mobile: keep screen on while playing/recording media (#3317)

* android: keep screen on while playing/recording media

* ios: keep screen on while playing/recording media

* different implementation on ios

* Revert "android: keep screen on while playing/recording media"

This reverts commit d291f006e9.

* different implementation on android

* refactor

---------

Co-authored-by: Avently <avently@local>
Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

apps/ios/Shared/AppDelegate.swift

@@ -120,6 +120,10 @@ class AppDelegate: NSObject, UIApplicationDelegate {
 
         BGManager.shared.receiveMessages(complete)
     }
+
+    static func keepScreenOn(_ on: Bool) {
+        UIApplication.shared.isIdleTimerDisabled = on
+    }
 }
 
 class SceneDelegate: NSObject, ObservableObject, UIWindowSceneDelegate {

apps/ios/Shared/Model/AudioRecPlay.swift

@@ -46,6 +46,7 @@ class AudioRecorder {
             audioRecorder?.record(forDuration: MAX_VOICE_MESSAGE_LENGTH)
 
             await MainActor.run {
+                AppDelegate.keepScreenOn(true)
                 recordingTimer = Timer.scheduledTimer(withTimeInterval: 0.01, repeats: true) { timer in
                     guard let time = self.audioRecorder?.currentTime else { return }
                     self.onTimer?(time)
@@ -57,6 +58,9 @@ class AudioRecorder {
             }
             return nil
         } catch let error {
+            await MainActor.run {
+                AppDelegate.keepScreenOn(false)
+            }
             logger.error("AudioRecorder startAudioRecording error \(error.localizedDescription)")
             return .error(error.localizedDescription)
         }
@@ -71,6 +75,7 @@ class AudioRecorder {
             timer.invalidate()
         }
         recordingTimer = nil
+        AppDelegate.keepScreenOn(false)
     }
 
     private func checkPermission() async -> Bool {
@@ -121,6 +126,7 @@ class AudioPlayer: NSObject, AVAudioPlayerDelegate {
 
         playbackTimer = Timer.scheduledTimer(withTimeInterval: 0.01, repeats: true) { timer in
             if self.audioPlayer?.isPlaying ?? false {
+                AppDelegate.keepScreenOn(true)
                 guard let time = self.audioPlayer?.currentTime else { return }
                 self.onTimer?(time)
             }
@@ -129,6 +135,7 @@ class AudioPlayer: NSObject, AVAudioPlayerDelegate {
 
     func pause() {
         audioPlayer?.pause()
+        AppDelegate.keepScreenOn(false)
     }
 
     func play() {
@@ -149,6 +156,7 @@ class AudioPlayer: NSObject, AVAudioPlayerDelegate {
     func stop() {
         if let player = audioPlayer {
             player.stop()
+            AppDelegate.keepScreenOn(false)
         }
         audioPlayer = nil
         if let timer = playbackTimer {

apps/ios/Shared/Views/Call/ActiveCallView.swift

@@ -39,6 +39,7 @@ struct ActiveCallView: View {
         }
         .onAppear {
             logger.debug("ActiveCallView: appear client is nil \(client == nil), scenePhase \(String(describing: scenePhase), privacy: .public), canConnectCall \(canConnectCall)")
+            AppDelegate.keepScreenOn(true)
             createWebRTCClient()
             dismissAllSheets()
         }
@@ -48,6 +49,7 @@ struct ActiveCallView: View {
         }
         .onDisappear {
             logger.debug("ActiveCallView: disappear")
+            AppDelegate.keepScreenOn(false)
             client?.endCall()
         }
         .onChange(of: m.callCommand) { _ in sendCommandToClient()}

apps/ios/Shared/Views/Helpers/VideoPlayerView.swift

@@ -6,6 +6,7 @@
 import Foundation
 import SwiftUI
 import AVKit
+import Combine
 
 struct VideoPlayerView: UIViewRepresentable {
 
@@ -37,6 +38,9 @@ struct VideoPlayerView: UIViewRepresentable {
             player.seek(to: CMTime.zero)
             player.play()
         }
+        context.coordinator.publisher = player.publisher(for: \.timeControlStatus).sink { status in
+            AppDelegate.keepScreenOn(status == .playing)
+        }
         return controller.view
     }
 
@@ -50,11 +54,13 @@ struct VideoPlayerView: UIViewRepresentable {
     class Coordinator: NSObject {
         var controller: AVPlayerViewController?
         var timeObserver: Any? = nil
+        var publisher: AnyCancellable? = nil
 
         deinit {
             if let timeObserver = timeObserver {
                 NotificationCenter.default.removeObserver(timeObserver)
             }
+            publisher?.cancel()
         }
     }
 }