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ajax+php實現無限下拉重新整理的功能

效果展示:
在這裡插入圖片描述

<!DOCTYPE html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no"/>
    <script src="http://mydemo.wangchuangcode.cn/angular_reload/jquery-2.2.4.min.js">
</script> <script type="text/javascript" src="http://mydemo.wangchuangcode.cn/angular_reload/iscroll.js"></script> </head> <body> <div id="wrapper"> <div id="scroller"> <ul> <li>往上拉我哦</li> </ul> <div
class="pull-loading">
上拉載入 </div> </div> </div> <script type="text/javascript"> var myscroll = new iScroll("wrapper", { onScrollMove: function () { //拉動時 //上拉載入 if (this.y < this.maxScrollY) { $(".pull-loading"
).html("釋放載入"); $(".pull-loading").addClass("loading"); } else { $(".pull-loading").html("上拉載入"); $(".pull-loading").removeClass("loading"); } }, onScrollEnd: function () { //拉動結束時 //上拉載入 if ($(".pull-loading").hasClass('loading')) { $(".pull-loading").html("載入中..."); pullOnLoad(); } } }); //上拉載入函式,ajax var num = 0; var page = 4; //每次載入4條 function pullOnLoad() { setTimeout(function () { $.ajax({ url: "{:url('index/ceshi')}", type: "get", dataType: 'json', success: function (data) { var data_length = data.length;//資料的總長度 var remainder = data_length % page;//餘數 if ( data_length >= (num+page)){ for (var j = num; j < num + page; j++){ var text = data[j].nickname; $("#scroller ul").append("<li>"+ text +"</li>"); } num+=page; }else if (remainder != 0 && data_length-num == remainder){ for (var j = num; j < num + remainder; j++){ var text = data[j].nickname; $("#scroller ul").append("<li>"+ text +"</li>"); } num+=page; }else{ $('.pull-loading').html("沒有了喲"); } myscroll.refresh(); }, error: function () { console.log("出錯了"); } }); myscroll.refresh(); }, 500); }
</script> </body> </html>
<?php
namespace app\index\controller;
use think\Controller;
use think\Request;
use think\Db;
use think\db\Query;
class Index extends Controller
{
    public function index()
    {
        return $this->fetch('index');
    }

    public function ceshi()
    {
        $data=Db::name('user')
            ->select();
        echo json_encode($data);
    }
}