我正在使用html 5创建一个android应用程序,并且我希望在用户移动时从用户访问latlong。我曾经使用过watchPostion,但是它给了我一次用户位置。
var watchID;
var geoLoc;
function showLocation(position) {
var latitude = position.coords.latitude;
var longitude = position.coords.longitude;
var ll=new google.maps.LatLng(latitude, longitude);
map.setCenter(ll);
console.log("Latitude : " + latitude + " Longitude: " + longitude);
}
function errorHandler(err) {
if(err.code == 1) {
console.log("Error: Access is denied!");
}else if( err.code == 2) {
console.log("Error: Position is unavailable!");
}
}
if(navigator.geolocation){
// timeout at 60000 milliseconds (60 seconds)
var options = {timeout:60000};
geoLoc = navigator.geolocation;
watchID = geoLoc.watchPosition(showLocation,
errorHandler,
options);
}else{
console.log("Sorry, browser does not support geolocation!");
}
几个月前,我一直在从事类似的工作。我记得有同样的问题。也许这会有所帮助。
$(document).ready(function(){
initLocationProcedure();
}
function initLocationProcedure() {
map = new google.maps.Map(document.getElementById('map_canvas'), {
zoom : 17
});
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(displayAndWatch, locError, {
enableHighAccuracy : true,
timeout : 60000,
maximumAge : 0
});
} else {
alert("Your phone does not support the Geolocation API");
}
}
function displayAndWatch(position) {
// set current position
setUserLocation(position);
// watch position
watchCurrentPosition();
}
function setUserLocation(pos) {
// marker for userLocation
userLocation = new google.maps.Marker({
map : map,
position : new google.maps.LatLng(pos.coords.latitude, pos.coords.longitude),
title : "You are here",
icon : "../img/user-location.svg",
// scroll to userLocation
map.panTo(new google.maps.LatLng(pos.coords.latitude, pos.coords.longitude));
});
这是您要寻找的
function watchCurrentPosition() {
var positionTimer = navigator.geolocation.watchPosition(function(position) {
setMarkerPosition(userLocation, position);
map.panTo(new google.maps.LatLng(position.coords.latitude, position.coords.longitude));
});
}
function setMarkerPosition(marker, position) {
marker.setPosition(new google.maps.LatLng(position.coords.latitude, position.coords.longitude));
console.log(position);
}
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我来说两句