我正在組織我的應用程序,我需要一些幫助將GPS座標發送到另一個將它們發送到數據庫的類。當主活動中的發送按鈕被按下時,它啓動一個開始LocationActivity的意圖。從那裏,我想將GPS座標發送到SendActivity,SendActivity將它們發送到數據庫(通過PHP程序)。如何將座標發送到SendActivity?我評論了我嘗試過的一個部分,但它不起作用。任何幫助,將不勝感激。謝謝!如何將GPS座標發送到另一個類
LocationActivity.java:
public class LocationActivity extends Activity{
private LocationManager locManager;
private LocationListener locListener;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
startLocation();
}
private void startLocation()
{
//get a reference to the LocationManager
locManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
//checked to receive updates from the position
locListener = new LocationListener() {
public void onLocationChanged(Location location) {
SendActivity.send(location); //What to do here?
}
public void onProviderDisabled(String provider){
//labelState.setText("Provider OFF");
}
public void onProviderEnabled(String provider){
//labelState.setText("Provider ON ");
}
public void onStatusChanged(String provider, int status, Bundle extras){
//Log.i("", "Provider Status: " + status);
}
};
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locListener);
}
}
SendActivity.java:
public class SendActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
void send(Location loc)
{
Log.i("", String.valueOf(loc.getLatitude() + " - " + String.valueOf(loc.getLongitude())));
String lat = String.valueOf(loc.getLatitude());
String lon = String.valueOf(loc.getLongitude());
SharedPreferences shared = getSharedPreferences("PEOPLE_PREFERENCES", MODE_PRIVATE);
final String usr_id2 = shared.getString("USR_ID", "none");
if (lat != "0" && lon != "0")
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://example.com/test/example.php");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("lat", lat));
nameValuePairs.add(new BasicNameValuePair("lon", lon));
nameValuePairs.add(new BasicNameValuePair("id", usr_id2));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
httpclient.execute(httppost);
}
catch (ClientProtocolException e) {
// TODO Auto-generated catch block
}
catch (IOException e) {
// TODO Auto-generated catch block
}
}
}
}
你在做沒有意義。 Plz認爲只是以「常規」的方式保存數據庫,而不是通過其他活動。 – Warpzit 2012-02-28 08:47:41