我在 HTML 中实现这个倒数计时器时遇到了一些问题。它在大多数情况下都有效,但它似乎在乞讨和 ~ i=14 时翻转。我不太确定是什么原因造成的。我认为在 svg 尝试运行之前没有设置变量,但我不确定有什么方法可以解决这个问题。
<div>
<div class="item">
<h2>0</h2>
<svg width="120" height="120" xmlns="http://www.w3.org/2000/svg">
<g>
<title>Layer 1</title>
<circle id="circle" class="circle_animation" r="56" cy="60" cx="60" stroke-width="8" stroke="#6fdb6f" fill="none"/>
</g>
</svg>
</div>
<div class="item">
<h2>0</h2>
<svg width="120" height="120" xmlns="http://www.w3.org/2000/svg">
<g>
<title>Layer 1</title>
<circle id="circle" class="circle_animation" r="56" cy="60" cx="60" stroke-width="8" stroke="#6fdb6f" fill="none"/>
</g>
</svg>
</div>
</div>
<script>
window.$ = window.jQuery = require('jquery');
setTimeout(function() {
var time = 500; /* how long the timer will run (seconds) */
var initialOffset = '351';
var i = 1;
/* Need initial run as interval hasn't yet occured... */
$('.circle_animation').css('stroke-dashoffset', initialOffset+((i)*(initialOffset/time)));
var interval = setInterval(function() {
$('h2').text(time - i);
if (i === time) {
clearInterval(interval);
return;
}
$('.circle_animation').css('stroke-dashoffset', initialOffset+((i+1)*(initialOffset/time)));
i++;
}, 1000);
}, 0)
</script>
/*css*/
.item {
position: relative;
float: left;
}
.item h2 {
text-align: center;
position: absolute;
line-height: 90px;
width: 100%;
}
svg {
-webkit-transform: rotate(-90deg);
transform: rotate(-90deg);
}
.circle_animation {
stroke-dasharray: 351;
/* stroke-width: 5px; */
/* this value is the pixel circumference of the circle */
stroke-dashoffset: 351;
transition: all 1s linear;
}
答案 0 :(得分:0)