개발자 제공 결제 전용 인앱 통합 가이드

var billingClient = BillingClient.newBuilder(context)
    .enableAlternativeBillingOnly()
    .build()

private BillingClient billingClient = BillingClient.newBuilder(context)
    .enableAlternativeBillingOnly()
    .build();

billingClient.isAlternativeBillingOnlyAvailableAsync(object:
    AlternativeBillingOnlyAvailabilityListener {
        override fun onAlternativeBillingOnlyAvailabilityResponse(
            billingResult: BillingResult) {
            if (billingResult.responseCode !=  BillingResponseCode.OK) {
                // Handle failures such as retrying due to network errors,
                // handling alternative billing only being unavailable, etc.
                return
            }

            // Alternative billing only is available. Continue with steps in
            // the guide.
        }
    });

billingClient.isAlternativeBillingOnlyAvailable(
    new AlternativeBillingOnlyAvailabilityListener() {
        @Override
        public void onAlternativeBillingOnlyAvailabilityResponse(
            BillingResult billingResult) {
            if (billingResult.getResponseCode() != BillingResponseCode.OK) {
                 // Handle failures such as retrying due to network errors,
                 // handling alternative billing only being unavailable,
                 // etc.
                return;
            }

            // Alternative billing only is available. Continue with steps in
            // the guide.
        }
    });

// An activity reference from which the alternative billing only information
// dialog will be launched.
val activity : Activity = ...;

val listener : AlternativeBillingOnlyInformationDialogListener =
    AlternativeBillingOnlyInformationDialogListener { 
        override fun onAlternativeBillingOnlyInformationDialogResponse(
            billingResult: BillingResult) {
            // check billingResult
        }
}

val billingResult =
    billingClient.showAlternativeBillingOnlyInformationDialog(activity,
        listener)

// An activity reference from which the alternative billing only information
// dialog will be launched.
Activity activity = ...;

AlternativeBillingOnlyInformationDialogListener listener =
    new AlternativeBillingOnlyInformationDialogListener() {
        @Override
        public void onAlternativeBillingOnlyInformationDialogResponse(
            BillingResult billingResult) {
                // check billingResult
            }
    };

BillingResult billingResult =
    billingClient.showAlternativeBillingOnlyInformationDialog(activity,
        listener);

billingClient.createAlternativeBillingOnlyReportingDetailsAsync(object:
    AlternativeBillingOnlyReportingDetailsListener {
        override fun onAlternativeBillingOnlyTokenResponse(
            billingResult: BillingResult,
            alternativeBillingOnlyReportingDetails:
                AlternativeBillingOnlyReportingDetails?) {
            if (billingResult.responseCode !=  BillingResponseCode.OK) {
                // Handle failures such as retrying due to network errors.
                return
            }

            val externalTransactionToken =
                alternativeBillingOnlyReportingDetails?
                    .externalTransactionToken

            // Send transaction token to backend and report to Google Play.
        }
    });

billingClient.createAlternativeBillingOnlyReportingDetailsAsync(
    new AlternativeBillingOnlyReportingDetailsListener() {
        @Override
        public void onAlternativeBillingOnlyTokenResponse(
            BillingResult billingResult,
            @Nullable AlternativeBillingOnlyReportingDetails
                alternativeBillingOnlyReportingDetails) {
            if (billingResult.getResponseCode() != BillingResponseCode.OK) {
                // Handle failures such as retrying due to network errors.
                return;
            }

            String transactionToken =
                alternativeBillingOnlyReportingDetails
                .getExternalTransactionToken();

            // Send transaction token to backend and report to Google Play.
        }
    });