apple push notifications - Page 251

Error while creating in app purchase in itunes connect

- by MW

I'm having trouble while creating an In App Purchase in iTunes Connect. I have created a test user and am able to see the form for creating the in app purchase. However, when pressing 'Save' I get the following error message: "There was an error saving changes. Please try again later. If the problem persists, please contact us." This error has persisted for about 24 hours now. Have you encountered this problem, and do you know any way to get around it? Edit 2009-11-10: I just received a response from my email to Apple. It stated that they will start looking into it, and expect to have a solution within three business days. As soon as I hear something new, I'll post it here.

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AVURLAsset cannot load with remote file

- by Quentin

Hi, I have a problem using AVURLAsset. NSString * const kContentURL = @ "http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8"; ... NSURL *contentURL = [NSURL URLWithString:kContentURL]; AVURLAsset *asset = [AVURLAsset URLAssetWithURL:contentURL options:nil]; [asset loadValuesAsynchronouslyForKeys:[NSArray arrayWithObject:tracksKey] completionHandler:^{ ... NSError *error = nil; AVKeyValueStatus status = [asset statusOfValueForKey:tracksKey error:&error]; ... } In the completion block, the status is AVKeyValueStatusFailed and the error message is "Cannot Open". All exemples I have seen, use a local file, so maybe there is a problem using a remote file... Regards, Quentin

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Clip UITableView Cell's Separator

- by Drewsmits

I've been trying to build a view that looks similar to the "stocks" application (surprise). What I would like is to have the scroller bar outside of my rounded table view, shown in the image link below, but clip the cell separators. You can see how they overlap the scroller bar, which is annoying. I can't figure out how Apple put the scroller bar in a spot that looks like it is outside their table. Any ideas? (sorry, can't imbed images yet because I'm a new user). Scroller Problem Image

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how many fps can iPhone's UIGetScreenImage() actually do?

- by M Katz

Now that Apple is officially allowing UIGetScreenImage() to be used in iPhone apps, I've seen a number of blogs saying that this "opens the floodgates" for video capture on iPhones, including older models. But I've also seen blogs that say the fastest frame rate they can get with UIGetScreenImage() is like 6 FPS. Can anyone share specific frame-rate results you've gotten with UIGetScreenImage() (or other approved APIs)? Does restricting the area of the screen captured improve frame rate significantly? Also, for the wishful thinking segment of today's program, does anyone have pointers to code/library that uses UIGetScreenImage() to capture video? For instance, I'd like an API something like Capture( int fps, Rect bounds, int durationMs ) that would turn on the camera and for the given duration record a sequence of .png files at the given frame rate, copying from the given screen rect.

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Core Text's CTFramesetterSuggestFrameSizeWithConstraints() returns incorrect size everytime

- by nsapplication

According to the docs, CTFramesetterSuggestFrameSizeWithConstraints () "determines the frame size needed for a string range". Unfortunately the size returned by this function is never accurate. Here is what I am doing: NSAttributedString *string = [[[NSAttributedString alloc] initWithString:@"lorem ipsum" attributes:nil] autorelease]; CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString((CFAttributedStringRef) string); CGSize textSize = CTFramesetterSuggestFrameSizeWithConstraints(framesetter, CFRangeMake(0,0), NULL, CGSizeMake(rect.size.width, CGFLOAT_MAX), NULL); The returned size always has the correct width calculated, however the height is always slightly shorter than what is expected. Is this the correct way to use this method? Is there any other way to layout Core Text? Seems I am not the only one to run into problems with this method. See https://devforums.apple.com/message/181450.

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Python dictionary: add or increment entry

- by cursa

Hi everyone, I'm currently re-engaging with Python after a long absence and loving it. However, I find myself coming across a pattern over and over. I keep thinking that there must be a better way to express what I want and that I'm probably doing it the wrong way. The code that I'm writing is in the following form: # foo is a dictionary if foo.has_key(bar): foo[bar] += 1 else: foo[bar] = 1 I'm writing this a lot in my programs. My first reaction is to push it out to a helper function, but so often the python libraries supply things like this already. Is there some simple little syntax trick that I'm missing? Or is this the way that it should be done?

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DVCS and data loss?

- by David Wolever

After almost two years of using DVCS, it seems that one inherent "flaw" is accidental data loss: I have lost code which isn't pushed, and I know other people who have as well. I can see a few reasons for this: off-site data duplication (ie, "commits have to go to a remote host") is not built in, the repository lives in the same directory as the code and the notion of "hack 'till you've got something to release" is prevalent... But that's beside the point. I'm curious to know: have you experienced DVCS-related data loss? Or have you been using DVCS without trouble? And, related, apart from "remember to push often", is there anything which can be done to minimize the risk?

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Saving custom attributes in NSAttributedString

- by regulus6633

I need to add a custom attribute to the selected text in an NSTextView. So I can do that by getting the attributed string for the selection, adding a custom attribute to it, and then replacing the selection with my new attributed string. So now I get the text view's attributed string as NSData and write it to a file. Later when I open that file and restore it to the text view my custom attributes are gone! After working out the entire scheme for my custom attribute I find that custom attributes are not saved for you. Look at the IMPORTANT note here: http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/AttributedStrings/Tasks/RTFAndAttrStrings.html So I have no idea how to save and restore my documents with this custom attribute. Any help?

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locate the crash code from the crash log in my ip4 device

- by lu yuan

How could I locate the crash code from the crash log in my ip4 device? As the crashed thread 0 presents a serial frameworks and main.m, I couldn't locate the accurate code launched this crash and debug it. Any suggestion? Thanks in advance! Incident Identifier: B6BD84B7-CE0A-485D-A877-0FD0F5B75933 CrashReporter Key: b0b97a37f2a1e4911ce2ef34e1793e028463bb67 Hardware Model: iPhone3,1 Process: myApp [11615] Path: /var/mobile/Applications/28AE71F2-36CA-4A87-83D9-07DF2DFE74F1/myApp.app/myApp Identifier: myApp Version: ??? (???) Code Type: ARM (Native) Parent Process: launchd [1] Date/Time: 2012-06-09 21:12:22.792 +0800 OS Version: iPhone OS 5.1 (9B176) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000b Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x36721f78 0x3671e000 + 16248 1 MapKit 0x34e7ace6 0x34e68000 + 77030 2 CoreFoundation 0x3525f1f4 0x35247000 + 98804 3 Foundation 0x311b6740 0x31112000 + 673600 4 CoreFoundation 0x352d4acc 0x35247000 + 580300 5 CoreFoundation 0x352d4298 0x35247000 + 578200 6 CoreFoundation 0x352d303e 0x35247000 + 573502 7 CoreFoundation 0x3525649e 0x35247000 + 62622 8 CoreFoundation 0x35256366 0x35247000 + 62310 9 GraphicsServices 0x36552432 0x3654e000 + 17458 10 UIKit 0x3234ce76 0x3231b000 + 204406 11 myApp 0x0001bac0 main (main.m:16) 12 myApp 0x0001ba80 start + 32

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Restore VisualSVN server from client copy.

- by Kevin

I am running VisualSVN on a windows VM box. The VM crashed and corrupted the image. After restoring an older image (2007) we discovered that our data backup is not functioning properly. Hence I have a bunch of projects (~20) siting on my laptop (client side) and I want to push them back into the VisualSVN Server, which is now empty. I know this can be done by simply adding the project files manually, but this is going to take along time because I don't want to include every file (i.e. complied files). Any suggestions would be greatly appreciated.

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Best Geocoding Service for iPhone Developers

- by ckrames1234

I have made an app that gets an array of addresses from a web service and I want to map them. I know Apple left this out in MapKit, including only a reverse GeoCoder. I was wondering what the best way to approach this problem was. Web Service? Google Maps API (How do API keys work?)? CloudMade? What is your opinions on which service is fastest, easiest to use, and cheapest (hopefully free)? Thanks, Conrad Kramer

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Application with two UITabBarControls

- by kovpas

Hello, I want to create an app, whith the following structure: UITabBarController ..UINavigationController ....UITabBarController So, in other words, I want to load first UITabbarController as my main ViewController, that appears on application start, in its' first tab there's a UINavigationController with a table, which shows another UITabBarController by pressing on a table cell. I started Tab Based application, set first tab to UINavigationController, and its ViewController to my TableViewController. I also created second UITabBarController in Interface Builder. Created a separate class for this controller. Everything works fine at start - my first UITabBarController is shown perfectly, but when I'm trying to push my second UITabBarController, using my UINavigationController, it looks like nothing is loaded from a .xib file - there are just an empty TabBar and NavigationBar pushed. Seems, that something is wrong with an architecture, but I can't figure out the problem. Thanks in advance and I'm sorry for my poor English. Please let me know if something is not clear, I'll try to rephrase it :).

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Git fails when pushing commit to github

- by Steve Melvin

I cloned a git repo that I have hosted on github to my laptop. I was able to successfully push a couple of commits to github without problem. However, now I get the following error: Compressing objects: 100% (792/792), done. error: RPC failed; result=22, HTTP code = 411 Writing objects: 100% (1148/1148), 18.79 MiB | 13.81 MiB/s, done. Total 1148 (delta 356), reused 944 (delta 214) From here it just hangs and I finally have to ^C back to the terminal.

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Exception when creating new Iphone/Ipad window in MonoDevelop

- by Jones D R

I get this exception every time i try to create a new Iphone/Ipad solution? I have been following the guides and have both XCode, interface builder and IOS SDK installed. Any clues are welcome:) System.ApplicationException: Can't create display binding for mime type: application/vnd.apple-interface-builder at MonoDevelop.Ide.Gui.Workbench.NewDocument (System.String defaultName, System.String mimeType, System.IO.Stream content) [0x00000] in :0 at MonoDevelop.Ide.Templates.FileTemplate.CreateFile (MonoDevelop.Ide.Templates.FileDescriptionTemplate newfile, MonoDevelop.Projects.SolutionItem policyParent, MonoDevelop.Projects.Project project, System.String directory, System.String language, System.String name) [0x00000] in :0 at MonoDevelop.Ide.Templates.FileTemplate.Create (MonoDevelop.Projects.SolutionItem policyParent, MonoDevelop.Projects.Project project, System.String directory, System.String language, System.String name) [0x00000] in :0 at MonoDevelop.Ide.Projects.NewFileDialog.OpenEvent (System.Object sender, System.EventArgs e) [0x00000] in :0

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WebBrowser control not submitting form, IE 7 works

- by Joel Cunningham

We are using a WebBrowser control in our win forms application which is running in terminal services. IE 7 is the browser that is installed for the session. We are using WebForms to generate the web pages. If we try and submit a web page in the WebBrowser control it does not work. The submit button does not push down. If we try and submit a web page in IE 7 that is installed on the same machine it works as expected. This is only an issue for one person. The WebBrowser control is working for other users. Any thoughts on how I can debug why the submit button is not submitting for the WebBrowser control? Thanks in advance.

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Toggle Wifi On/Off using MobileWifi private framework

- by Ben Williams

Hello, For a private project using the iPhone SDK (not for the app store), I would like to toggle wifi on & off. I've done something similar for Bluetooth, but can't find the required information for Wifi. I assume I need to use the MobileWifi framework. Can anyone give some directions and/or code? Most likely I expect I need a header file for the MobileWifi framework as well. Note once again, this is not for the app store, as Apple will not allow apps that use private frameworks such as this.

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How a student programmer improve his teamwork skill?

- by Turtle

I am a student right now. Recently, I am working in a project as a leader with three other students. Due to the lack of experience, our project is progressing slowly and our members are frustrated. They do not feel sense of accomplishment in the project. I am pressured and frustrated, too. But as a team leader, I think I need to push them. But I do not know how to do. Do I help them solve coding problem or just encouragement? But if I pay too much attention on it, it would slow down my own progress. It is a not technical question, but it is very common in software development. I hope veteran programmers would give me some suggestions. Thanks!

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Core Location in iPhone Simulator 3.2 (iPad)

- by choise

So, i'm trying to port my app to iPad. I'm using CoreLocation. Apple says the iPad does have Location: Wi-Fi Digital compass Assisted GPS (Wi-Fi + 3G model) Cellular (Wi-Fi + 3G model) so it should be possible to get the position of my ipad (at least with 3g model) about 3km radius would be enought. but it doesnt work in simulator (3.2 ipad) (running 3.1.3 in simulator simulates me cupertino). is there a way to get the position in simulator (3.2 ipad) ? i live in germany and here the ipad isnt released yet, so i cannot test it on my device. thanks!

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NSURLConnection and Basic HTTP Authentication

- by Justin Galzic

I need to invoke an initial GET HTTP request with Basic Authentication. This would be the first time the request is sent to the server and I already have the username & password so there's no need for a challenge from the server for authorization. First question: 1) Does NSUrlConnection have to be set as synchronous to do Basic Auth? According to the answer on this post, it seems that you can't do Basic Auth if you opt for the async route. 2) Anyone know of any some sample code that illustrates Basic Auth on a GET request without the need for a challenge response? Apple's documentation shows an example but only after the server has issued the challenge request to the client. I'm kind of new the networking portion of the SDK and I'm not sure which of the other classes I should use to get this working. (I see the NSURLCredential class but it seems that it is used only with NSURLAuthenticationChallenge after the client has requested for an authorized resource from the server).

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Cocoa threading question.

- by Steve918

I would like to implement an observer pattern in Objective-C where the observer implements an interface similar to SKPaymentTransactionObserver and the observable class just extends my base observable. My observable class looks something like what is below. Notice I'm making copies of the observers before enumeration to avoid throwing an exception . I've tried adding an NSLock around add observers and notify observers, but I run into a deadlock. What would be the proper way to handle concurrency when observers are being added as notifications are being sent? @implementation Observable -(void)notifyObservers:(SEL)selector { @synchronized(self) { NSSet* observer_copy = [observers copy]; for (id observer in observer_copy) { if([observer respondsToSelector: selector]) { [observer performSelector: selector]; } } [observer_copy release]; } } -(void)notifyObservers:(SEL)selector withObject:(id)arg1 withObject:(id)arg2 { @synchronized(self) { NSSet* observer_copy = [observers copy]; for (id observer in observer_copy) { if([observer respondsToSelector: selector]) { [observer performSelector: selector withObject: arg1 withObject: arg2]; } } [observer_copy release]; } } -(void)addObserver:(id)observer { @synchronized(self) { [observers addObject: observer]; } } -(void)removeObserver:(id)observer { @synchronized(self) { [observers removeObject: observer]; } }

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Pushing a ABUnknownPersonViewController onto a navigation controller results in having no Navigation

- by dermdaly

Hi There, I'm working with the Address Book UI API on iPhone SDK 3.0. I want to present to the user the ability to create a new user, or add to an existing one, so I am using the ABUnknownPersonViewController. I have an existing navigation stack (with only 2 other views on it). Trouble is when I push the ABUnknownPersonViewController onto it, it shows up animated, etc. But there is no navigation bar, so no way to cancel. My code snippet is as follows newPersonViewController = [[ABUnknownPersonViewController alloc] init]; newPersonViewController.unknownPersonViewDelegate = self; newPersonViewController.displayedPerson = person; newPersonViewController.allowsAddingToAddressBook = YES; newPersonViewController.allowsActions = NO; [[self navigationController] pushViewController:newPersonViewController animated:YES]; Note: the current view controller does have a title, so that's not the issue. Any ideas what I am missing?

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iPhone Bluetooth application to connect to a Bluetooth printer

- by Vijayanand

Hi, Has anybody succeeded in developing a bluetooth application on the iPhone that prints to a Bluetooth printer? I have been investigating the feasibility of developing an iPhone application that could print to a Bluetooth-enabled printer. I've gone through the most of the postings in this thread and was confused by the mail exchanges. As per my analysis: Gamekit - can be used for bluetooth connectivity between iPhones and IPods ONLY Bonjour - can be used for wi-fi connectivity between iPhones/IPods and bonjour-enabled printer We can use an external accessory to connect to a third party Bluetooth-enabled printer provided the 3rd-party printer complies with the necessary regulations from Apple (registering for either “Made for iPod”/ “Works with iPhone”, and also customizing their printer with specific hardware/software, etc.) Could someone please share their experiences?

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Error Domain=SKErrorDomain Code=3 UserInfo=0x2a5a00 "Cannot connect to iTunes Store"

- by SKk

I am trying to implement InApp purchase in my application. I have implemented it as per Apple's programming guide and it(code) was working fine until I created new application, appid, provisioning profile and in-app products @ another developer account. Now, it gives me following error. Error Domain=SKErrorDomain Code=3 UserInfo=0x2a5a00 "Cannot connect to iTunes Store" Same code works fine if I use previous developer account's appid, pro-certificate and product ids. This is very strange issue, I double checked product id names and other things still facing same error. Any clue..?

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Using Objective-C blocks with old compiler

- by H2CO3

I'm using the opensource iPhone toolchain on Linux for developing for jailbroken iPhones. I'd like to take advantage of the new (4.0, 5.0) iOS SDK features, but I can't as my old build of GCC doesn't understand the ^ block syntax. I noticed that blocks are just of type id (struct objc_object *). I know this from two resources: first, class-dump reports them as id, second, Apple docs clarify that "blocks can be retained". My quiestion is, how can I take advantage of blocks using this knowledge? I thought of something like: // this is in SDK 4.x/5.x - (void) doSomethingWithBlock:((int)(^block)(int)); // and I modify it like: - (void) doSomethingWithBlock(id)block; the question is: HOW TO ACTUALLY CALL IT? How do I create blocks? I can, of course, create function pointers (IMPs in particular), but how to achieve the object-like memory layout?

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- by MW

- by Quentin

- by Drewsmits

- by M Katz

- by nsapplication

- by cursa

- by David Wolever

- by regulus6633

- by lu yuan

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- by ckrames1234

- by kovpas

- by morgman

- by Steve Melvin

- by Jones D R

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