Status bar的顯示和隱藏

• 如果想要的效果是啟動(dòng)時(shí)隱藏，進(jìn)入軟件之后顯示
  • 可以在設(shè)置中勾選Hide status bar選項(xiàng)
• View controller-based status bar appearance
  • NO - 代表status bar 的控制權(quán)限給了UIApplication
  • YES(默認(rèn)值) - 代表控制器的優(yōu)先級(jí)比UIApplication高，而且這個(gè)時(shí)候使用UIApplication控制status bar 將沒有效果

最簡(jiǎn)單的方法(我自己認(rèn)為)

• 在info.plist中配置View controller-based status bar appearance為NO
• 全部頁(yè)面都隱藏
  • 在AppDelegate的application:didFinishLaunchingWithOptions:方法中設(shè)置
  • [UIApplication sharedApplication].statusBarHidden = YES;
• 有的頁(yè)面需要隱藏

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [UIApplication sharedApplication].statusBarHidden = YES;
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [UIApplication sharedApplication].statusBarHidden = NO;
}

• 有的頁(yè)面需要改變狀態(tài)欄顏色

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleDefault;
}

控制器自己控制狀態(tài)欄

• 當(dāng)info.plist中沒有對(duì)View controller-based status bar appearance設(shè)置，默認(rèn)值是YES

/**
 讓當(dāng)前控制器對(duì)應(yīng)的狀態(tài)欄改變顏色，是白色還是黑色
 */
- (UIStatusBarStyle)preferredStatusBarStyle
{
    return UIStatusBarStyleLightContent;
}

/**
 讓當(dāng)前控制器對(duì)應(yīng)的狀態(tài)欄顯示或者隱藏
 */
- (BOOL)prefersStatusBarHidden
{
    return YES;
}