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.js App({ globalData: { userInfo: null,unionid:null,token:'' },onLaunch: function () { /* 已授权之后,自动获取用户信息 */ // 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.js const 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-www-form-urlencoded' // 默认值 },success(res) { // console.log(uni) console.log(res.data) that.setData({ list: res.data.bblist }) } })
七、标题栏及底部栏
全局标题栏
"window": { "backgroundTextStyle": "light","navigationBarBackgroundColor": "#3EC8C8","navigationBarTitleText": "乳孕呵护","navigationBarTextStyle": "white" }
局部标题栏
{ "usingComponents": {},"navigationBarBackgroundColor": "#fff","navigationBarTextStyle": "black","navigationBarTitleText": "附近医院" }
全局底部栏
"tabBar": { "color": "#e4e4e4","selectedColor": "#333","list": [ { "pagePath": "pages/index/index","text": "发现","iconPath": "./images/find.png","selectedIconPath": "./images/finded.png" },{ "pagePath": "pages/his/his","text": "医院","iconPath": "./images/his.png","selectedIconPath": "./images/hised.png" },{ "pagePath": "pages/stu/stu","text": "经验","iconPath": "./images/stu.png","selectedIconPath": "./images/stued.png" },{ "pagePath": "pages/my/my","text": "我的","iconPath": "./images/my.png","selectedIconPath": "./images/myed.png" } ] }
八、navigator
1、wxml
<navigator url="/pages/hishome/hishome" open-type="navigate" hover-class="none"> 底部栏没有的路由 </navigator> <navigator open-type="switchTab" url="/pages/his/his" hover-class="none"> 底部栏有的路由 </navigator>
2、js
go: function (e) { wx.navigateTo({ url: '../eatxq/eatxq?id=' + e.currentTarget.dataset.id + "&name=" + e.currentTarget.dataset.name }) }
九、加载条
<loading hidden="{{onff}}">加载中</loading> <view>页面</view>
加载完成true
wx.request({ url: 'https://m.renyiwenzhen.com/xcx_ajax.PHP?action=caneatsearch',method: 'post',data: { search: options.search },success(res) { that.setData({ list: res.data.fllist,onff: true }) } })
十、富文本处理
<view class="txt"> <rich-text nodes="{{msg}}" ></rich-text> </view>
利用正则修改收到的数据
wx.request({ url: 'https://m.renyiwenzhen.com/xcx_ajax.PHP?action=cjdetail',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。
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我们网站的支持!
如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!