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  • Why is this leaking memory? UIImage `cellForRowAtIndexPath:`

    - by Emil
    Hey. Instruments' Leaks tells me that this UIImage is leaking: UIImage *image = [[UIImage alloc] initWithContentsOfFile:[imagesPath stringByAppendingPathComponent:[NSString stringWithFormat:@"/%@.png", [postsArrayID objectAtIndex:indexPath.row]]]]; // If image contains anything, set cellImage to image. If image is empty, try one more time or use noImage.png, set in IB if (image != nil){ // If image != nil, set cellImage to that image cell.cellImage.image = image; } image = nil; [image release]; (class cell (custom table view cell) also releases cellImage in dealloc method). I haven't got a clue of why it's leaking, but it certainly is. The images gets loaded multiple times in a cellForRowAtIndexPath:-method. The first three cells' image does not leak (130px high, all the space avaliable). Leaks gives me no other info than that a UIImage allocated here in the code leaks. Can you help me figure it out? Thanks :)

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  • POSTDATA, ASIHTTPrequest + instapaper

    - by Andrew
    Hi guys, I'm trying to use ASIHTTPRequest to submit links to instapaper (http://www.instapaper.com/api). I'm able to authenticate but I get a 400 response when trying to submit a link, so I'm clearly in need of figuring how to use postdata. Any help appreciated. Sample code attached. Thanks NSURL *url = [NSURL URLWithString:urlInstapaperAddUrl]; ASIHTTPRequest instapaperAuthRequest = [ASIHTTPRequest requestWithURL:url]; [instapaperAuthRequest setDelegate:self]; [instapaperAuthRequest setRequestMethod:@"PUT"]; NSData temp = [[NSData alloc] initWithData:[@"url=http://www.redhat.com" dataUsingEncoding:NSASCIIStringEncoding]]; [instapaperAuthRequest appendPostData:temp]; [instapaperAuthRequest addBasicAuthenticationHeaderWithUsername:@"myusername" andPassword:@"mypassword"]; [instapaperAuthRequest startAsynchronous];

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  • Embed font in a mac bundle

    - by RW
    I have a program I am writing. I want to use a fancy font. Can I just embed my font into my bundle and use it from there. My code... NSMutableAttributedString *recOf; recOf = [[NSMutableAttributedString alloc] initWithString:@"In Recognition of"]; length = [recOf length]; [recOf addAttribute:NSFontAttributeName value:[NSFont fontWithName:@"Edwardian Script ITC" size:50] range:NSMakeRange(0, length)]; [[NSColor blackColor] set]; p.x = (bounds.size.width/2)- (([recOf size].width)/2); p.y = (bounds.size.height/1.7); [recOf drawAtPoint:p]; [recOf release];

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  • Release a retain UIImage property loaded via imageNamed?

    - by user158103
    In my class object i've defined a (nonatomic, retain) property for UIImage. I assigned this property with an image loaded via [UIImage imageNamed:@"file.png"]; If at some point I want to reassign this property to another image, should I have to release the prior reference? I am confused because by the retain property I know i should release it. But because imageNamed is a convenience method (does not use alloc), im not sure what rule to apply here. Thanks for the insight!

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  • Retrieving NSDate from NSString

    - by Olivier de Jonge
    I have an iPhone app. that is receiving data with IRFC 3339 timestamp format (e.g. @"2010-01-29T11:30:00.000+01:00"), as in GData. I want to convert the data to an NSDate NSDateFormatter *inputFormatter = [[[NSDateFormatter alloc] init] autorelease]; [inputFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSS"]; [currentEntry setStartTime:[inputFormatter dateFromString: ][currentEntry startTimeString]]]; But I'm missing out how to convert the last part of the string @"2010-01-29T11:30:00.000+01:00": the time offset. Anyone knows what I have to add to this String to take the time offset in account too?

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  • NSThread running a class

    - by Thomas Joulin
    Hi, Every the example I find on the internet (including Apple doc) sets the target to self like this : [NSThread detachNewThreadSelector:@selector(threadedTask) toTarget:self withObject:nil]; Since i would like to do a more complex task in background (involving multiple methods), I thought of creating a class Task called like this : Task *task = [[Task alloc] init]; [NSThread detachNewThreadSelector:@selector(main) toTarget:task withObject:nil]; but I wonder, how will be handled the instance variables of my class Task ? in my method main can I safely call methods of my class Task using [self myMethod] and modifying members variables assuming I'm the only thread accessing it ? This way of handling threads seems weird to me, sorry if my question is stupid ^^ Thanks in advance

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  • UITextView like iPhone Notes application

    - by Mark
    I am trying to recreate the Notes application. So far I got the following: textView = [[UITextView alloc] initWithFrame:CGRectMake(25.0, 30.0, 295.0, 214.0)]; textView.delegate = self; textView.backgroundColor = [UIColor clearColor]; textView.font = [UIFont fontWithName:@"MarkerFelt-Thin" size:19.0]; [self.view addSubview:textView]; The thing I dont know is how they were able to put the date on top like a header (it is within the UIScrollView that is obvious). Also under every text there is a line where did that came from. Does someone have an idea or a sample project I can take a look at?

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  • Frame of viewForHeaderInSection is always the same size

    - by gabac
    - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { if(section != 0) { UIView *view = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 100, 30)]; view.backgroundColor = [UIColor redColor]; return view; [view release]; } else { return tableView.tableHeaderView; } } This is my implementation of viewForHeaderInSection but whatever frame I make it's always showing me the same red frame. Do you see any problem with my code? Can't post the picture because of my rep but here is the link ;-) http://img638.imageshack.us/img638/3350/bildschirmfoto20100315uq.png

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  • How to present the same modalView after dismissing it once

    - by David Casillas
    I'm having some problem trying to present a modal view controller after it has been presented the first time, so I just start a little test method, it presents, dismisses and presents again the same controller modally. // This is just test Code. MYViewController *vc = [[MYViewController alloc] init]; [self presentModalViewController:vc animated:YES]; [self dismissModalViewControllerAnimated:YES]; [self presentModalViewController:vc animated:YES]; I get the error: 2011-11-15 09:50:42.678 Proyecto3[1260:11603] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller <RootViewController: 0x6d9d090>.' The documentation does not add any clue here.

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  • viewDidLoad never called in Sub-classed UIViewController

    - by Steve
    I've run into some trouble with loading a sub-classed UIViewController from a nib. My viewDidLoad function is never called. The super-class has no nib, but the sub-classes each have their own. i.e. @interface SuperClass : UIViewController { } @end @interface SubClass : SuperClass{ } @end @implementation SubClass - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { } return self; } - (void)viewDidLoad{ // Never called } The view is loaded from a nib as follows: SubClass *scvc = [[SubClass alloc] initWithNibName:@"SubClass" bundle:nil]; [self.navigationController pushViewController:scvc animated:YES]; [scvc release]; There is a nib file with this name and it has it's file owner's class set properly. viewDidLoad is not called in the child or super. Any ideas?

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  • How to hide parent tabbar when pushing controller in navigationController

    - by Yannis
    Hi all, I have an application with a tab bar controller and each view contains a navigation controller. My MainWindow looks as follows: Everything works fine as it is but I noticed a problem when pushing a details view to the navigation controller. In the didSelectRowAtIndexPath for a tableviewcontroller that belongs to the tab bar controller (the one called Latest in the image) I am doing this: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { ArticleViewController *articleController = [[ArticleViewController alloc] initWithNibName:@"ArticleView" bundle:nil]; [self.navigationController pushViewController:articleController animated:YES]; [articleController release]; articleController = nil; } The ArticleViewController has its own tabbar because it needs to display different things. The problem is that when I push the ArticleViewController into the navigationController I see both tabbars at the bottom of the view. Is there any way I can solve this problem? Thanks in advance

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  • Memory Management - Objective C NSString

    - by reising1
    I have an NSMutableDictionary called "output" and I am adding an NSString into it that is an integer. What is the proper way to do this? I can't figure it out. Everything I've tried ends up giving memory leaks. This is what I currently have: val is an int countryName is an NSString Here is how I declare "output": NSMutableDictionary *output = [[[NSMutableDictionary alloc] init] autorelease]; Here is the code that causes a memory leak: NSString *temp = [NSString stringWithFormat:@"%d",val]; [output setValue:temp forKey:countryName];

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  • Playing audio from a wav file in iPhone SpeakHere example

    - by Mo
    I'm working with the iPhone SpeakHere example, and I would like to be able to play audio from either the mic (as in the example) or from a wav file. I have working code to play from a particular wav file, which looks like this: NSString *path = [[NSBundle mainBundle] pathForResource:@"basketBall" ofType:@"wav"]; AVAudioPlayer* theAudio=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL]; theAudio.delegate = self; [theAudio play]; So I'm fine with actually getting the wav to play in the application (I can hook it up to a button, etc.) but I would like it to also behave the same way pushing the "Play" button does after recorded speech, in that it should be connected to the same visualization (which I have modified quite a bit, but essentially shows the current volume, among other things). Thanks for your help!

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  • NSWindowController and isWindowLoaded

    - by Jim
    Hi, I have an NSWindowController and I initialize it like this; + (MyWindowController *) sharedController { static MyWindowController *singleton = nil; if (!singleton) singleton = [[self alloc] initWithWindowNibName: @"myWindow"]; return singleton; } and I show windows like this; [[MyWindowController sharedController] showWindow: nil]; Now the problem is that I need information from some controls on that window. But I do not want to load the window if it's not yet loaded because then I can just go with the defaults. Should I use @property to access the singleton? or what is recommended here? (If @property, then please give me the readonly, nonatomic attributes too.)

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  • Youtube video embed in WebView and MoviePlayer control

    - by Tronic
    hi, i embed a youtube video into a webview. the problem is: when i pop the current view (which includes the webview) from navigation controller, the the movie itself stops, but the audio is continues running. when i push the view controller on the navigation controller again, i can play the movie newly, but the old audio is still there. my webview code ids_ = [NSArray arrayWithObjects:@"2b84g38Z_60",@"3URx0tM-rMc",@"HZpi-2HVhq0",@"Hhns0DRPI44",@"hRuoxRQ4Q3k",@"lkMXwNBGRA8",@"tXGc6wWIFJo",@"uzGdEn8aW-Q",@"ZAoEBdt8C5M",@"vn8EJqt2BvQ",@"7Z_qRbjG6Ck",@"JspRcxGUijs"@"lM2lcVOh5YU",@"2b84g38Z_60",nil]; int numIds_ = [ids_ count]; NSLog(@"%d", arc4random()%numIds_); NSString *youTubeVideoHTML = [[NSString alloc] initWithFormat:@"<html><head></head><body style=\"margin:0;background-color:#000;\"><iframe class=\"youtube-player\" type=\"text/html\" width=\"640\" height=\"365\" src=\"http://www.youtube.com/embed/%@\" frameborder=\"0\"></iframe></body></html>", [ids_ objectAtIndex:arc4random()%numIds_]]; NSLog(youTubeVideoHTML); [youtubeView loadHTMLString:youTubeVideoHTML baseURL:nil]; thanks in advance

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  • How to create the slide show option for the photos in my application in iphone?

    - by Warrior
    I am new to iphone development.I want to create an application which shows the photos in the device.I have to implement the feature of slide show also.I am using UIImagePickerController to access the photos of the device. Here is my code - (void)viewDidLoad { self.navigationItem.title = @"Pictures"; self.navigationController.navigationBar.tintColor = [UIColor blackColor]; self.imgpicker = [[UIImagePickerController alloc] init]; self.imgpicker.allowsImageEditing = YES; self.imgpicker.delegate = self; self.imgpicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [super viewDidLoad]; } I am not able to see the slide show tool bar at the bottom of the photo list view.I am able to see the slide show tab bar, when i directly click on photos application on my device.How can i add the slide show tool bar in my application.Please help me out.Thanks.

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  • My iPhone App doesn't work in iOS 4. Why?

    - by noflipes
    Hi everybody. I make a iPhone App that display some videos, I made it with Xcode 3.2.2 with iPhone SDK 3.1.3 and works fine. But a few days ago I downloaded the last version of the iPhone SDK for iOS 4, the proyect Build ok, no erros, no warnings, but when I run the aplication the video didn't work, the image didn't load but sound works. I don't understand it. Here is the code that I used. NSBundle *Bundle = [NSBundle mainBundle]; NSString *moviePath = [Bundle pathForResource:@"Prueba" ofType:@"mp4"]; NSURL *movieURL = [[NSURL fileURLWithPath:moviePath] retain]; MPMoviePlayerController *theMovie = [[MPMoviePlayerController alloc] initWithContentURL:movieURL]; theMovie.scalingMode = MPMovieScalingModeFill; [theMovie play]; Some idea? Best regards

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  • Cocoa -- getting a simple NSImageView to work

    - by William Jockusch
    I am confused about why this code does not display any image: In the app delegate: - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { NSRect rect = window.frame; rect.origin.x = 0; rect.origin.y = 0; BlueImageView *blueImageView = [[BlueImageView alloc]initWithFrame:rect]; window.contentView = blueImageView; // also tried [window.contentView addSubview: blueImageView]; } BlueImageView.h: @interface BlueImageView : NSImageView { } @end BlueImageView.m: @implementation BlueImageView - (id)initWithFrame:(NSRect)frame { self = [super initWithFrame:frame]; if (self) { [self setImage: [NSImage imageNamed:@"imagefile.png"]]; NSAssert(self.image, @""); NSLog (@"Initialized"); } return self; } - (void)drawRect:(NSRect)dirtyRect { } @end The file imagefile.png exists. The NSAssert is not causing an exception. The NSLog is firing. But no image shows up in the window.

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  • NSMutableArray EXC_BAD_EXCESS SIGBUS

    - by sujyanarayan
    Hi, I've the following code which causes crashes after sometime as i've set the below code in a timer:- CGImageRef cgImage = UIGetScreenImage(); [array addObject:(id)cgImage]; CGImageRelease(cgImage); Where initiallly i've declared "array" as: array = [[NSMutableArray alloc] init]; The timer goes well till 10 seconds as timer is of 1/10 seconds after 10 seconds it crashes. I think the application crashes because of EXC_BAD_EXCESS but dont know how to solve. Can Anybody help in solving the problem? Thanks in Adv.

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  • UIImageWriteToSavedPhotosAlbum Problem

    - by Momeks
    Hi , i try to save a photo from camera after take a photo with a button . here is my codes: -(IBAction)takePic { ipc = [[UIImagePickerController alloc]init]; ipc.delegate = self; ipc.sourceType = UIImagePickerControllerSourceTypeCamera; [self presentModalViewController:ipc animated:YES]; } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { img.image = [info objectForKey:UIImagePickerControllerOriginalImage]; [[picker parentViewController]dismissModalViewControllerAnimated:YES]; [picker release]; } but i dont know why doesnt save anything !

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  • UITableView don't react on a tap

    - by aspcartman
    I have a fully working grouped tableview. But when i just tap on a cell - nothing happens. willSelectRowAtIndexPath is not even being called. All outlets are set correctly, userInteractions are enabled, tableView is the only view on a page. Googling for hours made no success. Everyone has a selection feature from the begining and someone even tries to ged rid of it. Help, please. Cell creation: UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"FriendCell"];

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  • Presenting UIModalViews in Landscap mode

    - by Dominik
    Hello, I'm trying to present some UIModalFormSheets in a my iPad application. It's working without any problems, except one thing: When I have my iPad in landscape mode my modal form sheet is moving to the center of the screen and THEN rotates into the appropiate angle. All I want is to present the modal form sheet in the right angle according to the view mode (portrait or landscape), BEFORE it is displayed, so that the user doesn't see this rotation. I have tried all the modes for modalTransitionStyle and modalPresentationStyle, but nothing seems to prevent the modal form sheet from rotating after it is displayed. This is what I'm doing: NewFavouriteSheet *newFavouriteSheet = [[NewFavouriteSheet alloc] initWithNibName:@"NewFavouriteSheet" bundle:nil]; newFavouriteSheet.modalPresentationStyle = UIModalPresentationFormSheet; [self presentModalViewController:newFavouriteSheet animated:NO]; Does anyone has a suggestion on how to show the modal view in a correct way? Thanks for help. Dominik

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  • UINavigationController Push Crash in Distribution but not Release

    - by Alavoil
    I have a UINavigationController that I will be pushing a new view onto from selection of a UITableView row. I have tested this feature in "Release" configuration and it works perfectly, however when I build for "Distribution" it crashes when trying to push the new view onto the stack. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { /* irrelevant code */ DetailsViewController *detailController = [[DetailsViewController alloc] initWithNibName:@"DetailsViewController" bundle:nil]; detailController.name = tmpName; detailController.time = tmpTime; [self.navigationController pushViewController:detailController animated:YES]; return nil; } An exception is thrown on the line where the controller is pushed onto the stack. I have verified that the detailController is not nil. Again, this only happens in my "Distribution" build of the code. Any ideas?

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  • Table View Cell value from iphone

    - by Shibin Moideen
    Hi all, I just want to get the value of a cell in the table view when i tap on it.. can any one help me in this.? Thanks in Advance Shibin Moideen - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { appDelegate.courseName=[appDelegate.courses objectAtIndex:indexPath]; NSLog(@"%@",appDelegate.courseName); DetailCourseViewController *detailController = [[DetailCourseViewController alloc] initWithNibName:@"DetailCourseView" bundle:nil]; [self presentModalViewController:detailController animated:YES]; } is that done in this way. also i need to store that value in a string which i declared in the app delegate.

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  • iphone's nsxmlparser parsing RSS causes encoding problems

    - by Tankista
    Hi, Im working on simle RSS reader. This reader loads data from internet via this code: NSXMLParser *rss = [[NSXMLParser alloc] initWithURL:[NSURL URLWithString:@"http://twitter.com/statuses/user_timeline/50405236.rss"]]; My problem is with encoding. RSS 2.0 file is supposed to be UTF8 encoded according to encoding attribute in XML file. <?xml version="1.0" encoding="utf-8"?> So when I download URLs content I get text truncated after first occurance of char with diacritics, example: l š c t ž ý á í é, etc. I tried to solve the problem by downloading URL as UTF8 string, I used this code: NSString *rssXmlString = [NSString stringWithContentsOfURL: [NSURL URLWithString: @"http://www.macblog.sk/rss.xml"] encoding:NSUTF8StringEncoding error: nil]; NSData *rssXmlData = [rssXmlString dataUsingEncoding: NSUTF8StringEncoding]; Did not help. Thanx for your responses.

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