Badges for Flutter

Installing:

In your pubspec.yaml

dependencies:
  badges: ^1.1.0

import 'package:badges/badges.dart';

Basic Usage:

    Badge(
      badgeContent: Text('3'),
      child: Icon(Icons.settings),
    )

Animations:

BadgeAnimationType.slide	BadgeAnimationType.scale	BadgeAnimationType.fade

Chips:

Sometimes you may want to use chip but it’s too big, even if set padding to zero. This is where Badge comes handy.

    Chip(
      backgroundColor: Colors.deepPurple,
      padding: EdgeInsets.all(0),
      label: Text('BADGE', style: TextStyle(color: Colors.white)),
    ),
    Badge(
      badgeColor: Colors.deepPurple,
      shape: BadgeShape.square,
      borderRadius: 20,
      toAnimate: false,
      badgeContent:
          Text('BADGE', style: TextStyle(color: Colors.white)),
    ),

Custom Usage

There are several options that allow for more control:

Properties	Description
Widget badgeContent	The content of badge. Usually Text or Icon.
Color badgeColor	Background color of the badge.
Widget child	The main widget. By default it’s below the red badge. Usually Icon, IconButton, Text or button.
double elevation	Shadow of the badge.
bool toAnimate	Whether animate badge when badge content changed or not.
BadgePosition position	Can be one of BadgePosition.topLeft(), BadgePosition.topRight(), BadgePosition.bottomLeft(), BadgePosition.bottomRight(). Sometimes you want to create unique badge position or create new one manually. For this use BadgePosition.topRight(top: -12, right: -20) or BadgePosition.(left, top, right, bottom).
BadgeShape shape	BadgeShape.circle or BadgeShape.square. You can use borderRadius to change border radius of badge of you use square BadgeShape.square.
double borderRadius	Border radius of badge. Applies only if BadgeShape.square is used.
EdgeInsets padding	The padding of badge content.
Duration animationDuration	The duration of badge animation when badge content is changed.
BadgeAnimationType animationType	Can be one of BadgeAnimationType.slide, BadgeAnimationType.scale or BadgeAnimationType.fade.
bool showBadge	Hide or show a badge with animation using bool flag.

Check out Souce Code of A flutter package for creating badges on GitHub

https://github.com/yako-dev/flutter_badges