Category "swift"

how to analyse crash report

i need to collect crash reports, but i don't understand them. For testing purposes i make the app crash with just these 2 lines in a viewDidLoad(): var test:Str

Adding attribute to markdown NSAttributedString goes out of bounds

I have user input which can contain markdown or not. I want to show the user input on screen with rendered markdown. For some reason, I want to add my own stati

How to navigate between NavigationLink while leave a part of main window stay the same in SwiftUI

I would like to navigate between different NavigationLinks in NavigationView while some part of the main window stay the same. For example, I want to make a mus

How to navigate between NavigationLink while leave a part of main window stay the same in SwiftUI

I would like to navigate between different NavigationLinks in NavigationView while some part of the main window stay the same. For example, I want to make a mus

async/await, Task and [weak self]

Okay so we all know that in traditional concurrency in Swift, if you are performing (for example) a network request inside a class, and in the completion of tha

How to use array of ForEach in SwiftUI

I would like to create an array with a ForEach loop. Something like this : let a = [ ForEach(b) { c in "create the element in the array" } ] H

Using UIBarButtonItemAppearance have both the system and the custom back button images

I am using UIBarButtonItemAppearance for the first time and I'm confused on how to put a custom image for the back button. This is how I do it: private func cre

Extension function is inaccessible due to 'internal' protection level

So I have this lovely extension that would allow me to write conditional view modifiers to my views, made by Antoine van der Lee https://www.avanderlee.com/swif

Swift Combine dependent API Calls

I have 3 API call, all of them are being called using Publishers. API A & API B will be called first before API C got called. But API C should be called onl

Swift tabBar not displaying correctly

In Xcode I have this app that uses tabBarItem. There are 5 items and occasionally when I'm on a specific page I get this weird overlay of the tabBarItems (see p

Swift: Array of Dictionaries get nested value

I'm need help in Swift, hope someone here can help me, I'm new and I don't understand exactly how to get values out of a nested JSON. this is what I have. In th

Metal Ray Tracing – SceneKit or RealityKit

The WWDC21 talk below shows how to "Enhance your app with Metal ray tracing". How can I add Metal ray tracing to a SceneKit or RealityKit app? Any basic example

Replicate UIView motion effects on sprite nodes

Views on Swift have a special property that allows them to add effects to it, which looks like this: view.addMotionEffect(interpolatingEffectCombined) Note tha

How to convert a date string with optional fractional seconds using Codable in Swift?

I am replacing my old JSON parsing code with Swift's Codable and am running into a bit of a snag. I guess it isn't as much a Codable question as it is a DateFor

Text not updating when variable updates in SwiftUI (Swift 5, Xcode 13)

I have this variable, timeRemaining and when a button is pressed it should subtract one from timeRemaining. I want the Text to update whenever the user clicks t

How to programmatically segue after successful authentication with Firebase?

I'm just starting to code with Swift and I need help! I have authentication with firebase with email, I would like that after this login to show another view co

How to resolve expected declaration error in swift?

I am new to swift and am trying to build an app. I am receiving "Expected Declaration" error on Xcode when I type the following code. .edgesIgnoring

realm swift - filter objects with a property that starts with a string included in a list

I have a list of strings filterList = ['x0', 'x1', 'x2'] My object is as follows: class Item: Object { @Persisted var name: String? } I want to get all obj

xcode does't generate .h file for swift framework project?

I created a framework writting on pure swift , but I cant find any .h file of public class . shouldn't Xcode generate .h file automaticly? here is project struc

NumberFormatter and unsigned with UInt64.max

I'm trying to create a string representing UInt64.max using NumberFormatter. Here's the code: let formatter = NumberFormatter() formatter.usesGroupingSepar