It is said in renpy documentation and I quote:
If you don't want to download the SDK each time, you can create a file named sdk.txt containing a single line that is the path to the already-installed SDK
The problem is that, after I create the file with the content going to the Android SDK parent path, the renpy GUI Android still needs to download Android SDK(did not see the pre-installed Android SDK). I cannot access the configuration button when it cannot see the Android SDK installed path.
Note: I checked the Android SDK path and it is correct. D:\android-sdk\
Go inside the folder where you installed RenPy (not the project folder!).
There you will see another folder called
rapt. You need to save thesdk.txtinside that folder.If you don't see the
raptfolder, RenPy will probably create that for you automatically when it asks you to install the RAPT tool.You might have to restart RenPy for it to reflect within the app.