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• Analyzing CPU usage of an iOS application

  - by Mustafa

  I'm working on an application that constructs springboard like interface (like iPhone's home screen). I have multiple pages, and each page contains many subviews. Each subview is able to detect touch and hold event. Once a touch and hold event is recognized, all the subviews start to wobble. One of the problems that i'm facing is that the CPU usage shoots to 99%, when the subviews are in wobble state, and i change the page. Instruments has a tool by the name of "CPU Sampler". I'm unable to find good set of documentation for this tool. I don't know how to read the output generated by this tool. Can anyone give me a small tutorial or guidelines? Can i check which piece of code is responsible for the CPU activity?

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• Apple accusé de laisser divulguer des données privés d'utilisateurs d'iOS à des tiers, 4 éditeurs également visés par la plainte

  Apple accusé de laisser divulguer des données privés d'utilisateurs d'iOS A des tiers, quatre éditeurs également visés par la plainte Apple fait l'objet d'une procédure judiciaire qui l'accuse de fermer l'oeil sur les pratiques de certains éditeurs d'applications pour l'iOS qui transmettent, sans le consentement de l'utilisateur, des données personnelles aux annonceurs. Cette plainte a été déposée devant la Cour Fédérale de San Jose, en Californie, près du siège d'Apple, par un citoyen du comté de Los Angeles. Le plaignant cite également comme co-défendant les éditeurs d'applications Backflip, Dictionary.Com, Pandora, et The Weather Channel. Selon le peign...

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• Bug? Flash of white when changing orientation on iOS Safari [migrated]

  - by Baumr

  What causes the flash of white to the right of a responsive design when changing orientation from portrait to landscape on iOS? Try it on iOS6 Safari: Websites like this don't do it: http://html5boilerplate.com But this one does: http://www.initializr.com Something to do with re-processing (CPU lag) to fit a wider screen? It doesn't happen in Chrome for iOS6... Update: I just removed all img and from my testing site, but it still happens. This seems to happen with a lot of different websites out there. Is it a bug with their code, or a Safari for iOS bug? Others are completely immune to it...

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• APP CAN'T LAUNCH IN XCODE

  - by user2977180

  I'm beginning to code in xCode 5 and I'm doing a really simple app. I just began and, when I try to test my game with iOS Simulator, the main page opens, but when I click on the button to launch the game, I'm redirected to xCode and this appears: #import "AppDelegate.h" #import "AppDelegate.h" int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); } } and just next to it, this is written: Thread 1 : Signal SIGABRT I searched on internet and I just can't seem to find an answer. Could someone help me please???

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• Isuue when uploading new version to app store

  - by user2978997

  Can I use new certificate and provisioning profile to upload new version? We have discovered one or more issues with your recent delivery for "EMTV News". To process your delivery, the following issues must be corrected: Invalid Provisioning Profile - The provisioning profile included in the bundle com.pointabout.C1E322F0 (Payload/EMTV.app) is invalid. (Missing code-signing certificate.) For more information, visit the iOS Developer Portal. Once these issues have been corrected, go to the Version Details page and click "Ready to Upload Binary." Continue through the submission process until the app status is "Waiting for Upload." You can then deliver the corrected binary. Regards, The App Store team Note: I am using new Certificate and provisioning profile but same bundle ID which is being used in old version of the app.

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• iOS: Text translation from English to different language and visa-versa

  - by AppleDeveloper

  I want to translate English texts to different languages from my iPad App. These texts are generated dynamically from the front end website so I can use static mapping between English and other language. Basically I will receive line of text in English from the server and I want to convert it to iPad's Locale language settings and display it. Is there anyone I can achieve this? Can I use Google translator? Thanks.

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• L'exécution d'applications Web est ralenti sous iOS 4.3, comment ce problème peut-il être résolu ?

  Le rendu d'applications Web est ralenti sous iOS 4.3, comment ce problème peut-il être résolu ? Mise à jour du 18.03.2011 par Katleen Si vous faîtes parti des pionniers de la mise à jour qui sont déjà passés à iOS 4.3, dont la sortie est très récente, peut-être avez-vous remarqué quelques dysfonctionnements ? En effet, suite à divers plaintes et remarques déposées en ligne par des utilisateurs mécontents, les regards se sont tournés vers le système d'exploitation mobile qui semble mal s'en tirer avec les applications Web, au niveau de la fluidité. Une information qui vient d'ailleurs d'être confirmée par Apple, dont le porte-parole Trudy Muller a expliqué que les applications en ligne ...

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• json service from data scraping with php

  - by fredz0003

  I am trying to figure out what is the best way to make this work, I am new to php. I was able to make my script work to find specific data on my htm file with the following script tested on my local server. <?php include ('simple_html_dom.php'); //create DOM from URL or local file $html = file_get_html ('Lotto Texas.htm'); //find td class name currLotWinnum and store in variable winNumbers foreach($html ->find('td.currLotWinnum') as $winNumbers) //print winNumbers echo "<b>The winning numbers are</b><br>"; echo $winNumbers -> innertext . '<br>'; ?> Need some light here, ultimately I would like to create a web service to return json format and access that data from my iOS application using NSJSONSerialization class.

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• How can I add a header folder to my project?

  - by VansFannel

  I'm developing an iOS application with latest Xcode 4.5.2. I have the following folder structure: /.../SourceCode/MyProjectFolder/projectName.xcodeproject /.../SourceCode/MyProjectFolder/projectName/ /.../SourceCode/MyProjectFolder/projectName/xxx.m /.../SourceCode/MyProjectFolder/projectName/xxx.h /.../SourceCode/MyProjectFolder/projectName/PVRT/ /.../SourceCode/MyProjectFolder/projectName/PVRT/header1.h /.../SourceCode/MyProjectFolder/projectName/PVRT/OtherFolder/header2.h If in my header files I add this: #include "header1.h" I get a "header1.h" not found error. But, if I add: #include "PVRT/header1.h" I get a "header2.h" not found. On project settings I have add the following path: ${SOURCE_ROOT}/projectName/PVRT But I'm getting the same error. How can I fix this?

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• Loading HTML5 video on iPad via onclick event tied to a div

  - by joncys

  I'm developing an HTML5 application (a game), that automatically preloads 5 video files. I'm able to do so correctly on Safari for PC, so there are no overlooked problems with file formats, codecs or such. The load fails on an iPad. As an official guide for video on iOS puts it: This means the JavaScript play() and load() methods are also inactive until the user initiates playback, unless the play() or load() method is triggered by user action. In other words, a user-initiated Play button works, but an onLoad="play()" event does not. Does this mean, that I have no means to initiate the loading of video after a user initiated action, if that action hasn't been tied to a video element (user clicked on a regular div — I request loading and displaying of a video, compared to the user actually clicking on a video element to load and play that particular element)? Thanks for your help!

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• Hiding iAds when loading?

  - by Jesper Mansa

  I'm trying to make an ios app with an iAd in the bottom but lifted a little bit. It actually woks ok but when the iAd is loading it shows an white area just below where the iAd should be. When its done loading the iAd jumps up in the right position. I think normaly the button is loaded outside the screen and nthen pop ups when done but because mine add is liftet a little I can see the loading area... Is there a way to make the iAd load in the sides instead and then popin from the side? Here is what I have so far: frame.origin.x = ( _screenWidth - frame.size.width ) / 2; if( calculateForBannerOnBottom ) frame.origin.y = _screenHeight - (frame.size.height/1.2); else frame.origin.y = -_adView.frame.size.height+(frame.size.height/2.4); Hoping 4 help and thanks in advance :-)

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• Les applications Android réalisent 7% du chiffre d'affaires généré par celles d'iOS, Apple conserverait 85% des revenus du secteur

  Les applications Android ne génèrent que 7% du chiffre d'affaires des applications iOS Apple conserverait 85% des revenus du secteur, selon Piper Jaffray Le constat est sans appel. Android possède peut-être 50% du marché des OS mobiles, mais c'est Apple qui en retire 85% des revenus. C'est en tout cas la conclusion d'une étude de Piper Jaffray citée par le magasine économique Fortune. Ou, dit autrement, les applications Android réalisent 7% du chiffre d'affaires généré par celles de l'iPhone et autres iPad. L'explication tient également en une phrase : seules 1,3% des applications Android serait payées par les utilisateurs contre 13,5% pour iOS. Résultat, les développeurs s...

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• Default App Icon not appearing in iOS Simulator

  - by user577466

  I have searched quite a lot for an answer to this problem. If I have a general application, HelloWorld, and create an interface and then go to test it, then click on the Home button, not even the default grey/white icon is there like it's supposed to be. Anyone have any ideas why? I've even tried specifying a custom icon in the Info.plist file, but still nothing... I've got the latest version of Xcode and the SDK as well. (3.25 - 4.2)

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• Xcode puts Default.png in my plist as an Icon file when I assign a Launch Image

  - by xcode_nooob

  When I set a Launch Image, Xcode creates a copy as Default.png and creates an entry in my plist in Icon Files (IOS 5) / Primary Icon / Icon Items -- Item 1 : Default.png Item 0 : MyIcon.png is the app icon which I have already placed through the Target. The reason this is a problem is that the launch image then takes precedence over the actual icon and as a result, it shows as the primary icon instead of my actual icon image. Why is Xcode doing this? Can I safely delete the Default.png entry from my .plist? (this seems to fix the problem) Do I need to copy Default.png somewhere else? Thanks!

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• WebUIView is very slow

  - by Shamil

  Hello, I'm building a custom RSS reader app with incorporated feed link view (UIWebView). Using the following code, when the view, containing WebUIView is loaded, it takes about 6 seconds before anything is outputted to the user: -(void)viewDidLoad{ [super viewDidLoad]; NSString *urlString = [[[self appDelegate] currentlySelectedBlogItem]linkUrl]; NSURL *url = [NSURL URLWithString:urlString]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [_webview loadRequest:requestObj]; [_webview setScalesPageToFit:YES]; } Any ideas why UIWebView is being so slow? I've checked the URL input, it's clean and what I'd expect it to be. I'm building for iOS 3.0 as base deployment target.

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• La migration des applications Android/iOS sur Windows Phone bientôt possible ? Un brevet de Microsoft dévoile un service de transition

  La migration des applications Android/iOS sur Windows Phone bientôt possible ? Un brevet de Microsoft dévoile un nouveau service pour faciliter la transition vers son OS Le succès d'une plateforme mobile passe aussi par la qualité et la quantité d'applications disponibles sur sa galerie. Microsoft est conscient de cela, et a déjà développé plusieurs stratégies pour attirer les développeurs mobiles. La firme avait par exemple publié des outils pour aider les développeurs Android et iOS à porter leurs applications existantes sur Windows Phone, et faciliter la transition d'un écosystème vers sa plateforme. Mais la société n'a pas l'intention de s'arrêter là. Selon un dépôt d...

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• predict location of single-line text from a UITextView

  - by William Jockusch

  Is this possible? Specifically, I have a UITextView, and the text is short enough that it will fit on a single line. I want to predict where it will appear, so that (for example) if I wanted to, I could set up a UILabel that rendered the text in exactly the same location. Once I get that figured out, what I really want to do is pick contentInset and/or contentOffset so that the text of the UITextView and the left-justified UILabel will render in the same location. But I figure the above will let me do that. EDIT: In response to a comment, the fundamental problem I am trying to get around is that UITextField does not let you set the location of the cursor. It appears a lot of people have tried to get around this without success. I need to be able to move the cursor -- inserting/deleting text there is not enough. Control cursor position in UITextField Insert string at cursor position of UITextField Moving the cursor to the beginning of UITextField iOS -- dealing with the inability to set the cursor position in a UITextField

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• Un iPhone 5 pour septembre ? Il embarquerait un processeur double coeur A5 et iOS 5

  Un iPhone 5 pour septembre ? Il embarquerait un processeur double coeur A5 et iOS 5 Selon Bloomberg, Apple devrait lancer officiellement son nouvel iPhone (iPhone 4S ou iPhone 5) en septembre prochain. La prochaine version du smartphone sera équipée du processeur double coeur A5 déjà à l'oeuvre dans l'iPad2. Ce processeur devrait améliorer considérablement la vitesse d'exécution des applications iPhone. L'iPhone 5 disposera par ailleurs d'un appareil photo de 8 mégapixels au lieu de 5 sur l'iPhone 4. Côté OS, le smartphone sera équipé - sans surprise - d'iOS 5, dévoilé au début du mois lors du WWDC. Le nouvel OS, a...

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• Recognize active objects with a capacitive touch screen display

  - by lucgian84

  I'm trying to develop an app that can recognize an active object (for example: a memory) that touch the smartphone display. Before I start to develop I've to know if there's any objects that my touch screen display can recognize? Which device can be recognizable by a smartphone display? I'm interested to know that for iPhone or for Android phone. I found this app and you can see that with a card I can interact with a mobile device, now I'm asking you if anyone know how to do this kind of app with an iPhone or with an Android phone. Does anyone knows how to do that? There's a library (iOS or Android) to recognize object that I put over the display?

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• Regexp in iOS to find comments

  - by SteveDolphin23

  I am trying to find and process 'java-style' comments within a string in objective-C. I have a few regex snippets which almost work but I am stuck on one hurdle: different options seem to make the different styles work. For example, I am using this to match: NSArray* matches = [[NSRegularExpression regularExpressionWithPattern:expression options:NSRegularExpressionAnchorsMatchLines error:nil] matchesInString:string options:0 range:searchRange]; The options here allow me successfully find and process single line comments (//) but not multiline (/* */), if I change the option to NSRegularExpressionDotMatchesLineSeparators then I can make multiline work fine but I can't find the 'end' of a single line comment. I suppose really I need dot-matches-line-separators but I need a better way of finding the end of a single line comment? The regexp I have so far are: @"/\\*.*?\\*/" @"//.*$" it's clear to see if dot matches a line separator then the second one (single line) never 'finishes' but how do I fix this? I found some suggestions for single line that were more like: @"(\/\/[^"\n\r]*(?:"[^"\n\r]*"[^"\n\r]*)*[\r\n])" But that doesn't' seem to work at all! Thanks in advance for any pointers.

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• Level designing with Cocos2d and Box2d

  - by Majster

  I want to learn how to make levels using cocos2d and box2d (for iOS). I am talking about a 2d platformer such as Limbo or Braid or something like that. How can I design and build levels like this? I have seen Level Helper for cocos2d but its not free and I don't think it makes physic objects for box2d. How is this accomplished in real games? How to make camera move with character and so on. Any starting points would be much appreciated.

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• UIView animations on a path not linear

  - by chis54

  I have an iOS application that I want to animate a falling leaf (or several). I have my leaf image in an ImageView and I've figured out a simple animation from the documentation: [UIView animateWithDuration:4.0f delay:0 options:UIViewAnimationTransitionFlipFromLeft animations:^(void) { leaf1ImageView.frame = CGRectMake(320, 480, leaf1ImageView.frame.size.width,leaf1ImageView.frame.size.height); } completion:NULL]; This will make the leaf go from its starting position to the bottom right corner in a straight line. How would I animate this to follow a path or curve like a parabola or sinusoid and maybe even rotate the image or view? Would this be done in the animations block? Thanks in advance!

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• How to display tab bar in UIViewController

  - by Akrambek

  I have created tabbar based project in MT and I have following flow in my storyboard; Tabbarcontroller -> 1) MainViewController -> CustomerViewController; 2) SettingViewController The problem I am having is that when I use PrepareForSegue function in CustomerViewController and pointing it to MainViewController. Tab Bar UI is missing from MainViewController. I know that if I point to TabBarController it is going to be fine. But I need to pass some data exactly to MainViewController. Is there any way to make it. I am new in iOS and monotouch. Any suggestion appreciate.

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• AdMob arrive sur Windows Phone 7 avec un SDK, la plateforme publicitaire de Google adopte le HTML5 sur iOS et Android

  AdMob arrive sur Windows Phone 7 La plateforme publicitaire de Google adopte le HTML5 sur iOS et Android Google vient de lancer un nouveau Kit de Développement pour Windows Phone 7 en rapport avec AdMob, son réseau publicitaire sur mobile. Il annonce par la même occasion de nouvelles fonctionnalités pour les autres plateformes. Similaire aux autres kits de développements pour iOS, Android et webOS, le nouveau SDK offre aux développeurs Windows Phone 7 la possibilité de contrôler le type (textes ou bannières), l'apparence, la taille et le comportement des clics publicitaires intégrés à leurs applications (ouverture d'une page web, accès direct à l'App Marketplace, etc.).

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• How to use AutoLayout to position UIButtons in horizontal lines?

  - by thomers

  I need to create a couple of UIButtons programmatically in my app (iOS 6.0 and above). Each button should have the optimal width to display button label text (of various lenghts). I want to display the buttons in a "wrap around" style: Starting from the left edge, each button should be positioned next to each other horizontally (in a defined order), and if a button does not fit in the current "line", it should start a new line on the left edge below the previous line. I could manually calculate the frame of each button in my code, but should I use AutoLayout (with programmatically creates NSLayoutConstraints) instead? How exactly would I need to set it up?

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