轉載至：http://blog.csdn.net/riveram/article/details/7291142

狀態條StatusBar

[UIApplication sharedApplication].statusBarHidden = YES;

?導航條NavigationBar

[self.navigationController setNavigationBarHidden:YES];

TabBar

方法1

[self.tabBarController.tabBar setHidden:YES];

這個方法有問題，雖然tabBar被隱藏了，但是那片區域變成了一片空白，無法被其他視圖使用。

方法2

對于navigationController+tabBarController的結構，可以在push下一級的childController之前將childController的hidesBottomBarWhenPushed屬性設為YES。

比如，可以在childController的初始化方法中做這件事，代碼如下：

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

方法3

- (void)makeTabBarHidden:(BOOL)hide
{
if ( [self.tabBarController.view.subviews count] < 2 )
{
return;
}
UIView *contentView;
if ( [[self.tabBarController.view.subviews objectAtIndex:0] isKindOfClass:[UITabBar class]] )
{
contentView = [self.tabBarController.view.subviews objectAtIndex:1];
}
else
{
contentView = [self.tabBarController.view.subviews objectAtIndex:0];
}
//    [UIView beginAnimations:@"TabbarHide" context:nil];
if ( hide )
{
contentView.frame = self.tabBarController.view.bounds;        
}
else
{
contentView.frame = CGRectMake(self.tabBarController.view.bounds.origin.x,
self.tabBarController.view.bounds.origin.y,
self.tabBarController.view.bounds.size.width,
self.tabBarController.view.bounds.size.height - self.tabBarController.tabBar.frame.size.height);
}
self.tabBarController.tabBar.hidden = hide;
//    [UIView commitAnimations];   
}

時機

- (void)viewWillAppear:(BOOL)animated {
[self setFullScreen:YES];
}
- (void)viewWillDisappear:(BOOL)animated {
[self setFullScreen:NO];
}
- (void)setFullScreen:(BOOL)fullScreen {
// 狀態條
[UIApplication sharedApplication].statusBarHidden = fullScreen;
// 導航條
[self.navigationController setNavigationBarHidden:fullScreen];
// tabBar的隱藏通過在初始化方法中設置hidesBottomBarWhenPushed屬性來實現。
}