iOS 隐藏自定义tabbar

iOS  隐藏自定义tabbar

-(void)viewWillAppear:(BOOL)animated
{

    NSArray *array=self.tabBarController.view.subviews;

    UIView *view=array[];

    view.frame=CGRectMake(, [UIScreen mainScreen ].bounds.size.height, [UIScreen mainScreen ].bounds.size.width, );

    [UIView commitAnimations];

}

- (void)viewWillDisappear:(BOOL)animated
{

    NSArray *array=self.tabBarController.view.subviews;

    UIView *view=array[];

    view.frame=CGRectMake(, [UIScreen mainScreen ].bounds.size.height-, [UIScreen mainScreen ].bounds.size.width, );

    [UIView commitAnimations];
}