手機上的按鈕保持焦點或活動狀態,導致CSS動畫出現問題
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P粉043295337 2023-08-28 15:14:37
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<p>我正在嘗試在每次點擊按鈕時實現動畫效果,它在桌面上運行良好,但在手機上無法實現相同效果。我必須先點擊按鈕,然後點擊其他地方以取消CSS的焦點狀態,然後再次點擊按鈕以獲得動畫效果。 </p> <p>以下是程式碼片段。 </p> <p> <pre class="brush:css;toolbar:false;">.btn_container { color: #35f8ff; position: relative; display: inline-block; text-align: center; margin: 2.5rem auto; } .prog_btn { text-transform: uppercase; font-size: 1.3rem; padding: 10px 25px; z-index: 3; background-color: transparent; cursor: pointer; transition: 0.2s ease-out; position: relative; margin: auto; } .btn_container .svgStroke { position: absolute; z-index: 1; width: 100%; top: -25%; left: 0; } .btn_container .svgStroke path { stroke-dasharray: 100; stroke-dashoffset: -800; stroke-width: 2; transition: all 1s ease-in-out; stroke: #35f8ff; } @keyframes dash { 0% { stroke-dasharray: 100; stroke-width: 2; } 50% { stroke-width: 4; stroke: #35f8ff; filter: drop-shadow(0px 0px 3px #e8615a) drop-shadow(0px 0px 20px #35f8ff) drop-shadow(0px 0px 150px #35f8ff); } 100% { stroke-dashoffset: 800; stroke-width: 2; } } .prog_btn:hover .svgStroke path { cursor: pointer; animation: dash 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); } .prog_btn:hover { font-size: 1.2rem; } .add { display: inline-block; margin-right: 0.75rem; height: 1.5rem; width: 1.5rem; }</pre> <pre class="brush:html;toolbar:false;"><div class="btn_container"> <div class="prog_btn"> <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="add" > <path stroke-linecap="round" stroke-linejoin="round" d="M12 4.5v15m7.5-7.5h-15" ></path> </svg> Add 10% </div> <svg class="svgStroke" width="222" height="65" viewBox="0 0 222 85" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M205 84H21L1 63.4941V18.5765L21 1H205L221 18.5765V63.4941L205 84Z" stroke="white" stroke-width="2" ></path> </svg> </div></pre> </p> <p>這裡還有CodePen連結。 </p>
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我希望在動畫結束時能夠取消焦點(即模糊),但這沒有起作用。

這是一個稍微笨拙的解決方法 - 這個片段在動畫結束時移除了動畫,並在有另一個touchstart事件時重新設定動畫。它使用的是樣式設定而不是類別。

let touchDevice = false;
const progBtn = document.querySelector('.prog_btn');
const path = document.querySelector('.prog_btn +.svgStroke path');
path.addEventListener('animationend', function() {
  path.style.animation = '';
});
progBtn.addEventListener('touchstart', function() {
  touchDevice = true;
  path.style.animation = 'dash 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94)';
});
progBtn.addEventListener('mouseover', function() {
  path.style.animation = 'dash 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94)';
});
.btn_container {
  color: #35f8ff;
  position: relative;
  display: inline-block;
  text-align: center;
  margin: 2.5rem auto;
}

.prog_btn {
  text-transform: uppercase;
  font-size: 1.3rem;
  padding: 10px 25px;
  z-index: 3;
  background-color: transparent;
  cursor: pointer;
  transition: 0.2s ease-out;
  position: relative;
  margin: auto;
}

.btn_container .svgStroke {
  position: absolute;
  z-index: 1;
  width: 100%;
  top: -25%;
  left: 0;
}

.btn_container .svgStroke path {
  stroke-dasharray: 100;
  stroke-dashoffset: -800;
  stroke-width: 2;
  transition: all 1s ease-in-out;
  stroke: #35f8ff;
}

@keyframes dash {
  0% {
    stroke-dasharray: 100;
    stroke-width: 2;
  }
  50% {
    stroke-width: 4;
    stroke: #35f8ff;
    filter: drop-shadow(0px 0px 3px #e8615a) drop-shadow(0px 0px 20px #35f8ff) drop-shadow(0px 0px 150px #35f8ff);
  }
  100% {
    stroke-dashoffset: 800;
    stroke-width: 2;
  }
}

.prog_btn:hover+.svgStroke path {
  cursor: pointer;
}

.prog_btn:hover {
  font-size: 1.2rem;
}

.add {
  display: inline-block;
  margin-right: 0.75rem;
  height: 1.5rem;
  width: 1.5rem;
}
<div class="btn_container">
  <div class="prog_btn">
    <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="add">
      <path
        stroke-linecap="round"
        stroke-linejoin="round"
        d="M12 4.5v15m7.5-7.5h-15"
      ></path>
    </svg> 添加 10%
  </div>
  <svg class="svgStroke" width="222" height="65" viewBox="0 0 222 85" fill="none" xmlns="http://www.w3.org/2000/svg">
    <path
      d="M205 84H21L1 63.4941V18.5765L21 1H205L221 18.5765V63.4941L205 84Z"
      stroke="white"
      stroke-width="2"
    ></path>
  </svg>
</div>
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