Cross-device sessions

// Imports...
import kotlinx.coroutines.*

class MainActivity : AppCompatActivity() {
  lateinit var portal: Portal
  lateinit var provisionButton: Button

  // Your API instance.
  private val exchangeApi: Api = Api()

  // The user from your API instance.
  lateinit var user: User

  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    provisionButton = findViewById(R.id.provisionButton)
    provisionButton.setOnClickListener { handleProvision() }
  }

  private fun handleProvision() {
    lifecycleScope.launch {
      try {
        // Retrieve the existing encrypted client backup share from your API.
        val backupShare = exchangeApi.getCipherText(user.id)

        // Set a new signing share by running provisionWallet.
        portal.provisionWallet(backupShare) { status ->
          // Ensure UI interactions are done on the main thread
          // Do something with the status, such as update a progress bar
          // or log the progress
          Log.i("[PORTAL]", "Provision wallet status: ${status.status}, is done: ${status.done}")
        }
      } catch (e: Exception) {
        // ❌ Handle any errors provisioning the wallet.
        Log.e("[PORTAL]", "Error provisioning wallet: ${e.message}")
      }
    }
  }
}