IE中的淡入/淡出文本

Question

I had a problem and whipped up a quick solution: fade-in and fade-out a series of quotations. 我遇到了一个问题，并提出了一个快速解决方案：淡入淡出一系列报价。 My solution works just as I want it in every browser except any of the IEs. 我的解决方案可以在除IE之外的所有浏览器中正常运行。 The only problem with the IEs is that the text does not fade in and fade out; IE的唯一问题是文本不会淡入和淡出。 the text simply pops into existence. 文本只是突然出现。

I believe I've run into a similar problem before when trying to dynamically change the filter:alpha(opacity=xx) of an element. 我相信在尝试动态更改元素的filter:alpha(opacity=xx)之前遇到了类似的问题。

Any help is greatly appreciated! 任何帮助是极大的赞赏！

<html>
<head>
<style>
.fadetext{
background:green;
border:1px solid red;
height:50px;
width:500px;
}

.fadetext div{
background:yellow;
}
</style>
<script type="text/javascript">
var CI_common = {
    C:function(cls,elm){
        if(!elm) elm = document;
        if(document.getElementsByClassName){
            return elm.getElementsByClassName(cls);
        }else{
            var t = [];
            var o = elm.getElementsByTagName("*");
            var r = new RegExp("(^|\\s)" + cls + "($|\\s)");
            for(var i=0;i<o.length;i++){
                if(o[i].className.match(r)) t.push(o[i]);
            }
            return t;
        }
    },

    eventAdd:function(obj,evt,func){
        if(obj.addEventListener){
            obj.addEventListener(evt,func,false);
        }else if(obj.attachEvent){
            obj["x" + evt + func] = func;
            obj[evt + func] = function(){
                obj["x" + evt + func](window.event);
            }
            obj.attachEvent("on" + evt,obj[evt + func]);
        }
    }
}

var CI_fadetext = {
    init:function(){
        var c = CI_common.C("fadetext"); // Simply a getElementsByClassName function
        for(var i=0;i<c.length;i++){
            c[i].style.overflow = "hidden";
            var kids = c[i].getElementsByTagName("div");
            for(var j=0;j<kids.length;j++){
                kids[j].style.display = "none";
                kids[j].style.filter = "alpha(opacity=0)";
                kids[j].style.opacity = "0";
                (function(obj,index,len){
                    obj.fadetexttimeout = setTimeout(function(){
                        CI_fadetext.fade(obj,true);
                        obj.fadeininterval = setInterval(function(){
                            CI_fadetext.fade(obj,true);
                        },5000*len)
                    },5000*index);
                    setTimeout(function(){
                        CI_fadetext.fade(obj,false);
                        obj.fadeoutinterval = setInterval(function(){
                            CI_fadetext.fade(obj,false);
                        },5000*len)
                    },5000*index+4400);
                })(kids[j],j,kids.length);
            }
        }
    },

    fade:function(elm,dir){
        function fade(start){
            start = (dir ? start + 10 : start - 10);
            elm.style.filter = "alpha(opacity=" + start + ")";
            elm.style.opacity = start/100;
            document.getElementById("output").innerHTML = elm.style.filter;
            if(start > 100 || start <0){
                elm.style.display = (dir ? "" : "none");
                elm.style.filter = "alpha(opacity=" + (dir ? 100 : 0) + ")";
                elm.style.opacity = (dir ? 1 : 0);
            }else elm.fadetexttimeout = setTimeout(function(){fade(start);},50);

        }
        if(dir){
            elm.style.display = "";
            fade(0);
        }else fade(100);
    }
}

CI_common.eventAdd(window,"load",CI_fadetext.init); // Just a window.onload level 2 event listener
</script>
</head>
<body>
<div id="output"></div>
<div class="fadetext">
    <div>AAAA</div>
    <div>BBBB</div>
    <div>CCCC</div>
    <div>DDDD</div>
    <div>EEEE</div>
</div>
</body>
</html>

Answer 1

The code here works for me in IE 8, Firefox, and Safari: 此处的代码适用于IE 8，Firefox和Safari：

http://www.switchonthecode.com/tutorials/javascript-tutorial-simple-fade-animation http://www.switchonthecode.com/tutorials/javascript-tutorial-simple-fade-animation

It's become so cliche but yes you should also consider using a library like jQuery which can do this in 1 line. 它变得陈词滥调，但是是的，您还应该考虑使用像jQuery这样的库，它可以在1行中完成此操作。

A jQuery example: http://viralpatel.net/blogs/2009/01/fadein-fadeout-fade-out-effect-in-html-text-div-using-jquery.html 一个jQuery示例： http : //viralpatel.net/blogs/2009/01/fadein-fadeout-fade-out-effect-in-html-text-div-using-jquery.html

Answer 2

Set the value to the filter array rather than the style element. 将值设置为过滤器数组而不是样式元素。 Then IE be able to keep up. 然后IE就能跟上。

if (elm.filters)
elm.filters[0].opacity=value

IE中的淡入/淡出文本

问题描述

2 个解决方案

解决方案1
2 2010-05-19 05:13:51

解决方案2
1 已采纳 2010-05-19 05:15:30

IE中的淡入/淡出文本

问题描述

2 个解决方案

解决方案1 2 2010-05-19 05:13:51

解决方案2 1 已采纳 2010-05-19 05:15:30

解决方案1
2 2010-05-19 05:13:51

解决方案2
1 已采纳 2010-05-19 05:15:30