QuickTime Kit Programming Guide - filibeto.org

C H A P T E R 5
Extending the QTKitPlayer To Stream Audio and Video
}
NSMutableArray *mUrlArray;
BOOL mIsSheet;
3. Define a class method with the following line of code:
+ (id)openURLPanel;
4. Define the getters you need with the following lines of code:
-(NSString *)urlString;
- (NSURL *)url;
5. Define the setters with the following line of code:
- (void)setURLArray:(NSMutableArray *)urlArray;
6. Define the delegate with the following line of code:
- (void)awakeFromNib;
7. Define the notifications:
- (void)writeURLs:(NSNotification *)notification;
8. Define the actions you need:
(IBAction)doOpenURL:(id)sender;
9. Define the delegate methods:
- (void)beginSheetWithWindow:(NSWindow *)window delegate:(id)delegate
didEndSelector:(SEL)didEndSelector contextInfo:(void *)contextInfo;
Save the file in the Classes folder in your QTKitPlayer project.
Adding Code To OpenURLPanel.m
In this next sequence of steps, you’ll be adding a larger chunk of code to your OpenURLPanel.m
implementation file.
To begin, in your QTKitPlayer project, choose File > New File. In the Assistant window for your new
file in Xcode 2.0, select Cocoa > Objective-C class and in the window that opens enter the title
OpenURLPanel.m . (Note that if you check the box in the title window, your implementation will
already be created for you.) Now follow these steps:
1. Insert the following import code at the beginning of your file:
#import "OpenURLPanel.h"
2. Following your import statement, you want to define a constant for specifying user default keys.
Insert this line:
#define kUserDefaultURLsKey @"UserDefaultURLsKey"
Adding Code To Stream Audio and Video 89
2005-11-09 | © 2004, 2005 Apple Computer, Inc. All Rights Reserved.