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 " data-current="0" bindtap="swichNav"> tab1</view>
<view class=" {{currentTab==1 " 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 " data-current="0" bindtap="swichNav">tab1</text>
<text class=" {{currentTab==1 " data-current="1" bindtap="swichNav">tab2 </text>
<text class=" {{currentTab==2 " data-current="2" bindtap="swichNav">tab3 </text>
</view>
<swiper current="{{currentTab}}" bindchange="bindChange" class='swp' style="height: {{aheight">
<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="/UploadFiles/2021-04-02/del.png">
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"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"htmlcode">
"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"&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"htmlcode">
<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"<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="/UploadFiles/2021-04-02/filter.wxs">
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"htmlcode">
<view class="top1 ovf">
<view class="" ><navigator url="/pages/hishome/hishome" open-type="navigate">详情</navigator></view>
<view class=" {{currentTab==0 " data-current="0" bindtap="swichNav"> 产检 </view>
<view class=" {{currentTab==1 " data-current="1" bindtap="swichNav"> 建档 </view>
<view class=" {{currentTab==2 " 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！