Hello, I need to show a special menu when the dock icon is hovered. In order to do this I need to find a way to get the coordinate of the app icon in the dock. Do you know how I can get this info? Thanks and regards, ...
How can I optimise out this nested for loop? The program should go through each word in the array created from the word text file, and if it's greater than 8 characters, add it to the goodWords array. But the caveat is that I only want the root word to be in the goodWords array, for example: If greet is added to the array, I don't want...
I've set up a UISwipeGestureRecognizer: UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:delegate action:@selector(handleSwipeGesture:)]; swipe.direction = UISwipeGestureRecognizerDirectionUp; [self addGestureRecognizer:swipe]; [swipe release]; A swipe makes the player move in the direction of the swi...
I have an objective-c class, which has a string ivar which I need to change when a callback function is called. The trouble is that the callback is in c++, and I therefore cannot access the ivars of the objective-c class in that c++ function. The callback must be in c++ that, cannot change. I realize that there are other ways this could ...
Hi I am a newbie to objective C and was wondering how I could form an NSDictionary with the following structure. level 1 level attribute 1.1 - level score - level percent level attribute 1.2 - level score - level percent level attribute 1.3 - level score - level percent level 2 level attribute 2.1 - level score - level ...
Hello, I am looking for a high performance inter process communication system in macos X. What is the best system? AppleEvents or NSNotifications? Thanks :) ...
Hello, I have been reading about bit operators in Objective-C in Kochan's book, "Programming in Objective-C". I am VERY confused about this part, although I have really understood most everything else presented to me thus far. Here is a quote from the book: The Bitwise AND Operator Bitwise ANDing is frequently used for masking operat...
Hi There, Basically, here is my view hierarchy (and I appologize if this is hard to read... I'm new here so posting suggestions happily accepted) --AppControls.xib -------(UIView)ControlsView ----------------- (UIView)TopBar ----------------- -------------- btn1, btn2, btn3 ----------------- UIView)BottomBar ----------------- -...
I'm looking for a smart way to remove a subview (with removeFromSuperview) when the subview itself (or precisely said one of its components) triggered the removal. As for the source code this would be like UIView * sub_view = [[[UIView alloc] initWith... UIButton *button = [UIButton buttonWithType... [sub_view addSubview:button]; [se...
This is a bit complex. I've created an array (NSArray) called pointsOfInterest. The elements of this array are NSDictionary objects. Each dictionary has two keys, "headerTitle" and "rowObjects." The value for "headerTitle" is a simple NSString; the object for "rowObjects" is another NSArray of objects; each of these is a custom class. ...
Hi, I'm using a MapView. It works fine on the simulator but when I test on a device, the map doesn't seem to load. (or does load but takes a very long time sometime). All I do to use the MapView is just grabbing an instance on MapView and put it in the view through Interface Builder. Is there anyway I can do to force the map to load? ...
Hi, noob here wants to calculate compound interest on iPhone. float principal; float rate; int compoundPerYear; int years; float amount; formula should be: amount = principal*(1+rate/compoundPerYear)^(rate*years) I get slightly incorrect answer with: amount = principal*pow((1+(rate/compoundPerYear)), (compoundPerYear*years)); I'm...
If i create a simple class like this @interface table : NSObject { NSMutableArray *array; } @end and in the Init method I call: array = [[NSMUtableArray alloc] init]; and in the dealloc method I call: [array release]; but I have a memory leek because the dealloc method is never called. I must call the dealloc method by myself? ...
Hi, How can I draw lines between 2 pins on the MapView? Thanks, Tee ...
Why when I code I can do: NSString *test; test = @"stack"; test = @"overflow"; without any problems, NSString is not supposed to be immutable? ...
All I want is an integer which everytime my app opens is incremented by one. Is there an easy way to do this? Please help. Thanks, in advance. ...
if (win) { // Game was won, set completed in puzzle and time // Calculate seconds taken int timeTaken = (int)([NSDate timeIntervalSinceReferenceDate] - self.gameStartTime); int bestTime = [[self.puzzle valueForKey:@"bestTime"] intValue]; if (timeTaken < bestTime && bestTime != 0) { [self.puzzle setValue:[N...
How can I make a button that says "Show Picture" and when it's clicked it changes to "Hide Picture". I'm new to objective C, I know how to make a button in interface builder but don't know how to switch the button's text and function. Can someone help me out? ...
Hi, I want to save the filePath of an ImageAttachement in Core Data. The method addNewImageAttachementWithFilePath creates a new ImageAttachement and registers this at Core Data. Now I have the problem that the filepath is cut when the filepath of the imageAttachement is set. - (void) addNewImageAttachmentWithFilePath:(NSString *)fil...
I'm trying to call an objective-C function from a C function but the code keeps crashing in objc_msgSend. My objective-C class is a singleton and I'm using the following code. void c_function(int arg0, const char *arg1) { [[objc_class instance] testFunction:arg0 Arg1:arg1]; } The gdb shows the crash is happening when object...