I've been learning to develop applications on the cocoa touch platform. I've come a long way but one piece that I can't wrap my head around is memory management. I thought I'd take a route of comparison rather than trying to start from scratch. I can't find much on the difference between the CLR (.net) and Objective-C 2.0 so I'm wonder...
I want to create a frame and fill it with a segmented control. How would i do this??? ...
How do you mask an image using paths? What Im trying to do is draw a line using CGContextStrokePath and show only those parts of a CGLayerRef which are under it. Also, how do you erase only those parts of the CGLayerRef which are under it? Thanks. ...
hi......i am new in iphone programming......i want to do an activation module which will send a http request with a PIN numbr and then read the response...if the response is "OK" it opens up with a main menu...........the problem is that i am recieving the response as "OK" but i am unable to compare it with a NSString @"OK"............so...
Does anyone know of one? If it doesn't exist, anyone interested in collaborating to create it? ...
I'm new to the iPhone and I would like to be able to use UIAlertView in a manner similar to the Windows MessageBox() or the MessageDlg() in Delphi. For example, I have a method that needs to ask the user for confirmation on something, and proceed based on their response. E.g. (pseudocode): -(void)doSomething { [doStep1]; [doStep2]...
i am getting this error "_CGRectZero", referenced from: _CGRectZero$non_lazy_ptr in RootViewController.o _CGRectZero$non_lazy_ptr in SecondViewController.o ld: symbol(s) not found collect2: ld returned 1 exit status Build failed (1 error) could someone tell me a solution to solve this? ...
What Is The Main Difference Between a View-Based Application Template And Window-Based Application Template In Iphone? ...
Hi I'm struggling to create a table view controller that has anything more than just a table view in it. I don't want to use a footer view, as I'd like a toolbar at the bottom of the page, and there are cases where there aren't enough rows in the table to put the footer at the bottom of the screen. The other issue with this is that the...
Hi, I have a UINavigationBar based application - only a one navigation bar that is handling all the work with views in my app. And I want to have a tab bar at a bottom part of every view that will take the user to whatever view he would like to go. What is the easiest way to add a tab bar to an application? Thank you in advance, Ilya....
I developed a flashcard program a while back for learning Japanese. I've been considering porting it to a cell-phone. What is a good target platfrom? I'm thinking about iPhone, HTC Touch HD (system software: Windows Mobile) or a Nokia (system software: Symbian). Since I know a bit of JavaME, something that runs that would also be cool. ...
Hi, I'm trying to give a newly created instance of a custom picker view controller a reference to another viewController like so (this is inside of a selector from a ponceViewController instance that is called after a tableView row is tapped)... - (IBAction)rowTapped:(id)sender { TimerPickerViewController *viewController = [[TimerPic...
Final Edit: This problem is solved, after I downgraded to SDK for iPhone 2.2, then deleted all the files in the Crash Logs in the Organizer window (then upgrade back to 3.0 beta 4). Apparently there were too many of Crash Logs associated with my iPhone (like 300+). Thanks you guys for insights! Original problem: After I update my iPhone...
Hi, In my app I have a tab bar. And in some views I as well have a toolbar. So when I come to those views with a toolbar it looks ugly - two bars at the bottom of the view. I thought that it would be a best solution to hide a tab bar when entering those particular views. But I just couldn't figure out how to do it in a right way. I trie...
Hey everyone, I'm curious, is it possible to somehow intertwine Core Animation to give a "fade out" of a UIBarButtonItem? I have a tableView which I represent with two different data sources. Once a particular data source gets triggered, I'd like to fade out the current UIToolBar options and fade in new ones. Thanks for pointing me in ...
Hi there, I'm developing an application which has a Settings pane, following the AppPrefs sample by Apple. If my application is named AppPrefs, this is the exact name/prompt/ title the Settings application will provide. Is there anyway to make this change? Can my executable somehow be named (for example) Application1 and my Setting...
Hi, I'm developing a number of application which have a Settings pane, following the AppPrefs sample by Apple. Within the Settings application, my settings appear in the same "group" with other applications. Anyone know of a way to do one of the following: Group all my application settings (e.g. App1 and App2) grouped under one...
HI. I need to write some text over a custom button. So I subclassed UIButton. In -drawrect, I write the text I need. The problem is that the text ends up under the button. After I write my text, UIButton's drawrect goes ahead and draws on top of me. I am not even calling [super drawrect: rect] even though I was anticipating calling...
I need help, I need to populate a tableview with objects from my array... I may be using some methods from mac code (lol). I just need some help. Here is my header and implementation files, thanks. #import <UIKit/UIKit.h> @interface Chuck_FactsViewController : UIViewController { IBOutlet UITableView *tableView; NSMutableArray *chuckJo...
I'm currently using CGContextDrawLayerInRect to draw a CGLayer in drawRect. This is called quite often. Is there any way to lessen the overhead by drawing only that part of the CGLayer which has changed instead of the whole CGLayer in drawRect? -(void)drawRect:(CGRect)rect { CGContextRef currentContext = UIGraphicsGetCurrentContext(...