Search Results

Search found 15961 results on 639 pages for 'iphone plist'.

Page 403/639 | < Previous Page | 399 400 401 402 403 404 405 406 407 408 409 410  | Next Page >

• When to call release on NSURLConnection delegate?

  - by Kieran H

  Hi, When passing a delegate to the a NSUrlConnection object like so: [[NSURLConnection alloc] initWithRequest:request delegate:handler]; when should you call release on the delegate? Should it be in connectionDidFinishLoading? If so, I keep getting exec_bad_access. I'm seeing that my delegates are leaking through instruments. Thanks

  Read the article

• Adding Extra Title Attributes to MKAnnotation?

  - by fuzzygoat

  Currently I have a subClass of MKAnnotation and I was wondering if its possible to add extra tile attributes. Currently MKAnnotation adds Title Subtitle Is there a way I could add two more lines / NSStrings to allow 4 lines of text? Title SubTitle Location Date gary

  Read the article

• How to Pop Current View from Navigation Controller?

  - by theactiveactor

  Is there a way to pop the current view from the Navigation Controller? Ideally in viewDidLoad, I would like to perform some sanity checking and if it fails, popup an error dialog and automatically close the current view (remove from parent N.avigation Controller)

  Read the article

• How to efficiently save changes made in UI/main thread with Core Data?

  - by Jaanus

  So, there have been several posts here about importing and saving data from an external data source into Core Data. Apple documents a reasonable pattern for this: "import and save on background thread, merge saved objects to main thread." All fine and good. I have a related but different problem: the user is modifying data in the UI and main thread, and thus modifies state of some objects in the managed object context (MOC). I would like to save these changes from time to time. What is a good way to do that? Now, you could say that I could do the same: create a background thread with its own MOC and pass the changed objectID-s there. The catch-22 for me with this is that an object's ID changes when it is saved, and I cannot guarantee the order of things happening. I may end up passing a different objectID into the background thread for the same object, based on whether the object has been previously saved or not, and I don't know if Core Data can resolve this and see that different objectID-s are pointing to the same object and not create duplicates for me. (I could test this, but I'm lazywebbing with this question first.) One thought I had: I could always do MOC saves on a background thread, and queue them up with operationqueue, so that there is always only one save in progress. I would not create a new MOC, I would just use the same MOC as in main thread. Now, this is not thread safe and when someone modifies the MOC in main thread while it is being saved in background thread, the results will probably be catastrophic. But, minus the thread safety, you can see what kind of solution I'd wish for. To be clear, the problem I need to fix is that if I just do the save in main thread, it blocks the UI for an unacceptably long period of time, I want to move the save to background thread. So, questions: what about the reasoning of an object ID changing during saving, and Core Data being able to resolve them to the same object? Would this be the right way of addressing this problem? any other good ways of doing this?

  Read the article

• Getting Data From Webpages?

  - by fuzzygoat

  When looking to get data from a web page whats the recommended method if the page does not provide a structured data feed? Am I right in thinking that its just a case of doing an NSURLRequest and then hacking what you need out of the responseData(NSData*)? I am not too concerned about the implementation in Xcode, I am more curious about actually collecting the data, before I start coding a "hunt & peck" through a list of data. gary

  Read the article

• take images from a cell , into next view controller

  - by richard Stephenson

  hi guys , i asked this question yesterday but it doesnt seem to have asked properly so im trying again in my app im parsing in an xml file , in that file there is a path for an image to download an in my tableview controler i have this to download the image and display it in the cell NSURL *url = [NSURL URLWithString:aStory.picture]; NSData *data = [NSData dataWithContentsOfURL:url]; UIImage *img = [[UIImage alloc] initWithData:data]; im then pushing another view controller on the top and displaying some text in a text view , but i also want to take the image from the cell selected and put that in there too , but everything i try does not work. any ideas on how i can do this Thanks in advance Richard

  Read the article

• How to determine an invalid CFSocket

  - by Chris

  Hi Everyone, how can I avoid, to send data via CFSocketSendData to an invalid socket? I've try to determine the socket state with CFSockerIsValid, but this method returns still true when the other side is close. So how can I determine if the socket is valid? In order so avoid Errors. Thank Chris

  Read the article

• UIPickerView Custom Font

  - by Lee Armstrong

  I have the following code that I have found and tried to implement. I want to set the UIPickerView to have labels that I can customize the text in... When loading this it is just blank at the moment! - (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view { UILabel *pickerLabel = (UILabel *)view; NSString *text = @"TTT"; // Reuse the label if possible, otherwise create and configure a new one if ((pickerLabel == nil) || ([pickerLabel class] != [UILabel class])) { //newlabel CGRect frame = CGRectMake(0.0, 0.0, 270, 32.0); pickerLabel = [[[UILabel alloc] initWithFrame:frame] autorelease]; pickerLabel.textAlignment = UITextAlignmentLeft; pickerLabel.backgroundColor = [UIColor clearColor]; pickerLabel.font = [UIFont fontWithName:@"AmericanTypewriter" size:28]; } pickerLabel.textColor = [UIColor brownColor]; return pickerLabel; }

  Read the article

• How does glClear() improve performance?

  - by Jon-Eric

  Apple's Technical Q&A on addressing flickering (QA1650) includes the following paragraph. (Emphasis mine.) You must provide a color to every pixel on the screen. At the beginning of your drawing code, it is a good idea to use glClear() to initialize the color buffer. A full-screen clear of each of your color, depth, and stencil buffers (if you're using them) at the start of a frame can also generally improve your application's performance. On other platforms, I've always found it to be an optimization to not clear the color buffer if you're going to draw to every pixel. (Why waste time filling the color buffer if you're just going to overwrite that clear color?) How can a call to glClear() improve performance?

  Read the article

• Unbalanced calls to begin/end appearance transitions for <ViewController>,<Tab>

  - by onkar

  I am trying to implement Tabs into my secondView.On button touch(from ViewController.m) I am navigating to secondView(Tabs). In my Tabs.xib file I have added a TabBar at bottom and it is custom class of UITabBar. ViewController.m - (IBAction)touchedInside:(id)sender { NSLog(@"touhced up inside"); Tabs *temp = [[Tabs alloc]initWithNibName:@"Tabs" bundle:nil]; [self.navigationController pushViewController:temp animated:YES]; [self presentViewController:temp animated:YES completion:nil]; } Tabs.m - (void)viewDidLoad { [super viewDidLoad]; AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate]; UITabBarController *tabBarController = [[UITabBarController alloc]init]; /* Tab_1 *firstView = [[Tab_1 alloc] init]; UITabBarItem *item1 = [[UITabBarItem alloc]initWithTitle:@"First" image:nil tag:1]; [firstView setTabBarItem:item1]; NSLog(@"after first tab is added"); Tab_2 *secondView = [[Tab_2 alloc] init]; UITabBarItem *item2 = [[UITabBarItem alloc]initWithTitle:@"Sec" image:nil tag:1] ; [secondView setTabBarItem:item2]; NSLog(@"after second tab is added"); [tabBarController setViewControllers:[NSArray arrayWithObjects:firstView,secondView,nil] animated:NO]; NSLog(@"after tab is added"); [appDelegate.window addSubview:tabBarController.view]; NSLog(@"after view is added"); */ appDelegate.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. UIViewController *viewController1 = [[Tab_1 alloc] initWithNibName:@"Tab 1" bundle:nil]; UIViewController *viewController2 = [[Tab_2 alloc] initWithNibName:@"Tab 2" bundle:nil]; UIViewController *viewController3 = [[Tab_2 alloc] initWithNibName:@"Tab 1" bundle:nil]; tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, viewController3, nil]; appDelegate.window.rootViewController = self.tabBarController; [appDelegate.window makeKeyAndVisible]; Tabs *temp = [[Tabs alloc]initWithNibName:@"Tabs" bundle:nil]; [self.navigationController presentModalViewController:temp animated:NO]; } Errors Unbalanced calls to begin/end appearance transitions for <ViewController: 0x6833c80>. 2012-12-06 09:57:48.963 demoTabs[667:f803] Unbalanced calls to begin/end appearance transitions for <Tabs: 0x6a3fc90>.

  Read the article

• Erase operation in quartz 2D

  - by iphonedevnoob

  Any suggestions on how to perform erase operations in Quartz 2D?

  Read the article

• Opening popup links in UIWebView, possible?

  - by Jasarien

  Hey guys, I have a UIWebView which I'm using as an embedded browser within my app. I've noticed that links in webpages that open new windows are ignored without any call into my code. I've tried breakpointing on - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType and then selecting a link that would open a popup window, and the breakpoint is never hit. Is there anything I can do to intercept that selection of the popup link and get the URL and just load it normally? I'm not interested in displaying a popup window in the app itself, I just want the URL of whatever is going to be loaded in the popup window to load in the main webview itself. Is this possible? Thanks!

  Read the article

• detecting double free object, release or not release ...

  - by mongeta

  Hello, If we have this code in our interface .h file: NSString *fieldNameToStoreModel; NSFetchedResultsController *fetchedResultsController; NSManagedObjectContext *managedObjectContext; DataEntered *dataEntered; In our implementation file .m we must have: - (void)dealloc { [fieldNameToStoreModel release]; [fetchedResultsController release]; [managedObjectContext release]; [dataEntered release]; [super dealloc]; } The 4 objects are assigned from a previous UIViewController, like this: UIViewController *detailViewController; detailViewController = [[CarModelSelectViewController alloc] initWithStyle:UITableViewStylePlain]; ((CarModelSelectViewController *)detailViewController).dataEntered = self.dataEntered; ((CarModelSelectViewController *)detailViewController).managedObjectContext = self.managedObjectContext; ((CarModelSelectViewController *)detailViewController).fieldNameToStoreModel = self.fieldNameToStoreModel; [self.navigationController pushViewController:detailViewController animated:YES]; [detailViewController release]; The objects that now live in the new UIViewController, are the same as the previous UIViewController, and I can't release them in the new UIViewController ? The problems is that sometimes, my app crashes when I leave the new UIViewController and go to the previous one, not always. Normally the error that I'm getting is a double free object. I've used the malloc_error_break but I'm still not sure wich object is. Sometimes I can go from the previous UIViewController to the next one and come back 4 or 5 times, and the double free object appears. If I don't release any object, all is working and Instruments says that there are no memory leaks ... So, the final question, should I release those objects here or not ? Thanks, m.

  Read the article

• iPad popover - resignFirstResponder issue

  - by mosdev

  I have two text fields email and password. The following code works fine when the fields are presented on a regular view but when they are on a popover, the resignFirstResponder does not work (becomeFirstResponder works). textFieldsShouldReturn was called for both fields. Any idea if I am missing something? Thanks! - (BOOL)textFieldShouldReturn:(UITextField *)theTextField { if (theTextField == email) { [password becomeFirstResponder]; return NO; } [theTextField resignFirstResponder]; return NO; }

  Read the article

• how to set data into textfeild

  - by shishir.bobby

  hi all i have a table view containing some text. and an selecting a row, i hv to set text on another view's textfeild based on the selected index of row od table view. this is hoe it looks like -(void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath { abc *abcController = [ [ abcController alloc] initWithNibName:@"abcController" bundle:[NSBundle mainBundle]]; [self.navigationController abcController animated:YES]; coffeeObj = [appdelegate.coffeeArray objectAtIndex:indexPath.row]; abcController.sender.text =[NSString stringWithFormat:@" to %@", coffeeObj.to]; abcController.mobileNumber.text = [NSString stringWithFormat:@" from %@", coffeeObj.from]; [abcController release]; } and this is how my textfeilds looks like, which is in table view if(indexPath.row == 0) textField.keyboardType = UIKeyboardTypeDefault; else textField.keyboardType = UIKeyboardTypePhonePad; textField.autocorrectionType = UITextAutocorrectionTypeNo; [cell.contentView addSubview:textField]; if(indexPath.row == 0) { self.sender = textField; cell.textLabel.text = NSLocalizedString(@"From :", @" "); NSLog(@"sender: %@", self.sender.text); } else { self.mobileNumber = textField; cell.textLabel.text = NSLocalizedString(@"To :" ,@" "); NSLog(@"mobile Number: %@", self.mobileNumber.text); } [textField release]; my problem is i am not abel to set text in these textfeilds from previous view..... plz let me knw where i am wrong..... w8ing for a quick reply.. regards shishir

  Read the article

• how a view controller know when it is dismissed or poped out of the navigation controller stack?

  - by Thanh-Cong Vo

  Hi all, My view controller needs to know when it is poped out of the navigation controller stack, so that it can retain itself, wait and release itself later with another notification. I intend to do like that when the view is sent dealloc message: - (void)dealloc { if (self.isPerformingSomeTask) { self.isPopedOut = YES; [self retain]; return; } [super dealloc]; } But I think this is not a good solution? Any idea?

  Read the article

• Handling touches in UITableViewController

  - by subw

  I want to implement the handling of an additional swipe gesture in my UITableViewController. However, it seems that in the case of tableviews the usual touch handling methods like -[touchesBegan::] of the controller are not called. How can I handle touches on a UITableView?

  Read the article

• Navigation view system with webview problem with touches!

  - by Gonçalo Falcão

  Hello i have search everything and i didn't figure this out! I have a tab bar controller with 5 navigation controlls, in one of the navigation control, i have a view, with a table view inside, and when i click that item i push a new view, that view have view -webview -view i create that second view(is transperant) because i need to handle a single tap to hide my toolbar and navigation bar, and the webview was eating all the touches! I put that view and implement on the view controller -(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ UITouch* touch = [touches anyObject]; if(touch.tapCount == 2){ [NSObject cancelPreviousPerformRequestsWithTarget:self]; } [[wv.subviews objectAtIndex:0] touchesBegan:touches withEvent:event]; [super touchesBegan:touches withEvent:event]; } -(void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{ [[wv.subviews objectAtIndex:0] touchesMoved:touches withEvent:event]; [super touchesMoved:touches withEvent:event]; } -(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ UITouch* touch = [touches anyObject]; if(touch.tapCount == 1){ [self performSelector:@selector(hideBars) withObject:nil afterDelay:0.3]; } [[wv.subviews objectAtIndex:0] touchesEnded:touches withEvent:event]; [super touchesEnded:touches withEvent:event]; } -(void) touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{ [[wv.subviews objectAtIndex:0] touchesCancelled:touches withEvent:event]; [super touchesCancelled:touches withEvent:event]; } wv is my UIWebView IBOutlet now i can get the the touches in my controller and send them to my webview. So i thought everything was working, i'm able to scroll, but now when i have links i'm not able to click them. And the webview is detecting the links i have made that test. So any other way to implements this to get the touches in the links, or i should change this workaround to hide the toolbars so i can have the full functionability of the webview? Thks for the help in advance.

  Read the article

• iPad UIColor Saturation Issues

  - by Carter Allen

  I am trying to draw a UIColor on the screen of a view-based app, and I am trying to do so using HSB. It is absolutely necessary for me to use HSB in this case. I can create a UIColor object with any S value from 0.0f to 0.75f, but past that the numerical changes have no effect on the actual saturation displayed. I need it to be 1.0f, but it is still using 0.75f. Any ideas on why it is doing that, and how I can make it work?

  Read the article

• How no make a button show UINavigationBar only in 3 of 5 tabs in UITabBar?

  - by Mike Rychev

  I have an app, where there's a UITabBar with 5 tabs. When user shakes the device, I want the UINavigationBar to push an UIImageView. When I show the UIImageView, I need to hide both tab and nav bars. After that, when user taps the UIImageView, the NavBar appears again and user can go to the UIImageView's parent view. I make the Nav Bar appear like this: [[self navigationController] setNavigationBarHidden:NO animated:YES]; But in two tabs I have to make the Nav Bar appear, so user can switch to UIImageView's parentView and then, when the parent view appears, hide the nav bar. How can I do it?

  Read the article

• Referencing Entity from external data model - Core Data

  - by Ben Reeves

  I have a external library which includes a core data model, I would like to add a new entity to this model which has a relationship with one of the entities from the library. I know I could modify the original, but is there a way to without needing to pollute the library? I tried just creating a new model with an entity named the same, but that doesn't work: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Can't merge models with two different entities named 'Host''

  Read the article

• UIView "suck" animation

  - by igul222

  I'd like to use the UIView "sucking" transition (view is "sucked" into a point) referenced here: http://iphonedevwiki.net/index.php/UIViewAnimationState#Using_suckEffect The method above, however, uses private APIs, which makes it next to useless for an App Store app. How can I recreate a similar effect without relying on private APIs? I'm guessing the answer has to do with OpenGL, although I have zero experience there.

  Read the article

• How to search and locate (annotate) in MKMapView?

  - by chaitanya

  Hi, In my application I have to search five nearest locations of "medical services" using the user current location and annotate those locations on my MKMapView. Can any one tell me how to search with a particular keyword (eg. medical services, garages) by using user current locations and annotate onto the map and when the user taps on the annotations it should show the complete address of the locations which is annotated. Can anyone help me in this?

  Read the article

• ASIHTTPRequest - HTTPS

  - by Tejaswi Yerukalapudi

  Does ASIHTTPRequest support HTTPS connections? My connection right now works for a HTTP connection and errors if I try a HTTPS Connection. (Goes into requestFailed and gives me a ASIHTTPErrorRequestDomain) -(void) getPatientsList { av.hidden = NO; [av startAnimating]; NSString *urlString = [IP stringByAppendingString:@"Method1"]; NSURL *url = [NSURL URLWithString:urlString]; ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url]; NSLog(@"URL = %@",url); [request setRequestMethod:@"POST"]; [request setPostValue:@"val1" forKey:@"key1"]; [request setPostValue:@"val2" forKey:@"key2"]; [request setDelegate:self]; [request startAsynchronous]; } - (void)requestFinished:(ASIHTTPRequest *)request { // Use when fetching text data //NSString *responseString = [request responseString]; // Use when fetching binary data NSData *responseData = [request responseData]; [self parsePatients:responseData]; [av stopAnimating]; av.hidden = YES; } - (void)requestFailed:(ASIHTTPRequest *)request { NSError *error = [request error]; [av stopAnimating]; av.hidden = YES; } Thanks, Teja

  Read the article

• how to find latitude longitude from the address?

  - by MD

  I am using MapKit for google map?How to find latitude longitude using address?

  Read the article

< Previous Page | 399 400 401 402 403 404 405 406 407 408 409 410  | Next Page >