Simazema kwdika & Diorthosi lathous me user side

simazepsa ligo ton kwdika kai evgala ta buttons apo thn arxiki forma...
Epishs diorthosa ena lathaki p eixes niko otan pigenes na mpeis san user
sou anoige to store side, to lathos diorthothik sthn if tou login
activity to ekana .equals("user")