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• Circular Dependency of Navigation Control in iPhone

  - by Taimur Hamza

  Hi everyone , In my view this is one of the strangest problem i have ever come across in iPhone app development. Let me explain the scenario , i have main screen 'A' on which i have a Button that directs me to another Screen say 'B'. Now on Screen 'B' i have a feature in which user can send a mail to his friend for promotion purpose e.g a user…

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• Preset value of HTML Forms - iPhone SDK

  - by laura

  Hi. I'm trying to preset the value of a dropdown menu and the value of a text box in an HTML form. As soon as the user taps the button in my iPhone app, it enters the webview and I was hoping to preset one of the dropdown menus and text field. How do I go about this? I want to set the dropdown to value "4" and the text field to "Giro Apps" …

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• iphone - using NSInvocation: constant value

  - by Mike

  I am dealing with an old iPhone OS 2.x project and I want to keep compatibility, while designing for 3.x. I am using NSInvocation, is a code like this NSInvocation* invoc = [NSInvocation invocationWithMethodSignature: [cell methodSignatureForSelector: @selector(initWithStyle:reuseIdentifier:)]];…

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• dialing on iphone/ipod touch not working with documented procedures

  - by dave

  I'm trying to set up an iphone app to the phone number of a various sports store using the tel:// url passing method- I am developing on an ipod touch- usually on the touch you see the error message "Unsupported URL - This URL wasn't loaded tel://99887766" when you try and dial a number. I cant get this message to appear on the simulator…

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• Loading 2 Singletons With Dependencies when an app is opened (appDelegate / appDidBecomeActive) iPhone SDK

  - by taber

  I'm trying to load two standard-issue style singletons: http://cocoawithlove.com/2008/11/singletons-appdelegates-and-top-level.html when my iPhone app is loaded. Here's my code: - (void) applicationDidFinishLaunching:(UIApplication *)application { // first, restore user prefs [AppState loadState]; // then, initialize the…

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• Designing DAOs around a JSON API for iPhone Development

  - by Bob Spryn

  So I've been trying to design a clean way of grabbing data for my models in iPhone land. All the data for my application is coming from JSON API's. So right now when a VC needs some models, it does the JSON call itself (asynch) and when it receives the data, it builds the models. It works, but I'm trying to think of a cleaner method…

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• Template compiling errors on iPhone SDK 3.2

  - by Didier Malenfant

  I'm porting over some templated code from Windows and I'm hitting some compiler differences on the iPhone 3.2 SDK. Original code inside a class template's member function is: return BinarySearch<uint32, CSimpleKey<T> >(key); where BinarySearch is a method inherited from another template. This produces the following…

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• stop background of iphone webapp from responding to swipes

  - by JoeS

  I'm making a mobile version of my website, and trying to make it feel as native as possible on the iphone. However, any background areas of the page respond to swiping gestures such that you can shift the page partway off the screen. Specifically, if the user touches and swipes left, for example, the content shifts off the edge of…

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• iPhone UISlider not visible

  - by John Qualis

  I want to add a UISlider to my app programmatically without using the IB. I am adding a UISlider to my UIViewController using the code below. However I don't see the slider when the view comes up. What am I missing? I am using iPhone SDK 3.1.2. Appreciate any help. @synthesize slider; .... - (void)viewDidLoad { ... ... slider =…

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• Pull To Refresh on iphone not working as expected

  - by Kleemann

  I have been using this: http://blog.leahculver.com/2010/12/iphone-pull-to-refresh.html to make the pull to refresh function in my app. But I cant see the text "Pull down to refresh...", "Release to refresh..." and "Loading...". All I've done is copy the files into my project, link against QuartzCore framework, and changed the…

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• OSS4 on Debian Squeeze

  - by mit

  Hi, I am trying to get OSS4 to work on a Debian Squeeze 64 bit machine with an usb sound adapter. There is no sound from this adapter at the present, although it worked just before on the previous installation. You can see the output of some commands here: $ sudo /etc/init.d/oss4-base restart Stopping Open Sound System:…

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• An offscreen MKMapView behaves differently in 3.2, 4.0

  - by Duane Fields

  In 3.1 I've been using an "offscreen" MKMapView to create map images that I can rotate, crop and so forth before presenting them the user. In 3.2 and 4.0 this technique no longer works quite right. Here's some code that illustrates the problem, followed by my theory. // create map view _mapView = [[MKMapView…

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• shouldStartLoadWithRequest is not called when using AJAX/XMLHttpRequest

  - by el_migu_el

  Hi, I am trying to send method invocations from JavaScript to Objective-C and vice versa. Everything works fine for window.location triggered urls, which are catched by shouldStartLoadWithRequest. Now if I try to use an AJAX call instead, shouldStartLoadWithRequest is not called. Is there a way to do this? Mainly I do…

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• UIScrollView frame size issue in Landscape Mode

  - by viper15

  I'm trying to make UIScrollView auto-resize and appear correctly in Landscape mode. Portrait mode works fine. Here's my code: - (void)viewDidLoad { [super viewDidLoad]; //=== load all the custom view NSMutableArray *controllers = [[NSMutableArray alloc] init]; int page = 0; [controllers addObject:[self…

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• how does presentPopoverFromRect work?

  - by Horace Ho

  I don't understand how to define the (CGRect)rect in order to control the position of popover, and the position of the arrow. For example, I have a 1004 x 768 view, how can I put the popover at lower right of the screen, and point the arrow at 700 (x) 1000 (y)? Thakns!

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• accessing layer from class

  - by Mike

  I am creating a rounded corner UIImageView, but this image is created inside a class, using among other instructions, these following: myImageView.layer.cornerRadius = 20.0; myImageView.layer.masksToBounds = YES; myImageView.layer.borderColor = [UIColor darkGrayColor].CGColor;…

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• UISegmentedControl makes UITableView slow/lag?

  - by Zac Altman

  So I have a nicely working UITableView consisting of 3 rows (each including and image, and a varying number of text fields). Now the 4th row has a UISegmentedControl. As soon as I added it, the UITableView lags/jumps/skips. When I take it away again, everything is smooth. How…

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• Outlets buggy, causing crash?

  - by Moshe

  I've been having issues with making outlets and I was wondering if there is a difference and what the difference could be... EDIT: Using Outlets seem to be causeing SIGABRT errors... // // hebOmer.h // tizkorPush // // Created by Moshe -...- . // Copyright 2010…

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• PHP and Objective C Communication

  - by meetS

  Hii, I have PHP script link,which responds YES or NO when we set post userName and emailID.I have used ASI framework. But it is not working....Here is my code....Thanks in advance... **NSURL *url = [NSURL…

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• How to intercept touches events on a MKMapView or UIWebView objects?

  - by Martin

  Hello, I'm not sure what i'm doing wrong but I try to catch touches on a MKMapView object. I subclassed it by creating the following class : #import <UIKit/UIKit.h> #import <MapKit/MapKit.h> …

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• The graphical elements of UIKit – what format are they?

  - by Ross

  For standard interface elements of the Apple's UIKit, how do apple store them? Are they stored as cocca touch code, pdf, images or other? Thanks Ross

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• Three Alternatives to Apple’s Flaky iOS Alarm Clock

  - by Jason Fitzpatrick

  If two iPhone alarm failures in less than three months (the Daylight Savings bug and the New Year’s bug) isn’t motivation to grab a 3rd party alarm app, we don’t know what is. Check out these…

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• Implement looped movement animation with tap to cancel

  - by Nader

  Hi All; My app is based around a grid and an image that moves within a grid that is contained within a scrollview. I have an imageview that I am animating from one cell to another in time…

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• Implement looped movement animation with tap to cancel

  - by Nader

  Hi All; My app is based around a grid and an image that moves within a grid that is contained within a scrollview. I have an imageview that I am animating from one cell to another in time…

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• cocoa - making a UIImageView class act like a UIButton

  - by Mike

  For some reason that will take too much time to explain, I have to create a UIImageView based class that has some properties of a button. Imagine a class like the UISwitch (no I cannot…

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