I'm using Objective-C and Cocoa, whilst developing for Mac OS X - so not the iPhone/Cocoa Touch. (That said, I'd be interested if it was the same procedure for the iPhone) I'm working on a preferences window for a simple app. I have a NSWindow with a toolbar - there are 5 different items on the toolbar, all of which need to bring up a d...
Can somebody point me in the right direction for this. I've found lots of info on using c++ in obj c but not the other way around. I am making an iPhone game in c++ but need to tap into some of the features the iPhone has to offer. Thanks ...
Hello, I am trying to use NSXMLParser on the iPhone to parse a string that contains HTML, similar to the HTML shown below... <html><head><title>Working...</title></head><body><form method="POST" name="hiddenform" action="http://xxx/zfp"><input type="hidden" name="wa" value="wsignin1.0" /><input type="hidden" name="wresult" value=...
I've been googling this for days, and I'm pulling my hair out trying to get this to work. In my app, the very first view that loads is a view that has a login and signup button. Pressing the login button calls - (IBAction)login:(UIButton *)sender { LoginViewController *loginView = [[LoginViewController alloc] initWithNibName:@"LoginVi...
I am using iPhone SDK 3.2. I have drawn some lines on an UIView like road on a small city and added that as subview to the main view window(controller view). Now I need to zoom it from different point of view like a more specific aria of that city. FYI: I am a new programmer in Obj-C as well iPhone app development. ...
I'm at a loss with an UIImageView that I load into a scroll view. The original jpg Image has 1600 x 2000 pixels. In Interface builder I set the image frame to 1600 x 2000. When I run it and NSLog the image bounds I get a bounds size of 1603.565 x 1830.737 (?)!. The image also doesn't really reach down to the end, but takes an actual s...
I have created a new iPhone "View-based Application" in Xcode. I then added a new "UIViewController subclass" and checked the "with XIB for user interface. Now the issue I have is that after hooking up all the variables and message handlers, I cannot push the new controller onto the stack using the following code: [self.navigationContro...
Hi all, I'm having a problem with performSelector. It works if I call a method without parameters, but it doesn't even call the method if I pass a parameter. Example: - (void)test { NSLog(@"test"); //it works!! } ... [self performSelector:@selector(test) withObject:nil afterDelay:1.0]; - (void)switchOn:(NSNumber *) index { NSL...
hi, how can I push a new view onto the stack of a NavigationController from a UIScrollView? I tried [self.navigationController pushViewController:myNewViewController animated:YES]; but get "navigationController not in structure or union". regards ...
Can I, in the GNU Objective-C runtime, attach semi-arbitrary pieces of data to instance variables? Challenge: I'm currently working on a kind of Cocoa workalike for Linux, as a sort of pet project. (Please, let's not get sidetracked by all the "use GNUStep" stuff. I know about it, but it doesn't suit my needs. Moving on…) For this purp...
I was going through Apple's documentation & I saw something like this (void (^)(void)). Can somebody explain what this statement means. ^ is XOR right... void XOR void doesn't makes much sense to me ...? There was also something like (void (^)(BOOL finished)) ...
I am parsing some XML from an RSS feed (using NSXMLParser) for a blog and would like to display the data for each post in a table cell. The XML looks like this: <item> <title>Blog post 1</title> . . </item> <item> <title>Blog post 22</title> . . </item> How would I store this data so that it is available to my ...
I added a subview using myViewController *myVC = [[myViewController alloc] initWithNibName:@"myView" bundle:nil]; [self addSubview:myVC.view]; [myVC release]; how can I remove it again from a myViewController method ? I tried [self.view removeFromSuperview]; but that doesn't work ...
I'm still new to Objective C syntax, so I might be overcomplicating this, but I can't seem to figure out how to pass an NSTimeInterval to a thread. I want to initiate a thread that sleeps for x seconds parameter sent from main thread as follows: [NSThread detachNewThreadSelector:@selector(StartServerSynchThread) toTarget:self withObje...
I have create a project based on Utility Application. How to attach Navigation Controller on the FlipsideViewController? I want to create a lot of views with different screens. ...
Hello. I'm developing an iPhone application. I have a class that inherits from UIView. It has a method to add two UILabels and one UIImageView as subviews of the class. The UILabels and UIImageView are created and destroyed on that method. When I release this custom class it fails on [super dealloc] call on its dealloc method. The de...
I have a UIButton which I've added in IB, however the view behind this button changes color and I need to switch the button's type between InfoDark and InfoLight. Bizarrely though, buttonType property is read only. So how can i switch between light and dark info buttons? ...
Tearing my hair out trying to get the most simple of tutorials to run, from the book 'Head First iPhone Development' Have a UIPickerView which is bound to an array of objects. That is all. It doesn't do anything, all I want it to do (for now) is to display whats in the array. I've followed the steps in the book word for word, and restar...
I have a UIScrollView with an Image subView. I subclass touchesEnded to add a dialog box as a subView as follows: - (void) pushInfoBox { // the following line is referred to "myVC Caller" below myViewController *myVC = [[myViewController alloc] initWithNibName:@"myView" bundle:nil]; [self addSu...
I have an NSArray of NSNumbers and want to find the maximum value in the array. Is there any built in functionality for doing so? I am using iOS4 GM if that makes any difference. ...