Because the download is an XAPK file, standard Android installers cannot unpack it natively.
A black screen indicates that the game launcher cannot find the massive OBB data files. Ensure you used the Uptodown app to handle the installation, as manual copying can sometimes misplace files. Verify that the files reside exactly in Internal Storage > Android > obb > com.rockstargames.gtasa . Storage space issues download gta san andreas for android uptodown