Hello there! I'm trying to create a simple app to test GPS
integration. Using the emulator and geo fix commands from telnet I'm
able to get it working as expected. But installing it on a device,
when I click on the first button to start listening for updates I can
see the the GPS is active (by the small radar icon) but, moving
around, It never updates the textfields it were suppose to update.
Any ideas?
package com.furiousbob.android.gps;
import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.sax.TextElementListener;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
private boolean amIListening = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn = (Button)this.findViewById(R.id.Button01);
Button btn2 = (Button)this.findViewById(R.id.Button02);
final LocationManager lm = (LocationManager)getSystemService
(Context.LOCATION_SERVICE);
final LocationListener gpsListener = new MyGPSListener(this);
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(!amIListening){
lm.requestLocationUpdates("gps", 5000,
0, gpsListener);
amIListening = true;
}
}
});
btn2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(amIListening){
lm.removeUpdates(gpsListener);
amIListening = false;
}
}
});
}
private class MyGPSListener implements LocationListener{
private Activity activity;
public MyGPSListener(Activity parent){
this.activity = parent;
}
@Override
public void onLocationChanged(Location location) {
Double lat = location.getLatitude();
Double lon = location.getLongitude();
Double alt = location.getAltitude();
((TextView)activity.findViewById(R.id.TextView01)).setText
("Latitude: " + lat);
((TextView)activity.findViewById(R.id.TextView02)).setText
("Longitude: " + lon);
((TextView)activity.findViewById(R.id.TextView03)).setText
("Altitude: " + alt);
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle
extras) {
// TODO Auto-generated method stub
}
}
}
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