VisionLab-DoreSegment-Extension+AgoraViewerHelper-initial.swift

class AgoraViewerHelper: AgoraVideoViewerDelegate {
  static var agview: AgoraViewer = {
    var agSettings = AgoraSettings()
    agSettings.videoConfiguration = .init(
      size: CGSize(width: 480, height: 360), frameRate: .fps24,
      bitrate: AgoraVideoBitrateStandard, orientationMode: .fixedPortrait,
      mirrorMode: .auto
    )
    agSettings.enabledButtons = [.cameraButton, .micButton, .flipButton]
    return AgoraViewer(
      connectionData: AgoraConnectionData(
        appId: AppKeys.agoraAppId, rtcToken: AppKeys.agoraToken
      ),
      style: .floating,
      agoraSettings: agSettings,
      delegate: AgoraViewerHelper.delegate
    )
  }()
  
  var virtualBackgroundEnabled: Bool = false
  static var delegate = AgoraViewerHelper()

  func extraButtons() -> [UIButton] {
    let button = UIButton()
    button.setImage(UIImage(
      systemName: "wand.and.stars",
      withConfiguration: UIImage.SymbolConfiguration(scale: .large)
    ), for: .normal)
    button.isSelected = self.virtualBackgroundEnabled
    button.backgroundColor = self.virtualBackgroundEnabled ? .systemGreen : .systemGray
    button.addTarget(self, action: #selector(self.toggleBackground), for: .touchUpInside)
    return [button]
  }

  @objc func toggleBackground(_ sender: UIButton) {
    virtualBackgroundEnabled.toggle()
    sender.backgroundColor = self.virtualBackgroundEnabled ? .systemGreen : .systemGray
    
    // more doresegment code will go here
  }

  func registerDoreSegment() {
    // nothing yet
  }

  func joinedChannel(channel: String) {
    registerDoreSegment()
    // more doresegment code will go here
  }
}

VisionLab-DoreSegment-Extension+ContentView-initial.swift

struct ContentView: View {
  @State var joinedChannel: Bool = false

  var body: some View {
    ZStack {
      AgoraViewerHelper.agview
      if !joinedChannel {
        Button("Join Channel") {
          self.joinChannel()
        }
      }
    }
  }

  func joinChannel() {
    self.joinedChannel = true
    AgoraViewerHelper.agview.join(
      channel: "test", with: AppKeys.agoraToken,
      as: .broadcaster
    )
  }
}