android9-sdk-28源码替换为-Lineageos-9源码-android-studio-4.2调试LineageOS-16.0的view绘制流程

整体想法: 替换sdk-28源码中每一个x.java文件为指向软连接LineageOS-16.0对应的x.java

调试前奏(准备)

android-studio-4.2并不像老版本android-studio那样容易替换api源文件路径

android-studio-4.2:

• 在Project Structure不能设置api(如28)的源码路径
• 在x.class的反编译窗口,并没有提供选择源码路径的界面

因此 以下记录 简单粗暴的替换android-studio-4.2的android-sdk-manger中api(android9, api28)的源码为LinageOS-16.0(android9,api28)的方法

1. android studio 4.2 下载api 28源码

android-studio-4.2 --> Tools --> sdk manager --> show package details --> android 9.0 (pie) --> sources for android 28

2. 寻找下载的源码目录路径

下载的源码目录为android-sdk-home/sources/android-28

find ~/ -type f -name "*.xml"  | while read k ; do ( grep -Hn "/sources/" $k ;) ; done

/home/z/.config/Google/AndroidStudioPreview4.2/options/jdk.table.xml:65:            <root url="file:///app5/android-sdk-home/sources/android-35" type="simple" />
/home/z/.config/Google/AndroidStudioPreview4.2/options/jdk.table.xml:120:            <root url="file:///app5/android-sdk-home/sources/android-28" type="simple" />

3. android9(pie)源码目录与LinageOS16.0源码frameworks/base/core的*.java差异

只做了一边差集(L中的每一个在A中有无情况)，另一边TODO

( cd /app5/OP3TLos16Build/frameworks/base/core/java && find .  -type f -name "*.java" ;) | while read k ; do (  cd /app5/android-sdk-home/sources/android-28/ && [[ ! -f $k ]] && echo $k     ;); done 

./android/app/NotificationGroup.java
./android/database/sqlite/SQLiteTokenizer.java
./android/view/WindowManagerPolicyControl.java
./com/android/internal/os/DeviceKeyHandler.java
./com/google/android/collect/Lists.java
./com/google/android/collect/Maps.java
./com/google/android/collect/Sets.java
./com/google/android/util/AbstractMessageParser.java
./com/google/android/util/Procedure.java
./com/google/android/util/SmileyParser.java
./com/google/android/util/SmileyResources.java
./com/nvidia/NvAppProfiles.java
./com/nvidia/NvAppProfileService.java
./com/nvidia/NvConstants.java
./com/nvidia/NvCPLSvc/NvAppProfile.java
./com/nvidia/NvCPLSvc/NvSaverAppInfo.java
./com/nvidia/NvWhitelistService.java
./com/nvidia/profilemanager/NvAppProfileSettingId.java
./com/nvidia/profilemanager/ProfileTypeId.java

4. LinageOS16.0源码frameworks/base/core每个*.java文件 覆盖 android9(pie)源码目录的对应文件

LosD=/app5/OP3TLos16Build/frameworks/base/core/java
AnD=/app5/android-sdk-home/sources/android-28/
( cd