Android 添加系统自定义接口

1.在AIDL中添加自定义的系统接口

frameworks/base/core/JAVA/Android/App/IActivityManager.aidl

如：void setDeviceName(String name);

2.在Manager中添加对外的API接口

frameworks/base/core/java/android/app/ActivityManager.java

如：

public void setDeviceName(@Nullable String name){

try{

getService().setDeviceName(name);

} catch (Exception e) {

Log.d(TAG,"e.getMessaage()= "+e.getMessage());

}

}

3.在Service中实现自定义接口的功能

frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java

如：

public void setDeviceName(String name){

//功能的实现

}

4.更新系统API接口

frameworks/base/api/current.txt

+ method public void setDeviceName(@Nullable String);

frameworks/base/non-updatable-api/current.txt

+ method public void setDeviceName(@Nullable String);