Last Revision: | Version 1.0, 2007-06-07 A simple example that illustrates the adoption of Cocoa Bindings. |
Build Requirements: | Mac OS X v10.4, Xcode 2.4 |
Runtime Requirements: | Mac OS X v10.4 |
This simple example illustrates the adoption of Cocoa Bindings to manage synchronization of values between models and views.
The example is a simple document-based application. Each document has a window with a text field, slider, and button. The values of the text field and slider represent the volume in a Track object managed by the document. The Mute button sets the volume to zero.
There are three versions of the application:
1. Using target-action to update the track's volume when the user presses Enter in the text field or moves the slider. The user interface is updated programmatically.
2. Programmatically: creating an object controller; binding its content to the track object; and binding the values of the text field and slider to the track's volume. The user interface is updated using bindings.
3. In Interface Builder: creating an object controller; binding its content to the track object; and binding the values of the text field and slider to the track's volume. The user interface is updated using bindings.
Last updated: 2007-06-07