[Liveness] Liveness SDK always opens with the front camera even when Camera.Back is passed in challengeOptions

[EmanoelLoreto]

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• I have searched for duplicate or closed issues.
• I have read the guide for submitting bug reports.

Which UI component?

Liveness

Gradle script dependencies

    implementation 'com.amplifyframework.ui:liveness:1.6.0'
    implementation 'com.amplifyframework:aws-api:1.24.0'

Environment information

# Put output below this line
------------------------------------------------------------
Gradle 8.12
------------------------------------------------------------

Build time:    2024-12-20 15:46:53 UTC
Revision:      a3cacb207fec727859be9354c1937da2e59004c1

Kotlin:        2.0.21
Groovy:        3.0.22
Ant:           Apache Ant(TM) version 1.10.15 compiled on August 25 2024
Launcher JVM:  17.0.15 (Homebrew 17.0.15+0)
Daemon JVM:    /opt/homebrew/Cellar/openjdk@17/17.0.15/libexec/openjdk.jdk/Contents/Home (no JDK specified, using current Java home)
OS:            Mac OS X 15.3 aarch64

Please include any relevant guides or documentation you're referencing

No response

Describe the bug

When using the FaceLivenessDetector component, the camera always defaults to the front camera, regardless of the value provided in challengeOptions.

For example, even when explicitly setting the camera parameter to Camera.Back, the liveness session still opens with the front camera:

FaceLivenessDetector(
    sessionId = sessionId,
    region = region,
    credentialsProvider = credentialsProvider,
    disableStartView = false,
    onComplete = onComplete,
    onError = onError,
    challengeOptions = ChallengeOptions(
        faceMovementAndLight = LivenessChallenge.FaceMovementAndLight,
        faceMovement = LivenessChallenge.FaceMovement(camera = Camera.Back)
    )
)

Reproduction steps (if applicable)

No response

Code Snippet

// Put your code below this line.
setContent {
            MaterialTheme(
                colorScheme = LivenessColorScheme.default()
            ) {
                FaceLivenessDetector(
                    sessionId = sessionId,
                    region = region,
                    credentialsProvider = credentialsProvider,
                    disableStartView = false,
                    onComplete = {
                        finishWithSuccess("Face Liveness completed successfully")
                    },
                    onError = { error ->
                        finishWithError("Face Liveness error: ${error.message}")
                    },
                    challengeOptions = ChallengeOptions(
                        faceMovementAndLight = LivenessChallenge.FaceMovementAndLight,
                        faceMovement = LivenessChallenge.FaceMovement(camera = Camera.Back)
                    )
                )
            }
        }

Log output

// Put your logs below this line

Configuration File

No response

Additional information and screenshots

No response

[harsh62]

Thanks for bringing this issue to our attention. The usage seems to be correct and I have notified our team member to look into it.

[tylerjroach]

Hi @EmanoelLoreto You can't use the back camera with the FaceMovementAndLight challenge. The challenge would fail as the colors would not reflect off of the users face.

[github-actions]

This issue is now closed. Comments on closed issues are hard for our team to see.
If you need more assistance, please open a new issue that references this one.

[tylerjroach]

I want to clarify that the values you are setting are correct. The faceMovement options are for the FaceMovement challenge. If your session is providing you with the FaceMovement (no-light) challenge and you are still not seeing the back camera being used, please re-open this ticket and we will investigate further.