Hooper was arrested just after 2am on Sunday outside the Oasis Nightclub in Dalby west of Brisbane.

"Police detained a 20-year-old Toowoomba resident in relation to other matters when he exposed himself to police and became aggressive and violent," Dalby police sergeant Dave Tierney said.

Sergeant Tierney said the charges included wilful exposure, obstructing police and serious assault of a police officer.

Hooper was released on bail on Sunday and is due to appear in Dalby Magistrates Court on February 19.

Hooper represented Australia in the London Olympics last year.

He confirmed his amateur boxing days were over directly after a 19-11 defeat to Russian light-heavyweight Egor Mekhontcev.

"I want to turn pro," Hooper said after the bout at the Olympics.

"I've showed all of Australia ... I went further than most amateur boxers ever in Australia, I've put my name out there. I'm going to be exciting in the pros and that's what (gets) contracts and all them people like promoters want."

He was also at the centre of controversy after the 20-year-old strode to the ring wearing a T-shirt with an image of the Aboriginal flag emblazoned on it.

Hooper apologised to Australia's chef de mission, Nick Green, for contravening his athletes' agreement and the International Olympic Committee charter, which prevents political statements at the Games.

Read more at The Toowoomba Chronicle