railbird/react-native-vision-camera
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Pause/Resume Audio Session on interruption

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This commit is contained in:
Marc Rousavy 2021-03-26 16:10:12 +01:00
parent 8066f3fb53
commit 56c67f25c7
1 changed files with 36 additions and 1 deletions
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37
ios/CameraView.swift
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@ -49,12 +49,19 @@ final class CameraView: UIView {
selector: #selector(sessionRuntimeError),
name: .AVCaptureSessionRuntimeError,
object: captureSession)
NotificationCenter.default.addObserver(self,
selector: #selector(audioSessionInterrupted),
name: AVAudioSession.interruptionNotification,
object: AVAudioSession.sharedInstance)
}
deinit {
NotificationCenter.default.removeObserver(self,
name: .AVCaptureSessionRuntimeError,
object: captureSession)
NotificationCenter.default.removeObserver(self,
name: AVAudioSession.interruptionNotification,
object: AVAudioSession.sharedInstance)
}
@available(*, unavailable)
@ -99,7 +106,7 @@ final class CameraView: UIView {
ReactLogger.log(level: .info, message: "Starting Session...")
self.configureAudioSession()
self.captureSession.startRunning()
ReactLogger.log(level: .info, message: "Starting Session!")
ReactLogger.log(level: .info, message: "Started Session!")
} else {
ReactLogger.log(level: .info, message: "Stopping Session...")
self.captureSession.stopRunning()
@ -205,6 +212,33 @@ final class CameraView: UIView {
}
invokeOnError(.unknown(message: error.description), cause: error as NSError)
}
@objc
func audioSessionInterrupted(notification: Notification) {
ReactLogger.log(level: .error, message: "The Audio Session was interrupted!")
guard let userInfo = notification.userInfo,
let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
let type = AVAudioSession.InterruptionType(rawValue: typeValue) else {
return
}
switch type {
case .began:
// TODO: Should we also disable the camera here? I think it will throw a runtime error
// disable audio session
try? AVAudioSession.sharedInstance().setActive(false)
break
case .ended:
guard let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt else { return }
let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
if options.contains(.shouldResume) {
// restart audio session because interruption is over
configureAudioSession()
} else {
ReactLogger.log(level: .error, message: "Cannot resume interrupted Audio Session!")
}
break
}
}
internal final func setTorchMode(_ torchMode: String) {
guard let device = videoDeviceInput?.device else {
@ -293,6 +327,7 @@ final class CameraView: UIView {
// allow background music playback
try audioSession.setCategory(AVAudioSession.Category.playAndRecord, options: [.mixWithOthers, .allowBluetoothA2DP, .defaultToSpeaker])
}
// TODO: Use https://developer.apple.com/documentation/avfaudio/avaudiosession/3726094-setprefersnointerruptionsfromsys
audioSession.trySetAllowHaptics(true)
// activate current audio session because camera is active
try audioSession.setActive(true)