原生JS实现酷炫分页效果
本文实例为大家分享一个如下效果的JS分页特效,是不是很酷炫。
以下是代码实现:
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>原生JS实现酷炫分页</title> <style> * { margin: 0; padding: 0; } li { list-style: none; } #ul1 { width: 600px; height: 250px; } #ul1 li { width: 100px; height: 100px; background: red; float: left; overflow: hidden; margin: 10px; } a { margin: 5px; } </style> <!-- 引入运动函数 --> <script type="text/javascript" src="js/move.js"></script> <script> window.onload = function () { var json = { title: [ '效果1', '效果2', '效果3', '效果4', '效果5', '效果6', '效果7', '效果8', '效果9', '效果10', '效果11', '效果12', '效果13', '效果14', '效果15', '效果16', '效果17', '效果18', '效果19', '效果20', '效果21', '效果22', '效果23', '效果24', '效果25', '效果26', '效果27', '效果28', '效果29', '效果30', '效果31', '效果32', '效果33', '效果34' ] }; //建立数组,存储布局坐标 var arr = []; //从最后一个li开始运动,下标为9 var iNow = 9; page({ id: 'div1', nowNum: 1, //计算总页数,除以10并向上取整 allNum: Math.ceil(json.title.length / 10), callBack: function (now, all) { //如果当前页乘以10小于json.title.length,加载10条 //如果当前页乘以10大于json.title.length, 加载本例中剩于的4条 var num = now * 10 < json.title.length ? 10 : json.title.length - (now - 1) * 10; //获取ul var oUl = document.getElementById('ul1'); //获取li var aLi = oUl.getElementsByTagName('li'); //如果不前ul里面的的内容为空 if (oUl.innerHTML == '') { //循环num次 for (var i = 0; i < num; i++) { //创建li var oLi = document.createElement('li'); //设置li的内容,如果now为0,那么[(now-1)*10 + i]从第1个分配内容 //设置li的内容,如果now为1,那么[(now-1)*10 + i]从第11个分配内容 oLi.innerHTML = json.title[(now - 1) * 10 + i]; //将li添加到ul中 oUl.appendChild(oLi); } //循环遍历 for (var i = 0; i < aLi.length; i++) { //向arr中压入每个li的left和top值 arr.push([aLi[i].offsetLeft, aLi[i].offsetTop]); } //循环遍历 for (var i = 0; i < aLi.length; i++) { //修改每个li的定位为绝对定位 aLi[i].style.position = 'absolute'; //重新分配left的值 aLi[i].style.left = arr[i][0] + 'px'; //重新分配top的值 aLi[i].style.top = arr[i][1] + 'px'; //把影响定位的margin值归0 aLi[i].style.margin = 0; } } else { //设置定时器,依次执行每个效果的动画 var timer = setInterval(function () { //执行move.js中的strartMove函数,从下标为iNow的li开始,修改left/top/opacity值 startMove(aLi[iNow], { left: 200, top: 250, opacity: 0 }); //当运动的li为最后一个时 if (iNow == 0) { //清除定时器 clearInterval(timer); //iNow下标值为当前加载数量减1,本例中加载10条为9,加载4条为3 iNow = num - 1; //点击标签页时,更换显示内容 for (var i = 0; i < num; i++) { aLi[i].innerHTML = json.title[(now - 1) * 10 + i]; } //设置弹出的定时器 var timer2 = setInterval(function () { //执行move.js中的strartMove函数,从下标为iNow的li开始 //将每个li的属性值还原到第一次运动前存储的值 startMove(aLi[iNow], { left: arr[iNow][0], top: arr[iNow][1], opacity: 100 }); //当运动的li为最后一个时 if (iNow == 0) { //清除定时器 clearInterval(timer2); //iNow下标值为当前加载数量减1,本例中加载10条为9,加载4条为3 iNow = num - 1; } else { //iNow递减,依次执行 iNow--; } }, 100); } else { //iNow递减,依次执行 iNow--; } }, 100); } } }); }; function page(opt) { if (!opt.id) { return false }; var obj = document.getElementById(opt.id); var nowNum = opt.nowNum || 1; var allNum = opt.allNum || 5; var callBack = opt.callBack || function () { }; if (nowNum >= 4 && allNum >= 6) { var oA = document.createElement('a'); oA.href = '#1'; oA.innerHTML = '首页'; obj.appendChild(oA); } if (nowNum >= 2) { var oA = document.createElement('a'); oA.href = '#' + (nowNum - 1); oA.innerHTML = '上一页'; obj.appendChild(oA); } if (allNum <= 5) { for (var i = 1; i <= allNum; i++) { var oA = document.createElement('a'); oA.href = '#' + i; if (nowNum == i) { oA.innerHTML = i; } else { oA.innerHTML = '[' + i + ']'; } obj.appendChild(oA); } } else { for (var i = 1; i <= 5; i++) { var oA = document.createElement('a'); if (nowNum == 1 || nowNum == 2) { oA.href = '#' + i; if (nowNum == i) { oA.innerHTML = i; } else { oA.innerHTML = '[' + i + ']'; } } else if ((allNum - nowNum) == 0 || (allNum - nowNum) == 1) { oA.href = '#' + (allNum - 5 + i); if ((allNum - nowNum) == 0 && i == 5) { oA.innerHTML = (allNum - 5 + i); } else if ((allNum - nowNum) == 1 && i == 4) { oA.innerHTML = (allNum - 5 + i); } else { oA.innerHTML = '[' + (allNum - 5 + i) + ']'; } } else { oA.href = '#' + (nowNum - 3 + i); if (i == 3) { oA.innerHTML = (nowNum - 3 + i); } else { oA.innerHTML = '[' + (nowNum - 3 + i) + ']'; } } obj.appendChild(oA); } } if ((allNum - nowNum) >= 1) { var oA = document.createElement('a'); oA.href = '#' + (nowNum + 1); oA.innerHTML = '下一页'; obj.appendChild(oA); } if ((allNum - nowNum) >= 3 && allNum >= 6) { var oA = document.createElement('a'); oA.href = '#' + allNum; oA.innerHTML = '尾页'; obj.appendChild(oA); } callBack(nowNum, allNum); var aA = obj.getElementsByTagName('a'); for (var i = 0; i < aA.length; i++) { aA[i].onclick = function () { var nowNum = parseInt(this.getAttribute('href').substring(1)); obj.innerHTML = ''; page({ id: opt.id, nowNum: nowNum, allNum: allNum, callBack: callBack }); return false; }; } } </script> </head> <body> <ul id="ul1"></ul> <div id="div1"></div> </body> </html>
引入的运动函数代码:
function startMove(obj, json, endFn) { clearInterval(obj.timer); obj.timer = setInterval(function () { var bBtn = true; for (var attr in json) { var iCur = 0; if (attr == 'opacity') { if (Math.round(parseFloat(getStyle(obj, attr)) * 100) == 0) { iCur = Math.round(parseFloat(getStyle(obj, attr)) * 100); } else { iCur = Math.round(parseFloat(getStyle(obj, attr)) * 100) || 100; } } else { iCur = parseInt(getStyle(obj, attr)) || 0; } var iSpeed = (json[attr] - iCur) / 3; iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed); if (iCur != json[attr]) { bBtn = false; } if (attr == 'opacity') { obj.style.filter = 'alpha(opacity=' + (iCur + iSpeed) + ')'; obj.style.opacity = (iCur + iSpeed) / 100; } else { obj.style[attr] = iCur + iSpeed + 'px'; } } if (bBtn) { clearInterval(obj.timer); if (endFn) { endFn.call(obj); } } }, 30); } function getStyle(obj, attr) { if (obj.currentStyle) { return obj.currentStyle[attr]; } else { return getComputedStyle(obj, false)[attr]; } }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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