ShouldDo-Intent.kt

// If you have a list of data to pass through intent
// Don't do this:

intent.put("first", "something")
intent.put("second", 100.5)
intent.put("third", Object)


// Else, do this.
// Create a model
SomePayload(){
  var first : String = "" //default value
  var second : Double = 0.0
  var third : Object = Object()
}

// Sender fragment or activity
intent.put("Payload", Gson().toJson(somepayload))

// Receiver fragment or activity
val payload = Gson().fromJson(intent.getStringExtra("Payload"),SomePayload::class.java)