我最近更新了我最近使用的PhoneGap / Cordova版本。我的应用程序中有一个页面，每次加载时都会抛出以下错误。
未捕获参考错误：Google未定义
我尝试直接从google开发人员网站上使用示例网页尝试缩小我的选项，但在尝试在手机上加载该页面时仍然遇到同样的错误。 （见https://developers.google.com/maps/documentation/javascript/examples/map-simple）。我应该注意，当我在谷歌桌面上将谷歌作为.HTML文件运行时，这个网页运行正常。
我还尝试使用此处找到的解决方案：Google Maps API throws "Uncaught ReferenceError: google is not defined" only when using AJAX
然而，甚至从未调用initialize方法，这使我相信我的脚本标记存在问题，我仍然缺少。
据我所知，我在HTML中使用了正确的脚本调用：
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?<KEY>&sensor=false"></script>
并且崩溃的javascript代码如下：
origins[0] = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
完整的代码在这里：
<!DOCTYPE HTML>
<html>
<head>
<title>MASH Locations</title>
<meta name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" />
<link rel="stylesheet" type="text/css" href="styles/layout.css" />
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript"
src="http://maps.googleapis.com/maps/api/js?key=(myAppKey)&sensor=false"></script>
<script type="text/javascript" charset="utf-8" src="Util.js"></script>
<script type="text/javascript" charset="utf-8" src="QuickSort.js"></script>
<script type="text/javascript" charset="utf-8" src="Location.js"></script>
<script type="text/javascript">
var origins, destinations;
var BORDER_ROW = '<tr><td colspan="3" class="location-result-border"> </td></tr>';
var RESULT_FORMAT = '<tr><td id="result_{7}" class="location-result-row" onclick="onLocationResultClick(\'{0}\', \'{1}\', \'{2}\', \'{3}\', \'{4}\', \'http://cloud.intelligentbits.net/mash/images/{5}\', \'{6}\')">'
+ '<table class="{8}">'
+ '<tr><td class="location-result-distance" rowspan="3"><div>{9}</div>miles</td>'
+ '<td class="location-result-logo" rowspan="3"><img src="http://sqldb.intelligentbits.net/mash/images/{5}" alt="{0}" /></td>'
+ '<td class="location-result-name">{0}</td></tr>'
+ '<tr><td class="location-result-address">{10}</td></tr>'
+ '<tr><td class="location-result-city">{11}</td></tr></table></td></tr>';
function onLoad()
{
// Wait for PhoneGap to load
document.addEventListener("deviceready", onDeviceReady, false);
}
// PhoneGap is ready
function onDeviceReady()
{
navigator.geolocation.getCurrentPosition(onPositionFound, onPositionError);
}
function onPositionFound(position)
{
// get the current location
origins = new Array();
origins[0] = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
document.getElementById('finding').innerText = 'Finding our locations...';
readFile('http://sqldb.intelligentbits.net/mash/locations.txt', onLocationsFound);
}
// onPositionError Callback receives a PositionError object
function onPositionError(error)
{
alert('code: ' + error.code + '\n' +
'message: ' + error.message + '\n');
}
function onLocationsFound(text)
{
if (text == null || text.length == 0)
{
document.getElementById('finding').innerText = 'An error occurred.';
return;
}
// split the text into lines (one line per location)
var lines = text.split(/\r?\n/g);
if (lines.length == 0)
{
document.getElementById('finding').innerText = 'An error occurred.';
return;
}
// destinations
destinations = new Array();
var locIdx = 0;
// iterate over lines/locations
for (var i = 0; i < lines.length; ++i)
{
// split into fields
var loc = new Location();
var fields = lines[i].split(';');
for (var j = 0; j < fields.length; ++j)
{
// split fields into name and value
var tokens = fields[j].split('=');
if (tokens.length != 2) continue;
switch (tokens[0].toUpperCase())
{
case 'NAME':
loc.Name = tokens[1];
break;
case 'ADDRESS':
loc.StreetAddress = tokens[1];
break;
case 'CITY':
loc.City = tokens[1];
break;
case 'STATE':
loc.Region = tokens[1];
break;
case 'POSTAL':
loc.PostalCode = tokens[1];
break;
case 'PHONE':
loc.Phone = tokens[1];
break;
case 'HOURS':
loc.Hours = tokens[1];
break;
case 'LOGO':
loc.LogoFileName = tokens[1];
break;
case 'EMAIL':
loc.Email = tokens[1];
break;
}
}
// save the destination
destinations[locIdx++] = loc;
}
if (destinations.length == 0)
document.getElementById('finding').innerText = 'An error occurred.';
else
calculateDistances(origins, destinations);
}
function calculateDistances(orig, dest) {
// the passed-in destinations are arrays of Location objects; Google Maps wants strings
var destStrings = new Array();
for (var i = 0; i < dest.length; ++i)
destStrings[i] = dest[i].ToAddressString();
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: orig,
destinations: destStrings,
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.IMPERIAL,
avoidHighways: false,
avoidTolls: false
}, onDistancesFound);
}
function onDistancesFound(response, status)
{
if (status != google.maps.DistanceMatrixStatus.OK)
{
alert('Error was: ' + status);
}
else
{
// get the place we'll store the list
var p = document.getElementById('finding');
var table = document.getElementById('location-results');
var orig = response.originAddresses;
var dest = response.destinationAddresses;
p.innerText = 'Tap a location for more options.';
// iterate over origins
for (var i = 0; i < orig.length; ++i) {
var results = response.rows[i].elements;
// iterate over destinations
for (var j = 0; j < results.length; ++j) {
// split the location into the amount and units
var distance = results[j].distance.text.Trim().split(' ');
// update the locations
destinations[j].DistanceFromUser = parseFloat(distance[0]);
destinations[j].DistanceUnits = distance[1];
destinations[j].TimeFromUser = results[j].duration.text;
}
}
// sort the distances
QuickSort(destinations, 'DistanceFromUser');
// print the results
var tablerows = '';
for (var i = 0; i < destinations.length; ++i) {
var loc = destinations[i];
tablerows += RESULT_FORMAT.Format(loc.Name, loc.Phone, loc.ToAddressString(), loc.ToTwoLineAddressString(),
loc.Hours, loc.LogoFileName, loc.Email, i, 'location-result-' + ((i + 1) % 2 == 0 ? 'even' : 'odd'),
loc.DistanceFromUser, loc.StreetAddress, loc.City);
}
tablerows += '<tr><td><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></td></tr>';
// append the rows
table.innerHTML += tablerows;
}
}
function onLocationResultClick(name, phone, address, displayAddress, hours, imageUrl, email)
{
// save the name and address to local storage for the directions
window.localStorage.setItem('location-position', address);
window.localStorage.setItem('location-address', displayAddress);
window.localStorage.setItem('location-title', name);
window.localStorage.setItem('location-hours', hours);
window.localStorage.setItem('location-phone', phone);
window.localStorage.setItem('location-imageUrl', imageUrl);
window.localStorage.setItem('location-contact', email);
// call link
window.location = 'location.html';
}
</script>
</head>
<body onload="onLoad()">
<h1>
<a href="index.html" class="back">
<div>
<span></span>
</div> <span class="text">Back</span>
</a> Nearest Locations
</h1>
<div id="location-results-wrapper">
<h1 style="position: static; width: 94%;">
<a href="#" class="back">
<div>
<span></span>
</div> <span class="text">Back</span>
</a> #
</h1>
<table id="location-results">
<tr>
<td id="finding" style="vertical-align: top;">Finding your
location...</td>
<tr>
</table>
</div>
</body>
</html>
和确切的错误日志：
06-27 09：06：00.624：E / Web Console（15020）：未捕获的ReferenceError：google未定义在file：///android_asset/www/locations.html:41
答案 0 :(得分：0)
试试这些
希望这有帮助。
答案 1 :(得分：0)
我找到了解决方案。运行PhoneGap的更新命令时，cordova.js和config.xml文件未复制到我的项目中。我不确定这是否是故意的（我很容易错过这方面的文件），但当时似乎不直观。手动将这两个文件复制到我的项目后，一切正常。
答案 2 :(得分：0)
当您使用多个HTML页面时。在主页（索引）上使用google API javascript。当刷新时，Ajax不会重新映射地图。
答案 3 :(得分：0)
如果没有定义google map api，那么它也会导致问题。 因为我从纬度和经度获取地址时错过了。