54
votes
23
answers
2.1K
views
How to find index of list item in Swift?
I am trying to find an item index by searching a list. Does anybody know how to do that? I see there is list
58
votes
12
answers
2K
views
The use of Swift 3 @objc inference in Swift 4 mode is deprecated?
Briefly, while using Xcode 9 Beta, I have run into the following warning: The use of Swift 3 @objc inferen
55
votes
10
answers
1.2K
views
Why create "Implicitly Unwrapped Optionals", since that implies you know there's a value?
Why would you create a "Implicitly Unwrapped Optional" vs creating just a regular variable or constant? If you
64
votes
6
answers
3K
views
Swift: print() vs println() vs NSLog()
What's the difference between print, NSLog and println and when should I use each? For example, in Pytho
49
votes
19
answers
1K
views
How to add constraints programmatically using Swift
I'm trying to figure this out since last week without going any step further. Ok, so I need to apply some
54
votes
22
answers
1.6K
views
Any way to replace characters on Swift String?
I am looking for a way to replace characters in a Swift String. Example: "This is my string" I would like to
52
votes
17
answers
3K
views
Why Choose Struct Over Class?
Playing around with Swift, coming from a Java background, why would you want to choose a Struct instead of a C
56
votes
30
answers
3.1K
views
How would I create a UIAlertView in Swift?
I have been working to create a UIAlertView in Swift, but for some reason I can't get the statement right
62
votes
17
answers
973
views
How to check if an element is in an array
In Swift, how can I check if an element exists in an array? Xcode does not have any suggestions for contain, i
59
votes
23
answers
3.1K
views
What does an exclamation mark mean in the Swift language?
The Swift Programming Language guide has the following example: class Person { let name: String init
55
votes
6
answers
1.3K
views
Why are emoji characters like ???? treated so strangely in Swift strings?
The character ???? (family with two women, one girl, and one boy) is encoded as such: U+1F469 WOMAN,
61
votes
30
answers
2K
views
How to enumerate an enum with String type?
enum Suit: String { case spades = "♠" case hearts = "♥" case diamonds = "♦" case clubs =
56
votes
27
answers
2.7K
views
How do I check if a string contains another string in Swift?
In Objective-C the code to check for a substring in an NSString is: NSString *string = @"hello Swift"; NSRan
53
votes
18
answers
2.6K
views
Swift how to sort array of custom objects by property value
lets say we have a custom class named imageFile and this class contains two properties. class imageFile {
56
votes
30
answers
1K
views
UIScrollView Scrollable Content Size Ambiguity
Fellow devs, I am having trouble with AutoLayout in Interface Builder (Xcode 5 / iOS 7). It's very basic
56
votes
26
answers
2.8K
views
dispatch_after - GCD in Swift?
I've gone through the iBook from Apple, and couldn't find any definition of it: Can someone explain
53
votes
7
answers
1.9K
views
How can I make a weak protocol reference in 'pure' Swift (without @objc)
weak references don't seem to work in Swift unless a protocol is declared as @objc, which I don't wa
53
votes
30
answers
1.8K
views
Using a dispatch_once singleton model in Swift
I'm trying to work out an appropriate singleton model for usage in Swift. So far, I've been able to
63
votes
23
answers
437
views
Convert Int to String in Swift
I'm trying to work out how to cast an Int into a String in Swift. I figure out a workaround, using NSNum
62
votes
22
answers
2.2K
views
UITextField text change event
How can I detect any text changes in a textField? The delegate method shouldChangeCharactersInRange works for