iOS9如何隱藏各類bar

轉載自：http://www.cnblogs.com/aBigRoybot/articles/2234487.html

狀態條StatusBar

1     [UIApplication sharedApplication].statusBarHidden = YES;

導航條NavigationBar

1     [self.navigationController setNavigationBarHidden:YES];

TabBar

方法1

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

這個方法有問題，雖然tabBar被隱藏了，可是那片區域變成了一片空白，沒法被其餘視圖使用。

方法2

對於navigationController+tabBarController的結構，能夠在push下一級的childController以前將childController的hidesBottomBarWhenPushed屬性設爲YES。

好比，能夠在childController的初始化方法中作這件事，代碼以下：

 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     else
14     {
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     else
23     {
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 }

時機

 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     // 狀態條11     [UIApplication sharedApplication].statusBarHidden = fullScreen;12     // 導航條13     [self.navigationController setNavigationBarHidden:fullScreen];14     // tabBar的隱藏經過在初始化方法中設置hidesBottomBarWhenPushed屬性來實現。15 }