Make sure you add the line
<permission android:name="android.permission.ACCESS_FINE_LOCATION"></
uses-permission>
to your AndroidManifest.xml file and you have enabled GPS satellites
on your handset (won't work otherwise).
Then try this:
public class GPSTest extends Activity {
private TextView text;
private LocationManager manager;
private LocationListener listener;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
text = (TextView)findViewById(R.id.Text);
manager = (LocationManager) getSystemService
(Context.LOCATION_SERVICE);
Location myLocation = manager.getLastKnownLocation("gps");
text.setText(("Lat: " + myLocation.getLatitude()
+ "\nLLong: " + myLocation.getLongitude()));
listener = new MyLocationListener();
manager.requestLocationUpdates("gps" ,10000L, 10.0f,
listener);
}
private class MyLocationListener implements LocationListener{
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
if (location != null){
text.setText(("Lat: " + location.getLatitude()
+ "\nLLong: " + location.getLongitude()));
}
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status,
Bundle extras) {
// TODO Auto-generated method stub
}
}
}
On Sep 4, 8:49 am, Xster <[email protected]> wrote:
> Hi,
>
> I'm trying to start a GPS program and I'm just trying out the first
> step to display coordinates as they change.
>
> I followedhttp://www.devx.com/wireless/Article/39239and used the
> LocationManager and LocationListener classes.
>
> Code:
> public class GPSTest extends Activity {
> /** Called when the activity is first created. */
>
> private TextView text;
> private LocationManager manager;
> private LocationListener listener;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.main);
>
> text = (TextView) findViewById(R.id.Text);
>
> manager = (LocationManager) getSystemService
> (Context.LOCATION_SERVICE);
> listener = new MyLocationListener();
> manager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
> 0, 0, listener);
> }
>
> private class MyLocationListener implements LocationListener{
>
> public void onLocationChanged(Location location) {
> // TODO Auto-generated method stub
> if (location != null){
> text.setText(text.getText() + "\n" +
> location.getLatitude() + ", "
> + location.getLongitude() + " - " + location.getAccuracy());
> }
> }
>
> public void onProviderDisabled(String provider) {
> // TODO Auto-generated method stub
>
> }
>
> public void onProviderEnabled(String provider) {
> // TODO Auto-generated method stub
>
> }
>
> public void onStatusChanged(String provider, int status,
> Bundle
> extras) {
> // TODO Auto-generated method stub
>
> }
>
> }
>
> }
>
> However, once I run the code on the phone, the GPS icon is seen
> flashing but nothing happens. The method onLocationChanged is never
> reached (according to breakpoints). What am I doing wrong?
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