使用jQuery动画Bootstrap进度条宽度

时间:2014-05-09 22:48:34

标签: javascript jquery twitter-bootstrap jquery-animate progress-bar

我希望在2.5秒内将进度条的宽度设置为0%到70%。但是,下面的代码会在2.5秒延迟后立即将宽度更改为70%。我错过了什么?

$(".progress-bar").animate({
    width: "70%"
}, 2500);

JSFiddle: http://jsfiddle.net/WEYKL/

4 个答案:

答案 0 :(得分:35)

问题在于默认的Bootstrap过渡效果,它会动画width属性的任何更新。

如果你通过压制相应的风格来关闭它,它将正常工作,例如:

.progress-bar {
    -webkit-transition: none !important;
    transition: none !important;
}

DEMO: http://jsfiddle.net/WEYKL/1/

答案 1 :(得分:4)

如果使用引导程序进度条,则非常容易

只添加atria aria-valuenow =" percent_required%"与班级进行划分"进度条"像这样:

<div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="57%" aria-valuemin="0" aria-valuemax="57">

接下来,在脚本上:

<script>
  $(document).on('ready',function(){
    $('.progress .progress-bar').css("width",function() {
      return $(this).attr("aria-valuenow") + "%";
    })
  })
</script>

重新加载,开始!

答案 2 :(得分:3)

因此,通过CSS或jQuery调整转换效果更有意义。

.progress-bar {
    -webkit-transition: width 2.5s ease;
    transition: width 2.5s ease;
}

只需更改宽度值。

$(".progress-bar").css('width', '70%');

答案 3 :(得分:0)

您可以通过添加以下内容对其进行修复:

.progress .progress-bar {
  transition: unset;
}

var delay = 500;
$(".progress-bar").each(function(i) {
  $(this).delay(delay * i).animate({
    width: $(this).attr('aria-valuenow') + '%'
  }, delay);

  $(this).prop('Counter', 0).animate({
    Counter: $(this).text()
  }, {
    duration: delay,
    // easing: 'swing',
    step: function(now) {
      $(this).text(Math.ceil(now) + '%');
    }
  });
});
.progress {
  margin-bottom: 20px;
}

.progress-bar {
  width: 0;
}

.bg-purple {
  background-color: #825CD6 !important;
}

.progress .progress-bar {
  transition: unset;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>

<div class="container">
  <h2>Bootstrap 4 Progress Bars</h2>
  <div class="progress border">
    <div class="progress-bar progress-bar-striped progress-bar-animated bg-danger" role="progressbar" aria-valuenow="70" aria-valuemin="0" aria-valuemax="100">70</div>
  </div>
  <div class="progress border">
    <div class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100">50</div>
  </div>
  <div class="progress border">
    <div class="progress-bar progress-bar-striped progress-bar-animated bg-purple" role="progressbar" aria-valuenow="90" aria-valuemin="0" aria-valuemax="100">90</div>
  </div>
</div>