Career
His career began in a small club FK Iskra Stolac, which consisted mainly of refugees from Stolac who lived in Mostar during the Bosnian War. He was spotted there by FK Velež Mostar and soon they signed a contract. His speed and good technical abilities made him interesting for other Bosnian clubs.
Since FK Velež was playing in second division at the time, and his ambitions were much bigger, he was determined to move.
FK Sarajevo showed its interest, but they could not agree. In the summer of 2005, he moved to FK Željezničar.
On June 1, 2011, Vladavić signed with FK Olimpik from Sarajevo. On January 18, 2012, Vladavić signed with MFK Karviná.
On March 2013 Admir joined FK Velež Mostar on a loan deal.
On 15 December he joined Maltese Premier League Club Sliema Wanderers
Good games secured him a call in national team He made his debut on 28 February 2006 in a game against Japan.