Hello, I got the same issue. I paste herebelow the code to reproduce.
There are 2 files.
When run on iOS 15.5, it will print "from inside didFinish speaking".
When run on iOS14.3, it will print ""from inside didCancel" which is the correct behaviour according to Apple doc (https://developer.apple.com/documentation/avfaudio/avspeechsynthesizerdelegate/1619678-speechsynthesizer).
Done with Xcode 13.4
1st file------------------------
import UIKit
import AVFoundation
class bugReporting: AVSpeechSynthesizer {
static var shared = bugReporting()
private override init() {
super.init()
delegate = self
}
let utterance = AVSpeechUtterance(string: "This is to demo the bug of iOS15 not calling didCancel method when stopSpeaking method is called on synthesizer")
func forTrial() {
utterance.voice = AVSpeechSynthesisVoice(language: "english")
self.speak(utterance)
DispatchQueue.main.asyncAfter(deadline: .now() + 5) {
self.stopSpeaking(at: .immediate)
}
}
}
extension bugReporting: AVSpeechSynthesizerDelegate {
func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didCancel utterance: AVSpeechUtterance) {
print("from inside didCancel")
}
func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didFinish utterance: AVSpeechUtterance) {
print("from inside didFinish speaking")
}
}
--------end of 1st file---------
2nd file------------------
import UIKit
class simpleView: UIViewController {
override func viewDidLoad() {
let speaker = bugReporting.shared
speaker.forTrial()
}
}
-----------end of 2nd file
EmmanuelFrance
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