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自動將指標添加到引導輪播

[英]Add indicators automatically to bootstrap carousel

 原文  2016-12-30 10:59:24  8   2    javascript/ jquery/ html/ css/ twitter-bootstrap

問題描述

如您所見，我在示例中有引導輪播，並且我不想在html中添加指標，我只想在js中添加以適用於每個輪播，並且我在互聯網上找到了一個函數，它的工作原理非常好，但僅適用於一個轉盤

我有兩個輪播#carousel-1和#carousel-2但我的功能僅用於#carousel-1 。我知道如果我給同一個班級，我的問題會解決，但輪播id和li.data-target 。指標li.data-target必須是相同。

如何使用js自動添加carousel-indicators以查看其指標？ 

  var myCarousel = $("#carousel-1"); myCarousel.append("<ol class='carousel-indicators'></ol>"); var indicators = $(".carousel-indicators"); myCarousel.find(".carousel-inner").children(".item").each(function(index) { (index === 0) ? indicators.append("<li data-target='#carousel-1' data-slide-to='"+index+"' class='active'></li>") : indicators.append("<li data-target='#carousel-1' data-slide-to='"+index+"'></li>"); }); $('.carousel').carousel(); 
 .carousel{ margin:20px; } 
 <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags --> <!-- Bootstrap --> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries --> <!-- WARNING: Respond.js doesn't work if you view the page via file:// --> <!--[if lt IE 9]> <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script> <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script> <![endif]--> </head> <body> <h1>SLİDER 1</h1> <!-- SLIDER 1--> <div id="carousel-1" class="carousel slide" data-ride="carousel"> <div class="carousel-inner" role="listbox"> <div class="item active"> <img src="https://cdn.pixabay.com/photo/2016/12/26/02/13/bishan-1931390_960_720.jpg" alt="..."> </div> <div class="item"> <img src="https://cdn.pixabay.com/photo/2016/12/26/15/34/simplicity-1932331_960_720.jpg" alt="..."> <div class="carousel-caption"> </div> </div> </div> <a class="left carousel-control" href="#carousel-1" role="button" data-slide="prev"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="right carousel-control" href="#carousel-1" role="button" data-slide="next"> <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div> <!-- SLIDER 1 END--> <h1>SLİDER 2</h1> <!-- SLIDER 2--> <div id="carousel-2" class="carousel slide" data-ride="carousel"> <div class="carousel-inner" role="listbox"> <div class="item active"> <img src="https://cdn.pixabay.com/photo/2016/12/26/02/13/bishan-1931390_960_720.jpg" alt="..."> </div> <div class="item"> <img src="https://cdn.pixabay.com/photo/2016/12/26/15/34/simplicity-1932331_960_720.jpg" alt="..."> <div class="carousel-caption"> </div> </div> </div> <a class="left carousel-control" href="#carousel-2" role="button" data-slide="prev"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="right carousel-control" href="#carousel-2" role="button" data-slide="next"> <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div> <!-- SLIDER 2 END--> <!-- jQuery (necessary for Bootstrap's JavaScript plugins) --> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <!-- Include all compiled plugins (below), or include individual files as needed --> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> </body> </html>

2 個解決方案

解決方案1
 5 已采納  2016-12-30 11:21:16

您可以通過這種方式使其動態。 此解決方案可以在沒有任何更改的情況下在任意數量的輪播中使用：) 

$(document).ready(function(){  
    var myCarousels = $(".carousel");
    myCarousels.each(function( index, element  ) {
        var myCarousel = $("#"+$(element).attr('id')); 
        myCarousel.append("<ol class='carousel-indicators'></ol>");
        var indicators = $("#"+$(element).attr('id') + " .carousel-indicators"); 
        $("#"+$(element).attr('id') +" .carousel-inner").children(".item").each(function(index) {
            console.log(index);
            (index === 0) ? 
            indicators.append("<li data-target='#"+$(element).attr('id')+"' data-slide-to='"+index+"' class='active'></li>") : 
            indicators.append("<li data-target='#"+$(element).attr('id')+"' data-slide-to='"+index+"'></li>");
        });
    });
});

這是工作示例： https : //jsfiddle.net/bhumi/98L5Lu4p/1/

解決方案2
 3  2016-12-30 11:08:29

function appendIndicator(carousel)
{
  var myCarousel = $(carousel);
    myCarousel.append("<ol class='carousel-indicators'></ol>");
    var indicators = $(".carousel-indicators"); 
    myCarousel.find(".carousel-inner").children(".item").each(function(index) {
        (index === 0) ? 
        indicators.append("<li data-target='"+ carousel +"' data-slide-to='"+index+"' class='active'></li>") : 
        indicators.append("<li data-target='" + carousel + "' data-slide-to='"+index+"'></li>");
    });     
}

$('.carousel').carousel();

appendIndicator('#carousel-1');
appendIndicator('#carousel-2');

演示JSFiddle

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