package Firstdroid.Tutorial.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.widget.Toast;


public class UseGps extends Activity{

/** Called when the activity is first created. */

@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

/* Use the LocationManager class to obtain GPS locations */
LocationManager mlocManager = (LocationManager)getSystemService
(Context.LOCATION_SERVICE);
LocationListener mlocListener = new MyLocationListener();
mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0,  
mlocListener);
}

/* Class My Location Listener */
public class MyLocationListener implements LocationListener{

@Override
public void onLocationChanged(Location loc){
loc.getLatitude();
loc.getLongitude();
String Text = “My current location is: “ +
“Latitud = “ + loc.getLatitude() +
“Longitud = “ + loc.getLongitude();
Toast.makeText( getApplicationContext(),
Text,
Toast.LENGTH_SHORT).show();
}

@Override
public void onProviderDisabled(String provider){
Toast.makeText( getApplicationContext(),
“Gps Disabled”,
Toast.LENGTH_SHORT ).show();
}


@Override
public void onProviderEnabled(String provider){
Toast.makeText( getApplicationContext(),
“Gps Enabled”,
Toast.LENGTH_SHORT).show();
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras){

}
}/* End of Class MyLocationListener */
}/* End of UseGps Activity */

Intent intent = new Intent();
        intent.setClassName("com.android.settings",
            "com.android.settings.widget.SettingsAppWidgetProvider");
        intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
        intent.setData(Uri.parse("3"));
        sendBroadcast(intent);
 

//verifica se gps está destivado
            String provider = Settings.Secure.getString(getContentResolver(),
                    Settings.Secure.LOCATION_PROVIDERS_ALLOWED);

            if(provider.length() == 0)
            {
                //ativa e desativa gps
                Intent intent = new Intent();
                intent.setClassName("com.android.settings",
                "com.android.settings.widget.SettingsAppWidgetProvider");
                intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
                intent.setData(Uri.parse("3"));//3 - código do gps
                sendBroadcast(intent);
            }

public void btnAlterarStatusGPSView view){
       
        Intent intent = new Intent();
        intent.setClassName("com.android.settings",
            "com.android.settings.widget.SettingsAppWidgetProvider");
        intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
        intent.setData(Uri.parse("3"));
        sendBroadcast(intent);
       
}

W/ActivityManager(61): Permission denied: checkComponentPermission() reqUid=1000