-Added string for unknown content. -Fixed NPE when UI element is touched after player shuts down in service activity. -Fixed shuffle reset caused by position discontinuity offsets index. -Moved some more player shared preferences to PlayerHelper.
-Added string for unknown content. -Fixed NPE when UI element is touched after player shuts down in service activity. -Fixed shuffle reset caused by position discontinuity offsets index. -Moved some more player shared preferences to PlayerHelper.