Textview Can't Change Line In Autocompletetextview Dropdownlistview

I tested on Android Api 28. I added a AutoCompleteTextView and it showed like below: I have try: 1.setting lines =3,maxLines = 3,scrollHorizontally = true,inputType='textMultiLine

Solution 1:

Just need a LinerLayout to wrap the TextView in the layout of item:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/tv_search"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="4dp"
    android:paddingBottom="4dp"
    android:singleLine="false"
    android:textColor="#000000"
    android:textSize="16dp"
    tools:text="test--------------------------------------test" />
 </LinearLayout>