I have an app that has been recently released on the App Store, however since launch anyone who has tried to use the app crashes whenever they try to do the following action, it worked completely fine all through out testing so am not sure what the problem is?
func addSubscriptionData(name: String, price: Double, category: Category, notes: String, theme: String, dateSignedUp: String, billingPeriod: Int, reminder: Bool, daysBefore: Int) {
let db = Firestore.firestore()
db.collection("users").document(preferences.docId).collection("subscriptions").addDocument(data: ["name": name, "price": price, "category": category.rawValue, "notes": notes, "theme": theme, "dateSignedUp": dateSignedUp, "billingPeriod": billingPeriod, "reminder": reminder, "daysBefore": daysBefore]) { error in
if error == nil {
self.getSubscriptions()
}
else{
print("Can't add subscription to database")
}
}
}
Thanks so much
Cian
A crash log:
Related
I have this function:
struct Downloader {
static func presentDownloader(
in viewController: UIViewController,
with urls: [URL],
_ completion: #escaping (Bool) -> Void
) {
DispatchQueue.main.async {
let activityViewController = UIActivityViewController(
activityItems: urls,
applicationActivities: nil
)
activityViewController.completionWithItemsHandler = { _, result, _, _ in
completion(result)
}
viewController.present(
activityViewController,
animated: true,
completion: nil
)
}
}
}
It simply creates a UIActivityViewController and passes the completionWithItemsHandler as a completion block into the static func.
I am now trying to get rid of all the #escaping/closures as much as I can in order to adopt the new async/await syntax, however I don't know if I can do something here with this.
I started adding an async to my function, and realized that Xcode shows completionWithItemsHandler with an async keyword, but I really have no idea if I can achieve what I want here.
Thank you for your help
Yes, you can do that but you need to write yourself little wrapper over it. So it will look something like that:
#MainActor
func askToShareFile(url: URL) async {
let avc = UIActivityViewController(activityItems: [url], applicationActivities: nil)
present(avc, animated: true)
return await withCheckedContinuation { continuation in
avc.completionWithItemsHandler = { activity, completed, returnedItems, activityError in
print("Activity completed: \(completed), selected action = \(activity), items: \(returnedItems) error: \(activityError)")
if completed {
continuation.resume()
} else {
if activity == nil {
// user cancelled share sheet by closing it
continuation.resume()
}
}
}
}
}
However, important note here that, from my experimentation as of today (iOS 15.5), I can see completion handler is NOT called properly when, on share sheet, user selects any app that handle our file by copying it (activityType = com.apple.UIKit.activity.RemoteOpenInApplication-ByCopy).
If you do some changes - be careful, as you might loose continuation here so please test it yourself too.
as per the documentation, it should be pretty straightforward. example for a List: https://developer.apple.com/documentation/swiftui/list/ondrop(of:istargeted:perform:)-75hvy#
the UTType should be the parameter restricting what a SwiftUI object can receive. in my case i want to accept only Apps. the UTType is .applicationBundle: https://developer.apple.com/documentation/uniformtypeidentifiers/uttype/3551459-applicationbundle
but it doesn't work. the SwiftUI object never changes status and never accepts the drop. the closure is never run. whether on Lists, H/VStacks, Buttons, whatever. the pdf type don't seem to work either, as well as many others. the only type that i'm able to use if fileURL, which is mainly like no restriction.
i'm not sure if i'm doing something wrong or if SwiftUI is half working for the mac.
here's the code:
List(appsToIgnore, id: \.self, selection: $selection) {
Text($0)
}
.onDrop(of: [.applicationBundle, .application], isTargeted: isTargeted) { providers in
print("hehe")
return true
}
replacing or just adding .fileURL in the UTType array makes the drop work but without any type restriction.
i've also tried to use .onInsert on a ForEach instead (https://developer.apple.com/documentation/swiftui/foreach/oninsert(of:perform:)-2whxl#), and to go through a proper DropDelegate (https://developer.apple.com/documentation/swiftui/dropdelegate#) but keep getting the same results. it would seem the SwiftUI drop for macOS is not yet working, but i can't find any official information about this. in the docs it is written macOS 11.0+ so i would expect it to work?
any info appreciated! thanks.
You need to validate manually, using DropDelegate of what kind of file is dragged over.
Here is a simplified demo of possible approach. Tested with Xcode 13 / macOS 11.6
let delegate = MyDelegate()
...
List(appsToIgnore, id: \.self, selection: $selection) {
Text($0)
}
.onDrop(of: [.fileURL], delegate: delegate) // << accept file URLs
and verification part like
class MyDelegate: DropDelegate {
func validateDrop(info: DropInfo) -> Bool {
// find provider with file URL
guard info.hasItemsConforming(to: [.fileURL]) else { return false }
guard let provider = info.itemProviders(for: [.fileURL]).first else { return false }
var result = false
if provider.canLoadObject(ofClass: String.self) {
let group = DispatchGroup()
group.enter() // << make decoding sync
// decode URL from item provider
_ = provider.loadObject(ofClass: String.self) { value, _ in
defer { group.leave() }
guard let fileURL = value, let url = URL(string: fileURL) else { return }
// verify type of content by URL
let flag = try? url.resourceValues(forKeys: [.contentTypeKey]).contentType == .applicationBundle
result = flag ?? false
}
// wait a bit for verification result
_ = group.wait(timeout: .now() + 0.5)
}
return result
}
func performDrop(info: DropInfo) -> Bool {
// handling code is here
return true
}
}
I am junior Swift user but on this stage of life I need use serial connection in my project.
when I looking for availeble port ,I see them without problem but when try to send something I have problem why?
I have problem with ORSSerial this my code:
func applicationDidFinishLaunching(_ aNotification: Notification) {
let portEvString = ORSSerialPortManager.shared().availablePorts
let pathString = portEvString[0].path
let portClass = SerialController(path:pathString)
portClass.open()
portClass.SendString(data: "hello")
// Insert code here to initialize your application
RunLoop.current.run()
}
class SerialController : NSObject, ORSSerialPortDelegate {
var port : ORSSerialPort?
init(path: String){
port = ORSSerialPort(path: path)
port?.close()
}
func open(){
port?.baudRate=9600
port?.delegate=self
port?.open()
}
func close(){
port?.delegate=nil
port?.close()
}
func SendString(data: String){
let dataa = Data(data.utf8)
port?.send(dataa)
}
func serialPortWasOpened(serialPort: ORSSerialPort!) {
print("PORT IS OPEN....")
}
func serialPortWasClosed(serialPort: ORSSerialPort!) {
print("PORT IS CLOSE")
}
func serialPort(serialPort: ORSSerialPort!, didReceiveData data: NSData!) {
print(NSString(data: data as Data, encoding: String.Encoding.utf8.rawValue))
}
func serialPortWasRemovedFromSystem(_ serialPort: ORSSerialPort!) {
print("PORT REMOVED")
}
func serialPort(serialPort: ORSSerialPort!, didEncounterError error: NSError!) {
print("PORT ERR \(error)")
}
}
I believe the primary problem is that you don't store the instance of SerialController in a strong reference, so it gets deallocated immediately after you call SendString() on it. You need to store it in a property like so:
var serialController: SerialController?
func applicationDidFinishLaunching(_ aNotification: Notification) {
let availablePorts = ORSSerialPortManager.shared().availablePorts
let pathString = availablePorts[0].path
serialController = SerialController(path:pathString)
serialController?.open()
serialController?.SendString(data: "hello")
}
Beyond that problem, there are a number of things about this code that you should fix. The things that stick out most:
Don't call RunLoop.current.run() in applicationDidFinishLaunching(_:). You rarely need to manually run the run loop, and you definitely don't need to here.
As documented in ORSSerialPort, you must release any strong references to the port in your implementation of serialPortWasRemovedFromSystem(_:). That means in that method, you need to do port = nil.
The force unwrap operators (!) scattered through this code make me wonder if you're using an old version of ORSSerialPort, from before I added nullability annotations. Please make sure you're using the latest version (2.0.2 as of this writing).
Use more descriptive names for your variables. For example, portEvString is not a good name, because it's difficult to understand (what does "Ev" mean?), and its type is not a string, it's an array of ORSSerialPort objects (ie. [ORSSerialPort].
Your SendString method shouldn't start with a capital letter. Function (and method) names in Swift should always start with a lowercase letter.
After the disable SandBox, everything is OK.
I am attempting to implement Square Connect iOS SDK, and after implementing and clicking the pay button it opens up the Square Payment app and redirects to a blank page .. have you guys had the same issues ?
My App delegate has the proper section:
func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
guard let sourceApplication = options[.sourceApplication] as? String,
sourceApplication.hasPrefix("com.squareup.square") else {
return false
}
do {
let response = try SCCAPIResponse(responseURL: url)
if let error = response.error {
// Handle a failed request.
print(error.localizedDescription)
} else {
// Handle a successful request.
}
} catch let error as NSError {
// Handle unexpected errors.
print(error.localizedDescription)
}
return true
}
I have created a proper URL scheme inside the Square portal. Also my view controller has the correct code:
func charge()
{
// connect v1
if let callbackURL = URL(string: "myscheme://")
{
do
{
SCCAPIRequest.setClientID("xxxxxxxxxxx")
let amount = try SCCMoney(amountCents: 100, currencyCode: "USD")
let request = try SCCAPIRequest(
callbackURL: callbackURL,
amount: amount,
userInfoString: nil,
locationID: nil,
notes: "Purchase for cleaning",
customerID: nil, supportedTenderTypes: .all,
clearsDefaultFees: true,
returnAutomaticallyAfterPayment: true)
try SCCAPIConnection.perform(request)
}
catch let error as NSError {
print(error.localizedDescription)
}
}
}
https://snag.gy/R4A30L.jpg
Andrei
You need to make sure you delete all apps from the phone with having duplicate bundle ids. This way you will make sure you go back to the original app which triggered the payment.
My app reports and records location, altitude, rotation and accelerometer data (DeviceMotion) while in the background. This works fine on ios 10.3.3. On IOS 11, I no longer have access motion data while the device is locked. Altitude data and location data is still streaming to the console, though.
Has something changed in IOS 11 that prevents me from accessing motion data or am I doing trying to access it in a way that Apple now blocks like OperationQueue.main
Here is how I'm starting motion updates. If the phone is unlocked, all works fine. If I locking the phone, no more updates.:
let motionManager = self.motionManager
if motionManager.isDeviceMotionAvailable {
motionUpdateInterval = 0.15
motionManager.deviceMotionUpdateInterval = motionUpdateInterval
motionManager.startDeviceMotionUpdates(using: .xArbitraryZVertical, to: OperationQueue.main) {deviceMotion, error in
guard let deviceMotion = deviceMotion else { return }
I can't find anything about Motion background modes changing but it seems there must be a way otherwise RunKeeper, Strava will break. Can someone help me get this working again before IOS11 launch?
Thanks!
Also came across this problem.
Our solution was to ensure we have another background mode enabled and running (in our case location updates + audio) and restart core motion updates when switching background/foreground.
Code sample:
import UIKit
import CoreMotion
final class MotionDetector {
private let motionManager = CMMotionManager()
private let opQueue: OperationQueue = {
let o = OperationQueue()
o.name = "core-motion-updates"
return o
}()
private var shouldRestartMotionUpdates = false
init() {
NotificationCenter.default.addObserver(self,
selector: #selector(appDidEnterBackground),
name: .UIApplicationDidEnterBackground,
object: nil)
NotificationCenter.default.addObserver(self,
selector: #selector(appDidBecomeActive),
name: .UIApplicationDidBecomeActive,
object: nil)
}
deinit {
NotificationCenter.default.removeObserver(self,
name: .UIApplicationDidEnterBackground,
object: nil)
NotificationCenter.default.removeObserver(self,
name: .UIApplicationDidBecomeActive,
object: nil)
}
func start() {
self.shouldRestartMotionUpdates = true
self.restartMotionUpdates()
}
func stop() {
self.shouldRestartMotionUpdates = false
self.motionManager.stopDeviceMotionUpdates()
}
#objc private func appDidEnterBackground() {
self.restartMotionUpdates()
}
#objc private func appDidBecomeActive() {
self.restartMotionUpdates()
}
private func restartMotionUpdates() {
guard self.shouldRestartMotionUpdates else { return }
self.motionManager.stopDeviceMotionUpdates()
self.motionManager.startDeviceMotionUpdates(using: .xArbitraryZVertical, to: self.opQueue) { deviceMotion, error in
guard let deviceMotion = deviceMotion else { return }
print(deviceMotion)
}
}
}
The official 11.1 release fixed the issue and I've heard from iPhone 8 users that the original implementation is working for them.
The 11.2 beta has not broken anything.