If I alt-double-click on a method name in Xcode, I get taken to the method documentation. Often, there are multiple methods with the same name (one example is scrollEnabled, which gives me 9 results). If the one Xcode shows me isn't in the class I want, how can I get to the next result? The back button doesn't work for this. ...
Being a somewhat newbie to iPhone development I started debugging some code attempting to find my mistake. When I attempt to p tlEntries from the debugger I get the <variable optimized away by compiler> message while stopped on the if statement. The following is my code: NSArray *tlEntries = [[NSArray alloc] initWithArray:[self fetch...
Hi, how do I connect to Sharepoint (e.g. fetching lists) through Cocoa? Is there any blog post or document about it? Regards, Stefan ...
Hi Guys, I want to get this structure CGPoint addLines1[] = { CGPointMake(30.0, 150.0), CGPointMake(41.67, 145.19), CGPointMake(53.33, 103.25), CGPointMake(65.0, 131.67), CGPointMake(76.67, 106.11), CGPointMake(88.33, 110.20), CGPointMake(100.0, 111.54), CGPointMake(111.67, 112.13), CGPointMake(123.33, 115.66), CGPointMake(13...
How to write lambda methods in Objective-C ? ...
Apple provides the NSArchiver and NSUnachriver for object serialization / deserialization, but this can not handle any custom xml schema. So filling an object structure with the data of any custom xml schema has to be made manually. Since the iPhone developer community is rapidly growing, a lot of newbie programmer are despairing to deal...
Hii all, m trying to make a 2d byte array . can any body give the code how to declare a NULL 2d byte array in Obj C for iPhone? Thanks all. ...
Hi, I am currently developing an iPhone game that has numerous animations using image sequences (jpg and png with transparencies). Using Instruments to view Leaks and Object Allocations, the most I've seen the object allocations go up to is less than 500k. However, the program still crashes and quits unexpectedly when we switch from one...
I have a UIWebView in a viewcontroller, which has two methods as below. The question is if I pop out(tap back on navigation bar) this controller before the second thread is done, the app will crash after [super dealloc], because "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result...
Ok so I am still kind of trying to get my bearings in Objective-C and I thought I had it down but now I cam across this method. So there are is something that confuses me that I would like a detailed explanation on if possible. The first line: 'UITouch *touch = [touches anyObject];', now to my understanding anyObject is a hashtable? B...
From what I have gathered from internets the MPMoviePlayerController class doesn't support small video playback. So, in an effort to beat a dead horse I was wondering what kind of methods could be used to get a small video playing in a corner of the screen without interrupting the rest of the screen. So far we've come across two solutio...
I'm working through a somewhat tricky iPhone crash, and it looks like the culprit is an NSString being prematurely released. I've switched on NSZombiesEnabled and can see that the NSString is a zombie at the time of the crash. However, I can't determine when the object is being released/dealloced--I've combed through my code looking for ...
How would you make a button display a window in the same Nib File when it is clicked? Sorry If This Is Vague. ...
I'm having trouble with enum visibility in an Objective-C program. I have two header files, and one defines a typedef enum. Another file needs to use the typedef'd type. In straight C, I would simply #include the other header file, but in Objective-C, it's recommended not to use #import between header files, instead using forward @class...
I want to show a total inside a toolbar. I put in IB the UILabel on top of the toolbar . However, when I run the app, the UILabel is totally invisible (but can set values on code fine). The most bizarre thing is that in other form, all work fine. I don't see why in one form work but not in another... Any idea in how fix this? Or why i...
I'm trying to develop a complex painting application on the iPhone. I'm currently drawing using Quartz (e.g. CGContext...). Unfortunately the Quartz overhead is just too slow for the type of drawing I'm doing, and I'm porting to OpenGL calls using the GLPaint example as a reference point. Is there a way to get a UIImage/CGImage from t...
Say I have a FooController subclass of UIViewController that displays a list of Foos. What's the best practice for dealing with my foo property's lifecycle? Do I define the @property as being read/write? It's not really -- once it's been set, changing it would potentially result in inconsistent state. Do I create the @property as readon...
I'm trying to unit test objective-c classes built in the MinGW shell. Since OCUnit has been embraced by Apple for XCode, it seems that the developer, Sen:te, has now focused on that. So, the last source distro that claims to support GNUstep is v27. Anyway, I downloaded the v27 tarball and tried to build in MinGW. You first have to bu...
Hi all, I have an NSTimeInterval, and I'd like to know whether that timestamp falls between the start and end of a date. Basically I need to be able to do something like: NSDate *today = [NSDate date]; NSTimeInterval myInterval = someInterval; [date returnYesIfFallsThisDate:myInterval]; Is there a straight forward method to figure o...
I've been reading up on RAII and single vs. two-phase construction/initialization. For whatever reason, I was in the two-phase camp up until recently, because at some point I must have heard that it's bad to do error-prone operations in your constructor. However, I think I'm now convinced that single-phase is preferable, based on quest...