Is it possible to build Android for a device without a touchscreen? I have in mind a device with no display at all. This would be similar to Android Things SDK, which is not at all ready yet.
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Android TV, Fire TV, and countless Android-on-an-HDMI-stick devices are available for sale. So, yes, it is possible to create an Android device that does not have a touchscreen. – CommonsWare Jan 13 '17 at 19:48
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Yes, it's possible with Android Things. Displays are optional.
Android Things supports graphical user interfaces using the same UI toolkit available to traditional Android applications. In graphical mode, the application window occupies the full real estate of the display. Android Things does not include the system status bar or navigation buttons, giving applications full control over the visual user experience.
However, Android Things does not require a display. On devices where a graphical display is not present, activities are still a primary component of your Android Things app. This is because the framework delivers all input events to the foreground activity, which has focus. Your app cannot receive key events or motion events through any other application component, such as a service.
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