Changes between Version 3 and Version 4 of AppleCurrencyConverterBuildingUserInterfaceWithTigerAddClasses


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Timestamp:
Jan 21, 2008, 10:05:41 PM (12 years ago)
Author:
mikel
Comment:

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  • AppleCurrencyConverterBuildingUserInterfaceWithTigerAddClasses

    v3 v4  
    55When a user clicks the "Convert" button, it should send a message to an instance of a custom class that causes the conversion to take place, and the result to be displayed in the "Amount" field. In order for the application to connect the user interface to objects that perform these actions, you must add descriptions of your classes and instances to the nibfile. Fortunately, !InterfaceBuilder can create class and instance descriptions and save them in the nibfile for you.
    66
    7 == ConverterController ==
     7== !ConverterController ==
    88
    99!ConverterController is the controller class; an instance of it handles messages sent when the "Convert" button is pressed. Create a description of the !ConverterController class, and then create an instance of it.