Use of Flutter packages and plugins

1. Go to https://pub.dev/ to find packages and plug-ins such as flutter_COLOR_plugin

After opening, there are specific installation methods

2, installation,

3, import package: import ‘package: flutter_COLOR_plugin/flutter_COLOR_plugin. dart’;

4, the use of

body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'You have pushed the button this many times:',
              style: TextStyle(color: ColorUtil.color('# 899900')),
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.display1,
            ),
          ],
        ),
      ),
Copy the code

5. Effect: Changed the font color