With the SDK ready, it’s time to create a transaction.

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Open the payment sheet

To open the payment sheet call the .launch() method on the SDK. 
gr4vySDK.launch(
    context = this,
    token = "[TOKEN]",
    amount = 1299,
    currency = "AUD",
    country = "AU"
)
Replace the [TOKEN] with the JWT created in step 2. Additional options can be provided when launching the SDK.

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Handle SDK events

The Gr4vyResultHandler requires you to handle the events emitted by the SDKs as follows. 
override fun onGr4vyResult(result: Gr4vyResult) {
  when(result) {
    is Gr4vyResult.GeneralError -> startActivity(Intent(this, FailureActivity::class.java))
    is Gr4vyResult.TransactionCreated -> startActivity(Intent(this, SuccessActivity::class.java))
    is Gr4vyResult.TransactionFailed -> startActivity(Intent(this, FailureActivity::class.java))
  }
}
Learn more about the events triggered by the Android SDK in our events guide.