前言

關於本篇功能實現用到的 api 涉及類看不懂的，請參照 esri 官網的 arcgis api 3.x for js：esri 官網 api，里面詳細的介紹 arcgis api 3.x 各個類的介紹，還有就是在線例子：esri 官網在線例子，這個也是學習 arcgis api 3.x 的好素材。

由於 arcgis api 3.x for js 目前沒有 GeojsonLayer， arcgis api 4.x 最新版本目前是支持了的，並且 arcgis api 3.x 提供的 Popup默認只可以彈出一個，某些情況下，用戶想加載彈出多個窗口，我一直看看能不能有什么途徑，比如 arcgis api 3.x 拓展之類的，對其進行改造達到繪制 Geojson 並同時彈出多個 Popup 的目的。

最終實現效果圖：

實現思路

html 頁面以及引用 js 以及 css

<head>
<title>地圖展示多氣泡窗口例子</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9">
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
<!-- ArcGIS API for JavaScript CSS-->
<link rel="stylesheet" href="https://js.arcgis.com/3.28/esri/css/esri.css">
<!-- Web Framework CSS - Bootstrap (getbootstrap.com) and Bootstrap-map-js (github.com/esri/bootstrap-map-js) -->
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"/>
<!-- PopExtendCss -->
<link href="./vendor/ncam/PopupExtended.css" rel="stylesheet" />
 
<style>
html, body, #mapDiv {
height: 100%;
width: 100%;
box-sizing: content-box;
}
.buttonRight{
position: absolute;
z-index: 999;
}
.hzLine{
border: none;
border-top: 1px solid #333333;
margin-top: 6px;
margin-bottom: 6px;
}
.popupTitle{
font-size: 18px;
}
.popupContent{
font-size: 15px;
}
.esriPopup.light .titleButton.close, .esriPopup.dark .titleButton.close {
margin-top: -5px;
}
.esriPopup.light .titleButton.maximize, .esriPopup.dark .titleButton.maximize {
display:none;
}
</style>
<!-- ArcGIS API for JavaScript library references -->
<script>
var dojoConfig = {
parseOnLoad: false,
async: true,
tlmSiblingOfDojo: false,
packages: [{
name: "ncam",
location: location.pathname.replace(/\/[^/]+$/, '') + "ncam"
}]
};
</script>
<!-- ArcGIS API for JavaScript library references -->
<script src="https://js.arcgis.com/3.28/"></script>
 
<!-- Terraformer reference -->
<script src="./vendor/terraformer/terraformer.min.js"></script>
<script src="./vendor/jquery.js"></script>
<script src="./vendor/terraformer-arcgis-parser/terraformer-arcgis-parser.min.js"></script>
</head>
<body>
<div id="mapDiv"></div>
<button id="shanghaiPoint" class="btn btn-default buttonRight" style="top:20px;right:20px">餐飲店</button>
</body>
</html>

geojson 模擬數據

{
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"properties": {
"Id": 0,
"name": "滿口香粥店",
"address": "(0411)82812888-3806",
"phone": "遼寧省大連市xx路"
},
"geometry": {
"type": "Point",
"coordinates": [122.96626809999999, 39.693737519999999]
}
}, {
"type": "Feature",
"properties": {
"Id": 1,
"name": "源惠居酒屋",
"address": "(0411)82812888-3806",
"phone": "遼寧省大連市xx路"
},
"geometry": { "type": "Point", "coordinates": [122.9597131, 39.698272490000001] }
}, {
"type": "Feature",
"properties": {
"Id": 2 ,
"name": "鳴記碳火烤全魚",
"address": "(0411)82812888-3806",
"phone": "遼寧省大連市xx路"
},
"geometry": { "type": "Point", "coordinates": [122.9597627, 39.699162139999999] }
}, {
"type": "Feature",
"properties": {
"Id": 3,
"name": "華陽酒店",
"address": "(0411)82812888-3806",
"phone": "遼寧省大連市xx路"
},
"geometry": { "type": "Point", "coordinates": [122.9597626, 39.699911970000002]}
}, {
"type": "Feature",
"properties": {
"Id": 4,
"name": "翔宇餡餅粥吧庄河店",
"address": "(0411)82812888-3806",
"phone": "遼寧省大連市xx路"
},
"geometry": { "type": "Point", "coordinates": [122.9576213, 39.698847499999999] }
}, {
"type": "Feature",
"properties": {
"Id": 5,
"name": "鑫來閣川菜館",
"address": "(0411)82812888-3806",
"phone": "遼寧省大連市xx路"
},
"geometry": { "type": "Point", "coordinates": [122.96235280000001, 39.698096040000003] }
}]
}

核心 geojsonlayer.js 並且集成 Popupextended 拓展代碼
自定義一個類，繼承 GraphicsLayer：

define([
"dojo/_base/declare",
"esri/dijit/PopupTemplate",
"./vendor/ncam/PopupExtended.js",
"esri/graphic",
"esri/layers/GraphicsLayer",
"esri/InfoTemplate",
"esri/graphicsUtils",
"esri/Color",
"esri/symbols/SimpleMarkerSymbol",
"esri/symbols/SimpleLineSymbol",
"esri/symbols/SimpleFillSymbol",
"esri/renderers/SimpleRenderer",
"esri/SpatialReference",
"esri/geometry/webMercatorUtils",
"esri/request",
"esri/config",
"dojo/_base/url",
"dojo/_base/lang"
], function (declare,PopupTemplate, PopupExtended, Graphic, GraphicsLayer, InfoTemplate, graphicsUtils, Color, SimpleMarkerSymbol,
SimpleLineSymbol, SimpleFillSymbol, SimpleRenderer, SpatialReference, webMercatorUtils, esriRequest, esriConfig, Url, lang
) {
return declare([GraphicsLayer], {
});
});

構造函數自定義 Popup 窗口拓展進來

constructor: function (options) {
if (options.infoTemplate !== false) {
//create a PopupTemplate
var template = new PopupTemplate({
title: "{name}",
//fieldInfos: [
// { fieldName: "name", visible: true },
// { fieldName: "address", visible: true},
// { fieldName: "phone", visible: true}
//],
extended: {
//actions: [
// { text: " IconText", className: "iconText", title: "Custom action with an icon and Text", click: function (feature) { alert("Icon Text clicked on " + "id: " + feature.attributes.id + " " + feature.attributes.name); } },
// { text: "", className: "iconOnly", title: "Custom action only using an icon", click: function (feature) { alert("Icon action clicked on " + "id: " + feature.attributes.id + " " + feature.attributes.name); } }
//],
//uses a pretty bad custom theme defined in PopupExtended.css.
scaleSelected: 1.6
}
});
……

完整demo源碼見小專欄文章尾部：GIS之家小專欄

文章尾部提供源代碼下載，對本專欄感興趣的話，可以關注一波

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