Albania in 1815 was an integral part of the Ottoman Empire, and had been for nearly three centuries and half, more in many places. For about as long, no significant or lasting holding of any Italian state existed there, the closest thing to that I know of being Antivari and Dulcigno, two Venetian-held towns on the coast of modern Montenegro. They were actually known as "Venetian Albania". The area was minuscule, peripheral, and mostly Slavic.
In what is now Albania, the diverse local dialects of the Gheg and Tosk forms of Albanian were mostly spoken, alongside Greek, Serbo-Croatian, etc. Venetian and Italian were probably known by some in coastal centers, to a varying extent. That's it.
Most Albanians were Muslims. A lot of the remainder were Greek Orthodox and would have had hard time to indentify with a majority Catholic state.
Albanians got along relatively well with Italy after they felt the Ottomans failed them, which happened mostly after 1908. 'Relatively' doing a lot of work here, as Albanians looked sometimes to Italy as a protector against Serbs or Greeks, but Italy was still a colonizing invader to them. Italy had at times reason to seek Albanians as _very junior_ partners.
But again, this is entirely contextual and relative.
Italy would have to _conquer_ Albania (as was tried, late).