AppDelegate.m

//
//  AppDelegate.m
//  CYLTabBarController
//
//  Created by 微博@iOS程序犭袁 ( http://weibo.com/luohanchenyilong/ ) on 10/20/15.
//  Copyright © 2015 https://github.com/ChenYilong . All rights reserved.
//

#import "AppDelegate.h"
#import "CYLTabBarControllerConfig.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // 设置主窗口,并设置根控制器
    self.window = [[UIWindow alloc]init];
    self.window.frame = [UIScreen mainScreen].bounds;
    CYLTabBarControllerConfig *tabBarControllerConfig = [[CYLTabBarControllerConfig alloc] init];
    [self.window setRootViewController:tabBarControllerConfig.tabBarController];
    [self.window makeKeyAndVisible];
    [self customizeInterface];
    return YES;
}

- (void)customizeInterface {
    [self setUpNavigationBarAppearance];
}

/**
 *  设置navigationBar样式
 */
- (void)setUpNavigationBarAppearance {
    UINavigationBar *navigationBarAppearance = [UINavigationBar appearance];
    
    UIImage *backgroundImage = nil;
    NSDictionary *textAttributes = nil;
    if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {
        backgroundImage = [UIImage imageNamed:@"navigationbar_background_tall"];
        
        textAttributes = @{
                           NSFontAttributeName: [UIFont boldSystemFontOfSize:18],
                           NSForegroundColorAttributeName: [UIColor blackColor],
                           };
    } else {
#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_7_0
        backgroundImage = [UIImage imageNamed:@"navigationbar_background"];
        
        textAttributes = @{
                           UITextAttributeFont: [UIFont boldSystemFontOfSize:18],
                           UITextAttributeTextColor: [UIColor blackColor],
                           UITextAttributeTextShadowColor: [UIColor clearColor],
                           UITextAttributeTextShadowOffset: [NSValue valueWithUIOffset:UIOffsetZero],
                           };
#endif
    }
    
    [navigationBarAppearance setBackgroundImage:backgroundImage
                                  forBarMetrics:UIBarMetricsDefault];
    [navigationBarAppearance setTitleTextAttributes:textAttributes];
}

@end