一般来说默认情况的status bar颜色是根据你的NavBar的tint color自动产生的。

下面有一种方法可以更改Status bar Color

1.再工程的Summary中设置Status Bar -> Style 为 Black Transculent

2.然后再AppDelegate.m中修改application: didFinishLaunchingWithOptions:方法即可

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window.backgroundColor=[UIColor yellowColor];
    return YES;
}