Category "swift"

Move the annotation on Map like Uber iOS application

I am working on a project where I need to create a similar iOS application to UBER and OLA where the car is moving based on the location. I'm looking for some k

"Undefined symbol: protocol descriptor for Swift.ExpressibleByFloatLiteral" issue while installing react native on macOS Big Sur

I was trying to install React Native on my system, and found that it failed to install CocoaPods dependencies which is required by that template error. sudo arc

Extending Array to check if it is sorted in Swift?

I want to extend Array class so that it can know whether it is sorted (ascending) or not. I want to add a computed property called isSorted. How can I state the

How to call a function from a different swift file

I have multiple swift files of type UIViewController in my Xcode 6 beta-2 project. I basically want to know some data from file A to use in file B. My files are

UICollectionView attempt to create view animation for nil view

I have a UICollectionView with 2 sections. In the first one there is a custom UISegmentedControl with two options: "All" and "Favourite".When I click one of the

Swift: Global constant naming convention?

In Swift, it seems that global constants should be camelCase. For example: let maximumNumberOfLoginAttempts = 10 Is that correct? I'm used to all caps, e.g

Firebase In-app messaging opens the URL with link only once in swift

I have a strange problem with firebase in-app message for iOS in swift. the message is getting displayed during the launch as expected,i was sending a URL with

Make a UIButton programmatically in Swift

I am trying to build UIs programmatically with Swift. How can I get this action working? override func viewDidLoad() { super.viewDidLoad() // Do any add

Using SceneKit in Swift Playground

I've looked everywhere for this but I'm coming up blank. How do you replicate what Chris Lattner was demonstrating with Playgrounds and SceneKit at WWDC? I want

Read and write a String from text file

I need to read and write data to/from a text file, but I haven't been able to figure out how. I found this sample code in the Swift's iBook, but I still don't

iOS image editor in swift

Is it possible to us iOS default image editor my existing app, like screenshot

How to set the value of checkboxes with a single variable

Hello folks of StackOverflow today I bring forth an optimization problem for you in swift As shown in the screenshot I have checkboxes in my screen and I have

iOS SwiftyZeroMQ get status

I am using SwiftyZeroMQ in iOS for zeromq. I can connect and communicate via sockets. But issue is I can't find anyway to know how can I get event/status that s

NotificationCenter to pass data in Swift

I am working on a test project in Swift 3. I am trying to pass textField string from one class to another class using NotificationCenter. I am trying to workout

Observe window resize event with SwiftUI

I currently have a LazyVGrid setup as such: struct NetworkGrid: View { var networks: [Network] let columns = [ GridItem(.flexible()),

iOS 10 don't call Notification Service Extension

I tried to implement the new Notification Service Extension, but I have a problem. In my NotificationService.swift file I have this code: class NotificationSe

Make Line chart gradient color go from line to bottom - SwiftUI

I am trying to make it so the line chart display a gradient color from the line and down but I can't seem to get it to only go from the line. Instead it just fi

Swift. Get binary string from an integer

I have binary 0000010 which is represented as an array of ints. From this binary I get an Integer: let number = Int32([0, 0, 0, 0, 0, 1, 0].reduce(0, combine:

tracking down/working around UnsafeRawBufferPointer with negative count (presumably somewhere out of SwiftUI intestines/Swift runtime)

What do I do about this? I get no useful info predictably. A search for UnsafeMutablePointer yields func scrollViewWillEndDragging(_ scrollView: UIScrollView,

Swift won't recognize /n line breaks after base64 string decoding

I am trying to take my base64 decoded string and print it, but the result does not recognize the line breaks. For example, print("Hi \n hello \n hi") Print l