jQuery模拟原生态App上拉刷新下拉加载更多页面及

<div id="wrapper">
 <ul>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
  <li>row </li>
 </ul>
 </div>
 <script>
 for (var i = ; i < document.querySelectorAll("#wrapper ul li").length; i++) {
  document.querySelectorAll("#wrapper ul li")[i].colorfulBg();
 }
 refresher.init({
  id: "wrapper",//<------------------------------------------------------------------------------------┐
  pullDownAction: Refresh,
  pullUpAction: Load
 });
 var generatedCount = ;
 function Refresh() {
  setTimeout(function () { // <-- Simulate work congestion, remove setTimeout from production!
  var el, li, i;
  el = document.querySelector("#wrapper ul");
  el.innerHTML = '';
  for (i = ; i < ; i++) {
   li = document.createElement('li');
   li.appendChild(document.createTextNode('async row ' + (++generatedCount)));
   el.insertBefore(li, el.childNodes[]);
  }
  wrapper.refresh();/remember to refresh after action pleted！ ---yourId.refresh(); ----| /
  for (var i = ; i < document.querySelectorAll("#wrapper ul li").length; i++) {
   document.querySelectorAll("#wrapper ul li")[i].colorfulBg();
  }
  }, );
 }
 function Load() {
  setTimeout(function () {// <-- Simulate work congestion, remove setTimeout from production!
  var el, li, i;
  el = document.querySelector("#wrapper ul");
  for (i = ; i < ; i++) {
   li = document.createElement('li');
   li.appendChild(document.createTextNode('async row ' + (++generatedCount)));
   el.appendChild(li, el.childNodes[]);
  }
  wrapper.refresh();/remember to refresh after action pleted！！！ ---id.refresh(); --- /
  for (var i = ; i < document.querySelectorAll("#wrapper ul li").length; i++) {
   document.querySelectorAll("#wrapper ul li")[i].colorfulBg();
  }
  }, );
 }
 </script>

// 下拉刷新的原理 
- (void)scrollViewWillBeginDecelerating:(UIScrollView )scrollView 
{ 
 if (scrollView.contentOffset.y < - 100) { 
  
 [UIView animateWithDuration:1.0 animations:^{ 
  
  // frame发生偏移,距离顶部150的距离(可自行设定) 
  self.tableView.contentInset = UIEdgeInsetsMake(150.0f, 0.0f, 0.0f, 0.0f); 
 } pletion:^(BOOL finished) { 
  
  / 
   发起网络请求,请求刷新数据 
  / 
 
 }]; 
 } 
} 

// 上拉加载的原理 
- (void)scrollViewDidEndDragging:(UIScrollView )scrollView willDecelerate:(BOOL)decelerate 
{ 
 NSLog(@"%f",scrollView.contentOffset.y); 
 NSLog(@"%f",scrollView.frame.size.height); 
 NSLog(@"%f",scrollView.contentSize.height); 
 / 
  关键--> 
  scrollView一开始并不存在偏移量,会设定contentSize的大小,所以contentSize.height永远都会比contentOffset.y高一个手机屏幕的 
  高度;上拉加载的效果就是每次滑动到底部时,再往上拉的时候请求更多,那个时候产生的偏移量,就能让contentOffset.y + 手机屏幕尺寸高大于这 
  个滚动视图的contentSize.height 
 / 
 if (scrollView.contentOffset.y + scrollView.frame.size.height >= scrollView.contentSize.height) { 
 NSLog(@"%d %s",__LINE__,__FUNCTION__); 
 [UIView mitAnimations]; 
 [UIView animateWithDuration:1.0 animations:^{ 
  // frame发生的偏移量,距离底部往上提高60(可自行设定) 
  self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 60, 0); 
 } pletion:^(BOOL finished) { 
  / 
   发起网络请求,请求加载更多数据 
   然后在数据请求回来的时候,将contentInset改为(0,0,0,0) 
  / 
 }]; 
 } 
}