如何仅启动具有手机号码的联系人的 ABPeoplePickerNavigationController？

Question

A​​pple 提供了一个名为 PeoplePicker 的示例项目，它启动了一个 ABPeoplePickerNavigationController 只有拥有电子邮件地址的联系人：

ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init];
picker.peoplePickerDelegate = self;

// The people picker will only display the person's name, image and email properties in ABPersonViewController.
picker.displayedProperties = @[@(kABPersonEmailProperty)];

// The people picker will enable selection of persons that have at least one email address.
picker.predicateForEnablingPerson = [NSPredicate predicateWithFormat:@"emailAddresses.@count > 0"];

如何只显示有 mobile/telephone 个号码的联系人？我已经在 Apple 文档中查找要用于 @count 操作的密钥（本例中为 emailAddresses），但我找不到它。

Answer 1

像这样使用ABPersonPhoneNumbersProperty：

[NSPredicate predicateWithFormat:@"%K.@count > 0", ABPersonPhoneNumbersProperty];