iOS 设置导航栏的颜色和导航栏上文字的颜色

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end

#import "AppDelegate.h"
#import "KeyViewController.h"
@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    //初始化导航
    UINavigationController *navi = [[UINavigationController alloc] initWithRootViewController:[[KeyViewController alloc] init]];

    //设置导航栏的背景颜色（iOS7之后）
    [[UINavigationBar appearance] setBarTintColor:[[UIColor alloc] initWithRed:/255.0 green: blue:/255.0 alpha:]];

    //使用背景图片来设置导航栏的颜色（iOS7之后）
//    [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"顶栏背景"] forBarMetrics:UIBarMetricsDefault];

    //设置导航栏上文字的颜色（iOS7之后）
    [[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor orangeColor]}];
    self.window.rootViewController = navi;

    [self.window makeKeyAndVisible];
    return YES;
}

@end

#import <UIKit/UIKit.h>

@interface KeyViewController : UIViewController

@end

#import "KeyViewController.h"

@interface KeyViewController ()

@end

@implementation KeyViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.title = @"提取现金";

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end