huixiang_app/lib/community/community_view/community_dynamic.dart

import 'dart:convert';
import 'dart:ui';
import 'package:chewie/chewie.dart';
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:huixiang/retrofit/data/article.dart';
import 'package:huixiang/retrofit/data/base_data.dart';
import 'package:chewie/src/chewie_progress_colors.dart' as chewie;
import 'package:huixiang/retrofit/retrofit_api.dart';
import 'package:huixiang/utils/font_weight.dart';
import 'package:huixiang/view_widget/border_text.dart';
import 'package:huixiang/view_widget/custom_image.dart';
import 'package:huixiang/view_widget/icon_text.dart';
import 'package:huixiang/view_widget/round_button.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:video_player/video_player.dart';

import '../photo_view_gallery_screen.dart';

class CommunityDynamic extends StatefulWidget {
  final int itemCount;
  final Function(double height) heightFun;
  final bool isDetails;
  final int commentType;
  final Function removalDynamic;
  final Function exitFull;
  final bool isList;
  final Article article;
  final String userId;

  CommunityDynamic(
    this.article,
    this.commentType, {
    Key key,
    this.itemCount = 9,
    this.heightFun,
    this.isDetails = false,
    this.removalDynamic,
    this.exitFull,
    this.userId,
    this.isList = false,
  }) : super(key: key);

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

class _CommunityDynamic extends State<CommunityDynamic> {
  GlobalKey globalKey = GlobalKey();
  double height = 0;
  ApiService apiService;

  VideoPlayerController videoPlayerController;
  ChewieController chewieAudioController;
  Chewie chewies;

  @override
  void initState() {
    super.initState();
    SharedPreferences.getInstance().then(
      (value) => {
        apiService = ApiService(
          Dio(),
          context: context,
          token: value.getString('token'),
        ),
      },
    );
    initVideo();
  }

  String filePath;

  initVideo() async {
    if (widget?.article?.content == null) return;
    var cnt = jsonDecode(widget.article.content);
    if (cnt["type"] == "video" && cnt["video"] != null) {
      if (widget.isList) {
        videoPlayerController = VideoPlayerController.network(
          cnt["video"],
        )..initialize().then((value) {});
      } else {
        videoPlayerController = VideoPlayerController.network(
          cnt["video"],
        )..initialize().then((value) {
            chewieAudioController = ChewieController(
              videoPlayerController: videoPlayerController,
              aspectRatio: videoPlayerController.value.aspectRatio,
              //宽高比
              autoPlay: false,
              //自动播放
              looping: false,
              //循环播放
              allowFullScreen: true,
              // 拖动条样式颜色
              materialProgressColors: chewie.ChewieProgressColors(
                playedColor: Colors.white,
                handleColor: Colors.white,
                backgroundColor: Colors.grey,
                bufferedColor: Colors.transparent,
              ),
              autoInitialize: true,
            );
            chewieAudioController.addListener(_fullScreenListener);
            if (mounted) setState(() {});
          });
      }
    }
  }

  ///关注/取关会员
  _vipFollow(followId, isFollow) async {
    BaseData baseData = await apiService.follow(followId);
    if (baseData != null && baseData.isSuccess) {
      widget.exitFull();
      SmartDialog.showToast(isFollow ? "关注成功" : "取关成功",
          alignment: Alignment.center);
      setState(() {});
    } else {
      // SmartDialog.showToast(baseData.msg, alignment: Alignment.center);
    }
  }

  ///删除动态
  _deleteDynamic(id) async {
    BaseData baseData = await apiService.deleteTrend(id);
    if (baseData != null && baseData.isSuccess) {
      widget.exitFull();
      SmartDialog.showToast("删除成功", alignment: Alignment.center);
      setState(() {});
    } else {
      // SmartDialog.showToast(baseData.msg, alignment: Alignment.center);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Container(
          margin: EdgeInsets.only(top: 2),
          key: globalKey,
          alignment: Alignment.topCenter,
          padding: EdgeInsets.all(16),
          decoration: BoxDecoration(
            color: Colors.white,
            boxShadow: [
              BoxShadow(
                color: Color(0x08000000),
                offset: Offset(0, 1),
                blurRadius: 8,
                spreadRadius: 0,
              ),
            ],
          ),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.start,
            mainAxisSize: MainAxisSize.min,
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                crossAxisAlignment: CrossAxisAlignment.center,
                children: [
                  Container(
                    height: 44,
                    child: Row(
                      children: [
                        GestureDetector(
                            onTap: () {
                              Navigator.push(
                                  context,
                                  MaterialPageRoute(
                                    builder: (context) => PhotoViewGalleryScreen(
                                      images: [(widget?.article?.authorHeadImg ?? "").isEmpty?
                                            "https://lmg.jj20.com/up/allimg/tx30/09041130358711081.jpg":widget?.article?.authorHeadImg
                                      ], //传入图片list
                                      index: 0, //传入当前点击的图片的index
                                    ),
                                  ));
                            },
                            child:
                                MImage(
                                  (widget?.article?.authorHeadImg ?? "https://lmg.jj20.com/up/allimg/tx30/09041130358711081.jpg"),
                                  width: 44,
                                  height: 44,
                                  isCircle: true,
                                  fit: BoxFit.cover,
                                  errorSrc: "assets/image/default_1.png",
                                  fadeSrc: "assets/image/default_1.png",
                                ),
                                ),
                        SizedBox(
                          width: 8,
                        ),
                        Column(
                          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            Text(
                              widget?.article?.authorName ?? "",
                              style: TextStyle(
                                fontSize: 15.sp,
                                fontWeight: MyFontWeight.semi_bold,
                                color: Color(0xFF1A1A1A),
                              ),
                            ),
                            Text(
                              widget?.article?.createTime ?? "",
                              style: TextStyle(
                                fontSize: 13.sp,
                                fontWeight: MyFontWeight.regular,
                                color: Color(0xFF808080),
                              ),
                            ),
                          ],
                        ),
                      ],
                    ),
                  ),
                  if (widget?.article?.updateUser != widget.userId ?? "")
                    GestureDetector(
                      onTap: () {
                        setState(() {
                          if (widget.commentType == 0) {
                            widget.article.liked =
                                !(widget.article.liked ?? false);
                            _vipFollow(widget.article.updateUser,
                                widget.article.liked ?? false);
                          } else {
                            showDeleteDialog();
                          }
                        });
                      },
                      child: (widget.commentType == 0)
                          ? Container(
                              width: 56.w,
                              height: 25.h,
                              alignment: Alignment.center,
                              child: RoundButton(
                                height: 25.h,
                                backgroup: (widget?.article?.liked ?? false)
                                    ? Color(0xFFE6E6E6)
                                    : Color(0xFF32A060),
                                textColor: (widget?.article?.liked ?? false)
                                    ? Color(0xFF808080)
                                    : Colors.white,
                                text: (widget?.article?.liked ?? false)
                                    ? "已关注"
                                    : "关注",
                                radius: 20,
                                icons: Icon(
                                  (widget?.article?.liked ?? false)
                                      ? Icons.check
                                      : Icons.add,
                                  color: (widget?.article?.liked ?? false)
                                      ? Color(0xFF808080)
                                      : Colors.white,
                                  size: 15,
                                ),
                              ))
                          : Padding(
                              padding: EdgeInsets.all(20),
                              child: Icon(
                                Icons.close,
                                color: Colors.black,
                                size: 16,
                              ),
                            ),
                    ),
                ],
              ),
              SizedBox(
                height: 12.h,
              ),
              Text(
                widget?.article?.mainTitle ?? "",
                maxLines: 5,
                overflow: TextOverflow.ellipsis,
                style: TextStyle(
                  color: Color(0xFF1A1A1A),
                  fontWeight: MyFontWeight.regular,
                  fontSize: 15.sp,
                ),
              ),
              buildMedia(widget?.article?.content),
              if (!widget.isDetails)
                SizedBox(
                  height: 12.h,
                ),
              if (!widget.isDetails)
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    IconText(
                      (widget.article != null)
                          ? "${widget.article.viewers}"
                          : "",
                      space: 4.w,
                      leftImage: "assets/svg/liulanliang.svg",
                      iconSize: 16,
                      textStyle: TextStyle(
                        fontSize: 14.sp,
                      ),
                    ),
                    IconText(
                      "${widget.article.comments ?? 0}",
                      space: 4.w,
                      leftImage: "assets/svg/pinglun.svg",
                      iconSize: 16,
                      textStyle: TextStyle(
                        fontSize: 14.sp,
                      ),
                    ),
                    GestureDetector(
                      onTap: () {},
                      child: IconText(
                        "${widget.article.likes ?? 0}",
                        space: 4.w,
                        leftImage: "assets/svg/xihuan.svg",
                        iconSize: 16,
                        textStyle: TextStyle(
                          fontSize: 14.sp,
                        ),
                      ),
                    ),
                  ],
                ),
            ],
          ),
        ),
        Container(
          height: 16,
          color: Color(0xFFF7F7F7),
        ),
      ],
    );
  }

  ///动态内容
  Widget buildMedia(String subjectInfo) {
    if (subjectInfo == null || !subjectInfo.startsWith("{")) {
      return Container();
    }
    var cnt = jsonDecode(subjectInfo);
    Widget itemWidget = Container();
    if (cnt["type"] == "image" &&
        cnt["images"] != null &&
        cnt["images"].length > 0) {
      if (cnt["images"].length == 1) {
        itemWidget = Container(
          child: InkWell(
              onTap: () {
                // ImagePickers.previewImages(subjectInfo.images,0);
                Navigator.push(
                  context,
                  MaterialPageRoute(
                    builder: (context) => PhotoViewGalleryScreen(
                      images: cnt["images"], //传入图片list
                      index: 0, //传入当前点击的图片的index
                    ),
                  ),
                );
              },
              child: MImage(
                cnt["images"][0],
                fit: BoxFit.contain,
                radius: BorderRadius.circular(2),
                height:MediaQuery.of(context).size.width/1.5,
                errorSrc: "assets/image/default_2_1.png",
                fadeSrc: "assets/image/default_2_1.png",
              )),
        );
      } else {
        itemWidget = GridView.builder(
          gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
            crossAxisCount:
                (cnt["images"].length == 2 || cnt["images"].length == 4)
                    ? 2
                    : 3,
            crossAxisSpacing: 12.w,
            mainAxisSpacing: 12.w,
            childAspectRatio: 1,
          ),
          padding: EdgeInsets.zero,
          shrinkWrap: true,
          physics: NeverScrollableScrollPhysics(),
          itemBuilder: (context, position) {
            return Container(
              child: InkWell(
                onTap: () {
                  // ImagePickers.previewImages(subjectInfo.images, position);
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => PhotoViewGalleryScreen(
                        images: cnt["images"], //传入图片list
                        index: position, //传入当前点击的图片的index
                      ),
                    ),
                  );
                },
                child: MImage(
                  cnt["images"][position]
                      .replaceAll(".jpg", ".jpg?imageView2/0/q/75"),
                  fit: BoxFit.cover,
                  aspectRatio: 1,
                  radius: BorderRadius.circular(1),
                  errorSrc: "assets/image/default_2_1.png",
                  fadeSrc: "assets/image/default_2_1.png",
                ),
              ),
            );
          },
          itemCount: cnt["images"].length,
        );
      }
    } else if (cnt["type"] == "video" &&
        cnt["video"] != null &&
        cnt["video"].isNotEmpty) {
      itemWidget = videoWidget(
        MediaQuery.of(context).size.width - 32,
        videoPlayerController != null
            ? (MediaQuery.of(context).size.width - 32) /
                videoPlayerController.value.aspectRatio
            : MediaQuery.of(context).size.width / 2,
        cnt["video"].replaceAll(".mp4", "_poster.jpg"),
      );
    }
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      crossAxisAlignment: CrossAxisAlignment.start,
      mainAxisSize: MainAxisSize.min,
      children: [
        SizedBox(
          height: 16.h,
        ),
        itemWidget,
      ],
    );
  }

  @override
  void dispose() {
    super.dispose();

    if (chewieAudioController != null) {
      chewieAudioController.pause();
      chewieAudioController.dispose();
      chewieAudioController = null;
    }

    if (videoPlayerController != null) {
      videoPlayerController.pause();
      videoPlayerController.dispose();
    }
  }

  Widget videoWidget(double width, double height, src) {
    print("src :  $src");
    return MediaQuery(
      data: MediaQuery.of(context).copyWith(
        textScaleFactor: 0.9,
      ),
      child: !widget.isList
          ? (chewieAudioController != null
              ? Container(
                  width: width,
                  height: height,
                  child: chewies = Chewie(
                    controller: chewieAudioController,
                  ),
                )
              : Container(
                  width: width,
                  height: height,
                ))
          : Container(
              width: width,
              height: width / 7 * 5,
              color: Colors.black,
              child: Stack(
                children: [
                  Container(
                    width: double.infinity,
                    height: double.infinity,
                    child: MImage(
                      src,
                      aspectRatio: videoPlayerController != null
                          ? videoPlayerController.value.aspectRatio
                          : (width / 7 * 5),
                      fit: BoxFit.cover,
                      errorSrc: "assets/image/default_2_1.png",
                      fadeSrc: "assets/image/default_2_1.png",
                    ),
                  ),
                  Center(
                    child: Icon(
                      Icons.play_circle_outline,
                      color: Colors.white,
                      size: 60,
                    ),
                  ),
                ],
              ),
            ),
    );
  }

  Future<void> _fullScreenListener() async {
    if (!chewieAudioController.isFullScreen) {
      Future.delayed(Duration(seconds: 1), () {
        widget.exitFull();
      });
    }
  }

  ///删除动态弹窗
  showDeleteDialog() {
    showDialog(
      context: context,
      builder: (context) {
        return AlertDialog(
          content: Container(
            width: MediaQuery.of(context).size.width - 84,
            height: 130.h,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.center,
              children: [
                Text(
                  "确定要删除这条动态？",
                  style: TextStyle(
                    fontSize: 17.sp,
                    fontWeight: FontWeight.bold,
                    color: Colors.black,
                  ),
                ),
                SizedBox(
                  height: 30.h,
                ),
                Row(
                  children: [
                    Expanded(
                      child: InkWell(
                        child: BorderText(
                          text: "取消",
                          textColor: Color(0xFF32A060),
                          fontSize: 16.sp,
                          fontWeight: FontWeight.bold,
                          borderColor: Color(0xFF32A060),
                          radius: 4,
                          padding: EdgeInsets.all(12),
                          borderWidth: 1,
                        ),
                        onTap: () {
                          Navigator.of(context).pop();
                        },
                      ),
                      flex: 1,
                    ),
                    SizedBox(
                      width: 16.w,
                    ),
                    Expanded(
                      child: InkWell(
                        child: RoundButton(
                          text: "确定",
                          textColor: Colors.white,
                          radius: 4,
                          padding: EdgeInsets.all(12),
                          backgroup: Color(0xFF32A060),
                          fontSize: 16.sp,
                          fontWeight: FontWeight.bold,
                        ),
                        onTap: () {
                          _deleteDynamic(widget.article.id);
                          Navigator.of(context).pop();
                        },
                      ),
                      flex: 1,
                    ),
                  ],
                )
              ],
            ),
          ),
        );
      },
    );
  }

  @override
  void didChangeDependencies() {
    if (widget.heightFun != null)
      WidgetsBinding.instance.addPostFrameCallback(_getContainerHeight);
    super.didChangeDependencies();
  }

  _getContainerHeight(_) {
    if (globalKey.currentContext != null)
      height = globalKey.currentContext.size.height;
    if (widget.heightFun != null) widget.heightFun(height);
    print("height: $height");
  }
}