I have an AutoCompleteTextView inside an AlertDialog (custom view). I have registered an onItemClick event.
When I type into the input, a dropdown of choices does appear. However, when I click one of the items, the onItemClick event handler never fires.
I want to know what's wrong with my code and why it won't fire the event handler.
I've tried tracing through the AutoCompleteTextView code and can't find where the code that triggers the event handlers even exists. I have confirmed the handler is registered, though.
I have looked at every example of ACTV I can find online. I have looked at so many SO posts about this and none have helped or been on point.
package com.foobar.weightlifting.ui
import android.app.AlertDialog
import android.app.Dialog
import android.os.Bundle
import android.util.Log
import android.view.View
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.AutoCompleteTextView
import androidx.databinding.DataBindingUtil
import androidx.fragment.app.DialogFragment
import androidx.lifecycle.MutableLiveData
import com.foobar.weightlifting.R
import kotlinx.android.synthetic.main.lift_selector.*
class LiftDialog : DialogFragment(), AdapterView.OnItemSelectedListener, AdapterView.OnItemClickListener {
companion object {
private const val TAG = "LiftDialog"
private const val POSITIVE_LABEL = "Select"
private const val NEGATIVE_LABEL = "Cancel"
}
private val model = Model(MutableLiveData())
private lateinit var that: LiftDialog
override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
that = this
return activity?.let {
val inflater = requireActivity().layoutInflater
val binding : com.foobar.weightlifting.databinding.LiftSelectorBinding = DataBindingUtil.inflate(inflater, R.layout.lift_selector, null, false)
binding.model = model
val view = binding.root
// Setup autocomplete search bar
val liftChoices = resources.getStringArray(R.array.lift_list)
val adapter = ArrayAdapter<String>(context, R.layout.lift_selector, liftChoices)
val autocompleteView: AutoCompleteTextView = view.findViewById(R.id.lift_search_bar)
autocompleteView.setAdapter(adapter)
// autocompleteView.onItemSelectedListener = that
// autocompleteView.onItemClickListener = that
autocompleteView.setOnItemClickListener { parent, view, position, id ->
Log.d(TAG, "info: $position $id")
}
val builder = AlertDialog.Builder(it)
builder.apply {
setTitle("Describe the lift")
setView(view)
setPositiveButton(POSITIVE_LABEL) { dialog, which ->
Log.d(TAG, "user pressed the $POSITIVE_LABEL button: $which ; model: ${model.searchText.value}")
}
setNegativeButton(NEGATIVE_LABEL) { dialog, which ->
Log.d(TAG, "user pressed the $NEGATIVE_LABEL button: $which")
}
}
builder.create()
} ?: throw IllegalStateException("Blah")
}
override fun onNothingSelected(parent: AdapterView<*>?) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onItemClick(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
data class Model(val searchText: MutableLiveData<String>)
}
and the layout XML file
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android">
<data>
<variable name="model"
type="com.foobar.weightlifting.ui.LiftDialog.Model"/>
</data>
<AutoCompleteTextView android:layout_width="wrap_content"
android:id="@+id/lift_search_bar"
android:text="@={model.searchText}"
android:hint="@string/select_lift_hint"
android:dropDownWidth="match_parent"
android:layout_height="wrap_content"/>
</layout>
If I put a breakpoint in onItemClick I expect it to break when I click on an item from the autocomplete dropdown. Instead, nothing happens but a lonely D/EGL_emulation: eglMakeCurrent: 0xea5462e0: ver 3 0 (tinfo 0xcf6cc040) logged.
I've tried to trace through the AutoCompleteTextView code but I can't even find where the onItemClick event handler I've registered is ever called. I have confirmed that the event handler is registered with the AutoCompleteTextView instance, though.
