狀態欄的字體為黑色:UIStatusBarStyleDefault狀態欄的字體為白色:UIStatusBarStyleLightContent一、在info.plist中,將View controller-based status bar appearance設為NO狀態欄字體的顏色只由下面的屬性設定,默認為白色:// default is UIStatusBarStyleDefault[UIapplication sharedApplication].statusBarStyle解決個別vc中狀態欄字體顏色不同的辦法1、在info.plist中,將View controller-based status bar appearance設為NO.2、在app delegate中:[UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;3、在個別狀態欄字體顏色不一樣的vc中-(void)viewWillAppear:(BOOL)animated{[UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleDefault;}-(void)viewWillDisappear:(BOOL)animated{[super viewWillDisappear:animated];[UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;}二、在info.plist中,將View controller-based status bar appearance設為YES,或者沒有設置。View controller-based status bar appearance的默認值就是YES。如果View controller-based status bar appearance為YES。則[UIApplication sharedApplication].statusBarStyle 無效。用下面的方法:1、在vc中重寫vc的PReferredStatusBarStyle方法。-(UIStatusBarStyle)preferredStatusBarStyle{return UIStatusBarStyleDefault;}2、在viewDidload中調用:[self setNeedsStatusBarAppearanceUpdate];但是,當vc在nav中時,上面方法沒用,vc中的preferredStatusBarStyle方法根本不用被調用。原因是,[self setNeedsStatusBarAppearanceUpdate]發出后,只會調用navigation controller中的preferredStatusBarStyle方法,vc中的preferredStatusBarStyley方法跟本不會被調用。解決辦法有兩個:方法一:設置navbar的barStyle 屬性會影響status bar 的字體和背景色。如下。//status bar的字體為白色//導航欄的背景色是黑色。self.navigationController.navigationBar.barStyle = UIBarStyleBlack;//status bar的字體為黑色//導航欄的背景色是白色,狀態欄的背景色也是白色。//self.navigationController.navigationBar.barStyle = UIBarStyleDefault;方法二:自定義一個nav bar的子類,在這個子類中重寫preferredStatusBarStyle方法:MyNav* nav = [[MyNav alloc] initWithRootViewController:vc];self.window.rootViewController = nav;@implementation MyNav- (UIStatusBarStyle)preferredStatusBarStyle{UIViewController* topVC = self.topViewController;return [topVC preferredStatusBarStyle];}
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