Get family

Initialize callback listener:

OnFamilyListener onFamilyListener = new OnFamilyListener() {			
	@Override
	public void onComplete(List<FamilyUser> familyUsers) {
		Log.i(TAG, "Number of family members = " + familyUsers.size());
	}
	
	/* 
	 * You can override other methods here: 
	 * onThinking(), onFail(String reason), onException(Throwable throwable)
	 */		
};

Get family members:

mSimpleFacebook.getFamily(onFamilyListener);

Get family members of other profile if he also uses your app and accepted the same permissions:

String profileId = ...;
mSimpleFacebook.getFamily(profileId, onFamilyListener);