html5 videoplayer and adsense problem in android

Hello Friends I have little bit problem in my android app. My problems are under. 1- My application does not play embed video players as fullscreen. I dont know why. Normal player is working but full screen is not working. First problem this problem should be fixed. [login to view URL] 2- When user press full screen button; I want adsense ads must open before user watching video. this ad must wait for x seconds or if user click ads video will start to play immediately. example ads is under. [login to view URL] 3- I want user to download source of video player. User should download video if user wants. Download button will be right top of screen and it will be shown with standart player buttons. if user touch screen this button will be visible. if user does not touch screen for x seconds. this button will be invisible. [login to view URL] my debug apk : [login to view URL] This project must finish within 24 hours. if you have any questions please ask me.