ios设置导航栏属性

在MJAppDelegate类中的BOOL)application:(UIApplication ​)application didFinishLaunchingWithOptions:(NSDictionary ​)launchOptions 方法设置

​// 设置状态栏的样式​

application.statusBarStyle = UIStatusBarStyleLightContent;

application.statusBarHidden = NO;

控制器设置title

// 设置标题文字颜色
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSForegroundColorAttributeName] = [UIColor whiteColor];
attrs[NSFontAttributeName] = [UIFont systemFontOfSize:16];
[navBar setTitleTextAttributes:attrs];

判断当前ios系统版本大于7.0

([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0)