How to display snackbar infinite duration in flutter?

Question

I created flutter project in android studio and tried to show snackbar infinite duration.This is my code

 final snackBar = SnackBar(
    content: Text('Cart:'+countProducts.toString()+" Products($countCost:sum)",style: TextStyle(color: Colors.black),),
      shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.only(topLeft:Radius.circular(22),topRight:Radius.circular(22))),
    backgroundColor: Colors.white70,
    action: SnackBarAction(
      textColor: Colors.blueAccent,
      label: "Buy",
      onPressed: () {
        // Some code to undo the change.
      },
    ),
  );

  Scaffold.of(context).showSnackBar(snackBar);

There is another button that will change snackbar text. But I do not want to it dismiss back.So how to display snackbar infinite duration in flutter

Solution

You can use the Duration property on the snackbar

Example

final snackBar = SnackBar(
    content: Text('Cart:'+countProducts.toString()+" Products($countCost:sum)",style: TextStyle(color: Colors.black),),
      shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.only(topLeft:Radius.circular(22),topRight:Radius.circular(22))),
    backgroundColor: Colors.white70,
    action: SnackBarAction(
      textColor: Colors.blueAccent,
      label: "Buy",
      onPressed: () {
        // Some code to undo the change.
      },
    ),
   duration: Duration(seconds: double.infinity),

//Gets problem int != double );

using Duration(seconds: double.infinity)

Not Sure if this is the best though.

EDIT

You can try the following instead of using double.infinity

Duration(days: 365)

Reference

• Duration