dropload.js插件下拉刷新和上拉加载使用详解

**基本代码结构**
//#content为某个div的id 
var dropload = $('#content').dropload({ 
//scrollArea很关键，要不然加载更多不起作用 
scrollArea : window, 
domUp : { 
 domClass : 'dropload-up', 
 domRefresh : '<div class="dropload-refresh">↓下拉刷新</div>', 
 domUpdate : '<div class="dropload-update">↑释放更新</div>', 
 domLoad : '<div class="dropload-load"><span class="loading"></span>加载中...</div>' 
}, 
domDown : { 
 domClass : 'dropload-down', 
 domRefresh : '<div class="dropload-refresh">↑上拉加载更多</div>', 
 domLoad : '<div class="dropload-load"><span class="loading"></span>加载中...</div>', 
 domNoData : '<div class="dropload-noData">暂无数据</div>' 
 }, 
loadUpFn : function(me){ 
 //下拉刷新需要调用的函数 
 alert("下拉刷新需要调用的函数"); 
 //重置下拉刷新 
 me.resetload(); 
}, 
loadDownFn : function(me){ 
 //上拉加载更多需要调用的函数 
 alert("上拉加载更多需要调用的函数"); 
 //定时器函数,为了看出上拉加载更多效果 
  setTimeout(function(){ 
  // 每次数据加载完，必须重置 
   me.resetload(); 
  },1000); 
  } 
}); 

<script>
$(function(){
 // 页数
 var page = 0;
 // 每页展示5个
 var size = 5;

 // dropload调用
 $('.content').dropload({
 scrollArea : window,
 loadDownFn : function(me){
  page++;
  // 拼接HTML
  var result = '';
  $.ajax({
  type: 'GET',
  url: 'http://ons.me/tools/dropload/json.php"item opacity" href="'+data[i].link+'">'
      +'<img src="/UploadFiles/2021-04-02/'+data[i].pic+'">

示例二、加载顶部、底部


<script>
$(function(){
 // 页数
 var page = 0;
 // 每页展示10个
 var size = 10;

 // dropload
 $('.content').dropload({
 scrollArea : window,
 domUp : {
  domClass : 'dropload-up',
  domRefresh : '<div class="dropload-refresh">↓下拉刷新-自定义内容</div>',
  domUpdate : '<div class="dropload-update">↑释放更新-自定义内容</div>',
  domLoad : '<div class="dropload-load"><span class="loading"></span>加载中-自定义内容...</div>'
 },
 domDown : {
  domClass : 'dropload-down',
  domRefresh : '<div class="dropload-refresh">↑上拉加载更多-自定义内容</div>',
  domLoad : '<div class="dropload-load"><span class="loading"></span>加载中-自定义内容...</div>',
  domNoData : '<div class="dropload-noData">暂无数据-自定义内容</div>'
 },
 loadUpFn : function(me){
  $.ajax({
  type: 'GET',
  url: 'json/update.json',
  dataType: 'json',
  success: function(data){
   var result = '';
   for(var i = 0; i < data.lists.length; i++){
   result += '<a class="item opacity" href="'+data.lists[i].link+'">'
     +'<img src="/UploadFiles/2021-04-02/'+data.lists[i].pic+'">

示例三、多次加载


$(function(){
 //利用此写法，可以限制多次加载的个数。
 var timer;

 $('.header .ipt').on('input',function(){
 var _length = $(this).val();
 // 如果输入值不是数字或者是空，就跳出
 if(isNaN(_length) || _length === ''){
  return false;
 }
 clearTimeout(timer);
 timer = setTimeout(function(){//也可不用定时器
  // 清空内容
  $('.lists').html('');
  $('.dropload-down').remove();

  var counter = 0;
  // 每页展示4个
  var num = 4;
  var pageStart = 0,pageEnd = 0;
  // dropload
  $('.content').dropload({
  scrollArea : window,
  loadDownFn : function(me){
   $.ajax({
   type: 'GET',
   url: 'json/more.json',
   dataType: 'json',
   success: function(data){
    var result = '';
    counter++;
    pageEnd = num * counter;
    pageStart = pageEnd - num;

    for(var i = pageStart; i < pageEnd; i++){
    result += '<a class="item opacity" href="'+data.lists[i].link+'">'
      +'<img src="/UploadFiles/2021-04-02/'+data.lists[i].pic+'">

示例四、固定布局，加载顶部、底部


$(function(){
 // 按钮操作
 $('.header .btn').on('click',function(){
 var $this = $(this);
 if(!!$this.hasClass('lock')){
  $this.attr('class','btn unlock');
  $this.text('解锁');
  // 锁定
  dropload.lock();
  $('.dropload-down').hide();
 }else{
  $this.attr('class','btn lock');
  $this.text('锁定');
  // 解锁
  dropload.unlock();
  $('.dropload-down').show();
 }
 });

 // dropload
 var dropload = $('.inner').dropload({
 domUp : {
  domClass : 'dropload-up',
  domRefresh : '<div class="dropload-refresh">↓下拉刷新</div>',
  domUpdate : '<div class="dropload-update">↑释放更新</div>',
  domLoad : '<div class="dropload-load"><span class="loading"></span>加载中...</div>'
 },
 domDown : {
  domClass : 'dropload-down',
  domRefresh : '<div class="dropload-refresh">↑上拉加载更多</div>',
  domLoad : '<div class="dropload-load"><span class="loading"></span>加载中...</div>',
  domNoData : '<div class="dropload-noData">暂无数据</div>'
 },
 loadUpFn : function(me){
  $.ajax({
  type: 'GET',
  url: 'json/update.json',
  dataType: 'json',
  success: function(data){
   var result = '';
   for(var i = 0; i < data.lists.length; i++){
   result += '<a class="item opacity" href="'+data.lists[i].link+'" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >'
     +'<img src="/UploadFiles/2021-04-02/'+data.lists[i].pic+'">

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