Android Architecture

Overview presentations

• Android is not just Java on Linux
  • Great presentation by Tetsuyuki Kobayashi overview of Android
• See this Android Internals presentation by Karim Yaghmour
  • http://www.opersys.com/blog/android-internals-101103
  • You’ll find both the video and the slides there
• Mythbusters_Android.pdf Presentation by Matt Porter at ELC Europe
  • Has bits and pieces showing problematic Android code and policies

Basically Android has the following layers:

• applications (written in java, executing in Dalvik)
• framework services and libraries (written mostly in java)
  • applications and most framework code executes in a virtual machine
• native libraries, daemons and services (written in C or C++)
• the Linux kernel, which includes
  • drivers for hardware, networking, file system access and inter-process-communication