Contact.fromMap constructor
Implementation
factory Contact.fromMap(Map<String, dynamic> map) {
return Contact(
id: map['id'].toString().toNullString(),
displayName: map['displayName'].toString().toNullString(),
phoneNumber: map['phoneNumber'].toString().toNullString(),
email: map['email'].toString().toNullString(),
photoUri: map['photoUri'].toString().toNullString(),
);
}