pavlospt

private fun initSmartlockCredentialsRequest() {
    smartlockCredentialsRequest = CredentialRequest.Builder()
            .setPasswordLoginSupported(true)
            .build()
}

pavlospt

private fun initHintRequest() {
    hintRequest = HintRequest.Builder()
            .setHintPickerConfig(
                    CredentialPickerConfig.Builder()
                            .setShowCancelButton(true)
                            .setPrompt(CredentialPickerConfig.Prompt.SIGN_IN)
                            .build()
            )
            .setEmailAddressIdentifierSupported(true)
            .build()

pavlospt

private fun requestEmailHints() {
    val intent = Auth.CredentialsApi.getHintPickerIntent(googleApiClient, hintRequest)
    try {
        startIntentSenderForResult(intent.intentSender, RC_HINT_REQUEST, null, 0, 0, 0)
    } catch (e: IntentSender.SendIntentException) {
        emailHintRequestFailure()
    }
}

pavlospt

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    when (requestCode) {
        RC_HINT_REQUEST -> handleEmailHintRequestResolution(resultCode, data)
    }
}

pavlospt

private fun handleEmailHintRequestResolution(resultCode: Int, data: Intent?) {
    if (resultCode == AppCompatActivity.RESULT_CANCELED) {
        emailHintRequestCancelled()
    } else {
        emailHintRequestSuccess(data)
    }
}

pavlospt

private fun emailHintRequestSuccess(data: Intent?) {
    val credential: Credential? = data?.getParcelableExtra(Credential.EXTRA_KEY)
    credential?.let {
        proceedOnMainScreen(it.id)
    }
}

pavlospt

private fun handleCredentialRequestResult(credentialRequestResult: CredentialRequestResult) {
    if (credentialRequestResult.status.isSuccess) {
        proceedOnMainScreen(credentialRequestResult.credential.id)
    } else {
        resolveCredentialRequest(credentialRequestResult.status)
    }
}

pavlospt

private fun resolveCredentialRequest(status: Status?) {
    if (status?.statusCode == CommonStatusCodes.RESOLUTION_REQUIRED) {
        initiateCredentialRequestResolution(status)
    } else {
        credentialRequestFailure()
    }
}

pavlospt

private fun initiateCredentialRequestResolution(status: Status?) {
    try {
        status?.startResolutionForResult(this, RC_CREDENTIALS_REQUEST)
    } catch (sendIntentException: IntentSender.SendIntentException) {
        credentialRequestResolutionFailure()
    }
}

pavlospt

private lateinit var signInButton: SignInButton

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

    setContentView(R.layout.activity_sign_in)

    initViews()
}