Fix comments on 41a785ab72d4.

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

@@ -23,5 +23,5 @@ import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
  *
  * @author Rodrigo Damazio
  */
-public abstract class BackupPreferencesListener implements OnSharedPreferenceChangeListener {
+public interface BackupPreferencesListener extends OnSharedPreferenceChangeListener {
 }

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

@@ -25,7 +25,7 @@ import android.content.SharedPreferences;
  *
  * @author Jimmy Shih
  */
-public class BackupPreferencesListenerImpl extends BackupPreferencesListener {
+public class BackupPreferencesListenerImpl implements BackupPreferencesListener {
 
   private final BackupManager backupManager;
 

MyTracks/src/com/google/android/apps/mytracks/services/tasks/StatusAnnouncerFactory.java

@@ -37,7 +37,7 @@ public class StatusAnnouncerFactory implements PeriodicTaskFactory {
   @Override
   public PeriodicTask create(Context context) {
     if (hasTts) {
-      return ApiFeatures.getInstance().getApiAdapter().getPeriodicTask(context);
+      return ApiFeatures.getInstance().getApiAdapter().getStatusAnnouncerTask(context);
     } else {
       return null;
     }

MyTracks/src/com/google/android/apps/mytracks/util/ApiLevel3Adapter.java

@@ -62,7 +62,7 @@ public class ApiLevel3Adapter implements ApiLevelAdapter {
   }
   
   @Override
-  public PeriodicTask getPeriodicTask(Context context) {
+  public PeriodicTask getStatusAnnouncerTask(Context context) {
     return new StatusAnnouncerTask(context);
   }
 
@@ -70,8 +70,7 @@ public class ApiLevel3Adapter implements ApiLevelAdapter {
   public BackupPreferencesListener getBackupPreferencesListener(Context context) {
     return new BackupPreferencesListener() {
       @Override
-      public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+      public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {        
-        
         // Do nothing
       }
     };

MyTracks/src/com/google/android/apps/mytracks/util/ApiLevel8Adapter.java

@@ -15,7 +15,7 @@ import android.content.Context;
 public class ApiLevel8Adapter extends ApiLevel5Adapter {
   
   @Override
-  public PeriodicTask getPeriodicTask(Context context) {
+  public PeriodicTask getStatusAnnouncerTask(Context context) {
     return new FroyoStatusAnnouncerTask(context);
   }
   

MyTracks/src/com/google/android/apps/mytracks/util/ApiLevelAdapter.java

@@ -64,11 +64,11 @@ public interface ApiLevelAdapter {
       int id);
 
   /**
-   * Gets a {@link PeriodicTask}.
+   * Gets a status announcer task.
    * 
    * Due to changes in API level 8.
    */
-  PeriodicTask getPeriodicTask(Context context);
+  PeriodicTask getStatusAnnouncerTask(Context context);
   
   /**
    * Gets a {@link BackupPreferencesListener}.