I know it's uncool to ask vague questions here, but what do they call it when you create a world and follow it with a camera in Swift? Like an RPG? Like Doom? I want to try and learn that now. And more importantly can it be done without using the Xcode scene builder? Can it be done all via code? Thanks, as always. Without the forum I would never have gotten much farther than "Hello World!"

I have an SkSpriteNode (ball) in a box. Gravity is set to false, otherwise it has an SkPhysicsBody to bounce off of walls. Is there a method to give the ”ball” an initial push in a specified direction and velocity/strength wise?

While I do need to get another HD, I currently have 34.85 GB (12.61 GB purgeable) available. Yet for some reason when I try to run update on Xcode, it says I don't have enough HD space. That's three times the final size of the new Xcode. Is there some way around this?

So sorry if I should't be asking this here, but am trying to find a current-ish tutorial on how to make an app that converts speech to text in real time. Transcribing from text to speech as you're speaking. I've found a few one's on YouTube, but they are quite old, or just transcribing from a recorded file, etc. etc. If anyone is aware of a good tutorial, paid or not, I would so appreciate any link. Thank you

I have my mainController (parent) and my menuController (child). I call the menuController with addChild(child) view.addSubview(child.view) child.didMove(toParent: self) The child dismisses itself with: self.dismiss(animated: true, completion: nil) The question I have, is how do I clean up the child within the parent? Surely I have to do something?

At the very bottom is my code where MainController initiates a subview called setController. The new subview is created when I click the button However, within setController's code I get back a nil when I try to the superview: override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) print("\(self.view.superview)" ?? "count->no parent") } I am assigning the second view as a subview, but obviously I am missing something. Have I misunderstood how UIView hierarchy works? class MainController: UIViewController { private lazy var setController = SetController() var invButton : MyButton! override func viewDidLoad() { super.viewDidLoad() view.backgroundColor = .black invButton = makeButton(vControl: self, btype: ButtType.inv, action: #selector(self.buttonAction(sender:))) invButton.frame.origin.x = self.view.frame.width * 0.1 invButton.frame.origin.y = self.view.frame.height * 0.1 invButton.setTitle("Settings", for: .normal) } override var prefersStatusBarHidden: Bool { return false } @objc func buttonAction(sender: UIButton!) { guard let theButton = sender as? MyButton else { return} UIView.transition(with: self.view, duration: 0.5, options: .transitionCurlDown, animations: { [self] in self.addChild(setController) self.view.addSubview(setController.view) setController.didMove(toParent: self) }, completion: nil) } }

I've learned the hard way that specific commands to add a child UIView must be in a certain order, especially if I am bringing in the child UIView using animation. So I'd like to be clear that what the order I use to delete a child UIView is correct. Yes, what I have below works. But that doesn't mean it's correct. Thank you UIView.transition(with: parent, duration: 0.5, options: .transitionCurlUp, animations: { [self] in self.willMove(toParent: nil); self.removeFromParent(); self.view.removeFromSuperview(); self.dismiss(animated: false, completion: nil); }, completion:nil)

Copied the code below from a tutorial, and I mostly understand what is going on. But I'd like to be able to fully read it. What I do get is that: handler can be nil, but here it's the code to run upon the completion of UIAlertAction. But am unsure what (_) in is. I have also sometimes seen it as [self] in Thank you controller.addAction(UIAlertAction(title: "OK", style: .default, handler: { (_)  in controller.dismiss(animated: true, completion: nil)}))

I was under the impression, with offline speech to text, that there was no limit. Since the app wouldn't be using Apple's servers in real time. Yet when I process: speechRecognizer.recognitionTask it quits after one minute. Did I misread something ?

Am using the demo code below to flesh out an audio recording app in Swift 5.x I would like to monitor certain aspects of the AVAudioRecorder as it is recording. Such as: frequency, power, volume, etc. but in live time. I found an example in Swift 3 where the user sets up a callback timer for 0.5 sec. I was wondering if this was still the case, or that in the latest version of Swift, there might be a callback function in the AVAudioEngine that gets called at a regular frequency? do { audioRecorder = try AVAudioRecorder(url: audioFilename!, settings: settings) audioRecorder.delegate = self audioRecorder.record() recordButton.setTitle("Tap to Stop", for: .normal) } catch { finishRecording(success: false) } }

I am trying to save the buffer from my installTap to a file. I do it in chunks of 10 so I'll get a bigger file. When I try to play the written file (from the simulator's directory) QuickTime says that it's not compatible. I have examined the bad m4a file and a working one. There are a lot of zero's in the bad file at the beginning followed by a lot of data. However both files appears to have the same header. A lot of people mention that I have to nil the AudioFile, but: audioFile = nil is not a valid syntax, nor can I file a close method in AudioFile. Here's the complete code, edited into one working file: import UIKit import AVFoundation class ViewController: UIViewController { let audioEngine = AVAudioEngine() var audioFile = AVAudioFile() var x = 0 override func viewDidLoad() { super.viewDidLoad() record() // Do any additional setup after loading the view. } func makeFile(format: AVAudioFormat) { let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first do { _ = try FileManager.default.contentsOfDirectory(at: paths!, includingPropertiesForKeys: nil) } catch { print ("error")} let destinationPath = paths!.appendingPathComponent("audioT.m4a") print ("\(destinationPath)") do { audioFile = try AVAudioFile(forWriting: destinationPath, settings: format.settings) print ("file created") } catch { print ("error creating file")} } func record(){ let node = audioEngine.inputNode let recordingFormat = node.inputFormat(forBus: 0) makeFile(format: recordingFormat) node.installTap(onBus: 0, bufferSize: 8192, format: recordingFormat, block: { [self] (buffer, _) in do { try audioFile.write(from: buffer); print ("buffer filled"); x += 1; print("wrote \(x)") if x > 9 { endThis() } } catch {return};}) audioEngine.prepare() do { try audioEngine.start() } catch let error { print ("oh catch") } } func endThis(){ audioEngine.stop() audioEngine.inputNode.removeTap(onBus: 0) } }

Hello, Am starting to work with/learn the AVAudioEngine. Currently am at the point where I would like to be able read an audio file of a speech and determine if there are any moments of silence in the speech. Does this framework provide any such properties, such as power lever, decibels, etc. that I can use in finding long enough moments of silence?

I have an iOS app with multiple subclasses of UIViewControllers. There are many type of UIAlertControllers I might need to use based on user interaction, internet connection, and catching any other fatal errors. So I wrote the extension for UIViewController below, which works just fine. And I can call from any of my UIViewControllers as simply as: myErrors(error: MyErrors.e1.rawValue, title: "Internet Error", msg: "Unable to connect to Internet\nTry Again?") While this works, I do not know if it's proper to add an extension to UIViewController. Is this considered bad practice? Is there another way I should be pursuing this? extension UIViewController { func myErrors(error: MyErrors, title: String, msg: String) { var title = "" var message = "" switch error { case .e1: title = String(format: "%@", title) message = String(format: "Database Error %03d%@\n", error.rawValue, msg) case .e2: title = String(format: "%@", title) message = String(format: "Internet Error %03d%@\n", error.rawValue, msg) case .e3: title = String(format: "%@", title) message = String(format: "User Error %03d%@\n", error.rawValue, msg) } let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertController.Style.alert) switch error { case .e1: alert.addAction(UIAlertAction(title: "No", style: .init(rawValue: 0)!, handler: { (action: UIAlertAction!) in // ..log error //...proceed to code based on No .... })) alert.addAction(UIAlertAction(title: "Yes", style: .init(rawValue: 0)!, handler: { (action: UIAlertAction!) in // ..log error //...code based on Yes .... })) case .e2: // No user option availabe in this alert, just OK // ... do all logging of errors // proceed case .e3: // Add specific acctions to this error // ... do all logging of errors // proceed } self.present(alert, animated: true, completion: nil) } }

Stupid question, could a moderator please delete this embarrassing post on my part? I was looking up removing the Main storyboard, and am a little confused. Everywhere in my app, I'm supposed to remove "Main." But I can't find where ViewController.swift is called. So am trying to figure that part out, who calls whom? Because if I add a background color to ViewController, and a label to the Main storyboard, both show up. I'm just trying to figure out how both are called.

Closing because again I asked a stupid question Below is my very simple code, where I programmatically create another UIViewController. My only problem is that it pops up as a view that can be swiped away. I want this to be its own UIViewController that takes the entire screen, and cannot be just shipped away. Is that possible? import UIKit class ViewController: UIViewController { lazy var mainMenu = MainMenuCtrl() private let myView : UIView = { let myView = UIView() myView.translatesAutoresizingMaskIntoConstraints = false myView.backgroundColor = .gray return myView }() override func viewDidLayoutSubviews() { super.viewDidLayoutSubviews() } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) view.backgroundColor = bgColor view.addSubview(myView) addContraints() present(mainMenu, animated: true) } override func viewDidLoad() { super.viewDidLoad() } override var prefersStatusBarHidden: Bool { return false } override var preferredStatusBarStyle: UIStatusBarStyle { return .darkContent } func addContraints() { var constraints = [NSLayoutConstraint]() constraints.append(myView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 5)) constraints.append(myView.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor, constant: -5)) constraints.append(myView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -5)) constraints.append(myView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor,constant: +5)) NSLayoutConstraint.activate(constraints) } }