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

 

来源：https://www.cnblogs.com/chenxiangling/p/7692854.html