• 将字体放入assets/fonts下

• 在pubspec.yaml文件中flutter下添加如下代码：

flutter:
  fonts:
    - family: MyCustomFont
      fonts:
        - asset: assets/fonts/MyCustomFont.ttf

• 在flutter Text widget中使用字体

import 'package:flutter/material.dart';
 
void main() => runApp(MyApp());
 
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('自家字体使用'),
        ),
        body: Center(
          child: Text(
            '我是自家字体',
            style: TextStyle(fontFamily: 'MyCustomFont'),
          ),
        ),
      ),
    );
  }
}