Inside Android’s User Interface – ELCE 2012

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Karim Yaghmour, Opersys inc, talks about the internals of the Android user interface at Embedded Linux Conference Europe on November 5, 2012.

Abstract:

Android is a very complex stack comprising several dozens of novel components and moving parts. Still, it’s intrinsically a user-centric system and, therefore, its parts which deal with user interface are of special interest for anyone aiming to put Android in a device. This talk will examine the internals of Android’s user-facing components. Specifically, we will cover the inner-workings and interactions of the Window Manager, Surface Flinger, Input Method Manager, and the rest of the system. We will also cover key display and input components such as the Status Bar, Soft Keyboard and Notifications.

This talk will be especially useful to developers intending to use Android in user-facing embedded systems, those needing to implement support for their graphics hardware and anyone interested in the internals of Android’s graphics and input layers.

Android Display Stack

Android Display Stack

Karim covers the following key points during the presentation:

  • Android’s UI, what’s that?
  • Architecture Basics
  • Display Core
  • OpenGL
  • Input Layer
  • Relevant Apps and Services
  • System Startup
  • References and Pointers

You can also download the presentation slides.