uppay 0.0.4

云闪付Flutter插件，目前支持android、ios平台。

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:uppay/uppay.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  final _uppayPlugin = Uppay();

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion =
          await _uppayPlugin.getPlatformVersion() ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  _isPaymentAppInstalled() async {
    bool? installed = await _uppayPlugin.isPaymentAppInstalled('00', '123456');
    if (installed != null) {
      print(installed == true ? '已安装' : '未安装');
    } else {
      print('安装未知');
    }
  }

  _startPay() async {
    // scheme 可选参数 用于iOS，安卓可不填
    bool? success = await _uppayPlugin.startPay('123456', '01',
        scheme: 'baomoonLotteryUppay');
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
          appBar: AppBar(
            title: const Text('Plugin example app'),
          ),
          body: Container(
            alignment: Alignment.center,
            child: Column(
              children: [
                const SizedBox(
                  height: 30,
                ),
                Center(
                  child: Text('Running on: $_platformVersion\n'),
                ),
                const SizedBox(
                  height: 10,
                ),
                TextButton(
                  style: ButtonStyle(
                    backgroundColor: MaterialStateProperty.all<Color>(
                        const Color(0xFFf2f2f2)),
                  ),
                  onPressed: () {
                    _isPaymentAppInstalled();
                  },
                  child: const Text('查询是否安装云闪付'),
                ),
                const SizedBox(
                  height: 10,
                ),
                TextButton(
                  style: ButtonStyle(
                    backgroundColor: MaterialStateProperty.all<Color>(
                        const Color(0xFFf2f2f2)),
                  ),
                  onPressed: () {
                    _startPay();
                  },
                  child: const Text('调用云闪付'),
                )
              ],
            ),
          )),
    );
  }
}