+onSaveInstanceState(); +restoring state if savedInstanceState not null
+required permissions
rejected usage of KEY_PROGRESS
+empty ACTION_BUTTON_ON_CLICK_LISTENER
fixed intent filter action
+showPicture(); +getAlbumDirectory(); +multiple string resources
improved onClick()
fixed DownloaderIntentService constructor
registered the service
+sendState()
major upgrade of DownloaderIntentService
fixed little bug
fixed wrong onSaveInstanceState()