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play audio import UIKit import AVFoundation class ViewController: UIViewController { var player: AVAudioPlayer! override func viewDidLoad() { super.viewDidLoad() } @IBAction func keyPressed(_ sender: UIButton) { playSound() } func playSound()...

and choose 2 or default

to pad a button set it's width to a value and address the error :

inside the views set the views constraints

setting stack view attributes set distribution to fill equally and play with the spacing : set embedding views background to default (which is see through) :

stack view constraints naming views : embed in a stack view finally add pin constraints to the stack view and set the pins relative to the safe area :

embedding views method 1 :add a UIView (+ btn from upper tool bar) and drag a view in to it : method 2 : select views->editor->embed in->view method 3 :select views and then click the embed button an error will prompt you to set the containing views constraints or a constraint embedding it:

pinned constraints if you place views without sufficient constraints it will err : setting alignment constraint (marked in the bottom toolbar with 2 rectangles) for the label : adding a pinned constraint (marked in the bottom toolbar with a square with 4 lines around it) so the view is...

alignment constraints these set an axis for a view so that it stays situated when the phone is rotated

constraints these glue the views using rules pin constraints ( background ) ^ set the trailing and leading attributes of the background constraints to the superview to stretchmax it all over the screen

🍿:kek:

🍹:meh:

https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/random-vs-pseudorandom-number-generators

randomizer Int.random(in: 0...5) // includes 0 and 5 Int.random(in: 0..<5) // includes 0 array1.randomElement()! // returns a random element from the array

https://jizz.is/threads/swift-grimoire.329/