Implementation of WeChat mini program imitating Meituan city selection

This article mainly introduces in detail the city selection of the WeChat mini program imitating Meituan. It has certain reference value. Interested friends can refer to it.

The example of this article is to share with everyone the WeChat mini program. Program city selector for your reference, the specific content is as follows

The code is very simple.

var city = require('../../utils/city.js'); var app = getApp() Page({ data: { searchLetter: [], showLetter: "", winHeight: 0, // tHeight: 0, // bHeight: 0, cityList: [], isShowLetter: false, scrollTop: 0,//置顶高度 scrollTopId: '',//置顶id city: "上海市", hotcityList: [{ cityCode: 110000, city: '北京市' }, { cityCode: 310000, city: '上海市' }, { cityCode: 440100, city: '广州市' }, { cityCode: 440300, city: '深圳市' }, { cityCode: 330100, city: '杭州市' }, { cityCode: 320100, city: '南京市' }, { cityCode: 420100, city: '武汉市' }, { cityCode: 410100, city: '郑州市' }, { cityCode: 120000, city: '天津市' }, { cityCode: 610100, city: '西安市' }, { cityCode: 510100, city: '成都市' }, { cityCode: 500000, city: '重庆市' }] }, onLoad: function () { // 生命周期函数--监听页面加载 var searchLetter = city.searchLetter; var cityList = city.cityList(); var sysInfo = wx.getSystemInfoSync(); var winHeight = sysInfo.windowHeight; var itemH = winHeight / searchLetter.length; var tempObj = []; for (var i = 0; i < searchLetter.length; i++) { var temp = {}; temp.name = searchLetter[i]; temp.tHeight = i * itemH; temp.bHeight = (i + 1) * itemH; tempObj.push(temp) } this.setData({ winHeight: winHeight, itemH: itemH, searchLetter: tempObj, cityList: cityList }) }, onReady: function () { // 生命周期函数--监听页面初次渲染完成 }, onShow: function () { // 生命周期函数--监听页面显示 }, onHide: function () { // 生命周期函数--监听页面隐藏 }, onUnload: function () { // 生命周期函数--监听页面卸载 }, onPullDownRefresh: function () { // 页面相关事件处理函数--监听用户下拉动作 }, onReachBottom: function () { // 页面上拉触底事件的处理函数 }, clickLetter: function (e) { console.log(e.currentTarget.dataset.letter) var showLetter = e.currentTarget.dataset.letter; this.setData({ showLetter: showLetter, isShowLetter: true, scrollTopId: showLetter, }) var that = this; setTimeout(function () { that.setData({ isShowLetter: false }) }, 1000) }, //选择城市 bindCity: function (e) { console.log("bindCity") this.setData({ city: e.currentTarget.dataset.city }) }, //选择热门城市 bindHotCity: function (e) { console.log("bindHotCity") this.setData({ city: e.currentTarget.dataset.city }) }, //点击热门城市回到顶部 hotCity: function () { this.setData({ scrollTop: 0, }) } })

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