I know how to force numbers, texts etc.., but is there a flag or IME options for me to force the EditText to accept only certain language like English in case my DB fields can accept only English characters? of course I can check and notify the users on bad input but that's not exactly user friendly....
Implementing my own filter on the EditText might also be possible but I'm not sure it will force the keyboard layout itself to be in the language I need.
Any idea?
You should probably filter the input anyways. Forcing English keyboard doesn't force user to use only English letters. User can still long press a character or have a non-english hardware keyboard.
You could listen to text change events and reject all characters that are not accepted by your DB at that point.