Login Approach with Android Facebook 3.0 SDK

Question

While going through the sample program for Facebook Login, I came across SessionLoginSample\'s LoginUsingActvity.java https://github.com/facebook/facebook-android-sd

Answer 1

Every approach works well. The new thing is SDK 3.0 is session management. You just have to manage session state. Apart from your code I will state 3 more and then I'll tell you when to use them.

1.

Using Session object after getting active session.

Session session = Session.getActiveSession();
if(session ==null)
session= new Session(getApplicationContext) // Also use session builder
if (!session.isOpened() && !session.isClosed()) {
    session.openForRead(new Session.OpenRequest(this)
    .setPermissions(Arrays.asList("basic_info"))
    .setCallback(statusCallback));
}
else
{
    Session.openActiveSession(getActivity(), this, true, statusCallback);
}


private class SessionStatusCallback implements Session.StatusCallback {
    @Override
    public void call(Session session, SessionState state, Exception exception) {
        if(session.isOpened()
          //do something
    } 

2.

By using default LoginButton Widget.

 


LoginButton authButton = (LoginButton) view.findViewById(R.id.authButton);
authButton.setFragment(this);       
authButton.setReadPermissions(Arrays.asList( 
                "user_birthday",
                "user_likes",
                "read_stream",
                ));      
Settings.addLoggingBehavior(LoggingBehavior.REQUESTS);

3.

Using Webdialog -

 Bundle bundle = new Bundle();
    bundle.putString("message", "message");
    WebDialog localWebDialog = new WebDialog.Builder(this, "app_id", "oauth", bundle).build();
    localWebDialog.setOnCompleteListener(new WebDialog.OnCompleteListener()
    {
        public void onComplete(Bundle bundle, FacebookException facebookException)
        {

            Session.getActiveSession();
            AccessToken localAccessToken = AccessToken.createFromExistingAccessToken(bundle.getString("access_token"), null, null, AccessTokenSource.WEB_VIEW, null);
            Session.openActiveSessionWithAccessToken(MainActivity.this.getApplicationContext(), localAccessToken, MainActivity.this.callback);
        }
    });
    localWebDialog.show();

    private class SessionStatusCallback implements Session.StatusCallback {
        @Override
        public void call(Session session, SessionState state, Exception exception) {
            if(session.isOpened()
            //do something
        }

Use 3rd approach in devices 2.3 or lower because previous ones shows unexpected error on most cases.