MiniMovieを活用しています。写真だけで動画が作れる便利なツールです。お勧めです!
https://play.google.com/store/apps/details?id=com.asus.microfilm&referrer=utm_source%3Dtell_a_friend%26utm_term%3Dtell_a_friend%26utm_campaign%3Dtell_a_friend
https://play.google.com/store/apps/details?id=com.asus.microfilm&referrer=utm_source%3Dtell_a_friend%26utm_term%3Dtell_a_friend%26utm_campaign%3Dtell_a_friend