出自UXGuide.net

使你的程序具有无障碍性

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.

无障碍性指的是应用程序应该让残疾用户也能成功的使用，或者是在辅助应用程序或设备的帮助下成功的使用。基于 iPhone 操作系统的设备包含许多方便用户（包括残疾用户）的特性，，例如可视化语音邮件，放大，以及语音控制。并且，你无需在你的应用程序中介入任何东西，即可确保用户从这些特性中受益。

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.

说道VoiceOver，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，用户无需看到屏幕，就可以控制自己的设备。为了确保VoiceOver用户可以尽情地使用你的应用程序，你可能需要提供一些关于用户界面中视图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控件和视图在默认就具有无障碍性，所以当你以一个完全标准的方法应用标准元素时，你基本只有一点儿（如果有的话）额外的工作要做。你的用户界面自定义程度越高，需提供的自定义信息就越多，这样VoiceOver才能向那些有视觉缺陷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的用户能无障碍地访问你的iPhone应用程序是一件正确的事情。它也可以增加你的用户群，帮助您落实由各种监管组织的辅助功能规范。