Simple Facebook Login on Android

gistfile1.java

void facebookLogin(){
		// start Facebook Login
	    Session.openActiveSession(this, true, new Session.StatusCallback() {

	      // callback when session changes state
	      @SuppressWarnings("deprecation")
		@Override
	      public void call(Session session, SessionState state, Exception exception) {
	        if (session.isOpened()) {

	          // make request to the /me API
	          Request.executeMeRequestAsync(session, new Request.GraphUserCallback() {

	            // callback after Graph API response with user object
	            @Override
	            public void onCompleted(GraphUser user, Response response) {
	              if (user != null) {
	                TextView welcome = (TextView) findViewById(R.id.welcome);
	                welcome.setText("Hello " + user.getName() + "!");
	              }
	            }
	          });
	        }
	      }
	    });
	}