Android is normal, IOS has problems #16

When using plug-ins, IOS has some problems:

/Users/furun/.pub-cache/hosted/pub.dartlang.org/contacts_plugin-0.0.3/ios/Classes/model/Address.swift:17:16: error: use of undeclared type 'AddressType' var type : AddressType = AddressType.other ^~~~~~~~~~~ /Users/furun/.pub-cache/hosted/pub.dartlang.org/contacts_plugin-0.0.3/ios/Classes/model/Address.swift:10:7: error: type 'Address' does not conform to protocol 'Decodable' class Address : Codable { ^ Swift.Decodable:2:5: note: protocol requires initializer 'init(from:)' with type 'Decodable' init(from decoder: Decoder) throws ^