Hi jmpessoa !
Yes a solution such
https://stackoverflow.com/questions/33118121/android-tts-for-multiple-languages is the best because with a parameter as "SpeechLanguage = Greek" or whatever will be ok. I mean that if had an ability for custom languages, will be best solution.
Yes i know the " jTextToSpeech1.SpeechLanguage:= slDefault " it is ok but depends of selected phone language.
I prefer to force selected language for my app, because some users had selected other language for their phone and prefer to have the language selection option inside application.
If its not very hard to add this piece of code in the future, i think that will be very useful for all.
Thank you !