- Change the default value for the "defaultMapPublic" key to false.

Thus the default is creating new unlisted maps.
- Toggle the title of the "defaultMapPublic" setting between
  "Make new maps public" and "Make new maps unlisted".
- Fix bug in TrackNameUtil to check if startTime is -1L.

MyTracks/res/values/strings.xml

@@ -1836,24 +1836,33 @@ limitations under the License.
     Other apps can read, write, start/stop recording My Tracks data.
   </string>
   <string name="settings_sharing_map_public"
-    translation_description="In the 'Sharing' settings, the checkbox option to make a new map
+    translation_description="In the 'Sharing' settings, the title of the option to make new maps
-      created in Google Maps public.
+      created in Google Maps public, as opposed to unlisted. See
+      http://support.google.com/maps/bin/answer.py?answer=62845 for public versus unlisted.
 
       Character limit: ~23 (1 line)">
     Make new maps public
   </string>
-  <string name="settings_sharing_map_public_summary_off"
+  <string name="settings_sharing_map_public_summary"
     translation_description="In the 'Sharing' settings, the summary for the 'Make new maps public'
-      checkbox option when it is unchecked explaining that new maps created in Google Maps will
+      option explaining that new maps created in Google Maps will be public, as opposed to unlisted.
-      be unlisted, as opposed to public.">
+      See http://support.google.com/maps/bin/answer.py?answer=62845 for public versus unlisted.">
-    New maps created in Google Maps will be unlisted.
-  </string>
-  <string name="settings_sharing_map_public_summary_on"
-    translation_description="In the 'Sharing' settings, the summary for the 'Make new maps public'
-      checkbox option when it is checked explaining that new maps created in Google Maps will
-      be public, as opposed to unlisted.">
     New maps created in Google Maps will be public.
   </string>
+  <string name="settings_sharing_map_unlisted"
+    translation_description="In the 'Sharing' settings, the title of the option to make new maps
+      created in Google Maps unlisted, as opposed to public. See
+      http://support.google.com/maps/bin/answer.py?answer=62845 for public versus unlisted.
+
+      Character limit: ~23 (1 line)">
+    Make new maps unlisted
+  </string>
+  <string name="settings_sharing_map_unlisted_summary"
+    translation_description="In the 'Sharing' settings, the summary for the 'Make new maps unlisted'
+      option explaining that new maps created in Google Maps will be unlisted, as opposed to public.
+      See http://support.google.com/maps/bin/answer.py?answer=62845 for public versus unlisted.">
+    New maps created in Google Maps will be unlisted.
+  </string>
 
   <!-- Settings Show -->
   <string name="settings_show"

MyTracks/res/xml/sharing_settings.xml

@@ -22,11 +22,10 @@ limitations under the License.
     android:summary="@string/settings_sharing_account_summary"
     android:title="@string/settings_sharing_account" />
   <CheckBoxPreference
-    android:defaultValue="true"
+    android:defaultValue="false"
     android:key="@string/default_map_public_key"
-    android:summaryOff="@string/settings_sharing_map_public_summary_off"
+    android:summaryOff="@string/settings_sharing_map_unlisted_summary"
-    android:summaryOn="@string/settings_sharing_map_public_summary_on"
+    android:summaryOn="@string/settings_sharing_map_public_summary" />
-    android:title="@string/settings_sharing_map_public" />
   <CheckBoxPreference
     android:defaultValue="false"
     android:key="@string/allow_access_key"

MyTracks/src/com/google/android/apps/mytracks/settings/SharingSettingsActivity.java

@@ -18,6 +18,7 @@ package com.google.android.apps.mytracks.settings;
 
 import com.google.android.apps.mytracks.Constants;
 import com.google.android.apps.mytracks.util.DialogUtils;
+import com.google.android.apps.mytracks.util.PreferencesUtils;
 import com.google.android.maps.mytracks.R;
 
 import android.accounts.Account;
@@ -41,7 +42,8 @@ import java.util.List;
 public class SharingSettingsActivity extends AbstractSettingsActivity {
 
   private static final int DIALOG_CONFIRM_ALLOW_ACCESS_ID = 0;
-
+  
+  private CheckBoxPreference defaultMapPublicCheckBoxPreference;
   private CheckBoxPreference allowAccessCheckBoxPreference;
 
   @SuppressWarnings("deprecation")
@@ -50,6 +52,20 @@ public class SharingSettingsActivity extends AbstractSettingsActivity {
     super.onCreate(bundle);
     addPreferencesFromResource(R.xml.sharing_settings);
 
+    defaultMapPublicCheckBoxPreference = (CheckBoxPreference) findPreference(
+        getString(R.string.default_map_public_key));
+    boolean defaultMapPublic = PreferencesUtils.getBoolean(
+        this, R.string.default_map_public_key, PreferencesUtils.DEFAULT_MAP_PUBLIC_DEFAULT);
+    updateDefaultMapPublicTitle(defaultMapPublic);
+    defaultMapPublicCheckBoxPreference.setOnPreferenceChangeListener(
+        new OnPreferenceChangeListener() {
+            @Override
+          public boolean onPreferenceChange(Preference preference, Object newValue) {
+            updateDefaultMapPublicTitle((Boolean) newValue);
+            return true;
+          }
+        });
+
     allowAccessCheckBoxPreference = (CheckBoxPreference) findPreference(
         getString(R.string.allow_access_key));
     allowAccessCheckBoxPreference.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
@@ -94,4 +110,14 @@ public class SharingSettingsActivity extends AbstractSettingsActivity {
           }
         });
   }
+  
+  /**
+   * Updates the title for the default map public check box preference.
+   * 
+   * @param value the value
+   */
+  private void updateDefaultMapPublicTitle(boolean value) {
+    defaultMapPublicCheckBoxPreference.setTitle(value ? R.string.settings_sharing_map_public
+        : R.string.settings_sharing_map_unlisted);
+  }
 }

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

@@ -51,7 +51,7 @@ public class PreferencesUtils {
   public static final boolean CHART_SHOW_SPEED_DEFAULT = true;
 
   public static final String DEFAULT_ACTIVITY_DEFAULT = "";
-  public static final boolean DEFAULT_MAP_PUBLIC_DEFAULT = true;
+  public static final boolean DEFAULT_MAP_PUBLIC_DEFAULT = false;
   public static final int FREQUENCY_OFF = 0;
   public static final int MAX_RECORDING_DISTANCE_DEFAULT = 200;
   public static final boolean METRIC_UNITS_DEFAULT = true;

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

@@ -79,8 +79,11 @@ public class TrackNameUtils {
       if (location != null) {
         return getReverseGeoCoding(context, location);
       } else {
-        // assume startTime != -1L when location == null
+        // Use the startTime if available
-        return StringUtils.formatDateTime(context, startTime);
+        if (startTime != -1L) {
+          return StringUtils.formatDateTime(context, startTime);
+        }
+        return null;
       }
     }
   }