刷新google地图javascript ajax
我正在使用phonegap for android开发两个html5/javascript应用程序,它们都通过php与ajax进行通信,在这两个应用程序中,我都使用google maps api,我需要知道另一个家伙在哪里,一个在移动,另一个在等他,然后我有两个问题:刷新google地图javascript ajax,javascript,ajax,google-maps,cordova,Javascript,Ajax,Google Maps,Cordova,我正在使用phonegap for android开发两个html5/javascript应用程序,它们都通过php与ajax进行通信,在这两个应用程序中,我都使用google maps api,我需要知道另一个家伙在哪里,一个在移动,另一个在等他,然后我有两个问题: 在app1(正在移动的那个)中,我需要在地图上每隔10秒刷新一次标记,而不加载整个页面 我正在通过ajax加载,这两个应用程序的坐标都保存在mysql数据库中,因此我需要在每个地图中设置第二个标记,作为其他应用程序的位置,并每10
function getPos() {
navigator.geolocation.getCurrentPosition(onSuccess, onError, {enableHighAccuracy:true});
setTimeout(getPos, 10000); //call function after 10 seconds
}
function onSuccess(position) {
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
var currentposition = new google.maps.LatLng(lat,lon);
var mapoptions = {
zoom: 16,
center: currentposition,
mapTypeId: google.maps.MapTypeId.ROADMAP,
icon: image
};
var map = new google.maps.Map(document.getElementById("map"), mapoptions);
var marker = new google.maps.Marker({
position: currentposition,
map: map
});
save_position_in_bd();
}
function onError(error) {
console.log('code: ' + error.code, 'message: ' + error.message);
}
我通过一篇ajax帖子获得了另一个应用程序的位置:
$.ajax({
type: "POST",
url: "http://localhost/call.php",
data: "name=rui",
dataType: 'json',
success: function(data){
lat = data.lat;//get other apps lat
lon = data.lon;//get other apps lon
},
error: function(jqXHR, textStatus, errorThrown ){
console.log("POST: ", jqXHR, textStatus, errorThrown);
}
});
我能做些什么来解决我的问题?我尝试用不同的函数刷新地图,并尝试只加载标记,但不起作用。
此外,我使用的确切api是:
http://maps.googleapis.com/maps/api/js?sensor=false
解决它:
答案是将代码拆分为不同的函数,并仅调用标记,以便对其进行更新:
function getPos() {//initial function to read the position
estado = "livre";
navigator.geolocation.getCurrentPosition(onSuccess, onError, {enableHighAccuracy:true});
setTimeout(keep_alive, 10000); //read every 10 seconds
}
function onSuccess(position) {//read map and mark it in the map
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
var image = '/img/taxi_green.png';
var mapoptions = {
zoom: 16,
center: new google.maps.LatLng(lat,lon),
mapTypeId: google.maps.MapTypeId.ROADMAP,
icon: image
};
map = new google.maps.Map(document.getElementById("map"), mapoptions);
marker = new google.maps.Marker({
position: new google.maps.LatLng(lat,lon),
map: map
});
save_position();
}
function keep_alive() {//read position and mark it in the map
navigator.geolocation.getCurrentPosition(onRefresh, onError, {enableHighAccuracy:true});
save_position();
setTimeout(keep_alive, 10000); //read every 10 seconds
}
//refresh only the marker
function onRefresh(position) {
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
marker.setPosition(new google.maps.LatLng(lat, lon));//refresh marker
map.setCenter(new google.maps.LatLng(lat, lon));//resfresh center of the map
}
function trace_client() {//mark clients position in the map
//clientMarker.setPosition(new google.maps.LatLng(client_lat, client_lon));
clientMarker = new google.maps.Marker({
position: new google.maps.LatLng(client_lat,client_lon),
map: map
});
console.log("client marked in the map");
}
function onError(error) {
console.log('code: ' + error.code, 'message: ' + error.message);
}
function getPos() {//initial function to read the position
estado = "livre";
navigator.geolocation.getCurrentPosition(onSuccess, onError, {enableHighAccuracy:true});
setTimeout(keep_alive, 10000); //read every 10 seconds
}
function onSuccess(position) {//read map and mark it in the map
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
var image = '/img/taxi_green.png';
var mapoptions = {
zoom: 16,
center: new google.maps.LatLng(lat,lon),
mapTypeId: google.maps.MapTypeId.ROADMAP,
icon: image
};
map = new google.maps.Map(document.getElementById("map"), mapoptions);
marker = new google.maps.Marker({
position: new google.maps.LatLng(lat,lon),
map: map
});
save_position();
}
function keep_alive() {//read position and mark it in the map
navigator.geolocation.getCurrentPosition(onRefresh, onError, {enableHighAccuracy:true});
save_position();
setTimeout(keep_alive, 10000); //read every 10 seconds
}
//refresh only the marker
function onRefresh(position) {
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
marker.setPosition(new google.maps.LatLng(lat, lon));//refresh marker
map.setCenter(new google.maps.LatLng(lat, lon));//resfresh center of the map
}
function trace_client() {//mark clients position in the map
//clientMarker.setPosition(new google.maps.LatLng(client_lat, client_lon));
clientMarker = new google.maps.Marker({
position: new google.maps.LatLng(client_lat,client_lon),
map: map
});
console.log("client marked in the map");
}
function onError(error) {
console.log('code: ' + error.code, 'message: ' + error.message);
}
为了更容易找到,以下是问题的解决方案 答案是将代码拆分为不同的函数,并仅调用标记,以便对其进行更新:
function getPos() {//initial function to read the position
estado = "livre";
navigator.geolocation.getCurrentPosition(onSuccess, onError, {enableHighAccuracy:true});
setTimeout(keep_alive, 10000); //read every 10 seconds
}
function onSuccess(position) {//read map and mark it in the map
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
var image = '/img/taxi_green.png';
var mapoptions = {
zoom: 16,
center: new google.maps.LatLng(lat,lon),
mapTypeId: google.maps.MapTypeId.ROADMAP,
icon: image
};
map = new google.maps.Map(document.getElementById("map"), mapoptions);
marker = new google.maps.Marker({
position: new google.maps.LatLng(lat,lon),
map: map
});
save_position();
}
function keep_alive() {//read position and mark it in the map
navigator.geolocation.getCurrentPosition(onRefresh, onError, {enableHighAccuracy:true});
save_position();
setTimeout(keep_alive, 10000); //read every 10 seconds
}
//refresh only the marker
function onRefresh(position) {
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
marker.setPosition(new google.maps.LatLng(lat, lon));//refresh marker
map.setCenter(new google.maps.LatLng(lat, lon));//resfresh center of the map
}
function trace_client() {//mark clients position in the map
//clientMarker.setPosition(new google.maps.LatLng(client_lat, client_lon));
clientMarker = new google.maps.Marker({
position: new google.maps.LatLng(client_lat,client_lon),
map: map
});
console.log("client marked in the map");
}
function onError(error) {
console.log('code: ' + error.code, 'message: ' + error.message);
}
function getPos() {//initial function to read the position
estado = "livre";
navigator.geolocation.getCurrentPosition(onSuccess, onError, {enableHighAccuracy:true});
setTimeout(keep_alive, 10000); //read every 10 seconds
}
function onSuccess(position) {//read map and mark it in the map
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
var image = '/img/taxi_green.png';
var mapoptions = {
zoom: 16,
center: new google.maps.LatLng(lat,lon),
mapTypeId: google.maps.MapTypeId.ROADMAP,
icon: image
};
map = new google.maps.Map(document.getElementById("map"), mapoptions);
marker = new google.maps.Marker({
position: new google.maps.LatLng(lat,lon),
map: map
});
save_position();
}
function keep_alive() {//read position and mark it in the map
navigator.geolocation.getCurrentPosition(onRefresh, onError, {enableHighAccuracy:true});
save_position();
setTimeout(keep_alive, 10000); //read every 10 seconds
}
//refresh only the marker
function onRefresh(position) {
lat = position.coords.latitude;
lon = position.coords.longitude;
console.log("Found - LAT: ", lat, "LON: ", lon);
marker.setPosition(new google.maps.LatLng(lat, lon));//refresh marker
map.setCenter(new google.maps.LatLng(lat, lon));//resfresh center of the map
}
function trace_client() {//mark clients position in the map
//clientMarker.setPosition(new google.maps.LatLng(client_lat, client_lon));
clientMarker = new google.maps.Marker({
position: new google.maps.LatLng(client_lat,client_lon),
map: map
});
console.log("client marked in the map");
}
function onError(error) {
console.log('code: ' + error.code, 'message: ' + error.message);
}
你快到了。发生了什么事?没有发生什么?每次我刷新地图时,页面都在重新加载,我现在解决了它,我用不同的函数编写了代码,其中一个只用于更新标记,并且它工作正常。谢谢你的回复,很高兴听到你的回复。你应该把它作为一个答案提交,这样将来它可能会帮助别人。