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iOS8设置NavigationBar颜色和BackButtonItem颜色

iOS8设置NavigationBar颜色和BackButtonItem颜色,归档存储以备查阅，把以下代码添加到appdelegate的

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

中。

//1. 设置导航栏的背景图片  UINavigationBar *bar=[UINavigationBar appearance];  //[bar setBackgroundImage:[UIImage imageNamed:@"navigationbar_background.png"] forBarMetrics:UIBarMetricsDefault];  [bar setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"navigationbar_background.png"]]];  bar.barStyle = UIStatusBarStyleDefault;  //1.2 设置返回按钮的颜色  在plist中添加 View controller-based status bar appearance=NO切记。  [bar setTintColor:kBackButtonColor]; // //设置返回按钮指示器图片 // UIImage *backImage=[[UIImage imageNamed:@"navigationbar_back"] resizableImageWithCapInsets:UIEdgeInsetsMake(5, 0, 5, 5)]; // [[UINavigationBar appearance] setBackIndicatorImage:backImage]; // [[UINavigationBar appearance] setBackIndicatorTransitionMaskImage:[UIImage imageNamed:@"navigationbar_back_highlighted"]]; //   //2. 设置导航栏文字的主题  [bar setTitleTextAttributes:@{           NSForegroundColorAttributeName:[UIColor blackColor],           }];  //3. 设置UIBarButtonItem的外观  UIBarButtonItem *barItem=[UIBarButtonItem appearance];  [barItem setBackgroundImage:[UIImage imageNamed:@"navigationbar_button_background.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];  [barItem setBackgroundImage:[UIImage imageNamed:@"navigationbar_button_background_pushed.png"] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];  //4. 该item上边的文字样式  NSDictionary *fontDic=@{        NSForegroundColorAttributeName:kBackButtonColor,        NSFontAttributeName:[UIFont systemFontOfSize:19.f],  //粗体        };  [barItem setTitleTextAttributes:fontDic          forState:UIControlStateNormal];  [barItem setTitleTextAttributes:fontDic          forState:UIControlStateHighlighted];  // 5.设置状态栏样式  [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;

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