jQuery UI 实例 _ 特效(Effect)

对一个元素应用动画特效。

如需了解更多有关 .effect() 方法的细节,请查看 API 文档 .effect()

.effect() 演示

点击按钮预览特效。

<!doctype html>
<html lang="en">
<head>
 <meta charset="utf-8">
 <title>jQuery UI 特效 - .effect() 演示</title>
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
 <script src="//code.jquery.com/jquery-1.9.1.js"></script>
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
 <style>
 .toggler { width: 500px; height: 200px; position: relative; }
 #button { padding: .5em 1em; text-decoration: none; }
 #effect { width: 240px; height: 135px; padding: 0.4em; position: relative; }
 #effect h3 { margin: 0; padding: 0.4em; text-align: center; }
 .ui-effects-transfer { border: 2px dotted gray; }
 </style>
 <script>
 $(function() {
 // 运行当前选中的特效
 function runEffect() {
 // 从中获取特效类型
 var selectedEffect = $( "#effectTypes" ).val();
 
 // 大多数的特效类型默认不需要传递选项
 var options = {};
 // 一些特效带有必需的参数
 if ( selectedEffect === "scale" ) {
 options = { percent: 0 };
 } else if ( selectedEffect === "transfer" ) {
 options = { to: "#button", className: "ui-effects-transfer" };
 } else if ( selectedEffect === "size" ) {
 options = { to: { width: 200, height: 60 } };
 }
 
 // 运行特效
 $( "#effect" ).effect( selectedEffect, options, 500, callback );
 };
 
 // 回调函数
 function callback() {
 setTimeout(function() {
 $( "#effect" ).removeAttr( "style" ).hide().fadeIn();
 }, 1000 );
 };
 
 // 根据选择菜单值设置特效
 $( "#button" ).click(function() {
 runEffect();
 return false;
 });
 });
 </script>
</head>
<body>
 
<div class="toggler">
 <div id="effect" class="ui-widget-content ui-corner-all">
 <h3 class="ui-widget-header ui-corner-all">特效(Effect)</h3>
 <p>
 Etiam libero neque, luctus a, eleifend nec, semper at, lorem. Sed pede. Nulla lorem metus, adipiscing ut, luctus sed, hendrerit vitae, mi.
 </p>
 </div>
</div>
 
<select name="effects" id="effectTypes">
 <option value="blind">百叶窗特效(Blind Effect)</option>
 <option value="bounce">反弹特效(Bounce Effect)</option>
 <option value="clip">剪辑特效(Clip Effect)</option>
 <option value="drop">降落特效(Drop Effect)</option>
 <option value="explode">爆炸特效(Explode Effect)</option>
 <option value="fade">淡入淡出特效(Fade Effect)</option>
 <option value="fold">折叠特效(Fold Effect)</option>
 <option value="highlight">突出特效(Highlight Effect)</option>
 <option value="puff">膨胀特效(Puff Effect)</option>
 <option value="pulsate">跳动特效(Pulsate Effect)</option>
 <option value="scale">缩放特效(Scale Effect)</option>
 <option value="shake">震动特效(Shake Effect)</option>
 <option value="size">尺寸特效(Size Effect)</option>
 <option value="slide">滑动特效(Slide Effect)</option>
 <option value="transfer">转移特效(Transfer Effect)</option>
</select>
 
<a href="#" id="button" class="ui-state-default ui-corner-all">运行特效</a>
 
 
</body>
</html>

Easing 演示

本实例使用 HTML Canvas 元素,绘制了 jQuery UI 提供的所有 easings。 点击每个图可查看该 easing 的行为。。

<!doctype html>
<html lang="en">
<head>
 <meta charset="utf-8">
 <title>jQuery UI 特效 - Easing 演示</title>
 <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
 <script src="//code.jquery.com/jquery-1.9.1.js"></script>
 <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
 <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
 <style>
 .graph {
 float: left;
 margin-left: 10px;
 }
 </style>
 <script>
 $(function() {
 if ( !$( "<canvas>" )[0].getContext ) {
 $( "<div>" ).text(
 "您的浏览器不支持 canvas,本演示需要在支持 canvas 的浏览器下进行。"
 ).appendTo( "#graphs" );
 return;
 }
 
 var i = 0,
 width = 100,
 height = 100;
 
 $.each( $.easing, function( name, impl ) {
 var graph = $( "<div>" ).addClass( "graph" ).appendTo( "#graphs" ),
 text = $( "<div>" ).text( ++i + ". " + name ).appendTo( graph ),
 wrap = $( "<div>" ).appendTo( graph ).css( 'overflow', 'hidden' ),
 canvas = $( "<canvas>" ).appendTo( wrap )[ 0 ];
 
 canvas.width = width;
 canvas.height = height;
 var drawHeight = height * 0.8,
 cradius = 10;
 ctx = canvas.getContext( "2d" );
 ctx.fillStyle = "black";
 
 // 绘制背景
 ctx.beginPath();
 ctx.moveTo( cradius, 0 );
 ctx.quadraticCurveTo( 0, 0, 0, cradius );
 ctx.lineTo( 0, height - cradius );
 ctx.quadraticCurveTo( 0, height, cradius, height );
 ctx.lineTo( width - cradius, height );
 ctx.quadraticCurveTo( width, height, width, height - cradius );
 ctx.lineTo( width, 0 );
 ctx.lineTo( cradius, 0 );
 ctx.fill();
 
 // 绘制底线
 ctx.strokeStyle = "#555";
 ctx.beginPath();
 ctx.moveTo( width * 0.1, drawHeight + .5 );
 ctx.lineTo( width * 0.9, drawHeight + .5 );
 ctx.stroke();
 
 // 绘制顶线
 ctx.strokeStyle = "#555";
 ctx.beginPath();
 ctx.moveTo( width * 0.1, drawHeight * .3 - .5 );
 ctx.lineTo( width * 0.9, drawHeight * .3 - .5 );
 ctx.stroke();
 
 // 绘制 easing
 ctx.strokeStyle = "white";
 ctx.beginPath();
 ctx.lineWidth = 2;
 ctx.moveTo( width * 0.1, drawHeight );
 $.each( new Array( width ), function( position ) {
 var state = position / width,
 val = impl( state, position, 0, 1, width );
 ctx.lineTo( position * 0.8 + width * 0.1,
 drawHeight - drawHeight * val * 0.7 );
 });
 ctx.stroke();
 
 // 点击时动态改变
 graph.click(function() {
 wrap
 .animate( { height: "hide" }, 2000, name )
 .delay( 800 )
 .animate( { height: "show" }, 2000, name );
 });
 
 graph.width( width ).height( height + text.height() + 10 );
 });
 });
 </script>
</head>
<body>
 
<div id="graphs"></div>
 
 
</body>
</html>

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