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  • 卡片翻阅

    效果如下:拖动翻阅卡片,或点击‘下一张’翻阅卡片效果

    思路:

    使用过渡样式transform和transition配合来控制卡片向前推进的过渡效果(注:透明度样式要设置在卡片的内容元素上),

    然后用js的监听触摸事件来实现拖动f效果

    示例代码:

      CSS:

    .containt{position:absolute; top:0; bottom:0; left:0; right:0; overflow:hidden;}
    ul,li{margin:0; padding:0;}
    ul{position:absolute; left:100px; right:100px; top:150px; bottom:200px;}
    ul>li{list-style:none; display:none; position:absolute; top:0; left:0; width:100%; height:100%; border-radius: 15px; overflow:hidden; box-shadow:0 20px 40px rgba(0,0,0,0.1); background:#f6f6f6; transition:.3s; -webkit-transition:.3s; cursor:pointer;}
    ul>li img{width:100%;}
    ul>li:nth-child(1){display: block; z-index:2;}
    ul>li:nth-child(2){display: block; transform:matrix(0.95,0,0,1,0,-20); -webkit-transform:matrix(0.95,0,0,1,0,-20); z-index: 1;}
    ul>li:nth-child(3){display: block; transform:matrix(0.9,0,0,1,0,-40); -webkit-transform:matrix(0.9,0,0,1,0,-40); z-index: 0;}
    ul>li>.content{height:100%; width: 100%;}
    ul>li:nth-child(2)>.content{opacity:0.9;}
    ul>li:nth-child(3)>.content{opacity:0.8;}
    .footer{position: absolute; display:flex; display:-webkit-flex; bottom:0; left:0; right:0; height:150px; -webkit-align-items:center; -webkit-justify-content:center; text-align: center;}
    .footer .button{width:80px; height:80px; line-height: 80px; background:#000; border-radius: 50%; color:#fff;}

      HTML:

      <div class="containt">
            <ul>
                <li>
                    <div class="content" background-image="">
                        <img src="http://y.gtimg.cn/music/photo_new/T001R150x150M000002J4UUk29y8BY.jpg">
                    </div>
                </li>
                <li>
                    <div class="content">
                        <img src="http://y.gtimg.cn/music/photo_new/T001R150x150M0000025NhlN2yWrP4.jpg">
                    </div>
                </li>
                <li>
                    <div class="content">
                        <img src="http://y.gtimg.cn/music/photo_new/T001R150x150M000004AlfUb0cVkN1.jpg">
                    </div>
                </li>
                <li>
                    <div class="content">
                        <img src="http://y.gtimg.cn/music/photo_new/T001R150x150M000003Nz2So3XXYek.jpg">
                    </div>
                </li>
                <li>
                    <div class="content">
                        <img src="http://y.gtimg.cn/music/photo_new/T001R150x150M000001BLpXF2DyJe2.jpg">
                    </div>
                </li>
                <li>
                    <div class="content" background-image="">
                        <img src="http://y.gtimg.cn/music/photo_new/T001R150x150M000002J4UUk29y8BY.jpg">
                    </div>
                </li>
            </ul>
            <div class="footer">
                <div class="button">下一张</div>
            </div>
        </div>

      JS:

        window.onload = function(){
            var pos = {}; //触摸点位置
            var distance_pos = {}; //触摸移动距离
            var transition; //过渡样式
            //触摸开始事件
            var touchStart = function(e){
                var event = e || event;
                var touch = event.touches[0];
                var target = event.target || event.srcElement;
                transition = target.style.transition;
                pos = {
                    x: touch.pageX,
                    y: touch.pageY
                }
                this.addEventListener('touchmove', touchMove, false);
                this.addEventListener('touchend', touchEnd, false);
            }
            //触摸移动事件
            var touchMove = function(e){
                var event = e || event;
                var touch = event.touches[0];
                if($('li').length<2){
                    alert('已经是最后一张了');
                    this.removeEventListener('touchstart', touchStart, false);
                    this.removeEventListener('touchmove', touchMove, false);
                    this.removeEventListener('touchend', touchEnd, false);
                    return false;
                }
                distance_pos = {
                    x: touch.pageX - pos.x,
                    y: touch.pageY - pos.y
                }
                this.style.transition = 'none';
                this.style.webkitTransition = 'none';
                this.style.left = `${distance_pos.x}px`;
                this.style.top = `${distance_pos.y}px`;
            }
            //触摸结束事件
            var touchEnd = function(e){
                var event = e || event;
                this.style.transition = transition;
                this.style.webkitTransition = transition;
                if(Math.abs(distance_pos.x) > Math.abs(distance_pos.y)){
                    //水平滑动
                    if(distance_pos.x < -50){
                        // 向左滑出
                        this.style.left = '-640px';
                        removeTouchEvent(this)
                    }else if (distance_pos.x > 50) {
                        // 向右滑出
                        this.style.left = '640px';
                        removeTouchEvent(this)
                    }else{
                        this.style.top = '0px';
                        this.style.left = '0px';
                    }
                }else{
                    //垂直滑动
                    if(distance_pos.y < -50){
                        // 向上滑出
                        this.style.top = '-150%';
                        removeTouchEvent(this)
                    }else if (distance_pos.y > 50) {
                        // 向下滑出
                        this.style.top = '150%';
                        removeTouchEvent(this)
                    }else{
                        this.style.top = '0px';
                        this.style.left = '0px';
                    }
                }
                this.removeEventListener('touchmove', touchMove, false);
                this.removeEventListener('touchend', touchEnd, false);
            }
            //绑定触摸监听事件
            var listenTouchEvent = function(){
                $("li")[0].addEventListener('touchstart',touchStart,false)
            }
            //解绑触摸监听事件
            var removeTouchEvent = function(el){
                 setTimeout(function(){
                    $(el).remove();
                    listenTouchEvent()
                },300)
            }
            listenTouchEvent()
            //下一张按钮点击事件
            $('.button').click(function(){
                var element = $('li')[0];
                if($('li').length<2){
                    return;
                }
                element.style.transform = 'translate(640px,0px)';
                removeTouchEvent(element);
            })
        }

    在线演示(需使用移动端浏览模式):http://sandbox.runjs.cn/show/zyswmt1j

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  • 原文地址:https://www.cnblogs.com/chenxiangling/p/7692854.html
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