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:
View Code1 - (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 }