In Swift, a Dictionary is an unordered collection by design. Therefore you can’t keep any order to it after migrating from an Array. If you want your values to be nil, just use let dict = Dictionary<Int, Any?>(uniqueKeysWithValues: [1, 2, 3].map { ($0, nil) }) This evaluates to [2: nil, 3: nil, 1: nil] If … Read more
There is not enough information but I can guess you where you have made mistake. Your class Bookmark is not singleton class so,every time Bookmark() create new instance every time. that means it will create new bookmark object for every instance. What I suggest you is inside func func setBookmark(imageURL:String, title:String, description:String, summary:String, date:String, link:String) … Read more
You just need to group your array elements and use map to join your keys using joined(separator: “, “): extension Array { func group(of n: IndexDistance) -> Array<Array> { return stride(from: 0, to: count, by: n) .map { Array(self[$0..<Swift.min($0+n, count)]) } } } Testing: let dic = [“f”:1,”a”:1,”b”:1,”c”:1,”d”:1,”e”:1, “g”: 1] let arr = Array(dic.keys).group(of: 2).map{ … Read more
Use this code. I hope this helps you. Timer.scheduledTimer(timeInterval: 5, target: self, selector: #selector(moveToNextPage), userInfo: nil, repeats: true) @objc func moveToNextPage (){ if self.x < dataArray.count { let indexPath = IndexPath(item: x, section: 0) sliderPageCont.currentPage=x sliderColletion.scrollToItem(at: indexPath, at: .centeredHorizontally, animated: true) self.x = self.x + 1 } else { self.x = 0 } } solved … Read more
Does this work? let size = text.boundingRect(with: CGSize(width: view.frame.width – 26, height: 2000), options: NSStringDrawingOptions.usesFontLeading.union(.usesLineFragmentOrigin), context: nil).size 2 solved Convert Swift 2 code to Swift 3
First of all, you need to learn the basic syntax of the pattern of NSRegularExpression: pattern does not contain delimiters pattern does not contain modifiers, you need to pass such info as options When you want to use meta-character \, you need to escape it as \\ in Swift String. So, the line creating an … Read more
Use SpriteKit. You can select this when creating a new project, choose Game, and then select SpriteKit. It’s Apple’s framework to make games. It has what you will need, and is also faster – don’t make games in UIKit. Within SpriteKit, you have the update() method, as part of SKScene. Do NOT use a while … Read more
You can use regular expression “(?<!:) ” to replace the white spaces ” ” occurrences where it is not preceded by colon punctuation “:”: let string = “Apple: Fruit Tomato: Vegetable Iron: Material” let pattern = “(?<!:) ” let result = string.replacingOccurrences(of: pattern, with: “\n”, options: .regularExpression) print(result) // “Apple: Fruit\nTomato: Vegetable\nIron: Material\n” solved String … Read more
A compiled app doesn’t contain any of the app’s Swift or Objective-C source code. solved Retrieve XCode Project from iOS app?
This is a starting point. The structs are pretty straightforward. If one of the Division arrays is empty – asked in one of your previous questions – the corresponding array is empty, too. struct Root : Decodable { let status : Bool let data: DivisionData } struct DivisionData : Decodable { let school, college, office, … Read more
This should be about right: func tableView(tableView: UITableView, indexPath: NSIndexPath) { let cell = tableView.cellForRowAtIndexPath(indexPath); let cellText = cell.textLabel.text; } 4 solved TableViewCell in Swift?
Use DispatchQueue.main.asyncAfter(deadline: .now() + 3) { test.append(number) } 1 solved Create the tail of the Snake in a Snake Game – swift [duplicate]
That should do the trick: let date = NSDate() let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = “yyyy-MM-dd” let timeFormatter = NSDateFormatter() timeFormatter.dateFormat = “HH:mm:ss.S” println(dateFormatter.stringFromDate(date)) println(timeFormatter.stringFromDate(date)) 2 solved swift date and time ios [closed]
extension Optional { func safeUnwrap(_ defaultValue: Wrapped) -> Wrapped { switch self { case let value?: return value case nil: return defaultValue } } } Or even extension Optional { func safeUnwrap(_ defaultValue: Wrapped) -> Wrapped { self ?? defaultValue } } But as was pointed out, this is more wordy and less idiomatic than … Read more
Posting my comment as an answer: The issue is that in ObjC swift functions x(cell:) and x(withCell:) are converted to xWithCell:. That is why it doesn’t allow that. Other function you wrote is converted to xOnCell: which is a different method compared to this. This has nothing to do with overloading in ObjC as it … Read more