21. Accessibility and Other iPhone OS Services

Applications interact with standard iPhone services in a variety of ways. This chapter introduces several approaches. Applications can define their interfaces to the iPhone’s VoiceOver accessibility handler, creating descriptions of their GUI elements. Developers can create bundles to work with the built-in Settings applications so that users can access applications’ defaults using that interface. Applications can also declare public URL schemes allowing other iPhone applications to contact them and request services that they themselves offer. This chapter explores these application service interactions. It shows you how to implement these features in your applications. You see how to build these ...

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