBarHidden method in your view controller

 - (BOOL)prefersStatusBarHidden{    // If self.statusBarHidden is TRUE, return YES. If FALSE, return NO.    return (self.statusBarHidden) ? YES : NO;}

And then, in your button click method:

- (void) buttonClick:(id)sender{    // Switch BOOL value    self.statusBarHidden = (self.statusBarHidden) ? NO : YES;    // Update the status bar    [UIView animateWithDuration:0.25 animations:^{        [self setNeedsStatusBarAppearanceUpdate];    }];}

To set the animation style, you use this:

-(UIStatusBarAnimation)preferredStatusBarUpdateAnimation{    return UIStatusBarAnimationSlide;}

And to customize the style:

- (UIStatusBarStyle)preferredStatusBarStyle{    return UIStatusBarStyleLightContent;}

This works fine and has nothing hard coded.

CGRect appFrame = [[UIScreen mainScreen] applicationFrame];[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide];[UIView animateWithDuration:0.25 animations:^{    self.navigationController.navigationBar.frame = self.navigationController.navigationBar.bounds;    self.view.window.frame = CGRectMake(0, 0, appFrame.size.width, appFrame.size.height);}];

You can present and then dismiss modal view controller to hide status bar correctly

- (void)toggleStatusBar {    BOOL isStatusBarHidden = [[UIApplication sharedApplication] isStatusBarHidden];    [[UIApplication sharedApplication] setStatusBarHidden:!isStatusBarHidden];    UIViewController *vc = [[UIViewController alloc] init];    [self presentViewController:vc animated:NO completion:nil];    [self dismissViewControllerAnimated:NO completion:nil];    [vc release];}

I used this code in the "willAnimateRotationToInterfaceOrientation" method for landscape orientation and everything is working correctly. But I don't know if it will work with animation.