SoccerZZM 2012-07-20
From: http://www.cnblogs.com/lovecode/articles/2234557.html
状态条Status Bar
[UIApplication sharedApplication].statusBarHidden = YES;
或者
// iOS3.2+支持 [application setStatusBarHidden:NO withAnimation:UIStatusBarAnimationFade];
statusBarHidden属性支持在iOS2.0+,setStatusBarHidden:animated:方法在iOS3.2中开始取消了,而采用了setStatusBarHidden:withAnimation:方法。
上述方法只能实现在程序跳过loading(即启动画面)的时候才能隐藏状态栏。如果想要在启动画面开始即隐藏状态栏,则要修改app的info.plist文件,新增UIStatusBarHidden键(Status bar is initially hidden),其值是YES。
同理:对于状态栏的颜色改变,也要分别从两处着手,代码[[UIApplicationsharedApplication] setStatusBarStyle:UIStatusBarStyleBlackOpaque];仅仅改变了启动画面之后的视图上的状态栏,要让App应用在启动画面之时就改变默认颜色,则要修改info.plist文件,新增UIStatusBarStyle键(Status bar style),其值有Opaque black style、Transparent black style和默认的Gray style。
导航条Navigation Bar
[self.navigationController setNavigationBarHidden:YES];
选项卡TabBar
方法一:
[self.tabBarController.tabBar setHidden:YES];
此方法的问题:虽然tabBar栏被隐藏了,但该区域成一片空白区,无法被其他视图使用。
方法二: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 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 2{ 3self=[superinitWithNibName:nibNameOrNilbundle:nibBundleOrNil]; 4if(self){ 5//Custominitialization. 6self.hidesBottomBarWhenPushed=YES; 7} 8returnself; 9 }
方法三:
1 - (void)makeTabBarHidden:(BOOL)hide 2{ 3if([self.tabBarController.view.subviewscount]<2) 4{ 5return; 6} 7UIView*contentView; 8 9if([[self.tabBarController.view.subviewsobjectAtIndex:0]isKindOfClass:[UITabBarclass]]) 10{ 11contentView=[self.tabBarController.view.subviewsobjectAtIndex:1]; 12} 13else 14{ 15contentView=[self.tabBarController.view.subviewsobjectAtIndex:0]; 16} 17//[UIViewbeginAnimations:@"TabbarHide"context:nil]; 18if(hide) 19{ 20contentView.frame=self.tabBarController.view.bounds; 21} 22else 23{ 24contentView.frame=CGRectMake(self.tabBarController.view.bounds.origin.x, 25self.tabBarController.view.bounds.origin.y, 26self.tabBarController.view.bounds.size.width, 27self.tabBarController.view.bounds.size.height-self.tabBarController.tabBar.frame.size.height); 28} 29 30self.tabBarController.tabBar.hidden=hide; 31//[UIViewcommitAnimations]; 32 }
时机
1 - (void)viewWillAppear:(BOOL)animated 2{ 3[selfsetFullScreen:YES]; 4} 5-(void)viewWillDisappear:(BOOL)animated 6{ 7[selfsetFullScreen:NO]; 8} 9-(void)setFullScreen:(BOOL)fullScreen 10{ 11//状态条 12[UIApplicationsharedApplication].statusBarHidden=fullScreen; 13//导航条 14[self.navigationControllersetNavigationBarHidden:fullScreen]; 15//tabBar的隐藏通过在初始化方法中设置hidesBottomBarWhenPushed属性来实现 16 }