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  • How to cancel a touch sequence

    - by Alex
    I have an UIImage view that responds to touch events. I want to cancel the touch sequence if the touch goes outside of certain bounds. How can I do that? I know that I can inspect the coordinates of the touch object, what I don't know is how to cancel the sequence. I don't see any event in the API that allows for that.

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  • Will it use more and more memory if I keep drawing on the UIView?

    - by Tattat
    This is my drawRect: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, [UIColor redColor].CGColor); CGContextMoveToPoint(context, x1, y1); CGContextAddLineToPoint(context, x2, y2); CGContextStrokePath(context); If I run this code thousand times or more. My UIView will have many lines on that. Will it use more memory than only just one line on it? Er... ...I mean, will the program remember the line I draw or after it draw the lines, it won't have any information in the memory. thz .

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  • Is it possible to create a UINavigationController within a ModalPopup?

    - by aloo
    Hi I have a modalViewController that I am popping up using [self presentModalViewController:myController animated:YES]; I have an event occurring within myController which I would like to result in another controller being pushed onto the navigation stack ON TOP OF myController (which again has been presented modally). How can I do this? I have tried the following from within myController: UINavigationController* navController = [[UINavigationController alloc] initWithRootViewController:self]; NewController* n = [[NewController alloc] init]; [navController pushViewController:n animated:YES]; [n release]; This does not work however....

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  • NSMutableArray in appdelegate - EXEC_BAD_ACCESS

    - by Tejaswi Yerukalapudi
    Hi, I'm trying to use a global array in the appdelegate as a quick fix for a demo I'm building. The relevant code for this .h file has the declaration { NSMutableArray *trnEntered; } @property (nonatomic, retain) NSMutableArray *trnEntered .m file has the following code - trnEntered = [[NSMutableArray alloc] init]; NSLog(@"%@",[trnEntered count]); // prints null. [trnEntered addObject:@"1"]; NSLog(@"%@",[trnEntered count]); // exec bad access. Not sure where I'm going wrong here. Looks fairly straight forward. Thanks for the help in advance, Teja.

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  • want to go to next view from rightbarbutton item.

    - by uttam
    I am using this code to get the three button on the right side of the navigationbar ,button are visible but next to this I want to go to the next view from this three button image, text ,vedio. NSArray *segmentTextContent = [NSArray arrayWithObjects:@"Image",@"Text",@"Video",nil]; UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:segmentTextContent]; segmentedControl.frame = CGRectMake(13, 20, 150, kCustomButtonHeight); segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar; segmentedControl.momentary = YES; defaultTintColor = [segmentedControl.tintColor retain]; // keep track of this for later UIBarButtonItem *segmentBarItem = [[UIBarButtonItem alloc] initWithCustomView:segmentedControl]; self.navigationItem.rightBarButtonItem = segmentBarItem; if(segmentedControl.selectedSegmentIndex=0) { [segmentedControl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged]; } else if(segmentedControl.selectedSegmentIndex==1) { [segmentedControl addTarget:self action:@selector(segmentAction1:) forControlEvents:UIControlEventValueChanged]; } else if(segmentedControl.selectedSegmentIndex==2) { [segmentedControl addTarget:self action:@selector(segmentAction2:) forControlEvents:UIControlEventValueChanged]; } [segmentBarItem release]; //[modalBarButtonItem release]; } return self; }

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  • Does iOS 4 Have "Real" Multitasking?

    - by pkulak
    Ever since the first beta came out I've been trying to find out if "real" multitasking is possible. I.E., can you put a program in the background and have it hang on to a network connection indefinitely? I'm thinking about IM or IRC apps, for example. I've compiled an app myself on OS 4, and without changing a thing it appeared to stay running in the background, but for all I know it was just suspended to memory. The docs say the best you can do is request up to 10 minutes, but in the developer presentation they showed off Skype sitting in the background and then notifying the user that a call was coming in. Does anyone know for sure how this is all going to work?

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  • Two view App with root template view

    - by Tieman
    Hi I was wanted to do Application witch have a root template view with a nice logo on top or something adn load other views just below (here is what I have right now: Test App ) But I have a little problem. If I'll remove a comment in file TestAppDelegate.m on line 58 //[currentView release]; Application will crash with bunch of errors when I try to switch views. But if I comment this line Project analyzer is telling me that I have a potential leak with currentView variable. Can somebody spare some time and see in that code what I did wrong?

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  • what to know in order running Activity in extern application

    - by rayman
    Hi, I wonder if it's possbile, and if it is, what i`am suppose to know, in order to run an Activity in some application, while i am calling it from another application. for example, now i am on Application A, and i want to run an Activity on Application B. what parameters do i need to know in order to do that? Thanks,

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  • Expected specifier-qualifier-list before 'CGPoint'

    - by Rob
    My project compiles and runs fine unless I try to compile my Unit Test Bundle it bombs out on the following with an "Expected specifier-qualifier-list before 'CGPoint'" error on line 5: #import <Foundation/Foundation.h> #import "Force.h" @interface WorldObject : NSObject { CGPoint coordinates; float altitude; NSMutableDictionary *forces; } @property (nonatomic) CGPoint coordinates; @property (nonatomic) float altitude; @property (nonatomic,retain) NSMutableDictionary *forces; - (void)setObject:(id)anObject inForcesForKey:(id)aKey; - (void)removeObjectFromForcesForKey:(id)aKey; - (id)objectFromForcesForKey:(id)aKey; - (void)applyForces; @end I have made sure that my Unit Test Bundle is a target of my WorldObject.m and it's header is imported in my testing header: #define USE_APPLICATION_UNIT_TEST 1 #import <SenTestingKit/SenTestingKit.h> #import <UIKit/UIKit.h> #import "Force.h" #import "WorldObject.h" @interface LogicTests : SenTestCase { Force *myForce; WorldObject *myWorldObject; } @end

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  • Pushing View from UITableView Problem

    - by golfromeo
    Basically, what I want is to be able to press a record in a table, and have it push to another view. To do this, I created a nib file and a UIViewController subclass (for the "pushed" view). I set the nib file's "File Owner" to be the controller I created. Then, in the view controller of the table that will push that view, I set the didSelectRowIndexAtPath: method to include the following: SearchTableController *vc = [[SearchTableController alloc] initWithNibName:@"SearchTable" bundle:[NSBundle mainBundle]]; [self.navigationController pushViewController:vc animated:YES]; [vc release]; (where "SearchTableController" is the name of the UIViewController subclass and "SearchTable" is the name of the nib file) However, when I run this code and click on the record, nothing happens- the app doesn't crash, but the view doesn't get pushed. The code is getting run, because it works when I NSLog(), but it doesn't seem to be pushing the view. Thanks for any help in advance.

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  • How to create svn folder in mac os x

    - by niceramar
    hi, i am working on iphone project, i like to create an svn folder and link that one to my server I tried to run the below command fsp3s-MacBook-Pro:~ fsp3$ svnadmin create /ram/Code/SVN i got the below error svnadmin: Repository creation failed svnadmin: Could not create top-level directory svnadmin: Can't create directory '/ram/Code/SVN': No such file or directory How to create an SVN folder in mac os x? thanks!

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  • setDelegate explanation

    - by mac
    Hi i am new to iphone developement , can any one explain me , why setDelegate is used, where we should use it. [request setDelegate:sender]; thanks in advance.

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  • how to fetch & store any column from coredata to array

    - by user440485
    Hi All, I am working on page(Lesson) has button called "AddToFavorite". when i click on this button lessonID,lessonHeading is added in the Coredata. - (NSFetchedResultsController *)fetchedResultsController { // Set up the fetched results controller if needed. if (fetchedResultsController != nil) { return fetchedResultsController; } // Create the fetch request for the entity. NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; // Edit the entity name as appropriate. NSEntityDescription *entity = [NSEntityDescription entityForName:@"Favorites" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // Edit the sort key as appropriate. NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"lessonHeading" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:@"lessonHeading" cacheName:@"Root"]; self.fetchedResultsController = aFetchedResultsController; self.fetchedResultsController.delegate = self; [aFetchedResultsController release]; [fetchRequest release]; [sortDescriptor release]; [sortDescriptors release]; return fetchedResultsController; } -(void)addToFavorites { UIAlertView *alert=[[UIAlertView alloc]initWithTitle:nil message:@"Lesson has been added successfully to your Favorite List" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release]; //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; [addingManagedObjectContext setPersistentStoreCoordinator:[[fetchedResultsController managedObjectContext] persistentStoreCoordinator]]; Favorites *fav = [NSEntityDescription insertNewObjectForEntityForName:@"Favorites" inManagedObjectContext:addingContext]; fav.lessonID=[[data objectAtIndex:count]objectForKey:@"LessonID"]; fav.lessonTitle=[[data objectAtIndex:count]objectForKey:@"LessonTitle"]; [self didFinishWithSave:YES]; [addingContext release]; } My problem is that i want to show an alert if this lessonID is already existing in the coreData. show guide me how i can match the current page lessonID with the existing lessonID's in the CoreData. I am using CoreData 1st time.so sory for any mistake ...& thanks for ypur help frnds.

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