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  • Signature invalid only for ad hoc

    - by brettr
    I'm not sure what changed on my ad hocs but I get this error when trying to install: Application failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate. (-19011) Device debug builds fine. The cert that is associated with my ad hoc provisioning profile doesn't expire until 2011. I've searched Google but haven't found any applicable solution, except some mention about deleting and recreating the certs. Before I go down that rode, has any one experienced and resolved this issue? I'm using Xcode 3.2.3 and building against sdk 3.0.

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  • Cannot hide a UIButton - Please help!

    - by Neurofluxation
    Hey again, I have the following code: visitSite.hidden = YES; For some reason, when I click a UIButton and call this piece of code, the visitSite button does not hide. The code is within this block: -(IBAction)welcomeButtonPressed:(id)sender { [UIButton beginAnimations:@"welcomeAnimation" context:NULL]; [UIButton setAnimationDuration:1.5]; [UIButton SetAnimationDidStopSelector:@selector(nowHideThisSiteButton:finished:context:)]; [UIButton setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES]; ((UIView *)sender).hidden = YES; [UIButton commitAnimations]; } and the stop selector below: -(void)nowHideThisSiteButton:(NSString *)animationID finished:(BOOL *)finished context:(void *)context { visitSite.hidden = YES; } I've also tried [visitSite setHidden:YES]; and that fails as well. ALSO I've noticed that the setAnimationDidStopSelector does not get called at all. Also, visitSite (when NSLogged) equals: <UIButton: 0x1290f0; frame = (0 0; 320 460); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x1290f0>> visitSite.hidden (when NSLogged) equals: NULL Any more ideas? :(

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  • How can I compare between web development technologies?

    - by Steve
    I would like experts to explain for me how can I compare between web development tools or technologies in order to be able to choose the right one. I'm tired from searching always in the regular way: X Technology vs Y Technology. I'm tired from peoples' biased opinions and usually I don't find a fair comparison. I have decided to put my question here about how can I compare them so you may identify to me the main standards for comparisons so I can compare them by myself and becoming able to choose the technology that is appropriate for the project I will develop. Note: in web development technologies I mean server side languages (e.g. PHP). One important requirement for me that can be defined as major one is cost efficiency and I mean that I don't care about the cost in the near future or the current cost, but what is more important for me is the cost in the future. If, for example, the site becomes one of the most 100 visited sites.   So, how can I compare the cost of different technologies for a future status of a site (such as being very famous site) so I can scale my option easily without missing a good technology like what happened with some sites when they chose not the most effective tool.

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  • UIPickerView not displaying

    - by 4thSpace
    I have a UIPickerView on a UIView. I've implemented its protocol and delegates in the .m file: <UIPickerViewDataSource, UIPickerViewDelegate> In IB, I've connected the above to the picker, which I also have an IBoutlet for. The methods look like this: - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView { return 1; } - (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component { return [self.arr count]; } - (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { return @"test"; } - (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component { //do something } Any ideas which piece I'm missing to get the picker working?

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  • How to better integrate a unix development environment into Windows

    - by SKenz
    I'm mostly a Windows user but I do most of my development (essentially web development) using unix tools and software. I've been going back and forth between using a dedicated lubuntu virtual machine on Virtualbox and using some tools directly in windows (msgit, python, django), but none of these approaches is entirely satisfactory. I'd like to hear of ways other devs use to better integrate a unix workflow into windows. For instance tighter integration between a linux and vm and windows. The vagrant demo showed how a VM could work off of a windows project folder and I found that nice. I'd like to hear of other tools and tips that would help mimic the workflow one can find on OS X (of course I understand that it cannot be as tightly integrated on Windows as it doesn't have the same unix underpinnings). PS: I have tried cygwin as well EDIT for clarifications about What I find lacking (thanks to axblount for pointing that out) : unix tools like msys et al do not work as well as their native unic counterparts. Many scripts, installers require further configuration or do not work at all. For instance getting virtualenvwrapper to work is not very straightforward. virtualbox: ideally I would like to use windows software (photoshop, sublime text 2) seamlessly with linux. I mostly use a FTP client atm to move over files edited on the windows side which is a tedious process.

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  • Cannot hide a UIButton

    - by Neurofluxation
    Hey again, I have the following code: visitSite.hidden = YES; For some reason, when I click a UIButton and call this piece of code, the visitSite button does not hide. The code is within this block: -(IBAction)welcomeButtonPressed:(id)sender { [UIButton beginAnimations:@"welcomeAnimation" context:NULL]; [UIButton setAnimationDuration:1.5]; [UIButton setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES]; ((UIView *)sender).hidden = YES; [UIButton commitAnimations]; visitWebsite.hidden = YES; //THIS DOESN'T WORK! } Help!!

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  • forwarding a notification to another class

    - by Mike
    I am using this method - (void)keyboardWillShow:(NSNotification *)notification that is triggered when the keyboard shows. When this method is triggered, it receives a notification that contains several parameters about the keyboard, as the animation duration, animation curve and frame. I need to forward this notification and all its parameters to another class. So, I've tried to do this inside keyboardWillShow: [[NSNotificationCenter defaultCenter] postNotificationName:@"doSomething" object:notification userInfo:nil]; the doSomething notification runs doSomething method on another class, and it has this form: - (void) doSomething:(NSNotification *)notification { but when I try to read the notification values on this other class, using, for example, myRect = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]; I obtain zero for all values. The notification is losing its parameters and not being forwarded. How can I do that? thanks.

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  • How to get a UIScrollView embedded within a UITableCellView to scroll?

    - by Zan
    I have a scroll view containing several images embedded within a custom cell view, it sometimes scrolls horizontally if I keep holding the cell for a while. I tried a lot of things and it doesn't seem to work, please help? Here's part of the CustomCell : UITableViewCell code: -(void) layoutSubviews { CGRect scrollViewFrame = CGRectMake(0, 0, 320, 200); self.scrollView.frame = scrollViewFrame; self.scrollView.backgroundColor = [UIColor whiteColor]; self.scrollView.contentSize = CGSizeMake((320*3), 200); self.scrollView.scrollEnabled = YES; self.scrollView.clipsToBounds = YES; self.scrollView.pagingEnabled = YES; self.scrollView.showsHorizontalScrollIndicator = NO; self.scrollView.showsVerticalScrollIndicator = NO; self.scrollView.scrollsToTop = NO; self.scrollView.delegate = self; self.scrollView.userInteractionEnabled = YES; // add 3 images to subview here pageControl.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.7]; pageControl.frame = CGRectMake(0, 170, 320, 30); pageControl.numberOfPages = 8;} I tested the code on a UIViewController and it works just fine, I'm guessing that this is caused by cell selection and I tried returning nil when the cell gets selected and that didn't work. I also tried passing touches to the scrollview and that didn't work either, please help?

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  • UIImageWriteToSavedPhotosAlbum showing memory leak with iPhone connected to Instruments

    - by user168739
    Hi, I'm using version 3.0.1 of the SDK. With the iPhone connected to Instruments I'm getting a memory leak when I call UIImageWriteToSavedPhotosAlbum. Below is my code: NSString *gnTmpStr = [NSString stringWithFormat:@"%d", count]; UIImage *ganTmpImage = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:gnTmpStr ofType:@"jpg"]]; // Request to save the image to camera roll UIImageWriteToSavedPhotosAlbum(ganTmpImage, self, @selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:), nil); and the selector method - (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { NSString *message; NSString *title; if (!error) { title = @"Wallpaper"; message = @"Wallpaper Saved"; } else { title = @"Error"; message = [error description]; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:message delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release]; } Am I forgetting to release something once the image has been saved and the selector method imageSavedToPhotosAlbum is called? Or is there a possible known issue with UIImageWriteToSavedPhotosAlbum? Here is the stack trace from Instruments: Leaked Object: GeneralBlock-3584 size: 3.50 KB 30 MyApp start 29 MyApp main /Users/user/Desktop/MyApp/main.m:14 28 UIKit UIApplicationMain 27 UIKit -[UIApplication _run] 26 GraphicsServices GSEventRunModal 25 CoreFoundation CFRunLoopRunInMode 24 CoreFoundation CFRunLoopRunSpecific 23 GraphicsServices PurpleEventCallback 22 UIKit _UIApplicationHandleEvent 21 UIKit -[UIApplication sendEvent:] 20 UIKit -[UIWindow sendEvent:] 19 UIKit -[UIWindow _sendTouchesForEvent:] 18 UIKit -[UIControl touchesEnded:withEvent:] 17 UIKit -[UIControl(Internal) _sendActionsForEvents:withEvent:] 16 UIKit -[UIControl sendAction:to:forEvent:] 15 UIKit -[UIApplication sendAction:toTarget:fromSender:forEvent:] 14 UIKit -[UIApplication sendAction:to:from:forEvent:] 13 CoreFoundation -[NSObject performSelector:withObject:withObject:] 12 UIKit -[UIBarButtonItem(Internal) _sendAction:withEvent:] 11 UIKit -[UIApplication sendAction:to:from:forEvent:] 10 CoreFoundation -[NSObject performSelector:withObject:withObject:] 9 MyApp -[FlipsideViewController svPhoto] /Users/user/Desktop/MyApp/Classes/FlipsideViewController.m:218 8 0x317fa528 7 0x317e3628 6 0x317e3730 5 0x317edda4 4 0x3180fc74 3 Foundation +[NSThread detachNewThreadSelector:toTarget:withObject:] 2 Foundation -[NSThread start] 1 libSystem.B.dylib pthread_create 0 libSystem.B.dylib malloc I did a test with a new project and only added this code below in the viewDidLoad: NSString *gnTmpStr = [NSString stringWithFormat:@"DefaultTest"]; UIImage *ganTmpImage = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:gnTmpStr ofType:@"png"]]; // Request to save the image to camera roll UIImageWriteToSavedPhotosAlbum(ganTmpImage, nil, nil, nil); The same leak shows up right after the app loads Thank you for the help. Bryan

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  • Need Help With Simple Counting Bug in iPhone SDK

    - by seanny94
    So I'm basically making an app that adds a count to a number and then displays it each time you tap the button. However, the first tap issued doesn't take any action but adds one (just as planned) on the second tap. I've searched to the ends of the earth looking for the solution with no luck, so I'll see what you guys can make of this. :) #import "MainView.h" @implementation MainView int count = 0; -(void)awakeFromNib { counter.text = @"0"; } - (IBAction)addUnit { if(count >= 999) return; NSString *numValue = [[NSString alloc] initWithFormat:@"%d", count++]; counter.text = numValue; [numValue release]; } - (IBAction)subtractUnit { if(count <= 0) return; NSString *numValue = [[NSString alloc] initWithFormat:@"%d", count--]; counter.text = numValue; [numValue release]; } @end

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  • A view "transparent" to touches in some areas

    - by Mike
    I have this transparent view that covers the whole screen. I using this view to group objects because I need to run them together around a specific anchor point. Lets call this view transparentView. At some point, transparentView contains two subviews. Two vertical bars full of icons, one on the left and one on the right of the screen. I need these bars and their icons to respond to touches, so I have to set transparentView setUserInteraction to YES. The area between the two vertical bars are totally transparent. transparentView is on top of other views and I need these other views to respond to taps but, the transparent area of transparentView are intercepting the taps and not letting them go thru to the view below. This transparent view is a UIImageView based class. I have tried to forward taps on that class, using - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self.nextResponder touchesBegan: touches withEvent:event]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { [self.nextResponder touchesMoved: touches withEvent:event]; } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { [self.nextResponder touchesEnded: touches withEvent:event]; } - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { [self touchesEnded:touches withEvent:event]; } but this is not working. How can I do that? thanks.

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  • Where can I find a list of pushViewController transitions?

    - by barfoon
    Hey everyone, Where can I find a list of transitions for bringing a new Viewcontroller onto the stack. My line of code is: [peoplePicker pushViewController:myDetail transition:6]; after selecting a contact. Where can I find a list of transitions, and why does "6" work correctly? Also I get a warning with this code saying it may not respond to transition, even though it produces the transition correctly. What is the proper way to do these animations? Thanks,

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  • Adding More Than 2 Delegates in iPhone App

    - by golfromeo
    This is a simple question that can be answered fast by someone who's more familiar with Objective-C than I am- how can one add more than 2 delegates to a Class? To clarify, I'm used to putting delegates in classes like this: @interface ViewController : UIViewController <UIWebViewDelegate> { ... When I try to put two delegates: @interface ViewController : UIViewController <UIWebViewDelegate> <UITextFieldDelegate> { ... ...the app gives many errors, none of which help with the situation. Is there a separator that I need to put between the delegates, or is it possible at all to have more than two? Thanks for any help in advance.

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  • Should Professional Development occur on company time?

    - by jshu
    As a first-time part-time software developer at a small consulting company, I'm struggling to organise time to further my own software development knowledge - whether that's reading a book, keeping up with the popular questions on StackOverflow, researching a technology we're using in-depth, or following the front page of Hacker News. I can see results borne from my self-allocated study time, but listing and demonstrating the skills and knowledge gained through Professional Development is difficult. The company does not have any defined PD policy, and there's a lot of pressure to get something deliverable done now! when working for consultants. I've checked what my coworkers do, and they don't appear to allocate any time to self-improvement; they just work at the problems they're given, looking up specific MSDN references, code samples, and the like as they need them. I realise that PD policy is going to vary across companies of different size and culture, and a company like my own is probably a bit of an edge case. I'd love to hear views and experiences from more seasoned developers; especially those who have to make the PD policy choices in their team or company. I'd also like to learn about the more radical approaches to PD, even if they're completely out there; it's always interesting to see what other people are trying. Not quite a summary, but what I'm trying to ask: Is it common or recommended for companies to allocate PD time? Whose responsibility is it to ensure a developer's knowledge and skills are up to date? Should a part-time work schedule inspire a lower ratio of PD time : work? How can a developer show non-developer coworkers that reading blogs and books is net productive? Is reading blogs and books actually net productive? (references welcomed) Is writing blogs effective as a way of PD? (a recent theme on Hacker News) This is sort of a broad question because I don't know exactly which questions I need to ask here, so any thoughts on relevant issues I haven't addressed are very welcome.

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  • How would one use Cocos2d to create a game like this.

    - by John Stewart
    http://itunes.apple.com/us/app/angry-birds/id343200656?mt=8&ign-mpt=uo%3D6 So I am getting started with this all game dev thing on iphone and I decided that I will start playing with Cocos2d as my starting engine. Now just so i have a goal in mind, I picked angry birds as my initial target of what sort of game play would I like to learn to build. This is not going to be a market release game. This is totally going to be learning purposes only. So to start off my question is: Would something like this be achievable using Cocos2d? How would I go about building the physics for this? How can one do a screen scroll like the way they do in cocos2d? (any example code would be great) This is just to start off. If you have any particular questions please do add to this question.

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  • Navigation bat not displayed at top of page. What's wrong?

    - by Eytan
    I'm having what appears to be a simple problem. I declare a navigation controller but the navigation bar that comes up is not displayed at the top of the page. http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs410.snc3/24784_889732028002_28110599_54506042_4580563_n.jpg I declare the navigation controller like so... UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:setupViewController]; [self.view addSubview:navController.view]; Any ideas?

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  • cocoa - IF failing for double?

    - by Mike
    I have a set of NSTimeIntervals like this: NSArray *mySet = [NSArray arrayWithObjects: [NSNumber numberWithDouble: time1], // [NSNumber numberWithDouble: time2], [NSNumber numberWithDouble: time3], nil]; // suppose that at this time // time1 = 0.00000 // time2 = 18.3200 // time3 = 21.6500 at some point in my code I want to test if currentTime is greater or equal to one of the times on the array, so I do // currentTime = 18.32 right now for (int i=0; i<[mySet count]; i++) { if (currentTime >= [[mySet objectAtIndex:i] doubleValue]) { NSLog(@"%d...", i); } } The output should be "1...2..." but the output is just "1..." when i = 1, it is comparing 18.32 to 18.32 and failing to recognize that the value is equal or greater than the other? WTF??? How can that be? thanks for any help.

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  • which touch event to use to slide an image??

    - by hemant
    i am using the following function to move a ball from one location to another wherever user touches the screen..right now i dont have an i-phone to test my application and i am new to i-phone application programming so i wanted to know does this event will also make the ball slide from one point to another wen user maintains the touch?? -(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch=[[event allTouches] anyObject]; CGPoint location=[touch locationInView:touch.view]; fball.center=location; }

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  • Change the background image in cocos2d

    - by Viral
    Hi all, I am making a game using cocos2d. in that I want to change the background after each second of time. I don't know how to do this in cocos2d. I am having 15 different images and one by one each image will be shown, i.e. after1 second next image will appear. I am new to cocos2d so, If any one can help me??? thank you in advance to all.

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  • Save downloaded content when in app purchase is complete

    - by jakob
    Hello experts! I have created an app which allows users to buy non-consumable content. The retrieving-ids-payment-process works like a charm. What i can't really figure out is how my content should be saved into the phone. The existing structure is that I have all my current content in Resources/packages/. For every package there is an matching entry in a package.plist. When the purchase is complete it is time to download the content from the server. What i retrieve from the server is a zip file with the new package that I have bought. My observer will call a method named provideContent: -(void) provideContent: (NSString*) productIdentifier { In here I will call my server and download the package } What i need from you guys is some sort of step by step walkthrough or tutorial of how, when the zip is retrieved(is zip allowed?), unpack this zip and add it to my current package structure. Thank you in advance

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  • Subclassing NSObject, can it cause problems?

    - by Sheehan Alam
    I have a very basic data class that is subclassed from NSObject. I declare a few strings, make sure they have properties (nonatomic, copy), and synthesize them. The only method I implemented was dealloc() which releases my strings. Can any memory problems arise from just this? Are there any other methods I need to implement?

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  • xmlCtxtGetLastError - Iphone

    - by Raphael Kohn
    Hi, I have been programming with NSXMLParser for quite a while and lately, I came out with this error. The strangiest thing is that it only happens in debug mode. Once I load the App in Simulator and run it from Simulator (without Xcode involved), it runs fine. The code is very straight foward, it is a simple XML parsing whose contents were loaded from the web in a separated thread. Does anybody have alredy encoutered that error?? Thanks in advance.

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