Android Device Monitor "data" folder is empty
I have tested creating, inserting and retrieving data into my apps db, and know it works through usage of Log statements.
However, I wish to expedite testing and use the Android Device Monitor. However, though the db exists and data is stored, when accessing below, the data
folder is empty:
Why would this be the case? How can this be configured to show the db file and contents?
Solution 1:
Solving the issue using an emulator
The folder /data
can be empty because you are missing the proper permissions. To solve it, I had to execute the following commands.
adb shell
su
Those commands starts a shell in the emulator and grant you root rights. The command adb
is located in the folder platform-tools
of the Android SDK, typically installed in ~/Library/Android/sdk/
on MacOS.
chmod -R 777 /data
Modify the permissions of the folder (and subfolders recursively) /data
in order to make them appear in the tool Android Device Monitor.
adb root
Finally, this command restarts adb
as root. Be careful, it only works on development builds (typically emulators builds).
Afterwards, you can see the content of the folder /data
and transfer the data located in. You can do it in console as well, using adb pull <remote> <locale>
, such as:
adb pull /data/data/<app name>/databases/<database> .
Solution 2:
In addition to @Steven K's answers: If you want to gain access to your data without having to root your real device you need to run your app in an emulator with API 23 (or lower). It is a known problem that APIs above 23 can cause problems when deploying Android Device Monitor.