iOS8 横屏状态栏不显示解决方法

解决方法：

1.在plist文件中将 View controller-based status bar appearance 设置为NO

2.在application:didFinishLaunchingWithOptions:中添加下面代码

[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationNone];

[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];