Search Results

Search found 45328 results on 1814 pages for 'iphone developer program'.

Page 492/1814 | < Previous Page | 488 489 490 491 492 493 494 495 496 497 498 499  | Next Page >

  • Zoom in UIImageView without scrollView nor WebView

    - by camilo
    Hi, Is there any code example teaching how to zoom in and out in a UIImageView by user taps? I know it is possible to do it with UIScrollView and with UIWebView, but these solutions both need a lot of changes in the code, and I'm working on schedule (bad teachers). I wanted basically an example on how to manipulate directly the UIImageView. Thanks a lot!

    Read the article

  • Cocos2D Director Pause/Resume Issue

    - by Aditya
    I am trying to play a .gif animation in cocos2D. For this i am using the library glgif. Now, to display the animation i am pausing the Director, adding a subview to show the animation and after the animation is done i am resuming the Director. However, I am not able to resume the state of the Director and it shows blank. So I tried this without pausing and resuming this Director and it still did not work.I also tried detaching the director before tha animation and adding it back afterwards and even that did not work. So is there a way to pause/suspend the Director in the application and properly restore is back? Thanks. Code sample: [[Director sharedDirector] pause]; [[Director sharedDirector] detach]; AppDelegate *del = [[UIApplication sharedApplication] delegate]; [del.window addSubview:del.viewController.view]; [del.window makeKeyAndVisible]; // this is code to call glgif class and start anim. //code to resume the director AppDelegate *del = [[UIApplication sharedApplication] delegate]; [[Director sharedDirector] resume]; [[Director sharedDirector] attachInView:del.window]; MScene *m = [MScene node]; [[Director sharedDirector] replaceScene:m];

    Read the article

  • NSInvalidArgumentException: Illegal attempt to establish a relationship between objects in different

    - by iPhoneDollaraire
    I have an app based on the CoreDataBooks example that uses an addingManagedObjectContext to add an Ingredient to a Cocktail in order to undo the entire add. The CocktailsDetailViewController in turn calls a BrandPickerViewController to (optionally) set a brand name for a given ingredient. Cocktail, Ingredient and Brand are all NSManagedObjects. Cocktail requires at least one Ingredient (baseLiquor) to be set, so I create it when the Cocktail is created. If I add the Cocktail in CocktailsAddViewController : CocktailsDetailViewController (merging into the Cocktail managed object context on save) without setting baseLiquor.brand, then it works to set the Brand from a picker (also stored in the Cocktails managed context) later from the CocktailsDetailViewController. However, if I try to set baseLiquor.brand in CocktailsAddViewController, I get: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Illegal attempt to establish a relationship 'brand' between objects in different contexts' From this question I understand that the issue is that Brand is stored in the app's managedObjectContext and the newly added Ingredient and Cocktail are stored in addingManagedObjectContext, and that passing the ObjectID instead would avoid the crash. What I don't get is how to implement the picker generically so that all of the Ingredients (baseLiquor, mixer, garnish, etc.) can be set during the add, as well as one-by-one from the CocktailsDetailViewController after the Cocktail has been created. In other words, following the CoreDataBooks example, where and when would the ObjectID be turned into the NSManagedObject from the parent MOC in both add and edit cases? -IPD UPDATE - Here's the code: - (IBAction)addCocktail:(id)sender { CocktailsAddViewController *addViewController = [[CocktailsAddViewController alloc] init]; addViewController.title = @"Add Cocktail"; addViewController.delegate = self; // Create a new managed object context for the new book -- set its persistent store coordinator to the same as that from the fetched results controller's context. NSManagedObjectContext *addingContext = [[NSManagedObjectContext alloc] init]; self.addingManagedObjectContext = addingContext; [addingContext release]; [addingManagedObjectContext setPersistentStoreCoordinator:[[fetchedResultsController managedObjectContext] persistentStoreCoordinator]]; Cocktail *newCocktail = (Cocktail *)[NSEntityDescription insertNewObjectForEntityForName:@"Cocktail" inManagedObjectContext:self.addingManagedObjectContext]; newCocktail.baseLiquor = (Ingredient *)[NSEntityDescription insertNewObjectForEntityForName:@"Ingredient" inManagedObjectContext:self.addingManagedObjectContext]; newCocktail.mixer = (Ingredient *)[NSEntityDescription insertNewObjectForEntityForName:@"Ingredient" inManagedObjectContext:self.addingManagedObjectContext]; newCocktail.volume = [NSNumber numberWithInt:0]; addViewController.cocktail = newCocktail; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:addViewController]; [self.navigationController presentModalViewController:navController animated:YES]; [addViewController release]; [navController release]; }

    Read the article

  • Stream multiple files in _one_ ASIHTTPRequest

    - by Snej
    What is best practice to stream multiple files in one ASIHTTPRequest? Right now, for one file I use: .... ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:someUrl]; [request setShouldStreamPostDataFromDisk:YES]; [request appendPostDataFromFile:someFilePath]; [request startSynchronous]; How to stream multiple files without placing all files in memory before transmission?

    Read the article

  • How to not persist NSManagedObjects retrieved from NSManagedObjectContext

    - by RickiG
    Hi I parse an xml file containing books, for each new node I go: Book *book = (Book*)[NSEntityDescription insertNewObjectForEntityForName:@"Book" inManagedObjectContext:managedObjectContext]; To obtain an NSManagedObject of my Core Data Book Entity, I then proceed to populate the managed Book object with data, add it to an array, rinse, repeat. When I am done, I present the list of books to the user. I have not yet executed the save: NSError *error; if (![managedObjectContext save:&error]) { NSLog(@"%@", [error domain]); } The user now selects one of the books, this one I would like to persist, but only this one, all the other books are of no interest to me any more. The Book Entity does not have/or is part of any relationships. It is just a "single" Entity. If I pull the "save lever" every Book object will be persisted and I will have to delete everything but my desired one. How would I get around this challenge, I can't really seem to find that particular use-case in the Core Data Programming Guide, which sort of also bugs me a bit, am I going against best practice here? Thanks for any help given.

    Read the article

  • How to let the CCSprite handles Touch event?

    - by Tattat
    I created my OwnCCSprite, and it get the implemented CCStandardTouchDelegate protocol, and ccTouchesBegan event. But it seems not working. When I click the CCSprite, the ccTouchesBegan in the CCLayer is called, but the CCSprite's ccTouchesBegan can't called. How can I detect the CCSprite is being touched in CCLayer / OwnCCSprite? or I need to calculate the touch position, and compares it to the OwnCCSprite positions? Thz.....

    Read the article

  • Design patter to keep track UITableView rows correspondance to underlying data in constant time.

    - by DenNukem
    When my model changes I want to animate changes in UITableView by inserting/deleting rows. For that I need to know the ordinal of the given row (so I can construct NSIndexPath), which I find hard to do in better-than-linear time. For example, consider that I have a list of addressbook entries which are manualy sorted by the user, i.e. there is no ordering "key" that represents the sort order. There is also a corresponding UITableView that shows one row per addressbook entry. When UITableView queries the datasource I query the NSMUtableArray populated with my entries and return required data in constant time for each row. However, if there is a change in underlying model I am getting a notification "Joe Smith, id#123 has been removed". Now I have a dilemma. A naive approach would be to scan the array, determine the index at which Joe Smith is and then ask UITableView to remove that precise row from the view, also removing it form the array. However, the scan will take linear time to finish. Now I could have an NSDictionary which allows me to find Joe Smith in constant time, but that doesn't do me a lot of good because I still need to find his ordinal index within the array in order to instruct UITableView to remove that row, which is again a linear search. I could further decide to store each object's ordinal inside the object itself to make it constant, but it will become outdated after first such update as all subsequent index values will have changed due to removal of an object. So what is the correct design pattern to accurately reflect model changes in the UITableView in costant (or at least logarithmic) time?

    Read the article

  • Setting width of UISegmentedControl after removing a segment

    - by David Foster
    I have a UISegmentedControl of width 280. In code, I need to remove the third segment, set the UISegmentedControl's width to 200 and then re-centralise. By configuring the springs and struts in IB, I have set the segmented control up such that when I set the width directly it will automatically re-centre. However, when setting the width in code, is it true I need to set it via -setFrame? If this is the case, then I also need to set its X origin, which renders my auto-centralising redundant. My code: [segmentedControl removeSegmentAtIndex:2 animated:NO]; [segmentedControl setFrame:CGRectMake(segmentedControl.frame.origin.x + ((segmentedControl.frame.size.width - TWO_SEGMENT_SEGMENTED_CONTROL_WIDTH) / 2), segmentedControl.frame.origin.y, TWO_SEGMENT_SEGMENTED_CONTROL_WIDTH, segmentedControl.frame.size.height)]; This works, but seems hugely overblown for my purposes. Is there really no simpler way to set solely the width of the control in code?

    Read the article

  • Passing a NSArray between classes

    - by Althane
    So, my second question based off of this application I'm teaching myself Objective C with. I have a Data Source class, which for now looks mostly like: - (id) init { if (self = [super init]){ listNames = [[NSArray alloc] initWithObjects: @"Grocery", @"Wedding", @"History class",@"CS Class",@"Robotics",@"Nuclear Sciences", @"Video",@"Library",@"Funeral", nil]; NSLog(@"%@",listNames); } return self; } The .h looks as follows: @interface MainViewDataSource : NSObject { NSArray *listNames; } @property (nonatomic, retain) NSArray *listNames; -(NSArray *)getListNames; So that's where I make it. Now the problem is that when I try to get the array listNames, it returns nothing. The following piece: NSArray* data = [listData listNames]; Is supposed to put the information in listNames in data, but... isn't. Since I'm rather used to JAva, I'm betting this is an Objective C quirk that I don't know how to fix. Which is why I'd be here asking for help. What's the proper way to pass around NSArrays like this?

    Read the article

  • Limit number of charchters in uitextview !

    - by hib
    Hello All , I am giving a text view to tweet some string . I am applying the following method to restrict the number of characters to 140 in length. - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{ if([text isEqualToString:@"\b"]){ DLog(@"Ohoooo"); return YES; }else if([[textView text] length] > 140){ return NO; } return YES; } The code is working nicely except the first condition that backspace is not working. suppose that I have reached the limit of 140 characters so that the method will give me false and the user can not insert more characters but after that when I try to delete some characters the text view behave as it is disabled . So the question how do delete characters from textview.text or re-enable the text view .

    Read the article

  • Objective-C Interface Builder don't see renamed class

    - by Jerve
    Hi, I've renamed a UITableViewController class in Xcode, which was used as a parent class in a XIB. The Interface Builder still uses the old name for that class and it compiles and works fine. Interface Builder doesn't see the new name of the class and when I try to type in manually, it compiles and gives me an exception at the runtime: "Unknown class ... in Interface Builder file." Is there a way to update the class name in the Interface Builder? Thanks

    Read the article

  • Bad Access while reading ABAddressBookCopyArrayOfAllPeople

    - by Mohammed Sadiq
    HI all, When I tried to read the record of all peoples from the device as follows: NSArray* allPersons = (NSArray*)ABAddressBookCopyArrayOfAllPeople(addressBook); I am getting a bad access. When I tried the same code in the simulator its working . Stack trace as follows: #0 0x322aafa8 in sqlite3_backup_init #1 0x322cb248 in sqlite3_prepare16 #2 0x32287948 in sqlite3_step #3 0x32e3289c in CPSqliteStatementSendResults #4 0x32e34cf4 in CPRecordStoreProcessStatementWithPropertyIndices #5 0x32e34d26 in CPRecordStoreProcessStatement #6 0x32e36008 in CPRecordStoreProcessQuery #7 0x32e36064 in CPRecordStoreCopyAllInstancesOfClassWhere #8 0x32e3608a in CPRecordStoreCopyAllInstancesOfClass #9 0x33e61f30 in ABCCopyArrayOfAllPeopleInStoreWithSortOrdering #10 0x33e62020 in ABCCopyArrayOfAllPeople #11 0x33e6c184 in ABAddressBookCopyArrayOfAllPeople #12 0x00028308 in -[ContactStore start] at ContactStore.m:192 #13 0x000175e8 in -[StoreManager getState] at StoreManager.m:213 #14 0x00016f40 in -[StoreManager enumerate:] at StoreManager.m:91 #15 0x0001fe7a in -[BackupTask handle] at BackupTask.m:249 #16 0x000238c4 in -[TaskExecuter handleTask:] at TaskExecutor.m:168 #17 0x00023ef2 in -[TaskExecuter run] at TaskExecutor.m:229 #18 0x33f7cacc in -[NSThread main] #19 0x33f2ad14 in __NSThread__main__ #20 0x327587b8 in _pthread_body Any help wil be greatly appreciated ... Best Regards, Mohammed sadiq

    Read the article

  • How to determine the size (in bytes) of a file downloading using NSURLConnection?

    - by RexOnRoids
    I need to know the size of the file I am downloading (in bytes) into my app using NSURLConnection (GET). Here is my bytes recieved code below if it helps. What I need to know is how to get the filesize in bytes so that I can use it to show a UIProgressView. - (void)connection:(NSURLConnection *)theConnection didReceiveData:(NSData *)data // A delegate method called by the NSURLConnection as data arrives. We just // write the data to the file. { #pragma unused(theConnection) NSInteger dataLength; const uint8_t * dataBytes; NSInteger bytesWritten; NSInteger bytesWrittenSoFar; assert(theConnection == self.connection); dataLength = [data length]; dataBytes = [data bytes]; bytesWrittenSoFar = 0; do { bytesWritten = [self.fileStream write:&dataBytes[bytesWrittenSoFar] maxLength:dataLength - bytesWrittenSoFar]; assert(bytesWritten != 0); if (bytesWritten == -1) { [self _stopReceiveWithStatus:@"File write error"]; break; } else { bytesWrittenSoFar += bytesWritten; } while (bytesWrittenSoFar != dataLength); }

    Read the article

  • Is it okay to programmatically create UITouch and UIEvent objects to emulate touch events?

    - by mystify
    I want to simulate some touches on my UI, without using private API. So one simple way to do it is to simply call those -touchesBegan:withEvent:, -touchesMoved:withEvent:, -touchesEnded:WithEvent: and -touchesCancelled:withEvent: methods inside my custom controls. For that, I would have to create UITouch and UIEvent dummy objects with appropriate data inside. Is this fine with them? Or would they reject my app?

    Read the article

  • Is ther anyone familiar with Erica Sadun's APIKit(app private api scanner)?

    - by user262325
    Hello everyone I'm trying to use APIKit to scan my codes to detect if there is private API. apiscanner should run as ./apiscanner ~/Desktop/MyPath/myapp.app I used command 'cd' go to the directory where apiscanner is. But if I call ./apiscanner ~/Desktop/MyPath/MyApp.app on terminal it reports Last login: Sun Jun 13 07:22:07 on ttys002 unknown required load command 0x80000022 Trace/BPT trap logout Even if I copy the files apiscanner and doit to MyPath, then execute, I get the same problem. I think there is something wrong when I run apiscanner under Mac OS X. Welcome any comment Thanks

    Read the article

  • ABMultiValueCopyValueAtIndex gives message sent to deallocated instance.

    - by Mohammed Sadiq
    HI , I am getting a issue when trying to access the kABPersonInstantMessageProperty. The code is as follows : ABMultiValueRef IMS = ABRecordCopyValue(record, kABPersonInstantMessageProperty); CFRetain(IMS); if(IMS) { int IMSCount = ABMultiValueGetCount(IMS); MWLOG(5, @"**** IMS COunt **** : %d", IMSCount); for(int iIM =0; iIM < IMSCount; ++iIM) { MWLOG(5, @"index *** : %d", iIM); CFDictionaryRef dict = ABMultiValueCopyValueAtIndex(IMS, iIM); NSString* label = (NSString*)ABMultiValueCopyLabelAtIndex(IMS, iIM); NSString* service= (NSString*)CFDictionaryGetValue(dict, kABPersonInstantMessageServiceKey); NSString* username= (NSString*)CFDictionaryGetValue(dict, kABPersonInstantMessageUsernameKey); if(label) CFRelease(label); if(service) CFRelease(service); if(username) CFRelease(username); if(dict) CFRelease(dict); } CFRelease(IMS); } But I am getting the following error in console : 2010-03-13 12:39:16.731 mwp[1464:4f0b] * -[CFString retain]: message sent to deallocated instance 0x1582820 2010-03-13 12:49:12.219 mwp[1464:4f0b] * -[CFString _cfTypeID]: message sent to deallocated instance 0x15f0bf0 The stacktrace in the debugger is as follows : **#0 0x3026e017 in forwarding #1 0x3024a0a2 in __forwarding_prep_0___ *#2 0x30201368 in CFRetain * #3 0x325bdb6d in ABCCopyDictionaryWithTypes #4 0x325bdbe3 in ABCMultiDictionaryCreateCopy Is that the issue is with the api. I searched in the net but could nt find any solutions. I am getting this issue only in reading the InstantMessageProperty. Any help would be greatly appreciated .... Best Regards, Mohammed Sadiq.

    Read the article

  • How to mask a UIView

    - by Thomas Joos
    hi guys, I'm working on an app where I draw a UIView via code and I fill it with a UIColor. Next thing I want to load a mask.png file (no transparancy, just black and white) and mask the UIView to change its visual appearance. Any idea how to do this?

    Read the article

  • pushViewController causes memory leak

    - by hookjd
    The Leaks application tells me that the following function is causing a memory leak and I can't figure out why. -(void)viewGameList { GameListController *gameListViewController = [[GameListController alloc] initWithNibName:@"GameListController" bundle:nil]; gameListViewController.rootController = self; [self.navigationController pushViewController:gameListViewController animated:YES]; [gameListViewController release]; } It tells me that this line causes a 128 byte memory leak. [self.navigationController pushViewController:gameListViewController animated:YES]; Am I missing something obvious?

    Read the article

  • UIModalTransitionStylePartialCurl not rotating

    - by Mongo
    I've got a modal view controller that is being displayed using UIModalPresentationFullScreen with the TransitionStyle set as UIModalTransitionStylePartialCurl. This works beautifully. My problem is that when the device is rotated, my view rotates (as intended), but the "curl" effect does not. Does anyone know if this is by design, or is there something else that needs to be done? Thanks.

    Read the article

  • Subview appears behind tableview

    - by Banjer
    When I add a subview to my UITableViewController, it seems to be underneath the tableview. I may be loading my subview incorrectly, or calling addSubview in the wrong place. The subview I'm referring to is the red area above the tabbar that also contains the "Click me" button: You can see that the cell lines kind of overlap. Here is where I'm adding the subview in my TableViewController: - (void)viewDidLoad { [super viewDidLoad]; CGRect hRect = CGRectMake(0, 170, 320, 480); HomeScreenOverlayView *homeView = [[HomeScreenOverlayView alloc] initWithFrame:hRect]; [self.tableView addSubview:homeView]; [homeView release]; } Any ideas? Thanks!

    Read the article

  • MKMapView Not Loading When Called on an NSThread?

    - by Chris
    I am creating a MKMapView in a method named "generateMap". From inside viewDidLoad, this works: [self generateMap]; but this causes the map to quickly load and then disappear, leaving only the blank grey grid: [NSThread detachNewThreadSelector:@selector(spinTheSpinner) toTarget:self withObject:nil]; Any ideas why this might be happening when I call the method through a thread?

    Read the article

  • XCode newb -- #include can't find my file

    - by morgancodes
    I'm trying to get a third party audio library (STK) working inside XCode. Along with the standard .h files, many of the implimentation files include a file called SKINI.msg. SKINI.msg is in the same directory as all of the header files. The header files are getting included fine, but the compiler complains that it can't find SKINI.msg. What do I need to do to get XCode to happily include SKINI.msg?

    Read the article

< Previous Page | 488 489 490 491 492 493 494 495 496 497 498 499  | Next Page >