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  • Asynchronously get user data in facebook tab?

    - by Kristoffer Nolgren
    Using the php sdk, I check if a user inside a tab likes the corresponding page. If i put the following code inside index.php and use that page as my page-tab-url, <?php require_once("facebook/facebook.php"); // Create our application instance // (replace this with your appId and secret). $facebook = new Facebook(array( 'appId' => '1399475990283166', 'secret' => 'mysercret', 'cookie' => true )); $signed_request = $facebook->getSignedRequest(); echo $signed_request['page']['liked']; ?> it outputs '1'. I would like to achieve this asynchronously instead, so I put the php in a separate file and try to access it using ajax instead $http.post('/facebook/likes.php'). success(function(data){ console.log(data); }).error(function(data){ console.log(data); } ); This sample is using angular, but what javascript library i'm using probably doesn't matter. When I access the info with javascript Facebook doesn't seem to get the info that I liked the page. Adding a print_r($facebook); on the page I'm retreiving the same values as if i'm not in a facebook-tab: ( [sharedSessionID:protected] => [appId:protected] => 1399475990283166 [appSecret:protected] => 679fb0ab947c2b98e818f9240bc793da [user:protected] => [signedRequest:protected] => [state:protected] => [accessToken:protected] => [fileUploadSupport:protected] => [trustForwarded:protected] => ) Can I access theese values asynchronosly somehow?

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  • How combine TabBar + Navigation with XCode

    - by mamcx
    I'm triying to combine a TabBar + Navigation app. I have 5 tab bars, 4 are listing of stuff and drill down to details views. I try to follow this tutorial: http://www.iphonedevforums.com/forum/iphone-sdk-development/124-view-controller-problem.html But always get a blank view. This is what I do, with a clean project: I start with a TabBar template app. I put 5 tab bar buttons. I create a controller like: @interface FirstViewController : UINavigationController { } I put the main window.xib on tree mode & change the selected first view to FirstViewController I select the TabBar Controller in Interface builder, go to TabBar Attributes & change the class to navigation controler. Select the fist view & put the nib name "SecondView" In response, I get a blank screen. I must add that I wanna navigate from the details views, no from the main windows. i.e in the main window tab bar 1 is the list of people. I select a person then wanna navigate to the detail window.

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  • ListView exception for Images + Text

    - by drozzy
    I am trying to create a simple Icon+Text ListView but it does not work. I am using 2.1 Android SDK. My main class is very small slightly modified from the tutorial: public class Stuffs extends ListActivity { static final String[] COUNTRIES = new String[] {"A", "B","C"}; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, R.id.title, COUNTRIES)); } } and my list_item.xml file is this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation = "horizontal"> <ImageView android:id = "@+id/icon" android:src="@drawable/icon" /> <TextView android:id = "@+id/title" android:padding="10dp" android:textSize="16sp" > </TextView> </LinearLayout> I have also created a "drawable" directory in my res directory and copied a "icon.png" into it. But any time I try to run this the application hangs up unexpected in my android emulator. Am I missing something?

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  • Slow loading of UITableView. How know why?

    - by mamcx
    I have a UITableView that show a long list of data. Use sections and follow the sugestion of http://stackoverflow.com/questions/695814/how-solve-slow-scrolling-in-uitableview . The flow is load a main UITableView & push a second selecting a row from there. However, with 3000 items take 11 seconds to show. I suspect first from the load of the records from sqlite (I preload the first 200). So I cut it to only 50. However, no matter if I preload only 1 or 500, the time is the same. The view is made from IB and all is opaque. I run out of ideas in how detect the problem. I run the Instruments tool but not know what to look. Also, when the user select a cell from the previous UITable, no visual feedback is show (ie: the cell not turn selected) for a while so he thinks he not select it and try several times. Is related to this problem. What to do? NOTE: The problem is only in the actual device: iPod Touch 2d generation Using fmdb as sqlite api Doing the caching in viewDidLoad Using NSDictionary for the caching Using a NSAutoreleasePool for the caching part. Only caching the row ID & mac 4 fields necesary to show the cell data UIView made with interface builder, SDK 2.2.1 Instruments say I use 2.5 MB in the device

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  • Debugging on an iPhone device

    - by Mike Rychev
    I have a developer license and I've generated .mobileprovision and .cer files. I've put the provision file on my device, double-clicked the .cer file and added it to the login keychain. But when I'm trying to build the app in XCode, I get the error: CodeSign error: code signing is required for product type 'Application' in SDK 'Device - iPhone OS 3.1.3' What am I doing wrong? Thanks in advance!

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  • How can I get the Android SDK working with Eclipse in Ubuntu 9.10 64-bit?

    - by vulcan99
    I would like to tinker with the Android software development kit, and I have found out that it only support 32-bit versions of the Java Platform and Eclipse. I installed the ia32 Sun Java runtime environment and the 32-bit version of Eclipse. I also used the update-alternatives program to make a java 32-bit preference. Both of these seem to run fine. I also installed the Eclipse android plugins, but my problem lies in the SDK downloaded from Google. When I go to Eclipse preferences and try to tell it about my Android SDK location, there are no SDK targets listed. Has anyone else gotten this running on Ubuntu 9.10 64-bit? Thanks.

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  • PDF rendering crashes app Core Graphics

    - by Felixyz
    EDIT: The memory leaks turned out to be unrelated to the crashes. Leaks are fixed but crashes remain, still mysterious. My (iPhone) app does lots of PDF loading and rendering, some of it threaded. Sometime, it seems always after I flush a page cash after getting a memory warning, the app crashes with a bad access when trying to draw a pdf page stored in an NSData object. Here is one example trace: #0 0x3016d564 in CGPDFResourcesGetResource () #1 0x3016d58a in CGPDFResourcesGetResource () #2 0x3016d94e in CGPDFResourcesGetExtGState () #3 0x3015fac4 in CGPDFContentStreamGetExtGState () #4 0x301629a8 in op_gs () #5 0x3016df12 in handle_xname () #6 0x3016dd9e in read_objects () #7 0x3016de6c in CGPDFScannerScan () #8 0x30161e34 in CGPDFDrawingContextDraw () #9 0x3016a9dc in CGContextDrawPDFPage () But sometimes I get this instead: Program received signal: “EXC_BAD_ACCESS”. (gdb) bt #0 0x335625fa in objc_msgSend () #1 0x32c04eba in CFDictionaryGetValue () #2 0x3016d500 in get_value () #3 0x3016d5d6 in CGPDFResourcesGetFont () #4 0x3015fbb4 in CGPDFContentStreamGetFont () #5 0x30163480 in op_Tf () #6 0x3016df12 in handle_xname () #7 0x3016dd9e in read_objects () #8 0x3016de6c in CGPDFScannerScan () #9 0x30161e34 in CGPDFDrawingContextDraw () #10 0x3016a9dc in CGContextDrawPDFPage () Is this an indication that I've mistakenly deallocated an object? It's hard for me to decode what's happening here. This is how I create and retain the various objects involved: // Some data was just loaded from the network and is pointed to by "data" self.pdfData = data; _dataProviderRef = CGDataProviderCreateWithData( NULL, [_pdfData bytes], [_pdfData length], NULL ); _documentRef = CGPDFDocumentCreateWithProvider(_dataProviderRef); _pageRef = CGPDFDocumentGetPage(_documentRef, 1); CGPDFPageRetain(_pageRef); _pdfFrame = CGPDFPageGetBoxRect(_pageRef, kCGPDFArtBox); So the NSData object is retained, and I explicitly retain the page reference. The data provider and the document are already retained by the create-functions. And here is my dealloc method: -(void)dealloc { if (_pageRef) CGPDFPageRelease(_pageRef); if (_documentRef) CGPDFDocumentRelease(_documentRef); if (_dataProviderRef) CGDataProviderRelease(_dataProviderRef); self.pdfData = nil; [super dealloc]; } Am I doing anything wrong? Even an assurance that I'm not, with explanation, would be a help.

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  • In an iPad SplitView, how do I add a Date Picker control to the Root View?

    - by Dr Dork
    I'm diving into iPhone OS development on the iPad and one of the things I'm playing with is the SplitView template. The template provides a window with a UISplitView view, containing the Root View (on the left of the window) and the Detail View (on the right of the window). The Root View is a subclass of a TableView. Rather than having the entire Root View consist of a TableView, I'd like it to contain a DatePicker view along with the TableView under it. When I go into IB and try and drop a DatePicker into the Root View, it won't let me. It will only let me add a DatePicker view to the Detail View. Why wont IB let me drop a DatePicker view into the Root View? How can I add a DatePicker to the RootView in addition to the TableView? I'm still learning this new platform, so I apologize if these questions are absurd in any way. Thanks so much in advance for your help, I'm going to continue researching these questions right now.

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  • Xcode: Unable to open project... cannot be opened because the project file cannot be parsed...

    - by Chris Butler
    Hi everyone. I have been working for a while to create an iPhone app. Today when my battery was low, I was working and constantly saving my source files then the power went out... Now when I plugged my computer back in and it is getting good power I try to open my project file and I get an error: "Unable to Open Project Project ... cannot be opened because the project file cannot be parsed." Is there a way that people know of that I can recover from this? I tried using an older project file and re inserting it and then compiling. It gives me a funky error which is probably because it isn't finding all the files it wants... I really don't want to rebuild my project from scratch if possible. Thanks in advance. EDIT Ok, I did a diff between this and a slightly older project file that worked and saw that there was some corruption in the file. After merging them (the good and newest parts) it is now working. Great points about the SVN. I have one, but there has been some funkiness trying to sync XCode with it. I'll definitely spend more time with it now... ;-) Thanks for everyone's comments and suggestions.

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  • In the Xcode SplitView template for an iPad app, how do I add a Date Picker control to the Root View

    - by Dr Dork
    I'm diving into iPhone OS development on the iPad and one of the things I'm playing with is the SplitView template. The template provides a window with a UISplitView view, containing the Root View (on the left of the window) and the Detail View (on the right of the window). The Root View is a subclass of a TableView. Rather than having the entire Root View consist of a TableView, I'd like it to contain a DatePicker view along with the TableView under it. When I go into IB and try and drop a DatePicker into the Root View, it won't let me. It will only let me add a DatePicker view to the Detail View. Why wont IB let me drop a DatePicker view into the Root View? How can I add a DatePicker to the RootView in addition to the TableView? I'm still learning this new platform, so I apologize if these questions are absurd in any way. Thanks so much in advance for your help, I'm going to continue researching these questions right now.

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  • Convert NSMutableArray to string and back

    - by Friendlydeveloper
    Hello, in my current project I'm facing the following problem: The app needs to exchange data with my server, which are stored inside a NSMutableArray on the iPhone. The array holds NSString, NSData and CGPoint values. Now, I thought the easiest way to achieve this, was to convert the array into a properly formatted string, send it to my server and store it inside some mySQL database. At this point I'd like to request my data from my server, receive the string, which represents contents of my array and then actually convert it back into a NSMutablArray. So far, I tried something like this: NSString *myArrayString = [myArray description]; Now I send this string to my server and store it inside my mySQL database. That part works really well. However, when I receive the string from my server, I have trouble converting it back into a NSMutableArray. Is there a method, which can easily convert array description back into an array? Unfortunately I couldn't find anything on that so far. Maybe my way of "serializing" the array is wrong right from the start and there is a smarter way to do this. Any help appreciated. Thanks in advance.

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  • How does [self.tableView reloadData] know what data to reload?

    - by Scott Pendleton
    It bugs me to death that my viewcontroller, which happens to be a tableViewController, knows without being told that its property that is an NSArray or an NSDictionary holds the data that is to be loaded into the table for display. Seems like I should explicitly say something like: [self.tableView useData:self.MyArray]; Because, THAT'S WHAT I WANT TO DO! I want to have more than one array inside my tableViewController, and switch between one and the other programmatically. Please do not give me an answer like: "Never mind what you want to do, just set up two different tableViewControllers." No. I want to do it my way. I notice that when a tableViewController makes use of a searchViewController, you can do this: if (tableView == self.searchDisplayController.searchResultsTableView) { YES! I have even been able to do this: self.tableView = self.searchDisplayController.searchResultsTableView; [self.tableView reloadData]; But nowhere can I find how to set self.tableView back to the main datasource! I'm so tired of sifting, sifting through code for incomplete nuggets of enlightenment. Allow me to understate that Apple's documentation is grossly inadequate. It's astounding that so many slick iPhone programs came to be created. People said that once I went Mac, I'd never go back to Windows. Well, I'm anything but a convert.

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  • Decoding ima4 audio format

    - by MrDatabase
    To reduce the download size of an iPhone application I'm compressing some audio files. Specifically I'm using afconvert on the command line to change .wav format to .caf format w/ ima4 compression. I've read this (wooji-juice.com) awesome post about this exact topic. I'm having trouble w/ the "decoding ima4 packets" step. I've looked at their sample code and I'm stuck. Please help w/ some pseudo code or sample code that can guide me in the right direction. Thanks! Additional info: Here is what I've completed and where I'm having trouble... I can play .wav files in both the simulator and on the phone. I can compress .wav files to .caf w/ ima4 compression using afconvert on the command line. I'm using the SoundEngine that came w/ CrashLanding (I fixed one memory leak). I modified the SoundEngine code to look for the mFormatID 'ima4'. I don't understand the blog post linked above starting w/ "Calculating the size of the unpacked data". Why do I need to do this? Also, what does the term "packet" refer to? I'm very new to any sort of audio programming.

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  • jerky animation using Core Animation

    - by Paul from Boston
    In my iPhone app, I am trying to get some red and white stripes that are scrolling across the screen to animate smoothly when the speed of the stripes gets high. In my app the user starts the animation and changes the scrolling speed by a finger swipe and changes the width of the stripes by a two finger pinch. Animation is stopped in response to a double tap. If the speed gets high or the stripes get narrow the animation is no longer smooth to the eye. The edges of the stripes seem to jump around. The animation is simple. I draw the stripes in a layer that's a bit larger than the screen. I then set up an animation that moves the layer position by exactly the distance from one red stripe to the next. The duration is set by the speed of the finger swipe and the repeat count is 1. When the animation stops the delegate checks a flag to see if the user wants to stop the scrolling. If not, the animation is restarted again for one cycle. Are there better ways of doing this so that the animation is smooth at high speeds or with narrow stripes? Thanks--

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  • UIBarButtonItem with custom image and no border

    - by mongeta
    Hello, I want to create a UIBarButtonItem with a custom image, but I don't want the border that iPhone adds, as my Image has a special border. It's the same as the back button but a forward button. This App is for an inHouse project, so I don't care if Apple reject or approves it or likes it :-) If I use the initWithCustomView:v property of the UIBarButtonItem, I can do it: UIImage *image = [UIImage imageNamed:@"right.png"]; UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; [button setBackgroundImage: [image stretchableImageWithLeftCapWidth:7.0 topCapHeight:0.0] forState:UIControlStateNormal]; [button setBackgroundImage: [[UIImage imageNamed: @"right_clicked.png"] stretchableImageWithLeftCapWidth:7.0 topCapHeight:0.0] forState:UIControlStateHighlighted]; button.frame= CGRectMake(0.0, 0.0, image.size.width, image.size.height); [button addTarget:self action:@selector(AcceptData) forControlEvents:UIControlEventTouchUpInside]; UIView *v=[[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, image.size.width, image.size.height) ]; [v addSubview:button]; UIBarButtonItem *forward = [[UIBarButtonItem alloc] initWithCustomView:v]; self.navigationItem.rightBarButtonItem= forward; [v release]; [image release]; This works, but if I have to repeat this process in 10 views, this is not DRY. I suppose I have to subclass, but what ? NSView ? UIBarButtonItem ? thanks, regards,

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  • OAuth with Google Reader API using Objective C

    - by Dylan
    I'm using the gdata OAuth controllers to get an OAuth token and then signing my requests as instructed. [auth authorizeRequest:myNSURLMutableRequest] It works great for GET requests but POSTs are failing with 401 errors. I knew I wouldn't be able to remain blissfully ignorant of the OAuth magic. The Google Reader API requires parameters in the POST body. OAuth requires those parameters to be encoded in the signature like they were on the query string. It doesn't appear the gdata library does this. I tried hacking it in the same way it handles the query string but no luck. This is so difficult to debug as all I get is a 401 from the Google black box and I'm left to guess. I really want to use OAuth so I don't have to collect login credentials from my users but I'm about to scrap it and go with the simpler cookie based authentication that is more mature. It's possible I'm completely wrong about the reason it's failing. This is my best guess. Any suggestions for getting gdata to work or maybe an alternative iphone friendly OAuth library?

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  • How to require fullscreen mode in a jQTouch application?

    - by Christopher Young
    I'm using jQTouch to develop a version of a website optimized for safari on the iphone. The jQTouch demo helpfully shows how to show an "install this" message for users not using full screen mode and hide it for those who are. When in fullscreen mode, the body should have the class "fullscreen." So you can hide the "install this" message for people who have already added your app to their home page by adding this css rule to your stylesheet: body.fullscreen #home .info { display: none; } What I'd like to do is require users to use the app in fullscreen mode only. When viewed from the regular browser, they should only see a message asking them to install the app. That message should of course be hidden otherwise. This ought to be really, really easy, so I must just be missing something obvious. I thought one way to do this would be to simply test for the class "fullscreen" on the body: if it's not there, use goTo to get to another div, or hide the other divs, or something like that. Strangely, however, this doesn't work. As a test, I've still got the original "info" message, as in the jQTouch demo, and it doesn't show up when I launch in fullscreen mode. So the body must have the fullscreen class. And yet I can't find any other trace of it: when I put this alert to test things after the document has loaded, I get nothing when launching in fullscreen mode: alert($("body").attr("class")); I also thought I might test for fullscreen mode by checking for the value of the fullScreen boolean. But this doesn't seem to work either. What am I missing? What is the best way to do this?

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  • UIImagePickerController dismissModalViewController

    - by Deepak Sharma
    I am trying to invoke UIImagePickerController to select a movie on iPhone 3GS and when the movie is selected, i just dismiss it and present MyViewController modally with a configured delay of 1.0 seconds. What I notice is 10% of the times, presentModalViewController on MyViewController does nothing whereas it works 90% of the times. I want to understand why is this behavior and what is the remedy. Here is the sample code: (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSURL *videoURL = nil; NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType]; if ([mediaType isEqualToString:@"public.movie"]) { videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; } picker.delegate = nil; [[picker parentViewController] dismissModalViewControllerAnimated:YES]; [self performSelector:@selector(launchMyViewController:) withObject:nil afterDelay:1.0]; } -(void) launchMyViewController:(id) obj { MyViewController *myCtrl = [[MyViewController alloc] initWithNibName:@"MyViewController" bundle:[NSBundle mainBundle] controller:self]; [self presentModalViewController:myCtrl animated:YES]; [myCtrl release]; NSLog(NSStringFromClass([self.modalViewController class])); [path release]; } I have put NSLog statement to print the self.modalViewController class name and what I notice is that 10% of the times when myCtrl is not fired modally, the self.modalViewController.class is UIImagePickerController. Otherwise, the self.modalViewController.class is MyViewController. I want to know why is the behavior so unpredictable and what is the workaround or other way to achieve the same thing I intend.

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  • Random MKAnnotationView is tapped when there are overlapping annotations

    - by Alexandre Gellibert
    I cannot believe this bug/problem doesn't have any solution! In my iphone application, I'm using MapKit with MKMapView and custom MKAnnotationView. The problem is when annotations overlap (in my app, annotations are photos and those photos may overlap) and when you tap on the annotation that appears on front, other annotation (on back) receives the event (seems to be random). I didn't find any way to send the event to the front annotation. Z ordering and Order of overlapping annotations questions on stackoverflow did not help me that much. Please any idea is welcome (even ugly ones)! Here's some of my code (nothing fancy, very common): CustomAnnotation.h @interface CustomAnnotation : NSObject <MKAnnotation> { @private CustomAnnotationView* view; } @property (nonatomic, retain) CustomAnnotationView* view; @end CustomAnnotation.m @implementation CustomAnnotation @synthetize view; CustomAnnotationView.h @interface CustomAnnotationView : MKAnnotationView { } @end CustomAnnotationView.m @implementation CustomAnnotationView - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ // Do something related to the annotation tapped } @end Main class ... // Annotations are added and some of them overlaps with others. - (void)addAnnotation:(CustomAnnotation*)annotation { [map addAnnotation:annotation]; } ... - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation { NSString* identifier = getIdentifierFromAnnotation(annotation); CustomAnnotationView* view; if(!(view = (CustomAnnotationView*)[map dequeueReusableAnnotationViewWithIdentifier:identifier])) { view = [[CustomAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier: identifier]; [(CustomAnnotation*)annotation setView:view]; [view release]; } return view; }

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  • UIAlertView -show causing a memory leak

    - by Erik
    I'm relatively new to iPhone Development, so this may be my fault, but it goes against what I've seen. :) I think that I'm creating a UIAlertView that lives just in this vaccuum of the 'if' statement. NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; if(!data) { // Add an alert UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Unable to contact server" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil]; NSLog(@"retain count before show: %i", alert.retainCount); [alert show]; NSLog(@"retain count before release: %i", alert.retainCount); [alert release]; NSLog(@"retain count after release: %i", alert.retainCount); return nil; } However, the console logs baffle me. retain count before show: 1 retain count before release: 6 retain count after release: 5 I've tried also adding: alert = nil; after the release. That makes the retain count 0, but I still show a leak. And if it helps, the leak's Responsible Frame is UIKeyboardInputManagerClassForInputMode. I'm also using OS 4 Beta 3. So anyone have any ideas how a local UIAlertView's retain count would increment itself by 5 when calling -show? Thanks for your help!

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  • NSURLConnection sendSynchronousRequest: fails when using POST

    - by Combat
    I'm using a custom NSURLCache to intercept calls for certain web pages in order to modify them dynamically. Inside cachedResponseForRequest: I modify the request, then send it out using sendSynchronousRequest. This works very well until you attempt to submit a form. If there is post data it fails. If i remove the HTTPBody and set the request to GET, it succeeds. But i need it to work with POST. If i send the request asynchronously it also works which is why i can't figure out why the synchronous request fails. Here's my stack trace: Date/Time: 2010-01-17 12:37:55.416 -0800 OS Version: iPhone OS 3.1.2 (7D11) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000001c Crashed Thread: 2 Thread 2 Crashed: 0 CFNetwork 0x0000b4e4 HTTPMessage::copyHeaderFieldValue(__CFString const*) + 18 1 CFNetwork 0x0000b4c8 CFHTTPMessageCopyHeaderFieldValue + 16 2 CFNetwork 0x0000e022 HTTPProtocol::createStream() + 328 3 CFNetwork 0x0000de8a HTTPProtocol::createAndOpenStream() + 458 4 CFNetwork 0x0000cba2 HTTPProtocol::startLoad() + 278 5 CFNetwork 0x0000c8da URLConnectionLoader::loaderScheduleOriginLoad(_CFURLRequest const*) + 216 6 CFNetwork 0x0000c77c URLConnectionLoader::loaderScheduleLoad(_CFURLRequest const*) + 280 7 CFNetwork 0x0000c5e6 URLConnectionLoader::LoaderConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo, long) + 134 8 CFNetwork 0x0000c53a URLConnectionLoader::processEvents() + 60 9 CFNetwork 0x0000a892 URLConnection::multiplexerClientPerform(RunLoopMultiplexer) + 30 10 CFNetwork 0x0000a812 MultiplexerSource::perform() + 86 11 CFNetwork 0x0000a7b2 MultiplexerSource::_perform(void*) + 2 12 CoreFoundation 0x000573a0 CFRunLoopRunSpecific + 1908 13 CoreFoundation 0x00056c18 CFRunLoopRunInMode + 44 14 Foundation 0x0005a998 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 172 15 Foundation 0x00053ac6 -[NSThread main] + 42 16 Foundation 0x00001d0e __NSThread_main_ + 852 17 libSystem.B.dylib 0x0002b7b0 _pthread_body + 20 As you can see, copyHeaderFieldValue is causing the crash. What I don't understand is why.

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  • Objective C - displaying data in NSTextView

    - by Leo
    Hi, I'm having difficulties displaying data in a TextView in iPhone programming. I'm analyzing incoming audio data (from the microphone). In order to do that, I create an object "analyzer" from my SignalAnalyzer class which performs analysis of the incoming data. What I would like to do is to display each new incoming data in a TextView in realtime. So when I push a button, I create the object "analyzer" whiwh analyze the incoming data. Each time there is new data, I need to display it on the screen in a TextView. My problem is that I'm getting an error because (I think) I'm trying to send a message to the parent class (the one taking care of displaying stuff in my TextView : it has a TexView instance variable linked in Interface Builder). What should I do in order to tell my parent class what it needs to display ? Or how sohould I design my classes to display automaticlally something ? Thank you for your help. PS : Here is my error : 2010-04-19 14:59:39.360 MyApp[1421:5003] void WebThreadLockFromAnyThread(), 0x14a890: Obtaining the web lock from a thread other than the main thread or the web thread. UIKit should not be called from a secondary thread. 2010-04-19 14:59:39.369 MyApp[1421:5003] bool _WebTryThreadLock(bool), 0x14a890: Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now... Program received signal: “EXC_BAD_ACCESS”.

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  • Encoding issue: Cocoa Error 261?

    - by Attacus
    So I'm fetching a JSON string from a php script in my iPhone app using: NSURL *baseURL = [NSURL URLWithString:@"test.php"]; NSError *encodeError = [[NSError alloc] init]; NSString *jsonString = [NSString stringWithContentsOfURL:baseURL encoding:NSUTF8StringEncoding error:&encodeError]; NSLog(@"Error: %@", [encodeError localizedDescription]); NSLog(@"STRING: %@", jsonString); The JSON string validates when I test the output. Now I'm having an encoding issue. When I fetch a single echo'd line such as: { "testKey":"é" } (I'm aware I could\should be using NSUrlConnection for asynchronous fetching of data, but at this point in the app development, I don't really need it.) The JSON parser works fine and I am able to create a valid JSON object. However, when I fetch my 2MB JSON string, I get presented with: Error: Operation could not be completed. (Cocoa error 261.) and a Null string. My PHP file is UTF8 itself and I am not using utf8_encode() because that seems to double encode the data since I'm already pulling the data as NSUTF8StringEncoding. Either way, in my single-echo test, it's the approach that allowed me to successfully log \ASDAS style UTF8 escapes when building the JSON object. What could be causing the error in the case of the larger string? Also, I'm not sure if it makes a difference, but I'm using the php function addslashes() on my parsed php data to account for quotes and such when building the JSON string.

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  • UIImageJPEGRepresentation - memory release issue

    - by FredM
    On a iPhone app, I need to send a jpg by mail with a maximum size of 300Ko (I don't no the maximum size mail.app can have, but it's another problem). To do that, I'm trying to decrease quality until obtain an image under 300Ko. In order to obtain the good value of the quality (compressionLevel) who give me a jpg under 300Ko, I have made the following loop. It's working, but each time time the loop is executed, the memory increase of the size of the original size of my jpg (700Ko) despite the "[tmpImage release];". float compressionLevel = 1.0f; int size = 300001; while (size 300000) { UIImage *tmpImage =[[UIImage alloc] initWithContentsOfFile:[self fullDocumentsPathForTheFile:@"countOpix_imageToAnalyse.jpg"]]; size = [UIImageJPEGRepresentation(tmpImage, compressionLevel) length]; [tmpImage release]; //In the following line, the 0.001f decrement is choose just in order test the increase of the memory //compressionLevel = compressionLevel - 0.001f; NSLog(@"Compression: %f",compressionLevel); } Any ideas about how can i get it off, or why it happens? thanks

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