AutocompleteTextView is not working properly in ListView header

Question

Duplicating this question with some modifications, as I have new info

So, from the beginning: I’ve got AutoCompleteTextView filled with ArrayAdapter:

AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) header.findViewById(R.id.auto_complete_text_view);
autoCompleteTextView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, arrayList));

header – inflated view: my AutoCompleteTextView is in ListView header

XML:

<AutoCompleteTextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/auto_complete_text_view"
        android:hint="@string/hint"
        android:completionThreshold="1"
        android:dropDownWidth="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:scrollHorizontally="true"
        android:ellipsize="end"
        android:lines="1"
        android:maxLines="1"
        android:layout_marginLeft="@dimen/external_margin"
        android:layout_marginRight="@dimen/external_margin"
        android:layout_marginBottom="@dimen/external_margin"
        />

App launches, dropdownlist appears, but I can't enter more than 1 symbol (or more than specified in threshold parameter). I can't neither delete more than 1 symbol if I've chosen some option from the list.

@pskink First of all, thank you for your interest. I’ve been trying to think over your solution, but didn’t get how I would apply it considering facts below.

I’ve made some research and here’s what I’ve found:

===============================================

Idea #1: arrayList is too large for AutoCompleteTextView (~450 entries)

Solution: get sublist from original list

autoCompleteTextView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, arrayList.subList(1, 10)));

Result: view behavior remains the same

Solution: feed to adapter another array

String[] array = {“one”, “two”, “three”, “four”}
autoCompleteTextView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, array));

Result: view behavior remains the same

===============================================

Idea #2: let’s try to create test activity and place AutoCompleteTextView there

Solution:

AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.auto_complete_text_view);
autoCompleteTextView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, arrayList));

Result: works perfect with initial code and with ~450 entries of arrayList

As it works as it should, I’ve come to realize that point is in ListView header

===============================================

Idea #3: google some solutions related to ListView header and AutoCompleteTextView

Android AutoCompleteTextView as ListView header

android:descendantFocusability="afterDescendants"

Result: view behavior remains the same

Focusable EditText inside ListView

Result: I think it’s not appropriate decision for my issue, so didn’t try it. At least yet

===============================================

Idea #4: perform some other actions right after dropdown list appearing Steps:

1. Start typing in my AutoCompleteTextView something – as mentioned above, only one symbol is typed, dropdown list appears
2. Touch screen in some other area (not dropdown list) – list disappears
3. Click on input field of AutocompleteTextView again and continue typing – one more symbol can be typed, dropdown list appears

Repeating steps above, I can type something large.

===============================================

And the last one: noticed a lot of following messages in Logcat when I’m typing something in AutoCompleteTextView:

getTextBeforeCursor on inactive InputConnection

Have found some related issues, for example:

getExtractedText on inactive InputConnection warning on android

Solution:

@Override
protected void onPause() {

    // hide the keyboard in order to avoid getTextBeforeCursor on inactive InputConnection
    InputMethodManager inputMethodManager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);

    inputMethodManager.hideSoftInputFromWindow(myEditText.getWindowToken(), 0);

    super.onPause();
}

Result: view behavior remains the same

I’m lost.