In addition, since the introduction of background processing in iOS 4, you can actually switch to the Settings application, change a preference, and then switch back to your application.

原来的翻译:此外,学了处理iOS 4的基本知识之后,用户实际上可以转向Settings应用程序,改变首选项,然后切换回你的应用程序。

建议的翻译:此外,由于iOS 4引入了后台处理机制,实际上用户可以切换到Settings应用、修改首选项,然后再切回原来的应用。


We’re going to build a simple application in this chapter. First, we’ll implement a settings bundle so that when the user launches the Settings application, there will be an entry for our application, AppSettings.