1.首先是設(shè)置info.plist 文件：

將View controller-based status bar appearance 的值設(shè)置為NO。

2.在AppDelegate.m 的方法中如下設(shè)置,默認(rèn)會(huì)顯示黑色等于為你的app狀態(tài)欄設(shè)置一個(gè)主顏色

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {

????//設(shè)置全局狀態(tài)欄字體顏色為黑色???

?????[UIApplicationsharedApplication].statusBarStyle =UIStatusBarStyleDefault;

????//設(shè)置全局狀態(tài)欄字體顏色為白色

????// [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;

????returnYES;

}

3.在需要設(shè)置為白色的地方添加如下代碼：

[UIApplicationsharedApplication].statusBarStyle =UIStatusBarStyleLightContent;

4.在需要變回黑色的地方添加如下代碼：

[UIApplicationsharedApplication].statusBarStyle =UIStatusBarStyleDefault;

例如你想將一個(gè)控制器的狀態(tài)欄的字體顏色設(shè)為白色代碼如下：

#pragma mark - 設(shè)置狀態(tài)欄顏色

-(void)viewWillAppear:(BOOL)animated{? ?

?????[superviewWillAppear:animated];? ?

?????[UIApplicationsharedApplication].statusBarStyle =UIStatusBarStyleLightContent;? ?

?}

-(void)viewWillDisappear:(BOOL)animated{? ? ??

????? [superviewWillDisappear:animated];? ? ? ?

?????[UIApplicationsharedApplication].statusBarStyle =UIStatusBarStyleDefault;?

?}