层级设定

通过 setzIndex() 方法设置图层的层级。

源代码编辑器

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <title>图层的层级(zIndex)设定</title>
    <meta name="description" content="通过 setzIndex() 方法设置图层的层级。">
    <link rel="stylesheet" href="http://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
    <style>
        html,
        body,
        #container {
            width: 100%;
            height: 100%;
        }

        .vertical-range {
            position: relative;
            margin: 0;
            padding: 0;
            height: 220px;
            width: 75px;
        }

        .vertical-range .vertical-slider {
            position: absolute;
            width: 200px;
            transform: rotate(-90deg) translate(-50%, 0);
        }

        .vertical-range input[type="range"] {
            width: 100%;
        }

        .vertical-range p {
            position: absolute;
            writing-mode: vertical-lr;
        }

        .vertical-range span {
            color: #0288d1;
            font-size: 1.4rem;
        }

    </style>
</head>
<body>
<div id="container"></div>
<!-- 滑块 -->
<div class="input-card" style="width: auto;">
    <h4>拖动滑块调整图层 zIndex</h4>
    <div class="vertical-range">
        <div class="vertical-slider" style="left: -55px;">
            <input type="range" id="zindex-1" value="12" oninput="change1(this.value)" onchange="change1(this.value)" max="20" min="10" step="1">
        </div>
        <div class="vertical-slider" style="left: 30px;">
            <input type="range" id="zindex-2" value="18" oninput="change2(this.value)" onchange="change2(this.value)" max="20" min="10" step="1">
        </div>
        <p style="left: -10px; top: 10px;">卫星图层：<span id="z1">-</span></p>
        <p style="left: 72px; top: 10px;">道路图层：<span id="z2">-</span></p>
    </div>
</div>
<script src="http://cache.amap.com/lbs/static/es5.min.js"></script>
<script src="http://webapi.amap.com/maps?v=2.0&key=您申请的key值"></script>
<script>
    var map = new AMap.Map('container', {
        center: [116.40, 39.91],
        features: ['road', 'bg'],
        zoom: 13
    });

    var satellite = new AMap.TileLayer.Satellite({
        map: map,
        zIndex: 12,
        opacity: 0.8
    });

    var roadNetLayer = new AMap.TileLayer.RoadNet({
        map: map,
        zIndex: 18,
        opacity: 0.8
    });

    // 滑块鼠标事件
    function updateZInfo(id, val) {
        document.getElementById(id).innerText = val;
    }

    function change1(z) {
        // 设置 zIndex 属性
        satellite.setzIndex(z);
        updateZInfo('z1', z);
    }

    function change2(z) {
        // 设置 zIndex 属性
        roadNetLayer.setzIndex(z);
        updateZInfo('z2', z);
    }

    updateZInfo('z1', 12);
    updateZInfo('z2', 18);

</script>
</body>
</html>

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