本文介绍了小程序头部吸顶的实现代码示例，分享给大家，也给自己留个笔记
demo 地址: https://github.com/iotjin/Jh_weapp
效果图：
吸顶主要是 position: sticky;
.header {
background: rgb(230, 230, 230);
height: 25px;
line-height: 25px;
padding-left: 30rpx;
font-size: 13px;
align-items: center;
position: sticky;
top: 0;
}
js 代码：
Page({
data: {
dataArr: [{
"AB_MonthDay": "30/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭1",
"AB_Money": "11",
"AB_Remark": "备注",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
},{
"AB_LeiBie": "吃饭1",
"AB_Money": "22",
"AB_Remark": "备注2",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
},{
"AB_LeiBie": "红包1",
"AB_Money": "33",
"AB_Remark": "备注33",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "收入",
},
]
},
{
"AB_MonthDay": "29/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭2",
"AB_Money": "22",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "28/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭3",
"AB_Money": "33",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "27/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "26/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "25/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "24/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "23/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "22/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "21/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "20/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
{
"AB_MonthDay": "19/06",
"AB_ZhiChu": "1111",
"AB_ShouRu": "2222",
"AB_Bill": [{
"AB_LeiBie": "吃饭4",
"AB_Money": "44",
"AB_Remark": "",
"AB_Date": "2011-11-11 15:38:16",
"AB_FenLei": "支出",
}]
},
]
},
onShow: function () {
},
onPageScroll: function (res) {
console.log(res.scrollTop);
}
})
wxml 代码：
<view class="main-bg">
<view wx:for="{{dataArr}}" wx:key="index" class="section">
<view class="header"> {{item.AB_MonthDay}}</view>
<view wx:for="{{item.AB_Bill}}" wx:key="index" class="cell">
<view class="row1">
<view wx:if="{{item.AB_Remark}}" class="leibie">{{item.AB_LeiBie}} · {{item.AB_Remark}}</view>
<view wx:else="{{!item.AB_Remark}}" class="leibie">{{item.AB_LeiBie}}</view>
<view class='{{item.AB_FenLei=="收入""money2":"money"}}'>{{item.AB_Money}}</view>
</view>
</view>
</view>
</view>
wxss 代码：
.header {
background: rgb(230, 230, 230);
height: 25px;
line-height: 25px;
padding-left: 30rpx;
font-size: 13px;
align-items: center;
position: sticky;
top: 0;
}
.cell {
background: white;
height: 44px;
align-items: center;
line-height: 44px;
border-bottom: 1px solid rgb(230, 230, 230);
}
.row1 {
margin-left: 30rpx;
display: flex;
justify-content: space-between;
}
.leibie {
width: 70%;
font-size: 30rpx;
color: black;
text-overflow: ellipsis;
white-space: nowrap;
overflow: hidden;
}
.money {
font-size: 32rpx;
color: black;
font-weight: bold;
margin-right: 30rpx;
}
.money2 {
font-size: 32rpx;
color: #38BC9D;
font-weight: bold;
margin-right: 30rpx;
}