feat: resume after interruptions on iOS (#20)

* feat: resume after interruptions on iOS * chore: release 1.0.4-beta.0
itsramiel · Jan 23, 2025 · ee823be · ee823be
1 parent 777f9bd
commit ee823be
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Showing 3 changed files with 47 additions and 6 deletions.
diff --git a/example/ios/Podfile.lock b/example/ios/Podfile.lock
@@ -1242,7 +1242,7 @@ PODS:
     - ReactCommon/turbomodule/bridging
     - ReactCommon/turbomodule/core
     - Yoga
-  - react-native-audio-playback (1.0.0):
+  - react-native-audio-playback (1.0.3):
     - DoubleConversion
     - glog
     - hermes-engine
@@ -1789,7 +1789,7 @@ SPEC CHECKSUMS:
   fmt: 10c6e61f4be25dc963c36bd73fc7b1705fe975be
   glog: 08b301085f15bcbb6ff8632a8ebaf239aae04e6a
   hermes-engine: 3852e37f6158a2fcfad23e31215ed495da3a6a40
-  RCT-Folly: bf5c0376ffe4dd2cf438dcf86db385df9fdce648
+  RCT-Folly: 84578c8756030547307e4572ab1947de1685c599
   RCTDeprecation: d575d28132f93e5deef4849d5afffb4ac4e63226
   RCTRequired: e2e5df1df76aac8685aabfebca389e6bec64792b
   RCTTypeSafety: 30e36ceafa26979860e13fb3f234fb61692924c2
@@ -1818,7 +1818,7 @@ SPEC CHECKSUMS:
   React-logger: addd140841248966c2547eb94836399cc1061f4d
   React-Mapbuffer: 029b5332e78af8c67c4b5e65edfc717068b8eac1
   React-microtasksnativemodule: f30949ee318ba90b9668de1e325b98838b9a4da2
-  react-native-audio-playback: 2e227d97930550dc443ae76be9a07b25f51c469e
+  react-native-audio-playback: 3aa13924ebd09343ce93ab18e89a99536db42134
   react-native-slider: d1a9121980fc81678c6d30b82f312c778fba563c
   React-nativeconfig: 470fce6d871c02dc5eff250a362d56391b7f52d6
   React-NativeModulesApple: 1586448c61a7c2bd4040cc03ccde66a72037e77e
@@ -1852,4 +1852,4 @@ SPEC CHECKSUMS:
 
 PODFILE CHECKSUM: db41a2e031518fb452cb8d57b6501f7d2b8a89b0
 
-COCOAPODS: 1.15.2
+COCOAPODS: 1.14.3
diff --git a/ios/AudioEngine.swift b/ios/AudioEngine.swift
@@ -14,6 +14,10 @@ enum AudioStreamState {
   case initialized, opened, closed, paused
 }
 
+struct InterruptionState {
+  let wasOpen: Bool
+}
+
 enum AudioEngineError: LocalizedError {
   case audioStreamAlreadyInitialized
   case failedToSetupAudioStream(reason: String)
@@ -52,12 +56,49 @@ class AudioEngine {
   private var audioUnit: AudioUnit?
   private var players = [String: Player]()
   private var audioStreamState: AudioStreamState = .closed
+  private var interruptionState: InterruptionState?
 
   init() {
     // configure Audio Session
     let audioSession = AVAudioSession.sharedInstance()
     try? audioSession.setCategory(.playback)
     try? audioSession.setActive(true)
+
+    NotificationCenter.default.addObserver(
+      self,
+      selector: #selector(handleAudioSessionInterruption),
+      name: AVAudioSession.interruptionNotification,
+      object: nil
+    )
+  }
+
+  @objc private func handleAudioSessionInterruption(notification: Notification) {
+    guard let userInfo = notification.userInfo,
+          let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
+          let type = AVAudioSession.InterruptionType(rawValue: typeValue) else {
+      return
+    }
+
+    switch type {
+    case .began:
+      let isOpen = audioStreamState == .opened
+      if isOpen {
+        try? pauseAudioStream()
+      }
+      self.interruptionState = .init(wasOpen: isOpen)
+    case .ended:
+      guard let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt, let interruptionState else { return }
+      let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
+      if options.contains(.shouldResume)
+          && audioStreamState != .closed
+          && interruptionState.wasOpen {
+        try? openAudioStream()
+      }
+
+      self.interruptionState = nil
+    @unknown default:
+      break
+    }
   }
 
   public func setupAudioStream(sampleRate: Double, channelCount: Int) throws {
@@ -145,7 +186,6 @@ class AudioEngine {
 
     let audioPlayer = Unmanaged<AudioEngine>.fromOpaque(inRefCon).takeUnretainedValue()
     guard let outputBuffer = ioData?.pointee.mBuffers.mData?.assumingMemoryBound(to: Float32.self) else {
-      print("Audio buffer is nil")
       return noErr
     }
 
@@ -160,6 +200,7 @@ class AudioEngine {
   }
 
   @objc public func openAudioStream() throws {
+    print(audioStreamState)
     guard audioStreamState == .initialized || audioStreamState == .paused else {
       throw AudioEngineError.failedToOpenAudioStream(reason: "Stream is not initialized")
     }

diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-audio-playback",
-  "version": "1.0.3",
+  "version": "1.0.4-beta.0",
   "description": "Play sounds with lowest latency in React Native using Google Oboe for Android and Audio Unit for iOS",
   "source": "./src/index.tsx",
   "main": "./lib/commonjs/index.js",