从已知值创建CNPostalAddress

Question

我正在尝试在Objective-C中创建一个带有一些字符串的CNPostalAddress。我有街道地址，城市，州，邮政编码和国家的值。我已经尝试了下面的代码，但它不工作。感谢您的宝贵时间。

CNPostalAddress *postalAddr = [[CNPostalAddress alloc] init];
postalAddr.street = [NSString stringWithFormat:@"%@ %@",street1,street2];// here, I am getting an error: Street property is read only.

Answer 1

创建CNMutablePostalAddress而不是CNPostalAddress：

CNMutablePostalAddress *postalAddr = [[CNMutablePostalAddress alloc] init];
postalAddr.street = [NSString stringWithFormat:@"%@ %@", street1, street2];

CNMutablePostalAddress是CNPostalAddress的子类，因此从现在开始，您可以像使用CNPostalAddress一样使用它。

Answer 2

上面的答案在Swift中重写了：

let postalAddr = CNMutablePostalAddress()
postalAddr.street = String(format: "%@ %@", street1, street2)