微信小程序-豆瓣同城-即速应用

代码地址如下：
http://www.demodashi.com/demo/12121.html

一、准备工作

软件环境：微信开发者工具
官方下载地址：https://mp.weixin.qq.com/debug/wxadoc/dev/devtools/download.html

项目目录结构

小程序

二、程序实现步骤

主页从微信用户信息获取用户所在的城市，如果用户所在城市支持同城活动，则分类显示该城市的活动列表，没有则显示深圳的活动列表。

// 获取用户所在的城市uidif (typeof app.globalData.userInfo.city == "string") {  var cityUid = app.globalData.userInfo.city.toLowerCase();  app.globalData.cityUid = cityUid;}/** 处理城市信息 */processLocationListData(data) {  var locs = {};  for (let idx in data) {    var loc = data[idx];    locs[loc.uid] = loc;  }  // 默认加载当前城市的活动，如果不支持当前城市，则默认加载深圳的活动  var cityUid = app.globalData.cityUid;  var currentLoc = null;  if (!locs[cityUid]) {    currentLoc = locs[defaultUid];  } else {    currentLoc = locs[cityUid];  }  app.globalData.locId = currentLoc.id;  app.globalData.city = currentLoc.name;  app.globalData.locs = locs;  // 获取当前城市名称，如果当前城市不再列表中，则显示深圳  this.setData({ "city": app.globalData.city, "currentLoc": currentLoc });  // 获取当前城市的活动列表  this.getEventByLocationId(currentLoc.id);}

城市切换页，用户点击城市后返回主页并且加载该城市的活动列表。城市列表按照首字母分类排序，支持拼音搜索跟中文搜索。

data: {  hotCityUid: ["beijing", "shanghai", "guangzhou", "shenzhen", "chengdu", "nanjing", "wuhan", "hangzhou", "chongqing"],  hotCity: [],  letterList: [],  cityList: {}},/** 处理城市信息 */processCityListData: function (locs) {  if (locs && typeof locs == "object") {    // 提取热门城市    var hotCity = this.data.hotCityUid.map(function (item, index, input) {      return locs[item];    });    // 按字母顺序排序    var keys = Object.keys(locs);    keys.sort();    // 提取所有城市并按首字母归类    var cityList = {};    var letterList = [];    for (let idx in keys) {      var key = keys[idx];      var letter = key.substring(0, 1);      var city = locs[key];      if (!cityList[letter]) {        cityList[letter] = [];        letterList.push(letter);      }      cityList[letter].push(city);    }    console.log("cityList: " + cityList);    this.setData({      "hotCity": hotCity, "letterList": letterList, "cityList": cityList    });  }}，

城市列表页面布局

<text class="hot-city-title">热门城市</text><view class="hot-city">  <view class="hot-city-content">    <block wx:for="{{hotCity}}" wx:for-item="city">      <text class="city-box" data-id="{{city.id}}" data-name="{{city.name}}" data-uid="{{city.uid}}" bindtap="bindCityTap">{{city.name}}</text>    </block>  </view></view><view class="city-list">  <block wx:for="{{letterList}}" wx:for-item="letter">    <text class="list-title">{{letter}}</text>    <view class="list-content">      <block wx:for="{{cityList[letter]}}" wx:for-item="city">        <text class="city-block" data-id="{{city.id}}" data-name="{{city.name}}" data-uid="{{city.uid}}" bindtap="bindCityTap">{{city.name}}</text>      </block>    </view>  </block></view>

分类筛选支持按活动类型、活动时间筛选，点击筛选类别之后重新加载数据。

onLoad: function (options) {  // 页面初始化 options为页面跳转所带来的参数  var locId = options.locId;  var eventType = options.type;  // 初始化活动类型列表  var typeCategory = {    "all": { "id": "all", "name": "all", "title": "全部" },    "music": { "id": "music", "name": "music", "title": "音乐" },    "film": { "id": "film", "name": "film", "title": "电影" },    "drama": { "id": "drama", "name": "drama", "title": "戏剧 " },    "commonweal": { "id": "commonweal", "name": "commonweal", "title": "公益" },    "salon": { "id": "salon", "name": "salon", "title": "讲座 " },    "exhibition": { "id": "exhibition", "name": "exhibition", "title": "展览" },    "party": { "id": "party", "name": "party", "title": "聚会" },    "sports": { "id": "sports", "name": "sports", "title": "运动" },    "travel": { "id": "travel", "name": "travel", "title": "旅行" },    "course": { "id": "course", "name": "course", "title": "课程" }  };  // 初始化活动日期类型列表  var dateCategory = {    "future": { "id": "future", "name": "future", "title": "全部" },    "today": { "id": "today", "name": "today", "title": "今天" },    "tomorrow": { "id": "tomorrow", "name": "tomorrow", "title": "明天" },    "weekend": { "id": "weekend", "name": "weekend", "title": "周末" },    "week": { "id": "week", "name": "week", "title": "近期" },  };  // 全局保存的活动类型信息  var g_eventCategory = app.globalData.eventCategory;  this.setData({ "locId": locId, "type": eventType, "eventCategory": typeCategory, "current": this.data.type, "typeCategory": typeCategory, "dateCategory": dateCategory, "g_eventCategory": g_eventCategory });  // 请求活动列表  this.getEventListData();},/** 选择类型 */handleType: function (event) {  this.setData({ "eventCategory": this.data.typeCategory, "current": this.data.type, "showCategory": true });  this.resetMenuTap();  this.setData({ "isTypeTap": true });  console.log("handleType");},/** 点击某个子类型 */handleCategory: function (event) {  var id = event.currentTarget.dataset.id;  var readyData = { "showCategory": false };  this.data.isTypeTap && (readyData["type"] = id);  this.data.isDateTap && (readyData["date"] = id);  this.setData(readyData);  this.getEventListData();  this.resetMenuTap();},

筛选标签切换布局

  <view class="session-header">    <text class="type-tab {{type == 'all'?'tab-normal':'tab-HL'}}" bindtap="handleType">{{type == 'all'?'类型':g_eventCategory[type].title }}</text>    <text class="time-tab {{date == 'future'?'tab-normal':'tab-HL'}}" bindtap="handleTime">{{date == 'future' ? '时间' : dateCategory[date].title}}</text>    <text class="loc-tab" bindtap="handleLoc">地点</text>  </view>  <view wx:if="{{showCategory}}" class="category-session">    <view class="type-category-session">      <block wx:for="{{eventCategory}}" wx:for-item="category">        <text class="category {{current == category.id ? 'category-HL': ''}}" catchtap="handleCategory" data-id="{{category.id}}" data-name="{{category.name}}" data-title="{{category.title}}">{{category.title}}</text>      </block>    </view>    <view class="category-cover" bindtap="handleCoverTap"></view>  </view>

活动详情页显示的内容比较多，图片下载，查看位置，拨打电话的功能微信小程序原生支持，很快就做出来了。这里要说的是发表评论的左右切换动画效果，活动评论不支持上传到服务器。

/** 用户点击感兴趣，执行动画 */handleWish: function (event) {  this.setData({ "action": "wish", "beforeAnimation": "left", "value": "" });  var animation = wx.createAnimation({    duration: 400,    timingFunction: 'linear'  })  animation.translateX(375).step()  this.setData({    animationData: animation.export()  })  setTimeout(function () {    this.reset();  }.bind(this), 400);},/** 用户点击要参加，执行动画 */handleJoin: function (event) {  this.setData({ "action": "join", "beforeAnimation": "right", "value": "" });  var animation = wx.createAnimation({    duration: 400,    timingFunction: 'linear'  })  animation.translateX(-375).step()  this.setData({    animationData: animation.export()  });  setTimeout(function () {    this.reset();  }.bind(this), 400);},/** 动画完成后，恢复状态 */reset: function () {  var animation = wx.createAnimation({    duration: 0,    timingFunction: 'linear'  })  animation.translateX(0).step();  this.setData({ "beforeAnimation": "", animationData: animation.export() });},

感兴趣与要参加页面布局

<view class="container">  <view class="session-header {{action}}-session">    <text class="wish" bindtap="handleWish">感兴趣</text>    <text class="join" bindtap="handleJoin">要参加</text>  </view>  <view class="session-content {{beforeAnimation}}" animation="{{animationData}}">    <text class="title">{{title}}</text>    <text class="some-count">{{somecount}}</text>    <textarea class="textarea" placeholder-class="placeholder" placeholder="写点评论吧..." focus="true" data-action="{{action}}" bindinput="handleInput" value="{{value}}" />    <button class="confirm" size="default" type="primary" bindtap="handleComfirm" data-action="{{action}}">确定</button>  </view></view>