Fixing some nits from static analysis.

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

@@ -593,7 +593,7 @@ public class ChartView extends View {
 
       final float x = getWaypointX(waypoint);
       c.drawLine(x, h - bottomBorder, x, topBorder, gridPaint);
-      c.translate(x - markerWidth / 2, markerHeight);
+      c.translate(x - (float) markerWidth / 2.0f, (float) markerHeight);
       if (waypoints.get(i).getType() == Waypoint.TYPE_STATISTICS) {
         statsMarker.draw(c);
       } else {

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

@@ -15,6 +15,8 @@
  */
 package com.google.android.apps.mytracks;
 
+import static com.google.android.apps.mytracks.Constants.TAG;
+
 import com.google.android.apps.mytracks.content.Waypoint;
 import com.google.android.apps.mytracks.util.LocationUtils;
 import com.google.android.maps.GeoPoint;
@@ -33,6 +35,7 @@ import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.location.Location;
+import android.util.Log;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -71,7 +74,7 @@ public class MapOverlay extends Overlay {
   private GeoPoint lastReferencePoint;
   private Rect lastViewRect;
   private Path lastPath;
-  
+
   /**
    * Represents a pre-processed {@code Location} to speed up drawing.
    * This class is more like a data object and doesn't provide accessors.
@@ -93,13 +96,13 @@ public class MapOverlay extends Overlay {
      */
     public CachedLocation(Location location) {
       this.valid = LocationUtils.isValidLocation(location);
-      this.geoPoint = valid ? LocationUtils.getGeoPoint(location) : null; 
+      this.geoPoint = valid ? LocationUtils.getGeoPoint(location) : null;
     }
   };
 
   public MapOverlay(Context context) {
     this.context = context;
-    
+
     this.waypoints = new ArrayList<Waypoint>();
     this.points = new ArrayList<CachedLocation>(1024);
     this.pendingPoints = new ArrayBlockingQueue<CachedLocation>(
@@ -164,7 +167,7 @@ public class MapOverlay extends Overlay {
 
   /**
    * Add a location to the map overlay.
-   * 
+   *
    * NOTE: This method doesn't take ownership of the given location, so it is
    * safe to reuse the same location while calling this method.
    *
@@ -172,14 +175,18 @@ public class MapOverlay extends Overlay {
    */
   public void addLocation(Location l) {
     // Queue up in the pending queue until it's merged with {@code #points}.
-    pendingPoints.offer(new CachedLocation(l));
+    if (!pendingPoints.offer(new CachedLocation(l))) {
+      Log.e(TAG, "Unable to add pending points");
+    }
   }
 
   /**
    * Adds a segment split to the map overlay.
    */
   public void addSegmentSplit() {
-    pendingPoints.offer(new CachedLocation());
+    if (!pendingPoints.offer(new CachedLocation())) {
+      Log.e(TAG, "Unable to add pending points");
+    }
   }
 
   public void addWaypoint(Waypoint wpt) {
@@ -203,7 +210,7 @@ public class MapOverlay extends Overlay {
       return waypoints.size();
     }
   }
-  
+
   public void clearPoints() {
     synchronized (points) {
       points.clear();
@@ -238,7 +245,7 @@ public class MapOverlay extends Overlay {
     // Get the current viewing window.
     if (trackDrawingEnabled) {
       Rect viewRect = getMapViewRect(mapView);
-      
+
       // Draw the selected track:
       drawTrack(canvas, projection, viewRect);
 
@@ -249,12 +256,12 @@ public class MapOverlay extends Overlay {
     // Draw the current location
     drawMyLocation(canvas, projection);
   }
-  
+
   // Visible for testing.
   Projection getMapProjection(MapView mapView) {
     return mapView.getProjection();
   }
-  
+
   // Visible for testing.
   Rect getMapViewRect(MapView mapView) {
     int w = mapView.getLongitudeSpan();
@@ -263,12 +270,12 @@ public class MapOverlay extends Overlay {
     int cy = mapView.getMapCenter().getLatitudeE6();
     return new Rect(cx - w / 2, cy - h / 2, cx + w / 2, cy + h / 2);
   }
-  
+
   // Visible for testing.
   Path newPath() {
     return new Path();
   }
-  
+
   // Visible for testing.
   Path getLastPath() {
     return lastPath;
@@ -304,9 +311,9 @@ public class MapOverlay extends Overlay {
     synchronized (points) {
       // Merge the pending points with the list of cached locations.
       final GeoPoint referencePoint = projection.fromPixels(0, 0);
-      int newPoints = pendingPoints.drainTo(points); 
+      int newPoints = pendingPoints.drainTo(points);
       boolean newProjection = !viewRect.equals(lastViewRect) ||
-          !referencePoint.equals(lastReferencePoint); 
+          !referencePoint.equals(lastReferencePoint);
       if (newPoints == 0 && lastPath != null && !newProjection) {
         // No need to recreate path (same points and viewing area).
         path = lastPath;
@@ -318,12 +325,12 @@ public class MapOverlay extends Overlay {
         } else if (lastPath != null && !newProjection) {
           // Incremental update of the path, without repositioning the view.
           path = lastPath;
-          updatePath(projection, viewRect, path, numPoints - newPoints); 
+          updatePath(projection, viewRect, path, numPoints - newPoints);
         } else {
           // The view has changed so we have to start from scratch.
           path = newPath();
           path.incReserve(numPoints);
-          updatePath(projection, viewRect, path, 0); 
+          updatePath(projection, viewRect, path, 0);
         }
         lastPath = path;
       }
@@ -344,7 +351,7 @@ public class MapOverlay extends Overlay {
         }
       }
     }
-    
+
     // Draw the "Start" marker.
     for (int i = 0; i < points.size(); ++i) {
       if (points.get(i).valid) {
@@ -354,7 +361,7 @@ public class MapOverlay extends Overlay {
       }
     }
   }
-  
+
   private void updatePath(Projection projection, Rect viewRect, Path path,
       int startLocationIdx) {
     // Whether to start a new segment on new valid and visible point.
@@ -370,7 +377,7 @@ public class MapOverlay extends Overlay {
         newSegment = true;
         continue;
       }
-      
+
       final GeoPoint geoPoint = loc.geoPoint;
       // Check if this breaks the existing segment.
       boolean visible = alwaysVisible || viewRect.contains(
@@ -380,7 +387,7 @@ public class MapOverlay extends Overlay {
         newSegment = true;
       }
       lastVisible = visible;
-      
+
       // Either move to beginning of a new segment or continue the old one.
       projection.toPixels(geoPoint, pt);
       if (newSegment) {
@@ -391,7 +398,7 @@ public class MapOverlay extends Overlay {
       }
     }
   }
-  
+
   // Visible for testing.
   Point drawElement(Canvas canvas, Projection projection, GeoPoint geoPoint,
       Drawable element, int offsetX, int offsetY) {

MyTracks/src/com/google/android/apps/mytracks/io/SendToFusionTables.java

@@ -644,7 +644,7 @@ public class SendToFusionTables implements Runnable {
     // to fit the completion percentage range alloted to track data upload.
     double totalPercentage =
         (totalLocationsRead + totalLocationsPrepared + totalLocationsUploaded)
-        / (totalLocations * 3);
+        / (totalLocations * 3.0);
 
     double scaledPercentage = totalPercentage
         * (PROGRESS_UPLOAD_DATA_MAX - PROGRESS_UPLOAD_DATA_MIN) + PROGRESS_UPLOAD_DATA_MIN;

MyTracks/src/com/google/android/apps/mytracks/io/backup/ExternalFileBackup.java

@@ -15,6 +15,8 @@
  */
 package com.google.android.apps.mytracks.io.backup;
 
+import static com.google.android.apps.mytracks.Constants.TAG;
+
 import com.google.android.apps.mytracks.Constants;
 import com.google.android.apps.mytracks.content.TrackPointsColumns;
 import com.google.android.apps.mytracks.content.TracksColumns;
@@ -205,7 +207,9 @@ class ExternalFileBackup {
     } catch (IOException e) {
       // We tried to delete the partially created file, but do nothing
       // if that also fails.
-      outputFile.delete();
+      if (!outputFile.delete()) {
+        Log.w(TAG, "Failed to delete file " + outputFile.getAbsolutePath());
+      }
 
       throw e;
     } finally {

MyTracks/src/com/google/android/apps/mytracks/io/file/TempFileCleaner.java

@@ -1,12 +1,12 @@
 /*
  * Copyright 2010 Google Inc.
- * 
+ *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
- * 
+ *
  * http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
@@ -15,7 +15,10 @@
  */
 package com.google.android.apps.mytracks.io.file;
 
+import static com.google.android.apps.mytracks.Constants.TAG;
+
 import android.os.Environment;
+import android.util.Log;
 
 import java.io.File;
 
@@ -24,18 +27,18 @@ import java.io.File;
  * @author Sandor Dornbush
  */
 public class TempFileCleaner {
-  
+
   private long currentTimeMillis;
 
   public static void clean() {
     (new TempFileCleaner(System.currentTimeMillis())).cleanImpl();
   }
-  
+
   // @VisibleForTesting
   TempFileCleaner(long time) {
     currentTimeMillis = time;
   }
-  
+
   private void cleanImpl() {
     if (!Environment.getExternalStorageState().equals(
         Environment.MEDIA_MOUNTED)) {
@@ -64,7 +67,9 @@ public class TempFileCleaner {
     long oldest = currentTimeMillis - 1000 * 3600;
     for (File f : dir.listFiles()) {
       if (f.lastModified() < oldest) {
-        f.delete();
+        if (!f.delete()) {
+          Log.w(TAG, "Failed to delete file " + f.getAbsolutePath());
+        }
         count++;
       }
     }

MyTracks/src/com/google/android/apps/mytracks/io/file/TrackWriterImpl.java

@@ -15,6 +15,8 @@
  */
 package com.google.android.apps.mytracks.io.file;
 
+import static com.google.android.apps.mytracks.Constants.TAG;
+
 import com.google.android.apps.mytracks.Constants;
 import com.google.android.apps.mytracks.content.MyTracksLocation;
 import com.google.android.apps.mytracks.content.MyTracksProviderUtils;
@@ -120,7 +122,9 @@ class TrackWriterImpl implements TrackWriter {
         } catch (InterruptedException e) {
           Log.i(Constants.TAG, "The track write was interrupted");
           if (file != null) {
-            file.delete();
+            if (!file.delete()) {
+              Log.w(TAG, "Failed to delete file " + file.getAbsolutePath());
+            }
           }
           success = false;
           errorMessage = R.string.error_operation_cancelled;

MyTracks/src/com/google/android/apps/mytracks/io/mymaps/MyMapsFeature.java

@@ -3,6 +3,7 @@ package com.google.android.apps.mytracks.io.mymaps;
 
 import com.google.android.maps.GeoPoint;
 
+import java.util.Random;
 import java.util.Vector;
 
 /**
@@ -48,6 +49,8 @@ class MyMapsFeature {
   /** The metadata of this feature in a format efficient for transmission. */
   private MyMapsFeatureMetadata featureInfo = new MyMapsFeatureMetadata();
 
+  private final Random random = new Random();
+
   /**
    * Initializes a valid but empty feature. It will default to a
    * {@link #MARKER} with a blue placemark with a dot as an icon at the
@@ -61,7 +64,7 @@ class MyMapsFeature {
    *
    * @param point The new point to add
    */
-  public synchronized void addPoint(GeoPoint point) {
+  public void addPoint(GeoPoint point) {
     latitudeE6.add(point.getLatitudeE6());
     longitudeE6.add(point.getLongitudeE6());
   }
@@ -70,10 +73,10 @@ class MyMapsFeature {
    * Generates a new local id for this feature based on the current time and
    * a random number.
    */
-  public synchronized void generateAndroidId() {
-    Long time = System.currentTimeMillis();
-    Integer random = (int) (Math.random() * 10000);
-    androidId = time.toString() + "." + random.toString();
+  void generateAndroidId() {
+    long time = System.currentTimeMillis();
+    int rand = random.nextInt(10000);
+    androidId = time + "." + rand;
   }
 
   /**
@@ -81,7 +84,7 @@ class MyMapsFeature {
    *
    * @return The local id for this feature
    */
-  public String getAndroidId() {
+  String getAndroidId() {
     return androidId;
   }
 

MyTracks/src/com/google/android/apps/mytracks/services/sensors/SensorManagerFactory.java

@@ -1,12 +1,12 @@
 /*
  * Copyright 2009 Google Inc.
- * 
+ *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
- * 
+ *
  * http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
@@ -45,7 +45,9 @@ public class SensorManagerFactory {
     if (prefs == null) {
       return null;
     }
-    
+
+    context = context.getApplicationContext();
+
     String sensor = prefs.getString(context.getString(R.string.sensor_type_key), null);
     Log.i(Constants.TAG, "Creating sensor of type: " + sensor);