有没有办法增加两个放大器动画到一个单一的div？

Question

这是我的代码，在body标记中，如docs中所指定的：

   <amp-animation layout="nodisplay" trigger="visibility">
    <script type="application/json">
        [
            {
                "selector": ".shape-3",
                "duration": 1000,
                "delay": 0,
                "keyframes": "buildInKeyframes",
                "fill": "both",
                "direction": "normal"
            },
            {
                "selector": ".shape-3",
                "duration": 1000,
                "delay": 1200,
                "keyframes": "buildOutKeyframes",
                "fill": "both",
                "direction": "normal"
            }

        ]
    </script>
    </amp-animation>

(在head标签中，我有用标签样式和自定义定义的关键帧)我有一个带有class=“first 3”的div，我想用第一个动画来动画它，在它完成之后，用第二个动画来动画。问题是

Answer 1

您可以尝试以下列方式使用动画：

<amp-animation layout="nodisplay">
  <script type="application/json">
    {
      "selector": ".shape-3",
      "duration": "1s",
      "iterations": "1",
      "fill": "both",
      "direction": "alternate",
      "animations": [
        {
          "selector": ".target-class",
          "easing": "cubic-bezier(0,0,.21,1)",
          "keyframes": {
            "transform": "rotate(20deg)"
          }
        },
        {
          "delay": "1s",
          "easing": "cubic-bezier(0,0,.21,1)",
          "keyframes": {
            "transform": "rotate(30deg)"
          }
        }
      ]
    }
  </script>
</amp-animation>

其中，第二动画的延迟是用于第一次动画的时间。