在图像滑块的项目符号上添加功能 jquery
adding function on bullet for image slider jquery
jQuery
var currentPosition = 0;
var slideWidth = 560;
var slides = $('.slide');
var numberOfSlides = slides.length;
// Remove scrollbar in JS
$('#slidesContainer').css('overflow', 'hidden');
// Wrap all .slides with #slideInner div
slides.wrapAll('<div id="slideInner"></div>')
// Float left to display horizontally, readjust .slides width
.css({
'float': 'left',
'width': slideWidth
});
// Set #slideInner width equal to total width of all slides
$('#slideInner').css('width', slideWidth * numberOfSlides);
// Insert controls in the DOM
$('#slideshow')
.prepend('<span class="control" id="leftControl">Clicking moves left</span>')
.append('<span class="control" id="rightControl">Clicking moves right</span>');
// Hide left arrow control on first load
// Create event listeners for .controls clicks
$('.control')
.bind('click', function () {
// Determine new position
if (($(this).attr('id') == 'rightControl')) {
if (currentPosition == numberOfSlides - 1) currentPosition = 0;
else currentPosition++;
} else if ($(this).attr('id') == 'leftControl') {
if (currentPosition == 0) currentPosition = numberOfSlides - 1;
else currentPosition--;
}
// Hide / show controls
// Move slideInner using margin-left
$('#slideInner').animate({
'marginLeft': slideWidth * (-currentPosition)
});
});
嗨，我在 fiddle 上偶然发现了这个滑块，我需要它来使用我的项目，我在 jquery
中还是新的
我给它添加了项目符号，项目符号如何指示幻灯片的位置？
以及项目符号如何可以点击。我就是找不到合适的例子
如果这是一个 stupid/nonsense 问题，我深表歉意。谢谢
link 到我找到 fiddle 的地方。谢谢楼主的好评。
jQuery slideshow retrn to start or last
所以，我只添加了您想要的项目符号功能。您可以（并且需要）整理和优化代码以使其变得更好。阅读我在代码中以正楷书写的评论(HTML/JS/CSS) 以查看我所做的更改。
(function($) {
var currentPosition = 0;
var slideWidth = 560;
var slides = $('.slide');
var numberOfSlides = slides.length;
// Remove scrollbar in JS
$('#slidesContainer').css('overflow', 'hidden');
// Wrap all .slides with #slideInner div
slides.wrapAll('<div id="slideInner"></div>')
// Float left to display horizontally, readjust .slides width
.css({
'float': 'left',
'width': slideWidth
});
// Set #slideInner width equal to total width of all slides
$('#slideInner').css('width', slideWidth * numberOfSlides);
// Insert controls in the DOM
// ADDED CLASS 'nav' -->
$('#slideshow')
.prepend('<span class="control nav" id="leftControl">Clicking moves left</span>')
.append('<span class="control nav" id="rightControl">Clicking moves right</span>');
//BULLETS MANAGER - TO HIGHLIGHT THE ACTIVE BULLET ON CAROUSEL BUILT
showBullets();
// Hide left arrow control on first load
// Create event listeners for .controls clicks
//USE EVENT DELEGATION AS YOU HAVE DYNAMICALLY GENERATED NAV ELEMENTS
$('#slideshow').on('click', '.nav', function (evt) {
evt.preventDefault();
// Determine new position
// USE THIS.ID AS IT'S A BIT FASTER AND CLEANER
if (this.id == 'rightControl') {
if (currentPosition == numberOfSlides - 1) currentPosition = 0;
else currentPosition++;
} else if (this.id == 'leftControl') {
if (currentPosition == 0) currentPosition = numberOfSlides - 1;
else currentPosition--;
//THE BULLETS RELATED CONDITION
} else if($(this).closest("ul").is("#bullets")) {
var $item = $(this).closest("li");
currentPosition = $item.index();
}
//BULLETS MANAGER
showBullets();
// Hide / show controls
// Move slideInner using margin-left
$('#slideInner').animate({
'marginLeft': slideWidth * (-currentPosition)
});
});
//THE BULLET MANAGER FUNCTION
function showBullets() {
var $bullets = $('#bullets');
$bullets.find(".nav").removeClass('activeBullet');
$bullets.find(".nav:eq(" + currentPosition + ")").addClass('activeBullet');
}
}(jQuery));
#slideshow {
margin:0 auto;
width:640px;
height:350px;
background:transparent url(img/bg_slideshow.jpg) no-repeat 0 0;
position:relative;
}
#slideshow #slidesContainer {
margin:0 auto;
width:560px;
height:263px;
overflow:auto;
/* allow scrollbar */
position:relative;
}
#slideshow #slidesContainer .slide {
margin:0 auto;
width:540px;
/* reduce by 20 pixels of #slidesContainer to avoid horizontal scroll */
height:263px;
}
/**
* Slideshow controls style rules.
*/
.control {
display:block;
width:39px;
height:263px;
text-indent:-10000px;
position:absolute;
cursor: pointer;
}
#leftControl {
top:0;
left:0;
background:#000;
}
#rightControl {
top:0;
right:0;
background:#000;
}
.nav-bullet {
position : absolute;
clear : both;
bottom : -5px;
left : 42%;
}
.nav-bullet ul li {
float : left;
margin-top : 20px;
}
.nav-bullet ul li a {
list-style-type : none;
text-indent : -9999px;
display : block;
width : 10px;
height : 10px;
float : left;
margin : 0 5px;
background-color : #000;
border-radius : 10px;
-moz-border-radius : 10px;
-webkit-border-radius : 10px;
}
/*BULLET HIGHLIGHT CLASS*/
.nav-bullet ul li a.activeBullet {
background-color : green;
}
.nav-bullet ul li a:hover, .nav-bullet ul li a.active {
background-color: gray;
}
.active {
background-color: #a89d8a !important;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="slideshow">
<div id="slidesContainer">
<div class="slide">
<h2>Web Development Tutorial</h2>
<p><a href="http://sixrevisions.com/tutorials/web-development-tutorials/using-xampp-for-local-wordpress-theme-development/"><img src="img/img_slide_01.jpg" alt="An image that says Install X A M P P for wordpress." width="215" height="145" /></a>If you're into developing web apps, you should check out the tutorial called "<a href="http://sixrevisions.com/tutorials/web-development-tutorials/using-xampp-for-local-wordpress-theme-development/">Using XAMPP for Local WordPress Theme Development</a>" which shows you how to set up a local testing server for developing PHP/Perl based applications locally on your computer. The example also shows you how to set up WordPress locally!</p>
</div>
<div class="slide">
<h2>Grunge Brushes, Anyone?</h2>
<p><a href="http://sixrevisions.com/freebies/brushes/sr-grunge-free-high-resolution-photoshop-grunge-brushes/"><img src="img/img_slide_02.jpg" width="215" height="145" alt="A thumbnail image that says S R grunge photoshop brushes 6 high resolution grunge brushes by six revisions." /></a>In this layout, I used <a href="http://sixrevisions.com/freebies/brushes/sr-grunge-free-high-resolution-photoshop-grunge-brushes/">SR Grunge</a>, which is a free set of high-resolution Photoshop brushes you can download here on Six Revisions.</p>
</div>
<div class="slide">
<h2>How About Some Awesome Grunge Textures?</h2>
<p><a href="http://sixrevisions.com/freebies/textures/grunge-extreme-15-high-resolution-grunge-textures/"><img src="img/img_slide_03.jpg" width="215" height="145" alt="A thumbnail image that says grunge extreme 15 free high resolution grunge textures six revisions." /></a>The texture used in this web page is from the Grunge Extreme Textures freebie set by JC Parmley released here on Six Revisions.</p>
<p>You can head over to the <a href="http://sixrevisions.com/freebies/textures/grunge-extreme-15-high-resolution-grunge-textures/">Grunge Extreme</a> page to download the texture set or check out Six Revisions' <a href="http://sixrevisions.com/category/freebies/">freebie section</a> for even more goodies!</p>
</div>
<div class="nav-bullet">
<ul id="bullets">
<!-- ADDED CLASS 'nav' -->
<li><a class="nav" href="#" id="bullet-one">1</a>
</li>
<li><a class="nav" href="#" id="bullet-two">2</a>
</li>
<li><a class="nav" href="#" id="bullet-three">3</a>
</li>
</ul>
</div>
</div>
<!--slidesContainer-->
</div>
<!--slideshow-->
jQuery
var currentPosition = 0;
var slideWidth = 560;
var slides = $('.slide');
var numberOfSlides = slides.length;
// Remove scrollbar in JS
$('#slidesContainer').css('overflow', 'hidden');
// Wrap all .slides with #slideInner div
slides.wrapAll('<div id="slideInner"></div>')
// Float left to display horizontally, readjust .slides width
.css({
'float': 'left',
'width': slideWidth
});
// Set #slideInner width equal to total width of all slides
$('#slideInner').css('width', slideWidth * numberOfSlides);
// Insert controls in the DOM
$('#slideshow')
.prepend('<span class="control" id="leftControl">Clicking moves left</span>')
.append('<span class="control" id="rightControl">Clicking moves right</span>');
// Hide left arrow control on first load
// Create event listeners for .controls clicks
$('.control')
.bind('click', function () {
// Determine new position
if (($(this).attr('id') == 'rightControl')) {
if (currentPosition == numberOfSlides - 1) currentPosition = 0;
else currentPosition++;
} else if ($(this).attr('id') == 'leftControl') {
if (currentPosition == 0) currentPosition = numberOfSlides - 1;
else currentPosition--;
}
// Hide / show controls
// Move slideInner using margin-left
$('#slideInner').animate({
'marginLeft': slideWidth * (-currentPosition)
});
});
嗨，我在 fiddle 上偶然发现了这个滑块，我需要它来使用我的项目，我在 jquery
中还是新的我给它添加了项目符号，项目符号如何指示幻灯片的位置？ 以及项目符号如何可以点击。我就是找不到合适的例子
如果这是一个 stupid/nonsense 问题，我深表歉意。谢谢
link 到我找到 fiddle 的地方。谢谢楼主的好评。
jQuery slideshow retrn to start or last
所以，我只添加了您想要的项目符号功能。您可以（并且需要）整理和优化代码以使其变得更好。阅读我在代码中以正楷书写的评论(HTML/JS/CSS) 以查看我所做的更改。
(function($) {
var currentPosition = 0;
var slideWidth = 560;
var slides = $('.slide');
var numberOfSlides = slides.length;
// Remove scrollbar in JS
$('#slidesContainer').css('overflow', 'hidden');
// Wrap all .slides with #slideInner div
slides.wrapAll('<div id="slideInner"></div>')
// Float left to display horizontally, readjust .slides width
.css({
'float': 'left',
'width': slideWidth
});
// Set #slideInner width equal to total width of all slides
$('#slideInner').css('width', slideWidth * numberOfSlides);
// Insert controls in the DOM
// ADDED CLASS 'nav' -->
$('#slideshow')
.prepend('<span class="control nav" id="leftControl">Clicking moves left</span>')
.append('<span class="control nav" id="rightControl">Clicking moves right</span>');
//BULLETS MANAGER - TO HIGHLIGHT THE ACTIVE BULLET ON CAROUSEL BUILT
showBullets();
// Hide left arrow control on first load
// Create event listeners for .controls clicks
//USE EVENT DELEGATION AS YOU HAVE DYNAMICALLY GENERATED NAV ELEMENTS
$('#slideshow').on('click', '.nav', function (evt) {
evt.preventDefault();
// Determine new position
// USE THIS.ID AS IT'S A BIT FASTER AND CLEANER
if (this.id == 'rightControl') {
if (currentPosition == numberOfSlides - 1) currentPosition = 0;
else currentPosition++;
} else if (this.id == 'leftControl') {
if (currentPosition == 0) currentPosition = numberOfSlides - 1;
else currentPosition--;
//THE BULLETS RELATED CONDITION
} else if($(this).closest("ul").is("#bullets")) {
var $item = $(this).closest("li");
currentPosition = $item.index();
}
//BULLETS MANAGER
showBullets();
// Hide / show controls
// Move slideInner using margin-left
$('#slideInner').animate({
'marginLeft': slideWidth * (-currentPosition)
});
});
//THE BULLET MANAGER FUNCTION
function showBullets() {
var $bullets = $('#bullets');
$bullets.find(".nav").removeClass('activeBullet');
$bullets.find(".nav:eq(" + currentPosition + ")").addClass('activeBullet');
}
}(jQuery));
#slideshow {
margin:0 auto;
width:640px;
height:350px;
background:transparent url(img/bg_slideshow.jpg) no-repeat 0 0;
position:relative;
}
#slideshow #slidesContainer {
margin:0 auto;
width:560px;
height:263px;
overflow:auto;
/* allow scrollbar */
position:relative;
}
#slideshow #slidesContainer .slide {
margin:0 auto;
width:540px;
/* reduce by 20 pixels of #slidesContainer to avoid horizontal scroll */
height:263px;
}
/**
* Slideshow controls style rules.
*/
.control {
display:block;
width:39px;
height:263px;
text-indent:-10000px;
position:absolute;
cursor: pointer;
}
#leftControl {
top:0;
left:0;
background:#000;
}
#rightControl {
top:0;
right:0;
background:#000;
}
.nav-bullet {
position : absolute;
clear : both;
bottom : -5px;
left : 42%;
}
.nav-bullet ul li {
float : left;
margin-top : 20px;
}
.nav-bullet ul li a {
list-style-type : none;
text-indent : -9999px;
display : block;
width : 10px;
height : 10px;
float : left;
margin : 0 5px;
background-color : #000;
border-radius : 10px;
-moz-border-radius : 10px;
-webkit-border-radius : 10px;
}
/*BULLET HIGHLIGHT CLASS*/
.nav-bullet ul li a.activeBullet {
background-color : green;
}
.nav-bullet ul li a:hover, .nav-bullet ul li a.active {
background-color: gray;
}
.active {
background-color: #a89d8a !important;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="slideshow">
<div id="slidesContainer">
<div class="slide">
<h2>Web Development Tutorial</h2>
<p><a href="http://sixrevisions.com/tutorials/web-development-tutorials/using-xampp-for-local-wordpress-theme-development/"><img src="img/img_slide_01.jpg" alt="An image that says Install X A M P P for wordpress." width="215" height="145" /></a>If you're into developing web apps, you should check out the tutorial called "<a href="http://sixrevisions.com/tutorials/web-development-tutorials/using-xampp-for-local-wordpress-theme-development/">Using XAMPP for Local WordPress Theme Development</a>" which shows you how to set up a local testing server for developing PHP/Perl based applications locally on your computer. The example also shows you how to set up WordPress locally!</p>
</div>
<div class="slide">
<h2>Grunge Brushes, Anyone?</h2>
<p><a href="http://sixrevisions.com/freebies/brushes/sr-grunge-free-high-resolution-photoshop-grunge-brushes/"><img src="img/img_slide_02.jpg" width="215" height="145" alt="A thumbnail image that says S R grunge photoshop brushes 6 high resolution grunge brushes by six revisions." /></a>In this layout, I used <a href="http://sixrevisions.com/freebies/brushes/sr-grunge-free-high-resolution-photoshop-grunge-brushes/">SR Grunge</a>, which is a free set of high-resolution Photoshop brushes you can download here on Six Revisions.</p>
</div>
<div class="slide">
<h2>How About Some Awesome Grunge Textures?</h2>
<p><a href="http://sixrevisions.com/freebies/textures/grunge-extreme-15-high-resolution-grunge-textures/"><img src="img/img_slide_03.jpg" width="215" height="145" alt="A thumbnail image that says grunge extreme 15 free high resolution grunge textures six revisions." /></a>The texture used in this web page is from the Grunge Extreme Textures freebie set by JC Parmley released here on Six Revisions.</p>
<p>You can head over to the <a href="http://sixrevisions.com/freebies/textures/grunge-extreme-15-high-resolution-grunge-textures/">Grunge Extreme</a> page to download the texture set or check out Six Revisions' <a href="http://sixrevisions.com/category/freebies/">freebie section</a> for even more goodies!</p>
</div>
<div class="nav-bullet">
<ul id="bullets">
<!-- ADDED CLASS 'nav' -->
<li><a class="nav" href="#" id="bullet-one">1</a>
</li>
<li><a class="nav" href="#" id="bullet-two">2</a>
</li>
<li><a class="nav" href="#" id="bullet-three">3</a>
</li>
</ul>
</div>
</div>
<!--slidesContainer-->
</div>
<!--slideshow-->