我想在选择的选项中显示每个国家/地区的旗帜 这是我试过的代码:
<select id="slcCountry">
<option flag="https://restcountries.eu/data/afg.svg">AFG</option>
<option flag="https://restcountries.eu/data/ala.svg">ALA</option>
<option flag="https://restcountries.eu/data/alb.svg">ALB</option>
</select>
这是显示图像的CSS
select option {
background-image: url(attr(flag));
background-repeat: no-repeat;
background-size: 30px;
background-position: 10px 6px;
width: 32px;
height: 34px;
}
如何在此处显示列表的每个图像(标记)。请帮帮我。
答案 0 :(得分:0)
首先,对于自定义属性使用html5 data attribute而不是flag attr(无效的html,)
使用简单的选择实现这一点并不容易或不可能,因此可以使用插件和一些css / js技巧,
我使用了bootstrap select,使用了bootstrap 3和jquery,结果如下:
见下面的代码:
$(function() {
$('.selectpicker').selectpicker({
size: 4
});
// selector for generated dropdonw button
var $button = $("button[data-id='slcCountry']");
//generate img for each selectpicker option
$("#slcCountry option").each(function(i, el) {
var flag = $(el).data("flag");
if (flag)
$button.next().find("li[data-original-index=" + i + "] a").css("background-image", "url(" + flag + ")");
});
//cahnge event to assign icon to selected elmen t
$("#slcCountry").on("change", function(e) {
var flag = $("#slcCountry option:selected").data("flag");
if (flag)
$button.find(".filter-option").css("background-image", "url(" + flag + ")");
else
$button.find(".filter-option").css("background-image", "url('')")
});
$('.selectpicker').trigger('change');
});
#img {
width: 200px;
height: 150px;
}
.dropdown-menu ul li a,
button[data-id='slcCountry'] .filter-option {
background-size: 25px;
background-position-y: center;
background-repeat: no-repeat;
background-position-x: 95%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.12.4/css/bootstrap-select.min.css">
<!-- Latest compiled and minified JavaScript -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.12.4/js/bootstrap-select.min.js"></script>
<select class="selectpicker" id="slcCountry">
<option data-flag="https://restcountries.eu/data/afg.svg">AFG</option>
<option data-flag="https://restcountries.eu/data/dza.svg">DZA</option>
<option data-flag="https://restcountries.eu/data/alb.svg">ALB</option>
</select>
答案 1 :(得分:0)
这是我使用jquery的解决方案:
请注意,代码段可能无效,因为:
主要webkit浏览器不支持为option元素设置背景。有关将图像放入选项的更多方法,请参阅此Q/A:
您的图片托管在https
上。
$(document).ready(function(){
$("option[flag]").each(function(){
$(this).css("background-image","url('"+ $(this).attr("flag") +"')");
})
})
select option {
background-repeat: no-repeat;
background-size: 30px;
background-position: 10px 6px;
width: 32px;
height: 34px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="slcCountry">
<option flag="https://restcountries.eu/data/afg.svg">AFG</option>
<option flag="https://restcountries.eu/data/ala.svg">ALA</option>
<option flag="https://restcountries.eu/data/alb.svg">ALB</option>
</select>