小编给大家分享一下mpvue小程序如何实现仿qq左滑置顶删除组件,希望大家阅读完这篇文章之后都有所收获,下面让我们一起去探讨吧!
效果图:
实现:
1,上面说过mpvue的坑,比如里面的每一个的元素都是overflow:hidden,并且似乎都继承了display:block。(看小程序开发工具是这样的,具体源码没看,就只能猜猜)。所以主要解决是让元素overflow:scroll,这个主要是看效果的时候会用到
2,左滑和右滑,这又是一个坑。本以为mpvue的滑动事件会和vue的一模一样。开开心心的按着原来想法撸,发现怎么滑都滑不动,果断打印一波数据,发现滑动事件大有奥妙!
3,布局方面我采用的是rpx+flex。
4,点击时候置顶与取消置顶是通过json数据的top实现的。删除是用数组的splice()方法。
5,滑动效果是css动画控制的。
下面直接贴代码:如果看不懂可以嫌麻烦可以去我的github:https://github.com/JB-Chen/mpvue-slide
程序员大佬们,觉得可以就给个star,以资鼓励一下!
HTML代码:
主要的html代码:
<template>
<div class="container">
<!-- 头部 -->
<div class="head">
<img class="userinfo-avatar" v-if="userInfo.avatarUrl" :src="userInfo.avatarUrl" background-size="cover"/>
<span class="head-info">消息</span>
</div>
<!-- 搜索 -->
<div class="search">
<input type="search"/>
<span>搜索</span>
</div>
<!-- 内容 -->
<div class="infoAll" v-for="(item,index) in commitInfo" :key="index">
<ul v-if="item.top">
<li @touchstart="touchStart($event)" @touchend="touchEnd($event,index)" :data-type="item.type" >
<div class="imgInfo" @click="recover(index)">
<img :src="item.img">
</div>
<div class="centerInfo">
<div class="name">
<span>{{item.name}}</span>
</div>
<div class="sonName">
<span>{{item.sonName}}</span>
</div>
</div>
<div class="timeInfo" @click="recover(index)">
<div class="time">
<text>{{item.time}}</text>
</div>
<div class="infoNum" >
<text >{{item.infoNum}}</text>
</div>
</div>
<div class="top" @click="top(index)" >
取消置顶
</div>
</li>
</ul>
</div>
<div class="infoAll" v-for="(item,index) in commitInfo" :key="index">
<!-- {{item.img}} -->
<ul v-if="!item.top">
<li @touchstart="touchStart($event)" @touchend="touchEnd($event,index)" :data-type="item.type">
<div class="imgInfo" @click="recover(index)">
<img :src="item.img">
</div>
<div class="centerInfo">
<div class="name">
<span>{{item.name}}</span>
</div>
<div class="sonName">
<span>{{item.sonName}}</span>
</div>
</div>
<div class="timeInfo" @click="recover(index)">
<div class="time">
<text>{{item.time}}</text>
</div>
<div class="infoNum" >
<text >{{item.infoNum}}</text>
</div>
</div>
<div class="top" @click="top(index)">
置顶
</div>
<div class="delect" @click="delect(index)">
删除
</div>
</li>
</ul>
</div>
</div>
</template>
css代码:
// 头部
*{
margin:0px;
padding: 0px;
}
.head {
width: 100%;
height:130rpx;
background-color: #38A7FA;
margin-top:-195rpx;
display: flex;
align-items: center;
.head-info{
color: #fff;
font-size:30rpx;
margin-left: 30%;
margin-top:20rpx;
letter-spacing: 4rpx;
}
.userinfo-avatar {
width: 80rpx;
height: 80rpx;
margin: 20rpx;
border-radius: 50%;
margin-top:30rpx;
}
}
.search{
width: 90%;
margin-top:20rpx;
margin-bottom: 20rpx;
input{
width: 100%;
height: 20rpx;
background-color: #F3F3F3;
border-radius: 5rpx;
z-index: 0;
}
span{
position: absolute;
color: #B5B5B5;
font-size: 24rpx;
margin-top:-44rpx;
z-index: 999;
margin-left: 42%;
text-align: center;
}
}
.infoAll{
width: 100%;
ul{
width: 100%;
// overflow-x: scroll;
li{
-webkit-transition: all 0.2s;
transition: all 0.2s;
width: 1100rpx;
height: 150rpx;
// background-color: red;
line-height: 150rpx;
border-bottom: 1px solid #E0EEF1;
// 垂直居中, // 子div水平排列
display:flex;
// justify-content:center;
align-items:center;
.imgInfo{
width: 100rpx;
height: 100rpx;
border-radius: 50%;
background-color: #38A7FA;
margin-left: 2%;
img{
width: 100rpx;
height: 100rpx;
border-radius: 50%;
overflow: hidden;
}
}
.centerInfo{
width: 40%;
height: 150rpx;
margin-left: 2%;
.name{
margin-top:-20rpx;
span{
font-size: 35rpx;
}
}
.sonName{
margin-top:-110rpx;
span{
font-size: 24rpx;
color: #7C8489;
}
}
}
.timeInfo{
width: 15%;
height: 150rpx;
margin-left: 6%;
.time{
margin-top:-20rpx;
color: #92A0A1;
font-size: 25rpx;
position: absolute;
}
.infoNum{
width:50rpx;
display:flex;
align-items:center;
justify-content:center;
height: 30rpx;
border-radius: 10rpx;
background-color: #93D5ED;
margin-left: 10rpx;
margin-top: 70rpx;
}
}
.top{
width: 15%;
height: 150rpx;
background-color: #C4C7CD;
color: #fff;
font-size: 34rpx;
text-align:center
}
.delect{
width: 15%;
height: 150rpx;
background-color: #FF3B32;
color: #fff;
font-size: 34rpx;
text-align:center
}
}
}
}
li[data-type="0"]{
transform: translate3d(0,0,0);
}
li[data-type="1"]{
transform: translate3d(-400rpx,0,0);
}
js主要代码:
<script>
import card from '@/components/card'
export default {
data () {
return {
userInfo: {},
commitInfo:[
{
img:"http://img3.imgtn.bdimg.com/it/u=3067730600,935028889&fm=27&gp=0.jpg",
name:"旺财",
sonName:"今晚去吃饭吗?",
time:"19:08",
infoNum:"9",
top:false,
type:0
},
{
img:"http://img1.imgtn.bdimg.com/it/u=1257196754,3171363795&fm=27&gp=0.jpg",
name:"前端学习群",
sonName:"hanber:异步与同步的问题",
time:"02:08",
infoNum:"99+",
top:false,
type:0
},
{
img:"https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1672209094,624238697&fm=27&gp=0.jpg",
name:"小学同学",
sonName:"好久不见,最近好吗?",
time:"02:08",
infoNum:"9",
top:false,
type:0
},
{
img:"https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=1312347818,1612941824&fm=200&gp=0.jpg",
name:"老妈",
sonName:"啥时候回家一趟呀?",
time:"23:08",
infoNum:"1",
top:false,
type:0
},
{
img:"http://img2.imgtn.bdimg.com/it/u=1093392508,3329264726&fm=27&gp=0.jpg",
name:"AD动漫群",
sonName:"ghost:《你的名字》求资源",
time:"02:08",
infoNum:"99+",
top:false,
type:0
}
]
}
},
components: {
card
},
methods: {
// 滑动开始
touchStart(e){
// 获取移动距离,可以通过打印出e,然后分析e的值得出
this.startX = e.mp.changedTouches[0].clientX;
},
// 滑动结束
touchEnd(e,index){
// 获取移动距离
this.endX = e.mp.changedTouches[0].clientX;
if(this.startX-this.endX > 10){
for(let i=0;i<this.commitInfo.length;i++){
this.commitInfo[i].type = 0
}
this.commitInfo[index].type = 1
}
else if(this.startX-this.endX < -10){
for(let i=0;i<this.commitInfo.length;i++){
this.commitInfo[i].type = 0
}
}
},
// 点击回复原状
recover(index){
this.commitInfo[index].type = 0
},
getUserInfo () {
// 调用登录接口
wx.login({
success: () => {
wx.getUserInfo({
success: (res) => {
this.userInfo = res.userInfo
}
})
}
})
},
// 置顶
top(index){
this.commitInfo[index].top = !this.commitInfo[index].top;
this. recover(index);
},
// 删除
delect(index){
this.commitInfo.splice(index,1);
}
},
created () {
// 调用应用实例的方法获取全局数据
this.getUserInfo()
}
}
</script>
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