编辑:已解决。在问题代码下面更正代码。
我无法让代码工作。我想要做的是使用地理位置来确定用户的位置。然后我想做一个搜索来找到字符串中的东西(在这种情况下,“Systembolaget”,在半径2000,并在谷歌地图上显示结果。我在地图上得到我自己的位置,但我是在获得场地结果方面遇到大麻烦。
我做错了什么?我没有javascript的那么多经验,所以所有帮助都是很好的帮助。
如果您对Cordova脚本感到疑惑,那么因为我正在进行手机应用程序,所以这是必要的。
<!DOCTYPE html>
<meta charset="UTF-8">
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<script src="cordova-1.6.0.js"></script>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
</style>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=MYAPIKEY&sensor=true"></script>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?libraries=places&sensor=false"></script>
<script type="text/javascript">
// Determine support for Geolocation and get location or give error
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayPosition, errorFunction);
} else {
alert('It seems like Geolocation, which is required for this page, is not enabled in your browser. Please use a browser which supports it.');
}
// Success callback function
function displayPosition(pos) {
var mylat = pos.coords.latitude;
var mylong = pos.coords.longitude;
//Load Google Map
var latlng = new google.maps.LatLng(mylat, mylong);
var myOptions = {
zoom: 16,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
// Places
var request = {
location: latlng,
radius: '2000',
name: ['Systembolaget']
};
var service = new google.maps.places.PlacesService(map);
service.search( request, callback );
function callback(results, status)
{
if (status == google.maps.places.PlacesServiceStatus.OK)
{
for ( var i = 0; i < results.length; i++ )
{
var place = results[i];
var loc = place.geometry.location;
var marker = new google.maps.Marker
({
position: new google.maps.LatLng(loc.Pa,loc.Qa)
});
marker.setMap(map);
}
}
}
var marker = new google.maps.Marker({
position: latlng,
map: map,
title:"You are here"
});
}
// Error callback function
function errorFunction(pos) {
alert('It seems like your browser or phone has blocked our access to viewing your location. Please enable this before trying again.');
}
</script>
</head>
<body>
<div id="map_canvas"></div>
</body>
解决了!正确的代码!
<!DOCTYPE html>
<meta charset="UTF-8">
<html>
<head>
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
<title name="title"></title>
<link rel="stylesheet" type="text/css" href="style.css">
<script src="cordova-1.6.0.js"></script>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?libraries=places&sensor=false"></script>
<script type="text/javascript">
// Determine support for Geolocation and get location or give error
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayPosition, errorFunction);
} else {
alert('It seems like Geolocation, which is required for this page, is not enabled in your browser. Please use a browser which supports it.');
}
// Success callback function
function displayPosition(pos) {
var mylat = pos.coords.latitude;
var mylong = pos.coords.longitude;
//Load Google Map
var latlng = new google.maps.LatLng(mylat, mylong);
var myOptions = {
zoom: 16,
center: latlng,
mapTypeId: google.maps.MapTypeId.HYBRID
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
// Places
var request = {
location: latlng,
radius: '20000',
name: ['whatever']
};
var service = new google.maps.places.PlacesService(map);
service.search( request, callback );
function callback(results, status)
{
if (status == google.maps.places.PlacesServiceStatus.OK) {
for (var i = 0; i < results.length; i++) {
var place = results[i];
createMarker(results[i]);
}
}
}
function createMarker(place) {
var placeLoc = place.geometry.location;
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location
});
}
var marker = new google.maps.Marker({
position: latlng,
map: map,
title:"You're here"
});
}
// Error callback function
function errorFunction(pos) {
alert('It seems like your browser or phone has blocked our access to viewing your location. Please enable this before trying again.');
}
</script>
</head>
<body>
<div id="map_canvas"></div>
</body>
答案 0 :(得分:2)
很难给你特别的帮助,因为你还没有真正描述你的失败方式。但我立即注意到的一件事是你似乎试图加载google.maps脚本两次,每个都有不同的sensor
信息。在您的第一个google.maps脚本标记中,您包含了必须不正确的文字文本 MYAPIKEY 。如果你在变量中有一个真正的键,我会期望像:
src="http://maps.googleapis.com/maps/api/js?key=" + MYAPIKEY + "&sensor=true"
然后在第二个脚本标记中,您似乎正确加载了位置库,但是传感器标记设置为:sensor-false
。您的第二个脚本标记对我来说更正确,因此我建议删除第一个脚本标记作为开头。
从那里,您是否可以提供有关您的网页失败的详细信息以及该网页的链接?
其他一些观察结果:
displayPosition
函数,但displayPosition
中的代码不会加载Google地图;当函数结束时,它只会创建一些超出范围的变量。displayPosition
功能之外,您创建了Google地图的新实例,但它引用了代码中此时不再存在的myOptions
,因为它只存在于范围内displayPosition
函数。我建议将与地图创建相关的代码更改为:
var map = null;
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayPosition, errorFunction);
} else {
alert('It seems like Geolocation, which is required for this page, is not enabled in your browser. Please use a browser which supports it.');
}
// Success callback function
function displayPosition(pos) {
var mylat = pos.coords.latitude;
var mylong = pos.coords.longitude;
//Load Google Map
var latlng = new google.maps.LatLng(mylat, mylong);
var myOptions = {
zoom: 16,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
}