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        如何创建像 BestBuy App 这样的自定义导航栏?

        How to create Custom Navigation Bar like BestBuy App?(如何创建像 BestBuy App 这样的自定义导航栏?)
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                • 本文介绍了如何创建像 BestBuy App 这样的自定义导航栏?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我想制作一个自定义导航栏,就像在 BestBuy 应用程序中一样,或者像下面给出的屏幕截图中显示的那样.

                  I want to make a custom navigation bar as like in the BestBuy App or like shown in the below given screenshot.

                  我希望这种类型的 Navigation 始终位于每个 viewController 的顶部.

                  I want this type of Navigation to be always on the top of each and every viewController.

                  如果有人能告诉我程序或任何形式的帮助,将不胜感激.谢谢.

                  If anyone can tell me the procedure or any kind of help would be appreciated. Thanks.

                  推荐答案

                  编写 UINavigationBar 的子类,在其中自定义绘图并根据需要添加子视图.

                  write a subclass of UINavigationBar in which you do custom drawing and add subviews as needed.

                  然后通过使用 initWithNavigationBarClass:toolBarClass:

                  例如

                  @interface MyBar : UINavigationBar
                  @end
                  
                  @implementation MyBar 
                  .... //like any UIView
                  @end
                  

                  <小时>

                  UINavigationController *navi = [[UINavigationController alloc] initWithNavigationBarClass:[MyBar class] toolbarClass:nil];
                  

                  而不是 initWithRootViewController

                  样本

                  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
                  {
                  self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
                  // Override point for customization after application launch.
                  if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
                      self.mainViewController = [[FDMainViewController alloc] initWithNibName:@"FDMainViewController_iPhone" bundle:nil];
                  } else {
                      self.mainViewController = [[FDMainViewController alloc] initWithNibName:@"FDMainViewController_iPad" bundle:nil];
                  }
                  
                  UINavigationController *navi = [[UINavigationController alloc] initWithNavigationBarClass:[UINavigationBar class] toolbarClass:nil];
                  navi.viewControllers = @[self.mainViewController];
                  self.window.rootViewController = navi;
                  [self.window makeKeyAndVisible];
                  return YES;
                  }
                  

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