Categories
android facebook facebook-android-sdk facebook-authentication

StatusCallback not called after requestNewReadPermissions then requestNewPublishPermissions

I am developing an Android App that integrates with Facebook. I would like to:

  1. Let the user login with Facebook
  2. Get the user’s email address on Facebook (could be a proxied email address, which is fine)
  3. Post to the user’s wall/timeline on his/her behalf

Technically, that would be to:

  1. Authenticate the user
  2. Request the email permission
  3. Request the publish_stream permission

1. Authenticate the user

I called Session.openActiveSession() with a Session.StatusCallback (I already checked that there is no active opened session beforehand):

final Session.StatusCallback sessionStatusCallback = new Session.StatusCallback() {
public void call(final Session session, SessionState state, Exception exception) {
// If there is an exception...
if(exception != null)
{
// Handle fail case here.
return;
}
// If session is just opened...
if(state == SessionState.OPENED)
{
// Handle success case here.
return;
}
};
};
// Start Facebook Login.
Session.openActiveSession(activity, true, sessionStatusCallback);

My callback is called after successful login. So far so good.

2. Request the email permission

This is my status callback:

new Session.StatusCallback() {
public void call(final Session session, SessionState state, Exception exception) {
// If there is an exception...
if(exception != null)
{
// Handle fail case here.
return;
}

// If token is just updated...
if(state == SessionState.OPENED_TOKEN_UPDATED)
{
// Handle success case here.
return;
}
};
};

I request the permission with Session.requestNewReadPermissions():

final Session session = Session.getActiveSession();
final static String[] PERMISSION_ARRAY_READ = {"email"};
final List<String> permissionList = Arrays.asList(PERMISSION_ARRAY_READ);
// If all required permissions are available...
if(session.getPermissions().containsAll(permissionList))
{
// Handle success case here.
return;
}
// Request permissions.
session.requestNewReadPermissions(new Session.NewPermissionsRequest(activity, permissionList));

My callback is called after permission is granted. So far so good.

3. Request the publish_stream permission

This is my status callback:

new Session.StatusCallback() {
public void call(final Session session, SessionState state, Exception exception) {
// If there is an exception...
if(exception != null)
{
// Handle fail case here.
return;
}

// If token is just updated...
if(state == SessionState.OPENED_TOKEN_UPDATED)
{
// Handle success case here.
return;
}
};
};

I request the permission with Session.requestNewPublishPermissions():

final Session session = Session.getActiveSession();
final static String[] PERMISSION_ARRAY_PUBLISH = {"publish_stream"};
final List<String> permissionList = Arrays.asList(PERMISSION_ARRAY_PUBLISH);
// If all required permissions are available...
if(session.getPermissions().containsAll(permissionList))
{
// Handle success case here.
return;
}
// Request permissions.
session.requestNewPublishPermissions(new Session.NewPermissionsRequest(activity, permissionList));

This time, my callback is not called after permission is granted.

Investigation

Upon further investigation, I found that my callback is triggered by com.facebook.Session#postStateChange(SessionState, SessionState, Exception):

void postStateChange(final SessionState oldState, final SessionState newState, final Exception exception) {
if (oldState == newState && exception == null) {
return;
}
/* ... */
}

Since oldState and newState are equal (both being SessionState.OPENED_TOKEN_UPDATED, my callback is not called.

Question

How can I receive any notification after permission is granted for the 2nd time? Am I supposed to close() the session and re-open it from cache?

Additional info

My Facebook Android SDK 3.0 is download from here, which is stated in Facebook’s Getting Started with the Facebook SDK for Android.