Card validation

package com.worldpay.access.checkout.sample.code

import com.worldpay.access.checkout.client.validation.listener.AccessCheckoutCardValidationListener
import com.worldpay.access.checkout.client.validation.model.CardBrand

class CardValidationListener : AccessCheckoutCardValidationListener {

    // This event listener is notified when the card brand detected by the SDK has changed
    override fun onCardBrandsChanged(cardBrands: List<CardBrand>) {
        // The cardBrands list may contain one brand, or multiple brands for a co-branded card
        // CardBrand objects contains a name and optionally a list of of image objects
        // with a URL and a type (either image/png or image/svg+xml)

        // You might want to display the brand name of the first card brand returned
        // or in the case of a co-branded card, you may want to prompt shoppers with a choice
        // of brands to pay with

        // Don't forget to use the UI thread to update your views
    }

    // This event listener is notified when the PAN becomes valid or invalid
    override fun onPanValidated(isValid: Boolean) {
        // You might want to change the text color
        val textColor = if (isValid) Color.GREEN else Color.RED

        panAccessCheckoutView.setTextColor(textColor)

        // You might want to disable a submit button which would normally be clicked on when all fields are valid
        if (!isValid) submitBtn.isEnabled = false
    }

    // This event listener is notified when the expiry date becomes valid or invalid
    override fun onExpiryDateValidated(isValid: Boolean) {
        // You might want to change the text color
        val textColor = if (isValid) Color.GREEN else Color.RED

        expiryDateAccessCheckoutView.setTextColor(textColor)

        // You might want to disable a submit button which would normally be clicked on when all fields are valid
        if (!isValid) submitBtn.isEnabled = false
    }

    // This event listener is notified when the CVC becomes valid or invalid
    override fun onCvcValidated(isValid: Boolean) {
        // You might want to change the text color
        val textColor = if (isValid) Color.GREEN else Color.RED

        cvcAccessCheckoutView.setTextColor(textColor)

        // You might want to disable a submit button which would normally be clicked on when all fields are valid
        if (!isValid) submitBtn.isEnabled = false
    }

    // This event listener is notified when the PAN, expiry date and CVC are all valid
    override fun onValidationSuccess() {
        // You might want to enable a submit button when all fields are valid
        submitButton.isEnabled = true
    }
}

package com.worldpay.access.checkout.sample.code

// android library imports omitted

import com.worldpay.access.checkout.client.AccessCheckoutClient;
import com.worldpay.access.checkout.client.AccessCheckoutClientBuilder;
import com.worldpay.access.checkout.client.validation.config.CardValidationConfig;
import com.worldpay.access.checkout.client.validation.listener.AccessCheckoutCardValidationListener;

class MainActivity : AppCompatActivity() {

    private val baseUrl = "TARGET_BASE_URL"
    private val checkoutId = "YOUR_CHECKOUT_ID"

    // other fields omitted

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

        // Reference the AccessCheckoutEditText views
        val panAccessCheckoutView: AccessCheckoutEditText = findViewById<AccessCheckoutEditText>(R.id.card_flow_text_pan)
        val expiryDateAccessCheckoutView: AccessCheckoutEditText = findViewById<AccessCheckoutEditText>(R.id.card_flow_text_expiryDate)
        val cvcAccessCheckoutView: AccessCheckoutEditText = findViewById<AccessCheckoutEditText>(R.id.card_flow_text_cvc)

        // other view references omitted

        // Initialize the AccessCheckoutClient
        val sessionResponseListener = MySessionResponseListener()

        val accessCheckoutClient = AccessCheckoutClientBuilder()
            .baseUrl(baseUrl)
            .checkoutId(checkoutId)
            .context(this)
            .sessionResponseListener(sessionResponseListener)
            .lifecycleOwner(this)
            .build()

        // Create the validation configuration
        val cardValidationListener = CardValidationListener()

        val cardValidationConfig = CardValidationConfig.Builder()
            .pan(panAccessCheckoutView)
            .expiryDate(expiryDateAccessCheckoutView)
            .cvc(cvcAccessCheckoutView)
            .validationListener(cardValidationListener)
            .build()

        // Initialize validation using the client
        accessCheckoutClient.initialiseValidation(cardValidationConfig)

    }

}

val cardValidationConfig = CardValidationConfig.Builder()
    ...
    .acceptedCardBrands(arrayOf("visa", "mastercard","amex"))
    ...
    .build();

val cardValidationConfig = CardValidationConfig.Builder()
    ...
    .enablePanFormatting()
    ...
    .build();