Category "swift"

How to save JPEG/RAW image data to camera roll in iOS 11, can't access processed image data

I'm attempting to write a photoapp that can take both RAW and JPEG images and save them to the camera roll. The functions jpegPhotoDataRepresentation and dngPho

Is it correct to expect internal updates of a SwiftUI DynamicProperty property wrapper to trigger a view update?

I'm attempting to create a custom property wrapper supported by SwiftUI, meaning that changes to the corresponding properties values would cause an update to th

How can I detect orthogonal scroll events when using `UICollectionViewCompositionalLayout`?

In the video Advances in Collection View Layout - WWDC 2019, Apple introduces a new 'orthogonal scrolling behavior' feature. I have a view controller almost ide

What are the delegate methods for ReplayKit's initial alert choices?

When the the user first decides to use ReplayKit there is an alert that appears. It gives 3 choices: -Record Screen and Microphone -Record Screen Only -Don&rsqu

Incorrect Video Time using mpeg4AppleHLS swift

I am creating MPEG-2 video files using mpeg4applehls profile type in avassetwriter, the videos duration or start time are wrong. I create 5-second video segment

Creating a limited count array of custom type

I am creating array of Promises of type [MSGraphScheduleInformation?]. I want to limit the array count to 4, but the repeating param in the API is throwing erro

SwiftUI picker .onChanged only firing on 2+ selection changes

I have a picker that will change an attribute of an object that is bound to the view. When the picker is changed I want to update the bound object so the change

Kotlin: Equivalent of property wrappers from Swift

What is the equivalent property wrappers for Kotlin: @propertyWrapper struct Foo { var wrappedValue: String { get { return "Test

How can I detect a right-click in SwiftUI?

I'm writing a simple Mines app to help me get to know SwiftUI. As such, I want primary click (usually LMB) to "dig" (reveal whether there's a mine there), and s

SwiftUI: How to only run code when the user stops typing in a TextField?

so I'm trying to make a search bar that doesn't run the code that displays the results until the user stops typing for 2 seconds (AKA it should reset a sort of

SwiftUI DatePicker Binding optional Date, valid nil

I'm experimenting code from https://alanquatermain.me/programming/swiftui/2019-11-15-CoreData-and-bindings/ my goal is to have DatePicker bind to Binding<

How do I set the minimum window size with swiftUI, and how do I make the window use the specified size and position when launching?

I am making a macOS app with swiftUI. I want to set the minimum size of the window to 800, 500. Also there is this thing that if I close the window, and reopen,

How to open your app's settings (inside the Settings app) with Swift (iOS 11)?

I would like to open my app's settings page inside the Settings app with Swift 4 in iOS 11. Just like the picture shows: The following codes doesn't work, it

How do I make an entity a physics entity in RealityKit?

I am not able to figure out how to make the "ball" entity a physics entity/body and apply a force to it. // I'm using UIKit for the user interface and RealityK

SwiftUI inputAccesoryView Implementation

I am trying to implement an inputAccessoryView on a TextField in SwiftUI. The goal is to have a "Done" Button appear above the Keyboard which when pressed gets

How to implement a left or right DragGesture() that trigger a switch case in SwiftUI?

I have created a DragGesture in a View that should select a @State(Bool) whether the user swipe left or right. The thing is that only swiping right is detecte

Translating Language programmatically

Just hopped into the world a multiLanguage settings in Xcode/Swift. After a good view on this tutorial I found it very easy to setting up multiple language usin

Swift 4+: Issues copying a String to Clipboard using NSPasteboard

I had this all working in Swift 3 and earlier but with Swift 4 no matter what variation I use this code will instead output text as a URL. If I put in "This is

Deserializing ARWorldMap in Unity that was serialized with NSKeyedArchiver in native iOS

I have developed an iOS/ARKit app that functions as a content editor for my AR game. It has a fair amount of interface that I don't want to port over to Unity,

UICollectionView error: cells must be retrieved by calling -: -dequeueReusableCellWithReuseIdentifier:forIndexPath:

In my project I have multiple types of UITableview cell each containing UICollectionview. Initially I loaded 2 tableViewcell in 2 sections of UITableview. At

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