The Google drive file type grays out files, so you cannot open them in iPad Textastic.
1. Files uploaded that can be changed to Google Docs will get the Google file type. Textastic will not open those files (show up as grayed out). Even a plain text *.txt file will be changed to Google file type and then you cannot open in Textastic.
2. Coding files, in plain text, has all kinds of crazy extensions. Google doesn't know those so it sets the file type as Binary. Textastic grays those files out so you cannot open them from Google Drive.
(horrible) workaround: change the file extension to .xml then upload. It is okay to remove the .xml extension in Drive after as the file type will not change.
If you upload .txt then you must uncheck the option "convert to Google Docs format" beforehand.
In both cases the exact same file will open fine locally on the iPad
Basically, it is an annoyance from Google. But I would much rather that you let me try to open a file first, rather than block me from opening. They are all text files.
I want to use Textastic for coding, and this would be a big help using Google Drive to open files
Customer support service by UserEcho