我正在为 Cordova 2.0.0 开发。我正在 android 2.2 上测试我的应用程序。现在我得到了获取用户位置的代码，然后用标记在谷歌地图中显示它。首先我检索地理位置代码并将其显示在谷歌地图中：
> function onLoad() { document.addEventListener("deviceready",
> onDeviceReady, false); }
>
> function onDeviceReady() {
>
> }
>
> var onSuccess = function(position) {
> var myLat = position.coords.latitude;
> var myLong = position.coords.longitude;
>
>
> var mapOptions = {
> center: new google.maps.LatLng(myLat, myLong),
> zoom: 14,
> mapTypeId: google.maps.MapTypeId.ROADMAP
> };
>
> var map = new google.maps.Map(document.getElementById("map_canvas"),
> mapOptions);
>
> var marker = new google.maps.Marker({
> position: new google.maps.LatLng(myLat, myLong),
> map: map,
> title:"Hello World!"
> });
>
> };
>
>
> function onError(error) {
> alert('code: ' + error.code + '\n' +
> 'message: ' + error.message + '\n'); }
>
>
>
> navigator.geolocation.getCurrentPosition(onSuccess, onError,
> {'enableHighAccuracy':true,'timeout':10000});
现在是我的数据库的代码，我使用了来自http://docs.phonegap.com/en/2.0.0/cordova_storage_storage.md.html#Storage的示例：
> <!DOCTYPE html> <html> <head>
> <title>Storage Example</title>
> <script type="text/javascript" src="jqtouch/jquery.js" charset="utf-8"></script>
> <script type="text/javascript" src="jqtouch/jqtouch.js" charset="utf-8"></script>
> <script type="text/javascript" charset="utf-8" src="cordova-2.0.0.js"></script>
> <script type="text/javascript" charset="utf-8">
>
> // Wait for Cordova to load
> //
> document.addEventListener("deviceready", onDeviceReady, false);
>
> // Populate the database
> //
> function populateDB(tx) {
> tx.executeSql('DROP TABLE IF EXISTS DEMO');
> tx.executeSql('CREATE TABLE IF NOT EXISTS DEMO (id unique, longitude, latitude)');
> tx.executeSql('INSERT INTO DEMO (id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, longitude, latitude);
> }
>
> // Query the database
> //
> function queryDB(tx) {
> tx.executeSql('SELECT * FROM DEMO', [], querySuccess, errorCB);
> }
>
> // Query the success callback
> //
> function querySuccess(tx, results) { console.log("Returned rows = " + results.rows.length); if (!results.rowsAffected) {
> console.log('No rows affected!');
> return false; } // for an insert statement, this property will return the ID of the last inserted row console.log("Last inserted
> row ID = " + results.insertId);
> }
>
> // Transaction error callback
> function errorCB(err) {
> console.log("Error processing SQL: "+err.code);
> }
>
> // Transaction success callback
>
> function successCB() {
> var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
> db.transaction(queryDB, errorCB);
> }
>
> // Cordova is ready
> // function onDeviceReady() {
> var db = window.openDatabase("Database", "1.0", "Cordova Demo", 200000);
> db.transaction(populateDB, errorCB, successCB);
> }
>
> </script> </head> <body>
> <h1>Example</h1>
> <p>Database</p> </body> </html>
我不确定如何将从我的 GPS（地理位置）中检索到的长/纬度值放入我的数据库中。非常感谢任何教程、示例代码或建议。
我一直在想这样的事情：
> //GEOLOCATION
> var onSuccess = function(position) {
> var myLat = position.coords.latitude;
> var myLong = position.coords.longitude;
> insertEntry(latitude, longitude);
> //MAP
>
>
> function insertEntry(latitude, longitude) {
> db.transaction(
> function(populateDB) {
> tx.executeSql(
> 'INSERT INTO entries (latitude, longitude) ' +
> 'VALUES (?, ?);',
> [latitude, longitude],
> function(){
> },
> errorHandler
> );
> }
> );