Category "swift"

SwiftUI - Unknown preview provider "ContentView_Previews_" when previewing. Happens in a brand-new project

I have this simple view. import SwiftUI struct ContentView: View { var body: some View { Text("Hello") } } struct ContentView_Previews: Previe

Deleting and inserting a row in a table?

I am following some swift tutorials and I have been noticing that sometimes it's enough to use the array and append/remove but sometimes you have to also add in

iOS IPA file could not be installed because it's integrity could not be verified

After installing ipa file on my iPad 14.2 version this error prompt. " this app cannot be installed because its integrity could not be verified" what should

Menu Bar Popover is missing from application's elements tree on macOS

I'm currently trying to write simple UI Tests for an App that comes with a popover in the macOS menu bar. One of the tests is supposed to open the menu bar popo

Why does UIButton.setTitle change the font size?

I'm building an iOS app for a class, and I'm following along some instructions. The Edit button is connected to toggleEditingMode, but when I change the text, f

Swift Playgrounds (iPad) does not build an app with implemented ARSessionDelegate.session(_:didUpdate:) functions

I found an error while trying to implement a SwiftUI representation of ARView with ARSessionDelegate based on Apple’s official example “Building an

Any way to keep gradient attached at top when scrolling?

I have a scroll view attached to superview(not safe area) and inside it there is a gradient filled view at top. However when i swipe up, the gradient gets pulle

SwiftUI: How to switch to a new navigation stack with NavigationViews

I am currently using SwiftUI Beta 5. I have a workflow which involves navigating through a series of views. The last view involves an operation which populates

How to split an array in half, and obtain two arrays

I want to split an array in two half, and then assign each half of the original array into two different string. I cannot do the first part. I have this code fo

Add swift UI support to the framework that target's IOS 10,

I wrote framework on Swift UI, then Client told me that lower IOS was required to be supported on framework. I rewrite framework on UIKit/UIViewController, And

How to remove the default Navigation Bar space in SwiftUI NavigationView

I am new to SwiftUI (like most people) and trying to figure out how to remove some whitespace above a List that I embedded in a NavigationView. In this image, y

" Duplicate keys of type ... were found in a Dictionary " when there is no Dictionary?

I'm quite new to Swift and I just encountered an error I don't find a solution for. I'm currently working on a game (Boggle, for the curious) and I want to upda

Conditional property in SwiftUI

How can I add an additional property based on a condition? With my code below I get the error: Cannot assign value of type 'some View' (result of 'Self.overlay

Is it possible to set default alert style for macOS UNNotification?

My application posts local macOS notifications. It's important that these are not banner style but alert style instead. So far I have achieved that by setting N

Swift Combine - @Published property Array

I am currently doing a project using SwiftUI and Combine. I'm on Xcode11 Beta 5. I would like to fetch my Github repositories, display them and then be able to

SwiftUI: How to pop to Root view

Finally now with Beta 5 we can programmatically pop to a parent View. However, there are several places in my App where a View has a "Save" button that conclude

SwiftUI NavigationView nested in PageTabView wrong aligned on first appear

The NavigationViews inside my PageTabView are wrong aligned on first appear. When i scroll to another page on my PageTabView and go back to the first page, the

Create a Timer Publisher using Swift Combine

I've been watching the Data Flow Through SwiftUI WWDC talk. They have a slide with a sample code where they use a Timer publisher that gets connected to a Swift

Autolayout warning when using prompt in navigation bar

I am using a navigation bar with a prompt, looking like this: I receive the following auto layout warnings in the console: 2019-09-01 21:26:03.225576+0200 Ho

SwiftUI select multiple item in a lazyhgrid

With SwiftUI this is my current code: import SwiftUI enum Items: String, CaseIterable, Equatable { case item1 case item2 case item3 case item4