Ios 在Objective-C中保存服装

我有以下代码：

CNMutablePostalAddress *postalAddress = [[CNMutablePostalAddress alloc] init];
[postalAddress setCity:@"City"];

CNLabeledValue *city = [CNLabeledValue labeledValueWithLabel:CNPostalAddressCityKey value:postalAddress.city];

NSArray<CNLabeledValue<CNMutablePostalAddress *> *> *postalAddresses = @[city];

contact.postalAddresses = @[postalAddresses];

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我该怎么做？

这将创建一个新的邮政地址，并将其添加到

联系人中。这就是你想要的，对吗

CNMutablePostalAddress *postalAddress = [[CNMutablePostalAddress alloc] init];
postalAddress.city = @"City";

CNLabeledValue *labeledValue = [CNLabeledValue labeledValueWithLabel:CNLabelHome value:address];
contact.postalAddresses = @[labeledValue];

这是正确的实现

CNMutablePostalAddress *postalAddress = [[CNMutablePostalAddress alloc] init];
postalAddress.street = @"1 Market Street";
postalAddress.city = @"Sydney";
postalAddress.postalCode = @"2000";
postalAddress.state = @"NSW";
CNLabeledValue *address = [CNLabeledValue labeledValueWithLabel:CNLabelWork value:postalAddress];
contact.postalAddresses = @[address];

你想做什么转换？保存和转换是不同的事情，请更正标题或故事。我需要在“contact.postalAddresss”中保存“city”，但我需要在之前进行转换，否则应用程序将崩溃@意义重大！非常感谢！：）@意义-matters@David很乐意帮忙！如果你不知道的话，你也可以投票赞成这个答案；-）
CNMutablePostalAddress *postalAddress = [[CNMutablePostalAddress alloc] init];
postalAddress.street = @"1 Market Street";
postalAddress.city = @"Sydney";
postalAddress.postalCode = @"2000";
postalAddress.state = @"NSW";
CNLabeledValue *address = [CNLabeledValue labeledValueWithLabel:CNLabelWork value:postalAddress];
contact.postalAddresses = @[address];