NSCharacterSet * set = [[NSCharacterSet alphanumericCharacterSet] invertedSet]; if ([aString rangeOfCharacterFromSet:set].location != NSNotFound) { NSLog(@”This string contains illegal characters”); } You could also use a regex (this syntax is from RegexKitLite: http://regexkit.sourceforge.net ): if ([aString isMatchedByRegex:@”[^a-zA-Z0-9]”]) { NSLog(@”This string contains illegal characters”); }
If you want to create a separate class for New Window, these are the steps: Create a class which is a sub class of NSWindowController e.g. NewWindowController Create a window xib for NewWindowController class. On button click code as: NewWindowController *windowController = [[NewWindowController alloc] initWithWindowNibName:@”You Window XIB Name”]; [windowController showWindow:self];
You can pretty much rest assured that your app is going to get killed at least some of the time. Thus, defending against exits the like of exit(0); is required. However, NSApplication implements the -terminate: method. [NSApp terminate: nil]; ought to do what you want. I would generally suggest posting it via -performSelector:afterDelay: with a … Read more
Tutorial for Xcode 4 Create new project and add the following to AppDelegate.h and AppDelegate.m. AppDelegate.h #import <Cocoa/Cocoa.h> @interface AppDelegate : NSObject <NSApplicationDelegate> { IBOutlet NSPanel *theSheet; } @property (assign) IBOutlet NSWindow *window; @end AppDelegate.m #import “AppDelegate.h” @implementation AppDelegate @synthesize window = _window; – (IBAction) showTheSheet:(id)sender { [NSApp beginSheet:theSheet modalForWindow:(NSWindow *)_window modalDelegate:self didEndSelector:nil contextInfo:nil]; } … Read more
The maximum value of an NSInteger is NSIntegerMax.
CGo is what enables you to call C code. See the CGo doc and the informative, official blog post on it. There does not seem to be cocoa bindings/libraries yet, but you may want to check out the GTK package for reference.
In Swift 4.0 you can get the screen size of the main screen: if let screen = NSScreen.main { let rect = screen.frame let height = rect.size.height let width = rect.size.width } If you look for the size of the screen with a particular existing window you can get it with: var window: NSWindow = … Read more
Firstly, I have observed that when Xcode 4 decides my Mac is 64 bit and all my other schemes have vanished, a restart of Xcode fixes that. If you still have the issue after a restart, go to Manage Schemes… (under the Product Menu) and click on Autocreate Schemes now button. Try to delete the … Read more
E.g. by using a directory enumerator: NSFileManager *fileManager = [[NSFileManager alloc] init]; NSDirectoryEnumerator *enumerator = [fileManager enumeratorAtPath:path]; NSString *file; while (file = [enumerator nextObject]) { NSError *error = nil; BOOL result = [fileManager removeItemAtPath:[path stringByAppendingPathComponent:file] error:&error]; if (!result && error) { NSLog(@”Error: %@”, error); } } Swift let fileManager = NSFileManager.defaultManager() let enumerator = fileManager.enumeratorAtURL(cacheURL, … Read more
although it does not seem to be documented, there is evidence that NSURLConnection does have transparent gzip support. meaning that if the server supports gzip encoding, and your request has an Accept-Encoding header containing gzip*, the server will send a gzipped response, which NSURLConnection will automatically decode. * NSURLRequest might add that header by default. … Read more