I was surfing some free mp3 sites when this happened! I googled to see if someone knows how to make this happen but no success. For people who r thinking this is fake, I have uploaded a pic from my another phone(sorry for bad quality)
BTW i am using Galaxy Cre but I don't think its related to mobile version
Help Please, how can I do this?
PS I am neither rooted nor have custom rom
PSS when it gone fullscreen, it showed a bubble message "slide from top to exit fullscreen"