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  • Camera Filters in ios7

    - by Muhannad Dasoqie
    How I can use the camera filters that already exist in iOS7? If i used this code: UIImagePickerController *picker= [[UIImagePickerController alloc]init]; picker.delegate = self; picker.allowsEditing = YES; picker.sourceType = UIImagePickerControllerSourceTypeCamera; [self presentModalViewController:picker animated:YES]; the camera will open, and I can capture a photo but without using the filters. my question is: can I use the exist filters in camera view in iOS7?

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  • NSNumberFormatter weirdness with NSNumberFormatterPercentStyle

    - by rein
    Hi, I need to parse some text in a UITextField and turn it into a percentage. Ideally, I'd like the user to either type something like 12 or 12% into the text field and have that be parsed into a number as a percentage. Here's what's weird. The number formatter seems to not like 12 and seems to divide 12% by 10000 instead of 100: NSNumberFormatter *formatter = [[[NSNumberFormatter alloc] init] autorelease]; [formatter setNumberStyle:NSNumberFormatterPercentStyle]; NSNumber *n1 = [formatter numberFromString:@"12"]; NSNumber *n2 = [formatter numberFromString:@"12%"]; NSLog(@"n1 = %@", n1); // n1 = (null) NSLog(@"n2 = %@", n2); // n2 = 0.0012 How do I get the formatter to return 0.12 as expected? EDIT: it seems to only happen if the formatter fails first. If the formatter does not fail it returns 0.12 as expected. Strange.

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  • Unselected UIPickerView value

    - by morticae
    According to the documentation, if a UIPickerView has no selected value, the expected return from selectedRowInComponent: should be: "A zero-indexed number identifying the selected row, or -1 if no row is selected." However, if I check the value the very line after initializing one, its value is 0. Even if I then manually set it to -1, it still returns 0. I would like to be able to detect whether the user has chosen a value yet or not, without recording it in a local variable. Is this possible? example: UIPickerView *picker = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0, 46.0, 320.0, 216.0)]; [picker selectRow:-1 inComponent:0 animated:NO]; NSLog(@"SELECTED %d", [picker selectedRowInComponent:0]); expected output: SELECTED -1 actual output: SELECTED 0

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  • NSXMLParser, Issue with ASCII Character Set

    - by Ansari
    Hi all <Feeds> <channel> <ctitle>YouTube</ctitle> <cdescription>YouTube - Recently added videos</cdescription> <items> <recentlyAdded> <item> <serverItemId>1</serverItemId> <title>Fan Video CARS</title> <author>mikar1</author> <guid isPermaLink='false'></guid> <link>http://www.youtube.com/watch?v=y7ssHOBFvGk&amp;feature=youtube_gdata</link> <pubDate></pubDate> <description> <descriptionTitle>Fan Video CARS</descriptionTitle> <descriptionText>THE REALSONG OF THIS VIDEOS IS REAL GONE, BUT FOR COPYRIGHTS RASONS.....YOUTUBE FORCE ME A CHANGE THE SONG :s Un pequeño video, de la pelicula Cars!</descriptionText> <added></added> <airDate></airDate> <duration></duration> <Views></Views> <ratings>4.340909</ratings> <From></From> </description> <thumbnail> <height>100</height> <width>100</width> <url>http://i.ytimg.com/vi/y7ssHOBFvGk/2.jpg</url> </thumbnail> </item> </recentlyAdded> </items> </channel> I am using NSXMLParser, and when it reaches the it blows up. It breaks the text to pieces "THE REALSONG OF THIS VIDEOS IS REAL GONE, BUT FOR COPYRIGHTS RASONS.....YOUTUBE FORCE ME A CHANGE THE SONG :s Un peque" And next should be "ño" but it just quit the parsing there and further tags are being handled. :( It always does with the ISO 8859 1 Character cames in ) Any quick idea ??? Thanks in Advance ..........

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  • Get a image from a uiview

    - by Monobono
    Hi I want to perform a shrink animation on a UITableVIew. I experimented a bit and found out that the animation runs much faster when I shrink a UIImageView with an image of the current state of the tableview instead of shrinking the table view itself. I grabbed the image in a method in my main viewcontroller prior to the animation: UIGraphicsBeginImageContext(mainTableView.bounds.size); [resizeContainer.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); Works like a charm, at least almost. On very rare occasions I get weird graphic glitches, where the UIImage starts to overlap a toolbar that lies underneath it. I just want to make sure that I am getting the image in the right way. I am laking the necessary understand of GraphicContexts to be sure about it. To cut a long story short, is my code correct? Thx

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  • Pop Over Control on iPad Problem !

    - by Momeks
    Hi , i try to load a view via UIPopover but my app crash after tap the popover button , i tried to solve it but i don't understand ! here is my code : - (IBAction)calendarPopUp:(id)sender { PopViewController *cal = [[PopViewController alloc]init]; //The compiler tells me the problem comes from this line : UIPopoverController *popOver = [[UIPopoverController alloc] initWithContentViewController:cal]; [popOver setDelegate:self]; [popOver presentPopoverFromRect:CGRectMake(113, 64, 226, 129) inView:self permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES]; [popOver setPopoverContentSize:CGSizeMake(226, 129)]; }

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  • UILabel applying CGAffineTransformMakeRotation causing mysterious crash

    - by quantumpotato
    In -(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil parentController:(GameViewController *)myGameController{ Have a series of transforming labels like so: deg90 = 1.570796326794897; //....transforms background.center = CGPointMake(160,230); background.transform = CGAffineTransformMakeRotation(deg90); BetLabel.text = @"test"; BetLabel.transform = CGAffineTransformMakeRotation(deg90); That last line is crashing me with: 2010-04-13 21:04:47.858 Game[1204:207] * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (1) beyond bounds (1)' 2010-04-13 21:04:47.893 Game[1204:207] Stack: ( 864992541, 859229716, (lots of numbers) But if I comment it out, I get the text changing fine. Uh oh, just did a test.. turns out the other transforms were on UIImageViews. Apparently rotating a label in this xib is causing the crash. But in another file the transforms are working fine: newprofileentry.transform = CGAffineTransformMakeRotation(1.570796326794897); playerb0.transform = CGAffineTransformMakeRotation(1.570796326794897); playerb1.transform = CGAffineTransformMakeRotation(1.570796326794897); Tried substituting deg90 with the full float value, still the same crash. Tried cleaning cache, restarting IB and Xcode, cleaning all targets. Program has been running fine until I just added these labels. Tried deleting the label, readding and reconnecting the Outlet, too. Thanks for reading, hope someone has an idea about this. Cheers!

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  • indentationLevelForRowAtIndexPath not indenting custom cell

    - by Xetius
    I have overridden the tableView:indentationLevelForRowAtIndexPath method in my UITableViewController derived class as follows: - (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath { NSDictionary* item = [self.projects objectAtIndex:indexPath.row]; int indentationLevel = [[item objectForKey:@"indent"] intValue]; DLog (@"Indentation Level for Row %d : %d", indexPath.row, indentationLevel); return indentationLevel; } I initially thought that this was not being called but that was operator error (err, mine) and I hadn't defined the symbol DEBUG=1. However, it is being called (duh me!) and this is the log output: -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 0 : 1 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 1 : 1 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 2 : 2 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 3 : 2 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 4 : 2 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 5 : 1 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 6 : 2 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 7 : 2 -[RootViewController tableView:indentationLevelForRowAtIndexPath:] [Line 129] Indentation Level for Row 8 : 1 But, this is not affecting the layout of the cells. No indentation. This is my itemCellForRowAtIndexPath implementation, if that makes any difference: -(UITableViewCell*)tableView:(UITableView *)tableView itemCellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString* cellIdentifier = @"projectItemCell"; ProjectItemTableViewCell* cell = (ProjectItemTableViewCell*)[tableView dequeueReusableCellWithIdentifier:cellIdentifier]; if (cell == nil) { NSArray* nib = [[NSBundle mainBundle] loadNibNamed:@"ProjectItemTableViewCell" owner:self options:nil]; for (id oneObject in nib) { if ([oneObject isKindOfClass:[ProjectItemTableViewCell class]]) { cell = (ProjectItemTableViewCell*)oneObject; } } } NSDictionary* item = [self.projects objectAtIndex:indexPath.row]; cell.projectDescLabel.text = [item objectForKey:@"name"]; cell.itemCountlabel.text = [NSString stringWithFormat:@"%d", [[item objectForKey:@"cache_count"] intValue]]; cell.itemCountlabel.backgroundColor = [UIColor colorForHex:[item objectForKey:@"color"]]; cell.indentationWidth = 20; return cell; } How do I indent a custom UITableViewCell which I have defined in Interface Builder? If I change the itemCellForRowAtIndexPath to use a default UITableViewCell with the code below, then it indents fine. static NSString* cellIdentifier = @"projectItemCell"; UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier] autorelease]; } NSDictionary* item = [self.projects objectAtIndex:indexPath.row]; cell.textLabel.text = [item objectForKey:@"name"]; cell.indentationWidth = 40; return cell;

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  • ASIHTTPRequest - PostData but GET Method

    - by RyanJM
    Is there a way to see what request ASIHTTPRequest is making? My code is: ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request appendPostData:[data dataUsingEncoding:NSUTF8StringEncoding]]; [request setRequestMethod:@"GET"]; [request addRequestHeader:@"Content-Type" value:@"application/json"]; And I'm trying to duplicate: curl -X GET "http://www.myurl.com/_api/my/url" -H "Content-Type: application/json" -d {"api_key":"my_special_api_key_123"} The curl works fine, but I can't get the ASIHTTPRequest to work properly. Any ideas?

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  • How to serialize object containing NSData?

    - by AO
    I'm trying to serialize an object containing a number of data fields...where one of the fields is of datatype NSData which won't serialize. I've followed instructions at http://www.isolated.se but my code (see below) results in the error "[NSConcreteData data]: unrecognized selector sent to instance...". How do I serialize my object? Header file: @interface Donkey : NSObject<NSCoding> { NSString* s; NSData* d; } @property (nonatomic, retain) NSString* s; @property (nonatomic, retain) NSData* d; - (NSData*) serialize; @end Implementation file: @implementation Donkey @synthesize s, d; static NSString* const KEY_S = @"string"; static NSString* const KEY_D = @"data"; - (void) encodeWithCoder:(NSCoder*)coder { [coder encodeObject:self.s forKey:KEY_S]; [coder encodeObject:self.d forKey:KEY_D]; } - (id) initWithCoder:(NSCoder*)coder; { if(self = [super init]) { self.s = [coder decodeObjectForKey:KEY_STRING]; self.d [coder decodeObjectForKey:KEY_DATA]; } return self; } - (NSData*) serialize { return [NSKeyedArchiver archivedDataWithRootObject:self]; } @end

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  • New CATransform3DMakeRotation deletes old transformation?!

    - by david
    I added a CATransform3DMakeRotation to a layer. When I add another one it deletes the old one? The first one: [UIView beginAnimations:@"rotaty" context:nil]; [UIView setAnimationDuration:0.5]; [UIView setAnimationDelegate:self]; CGAffineTransform transform = CGAffineTransformMakeRotation(-3.14); kuvert.transform = CGAffineTransformRotate(transform, DegreesToRadians(134)); kuvert.center = CGPointMake(kuvert.center.x-70, kuvert.center.y+100); [UIView commitAnimations]; and the second one: CABasicAnimation *topAnim = [CABasicAnimation animationWithKeyPath:@"transform"]; topAnim.duration=1; topAnim.repeatCount=0; topAnim.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(0.0, 0, 0, 0)]; float f = DegreesToRadians(180); // -M_PI/1; topAnim.toValue=[NSValue valueWithCATransform3D:CATransform3DMakeRotation(f, 0,1, 0)]; topAnim.delegate = self; topAnim.removedOnCompletion = NO; topAnim.fillMode = kCAFillModeBoth; [topAnim setValue:@"flippy" forKey:@"AnimationName"]; [[KuvertLasche layer] addAnimation:topAnim forKey:@"flippy"]; The second one resets the view and applies itself after that. How do I fix this??

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  • How to disable multitouch?

    - by cannyboy
    My app has several buttons which trigger different events. The user should NOT be able to hold down several buttons. Anyhow, holding down several buttons crashes the app. And so, I'm trying to disable multi-touch in my app. I've unchecked 'Multiple Touch' in all the xib files, and as far as I can work out, the properties 'multipleTouchEnabled' and 'exclusiveTouch' control whether the view uses multitouch. So in my applicationDidFinishLaunching I've put this: self.mainViewController.view.multipleTouchEnabled=NO; self.mainViewController.view.exclusiveTouch =YES; And in each of my view controllers I've put this in the viewDidLoad self.view.multipleTouchEnabled=NO; self.view.exclusiveTouch=YES; However, it still accepts multiple touches. I could do something like disable other buttons after getting a touch down event, but this would be an ugly hack. Surely there is a way to properly disable multi-touch?

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  • Why do i get exc bad access in cases when object is not nil?

    - by DixieFlatline
    I have an app that receives remote notifications. My view controller that is shown after push has a tableview. App crashes very randomly (1 in 20 tries) at line setting frame: if (!myTableView) { NSLog(@"self.myTableView is nil"); } myTableView.frame=CGRectMake(0, 70, 320, 376); This only happens when i open the app, then open some other apps and then receive the push notification. I guess it has something to do with memory. I use ARC (ios 5). The strange thing is that nslog is not displayed, so tableview is not nil. Crash log: Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x522d580c Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x352b1f7e objc_msgSend + 22 1 Foundation 0x37dc174c NSKVOPendingNotificationCreate + 216 2 Foundation 0x37dc1652 NSKeyValuePushPendingNotificationPerThread + 62 3 Foundation 0x37db3744 NSKeyValueWillChange + 408 4 Foundation 0x37d8a848 -[NSObject(NSKeyValueObserverNotification) willChangeValueForKey:] + 176 5 Foundation 0x37e0ca14 _NSSetPointValueAndNotify + 76 6 UIKit 0x312af25a -[UIScrollView(Static) _adjustContentOffsetIfNecessary] + 1890 7 UIKit 0x312cca54 -[UIScrollView setFrame:] + 548 8 UIKit 0x312cc802 -[UITableView setFrame:] + 182 9 POViO 0x000913cc -[FeedVC viewWillAppear:] (FeedVC.m:303) Dealloc is not called because it is not logged: - (void)dealloc { NSLog(@"dealloc"); }

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  • Comparing NSDates

    - by Garry
    Hi, I have an NSDate object called 'dueDate'. I'm trying to work out how to display if the due date was yesterday or is tomorrow. How would I go about this?

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  • Zoom on userLocation

    - by Marco
    Hello, how can I zoom the map on my userLocation automatically in my app? I have the following code to zomm in the map but i must zoom on the userLocation and the following code zooms always to africa? MKCoordinateRegion zoomIn = mapView.region; zoomIn.span.latitudeDelta *= 0.2; zoomIn.span.longitudeDelta *= 0.2; zoomIn.center.latitude = mapView.userLocation.location.coordinate.latitude; zoomIn.center.longitude = mapView.userLocation.location.coordinate.longitude; [mapView setRegion:zoomIn animated:YES];

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  • UISegmentedControl register taps on selected segment

    - by Jongsma
    Hi, I have a segmented control where the user can select how to order a list. Works fine. However, I would like that when an already selected segment is tapped, the order gets inverted. I have all the code in place, but I don't know how to register the taps on those segments. It seems the only control event you can use is UIControlEventValueChanged, but that isn't working (since the selected segment isn't actually changing). Is there a solution for this? And if so, what is it? Thanks in advance!

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  • Ask for an example code for parsing xml and get attributes by using GData API

    - by ben
    When i use GData API in my app for parsing xml,how could i get attributes and it's value? Wanted a piece of example code.Thanks a lot. xml: <playurls><url islive="0" type="3" bit_stream="1">http://vods.netitv.com//dy2/2010/02/08/cf584b76-3579-4b75-a0c8-f7a473d79f8c.mp4 </url><url islive="0" type="3" bit_stream="2">http://vods.netitv.com//dy/2010/02/08/965bbc65-8ec0-4c50-98ae-c69a831926cc.mp4 </url><url islive="0" type="2" bit_stream="1">http://vods.netitv.com//dy2/2010/02/08/cf584b76-3579-4b75-a0c8-f7a473d79f8c.mp4 </url><url islive="0" type="2" bit_stream="2">http://vods.netitv.com//dy/2010/02/08/965bbc65-8ec0-4c50-98ae-c69a831926cc.mp4 </url></playurls>

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  • How easy is it to hack a plist file in an app store app?

    - by user249488
    Don't worry, I'm not trying to hack someone else's app, if that's what you're thinking =). I want to have 2 versions of my app, a free version and a deluxe version. My plan was to use an in-app purchase to enable the deluxe version by setting a boolean value in the plist file. My question is: is this secure or is it easily circumvented? And if it is not secure, can someone suggest a simple alternative? I don't want to download additional content, I would rather keep all of the functionality within the app and enable it somehow.

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  • add button to navigationbar programatically

    - by mac
    Hi i need to set the button on right side, in navigation bar, programatically , so that if i press the button i will perform some actions, i have created the navigation bar,programatically by navBar=[[UINavigationBar alloc]initWithFrame:CGRectMake(0,0,320,44) ]; similarly i need to add the button , right side of this navigation bar,for that i used, 1) UIView* container = [[UIView alloc] init]; // create a button and add it to the container UIButton* button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 130, 44.01)]; [container addSubview:button]; [button release]; // add another button button = [[UIButton alloc] initWithFrame:CGRectMake(160, 0, 50, 44.01)]; [container addSubview:button]; [button release]; // now create a Bar button item UIBarButtonItem* item = [[UIBarButtonItem alloc] initWithCustomView:container]; // set the nav bar's right button item self.navigationItem.rightBarButtonItem = item; [item release]; 2) UIImage *im; im=[UIImage imageNamed:@"back.png"]; [button setImage:im forState:UIControlStateNormal]; [im release]; backButton = [[UIBarButtonItem alloc] initWithCustomView:button]; [backButton setImageInsets:UIEdgeInsetsMake(0, -10,5, 5)]; [self.navigationItem setRightBarButtonItem:backButton]; 3) UIBarButtonItem *refreshItem = [[UIBarButtonItem alloc] initWithTitle:@"button" style:UIBarButtonItemStylePlain target:self action:@selector(refreshLogsAction:)]; self.navigationItem.rightBarButtonItem = refreshItem; [refreshItem release]; i tried all these type of codings , no use, these codes are not displaying the button at rigth side,please help me. thanks in advance,

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  • Subclassing UIScrollView for drawing w/o views

    - by David Dunham
    I'm contemplating subclassing UIScrollView (the way UITextView does) to draw a fairly large amount of text (formatted in ways that NSTextView can't). So far the view won't actually scroll. I'm setting contentSize, and when I drag, I see the scroll indicator. But nothing changes (and I don't get a drawRect: message). An alternate approach is to use a child view, and I've done this. The view can be over 5000 pixels high, however, and I'm a bit concerned about performance on an actual device. (The other approach, be like UITableView, would be a huge pain -- I'm "porting" Mac Cocoa code, and a collection of views would be a huge architecture change.) I've done some searching, but haven't found anyone who is using UIScrollView to do the drawing. Has anyone done this and know of any pitfalls?

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  • convert string to date and write back into NSMutableArray

    - by padatronic
    I have a NSMutableArray I get by loading a plist into it. The date field comes in as a string and i want to change it into a nsdate. I can change an nsstring into an nsdate. My array is an array of objects like the one below; { Date = "1/1/2009" Description = "Have you ever looked at a badger and thought i wonder how far you could fire that out of a cannon? Well this talk is for you"; File = "http://www.badgerCannon.org.uk/mp3/070310pm.mp3"; Series = "The Badger planet"; Speaker = "Will Ferell"; Title = "Is it a bird, is it a plane? no its a badger"; } I loop through and pull out the date and convert it from a NSString to a NSDate. I try writing it back in using the code; [[self.MediaDataArray objectAtIndex:i] replaceObjectAtIndex:0 withObject:Date]; but it errors and i am pretty sure it is because i am not putting it back into the array in the same format, ie just as a date not as date = "date". But lets face it i don't really know! Am i barking up the wrong tree? Please help, i have got the coding equivalent of writters block, or alternatively am just being really stupid! thanks in advance

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  • Best way to store date/time into core data

    - by Dave
    Hi, For each course I am storing the day of the week the class the user has...and the start and end time and room no. What would be the best approach in terms of data type, Like for storing time?? so that when I pull it out I can display it e.g 1:00 PM. Thanks!

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  • Saving an NSMutableArray of custom Objects

    - by aahrens
    I have a custom class that is used as a wrapper to an NSMutableArray @interface AllCourses : NSObject { NSMutableArray *arrClasses; } The array above stores Objects of another custom class. @interface Course : NSObject { NSString *className; NSString *classGrade; NSInteger creditHours; } I use the method below to add Course objects to my AllCourses //Adds a new Course to the total Courses -(void) addClass:(Course *)aCourse{ [arrClasses addObject:aCourse]; } What's going to be the best way to save the arrClasses MutableArray in AllCourses so that when my app loads it can keep the saved data the user already entered and populate it?

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