jQuery UI Examples -Position
Position an element relative to the window, document, anchor, cursor/mouse, and other elements.
To learn more about.position()the details of the method, please see the API documentation.position()。
Default functionality
Use form controls to configure the position, or drag the positioned element to modify its offset. Drag the parent element around to view collision detection.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 定位（Position） - 默认功能</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>
#parent {
width: 60%;
height: 40px;
margin: 10px auto;
padding: 5px;
border: 1px solid #777;
background-color: #FBCA93;
text-align: center;
}
.positionable {
position: absolute;
display: block;
right: 0;
bottom: 0;
background-color: #BCD5E6;
text-align: center;
}
#positionable1 {
width: 75px;
height: 75px;
}
#positionable2 {
width: 120px;
height: 40px;
}
select, input {
margin-left: 15px;
}
</style>
<script>
$(function() {
function position() {
$( ".positionable" ).position({
of: $( "#parent" ),
my: $( "#my_horizontal" ).val() + " " + $( "#my_vertical" ).val(),
at: $( "#at_horizontal" ).val() + " " + $( "#at_vertical" ).val(),
collision: $( "#collision_horizontal" ).val() + " " + $( "#collision_vertical" ).val()
});
}
$( ".positionable" ).css( "opacity", 0.5 );
$( "select, input" ).bind( "click keyup change", position );
$( "#parent" ).draggable({
drag: position
});
position();
});
</script>
</head>
<body>
<div id="parent">
<p>
这是父元素的位置。
</p>
</div>
<div class="positionable" id="positionable1">
<p>
to position
</p>
</div>
<div class="positionable" id="positionable2">
<p>
to position 2
</p>
</div>
<div style="padding: 20px; margin-top: 75px;">
定位...
<div style="padding-bottom: 20px;">
<b>my:</b>
<select id="my_horizontal">
<option value="left">left</option>
<option value="center">center</option>
<option value="right">right</option>
</select>
<select id="my_vertical">
<option value="top">top</option>
<option value="center">center</option>
<option value="bottom">bottom</option>
</select>
</div>
<div style="padding-bottom: 20px;">
<b>at:</b>
<select id="at_horizontal">
<option value="left">left</option>
<option value="center">center</option>
<option value="right">right</option>
</select>
<select id="at_vertical">
<option value="top">top</option>
<option value="center">center</option>
<option value="bottom">bottom</option>
</select>
</div>
<div style="padding-bottom: 20px;">
<b>collision:</b>
<select id="collision_horizontal">
<option value="flip">flip</option>
<option value="fit">fit</option>
<option value="flipfit">flipfit</option>
<option value="none">none</option>
</select>
<select id="collision_vertical">
<option value="flip">flip</option>
<option value="fit">fit</option>
<option value="flipfit">flipfit</option>
<option value="none">none</option>
</select>
</div>
</div>
</body>
</html>
Image Cycling
A photo browser prototype that uses Position to place the images on the left, center, and right respectively, then cycles through them. Use the links at the top to cycle the images, or click on the left or right side of the image to cycle them. Note that the images are repositioned when the window is resized.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 定位（Position） - 图像循环</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>
body {
margin: 0;
}
#container {
overflow: hidden;
position: relative;
height: 400px;
}
img {
position: absolute;
}
</style>
<script>
$(function() {
// 重构部件，去除这些插件方法
$.fn.left = function( using ) {
return this.position({
my: "right middle",
at: "left+25 middle",
of: "#container",
collision: "none",
using: using
});
};
$.fn.right = function( using ) {
return this.position({
my: "left middle",
at: "right-25 middle",
of: "#container",
collision: "none",
using: using
});
};
$.fn.center = function( using ) {
return this.position({
my: "center middle",
at: "center middle",
of: "#container",
using: using
});
};
$( "img:eq(0)" ).left();
$( "img:eq(1)" ).center();
$( "img:eq(2)" ).right();
function animate( to ) {
$( this ).stop( true, false ).animate( to );
}
function next( event ) {
event.preventDefault();
$( "img:eq(2)" ).center( animate );
$( "img:eq(1)" ).left( animate );
$( "img:eq(0)" ).right().appendTo( "#container" );
}
function previous( event ) {
event.preventDefault();
$( "img:eq(0)" ).center( animate );
$( "img:eq(1)" ).right( animate );
$( "img:eq(2)" ).left().prependTo( "#container" );
}
$( "#previous" ).click( previous );
$( "#next" ).click( next );
$( "img" ).click(function( event ) {
$( "img" ).index( this ) === 0 ? previous( event ) : next( event );
});
$( window ).resize(function() {
$( "img:eq(0)" ).left( animate );
$( "img:eq(1)" ).center( animate );
$( "img:eq(2)" ).right( animate );
});
});
</script>
</head>
<body>
<div id="container">
<img src="../wp-content/uploads/2014/03/earth.jpg" width="458" height="308" alt="earth">
<img src="../wp-content/uploads/2014/03/flight.jpg" width="512" height="307" alt="flight">
<img src="../wp-content/uploads/2014/03/rocket.jpg" width="300" height="353" alt="rocket">
<a id="previous" href="../index.html">上一个</a>
<a id="next" href="../index.html">下一个</a>
</div>
</body>
</html>
Other Extensions