flutter-sport/lib/widgets/menu_share_bottom.dart

import 'dart:io';
import 'dart:typed_data';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:image_gallery_saver/image_gallery_saver.dart';
import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:provider/provider.dart';
import 'package:sport/application.dart';
import 'package:sport/bean/forum.dart';
import 'package:sport/bean/post.dart';
import 'package:sport/pages/social/post_page.dart';
import 'package:sport/pages/social/post_share_page.dart';
import 'package:sport/pages/social/share_webview.dart';
import 'package:sport/provider/user_model.dart';
import 'package:sport/router/navigator_util.dart';
import 'package:sport/services/api/inject_api.dart';
import 'package:sport/services/api/resp.dart';
import 'package:sport/sharesdk/tencent.dart';
import 'package:sport/sharesdk/wechat.dart';
import 'package:sport/utils/toast.dart';
import 'package:sport/widgets/space.dart';
import 'package:umeng_common_sdk/umeng_common_sdk.dart';
import 'package:wechat_kit/wechat_kit.dart';

class MenuShareBottomContent extends StatefulWidget {
  final String? url; // 复制的那个链接
  final bool hasDownload; // 有些又download 有些没download
  final GlobalKey? poster; // 下载海报...
  final String shareType; // 什么类型 Img social Link
  final Post? post; // social 连带的 post
  final String? hash; // 分享 link 连带的hash
  final String? file; // 分享 link 连带的hash
  final bool app; // 分享 是否显示app内功能
  MenuShareBottomContent(this.shareType, {this.post, this.url = "", this.hasDownload = false, this.poster, this.hash, this.file, this.app = true});

  @override
  State<StatefulWidget> createState() {
    return _MenuShareBottomContentState();
  }
}

// shareType : Img / Link / Social
class _MenuShareBottomContentState extends State<MenuShareBottomContent> with TencentMixin, WechatMixin, InjectApi {
  late List<Map<String, dynamic>> map;
  Uint8List? postInstance;

  @override
  listenWechatShareMsg(ShareMsgResp resp) {
    Navigator.pop(context);
    ToastUtil.show("分享成功");
  }

  @override
  void initState() {
    super.initState();
    map = [
      {
        "value": "微信",
        "url": "share_icon_wechat",
        "callBack": () async {
          if (widget.shareType == "Img") {
            String path = await initFile();
            wechatShareImage(path, "chat");
          } else if (widget.shareType == "Link") {
            wechatShareLink(widget.url ?? "" + "?h=${widget.hash}", "chat", Provider.of<UserModel>(context, listen: false).user.name);
          } else if (widget.shareType == "Video") {
            String path = await initFile();
            wechatShareVideo(path, "chat");
          }

          UmengCommonSdk.onEvent("share_wechat", {});
        }
      },
      {
        "value": "朋友圈",
        "url": "share_icon_wechatmonents",
        "callBack": () async {
          if (widget.shareType == "Img") {
            String path = await initFile();
            wechatShareImage(path, "friend");
          } else if (widget.shareType == "Link") {
            wechatShareLink(widget.url ?? "" + "?h=${widget.hash}", "friend", Provider.of<UserModel>(context, listen: false).user.name);
          }
          UmengCommonSdk.onEvent("share_wechatmonents", {});
        }
      },
      {
        "value": "QQ",
        "url": "share_icon_qq",
        "callBack": () async {
          if (widget.shareType == "Img") {
            String path = await initFile();
            tencentShare(path);
          } else if (widget.shareType == "Link") {
            tencentShareLink(widget.url ?? "");
          }
          UmengCommonSdk.onEvent("share_tencent", {});
        }
      },
      if(widget.app && openSocial())
      {
        "value": "社区",
        "url": "share_icon_community",
        "callBack": () async {
          UmengCommonSdk.onEvent("share_community", {});
          // if(widget.post == null)
          //   return;
          List<Forum> buttonList = [];
          RespList<Forum> data = await api.getForumIndex();
          buttonList = data.results;
          if (data.results.length > 0) {
            buttonList.insert(0, new Forum(gameName: "全部"));
          }
          if (widget.shareType == "social") {
            await NavigatorUtil.goPage(
                context,
                (contxt) => PostPage(
                      "",
                      post: widget.post,
                  forums: buttonList,
                    ));
          } else if (widget.shareType == "Link") {
            await NavigatorUtil.goPage(
                context,
                (contxt) => PostPage(
                      "",
                      post: widget.post,
                      url: widget.url,
                      hash: widget.hash,
                      forums: buttonList,
                    ));
          } else if (widget.shareType == "Img") {
            String path = await initFile();
            print("$path---------------------------------");
            await NavigatorUtil.goPage(
                context,
                (context) => PostPage(
                      "",
                      image: path,
                      forums: buttonList,
                    ));
          }
          Navigator.pop(context, true);
        }
      },
      if(widget.app && openSocial())
      {
        "value": "社区好友",
        "url": "share_icon_friends",
        "callBack": () async {
          UmengCommonSdk.onEvent("share_friend", {});
          if (widget.shareType == "social") {
            await NavigatorUtil.goPage(
                context,
                (context) => PostShareFriendsPage(
                      post: widget.post,
                    ));
          } else if (widget.shareType == "Link") {
            // 这里可能得组装一手 link 的 数据 ...
            await NavigatorUtil.goPage(context, (context) => PostShareFriendsPage(hash: widget.hash));
          } else if (widget.shareType == "Img") {
            String path = await initFile();
            String url = (await api.postChatUpload(File(path))).data["url"];

            await NavigatorUtil.goPage(
                context,
                (context) => PostShareFriendsPage(
                      image: url,
                    ));
          }
          Navigator.pop(context, true);
        }
      },
      if (widget.url?.isNotEmpty == true)
        {
        "value": "复制链接",
        "url": "share_icon_link",
        "callBack": () {
          UmengCommonSdk.onEvent("share_copy", {});
          Clipboard.setData(ClipboardData(text: widget.url));
          ToastUtil.show("复制成功");
        }
      },
      if (widget.hasDownload == true)
      {
        "value": "下载图片",
        "url": "share_icon_download",
        "callBack": () {
          UmengCommonSdk.onEvent("share_download", {});
          _capture().then((file) async {}).whenComplete(() {
            print("Complete-------------------------------------------------");
          });
        }
      },
    ];

    // 社区暂时先把前面的隐藏掉
    if (widget.shareType == "social") {
      map = map.sublist(map.length - 2, map.length);
    }
  }

  // 封装成灵活的更通用一点...
  Future<String> initFile() async {
    if (widget.file?.isNotEmpty == true) return widget.file!;

    Uint8List pngBytes = await initFileUint8List();
    print("$pngBytes------------------------------");
    String sTempDir = (await getTemporaryDirectory()).path;
    bool isDirExist = await Directory(sTempDir).exists();
    if (!isDirExist) {
      Directory(sTempDir).create();
    }
    // QQ分享需要一个确实存在的图片
    File file = await File(sTempDir + "/poster-temp-${DateTime.now().millisecondsSinceEpoch}.png").writeAsBytes(pngBytes);
    Future.delayed(new Duration(milliseconds: 200));
    print("[file]:${file.readAsBytesSync().length}---------------${pngBytes.length}----------------");
    return file.path;
  }

  Future<Uint8List> initFileUint8List() async {
    if(widget.poster == null) return Uint8List.fromList([0]);
    try {
      RenderObject? renderObject = widget.poster!.currentContext?.findRenderObject();
      //boundary.toImage()转化为ui.Image对象,不会自动为包裹的组件添加背景，不设置可能会缺失背景
      if(renderObject is RenderRepaintBoundary) {
        RenderRepaintBoundary boundary = renderObject;
        var image = await boundary.toImage(pixelRatio: window.devicePixelRatio);
        //将image转化为byteData
        ByteData? byteData = await image.toByteData(format: ImageByteFormat.png);
        if (byteData == null) return Uint8List.fromList([0]);
        //这个对象就是图片数据
        Uint8List pngBytes = byteData.buffer.asUint8List();

        print("成功生成图片 ----------------------------------------");
        return pngBytes;
      }
    } catch (e) {
      print(e);
    }
    return Uint8List.fromList([0]);
  }

  Future<File?> _capture() async {
    var permission = await Permission.storage.request();
    if (!permission.isGranted) {
      ToastUtil.show("没有保存文件的权限");
      return null;
    }
    var result ;
    if (widget.file?.isNotEmpty == true) {
      result = await ImageGallerySaver.saveFile(widget.file!);
    }else {
      Uint8List pngBytes = await initFileUint8List();
      result = await ImageGallerySaver.saveImage(pngBytes);
    }
    if (result != null && result["isSuccess"] == true) ToastUtil.show("下载成功");
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: EdgeInsets.fromLTRB(12, 23, 24, 17),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: <Widget>[
          Row(
            children: <Widget>[
              Expanded(
                child: Divider(
                  endIndent: 12.0,
                ),
              ),
              Text(
                "分享至",
                style: Theme.of(context).textTheme.bodyText2!,
              ),
              Expanded(
                child: Divider(
                  indent: 12.0,
                ),
              )
            ],
          ),
          SizedBox(
            height: 20.0,
          ),
          Wrap(
            children: map
                .map((e) => InkWell(
                      child: FractionallySizedBox(
                          widthFactor: .25,
                          child: Container(
                            padding: EdgeInsets.symmetric(horizontal: 5, vertical: 6),
                            child: Center(
                              child: Column(
                                mainAxisSize: MainAxisSize.min,
                                crossAxisAlignment: CrossAxisAlignment.center,
                                children: <Widget>[
                                  Image.asset(
                                    "lib/assets/img/${e["url"]}.png",
                                    width: 44.0,
                                    height: 44.0,
                                  ),
                                  Space(
                                    height: 4.0,
                                  ),
                                  Text(
                                    "${e["value"]}",
                                    style: Theme.of(context).textTheme.subtitle2,
                                  ),
//                              Space(height: 8.0,),
                                ],
                              ),
                            ),
                          )),
                      onTap: () {
                        e["callBack"]();
                      },
                    ))
                .toList(),
          )
        ],
      ),
    );
  }
}

Future<bool?> menuShareBottom(BuildContext context, String shareType, {Post? post, String? url, bool hasDownload = true, GlobalKey? poster, String? hash}) {
  return showModalBottomSheet(
    context: context,
    builder: (context) {
      return MenuShareBottomContent(shareType, post: post, url: url, hasDownload: hasDownload, poster: poster, hash: hash);
    },
    backgroundColor: Colors.white,
    elevation: 10,
    shape: RoundedRectangleBorder(
      borderRadius: BorderRadius.only(topLeft: Radius.circular(10), topRight: Radius.circular(10)),
    ),
  );
}