geolocation.getCurrentPosition

返回設備的當前位置作為 Position 物件。

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

參數

  • geolocationSuccess： 傳遞當前位置的回檔。

  • geolocationError： （可選）如果錯誤發生時執行的回檔。

  • geolocationOptions： （可選）地理定位選項。

說明

geolocation.getCurrentPosition是一個非同步函數。 它將返回到該設備的當前位置 [geolocationSuccess](parameters/geolocationSuccess.html) 回檔與 Position 物件作為參數。 如果有錯誤， [geolocationError](parameters/geolocationError.html) 回檔通過 [PositionError](PositionError/positionError.html) 物件。

支援的平臺

  • Android 系統
  • 黑莓手機 WebWorks （OS 5.0 和更高）
  • iOS
  • Tizen
  • Windows Phone 7 和 8
  • Windows 8

快速的示例

// 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);

完整的示例

<!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>