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App开发之帖子系统(实战篇)

漂泊80

共 52316字，需浏览 105分钟

 · 2020-11-23

帖子系统数据库设计

帖子表

评论表

收藏表

点赞表

点赞评论表(点赞帖子和点赞评论我用了2个表，也可以用一个表用类型字段区分)


发帖

客户端add_post_page.dart

import 'dart:convert';
import 'package:common_utils/common_utils.dart';import 'package:flutter/material.dart';import 'package:flutter/services.dart';import 'package:flutter_songbei/custom/common_bottom_sheet.dart';import 'package:flutter_songbei/custom/griditem/add_post_images_grid_item.dart';import 'package:flutter_songbei/custom/network_loading.dart';import 'package:flutter_songbei/models/image_model.dart';import 'package:flutter_songbei/models/post_model.dart';import 'package:flutter_songbei/network/chttp.dart';import 'package:flutter_songbei/network/params.dart';import 'package:flutter_songbei/provider/app.dart';import 'package:flutter_songbei/qiniu/qiniu_file.dart';import 'package:flutter_songbei/qiniu/qiniu_scuess.dart';import 'package:flutter_songbei/utils/qiniu.dart';import 'package:flutter_songbei/utils/toast_util.dart';import 'package:image_picker/image_picker.dart';import 'package:image_picker_platform_interface/image_picker_platform_interface.dart';import 'package:provider/provider.dart';import 'package:sy_flutter_qiniu_storage/sy_flutter_qiniu_storage.dart';
class AddPostPage extends StatefulWidget {  @override  State createState() {    return _PageState();  }}
class _PageState extends State<AddPostPage> {  TextEditingController _titleController = TextEditingController();  TextEditingController _controller = TextEditingController();
  String specification = "";  int per_add = 0;  int image_max = 9;
  String token = '';  Map qiniuFlies = Map();
  List images = List();
  final ImagePicker _picker = ImagePicker();
  @override  void initState() {    var image = ImageModel();    image.type = 1;    images.add(image);    _reqQiniuToken();
    rootBundle.loadString('assets/data/specification.txt').then((value) => {          this.specification = value,          print('-----specification:${specification}')        });
    WidgetsBinding.instance.addPostFrameCallback((_) {      _reqPrivileges();    });    super.initState();  }
  @override  void dispose() {    _controller.dispose();    super.dispose();  }
  @override  Widget build(BuildContext context) {    return Scaffold(        appBar: AppBar(          title: Text(            '想法',          ),          centerTitle: true,          actions: [            FlatButton.icon(              onPressed: () {                _submit();              },              icon: Icon(                Icons.near_me,                size: 14,                color: Colors.white,              ),              label: Text(                '发布',                style: TextStyle(color: Colors.white),              ),            )          ],        ),        body: Container(          color: Colors.white,          padding: EdgeInsets.all(10),          child: Column(            children: [              // TextField(              //   controller: _titleController,              //   minLines: 1,              //   maxLines: 20,              //   decoration: InputDecoration(              //     contentPadding: EdgeInsets.all(5.0),              //     hintText: '编辑想法标题',              //     filled: true,              //     fillColor: Colors.white,              //     border: InputBorder.none,              //   ),              // ),              // Divider(              //   height: 1,              // ),              TextField(                controller: _controller,                minLines: 5,                maxLines: 20,                decoration: InputDecoration(                  contentPadding: EdgeInsets.all(5.0),                  hintText: '写下你的想法',                  filled: true,                  fillColor: Colors.white,                  border: InputBorder.none,                ),              ),              Flexible(                child: GridView.builder(                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(                        crossAxisCount: 3, //横轴三个子widget                        childAspectRatio: 1.0 //宽高比为1时，子widget                        ),                    itemCount: images.length,                    itemBuilder: (content, index) {                      return AddPostGridItem(                        images[index],                        onAdd: (item) {                          showPhotos();                        },                        onDel: (item) {                          print('-----item:$item');                          images.removeAt(index);                          for (var i = images.length - 1; i >= 0; i--) {                            if (images[i].id == item.id) {                              images.removeAt(i);                            }                          }                          if (images.length < image_max) {                            if (images[images.length - 1].type != 1) {                              var image = ImageModel();                              image.type = 1;                              images.add(image);                            }                          }                          setState(() {});                        },                      );                    }),              ),            ],          ),        ));  }
  showPhotos() {    var cur_images = 0;    for (var i = 0; i < images.length; i++) {      if (images[i].type == 0) {        cur_images++;      }    }    if (cur_images < image_max) {    } else {      ToastUtil.showToast(context, '最多可上传$image_max张图片');    }    showDialog(        barrierDismissible: true, //是否点击空白区域关闭对话框,默认为true，可以关闭        context: context,        builder: (BuildContext context) {          var list = List();          list.add('相册');          list.add('相机');          return CommonBottomSheet(            list: list,            onItemClickListener: (index) async {              print('-----index:$index');              if (index == 0 || index == 2) {                var source = ImageSource.gallery;                if (index == 2) source = ImageSource.camera;                PickedFile file = await _picker.getImage(source: source);                if (file == null) {                  ToastUtil.showToast(context, '选择文件失败');                  return;                }                var insert_index = 0;                images.forEach((element) {                  if (element.type == 0) {                    insert_index += 1;                  }                });                var image = ImageModel();                image.path = image.url = file.path;                image.type = 0;                image.state = 0;                images.insert(insert_index, image);                if (images.length > image_max) {                  for (var i = images.length - 1; i >= 0; i--) {                    if (images[i].type == 1) {                      images.removeAt(i);                    }                  }                }                setState(() {});//                  _onUpload(file);                Future future = this._onUpload(file);                future.then((qiniuScuess) {                  for (var i = 0; i < images.length; i++) {                    if (images[i].type == 0 &&                        images[i].path == qiniuScuess.file_path) {                      images[i].state = 1;                      images[i].url = Qiniu.getUpUrl(qiniuScuess.qiniu_key);                      print('------上传成功');                    }                  }                  setState(() {});                });              }              Navigator.pop(context);            },          );        });  }
  _submit() {    print("==============================");    // if (_titleController.text.isEmpty) {    //   ToastUtil.showToast(context, '编辑想法标题');    //   return;    // }    if (_controller.text.isEmpty) {      ToastUtil.showToast(context, '写下你的想法');      return;    }    List upImages = List();    for (var i = 0; i < images.length; i++) {      if (images[i].type == 0 && images[i].state == 1) {        upImages.add(images[i]);      }    }//    if (upImages.length == 0) {//      ToastUtil.showToast(context, '请选择图片');//      return;//    }
    var to_json = {};    if (upImages.length > 0) {      List photos = List();      for (var i = 0; i < upImages.length; i++) {        photos.add(upImages[i].toServerJson(i));      }//    print(photos);      to_json = {'photos': photos};    }    _reqAddDiscuss(        _titleController.text, _controller.text, json.encode(to_json));  }
  /**   * 用户规范   */  showSpecification() {    showDialog(        context: context,        builder: (context) {          return AlertDialog(              title: Text('用户发布内容规范'),              content: Container(                height: MediaQuery.of(context).size.height / 2,                child: SingleChildScrollView(                  child: Container(                    padding: EdgeInsets.all(10.0),                    child: Text(                      specification,                      style: TextStyle(fontSize: 18.0),                    ),                  ),                ),              ),              actions: [                FlatButton(                    child: Text("同意"),                    onPressed: () =>                        {_reqSetPri(), Navigator.of(context).pop()}),                FlatButton(                    child: Text("拒绝"),                    onPressed: () => {                          Navigator.of(context).pop(),                          Navigator.of(context).pop()                        }),              ]);        });  }
  void _reqAddDiscuss(title, content, extend) {    print('-----userid:${Provider.of(context, listen: false).userid}');    showDialog(        context: context,        barrierDismissible: false,        builder: (BuildContext context) {          return NetworkLoading();        });    CHttp.post(        CHttp.DISCUSS_ADD,        (data) {          Navigator.pop(context);          ToastUtil.showToast(context, '发布成功');          Navigator.pop(context, PostModel(data));        },        params: PAddPost(Provider.of(context, listen: false).userid, title,                content, 1,extend)            .toJson(),        errorCallback: (err) {          Navigator.pop(context);          ToastUtil.showToast(context, err);        },        completeCallback: () {//          Navigator.pop(context);        });  }
  Future _onUpload(PickedFile file) async {    if (token == null || (token != null && token.length == 0)) {      ToastUtil.showToast(context, 'token 无效!');      return null;    }    print('---_onUpload:${token}');    QiniuScuess qiniuScuess = null;    if (token == null || (token != null && token.length == 0)) {      ToastUtil.showToast(context, 'token 无效!');      return qiniuScuess;    }    if (file == null) {      return qiniuScuess;    }    qiniuFlies[file.path] = QinuFile(file.path);    final syStorage = SyFlutterQiniuStorage();    //监听上传进度    syStorage.onChanged().listen((dynamic percent) {      double p = percent;//      setState(() {      if (qiniuFlies[file.path] != null) qiniuFlies[file.path].process = p;//      });//      print(percent);      LogUtil.e('---percent:${percent}');//      if (qiniuFlies[file.path] != null&&p >= 1.0) {////        LogUtil.e('---qiuniu_link:${qiniu_link}');//        Qiniu.httpGetImageInfo(Qiniu.getUpUrl(qiniuFlies[file.path].qiniu_key), (data) {//          Map info_map = jsonDecode(jsonEncode(data));////            this.myFileStorage.onUpScuess(file.path,qiniuFlies[file.path].qiniu_key,info_map);//          qiniuScuess  = QiniuScuess(file.path,qiniuFlies[file.path].qiniu_key,info_map);//          this.myFileStorage.onUpScuess(qiniuScuess);//          print('-----tag qiniuScuess:${qiniuScuess}');//          setState(() {//            _controller.text = _controller.text;//          });//        }, errorCallback: (err) {////        });//      }    });
    String key = Qiniu.getUpPath(file.path);//    LogUtil.e('---key:${key}');//    setState(() {//      qiniu_key = key;//    });    qiniuFlies[file.path].qiniu_key = key;    //上传文件    UploadResult result = await syStorage.upload(file.path, token, key);    if (result.success) {      qiniuScuess = QiniuScuess(file.path, qiniuFlies[file.path].qiniu_key);    }    print('-----result:${result} qiniuScuess:${qiniuScuess}');    return qiniuScuess;  }
  void _reqQiniuToken() {    CHttp.post(CHttp.QINIU_UPTOKEN, (data) {      LogUtil.e('-----data:${data}');      setState(() {        token = data;      });    }, errorCallback: (err) {      LogUtil.e('-----err:${err}');    });  }
  void _reqPrivileges() {    CHttp.post(        CHttp.USER_PRIVILEGES,        (data) {          LogUtil.e('-----data:${data}');          var temp_per_add = data['per_add'];          setState(() {            per_add = temp_per_add;          });          if (temp_per_add == 0) {            this.showSpecification();          }        },        params:            PUserid(Provider.of(context, listen: false).userid).toJson(),        errorCallback: (err) {          LogUtil.e('-----err:${err}');        });  }
  void _reqSetPri() {    CHttp.post(        CHttp.USER_SETPRI,        (data) {          LogUtil.e('-----data:${data}');          var temp_per_add = data['per_add'];          setState(() {            per_add = temp_per_add;          });          if (temp_per_add == 0) {            showSpecification();          }        },        params: PSetPri(Provider.of(context, listen: false).userid,                'per_add', true)            .toJson(),        errorCallback: (err) {          LogUtil.e('-----err:${err}');        });  }}

服务器 discuss.js
router.post('/add', function(req, res, next) {    try {        ru.logReq(req);        var userid = req.body.userid;        var title = req.body.title;        var content = req.body.content;        var extend = req.body.extend;        var type = req.body.type;        var os = req.body.os;        if (!content || !userid ||!type) {            ru.resError(res, '参数错误');        } else {            discussDao.addDiscuss(userid, type, title, content, extend, function(err, result) {                if (err) {                    ru.resError(res, err);                } else {                    var poem = {};                    if (result.length > 0) {                        poem = result[0];                    }                    ru.resSuccess(res, poem);                    // console.log(poem)                    userDao.queryFollowMe(userid, function(err, result) {                        if (err) {                            logger.error(err);                        } else {                            if (result.length > 0) {                                let messages = [];                                console.log('--------------')                                console.log(result);                                for (var i = 0; i < result.length; i++) {                                    var title = poem.nickname + '发布了新讨论';                                    var content = poem.nickname + '发布了[' + poem.title + ']';                                    var addDiscussExtend = new AddDiscussExtend(poem.id, poem.userid, poem.head, poem.nickname, poem.title);                                    var message = new Notice(NoticeType.DADD, result[i].fansid, title, content, addDiscussExtend);                                    messages.push(message)                                }                                if (messages.length > 0) {                                    httputil.requstLocalPost('/psbook/message/actionmsgs', { messages: messages }, function(err, result) {                                        logger.debug(err);                                        logger.debug(result);                                    });                                }
                                var app_name = appconfig.APP_NAME;                                var webhook_body = "####" + app_name + "\n用户:" + userid + "发布了新的讨论[" + poem.title + "]"                                    +"\n系统:["+os+"]";                                webhook.sendMarkdownMsg(webhook_body, function(err, result) {                                    if (err) {                                        logger.error(err);                                    }                                });                            }                        }                    })                }            })        }    } catch (err) {        ru.resError(res, err.message);    }});
帖子列表
客户端发现页
import 'package:flutter/material.dart';import 'package:flutter_songbei/custom/listitem/post_list_item.dart';import 'package:flutter_songbei/models/post_model.dart';import 'package:flutter_songbei/network/chttp.dart';import 'package:flutter_songbei/network/params.dart';import 'package:flutter_songbei/pages/post/post_page.dart';import 'package:flutter_songbei/pages/user/login_page.dart';import 'package:flutter_songbei/provider/app.dart';import 'package:flutter_songbei/utils/app_util.dart';import 'package:flutter_songbei/utils/toast_util.dart';import 'package:provider/provider.dart';import 'package:pull_to_refresh/pull_to_refresh.dart';
import '../../app_theme.dart';
class FoundTab extends StatefulWidget {  @override  State createState() {    return _PageState();  }}
class _PageState extends State<FoundTab> {  List posts = List();
  /**   *  0 下拉刷新 1 上拉刷新   */  int pull_type = 0;
  int count = 0;
  RefreshController _refreshController =      RefreshController(initialRefresh: false);
  @override  void initState() {    super.initState();    pull_type = 0;    _requestNDiscuss();  }
  @override  Widget build(BuildContext context) {    return Scaffold(      appBar: AppBar(        title: Text('发现'),        backgroundColor: AppTheme.mainColor,      ),      body: Container(        child: SmartRefresher(          enablePullDown: true,          enablePullUp: true,          controller: _refreshController,          onRefresh: _onRefresh,          onLoading: _onLoading,          child: ListView.separated(            itemBuilder: (content, index) {              return PostListItem(                posts[index],                index,                this.onItem,                onStar: (item) {                  if (AppUtil.isLogin(context) == false) {                    Navigator.push(context,                        MaterialPageRoute(builder: (context) => LoginPage()));                    return;                  }                  _reqPostStar(item);                },                onLove: (item) {                  if (AppUtil.isLogin(context) == false) {                    Navigator.push(context,                        MaterialPageRoute(builder: (context) => LoginPage()));                    return;                  }                  _reqPostLove(item);                },              );            },            itemCount: posts.length,            separatorBuilder: (context, index) {              return Divider(                height: 0.5,                indent: 0,                color: Color(0xFFDDDDDD),              );            },          ),        ),      ),    );  }
  void _onRefresh() {    pull_type = 0;    _requestNDiscuss();  }
  void _onLoading() {    pull_type = 1;    if (posts.length < count) {      _requestHDiscuss();    } else {      _refreshController.loadComplete();    }  }
  void onItem(item) {    Navigator.push(            context, MaterialPageRoute(builder: (context) => PostPage(item.id)))        .then((res) {      if (res != null) {        print('-----res');        print(res);        if (res['action'] == 'del') {          var id = res['id'];          var temp_discuss = posts;          for (var i = temp_discuss.length - 1; i >= 0; i--) {            if (temp_discuss[i].id == id) {              temp_discuss.removeAt(i);            }          }          this.setState(() {            posts = temp_discuss;          });        }      }    });  }
  void _requestNDiscuss() {    var fromid = 0;    var forms = posts;    if (forms.length > 0) {      fromid = forms[0].id;    }    CHttp.post(        CHttp.DISCUSS_NDISCUSS,        (data) {          if (!mounted) {            return;          }          count = data['count'];          var temp_discuss = List();          var res_discuss = data['discuss'];          for (var i = 0; i < res_discuss.length; i++) {            temp_discuss.add(PostModel(res_discuss[i]));          }          posts.insertAll(0, temp_discuss);          setState(() {          });          print(posts);        },        params:            PDiscuss(Provider.of(context, listen: false).userid, fromid)                .toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        },        completeCallback: () {          if (pull_type == 0) {            _refreshController.refreshCompleted();          } else {            _refreshController.loadComplete();          }        });  }
  void _requestHDiscuss() {    var fromid = 0;    var forms = posts;    if (forms.length > 0) {      fromid = forms[forms.length - 1].id;    }    CHttp.post(        CHttp.DISCUSS_HDISCUSS,        (data) {          if (!mounted) {            return;          }          count = data['count'];          var temp_discuss = List();          var res_discuss = data['discuss'];          for (var i = 0; i < res_discuss.length; i++) {            temp_discuss.add(PostModel(res_discuss[i]));          }          posts.addAll(temp_discuss);          setState(() {          });          print(posts);        },        params: PDiscuss(Provider.of(context).userid, fromid).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        },        completeCallback: () {          if (pull_type == 0) {            _refreshController.refreshCompleted();          } else {            _refreshController.loadComplete();          }        });  }
  void _reqPostStar(PostModel post) {    print(post);    var star = post.mystar != null&&post.mystar == 1 ? 0 : 1;    CHttp.post(        CHttp.STATR,            (data) {          if (!mounted) {            return;          }          post.mystar = star;          var starnum = post.starnum != null?post.starnum :0;          if (star == 1) {            starnum += 1;          } else {            if (starnum > 0) {              starnum -= 1;            }          }          post.starnum = starnum;          setState(() {});          ToastUtil.showToast(context, star == 1 ? '收藏成功' : '取消收藏');          print(data);        },        params: PStar(Provider.of(context, listen: false).userid, 3,            post.id, star)            .toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _reqPostLove(PostModel post) {    CHttp.post(        CHttp.LOVE_LOVE,            (data) {          if (!mounted) {            return;          }          print(data);          var love = data['love'];          var lovenum = post.lovenum;          if (love == 1) {            lovenum += 1;          } else {            if (lovenum > 0) {              lovenum -= 1;            }          }          post.lovenum = lovenum;          post.mylove = love;          setState(() {});        },        params: PPostLove(Provider.of(context, listen: false).userid,3,            post.id, post.mylove == 0 ? 1 : 0)            .toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        },        completeCallback: () {
        });  }
}

服务器帖子列表
/** * 最新帖子 */router.post('/ndiscuss', function(req, res, next) {    try {        ru.logReq(req);        var id = req.body.id;        var userid = req.body.userid;        discussDao.queryNDiscuss(id, userid, function(err, poems) {            if (err) {                ru.resError(res, err);            } else {                ru.resSuccess(res, poems);            }        })    } catch (err) {        ru.resError(res, err.message);    }});/** * 历史帖子 */router.post('/hdiscuss', function(req, res, next) {    try {        ru.logReq(req);        var id = req.body.id;        var userid = req.body.userid;        discussDao.queryHDiscuss(id, userid, function(err, poems) {            if (err) {                ru.resError(res, err);            } else {                ru.resSuccess(res, poems);            }        });    } catch (err) {        ru.resError(res, err.message);    }});

帖子详情
客户端post_page.dart
import 'package:cached_network_image/cached_network_image.dart';import 'package:flutter/material.dart';import 'package:flutter_songbei/custom/follow_user.dart';import 'package:flutter_songbei/custom/listitem/comment_list_item.dart';import 'package:flutter_songbei/custom/listitem/post_love_lits_item.dart';import 'package:flutter_songbei/custom/loading.dart';import 'package:flutter_songbei/manager/ui_manager.dart';import 'package:flutter_songbei/models/comment_model.dart';import 'package:flutter_songbei/models/follow_model.dart';import 'package:flutter_songbei/models/love_model.dart';import 'package:flutter_songbei/models/photo_gallery_model.dart';import 'package:flutter_songbei/models/post_model.dart';import 'package:flutter_songbei/network/chttp.dart';import 'package:flutter_songbei/network/params.dart';import 'package:flutter_songbei/pages/my/report_page.dart';import 'package:flutter_songbei/pages/user/login_page.dart';import 'package:flutter_songbei/pages/user/loves_page.dart';import 'package:flutter_songbei/provider/app.dart';import 'package:flutter_songbei/utils/app_util.dart';import 'package:flutter_songbei/utils/toast_util.dart';import 'package:provider/provider.dart';
import '../../app_theme.dart';import '../photos_gallery_page.dart';
class PostPage extends StatefulWidget {  int id;
  PostPage(this.id);
  @override  State createState() {    return _PageState(id);  }}
class _PageState extends State<PostPage> {  int id;  PostModel post;  FollowModel follow;  List comments = List();  List loves = List();
  TextEditingController _textController = TextEditingController();  FocusNode _focusNode = FocusNode();  bool _isComposing = false;
  String placeholder = '发表评论...';  String ctips = '';  int cid = 0;  String cnickname = '';  String ccomment = '';  String comment = '';
  _PageState(this.id);
  @override  void initState() {    super.initState();    _requestDiscuss();    _requestNewestComment();    _requestLoves();  }
  @override  Widget build(BuildContext context) {    return Scaffold(      appBar: AppBar(        title: Text('想法'),        centerTitle: true,      ),      body: _buildBody(),    );  }
  Widget _buildBody() {    print('_buildBody');    print(post);    if (post != null) {      return Column(        children: [          Flexible(            child: Container(              padding: EdgeInsets.all(10),              decoration: BoxDecoration(color: Colors.white),              child: ListView(                children: [                  _buildFollow(),                  _buildPost(context),                  _buildLoves(),                  _buildMenus(),                  Row(                    children: [Text('全部回复:${post.commentnum}')],                  ),                  ListView.separated(                    shrinkWrap: true,                    physics: NeverScrollableScrollPhysics(),                    itemCount: comments.length,                    itemBuilder: (BuildContext context, int positon) {                      return CommentLstItem(comments[positon], onComment:(item) {//                        print('----item:${item}');                        if (AppUtil.isLogin(context) == false) {                          Navigator.push(                              context,                              MaterialPageRoute(                                  builder: (context) => LoginPage()));                          return;                        }                        _renderTips(item.id, item.nickname, item.comment);                      }, onLove:(item) {                        _onLoveComment(item);                      }, onDel:(item) {                        showDialog(                            context: context,                            builder: (context) {                              return AlertDialog(                                title: Text('删除评论'),                                content: Container(                                  child: Text('是否确认删除评论?'),                                ),                                actions: [                                  FlatButton(                                    child: const Text('取消'),                                    onPressed: () {                                      Navigator.of(context).pop();                                    },                                  ),                                  FlatButton(                                      child: const Text('确认'),                                      onPressed: () {                                        _onDelComment(item);                                        Navigator.of(context).pop();                                      }),                                ],                              );                            });                      });                    },                    separatorBuilder: (context, index) {                      return Divider(                        height: 0.5,                        indent: 0,                        color: Color(0xFFDDDDDD),                      );                    },                  )                ],              ),            ),          ),          Divider(height: 1.0),          Container(            decoration: new BoxDecoration(color: Theme.of(context).cardColor),            child: _buildTextComposer(), //页面下方的文本输入控件          )        ],      );    } else {      return Loading();    }  }
  Widget _buildFollow() {    print('------_buildFollow');    print(follow);    if (follow != null) {      return Container(        child: FollowUser(1, follow, (item) {}),      );    } else {      return Container();    }  }
  Widget _buildPost(BuildContext context) {    print('post.time:${post.time}');    return Column(      crossAxisAlignment: CrossAxisAlignment.start,      children: [        Padding(          padding: EdgeInsets.fromLTRB(0, 10, 0, 0),          child: Text(            post.title,            style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),          ),        ),        Padding(          padding: EdgeInsets.fromLTRB(0, 10, 0, 10),          child: Text(            post.content,            style: TextStyle(fontSize: 16),          ),        ),        _buildPhotos(context),        Row(          mainAxisAlignment: MainAxisAlignment.end,          children: [            Text(              UIManager.getTime(post.time),              style:              TextStyle(fontSize: 14,color: AppTheme.grayColor),            )          ],        )      ],    );  }
  Widget _buildPhotos(BuildContext context) {    if (post.postExtend != null && post.postExtend.photos.length > 0) {      var photos = post.postExtend.photos;      return Container(        padding: EdgeInsets.fromLTRB(0, 10, 0, 0),        child: ListView.builder(          shrinkWrap: true,          physics: NeverScrollableScrollPhysics(),          itemBuilder: (BuildContext content, int index) {            return InkWell(              child: Container(                constraints:                BoxConstraints(maxHeight: MediaQuery.of(context).size.width),                child: CachedNetworkImage(                  imageUrl: UIManager.getHeadurl(photos[index].photo),                  fit: BoxFit.cover,                  width: double.infinity,                ),              ),              onTap: (){                List gallery_photos = List();                photos.forEach((element) {                  gallery_photos.add(PhotoGalleryModel(element.photo));                });                Navigator.push(                    context, MaterialPageRoute(builder: (context) => PhotosGalleryPage(gallery_photos,index)));              },            );          },          itemCount: photos.length,        ),      );    } else {      return Container();    }  }
  Widget _buildLoves() {    if (post.lovenum > 0) {      return GestureDetector(        onTap: () {          Navigator.push(              context, MaterialPageRoute(builder: (context) => LovesPage(id)));        },        child: Container(          padding: EdgeInsets.all(10),          child: Column(            children: [              Container(                height: 40,                width: MediaQuery.of(context).size.width/2,                child: ListView.separated(                  shrinkWrap: true,                  physics: NeverScrollableScrollPhysics(),                  scrollDirection: Axis.horizontal,                  itemCount: loves.length,                  itemBuilder: (BuildContext context, int positon) {                    return PostLoveListItem(loves[positon]);                  },                  separatorBuilder: (context, index) {                    return Divider(                      height: 0.5,                      indent: 0,                      color: Color(0xFFDDDDDD),                    );                  },                ),              ),              Divider(                height: 5,                color: Colors.white,              ),              Text(                '${post.lovenum}人赞过 >',                style: TextStyle(color: Colors.black45),              )            ],          ),        ),      );    } else {      return Container();    }  }
  Widget _buildMenus() {    print('-----_buildMenus');    print(post);    return Padding(      padding: EdgeInsets.fromLTRB(0, 10, 0, 10),      child: Row(        mainAxisAlignment: MainAxisAlignment.center,        crossAxisAlignment: CrossAxisAlignment.start,        children: [          InkWell(            child: Column(              children: [                Container(                  width: 40,                  height: 40,                  decoration: BoxDecoration(                      color: Colors.white,                      borderRadius: BorderRadius.all(Radius.circular(20.0)),                      border: Border.all(color: AppTheme.grayColor)),                  child: Column(                    mainAxisAlignment: MainAxisAlignment.center,                    crossAxisAlignment: CrossAxisAlignment.center,                    children: [                      Image(                        image: AssetImage(                            UIManager.getLoveAssetImage(post.mylove)),                        width: 20,                        height: 20,                        color: UIManager.getLoveColor(post.mylove),                      )                    ],                  ),                ),                Padding(                  padding: EdgeInsets.fromLTRB(0, 5, 0, 0),                  child: Text(                    UIManager.getNumStr(post.lovenum),                    style: TextStyle(color: AppTheme.grayColor),                  ),                )              ],            ),            onTap: () {              _onLove();            },          ),          SizedBox(            width: 40,            height: 40,          ),          InkWell(            child: Column(              children: [                Container(                  width: 40,                  height: 40,                  decoration: BoxDecoration(                      color: Colors.white,                      borderRadius: BorderRadius.all(Radius.circular(20.0)),                      border: Border.all(color: AppTheme.grayColor)),                  child: Column(                    mainAxisAlignment: MainAxisAlignment.center,                    crossAxisAlignment: CrossAxisAlignment.center,                    children: [                      Image(                        image: AssetImage(                            UIManager.getStarAssetImage(post.mystar)),                        width: 20,                        height: 20,                        color: UIManager.getStarColor(post.mystar),                      )                    ],                  ),                ),                Padding(                  padding: EdgeInsets.fromLTRB(0, 5, 0, 0),                  child: Text(                    UIManager.getNumStr(post.starnum),                    style: TextStyle(color: AppTheme.grayColor),                  ),                )              ],            ),            onTap: () {              _onStar();            },          ),          SizedBox(            width: 40,            height: 40,          ),          InkWell(            child: Container(              width: 40,              height: 40,              decoration: BoxDecoration(                  color: Colors.white,                  borderRadius: BorderRadius.all(Radius.circular(20.0)),                  border: Border.all(color: AppTheme.grayColor)),              child: Column(                mainAxisAlignment: MainAxisAlignment.center,                crossAxisAlignment: CrossAxisAlignment.center,                children: [                  Image(                    image: AssetImage('assets/post/jubao.png'),                    width: 20,                    height: 20,                    color: AppTheme.grayColor,                  )                ],              ),            ),            onTap: () {              _onReport();            },          ),          _buildDelete(),        ],      ),    );  }
  Widget _buildDelete() {    if (post.userid == Provider.of(context).userid) {      return Row(        children: [          SizedBox(            width: 40,            height: 40,          ),          InkWell(            child: Container(              width: 40,              height: 40,              decoration: BoxDecoration(                  color: Colors.white,                  borderRadius: BorderRadius.all(Radius.circular(20.0)),                  border: Border.all(color: AppTheme.grayColor)),              child: Column(                mainAxisAlignment: MainAxisAlignment.center,                crossAxisAlignment: CrossAxisAlignment.center,                children: [                  Image(                    image: AssetImage('assets/post/shanchu.png'),                    width: 20,                    height: 20,                    color: AppTheme.grayColor,                  )                ],              ),            ),            onTap: () {              showDialog(                  context: context,                  builder: (context) {                    return AlertDialog(                      title: Text('删除想法'),                      content: Container(                        child: Text('是否确认删除想法?'),                      ),                      actions: [                        FlatButton(                          child: const Text('取消'),                          onPressed: () {                            Navigator.of(context).pop();                          },                        ),                        FlatButton(                            child: const Text('确认'),                            onPressed: () {                              _onDelDiscuss();                              Navigator.of(context).pop();                            }),                      ],                    );                  });            },          )        ],      );    } else {      return Container();    }  }
  Widget _buildTextComposer() {    return IconTheme(      data: IconThemeData(color: Theme.of(context).accentColor),      child: Container(        margin: const EdgeInsets.symmetric(horizontal: 8.0),        child: Column(          children: [            cid > 0                ? Row(                    mainAxisAlignment: MainAxisAlignment.spaceBetween,                    children: [                      Container(                        width: MediaQuery.of(context).size.width / 3 * 2,//                        child:  Text(ctips,//                          style: TextStyle(color: Colors.black45),//                          maxLines: 1,//                          textAlign: TextAlign.left,//                          overflow: TextOverflow.ellipsis,//                          softWrap: true,//                        ),                        child: RichText(                          text: TextSpan(                              text: '正在回复',                              style: TextStyle(                                  fontWeight: FontWeight.bold,                                  color: Colors.black87),                              children: [                                TextSpan(                                    text: cnickname,                                    style: TextStyle(                                        fontWeight: FontWeight.bold,                                        color: Colors.lightBlueAccent)),                                TextSpan(                                    text: '的',                                    style: TextStyle(color: Colors.black87)),                                TextSpan(                                    text: ccomment,                                    style: TextStyle(                                        color: Colors.lightBlueAccent)),                              ]),                          textAlign: TextAlign.left,                          maxLines: 1,                          overflow: TextOverflow.ellipsis,                          softWrap: true,                        ),                      ),                      FlatButton(                        child: Text('取消回复'),                        onPressed: () {                          _renderTips(0, '', '');                          _onHideKey();                        },                      )                    ],                  )                : Container(),            Row(              children: [                Flexible(                  child: TextField(                    controller: _textController,                    focusNode: _focusNode,                    onChanged: (String text) {                      //new  通过onChanged事件更新_isComposing 标志位的值                      setState(() {                        //new  调用setState函数重新渲染受到_isComposing变量影响的IconButton控件                        _isComposing =                            text.length > 0; //new  如果文本输入框中的字符串长度大于0则允许发送消息                      }); //new                    },                    //new                    onSubmitted: _handleSubmitted,                    decoration:                        InputDecoration.collapsed(hintText: placeholder),                  ),                ),                Container(                  margin: EdgeInsets.symmetric(horizontal: 4.0),                  child: IconButton(                    icon: Icon(Icons.send),                    onPressed: _isComposing                        ? () =>                            _handleSubmitted(_textController.text) //modified                        : null, //modified  当没有为onPressed绑定处理函数时，IconButton默认为禁用状态                  ),                ),              ],            )          ],        ),      ),    );  }
  void _renderTips(cid, cnickname, comment) {//    print('----cnickname:${cnickname}');    var placeholder = '发表评论...';    var ctips = '';    if (cid > 0) {      placeholder = '回复...';      ctips = '正在回复[${cnickname}]的[${comment}]';      print('----${ctips}');//      this.refs.cinput.focus();      FocusScope.of(context).requestFocus(_focusNode);    } else {      this._onHideKey();    }    setState(() {      this.cid = cid;      this.cnickname = cnickname;      this.ccomment = comment;      this.placeholder = placeholder;      this.ctips = ctips;      this.comment = '';    });  }
  void _onHideKey() {    if (_focusNode.hasFocus == true) {//      FocusScope.of(context).requestFocus(_focusNode);      FocusScope.of(context).requestFocus(FocusNode());    }  }
  //定义发送文本事件的处理函数  void _handleSubmitted(String text) {    comment = _textController.text;    if (AppUtil.isLogin(context)) {      _onRelease();    } else {      Navigator.push(              context, MaterialPageRoute(builder: (context) => LoginPage()))          .then((perfect) {        if (perfect != null) {          _onRelease();        }      });    }  }
  void _onRelease() {    if (comment.length == 0) {      ToastUtil.showToast(context, '请输入内容');      return;    }    var params = PCommentAdd(3, Provider.of(context, listen: false).userid,            id, cid, comment)        .toJson();    CHttp.post(        CHttp.COMMENT_ADD,        (data) {          if (!mounted) {            return;          }          var temp_comment = CommentModel(data);          comments.insert(0, temp_comment);          setState(() {});          _requestLoveComment();          ToastUtil.showToast(context, '评论成功');          _renderTips(0, '', '');          _textController.clear(); //清空输入框        },        params: params,        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _onLoveComment(CommentModel comment) {    if (!AppUtil.isLogin(context)) {      Navigator.push(              context, MaterialPageRoute(builder: (context) => LoginPage()))          .then((perfect) {        if (perfect != null) {}      });      return;    }    var onlove = comment.love == 1 ? 0 : 1;    print('---comment.love:${comment.love}');    print('---onlove:${onlove}');    var params = PLoveComment(        2,        Provider.of(context, listen: false).userid,        id,        comment.id,        onlove)        .toJson();    CHttp.post(        CHttp.LOVE_LOVECOMMENT,            (data) {          var id = data['id'];          var love = data['love'];          for (var i = 0; i < comments.length; i++) {            if (comments[i].id == id) {              var lovenum = comments[i].lovenum;              if (love == 1) {                lovenum += 1;              } else {                if (lovenum > 0) lovenum -= 1;              }              comments[i].lovenum = lovenum;              comments[i].love = love;            }          }          setState(() {});        },        params: params,        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _onDelComment(CommentModel comment) {    if (!AppUtil.isLogin(context)) {      Navigator.push(              context, MaterialPageRoute(builder: (context) => LoginPage()))          .then((perfect) {        if (perfect != null) {}      });      return;    }    var params = PDelComment(        2,        Provider.of(context, listen: false).userid,        comment.id,id,)        .toJson();    CHttp.post(        CHttp.COMMENT_DEL,            (data) {          for (var i = comments.length - 1; i >= 0; i--) {            if (comments[i].id == comment.id) {              comments.removeAt(i);            }          }          setState(() {});        },        params: params,        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  _onDelDiscuss() {    CHttp.post(        CHttp.DISCUSS_DEL,            (data) {          ToastUtil.showToast(context, '想法删除成功');          Navigator.of(context).pop({'action': 'del', 'id': post.id});        },        params:        PDiscuss(Provider.of(context, listen: false).userid, id)            .toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _onLove() {    if (AppUtil.isLogin(context) == false) {      Navigator.push(          context, MaterialPageRoute(builder: (context) => LoginPage()));      return;    }    _reqPostLove(post);  }
  void _onStar() {    if (AppUtil.isLogin(context) == false) {      Navigator.push(          context, MaterialPageRoute(builder: (context) => LoginPage()));      return;    }    _reqPostStar(post);  }
  void _onReport() {                Navigator.push(                    context,                    MaterialPageRoute(                        builder: (context) => ReportPage('举报想法', post.userid,post.id, 3)));  }
  void _requestDiscuss() {    CHttp.post(        CHttp.DISCUSS_INFO,        (data) {          if (!mounted) {            return;          }          post = PostModel(data);          setState(() {});          _requestFloow(post.userid);        },        params:            PPost(Provider.of(context, listen: false).userid, id).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _requestFloow(String fansid){    CHttp.post(        CHttp.USER_FOLLOWINFO,            (data) {          if (!mounted) {            return;          }          follow = FollowModel(data);          setState(() {});        },        params:        PFollowUser(Provider.of(context, listen: false).userid, fansid).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }  /**   * 请求点单数和评论数   */  void _requestLoveComment() {    CHttp.post(        CHttp.LOVE_LCNUM,        (data) {          if (!mounted) {            return;          }          print(data);        },        params: PCommentNum(3, id).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  /**   * 请求评论列表   */  void _requestNewestComment() {    var fromid = 0;    if (comments.length > 0) {      fromid = comments[0].id;    }    CHttp.post(        CHttp.COMMENT_LATEST,        (data) {          if (!mounted) {            return;          }          List temp_comments = List();          for (var i = 0; i < data.length; i++) {            temp_comments.add(CommentModel(data[i]));          }          comments.insertAll(0, temp_comments);          setState(() {});//          print(data);        },        params: PComment(3, fromid, id).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _reqPostStar(PostModel post) {    print(post);    var star = post.mystar != null&&post.mystar == 1 ? 0 : 1;    CHttp.post(        CHttp.STATR,            (data) {          if (!mounted) {            return;          }          post.mystar = star;          var starnum = post.starnum != null?post.starnum :0;          if (star == 1) {            starnum += 1;          } else {            if (starnum > 0) {              starnum -= 1;            }          }          post.starnum = starnum;          setState(() {});          ToastUtil.showToast(context, star == 1 ? '收藏成功' : '取消收藏');          print(data);        },        params: PStar(Provider.of(context, listen: false).userid, 3,            post.id, star)            .toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }
  void _reqPostLove(PostModel post) {    CHttp.post(        CHttp.LOVE_LOVE,            (data) {          if (!mounted) {            return;          }          print(data);          var love = data['love'];          var lovenum = post.lovenum;          if (love == 1) {            lovenum += 1;          } else {            if (lovenum > 0) {              lovenum -= 1;            }          }          post.lovenum = lovenum;          post.mylove = love;          setState(() {});        },        params: PPostLove(Provider.of(context, listen: false).userid,3,            post.id, post.mylove == 0 ? 1 : 0)            .toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        },        completeCallback: () {
        });  }
  _requestLoves() {    CHttp.post(        CHttp.LOVE_LOVES,            (data) {          if (!mounted) {            return;          }          List temp_loves = List();          for (var i = 0; i < data.length; i++) {            temp_loves.add(LoveModel(data[i]));          }          setState(() {            loves = temp_loves;          });        },        params: PLoves(3, id).toJson(),        errorCallback: (err) {          ToastUtil.showToast(context, err);        });  }}

服务器帖子详情
router.post('/info', function(req, res, next) {    ru.logReq(req);    var id = req.body.id;    var userid = req.body.userid;    if (!id) {        ru.resError(res, '参数错误')    } else {        discussDao.queryDiscussInfo(id, userid, function(err, result) {            if (err) {                ru.resError(res, err)            } else {                if (result.del == 1) {                    ru.resError(res, '作品已删除')                } else {                    ru.resSuccess(res, result);                }            }        });    }});

项目整体功能还在开发中，待基础功能完成后，我会放在Github上，方便大家交流讨论。

                
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