How to designate the border of one object by another?

Question

Java

I don’t know how much I suffer, I have never worked with interfaces on android. There is a ConstraintLayout that contains a ListView, a TextInputLayout (with a TextInputEditText inside) and a FloatingActionButton. Right now the last 3 objects are on top of the ListView and I need it to be above them. How to do it? (already tried toTopOf and similar methods, but because of this, the text input block with the button "leave" to the top of the screen)

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    tools:ignore="MissingClass">

        <ListView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#d11100"
            />

        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/btnSend"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="10px"
            android:clickable="true"
            android:src="@drawable/ic_send"
            app:backgroundTint="@color/colorPrimary"
            app:fabSize="mini"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent" />

        <com.google.android.material.textfield.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/btnSend"
            android:background="#FFFFFF"
            >

                <com.google.android.material.textfield.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginRight="50dp"
                    android:id="@+id/messageField"
                    android:lines="2"
                    android:maxLines="2" />
        </com.google.android.material.textfield.TextInputLayout>




</androidx.constraintlayout.widget.ConstraintLayout>

Answer 1

Perhaps this information will help you.
https://stackoverflow.com/questions/46977540/infer...
https://startandroid.ru/ru/uroki/vse-uroki-spiskom...

If you mouse over it, it will show an error:
This view is not constrained, it only has designtime positions, so it will jump to (0,0) unless you add constraints.
With this message, the studio tells us that the View is not attached. Its current position on the screen is relevant only for development (i.e. only in the studio). And when the application is running, this position will be ignored, and the View will go to the point (0,0), i.e. left-up (which we observed at startup).