10. jQuery Effects
This tutorial covers all the important jQuery methods to create visual effects.
Showing and Hiding elements:
The commands for showing and hiding elements are pretty much what we would expect: show() to show the elements in a wrapped set and hide() to hide them.Syntax:
Here is the simple syntax for show() method:[selector].show( speed, [callback] );Here is the description of all the parameters:
-
speed: A string representing one of the three predefined
speeds ("slow", "normal", or "fast") or the number of milliseconds to
run the animation (e.g. 1000).
-
callback: This optional parameter represents a function to
be executed whenever the animation completes; executes once for each
element animated against.
[selector].hide( speed, [callback] ); |
-
speed: A string representing one of the three predefined
speeds ("slow", "normal", or "fast") or the number of milliseconds to
run the animation (e.g. 1000).
-
callback: This optional parameter represents a function to
be executed whenever the animation completes; executes once for each
element animated against.
Example:
Consider the following HTML file with a small JQuery coding:<html>
<head>
<title>the title</title>
<script type="text/javascript"
src="/jquery/jquery-1.3.2.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$("#show").click(function () {
$(".mydiv").show( 1000 );
});
$("#hide").click(function () {
$(".mydiv").hide( 1000 );
});
});
</script>
<style>
.mydiv{ margin:10px;padding:12px;
border:2px solid #666;
width:100px;
height:100px;
}
</style>
</head>
<body>
<div class="mydiv">
This is SQUAR
</div>
<input id="hide" type="button" value="Hide" />
<input id="show" type="button" value="Show" />
</body>
</html>
Toggling the elements:
jQuery provides methods to toggle the display state of elements between revealed or hidden. If the element is initially displayed, it will be hidden; if hidden, it will be shown.Syntax:
Here is the simple syntax for one of the toggle() methods:
[selector]..toggle([speed][, callback]); |
-
speed: A string representing one of the three predefined
speeds ("slow", "normal", or "fast") or the number of milliseconds to
run the animation (e.g. 1000).
-
callback: This optional parameter represents a function to
be executed whenever the animation completes; executes once for each
element animated against.
Example:
We can animate any element, such as a simple <div> containing an image:<html>
<head>
<title>the title</title>
<script type="text/javascript"
src="/jquery/jquery-1.3.2.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$(".clickme").click(function(event){
$(".target").toggle('slow', function(){
$(".log").text('Transition Complete');
});
});
});
</script>
<style>
.clickme{ margin:10px;padding:12px;
border:2px solid #666;
width:100px;
height:50px;
}
</style>
</head>
<body>
<div class="content">
<div class="clickme">Click Me</div>
<div class="target">
<img src="/images/jquery.jpg" alt="jQuery" />
</div>
<div class="log"></div>
</body>
</html>
JQuery Effect Methods:
You have seen basic concept of jQuery Effects. Following table lists down all the important methods to create different kind of effects:| Methods and Description |
|---|
|
animate( params, [duration, easing, callback] ) A function for making custom animations. |
|
fadeIn( speed, [callback] ) Fade in all matched elements by adjusting their opacity and firing an optional callback after completion. |
|
fadeOut( speed, [callback] ) Fade out all matched elements by adjusting their opacity to 0, then setting display to "none" and firing an optional callback after completion. |
|
fadeTo( speed, opacity, callback ) Fade the opacity of all matched elements to a specified opacity and firing an optional callback after completion. |
|
hide( ) Hides each of the set of matched elements if they are shown. |
|
hide( speed, [callback] ) Hide all matched elements using a graceful animation and firing an optional callback after completion. |
|
show( ) Displays each of the set of matched elements if they are hidden. |
|
show( speed, [callback] ) Show all matched elements using a graceful animation and firing an optional callback after completion. |
|
slideDown( speed, [callback] ) Reveal all matched elements by adjusting their height and firing an optional callback after completion. |
|
slideToggle( speed, [callback] ) Toggle the visibility of all matched elements by adjusting their height and firing an optional callback after completion. |
|
slideUp( speed, [callback] ) Hide all matched elements by adjusting their height and firing an optional callback after completion. |
|
stop( [clearQueue, gotoEnd ]) Stops all the currently running animations on all the specified elements. |
|
toggle( ) Toggle displaying each of the set of matched elements. |
|
toggle( speed, [callback] ) Toggle displaying each of the set of matched elements using a graceful animation and firing an optional callback after completion. |
|
toggle( switch ) Toggle displaying each of the set of matched elements based upon the switch (true shows all elements, false hides all elements). |
|
jQuery.fx.off Globally disable all animations. |
