Hide status bar programmatically with animation

-(void)hideStatusbar{ 

      [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade]; 

      [UIView beginAnimations:@"Statusbar hide" context:nil]; 

      [UIView setAnimationDuration:0.5]; 

      [self.view setFrame:CGRectMake(0, 0, 320, 480)]; 

      [UIView commitAnimations]; 

} 

- (void)viewDidLoad { 

      [super viewDidLoad]; // hideStatusbar called after 2 seconds 

      

      [self performSelector:@selector(hideStatusbar) withObject:nil 

         afterDelay:2.0];

}