下面介绍下基于Android 9的代码路径。

一、BT framework的代码路径

(1) Bluetooth apk

/packages/apps/Bluetooth

(2) Bt framework

/frameworks/base/services/core/java/com/android/server/BluetoothManagerService.java和BluetoothService.java

/frameworks/base/core/java/android/bluetooth/

(3) BT stack

/system/bt/

(4) Scan/TvSettings app

/frameworks/base/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothEventManager.java   

/frameworks/base/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDeviceManager.java   

/packages/apps/TvSettings/Settings/src/com/android/tv/settings/accessories/BluetoothDevicePairer.java   

二、Audio framework的代码路径

(1) java code

/frameworks/base/media/java/android/media/

/frameworks/base/services/core/java/com/android/server/audio/

(2) jni

/frameworks/base/core/jni/
/frameworks/base/media/jni/

(3) c++
/frameworks/av/media/libaaudio/
/frameworks/av/media/libaudioclient/
/frameworks/av/media/libmedia/
/frameworks/av/media/audioserver/

/frameworks/av/services/audiopolicy/
/frameworks/av/services/audioflinger/

(4) 数据库里面的setting

/frameworks/base/core/java/android/provider/

(5) .h

/system/media/audio/include/system/

(6) hidl

/frameworks/av/media/libaudiohal/4.0/

(7) AAudio mmap

/frameworks/av/services/oboeservice/

(8) Netflix上层调节音量

/frameworks/av/include/media/VolumeShaper.h  (只需build下AudioFlinger)

(9) Timecheck.cpp

/frameworks/av/media/libmedia/TimeCheck.cpp

(10) SystemServer

/frameworks/base/services/java/com/android/server/SystemServer.java   

最后

以上就是平常黑米最近收集整理的关于Android 9的BT/Audio frameowrk的代码路径一、BT framework的代码路径二、Audio framework的代码路径的全部内容，更多相关Android内容请搜索靠谱客的其他文章。