layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <studio.carbonylgroup.textfieldboxes.TextFieldBoxes
        android:id="@+id/text_field_boxes"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:helperText=" "
        app:labelText="nc_server_url">

        <studio.carbonylgroup.textfieldboxes.ExtendedEditText
            android:id="@+id/extended_edit_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:imeOptions="actionDone"
            android:inputType="textUri"
            android:minWidth="5dp"
            android:singleLine="true"/>

    </studio.carbonylgroup.textfieldboxes.TextFieldBoxes>

</LinearLayout>