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  • NSDateFormatter Puzzle! Is this is new Mountain Lion Bug?

    - by user1631526
    I believe I might have found a bug in NSDateFormatter, and I am not sure if this is localized to Brazil date format. This is my resulting log: 2012-08-26 01:32:17.875 nsDateFormatterPuzzle[3261:303] original item # 0 = 2011-09-18 2012-08-26 01:32:17.876 nsDateFormatterPuzzle[3261:303] original item # 1 = 2011-10-16 2012-08-26 01:32:17.876 nsDateFormatterPuzzle[3261:303] original item # 2 = 2011-11-13 2012-08-26 01:32:17.877 nsDateFormatterPuzzle[3261:303] original item # 3 = 2011-12-11 2012-08-26 01:32:17.877 nsDateFormatterPuzzle[3261:303] original item # 4 = 2012-01-08 2012-08-26 01:32:17.877 nsDateFormatterPuzzle[3261:303] original item # 5 = 2012-02-05 2012-08-26 01:32:17.883 nsDateFormatterPuzzle[3261:303] formatted item # 0 = 18/09/2011 2012-08-26 01:32:17.884 nsDateFormatterPuzzle[3261:303] formatted item # 1 = (null) 2012-08-26 01:32:17.885 nsDateFormatterPuzzle[3261:303] formatted item # 2 = 13/11/2011 2012-08-26 01:32:17.886 nsDateFormatterPuzzle[3261:303] formatted item # 3 = 11/12/2011 2012-08-26 01:32:17.887 nsDateFormatterPuzzle[3261:303] formatted item # 4 = 08/01/2012 2012-08-26 01:32:17.887 nsDateFormatterPuzzle[3261:303] formatted item # 5 = 05/02/2012 Note that if you go to System Preferences -- Date and Time -- Time Zone and change your Time Zone to Rio de Janeiro, you will have the same results.

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  • Using CGContextDrawTiledImage at different zooms causes massive memory growth

    - by Jacques
    I'm working on app an where there's a view in a zoomable UIScrollView. When the user zooms in or out, I redraw the view that's in the UIScrollView to be nice and sharp. That view has a background image that I draw with CGContextDrawTiledImage. I noticed that memory usage grows every time I switch to a new zoom level. It looks like CGContextDrawTiledImage keeps a cache somewhere of the image scaled to different sizes. So, If I go from 1.0 to 1.1x zoom, memory use grows. Going back to 1.0 doesn't cause it to grow, but then going to 1.05 and then 1.2 causes it to grow twice. Back to 1.1 and no growth. Of course, the zoom level is under user control so I don't have control over how many zoom levels happen. Right now my background image is kind of massive (512x512), so this causes memory usage to grow very quickly. It doesn't show up as a memory leak in Instruments, just additional allocations that never get freed. I've tried to find a way to free the cache that appears to be being created, but no luck. It doesn't seem to respond to low memory warnings, for example. I also tried setting the view's backgroundColor to a UIColor created with colorWithPatternImage, but that doesn't work because I'm doing the scaling by changing the graphics context's CTM, not by setting the view's transform. Any ideas on how to keep memory usage from blowing up?

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  • Have an object fade in and out of existance

    - by happyCoding25
    Hello, I have a view that sets its hidden when the user taps the main view. I need the view to fade in and out of existence so it looks smoother than just disappearing. Heres my code so far (It's inside a touches event): if (!isShowing) { isShowing = YES; myView.hidden = YES; //Needs to fade out here } else { isShowing = NO; myView.hidden = NO; //Needs to fade in here }

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  • Objective-C - Unloading loaded view when it is swapped

    - by teepusink
    Hi, What is the best way to do view management in a multiview application? Right now I have this ViewSwitcher method/function that comes from a custom delegate I created. The code is a whole bunch of if else like this MyViewController *c = [[MyViewController alloc] initWithNibName:@"MyViewController" bundle:nil]; c.delegate = self; self.myViewController = c; [self.viewHolder insertSubview:c.view atIndex:0]; [c release]; That works fine, but when I visited the function a second time, is there going to be 2 instances of MyViewController now or just 1? How do I unload MyViewController when I switch to another view? Or is there a better way to manage my views? Thanks, Tee

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  • How is an AppDelegate instanciated?

    - by pwny
    I have an iOS application for which I want to create a ViewController programmatically. I started an empty XCode project and modified the main method so it looks like this int main(int argc, char *argv[]) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; int retVal = UIApplicationMain(argc, argv, nil, @"MyAppDelegate_iPad"); [pool release]; return retVal; } The app is a Universal Application, MyAppDelegate_iPad is a subclass of MyAppDelegate, which is a subclass of NSObject <UIApplicationDelegate>. My problem is that the applicationDidFinishLoading method I've overridden in MyAppDelegate_iPad is never called (break point on the first line never hits). The method looks like this -(void) applicationDidFinishLaunching:(UIApplication *)application { window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; if(!window) { [self release]; return; } window.backgroundColor = [UIColor whiteColor]; rootController = [[MyViewController alloc] init]; [window addSubview:rootController.view]; [window makeKeyAndVisible]; [window layoutSubviews]; } I removed the line to link to a nib file from my plist file (I used to get the default "My Universal app on iPad" white screen) and now all that is displayed is a black screen. applicationDidFinishLoading is still not being called. Am I doing something wrong? How should I properly create my AppDelegate instance?

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  • How do I load PersistentDocuments into the same window

    - by Brad Stone
    I want to open NSPersistentDocuments and load them into the same window one at a time. I'm almost there but missing some steps. Hopefully someone can help me. I have a few saved documents on the hard drive. On launch my app opens to an untitled NSPersistentDocument and creates a separate NSWindowController. When I press the button to load file 1 off the hard drive the data appears in the fields but two things are wrong that I can see: 1) changing the data doesn't make the document dirty 2) choosing save updates the persistentstore (I know this because when I open the file again I see the changes) but I get an error: +entityForName: could not locate an NSManagedObjectModel for entity name 'Book' Here's my code which is in the WindowController that was launched initially with the untitled document. This code isn't perfect. For example, I know I should processPendingChanges and save the current doc before I load the new one. This is test code to try to get over this hurdle. - (IBAction)newBookTwo:(id)sender { NSDocumentController *dc = [NSDocumentController sharedDocumentController]; NSURL *url = [NSURL fileURLWithPath:[@"~/Desktop/File 2.binary" stringByExpandingTildeInPath]]; NSError *error; MainWindowDocument *thisDoc = [dc openDocumentWithContentsOfURL:url display:NO error:&error]; [self setDocument:thisDoc]; [self setManagedObjectContext:[thisDoc managedObjectContext]]; } Thanks!

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  • iPhone keyboard, Done button and resignFirstResponder

    - by nevan
    This is probably a dumb question, but I can't find the answer in the docs. Did the "Done" button on the pop-up keyboard always cause the keyboard to disappear? I see a lot of code around the web like this: - (BOOL)textFieldShouldReturn:(UITextField *)theTextField { [theTextField resignFirstResponder]; return YES; } When I press the "Done" button, the keyboard pops down and the UITextField resigns first responder. I'm presuming that pressing the "Done" button didn't used to cause a UITextField to resignFirstResponder, but that behavior changed at some time. I'm debugging on OS 3.0 - 3.1.3

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  • focus a NSTextField

    - by Jeena
    I have a NSTextField and I want to set its content if I klick on a button and than set the cursor on this textfield at the end of the text so if someone klicks the button he could just begin to type. Until now I use [NSTextField selectText] it selects this textfield but it selects the whole text so if someone just begins to type he'd lose all the text which alread is in the textfield.

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  • How to best share an NSMenu between multiple NSPopUpButton instances

    - by Frank R.
    Hi, I need to share the same NSMenu instance between multiple popup buttons. When I create an NSPopUpButton in IB, a new menu is automatically created and inserted as a child of the NSPopUpButtonCell. At the moment, I simply create an IBOutlet NSMenuItem* standardMenu member in my MainController and connect the "menu" outlets of the popup buttons to this, but this leaves the "fake" menus in the hierarchy. Surely, there's a clean way of doing this from inside IB? Thanks in advance for any advice you might be able to give.

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  • Can we send an two dimensional array as input for a function in Objective C.

    - by srikanth rongali
    I have data stored in two dimensional array. I want it to send in to a function in this way, I have written the following in another class. // do if( array[iTemp][1] != 10 ) { Enemy *enemyXX = [[Enemy alloc] init]; [enemyXX EnemyXXTarget: array[iTemp][1]]; iTemp++; }while( iTemp != 9); // -(void)EnemyXXTarget:(id)sender; is function declared in Enemy class. But is giving me an error error: incompatible type for argument 1 of 'EnemyXXTarget:' Where I am wrong ? Please help me. Thank You.

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  • Removing object from NSMutableArray

    - by Ben Packard
    Just a small query... I stumbled across the following shortcut in setting up a for loop (shortcut compared to the textbook examples I have been using): for (Item *i in items){ ... } As opposed to the longer format: for (NSInteger i = 0; i < [items count]; i++){ ... } //think that's right If I'm using the shorter version, is there a way to remove the item currently being iterated over (ie 'i')? Or do I need to use the longer format?

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  • Load image from server on a UIImageView in phone

    - by Pedro Narvaez
    Hi.. I'm having a problem loading a remote image into a UIImageVIew... It just doesn't show the image, may be i'm missing something... I also use the described here but with the same results How to load image from remote server on the UIImageView in iphone? Can someone help me? This is the code i'm using Im getting the data from a xml and on the image element I have the full path [[detailViewController detailImage] setImage:[UIImage imageWithData: [NSData dataWithContentsOfURL: [NSURL URLWithString: [NSString stringWithFormat:@"%@", [[promoList objectAtIndex: promoIndex] objectForKey: @"image"]] ]]] ]; With this code the image are displayed correctly [[detailViewController detailImage] setImage:[UIImage imageWithData: [NSData dataWithContentsOfURL: [NSURL URLWithString: @"http://localhost/promos/preview/1.jpeg"]] ]];

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  • NSDirectoryEnumerator And Subfolders

    - by Matthew Roberts
    I have an iPhone app that searches a folder, collates an an array of all the audio files, and lets them be played back. The problem is that if there is a subfolder within the folder I am searching, it will just skip over it/not go into its contents. My code is as follows: NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSDirectoryEnumerator *direnum = [[NSFileManager defaultManager] enumeratorAtPath:documentsDirectory]; NSString *pname; while (pname = [direnum nextObject]) { [musicArray addObject:[pname stringByDeletingPathExtension]]; } What I want to do is continue to search its subfolders, how would I go about doing that?

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  • NSBezierPath with transparent fill

    - by nosedive25
    I've got a NSBezierPath that needs to have a semi-transparent fill. When I fill it with a solid color, I get the expected result. However, when filled with a semi-transparent color I get a path with a rounded stroke but an odd, rectangular fill. It looks like: Instead of filling the entire area, I get a filled rectangle inside the stoke with a small, unfilled boarder. I set up my path as follows: NSBezierPath *menuItem = [NSBezierPath bezierPathWithRoundedRect:menuItemRect xRadius:3 yRadius:3] [menuItem setLineWidth:4.0]; [menuItem setLineJoinStyle:NSRoundLineJoinStyle]; [[NSColor whiteColor] set]; [menuItem stroke]; [[NSColor colorWithCalibratedRed:0.000 green:0.000 blue:0.000 alpha:0.500] set]; [menuItem fill]; If anyones got any ideas, that would be great. Thanks

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  • Converting RGB values to CMYK

    - by llk
    Hi all, I have RGB values that I need to convert into CMYK values. I'm using the iPhone SDK to try and do this. I have tried a couple of things, but cannot either get the values to be anything other than 0 or 1, or the K element is completely wrong (showing up as a negative number). Any help would be a life saver! Thanks in advance!

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  • NSTextField (Label) Attributed Text: Select

    - by huntaub
    I have a NSTextField Label that has attributed text in it. The color and size are different from the defaults. (The text is a bit larger and green) Now, I need to be able to select the text in the label so as the click the hyperlinks embedded in the attributed text. This works fine; however, when selecting the text the format of the text reverts back to the defaults (a smaller, black font). Is there anyway to stop this behavior so that my styling is preserved when the user clicks (selects text) on a Label?

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  • Optimize a views drawing code

    - by xon1c
    Hi, in a simple drawing application I have a model which has a NSMutableArray curvedPaths holding all the lines the user has drawn. A line itself is also a NSMutableArray, containing the point objects. As I draw curved NSBezier paths, my point array has the following structure: linePoint, controlPoint, controlPoint, linePoint, controlPoint, controlPoint, etc... I thought having one array holding all the points plus control points would be more efficient than dealing with 2 or 3 different arrays. Obviously my view draws the paths it gets from the model, which leads to the actual question: Is there a way to optimize the following code (inside the view's drawRect method) in terms of speed? int lineCount = [[model curvedPaths] count]; // Go through paths for (int i=0; i < lineCount; i++) { // Get the Color NSColor *theColor = [model getColorOfPath:[[model curvedPaths] objectAtIndex:i]]; // Get the points NSArray *thePoints = [model getPointsOfPath:[[model curvedPaths] objectAtIndex:i]]; // Create a new path for performance reasons NSBezierPath *path = [[NSBezierPath alloc] init]; // Set the color [theColor set]; // Move to first point without drawing [path moveToPoint:[[thePoints objectAtIndex:0] myNSPoint]]; int pointCount = [thePoints count] - 3; // Go through points for (int j=0; j < pointCount; j+=3) { [path curveToPoint:[[thePoints objectAtIndex:j+3] myNSPoint] controlPoint1:[[thePoints objectAtIndex:j+1] myNSPoint] controlPoint2:[[thePoints objectAtIndex:j+2] myNSPoint]]; } // Draw the path [path stroke]; // Bye stuff [path release]; [theColor release]; } Thanks, xonic

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  • Listen to HTML/CSS events of web page

    - by David Metcalfe
    I'm looking for a way to listen for an event in the HTML/CSS of a webpage. Basically, a website I use at work lists queues and appointments, which flag as yellow/red based on the amount of time late on taking said appointment. Other than this visual aide, there is no alert of any kind, which is a failing point if one is juggling multiple windows and doesn't notice. What I would like to do is put together a simple way to watch for the tag ID or perhaps the flag hex color, and then alert me in a way of my choosing. The work environment is on OS X, so I presume I'm looking at an Objective-C centric solution unless Applescript is capable of doing this. Any help would be greatly appreciated.

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  • Weird landscape UITabBarController Application startup

    - by Stefano Verna
    Hi there. My application is quite simple, but I have some problems when it starts. I setted in the Info.plist to be landscaped, but it seems to ignore the order. In fact, when the app is loading the Simulator is landscaped, but then it returns in portrait mode. This is the hierarchy of the views and controllers: MainViewController (extends UITabBarController just to override shouldAutorotateToInterfaceOrientation:) Three extended UITableViewControllers as tabs (also those have the shouldAutorotateToInterfaceOrientation correctly setted up). If I kinda force the orientation of the device to Landscape with: [[UIDevice currentDevice] setOrientation: UIInterfaceOrientationLandscapeRight]; Then for an instant the Simulator flashes in portrait mode, and then it goes landscaped. The problem is that in this way, the auto-rotation animations gets started, which is something I cannot tollerate. I just want a fixed, landscaped application. Any clues? Am I missing something?

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