Ios showing 'No Name' in phone contact after save

Dear all,

I have made an app to save contact to phone’s contact,

$scope.contactForm.displayName = employee.get('username'); 

It working fine with android, but ios its display ‘No Name’. or ios having different properties’s name? if so anyone know where is the list? how can I handle this situation for android and ios?

Thanks in advance :smile:
Best regards,
/Pherum Un