为了解决这个问题，需要在使用BiometricPrompt进行身份验证时，显式地禁用设备凭据。以下是一个示例：

private fun showBiometricPrompt(context: Context) {
    val executor = ContextCompat.getMainExecutor(context)
    val biometricPrompt = BiometricPrompt(context, executor, object : BiometricPrompt.AuthenticationCallback() {
        override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
            super.onAuthenticationSucceeded(result)
            // Handle authentication successful.
        }

        override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {
            super.onAuthenticationError(errorCode, errString)
            // Handle authentication error.
        }

        override fun onAuthenticationFailed() {
            super.onAuthenticationFailed()
            // Handle authentication failed.
        }
    })

    val promptInfo = BiometricPrompt.PromptInfo.Builder()
        .setTitle("Authentication Title")
        .setSubtitle("Authentication Subtitle")
        .setDescription("Authentication Description")
        .setDeviceCredentialAllowed(false) // Disable device credential.
        .build()

    biometricPrompt.authenticate(promptInfo)
}