双击回到顶部
左滑动
右滑动
代码展示
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><title>Gesture Example</title><style>body {margin: 0;height: 200vh;} /* 模拟长页面 */.notification {position: fixed;top: 50%;left: 50%;transform: translate(-50%, -50%);padding: 20px;background-color: rgba(0, 0, 0, 0.7);color: white;font-size: 24px;border-radius: 10px;opacity: 0;transition: opacity 0.5s ease, transform 0.5s ease;}.notification.show {opacity: 1;transform: translate(-50%, -50%) scale(1.1);}</style></head><body><div class="notification" id="notification"></div><div style="height: 30vh; background-color: rgb(178, 129, 129)"></div><div style="height: 30vh; background-color: rgb(141, 40, 40)"></div><div style="height: 30vh; background-color: rgb(135, 85, 85)"></div><div style="height: 30vh; background-color: rgb(209, 188, 188)"></div><div style="height: 30vh; background-color: rgb(203, 44, 44)"></div><script>//在dom完全加载后执行document.addEventListener("DOMContentLoaded", () => {let touchStartX = 0;let touchStartY = 0;let touchEndX = 0;let touchEndY = 0;let lastTap = 0;const notification = document.getElementById("notification");//监听开始事件document.addEventListener("touchstart", (e) => {touchStartX = e.changedTouches[0].screenX;touchStartY = e.changedTouches[0].screenY;});//监听移动事件document.addEventListener("touchmove", (e) => {touchEndX = e.changedTouches[0].screenX;touchEndY = e.changedTouches[0].screenY;});//监听结束事件document.addEventListener("touchend", () => {handleGesture();});//监听双击事件document.addEventListener("touchend", (e) => {const currentTime = new Date().getTime();const tapLength = currentTime - lastTap;if (tapLength < 300 && tapLength > 0) {// 双击事件window.scrollTo({ top: 0, behavior: "smooth" });}lastTap = currentTime;});//判断手势function handleGesture() {const deltaX = touchEndX - touchStartX;const deltaY = touchEndY - touchStartY;if (Math.abs(deltaX) > Math.abs(deltaY)) {if (deltaX > 50) {showNotification("右滑动");} else if (deltaX < -50) {showNotification("左滑动");}}}//显示通知function showNotification(message) {notification.textContent = message;notification.classList.add("show");setTimeout(() => {notification.classList.remove("show");}, 1000);}});</script></body>
</html>
)
