All Questions
10,319 questions
3
votes
1
answer
59
views
Why does Array's contains(_:) method cause an error when comparing an optional value with a non-optional value in Swift?
I’m working with Swift and encountered an issue when using the contains method on an array. The following code works fine:
let result = ["hello", "world"].contains(Optional("...
- 33
0
votes
4
answers
132
views
Swift array `filter`, `map`, etc. (higher-order functions) when the closure needs to be `async`
Now that I'm living completely in a Swift 6 async/await world, I've suddenly hit a snag. When writing code of this sort (never mind what it does, just look at the form of the thing):
let result = ...
- 537k
-1
votes
1
answer
53
views
How to have multidata type Swift arays
I would like to know if I can have a Swift array or dictionary with multiple types.
For example:
struct type1 {
var t1: String
}
struct type2 {
var t2: Int
}
var dataArray = [type1(t1: "...
-1
votes
1
answer
32
views
Trying to have multiple array items appended to a user-defaults property when in a UITableViewCell?
I have been trying to create a "saved features" tab for my app. I embedded a button into my table view cell (which had a star icon - FavouriteStatusButton). When selected it would append the ...
- 29
1
vote
3
answers
92
views
Adding Elements to a KeyValuePair<X, Y>
I looked at this answer, and it appears the response may be "you can't get there, from here," but I have to try...
I am building a dynamic SwiftUI Charts generator, and need to figure out ...
- 5,332
1
vote
1
answer
45
views
Store an array of non-Codable structures in Swift [closed]
I want to store an array of non-Codable structures (= HabitConfiguration()) in UserDefaults.
Here is my attempt which consists in placing in a "dictionary" the variables of this structure ...
- 116
0
votes
3
answers
95
views
How can I sort dates to nearest date in Swift
I started studying programming languages quite recently
The essence of the problem is this - in SwiftData I created a model with the property of the date of birth and by picker I want to sort from ...
- 1
0
votes
0
answers
27
views
SwiftData Transformable [String] Object [duplicate]
I'm trying to create a SwiftData object with a [String] property 'cited'. I've written a custom ValueTransformer, but I get fatalError message:
SwiftData/SchemaProperty.swift:1212: Fatal error: ...
- 786
0
votes
0
answers
29
views
Playing video using AVAsset player returns error "Cannot Open"
Im trying to make a cache system so that cache some videos in splash screen to have better user experience specially for first time opening the app
here's what I did in my cache manager
class ...
0
votes
1
answer
67
views
SwiftUI DragGesture stops responding when removing the last item in a row of a 2D array mid-gesture
I’m building a SwiftUI view with draggable items organized in a 2D array (array of arrays). I want to allow items to be moved between rows while dragging, specifically moving the item mid-gesture once ...
- 15
-8
votes
2
answers
74
views
Searching for a way to get unique words from an array of strings [closed]
I'm searching for a way to get all sorted unique words in Swift for an array of strings containing sentences
For example:
let complexArray = ["One large dog", "One small dog", &...
- 1,776
0
votes
0
answers
24
views
Error “Could not materialize Objective-C class named ‘Array’ from declared attribute value type ‘Array’” [duplicate]
I’m trying to save data to a SwiftData database, but I keep running into this error:
Could not materialize Objective-C class named "Array" from declared attribute value type "Array<...
- 2,395
-4
votes
2
answers
119
views
How to split a Swift string into an array by spaces and special characters like question marks, exclamation points, and periods? [closed]
I'm trying to split a string in Swift into an array of words, but I want to separate the words not only by spaces but also by special characters like question marks (?), exclamation points (!), and ...
- 879
0
votes
1
answer
82
views
Why is my picker displaying the array reversed?
I'm learning Swift and I came across this problem. I made an array for US states, and when I pass it in the picker for some reason it just reverses it. I solved it temporarily by reversing the states ...
- 1
1
vote
1
answer
56
views
How to correctly run AppleScript on Mail.app via NSAppleScript and parse results as a list of strings
I've the following code that I would like to use to get a list of the email accounts available within the Mail.app.
import Foundation
struct EmailAccounts {
func getAccountNames() -> [String] {...
- 18.7k