/* To set item label text attributes use the appearance selectors available on the superclass, UIBarItem.

     */

    //UI_APPEARANCE_SELECTOR当后面带有这个宏的时候一般都可以使用appearance来配置

     //全局配置UITabBarItem的文字属性

    [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor colorWithRed:63/255.0 green:59/255.0 blue:117/255.0 alpha:1],NSFontAttributeName:[UIFont boldSystemFontOfSize:20]} forState:UIControlStateSelected];

    

    

    /*

      设置状态栏样式,如果需要通过Application去设置样式的话,

      需要在info.plist文件中增加一配置“view Controller-base status bar appreance的值为NO”

     [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;

     */

    //设置statusBarStyle注意全局配置时,需要在plist里的设置

    [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;

    

    //设置UINavigationBar的背景图片

     [[UINavigationBar appearance] setBackgroundImage:[UIImage  getImageWithImage:[UIImage imageNamed:@"bg"]] forBarMetrics:UIBarMetricsDefault];

   //设置UINavigationBar上title的文字属性

    [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor]}];

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