如何停止和播放jquery脚本
我正在使用slidejs在单页网站上创建5个不同的幻灯片/画廊。 他们都有’.slides’类，并有自己的ID。
在调用播放function之前，我不希望播放任何幻灯片。 我已经能够使用以下方法成功阻止每个幻灯片播放onload：
function initiateSlides() { $('.slides').slides({ generateNextPrev: true, fadeSpeed: 800, hoverPause: true, play: 3000, pause: 2500, preloadImage: 'images/loading.gif', effect: 'fade' }); clearInterval($('#projects-commercial-slides').data('interval')); clearInterval($('#projects-residential-slides').data('interval')); clearInterval($('#projects-hospitality-slides').data('interval')); clearInterval($('#projects-public-slides').data('interval')); clearInterval($('#projects-industrial-slides').data('interval')); } （使用类’.slides’不会停止幻灯片放映，因此使用ID。）但是，我现在无法播放任何幻灯片。 我尝试过以下方法：
function playSlides() { $('#projects-residential-slides').animate(); } function playSlides() { $('#projects-residential-slides').play(); } function playSlides() { $('#projects-residential-slides').animate({ animationStart:0 }); } function playSlides() { $('#projects-residential-slides').animate('next',fade); }
感谢您的建议，因为我已经为此工作了好几天（！）。 我很欣赏我可能不会阻止幻灯片以最优雅的方式播放。 完整的slides.jquery.js在这里：
/* * Slides, A Slideshow Plugin for jQuery * Intructions: http://slidesjs.com * By: Nathan Searles, http://nathansearles.com * Version: 1.1.8 * Updated: June 1st, 2011 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ (function($){ $.fn.slides = function( option ) { // override defaults with specified option option = $.extend( {}, $.fn.slides.option, option ); return this.each(function(){ // wrap slides in control container, make sure slides are block level $('.' + option.container, $(this)).children().wrapAll(''); var elem = $(this), control = $('.slides_control',elem), total = control.children().size(), width = control.children().outerWidth(), height = control.children().outerHeight(), start = option.start - 1, effect = option.effect.indexOf(',') < 0 ? option.effect : option.effect.replace(' ', '').split(',')[0], paginationEffect = option.effect.indexOf(',') prev) { position = width*2; direction = -width*2; } else { // if next is less then previous set position of next slide to left of previous position = 0; direction = 0; } // store new current slide current = next; break; } // fade animation if (effect === 'fade') { // fade animation with crossfade if (option.crossfade) { // put hidden next above current control.children(':eq('+ next +')', elem).css({ zIndex: 10 // fade in next }).fadeIn(option.fadeSpeed, option.fadeEasing, function(){ if (option.autoHeight) { // animate container to height of next control.animate({ height: control.children(':eq('+ next +')', elem).outerHeight() }, option.autoHeightSpeed, function(){ // hide previous control.children(':eq('+ prev +')', elem).css({ display: 'none', zIndex: 0 }); // reset z index control.children(':eq('+ next +')', elem).css({ zIndex: 0 }); // end of animation option.animationComplete(next + 1); active = false; }); } else { // hide previous control.children(':eq('+ prev +')', elem).css({ display: 'none', zIndex: 0 }); // reset zindex control.children(':eq('+ next +')', elem).css({ zIndex: 0 }); // end of animation option.animationComplete(next + 1); active = false; } }); } else { // fade animation with no crossfade control.children(':eq('+ prev +')', elem).fadeOut(option.fadeSpeed, option.fadeEasing, function(){ // animate to new height if (option.autoHeight) { control.animate({ // animate container to height of next height: control.children(':eq('+ next +')', elem).outerHeight() }, option.autoHeightSpeed, // fade in next slide function(){ control.children(':eq('+ next +')', elem).fadeIn(option.fadeSpeed, option.fadeEasing); }); } else { // if fixed height control.children(':eq('+ next +')', elem).fadeIn(option.fadeSpeed, option.fadeEasing, function(){ // fix font rendering in ie, lame if($.browser.msie) { $(this).get(0).style.removeAttribute('filter'); } }); } // end of animation option.animationComplete(next + 1); active = false; }); } // slide animation } else { // move next slide to right of previous control.children(':eq('+ next +')').css({ left: position, display: 'block' }); // animate to new height if (option.autoHeight) { control.animate({ left: direction, height: control.children(':eq('+ next +')').outerHeight() },option.slideSpeed, option.slideEasing, function(){ control.css({ left: -width }); control.children(':eq('+ next +')').css({ left: width, zIndex: 5 }); // reset previous slide control.children(':eq('+ prev +')').css({ left: width, display: 'none', zIndex: 0 }); // end of animation option.animationComplete(next + 1); active = false; }); // if fixed height } else { // animate control control.animate({ left: direction },option.slideSpeed, option.slideEasing, function(){ // after animation reset control position control.css({ left: -width }); // reset and show next control.children(':eq('+ next +')').css({ left: width, zIndex: 5 }); // reset previous slide control.children(':eq('+ prev +')').css({ left: width, display: 'none', zIndex: 0 }); // end of animation option.animationComplete(next + 1); active = false; }); } } // set current state for pagination if (option.pagination) { // remove current class from all $('.'+ option.paginationClass +' li.' + option.currentClass, elem).removeClass(option.currentClass); // add current class to next $('.' + option.paginationClass + ' li:eq('+ next +')', elem).addClass(option.currentClass); } } } // end animate function function stop() { // clear interval from stored id clearInterval(elem.data('interval')); } function pause() { if (option.pause) { // clear timeout and interval clearTimeout(elem.data('pause')); clearInterval(elem.data('interval')); // pause slide show for option.pause amount pauseTimeout = setTimeout(function() { // clear pause timeout clearTimeout(elem.data('pause')); // start play interval after pause playInterval = setInterval( function(){ animate("next", effect); },option.play); // store play interval elem.data('interval',playInterval); },option.pause); // store pause interval elem.data('pause',pauseTimeout); } else { // if no pause, just stop stop(); } } // 2 or more slides required if (total < 2) { return; } // error corection for start slide if (start total) { start = total - 1; } // change current based on start option number if (option.start) { current = start; } // randomizes slide order if (option.randomize) { control.randomize(); } // make sure overflow is hidden, width is set $('.' + option.container, elem).css({ overflow: 'hidden', // fix for ie position: 'relative' }); // set css for slides control.children().css({ position: 'absolute', top: 0, left: control.children().outerWidth(), zIndex: 0, display: 'none' }); // set css for control div control.css({ position: 'relative', // size of control 3 x slide width width: (width * 3), // set height to slide height height: height, // center control to slide left: -width }); // show slides $('.' + option.container, elem).css({ display: 'block' }); // if autoHeight true, get and set height of first slide if (option.autoHeight) { control.children().css({ height: 'auto' }); control.animate({ height: control.children(':eq('+ start +')').outerHeight() },option.autoHeightSpeed); } // checks if image is loaded if (option.preload && control.find('img:eq(' + start + ')').length) { // adds preload image $('.' + option.container, elem).css({ background: 'url(' + option.preloadImage + ') no-repeat 50% 50%' }); // gets image src, with cache buster var img = control.find('img:eq(' + start + ')').attr('src') + '?' + (new Date()).getTime(); // check if the image has a parent if ($('img', elem).parent().attr('class') != 'slides_control') { // If image has parent, get tag name imageParent = control.children(':eq(0)')[0].tagName.toLowerCase(); } else { // Image doesn't have parent, use image tag name imageParent = control.find('img:eq(' + start + ')'); } // checks if image is loaded control.find('img:eq(' + start + ')').attr('src', img).load(function() { // once image is fully loaded, fade in control.find(imageParent + ':eq(' + start + ')').fadeIn(option.fadeSpeed, option.fadeEasing, function(){ $(this).css({ zIndex: 5 }); // removes preload image $('.' + option.container, elem).css({ background: '' }); // let the script know everything is loaded loaded = true; // call the loaded funciton option.slidesLoaded(); }); }); } else { // if no preloader fade in start slide control.children(':eq(' + start + ')').fadeIn(option.fadeSpeed, option.fadeEasing, function(){ // let the script know everything is loaded loaded = true; // call the loaded funciton option.slidesLoaded(); }); } // click slide for next if (option.bigTarget) { // set cursor to pointer control.children().css({ cursor: 'pointer' }); // click handler control.children().click(function(){ // animate to next on slide click animate('next', effect); return false; }); } // pause on mouseover if (option.hoverPause && option.play) { control.bind('mouseover',function(){ // on mouse over stop stop(); }); control.bind('mouseleave',function(){ // on mouse leave start pause timeout pause(); }); } // generate next/prev buttons if (option.generateNextPrev) { $('.' + option.container, elem).after('Prev'); $('.' + option.prev, elem).after('Next'); } // next button $('.' + option.next ,elem).click(function(e){ e.preventDefault(); if (option.play) { pause(); } animate('next', effect); }); // previous button $('.' + option.prev, elem).click(function(e){ e.preventDefault(); if (option.play) { pause(); } animate('prev', effect); }); // generate pagination if (option.generatePagination) { // create unordered list if (option.prependPagination) { elem.prepend('
'); } else { elem.append('
'); } // for each slide create a list item and link control.children().each(function(){ $('.' + option.paginationClass, elem).append(''+ (number+1) +' '); number++; }); } else { // if pagination exists, add href w/ value of item number to links $('.' + option.paginationClass + ' li a', elem).each(function(){ $(this).attr('href', '#' + number); number++; }); } // add current class to start slide pagination $('.' + option.paginationClass + ' li:eq('+ start +')', elem).addClass(option.currentClass); // click handling $('.' + option.paginationClass + ' li a', elem ).click(function(){ // pause slideshow if (option.play) { pause(); } // get clicked, pass to animate function clicked = $(this).attr('href').match('[^#/]+$'); // if current slide equals clicked, don't do anything if (current != clicked) { animate('pagination', paginationEffect, clicked); } return false; }); // click handling $('a.link', elem).click(function(){ // pause slideshow if (option.play) { pause(); } // get clicked, pass to animate function clicked = $(this).attr('href').match('[^#/]+$') - 1; // if current slide equals clicked, don't do anything if (current != clicked) { animate('pagination', paginationEffect, clicked); } return false; }); if (option.play) { // set interval playInterval = setInterval(function() { animate('next', effect); }, option.play); // store interval id elem.data('interval',playInterval); } }); }; // default options $.fn.slides.option = { preload: false, // boolean, Set true to preload images in an image based slideshow preloadImage: '/img/loading.gif', // string, Name and location of loading image for preloader. Default is "/img/loading.gif" container: 'slides_container', // string, Class name for slides container. Default is "slides_container" generateNextPrev: false, // boolean, Auto generate next/prev buttons next: 'next', // string, Class name for next button prev: 'prev', // string, Class name for previous button pagination: true, // boolean, If you're not using pagination you can set to false, but don't have to generatePagination: true, // boolean, Auto generate pagination prependPagination: false, // boolean, prepend pagination paginationClass: 'pagination', // string, Class name for pagination currentClass: 'current', // string, Class name for current class fadeSpeed: 350, // number, Set the speed of the fading animation in milliseconds fadeEasing: '', // string, must load jQuery's easing plugin before http://gsgd.co.uk/sandbox/jquery/easing/ slideSpeed: 350, // number, Set the speed of the sliding animation in milliseconds slideEasing: '', // string, must load jQuery's easing plugin before http://gsgd.co.uk/sandbox/jquery/easing/ start: 1, // number, Set the speed of the sliding animation in milliseconds effect: 'slide', // string, '[next/prev], [pagination]', eg 'slide, fade' or simply 'fade' for both crossfade: false, // boolean, Crossfade images in a image based slideshow randomize: false, // boolean, Set to true to randomize slides play: 0, // number, Autoplay slideshow, a positive number will set to true and be the time between slide animation in milliseconds pause: 0, // number, Pause slideshow on click of next/prev or pagination. A positive number will set to true and be the time of pause in milliseconds hoverPause: false, // boolean, Set to true and hovering over slideshow will pause it autoHeight: false, // boolean, Set to true to auto adjust height autoHeightSpeed: 350, // number, Set auto height animation time in milliseconds bigTarget: false, // boolean, Set to true and the whole slide will link to next slide on click animationStart: function(){}, // Function called at the start of animation animationComplete: function(){}, // Function called at the completion of animation slidesLoaded: function() {} // Function is called when slides is fully loaded }; // Randomize slide order on load $.fn.randomize = function(callback) { function randomizeOrder() { return(Math.round(Math.random())-0.5); } return($(this).each(function() { var $this = $(this); var $children = $this.children(); var childCount = $children.length; if (childCount > 1) { $children.hide(); var indices = []; for (i=0;i<childCount;i++) { indices[indices.length] = i; } indices = indices.sort(randomizeOrder); $.each(indices,function(j,k) { var $child = $children.eq(k); var $clone = $child.clone(true); $clone.show().appendTo($this); if (callback !== undefined) { callback($child, $clone); } $child.remove(); }); } })); }; })(jQuery);
我建议使用（或看看）Slidejs 2 https://github.com/nathansearles/Slides 。
理由你正在尝试的是什么工作是因为他从未公开你试图调用的那些方法（有些甚至不存在）。 在没有播放选项的情况下调用幻灯片将阻止自动播放，但它也会初始化slidejs（包装容器的子节点）。 稍后再次调用它将重新初始化它，从而导致它你提到的双重包装。
在版本2中，他添加了一个适合您的API：
// With slidejs2 // stopping all slides $(".slides").each(function() { $(this).slides("stop"); }); // playing all slides $(".slides").each(function() { $(this).slides("play"); });
除此之外，您还可以将clearInterval代码写为：
$('.slides').each(function() { clearInterval($(this).data("interval")); });