NavigationBar 背景颜色，字体颜色

// 设置状态栏颜色

    [application setStatusBarStyle:UIStatusBarStyleLightContent];

    

    // 设置导航栏

    [[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];

    

    if (kIS_IOS7) {

        [[UINavigationBar appearance] setBarTintColor:KNavibarColor];

    } else {

        [[UINavigationBar appearance] setBackgroundImage:[UIImage Color:KNavibarColor Size:CGSizeMake(0.5, 44)]

                                           forBarMetrics:UIBarMetricsDefault];

    }

    

    NSDictionary *textTitleOptions = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor, [UIColor whiteColor], UITextAttributeTextShadowColor, nil];

    [[UINavigationBar appearance] setTitleTextAttributes:textTitleOptions];