言归正传。相信大家最初看到google首页出现的图标动画的时候,特别是发现原来那么传神的效果居然不是flash的时候,肯定感觉很惊奇吧?起码当初我就是这样的感觉。是不是认为要用js实现那样的动化简直有点不可思意呢?
先给大家看看实现的效果:
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老调重谈几句,我的BlueEffects效果库在这个博客其实已经发布了很久了,也许是我阐述不够详细的缘故吧,大家了解的还是不多。其实 BlueEffects真的是一个虽然轻量级,但是功能很强大的效果库。弄明白了的话,通过灵活组合或者拆分改写可以实现很多让人眼晕的强大效果。博客里 面也有好几篇文章说到精灵部落,精灵部落确实有很多很不错的效果,也相信确实亲身加入体验了一把的朋友都会感觉还不错。虽然现在还没有决定要全部开源给大家,但我确实很乐意跟大家分享其中的心得体会,愿和感兴趣的朋友交流,知无不言。还有就是,前段时间精灵部落刚上线测试的时候,确实由于太匆忙没有做好工作,不少朋友直接就没办法访问。通过近段时间的改进,基本上已经可以保证大家进去体验一下了。不过问题肯定还有的,大家多多交流!之前没有了解过精灵部落的朋友,可以先看看我博客的其他文章,相信你也会有兴趣体验一下哦!
下面我就来讲讲,怎么用我的 BlueEffects效果库实现这个传神的效果!其实,整个实现过程用到的效果,只是BlueEffects其中的一个ImageShow的改写。
首先,介绍以下,整个动画,仅仅基于一张图片(这是从goole首页下载下来的原版图片哦):

每一个图标动画都是基于让这张图片显示不同位置的图象来实现的。而位置的设置,是通过css样式背景图片的位置来设置
相信看到这个图片都能想象到每个图标动画都是由5侦构成的,我这里,是这样定义这5侦的:
var Images1=

[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -220px"},//这里通过Position的设置来灵活实现每一侦动画要显示的图片的某个位置

{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -220px"},

{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -220px"},

{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -220px"},

{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -220px"},

{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -220px"},

{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -220px"}
];
每侦是一个json对象,描述了使用的图片路径,背景平铺方式和背景位置等。实际动画的时候,则是按照一定的规则,比如每20ms解析显示其中一侦的信息,从而实现动画效果。下面是具体动画效果实现的代码:这个代码基本上在我原先发布的blueeffects下载中包含有详细的解释说明,这里不再重复。
下面调用这个可以通用的动画效果,实现本特定动画效果:
1
<script type="text/javascript">
2
3
var Images2=
4
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px 0px"},
5
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px 0px"},
6
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px 0px"},
7
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px 0px"},
8
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px 0px"},
9
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px 2px"},
10
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px 0px"}
11
];
12
13
var Images3=
14
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -35px"},
15
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -35px"},
16
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -35px"},
17
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -35px"},
18
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -35px"},
19
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -35px"},
20
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -35px"}
21
];
22
23
var Images4=
24
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -72px"},
25
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -72px"},
26
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -72px"},
27
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -72px"},
28
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -72px"},
29
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -72px"},
30
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -72px"}
31
];
32
33
var Images5=
34
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -109px"},
35
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -109px"},
36
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -109px"},
37
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -109px"},
38
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -109px"},
39
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -109px"},
40
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -109px"}
41
];
42
43
var Images6=
44
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -145px"},
45
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -145px"},
46
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -145px"},
47
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -145px"},
48
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -145px"},
49
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -145px"},
50
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -145px"}
51
];
52
53
var Images7=
54
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -183px"},
55
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -183px"},
56
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -183px"},
57
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -183px"},
58
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -183px"},
59
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -183px"},
60
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -183px"}
61
];
62
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var Images1=
64
[
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-5px -220px"},
65
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-55px -220px"},
66
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-105px -220px"},
67
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-155px -220px"},
68
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -220px"},
69
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -220px"},
70
{Image:"../Images/toolbar.png",Repeat:"no-repeat",Position:"-205px -220px"}
71
];
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//前面7个数组,分别定义7个图标动画的侦信息。
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var Show1=null;
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var Show2=null;
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var Show3=null;
77
var Show4=null;
78
var Show5=null;
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var Show6=null;
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var Show7=null;
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function MouseOver(Num)
83
{
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var Obj=null;
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if(Num==1)
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Obj=Show1;
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else if(Num==2)
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Obj=Show2;
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else if(Num==3)
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Obj=Show3;
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else if(Num==4)
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Obj=Show4;
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else if(Num==5)
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Obj=Show5;
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else if(Num==6)
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Obj=Show6;
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else if(Num==7)
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Obj=Show7;
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Obj.DeleteTimeOut();//首先要停止动画
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Obj.ASC=true; //设定按正常顺序显示侦
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Obj.ChangeImage(); // 开始动画
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}
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function MouseOut(Num)
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{
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var Obj=null;
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if(Num==1)
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Obj=Show1;
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else if(Num==2)
111
Obj=Show2;
112
else if(Num==3)
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Obj=Show3;
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else if(Num==4)
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Obj=Show4;
116
else if(Num==5)
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Obj=Show5;
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else if(Num==6)
119
Obj=Show6;
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else if(Num==7)
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Obj=Show7;
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Obj.DeleteTimeOut();
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Obj.ASC=false;//倒序显示侦
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Obj.ChangeImage();
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// alert(Show.NowIndex);
126
}
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function Loaded()
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{
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Show1=new ImageShow(
{Obj:document.getElementById("ImgArea1"),TimeSpace:50,Images:Images1,BackGround:true});
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Show2=new ImageShow(
{Obj:document.getElementById("ImgArea2"),TimeSpace:50,Images:Images2,BackGround:true});
132
Show3=new ImageShow(
{Obj:document.getElementById("ImgArea3"),TimeSpace:50,Images:Images3,BackGround:true});
133
Show4=new ImageShow(
{Obj:document.getElementById("ImgArea4"),TimeSpace:50,Images:Images4,BackGround:true});
134
Show5=new ImageShow(
{Obj:document.getElementById("ImgArea5"),TimeSpace:50,Images:Images5,BackGround:true});
135
Show6=new ImageShow(
{Obj:document.getElementById("ImgArea6"),TimeSpace:50,Images:Images6,BackGround:true});
136
Show7=new ImageShow(
{Obj:document.getElementById("ImgArea7"),TimeSpace:50,Images:Images7,BackGround:true});
//分别为每个图标动画 生成一个动画对象
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MouseOver(1); MouseOver(2);MouseOver(3);MouseOver(4);MouseOver(5);MouseOver(6);MouseOver(7);//页面载入后执行第一次动画,显示图标
138
}
139
Loaded();
欢迎大家一起交流,不是很善表述,但有对细节的疑问的话提出来很乐意回答,谢谢!
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