Show space available on /system

[mfonville]

Not every user knows how large their /system partition is.

We could indicate the current space used and available on /system just like Android itself can show about disk-usage.

UI:

• a multi-colored bar that indicates 3 types: used by ROM + used by GApps + free
• maybe (tooltip) text with human readable size info

Backend:

• fetch partition size, used space and free space of /system/
• check existence of /system/etc/g.prop if it exists and indicates with prop-values that Open GApps installed, check for /system/addon.d/70-gapps.sh and collect the filepaths listed in list_files.
• calculate the total filesize of these GApps-related files
• total used space minus these GApps filesize => used by ROM size

[NatoBoram]

By detecting the available storage, the .APK can automatically select the largest possible package variant to install and mark it as detected if no other OpenGApps are already installed.

[mfonville]

@NatoBoram unfortunately we cannot predict from the app (yet) how large the install would be; because we don't know which dpi-variants will be installed each for each app, or whether the user uses a gapps-config file.

[NatoBoram]

It is possible to get the DPI using DisplayMetrics, and it is safe to assume that the user will not use a gapps-config file if it doesn't know the size of its own /system partition. I think you can do it :)

[Revan335]

This was a interesting Information.
Any actually Status?