function showPosition() {
navigator.geolocation.getCurrentPosition(showMap, error);
}
function showMap(position) {
// Get location data
var mylatlong = position.coords.latitude + "," + position.coords.longitude;
// Set Google map source url
var mapLink = "https://maps.googleapis.com/maps/api/staticmap?center=" + mylatlong + "&size=50x50";
// Create and insert Google map
document.getElementById("embedMap").innerHTML = "<img alt='Map Holder' src='" + mapLink + "'>";
}
function error(err) {
console.warn(`ERROR(${err.code}): ${err.message}`);
}<input type="button" value="Add Map" onclick="showPosition()" />
<div id="embedMap">
<!--Google map will be embedded here-->
</div>我是Javascript和HTML的新手，目前正在测试如何获取当前位置并在单击按钮后在谷歌地图中显示它。我已经尝试过了，但我仍然无法在地图上获得我的当前位置。
应用.js
function showPosition() {
navigator.geolocation.getCurrentPosition(showMap);
}
function showMap(position) {
// Get location data
var latlong = position.coords.latitude + "," + position.coords.longitude;
// Set Google map source url
var mapLink = "https://maps.googleapis.com/maps/api/staticmap?center="+latlong+"&zoom=16&size=400x300&output=embed";
// Create and insert Google map
document.getElementById("embedMap").innerHTML = "<img alt='Google map' src='"+ mapLink +"'>";
}
索引.html
<input type="button" value="Add Map" onclick="showPosition()"/>
<div id="embedMap">
<!--Google map will be embedded here-->
</div>
如果你想通过使用JavaScript和HTML中的Geolocation来获取你当前的位置，你可能想查看Google Maps API Javascript的这个示例代码。这显示了如何使用浏览器的 HTML5 地理位置功能创建在 Google 地图上显示用户或设备的地理位置的地图。用户必须同意位置共享，否则会显示错误。阅读有关 W3C 地理位置标准的更多信息。然后，这会将您的坐标映射到由 Maps JavaScript API 创建的地图。
这里也是我制作的示例代码片段，该代码在单击"地理定位"按钮后对位置进行地理定位。请记住使用您自己的 API 密钥更改字符串YOUR_API_KEY。
<!DOCTYPE html>
<html>
<head>
<title>Geolocation</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<button id="myBtn">Geolocate</button>
<div id="map"></div>
<script>
// Note: This example requires that you consent to location sharing when
// prompted by your browser. If you see the error "The Geolocation service
// failed.", it means you probably did not give permission for the browser to
// locate you.
var map, infoWindow;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: {lat: -34.397, lng: 150.644},
zoom: 10
});
infoWindow = new google.maps.InfoWindow;
document.getElementById("myBtn").addEventListener("click", function(){
// Try HTML5 geolocation.
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = {
lat: position.coords.latitude,
lng: position.coords.longitude
};
infoWindow.setPosition(pos);
infoWindow.setContent('Location found: ' + pos.lat + ',' + pos.lng);
infoWindow.open(map);
map.setCenter(pos);
}, function() {
handleLocationError(true, infoWindow, map.getCenter());
});
} else {
// Browser doesn't support Geolocation
handleLocationError(false, infoWindow, map.getCenter());
}
});
}
function handleLocationError(browserHasGeolocation, infoWindow, pos) {
infoWindow.setPosition(pos);
infoWindow.setContent(browserHasGeolocation ?
'Error: The Geolocation service failed.' :
'Error: Your browser doesn't support geolocation.');
infoWindow.open(map);
}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
</script>
</body>
</html>
希望这有帮助！