passing data from fragment to activity is not same

Question

I have fragment in activity. and I want to send data from fragment to activity.

how I get data in Fragment and send to my Activity:

val edit = question!!.id
(activity as QuestionActivity).kirimItem(edit)

in activity :

fun kirimItem(item: String) {
    idItem = item
}

and I call idItem in the button next onClick and show Toast the value from idItem

in the fragment, when I test data, question!!.id = 8 but toast is showing 11. The question is, why passing data from fragment to activity is not same. please guide me:(

Answer 1

I am not sure that what is the rest of our code. This piece of code below works for me.

// Fragment, `btn` is Button and `edt` is EditText
btn.setOnClickListener {
    (activity as MainActivity?)?.callToast(edt.text.toString())
}

// Activity
fun callToast(str: String) {
    Toast.makeText(this, str, LENGTH_SHORT).show()
}