Requesting GPS if it was not running already

src/com/elphel/sensorserver/SensorsUpdate.java

@@ -33,10 +33,15 @@ import android.hardware.SensorEvent;
 import android.hardware.SensorEventListener;
 import android.hardware.SensorManager;
 import android.location.Location;
+import android.location.LocationListener;
 import android.location.LocationManager;
+import android.os.Bundle;
 import android.util.Log;
 
 public class SensorsUpdate implements SensorEventListener{
+	private double longitude = Double.NaN;
+	private double latitude = Double.NaN;;
+
     private static String  TAG = "SENSORS";
 
 	private final Activity activity;
@@ -102,6 +107,16 @@ public class SensorsUpdate implements SensorEventListener{
 
 	public void pause() {
 		sensorManager.unregisterListener(this);
+
+    	LocationManager lm = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
+    	boolean isGPSEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
+    	if (isGPSEnabled) {
+    		lm.removeUpdates(locationListener);
+            Log.d(TAG, "Removed GPS updates");
+
+    	}
+
+
 	}
 
     private void updateOrientationAngles() {
@@ -124,20 +139,53 @@ public class SensorsUpdate implements SensorEventListener{
     }
 
     public double [] getLocation() {
-    	double longitude = Double.NaN;
-    	double latitude = Double.NaN;;
+//    	double longitude = Double.NaN;
+//    	double latitude = Double.NaN;;
 
     	try {
 	    	LocationManager lm = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
+	    	boolean isGPSEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
+	    	Log.i(TAG,"Got LocationManager: "+lm.toString()+", isGPSEnabled = "+isGPSEnabled);
 	    	Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
+	    	if (isGPSEnabled && (location == null)) {
+                Log.d(TAG, "Requested GPS Updates");
+	    		lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener);
+	    	}
+	    	Log.i(TAG,"Got Location: "+location);
 	    	longitude = location.getLongitude();
 	    	latitude = location.getLatitude();
     	} catch (Exception e) {
-    		Log.e(TAG,"Problem getting longitude/latitude");
+    		Log.e(TAG,"Problem getting longitude/latitude: "+e.toString());
     	}
     	double [] thisLocation = {longitude, latitude};
     	return thisLocation;
 
     }
+    // Should be unregistered somehow on pause?
+    private final LocationListener locationListener = new LocationListener() {
+        @Override
+		public void onLocationChanged(Location location) {
+            longitude = location.getLongitude();
+            latitude = location.getLatitude();
+        }
+
+		@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
+
+		}
+    };
 
 }