Check if location speed and accuracy are available.

MyTracks/src/com/google/android/apps/mytracks/MapOverlay.java

@@ -107,7 +107,9 @@ public class MapOverlay {
     public CachedLocation(Location location) {
       this.valid = LocationUtils.isValidLocation(location);
       this.latLng = valid ? new LatLng(location.getLatitude(), location.getLongitude()) : null;
-      this.speed = (int) Math.floor(location.getSpeed() * UnitConversions.MS_TO_KMH);
+      this.speed = location.hasSpeed() ? (int) Math.floor(
+          location.getSpeed() * UnitConversions.MS_TO_KMH)
+          : -1;
     }
 
     /**

MyTracks/src/com/google/android/apps/mytracks/fragments/MyTracksMapFragment.java

@@ -714,7 +714,8 @@ public class MyTracksMapFragment extends SupportMapFragment implements TrackData
           hasGoodFix = false;
         } else {
           hasFix = !LocationUtils.isLocationOld(currentLocation);
-          hasGoodFix = currentLocation.getAccuracy() <= recordingGpsAccuracy;
+          hasGoodFix = currentLocation.hasAccuracy()
+              && currentLocation.getAccuracy() < recordingGpsAccuracy;
         }
         if (!hasFix) {
           message = getString(R.string.gps_wait_for_signal);

MyTracks/src/com/google/android/apps/mytracks/fragments/StatsFragment.java

@@ -148,7 +148,8 @@ public class StatsFragment extends Fragment implements TrackDataListener {
 
             if (lastLocation != null) {
               boolean hasFix = !LocationUtils.isLocationOld(lastLocation);
-              boolean hasGoodFix = lastLocation.getAccuracy() <= recordingGpsAccuracy;
+              boolean hasGoodFix = lastLocation.hasAccuracy()
+                  && lastLocation.getAccuracy() < recordingGpsAccuracy;
 
               if (!hasFix || !hasGoodFix) {
                 lastLocation = null;

MyTracks/src/com/google/android/apps/mytracks/services/TrackRecordingService.java

@@ -888,7 +888,7 @@ public class TrackRecordingService extends Service {
         return;
       }
 
-      if (location.getAccuracy() > recordingGpsAccuracy) {
+      if (!location.hasAccuracy() || location.getAccuracy() >= recordingGpsAccuracy) {
         Log.d(TAG, "Ignore onLocationChangedAsync. Poor accuracy.");
         return;
       }

MyTracks/src/com/google/android/apps/mytracks/stats/TripStatisticsUpdater.java

@@ -192,16 +192,18 @@ public class TripStatisticsUpdater {
     currentSegment.addMovingTime(movingTime);
 
     // Update grade
-    if (lastLocation.hasAltitude() && location.hasAltitude()) {
+    if (location.hasAltitude() && lastLocation.hasAltitude()) {
       float run = lastLocation.distanceTo(location);
       double rise = location.getAltitude() - lastLocation.getAltitude();
       updateGrade(run, rise);
     }
 
     // Update max speed
-    updateSpeed(
-        location.getTime(), location.getSpeed(), lastLocation.getTime(), lastLocation.getSpeed());
-
+    if (location.hasSpeed() && lastLocation.hasSpeed()) {
+      updateSpeed(
+          location.getTime(), location.getSpeed(), lastLocation.getTime(), lastLocation.getSpeed());
+    }
+    
     lastLocation = location;
     lastMovingLocation = location;
   }