Search Results

Search found 11020 results on 441 pages for 'cocoa dev'.

Page 97/441 | < Previous Page | 93 94 95 96 97 98 99 100 101 102 103 104  | Next Page >

  • NSPredicate and arrays

    - by bend0r
    Hello, I've got a short question. I have an NSArray filled with Cars (inherits from NSObject) Car has the @property NSString *engine (also regarded @synthesize ...) Now I want tu filter the array using NSPredicate predicate = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"(engine like %@)", searchText]]; newArray = [ArrayWithCars filteredArrayUsingPredicate:predicate]; This throws an valueForUndefinedKey error. Is the predicateWithFormat correct? thanks for your responses

    Read the article

  • Objective C - Constants with behaviour

    - by Akshay
    Hi, I'm new to Objective C. I am trying to define Constants which have behavior associated with them. So far I have done - @interface Direction : NSObject { NSString *displayName; } -(id)initWithDisplayName:(NSString *)aName; -(id)left; // returns West when North -(id)right; // return East when North @end @implementation Direction -(id)initWithDisplayName:(NSString *)aName { if(self = [super init]) { displayName = aName; } return self; } -(id)left {}; -(id)right {}; @end Direction* North = [Direction initWithDisplayName:@"North"]; // error - initializer element is not constant. This approach results in the indicated error. Is there a better way of doing this in Objective C.

    Read the article

  • How to dismiss the MFMailComposeViewController in cocos2d ?

    - by srikanth rongali
    I have changed my code to this way. Now mail controller is opening in landscape mode. But the problem is If I touch on cancel button or send button the mail controller is not dismissing its view. How can I do it ? -(void)goToFirstScreen:(id)sender { NSLog(@"goToFirstScreen: "); CCScene *Scene = [CCScene node]; CCLayer *Layer = [EmailScene node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] setAnimationInterval:1.0/60]; [[CCDirector sharedDirector] pushScene: Scene]; } Th EmailScene class is #import "EmailScene.h" #import "testOfEnd.h" @implementation EmailScene - (id) init { self = [super init]; if (self != nil) { [self displayComposerSheet]; } return self; } -(void)displayComposerSheet { [[CCDirector sharedDirector] pause]; picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [[[CCDirector sharedDirector] openGLView] addSubview:picker.view]; [[CCDirector sharedDirector] stopAnimation]; [picker presentModalViewController:picker animated:YES]; [picker release]; } - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error { [[CCDirector sharedDirector] resume]; //dismiss view after otherwise the code is not executed [picker.view removeFromSuperview]; [[CCDirector sharedDirector] startAnimation]; [picker dismissModalViewControllerAnimated:YES]; //return to previous scene CCScene *Scene = [CCScene node]; CCLayer *Layer = [testOfEnd node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] replaceScene:Scene]; } @end Thank You.

    Read the article

  • Debugging runtime error "Terminating app due to uncaught exception 'NSInternalInconsistencyException

    - by Bill
    I'm going through the Beginning iPhone Development book & stuck in chapter 9. I've spent a few hours trying to debug this error w/o avail: 2010-05-01 19:27:51.361 Nav2[4113:20b] *** Assertion failure in -[UITableView _createPreparedCellForGlobalRow:withIndexPath:], /SourceCache/UIKit/UIKit-984.38/UITableView.m:4709 2010-05-01 19:27:51.362 Nav2[4113:20b] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:' 2010-05-01 19:27:51.364 Nav2[4113:20b] Stack: ( ... ) I'm not looking for help w/ the book, but tips for how to debug this error? Can I pin down which of my cellForRowAtIndexPath methods is the problem? And how to inspect the type? Or other things should I look at?

    Read the article

  • Write simple data to iphone sandbox?

    - by fuzzygoat
    I want to write a small bit of data from my app to the iphone so I can load it when the app next starts. I am going to write the data using NSCoding, but I don't know what I should be specifying as a path. I understand I would write the data to the application sandbox, just not sure how to specify that. gary

    Read the article

  • How to order a window to front if you are not in the Application in Objective-C

    - by ahmet2106
    Hello, Is there a way to make a "makeKeyAndOrderToFront" without beeing in the Application? If I am in Safari and in the Menu Bar there is a MenuItem to my App, after I press this, i want to show a window of my App in the Front (makeKeyAndOrderToFront makes this just if you are in the Application). Which way can I use? And how can I animate this Window (like Tweeties Add new Tweet - atebits.com). Thank you!

    Read the article

  • Problems with NSTask in OS X 10.6 Snow Leopard

    - by kubi
    Has anyone else seen or heard of any issues with NSTask in 10.6? This code worked fine yesterday, and is not working today. NSTask *task = [converter task]; [task waitUntilExit]; NSLog(@"Task did complete"); The task does what it's supposed to do (I checked the output and it's fine), but the program will wait indefinitely at the waitUntilExit method. I have a few unit tests that use similar code, they all had passed previously, but as of yesterday, they are no longer working.

    Read the article

  • mouseover detection in NSTableView's NSCell?

    - by Wigwam
    I am wanting to change the text background color on a tableview's cell when it is hovered upon, similar to how AddressBook "highlights" the label of a contact's element when you mouseover the label names. However I cannot figure out how to accomplish... detecting a mouseover on a particular NSCell and... After detecting the cell his hovered upon, highlighting the text in that cell (not highlighting the entire row as if the user selected that row) As NSCell is not a subclass of NSView this seems to be a very difficult task. Any example of this or explanation on how this might be done would be greatly appreciated. Thanks!

    Read the article

  • How to debug 'no entities specified' when working with ZSync and CoreData Syncing

    - by monotreme
    I'm trying to get ZSync to work between a desktop and iPhone app. I've got my schemas set up and all info matches between my MOM and my schema so I should be good to go. When I initiate my sync, however, I get this error. |Miscellaneous|Error| SyncServices precondition failure in [ISyncSession _validateClient:entityNames:beforeDate:clientHasTruthForEntityNames:target:selector:]: no entities specified Anyone know what this means, and how to debug it? I'm a novice with this SyncServices stuff. Cheers!

    Read the article

  • Bug in XCode debugger?

    - by John Smith
    I am working on an iPhone app which is using an external library for which I have the source. During debugging some of the objects are listed as 0x0 in the debugger but the app runs fine. Also, some of the objects addresses point to the wrong thing. These symbols are in the external library. The addresses are fine if I am tracing through a file actually in the external library. Does anyone have suggestions how to stop this behavior?

    Read the article

  • Memory Leaks when touching UITableViewCells and poping off view.

    - by Falcon
    Hi All, I'm currently having a problem where the leaks tool is reporting a slew of memory leaks after clicking on cells within a UITableView and then hitting the back button and popping off the view. Majority of the leaks reported can not be traced back to any specific location in my code, they are: Leaked Object # Address Size Responsible Library Responsible Frame NSCFArray 2 < multiple > 64 UIKit -[UITouch(UITouchInternal) UITouch 2 < multiple > 128 GraphicsServices PurpleEventCallback Malloc 48 Bytes 2 < multiple > 96 Foundation -[NSCFArray insertObject:atIndex:] UIDelayedAction 2 < multiple > 96 UIKit -[UILongPressGestureRecognizer startTimer] NSCFArray 2 < multiple > 64 UIKit -[UILongPressGestureRecognizer touchesBegan:withEvent:] Malloc 32 Bytes 2 < multiple > 64 Foundation -[NSCFArray insertObject:atIndex:] Malloc 16 Bytes 2 < multiple > 32 Foundation -[NSCFSet unionSet:] Now I have commented out all my code in any touch event functions that I have written and it still leaks if I click on the cell a few times and then hit the back button to return to the previous view. Any ideas on what might actually be the problem here? Thanks,

    Read the article

  • Resizing a UIButton programmatically by maintaining a margin

    - by Oscar Del Ben
    Hello, I'm adding a UIButton to a tableView footer programmatically. This button has a left and right margin that is equal to the tableView margin: UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; deleteButton.frame = CGRectMake(10, 60, 300, 34); deleteButton.autoresizingMask = UIViewAutoresizingFlexibleWidth I'm adding autoresizingMask because I want to support rotation. However, it does not work as I want, as the button stretches all the way down to the right, as shown by the image below. Any idea how to fix it? If I remove the autosizing property then the margin is correct.

    Read the article

  • Checking if a touch is withing a UIButton's bounds.

    - by Joshua
    I am trying to make an if statement which will check whether the users touch is within a UIButton's bounds. I thought this would be an easy affair as UIButton is a subclass of UIView, however my code doesn't seem to work. This is the code I have been using. - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { NSArray *array = [touches allObjects]; UITouch *specificTouch = [array objectAtIndex:0]; currentTouch = [specificTouch locationInView:self.view]; if (CGRectContainsPoint(but.bounds, currentTouch)) { //Do something is in bounds. } //Else do nothing. }

    Read the article

  • iPhone: Infinitely looping content inside UIScrollView

    - by Cuzog
    In my app, I'm designing a custom picker that allows the user to choose an item by scrolling horizontally and touching it. I need the buttons inside that view to loop around infinitely as the user scrolls in a certain direction. What would be the best way to tackle this feature while maintaining the inertial scrolling of UIScrollView when the content loops around out of the view? From my research of others trying to attempt this, they have trouble maintaining the deceleration animation if the scroll position is programatically shifted mid-scroll after the user lifts their finger. How can I work around this limitation? An example of an app that currently has this feature is Apple's MobileMe Gallery app. In the interface, after choosing a gallery, at the top, there is a horizontally scrollable photo picker that loops infinitely as it is dragged one direction. Any advice is greatly appreciated.

    Read the article

  • UIPageControl design challenge

    - by Sheehan Alam
    My app has a UITabBarController that loads many different UINavigationControllers. I want a UIPageControl to switch between the different UINavigationControllers. Do I place the UIPageControl in my UINavigationController or in my appDelegate? Suggestions and best practices are welcome.

    Read the article

  • Simple NSTableView bindings example

    - by sirjorj
    I am trying to populate a 2-column NSVTableView via bindings, but the data is not showing up in the table. In XCode: I have a NSMutableArray in my AppDelegate that will hold the data, as well as the corresponding @property and @synthesize. On an event, I call [removeAllObjects] on the NSMutableArray and repopulate it with some NSDictionary objects. Each dictionary contains 2 KVP's: a NAME and a VALUE. In IB: I added an NSArrayController and bound it's Content Array to my AppDelegate and set the ModelKeyPath to the name of the NSMutableArray in the AppDelegate. On the NSTableView, I bound the Content to the ArrayController. ControllerKey = "arrangedObjects", ModelKeyPath = empty. For each of the two columns, I bound the Value to the AppController and set the ModelKeyPaths to NAME and VALUE respectively. ControllerKey = "ArrangedObjects". I have tried several other things, such as using an NSArray in the app delegate and making a new one every time I need to update the values. There must be some tiny little thing I am forgetting. What is it? jorj

    Read the article

  • Why Doesn't UIWebView release all of its memory?

    - by Theory
    I have a graphic-intensive iPad app that features a UIWebView. Using the simulator (iOS 4.2.1), I can see Real Mem increase quite a lot as I browse. The more I browse, the more RAM it uses. When I close the UIWebView and release it, some of the memory it used is freed, but not all of it. This is annoying. Okay, so maybe it's because it isn't deallocated right away. Fine. But then I would expect the system to do some cleanup when there's a memory warning. However, if I browse around, then close the UIWebView (and release it), then trigger a memory warning in the simulator, Real Mem does not change! WTF? So why is this? Why isn't UIWebView better at releasing memory back to the system? And why doesn't it appear to respond to memory warnings? Am I missing something?

    Read the article

  • iPhone Multithreaded Search

    - by Kulpreet
    I'm sort of new to any sort of multithreading and simply can't seem to get a simple search method working on a background thread properly. Everything seems to be in order with an NSAutoreleasePool and the UI being updated on the main thread. The app doesn't crash and does perform a search in the background but the search results yield the several of the same items several times depending on how fast I type it in. The search works properly without the multithreading (which is commented out), but is very slow because of the large amounts of data I am working with. Here's the code: - (void)filterContentForSearchText:(NSString*)searchText { isSearching = YES; NSAutoreleasePool *apool = [[NSAutoreleasePool alloc] init]; /* Update the filtered array based on the search text and scope. */ //[self.filteredListContent removeAllObjects]; // First clear the filtered array. for (Entry *entry in appDelegate.entries) { NSComparisonResult result = [entry.gurmukhiEntry compare:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])]; if (result == NSOrderedSame) { [self.filteredListContent addObject:entry]; } } [self.searchDisplayController.searchResultsTableView performSelectorOnMainThread:(@selector(reloadData)) withObject:nil waitUntilDone:NO]; //[self.searchDisplayController.searchResultsTableView reloadData]; [apool drain]; isSearching = NO; } - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { if (!isSearching) { [self.filteredListContent removeAllObjects]; // First clear the filtered array. [self performSelectorInBackground:(@selector(filterContentForSearchText:)) withObject:searchString]; } //[self filterContentForSearchText:searchString]; return NO; // Return YES to cause the search result table view to be reloaded. }

    Read the article

  • iPhone SDK: Bonjour & NSNetService name != published name?

    - by Harkonian
    In my iPhone app, I'm publishing a bonjour service and using the following delegate method: - (void)netServiceDidPublish:(NSNetService *)ns { NSLog(@"Bonjour Service Published: http://%@.%@", [ns name], [ns domain]); } The "name" property is returning the device name, "How's Testing", which is correct. However, when I use Safari to discover available services the name is "hows-testing" -- the service is http://hows-testing.local.:. Why is the published name different than what is being reported by the NSNetService? How do I display for the actual name of the published service? Assuming that, for some reason, there is no way to get the published name from the object, how do I determine it myself? I understand that it's based on device name, but what are the substitution rules? Remove apostrophes, replace spaces with dash...anything else? What about special characters?

    Read the article

  • How to stop the targets generated by schedule:@selector(target:) interval:timeInterval ?

    - by srikanth rongali
    I am using [self schedule:@selector(target:) interval:timeInterval]; for generating bullets in shooting game in cocos2d. In target: I called method targetGenerate to generate for bullet. The enemy generates these bullets. After the player won or enemy won the game the bullets should stop. But, I could not make them stop. I used flags for this. But they did either work. If I set flag1 = 1; for game won. I am using [self schedule:@selector(update:)]; for updating the bullet position to know it hits the player or not ? And I tried like this -(id)init { if( (self = [super init]) ) { //code for enemy [self schedule:@selector(target:) interval:timeInterval]; [self schedule:@selector(update:)]; }return self; } -(void)target:(ccTime)dt { if(flag != 1) [self targetGenerate]; } -(void)targetGenerate { //code for the bullet to generate; CCSprite *bullet = … } -(void)update:(ccTime)dt { //code for to know intersection of bullet and player } But it was not working. How can I make the bullets to disappear after player won the game or enemy won the game ? Thank you.

    Read the article

< Previous Page | 93 94 95 96 97 98 99 100 101 102 103 104  | Next Page >