[英]How to properly display Google Map inside Bootstrap modal 3
我有以下 JavaScript 代碼可以成功地在 Google 地圖中顯示內容:
<div id="map"></div>
<script>
var customLabel = {
hs: {
label: 'house'
}
};
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: new google.maps.LatLng(-33.863276, 151.207977),
zoom: 12
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP or XML file
downloadUrl('map.php', function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName('marker');
Array.prototype.forEach.call(markers, function(markerElem) {
var id = markerElem.getAttribute('id');
var name = markerElem.getAttribute('name');
var address = markerElem.getAttribute('address');
var type = markerElem.getAttribute('type');
var point = new google.maps.LatLng(
parseFloat(markerElem.getAttribute('lat')),
parseFloat(markerElem.getAttribute('lng')));
var infowincontent = document.createElement('div');
var strong = document.createElement('strong');
strong.textContent = name
infowincontent.appendChild(strong);
infowincontent.appendChild(document.createElement('br'));
var text = document.createElement('text');
text.textContent = address
infowincontent.appendChild(text);
var icon = customLabel[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
label: icon.label,
title : 'welcome'
});
marker.addListener('click', function() {
//infoWindow.setContent(infowincontent);
infoWindow.setContent('<b>'+name + "</b><br>" + address);
infoWindow.open(map, marker);
});
});
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=api-key-goes-here&callback=initMap">
</script>
這是我的問題:當我嘗試在 bootstrap 3 模態中顯示谷歌地圖時,但單擊時模態沒有顯示任何內容。
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">show map</button>
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Display Google Map</h4>
</div>
<div class="modal-body">
<!--google map starts here-->
<div id="map"></div>
<script>
var customLabel = {
hs: {
label: 'house'
}
};
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: new google.maps.LatLng(-33.863276, 151.207977),
zoom: 12
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP or XML file
downloadUrl('map.php', function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName('marker');
Array.prototype.forEach.call(markers, function(markerElem) {
var id = markerElem.getAttribute('id');
var name = markerElem.getAttribute('name');
var address = markerElem.getAttribute('address');
var type = markerElem.getAttribute('type');
var point = new google.maps.LatLng(
parseFloat(markerElem.getAttribute('lat')),
parseFloat(markerElem.getAttribute('lng')));
var infowincontent = document.createElement('div');
var strong = document.createElement('strong');
strong.textContent = name
infowincontent.appendChild(strong);
infowincontent.appendChild(document.createElement('br'));
var text = document.createElement('text');
text.textContent = address
infowincontent.appendChild(text);
var icon = customLabel[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
label: icon.label,
title : 'welcome'
});
marker.addListener('click', function() {
//infoWindow.setContent(infowincontent);
infoWindow.setContent('<b>'+name + "</b><br>" + address);
infoWindow.open(map, marker);
});
});
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=api-key-goes-here&callback=initMap">
</script>
<!--google map ends here-->
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
它是通過為#map div 添加一個大小並通過初始化initmap()函數內的showed.bs.modal屬性來解決的
#map {
width:500px;
height:500px;
}
$("#myModal").on("shown.bs.modal", function () {initMap();});
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