how to change the value of a textformfield flutter code example

Example 1: textfield set value flutter

/// You can use a [TextFormField] instead of [TextField]
/// and use the [initialValue] property. for example:

TextFormField(initialValue: "I am smart")

Example 2: flutter text replace in a textfield

final _newValue = "New value";
_controller.value = TextEditingValue(
      text: _newValue,
      selection: TextSelection.fromPosition(
        TextPosition(offset: _newValue.length),
      ),
    );