出自UXGuide.net

使你的程序具有无障碍特性

Making Your Application Accessible

An application is accessible when users with disabilities can use it successfully, perhaps with the help of an assistive application or device. iPhone OS–based devices include many features that make it easier for all users, including disabled users, to use the device, such as visual voicemail, zoom, and voice control. You do not have to take any steps in your application to ensure that your users can benefit from these features.

一个易于使用的应用程序，应该允许残疾用户在辅助应用程序或设备的帮助下成功使用。基于iPhone操作系统的设备包含许多方便所有用户的特点，包括残疾人士，使用诸如可视语音邮件，放大设备，以及语音控制。你不必在应用程序中采取任何步骤，来确保用户可以受益于这些功能。

With VoiceOver, the story is a little different. VoiceOver is Apple’s innovative screen-reading technology, which gives users control over their devices without requiring them to see the screen. To make sure VoiceOver users can use your application to its fullest, you might need to provide some custom information about the views and controls in the user interface.

在VoiceOver中，这个故事略有不同。VoiceOver是苹果的创新屏幕阅读技术，利用这种技术，用户不必看到屏幕，就可以控制自己的设备。为了确保VoiceOver用户可以最充分的使用你的应用程序，你可能需要提供一些关于用户界面和控件的自定义信息。

Fortunately, UIKit controls and views are accessible by default, so when you use standard elements in a completely standard way, you have little (if any) additional work to do. The more custom your user interface is, the more custom information you need to provide, so that VoiceOver can properly describe your application to users with visual impairments.

幸运的是，UIKit控件和视图在默认情况下就是可以被访问的，所以当你以一个完全的标准方法应用标准元素时，你基本没有什么（如果有的话）额外的工作要做。你自定义的用户界面越多，要提供的自定义信息就越多，这样VoiceOver可以向有视觉障碍的用户正确地描述你的应用程序。

Making your iPhone application accessible to VoiceOver users is the right thing to do. It can also increase your user base and it might help you address accessibility guidelines created by various governing bodies.

使VoiceOver的用户能访问你的iPhone应用程序是一件正确的事情。它也可以增加你的用户群，帮助你处理各理事机构创建的易读性指南。