系统开发（三）——完善关联Camera源码和debug调式

由上一篇文章在AS导入源码阅读成功，查看如framework层,HAL层源码都没有什么问题，但是当我们来开发系统相机时，发现还是有一大串的bug,发现是R文件引用问题导致，今天就来解决这个问题。

一、AS关联Camera2

1. 上一篇一个小问题：导入的依赖配置保存失败，由于AS没有Android.iml和Android.ipr权限

    修改权限（否则一直报错，无法保存，Modul的依赖设置）：
    sudo chmod 777 Android.iml 
    sudo chmod 777 Android.ipr 
   

2. 修改Android.iml

   • 核心源码：

         <sourceFolder url="file://$MODULE_DIR$/frameworks" isTestSource="false" />
         <sourceFolder url="file://$MODULE_DIR$/hardware" isTestSource="false" />
         <sourceFolder url="file://$MODULE_DIR$/kernel_imx" isTestSource="false" />
         <sourceFolder url="file://$MODULE_DIR$/packages" isTestSource="false" />
         <sourceFolder url="file://$MODULE_DIR$/gen" isTestSource="false" generated="true" />
     

   • 关联系统相机R件配置文（classes）

     <!-- 关联系统相机　Ｒ -->
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/obj/APPS/Camera2Tests_intermediates" isTestSource="true" />
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/obj/APPS/Camera2_intermediates" isTestSource="false" />
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/obj/JAVA_LIBRARIES" isTestSource="false" />
     <sourceFolder url="file://$MODULE_DIR$/./out/target/common/obj/APPS/ExtServices_intermediates/src" isTestSource="false"/>
     
     <sourceFolder url="file://$MODULE_DIR$/out/target/product/sabresd_6dq" isTestSource="false" />
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/gen" isTestSource="false" />
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/R" isTestSource="false" />
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/docs" isTestSource="false" />
     <sourceFolder url="file://$MODULE_DIR$/out/target/common/System" isTestSource="false" />
     

3. 关联Camera2使用的第三方库，比如glide ,google common，这里有2种办法：

   • 首先是一个个找到，如下： （在最初生成的Android.iml，如我的：IMX6Q Android 7.1.2 IDEGen生产Android.iml）

       <!-- 关联系统引用的jar包，比如glide ,google common-->
       <sourceFolder url="file://$MODULE_DIR$/./external/glide/library/src/main/java" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/glide/testutil/src/main/java" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/glide/third_party/disklrucache/src/main/java" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/glide/third_party/gif_decoder/src/main/java" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/glide/third_party/gif_encoder/src/main/java" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/google-tv-pairing-protocol/java/src" isTestSource="false"/>
       
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/base/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/cache/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/collect/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/escape/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/io/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/math/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/com/google/common/primitives/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/src-super/java/util/super" isTestSource="false"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/base/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/cache/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/collect/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/collect/testing/google/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/collect/testing/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/io/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/math/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/net/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/primitives/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/testing/super" isTestSource="true"/>
       <sourceFolder url="file://$MODULE_DIR$/./external/guava/guava-gwt/test-super/com/google/common/util/concurrent/super" isTestSource="true"/>
     

   • 也可以直接关联external，工程量较大，影响相应速度

       <!-- 关联external -->
       <sourceFolder url="file://$MODULE_DIR$/external" isTestSource="false" />
     

二、debug调式

1. 在上述关联完成后就可以进行debug调式了，如下，在adb连上开发板设备后，选择AS进程调式按钮，如下图，勾选Show all processes ,选择我们需要调式得进程，如：
   com.android.camera2:
   

• 启动软件后，在代码中打上断点，即可进行debug调式
  

三、总结

接下来就是正常开放咯，如果不需要进行framework改动的，可以直接生产moudle项目，将out/target/product/xx_/system/framework.jar导入即可。
是不是很简单，喜欢点个关注呗。