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拖拽移动
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| body { | |
| margin: 0; | |
| } | |
| .main { | |
| display: flex; | |
| flex-direction: column; | |
| width: 100vw; | |
| height: 100vh; | |
| } | |
| .up { | |
| display: flex; | |
| width: 100%; | |
| height: 50vh; | |
| background-color: antiquewhite; | |
| } | |
| .down { | |
| position: relative; | |
| display: flex; | |
| align-items: center; | |
| justify-content: center; | |
| width: 100%; | |
| height: 50vh; | |
| background-color: aliceblue; | |
| } | |
| .dragable { | |
| z-index: 2; | |
| display: flex; | |
| width: 100px; | |
| height: 100px; | |
| background-color: aquamarine; | |
| } | |
| .dragable.fix { | |
| z-index: 1; | |
| position: absolute; | |
| top: 50%; | |
| left: 50%; | |
| transform: translate(-50%, -50%); | |
| } | |
| .ease { | |
| transition: all 0.3s linear; | |
| } |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>touch</title> | |
| <meta name="viewport" content="width=device-width,initial-scale=1.0,user-scalable=no, minimum-scale=1.0"> | |
| <link rel="stylesheet" href="./index.css"> | |
| </head> | |
| <body> | |
| <div class="main"> | |
| <div class="up"> | |
| </div> | |
| <div class="down"> | |
| <div class="dragable"></div> | |
| <div class="dragable fix"></div> | |
| </div> | |
| </div> | |
| <script src="./index.js"></script> | |
| </body> | |
| </html> |
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| const dragableDiv = document.querySelector('.dragable') | |
| let startX | |
| let startY | |
| let translateX = 0 | |
| let translateY = 0 | |
| let translateXLast = 0 | |
| let translateYLast = 0 | |
| function touchStart(event) { | |
| event.preventDefault() | |
| if (!event.touches.length) return; | |
| let touch = event.touches[0] | |
| startX = touch.pageX; | |
| startY = touch.pageY; | |
| } | |
| function touchMove(event) { | |
| event.preventDefault(); | |
| if (!event.touches.length) return; | |
| let touch = event.touches[0] | |
| let x = touch.pageX - startX | |
| let y = touch.pageY - startY; | |
| translateX = x | |
| translateY = y | |
| dragableDiv.style.transform = `translate(${translateXLast + x}px, ${translateYLast + y}px)` | |
| } | |
| function touchEnd(event) { | |
| translateXLast += translateX | |
| translateYLast += translateY | |
| endAnimation() | |
| } | |
| function init() { | |
| dragableDiv.addEventListener('touchstart', touchStart, false) | |
| dragableDiv.addEventListener('touchmove', touchMove, false) | |
| dragableDiv.addEventListener('touchend', touchEnd, false) | |
| } | |
| function endAnimation() { | |
| dragableDiv.classList = 'dragable ease' | |
| dragableDiv.style.transform = `translate(${translateXLast}px, ${translateYLast - 200}px` | |
| dragableDiv.style.opacity = 0 | |
| setTimeout(() => { | |
| reset() | |
| }, 500) | |
| } | |
| function reset() { | |
| translateX = 0 | |
| translateY = 0 | |
| translateXLast = 0 | |
| translateYLast = 0 | |
| dragableDiv.classList = 'dragable' | |
| dragableDiv.style.transform = `translate(${0}px, ${0}px` | |
| dragableDiv.style.opacity = 1 | |
| } | |
| init() |
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