ABAddressBook & AddressBook UI 文件介绍（IOS开发）

原文链接地址：http://what-when-how.com/ios-4/accessing-the-address-book-ios-4/

下图为 文章的核心部分。介绍了两个 ios addressbook 和addressbook UI 系统frame，有一些不了解的，看看后再编程，会有很大帮助

In this section, we’ll provide a basic reference that supplements Apple’s own tutorial, but we suggest you read their guide for
more extensive information. We’ll look at the Address Book frameworks, show how to access the Address Book’s properties, and explain how to use the Address Book UI.

Table 9.3 lists many of the most important classes in the frameworks. Table 9.3 The Address Book classes, the framework they belong to, and what they do

Class	Framework	Summary
ABAddressBook	Address Book	Interface for accessing and changing the Address Book; may not be required if you use the Address Book UI framework
ABNewPersonViewController	Address Book UI	Interface for entering new record manually
ABPeoplePickerNavigationController	Address Book UI	Interface for selecting users and properties
ABPersonViewController	Address Book UI	Interface for displaying and editing records
ABUnknownPersonViewController	Address Book UI	Interface for displaying "fake" contact and possibly adding it to Address Book
ABGroup	Address Book	Opaque type giving access to the records of groups
ABPerson	Address Book	Opaque type giving access to the records of individual people
ABRecord	Address Book	Record providing information on a person or group
ABMultiValue	Address Book	Type containing multiple values, each with its own label; its precise use is defined in ABPerson, where it’s applied to addresses, dates, phone numbers, instant messages, URLs, and related names
ABMutableMultiValue	Address Book	An ABMultiValue whose values can be modified

Each of these classes contains numerous functions that can be used to build Address Book
projects. We’ll talk about a few important functions and point you to the class references for the rest.

Accessing Address Book properties

As you’ll see shortly, the Address Book and Address Book UI frameworks
ultimately provide different ways of accessing the Contacts data information: you might be working with the Address Book programmatically, or a user may be making selections through fancy UIs.
Ways to select individual contacts may vary, but after a contact has been selected, you’ll generally use the same getter and setter functions to work with that record. These important functions are listed in table 9.4.

Table 9.4 Property setters and getters are among the most important functions in the Address Book.

Function	Arguments	Summary
ABRecordCopyValue	ABRecordRef, property	Looks up a specific property from a specific record
ABRecordSetValue	ABRecordRef, property, value, &error	Sets a property to a value in a record
ABMultiValueGetCount	ABMultiValue	Returns the size of a multivalue (which can contain one or more copies of a record, such as multiple phone numbers)
ABMultiValueCopyLabelAtIndex	ABMultiValueRef,index	Looks up the label of an entry in a multivalue
ABMultiValueCopyValueAtIndex	ABMultiValueRef,index	Looks up the content of an entry in a multivalue
ABCreateMutableCopy	ABMultiValueRef	Creates a copy of a multivalue
ABMultiValueReplaceLabelAtIndex	ABMutableMultiValueRef, label, index	Replaces a label at an index in a multivalue