Prosecutors alleged Manoa Chevalier, and another man Daniel Po'oi, broke into a Hawker flat early on September 26 last year demanding money and drugs from the man sleeping inside.

The men wore striped socks on their hands, while Mr Po'oi, 32, held a small sledgehammer and Chevalier, 28, held a knife, the court heard.

The victim told the pair he did not have any cash or drugs to give them.

He offered them instead a bank card but did not tell them it was cancelled.

Mr Po'oi, who was not on trial, allegedly left the apartment with the card and its PIN and the victim's white iPhone.

He allegedly left the sledgehammer, which had "Dan's" written on it in black marker, behind.

While Mr Po'oi was gone Chevalier and the victim scuffled, the knife slicing into the victim's hand.

The victim fled the unit but Chevalier chased him and they grappled again in the stairwell.

Chevalier stabbed the victim in the back and he suffered a punctured lung.

Chevalier faced trial in the ACT Supreme Court charged with multiple crimes in relation to the robbery and assaults.

He had pleaded not guilty.

A jury found Chevalier guilty of aggravated robbery, assault occasioning actual bodily harm, intentionally or recklessly inflict actual bodily harm and intentionally inflict grievous bodily harm.

The jury acquitted him of a further two counts, of threatening to inflict grievous bodily harm and assault occasioning actual bodily harm.

Chevalier is in custody.

The case will return at a later date for sentence.