I created an app with text-to-speech assist. And Xcode gave me this “Thread Efficiency warning” as soon as app is launched or begin communicate a textual content, I am utilizing an actual iPhone. It appears like thread concerning AVSpeechSynthesizer has the upper precedence than the thread to attract the UI.
Easy methods to repair this, please recommendation? Under is a few code snippet from my app.
@principal
struct SpeakhbyApp: App {
@StateObject var voiceManager = VoiceManager()
@StateObject var textViewModel = TextViewModel()
@StateObject var homeViewState = HomeViewState.shared
var physique: some Scene {
WindowGroup {
HomeScreenView()
.environmentObject(voiceManager)
.environmentObject(textViewModel)
.environmentObject(homeViewState)
}
}
}
class VoiceManager: NSObject, ObservableObject, AVSpeechSynthesizerDelegate {
// Create a speech synthesizer.
personal let synthesizer = AVSpeechSynthesizer()
// Used as spotlight phrase of Textual content-to-Speech
@Printed var attributedText: NSAttributedString?
override init() {
tremendous.init()
synthesizer.delegate = self
}
personal func createUtterance(_ textual content: String) -> AVSpeechUtterance {
// Create an utterance.
let utterance = AVSpeechUtterance(string: textual content)
// Configure the utterance.
utterance.charge = 0.5
utterance.pitchMultiplier = 0.8
utterance.postUtteranceDelay = 0.2
utterance.quantity = 0.8
// Retrieve the British English voice.
let voice = AVSpeechSynthesisVoice(language: "en-US")
// Assign the voice to the utterance.
utterance.voice = voice
return utterance
}
func communicate(_ textual content: String) {
let utterance = createUtterance(textual content)
synthesizer.communicate(utterance)
}
func pauseSpeaking(at boundary: AVSpeechBoundary = .phrase) {
synthesizer.pauseSpeaking(at: boundary)
}
func continueSpeaking() {
synthesizer.continueSpeaking()
}
func stopSpeaking() {
synthesizer.stopSpeaking(at: .phrase)
}
var isSpeaking: Bool {
synthesizer.isSpeaking
}
var isPaused: Bool {
synthesizer.isPaused
}
var isNotStarted: Bool {
!synthesizer.isSpeaking
}
// MARK: Delegate features to spotlight textual content
func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, willSpeakRangeOfSpeechString characterRange: NSRange, utterance: AVSpeechUtterance) {
let mutableAttributedString = NSMutableAttributedString(string: utterance.speechString)
// mutableAttributedString.addAttribute(.foregroundColor, worth: UIColor.blue, vary: characterRange)
mutableAttributedString.addAttribute(.backgroundColor, worth: UIColor.yellow, vary: characterRange)
attributedText = mutableAttributedString
}
func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didFinish utterance: AVSpeechUtterance) {
attributedText = NSAttributedString(string: utterance.speechString)
HomeViewState.shared.isSpeaking = false
}
}
struct TextView: UIViewRepresentable {
@EnvironmentObject personal var textViewModel: TextViewModel
@EnvironmentObject personal var voiceManager: VoiceManager
func makeCoordinator() -> Coordinator {
Coordinator(self)
}
func makeUIView(context: Context) -> UITextView {
let textView = UITextView()
textView.delegate = context.coordinator
textView.font = UIFont(identify: "Instances New Roman", dimension: 18)
textView.textContainerInset = .init(prime: 10, left: 10, backside: 10, proper: 10)
textView.isScrollEnabled = true
textView.isEditable = true
textView.isUserInteractionEnabled = true
textView.backgroundColor = .lightGreen20
return textView
}
func updateUIView(_ uiView: UITextView, context: Context) {
if !voiceManager.isSpeaking {
let attStr = NSMutableAttributedString(string: textViewModel.textual content)
let pStyle = NSMutableParagraphStyle()
pStyle.lineSpacing = 3
attStr.addAttribute(.paragraphStyle, worth: pStyle, vary: NSMakeRange(0, attStr.size))
attStr.addAttribute(.font, worth: UIFont(identify: "TimesNewRomanPS-BoldMT", dimension: 18)!, vary: NSMakeRange(0, attStr.size))
uiView.attributedText = attStr
} else {
let attStr = NSMutableAttributedString(attributedString: voiceManager.attributedText!)
let pStyle = NSMutableParagraphStyle()
pStyle.lineSpacing = 3
attStr.addAttribute(.paragraphStyle, worth: pStyle, vary: NSMakeRange(0, attStr.size))
attStr.addAttribute(.font, worth: UIFont(identify: "TimesNewRomanPS-BoldMT", dimension: 18)!, vary: NSMakeRange(0, attStr.size))
uiView.attributedText = attStr
}
}
Thread Efficiency Checker: Thread operating at Person-interactive quality-of-service class ready on a decrease QoS thread operating at Default quality-of-service class. Examine methods to keep away from precedence inversions
PID: 624, TID: 32010
Backtrace
=================================================================
3 Basis 0x00000001957e5370 31D526A2-AB5C-3B1D-BCA5-B1E082D94712 + 7668592
4 Basis 0x0000000195170820 31D526A2-AB5C-3B1D-BCA5-B1E082D94712 + 899104
5 Basis 0x00000001951920bc 31D526A2-AB5C-3B1D-BCA5-B1E082D94712 + 1036476
6 TextToSpeech 0x00000001b74d2268 TTSSpeechTransformTextWithLanguageAndVoiceIdentifier + 5132
7 TextToSpeech 0x00000001b74d7910 AXAVSpeechSynthesisVoiceFromTTSSpeechVoice + 13132
8 TextToSpeech 0x00000001b74cfa10 _TTSIdentifierForVoiceInformation + 17508
9 Speakhby 0x0000000100fa7ffc $s8Speakhby12VoiceManagerC10isSpeakingSbvg + 60
10 Speakhby 0x0000000100f94be0 $s8Speakhby8TextViewV12updateUIView_7contextySo06UITextC0C_7SwiftUI0E20RepresentableContextVyACGtF + 228
11 Speakhby 0x0000000100f96148 $s8Speakhby8TextViewV7SwiftUI19UIViewRepresentableAadEP06updateF0_7contexty0F4TypeQz_AD0fG7ContextVyxGtFTW + 28
12 SwiftUI 0x000000019b88593c 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 25483580
13 SwiftUI 0x000000019b78d998 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24467864
14 SwiftUI 0x000000019b78d854 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24467540
15 SwiftUI 0x000000019b76c744 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24332100
16 SwiftUI 0x000000019b78d6dc 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24467164
17 SwiftUI 0x000000019b78d3c4 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24466372
18 SwiftUI 0x000000019b78c05c 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24461404
19 SwiftUI 0x000000019a178bf8 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 1313784
20 AttributeGraph 0x00000001becdc240 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 49728
21 AttributeGraph 0x00000001becd2f38 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 12088
22 AttributeGraph 0x00000001becd2810 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 10256
23 AttributeGraph 0x00000001becd23a4 AGGraphGetValue + 228
24 SwiftUI 0x000000019b78e3ac 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24470444
25 SwiftUI 0x000000019b78e59c 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24470940
26 SwiftUI 0x000000019a178bf8 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 1313784
27 AttributeGraph 0x00000001becdc240 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 49728
28 AttributeGraph 0x00000001becd2f38 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 12088
29 AttributeGraph 0x00000001becd2630 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 9776
30 AttributeGraph 0x00000001becdcf9c AGGraphGetInputValue + 248
31 SwiftUI 0x000000019aad4bf8 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 11127800
32 SwiftUI 0x000000019ac49a38 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12655160
33 SwiftUI 0x000000019ac4a294 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12657300
34 SwiftUI 0x000000019af54168 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 15843688
35 SwiftUI 0x000000019af53fec 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 15843308
36 SwiftUI 0x000000019af53c90 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 15842448
37 SwiftUI 0x000000019b8cc940 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 25774400
38 SwiftUI 0x000000019b8ce350 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 25781072
39 SwiftUI 0x000000019aec804c 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 15269964
40 SwiftUI 0x000000019ad20494 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 13534356
41 SwiftUI 0x000000019ad1fc90 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 13532304
42 SwiftUI 0x000000019ad20c3c 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 13536316
43 SwiftUI 0x000000019ad1e8b0 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 13527216
44 SwiftUI 0x000000019ac329b4 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12560820
45 SwiftUI 0x000000019ac330c4 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12562628
46 SwiftUI 0x000000019b2813a4 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 19174308
47 SwiftUI 0x000000019b281170 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 19173744
48 SwiftUI 0x000000019b8ce2ac 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 25780908
49 SwiftUI 0x000000019aad501c 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 11128860
50 SwiftUI 0x000000019b8f8674 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 25953908
51 SwiftUI 0x000000019b2813a4 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 19174308
52 SwiftUI 0x000000019b281170 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 19173744
53 SwiftUI 0x000000019b8ce2ac 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 25780908
54 SwiftUI 0x000000019acbcf14 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 13127444
55 SwiftUI 0x000000019afc1fc0 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 16293824
56 AttributeGraph 0x00000001becdc240 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 49728
57 AttributeGraph 0x00000001becd2f38 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 12088
58 AttributeGraph 0x00000001becd2810 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 10256
59 AttributeGraph 0x00000001becd23a4 AGGraphGetValue + 228
60 SwiftUI 0x000000019ac00dfc 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12357116
61 SwiftUI 0x000000019ac01044 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12357700
62 SwiftUI 0x000000019a2630ac 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 2273452
63 AttributeGraph 0x00000001becdc240 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 49728
64 AttributeGraph 0x00000001becd2f38 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 12088
65 AttributeGraph 0x00000001becd2810 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 10256
66 AttributeGraph 0x00000001becd23a4 AGGraphGetValue + 228
67 SwiftUI 0x000000019b73bd60 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24132960
68 SwiftUI 0x000000019a5b1ae8 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 5741288
69 AttributeGraph 0x00000001becdc240 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 49728
70 AttributeGraph 0x00000001becd2f38 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 12088
71 AttributeGraph 0x00000001becdd948 8E86675A-D6CF-38E1-818E-4C09C7294F17 + 55624
72 SwiftUI 0x000000019acba918 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 13117720
73 SwiftUI 0x000000019b76b674 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24327796
74 SwiftUI 0x000000019b76b028 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24326184
75 SwiftUI 0x000000019b769170 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24318320
76 SwiftUI 0x000000019b7d9164 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24777060
77 SwiftUI 0x000000019b7d91c4 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 24777156
78 UIKitCore 0x00000001984ad0f8 86B7C8DD-E910-31BD-B8FE-28962256DEE3 + 209144
79 QuartzCore 0x00000001978d7e30 F6A8231B-CB24-3EAE-BA29-0E9E675213A3 + 421424
80 QuartzCore 0x00000001978d79b4 F6A8231B-CB24-3EAE-BA29-0E9E675213A3 + 420276
81 QuartzCore 0x00000001978ddbb4 F6A8231B-CB24-3EAE-BA29-0E9E675213A3 + 445364
82 QuartzCore 0x00000001978d71bc F6A8231B-CB24-3EAE-BA29-0E9E675213A3 + 418236
83 UIKitCore 0x0000000198793d40 86B7C8DD-E910-31BD-B8FE-28962256DEE3 + 3251520
84 CoreFoundation 0x00000001962356b8 7A70D5D4-0550-38DC-AB33-71B72AFF1F5F + 227000
85 CoreFoundation 0x0000000196233eac 7A70D5D4-0550-38DC-AB33-71B72AFF1F5F + 220844
86 CoreFoundation 0x0000000196231d9c 7A70D5D4-0550-38DC-AB33-71B72AFF1F5F + 212380
87 CoreFoundation 0x0000000196231968 CFRunLoopRunSpecific + 608
88 GraphicsServices 0x00000001da52f4e0 GSEventRunModal + 164
89 UIKitCore 0x00000001986a4edc 86B7C8DD-E910-31BD-B8FE-28962256DEE3 + 2272988
90 UIKitCore 0x00000001986a4518 UIApplicationMain + 340
91 SwiftUI 0x000000019b06b860 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 16988256
92 SwiftUI 0x000000019b06b6a8 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 16987816
93 SwiftUI 0x000000019ac879fc 9B6AC5DA-C8CE-3B73-8B29-487E9281983F + 12909052
94 Speakhby 0x0000000100fa4488 $s8Speakhby0A3AppV5$mainyyFZ + 40
95 Speakhby 0x0000000100fa48ec principal + 12
96 dyld 0x00000001b9752d84 960A7452-3178-3C9D-8CE5-FE40FDE8DBC8 + 23940
