kedudukan
Letakkan elemen relatif kepada tetingkap, dokumen, sauh, kursor/tetikus, dsb.
Untuk butiran lanjut tentang kaedah .position(), lihat dokumentasi API untuk .position().
Fungsi lalai
Gunakan kawalan borang untuk mengkonfigurasi kedudukan, atau seret elemen diposisikan untuk mengubah suai offsetnya. Seret elemen induk ke sekeliling untuk melihat pengesanan perlanggaran.
Instance
<!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>Run Instance»
Klik butang "Run Instance" untuk melihat contoh dalam talian
Gelung Imej
Prototaip penyemak imbas foto, menggunakan Position untuk menetapkan imej masing-masing ke kiri, tengah dan kanan, dan kemudian paparkannya dalam gelung. Gunakan pautan di bahagian atas untuk mengitar imej, atau klik ke kiri atau kanan imej untuk mengitar imej. Ambil perhatian bahawa apabila tetingkap diubah saiz, imej diposisikan semula.
Instance
<!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="#">上一个</a>
<a id="next" href="#">下一个</a>
</div>
</body>
</html>Run Instance»
Klik butang "Run Instance" untuk melihat contoh dalam talian
