public void loginWithFacebook() {
// start Facebook Login
Session currentSession = Session.getActiveSession();
if (currentSession == null || currentSession.getState().isClosed()) {
Session session = new Session.Builder(this).build();
Session.setActiveSession(session);
currentSession = session;
}
// Ask for username and password
Session.OpenRequest op = new Session.OpenRequest(this);
op.setLoginBehavior(SessionLoginBehavior.SSO_WITH_FALLBACK);
op.setCallback(null);
List<String> permissions = new ArrayList<String>();
permissions.add("email");
permissions.add("user_status");
permissions.add("friends_status");
permissions.add("read_stream");
op.setPermissions(permissions);
Session session = new Session.Builder(LoginActivity.this).build();
Session.setActiveSession(session);
session.addCallback(
new Session.StatusCallback() {
// callback when session changes state
@Override
public void call(Session session, SessionState state, Exception exception) {
final String accessToken = session.getAccessToken();
if (session.isOpened()) {
Request.executeMeRequestAsync(
session,
new Request.GraphUserCallback() {
public void onCompleted(GraphUser user, Response response) {
if (user == null) {
DialogHelper.showRetryDialog(
LoginActivity.this,
getString(R.string.could_not_connect_fb_account),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
loginWithFacebook();
}
},
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialogInterface, int i) {
finish();
}
});
} else {
final String name = user.getName();
final String email = (String) user.getProperty("email");
Toast.makeText(LoginActivity.this, name + " " + email, Toast.LENGTH_LONG)
.show();
UserHelper.setCurrentUser(user, accessToken);
Intent i = new Intent(LoginActivity.this, RevibeActivity.class);
startActivity(i);
finish();
}
}
});
}
}
});
session.openForRead(op);
}
