Android adb multi-user operation

View user list

adb shell pm list users

Create new user

adb shell pm create-user [–profileOf USER_ID] [–managed] USER_NAME

adb shell pm create-user 10 godv

Start and switch users

adb shell am switch-user USER_ID

adb shell am start-user USER_ID

Install the application to a user

adb install –user USER_ID name.apk

delete users

adb shell pm remove-user USER_ID

For data security under multiple users, at the beginning of each new user creation, whether it is an external storage (External Storage) or an app data directory, Android has prepared an independent file storage for it

/storage/emulated/ has different user partitions

/storage/emulated/0

/storage/emulated/10

The code is viewed by different users taking the SDK as an example to obtain reflection

int uid = -1;
try {
     Class clz = Class.forName("android.os.UserHandle");
     Method m = clz.getDeclaredMethod("myUserId");
     uid = (int) m.invoke(null);
     } catch (Exception e) {
         e.printStackTrace();
   }

Uri under ContentResolver

content:// USER_ID @media/external/audio/media

To get different data under different users