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Programming, Page 5

NSTimer:timerWithTimeInterval:target:selector:userInfo:repeats:

+(NSTimer *) timerWithTimeInterval:(NSTimeInterval)seconds 　　　target:(id)target 　　　selector:(SEL)aSelector 　　　userInfo:(id)userInfo 　　　repeats:(BOOL)repeats ## example #import “MyObject.h” @implementation MyObject NSTimer *timer; – (IBAction)myAction:(id)sender { timer = [NSTimer timerWithTimeInterval:1 …

ls in Cocoa

//Launch “ls -l -a -t” in the current directory, and then read the result into an NSString: NSTask *task; task = [[NSTask …