Add items to Json - json

Question

I have a problem for a long time that I would like to solve:
I have a fragment with buttons, that when I press a button I have the variable * data that happened to the url I want to open.
val button01 = view.findViewById(R.id.tv_01) as Button
button01.setOnClickListener{
dato = "01"
miTexto.setText("Jornada - 01")
requestJsonObject()
}
My url
val url = Directions.JORNADAS + Directions.CMP + "&jor=$dato&tmp=" + Directions.TMP
This url is clear that he opens it to me, it is a json which I pause and I already pass to the adapter and shows it to me.
From the adapter I pass data, which come in the Json with a put.extras intent, to the activity details.kt which depends on the item that pulse shows me the data of another url.
val intent = Intent(context, Detalles::class.java
holder.itemView.setOnClickListener{
intent.putExtra("nomLocal", jornada.nomLocal)context.startActivity(intent)......
Up here all good.
My problem: I need to pass the variable data to the activity Details.kt to be able to access the url, since * data is a piece of url of what I am going to parse in the activity Details
I had thought about adding an item to the Json
private fun requestJsonObject() {
val queue = newRequestQueue(activity)
//http://www.ffcv.es/ncompeticiones/server.php?action=getResultados&cmp=328&jor=1&tmp=2018/2019
val url = Directions.JORNADAS + Directions.CMP + "&jor=$dato&tmp=" + Directions.TMP
val stringRequest = StringRequest(Request.Method.GET, url, Response.Listener { response ->
val builder = GsonBuilder()
val mGson = builder.create()
val items: List<ModelJor>
items = Arrays.asList(*mGson.fromJson(response, Array<ModelJor>::class.java))
items.add(ModelJor("\"jornada\":" + $dato)) // dato en rojo
Log.d("Resultado", items.toString())
recyclerView !!.layoutManager = GridLayoutManager(activity!!, 1)
val adapter = AdapJor(activity !!, items)
recyclerView !!.adapter = adapter
}, Response.ErrorListener { error -> Log.d(TAG, "Error " + error.message) })
queue.add(stringRequest)
}
Any solution?