fluwx/example/lib/launch_mini_program_page.dart

import 'package:flutter/material.dart';
import 'package:fluwx/fluwx.dart' as fluwx;

class LaunchMiniProgramPage extends StatefulWidget {
  @override
  _LaunchMiniProgramPageState createState() => _LaunchMiniProgramPageState();
}

class _LaunchMiniProgramPageState extends State<LaunchMiniProgramPage> {
  String _result = "无";

  @override
  void initState() {
    super.initState();
    fluwx.responseFromLaunchMiniProgram.listen((data) {
      setState(() {
        _result = "${data.extMsg}";
      });
    });
  }

  @override
  void dispose() {
    super.dispose();
    _result = null;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Launch MiniProgrom"),
      ),
      body: Column(
        children: <Widget>[
          OutlineButton(
            onPressed: () {
              fluwx.launchMiniProgram(username: "gh_d43f693ca31f").then((data) {
                print(data);
              });
            },
            child: const Text("Launch MiniProgrom"),
          ),
          const Text("响应结果;"),
          Text(_result)
        ],
      ),
    );
  }
}