How do you change the value inside of a textfield flutter?

Question

I have a TextEditingController where if a user clicks a button it fills in with information. I can\'t seem to figure out how to change the text inside of a

Answer 1

First Thing

  TextEditingController MyController= new TextEditingController();

Then add it to init State or in any SetState

    MyController.value = TextEditingValue(text: "ANY TEXT");