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  • viewForHeaderInSection - create header that would display properly in all cases

    - by sha
    I have an interesting problem/question and i'm not sure if it is even doable. So I have a custom header view for regular UITableView. But it's transparent and it doesn't fill fill table width. So it displayed properly when table is scrolled and this header view is displayed above cell content (sticked to the top). But when same header is displayed between two sections down - it looks ugly, because it's transparent and it's either displayed above black rectangle or above table background. I was wondering is there way to customize header view for when it's stick to the top and when it's not. Or... may be it's possible to specify what needs to be displayed underneath header view when it's between sections. Something like sectionSeparatorView?

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  • UISearchBar disable table view on activation

    - by Sankel
    Hi there. I have a UISearchBar in the table cell. All done in code (not in IB). When the search bar is activated I want to disable the table view are between the search bar and keyboard, so there is no way to touch and navigate out of this view. Cannot really get it working. Help please.

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  • sending image in a faceless email

    - by anurag
    I am trying to send a faceless(without showing the interface)email by using the code below: I also want to attach an image to this email can anybody suggest is it possible??? (void) sendEmailTo:(NSString *)toStr withSubject:(NSString *)subjectStr withBody:(NSString *)bodyStr { NSString *emailString=[[NSString alloc] initWithFormat:@"mailto:?to=%@&subject=%@&body=%@", [toStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding], [subjectStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding], [bodyStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:emailString]]; [emailString release]; }

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  • Converting byte array to image in xcode?

    - by arizah
    I am getting a byte array(I reckon) in NSMutableArray's object.The NSMutableArray i get is from Xml parsing from a service URL..Now I need to convert that byte array to UIImage ..Gone through google and found to convert to NSData and then UIImage but couldn't understand how..? How can I do it ? My array looks like this : ( { Name = "John"; Image = "/9j/4AAQSkZJRgABAQAAAQABAAD//gA7Q1JFQVRPUjogZ2QtanBlZyB2MS4wICh1c2luZyBJS kcgSlBFRyB2NjIpLCBxdWFsaXR5ID0gODAK/9sAQwAGBAUGBQQGBgUGBwcGCAoQCgoJCQoUDg8MEBcUGBgXF BYWGh0lHxobIxwWFiAsICMmJykqKRkfLTAtKDAlKCko/9sAQwEHBwcKCAoTCgoTKBoWGigoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgo/8AAEQgEKwZAAwEiAAIRAQMRAf/........ //big byte array } ) First of all I need to clear whether it is a byte array ?How can I extract image from this ?

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  • Do we need to release an UIImage object even not allocated memory?

    - by Madan Mohan
    Hi Guys, I added an image to button UIImage* deleteImage = [UIImage imageNamed:@"Delete.png"]; CGRect imageFrame=CGRectMake(-4,-4, 310, 55); [btn setFrame:imageFrame]; btn.backgroundColor=[UIColor clearColor]; [btn setBackgroundImage:deleteImage forState:UIControlStateNormal]; [btn setTitle:@"Delete" forState:UIControlStateNormal]; [btn addTarget:self action:@selector(editDeleteAction) forControlEvents:UIControlEventTouchUpInside]; [elementView addSubview:btn]; [deleteImage release];// do we need to release the image here If I release here its working fine but in object allocations no.of image count is increasing.

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  • NSConcreteData leaked object in objective c ?

    - by Madan Mohan
    Hi Guys, I am getting the NSConcreteData leaked object while testing the leaks in the instruments.It showing in the parser, - (void)parseXMLFileAtURL:(NSURL *)URL { [urlList release]; urlList = [[NSMutableArray alloc] init]; myParser = [[NSXMLParser alloc] initWithContentsOfURL:URL] ;// it showing this line as leaking [myParser setDelegate:self]; [myParser setShouldProcessNamespaces:NO]; [myParser setShouldReportNamespacePrefixes:NO]; [myParser setShouldResolveExternalEntities:NO]; [myParser parse]; [myParser release]; }

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  • problem in presentmodelviewcontroller?

    - by Bala
    i am using tabbarcontroller. In tabbar having one view.In that tab i call one function using Nstimer it open another viewcontroller. First * sVC = [[First alloc] initWithNibName:@"First" bundle:[NSBundle mainBundle]]; [self presentModalViewController:sVC animated:YES]; Opened viewcontrller having one button.when user click that button i want to close the view and call Nstimer. [self dismissModalViewControllerAnimated:NO] The problem is first the view opened and closed but second time view could not open.

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  • Do properties need to be deallocated?

    - by Sheehan Alam
    I subclassed NSObject: #import <Foundation/Foundation.h> @interface STObject : NSObject { NSString *message_type; NSString *twitter_in_reply_to_screen_name; } @property(nonatomic, copy) NSString *message_type; @property(nonatomic, copy) NSString *twitter_in_reply_to_screen_name; @end My implementation looks like: #import "STObject.h" @implementation STObject @synthesize message_type, twitter_in_reply_to_screen_name; @end Do I need to create a dealloc method for my two properties where I release the strings?

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  • Objective-C: Cannot Change Value of Instance Variable Inside a Function

    - by user262325
    Hello everyone, I cannot change the value of an instance variable inside a function. I have defined a class: // info.h #import <Foundation/Foundation.h> @interface NSMyObject : NSObject { NSInteger i; } -(void) setI:(NSInteger)v; @end #import "info.h" @implementation NSMyObject -(void) setI:(NSInteger)v ; { i=v; } - (void)dealloc { [super dealloc]; } @end I call a function 'myFunction' with parameter temObj which is a NSMyObject instance. myFunction(temObj);//temObj is NSMyObject In the function, I can change the value of the instance variable of parameter obj. -(void)myFunction:(NSMyObject*) obj; { [obj setI:0]; } ... expecting this to change the content of temObj. But when I check the results of operation on obj in function myFunction the value of temObj.i has not changed. Welcome any comment Thanks

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  • How to perform DNS query on iOS

    - by yasirmturk
    i want to perform some DNS queries e.g. to get IP records against a specific domain name, i am looking for a preferred way or some useful snippet for this on iOS 3.2+ SDK. thanx in advance part from other snippets i found this code Boolean result; CFHostRef hostRef; NSArray *addresses; NSString *hostname = @"apple.com"; hostRef = CFHostCreateWithName(kCFAllocatorDefault, (CFStringRef)hostname); if (hostRef) { result = CFHostStartInfoResolution(hostRef, kCFHostAddresses, NULL); // pass an error instead of NULL here to find out why it failed if (result == TRUE) { addresses = (NSArray*)CFHostGetAddressing(hostRef, &result); } } if (result == TRUE) { [addresses enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) { NSString *strDNS = [NSString stringWithUTF8String:inet_ntoa(*((struct in_addr *)obj))]; NSLog(@"Resolved %d->%@", idx, strDNS); }]; } else { NSLog(@"Not resolved"); } but this is producing same IP for every host Resolved 0-220.120.64.1 any help??

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  • is there any way to terminate UIImagePickerViewController while taking video?

    - by wadelim
    Hello! It's the first time to ask a question! until now, I don't need to ask qestion about my problem because Here is the rellay good place to share and solve my programming error(problem?)! now, I'm having a big problem at UIImagePickerViewController Fisrt, while My app is enconding Video Image on pckerViewcontroller, If I push the home button to go background, My app is terminated T_T(EXC_BAD_ACCESS) I want to keep my app alive(living) or close safely pickerview controller to be back I'm going crazy if there is anyone to help me, I would really appreciated Thank you! // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *// // in Init Method [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(enterBackgound:) name:UIApplicationDidEnterBackgroundNotification object:nil]; // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *// UIImagePickerController *pickerController = [UIImagePickerController new]; i_pc = pickerController; // "i_pc" is member instance .... [self presentModalViewController:pickerController animated:YES]; [pickerController release]; // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *// while encoding some video in pckerview Contrller, Push homeButton! and return back then my app is killed // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *// // this is my code to try to solve above problem.. But It's not working -(void)enterBackground:(NSNotification *)notification{ [self dismissModalViewControllerAnimated:YES]; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *//

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  • Is there an autorelease pool in class methods?

    - by mystify
    I have an class method which generates an UIView, like this: + (UIImage*)imageWithFileName:(NSString*)imgFile { UIImage *img = nil; NSBundle *appBundle = [NSBundle mainBundle]; NSString *resourcePath = [appBundle pathForResource:imgFile ofType:nil]; if (resourcePath != nil) { NSURL *imageURL = [NSURL fileURLWithPath:resourcePath]; NSData *data = [[NSData alloc] initWithContentsOfURL:imageURL]; img = [UIImage imageWithData:data]; // should be autoreleased!! [data release]; } return img; } However, when I use this, the image data is NEVER freed. There is definitely a memory bug with this, although I didn't break any memory management rule I am aware of. My guess is that because this is a class method which gets called from instance methods, There is no active autorelease pool in place or it's one that only gets drained when I quit the app. Could that be right?

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  • iOS Development: Can I store an array of integers in a Core Data object without creating a new table to represent the array?

    - by BeachRunnerJoe
    Hello. I'm using Core Data and I'm trying to figure out the simplest way to store an array of integers in one of my Core Data entities. Currently, my entities contain various arrays of objects that are more complex than a single number, so it makes sense to represent those arrays as tables in my DB and attach them using relationships. If I want to store a simple array of integers, do I need to create a new table with a single column and attach it using a one-to-many relationship? Or is there a more simple way? Thanks in advance for your wisdom!

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  • Code formatting when using pointers

    - by HD-VRSCA
    Is there any reason why the asterisk is next to the object type in this code? I'm a little confused by the way I see this used. Some times it looks like this: NSString* stringBefore; and sometimes like this: NSString *stringBefore; Is there a difference? Or a right or wrong way to do this? Thanks

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  • Dynamic attached UILabel is not moving.

    - by coure06
    I have attached a UILabel to view. Now i want to move that label but its not working. here is my code UILabel *tick = (UILabel *)[self.view viewWithTag:tag]; CGRect frame = tick.frame; frame.origin.x = newVal; frame.origin.y = newVal; I can change text value of the UILabel tick but how can i move it here and there?

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  • How to get indexPath.row at textFieldDidEndEditing

    - by phx
    Hey all, i use some code for inline cell editing from Apples TaggedLocations Example and im now stuck. At the demo Code they save the changes at textFieldDidEndEditing, this works because they asume to edit only the first element in a table view. I have to edit every row at the table view, so my problem is how to get indexPath.row to update the correct object stored in a mutableArray. Or did i miss something? Thanks for your help!

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  • Navigation Bar color doesn't change back? iOS7

    - by TKP
    I have several tableviews with navigation controller. The navigation bar is white for all the views except the last one, which is red. I have [[[self navigationController] navigationBar] setTintColor:[UIColor redColor]; in the viewDidLoad of the last tableview and [[[self navigationController] navigationBar] setTintColor:[UIColor whiteColor]; in the viewDidLoad of other table views. It works fine until I get to the last view and the color of the navigation bar changes to red. When I go back to the previous views, all the previous views' navigation bar has changed to red. Where should I put those codes so the color will remain unchanged? Thanks,

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  • Need help with text animation within UITableViewCell

    - by gdiphone
    I'm trying to implement a simple text animation in a custom UITableViewCell without having to go into editing mode which automatically brings up the delete button on the right. What I'm trying to accomplish is that when the label is updated by a button within the UITableviewcell, the text in the label is updated but with some smooth animation like sliding to the right since the updated text is prepended to the string. Any sample code would be great. thanks

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