Flutter 在 Android 中实现微信支付

Flutter Android 中实现微信支付 sy_flutter_wechat

Android 微信支付注意事项

说明:微信支付没法直接连接调试工具测试，如果直接连接会返回-1，所有这个时候我们重 新用我们以前的签名文件生成签名，然后发到手机测试。
注意:
1、微信开放平台必须配置 应用包名 和 应用签名

2、android 应用包名称必须和微信开放平台配置的一样 3、微信开放平台配置应用签名的时候使用的 keystore 文件必须和正式打包的 keystore 签名 文件一致。
4、代码中配置的 Appid 必须和开放平台一致
5、生成预支付信息的服务器 API 接口得提前准备好
6、android 必须正式打包后才能进行微信支付

import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:sy_flutter_wechat/sy_flutter_wechat.dart';
import 'package:dio/dio.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application. @override
  Widget build(BuildContext context) {
    return MaterialApp( title: 'Flutter Demo', theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see
      the
      try
      invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
      primarySwatch: Colors.blue, ),
      home: HomePage(), );
  } }
class HomePage extends StatefulWidget {
  HomePage({Key key}) : super(key: key);
  _HomePageState createState() => _HomePageState(); }
class _HomePageState extends State<HomePage> {
  @override
  void initState() {
    super.initState();
    _register();
  }
  _register() async {
    bool result = await SyFlutterWechat.register('wx5881fa2638a2ca60'); print(result);
  }
  _weixinPay() async{
    var apiUrl='http://agent.itying.com/wxpay/'; var myPayInfo =await Dio().get(apiUrl);
// application has a blue toolbar. Then, without quitting the app,
// changing the primarySwatch below to Colors.green and then

    Map myInfo =json.decode(myPayInfo.data); print(myInfo);
    var payInfo={ "appid":myInfo["appid"].toString(), "partnerid":myInfo["partnerid"].toString(), "prepayid":myInfo["prepayid"].toString(), "package":myInfo["package"].toString(), "noncestr":myInfo["noncestr"].toString(), "timestamp":myInfo["timestamp"].toString(), "sign":myInfo["sign"].toString(),
    };
    SyPayResult payResult = await SyFlutterWechat.pay(
        SyPayInfo.fromJson(payInfo)); print(payResult);
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("微信"), ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[
          RaisedButton(
            child: Text('分享文字'), onPressed: () async {
            bool res = await SyFlutterWechat.shareText('hello
                shareType: SyShareType.session); print('分享文字:' + res.toString());
          }, ),
          RaisedButton(
            child: Text('分享图片'), onPressed: () async {
            bool res = await SyFlutterWechat.shareImage( 'https://avatars0.githubusercontent.com/u/10024776',
                world',


                shareType: SyShareType.timeline); print('分享图片:' + res.toString());
          }, ),
          RaisedButton(
            child: Text('分享网页'), onPressed: () async {
            bool res = await SyFlutterWechat.shareWebPage( '标题',
                '描述',
                'https://avatars0.githubusercontent.com/u/10024776', 'http://www.example.com',
                shareType: SyShareType.session); print('分享网页:' + res.toString());
          }, ),
          RaisedButton(
            child: Text('支付'), onPressed: _weixinPay,
          ), ],
        ), ),
    ); }
}