osx,swift,cocoa,sorting,nstableview , NSTableView - how to get automatic and manual sorting working together?


NSTableView - how to get automatic and manual sorting working together?

Question:

Tag: osx,swift,cocoa,sorting,nstableview

I have a NSTableView in MyViewController and have an array controller bound to it. I want to be able to sort it by clicking the table column headers and it should also auto-sort. So for auto-sort I set the Sort Descriptors binding of my array controller in IB as following:

Bind to: MyViewController
Model Key Path: customSortDescriptors

In the MyViewController class I've added:

var customSortDescriptors:[NSSortDescriptor] {
    let sd = NSSortDescriptor(key: "string", ascending: true, selector: "localizedStandardCompare:");
    return [sd]
}

And for the related table column in IB I've set:

Sort Key: string
Selector: caseInsensitiveCompare:

This works OK until I click on the table column header upon where I get an error thrown:

Error setting value for key path customSortDescriptors of object NSAutounbinder: 0x60000005e060 - a nonretaining proxy for MyApp.MyViewController: 0x6000000e6600 (from bound object NSArrayController: 0x6000001c0b40[entity: GeneratedData, number of selected objects: 0]): [MyApp.MyViewController 0x6000000e6600 setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key customSortDescriptors.

I'm not sure why I get this error. Can somebody tell me what is wrong? Why would MyViewController not be key value coding-compliant? Aren't NSViews and NSViewControllers compliant by default?

Besides that the sorting works without problems but I get the error thrown in Xcode and want to eliminate that.


Answer:

I will be damned but the reason for the error is obviously that the property is read-only. So adding a setter, or better yet, change the code to simply:

var customSortDescriptors = [NSSortDescriptor(key: "string", ascending: true, selector: "localizedStandardCompare:")];

fixed the error and both, automatic and manual sorting works.


Related:


coordinate deprecated as of iOS 7


ios,iphone,swift
I am trying to grab the latitude and longitude of a users location. I have a code which worked prior to deprecation, and I cannot figure out how to fix it. The error is on the coordinate section of latestLocation.coordinate.latitude and latestLocation.coordinate.longitude, and the error states: 'coordinate' is unavailable: APIs...

Change the “about this” window on mac app


java,osx,deployment
On Macs, there's a default menu at the top for basic application handling functions: I've made an application using Java for my Grade 10 final project, (and I'm quite convinced that it's better than Microsoft Paint) and I decided to package it. Using Eclipse, I exported it as a Mac...

Obj-C Instance method returning a instanceType called from Swift - Function produces expected type 'UIImage!' error


ios,objective-c,swift
I have this instance method in an existing Obj-C UIImage category: - (UIImage *)applyDarkEffect; I'm trying to call it from a Swift file like so: self.backgroundImageView.image = UIImage.applyDarkEffect(image) But get this compiler error: Function produces expected type 'UIImage!'; did you mean to call it with '()'? ...

How can I fix crash when tap to select row after scrolling the tableview?


ios,xcode,swift,uitableview,tableviewcell
I have a table view like this: when the user tap one row, I want uncheck the last row and check the selected row. So I wrote my code like this: (for example my lastselected = 0) func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) { var lastIndexPath:NSIndexPath = NSIndexPath(forRow: lastSelected, inSection:...

Parse JSON output from AlamoFire


json,swift,nsurlrequest
I am using the latest Alamofire to manage a GET http request to my server. I am using the following to GET and parse the JSON: Alamofire.request(.GET, "*******") .responseJSON {(request, response, JSON, error) in if let statusesArray = JSON as? NSArray{ if let aStatus = statusesArray[0] as? NSDictionary{ //OUTPUT SHOWN...

How to create UITableViewCells with complex content in order to keep scrolling fluent


ios,swift,uitableview,cocoa-touch,ios-charts
I am working on a project where I have a table view which contains a number of cells with pretty complex content. It will be between usually not more than two, but in exceptions up to - lets say - 30 of them. Each of these complex cells contain a...

Build error after I localized Info.plist


ios,objective-c,xcode,swift,localization
I localized Info.plist : And I got this build error : error: could not read data from '/Users/cherif/Apps/Wesh/Info.plist': The file “Info.plist” couldn’t be opened because there is no such file. Actually there are now two Info.plist files : fr.lproj/Info.plist Base.lproj/Info.plist How to localize the Info.plist path ?...

PFUser not unwrapped - swift


ios,xcode,swift
I'm beginning to learn swift with parse and i've run into this error: "Value of optional type 'PFUser?' not unwrapped; did you mean to use '!' or '?' I can't seem to get it to work... PFFacebookUtils.logInWithPermissions(["public_profile", "user_about_me", "user_birthday"], block: { user, error in if user == nil { println("the...

How to get time difference based on GMT on Swift


ios,swift
I am trying to get a time difference based on a GMT time. where at the end of everyday the timer resets to zero. I've tried the below code on the Xcode simulator and every time i change the time on the mac, the difference also changes. how can i...

iOS 8 Swift CS193P Calculator Bug Switch Operation


ios,swift
I just started learning Swift with Stanford tutorial. I have Xcode 6.3.2. I'm getting a bug at a switch operation and can't understand how to solve it. I attached a screenshot as well @IBAction func operate(sender: UIButton) { let operation = sender.currentTitle! if userIsInTheMiddleOfTypingANumber{ enter() } switch operation{ case "➕":...

Extra table cells when UITableViewController is embedded into a Container in a UIViewController


ios,swift,uitableview,uiviewcontroller
In order to customize a table view and add some additional controls to it, I've embedded a UTTableViewController into a Container View and placed that container View into a UIViewController. I've followed the instructions I found here: Embedding TableView in TableViewController into another view TableView is configured with four static...

iOS 9 not opening Instagram app with URL SCHEME


ios,swift,swift2,ios9
The following URL opens on iOS 8.3 and lower, but it does not work and iOS 9 let instagramURL = NSURL(string: "instagram://app") Why won't the URL open?...

How to code a generic Swift class which stores a Generator of the same type


swift,generics
I'm trying to write a class which handles objects of a homogenous type, and I'd like to feed in those objects using an (otherwise arbitrary) Generator of the same type. In essence this: class MyGenericClass<T> { var source : GeneratorType var itemsProcessed = [ T ]() init(source: GeneratorType) { self.source...

Read plist inside ~/Library/Preferences/


objective-c,xcode,osx
I'm trying to access in ~/Library/Preferences/ but my code doesn't work. NSString *resPath = @"~/Library/Preferences/"; NSError *error = nil; NSArray *filenames = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:resPath error:&error]; if (!error) { for (NSString * filename in filenames) { NSLog(@"%@", filename); } } Maybe I should ask for some permission.. Any idea?...

Difference between stringByAppendingString and appendString in ios


ios,objective-c,swift,nsstring,nsmutablestring
What is the difference between stringByAppendingString and appendString? If NSString is not mutable then how could it append string?

It is possible to continuously update the UILabel text as user enter value in UITextField in iOS


ios,objective-c,swift,uitextfield,uilabel
In my application i have one UILabel and UITextField. Initially UILabel text in nil. As soon as user enter some text in UITextField my UILabel text also Update. Let say When user enter A in UITextField my UILabel immediately show A, B in UITextField my UILabel show B and so...

IOS rightBarButtonItem on UINavigationController in swift


ios,swift,uibarbuttonitem,uinavigationitem
I'm trying to put a rightBarButtonItem on a second view controller of an UINavigationViewController stack. I'm creating and setting the button in viewDidLoad of the view controller that I want to show. My actual code looks like this: override func viewDidLoad() { super.viewDidLoad() menu_button_ = UIBarButtonItem(image: UIImage(named: "menu"), style: UIBarButtonItemStyle.Plain...

Implementing Applovin Ads with Swift & SpriteKit


ios,swift,applovin
I would like some help with integrating interstitial ads from Applovin using Swift. Currently, I have managed to successfully integrate the SDK and initialize it using ALSdk.initializeSdk(). I have a folder in my project directory called Applovin which contains: headers folder (with all the .h files inside) and libApplovinSdk.a. I...

How can I show ONLY the date (and not the time) using NSDateFormatter?


ios,iphone,swift
I think the question is pretty straightforward. I need only the date to appear, and not the time. Couldn't find anything for Swift, so my code is here: cell.date.text = NSDateFormatter.localizedStringFromDate(dates[indexPath.row], dateStyle: .ShortStyle, timeStyle: .ShortStyle) ...

AppleScript (or swift) add hours to time


swift,date,applescript
I'm trying to add 8Hours to a date (from the clipboard) set date1 to the clipboard set newdate to date1 + (8 * hours) display dialog "Purchases were downloaded at " & newdate buttons {"OK"} default button 1 But this is not working as expected, I'm having the error Can’t...

Detect UIImageView Touch in Swift


ios,swift,uiimageview
How would you detect and run an action when a UIImageView is touched? This is the code that I have so far: override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) { var touch: UITouch = UITouch() if touch.view == profileImage { println("image touched") } } ...

How to disable the Copy/Hide feature in UIImagePickerController when long pressing a image …?


ios,swift,ios8,uiimagepickercontroller,ios8.3
- Actually am using UIImagePickerController for my usecase,and if i long press any picture ,it shows Copy/Hide option (as shown in the sample image) - I dont want the Copy/Hide feature. Guide me with some suggestions if u too have encountered :)... Thanks in advance...iOS Geeks...PLZ refer my code snippet...

Swift Range on the fly 1…12.contains(1) Cannot invoke 'contains' with (Int)


swift,range
Is is not possible to create a range and call its contains method like this: 1...12.contains(1) When I create a var range = 1...12 and print its dynamicType I get a Swift.Range<Swift.Int>, so I'm guessing is not a type mismatch problem, or is it?...

How to do a “show (e.g Push)” segue programatically without animation?


ios,objective-c,swift,storyboard,segue
How can I do a "show (e.g Push)" segue programatically without animation? None of the solutions I've found works the same way as the one in storyboard.

Beacon / IOS CLLocationManager get current region


ios,swift,cllocationmanager,ibeacon
I'm doing a program who is looking for beacon, I implemented CLLocationManager and my apps works except one point. I'm calling startMonitoringForRegion() in order to get the didEnterRegion/didExitRegion callback. Inside these function I'm doing startRangingBeaconsInRegion()/stopRangingBeaconsInRegion() in order to get precise information when the user is in the beacon area. My...

How to save text field value in uicollectionviewcell


swift,uitextfield,uicollectionviewcell
hi i have text field in uicollectionviewcell so what i need it example : when i edit text filed value in row 5 and i done it and go to text filed in row 20 to edit value the collectionview has reloaded and forget value in row 5, so i...

Get NSString from NSMutableArray on Swift


swift,nsmutablearray
How can I get NSString from NSMutableArray created with NSStrings in a for loop? I want to store in one NSString, all elements of NSMutableArray. This is my code: class Persona: NSObject { var edad: Int var altura: Double var nombre: NSString var apellido: NSString var cualidades: NSMutableArray init(edad:Int, altura:Double,...

What is the best practice add video background view?


ios,objective-c,swift,video
I want to add background view with video (or gif) like in app "Uber" I'd like to use video background view for a long time in my app. And I want to know the answers to these questions: What of them will consume less battery energy Can I use it...

Swift Singleton not Working


swift,singleton
Trying to get a Singleton class going in Swift. I'm not getting any errors, but its also just plain not working properly. Here's the code: // The Singleton class: class DataWarehouse { class var sharedData:DataWarehouse { struct Static { static var onceToken : dispatch_once_t = 0 static var instance :...

Swift timer in milliseconds


xcode,swift
I want to change the timer every millisecond but it doesnt work as expected. NSTimer.scheduledTimerWithTimeInterval(0.001, target: self, selector: Selector("advanceTimer:"), userInfo: nil, repeats: true); func advanceTimer(timer: NSTimer){ self.time += 0.001; let milliseconds = self.time * 100; let remaingMilliseconds = Int((milliseconds % 1000) / 10); let seconds = Int((milliseconds / 1000) %...

What's the equivalent of finally in Swift


swift,try-catch-finally
I try to use the error handling modeling in Swift2. do { try NSFileManager.defaultManager().removeItemAtPath("path") } catch { // ... } finally { // compiler error. } But it seems that there is no finally keyword out there.How can I achieve try-catch-finally pattern in Swift.Any help is welcome....

Cannot invoke method with argument list of type KeyType in Swift


swift,generics
I am working on custom message dispatcher in Swift. I want to have dispatcher which can: dispatch enums as events or whatever what is Hashable. Every object which implements one protocol might be added as listeners Here is the code: import Foundation protocol EventDispatcherProtocol: class { typealias T: Hashable func...

Use Unix Executable File to Run Shell Script and MPKG File


osx,shell,unix
I have 2 shell scripts and 2 mpkg installer, I am trying to use an unix excitable file to run them all. here is the script I have, but it always has error message "No such file or directory" ? #!/bin/sh # Find the absolute script current path path=$( cd...

iOS: What is the callback when tapped on the empty space between keyboard and search bar to dismiss the keyboard when search bar is active


ios,objective-c,swift
I have SearchController for my TableViewController. I wanted to perform some actions when user taps on the empty space on the screen (between the keyboard and search bar) to dismisses the keyboard and displays the main Table View.

create a popup window with just a textview/string and a button SWIFT ios 8


iphone,swift,ios8,popup,xcode6
I am very new to ios 8 and swift but I have not found a way to make a simple popup window whenever a button is pushed. I payed for tutorials and they still don't cover it. All i would like is for when the user pushes a button (the...

Do I have to use both of these methods?


ios,swift,uitableview
When I expand a UITableViewCell on touch, I know I have to update the UITableView. Right now I'm doing: tableView.beginUpdates() tableView.reloadRowsAtIndexPaths(indexPaths, withRowAnimation: UITableViewRowAnimation.Automatic) tableView.endUpdates() Do I need to use both updates methods as well as the reload method? Or is it just one or the other? I'm not completely understanding,...

How to add checkbox to uicollectionview in swift


swift,checkbox,uicollectionviewcell
some time ago someone already asked this question and a few answers were given but i didn't really understand any of them. So i was wondering if anyone could please write an easy to understand tutorial on how to do the things shown on the image below: http://i.imgur.com/BzIBOkH.jpg?1 I would...

looping variable in swift


swift,for-loop,uiimage
i want to change this variable become looping in swift: var image1 = UIImage(named: "image1") var image2 = UIImage(named: "image2") var image3 = UIImage(named: "image3") var image4 = UIImage(named: "image4") var image5 = UIImage(named: "image5") var image6 = UIImage(named: "image6") var image7 = UIImage(named: "image7") images.append(image1!) images.append(image2!) images.append(image3!) images.append(image4!) images.append(image5!)...

Parse and Swift Geopoints not saving


swift,parse.com,geopoints
I have tried everything. No matter what my Geopoints will not save when using an actual device with xcode or using the simulator. if signUpError == nil { PFGeoPoint.geoPointForCurrentLocationInBackground { (geoPoint: PFGeoPoint?, error: NSError?) -> Void in if error == nil { PFUser.currentUser()!.setValue(geoPoint, forKey: "location") } } I am not...

Omitting the return type in Swift closures


swift
I'm working through one of the examples at the very handy and colourfully named site here, specifically : func applyMutliplication(value: Int, multFunction: Int -> Int) -> Int { return multFunction(value) } applyMutliplication(2, {value in value * 3 }) Notice that the closure given when calling applyMultiplication() does not specify a...

UITapGestureRecognizer sender is the gesture, not the ui object


ios,xcode,swift,uigesturerecognizer
I've got a button called and I gave it a UIGestureRecognizer so that an IBAction is only run when the button is long pressed. You do this by adding a UILongPressGestureRecognizer to the button iteself. Then you control drag that gesture recognizer to a function like this: @IBAction func handleGesture(sender:...

iOS Keyboard “Done” button load action


ios,swift,cocoa-touch
I'm trying to get "Done" button on to load an action, preferably the action that I have for my button. Here's the UITextField declaration let someTextField = UITextField() Trying to add a target to the textField someTextField.addTarget(self, action: "loginActionButton", forControlEvents: .EditingDidEndOnExit) ...

MFMessageComposeViewControllerDelegate not being called


ios,swift
I am trying to implement a class that will present a MFMessageComposeViewController from the AppDelegate. The class declaration looks like this: import UIKit import MessageUI class MyClass: NSObject, MFMessageComposeViewControllerDelegate { func sendAMessage() { // message view controller let messageVC = MFMessageComposeViewController() messageVC.body = "Oh hai!" messageVC.recipients = ["8675309"] // set...

Can't figure out coder aDecoder: NSCoder


ios,xcode,swift
I'm making an app for archiving books, I'm at the point of hooking up a button to save the data, but I can't get past the initialisation. Here is the error Xcode is giving me : Property 'self.bookStore' not initialised at super.init call. And here is my code : import...

Factorials in Swift


swift,factorial
I need a good factorial function. The one I have written here works entirely, except when n gets far too large. This is for a calculator app, and I can return 0 / 0 for values that cannot be factorialed because I have an error checker that will declare that...

Characters and Strings in Swift


ios,string,swift,unicode,character
Reading the documentation and this answer, I see that I can initialize a Unicode character in either of the following ways: let narrowNonBreakingSpace: Character = "\u{202f}" let narrowNonBreakingSpace = "\u{202f}" As I understand, the second one would actually be a String. And unlike Java, both of them use double quotes...

iOS Swift: Sound not playing on iPhone Simulator


ios,iphone,swift,audio,ios-simulator
In my iOS Swift application, and i am trying to play sound on click of a button. func playSound() { var audioPlayer = AVAudioPlayer() let soundURL = NSBundle.mainBundle().URLForResource("doorbell", withExtension: "mp3") audioPlayer = AVAudioPlayer(contentsOfURL: soundURL, error: nil) audioPlayer.play() } I am running the application in iOS iPhone Simulator. I have doorbell.mp3...

Unexpectedly found nil while unwrapping an Optional value - Plist


ios,swift,plist
i am trying to read from propriety list using swift but im getting this error, and thats the code im using to read from my plist : Arrays i'm using : var recipeNames :[String] = [] var recipeImages :[String] = [] var recipeTime :[String] = [] In viewDidload : var...

Reference method from different class as curried function


swift,methods,currying
There are two merge methods in RACSignal: - (RACSignal *)merge:(RACSignal *)signal; + (RACSignal *)merge:(id<NSFastEnumeration>)signals; When I write RACSignal.merge it references static method: class func merge(signals: NSFastEnumeration!) -> RACSignal! How to reference object method? I can't write self.merge, because it is in wrapper class and self is not RACSignal....

animating a view on top of uitableview


ios,swift,autolayout
I have a UINavigationController that has my custom ViewController with a tableView in it that takes up the whole screen. I want to push down the tableView and reveal a settings menu with just a couple items. My SettingsView.xib I created in a separate nib that is 320 x 90...