handleDeepLink().kt

 private fun handleDeepLink(data: Uri?) {
    when (data?.path) {

      DEEPLINK_HOME -> {
        Snackbar.make(findViewById(android.R.id.content), R.string.welcome_message,
            Snackbar.LENGTH_SHORT).show()
      }

      DEEPLINK_QUERY -> {
        val symbol = data.getQueryParameter(SYMBOL_QUERY).orEmpty()
        val getQuoteIntent = Intent(this, StockQuoteActivity::class.java).apply {
          putExtra(SYMBOL_QUERY, symbol.toUpperCase(Locale.getDefault()))
        }
        startActivity(getQuoteIntent)
      }
    }
  }