flutter获取项目版本号

在pubspec.yaml文件中确保已经有 package_info 的版本信息

dependencies:
  flutter:
    sdk: flutter

  package_info: ^2.0.2 //添加这一行

引用

import 'package:package_info/package_info.dart';

Future<void> getVersion() async {

    PackageInfo packageInfo = await PackageInfo.fromPlatform();

    return  packageInfo.version
}