import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

Widget badgeCounter(int counter, {VoidCallback onPressed}) {
  return InkWell(
    onTap: () => onPressed(),
    child: new Stack(
      children: <Widget>[
        new IconButton(
          padding: EdgeInsets.only(top: 10),
            icon: Icon(Icons.notifications),
            onPressed: () {
              onPressed();
            }),
        counter != 0
            ? new Positioned(
                right: 11,
                top: 11,
                child: new Container(
                  padding: EdgeInsets.all(2),
                  decoration: new BoxDecoration(
                    color: Colors.blue,
                    borderRadius: BorderRadius.circular(6),
                  ),
                  constraints: BoxConstraints(
                    minWidth: 14,
                    minHeight: 14,
                  ),
                  child: Text(
                    '+${counter > 99 ? 99 : counter}',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 10,
                    ),
                    textAlign: TextAlign.center,
                  ),
                ),
              )
            : new Container()
      ],
    ),
  );
}