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Audio Books


An audiobook app for SDL should include as much of the native apps functionality as possible, since that is what a user will be expecting out of the app.

Use Voice Commands

Your Audiobook app should contain such basic functionality as Play, Pause, and Resume. You can use build in controls for these features by calling the subscribeButton RPC. This will allow you to not only create buttons on the infotainment system but also be informed when the user presses hard buttons, which might be placed on the steering wheel. It is important to also add voice control capabilities for these functions. To add a voice command use the AddCommand RPC but omit the menuParams argument. This will create a voice command without creating an item in the menu.

More information about this RPC can be found on the UI.AddCommand page.

Display Information

Your app should display information like title, author, and potentially additional items like chapter number. It is encouraged to use the following layout of information on the screen:

TextField Information
mainField1 Title
mainField2 Author
mainField3 Chapter (x/x)

It is encouraged to show static images of the book cover, however moving or interactive images are not allowed. Neither is the display of the actual text of the book.

More information can be found in the DisplayInformation section.

Managing Lists

Use the PerformInteraction RPC to allow users to choose from lists of Books.

Managing Audio

When you receive the NOT_AUDIBLE state you should pause the audio and resume when you receive AUDIBLE. The pausing and resuming should be independent on the current HMILevel state.

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