一、前言

二、主要内容

1、功能描述：通过选择类型和时间对请求到的活动进行帅选

2、具体实现

2.1根据城市请求活动

/*获取活动 :根据城市，日期，活动类型获取*/getActicityByLocationId:function(locId, dayType, eventType ){var that = this;

console.log("locId: "+ locId + ",dayType: " +dayType+ ", type: " +eventType)

wx.showToast({

title:'加载中',

icon:'loading',

duration:10000});var parameter ="?"locId&& (parameter +="loc=" +locId)

dayType&& (parameter += "day_Type=" +dayType)

eventType&& (parameter += "type="+eventType)//请求活动列表

var eventListURL = app.globalData.doubanBase + app.globalData.event_list_url + parameter + "&&start=0&&count=50"wx.request({

url: eventListURL,

data:{},

method:'GET',

header:{'content-type': 'json'},

success:function(res){

console.log(res)

that.handleEventListData(res.data.events)

},

fail:function(){

},

complete:function(){

wx.hideToast()

}

})

}

请求到的活动信息如下图所示，下面是没有分类的所有活动：

2.2、对上面请求到的活动分类

//处理活动信息

handleEventListData:function(data){var events ={}for(let idx indata){var event =data[idx]var category =event.category

console.log(category)//将所有的活动筛选出来

if(!events[category]){

events[category]=[]

}

console.log(events)//将上面的活动组装成以category为属性，ommonweal：[{ … }, { … }]

//格式化时间

var time_str = event.time_str//"2019.04.23 周二 起"

var time = ""

if(typeof time_str == 'string'){var time_arr = time_str.split(" ")

time= time_arr[0]

}var temp ={

id: event.id,

image:event.image,

loc_name:event.loc_name,

owner:event.owner,

category:event.category,

category_name:event.category_name,

title:event.title,

wisher_count:event.wisher_count,

has_ticket:event.has_ticket,

content:event.content,

can_invite:event.can_invite,

time_str: time,

album: event.album,

participant_count: event.participant_count,

tags: event.tags,

image_hlarge: event.image_hlarge,

begin_time: event.begin_time,

price_range: event.price_range,

geo: event.geo,

image_lmobile: event.image_lmobile,

loc_id: event.loc_id,

end_time: event.end_time,

address: event.address,

}

events[category].push(temp)//event里面根据category来分

}var keys = Object.keys(events); //方法会返回一个由一个给定对象的自身可枚举属性组成的数组，数组中属性名的排列序和使用 for...in 循环遍历该对象时返回的顺序一致

keys.sort();

console.log(events)var eventsKey =[]for(let i inkeys){var key =keys[i]var arr =events[key]if(arr.length>=4){

eventsKey.push(key)//显示活动类型大于4的

}

}

console.log(events,eventsKey)this.setData({"events":events, "eventsKey":eventsKey

})

},

处理之后活动为：

按照

event.category对活动进行分类

eventsKey筛选出活动类型中数量大于4的显示

3、点击选择类型时间，跳转到筛选页面

3.1在筛选页面生命周期onload中

onLoad: function(options) {

console.log(options)var windowWidth =app.globalData.windowWidthvar windowHeight =app.globalData.windowHeight

console.log(windowHeight)//获取到当前窗口的宽和高

var locId = options.locId; //得到当前的城市id

var eventType =options.type;//自定义一个对象，活动种类

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"}

};//自定义时间对象

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，travel:{id: "16", name: "travel", title: "旅行", color: "#cccc99"}

var g_eventCategory =app.globalData.eventCategory;

console.log(g_eventCategory)this.setData({"locId":locId, //当前的城市id

"typeCategory": typeCategory, //上面自定义的活动类型对象

"dateCategory": dateCategory, //上面自定义的时间类型对象

"g_eventCategory": g_eventCategory, // "windowWidth": windowWidth,"windowHeight": windowHeight

})//请求活动列表,

this.getEventListData();

}

3.2：根据当前的城市ID, type, data请求数据

getEventListData:function(){var that = this;var offset = that.data.eventsData["offset"]||0;

console.log(offset)//当前的活动条数

var total = that.data.eventsData['total']||999;//总共的活动数目

if(offset>=total){return;

}

wx.showToast({

title:'加载中',

icon:'loading',

duration:10000});var params = "?"

this.data.locId && (params += "loc=" +this.data.locId)this.data.type && (params +="&&type=" + this.data.type)this.data.date && (params +="&&day_type=" +this.data.date)var url = app.globalData.doubanBase + app.globalData.event_list_url + params + "&&start=" + offset + "&&count=5";

console.log(url)

wx.request({

url: url,

method:'GET',

header:{'content-type':'json'},

success:function(res){var data = res.data //得到城市的所有活动

console.log(data)

that.processEventListData(data)

}

})

}

3.3对请求到的活动进行处理

processEventListData:function(data){var list = this.data.eventsData["event"]||[];var offset = this.data.eventsData["offset"]||0;var total = data.total;//总条数

console.log(data.events.length)

offset+=data.events.length;//console.log(offset)

for(let idx indata.events){var event =data.events[idx]var time_str =event.time_strvar time =""

//取出时间里面的日期

if(typeof time_str =="string"){var time_arr = time_str.split(" ");

time= time_arr[0]

}var temp ={

id: event.id,

image: event.image,

loc_name: event.loc_name,

owner: event.owner,

category: event.category,

title: event.title,

wisher_count: event.wisher_count,

has_ticket: event.has_ticket,

content: event.content,

can_invite: event.can_invite,

time_str: time,

album: event.album,

participant_count: event.participant_count,

tags: event.tags,

image_hlarge: event.image_hlarge,

begin_time: event.begin_time,

price_range: event.price_range,

geo: event.geo,

image_lmobile: event.image_lmobile,

loc_id: event.loc_id,

end_time: event.end_time,

address: event.address,

};

list.push(temp)

}var readyData ={}

readyData["eventsData"]={"events":list,"offset":offset,"total":total

}this.setData(readyData)

console.log(this.data)

},

3.4、类型和事件切换：

(1)html代码：

如果当前的type==all就显示类型，并且让当前字体不高亮

如果当前日期为future显示时间，并且让当前时间不高亮

{{type=='all'?'类型':g_eventCategory[type].title}}

{{date == 'future' ? '时间':dateCategory[date].title}}

地点

{{eventType.title}}

(2)为类型和时间分别注册点击事件：

resetMenuTap: function () {

var readyData = { "isTypeTap": false, "isDateTap": false }

this.setData(readyData)

},

/*是否显示选择类型*/handleType:function(){this.setData({"showCategory":true, //控制是否显示下面的子选项，true为显示

"eventCategory": this.data.typeCategory, //所有的类型

"current":this.data.type //当前的类型

})this.resetMenuTap()this.setData({"isTypeTap": true //是否点击类型选项

})

},

为时间注册点击事件：

resetMenuTap: function () {

var readyData = { "isTypeTap": false, "isDateTap": false }

this.setData(readyData)

},

/*选择显示时间*/handleTime:function(){this.setData({"showCategory": true, //控制是否选择下面的子选项

"eventCategory":this.data.dateCategory, //日期类型

"current":this.data.date //当前时间

})this.resetMenuTap();//每次点击都让以前的置为false

this.setData({"isDateTap":true})

console.log(this.data.eventCategory)

},

切换的时候子标签也不一样是因为，点击日期的时候eventCategory和current里面存放的是日期对象， 点击时间的时候eventCategory里面存放的是时间对象。

3.5、对子标签进行处理：

下面显示的内容最开始是显示的所有的类型，选择不同的子标签就会筛选出不同的类型，点击某个子标签的时候将当前对应的, 类型的id,name和title传过去。

选择类型时：

eventCategory:

选择时间时：

{{eventType.title}}

/*点击某个子类*/handleCategory:function(event){var id =event.currentTarget.dataset.id;

console.log(id)

console.log(this.data.isTypeTap)

console.log(this.data.isDateTap)var readyData = {"showCategory":false} //点击子标签的时候，将当前的种类选择隐藏

this.data.isTypeTap && (readyData["type"]= id) //设置type this.data.isDateTap && (readyData["date"]=id)//设置date

readyData["eventsData"]={}this.setData(readyData)

console.log(this.data.date)this.getEventListData(); //根据对应的id type date请求活动信息this.resetMenuTap(); //每次点击之后重置当前状态

},

三、总结