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How can i create a second UIViewController programmatically that is independent ?
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) } }
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399
Mar ’22
What is the difference between func (to view: UIView) and not using the 'to'?
I have a function in my UIView extension and I can call it both ways This way: func anchorSizePercent(to view: UIView, sFactor: CGSize) { ... } myHeader.anchorSizePercent(to: myView, sFactor: CGSize(width: 0.8, height: 0.2)) As well, I can call it without the to, such as: func anchorSizePercent(view: UIView, sFactor: CGSize) { ... } myHeader.anchorSizePercent(view: myView, sFactor: CGSize(width: 0.8, height: 0.2)) May I ask what the difference is?
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497
Mar ’22
Is anyone aware of any bugs associated with: .modalTransitionStyle = .partialCurl ?
I posted this question below on StackOverflow, and when someone pointed out .partialCurl, I tried different modalTransitionStyles, and the code doesn't crash. Is anyone aware of "known" issues with partialCurl from Apple? original post on StackOverflow Within my root UIViewController I call up a submenu, second UIViewController, with the following code: within root UIViewController let myInvMenu = InvMenuCtrl() myInvMenu.modalPresentationStyle = .fullScreen myInvMenu.modalTransitionStyle = .partialCurl present(myInvMenu, animated: false) Within the new screen, I have a back button, I want dismiss it, and return to the original UIViewController. dismiss(animated: false) In this post, I have the animation set to false, because that works fine. But if I set it to true, I crash on the dismissal. From the docs, below I assumed that I didn't have to handle anything myself, but obviously if someone could tell me where my misunderstanding is: The presenting view controller is responsible for dismissing the view controller it presented. If you call this method on the presented view controller itself, UIKit asks the presenting view controller to handle the dismissal.
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456
Mar ’22
How can I stop Xcode from indenting on hitting return
Xcode 13.3 Whenever I hit enter on Xcode, it starts off the new line with an indentation. It doesn't matter if I am creating a new line, or moving lines down, it always start the new line, or the moved line with an indentation. This happens when I have: Prefer Indent Using set to Tabs regardless if I have Syntax-Aware Indenting: Return checked or unchecked Any thoughts? Update, now somehow it does that auto indent on every line no matter whether I set it tabs or spaces. It's as if I broke it. Very annoying, please help!
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2.2k
Mar ’22
Need help with how to cast a Data holder for file uploads from the UIDocumentPickerViewController
Am trying to add a file uploader to my iPhone app in Swift, and need help as am unsure how to save the data from returned from the UIDocumentPickerViewController. My whole document picking code works, and ends with this line of code: let data = try Data.init(contentsOf: url) The thing is I don't do my uploading till the user clicks another button, so I need to save that data. but am unsure how to cast a variable to hold it, then release the original data, and then finally free the copy. I thought this would work var dataToSend : AnyObject? but it doesn't Yes, still have casting issues to learn in Swift
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309
Mar ’22
Not sure why Swift is giving me a "Cannot find 'xFile' in scope" error
I have the following structure : struct XFile : Codable { ...variables here init(fileUrl: URL, key: String) { ... } Then in another class I am trying the following: class UploadTask { var xfile: XFile var inProgress = false init(file: URL) { xFile = XFile(fileUrl: file, key: "filename") } } If typed as above Xcode gives me the following error: Cannot find 'xFile' in scope If I remove the xFile= part, Xcode give me the following warning and error: Result of 'XFile' initializer is unused Return from initializer without initializing all stored properties Obviously I am breaking some rule, just not sure what it is.
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857
Apr ’22
Do I need to dismiss UIDocumentPickerViewController even when the enduser choses a file?
From a tutorial I pulled the extension below to allow the enduser to select a file off of the iPhone's storage system. Everything works fine. However I noticed that in the delegate that "dismiss" is only being called if the user chooses cancel. While the view does disappear when a file is selected, I am not sure that the view is being properly dismissed internally by Swift. Since I do call present, am I responsible for dismissing it when the user chooses a file as well? let supportedTypes: [UTType] = [UTType.item] let pickerViewController = UIDocumentPickerViewController(forOpeningContentTypes: supportedTypes) pickerViewController.delegate = self pickerViewController.allowsMultipleSelection = false present(pickerViewController, animated: true, completion: nil) extension uploadFile: UIDocumentPickerDelegate { func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) { for url in urls { guard url.startAccessingSecurityScopedResource() else { print ("error") return } ...save chosen file url here in an existing structre do { url.stopAccessingSecurityScopedResource() } } } func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) { controller.dismiss(animated: true, completion: nil) } }
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669
Apr ’22
Am unable to receive HTTP responses with UIViewController set as URLSessionDelegate
This question is also, here, one StackOverflow. But it's only gotten 8 views, and I am stuck till I find out what am I doing wrong. I am able to create a URLSesion, build a request with a file to upload and successfully call it from my app. On my server side, the proper script is called, uploaded file is saved, etc,. However, I am not receiving the HTTP responses, data, etc. Actually had this working without the delegate, when the HTTP response functions were within the task itself. But am now trying to expand functionality and am missing something while trying implement the delegate. The trimmed code is below, and it all works, with the exception of setting up UIViewController as the URLSession delegate. Just trying to figure out why my UIViewController is not receiving the HTTP responses. Below is the code for: UIViewController Class which creates the upload session (UploadService) Extension for UIViewController which I want to use to process the responses How the previous task looked, when it worked. Before I tried to implement the delegate. UIViewController class UploadInv : UIViewController { var xFile : XFile? ...create UI.... let uploadService = UploadService() lazy var uploadSession: URLSession = { let configuration = URLSessionConfiguration.default return URLSession(configuration: configuration, delegate: self, delegateQueue: .main) }() override func viewWillAppear(_ animated: Bool) { ... } override func viewDidLoad() { super.viewDidLoad() uploadService.uploadSession = uploadSession ... code the lays out all buttons, labels, etc... } @objc func buttonAction(sender: UIButton!) { guard let theButton = sender else { return} let myTag = theButton.tag switch myTag { //button to start upload case ButtType.up.rawValue: uploadService.start(upFile: xFile!, script: "uploadOrig.pl", upLoadInvClass: self) uploadService.task?.resume() //button to select file to upload case ButtType.file.rawValue: ... file xFile with file info } } UploadService class UploadService { var task: URLSessionUploadTask? var uploadSession = URLSession.shared func start(upFile: XFile, script: String, upLoadInvClass: UploadInv) { var request = upFile.makeUrlReq(upFile: upFile, script: script) self.task = uploadSession.uploadTask(with: request, from: request.httpBody! ) } } extension extension UploadInv: UIDocumentPickerDelegate, URLSessionDelegate { func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) { ... file xFile info for upload .... ... http request created .... } // Below are the three simple functions which I would handle // responses the server, but these never seem to get called. func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) { if let err = error { print("Error: \(err.localizedDescription)") } } func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive response: URLResponse, completionHandler: (URLSession.ResponseDisposition) -> Void) { print("didReceive response") completionHandler(URLSession.ResponseDisposition.allow) } func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) { print("didReceive data") if let responseText = String(data: data, encoding: .utf8) { print(responseText) } } } Pre-Delegate model which worked class UploadService { var uploadSession = URLSession.shared func start(upFile: XFile, script: String, upLoadInvClass: UploadInv) { var request = upFile.makeUrlReq(upFile: upFile, script: script) uploadSession.uploadTask(with: request, from: request.httpBody ) { (data, response, error) in if let response = response { upLoadInvClass.upResp(resp: response) } if let error = error { upLoadInvClass.upErr(error: error) } if let data = data { upLoadInvClass.upData(data: data) } }.resume() } }
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1.1k
May ’22
Is there an order for response, data, and error in URLSession delegates?
_Posted this here, on Stackoverflow. But after 2+ weeks got only 10 views and no responses. _ I have my URLSession delegates working, but am curious about the order I get back response, data, and error. Right now am testing purposeful errors on my server side, so I can check the response if it's not 200. If it's not, I do not need to process the data, etc. So I could use a flag, but have to make sure that I'l always get response, data, and error in a specific order? Does such an order exist? extension UploadInv: UIDocumentPickerDelegate, URLSessionDataDelegate,URLSessionTaskDelegate, URLSessionDelegate { // Error received func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) { if let err = error { print("Error: \(err.localizedDescription)") } } // Response received func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive response: URLResponse, completionHandler: (URLSession.ResponseDisposition) -> Void) { completionHandler(URLSession.ResponseDisposition.allow) DispatchQueue.main.async { [self] in if let httpResponse = response as? HTTPURLResponse { if httpResponse.statusCode != 200 { DispatchQueue.main.async { [self] in self.myStatus.text = "Error \(String(httpResponse.statusCode))" myBackButt.isEnabled = true } } } } } // Data received func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) { DispatchQueue.main.async { [self] in
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1.1k
May ’22
Getting strange message in debugger since Xcode last updated
Xcode updated yesterday, and am now at Xcode Version 13.3 (13E113) Since then, whenever I debug my app the the simulator, I get the message below. Am curious if I should be concerned. If it makes a difference: Yes, I have an IBM keyboard attached via USB. Also this does not happen when I debug the app on the iPhone itself. 2022-03-15 14:50:45.745237-0400 Hello World[48883:648134] [HardwareKeyboard] -[UIApplication getKeyboardDevicePropertiesForSenderID:shouldUpdate:usingSyntheticEvent:], failed to fetch device property for senderID (778835616971358211) use primary keyboard info instead.
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7.1k
May ’22
Changing my entities in CoreData gave me a NSCocoaErrorDomain Code=134140 and I can't go back
Updated info below, in bold. I went and changed one of the entities in the CoreData of my app. For all my entities I have them selected as "Manual" for Codegen So I deleted all four files (for two entities), cleaned the build folder, regenerated the CoreData files with Editor -> Create NSManagedObject Subclass. Now every time I run the app I get a fatalError in the following code in the AppDelegate: lazy var persistentContainer: NSPersistentContainer = { let container = NSPersistentContainer(name: “Invoice_Gen") container.loadPersistentStores(completionHandler: { (storeDescription, error) in if let error = error as NSError? { fatalError("Unresolved error \(error), \(error.userInfo)") } }) return container }() The error code being [error] error: addPersistentStoreWithType:configuration:URL:options:error: returned error NSCocoaErrorDomain (134140) Even if I remove the files for the CoreData entities, and comment out anything related to them code wise, I will still get this crash. If someone has any idea of whether I have to delete something else, or am whatever I would so appreciate it. This one has me more stumped than anything before it. The change I made was to turn one of the entities' attribute from String to Int When I changed it back, everything works. So from my research on Google there is something about the mapping model. But I can not find it at all.
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1.6k
Jun ’22