I got this to work, but only after opening Google Maps app. If I open
GMaps and then hit back, re open my app, the listener start working.
Is this the expected behavior?
On Oct 21, 9:12 pm, Vinicius Carvalho <viniciusccarva...@gmail.com>
wrote:
> 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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