js仿新浪微博消息发布功能

2019-11-19 17:31:25

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本文实例为大家分享了js仿新浪微博消息发布的具体代码，供大家参考，具体内容如下

<!DOCTYPE html><html><head><meta charset="UTF-8"><title>仿新浪微博消息发布功能</title><style>*{margin: 0; padding: 0;}#div1{width: 400px; height: 400px; border: 1px solid; margin:10px auto; position: relative;overflow: hidden;}#ul1 li{border-bottom: 1px #999 dashed; padding: 4px; list-style: none;filter: alpha(opacity:0);opacity: 0;}</style><script src="js/chuan.js"></script></head><body>  <textarea rows="5" cols="30" id="txt1"value=""></textarea>  <input type="button" id="btn1" value="发布" />    <div id="div1">    <ul id="ul1"></ul>    </div><script>var oUl=document.getElementById('ul1');var oTxt1=document.getElementById('txt1');var oBtn=document.getElementById('btn1');oBtn.onclick=function(){var oLi=document.createElement('li');        oLi.innerHTML=oTxt1.value;        oTxt1.value='';        if(oUl.children.length>0)        {        oUl.insertBefore(oLi,oUl.children[0]);        }        else        {        oUl.appendChild(oLi);        }        var iHeight=oLi.offsetHeight;        oLi.style.height=0;        move(oLi,{height:iHeight},function()        {        move(oLi,{opacity:100});        });}</script></body></html>

chuan,js为之前写的完美运动框架：

function getstyle(obj,name)  {if(obj.currentStyle){return obj.currentStyle;}else{return getComputedStyle(obj,false)[name];}  }      function move(obj,json,fnEnd){clearInterval(obj.timer);obj.timer=setInterval(function(){ var bBox=true;//假设所有值都已经到了 for(var strr in json) { if(strr=='opacity') {  var cur=Math.round(parseFloat(getstyle(obj,strr))*100); } else {  var cur=parseInt(getstyle(obj,strr)); } var speed=(json[strr]-cur)/10; speed=speed>0?Math.ceil(speed):Math.floor(speed);  if(cur!=json[strr]) bBox=false; if(strr=='opacity')            {            obj.style.filter='alpha(opacity:'+(cur+speed+')');            obj.style.opacity=(cur+speed)/100;            } else { obj.style[strr]=cur+speed+'px'; } } if(bBox) { clearInterval(obj.timer); if(fnEnd)fnEnd(); }},30);};

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武林网。

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