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Build Your Own Android System Architecture, Development, and Optimization

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Champ Yen
Champ Yen
TechnologyEntertainment & Humor
1 of 17
Play with Android Champ Yen http://champyen.blogspot.com [email_address]
Outlines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Android Architecture
Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
License Perspective Kernel - GNU Public License Android - Apache License
Why Android? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
How to start? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
How to start? (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Software Development ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Take care of API Levels http://developer.android.com/intl/fr/guide/appendix/api-levels.html
Build it Yourself! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Kernels for Android versions Basic support : logger, binder, network, power ASHMEM : Android Shared Memory Subsystem PMEM : Physical Memory Allocator 2.6.23 2.6.25 2.6.27 2.6.29 Basic Support ○ ○ ○ ○ ASHMEM ╳ ○ ○ ○ PMEM ╳ ╳ ○ ○ 2.6.23 2.6.25 2.6.27 2.6.29
System Directories Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Customization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Optimization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Optimization Example 0xlab intends to make use of several feature of OMAP 3530 on BeagleBoard (includes NEON, DSP, 3D and OMAP DSS2) to improve performance of graphics and multimedia on Android. And some features have been implemented. Rock the World! 0xlab!
Q & A

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Build Your Own Android System Architecture, Development, and Optimization

  • 1. Play with Android Champ Yen http://champyen.blogspot.com [email_address]
  • 2.
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  • 5. License Perspective Kernel - GNU Public License Android - Apache License
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12. Kernels for Android versions Basic support : logger, binder, network, power ASHMEM : Android Shared Memory Subsystem PMEM : Physical Memory Allocator 2.6.23 2.6.25 2.6.27 2.6.29 Basic Support ○ ○ ○ ○ ASHMEM ╳ ○ ○ ○ PMEM ╳ ╳ ○ ○ 2.6.23 2.6.25 2.6.27 2.6.29
  • 13.
  • 14.
  • 15.
  • 16. Optimization Example 0xlab intends to make use of several feature of OMAP 3530 on BeagleBoard (includes NEON, DSP, 3D and OMAP DSS2) to improve performance of graphics and multimedia on Android. And some features have been implemented. Rock the World! 0xlab!
  • 17. Q & A