本文主要是介绍Android代码分层调试，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1 打印分层
1 HYH_SnapdragonCamera:
printDebug.printLine()
2 HYH_frame_base_java:
System.out.println( "HYH_frame_base_java: getPersistedString mKey:" + mKey);
printLine();
3 HYH_frame_base_jni:
ALOGE("HYH_frame_base_jni: %s (line = %d)", __FUNCTION__, __LINE__);
4 HYH_frame_av:
ALOGE("HYH_frame_av: %s: %d", __FUNCTION__,__LINE__);
5 HYH_hardware_interfaces:
ALOGE("HYH_hardware_interfaces: %s: %d", __FUNCTION__,__LINE__);
6 HYH_vendor_camx:
CAMX_LOG_ERROR(CamxLogGroupHAL, " HYH_vendor_camx: test");
7 HYH_vendor_chi:
CHX_LOG_ERROR(" HYH_vendor_chi: (thread)%lu",pthread_self());
LOG_ERROR(" HYH_vendor_chi: ", "XXX ");
2 代码目录 分层 ，编译，及替换的so
1 Java层代码:
caf/packages/apps/SnapdragonCamera
git:caf/packages/apps/SnapdragonCamera
编译:mm
替换system\priv-app\SnapdragonCamera\SnapdragonCamera.apk
2 Framework层的Java层代码:
caf/frameworks/base/core/java/android/hardware/camera2
git:caf/frameworks/base/core/java
编译:make -j48，全编译
替换system.img
3 Framework层的Jni层代码:
caf/frameworks/base/core/jni
git: caf/frameworks/base/core/jni
编译:替换system/lib64/libandroid_runtime.so(64位)
4 Framework层的native层代码:(aidl的binder)
caf/frameworks/native
git:caf/frameworks/native
编译:替换libbinder.so
5 Framework层的C层代码:
caf/frameworks/av
git:caf/frameworks/av
编译:没找到部分编译，先全编译make -j48
//caf/frameworks/av/services/camera/libcameraservice
替换libcameraservice.so
//caf/frameworks/av/camera/CameraMetadata.cpp
替换libcamera_client.so(64位) //32位的库也跑，是其他接口在跑!!!
6 Hal层的interfaces层代码:
caf/hardware/interfaces
git:caf/hardware/interfaces
编译:没找到部分编译，先全编译make -j48
configureStreams_3_3
替换 camera.device@3.3-impl.so
processCaptureRequest processOneCaptureRequest
替换 camera.device@3.2-impl.so
7 Vendor层的Camx层代码:
caf/vendor/qcom/proprietary/camx
git:caf/vendor/qcom/proprietary/camx
编译:mm
替换camera.qcom.so
8 Vendor层的Chi层代码:
caf/vendor/qcom/proprietary/chi-cdk
git:caf/vendor/qcom/proprietary/chi-cdk
编译:mm
替换com.qti.chi.override.so
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