Switch Camera

To do so, you need to set the cameraFacing setting in the HMSVideoTrackSettings when building the trackSettings for the SDK. The following code demonstrates how to set the camera facing to the back:

var hmsSDK: HMSSDK?
...

hmsSDK = HMSSDK.build { sdk in
  sdk.trackSettings = HMSTrackSettings.build { videoSettingsBuilder, audioSettingsBuilder in
    videoSettingsBuilder.cameraFacing = .back
    ...
  }
}

How to toggle between cameras using 100ms SDK?

To toggle between the front and back cameras during a call, you can use the switchCamera method on the HMSLocalVideoTrack instance. The following code demonstrates how to toggle the camera:

if let localTrack = hmsSDK.localPeer?.videoTrack as? HMSLocalVideoTrack {
  localTrack.switchCamera()
}

How to know when switch camera operation has been completed?

You can pass a completion handler to switchCamera method like below:

if let localTrack = hmsSDK.localPeer?.videoTrack as? HMSLocalVideoTrack {
  localTrack.switchCamera() { error in
      // Switch camera operation has been completed
  }
}

You can utilise this completion handler to time a transition effect while camera is switching for example.

👀 To see a complete example of switching cameras in an iOS app using 100ms SDK, checkout our example project.

You call switchCamera method on HMSRoomModel instance.

try await roomModel.switchCamera()