A simple contract based on TaskResultContracts.GetApiTaskResult that returns a wrapper including a PaymentData object and additional information about the Task operation.

This contract resolves a Task created by the Google Pay API client and returns a result containing the PaymentData object and additional information about the API call.

Below is an example that uses this contract to return a ApiTaskResult<PaymentData> from a completed Task object created by the PaymentsClient.loadPaymentData(PaymentDataRequest) method:

// Use the contract to create an activity result launcher
 val paymentDataLauncher = registerForActivityResult(GetPaymentDataResult()) {
   when (it.status.statusCode) {
     CommonStatusCodes.SUCCESS -> // Do something with the result (it.result: PaymentData?)
     CommonStatusCodes.CANCELED -> // The user canceled
     AutoResolveHelper.RESULT_ERROR -> // The API returned an error (it.status: Status)
     CommonStatusCodes.INTERNAL_ERROR -> // Handle other unexpected errors
   }
 }

 // Start the task operation and associate it with the activity launcher
 val paymentDataTask: Task<PaymentData> = paymentsClient.loadPaymentData(request)
 paymentDataTask.addOnCompleteListener(context, paymentDataLauncher::launch)