<animate> 从 0 开始的 SVG 偏移量不起作用

Question

动画的目的是填充背景颜色作为加载电池。解决方案似乎是我苹果渐变动画，显示为加载。但是在当前SVG中，当属性offset="0%"

时，线性梯度动画不起作用

div {
  float: left;
  width: 50%;
  padding: 10px;
  box-sizing: border-box;
}

<div>
  <p><small>offset from 0%</small> <strong>not working</strong></p>
  <svg viewBox="0 0 110 88" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="mysvg">
    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
      <g id="Group" fill="#EAEAEA">
        <rect id="Brick-4" x="77.5" y="10" width="13.5" height="68" rx="3"></rect>
        <rect id="Brick-3" x="56" y="10" width="13.5" height="68" rx="3"></rect>
        <rect id="Brick-2" x="34.5" y="10" width="13.5" height="68" rx="3"></rect>
        <rect id="Brick-1" x="13" y="10" width="13.5" height="68" rx="3"></rect>
        <path d="M104,30.2724875 C104.164709,30.2576038 104.331485,30.25 104.5,30.25 C107.537566,30.25 110,32.7220822 110,35.7458573 L110,53.1708094 C110,56.2060875 107.531385,58.6666667 104.5,58.6666667 C104.331455,58.6666667 104.164681,58.6590557 104,58.6441617 L104,82.0033234 C104,85.3151964 101.311488,88 97.9970362,88 L6.0029638,88 C2.68761844,88 0,85.3182852 0,82.0033234 L0,5.99667663 C0,2.68480358 2.68851188,0 6.0029638,0 L97.9970362,0 C101.312382,0 104,2.68171476 104,5.99667663 L104,30.2724875 L104,30.2724875 Z M5,10.991014 C5,7.68226832 7.68678744,5 11.0051618,5 L92.9948382,5 C96.3113975,5 99,7.68493655 99,10.991014 L99,77.008986 C99,80.3177317 96.3132126,83 92.9948382,83 L11.0051618,83 C7.68860254,83 5,80.3150634 5,77.008986 L5,10.991014 Z"
        fill="url(#fromzero)
        "></path>
        <defs>
          <linearGradient id="fromzero" x1="0">
            <stop offset="0%" stop-color="#4c7eaf"></stop>
            <stop offset="0%" stop-color="#828282"></stop>
            <animate attributeName="x1" dur="5s" from="0%" to="100%" repeatCount="indefinite" />
          </linearGradient>
        </defs>
      </g>
    </g>
  </svg>
</div>
<div>
  <p><small>offset from 1%</small> <strong>working</strong></p>
  <svg viewBox="0 0 110 88" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="mysvg">
    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
      <g id="Group" fill="#EAEAEA">
        <rect id="Brick-4" x="77.5" y="10" width="13.5" height="68" rx="3"></rect>
        <rect id="Brick-3" x="56" y="10" width="13.5" height="68" rx="3"></rect>
        <rect id="Brick-2" x="34.5" y="10" width="13.5" height="68" rx="3"></rect>
        <rect id="Brick-1" x="13" y="10" width="13.5" height="68" rx="3"></rect>
        <path d="M104,30.2724875 C104.164709,30.2576038 104.331485,30.25 104.5,30.25 C107.537566,30.25 110,32.7220822 110,35.7458573 L110,53.1708094 C110,56.2060875 107.531385,58.6666667 104.5,58.6666667 C104.331455,58.6666667 104.164681,58.6590557 104,58.6441617 L104,82.0033234 C104,85.3151964 101.311488,88 97.9970362,88 L6.0029638,88 C2.68761844,88 0,85.3182852 0,82.0033234 L0,5.99667663 C0,2.68480358 2.68851188,0 6.0029638,0 L97.9970362,0 C101.312382,0 104,2.68171476 104,5.99667663 L104,30.2724875 L104,30.2724875 Z M5,10.991014 C5,7.68226832 7.68678744,5 11.0051618,5 L92.9948382,5 C96.3113975,5 99,7.68493655 99,10.991014 L99,77.008986 C99,80.3177317 96.3132126,83 92.9948382,83 L11.0051618,83 C7.68860254,83 5,80.3150634 5,77.008986 L5,10.991014 Z"
        fill="url(#fromone)
        "></path>
        <defs>
          <linearGradient id="fromone" x1="0">
            <stop offset="1%" stop-color="#4c7eaf"></stop>
            <stop offset="1%" stop-color="#828282"></stop>
            <animate attributeName="x1" dur="5s" from="0%" to="100%" repeatCount="indefinite" />
          </linearGradient>
        </defs>
      </g>
    </g>
  </svg>
</div>

Answer 1

将代码更改为

<linearGradient id="fromzero" x1="0">
    <stop offset="50%" stop-color="#4c7eaf"></stop>
    <stop offset="50%" stop-color="#828282"></stop>
    <animate attributeName="x1" dur="5s" from="-100%" to="100%" repeatCount="indefinite" />
</linearGradient>

使渐变将背景色拆分为两种颜色，并将其从-100%移动到100%，从而可以从0%移动到100%，同时给予完全相同的效果。

我现在也添加了你想要的动画。点击svg元素触发。

结果如下

希望能有所帮助