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  • Tab bar application with UINavigation Controller MOC not being retained.

    - by iamsmug
    I created a tab bar application from the template and added a navigation controller to one of the tabs. I have already created this app from the navigation app template already and is working. The reason I am doing it this way is because I need to add a tab bar and thought it would be easier starting by using the tab bar project template and adding the nav controller to it rather than the other way round. I have copied the data model over from the other project and added the relevant code to where it should be. The problem I am having is passing the moc from the app delegate to the tab with the nav controller on. Here is a snippet from my applicationDidFinishLaunching method in my app delegate: - (void)applicationDidFinishLaunching:(UIApplication *)application { [self createEditableCopyOfDatabaseIfNeeded]; Top_BananaTableViewController *top_BananaTableViewController = (Top_BananaTableViewController *)[navigationController topViewController]; top_BananaTableViewController.managedObjectContext = self.managedObjectContext; // Add the tab bar controller's current view as a subview of the window [window addSubview:tabBarController.view]; [window makeKeyAndVisible]; } Everything seems fine here but when it comes to the fetchedResultsController on my nav controller view it bombs out with: '+entityForName: could not locate an NSManagedObjectModel for entity name 'cards'' When I checked what was set to my managedObjectContext on that view it was null. I don't know why or where it is loosing it's setting. Please help.

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  • UITableView not getting populated with sqlite database column

    - by Ingila Ejaz
    Here's the code of a method I used to populate UITableView with the contents of a column in sqlite database. However, this is giving no errors at run-time but still does not give any data in UITableView. If anyone could help, it'll be highly appreciated. - (void)viewDidLoad{ [super viewDidLoad]; self.title = @"Strings List"; UITableViewCell *cell; NSString *docsDir; NSArray *dirPaths; sqlite3_stmt *statement; // Get the documents directory dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); docsDir = [dirPaths objectAtIndex:0]; // Build the path to the database file databasePath = [[NSString alloc]initWithString: [docsDir stringByAppendingPathComponent:@"strings.sqlite"]]; NSFileManager *filemgr = [NSFileManager defaultManager]; if ([filemgr fileExistsAtPath: databasePath ] == NO) { const char *dbpath = [databasePath UTF8String]; if (sqlite3_open(dbpath, &contactDB) == SQLITE_OK) { NSString * query = @"SELECT string FROM strings"; const char * stmt = [query UTF8String]; if (sqlite3_prepare_v2(contactDB, stmt, -1,&statement, NULL)==SQLITE_OK){ if (sqlite3_step(statement) == SQLITE_ROW) { NSString *string = [[NSString alloc]initWithUTF8String:(const char*)sqlite3_column_text(statement, 0)]; cell.textLabel.text = string; } } else NSLog(@"Failed"); sqlite3_finalize(statement); } sqlite3_close(contactDB); } }

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  • How to push text from one UITextfield to another UITextfield in the next View? And back!?

    - by Chrizzz
    an Hi, I have an UITextField in one view, UITextField A in View A. And I have another in view B, UITextField B in View B. I use a Navigation Controller Bar to switch between the views. The UITextFields are properties and connected Outlets of both views A and B. On my view A there is an "Options"-button which pushes view B. So when you are typing in Textfield A, I would like the same text to appear in Textfield B. When you edit TextField B and you go back to view A (via the "Title View A"-button in de navigation bar), I would like the same text to re-appear in Textfield A. I expected this to be easy. But I can't get it working. I tried: ViewBController *controller = [[ViewBController alloc] initWithNibName:@"ViewBController" bundle:nil]; controller.TextFieldA.text = TextFieldB.text But nothing appeared in view B. And how do I get back? I dont want to use NSUserdefaults because I would have to remove the values also.

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  • Removing a UIView from its superView and expanding its frame to full screen

    - by Magic Bullet Dave
    I have an object that is a subclass of UIView that can be added to a view hierarchy as a subView. I want to be able to remove the UIView from its superView and add it as a subView of the main window and then expand to full screen. Something along the lines of: // Remove from superView and add to mainWindow [self retain]; [self removeFromSuperView]; [self addSubView:mainWindow]; // Animate to full screen [UIView beginAnimations:@"expandToFullScreen" context:nil]; [UIView setAnimationDuration:1.0]; self.frame = [[UIScreen mainScreen] applicationFrame]; [UIView commitAnimations]; [self release]; Firstly am I on the right lines? Secondly, is there an easily way for the object to get a pointer to the mainWindow? Thanks Dave

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  • How can I improve the workflow between developer and designer with Expression Blend?

    - by Amenti
    We use WPF and Expression Blend 4. I'm trying to improve our workflow by tutoring one of our designers to use it for styling and animation. Slowly but surely I get the impression Blend in itself is to technical for the designer in question. I myself use it only occasionally (it's great for Visual States for instance) because a lot of things are easier done in code or not possible at all in Blend alone. It seems a developer with design experience is a lot more productive with it than a sole designer. Are there any good resources or advice as to how I can improve this workflow?

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  • How to add an extra plist property using CMake?

    - by Jesse Beder
    I'm trying to add the item <key>UIStatusBarHidden</key><true/> to my plist that's auto-generated by CMake. For certain keys, it appears there are pre-defined ways to add an item; for example: set(MACOSX_BUNDLE_ICON_FILE ${ICON}) But I can't find a way to add an arbitrary property. I tried using the MACOSX_BUNDLE_INFO_PLIST target property as follows: I'd like the resulting plist to be identical to the old one, except with the new property I want, so I just copied the auto-generated plist and set that as my template. But the plist uses some Xcode variables, which also look like ${foo}, and CMake grumbles about this: Syntax error in cmake code when parsing string <string>com.bedaire.${PRODUCT_NAME:identifier}</string> syntax error, unexpected cal_SYMBOL, expecting } (47) Policy CMP0010 is not set: Bad variable reference syntax is an error. Run "cmake --help-policy CMP0010" for policy details. Use the cmake_policy command to set the policy and suppress this warning. This warning is for project developers. Use -Wno-dev to suppress it. In any case, I'm not even sure that this is the right thing to do. I can't find a good example or any good documentation about this. Ideally, I'd just let CMake generate everything as before, and just add a single extra line. What can I do?

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  • Problem autosizing second view

    - by Ruthy
    Hello, Once a view is called from appdelegate, it is properly loaded but not autosized correctly, on the bottom you see last lines from previous view! On xib file, view mode property is set to scale to fill but I tried others and still happening the same... Thanks for any idea to solve it!

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  • Mixing two wav music files of different size

    - by iphoneDev
    Hi, I want to mix audio files of different size into a one single .wav file. There is a sample through which we can mix files of same size [(http://www.modejong.com/iOS/#ex4 )(Example 4)]. I modified the code to get the mixed file as a .wav file. But I am not able to understand that how to modify this code for unequal sized files. If someone can help me out with some code snippet,i'll be really thankful.

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  • probelem with NSTimer

    - by zp26
    Hi I have a problem with a NSTimer I recived a "SIGABRT" error and "[NSCFTimer intValue]: unrecognized selector sent to instance " These is my code: -(void)detectionMove:(NSNumber*)arrayIndex{ static BOOL notFind = FALSE; static int countVariable = 0; static int countRilevamenti = 0; notFind = FALSE; for(int i = countVariable+1; i<[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]count]; i++){ if(!notFind){ if((actualAccelerometerX+sensibilityMovement) >= [[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]objectAtIndex:i]valueX] && (actualAccelerometerX-sensibilityMovement) <= [[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]objectAtIndex:i]valueX] && (actualAccelerometerY+sensibilityMovement) >= [[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]objectAtIndex:i]valueY] && (actualAccelerometerY-sensibilityMovement) <= [[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]objectAtIndex:i]valueY] && (actualAccelerometerZ+sensibilityMovement) >= [[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]objectAtIndex:i]valueZ] && (actualAccelerometerZ-sensibilityMovement) <= [[[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]objectAtIndex:i]valueZ]) { countVariable = i; notFind = TRUE; countRilevamenti++; } } } if(!notFind) return; else if(countVariable+1 == [[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]count]){ if(countRilevamenti + tollerance >= [[[[sharedController arrayMovement]objectAtIndex:[arrayIndex intValue]] arrayPositionMove]count]) movementDetected = [arrayIndex intValue]; else NSLog(@"troppo veloce"); countVariable = 0; notFind = FALSE; countRilevamenti = 0; return; } [NSTimer scheduledTimerWithTimeInterval:timeToCatch target:self selector:@selector(detectionMove:) userInfo:(NSNumber*)arrayIndex repeats:NO]; }

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  • How can I change my career from windows server admin to software developer?

    - by hyder
    well am an Engineering Graduate in Telecommunication Engineering... I got into Server Support job soon finishing my college ,as at that time it was a recession period ... I have total exp of 2 years in windows server support but due to multiple shifts environment I want to change my profile into software line. Please suggest what would be best for me to take next step.. what exactly course\certification I should do to change my profile as software Developer. Am interested in making my career in software ..please advise as I am in big confusion and not able to work with full satisfaction!! Thank you....

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  • how to pass a string value from one controller to another

    - by shreedevi
    I have a login controller ,and after the successful login i want to pass some string value to the menu page.however it does not work.the application crashes. I have tried possible suggesstion of Ihuk and SAM from the link below http://stackoverflow.com/questions/1685964/how-to-pass-a-string-value-from-one-view-controller-to-another-view-controller loginController.h: #import <UIKit/UIKit.h> @class RootViewController; @class Menu; @interface LoginController : UIViewController { UIButton *login_Button; UITextField *username_TextField; UITextField *password_TextField; RootViewController *mc1; UINavigationController *navigationController; Menu *mv1; } @property(nonatomic,retain) IBOutlet UIButton *login_Button; @property(nonatomic,retain) IBOutlet UITextField *username_TextField; @property(nonatomic,retain) IBOutlet UITextField *password_TextField; @property(nonatomic,retain) RootViewController *mc1; @property (nonatomic, retain) IBOutlet UINavigationController *navigationController; @property(nonatomic,retain)Menu *mv1; - (IBAction)Login_Method:(id)sender; -(id)initWithUserName:(NSString *)name ; @end loginController.m #import "LoginController.h" #import "Menu.h" #import "ViewController.h" #import "RootViewController.h" @implementation LoginController @synthesize mc1,mv1; @synthesize login_Button,username_TextField,password_TextField; @synthesize navigationController; // Implement viewDidLoad to do additional setup after // loading the view, typically from a nib. - (void)viewDidLoad { if (![self.navigationController isNavigationBarHidden]) [self.navigationController setNavigationBarHidden:YES animated:NO]; //[self presentModalViewController:navigationController animated:YES]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (IBAction)Login_Method:(id)sender { Menu *mv2 = [[Menu alloc] initWithUserName:@"Menu" bundle:nil]; //mv2.l1.text=@"aa"; //i tried this, but not work,so created initWithUserName self.mv1=mv2; [self presentModalViewController:mv1 animated:YES]; // [RootViewController release]; } -(id)initWithUserName:(NSString *)name { self = [super init]; if (nil == self) { return nil; } // display or store login info somewhere [mv1.l1 setText:name]; return self; } -(BOOL)textFieldShouldReturn:(UITextField *)theTextField { [theTextField resignFirstResponder]; return YES; } - (void)dealloc { [username_TextField release]; [password_TextField release]; [super dealloc]; } @end Menu.h #import <UIKit/UIKit.h> @class Menu; @interface Menu : UIViewController { UILabel *l1; UIButton *AccountSummary_Button; UIButton *PayOffQuote_Button; UIButton *PayBill_Button; UIButton *Logout_Button; UINavigationController *nv1; } @property(nonatomic,retain) IBOutlet UILabel *l1; @property(nonatomic,retain) IBOutlet UIButton *AccountSummary_Button; @property(nonatomic,retain) IBOutlet UIButton *PayOffQuote_Button; @property(nonatomic,retain) IBOutlet UIButton *PayBill_Button; @property(nonatomic,retain) IBOutlet UIButton *Logout_Button; @property (nonatomic, retain) IBOutlet UINavigationController *nv1; -(IBAction)ViewAccountSummary_method:(id)sender; -(IBAction)ViewPayOffQuote_method:(id)sender; -(IBAction)ViewPayBill_method:(id)sender; -(IBAction)Logout_method:(id)sender; @end Menu.m

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  • Core Data Predicate To Many

    - by Vikings
    I have a core data model that has a one to many relationship, there is a category, and it can contain many subcategories. Category <---- Subcategory I am trying to perform a fetch that checks if a particular Category contains a Subcategory with a particular name. Let's say I have two categories below, I want to fetch to see if there are any subcategories name "Apple" in the Category named "Fruits". Vetegables - Carrot - Lettuce Fruits - Apple - Orange - Pear Code: - (SubCategory *)searchForSubCategoryWithName:(NSString *)subCategory inCategory:(Category *)category { NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"SubCategory" inManagedObjectContext:self.beer.managedObjectContext]; [fetchRequest setEntity:entity]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"name == [c] %@", subCategory]; [fetchRequest setPredicate:predicate]; NSError *error; NSArray *fetchedObjects = [self.beer.managedObjectContext executeFetchRequest:fetchRequest error:&error]; if (fetchedObjects != nil && fetchedObjects.count > 0) { return [fetchedObjects objectAtIndex:0]; } else { return nil; } }

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  • Is it normal for a software developer to have lots of issues after product went live?

    - by juniordeveloper87
    In recent months, our product (which went live probably 9 months ago) experience an increase in the number of users using it. We faced lots of queries, problems, and complaints from users. Sadly, it seems that a lot of the issues seem to be coming from a module that I have been working on. At times, I wonder if I am incompetent, or is this pretty normal in software development, that bugs are found especially during the initial stages of a software development livecycle after it goes live? I wonder why some issues we faced now are not foreseen by me or the team during development phase. I have been working as a software developer for close to 2 years now. Hope to get your opinions, feedback, advices! Thanks!

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  • Regarding orientation

    - by muhammadhanifas
    Anyone please answer for my requirement Im using my application in this order, first page = UIViewController, secondpage = UITabBarController with 4 tabs, I need landscape on the orientation on the second tabpage(UIViewController) ? not working.. Note : When using UITabBarController its working perfect but when I add the UIViewController for my first page, the orientation not working...? anyone who knows the solution plz answer

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  • Refresh displayed Camera Roll contents

    - by zoul
    Hello! I use the UIImagePickerController class to display the Camera Roll contents. I have a second thread that saves an image to the Camera Roll. When the images has finished saving, it does not appear in the Camera Roll that’s open. Is there a way to force the Camera Roll to refresh? (Other than dismissing and displaying it again.)

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  • How can I remove the present view when I have added more than one subView ?

    - by srikanth rongali
    How can I remove the present view when I touched the close button. I did [self.view removeFromSuperView] when I added only one subView. It worked. But, I have now added another subView to the previous subView. I need to to get the parent view . How can I do it. My code of adding the subView is here. When I did the following only one view is removed. //FirstViewController: UIViewController -(void)libraryFunction:(id)sender { LibraryController *libraryController = [[LibraryController alloc]init]; [self.view addSubview:libraryController.view]; } //LibraryController: UIViewController -(void)viewDidLoad{ RootViewController *rootViewController = [[RootViewController alloc] initWithStyle:UITableViewStylePlain]; UINavigationController *aNavigationController = [[UINavigationController alloc] initWithRootViewController:rootViewController]; self.navController = aNavigationController; [aNavigationController release]; [rootViewController release]; [self.view addSubview:navController.view]; } //RootViewController: UITableViewController - (void)viewDidLoad { [super viewDidLoad]; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleBordered target:self action:@selector(close:)]; } -(void)close:(id)sender { [self.view removeFromSuperview]; } Thank You.

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  • How do i set and get UIButtons' tag?

    - by Sam Jarman
    How do i set a tag for a button programmatically? I later want to compare to tags for a conclusion ive tried this -(IBAction)buttonPressed:(id)sender{ NSLog(@"%d", [sender tag]); } but that just crashes the app.... :( any other ideas? Cheers Guys Sam

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  • Animate cell within a table

    - by amok
    That's what I have: - A table with a few rows, one column only What I am trying to accomplish: Double tap on any row should produce an animation of the cell. The animation that I want is a flip vertically of the row. I am displaying some data in each row and what I want to do is displaying the source of the data "on the back" of the row, so to speak. Is it possible? If yes, how?

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  • save and play recorded sound

    - by blacksheep
    i'd like to save and play again this recorded sounds: @interface Recorder : NSObject { NSMutableArray *times; NSMutableArray *samples; } @end @implementation Recorder – (id) init { [super init]; times = [[NSMutableArray alloc] init]; samples = [[NSMutableArray alloc] init]; return self; } – (void) recordSound: (id) someSound { CFAbsoluteTime now = CFAbsoluteTimeGetCurrent(); NSNumber *wrappedTime = [NSNumber numberWithDouble:now]; [times addObject:wrappedTime]; [samples addObject:someSound]; } @end thanx blacksheep

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  • Custom UITableView headerView disappears after memory warning

    - by psychotik
    I have a UITableViewController. I create a custom headerView for it's tableView in the loadView method like so: (void)loadView { [super loadView]; UIView* containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width, height * 2 )]; containerView.tag = 'cont'; containerView.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin; UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(padding, height, width, height); ... //configure UIButton and events UIImageView* imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image.png"] highlightedImage:[UIImage imageNamed:@"highlight.png"]]; imageView.frame = CGRectMake(0, 0, width, height ); ... //configure UIImageView [containerView addSubview:button]; [containerView addSubview:imageView]; self.tableView.tableHeaderView = containerView; [imageView release]; [containerView release]; } None of the other methods (viewDidLoad/Unload, etc) are overloaded. This controller is hosted in a tab. When I switch to another tab and simulate a memory warning, and then come back to this tab, my UITableView is missing my custon header. All the rows/section are visible as I would expect. Putting a BP in the loadView code above, I see it being invoked when I switch back to the tab after the memory warning, and yet I can't actually see the header. Any ideas about what I'm missing here? EDIT: This happens on the device and the simulator. On the device, I just let a memory warning occur by opening a bunch of different apps while mine is in the background.

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