For dynamically resizing text size, we can use the FittedBox widget. There are various options to fit the child widget, ex BoxFit.fitWidth, BoxFit.Height etc. The default fit is BoxFit.Contain.
Example –
FittedBox( fit: BoxFit.fitWidth, child: Text('Bacancy technology, Ahmedabad, Gujarat, india'), ),
This will change the size dynamically.
Demo code – Demo Code Link