Actually I want to find that what kind of items that are involved when we move the app to sd card? I have tried to search, but all the answer point me to "how to move app to sd" but actually I just want to know what items been move to sd and what items are left. I can see that there is still some memory left (in internal memory) when I move the app to sd. I am just curious what are the things left ? Where actually the app move to (in which part of the sd card)?
Good Question!
Let me explain you with an example package say "com.example.app"
Now, when a app is installed for the first time, a new folder will be created by the name
/data/com.example.app
Inside this will contain all the app private data.
Similary, the APK itself is contained in
/data/app/com.example.app-1.apk
Now, when we move application to external storage, the following happens.
/mnt/asec/com.example.app
. You can reach this path using any File Manager apps as it has rw permissions/mnt/asec/com.example.app/com.example.app-1.apk
In this way, /data
partition space will be saved and can be reused for other apps. This is a good trick to use when phone gets low on /data storage to move apps to external storage.
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