Silverlight 是Microsoft推出的一项全新的跨平台与跨浏览器的客户端技术,能设计与开发出具备丰富多媒体效果的可交互WEB程序.简单的几句代码就能快速的展示出非凡的效果.大家可以尝试以下代码,感受一下Silverlight的效果:
使用说明:代码直接来自奚江华的<Silverlight 完美入门>一书,总共五个文件,Test.html / Test.xaml / Silverlight.js / Test.html.js / Test.xaml.js 可以看到,Silverlight的技术新在Test.xaml里面,其他的html和javascript技术都是我们之前已经有的,所以大家不需要那么害怕Silverlight.Test.xaml里面的代码也有限,看下图:(实际上不是三个黄色的小球,而是一个黄色小球从左上角渐变出来,图片显示的小黄球运动和变化的轨迹)
如果不用Silverlight,大家估计只能用FLASH或者图片GIF来设计了,现在有了Silverlight,几句代码就可以实现.好了,下面大家可以把代码拷贝下来,五个文件存到同一目录下,然后打开Test.html,即可看到Silverlight的效果.
代码不需要看懂,只要知道以下几点:
1)许多2D和绚目的效果,以前HTML等语言无法实现,只能借助FLASH和PHTOTOSHOP特别处理过的效果,现在Silverlight用代码就可以实现,且易于搜索引擎的收录.
2)Silverlight并不复杂,涉及到的新技术只有XAML,其他的HTML,JAVASCRITP,DOM等都是老面孔.
3)无论asp/asp.net/PHP/jsp网站都可以和Silverlight完美的结合使用,没有"门户"之见.(实验过下面的小例子大家应该就能感受到),因为Silverlight是客户端程序,不在服务器端,这点非常重要.
4)浏览Silverlight站,需要安装Silverlight客户端程序,大家可以到 http://www.microsotf.com/silverlight/install.aspx 会自动检测你的电脑是否具备浏览Silverlight站的功能,如果不可以会提示Install Now,大家安装就是了,类似于打开含有FLASH的网站需要装FLASH播放插件一样.
好啦,大家先来试试看,自己的第一个Silverlight程序!!!
Silverlight.js(包含用于下载和实例化 Silverlight 控件的代码)
if
(
!
window.Silverlight)window.Silverlight
=
{}
;Silverlight._silverlightCount
=
0
;Silverlight.ua
=
null
;Silverlight.available
=
false
;Silverlight.fwlinkRoot
=
"
http://go.microso
ft.com/fwlink/?LinkID=
"
;Silverlight.StatusText
=
"
Get Microsoft
Silverlight
"
;Silverlight.EmptyText
=
""
;Silverlight.detectUserAgent
=
function
()
{var
a=window.navigator.userAgent;Silverlight.ua={OS:"Unsupported",browser:"Unsupported"};if(a.indexOf("Windows NT")>=0)
Silverlight.ua.OS="Windows";else if(a.indexOf("PPC Mac OS X")>=0)Silverlight.ua.OS="MacPPC";else if(a.indexOf("Intel Mac OS
X")>=0)Silverlight.ua.OS="MacIntel";if(Silverlight.ua.OS!="Unsupported")if(a.indexOf("MSIE")>=0){if
(navigator.userAgent.indexOf("Win64")==-1)if(parseInt(a.split("MSIE")[1])>=6)Silverlight.ua.browser="MSIE"}else if
(a.indexOf("Firefox")>=0){var b=a.split("Firefox/")[1].split("."),c=parseInt(b[0]);if(c>=2)
Silverlight.ua.browser="Firefox";else{var d=parseInt(b[1]);if(c==1&&d>=5)Silverlight.ua.browser="Firefox"}}else if
(a.indexOf("Safari")>=0)Silverlight.ua.browser="Safari"}
;Silverlight.detectUserAgent();Silverlight.isInstalled
=
function
(d)
{var c=false,a=null;try{var b=null;if(Silverlight.ua.browser=="MSIE")b=new ActiveXObject("AgControl.AgControl");else if
(navigator.plugins["Silverlight Plug-In"]){a=document.createElement("div");document.body.appendChild(a);a.innerHTML='<embed
type="application/x-silverlight" />';b=a.childNodes[0]}if(b.IsversionSupported(d))c=true;b=null;Silverlight.available=true}
catch(e){c=false}if(a)document.body.removeChild(a);return c}
;Silverlight.createObject
=
function
(l,g,m,j,k,i,h)
{var b=
@H_404_797@{},a=j,c=k;a.source=l;b.parentElement=g;b.id=Silverlight.HtmlAttributeEncode(m);b.width=Silverlight.HtmlAttributeEncode
(a.width);b.height=Silverlight.HtmlAttributeEncode(a.height);b.ignorebrowserVer=Boolean
(a.ignorebrowserVer);b.inplaceInstallPrompt=Boolean(a.inplaceInstallPrompt);var e=a.version.split(".");b.shortVer=e[0]
+"."+e[1];b.version=a.version;a.initParams=i;a.windowless=a.iswindowless;a.maxFramerate=a.framerate;for(var d in c)if(c[d]
&&d!="onLoad"&&d!="onError"){a[d]=c[d];c[d]=null}delete a.width;delete a.height;delete a.id;delete a.onLoad;delete
a.onError;delete a.ignorebrowserVer;delete a.inplaceInstallPrompt;delete a.version;delete a.iswindowless;delete
a.framerate;if(Silverlight.isInstalled(b.version)){if(Silverlight._silverlightCount==0)if(window.addEventListener)
window.addEventListener("onunload",Silverlight.__cleanup,false);else window.attachEvent
("onunload",Silverlight.__cleanup);var
f=Silverlight._silverlightCount++;a.onLoad="__slload"+f;a.onError="__slError"+f;window[a.onLoad]=function(a){if(c.onLoad)
c.onLoad(document.getElementById(b.id),h,a)};window[a.onError]=function(a,b){if(c.onError)c.onError(a,b);else
Silverlight.default_error_handler(a,b)};slPluginHTML=Silverlight.buildHTML(b,a)}else
slPluginHTML=Silverlight.buildPromptHTML(b);if(b.parentElement)b.parentElement.innerHTML=slPluginHTML;else return
slPluginHTML}
;Silverlight.supportedUserAgent
=
function
()
{var
a=Silverlight.ua,b=a.OS=="Unsupported"||a.browser=="Unsupported"||a.OS=="Windows"&&a.browser=="Safari"||a.OS.indexOf("Mac")
>=0&&a.browser=="IE";return !b}
;Silverlight.buildHTML
=
function
(c,d)
{var a=[],e,f,h;if(Silverlight.ua.browser=="Safari")
{a.push("<embed ");e="";i=" ";g='="';f='"';h=' type="application/x-silverlight"/>'+"<iframe
style='visibility:hidden;height:0;width:0'/>"}else{a.push('<object type="application/x-silverlight"');e=">";i=' <param
name="';g='" value="';f='" />';h="</object>"}a.push(' id="'+c.id+'" width="'+c.width+'" height="'+c.height+'" '+e);for(var b
in d)if(d[b])a.push(i+Silverlight.HtmlAttributeEncode(b)+g+Silverlight.HtmlAttributeEncode(d[b])+f);a.push(h);return a.join
("")}
;Silverlight.default_error_handler
=
function
(e,b)
{var d,c=b.ErrorType;d=b.ErrorCode;var a=" Silverlight error message
";a+="ErrorCode: "+d+" ";a+="ErrorType: "+c+" ";a+="Message: "+b.ErrorMessage+" ";if(c=="ParserError")
{a+="XamlFile: "+b.xamlFile+" ";a+="Line: "+b.lineNumber+" ";a+="Position: "+b.charPosition+" "}else if
(c=="RuntimeError"){if(b.lineNumber!=0){a+="Line: "+b.lineNumber+" ";a+="Position: "+b.charPosition+" "}
a+="MethodName: "+b.methodName+" "}alert(a)}
;Silverlight.createObjectEx
=
function
(b)
{var
a=b,c=Silverlight.createObject(a.source,a.parentElement,a.id,a.properties,a.events,a.initParams,a.context);if
(a.parentElement==null)return c}
;Silverlight.buildPromptHTML
=
function
(i)
{var
a=null,f=Silverlight.fwlinkRoot,c=Silverlight.ua.OS,b="92822",d;if(i.inplaceInstallPrompt){var h;if(Silverlight.available)
{d="94376";h="94382"}else{d="92802";h="94381"}var g="93481",e="93483";if(c=="Windows"){b="92799";g="92803";e="92805"}else
if(c=="MacIntel"){b="92808";g="92804";e="92806"}else if(c=="MacPPC"){b="92807";g="92815";e="92816"}a='<table border="0"
cellpadding="0" cellspacing="0" width="205px"><tr><td><img title="Get Microsoft Silverlight"
onclick="javascript:Silverlight.followFWLink({0});" style="border:0; cursor:pointer" src="{1}"/></td></tr><tr><td
style="background:#C7C7BD; text-align: center; color: black; font-family: Verdana; font-size: 9px; padding-bottom: 0.05cm;
;padding-top: 0.05cm" >By clicking <b>Get Microsoft Silverlight</b> you accept the <a title="Silverlight License Agreement"
href="{2}" target="_top" style="text-decoration: underline; color: #36A6C6"><b>Silverlight license
agreement</b></a>.</td></tr><tr><td style="border-left-style: solid; border-right-style: solid; border-width: 2px; border-
color:#c7c7bd; background: #817d77; color: #FFFFFF; text-align: center; font-family: Verdana; font-size: 9px">Silverlight
updates automatically, <a title="Silverlight Privacy Statement" href="{3}" target="_top" style="text-decoration: underline;
color: #36A6C6"><b>learn more</b></a>.</td></tr><tr><td><img src="{4}"/></td></tr></table>';a=a.replace
("{2}",f+g);a=a.replace("{3}",f+e);a=a.replace("{4}",f+h)}else{if(Silverlight.available)d="94377";else d="92801";if
(c=="Windows")b="92800";else if(c=="MacIntel")b="92812";else if(c=="MacPPC")b="92811";a='<div style="width: 205px; height:
67px; background-color: #FFFFFF"><img onclick="javascript:Silverlight.followFWLink({0});" style="border:0; cursor:pointer"
src="{1}" alt="Get Microsoft Silverlight"/></div>'}a=a.replace("{0}",b);a=a.replace("{1}",f+d);return
a}
;Silverlight.__cleanup
=
function
()
{for(var a=Silverlight._silverlightCount-1;a>=0;a--){window["__slload"+a]=null;window
["__slError"+a]=null}if(window.removeEventListener)window.removeEventListener("unload",false);else
window.detachEvent("onunload",Silverlight.__cleanup)}
;Silverlight.followFWLink
=
function
(a)
{top.location=Silverlight.fwlinkRoot+String(a)}
;Silverlight.HtmlAttributeEncode
=
function
(c)
{var a,b="";if(c==null)return
null;for(var d=0;d<c.length;d++){a=c.charCodeAt(d);if(a>96&&a<123||a>64&&a<91||a>43&&a<58&&a!=47||a==95)
b=b+String.fromCharCode(a);else b=b+"&#"+a+";"}return b}
Test.html(HTML页面,也是Silverlight的最终展示页面)
<!
DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
>
<
html
xmlns
="http://www.w3.org/1999/xhtml"
>
<
head
>
<
title
>
Untitled Page
</
title
>
<
script
type
="text/javascript"
src
="Silverlight.js"
></
script
>
<
script
type
="text/javascript"
src
="Test.html.js"
></
script
>
<
script
type
="text/javascript"
src
="Test.xaml.js"
></
script
>
</
head
>
<
body
>
<
div
id
="SilverlightPlugInHost"
>
<
script
type
="text/javascript"
>
createSilverlight();
</
script
>
</
div
>
</
body
>
</
html
>
Test.xaml(Silverlight程序主体)
<
Canvas
xmlns
="http://schemas.microsoft.com/client/2007"
xmlns:x
="http://schemas.microsoft.com/winfx/2006/xaml"
>
<
Canvas
>
<!--
Path1,EllipseGeometry
-->
<
Path
stroke
="Black"
strokeThickness
="2"
>
<
Path
.Data
>
<
EllipseGeometry
x:Name
="myEllipse"
Center
="100,100"
RadiusX
="50"
RadiusY
="50"
/>
</
Path.Data
>
<
Path
.Fill
>
<
RadialGradientBrush
Center
="0.5,0.5"
GradientOrigin
="0.15,0.3"
>
<
GradientStop
Color
="LightYellow"
Offset
="0.1"
/>
<
GradientStop
Color
="Yellow"
Offset
="0.3"
/>
<
GradientStop
Color
="Orange"
Offset
="0.6"
/>
<
GradientStop
Color
="Red"
Offset
="1.0"
/>
</
RadialGradientBrush
>
</
Path.Fill
>
<!--
Trigger
-->
<
Path
.Triggers
>
<
EventTrigger
RoutedEvent
="Path.Loaded"
>
<
BeginStoryboard
>
<
Storyboard
>
<
PointAnimation
Storyboard.TargetName
="myEllipse"
Storyboard.TargetProperty
="Center"
From
="100,100"
To
="300,300"
Duration
="0:0:1.5"
RepeatBehavior
="Forever"
/>
<
DoubleAnimation
Storyboard.TargetName
="myEllipse"
Storyboard.TargetProperty
="RadiusX"
From
="50"
To
="150"
Duration
="0:0:1.5"
RepeatBehavior
="Forever"
/>
<
DoubleAnimation
Storyboard.TargetName
="myEllipse"
Storyboard.TargetProperty
="RadiusY"
From
="50"
To
="150"
Duration
="0:0:1.5"
RepeatBehavior
="Forever"
/>
</
Storyboard
>
</
BeginStoryboard
>
</
EventTrigger
>
</
Path.Triggers
>
</
Path
>
</
Canvas
>
</
Canvas
>
Test.html.js(载入Silverlight对象)
function
createSilverlight()
{
Silverlight.createObjectEx({
source: 'Test.xaml',
parentElement: document.getElementById('SilverlightPlugInHost'),
id: 'SilverlightPlugIn',
properties: {
width: '500',
height: '500',
background:'#ffffffff',
iswindowless: 'false',
version: '1.0'
},
events: {
//onError: null,
//onLoad: Silverlight.createDelegate(scene, scene.handleLoad)
},
context: null
});
}
if
(
!
window.Silverlight)
window.Silverlight
=
{}
;
Silverlight.createDelegate
=
function
(instance, method)
{
return function() {
return method.apply(instance, arguments);
}
}
Test.xaml.js(Silverlight事件驱动代码)
if
(
!
window.Animation)
window.Animation
=
{}
;
Animation.Scene
=
function
()
{
}
Animation.Scene.prototype
=
{
handleLoad: function(control, userContext, rootElement)
{
this.control = control;
// Sample button event hookup: Find the button and then attach event handlers
this.button = rootElement.children.getItem(0);
this.button.addEventListener("MouseEnter", Sys.Silverlight.createDelegate(this, this.handleMouseEnter));
this.button.addEventListener("MouseLeftButtonDown", this.handleMouseDown));
this.button.addEventListener("MouseLeftButtonUp", this.handleMouseUp));
this.button.addEventListener("MouseLeave", this.handleMouseLeave));
},
// Sample event handlers
handleMouseEnter: function(sender, eventArgs)
{
// The following code shows how to find an element by name and call a method on it.
var mouseEnteranimation = sender.findName("mouseEnter");
mouseEnteranimation.begin();
},
handleMouseDown: function(sender, eventArgs)
{
var mouseDownAnimation = sender.findName("mouseDown");
mouseDownAnimation.begin();
},
handleMouseUp: function(sender, eventArgs)
{
var mouseUpAnimation = sender.findName("mouseUp");
mouseUpAnimation.begin();
// Put clicked logic here
alert("clicked");
},
handleMouseLeave: function(sender, eventArgs)
{
var mouseLeaveAnimation = sender.findName("mouseLeave");
mouseLeaveAnimation.begin();
}
}
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 [email protected] 举报，一经查实，本站将立刻删除。
