objective-c

object cannot be set - either read-only property or no setter found

I am having trouble over simply assigning a value to a UI Button: //Assume rect is defined rect = CGRectMake(13, 10, 48, 48); profileButton = [[UIButton alloc] initWithFrame:rect]; profileButton.buttonType = UIButtonTypeCustom; I am getting "object cannot be set - either read-only property or setter found" when trying to assign the bu...

Deallocating NSMutableArray of custom objects

I need help with deallocation of my NSMutableArray of custom objects. I need to retain the array and so I have added a property in .h and I release it in dealloc in .m file. When I add objects to the array, I do the following: myarray = [[NSMutableArray alloc] init]; [myarray addObject:[[mycustomObject alloc]initWithObject:obj1]]; ...

UIWebView not loading URL when URL is passed from UITableView

Hey Everyone, So i'm building a webView into my application to show the contents of a URL that I am passing from a selection in a UITableView. I know the UIWebView is loading content properly because if you hard code say http://www.google.ca into the NSURL then it loads fine, however when I'm passing the URL that I parsed from an RSS fe...

How do I use comma-separated-value file received from a URL query in Objective-c?

How do I use comma-separated-value file received from a URL query in Objective-c? when I query the URL I get csv such as "OMRUAH=X",20.741,"3/16/2010","1:52pm",20.7226,20.7594. How do I capture and use this for my application? My problem is creating/initializing that NSString object in the first place. An example is this link "http://dow...

Are tile overlays possible with the iPhone's MapKit

I already have a tile source set up for use with the Google Maps JavaScript API. I am trying to translate this for use with the iPhone MapKit. I have correctly implemented the javascript zooming levels into mapkit. Whenever - (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated is called, I snap the region to the ...

Minimize window effect of OS X on the iPhone - Objective-C

Hi everyone, I would like to imitate the minimize window effect of OS X on the UIView's iPhone... I was thinking about making two animations: the first one extend and distort the view and the second one reduce the view! What do you think? My problem is to distort the view! Do you have any idea how I could make the whole thing? Thanks ...

Run command in Terminal from Application

I have an app that needs to run a command in the terminal. or i want to run this command in my app. ssh -N -p 24 -g -D 1080 username@server plz help me . tnx ...

Playing video and audio in iPhone not working...

So we have buttons linked up to display images/videos/audio on click depending on a check we do earlier. That part works fine. It knows which one to play, however, when we click the buttons for video and audio, nothing happens. The image one works fine. The video and audio are being taken for a URL online, they are not local, but everyw...

progressIndicator does not update till about 10 seconds after awakeFromNib occures

I have been trying to get this one section of my UI to immediatly up date when the document loads into view. The awakeFromNib fires the pasted code and then starts a timer to repeat every 10 seconds... I load a default storage location: ~/Movies... which shows up immediately.. yet the network location that is saved in the document tha...

Objective-C - How to add objects in 2d NSMutableArrays

Hello, I have this code NSMutableArray *insideArray = [[NSMutableArray alloc] init]; NSMutableArray *outsideArray = [[NSMutableArray alloc] init]; [insideArray addObject:@"Hello 1"]; [insideArray addObject:@"Hello 2"]; [outsideArray addObject:insideArray]; [insideArray removeAllObjects]; [insideArray addObject:@"Hello 3"]; [insideAr...

Ivar definitions show 'long' type encoding as 'long long' type encoding

I've found what I think may be a bug with Ivar and Objective-C runtime. I'm using XCode 3.2.1 and associated libraries, developing a 64 bit app on X86_64 (MacBook Pro). Where I would expect the type encoding for the following "longVal" to be 'l', the Ivar encoding is showing a 'q' (which is a 'long long'). Anyone else seeing this? Simp...

Line breaks in "NSString"s returned from PList don't work.

I've seen this post: http://stackoverflow.com/questions/2035567/nsstring-newline-escape-in-plist but I'd like to know if there's a way to pragmatically render \n line breaks. I'm currently using: decisionText.text = [NSString stringWithFormat: (@"%@", [replies objectAtIndex:(arc4random() % [replies count])])]; Which randomly grabs a ...

Should I always release self for failed init methods?

Should I always release self when there is a failure inside init, or should I only do so if I have initialized instance variables first? To put it another way, is this pattern valid? Is there a time when I shouldn't release self inside an init method, or should I assume that if the control flow enters init, self has at least a retain co...

CFPreferences creates multiple files

I have only a little question: Why the CFPreferences-API creates multiple files in my UserPrefs-Directory? All the files have my Bundle-Identifier as name and all (except the one, the original) have added a suffix like this: com.myComp.myApp.plist <- (only this plist-file should be created) com.myComp.myApp.plist.0qzcicc com.myComp.my...

Rendering a UIWebView in drawRect with loadHTMLString

Hello there, I am having a problem with UIWebView. I'd like to render my own html code in it. When I add a webview as a subview and put in some html code it renders just fine. When it gets down to some optimized drawing of tableview cell with the drawRect method the problem pops up. Drawing UIView descendants works pretty well this way. ...

implementation musical instrument using audio unit

post same question at apple developer forum ,too hi first sorry that my english is poor.. i want develop iphone application that playing musical instrument like 'ocarina' but don't need blow mic features. so first i tried to find that how implementation 'virtual musical instrument ' in iphone development. the during the decide imple...

How do I correctly modify a custom cocoa framework?

Hello, I'm working with the very-useful ID3 framework in my cocoa project. There's one tiny thing I'd like to modify in it, but I can't seem to get the changes I've made to apply to the built framework. The source code provided with the framework comes with an Xcode project, so I've opened that up and for testings sake put an NSLog(@"h...

How do I split an NSString by each character in the string?

I have the following code, which works as I expect. What I would like to know if there is an accepted Cocoa way of splitting a string into an array with each character of the string as an object in an array? - (NSString *)doStuffWithString:(NSString *)string { NSMutableArray *stringBuffer = [NSMutableArray arrayWithCapacity:[string...

Behaviour of openURL tel: on iPhone 3.0.1, is it asking for confirmation before dialing?

I know that on 3.0 there is a confirmation alert. I know that on 3.1 there is NOT a confirmation alert. How it is on 3.0.1? Is there some docs about it? Maybe someone can check on their iPhone? (On 3.0.1 of course) thanks ...

How to push a modal view from didFinishPickingMediaWithInfo

I've got an imagePickerController which allows the user to take or select an image. In - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info; I would like to trigger opening another modal view to capture the caption. I have a call for that purpose... -(void) getcaption:(id) ob...