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• UIWebView is ignoring cookies?!

  - by A. Miladinovic

  Hello everybody, I am creating an app for the iPhone that fetches a specific page from a website, but to be able to view this site you need to log in with a username and a password. I've created this code: NSString *urlAddress = @"http://www.wdg-hamburg.de"; NSURL *url = [NSURL URLWithString:urlAddress]; NSString *post = @"name=loginname&pass=pass&form_id=user_login&op=Anmelden"; NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding]; NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod: @"POST"]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:postData]; [vPlan loadRequest:request]; But I am not logged in at the UIWebView! I am logging NSHTTPCookieStorage to the console and it shows me the necessary cookie, but I dont get logged in. Does anybody knows how I can fix that? Kind regards, A. Miladinovic

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• Deserializing a complex JSON result (array of dictionaries) with TouchJSON

  - by jpm

  I did a few tests with TouchJSON last night and it worked pretty well in general for simple cases. I'm using the following code to read some JSON content from a file, and deserialize it: NSString *jsonString = [[NSString alloc] initWithContentsOfFile:@"data.json"]; NSData *jsonData = [jsonString dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; NSDictionary *items = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; NSLog(@"total items: %d", [items count]); NSLog(@"error: %@", [error localizedDescription]); That works fine if I have a very simple JSON object in the file (i.e. a dictionary): {"id": "54354", "name": "boohoo"} This way I was able to get access to the array of values, as I wanted to get the item based on its index within the list: NSArray *items_list = [items allValues]; NSString *name = [items_list objectAtIndex:1]; (I understand that I could have fetched the name with the dictionary API) Now I would like to deserialize a semi-complex JSON string, which represents an array of dictionaries. An example of such a JSON string is below: [{"id": "123456", "name": "touchjson"}, {"id": "3456", "name": "bleh"}] When I try to run the same code above against this new content in the data.json file, I don't get any results back. My NSLog() call says "total items: 0", and no error is coming back in the NSError object. Any clues on what is going on? I'm completely lost on what to do, as there isn't much documentation available for TouchJSON, and much less usage examples.

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• Update iPhone UIProgressView during NSURLConnection download.

  - by Scott Pendleton

  I am using this code: NSURLConnection *oConnection=[[NSURLConnection alloc] initWithRequest:oRequest delegate:self]; to download a file, and I want to update a progress bar on a subview that I load. For that, I use this code: - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [oReceivedData appendData:data]; float n = oReceivedData.length; float d = self.iTotalSize; NSNumber *oNum = [NSNumber numberWithFloat:n/d]; self.oDPVC.oProgress.progress = [oNum floatValue]; } The subview is oDPVC, and the progress bar on it is oProgress. Setting the progress property does not update the control. From what I have read on the Web, lots of people want to do this and yet there is not a complete, reliable sample. Also, there is much contradictory advice. Some people think that you don't need a separate thread. Some say you need a background thread for the progress update. Some say no, do other things in the background and update the progress on the main thread. I've tried all the advice, and none of it works for me. One more thing, maybe this is a clue. I use this code to load the subview during applicationDidFinishLaunching: self.oDPVC = [[DownloadProgressViewController alloc] initWithNibName:@"DownloadProgressViewController" bundle:nil]; [window addSubview:self.oDPVC.view]; In the XIB file (which I have examined in both Interface Builder and in a text editor) the progress bar is 280 pixels wide. But when the view opens, it has somehow been adjusted to maybe half that width. Also, the background image of the view is default.png. Instead of appearing right on top of the default image, it is shoved up about 10 pixels, leaving a white bar across the bottom of the screen. Maybe that's a separate issue, maybe not.

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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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• IOS: How to uplaod a file to specific google drive folder using google drive sdk library

  - by loganathan

  I integrated google drive sdk with my ios app. But i do not know how to upload a file to google drive specific folder. Here the code am using to upload the file. But this one uploading the file to my google drive root folder. Any one share a code to upload a file to google drive specific folder?. My Code: -(void)uploadFileToGoogleDrive:(NSString*)fileName { GTLDriveFile *driveFile = [[[GTLDriveFile alloc]init] autorelease]; driveFile.mimeType = @"application/pdf"; driveFile.originalFilename = @"test.doc"; driveFile.title = @"test.doc"; NSString *filePath = [LocalFilesDetails getUserDocumentFullPathForFileName:fileName isSignedDocument:YES]; GTLUploadParameters *uploadParameters = [GTLUploadParameters uploadParametersWithData:[NSData dataWithContentsOfFile:filePath] MIMEType:@"application/pdf"]; GTLQueryDrive *query = [GTLQueryDrive queryForFilesInsertWithObject:driveFile uploadParameters:uploadParameters]; [self.driveService executeQuery:query completionHandler:^(GTLServiceTicket *ticket, GTLDriveFile *updatedFile, NSError *error) { if (error == nil) { NSLog(@"\n\nfile uploaded into google drive\\<my_folder> foler"); } else { NSLog(@"\n\nfile uplod failed google drive\\<my_folder> foler"); } }]; }

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• How to download a wav file from the web to a location on iPhone using NSFileHandle and NSURLConnecti

  - by Jinru

  Hi all, I want to download a wav file from a web service, cache it on the iphone and playback it using AVAudioPlayer. Using NSFileHandle and NSURLConnection seems a viable solution when dealing with relatively large files. However, after running the app in the simulator I don't see any saved file under the defined directory (NSHomeDirectory/tmp). Below is my basic code. Where am I doing wrong? Any thoughts are appreciated! #define TEMP_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"tmp"] - (void)downloadToFile:(NSString*)name { NSString* filePath = [[NSString stringWithFormat:@"%@/%@.wav", TEMP_FOLDER, name] retain]; self.localFilePath = filePath; // set up FileHandle self.audioFile = [[NSFileHandle fileHandleForWritingAtPath:localFilePath] retain]; [filePath release]; // Open the connection NSURLRequest* request = [NSURLRequest requestWithURL:self.webURL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; NSURLConnection* connection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; } #pragma mark - #pragma mark NSURLConnection methods - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData*)data { [self.audioFile writeData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError*)error { NSLog(@"Connection failed to downloading sound: %@", [error description]); } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { [connection release]; [audioFile closeFile]; }

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• Apple Push Notification-Unable to callback didRegisterForRemoteNotificationsWithDeviceToken

  - by Shailesh Kanzariya

  I have been simply trying to get deviceToken from my iPhone application using Apple Push Notification Service. I don't have any implementation on server side for the time being. I have created APP Id, got SSL certificate, Provision Profile with APN and calling - (void)applicationDidFinishLaunching:(UIApplication *)application { //view init and add sub view to window [[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound]; } method. When I execute the application it pop ups action box to allow Push Notification (means my request for APN registration is working) but my callback is not executed. Neither didRegisterForRemoteNotificationsWithDeviceToken nor didFailToRegisterForRemoteNotificationsWithError is called? can anybody help me to resolve the issue? Following are my callbacs for reference. - (void)application:(UIApplication *)app didFailToRegisterForRemoteNotificationsWithError:(NSError *)err { UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"APNClient" message:@"Entered into Error Method" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [myAlert show]; [myAlert release]; NSLog(@"Error in registration. Error: %@", err); } - (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)devToken { UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:@"APNClient" message:@"Got the deviceToken..!" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [myAlert show]; [myAlert release]; }

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• Creating Drill-Down Detail UITableView from JSON NSDictionary

  - by Michael Robinson

  I'm have a load of trouble finding out how to do this, I want to show this in a UITableDetailView (Drill-Down style) with each item in a different cell. All of the things I've read all show how to load a single image on the detail instead of showing as a UITableView. Does the dictionary have to have "children" in order to load correctly? Here is the code for the first view creating *dict from the JSON rowsArray. I guess what I'm looking for is what to put in the FollowingDetailViewController.m to see the rest of *dict contents, so when selecting a row, it loads the rest of the *dict. I have rowsArray coming back as follows: '{ loginName = Johnson; memberid = 39; name = Kris; age = ;}, etc,etc... Thanks, // SET UP TABLE & CELLS - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; } NSDictionary *dict = [rowsArray objectAtIndex: indexPath.row]; cell.textLabel.text = [dict objectForKey:@"name"]; cell.detailTextLabel.text = [dict objectForKey:@"loginName"]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; - (void)viewDidLoad { [super viewDidLoad]; //GET JSON FROM WEBSERVICES: NSURL *url = [NSURL URLWithString:@"http://10.0.1.8/~imac/iphone/jsontest.php"]; NSString *jsonreturn = [[NSString alloc] initWithContentsOfURL:url]; NSData *jsonData = [jsonreturn dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; NSDictionary * dict = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; if (dict) { rowsArray = [dict objectForKey:@"member"]; [rowsArray retain]; } [jsonreturn release]; } //GO TO DETAIL VIEW: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { FollowingDetailViewController *aFollowDetail = [[FollowingDetailViewController alloc] initWithNibName:@"FollowingDetailView" bundle:nil]; [self.navigationController pushViewController:aFollowDetail animated:YES]; }

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• strange multiple files download - NSURLConnection

  - by Georg

  hi all, I encounter a problem by following your comment. I would like to download different file at same time with different delegate: .h: NSMutableData *fileData; .m: NSString *imgfile = [NSString stringWithFormat:@"http://xxxx/01.jpg"]; NSURL *fileURL1 = [NSURL URLWithString:imgfile]; NSString *audiofile = [NSString stringWithFormat:@"http://xxxx/01.mp3"]; NSURL *fileURL2 = [NSURL URLWithString:audiofile]; NSURLRequest *request1 = [NSURLRequest requestWithURL:fileURL1 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0 ]; NSURLRequest *request2 = [NSURLRequest requestWithURL:fileURL2 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0 ]; NSArray *connections = [[NSArray alloc] initWithObjects: [[NSURLConnection alloc] initWithRequest:request1 delegate:self ], [[NSURLConnection alloc] initWithRequest:request2 delegate:self ], nil]; - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { fileData = [[NSMutableData alloc] init]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [fileData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@"Unable to fetch data"); } ok, the download process works, but, the file size of jpg and mp3 are incorrect, the only correct thing is the total file size (jpg+mp3), please could you have a look on the code, what is missing? Another question is, I put the file in a NSMutableArray, my question is, how to check which index of array is the correct file type (jpg and mp3)? because I need to save them to the device folder.

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• AVFoundation: Video to OpenGL texture working - How to play and sync audio?

  - by j00hi

  I've managed to load a video-track of a movie frame by frame into a OpenGL texture with AVFoundation. I followed the steps described in the answer here: iOS4: how do I use video file as an OpenGL texture? and took some code from the GLVideoFrame sample from WWDC2010 which can be downloaded here: http://bit.ly/cEf0rM How do I play the audio-track of the movie synchronously to the video. I think it would not be a good idea to play it in a separate player, but to use the audio-track of the same AVAsset. AVAssetTrack* audioTrack = [[asset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0]; I retrieve a videoframe and it's timestamp in the CADisplayLink-callback via CMSampleBufferRef sampleBuffer = [self.readerOutput copyNextSampleBuffer]; CMTime timestamp = CMSampleBufferGetPresentationTimeStamp( sampleBuffer ); where readerOutput is of type AVAssetReaderTrackOutput* How to get the corresponding audio-samples? And how to play them? Edit: I've looked around a bit and I think, best would be to use AudioQueue from the AudioToolbox.framework using the approach described here: AVAssetReader and Audio Queue streaming problem There is also an audio-player in the AVFoundation: AVAudioPlayer. But I don't know exactly how I should pass data to it's initWithData-initializer which expects NSData. Furthermore I don't think it's the best choice for my case because a new AVAudioPlayer-instance would have to be created for every new chunk of audio samples, as I understand it. Any other suggestions? What's the best way to play the raw audio samples which i get from the AVAssetReaderTrackOutput?

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• UIImagePickerController Save to Disk then Load to UIImageView

  - by Harley Gagrow

  Hi, I have a UIImagePickerController that saves the image to disk as a png. When I try to load the PNG and set a UIImageView's imageView.image to the file, it is not displaying. Here is my code: (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; NSData *imageData = UIImagePNGRepresentation(image); // Create a file name for the image NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setTimeStyle:NSDateFormatterShortStyle]; [dateFormatter setDateStyle:NSDateFormatterShortStyle]; NSString *imageName = [NSString stringWithFormat:@"photo-%@.png", [dateFormatter stringFromDate:[NSDate date]]]; [dateFormatter release]; // Find the path to the documents directory NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; // Now we get the full path to the file NSString *fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imageName]; // Write out the data. [imageData writeToFile:fullPathToFile atomically:NO]; // Set the managedObject's imageLocation attribute and save the managed object context [self.managedObject setValue:fullPathToFile forKey:@"imageLocation"]; NSError *error = nil; [[self.managedObject managedObjectContext] save:&error]; [self dismissModalViewControllerAnimated:YES]; } Then here is how I try to load it: self.imageView.backgroundColor = [UIColor lightGrayColor]; self.imageView.frame = CGRectMake(10, 10, 72, 72); if ([self.managedObject valueForKey:@"imageLocation"] != nil) { NSLog(@"Trying to load the imageView with: %@", [self.managedObject valueForKey:@"imageLocation"]); UIImage *image = [[UIImage alloc] initWithContentsOfFile:[self.managedObject valueForKey:@"imageLocation"]]; self.imageView.image = image; } else { self.imageView.image = [UIImage imageNamed:@"no_picture_taken.png"]; } I get the message that it's trying to load the imageView in the debugger, but the image is never displayed in the imageView. Can anyone tell me what I've got wrong here? Thanks a bunch.

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• How to get correct Set-Cookie headers for NSHTTPURLResponse?

  - by overboming

  I want to use the following code to login to a website which returns its cookie information in the following manner: Set-Cookie: 19231234 Set-Cookie: u2am1342340 Set-Cookie: owwjera I'm using the following code to log in to the site, but the print statement at the end doesn't output anything about "set-cookie". On Snow leopard, the library seems to automatically pick up the cookie for this site and later connections sent out is set with correct "cookie" headers. But on leopard, it doesn't work that way, so is that a trigger for this "remember the cookie for certain root url" behavior? NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:uurl]]; [request setHTTPMethod:@"POST"]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setValue:@"keep-live" forHTTPHeaderField:@"Connection"]; [request setValue:@"300" forHTTPHeaderField:@"Keep-Alive"]; [request setHTTPShouldHandleCookies:YES]; [request setHTTPBody:postData]; [request setTimeoutInterval:10.0]; NSData *urlData; NSHTTPURLResponse *response; NSError *error; urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; NSLog(@"response dictionary %@",[response allHeaderFields]);

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• Getting Attributes of Keychain Items

  - by rgov

  I'm trying to get the attributes of a keychain item. This code should look up all the available attributes, then print off their tags and contents. According to the docs I should be seeing tags like 'cdat', but instead they just look like an index (i.e., the first tag is 0, next is 1). This makes it pretty useless since I can't tell which attribute is the one I'm looking for. SecItemClass itemClass; SecKeychainItemCopyAttributesAndData(itemRef, NULL, &itemClass, NULL, NULL, NULL); SecKeychainRef keychainRef; SecKeychainItemCopyKeychain(itemRef, &keychainRef); SecKeychainAttributeInfo *attrInfo; SecKeychainAttributeInfoForItemID(keychainRef, itemClass, &attrInfo); SecKeychainAttributeList *attributes; SecKeychainItemCopyAttributesAndData(itemRef, attrInfo, NULL, &attributes, 0, NULL); for (int i = 0; i < attributes->count; i ++) { SecKeychainAttribute attr = attributes->attr[i]; NSLog(@"%08x %@", attr.tag, [NSData dataWithBytes:attr.data length:attr.length]); } SecKeychainFreeAttributeInfo(attrInfo); SecKeychainItemFreeAttributesAndData(attributes, NULL); CFRelease(itemRef); CFRelease(keychainRef);

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• MFMailComposeController crashing non-deterministically

  - by sss

  Hello, I've been struggling with this issue for a few days. I am trying to use the MFMailComposeController to send emails. What's happening is that the program crashes (long stack-trace below) upon clicking the SEND button. However, this is non-deterministic - sometimes it works immediately, sometimes after a long delay, and most often, it crashes. Here's my code for sending: -(void)mailWithAttachment:(NSString *) fileName type:(NSString*) attachmentType data:(NSData *) attachmentData { MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init]; mc.mailComposeDelegate = self; if ([MFMailComposeViewController canSendMail]) { [mc setSubject:@"my subject"]; [mc setMessageBody:@"my body" isHTML:YES]; [mc addAttachmentData:attachmentData mimeType:attachmentType fileName:fileName]; [self presentModalViewController:mc animated:YES]; } [mc release]; } didFinish result looks like you'd imagine: -(void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error { [self dismissModalViewControllerAnimated:YES]; //...some other actions here for other UI logic, but problem persists if removed } And the definition of the class: @interface ShareViewController : UIViewController { //... } Here's the stack trace: #0 0x33568534 in gdb_objc_debuggerModeFailure #1 0x3356634e in _rwlock_write_nodebug #2 0x33560940 in map_images #3 0x2fe0413e in __dyld__ZN4dyldL18notifyBatchPartialE17dyld_image_statesbPFPKcS0_jPK15dyld_image_infoE #4 0x2fe042d4 in __dyld__ZN4dyldL11notifyBatchE17dyld_image_states #5 0x2fe0aee0 in __dyld__ZN11ImageLoader4linkERKNS_11LinkContextEbbRKNS_10RPathChainE #6 0x2fe062d6 in __dyld__ZN4dyld4linkEP11ImageLoaderbRKNS0_10RPathChainE #7 0x2fe08188 in __dyld_dlopen #8 0x30c18fd0 in dlopen #9 0x0000390c in <function called from gdb> #10 0x3356628e in getMethodNoSuper_nolock #11 0x335662b8 in _class_getMethodNoSuper_nolock #12 0x3356518a in lookUpMethod #13 0x33562914 in _class_lookupMethodAndLoadCache #14 0x3356264a in objc_msgSend_uncached #15 0x33562a2a in _class_initialize #16 0x33567dfe in prepareForMethodLookup #17 0x33565168 in lookUpMethod #18 0x33562914 in _class_lookupMethodAndLoadCache #19 0x3356264a in objc_msgSend_uncached #20 0x32b2c288 in +[NSTimeZone(NSTimeZone) defaultTimeZone] #21 0x32b2c246 in -[NSCalendarDate initWithTimeIntervalSinceReferenceDate:] #22 0x32b3beb4 in -[NSDate(NSCalendarDateStuff) descriptionWithCalendarFormat:timeZone:locale:] #23 0x323642fc in -[NSDate(Goodies) descriptionForMimeHeaders] #24 0x32a6e812 in -[MailComposeController headersUseSuspendInfo:] #25 0x32a71e38 in -[MailComposeController messageUseSuspendInfo:endingEditing:] #26 0x32a6e594 in -[MailComposeController _getMessage:] #27 0x32a6e536 in -[MailComposeController message] #28 0x32a72bcc in -[MailComposeController deliverMessageRemotely] #29 0x32a7cab0 in -[_MFMailComposeRootViewController mailComposeControllerCompositionFinished:] #30 0x32a6e0a0 in -[MailComposeController sendMessage] #31 0x32a7086a in -[MailComposeController send:] #32 0x32c29ffa in -[NSObject performSelector:withObject:] #33 0x32a661cc in -[MailComposeView _sendButtonClicked:] I've tried the MFMailComposeController as a child of different views with the same result. Can anyone advise? I'd really appreciate it!

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• NSURLErrorBadURL error

  - by Victor jiang

  My iphone app called Google Local Search(non javascript version) to behave some search business. Below is my code to form a url: NSString *url = [NSString stringWithFormat:@"http://ajax.googleapis.com/ajax/services/search/local?v=1.0&q=%@", keyword]; NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:url]]; [request setHTTPMethod:@"GET"]; //get response NSHTTPURLResponse* urlResponse = nil; NSError *error = [[[NSError alloc] init] autorelease]; NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error]; NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; When the keyword refers to english characters, it works fine, but when refers to chinese characters(encoded in UTF8, such as '???' whose UTF8 code is 'e5a4a9 e5ae89 e997a8'), it will report NSURLErrorBadURL error(-1000, Returned when a URL is sufficiently malformed that a URL request cannot be initiated). Why? Then I carry out further investigation, I use Safari and type in the url below: http://ajax.googleapis.com/ajax/services/search/local?v=1.0&q=??? It also works, and the output I got from Macsniffer is: /ajax/services/search/local?v=1.0&q=%E5%A4%A9%E5%AE%89%E9%97%A8 So I write a testing url directly in my app NSString *url = [NSString stringWithFormat:@"http://ajax.googleapis.com/ajax/services/search/local?v=1.0&q=%E5%A4%A9%E5%AE%89%E9%97%A8"]; And what I got from the Macsniffer is some other thing: /ajax/services/search/local?v=1.0&q=1.687891E-28750X1.417C0001416CP-102640X1.4CC2D04648FBP-9999-1.989891E+0050X1.20DC00184CC67P-953E8E99A8 It seems my keyword "%E5%A4%A9%E5%AE%89%E9%97%A8" was translated into something else. So how can I form a valid url? I do need help!

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• Having problems with uploading photos to TwitPic using OAuth in Objective C on the iPhone

  - by M. Bedi

  I have been working on an iPhone app that has a feature of uploading photos to TwitPic. I have it working with basic authentication. I am trying to get it working with OAuth. I am getting authentication errors. I have studied very carefully the TwitPic documentation. I am authorising the app by displaying a UI Web View and the it returns a PIN value. I enter the PIN value in the app and request the token. I am able to upload status updates to Twitter but not photos. My code is based on some example code from here: Example iPhone app using OAuth Here is my code: NSString *url = @"http://api.twitpic.com/2/upload.json"; NSString *oauth_header = [oAuth oAuthHeaderForMethod:@"POST" andUrl:url andParams:nil]; NSLog(@"OAuth header : %@\n\n", oauth_header); ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:url]]; [request addRequestHeader:@"User-Agent" value:@"ASIHTTPRequest"]; request.requestMethod = @"POST"; [request addRequestHeader:@"X-Auth-Service-Provider" value:@"https://api.twitter.com/1/account/verify_credentials.json"]; [request addRequestHeader:@"X-Verify-Credentials-Authorization" value:oauth_header]; NSData *imageRepresentation = UIImageJPEGRepresentation(imageToUpload, 0.8); [request setData:imageRepresentation forKey:@"media"]; [request setPostValue:@"Some Message" forKey:@"message"]; [request setPostValue:TWITPIC_API_KEY forKey:@"key"]; [request setDelegate:self]; [request setDidFinishSelector:@selector(requestDone:)]; [request setDidFailSelector:@selector(requestFailed:)]; [request start]; Here is the OAuth Header: OAuth realm="http://api.twitter.com/", oauth_timestamp="1275492425", oauth_nonce="b686f20a18ba6763ac52b689b2ac0c421a9e4013", oauth_signature_method="HMAC-SHA1", oauth_consumer_key="zNbW3Xi3MuS7i9cpz6fw", oauth_version="1.0", oauth_token="147275699-jmrjpwk3B6mO2FX2BCc9Ci9CRBbBKYW1bOni2MYs", oauth_signature="d17HImz6VgygZgbcp845CD2qNnI%3D"

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• Twitter integration and iOS5: semantic and parsing issues

  - by Tyler

  I was using some of Apple's example code to write the Twitter integration for my app. However, I get a whopping amount of errors (mostly being Semantic and parse errors). How can this be solved? -(IBAction)TWButton:(id)sender { ACAccountStore *accountstore = [[ACAccountStore alloc] init]; //Make sure to retrive twitter accounts ACAccountType *accountType = [accountstore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter]; [accountstore requestAccessToAccountsWithType:accountType withCompletionHandler:^(BOOL granted, NSError *error) { if (granted) [{ NSArray *accountsArray = [accountstore accountsWithAccountType:accountType]; if ([accountsArray count] > 0) { ACAccount *twitterAccount = [accountsArray objectAtIndex:0]; TWRequest *postRequest = [[TWRequest alloc] initWithURL:[NSURL URLWithString:@"http://api.twitter.com/1/statuses/update.json"] parameters:[NSDictionary dictionaryWithObject:[@"Tweeted from iBrowser" forKey:@"status"] requestMethod:TWRequestMethodPOST]; [postRequest setAccount:twitterAccount]; [postRequest preformRequestWithHandeler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) { NSString *output = [NSString stringWithFormat:@"HTTP response status: %i", [urlResponse statusCode]]; [self preformSelectorOnMainThread:@selector(displaytext:) withObject:output waitUntilDone:NO]; }]; } }]; } //Now lets see if we can actually tweet -(void)canTweetStatus { if ([TWTweetComposeViewController canSendTweet]) { self.TWButton.enabled = YES self.TWButton.alpha = 1.0f; }else{ self.TWButton.enabled = NO self.TWButton.alpha = 0.5f; } }

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• UIButton overlapping problem in the UIView?

  - by sai

  im trying to create buttons as ahierarchy, first some buttons are displayed if i click any of the buttons it will navigate to the next viewcontroller displaying some more buttons. But here my problem is butons are overlapped with one another . means the buttons that should not be displayed are also comming along with those should be . my code is for(.................) { butt = [[UIButton alloc] initWithFrame:CGRectMake(...)]; image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[arr objectAtIndex:i]]]]; imageView = [[[UIImageView alloc] initWithImage:image] autorelease]; [butt setBackgroundImage:imageView.image forState:UIControlStateNormal]; [butt setTag:i]; [butt addTarget:self action:@selector(onClick:) forControlEvents:UIControlEventTouchUpInside]; [containerView addSubview:butt]; [butt release]; x+=butt.frame.size.width+2*hgap; i+=1; if (i==count+1) //[arr count] { printf("\nIN BREAK BUTTON\n"); break; } } y=y+(butt.frame.size.height+2*vgap); } Thankyou for the solution.

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• iPhone SDK - (void)viewDidLoad { } - Show Progress

  - by Hank Brekke

  I have a long - (void)viewDidLoad { } function that uses the internet to load a page, and whenever the application loads the URL, the screen is black. I have a UIActivityIndicator setup to show that the address is loading, but I don't know how to prevent it from seeming as if the application is not responding, and I don't want to show the network activity indicator [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES]; because the screen will still be black, just with a loader in the top corner. My code is below: - (void)viewDidLoad { NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; email.text = [defaults objectForKey:@"mom_email"]; pass.text = [defaults objectForKey:@"mom_pass"]; if (email.text != nil && pass.text != nil) { [self login:loginBtn]; } } - (IBAction)login:(id)sender { [email resignFirstResponder]; [pass resignFirstResponder]; [loader startAnimating]; // Does nothing though NSString *em = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,(CFStringRef)email.text,NULL,(CFStringRef)@"!*'();:@&=+$,/?%#[]",kCFStringEncodingUTF8); NSString *ps = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,(CFStringRef)pass.text,NULL,(CFStringRef)@"!*'();:@&=+$,/?%#[]",kCFStringEncodingUTF8); NSURL *url = [[NSURL alloc] initWithScheme:@"http" host:@"localhost" path:[[NSString alloc] initWithFormat:@"/app/login.php?email=%@&pass=%@", em, ps]]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *loginResult = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding]; [loader stopAnimating]; NSRange range = [loginResult rangeOfString:@"1"]; if (range.location != NSNotFound) { [self dismissModalViewControllerAnimated:YES]; // Doesn't do anything if function called from viewDidLoad } }

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• cocos2d MFMailComposeViewController

  - by MRaguse

  hi, i tried to insert a mail tool in my app.... my app is based on the cocos2d engine the Toolbar (at the top -cancel,send...) is visible but i can't see the other parts of the mfMailComposerViewController view :-( code: -(void)displayComposerSheet { MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"my message"]; // Set up recipients NSArray *toRecipients = [NSArray arrayWithObject:@"[email protected]"]; NSArray *ccRecipients = [NSArray arrayWithObjects:@"[email protected]", @"[email protected]", nil]; NSArray *bccRecipients = [NSArray arrayWithObject:@"[email protected]"]; [picker setToRecipients:toRecipients]; [picker setCcRecipients:ccRecipients]; [picker setBccRecipients:bccRecipients]; // Attach an image to the email UIImage *screenshot = [[Director sharedDirector] screenShotUIImage]; NSData *myData = UIImagePNGRepresentation(screenshot); [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"AdMotiv"]; // Fill out the email body text NSString *emailBody = @"test"; [picker setMessageBody:emailBody isHTML:NO]; [[picker view] setFrame:CGRectMake(0.0f,0.0f,320.0f, 480.0f)]; [[picker view] setTransform:CGAffineTransformIdentity]; [[picker view] setBounds:CGRectMake(0.0f,0.0f,320.0f, 480.0f)]; //[[[VariableStore sharedInstance] parentView] setTransform: CGAffineTransformIdentity]; //[[[VariableStore sharedInstance] parentView] setBounds : CGRectMake(0.0f, 0.0f, 480.0f, 320.0f)]; UITextField *textfeld = [[UITextField alloc] initWithFrame:CGRectMake(50.0f, 50.0f, 100.0f, 100.0f)]; [[picker view] addSubview:textfeld]; [[[VariableStore sharedInstance] window]addSubview:picker.view]; [[[VariableStore sharedInstance] window] makeKeyAndVisible]; [picker release]; }

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• Crash: iPhone Threading with Blocks

  - by jtbandes

  I have some convenience methods set up for threading with blocks (using PLBlocks). Then in the main portion of my code, I call the method -fetchArrivalsForLocationIDs:callback:errback:, which runs some web API calls in the background. Here's the problem: when I comment out the 2 NSAutoreleasePool-related lines in JTBlockThreading.m, of course I get lots of Object 0x6b31280 of class __NSArrayM autoreleased with no pool in place - just leaking errors. However, if I uncomment them, the app frequently crashes on the [pool release]; line, sometimes saying malloc: *** error for object 0x6e3ae10: pointer being freed was not allocated" *** set a breakpoint in malloc_error_break to debug. I assume I've made a horrible mistake/assumption in threading somewhere, but can anyone figure out what exactly the problem is? // JTBlockThreading.h #import <Foundation/Foundation.h> #import <PLBlocks/Block.h> #define JT_BLOCKTHREAD_BACKGROUND [self invokeBlockInBackground:^{ #define JT_BLOCKTHREAD_MAIN [self invokeBlockOnMainThread:^{ #define JT_BLOCKTHREAD_END }]; #define JT_BLOCKTHREAD_BACKGROUND_END_WAIT } waitUntilDone:YES]; @interface NSObject (JTBlockThreading) - (void)invokeBlockInBackground:(void (^)())block; - (void)invokeBlockOnMainThread:(void (^)())block; - (void)invokeBlockOnMainThread:(void (^)())block waitUntilDone:(BOOL)wait; - (void)invokeBlock:(void (^)())block; @end // JTBlockThreading.m #import "JTBlockThreading.h" @implementation NSObject (JTBlockThreading) - (void)invokeBlockInBackground:(void (^)())block { [self performSelectorInBackground:@selector(invokeBlock:) withObject:[block copy]]; } - (void)invokeBlockOnMainThread:(void (^)())block { [self invokeBlockOnMainThread:block waitUntilDone:NO]; } - (void)invokeBlockOnMainThread:(void (^)())block waitUntilDone:(BOOL)wait { [self performSelectorOnMainThread:@selector(invokeBlock:) withObject:[block copy] waitUntilDone:wait]; } - (void)invokeBlock:(void (^)())block { //NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; block(); [block release]; //[pool release]; } @end - (void)fetchArrivalsForLocationIDs:(NSString *)locIDs callback:(JTWSCallback)callback errback:(JTWSErrback)errback { JT_PUSH_NETWORK(); JT_BLOCKTHREAD_BACKGROUND NSError *error = nil; // Create API call URL NSURL *url = [NSURL URLWithString: [NSString stringWithFormat:@"%@/arrivals/appID/%@/locIDs/%@", TRIMET_BASE_URL, appID, locIDs]]; if (!url) { JT_BLOCKTHREAD_MAIN errback(@"That’s not a valid Stop ID!"); JT_POP_NETWORK(); JT_BLOCKTHREAD_END return; } // Call API NSData *data = [NSData dataWithContentsOfURL:url options:0 error:&error]; if (!data) { JT_BLOCKTHREAD_MAIN errback([NSString stringWithFormat: @"Had trouble downloading the arrival data! %@", [error localizedDescription]]); JT_POP_NETWORK(); JT_BLOCKTHREAD_END return; } CXMLDocument *doc = [[CXMLDocument alloc] initWithData:data options:0 error:&error]; if (!doc) { JT_BLOCKTHREAD_MAIN // TODO: further error description // (TouchXML doesn't provide information with the error) errback(@"Had trouble reading the arrival data!"); JT_POP_NETWORK(); JT_BLOCKTHREAD_END return; } NSArray *nodes = nil; CXMLElement *resultSet = [doc rootElement]; // Begin building the response model JTWSResponseArrivalData *response = [[[JTWSResponseArrivalData alloc] init] autorelease]; response.queryTime = [NSDate JT_dateWithTriMetWSTimestamp: [[resultSet attributeValueForName:@"queryTime"] longLongValue]]; if (!response.queryTime) { // TODO: further error check? NSLog(@"Hm, query time is nil in %s... response %@, resultSet %@", __PRETTY_FUNCTION__, response, resultSet); } nodes = [resultSet nodesForXPath:@"//arrivals:errorMessage" namespaceMappings:namespaceMappings error:&error]; if ([nodes count] > 0) { NSString *message = [[nodes objectAtIndex:0] stringValue]; response.errorMessage = message; // TODO: this probably won't be used... JT_BLOCKTHREAD_MAIN errback([NSString stringWithFormat: @"TriMet error: “%@”", message]); JT_POP_NETWORK(); JT_BLOCKTHREAD_END return; } // Build location models nodes = [resultSet nodesForXPath:@"/arrivals:location" namespaceMappings:namespaceMappings error:&error]; if ([nodes count] <= 0) { NSLog(@"Hm, no locations returned in %s... xpath error %@, response %@, resultSet %@", __PRETTY_FUNCTION__, error, response, resultSet); } NSMutableArray *locations = [NSMutableArray arrayWithCapacity:[nodes count]]; for (CXMLElement *loc in nodes) { JTWSLocation *location = [[[JTWSLocation alloc] init] autorelease]; location.desc = [loc attributeValueForName:@"desc"]; location.dir = [loc attributeValueForName:@"dir"]; location.position = [[[CLLocation alloc] initWithLatitude:[[loc attributeValueForName:@"lat"] doubleValue] longitude:[[loc attributeValueForName:@"lng"] doubleValue]] autorelease]; location.locID = [[loc attributeValueForName:@"locid"] integerValue]; } // Build arrival models nodes = [resultSet nodesForXPath:@"/arrivals:arrival" namespaceMappings:namespaceMappings error:&error]; if ([nodes count] <= 0) { NSLog(@"Hm, no arrivals returned in %s... xpath error %@, response %@, resultSet %@", __PRETTY_FUNCTION__, error, response, resultSet); } NSMutableArray *arrivals = [[NSMutableArray alloc] initWithCapacity:[nodes count]]; for (CXMLElement *arv in nodes) { JTWSArrival *arrival = [[JTWSArrival alloc] init]; arrival.block = [[arv attributeValueForName:@"block"] integerValue]; arrival.piece = [[arv attributeValueForName:@"piece"] integerValue]; arrival.locID = [[arv attributeValueForName:@"locid"] integerValue]; arrival.departed = [[arv attributeValueForName:@"departed"] boolValue]; // TODO: verify arrival.detour = [[arv attributeValueForName:@"detour"] boolValue]; // TODO: verify arrival.direction = (JTWSRouteDirection)[[arv attributeValueForName:@"dir"] integerValue]; arrival.estimated = [NSDate JT_dateWithTriMetWSTimestamp: [[arv attributeValueForName:@"estimated"] longLongValue]]; arrival.scheduled = [NSDate JT_dateWithTriMetWSTimestamp: [[arv attributeValueForName:@"scheduled"] longLongValue]]; arrival.fullSign = [arv attributeValueForName:@"fullSign"]; arrival.shortSign = [arv attributeValueForName:@"shortSign"]; NSString *status = [arv attributeValueForName:@"status"]; if ([status isEqualToString:@"estimated"]) { arrival.status = JTWSArrivalStatusEstimated; } else if ([status isEqualToString:@"scheduled"]) { arrival.status = JTWSArrivalStatusScheduled; } else if ([status isEqualToString:@"delayed"]) { arrival.status = JTWSArrivalStatusDelayed; } else if ([status isEqualToString:@"canceled"]) { arrival.status = JTWSArrivalStatusCanceled; } else { NSLog(@"Unknown arrival status %s in %@... response %@, arrival %@", status, __PRETTY_FUNCTION__, response, arv); } NSArray *blockPositions = [arv nodesForXPath:@"/arrivals:blockPosition" namespaceMappings:namespaceMappings error:&error]; if ([blockPositions count] > 1) { // The schema allows for any number of blockPosition elements, // but I'm really not sure why... NSLog(@"Hm, more than one blockPosition in %s... response %@, arrival %@", __PRETTY_FUNCTION__, response, arv); } if ([blockPositions count] > 0) { CXMLElement *bpos = [blockPositions objectAtIndex:0]; JTWSBlockPosition *blockPosition = [[JTWSBlockPosition alloc] init]; blockPosition.reported = [NSDate JT_dateWithTriMetWSTimestamp: [[bpos attributeValueForName:@"at"] longLongValue]]; blockPosition.feet = [[bpos attributeValueForName:@"feet"] integerValue]; blockPosition.position = [[[CLLocation alloc] initWithLatitude:[[bpos attributeValueForName:@"lat"] doubleValue] longitude:[[bpos attributeValueForName:@"lng"] doubleValue]] autorelease]; NSString *headingStr = [bpos attributeValueForName:@"heading"]; if (headingStr) { // Valid CLLocationDirections are > 0 CLLocationDirection heading = [headingStr integerValue]; while (heading < 0) heading += 360.0; blockPosition.heading = heading; } else { blockPosition.heading = -1; // indicates invalid heading } NSArray *tripData = [bpos nodesForXPath:@"/arrivals:trip" namespaceMappings:namespaceMappings error:&error]; NSMutableArray *trips = [[NSMutableArray alloc] initWithCapacity:[tripData count]]; for (CXMLElement *tripDatum in tripData) { JTWSTrip *trip = [[JTWSTrip alloc] init]; trip.desc = [tripDatum attributeValueForName:@"desc"]; trip.destDist = [[tripDatum attributeValueForName:@"destDist"] integerValue]; trip.direction = (JTWSRouteDirection)[[tripDatum attributeValueForName:@"dir"] integerValue]; trip.pattern = [[tripDatum attributeValueForName:@"pattern"] integerValue]; trip.progress = [[tripDatum attributeValueForName:@"progress"] integerValue]; trip.route = [[tripDatum attributeValueForName:@"route"] integerValue]; [trips addObject:trip]; [trip release]; } blockPosition.trips = trips; [trips release]; NSArray *layoverData = [bpos nodesForXPath:@"/arrivals:layover" namespaceMappings:namespaceMappings error:&error]; NSMutableArray *layovers = [[NSMutableArray alloc] initWithCapacity:[layoverData count]]; for (CXMLElement *layoverDatum in layoverData) { JTWSLayover *layover = [[JTWSLayover alloc] init]; layover.start = [NSDate JT_dateWithTriMetWSTimestamp: [[layoverDatum attributeValueForName:@"start"] longLongValue]]; layover.end = [NSDate JT_dateWithTriMetWSTimestamp: [[layoverDatum attributeValueForName:@"end"] longLongValue]]; // TODO: it seems the API can send a <location> inside a layover (undocumented)... support? [layovers addObject:layover]; [layover release]; } blockPosition.layovers = layovers; [layovers release]; arrival.blockPosition = blockPosition; [blockPosition release]; } [arrivals addObject:arrival]; [arrival release]; } // Add arrivals to corresponding locations for (JTWSLocation *loc in locations) { loc.arrivals = [arrivals selectWithBlock:^BOOL (id arv) { return loc.locID == ((JTWSArrival *)arv).locID; }]; } [arrivals release]; response.locations = locations; [locations release]; // Build route status models (used in inclement weather) nodes = [resultSet nodesForXPath:@"/arrivals:routeStatus" namespaceMappings:namespaceMappings error:&error]; NSMutableArray *routeStatuses = [NSMutableArray arrayWithCapacity:[nodes count]]; for (CXMLElement *stat in nodes) { JTWSRouteStatus *status = [[JTWSRouteStatus alloc] init]; status.route = [[stat attributeValueForName:@"route"] integerValue]; NSString *statusStr = [stat attributeValueForName:@"status"]; if ([statusStr isEqualToString:@"estimatedOnly"]) { status.status = JTWSRouteStatusTypeEstimatedOnly; } else if ([statusStr isEqualToString:@"off"]) { status.status = JTWSRouteStatusTypeOff; } else { NSLog(@"Unknown route status type %s in %@... response %@, routeStatus %@", status, __PRETTY_FUNCTION__, response, stat); } [routeStatuses addObject:status]; [status release]; } response.routeStatuses = routeStatuses; [routeStatuses release]; JT_BLOCKTHREAD_MAIN callback(response); JT_POP_NETWORK(); JT_BLOCKTHREAD_END JT_BLOCKTHREAD_END }

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• How do I get google protocol buffer messages over a socket connection without disconnecting the clie

  - by Dan

  Hi there, I'm attempting to send a .proto message from an iPhone application to a Java server via a socket connection. However so far I'm running into an issue when it comes to the server receiving the data; it only seems to process it after the client connection has been terminated. This points to me that the data is getting sent, but the server is keeping its inputstream open and waiting for more data. Would anyone know how I might go about solving this? The current code (or at least the relevant parts) is as follows: iPhone: Person *person = [[[[Person builder] setId:1] setName:@"Bob"] build]; RequestWrapper *request = [[[RequestWrapper builder] setPerson:person] build]; NSData *data = [request data]; AsyncSocket *socket = [[AsyncSocket alloc] initWithDelegate:self]; if (![socket connectToHost:@"192.168.0.6" onPort:6666 error:nil]){ [self updateLabel:@"Problem connecting to socket!"]; } else { [self updateLabel:@"Sending data to server..."]; [socket writeData:data withTimeout:-1 tag:0]; [self updateLabel:@"Data sent, disconnecting"]; //[socket disconnect]; } Java: try { RequestWrapper wrapper = RequestWrapper.parseFrom(socket.getInputStream()); Person person = wrapper.getPerson(); if (person != null) { System.out.println("Persons name is " + person.getName()); socket.close(); } On running this, it seems to hang on the line where the RequestWrapper is processing the inputStream. I did try replacing the socket writedata method with [request writeToOutputStream:[socket getCFWriteStream]]; Which I thought might work, however I get an error claiming that the "Protocol message contained an invalid tag (zero)". I'm fairly certain that it doesn't contain an invalid tag as the message works when sending it via the writedata method. Any help on the matter would be greatly appreciated! Cheers! Dan (EDIT: I should mention, I am using the metasyntactic gpb code; and the cocoaasyncsocket implementation)

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• Base64 en/decoding between xstream and iPhone SDK

  - by Matt McMinn

  I am passing a byte array from a java server to an iPad client in XML. The server is using xstream to convert the byte array to XML with the EncodedByteArrayConverter, which should convert the array to Base 64. Using xstream, I can decode the xml back to the proper byte array in a java client, but in the iPad client, I'm getting an invalid length error. To do my decoding, I'm using the code at the bottom of this page. The length of the string is indeed not a multiple of 4, so there must be something strange with my string - although since xstream can decode it just fine, I'm guessing there's just something I need to to on the iPad side to get it to decode. I've tried cutting off padding at the end of the string to get it down to the right size, and that does allow the decoder to work, but I end up with JPG's that have invalid headers, and are not displayable. On the server side, I'm using the following code: Object rtrn = getByteArray(); XStream xstream = new XStream(); String xml = xstream.toXML(rtrn); On the client side, I'm calling the above decoder from the XML parsing callback like this: -(void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { NSLog(@"Converting data; string length: %d", [string length]); //NSLog(@"%@", string); NSData *data = [Base64 decode:string]; NSLog(@"converted data length: %d", [data length]); } Any ideas what could be going wrong?

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• Passing html parameters to server odd problem

  - by StealthRT

  Hey all i am having a weird problem with sending data back to my server. This is the code i am using: NSString *theURL =[NSString stringWithFormat:@"http://www.xxx.com/confirm.asp?theID=%@&theName=%@&empID=%@&theComp=%@", theConfirmNum, tmpNBUserRow.userName, labelTxt.text, theID]; NSLog(@"%@,%@,%@,%@", theConfirmNum, tmpNBUserRow.userName, labelTxt.text, theID); NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:theURL]]; [request setHTTPMethod:@"POST"]; NSError *error; NSURLResponse *response; NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding]; if ([data isEqualToString:@"Done"]) I can run the code from the browser and it works just fine using the data i got from the NSLog output. The NSLog output for each value is correct. But for some reason when i put a break on the IF ([data isEqualToString:@"Done"]) it has no return value. I checked each value for what it was sending (and again, it was correct in the NSLog output) and i found that the value "theID" said "Out of scope". Although, again, the NSLog had the value in it correctly? So i searched the forum and found a simular problem. I took their advice and added "RETAIN" to the "theID" value like so: theID = [customObjInstance TID]; [theID retain]; However, that did not solve the issue... Here is the console NSLog output: [Session started at 2010-04-11 01:31:50 -0400.] wait_fences: failed to receive reply: 10004003 wait_fences: failed to receive reply: 10004003 nbTxt(5952,0xa0937500) malloc: *** error for object 0x3c0ebc0: double free *** set a breakpoint in malloc_error_break to debug 2010-04-11 01:32:12.270 nbTxt[5952:207] 5122,Rob S.,5122,NB010203 The NSLog values i am sending is the last line "5122,Rob S.,5122,NB010203" Any help would be great :o) David

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• EXC_BAD_ACCESS NSUrlConnection

  - by Lars

  Hi all, i got an EXC_BAD_ACCESS when i perform the last line of the function (webData). -(void)requestSoap{ NSString *requestUrl = @"http://www.website.com/webservice.php"; NSString *soapMessage = @"the soap message"; //website and soapmessage are valid in original code. NSError **error; NSURLResponse *response; //Convert parameter string to url NSURL *url = [NSURL URLWithString:requestUrl]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10]; NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]]; //Create an XML message for webservice [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"]; [theRequest setHTTPMethod:@"POST"]; [theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]]; NSData *webData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:error]; } I tried not to release a thing, because what i read on the net is it's almost always a memory thing. When i debug the code (NSZombieEnabled = YES) this is what i get: [Session started at 2010-05-31 15:56:13 +0200.] GNU gdb 6.3.50-20050815 (Apple version gdb-1461.2) (Fri Mar 5 04:43:10 UTC 2010) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-apple-darwin".sharedlibrary apply-load-rules all Attaching to process 19856. test(19856) malloc: recording malloc stacks to disk using standard recorder test(19856) malloc: enabling scribbling to detect mods to free blocks test(19856) malloc: process 19832 no longer exists, stack logs deleted from /tmp/stack-logs.19832.test.w9Ek4L.index test(19856) malloc: stack logs being written into /tmp/stack-logs.19856.test.URRpQF.index Program received signal: “EXC_BAD_ACCESS”. Does anybody have a clue?? Thanks a lot! Lars

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