I am making an app that will play sound on events but I can't figure out how to access files from the ressources folder of the Application. Here is what I'm doing : NSSound *player = [[NSSound alloc] initWithContentsOfFile:@"Sound.mp3"] byReference:NO]; [player play]; But it's not working at all. If I put a full length path it wil...
I'm currently trying to learn objective-c using XCode 3.1. I've been working on a small program and decided to add unit testing to it. I followed the steps on the Apple Developer page - Automated Unit Testing with Xcode 3 and Objective-C. When I added my first test, it worked fine when the tests failed, but when I corrected the tests...
Is there an easy way to sort an NSMutableArray of NSMutableArrays containing NSStrings? I am sure that there must be an easy method for doing this but I can't seem to find it. To Clarify I want to sort the first array alphabetically by the NSString at index 3 of the sub array. ...
I am added uitextfield into uitableviewcell using this code textField=[[[UITextField alloc]initWithFrame:CGRectMake(5, 10, 290, 70)]autorelease]; textField.delegate=self; textField.keyboardType=UIKeyboardTypeURL; textField.autocorrectionType=YES; textField.textColor=[UIColor blackColor]; textField.placeholder=@"Enter feed url"; [cell.co...
I've set up an Objective-C category for an iPhone app's UIImageView class. The category's mission is to help load URL-based images asynchronously with memory/disk caching. Now, in UIImageView+Cache.m I have access to an NSOperationQueue so I can kick off a loading thread. I create an NSOperation-derived object, initialized with the imag...
I am attempting to look at the SSLContext in a CFReadStream. secureTransport has lots of useful methods for examining a SSLContextRef like SSLGetEnabledCiphers, but I don't have a good way to get a SSLContextRef from CFReadStream. Is there some sort of getter method for SSLContextRef in CFNetworks? ...
I'm a newbie just begun with iPhone and Obj-C for a month now. I have two buttons, both of them call the same function as follows [play addTarget:self action:@selector(showQstn:) forControlEvents:UIControlEventTouchUpInside]; Inside the function showQstn, I want to know what button was tapped. Any idea? Alternate ideas are welcome to...
I want to strip a Unicode character (\u0097) from NSString.... ...
I am iterating through an NSArray that contains many different types of objects. There are many methods to figure out what class the object is. However, I haven't been able to find a good way to find out if an object can implement a particular function. I can put it in a try-catch but it will still output an error message in the console ...
I'm a bit puzzled: From Cocoa Programming For Mac OS X (page 63, 3rd edition, Aaron Hillegass): "If it reaches the top of the [inheritance] tree without finding a method, the function throws an exception". From the Wikipedia article on Objective-C: "the object to which the message is directed (referred to as the receiver) is not inhere...
Hey guys, I've been looking into using the UIPageControl for a scrolling part of an application, and I was wondering how it works. The docs show methods for changing pages, setting the number of pages etc., but by itself the page control doesn't encompass any kind of scroll view. Are the UIPageControl and UIScrollView classes supposed ...
i have a string like this nsstring *mystring=@"RahulVyas"; now i want to add this ' so the new string would be 'RahulVyas' any way to do this? ...
Is there a method that I can override in my custom classes so that when NSLog(@"%@", myObject) is called, it will print the fields (or whatever I deem important) of my object? I guess I'm looking for the Objective-C equivalent of Java's toString(). ...
I am trying to convert from an int to a string but I am having trouble. I followed the execution through the debugger and the string 'myT' gets the value of 'sum' but the 'if' statement does not work correctly if the 'sum' is 10,11,12. Should I not be using a primitive int type to store the number? Also, both methods I tried (see comm...
First of all, I found this: http://stackoverflow.com/questions/659602/objective-c-html-escape-unescape, but it doesn't work for me. My encoded characters (come from a RSS feed, btw) look like this: & I searched all over the net and found related discussions, but no fix for my particular encoding, I think they are called hexadecima...
I am using the BLIP/MYNetwork library to establish a basic tcp socket connection between the iPhone and my computer. So far, the code builds and runs correctly in simulator but deploying to device yields the following error: error: property 'delegate' attempting to use ivar '_delegate' declared in super class of 'TCPConnection' ...
Is there a way to draw colored text using the UIKit addition for NSString on the iPhone? ...
I have just begun learning Objective-C, coming from a VB .Net and C# .Net background. I understand pointer usage, but in Objective-C examples I see the asterisk placed in several different places, and search as I might, I have not been able to find an answer as to why this is. Every search I try turns up all kinds of explanations about...
Hello, I would like to ask you about NSURLConnection in objective-c for iPhone. I have one app that needs to connect to one webservice to receive data (about YouTube videos), Then I have all the things that I need to connect (Similar to Hello_Soap sample code in the web). But now, my problem is that I create a class (inherits from NS...
I am using OS X 10.5 and I am looking for a way to detect if an application attempts to access the Internet. At this point I would like to block the application if it matches a set of rules that I will define. There is the ipfw Unix command that I realise can be used to block access to certain ports, but that affects ALL applications. I...