Manage default card

Overview

Set a default card before the end user can make a payment.

Only one card can be set as the default card at a time.

SDK

Set default card

Android Java

D1PayWallet d1PayWallet = d1Task.getD1PayWallet();
String d1CardID = "";
d1PayWallet.setDefaultPaymentDigitalCard(
        d1CardID,
        new D1Task.Callback<Void>() {
            @Override
            public void onSuccess(Void ignored) { }

            @Override
            public void onError(@NonNull D1Exception exception) {
                // Refer to D1 SDK Integration – Error Management section
                // Common error: invalid d1CardID
            }
});

Get default card

If no default card is set, getDefaultPaymentDigitalCard returns null.

Android Java

D1PayWallet d1PayWallet = d1Task.getD1PayWallet();
String d1CardID = "";
d1PayWallet.getDefaultPaymentDigitalCard(
        new D1Task.Callback<String>() {
            @Override
            public void onSuccess(@Nullable String d1CardID) {
                if (d1CardID != null) {
                    // call d1PayWallet.getDigitalCard to retrieve the details
                }
            }

            @Override
            public void onError(@NonNull D1Exception exception) {
                // Refer to D1 SDK Integration – Error Management section
            }
});

Unset default card

Android Java

D1PayWallet d1PayWallet = d1Task.getD1PayWallet();
d1PayWallet.unsetDefaultPaymentDigitalCard(
        new D1Task.Callback<Void>() {
            @Override
            public void onSuccess(Void ignored) {
                // the default card is unset
            }

            @Override
            public void onError(@NonNull D1Exception exception) {
                // Refer to D1 SDK Integration – Error Management section
                // Common error: there is no default card.
            }
});