Braintree Android Drop-In

Braintree Android Drop-In is a readymade UI that allows you to accept card and alternative payments in your Android app.

📣 Announcements

A new major version of the SDK is now available. See the v6 migration guide for details.
Upgrade your integration to continue accepting Braintree payments The SSL certificates for the Android SDK are set to expire by June 31, 2025. Upgrade to v6.16.0+ to continue using the Braintree SDK.

Adding it to your project

Add the dependency in your build.gradle:

dependencies {
  implementation 'com.braintreepayments.api:drop-in:6.16.0'
}

Additionally, add the following Maven repository and (non-sensitive) credentials to your app-level gradle:

repositories {
    maven {
        url "https://cardinalcommerceprod.jfrog.io/artifactory/android"
        credentials {
            username 'braintree_team_sdk'
            password 'AKCp8jQcoDy2hxSWhDAUQKXLDPDx6NYRkqrgFLRc3qDrayg6rrCbJpsKKyMwaykVL8FWusJpp'
        }
    }
}

To preview the latest work in progress builds, add the following SNAPSHOT dependency in your build.gradle:

dependencies {
  implementation 'com.braintreepayments.api:drop-in:6.16.1-SNAPSHOT'
}

You will also need to add the Sonatype snapshots repo to your top-level build.gradle to import SNAPSHOT builds:

allprojects {
    repositories {
        maven {
            url 'https://oss.sonatype.org/content/repositories/snapshots/'
        }
    }
}

Versions

This SDK abides by our Client SDK Deprecation Policy. For more information on the potential statuses of an SDK, check our developer docs.

Major version number	Status	Released	Deprecated	Unsupported
6.x.x	Active	November 2021	TBA	TBA
5.x.x	Unsupported	September 2020	November 2022	November 2023
4.x.x	Unsupported	February 2019	September 2021	September 2022

Versions 3 and below are unsupported.

Usage

Create a DropInRequest to start the Drop-in UI with specified options:

val dropInRequest = DropInRequest()

DropInClient is responsible for launching the Drop-in UI. To launch Drop-in, instantiate a DropInClient with client authorization and call DropInClient#launchDropInForResult with the DropInRequest you configured above and a request code that you have defined for Drop-in:

val dropInClient = DropInClient(this, "<#CLIENT_AUTHORIZATION#>")
dropInClient.setListener(this)
dropInClient.launchDropIn(dropInRequest)

To handle the result of the Drop-in flow, implement DropInListener methods onDropInSuccess() and onDropInFailure():

override fun onDropInSuccess(result: DropInResult) {
  // use the result to update your UI and send the payment method nonce to your server
  val paymentMethodNonce = result.paymentMethodNonce?.string
}

override fun onDropInFailure(error: Exception) {
  // an error occurred, checked the returned exception
}

Localization

Drop-In is currently localized for 25 languages. To view localized text for a specific locale, open its corresponding values-<LOCALE_NAME>/strings.xml resource file.

3D Secure + Drop-in

Drop-In supports 3D-Secure verification. Assuming you have 3D-Secure configured for your account, create a ThreeDSecureRequest() object, setting ThreeDSecurePostalAddress and ThreeDSecureAdditionalInformation fields where possible; the more fields that are set, the less likely a user will be presented with a challenge. For more information, check our 3D Secure Migration Guide. Make sure to attach this object to the BTDropInRequest before use.

val address = ThreeDSecurePostalAddress()
address.givenName = "Jill" // ASCII-printable characters required, else will throw a validation error
address.surname = "Doe" // ASCII-printable characters required, else will throw a validation error
address.phoneNumber = "5551234567"
address.streetAddress = "555 Smith St"
address.extendedAddress = "#2"
address.locality = "Chicago"
address.region = "IL"
address.postalCode = "12345"
address.countryCodeAlpha2 = "US"

// Optional additional information.
// For best results, provide as many additional elements as possible.
val additionalInformation = ThreeDSecureAdditionalInformation()
additionalInformation.shippingAddress = address

val threeDSecureRequest = ThreeDSecureRequest()
threeDSecureRequest.amount = "1.00"
threeDSecureRequest.email = "[email protected]"
threeDSecureRequest.billingAddress = address
threeDSecureRequest.versionRequested = VERSION_2
threeDSecureRequest.additionalInformation = additionalInformation

val dropInRequest = DropInRequest()
dropInRequest.threeDSecureRequest = threeDSecureRequest

Fetch last used payment method

If your user already has an existing payment method, you may not need to show Drop-in. You can check if they have an existing payment method using DropInClient#fetchMostRecentPaymentMethod. A payment method will only be returned when using a client token created with a customer_id.

val dropInClient = DropInClient(this, "<#CLIENT_TOKEN_WITH_CUSTOMER_ID>", dropInRequest)
dropInClient.fetchMostRecentPaymentMethod(this) { dropInResult, error ->
    error?.let {
        // an error occurred
    }
    dropInResult?.let { result ->
        result.paymentMethodType?.let { paymentMethodType ->
            // use the icon and name to show in your UI
            val icon = paymentMethodType.drawable
            val name = paymentMethodType.localizedName

            if (paymentMethodType == DropInPaymentMethod.GOOGLE_PAY) {
                // The last payment method the user used was Google Pay.
                // The Google Pay flow will need to be performed by the
                // user again at the time of checkout.
            } else {
                // Show the payment method in your UI and charge the user
                // at the time of checkout.
                val paymentMethod = result.paymentMethodNonce
            }
        }
    } ?: run {
        // there was no existing payment method
    }
}

Help

Read the javadocs
Read the docs
Find a bug? Open an issue
Want to contribute? Check out contributing guidelines and submit a pull request.

Feedback

Here are a few ways to get in touch:

GitHub Issues - For generally applicable issues and feedback
Braintree Support / Get Help - for personal support at any phase of integration

License

Braintree Android Drop-In is open source and available under the MIT license. See the LICENSE file for more info.

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