iOS 修改状态栏颜色

1.首先，苹果把UIViewControllerBasedStatusBarAppearance默认的值设为YES，是有他的道理的，新系统下，苹果希望我们的viewcontroller去控制status bar，也就是说，我们大多数的界面应该是统一的，偶尔一些viewcontroller需要status bar特殊控制的，完全交给当前的viewcontroller来做。

2.放在不同的controller去改变每个页面的状态栏颜色

#pragma mark - Status Bar

Where UIStatusBarStyleDefault is dark content, for use on light backgrounds andUIStatusBarStyleLightContent is for light content, for use on dark backgrounds.

You might need to call [self setNeedsStatusBarAppearanceUpdate]; in the viewDidLoad to inform the system of a change.

- (void)viewDidLoad {

[super viewDidLoad];

[self setNeedsStatusBarAppearanceUpdate];

}

 
- (UIStatusBarStyle)preferredStatusBarStyle  
{  
    return UIStatusBarStyleDefault;  //默认黑色
    return UIStatusBarStyleLightContent; //白色
}  
  
- (BOOL)prefersStatusBarHidden  
{  
    return _isFullScreen;  
}  
  
- (UIStatusBarAnimation)preferredStatusBarUpdateAnimation  
{  
    return UIStatusBarAnimationSlide;  
}

3.刷新

[UIView animateWithDuration:.3 animations:^{  
            if (ISIOS7) {  
                [self setNeedsStatusBarAppearanceUpdate];  
            }  
}];

二，设置全局的所有页面状态栏颜色

2. 在infoPlist里设置UIViewControllerBasedStatusBarAppearance为NO，然后在代码里添加：

[application setStatusBarStyle:UIStatusBarStyleLightContent];