flutter-sport/lib/sharesdk/wechat.dart

import 'dart:async';
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:sport/utils/toast.dart';
import 'package:wechat_kit/wechat_kit.dart';

const String WECHAT_APPID = 'wx9455bd2742259ef7';
const String WECHAT_UNIVERSAL_LINK = 'https://xie.hiyd.com/'; // iOS 请配置
const String WECHAT_APPSECRET = 'c58946da98393252077073c29c828d08';
const String WECHAT_MINIAPPID = 'your wechat miniAppId';

mixin WechatMixin<T extends StatefulWidget> on State<T> {
  late Wechat _wechat;

  late final StreamSubscription<BaseResp> _respSubs;

  void _listenResp(BaseResp resp) {
    if(resp.isSuccessful != true) return;
    if (resp is AuthResp) {
      listenWechatLoginMsg(resp);
    } else if (resp is ShareMsgResp) {
      listenWechatShareMsg(resp);
    } else if (resp is PayResp) {
    } else if (resp is LaunchMiniProgramResp) {
    }
  }

  listenWechatShareMsg(ShareMsgResp resp) {}
  listenWechatLoginMsg(AuthResp resp) {}

  @override
  void initState() {
    super.initState();
    _wechat = Wechat.instance;
    _respSubs = Wechat.instance.respStream().listen(_listenResp);

  }

  @override
  void dispose() {
    _respSubs.cancel();
    super.dispose();
  }


  Future<bool> wechatSupport() async {
    return await _wechat.isInstalled() || await _wechat.isSupportApi();
  }

  // wechat 登录
  Future<bool> wechatLogin() async {
    await _wechat.registerApp(
      appId: WECHAT_APPID,
      universalLink: WECHAT_UNIVERSAL_LINK,
    );
    if (await _wechat.isInstalled() && await _wechat.isSupportApi()) {
      _wechat.auth(
        scope: <String>[WechatScope.SNSAPI_USERINFO],
        state: 'auth',
      );
      return true;
    }else {
      ToastUtil.show("您没有安装微信客户端");
    }
    return false;
  }

  void wechatSharePage() async{
    await _wechat.registerApp(
      appId: WECHAT_APPID,
      universalLink: WECHAT_UNIVERSAL_LINK,
    );
    _wechat.shareWebpage(
      scene: WechatScene.TIMELINE,
      webpageUrl: 'https://www.baidu.com',
    );
  }

//  void wechatShareImage() async {
//    Dio dio = new Dio();
//    Directory documentsDir = await getApplicationDocumentsDirectory();
//    String documentsPath = documentsDir.path;
//    String path = "$documentsPath/demo/game.jpg";
//    await dio.download("https://ss2.bdstatic.com/70cFvnSh_Q1YnxGkpoWK1HF6hhy/it/u=229276664,935794386&fm=26&gp=0.jpg", "$path",
//        options: Options(headers: {HttpHeaders.acceptEncodingHeader: "*"}), // disable gzip
//        onReceiveProgress: (received, total) {
//      if (total != -1) {}
//    });
//    print(path);
//    await _wechat.shareImage(scene: WechatScene.SESSION, imageData: File(path).readAsBytesSync());
//  }

  Future<void> wechatShareImage(String path, String type) async {

    await _wechat.registerApp(
      appId: WECHAT_APPID,
      universalLink: WECHAT_UNIVERSAL_LINK,
    );

    if (type == "chat") {
      // 这是 聊天
      return _wechat.shareImage(scene: WechatScene.SESSION, imageUri: File(path).uri);
    } else if (type == "friend") {
      // 这是朋友圈
      return _wechat.shareImage(scene: WechatScene.TIMELINE, imageUri: File(path).uri);
    }
  }

  Future<void> wechatShareLink(String url, String type, String username) async {
    await _wechat.registerApp(
      appId: WECHAT_APPID,
      universalLink: WECHAT_UNIVERSAL_LINK,
    );
    if (type == "chat") {
      await _wechat.shareWebpage(scene: WechatScene.SESSION, webpageUrl: url, title: "$username分享了他的运动记录，快来围观吧~", description: "$username分享了他的运动记录，快来围观吧~");
    } else if (type == "friend") {
      await _wechat.shareWebpage(scene: WechatScene.TIMELINE, webpageUrl: url, title: "$username分享了他的运动记录，快来围观吧~", description: "$username分享了他的运动记录，快来围观吧~");
    }
    return;
  }

  Future<void> wechatShareVideo(String path, String type) async {
    await _wechat.registerApp(
      appId: WECHAT_APPID,
      universalLink: WECHAT_UNIVERSAL_LINK,
    );
    if (type == "chat") {
      // 这是 聊天
      return _wechat.shareVideo(scene: WechatScene.SESSION, videoUrl: File(path).uri.toString());
    } else if (type == "friend") {
      // 这是朋友圈
      return _wechat.shareVideo(scene: WechatScene.TIMELINE, videoUrl: File(path).uri.toString());
    }
  }

}