使用包含当前值的浮动DIV自定义HTML范围输入

Question

我想创建一个范围滑块，其div元素遵循范围拇指。此div元素将包含范围输入的当前值。我该怎么做这样的事情？我已经研究了滑块的样式，但不知道如何在拇指上添加实际元素。这看起来像这样，原谅我糟糕的绘画能力：

编辑：拖动滑块时应更新以下div。 更新：我有一个非常好的原型，但似乎无法让它完美地跟随滑块。它会偏离中心几个像素，具体取决于它沿着轨道的位置。 Heres my codepen

更新代码

HTML

<div id="slider-cntnr">
  <input type="range" id="frame-slider" oninput="updateFollowerValue(this.value)"/>
  <div id="slider-follow">
    <div id="slider-val-cntnr">
      <span id="slider-val"></span>
    </div>
  </div>
</div>

CSS

html, body {
  width: 100%;
  height: 100%;
}

#slider-cntnr {
  width: 50%;
  margin: 40px;
  position: relative;
}

#frame-slider {
  width: 100%;
  margin: 0;
}

#slider-follow {
  margin-left: -14px;
  background-color: black;
  width: 30px;
  height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
}

#slider-val-cntnr {
  background-color: white;
  width: 25px;
  height: 20px;
}

JS

var follower = document.getElementById('slider-follow');
var follower_val = document.getElementById('slider-val');
var slider = document.getElementById('frame-slider');

var updateFollowerValue = function(val) {
  follower_val.innerHTML = val;
  follower.style.left = val + '%';
};

updateFollowerValue(slider.value);

Answer 1

如果您不支持旧浏览器，则可以利用

<input type="range"> 

和一些JavaScript来跟随它。请参阅我的Codepen：http://codepen.io/abhisharma2/pen/wMOpqz

Answer 2

自定义output

的示例

拖动输入时正在更新。

var el, newPoint, newPlace, offset;
 
$('input[type=range]').on('input', function () {
    $(this).trigger('change');
});
// Select all range inputs, watch for change
$("input[type='range']").change(function() {

 // Cache this for efficiency
 el = $(this);
 
 // Measure width of range input
 width = el.width();
 
 // Figure out placement percentage between left and right of input
 newPoint = (el.val() - el.attr("min")) / (el.attr("max") - el.attr("min"));
  
  offset = -1;

 // Prevent bubble from going beyond left or right (unsupported browsers)
 if (newPoint < 0) { newPlace = 0; }
 else if (newPoint > 1) { newPlace = width; }
 else { newPlace = width * newPoint + offset; offset -= newPoint; }
 
 // Move bubble
 el
   .next("output")
   .css({
     left: newPlace,
     marginLeft: offset + "%"
   })
     .text(el.val());
 })
 // Fake a change to position bubble at page load
 .trigger('change');

output { 
  position: absolute;
  background-image: linear-gradient(#444444, #999999);
  width: 40px; 
  height: 30px; 
  text-align: center; 
  color: white; 
  border-radius: 10px; 
  display: inline-block; 
  font: bold 15px/30px Georgia;
  bottom: 175%;
  left: 0;
  margin-left: -1%;
}
output:after { 
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border-top: 10px solid #999999;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  margin-top: -1px;
}
form { 
  position: relative; 
  margin: 50px;
}
body {
  padding: 20px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<form>
<input type="range" name="foo" min="0" max="100">
<output for="foo" onforminput="value = foo.valueAsNumber;"></output>
</form>

<form>
<input type="range" name="foo" min="0" max="100" style="width: 300px;">
<output for="foo" onforminput="value = foo.valueAsNumber;"></output>
</form>

<form>
<input type="range" name="foo" min="0" max="100">
<output for="foo" onforminput="value = foo.valueAsNumber;"></output>
</form>

参考https://css-tricks.com/value-bubbles-for-range-inputs/

Answer 3

基本上ypu可以使用这样的东西：

重点是;

不要忘记将包装物定位为亲戚。 给你的下一个徽章绝对位置，并为中心，负边距左值作为你的徽章宽度/ 2.（如果你的徽章是50px，给予margin-left -25px）; 范围滑块必须具有100％的宽度。

HTML：

<div class="range-slider">
    <input type="range" min="0" max="100" step="1" />
    <div class="range-badge"></div>
</div>

CSS：

.range-slider{
    position: relative;
    width: 200px;
}

.range-slider > input.range{
  width: 100%;
}

.range-slider > .range-badge{
    position: absolute;
    left: 0%;
    top: 20px;
    background: #000;
    color: #fff;
    width: 20px;
    text-align: center;
    margin-left: -10px;
    padding: 5px 0;
}

JS：

$(document).ready(function(){
    var badge = $('.range-badge');

  $('.range').on('change', function(){
    var current = $(this).val();

    badge.text(current).animate({
      'left': current+'%'
    });
  });
});

在这里测试： https://jsfiddle.net/dmnzugh8/6/