license: Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing,
     software distributed under the License is distributed on an
     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     KIND, either express or implied.  See the License for the
     specific language governing permissions and limitations

under the License.

geolocation.getCurrentPosition

Restituisce la posizione corrente del dispositivo come un Position oggetto.

navigator.geolocation.getCurrentPosition(geolocationSuccess,
                                         [geolocationError],
                                         [geolocationOptions]);

Parametri

geolocationSuccess: il callback passato alla posizione corrente.
geolocationError: (facoltativo) il callback che viene eseguito se si verifica un errore.
geolocationOptions: (opzionale) le opzioni di geolocalizzazione.

Descrizione

geolocation.getCurrentPositionè una funzione asincrona. Restituisce la posizione corrente del dispositivo per la geolocationSuccess callback con un Position oggetto come parametro. Se c'è un errore, il geolocationError callback viene passata una PositionError oggetto.

Piattaforme supportate

Android
BlackBerry WebWorks (OS 5.0 e superiori)
iOS
Tizen
Windows Phone 7 e 8
Windows 8

Esempio rapido

// onSuccess Callback
// This method accepts a Position object, which contains the
// current GPS coordinates
//
var onSuccess = function(position) {
    alert('Latitude: '          + position.coords.latitude          + '\n' +
          'Longitude: '         + position.coords.longitude         + '\n' +
          'Altitude: '          + position.coords.altitude          + '\n' +
          'Accuracy: '          + position.coords.accuracy          + '\n' +
          'Altitude Accuracy: ' + position.coords.altitudeAccuracy  + '\n' +
          'Heading: '           + position.coords.heading           + '\n' +
          'Speed: '             + position.coords.speed             + '\n' +
          'Timestamp: '         + position.timestamp                + '\n');
};

// onError Callback receives a PositionError object
//
function onError(error) {
    alert('code: '    + error.code    + '\n' +
          'message: ' + error.message + '\n');
}

navigator.geolocation.getCurrentPosition(onSuccess, onError);

Esempio completo

<!DOCTYPE html>
<html>
  <head>
    <title>Device Properties Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Wait for device API libraries to load
    //
    document.addEventListener("deviceready", onDeviceReady, false);

    // device APIs are available
    //
    function onDeviceReady() {
        navigator.geolocation.getCurrentPosition(onSuccess, onError);
    }

    // onSuccess Geolocation
    //
    function onSuccess(position) {
        var element = document.getElementById('geolocation');
        element.innerHTML = 'Latitude: '           + position.coords.latitude              + '<br />' +
                            'Longitude: '          + position.coords.longitude             + '<br />' +
                            'Altitude: '           + position.coords.altitude              + '<br />' +
                            'Accuracy: '           + position.coords.accuracy              + '<br />' +
                            'Altitude Accuracy: '  + position.coords.altitudeAccuracy      + '<br />' +
                            'Heading: '            + position.coords.heading               + '<br />' +
                            'Speed: '              + position.coords.speed                 + '<br />' +
                            'Timestamp: '          + position.timestamp                    + '<br />';
    }

    // onError Callback receives a PositionError object
    //
    function onError(error) {
        alert('code: '    + error.code    + '\n' +
              'message: ' + error.message + '\n');
    }

    </script>
  </head>
  <body>
    <p id="geolocation">Finding geolocation...</p>
  </body>
</html>