logo
down
shadow

Use existing string as valueForKey value


Use existing string as valueForKey value

By : Ali Ezzat
Date : November 29 2020, 09:01 AM
To fix this issue I am trying to use a string ("levelNumberString") as a valueForKey in an NSDictionary. When I use a string like @"1", it all works perfectly, but when I decide to swap out that kind of string for levelNumberString, it gives me a SIGABRT error. The integer levelInt is an integer that decides what level the app is at. When the view is loaded, it is worth 1, and its value is taken up by the "levelNumberString" string. , The problem is over here @"i%" it should be @"%i"
code :
NSString *levelNumberString = [NSString stringWithFormat:@"%i", levelInt];
NSDictionary *packDict = [NSDictionary dictionaryWithDictionary:[rootDict valueForKey:levelNumberString]];


Share : facebook icon twitter icon
Retrieve `valueForKey` as string

Retrieve `valueForKey` as string


By : Mizanur Rahman Shami
Date : March 29 2020, 07:55 AM
Any of those help valueForKey when sent to an array returns an array of all the values with that key in the array -- it may only be one value, but it will be in an array. If you log [currentPic class], I'm guessing that it will be an array, so you need to send objectAtIndex to it to get a single string
valueForKey returning nil

valueForKey returning nil


By : user6453344
Date : March 29 2020, 07:55 AM
will help you NSArray and NSDictionary cannot contain nil values. NSNULL was created specifically as a placeholder for nil. It can be put into collection classes, and only takes up space.
NSNull defines a singleton object, which means that there's only ever a single instance of NSNull but it can be used in as many places as you wish.
code :
if (current != nil || [current valueForKey:@"name"] != [NSNull null] )
{
      NSLog(@"here %@", [current valueForKey:@"name"]);
}
here John
here Sam
here Billy
valueForKey does not return the right value

valueForKey does not return the right value


By : Ritva
Date : March 29 2020, 07:55 AM
around this issue [stvc.selectedItems valueForKey:@"Order"] returns a (pointer to an) NSNumber object. If you just cast that to a boolean scalar, the result will always be "true", because the pointer is not NULL.
You have to use
code :
... ascending:[[stvc.selectedItems valueForKey:@"Order"] boolValue] ...
stvc.selectedItems[@"Order"] = @NO;

NSSortDescriptor *mySortDesc = [[NSSortDescriptor alloc] initWithKey:@"firstName"
        ascending:[stvc.selectedItems[@"Order"] boolValue]];
mod_rewrite existing directories to index.php adds query string but works right for non-existing

mod_rewrite existing directories to index.php adds query string but works right for non-existing


By : Amar
Date : March 29 2020, 07:55 AM
I wish this help you Okay, I believe I have figured out the issue. Because the URL before rewriting was resolving to a directory and because I was omitting the trailing /, apache was automatically sending a 301 Moved Permanently redirect with the trailing / added on. I guess due to the order apache does things, the redirect was also picking up the rewrite and instead of 301 redirecting from http:///img to /img/ it was 301 redirecting to /img/?_url=img.
I finally fixed this (I think), by adding in DirectorySlash off to my vhost.
How to get the valueForKey?

How to get the valueForKey?


By : youssef salah
Date : March 29 2020, 07:55 AM
help you fix your problem I am getting the following response from the json after parsing like this: Please click the image , Your Array is actually not an Array but Dictionary.
code :
print("JSON object  s: \(cashPointOperatingDays[0])")
        guard let firstDict = cashPointOperatingDays[0] as? [String: String] else {
            return
        }
        print("First Dictionary: \(firstDict["operatingDay"])") //error showing line
Related Posts Related Posts :
  • NSURLSession methods don't call
  • Issue animating with CATransform3DRotate
  • Why does Xcode's unit tests always pass?
  • How can I change SKLabelNodes's font size regarding device screen size?
  • About memory management in Objective-C or iOS
  • How can I show the tab bar controller when I unwind from a view controller to another view controller that's a child of
  • IOS : How to get song id using echonest Api
  • Cocoapod: ios app and osx test dependencies
  • Best way to use iCloud Documents Storage
  • How to add a Contact in Contact using iPhone Native UI
  • 3D Touch Peek Swipe Like Mail
  • Adding subview to scrollview
  • How to set border color of multiple UIView in tableViewCell when the colors are from an NSArray
  • IOS Swift finishing a function when a button is pressed
  • Convert NSString to NSDate is not working
  • Xcode 7.1 with iOS 9.2 Error (Could not find Developer Disk image)
  • What will happen by calling [super alloc] in a subclass' factory method?
  • Why there is no warning while casting with viewWithTag?
  • Can I start my iOS app on the 2nd View of My Storyboard and use the Unwind Segue?
  • How to resize a UIImageView and force relayout of the parent UITableViewCell
  • Logically determine shortest path
  • autolayout problems by code?
  • Using componentsSeparatedByString with more than one separator string?
  • iOS : application crashing for null values while displaying scrolling tableview
  • How to Programmatically Segue to a New ViewController in a New Storyboard
  • Interpolation in texture3D in OpenGL ES 3.0 on iOS
  • How do I remove new line characters from a string?
  • Grouped UITableView from array of objects
  • How to write this answer in Swift? popToRoot on one tab when the user is in a different tab?
  • Collection View Loads Choppy
  • How to trigger certain segue for a selected nib cell in didSelectRowAtIndexPath
  • Filter users based on their specified age ranges. Parse and Swift
  • Audio queue recording error: AudioConverterNew from AudioQueueNew returned 'fmt?'
  • no registered handler for URL scheme itms-apps - Rate button Simulator
  • Escaping parameters in iOS Apple App Store Download Link
  • Resizing UISearchBar in UINavigationBar titleView doesn't work
  • Button that will generate a random background color - Xcode - Swift
  • Subclassing SCNScene and SceneKit Editor
  • iOS: get result of 'currentUserNotificationSettings' alert dialog
  • Delete user in iOS using Parse login
  • iPad Pro reporting wrong screen scale
  • Solving math using DDMathParser in Objective-C
  • Why does Acknowledgements.plist from CocoaPods look messed up on iOS 9 and what can you do about it?
  • reloadRowsAtIndexPaths interfere with deleteRowsAtIndexPaths
  • How to do core data fetch predicate for NSDate in swift? i want to filter it by months
  • Creating a centered View with Labels
  • Singleton Created, Errors upon use in ViewController?
  • Error using performSegueWithIdentifier Swift 2.1
  • I've created a singleton class, how can I call it from my ViewControllers?
  • Alamofire won't build in empty Swift project using Cocoapods
  • Set first annotation in annotations
  • Swift 2.1 New Way to Initialize String Array?
  • Swift - time based UUID - how to sort them
  • Swift: How can I have a listener that reports when connection is lost and when it comes back?
  • Xcode fails to generate Adhoc IPA
  • Apple Watch - how do I schedule a complication update to be in synch with Push notification?
  • UICollectionView will not display cells in custom popupview
  • iOS: Repeat animation block until an event completes
  • Set NavigationBar for Destination ViewController Only
  • ios9 Image Download
  • shadow
    Privacy Policy - Terms - Contact Us © animezone.co