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  • What's better way to build NSPredicate with to-many deep relationships?

    - by Victor
    Hello, I have three entities: EntityA, EntityB and EntityC connected with to-many relationships. See schema for details: For getting all instance of EntityA which depend from EntityB.name I use the predicate like this: NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ANY EntityB.name like 'SomeName'"]; What should be predicate for getting all instance of EntityA which depend from EntityC.name? I tried query like @"ANY EntityB.entitiesC.name like 'SomeName'" but get exception "multiple to-many keys not allowed here". Best regards, Victor

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  • How to pushviewcontroller to a viewcontroller stored in a tabbaritem?

    - by Jann
    First of all I know this is a long question. REST ASSURED I have tried to figure it out on my own (see: StackOverflow #2609318). This is driving me BATTY! After trying and failing to implement my own EDIT feature in the standard moreNavigationController, I have decided to re-implement my own MORE feature. I did the following: Add a HOME view controller which I init with: initWithRootViewController Add 3 other default tabs with: ResortsListViewController *resortsListViewController; resortsListViewController = [[ResortsListViewController alloc] initWithNibName:@"ResortsListView" bundle:nil]; resortsListViewController.title = [categoriesDictionary objectForKey:@"category_name"]; resortsListViewController.tabBarItem.image = [UIImage imageNamed:@"whatever.png"]; resortsListViewController.navigationItem.title=@"whatever title"; localNavigationController = [[UINavigationController alloc] initWithRootViewController:resortsListViewController]; localNavigationController.navigationBar.barStyle = UIBarStyleBlack; [localControllersArray addObject:localNavigationController]; [localNavigationController release]; [resortsListViewController release]; Those work when i add them to the tabbar. (ie: click on them and it goes to the view controller) Then I add my own MORE view controller to the tabbar: MoreViewController *moreViewController; moreViewController = [[MoreViewController alloc] initWithNibName:@"MoreView" bundle:nil]; moreViewController.title = @"More"; moreViewController.tabBarItem.image = [UIImage imageNamed:@"more.png"]; moreViewController.navigationItem.title=@"More Categories"; localNavigationController = [[UINavigationController alloc] initWithRootViewController:moreViewController]; localNavigationController.navigationBar.barStyle = UIBarStyleBlack; [localControllersArray addObject:localNavigationController]; [localNavigationController release]; [moreViewController release]; Then tabBarController.viewControllers = localControllersArray; tabBarController.moreNavigationController.navigationBar.barStyle = UIBarStyleBlack; tabBarController.customizableViewControllers = [NSArray arrayWithObjects:nil]; tabBarController.delegate = self; That creates the necessary linkages. Okay, so far all is well. I get a HOME tab, 3 category tabs and a customized MORE tab -- which all work. in the MORE tab view controller I implement a simple table view that displays all the other tabs I have in rows. SINCE I want to be able to switch them in and out of the tabbar I created them JUST like i did the resortslistviewcontroller above (ie: as view controllers in an array). When I pull them out to display the title in the tableview (so the user can go to that "view") i simply do the following: // [myGizmoClass CategoryArray] holds the array of view controller tab bar items that are NOT shown on the main screen. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { ... etc... UIViewController *Uivc = [[myGizmoClass plusCategoryArray] objectAtIndex:indexPath.row]; cell.textLabel.text = [Uivc title]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } THIS is where it falls through: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { MyGizmoClass *myGizmoClass= [MyGizmoClass sharedManager]; UIViewController *tbi = [[myGizmoClass plusCategoryArray] objectAtIndex:indexPath.row]; NSLog(@"%@\n",[[tbi navigationItem ]title]); [self.navigationController pushViewController:tbi animated:YES]; } This is the error i get ("ATMs" is the title for the clicked tableview cell so i know the Uivc title is pulling the correct title and therefore the correct "objectatindex": 2010-04-09 11:25:48.222 MouseAddict[47485:207] ATMs 2010-04-09 11:25:48.222 MouseAddict[47485:207] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Pushing a navigation controller is not supported' BIG QUESTION: How do i make the associated VIEW of the UIViewController *tbi show and get pushed into view? I am GUESSING that the UIViewController is the correct class for this tbl .. i am not sure. BUT i just wanna get the view so i can push it onto the stack. Can someone plz help?

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  • STORE KIT - Cannot connect to iTunes Store

    - by dassenno
    Hi, this is my situation: a) I have an app of which i want to add in app purchase. I created an update version of the app. I uploaded a binary and rejected. b) On the provisioning portal i created an app-id with unique id ( not wildchard * ) like: com.mycompanyname.myappintheoryblablabla c) I created a new provisioning profile based on the above app-id d) i installed via xcode the prov profile on the development device and set in the app this profile in the field "code signing identity" e) On itunes connect i created 2 item for the in app purchase and set ad "clear for sale" f) in the application code i implemened the basic calls taken from the Apple sample what i am getting is ( as stated in the subject ) CANNOT CONNECT TO ITUNES STORE. Any clue? Can anyone help me? Regards

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  • UIButton disappears inside selected UITableViewCell

    - by Mike
    I have a table, I have cellForRowAtIndexPath delegate for it and I have instance of UITableViewCell being created inside that method, which I return. Somewhere in cellForRowAtIndexPath I also add UIButton to cell.contentView of that cell. It all works fine, until I select that cell with button in it. The cell changes color to blue (which is ok), uibutton changes its color to blue too. Now, if I click on that UIButton inside selected cell, it just disappears! Wow, that's weird, how do I fix it? I want UIButton inside selected cell to stay, when I click it.

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  • UIImagePickerController Save to Disk then Load to UIImageView

    - by Harley Gagrow
    Hi, I have a UIImagePickerController that saves the image to disk as a png. When I try to load the PNG and set a UIImageView's imageView.image to the file, it is not displaying. Here is my code: (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; NSData *imageData = UIImagePNGRepresentation(image); // Create a file name for the image NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setTimeStyle:NSDateFormatterShortStyle]; [dateFormatter setDateStyle:NSDateFormatterShortStyle]; NSString *imageName = [NSString stringWithFormat:@"photo-%@.png", [dateFormatter stringFromDate:[NSDate date]]]; [dateFormatter release]; // Find the path to the documents directory NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; // Now we get the full path to the file NSString *fullPathToFile = [documentsDirectory stringByAppendingPathComponent:imageName]; // Write out the data. [imageData writeToFile:fullPathToFile atomically:NO]; // Set the managedObject's imageLocation attribute and save the managed object context [self.managedObject setValue:fullPathToFile forKey:@"imageLocation"]; NSError *error = nil; [[self.managedObject managedObjectContext] save:&error]; [self dismissModalViewControllerAnimated:YES]; } Then here is how I try to load it: self.imageView.backgroundColor = [UIColor lightGrayColor]; self.imageView.frame = CGRectMake(10, 10, 72, 72); if ([self.managedObject valueForKey:@"imageLocation"] != nil) { NSLog(@"Trying to load the imageView with: %@", [self.managedObject valueForKey:@"imageLocation"]); UIImage *image = [[UIImage alloc] initWithContentsOfFile:[self.managedObject valueForKey:@"imageLocation"]]; self.imageView.image = image; } else { self.imageView.image = [UIImage imageNamed:@"no_picture_taken.png"]; } I get the message that it's trying to load the imageView in the debugger, but the image is never displayed in the imageView. Can anyone tell me what I've got wrong here? Thanks a bunch.

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  • How to unit test asynchronous APIs?

    - by Ben Clayton
    Hi all. I have installed Google Toolbox for Mac (http://code.google.com/p/google-toolbox-for-mac/) into Xcode and followed the instructions to set up unit testing found here (http://code.google.com/p/google-toolbox-for-mac/wiki/iPhoneUnitTesting). It all works great, and I can test my synchronous methods on all my objects absolutely fine. However, most of the complex APIs I actually want to test return results asynchronously via calling a method on a delegate - for example a call to a file download and update system will return immediately and then run a -fileDownloadDidComplete: method when the file finishes downloading. How would I test this as a unit test? It seems like I'd want to the testDownload function, or at least the test framework to 'wait' for fileDownloadDidComplete: method to run. Any ideas much appreciated!

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  • NSFetchedResultsController Crashes When Navigating from One UITableViewController to Another

    - by wgpubs
    In my core data model I have a Person entity that has a "to many" relationship a Course entity (I also have an inverse "to one" relationship from Course to Person). Now I have a subclassed UITableViewController that uses a NSFetchedResultsController to display Person objects which works fine. I have this set up so that when you click on a Person it publishes another subclassed UITableViewController that uses a NSFetchedController as well to display the Courses associated to the person. PROBLEM: I get this exception whenever I click on the Person and attempt to display the Course UITableViewController ... "Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'keypath name not found in entity <NSSQLEntity Course id=2>'" Any ideas on how to resolve or troubleshoot? The code between the two ViewControllers is almost identical except for the NSFetchedResultsController being configured for "Person" entities in one and "Course" entities in another

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  • UIView rotation, modal view lanscape and portrait, parent fails to render

    - by Ben
    Hi everyone, I've hit a bit of a roadblock with something that I hope that someone in here can help me out with. I'll describe the 'state of play' first, and then what the issue is, so here goes; I have a series of view controllers that are chained together with a Navigation Controller (this works just fine), All of these view controllers support portrait mode only (by design), In one of the view controllers (the 'end' one actually) the user can click a table cell to pop up a modal view controller (using presentModalViewController(...) of course) This modal view controller supports portrait and landscape modes (and this works), When the user clicks the 'Done' button on this modal view controller we pop and pass control back to the parent view controller, however; If the user is in portrait mode when they click 'Done' then the parent displays itself just fine, If the user is in landscape mode when they click 'Done' then the parent displays a totally white, blank screen (that covers the whole screen). It is as if the controller does not know how to render in landscape and just doesn't bother. I'd like to be able to have this parent view render in portrait no matter what the orientation of the phone is when the user clicks the 'Done' button. Various forum posts suggest using the UIDevice method 'setOrientation' (but this is undocumented and will get our app rejected apparently). Another suggestion was to set the 'statusBarOrientation' to portrait in the 'viewWillAppear' method but that had no effect. So I am a bit stuck! Has any encountered anything like this before? If need be I can provide code, if that will help anyone diagnose the problem for me. Thanks in advance! Cheers, Ben

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  • UIDatePicker locale does nothing?

    - by morticae
    I'm creating a UIDatePicker programmatically, and setting its locale with the following code: datePicker.locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"es_ES"] autorelease]; The datepicker still appears in English (or whatever language I've set the phone to). Anyone have any idea why this does nothing, or how to fix it?

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  • Changing email of a contact in address book

    - by David
    Hey guys, I want to change the email of a contact in address book. my code is as follow. but somehow it doesnt work. do you know why? - (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person { CFErrorRef anError = NULL; ABMultiValueRef email = ABMultiValueCreateMutable(kABMultiStringPropertyType); NSString *personEmail = [conversationHistory getReceiver]; ABRecordSetValue(person, kABPersonEmailProperty, email, &anError); CFRelease(email); [self dismissModalViewControllerAnimated:YES]; return NO; }

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  • How do I use sqlite3 PRAGMA user_version in Objective-c?

    - by mobibob
    I am trying to check the user_version of the sqlite DB. I have an admin tool to bump the version, but I don't understand the syntax of the pragma statement. I am expecting to test the value in an if-statement. Can someone provide a code sample? When I embed the pragma statement in my objective-c code, the compiler throws an error.

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  • Animate move and scale of image UIButton

    - by Sam V
    I want it to be animated so I'm using [UIView beginAnimations] I've tried animating using button.imageView.frame (with image set as imageView) but it only animates the position, the image doesn't get scaled down at all. using hateButton.frame (when image is set as backgroundImage), the backgroundImage gets scaled down but it's not animated. How do I animate-scale a UIButton image?

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  • Moving a point along a vector

    - by Chris
    Hello- I have a point defined by x,y and a vector defined by heading, speed. I am attempting to move the point x,y along this vector, at a distance of 'speed'. Below is the code I am currently using: self.x += self.speed * cos(self.heading); self.y += self.speed * sin(self.heading); Heading can be any angle in a full circle - 0 to 2p (0-360 degrees). The problem is the above code: Only moves along the x or y axis when angle is 0-270 for example, when the avatar is facing the top-right corner (45 degrees relative), it moves straight up. Does not move at all when angle is 270-360 heading, speed, X and Y are all doubles, and heading is reported by the user touching a direction-pad in the lower corner. I know the heading is correct because the avatar rotates to the correct direction, it is just the actual movement I am having problems with. Thanks for any help - Chris

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  • Reset or clear the UIView from UILabels

    - by Nicsoft
    Hello, I have created an UIView on which I have a number of labels and I'm also drawing some lines in the same UIView. Sometimes I update the lines that I'm drawing. Now, the problem I am having is that when I update the lines, they get drawn according to my wish. But the labels are overwriting themselves. This shouldn't have been a problem if it wasn't for that the position is changed about 1 pixel and that makes the text go blurry. I don't know how to remove the labels before they are redrawn. I do remove the labels from the superview and add them back when drawRect is called, but the SetNeedDisplay doesn't clear the screen before the graphic is updated, I guess (I think I read that SetNeedsDisplay/drawRect doesn't clear the screen, just updating the content. Couldn't find the text now while searching)? What is the pattern to use here, should I create a retangle with the size of the screen (or the area where the labels are) and fill it with the background colour, or is there any other way to clear or reset the UIView (I don't want to release and create the UIView again). The view is created in IB and associated with a custom UIView. In IB I add some buttons and other static labels. The above labels and graphics is created programatically. Any comments would be helpful! Thanks in advance!

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  • MKMapView refresh after pin moves

    - by slatvick
    A custom AnnotationView is updated with new coordinates. But the problem is that it visually updates only after some manipulations with MKMapView, e.g. zooming or moving. What should I do to manually update visual position on a map? PS. I've tried to change region to current map's region. But it does change zoom. It's strange. [mapView setRegion:[mapView region] animated:YES];

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  • Groupted table view cells not loading.

    - by Tejaswi Yerukalapudi
    Hi, I'm working on creating a grouped table view. The data is being loaded alright, but in the grouped view there are a lot of white empty spaces. They get populated after I scroll up and down a few times. Help? Here's my getCellForRowIndexAtPath method: static NSString *Id= @"CustomDiagChargeID"; CustomCellDiagCharges *cell = (CustomCellDiagCharges *)[tableView dequeueReusableCellWithIdentifier:Id]; if(cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"CustomCellDiagCharges" owner:self options:nil]; for (id oneObject in nib) { if([oneObject isKindOfClass:[CustomCellDiagCharges class]]) cell = (CustomCellDiagCharges *) oneObject; } } NSUInteger row = [indexPath row]; DiagDetails *rowData = [preferences getDiagElementAt:indexPath.section row:row]; cell.code.text = rowData.ICD9Code; cell.desc.text = rowData.ICD9Desc; return cell; Thanks, Teja.

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  • Must I call super when I implement -scrollViewDidScroll: of UIScrollViewDelegate in an UITableView?

    - by mystify
    I made a custom UITableView subclass and implemented this: - (void)scrollViewDidScroll:(UIScrollView *)scrollView { // scrolled... } Now, what I think is that UITableView may also love to get this message for some obvious reasons. However, when I don't forward that to super, for some reason, everything still works fine. Must I forward that guy to super? I mean...it's a delegate method implementation, but as far as I'm aware of, this would still override anything implemented in UITableView, or not? Edit: I see...the delegate could be anyone. Never mind about this. BUT: What I have such a thing in a superclass, and make a subclass. How would I even know that the superclass does implement that method and I must forward it to super?

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  • How to properly use glDiscardFramebufferEXT

    - by Rafael Spring
    This question relates to the OpenGL ES 2.0 Extension EXT_discard_framebuffer. It is unclear to me which cases justify the use of this extension. If I call glDiscardFramebufferEXT() and it puts the specified attachable images in an undefined state this means that either: - I don't care about the content anymore since it has been used with glReadPixels() already, - I don't care about the content anymore since it has been used with glCopyTexSubImage() already, - I shouldn't have made the render in the first place. Clearly, only the 1st two cases make sense or are there other cases in which glDiscardFramebufferEXT() is useful? If yes, which are these cases?

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  • UILabel text doesn't word wrap

    - by iFloh
    Hi, I have a long text string (including \n newline charactersthat I feed into a UILabel for display. The UILabel is dynamically setup to provide sufficient space foor the text. My code looks like this: myText = [NSString stringWithFormat:@"%@some text: %@ \n \n %@", myText, moreText1, moreText2]; NSLog(@"%@", myText); myLabelSize = [vLabelText sizeWithFont:[UIFont fontWithName:@"Helvetica" size:(15.0)] constrainedToSize:cMaxLabelSize lineBreakMode:UILineBreakModeWordWrap]; UILabel *lBody = [[UILabel alloc] initWithFrame:CGRectMake(cFromLeft, vFromTop, vLabelSize.width, vLabelSize.height)]; lBody.font = [UIFont fontWithName:@"Helvetica" size:(15.0)]; lBody.lineBreakMode = UILineBreakModeWordWrap; lBody.textAlignment = UITextAlignmentLeft; lBody.backgroundColor = [UIColor cyanColor]; [myScrollView addSubview:lBody]; lBody.text = vLabelText; My problem is that the text does not wrap, but truncates after the first line. The \n newlines are ignored. any ideas?

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  • How do I make UIWebView show a pdf file from its own app?

    - by Aakburns
    I really need to make a UIWebView open up a specific PDF document that is in my project directory. I can't seem to find any tutorials on this. I found one, but the author was not specific about some of the code. I have to assume it's got to be quite a simple bit of code. Can someone help me code UIWebView to load a PDF? Thanks.

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  • Core Data NSPredicate for relationships.

    - by Mugunth Kumar
    My object graph is simple. I've a feedentry object that stores info about RSS feeds and a relationship called Tag that links to "TagValues" object. Both the relation (to and inverse) are to-many. i.e, a feed can have multiple tags and a tag can be associated to multiple feeds. I referred to http://stackoverflow.com/questions/844162/how-to-do-core-data-queries-through-a-relationship and created a NSFetchRequest. But when fetch data, I get an exception stating, NSInvalidArgumentException unimplemented SQL generation for predicate What should I do? I'm a newbie to core data :( I know I've done something terribly wrong... Please help... Thanks -- NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; // Edit the entity name as appropriate. NSEntityDescription *entity = [NSEntityDescription entityForName:@"FeedEntry" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // Edit the sort key as appropriate. NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"authorname" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSEntityDescription *tagEntity = [NSEntityDescription entityForName:@"TagValues" inManagedObjectContext:self.managedObjectContext]; NSPredicate *tagPredicate = [NSPredicate predicateWithFormat:@"tagName LIKE[c] 'nyt'"]; NSFetchRequest *tagRequest = [[NSFetchRequest alloc] init]; [tagRequest setEntity:tagEntity]; [tagRequest setPredicate:tagPredicate]; NSError *error = nil; NSArray* predicates = [self.managedObjectContext executeFetchRequest:tagRequest error:&error]; TagValues *tv = (TagValues*) [predicates objectAtIndex:0]; NSLog(tv.tagName); // it is nyt here... NSPredicate *predicate = [NSPredicate predicateWithFormat:@"tag IN %@", predicates]; [fetchRequest setPredicate:predicate]; // Edit the section name key path and cache name if appropriate. // nil for section name key path means "no sections". NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"]; aFetchedResultsController.delegate = self; self.fetchedResultsController = aFetchedResultsController; --

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