Cũng đã 10 ngày rồi
không vào Blog, hôm nay ghé thăm cảm thấy đơn điệu quá L.
Chắc từ nay về sau một tuần mình chỉ viết một bài vào thứ hai thôi (Do thời
gian của mình càng ngày càng hạn hẹp, nhưng mình vẫn cố gắng trả lời thắc mắc
khi các bạn cần). Còn riêng hôm nay mình sẽ hướng dẫn các bạn cách chằn một “SlideShow trình chiếu có gắn phần mô tả ngắn cho từng hình ảnh” trông rất chuyên nghiệp,
thường gắn vào cột sitebar để giới thiệu một số bài viết nổi bật của họ hay tạo
Banner để quảng cáo là hợp lý nhất.
Đọc thêm:
SlideShow trình chiếu
này được phát triển bởi Dynamicdrive, sử dụng một đoạn Javarscip và CSS với hiệu
ứng mượt từ thư viện JQuery dưới đây là DEMO cho các bạn xem trước.
☼
Giờ bắt đầu thủ thuật cùng Windows2it.
Đầu tiên bạn vào Blog => Bố cục
=> Thêm tiện ích => HTML/JavaScript và dán
đoạn mã code dưới đây vào và Lưu lại.
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js"></script> <style type="text/css"> /*Make sure your page contains a valid doctype at the top*/ #simplegallery1{ //CSS for Simple Gallery Example 1 position: relative; /*keep this intact*/ visibility: hidden; /*keep this intact*/ border: 1px solid #666; } #simplegallery1 .gallerydesctext{ //CSS for description DIV of Example 1 (if defined) text-align: left; padding: 2px 5px; font: 10px normal verdana, arial; } </style> <script type="text/javascript" > var simpleGallery_navpanel={ loadinggif: 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnWqYV_5lFXr0M0PhLqshY-yxjAwXFTeg0zAQcbMOk9dQy-wKXWZIjn-LoaieZ4J2EBLqINk086PUT354pAIRdqTOoYqzCdXQ_Z6xBHDl2UswuX7nW8xrDhOf4dGLQ8b9HM3vORZaN1KI/s1600/ajaxload-namkna-blogspot-com.png', //full path or URL to loading gif image panel: {height:'45px', opacity:0.5, paddingTop:'5px', fontStyle:'bold 11px Verdana'}, //customize nav panel container images: [ 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhn-EuuhzAjU5GAtYO11e9RSq0HIrFawVTpdYbZM_QSyVyfcAPGih-uROThPPWrI9WyWQ438uSmK4zd2SsO5EWy561pH0lxDfiu0MdZ7d-q_za7wb1cCqeXGt3QQ_Rm_0updsH5HlXeDm8/s1600/left-namkna-blogspot-com.png', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixpD1Z-YJDRxUdNVz93esqQjdr9-eH6PMMjI8QZyYvUSLSkcaMSSAeg1p0KFySfs64iKTMXen0ZWgC6UmYEq6_ZLk4Cg6bEbgRx13l7_cHFYCduyaaIUGZZIo3NmG9F211d-tXET_W47U/s1600/play-namkna-blogspot-com.png', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBT3omHHWGfzqtSjJN8dPYNu7l3gRIzZAfjlETdne2yQ1moUwfbLFsXOBPe5_5paL0VPB5LjdDMgeqM5WtjhnyltltRzyGpwGSZFpWI_NQ5IlfqpttF4ffT90xqxMMp7hv8WckfPRV9Y8/s1600/right-namkna-blogspot-com.png', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgFqdqcbFvS1MVq958-I3Z46KeLPsYRoVgHoQ2DjrE7dnoEXE9qMMhQdiVWgrZWBJhiyGHagDY-A8WVtiTV-_zT2nvUJoAIopBShdeKAwmuBWP826akGWoPYxuPWtFihV63yq1Oot0MLJo/s1600/pause-namklna-blogspot-com.png'], //nav panel images (in that order) imageSpacing: {offsetTop:[-4, 0, -4], spacing:10}, //top offset of left, play, and right images, PLUS spacing between the 3 images slideduration: 500 //duration of slide up animation to reveal panel } function simpleGallery(settingarg){ this.setting=settingarg settingarg=null var setting=this.setting setting.panelheight=(parseInt(setting.navpanelheight)>5)? parseInt(setting.navpanelheight) : parseInt(simpleGallery_navpanel.panel.height) setting.fadeduration=parseInt(setting.fadeduration) setting.curimage=(setting.persist)? simpleGallery.routines.getCookie("gallery-"+setting.wrapperid) : 0 setting.curimage=setting.curimage || 0 //account for curimage being null if cookie is empty setting.preloadfirst=(!jQuery.Deferred)? false : (typeof setting.preloadfirst!="undefined")? setting.preloadfirst : true //Boolean on whether to preload all images before showing gallery setting.ispaused=!setting.autoplay[0] //ispaused reflects current state of gallery, autoplay[0] indicates whether gallery is set to auto play setting.currentstep=0 //keep track of # of slides slideshow has gone through setting.totalsteps=setting.imagearray.length*setting.autoplay[2] //Total steps limit: # of images x # of user specified cycles setting.fglayer=0, setting.bglayer=1 //index of active and background layer (switches after each change of slide) setting.oninit=setting.oninit || function(){} setting.onslide=setting.onslide || function(){} var preloadimages=[], longestdesc=null, loadedimages=0 var dfd = (setting.preloadfirst)? jQuery.Deferred() : {resolve:function(){}, done:function(f){f()}} //create real deferred object unless preloadfirst setting is false or browser doesn't support it setting.longestdesc="" //get longest description of all slides. If no desciptions defined, variable contains "" setting.$loadinggif=(function(){ //preload and ref ajax loading gif var loadgif=new Image() loadgif.src=simpleGallery_navpanel.loadinggif return jQuery(loadgif).css({verticalAlign:'middle'}).wrap('<div style="position:absolute;text-align:center;width:100%;height:100%" />').parent() })() for (var i=0; i<setting.imagearray.length; i++){ //preload slideshow images preloadimages[i]=new Image() preloadimages[i].src=setting.imagearray[i][0] if (setting.imagearray[i][3] && setting.imagearray[i][3].length>setting.longestdesc.length) setting.longestdesc=setting.imagearray[i][3] jQuery(preloadimages[i]).bind('load error', function(){ loadedimages++ if (loadedimages==setting.imagearray.length){ dfd.resolve() //indicate all images have been loaded } }) } var slideshow=this jQuery(document).ready(function($){ var setting=slideshow.setting setting.$wrapperdiv=$('#'+setting.wrapperid).css({position:'relative', visibility:'visible', background:'black', overflow:'hidden', width:setting.dimensions[0], height:setting.dimensions[1]}).empty() //main gallery DIV if (setting.$wrapperdiv.length==0){ //if no wrapper DIV found alert("Error: DIV with ID \""+setting.wrapperid+"\" not found on page.") return } setting.$gallerylayers=$('<div class="gallerylayer"></div><div class="gallerylayer"></div>') //two stacked DIVs to display the actual slide .css({position:'absolute', left:0, top:0}) .appendTo(setting.$wrapperdiv) setting.$loadinggif.css({top:setting.dimensions[1]/2-30}).appendTo(setting.$wrapperdiv) //30 is assumed height of ajax loading gif setting.gallerylayers=setting.$gallerylayers.get() //cache stacked DIVs as DOM objects setting.navbuttons=simpleGallery.routines.addnavpanel(setting) //get 4 nav buttons DIVs as DOM objects if (setting.longestdesc!="") //if at least one slide contains a description (feature is enabled) setting.descdiv=simpleGallery.routines.adddescpanel(setting) $(setting.navbuttons).filter('img.navimages').css({opacity:0.8}) .bind('mouseover mouseout', function(e){ $(this).css({opacity:(e.type=="mouseover")? 1 : 0.8}) }) .bind('click', function(e){ var keyword=e.target.title.toLowerCase() slideshow.navigate(keyword) //assign behavior to nav images }) dfd.done(function(){ //execute when all images have loaded setting.$loadinggif.remove() setting.$wrapperdiv.bind('mouseenter', function(){slideshow.showhidenavpanel('show')}) setting.$wrapperdiv.bind('mouseleave', function(){slideshow.showhidenavpanel('hide')}) slideshow.showslide(setting.curimage) //show initial slide setting.oninit.call(slideshow) //trigger oninit() event $(window).bind('unload', function(){ //clean up and persist $(slideshow.setting.navbuttons).unbind() if (slideshow.setting.persist) //remember last shown image's index simpleGallery.routines.setCookie("gallery-"+setting.wrapperid, setting.curimage) jQuery.each(slideshow.setting, function(k){ if (slideshow.setting[k] instanceof Array){ for (var i=0; i<slideshow.setting[k].length; i++){ if (slideshow.setting[k][i].tagName=="DIV") //catches 2 gallerylayer divs, gallerystatus div slideshow.setting[k][i].innerHTML=null slideshow.setting[k][i]=null } } if (slideshow.setting[k].innerHTML) //catch gallerydesctext div slideshow.setting[k].innerHTML=null slideshow.setting[k]=null }) slideshow=slideshow.setting=null }) }) //end deferred code }) //end jQuery domload } simpleGallery.prototype={ navigate:function(keyword){ clearTimeout(this.setting.playtimer) this.setting.totalsteps=100000 //if any of the nav buttons are clicked on, set totalsteps limit to an "unreachable" number if (!isNaN(parseInt(keyword))){ this.showslide(parseInt(keyword)) } else if (/(prev)|(next)/i.test(keyword)){ this.showslide(keyword.toLowerCase()) } else{ //if play|pause button var slideshow=this var $playbutton=$(this.setting.navbuttons).eq(1) if (!this.setting.ispaused){ //if pause Gallery this.setting.autoplay[0]=false $playbutton.attr({title:'Play', src:simpleGallery_navpanel.images[1]}) } else if (this.setting.ispaused){ //if play Gallery this.setting.autoplay[0]=true this.setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, this.setting.autoplay[1]) $playbutton.attr({title:'Pause', src:simpleGallery_navpanel.images[3]}) } slideshow.setting.ispaused=!slideshow.setting.ispaused } }, showslide:function(keyword){ var slideshow=this var setting=slideshow.setting var totalimages=setting.imagearray.length var imgindex=(keyword=="next")? (setting.curimage<totalimages-1? setting.curimage+1 : 0) : (keyword=="prev")? (setting.curimage>0? setting.curimage-1 : totalimages-1) : Math.min(keyword, totalimages-1) setting.gallerylayers[setting.bglayer].innerHTML=simpleGallery.routines.getSlideHTML(setting.imagearray[imgindex]) setting.$gallerylayers.eq(setting.bglayer).css({zIndex:1000, opacity:0}) //background layer becomes foreground .stop().css({opacity:0}).animate({opacity:1}, setting.fadeduration, function(){ //Callback function after fade animation is complete: clearTimeout(setting.playtimer) setting.gallerylayers[setting.bglayer].innerHTML=null //empty bglayer (previously fglayer before setting.fglayer=setting.bglayer was set below) try{ setting.onslide.call(slideshow, setting.gallerylayers[setting.fglayer], setting.curimage) }catch(e){ alert("Simple Controls Gallery: An error has occured somwhere in your code attached to the \"onslide\" event: "+e) } setting.currentstep+=1 if (setting.autoplay[0]){ if (setting.currentstep<=setting.totalsteps) setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, setting.autoplay[1]) else slideshow.navigate("play/pause") } }) //end callback function setting.gallerylayers[setting.fglayer].style.zIndex=999 //foreground layer becomes background setting.fglayer=setting.bglayer setting.bglayer=(setting.bglayer==0)? 1 : 0 setting.curimage=imgindex setting.navbuttons[3].innerHTML=(setting.curimage+1) + '/' + setting.imagearray.length if (setting.imagearray[imgindex][3]){ //if this slide contains a description setting.$descpanel.css({visibility:'visible'}) setting.descdiv.innerHTML=setting.imagearray[imgindex][3] } else if (setting.longestdesc!=""){ //if at least one slide contains a description (feature is enabled) setting.descdiv.innerHTML=null setting.$descpanel.css({visibility:'hidden'}) } }, showhidenavpanel:function(state){ var setting=this.setting var endpoint=(state=="show")? setting.dimensions[1]-setting.panelheight : this.setting.dimensions[1] setting.$navpanel.stop().animate({top:endpoint}, simpleGallery_navpanel.slideduration) if (setting.longestdesc!="") //if at least one slide contains a description (feature is enabled) this.showhidedescpanel(state) }, showhidedescpanel:function(state){ var setting=this.setting var endpoint=(state=="show")? 0 : -setting.descpanelheight setting.$descpanel.stop().animate({top:endpoint}, simpleGallery_navpanel.slideduration) } } simpleGallery.routines={ getSlideHTML:function(imgelement){ var layerHTML=(imgelement[1])? '<a href="'+imgelement[1]+'" target="'+imgelement[2]+'">\n' : '' //hyperlink slide? layerHTML+='<img src="'+imgelement[0]+'" style="border-width:0" />' layerHTML+=(imgelement[1])? '</a>' : '' return layerHTML //return HTML for this layer }, addnavpanel:function(setting){ var interfaceHTML='' for (var i=0; i<3; i++){ var imgstyle='position:relative; border:0; cursor:hand; cursor:pointer; top:'+simpleGallery_navpanel.imageSpacing.offsetTop[i]+'px; margin-right:'+(i!=2? simpleGallery_navpanel.imageSpacing.spacing+'px' : 0) var title=(i==0? 'Prev' : (i==1)? (setting.ispaused? 'Play' : 'Pause') : 'Next') var imagesrc=(i==1)? simpleGallery_navpanel.images[(setting.ispaused)? 1 : 3] : simpleGallery_navpanel.images[i] interfaceHTML+='<img class="navimages" title="' + title + '" src="'+ imagesrc +'" style="'+imgstyle+'" /> ' } interfaceHTML+='<div class="gallerystatus" style="margin-top:1px">' + (setting.curimage+1) + '/' + setting.imagearray.length + '</div>' setting.$navpanel=$('<div class="navpanellayer"></div>') .css({position:'absolute', width:'100%', height:setting.panelheight, left:0, top:setting.dimensions[1], font:simpleGallery_navpanel.panel.fontStyle, zIndex:'1001'}) .appendTo(setting.$wrapperdiv) $('<div class="navpanelbg"></div><div class="navpanelfg"></div>') //create inner nav panel DIVs .css({position:'absolute', left:0, top:0, width:'100%', height:'100%'}) .eq(0).css({background:'black', opacity:simpleGallery_navpanel.panel.opacity}).end() //"navpanelbg" div .eq(1).css({paddingTop:simpleGallery_navpanel.panel.paddingTop, textAlign:'center', color:'white'}).html(interfaceHTML).end() //"navpanelfg" div .appendTo(setting.$navpanel) return setting.$navpanel.find('img.navimages, div.gallerystatus').get() //return 4 nav related images and DIVs as DOM objects }, adddescpanel:function(setting){ setting.$descpanel=$('<div class="gallerydesc"><div class="gallerydescbg"></div><div class="gallerydescfg"><div class="gallerydesctext"></div></div></div>') .css({position:'absolute', width:'100%', left:0, top:-1000, zIndex:'1001'}) .find('div').css({position:'absolute', left:0, top:0, width:'100%'}) .eq(0).css({background:'black', opacity:simpleGallery_navpanel.panel.opacity}).end() //"gallerydescbg" div .eq(1).css({color:'white'}).end() //"gallerydescfg" div .eq(2).html(setting.longestdesc).end().end() .appendTo(setting.$wrapperdiv) var $gallerydesctext=setting.$descpanel.find('div.gallerydesctext') setting.descpanelheight=$gallerydesctext.outerHeight() setting.$descpanel.css({top:-setting.descpanelheight, height:setting.descpanelheight}).find('div').css({height:'100%'}) return setting.$descpanel.find('div.gallerydesctext').get(0) //return gallery description DIV as a DOM object }, getCookie:function(Name){ var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair if (document.cookie.match(re)) //if cookie found return document.cookie.match(re)[0].split("=")[1] //return its value return null }, setCookie:function(name, value){ document.cookie = name+"=" + value + ";path=/" } } </script> <script type="text/javascript"> var mygallery=new simpleGallery({ wrapperid: "simplegallery1", //ID of main gallery container, dimensions: [300, 200], //width/height of gallery in pixels. Should reflect dimensions of the images exactly imagearray: [ ["IMAGE LINK 1", "#", "_new", "DESCRIPTION"], ["IMAGE LINK 2", "#", "_new", "DESCRIPTION"], ["IMAGE LINK 3", "#", "_new", "DESCRIPTION"], ["IMAGE LINK 4", "#", "_new", "DESCRIPTION"], ["IMAGE LINK 5", "#", "_new", "DESCRIPTION"] ], autoplay: [true, 2000, 20], //[auto_play_boolean, delay_btw_slide_millisec, cycles_before_stopping_int] persist: false, //remember last viewed slide and recall within same session? fadeduration: 500, //transition duration (milliseconds) oninit:function(){ //event that fires when gallery has initialized/ ready to run //Keyword "this": references current gallery instance (ie: try this.navigate("play/pause")) }, onslide:function(curslide, i){ //event that fires after each slide is shown //Keyword "this": references current gallery instance //curslide: returns DOM reference to current slide's DIV (ie: try alert(curslide.innerHTML) //i: integer reflecting current image within collection being shown (0=1st image, 1=2nd etc) } }) </script> <div id="simplegallery1"></div>
·
Thay IMAGE LINK 1, 2, 3, 4, 5 thành link ảnh của bạn.
·
Thay dấu # màu đỏ là liên kết tới bài viết
hoặc trang Blog/Website bạn mong muốn.
·
Thay DESCRIPTION là mô tả cho hình ảnh
·
Để tăng hoặc giảm thời gian luân chuyển
giữa 2 ảnh kế tiếp nhau bạn thay đổi giá trị 2000 tương đương với 2 giây.
·
Để tắt chức năng tự động di chuyển qua
các ảnh bạn sửa true thành false.
·
Để thay đổi chiều rộng và chiều cao của
khung slider bạn hãy thay đổi giá trị chiều rộng 300 và chiều cao 200.
· font: 10px là cỡ chữ của phần mô tả.
·
persist: false tắt chức năng nhớ bức ảnh
cuối cùng bạn xem trước khi thoát khỏi hoặc chuyển đến bài khác để tiếp tục chạy.
Để bật thì thay persist: false thành persist: true .
·
fadeduration: 500 Thời gian chuyển đổi
thời gian tính bằng mili giây.
Đó là tất cả những gì bạn cần phải
làm.
Nếu
bạn thích bài viết này, hãy subscribe blog của tôi để thường xuyên cập nhật những
bài viết hay nhất, mới nhất qua email nhé. Cảm ơn rất nhiều. JJJ
Backlink: Luận án tốt nghiệp kinh tế
Quá trình cài đặt gặp vấn đề gì cứ
để lại Comment !
About Hong Cuong :
Theo dõi tôi trên:
 phần 2){kind=link}
0 nhận xét:
Đăng nhận xét