iOS 6中的导航栏看起来像iOS 7中的栏 [英] Navigation bar in iOS 6 look like bar in iOS 7

问题描述

有没有办法让iOS 6中的导航栏元素（后退按钮）看起来像iOS 7中的导航栏元素？
以及UI的按钮和其他iOS 7元素。

Is there any way to make navigation bar elements (back button) in iOS 6 look like navigation bar elements in iOS 7 ? And also buttons and other iOS 7 elements of UI.

推荐答案

而不是将代码放入每个视图控制器中需要自定义，我建议在整个应用程序中执行此操作，方法是将这样的内容放在应用程序中：在App Delegate中使用didFinishLaunchingWithOptions：方法

Instead of putting code into every view controller that you need to customize, I would recommend doing this for the entire application by putting something like this in your application:didFinishLaunchingWithOptions: method in the App Delegate

// Nav bar
[[UINavigationBar appearance] setBackgroundImage:[[UIImage imageNamed:@"navBar.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(10, 5, 10, 5)] forBarMetrics:UIBarMetricsDefault];

// Back buttons
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:[UIImage imageNamed:@"backNavButton.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

// Toolbar
[[UIToolbar appearance] setBackgroundImage:[[UIImage imageNamed:@"toolbar.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(10, 5, 10, 5)] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];

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