AndroidStudio导入源码和调试

一、Android源码下载和编译

下载和编译源码参见下面

macOS High Sierra编译android9.0源码-https://blog.csdn.net/wangkaishou/article/details/89855766

二、生成可被AndroidStudio导入的配置文件

2.1 单独编译idegen模块生成idegen.jar

在源码的根目录下,执行下面命令编译出idegen.jar文件

source build/envsetup.sh mmm development/tools/idegen/

命令执行完成后会输出idegen.jar的路径:

out/host/darwin-x86/framework/idegen.jar

... ============================================ ninja: no work to do. [1/1] out/soong/.bootstrap/bin/soong_build out/soong/build.ninja out/build-aosp_x86_64-_development_tools_idegen_Android.mk-cleanspec.ninja is missing, regenerating... out/build-aosp_x86_64-_development_tools_idegen_Android.mk.ninja is missing, regenerating... [ 99% 228/229] glob toolchain/pgo-profiles/hwui/hwui.profdata.2018-03-20 [ 20% 1/5] //development/tools/idegen:idegen javac [darwin common] 注: 某些输入文件使用或覆盖了已过时的 API。 注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。 [100% 5/5] Install: out/host/darwin-x86/framework/idegen.jar

2.2 生成AndroidStudio工程配置文件-android.ipr和android.iml

成功编译完成idegen模块生成idegen.jar文件后,在根目录继续执行下面命令,就可以生成了AndroidStuido源码工程的配置文件了

development/tools/idegen/idegen.sh

大约一两分钟后命令执行完成后就会生成android.ipr和android.iml 这两个文件位于在源码的根目录下

. ├── Android.bp -> build/soong/root.bp ├── Makefile ├── android.iml ├── android.ipr ├── art ├── bionic ├── bootable ├── bootstrap.bash -> build/soong/bootstrap.bash ├── build ├── compatibility ├── cts ├── dalvik ├── developers ├── development ├── device ├── external ├── frameworks ├── hardware ├── kernel ├── libcore ├── libnativehelper ├── out ├── packages ├── pdk ├── platform_testing ├── prebuilts ├── sdk ├── sync.sh ├── system ├── test ├── toolchain └── tools

三、导入源码

打开Android Studio,通过File->open找到源码目录下的android.ipr文件就可以直接导入工程了. 第一次导入将会非常漫长.

3.1 加快导入

默认会把所有android源码导入到AndroidStudio中,如果只关注Framework层源码,可以在android.iml文件中添加下面的文件,排除掉不需要导入的目录

<excludeFolder url="file://$MODULE_DIR$/art" /> <excludeFolder url="file://$MODULE_DIR$/bionic" /> <excludeFolder url="file://$MODULE_DIR$/bootable" /> <excludeFolder url="file://$MODULE_DIR$/build" /> <excludeFolder url="file://$MODULE_DIR$/cts" /> <excludeFolder url="file://$MODULE_DIR$/dalvik" /> <excludeFolder url="file://$MODULE_DIR$/developers" /> <excludeFolder url="file://$MODULE_DIR$/development" /> <excludeFolder url="file://$MODULE_DIR$/device" /> <excludeFolder url="file://$MODULE_DIR$/docs" /> <excludeFolder url="file://$MODULE_DIR$/external" /> <excludeFolder url="file://$MODULE_DIR$/hardware" /> <excludeFolder url="file://$MODULE_DIR$/kernel" /> <excludeFolder url="file://$MODULE_DIR$/libcore" /> <excludeFolder url="file://$MODULE_DIR$/libnativehelper" /> <excludeFolder url="file://$MODULE_DIR$/out" /> <excludeFolder url="file://$MODULE_DIR$/pdk" /> <excludeFolder url="file://$MODULE_DIR$/platform_testing" /> <excludeFolder url="file://$MODULE_DIR$/prebuilts" /> <excludeFolder url="file://$MODULE_DIR$/sdk" /> <excludeFolder url="file://$MODULE_DIR$/system" /> <excludeFolder url="file://$MODULE_DIR$/test" /> <excludeFolder url="file://$MODULE_DIR$/toolchain" /> <excludeFolder url="file://$MODULE_DIR$/tools" /> <excludeFolder url="file://$MODULE_DIR$/.repo" />

四、AndroidStudio中配置源码

通过AndroidStudio导入源码后, 需要为项目配置SDK和JDK,否则阅读源码时代码会跳转到jar包中的类

4.1 新建和配置SDK

右键打开项目配置窗口-Project Structure,选中SDKs中新建SDK,命名为jdk(framework),什么名字都可以,然后将其Classpath和Sourcepath删除掉

右键打开项目配置窗口-Project Structure,选中SDKs,选择Android API 28 Platform 将Java SDK切换为上一步刚创建的jdk(framework)

4.2 为工程配置SDK

右键打开项目配置窗口-Project Structure,选中Project,将Project SDK 切换为选择的 Android API 28 Platform

4.3 为工程配置依赖

右键打开项目配置窗口-Project Structure,选择Modules 将Dependencies中除了Android API 28 Platform以外的全部删除掉,然后将frameworks和external添加进来最终如下图所示.

五、调试源码

5.1 打开通过源码编译的模拟器

source build/envsetup.sh lunch emulator

5.2 attach进程

attach到模拟器中进程上,打上断点就可以调试了.