AuthenticatorActivity.kt

    @SuppressLint("InflateParams")
    private fun handleLogin() {
        model.initiateSignin { identityRequest, params, callback ->
            when(identityRequest) {
                IdentityRequest.NEED_CREDENTIALS -> {
                    callback(mapOf(
                            "username" to loginFormUsernameField.text.toString(),
                            "password" to loginFormPasswordField.text.toString()
                    ))
                }

                IdentityRequest.NEED_MULTIFACTORCODE -> {
                    val mfaDialog = layoutInflater.inflate(R.layout.dialog_multifactor_auth, null)
                    val mfaCodeInput = mfaDialog.find(R.id.dialog_mfa_code) as EditText
                    val mfaInstructions = mfaDialog.find(R.id.dialog_mfa_instructions) as TextView
                    params?.let {
                        val deliveryTo = it.getOrDefault("deliveryTo", "UNKNOWN")
                        mfaInstructions.text = getString(R.string.specific_mfa_instructions, deliveryTo)
                    }
                    alert {
                        title = "Enter Secondary Code"
                        customView = mfaDialog
                        positiveButton("OK") { callback(mapOf("mfaCode" to mfaCodeInput.text.toString())) }
                    }.show()
                }

                IdentityRequest.NEED_NEWPASSWORD -> {
                    val newPasswordDialog = layoutInflater.inflate(R.layout.dialog_new_password, null)
                    val passwordInput = newPasswordDialog.find(R.id.new_password_form_password) as EditText
                    alert {
                        title = "Enter New Password"
                        customView = newPasswordDialog
                        positiveButton("OK") { callback(mapOf("password" to passwordInput.text.toString())) }
                    }.show()
                }

                IdentityRequest.SUCCESS -> {
                    analyticsService.recordSuccessfulLogin(loginFormUsernameField.text.toString())
                    [email protected]()
                }

                IdentityRequest.FAILURE -> {
                    analyticsService.recordFailedLogin()
                    alert(params?.get("message") ?: "Error submitting credentials") {
                        title = "Login Denied"
                        positiveButton("Close") { /* Do Nothing */ }
                    }.show()
                }

                else -> {
                    analyticsService.recordEvent("ERROR", mapOf("error" to "unexpected identity request"))
                    alert("Unknown or unexpected identity request") {
                        title = "Something went wrong!"
                        positiveButton("Close") { /* Do Nothing */ }
                    }.show()
                }
            }
        }
    }