Use one instance for the microphoneChecker to avoid the overhead of i…

…ts creation

DemoApp/Sources/Components/DemoAppViewFactory.swift

@@ -12,6 +12,7 @@ final class DemoAppViewFactory: ViewFactory {
     static let shared = DemoAppViewFactory()
 
     @Injected(\.colors) var colors
+    @Injected(\.microphoneChecker) var microphoneChecker
 
     func makeWaitingLocalUserView(viewModel: CallViewModel) -> some View {
         DemoWaitingLocalUserView(viewFactory: self, viewModel: viewModel)

DemoApp/Sources/Views/CustomCallView.swift

@@ -9,11 +9,11 @@ import SwiftUI
 struct CustomCallView<Factory: ViewFactory>: View {
 
     @Injected(\.colors) var colors
+    @Injected(\.microphoneChecker) var microphoneChecker
 
     var viewFactory: Factory
     @ObservedObject var viewModel: CallViewModel
-
-    @StateObject var microphoneChecker = MicrophoneChecker()
+
     @State var mutedIndicatorShown = false
 
     var body: some View {

Sources/StreamVideo/Utils/ThermalStateObserver.swift

@@ -90,7 +90,7 @@ final class ThermalStateObserver: ObservableObject, ThermalStateObserving {
     }
 }
 
-/// Provides the default value of the `Appearance` class.
+/// Provides the default value of the `ThermalStateObserving` protocol.
 public struct ThermalStateObserverKey: InjectionKey {
     public static var currentValue: any ThermalStateObserving = ThermalStateObserver.shared
 }

Sources/StreamVideoSwiftUI/CallingViews/MicrophoneChecker.swift

@@ -173,3 +173,20 @@ protocol AudioSessionProtocol {
 }
 
 extension AVAudioSession: AudioSessionProtocol {}
+
+/// Provides the default value of the `ThermalStateObserving` protocol.
+public struct MicrophoneCheckerKey: InjectionKey {
+    public static var currentValue: MicrophoneChecker = MicrophoneChecker()
+}
+
+extension InjectedValues {
+
+    public var microphoneChecker: MicrophoneChecker {
+        get {
+            Self[MicrophoneCheckerKey.self]
+        }
+        set {
+            Self[MicrophoneCheckerKey.self] = newValue
+        }
+    }
+}

Sources/StreamVideoSwiftUI/CallingViews/PreJoiningView.swift

@@ -10,8 +10,8 @@ import SwiftUI
 public struct LobbyView: View {
 
     @StateObject var viewModel: LobbyViewModel
-    @StateObject var microphoneChecker = MicrophoneChecker()
-    
+    @Injected(\.microphoneChecker) var microphoneChecker
+
     var callId: String
     var callType: String
     @Binding var callSettings: CallSettings

Sources/StreamVideoSwiftUI/CallingViews/iOS13/PreJoiningView_iOS13.swift

@@ -11,7 +11,7 @@ struct LobbyView_iOS13: View {
 
     @ObservedObject var callViewModel: CallViewModel
     @BackportStateObject var viewModel: LobbyViewModel
-    @BackportStateObject var microphoneChecker = MicrophoneChecker()
+    @Injected(\.microphoneChecker) var microphoneChecker: MicrophoneChecker
 
     var callId: String
     var callType: String