Property list supported ObjC types

Question

Is it correct to say that property list files (.plist) only handle NSString, NSNumber, NSDate and NSData (allowing to store any other type which conforms to NSCoder) + NSArray / NSDictionary of those types?

Hesse

Answer 1

Yep, that is pretty much the exact definition of a property list. Wikipedia has a little table that explains how each class will be stored in the resulting XML file:

Foundation class    XML Tag                  Storage format
NSString            <string>                 UTF-8 encoded string
NSNumber            <real>, <integer>        Decimal string
NSNumber            <true />, or <false />   No data (tag only)
NSDate              <date>                   ISO 8601 formatted string
NSData              <data>                   Base64 encoded data
NSArray             <array>                  Can contain any number of child elements
NSDictionary        <dict>                   Alternating <key> tags and plist element tags

Pyriform

Answer 2

Property List can only contains following types of data:

NSString NSNumber NSNumber NSDate NSData NSArray NSDictionary

for more information visit: Property List Format or visit Apple Docs

You can also save other objects as NSData by serializing them

Helle