我正在使用webamp来显示在ArcGIS（PHP网站中的Javascript API）中创建的地图。在地图上，单击图层的点时也会显示一个弹出窗口。最近，我从4.13更新了版本4.14。更新后，弹出窗口无法正常工作。我有一个自定义的弹出模板。在对文档进行研究之后，我知道需要一个返回函数来在弹出窗口中显示自定义div。我添加了以下代码以显示我的自定义弹出窗口。
var template = { content: function(){ var div = document.createElement("div"); div.className = "myClass"; div.innerHTML = "<span>My custom content!</span>"; return div; } }
layers[layerIndex].popupTemplate = template;
现在弹出窗口看起来很好。但是我必须在弹出窗口中显示字段值。我在双括号中使用了必填字段属性，例如：{Name}。但是在最新版本中，当我使用相同的值时，字段值没有出现。
我在4.13版本中使用过的代码正在运行，
popupTemplate = {
title: "{Name}",
content: '<div id="popup_address">{Address}</div><div class="right"><div href="#" id="popupRight" class="toggle"><p onClick="openPopupDetails({FACILITYID})">+</p></div></div>' };
layers[layerIndex].popupTemplate = popupTemplate;
[请帮助我解决此问题。
谢谢。
Webmap和自定义弹出窗口的完整代码map.js
// The map classes and includ1a65d527bfd04cc180c87edf0908907bes
require([
"esri/views/MapView",
"esri/WebMap",
"esri/widgets/Search",
"esri/widgets/Zoom",
"esri/widgets/Locate"
], function(MapView, WebMap, Search, Zoom, Locate) {
var webmap = new WebMap({
portalItem: {
id: "d1ca798d8c7d4afab8983d911df8326b"
}
});
var view = new MapView({
map: webmap,
container: "map",
center: [-95.9406, 41.26],
zoom: 16,
maxZoom: 21,
minZoom: 13,
basemap: "topo",
ui: {
components: ["attribution"]
}
});
webmap
.load()
.then(function() {
return webmap.basemap.load();
})
.then(function() {
let allLayers = webmap.allLayers;
console.log(allLayers);
var promises = allLayers.map(function(layer) {
return layer.load();
});
return Promise.all(promises.toArray());
})
.then(function(layers) {
// Position of the popup in relation to the selected feature.
view.popup.alignment = "top-center";
// To disable the collapse functionality
view.popup.collapseEnabled = false;
// A spinner appear at the pointer
view.popup.spinnerEnabled = false;
// To disable the dock (The popup will be appear in bottom or any corner of the window)
view.popup.dockEnabled = false;
// Disable the pagination
view.popup.featureNavigationEnabled = false;
// Popup template details, Keep only name and address in the popup and avoid all other details
view.popup.viewModel.actions.getItemAt(0).visible = false;
// view.on("click", function(event) {
// keep a delay to align the popup and the pointer together positioned to the map center
// Add animation only if the browser not IE
// });
layers.forEach(function(popupLayers, layerIndex) {
console.log(popupLayers);
var template = {
title: "{Name}",
content: function() {
var div = document.createElement("div");
div.className = "myClass";
div.innerHTML = "<span>{Address}</span>";
return div;
}
};
layers[layerIndex].popupTemplate = template;
// popupTemplate = {
// title: "{Name}",
// content:
// '<div id="popup_address">{Address}</div><div class="right"><div href="#" id="popupRight" class="toggle"><p onClick="openPopupDetails({FACILITYID})">+</p></div></div>'
// };
// layers[layerIndex].popupTemplate = popupTemplate;
});
// To close the popup when hit on esc button
document.onkeyup = function(evt) {
var key = evt.keyCode;
if (key == 27) {
view.popup.close();
}
};
})
.catch(function(error) {
// console.log(error);
});
});
Index.php
<html>
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="initial-scale=1,maximum-scale=1,user-scalable=no"
/>
<title>Load a basic WebMap - 4.14</title>
<style>
html,
body,
#map {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<link
rel="stylesheet"
href="https://js.arcgis.com/4.14/esri/themes/light/main.css"
/>
<script src="https://js.arcgis.com/4.14/"></script>
<script src="map.js"></script>
</head>
<body>
<div id="map"></div>
</body>
</html>
我修改了代码，
for (let i = 2; i < layers.length; i++) {
var template = {
title: "{Name}",
content: function() {
var div = document.createElement("div");
div.innerHTML =
'<div id="popup_address">{Address}</div><div class="right"><div href="#" id="popupRight" class="toggle"><p onClick="openPopupDetails({FACILITYID})">+</p></div></div>';
return div;
}
};
layers[i].popupTemplate = template;
console.log(layer[i]);
}
当我应用自定义div时，{Address}部分未呈现。它看起来像{地址}本身。
我认为您有点困惑，您仍然可以使用字符串，也可以使用函数作为弹出模板的内容。因此，如果要使用功能，可以使用类似这样的内容，
popupTemplate = {
title: "{Name}",
content: popupContentChange
}
layers[layerIndex].popupTemplate = template;
function popupContentChange(feature) {
let div = document.createElement("div");
div.className = "myClass";
div.innerHTML = "<span>"+feature.graphic.attributes.Address+"</span>";
return div;
}
API文档中有几个示例，请看那里。仅参考一个，ArcGIS JavaScript API Examples - Intro to Popups
这是我为您提供的示例，以您的代码为基础，添加了一些修复程序以显示所需内容。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="initial-scale=1,maximum-scale=1,user-scalable=no"
/>
<title>Sketch Feature Coords</title>
<link
rel="stylesheet"
href="https://js.arcgis.com/4.14/esri/themes/light/main.css"
/>
<script src="https://js.arcgis.com/4.14/"></script>
<style>
html,
body,
#map {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
</style>
<script>
require([
"esri/views/MapView",
"esri/WebMap",
"esri/widgets/Search",
"esri/widgets/Zoom",
"esri/widgets/Locate"
], function(MapView, WebMap, Search, Zoom, Locate) {
var webmap = new WebMap({
portalItem: {
id: "d1ca798d8c7d4afab8983d911df8326b"
}
});
var view = new MapView({
map: webmap,
container: "map",
center: [-95.9406, 41.26],
zoom: 16,
maxZoom: 21,
minZoom: 13,
basemap: "topo",
ui: {
components: ["attribution"]
}
});
webmap
.load()
.then(function() {
return webmap.basemap.load();
})
.then(function() {
let allLayers = webmap.allLayers;
console.log(allLayers);
var promises = allLayers.map(function(layer) {
return layer.load();
});
return Promise.all(promises.toArray());
})
.then(function(layers) {
// Position of the popup in relation to the selected feature.
view.popup.alignment = "top-center";
// To disable the collapse functionality
view.popup.collapseEnabled = false;
// A spinner appear at the pointer
view.popup.spinnerEnabled = false;
// To disable the dock (The popup will be appear in bottom or any corner of the window)
view.popup.dockEnabled = false;
// Disable the pagination
view.popup.featureNavigationEnabled = false;
// Popup template details, Keep only name and address in the popup and avoid all other details
view.popup.viewModel.actions.getItemAt(0).visible = false;
// it is only going to work on the last two layers
// those are the one that have fields: Name and Address
for (let i = 2; i < layers.length; i++) {
var template = {
title: "{Name}",
content: "<span>Address: {Address}</span>"
};
layers[i].popupTemplate = template;
console.log(layer[i]);
}
// To close the popup when hit on esc button
document.onkeyup = function(evt) {
var key = evt.keyCode;
if (key == 27) {
view.popup.close();
}
};
})
.catch(function(error) {
console.log(error);
});
});
</script>
</head>
<body>
<div id="map"></div>
</body>
</html>如果要使用功能作为内容，则必须设置outFields参数以包括要在功能中使用的字段。所选功能将作为参数传递给该功能，并且在内部使用feature.graphic.attributes访问属性。这应该有效，
var template = {
title: "{Name}",
// content: "<span>Address: {Address}</span>"
content: function(feature) {
console.log(feature);
var div = document.createElement("div");
div.className = "myClass";
div.innerHTML = "<span>Address:"+feature.graphic.attributes.Address+"</span>";
return div;
},
outFields: ["Name", "Address"]
};