huixiang_app/lib/community/community_details.dart

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:huixiang/community/community_view/community_comment.dart';
import 'package:huixiang/community/community_view/community_dynamic.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:huixiang/retrofit/data/activity.dart';
import 'package:huixiang/retrofit/data/article.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:huixiang/retrofit/data/comunity_comment.dart';
import 'package:huixiang/retrofit/data/member_comment_list.dart';
import 'package:huixiang/retrofit/data/page.dart';
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/comment_menu.dart';
import 'package:huixiang/view_widget/login_tips_dialog.dart';
import 'package:huixiang/view_widget/tips_dialog.dart';
import 'package:huixiang/web/web_view/comment_list.dart';
import 'package:huixiang/web/web_view/input_comment.dart';
import 'package:shared_preferences/shared_preferences.dart';

class CommunityDetails extends StatefulWidget {
  final Map<String, dynamic> arguments;

  CommunityDetails({this.arguments});

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

class _CommunityDetails extends State<CommunityDetails>
    with WidgetsBindingObserver {
  double height = 0;
  double commentHeight = 60.h;
  ComunityComment comunity;
  String parenId = "0";
  final GlobalKey commentKey = GlobalKey();
  final ScrollController scrollController = ScrollController();

  List<MemberCommentList> memberList = [];
  ApiService apiService;
  var commentFocus = FocusNode();

  String hintText = S.current.liuxianinjingcaidepinglunba;
  bool isKeyBoardShow = false;
  int commentTotal = 0;
  Article article;


  @override
  void didChangeMetrics() {
    WidgetsBinding.instance.addPostFrameCallback((_) {
      if (!mounted) return;
      if (MediaQuery.of(context).viewInsets.bottom == 0) {
        if (isKeyBoardShow) {
          FocusScope.of(context).requestFocus(FocusNode());
          setState(() {
            hintText = S.current.liuxianinjingcaidepinglunba;
            isKeyBoardShow = false;
          });
        }
      } else {
        setState(() {
          isKeyBoardShow = true;
        });
      }
    });
  }

  @override
  void initState() {
    super.initState();
    comunity = widget.arguments["comment"];
    WidgetsBinding.instance.addObserver(this);

    _queryMemberCommentList();
    queryDetails();
  }

  ///详情接口
  queryDetails() async {
    SharedPreferences value = await SharedPreferences.getInstance();
    if (apiService == null)
      apiService =
          ApiService(Dio(), context: context, token: value.getString("token"));
      BaseData<Article> baseData = await apiService
          .informationInfo(comunity.id)
          .catchError((onError) {});
      if (baseData != null && baseData.isSuccess) {
      }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: Container(
            child: Column(
      children: [
        Expanded(
          child: NestedScrollView(
            headerSliverBuilder: (context, position) {
              return [
                SliverOverlapAbsorber(
                  handle:
                      NestedScrollView.sliverOverlapAbsorberHandleFor(context),
                  sliver: SliverAppBar(
                    expandedHeight: (height == 0) ? 614 : height,
                    pinned: true,
                    backgroundColor: Colors.white,
                    title: Text(
                      "动态详情",
                      style: TextStyle(
                        color: Colors.black,
                        fontSize: 18.sp,
                        fontWeight: MyFontWeight.semi_bold,
                      ),
                    ),
                    elevation: 0,
                    leading: GestureDetector(
                      onTap: () {
                        Navigator.of(context).pop();
                      },
                      child: Container(
                        alignment: Alignment.centerRight,
                        margin: EdgeInsets.only(left: 10),
                        padding: EdgeInsets.all(6),
                        child: Icon(
                          Icons.arrow_back_ios,
                          color: Colors.black,
                          size: 24,
                        ),
                      ),
                    ),
                    flexibleSpace: FlexibleSpaceBar(
                      //Colors.white,
                      background: Container(
                        padding: EdgeInsets.only(
                          top: MediaQuery.of(context).padding.top +
                              kToolbarHeight,
                        ),
                        color: Colors.white,
                        child: CommunityDynamic(
                          comunity,0,
                          itemCount: 3,
                          isDetails: true,
                          heightFun: (height) {
                            this.height = height +
                                MediaQuery.of(context).padding.top +
                                kToolbarHeight +
                                68;
                            setState(() {});
                          },
                        ),
                      ),
                      collapseMode: CollapseMode.pin,
                    ),
                    bottom: PreferredSize(
                      preferredSize: Size(
                        MediaQuery.of(context).size.width,
                        46,
                      ),
                      child: Container(
                        padding: EdgeInsets.all(16),
                        margin: EdgeInsets.only(top: 16.h),
                        color: Colors.white,
                        child: Row(
                          children: [
                            Text(
                              S.of(context).pinglun_(commentTotal.toString()),
                              style: TextStyle(
                                fontSize: 14,
                                fontWeight: FontWeight.bold,
                                color: Color(0xff1A1A1A),
                              ),
                            ),
                            SizedBox(
                              width: 16.w,
                            ),
                            Text(
                              S.of(context).xihuan_(
                                  "${comunity?.likes ?? comunity?.likes ?? "0"}"),
                              style: TextStyle(
                                fontSize: 14,
                                fontWeight: FontWeight.bold,
                                color: Color(0xff1A1A1A),
                              ),
                            ),
                          ],
                        ),
                      ),
                    ),
                  ),
                ),
              ];
            },
            body: Container(
              height: MediaQuery.of(context).size.height -
                  MediaQuery.of(context).padding.top +
                  kToolbarHeight -
                  68,
              margin: EdgeInsets.only(top: 50 + kToolbarHeight),
              child: Column(
                children: [
                  if (memberList != null && memberList.length > 0)
              Expanded(child: ListView.builder(
                      shrinkWrap: true,
                      physics: NeverScrollableScrollPhysics(),
                      itemCount: memberList != null ? memberList.length : 0,
                      scrollDirection: Axis.vertical,
                      itemBuilder: (context, position) {
                        return Material(
                          color: Colors.white,
                          child: InkWell(
                            onTap: () {
                              showPressMenu(memberList[position].createUser,
                                  memberList[position]);
                            },
                            child: CommunityComment(
                              memberList[position],
                              _queryCommentLike,
                                (memberList.length-1 == position)?1:0
                            ),
                          ),
                        );
                      },
                    )),
                  if (memberList == null || memberList.length == 0)
                    Container(
                      width: double.infinity,
                      alignment: Alignment.topCenter,
                      padding: EdgeInsets.all(22.h),
                      child: Text(
                        S.of(context).zanwupinglun,
                        style: TextStyle(
                          fontSize: 12,
                          fontWeight: FontWeight.bold,
                          color: Color(0xFFA0A0A0),
                        ),
                      ),
                    ),
                ],
              ),
            ),
          ),
          flex: 1,
        ),

        /// 富文本评论的输入框
        InputComment(
          inputKey,
          hintText,
          isKeyBoardShow,
          commentFocus,
          commentTextController,
          _toComment,
          _queryMemberComment,
          _queryInformationLikes,
          isLike: comunity.selfLike,
        ),
      ],
    )));
  }

  ///给文章/活动点赞
  _queryInformationLikes() async {
    BaseData baseData = await apiService.informationLikes(comunity.id);
    if (baseData != null && baseData.isSuccess) {
      // commentKey.currentState.setState(() {});
      setState(() {
        if(comunity.selfLike??false)
          comunity.likes -= 1;
        else comunity.likes += 1;
        comunity.selfLike = !comunity.selfLike??false;
      });
    } else {
      SmartDialog.showToast(baseData.msg, alignment: Alignment.center);
    }
  }

  ///发布评论
  _queryMemberComment(String content) async {
    BaseData baseData = await apiService.memberComment({
      "content": content,
      "parentId": parenId,
      "relationalId": comunity.id,
      "relationalType": 1
    }).catchError((error) {});
    if (baseData != null && baseData.isSuccess) {
      // commentKey.currentState.initState();
      commentTextController.text = "";
      FocusScope.of(context).unfocus();
      _queryMemberCommentList();
    }
  }

  ///滑动到评论列表
  _toComment() {
    if (commentKey.currentContext == null) return;
    RenderBox firstRenderBox = commentKey.currentContext.findRenderObject();
    Offset first = firstRenderBox.localToGlobal(Offset.zero);
    scrollController.animateTo(
        first.dy +
            scrollController.offset -
            (kToolbarHeight + MediaQuery.of(context).padding.top),
        duration: Duration(milliseconds: 300),
        curve: Curves.easeIn);
  }

  final GlobalKey inputKey = GlobalKey();
  final TextEditingController commentTextController = TextEditingController();

  contentHeight() {
    double contentHeight = MediaQuery.of(context).size.height -
        kToolbarHeight -
        MediaQuery.of(context).padding.top -
        160.h;
    if ((contentHeight - 60.h) > (128.h * memberList.length)) {
      commentHeight = contentHeight - (128.h * memberList.length);
    }
  }

  showPressMenu(String userId, memberComment) {
    if (isKeyBoardShow) {
      FocusScope.of(context).requestFocus(FocusNode());
      return;
    }
    SharedPreferences.getInstance().then((value) {
      SmartDialog.show(
        widget: CommentMenu(
          (type) {
            SmartDialog.dismiss();
            if (type == "huifu") {
              _reply(memberComment);
            } else if (type == "shanchu") {
              _delCommentTips();
            }
          },
          isSelf: userId == value.getString("userId"),
        ),
        alignmentTemp: Alignment.bottomCenter,
        isUseAnimationTemp: true,
        animationDurationTemp: Duration(milliseconds: 300),
      );
    });
  }

  ///删除评论的提示
  _delCommentTips() {
    SmartDialog.show(widget: Tips(() {
      delComment();
    }));
  }

  ///删除评论
  delComment() async {
    BaseData baseData = await apiService.delComment("");
    if (baseData != null && baseData.isSuccess) {
      // commentKey.currentState.initState();
    }
  }

  ///评论 回复
  _reply(memberComment) {
    FocusScope.of(context).requestFocus(commentFocus);
    parenId = memberComment.id;
    hintText = S.of(context).huifu_("${memberComment.username}");
  }

  ///评论点赞
  _queryCommentLike(String id) async {
    SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
    String token = sharedPreferences.getString("token");
    if (token == null || token == "") {
      LoginTipsDialog().show(context);
      return;
    }
    BaseData baseData = await apiService.commentLike(id).catchError((error) {});
    if (baseData != null && baseData.isSuccess) {
      memberList.forEach((element) {
        if (element.id == id) {
          if (element.liked) {
            element.likes -= 1;
            element.liked = false;
          } else {
            element.likes += 1;
            element.liked = true;
          }
        }
      });
    }
  }

  ///评论列表
  _queryMemberCommentList() async {
    SharedPreferences sharedPreferences = await SharedPreferences.getInstance();
    if (apiService == null)
      apiService = ApiService(
        Dio(),
        context: context,
        token: sharedPreferences.getString("token"),
        showLoading: false,
      );
    BaseData<PageInfo<MemberCommentList>> baseData =
        await apiService.memberCommentList({
      "pageNum": 1,
      "pageSize": 100,
      "relationalId": comunity.id,
      "relationalType": 1,
    }).catchError((error) {});
    if (baseData != null && baseData.isSuccess) {
      commentTotal = baseData.data.size;
      memberList = baseData.data.list;
      contentHeight();
      setState(() {});
    }
  }
}