How to add a custom adapter to an AutoCompleteTextView

Question

Is there any simple way to set a 2 TextView dropdown to an AutoCompleteTextView.

There is android.R.layout.two_line_list_item Which I couldn\'t find any exa

Answer 1

Here's an extension for AutoCompleteTextView, Kotlin

fun AutoCompleteTextView.showListDropDown(list: List, action:(item: Any) -> Unit){

    val adapter = ArrayAdapter(
        this.context,
        R.layout.custom_dropdown_item,
        ArrayList(list)
    )

    this.setAdapter(adapter)

    this.threshold = 1

    this.onItemClickListener = AdapterView.OnItemClickListener { parent, view, position, id ->
        val item = adapter.getItem(position)!!
        action(item)
    }

    this.setOnTouchListener { _: View?, _: MotionEvent? ->
        if (list.isNotEmpty()) {
            if (this.text.toString() != "") adapter.filter
                .filter(null)
            this.showDropDown()
        }
        return@setOnTouchListener true
    }
}