前言

排名不分先后，按自己的习惯来的。

总结经验，不喜勿喷哦~

一、tab切换

<view class=" {{currentTab==0 ? 'select' : ''}}" data-current="0" bindtap="swichNav"> tab1</view><view class=" {{currentTab==1 ? 'select' : ''}}" data-current="1" bindtap="swichNav"> tab2</view>Page({data:{ // tab切换 currentTab: 0,},swichNav: function (e) { var that = this; if (this.data.currentTab === e.target.dataset.current) { return false; } else { that.setData({ currentTab: e.target.dataset.current }) } },})

二、swiper切换

<view> <text class=" {{currentTab==0 ? 'select' : ''}}" data-current="0" bindtap="swichNav">tab1</text> <text class=" {{currentTab==1 ? 'select' : ''}}" data-current="1" bindtap="swichNav">tab2 </text> <text class=" {{currentTab==2 ? 'select' : ''}}" data-current="2" bindtap="swichNav">tab3 </text> </view> <swiper current="{{currentTab}}" bindchange="bindChange" class='swp' style="height: {{aheight?aheight+'px':'auto'}}"> <swiper-item>页面1</swiper-item> <swiper-item>页面2</swiper-item> <swiper-item>页面3</swiper-item> </swiper>Page({data:{ currentTab: 0, aheight: ''},// 滑动切换 bindChange: function (e) { var that = this; that.setData({ currentTab: e.detail.current }); }, //点击tab切换 swichNav: function (e) { var that = this; if (this.data.currentTab === e.target.dataset.current) { return false; } else { that.setData({ currentTab: e.target.dataset.current }) } }, // swiper 自适应高度 onLoad: function (options) { var that = this wx.getSystemInfo({ success: function (res) { that.setData({ aheight: res.screenHeight }); } }) },})

三、图片上传

<view class="ovf img_box"> <block wx:for="{{img_arr}}" wx:key="{{item.id}}" bindtap="del"> <view class='logoinfo' data-index="{{index}}"> <view class="del"> <image src="http://192.168.2.61/wx_ry/del.png" mode="widthFix" bindtap="deleteImage"></image> </view> <image src='{{item}}' mode="widthFix"></image> </view> </block> <view class="upload"> <image src="http://192.168.2.61/wx_ry/add.png" mode="widthFix" bindtap="upimg"></image> </view> </view>.upload { width: 20%; float: left; margin-top:33rpx ; }.upload image{ width: 100%; }.logoinfo{ width: 20%; float: left; margin-right:2% ; }.del{ width: 20%; float: right; }.del image{ width: 100%; }.logoinfo image{ width: 100%; }page({data:{ img_arr: []}, // 图片上传 upimg: function () { var that = this; if (this.data.img_arr.length < 3) { wx.chooseImage({ sizeType: ['original', 'compressed'], success: function (res) { that.setData({ img_arr: that.data.img_arr.concat(res.tempFilePaths), }) } }) } else { wx.showToast({ title: '最多上传三张图片', icon: 'loading', duration: 3000 }); } }, // 删除图片 deleteImage: function (e) { var that = this; var index = e.currentTarget.dataset.index; //获取当前长按图片下标 console.log(that.data.img_arr) wx.showModal({ title: '提示', content: '确定要删除此图片吗？', success: function (res) { if (res.confirm) { console.log('点击确定了'); that.data.img_arr.splice(index, 1); } else if (res.cancel) { console.log('点击取消了'); return false; } that.setData({ img_arr: that.data.img_arr }); } }) }, // 上传 upload: function () { var that = this for (var i = 0; i < this.data.img_arr.length; i++) { wx.uploadFile({ url: 'https:***/submit', filePath: that.data.img_arr[i], name: 'content', formData: adds, success: function (res) { console.log(res) if (res) { wx.showToast({ title: '已提交发布！', duration: 3000 }); } } }) } this.setData({ formdata: '' }) }, // 提交 formSubmit: function (e) { console.log('form发生了submit事件，携带数据为：', e.detail.value) }})

四、scroll-view滚动页

<scroll-view class="scroll-view_H " scroll-x="true" bindscroll="scroll"> <view class="fxjx_b1" style="display: inline-block"> <view class="listb">1</view> </view> <view class="fxjx_b1" style="display: inline-block"> <view class="listb">2</view> </view> </scroll-view>.scroll-view_H{ white-space: nowrap; height: 600rpx; }.listb{ padding: 25rpx; white-space: normal; }

五、授权登录

app.js

//app.jsApp({ globalData: { userInfo: null, unionid:null, token:'' }, onLaunch: function () { // 判断是否授权 wx.getSetting({ success: (res) => { //箭头函数为了处理this的指向问题 if (res.authSetting["scope.userInfo"]) { console.log("已授权"); // 获取用户信息 wx.getUserInfo({ success: (res) => { //箭头函数为了处理this的指向问题 // this.globalData.isok=true this.globalData.token='ok' var that =this console.log(res.userInfo); //用户信息结果 wx.getStorage({ key: 'unionid', success(res) { that.globalData.unionid=res.data } }) this.globalData.userInfo = res.userInfo; if (this.userInfoReadyCallback) { //当index.js获取到了globalData就不需要回调函数了，所以回调函数需要做做一个判断，如果app.js中有和这个回调函数，那么就对这个函数进行调用，并将请求到的结果传到index.js中 this.userInfoReadyCallback(res.userInfo); } } }) } else{ console.log("未授权"); wx.removeStorage({ key: 'unionid' }) } } }) }})

wxml

<button open-type="getUserInfo" lang="zh_CN" bindgetuserinfo="onGotUserInfo" class="btn" data-url='../yzzs/yzzs'> 防疫针助手 </button>

index.js

// pages/index/index.jsconst app = getApp()Page({ data: { token:'' }, onGotUserInfo: function (e) { var that = this if (this.data.token != 'ok' && app.globalData.token != 'ok') { wx.getSetting({ success: (res) => { //箭头函数为了处理this的指向问题 if (res.authSetting["scope.userInfo"]) { wx.login({ success: function (data) { console.log('获取登录 Code：' + data.code) var postData = { code: data.code }; wx.request({ url: 'https://m.renyiwenzhen.com/rymember.php?mod=xcxlogin&code=' + postData.code + '&nickname=' + e.detail.userInfo.nickName, data: {}, header: { 'content-type': 'application/json' }, success: function (res) { console.log(res.data); that.data.token='ok'; wx.setStorage({ key: "unionid", data: res.data.unionid }) wx.navigateTo({ url: e.target.dataset.url }) }, fail: function () { console.log('1'); } }) }, fail: function () { console.log('登录获取Code失败！'); } }) } } }) } else{ wx.navigateTo({ url: e.target.dataset.url }) } }})

六、发送请求

wx.request({ url: 'https://m.renyiwenzhen.com/xcx_ajax.php?action=babylist', //仅为示例，并非真实的接口地址 method: 'post', data: { unionid: uni }, header: { 'content-type': 'application/x-/xcx_ajax.php?action=cjdetail', method: 'post', data: { id: options.id }, header: { 'content-type': 'application/x-www-form-urlencoded' // 默认值 }, success(res) { that.setData({ msg: res.data.cjmag.cjxq.replace(/\<p>/g, "<p style='line-height: 24px; font-size:15px;text-align: justify;margin:15px 0;'>") }) } })

十一、filter过滤数据

1、在根目录下的utils文件夹里创建一个名为filter.wxs文件 2、写入自己要定义的条件

var xb=function (v) { var xingb='' if(v==1){ xingb="男宝宝" } else{ xingb="女宝宝" } return xingb}module.exports = { xb:xb}

3、在页面中引入使用

<wxs src="../../utils/filter.wxs" module="filter" /><view><text>{{filter.xb(isxb)}}</text></view>

十二、检测版本更新

app.js

onLaunch: function () { if (wx.canIUse('getUpdateManager')) { const updateManager = wx.getUpdateManager() updateManager.onCheckForUpdate(function (res) { // 请求完新版本信息的回调 if (res.hasUpdate) { updateManager.onUpdateReady(function () { wx.showModal({ title: '更新提示', content: '新版本已经准备好，是否重启应用？', success: function (res) { // res: {errMsg: “showModal: ok”, cancel: false, confirm: true} if (res.confirm) { // 新的版本已经下载好，调用 applyUpdate 应用新版本并重启 updateManager.applyUpdate() } } }) }) updateManager.onUpdateFailed(function () { // 新的版本下载失败 wx.showModal({ title: '已经有新版本了哟~', content: '新版本已经上线啦，请您删除当前小程序，重新搜索打开哟' }) }) } }) }}

十三、点击tab跳转对应的的项目页面

我们经常会遇到这种需求：

点击对应的的tab，这里比如说是A页。

跳转到对应项目的页面，这里比如说是B页。

A页：

<view class="project_nab ovf"> <view class="on"> 详情 </view> <view class="project_item" bindtap="goitem" data-url='jd'>建档</view> <view class="project_item" bindtap="goitem" data-url='cj'>产检</view> <view class="project_item" bindtap="goitem" data-url='fm'>分娩</view> </view> goitem:function (e) { wx.navigateTo({ url: '/pages/item/item?url=' + e.target.dataset.url }) },

B页：

<view class="top1 ovf"> <view class="" ><navigator url="/pages/hishome/hishome" open-type="navigate">详情</navigator></view> <view class=" {{currentTab==0 ? 'select' : ''}}" data-current="0" bindtap="swichNav"> 产检 </view> <view class=" {{currentTab==1 ? 'select' : ''}}" data-current="1" bindtap="swichNav"> 建档 </view> <view class=" {{currentTab==2 ? 'select' : ''}}" data-current="2" bindtap="swichNav"> 分娩 </view> </view> onLoad: function (options) { var that = this; console.log(options.url) if (options.url === 'cj') { that.setData({ currentTab: '0', btn: '产检', set: 'cj' }); } else if (options.url === 'jd') { that.setData({ currentTab: '1', btn: '建档', set: 'jd' }); } else { that.setData({ currentTab: '2', btn: '分娩', set: 'fm' }); } }

总结

以上所述是小编给大家介绍的微信小程序实用代码段，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！
如果你觉得本文对你有帮助，欢迎转载，烦请注明出处，谢谢！