Category "swift"

how to overload an assignment operator in swift

I would like to override the '=' operator for a CGFloat like the follow try : func = (inout left: CGFloat, right: Float) { left=CGFloat(right) } So I cou

WKWebView not showing Navigation Bar

I have a view in SwiftUI that shows a WKWebView which is passed to the main ContentView using the UIViewControllerRepresentable class, implemented following the

How to return data from WKWebView to JavaScript

I am developing a hybrid Android and iOS app using WebViews. However, I am struggling to return data from iOS app back to my Javascript. Below is how I setup t

Stereo ARSCNview to make VR and AR mix

I want to make a mix of virtual reality and augmented reality. The goal is I have a stereo camera (for each eyes). I tried to put two ARSCNView in a viewCotnro

The app delegate must implement the window property if it wants to use a main storyboard file swift

I have just developed an app, but when running in the simulator the debugger console says: The app delegate must implement the window property if it wants t

Check for duplicate characters in string using for-loops in swift

I did this using while loops but I'm wondering if there's a way to do this with for loops. I'm trying to write this clean so I can write it on a whiteboard for

How to detect when AVPlayer video ends playing?

I'am using AVPlayer for playing local video file (mp4) in Swift. Does anyone know how to detect when video finish with playing? Thanks

Check if key exists in dictionary of type [Type:Type?]

How can I check if a key exists in a dictionary? My dictionary is of type [Type:Type?]. I can't simply check dictionary[key] == nil, as that could result from

SwiftUI TapGesture onStart / TouchDown

I am using the TapGesture in SwiftUI for MacOS. TapGesture is only recognized on TouchInsideOut event, when releasing the press again. I want to call an action

Flutter - getApplicationDocumentsDirectory() : How to get the path in android and iOS

Directory tempDir = await getTemporaryDirectory(); String tempPath = tempDir.path; In android native code, I use getCacheDir() How do i get the getApplicatio

Is it possible to distinguish Bool and Int in Swift?

I have an AnyObject type that can be String, Int or Bool type. I need to distinguish them. This code tries to do so, but it considers Bool to be Int: import C

How to get the index of a deleted row from a list in SwiftUI?

I want to delete an element from an array that I am displaying as a list using a ForEach, but I also need to send a HTTP request to a REST API and I need to put

Is it possible to distinguish Bool and Int in Swift?

I have an AnyObject type that can be String, Int or Bool type. I need to distinguish them. This code tries to do so, but it considers Bool to be Int: import C

Swift: Check which value in NSArray is closest to another given value

Lets say I have an array var values:[CGFloat] = [-12.0, 450, 300] I need to find out which of these numbers is closest to a given value, say var givenValue

What is the best/shortest way to convert a UIColor to hex (web color) in Swift?

I came up with the following solution, but would like to know if someone has a cleaner approach to it (tested it in Xcode-Playground): let colors = CGColorGetC

UItextView delegate swift - textViewDidBeginEditing not called

I've seen the other topics dealing with UITextView delegate, but can't seem to find where my issue come from. Here is my code, but when I modify my UITextView,

Cannot find type 'PiPViewCoordinator' in scope

I am getting following error when i install JitsiMeetSDK in flutter but i am unable to run app. Can somebody suggest me how can i resolve this issue? I am usin

How retrieve the normal for a given face of ARMeshGeometry?

given a ARMeshAnchor 'meshAnchor', i can retrieve its geometry and faces : let geometry = meshAnchor.geometry let faces = geometry.faces var i = Int(0) while i

DestinationViewController Segue and UINavigationController swift

So I have a prepareForSegue method like this: override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { if segue.identifier == "fromEve

How can I manage this view when constraints aren't available to me in swiftui?

I am very new to SwiftUI, and have actually been getting the hang of arranging my views using the Z, V and HStacks. But the lack of a centre anchor is proving d