iOS 改变App状态栏颜色为白色

默认状态栏为黑色，对于某些App不是很美观，变成白色很简单，只需要两个步骤。

1.在Info.plist中添加新项目，View controller-based status bar appearance，Boolean值为No.

2.在AppDelegate的- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions方法中添加

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:NO];

2017.04.11更新

Swift版本为 

UIApplication.shared.statusBarStyle = UIStatusBarStyle(rawValue: 1)!

或者

UIApplication.shared.statusBarStyle = UIStatusBarStyle.init(rawValue: 1)!