Orange Pi Zero 2 - Download the Source Code of Android Sdk; Chapter 6: Building Android from Source

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THE OFFICIAL ORANGE PI USER'S GUIDE
Chapter 5
Building Android
from source
Build your own Android image with
customizations
A
ndroid images for Orange Pi Zero2 can be easily built by the vendor
provided BSP sources. This features a latest version of Android with all
drivers for GPU and media playback.
1) The compilation of the Android SDK is performed on a PC with Ubuntu 14.04
installed, and other versions of Ubuntu systems may have some differences
2) Android SDK is the original SDK released by the chip manufacturer. If you want to
use the Android image compiled by the Android SDK on the Orange Pi development
board, you need to adapt to different boards to ensure that all functions are used
normally
Download the source code of android sdk
1) The android source code of H616 contains the following 4 files
a. android.tar.gz: android mirror source code
b. android.tar.gz.md5sum: MD5 checksum file of android.tar.gz
c. longan.tar.gz: Contains u-boot, linux kernel source code (does not include boot0
source code)
d. longan.tar.gz.md5sum: MD5 checksum file of longan.tar.gz