Is there a way to create a text field with a prefix that is always visible in flutter

Question

UPDATE: We can now override the minimum padding of prefixIcon AND suffixIcon with prefixIconConstraints.

We can use prefixIcon instead of prefixText. Since prefixIcon accepts any widget, we can use prefixIcon: Text("$").

Here is an example:

InputDecoration(
   isDense: true,
   prefixIcon:Text("\$"),
   prefixIconConstraints: BoxConstraints(minWidth: 0, minHeight: 0),
),