How to disable onItemSelectedListener to be invoked when setting selected item by code

Question

Just wondering how you handle the following problem: a result is calculated depending on two spinners\' selected items. To handle the UI things, i.e. a user picks a new item in

Answer 1

In my case, since I'm triggering spinner programmatically, then I just have to add spinnerSelected flag after spinner.performClick() like below.

private var spinnerSelected = false

someView.setOnClickListener {
    spinner.performClick()
    spinnerSelected = true
}

spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
    override fun onNothingSelected(parent: AdapterView<*>?) {
        // do nothing
    }

    override fun onItemSelected(
        parent: AdapterView<*>?,
        view: View?,
        position: Int,
        id: Long
    ) {
        if (spinnerSelected) {
            //... do something

            spinnerSelected = false
        }
      }
    }