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小編給大家分享一下微信小程序如何實(shí)現(xiàn)頁(yè)面滑動(dòng)屏幕加載數(shù)據(jù)效果,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
我們先看看效果圖:
創(chuàng)建目錄
首先我們現(xiàn)在項(xiàng)目中創(chuàng)建資訊目錄,以下是我自己創(chuàng)建的目錄,大家可以根據(jù)自己的需求創(chuàng)建。如圖所示:
創(chuàng)建lists.js文件
以下是lists.js代碼
var app = getApp() Page({ data: { newsList: [], lastid: 0, toastHidden: true, confirmHidden: true, isfrist: 1, loadHidden: true, moreHidden: 'none', msg: '沒有更多文章了' }, loadData: function (lastid) { //顯示出加載中的提示 this.setData({ loadHidden: false }) var limit = 10 var that = this wx.request({ url: 'http://127.0.0.1:9090/hpm_bill_web/news/getnewslist', //數(shù)據(jù)接口 data: { lastid: lastid, limit: limit }, header: { 'Content-Type': 'application/json' }, success: function (res) { if (!res.data) { that.setData({ toastHidden: false }) that.setData({ moreHidden: 'none' }) return false } var len = res.data.length var oldLastid = lastid if(len != 0) { that.setData({ lastid: res.data[len - 1].id }) } else { that.setData({ toastHidden: false}) } var dataArr = that.data.newsList var newData = dataArr.concat(res.data); if (oldLastid == 0) { wx.setStorageSync('CmsList', newData) } that.setData({ newsList: newData }) that.setData({ moreHidden: '' }) }, fail: function (res) { if (lastid == 0) { var newData = wx.getStorageSync('CmsList') if(newData) { that.setData({ newsList: newData }) that.setData({ moreHidden: '' }) var len = newData.length if (len != 0) { that.setData({ lastid: newData[len - 1].id }) } else { that.setData({ toastHidden: false }) } console.log('data from cache'); } } else { that.setData({ toastHidden: false, moreHidden: 'none', msg: '當(dāng)前網(wǎng)格異常,請(qǐng)稍后再試' }) } }, complete: function () { //顯示出加載中的提示 that.setData({ loadHidden: true }) } }) }, loadMore: function (event) { var id = event.currentTarget.dataset.lastid var isfrist = event.currentTarget.dataset.isfrist var that = this wx.getNetworkType({ success: function (res) { var networkType = res.networkType // 返回網(wǎng)絡(luò)類型2g,3g,4g,wifi if (networkType != 'wifi' && isfrist == '1') { that.setData({ confirmHidden: false }) } } }) this.setData({ isfrist: 0 }) this.loadData(id); }, onLoad: function () { var that = this this.loadData(0); }, toastChange: function () { this.setData({ toastHidden: true }) }, modalChange: function () { this.setData({ confirmHidden: true }) } })
創(chuàng)建頁(yè)面文件(lists.wxml)
<view class="warp"> <!-- 文章列表模板 begin --> <template name="items"> <navigator url="../../pages/detail/detail?id={{id}}" hover-class="navigator-hover"> <view class="imgs"> <image src="{{image}}" class="in-img" background-size="cover" model="scaleToFill"></image> </view> <view class="infos"> <view class="title">{{name}}</view> <view class="dates">{{createtime}}</view> </view> </navigator> </template> <!-- 文章列表模板 end --> <!-- 循環(huán)輸出列表 begin --> <view wx:for="{{newsList}}" class="list"> <template is="items" data="{{...item}}" /> </view> <!-- 循環(huán)輸出列表 end --> <loading hidden="{{loadHidden}}" bindchange="loadChange"> 數(shù)據(jù)加載中... </loading> <view bindtap="loadMore" data-lastid="{{lastid}}" data-isfrist="{{isfrist}}" class="loadMore" >加載更多</view> <toast hidden="{{toastHidden}}" bindchange="toastChange" duration="3000">{{msg}}</toast> <modal title="溫馨提示" no-cancel confirm-text="明確" cancel-text="關(guān)閉" hidden="{{confirmHidden}}" bindconfirm="modalChange" bindcancel="modalChange">你當(dāng)前不在在WIFI網(wǎng)格下下,會(huì)產(chǎn)生流量費(fèi)用</modal> </view>
創(chuàng)建頁(yè)面樣式(lists.wxss)
.warp {height:100%;display:flex;flex-direction: column;padding:20rpx;} navigator {overflow: hidden;} .list {margin-bottom:20rpx;height:200rpx;position:relative;} .imgs{float:left;} .imgs image {display:block;width:200rpx;height:200rpx;} .infos {float:left;width:480rpx;height:200rpx;padding:20rpx 0 0 20rpx} .title {font-size:20px; font-family: Microsoft Yahei} .dates {font-size:16px;color: #aaa; position: absolute;bottom:0;} .loadMore {text-align: center; margin:30px;color:#aaa;font-size:16px;}
通過以上代碼就能實(shí)現(xiàn)在屏幕上滑動(dòng)顯示數(shù)據(jù)的功能。
以上是“微信小程序如何實(shí)現(xiàn)頁(yè)面滑動(dòng)屏幕加載數(shù)據(jù)效果”這篇文章的所有內(nèi)容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內(nèi)容對(duì)大家有所幫助,如果還想學(xué)習(xí)更多知識(shí),歡迎關(guān)注億速云行業(yè)資訊頻道!
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