状态条StatusBar

1     [UIApplication sharedApplication].statusBarHidden = YES;

导航条NavigationBar

1     [self.navigationController setNavigationBarHidden:YES];

TabBar

方法1

1     [self.tabBarController.tabBar setHidden:YES];

这个方法有问题，虽然tabBar被隐藏了，但是那片区域变成了一片空白，无法被其他视图使用。

方法2

对于navigationController+tabBarController的结构，可以在push下一级的childController之前将childController的hidesBottomBarWhenPushed属性设为YES。

比如，可以在childController的初始化方法中做这件事，代码如下：

 1 // The designated initializer.  Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad. 2  3 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { 4     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 5     if (self) { 6         // Custom initialization. 7         self.hidesBottomBarWhenPushed = YES; 8     } 9     return self;10 }

方法3

http://www.azumi.cc/thread-539502-1-1.html

 1 - (void)makeTabBarHidden:(BOOL)hide 2 { 3     if ( [self.tabBarController.view.subviews count] < 2 ) 4     { 5         return; 6     } 7     UIView *contentView; 8     9     if ( [[self.tabBarController.view.subviews objectAtIndex:0] isKindOfClass:[UITabBar class]] )10     {11         contentView = [self.tabBarController.view.subviews objectAtIndex:1];12     }13     else14     {15         contentView = [self.tabBarController.view.subviews objectAtIndex:0];16     }17     //    [UIView beginAnimations:@"TabbarHide" context:nil];18     if ( hide )19     {20         contentView.frame = self.tabBarController.view.bounds;        21     }22     else23     {24         contentView.frame = CGRectMake(self.tabBarController.view.bounds.origin.x,25                                        self.tabBarController.view.bounds.origin.y,26                                        self.tabBarController.view.bounds.size.width,27                                        self.tabBarController.view.bounds.size.height - self.tabBarController.tabBar.frame.size.height);28     }29    30     self.tabBarController.tabBar.hidden = hide;31     //    [UIView commitAnimations];   32 }

时机

 1 - (void)viewWillAppear:(BOOL)animated { 2     [self setFullScreen:YES]; 3 } 4  5 - (void)viewWillDisappear:(BOOL)animated { 6     [self setFullScreen:NO]; 7 } 8  9 - (void)setFullScreen:(BOOL)fullScreen {10     // 状态条11     [UIApplication sharedApplication].statusBarHidden = fullScreen;12     // 导航条13     [self.navigationController setNavigationBarHidden:fullScreen];14     // tabBar的隐藏通过在初始化方法中设置hidesBottomBarWhenPushed属性来实现。15 }