package Ġcom . dan hd ue exo ict if . youtube player . player . listeners Ċ Ċ interface ĠYouTube Player FullScreen Listener Ġ{ ĊĠĠĠ Ġfun Ġon YouTube Player Enter FullScreen () ĊĠĠĠ Ġfun Ġon YouTube Player Exit FullScreen () Ċ } Ċ