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  • Get String Value from NSDictionary

    - by Matt S.
    I have the following code: NSMutableDictionary *jsonObj = [parser objectWithString:json_string error:nil]; NSString *test = [[[jsonObj objectForKey:@"questions"] valueForKey:@"owner"] valueForKey:key]; but what I get back is: ( 1a19f089a2bc4ee42bff1c102c6e89b8 ) The actual value is fine, but I get those parenthesis, which show up in my string. How can I get rid of them?

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  • Troubles moving a UIView.

    - by Joshua
    I have been trying to move a UIView by following a users touch. I have almost got it to work except for one thing, the UIView keeps flicking between two places. Here's the code I have been using: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchDown"); UITouch *touch = [touches anyObject]; firstTouch = [touch locationInView:self.view]; lastTouch = [touch locationInView:self.view]; [self.view setNeedsDisplay]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { InSightViewController *contentView = [[InSightViewController alloc] initWithNibName:@"SubView" bundle:[NSBundle mainBundle]]; [contentView loadView]; UITouch *touch = [touches anyObject]; currentTouch = [touch locationInView:self.view]; if (CGRectContainsPoint(contentView.view.bounds, firstTouch)) { NSLog(@"touch in subView/contentView"); sub.frame = CGRectMake(currentTouch.x - 50.0, currentTouch.y, 130.0, 21.0); } NSLog(@"touch moved"); lastTouch = currentTouch; [self.view setNeedsDisplay]; } And here's what's been happening: http://cl.ly/Sjx

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  • Strange behavior: save video recorded within app?

    - by Josue Espinosa
    I allow the user to record a video within my app, then later play it again. When a user records a video, I save the URL of the video, then play the video later from the saved URL. I save the video both in the Photos app and in my app. If I delete the video within the photos app, it still plays. After about 7 days, the video gets deleted. I think I am saving in my tmp directory, but i'm not sure. Here is what I am doing: -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType]; [self dismissViewControllerAnimated:YES completion:nil]; // Handle a movie capture if (CFStringCompare ((__bridge_retained CFStringRef) mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo) { NSString *moviePath = [NSString stringWithFormat:@"%@",[[info objectForKey:UIImagePickerControllerMediaURL] path]]; NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; NSData *videoData = [NSData dataWithContentsOfURL:videoURL]; _justRecordedVideoURL = [NSString stringWithFormat:@"%@",videoURL]; AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; _managedObjectContext = [appDelegate managedObjectContext]; Video *video = [NSEntityDescription insertNewObjectForEntityForName:@"Video" inManagedObjectContext:_managedObjectContext]; [video setVideoData:videoData]; [video setVideoURL:[NSString stringWithFormat:@"%@",videoURL]]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; dateFormatter.dateStyle = NSDateFormatterLongStyle; [dateFormatter setDateStyle:NSDateFormatterLongStyle]; NSDate *date = [dateFormatter dateFromString:[dateFormatter stringFromDate:[NSDate date]]]; NSString *dateAdded = [dateFormatter stringFromDate:date]; [video setDate_recorded:dateAdded]; if(_currentAthlete != nil){ [video setWhosVideo:_currentAthlete]; } NSError *error = nil; if(![_managedObjectContext save:&error]){ //handle dat error } NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *tempPath = [documentsDirectory stringByAppendingFormat:@"/vid1.mp4"]; BOOL success = [videoData writeToFile:tempPath atomically:NO]; if(success == FALSE){ NSLog(@"Video was not successfully saved."); } if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath)) { UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self, @selector(video:didFinishSavingWithError:contextInfo:), nil); } } } Am I saving it incorrectly? When I go to play the video, it works fine, after a couple days the video will play without audio, then eventually it will be gone. Any ideas why?

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  • 'EXC_BAD_ACCESS' When trying to access a variable?

    - by Nick Brooks
    I get an 'EXC_BAD_ACCESS' error when trying to access variable in a function other than the one it was set in: NSLog(@"Commening search (%@)",sessionID); // This causes it The variable is set in the 'awakeFromNib' function: //Retrieve Session-ID sessionID = [self getSessionID]; The variable itself is defined in the header: NSString *sessionID;

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  • displaying mac address in right format

    - by califguy
    Hi, I am obtaining the mac(hw) address of an interface using CWNetwork. Now OS X gives me this mac address in the xx:xx:xx:xx:xx:xx format. But if the first digit is 0, OS X will output the address as 4:aa:dd:ee:34:40, instead of 04:aa:dd:ee:34:40. Now I am trying to take this string 4:aa:dd:ee:34:40 and convert it to 04:aa:dd:ee:34:40 before displaying it. Any ideas ? APpreciate the help.

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  • Finding user location before map loads

    - by 4thSpace
    I'm trying to find the user's location using: CLLocationCoordinate2D _location; CLLocation *userLoc = nil; if(appDelegate.clLocationManager.locationServicesEnabled){ userLoc = mapView.userLocation.location; _location = userLoc.coordinate; } The problem is that I haven't yet initialized the map so the above doesn't work. Is there a way to get the user's location without using mapkit? Or should I be using a different technique?

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  • Replace an Array with an Array

    - by Dane Man
    I have and NSMutableArray and I want to replace it with another, but if I try to do it like this... firstArray = secondArray; ...then it seems to erase the entire firstArray and I get this error message.. Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSCFArray objectAtIndex:]: index (0) beyond bounds (0)' ...and the bounds should be (6) not (0). Is there a correct way to replace the array? PS: I already checked the secondArray and it functions fine.

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  • loading table view on click of button

    - by srikanth
    hi all, i have created an iPhone application with a view based .. the problem is i want to load a table view on click of button how can i do it? i tried.. initWithNibName:@"xibfile" bundle:[NSBundle mainBundle]... but table view is not loading wat to do?

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  • Should I always release self for failed init methods?

    - by leo
    Should I always release self when there is a failure inside init, or should I only do so if I have initialized instance variables first? To put it another way, is this pattern valid? Is there a time when I shouldn't release self inside an init method, or should I assume that if the control flow enters init, self has at least a retain count of 1? - (id)init { if ((self = [super init]) == nil) { [self release]; return nil; } //do some init stuff if (somethingFailed) { [self release]; return nil; } return self; }

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  • Why does UIActionSheet cancel crahes my App?

    - by Tim Büthe
    I try to use the UIActionSheet within my iPhone App but have the following problem. When I tap the cancel button "I don't", the app crashes. When I remove the NSLog statement from the actionSheet:clickedButtonAtIndex: it does not. The "Yes, do it" button works just fine and I see the log statement in the console. What's wrong? - (void) doItWithConfirm { UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"do you really wanna do it?" delegate:self cancelButtonTitle:@"I don't" destructiveButtonTitle: nil otherButtonTitles:@"Yes, do it", nil]; [actionSheet showInView:self.view]; [actionSheet release]; } - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex { NSLog(@"buttonIndex: %@", buttonIndex); }

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  • Problems with UITableView when loading the view into the main window

    - by GuidoMB
    I've created a sub class of UITableViewController named LoginViewController with the XIB file using XCode. Then I opened the XIB file with IB and set the table's style to grouped. Finally I wrote the following code: - (void)applicationDidFinishLaunching:(UIApplication *)application { LoginViewController *loginViewController = [[LoginViewController alloc] initWithNibName:@"LoginViewController" bundle:[NSBundle mainBundle]]; [window addSubview: loginViewController.view]; window.backgroundColor = [UIColor blueColor]; [window makeKeyAndVisible]; [window layoutSubviews]; } I set the window's background color to blue for you to see what the problem is. I put a link to the screenshot If I don't use the table style grouped the problem does not occur

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  • Find out number of fraction digits in currency in iOS

    - by thejaz
    I use NSNumberFormatter to format currencies in a localized way, and it works fine. But I want to override this and give the user the option to override the number of digits after the decimal separator. How can I find out the number of digits the NSNumberFormatter will use for a certain currency? I have looked in the NSLocale object, but none of the keys tell me this. NSString * const NSLocaleIdentifier; NSString * const NSLocaleLanguageCode; NSString * const NSLocaleCountryCode; NSString * const NSLocaleScriptCode; NSString * const NSLocaleVariantCode; NSString * const NSLocaleExemplarCharacterSet; NSString * const NSLocaleCalendar; NSString * const NSLocaleCollationIdentifier; NSString * const NSLocaleUsesMetricSystem; NSString * const NSLocaleMeasurementSystem; NSString * const NSLocaleDecimalSeparator; NSString * const NSLocaleGroupingSeparator; NSString * const NSLocaleCurrencySymbol; NSString * const NSLocaleCurrencyCode; NSString * const NSLocaleCollatorIdentifier; NSString * const NSLocaleQuotationBeginDelimiterKey; NSString * const NSLocaleQuotationEndDelimiterKey; NSString * const NSLocaleAlternateQuotationBeginDelimiterKey; NSString * const NSLocaleAlternateQuotationEndDelimiterKey; How can I find out the correct number of decimals for a currency like the NSNumberFormatter seems to know?

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  • UISegmentedControl - how to toggle between 2 UITableViews

    - by embedded
    I have a tab bar based application. What is the best way to toggle between 2 different UITableView views? Should I use a wrapper view and add those 2 views to it and depending on which segment was chosen I will show the correct view? Using only one tableView will not work because the layout is different between those 2 tableviews. Thanks

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  • Handling RSS Tags with NSXMLParser for iPhone

    - by MartinW
    I've found the following code for parsing through RSS but it does not seem to allow for nested elements: - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{ NSLog(@"ended element: %@", elementName); if ([elementName isEqualToString:@"item"]) { // save values to an item, then store that item into the array... [item setObject:currentTitle forKey:@"title"]; [item setObject:currentLink forKey:@"link"]; [item setObject:currentSummary forKey:@"summary"]; [item setObject:currentDate forKey:@"date"]; [item setObject:currentImage forKey:@"media:thumbnail"]; The RSS to used is: <item><title>Knife robberies and burglaries up</title> <description>The number of robberies carried out at knife-point has increased sharply and burglaries are also up, latest crime figures indicate</description> <link>http://news.bbc.co.uk/go/rss/-/1/hi/uk/7844455.stm</link> <guid isPermaLink="false">http://news.bbc.co.uk/1/hi/uk/7844455.stm</guid> <pubDate>Thu, 22 Jan 2009 13:02:03 GMT</pubDate><category>UK</category> <media:thumbnail width="66" height="49" url="http://newsimg.bbc.co.uk/media/images/45400000/jpg/_45400861_policegeneric_pa.jpg"/> </item> I need to extract the "url" element from the "media" tag. Thanks Martin

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  • method returning wrong variable

    - by cocoanewbie
    This class I'm working with has three instance variables I'm interested in, NSmutablearrays xArray yArray and zArray, there are also other NSmutablearrays, a, bArray and c. I just added accessors - (NSMutableArray *) xArray { return xArray; } ditto for y and z. However, it's returning yArray, zArray and bArray for some reason. Why is that happening? Okay, I just changed the names of the methods to GetXArray and everything seems to be returning the right variables. Now I'm really confused. How the heck did this happen and how do I prevent this from happening in the future?

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  • Locating the UIView that UITableView scrolls over

    - by Coocoo4Cocoa
    Hi all, I'm working on trying to obtain the UIView that UITableView scrolls over, if scrolling is enabled. Typically, the background is white, and if you push the UITableView out of its bounds, you'll see a background. I'm trying to set this background to a UIColor of blackColor. I can't seem to find the appropriate one to tag. I've tried the following code in my UIViewController: - (void)loadView { [super loadView]; UITableView *aTableView = [[[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain] autorelease]; [aTableView setScrollEnabled:YES]; [self.view setBackgroundColor:[UIColor blackColor]]; [self.view addSubview:aTableView]; self.tableView = aTableView; } The color still stays white. Seems I'm hitting the wrong UIView. Any idea? Thanks.

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  • How can I delete video stored in the photo library ?

    - by srikanth rongali
    I have saved video in to the photo library. -(void)exportVideo:(id)sender { NSString *path = [DOCUMENTS_FOLDER stringByAppendingString:@"/air.mp4"]; NSLog(@"Path:%@", path); NSLog(@"Export Button CLicked"); UISaveVideoAtPathToSavedPhotosAlbum(path, self, @selector(video:didFinishSavingWithError: contextInfo:), nil); } - (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { NSLog(@"Finished saving video with error: %@", error); } Now I need to delete the video i have stored programmatically. How can I delete the video ? Are there any functions for it? Thank You.

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  • One label, two different fonts?

    - by 4thSpace
    I need to format text in a label like this: username: some text from this user. This will create additional lines of text that will go on and on and on. Where "username" is bold. This will go into a UILabel, which is in a custom table cell. Is there a way to get this type of layout?

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  • How can I send email from my application ?

    - by srikanth rongali
    I want to attach a video and send email from my application. I downloaded apples example code MailComposer. I compiled it. I did not get any errors or warnings. I sent the mail to my mail id. But, I could not see any mail in my inbox. I am working on simulator. I did not set any senders email id in simulator. How can I know whether the code is working or not ? Thank You.

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