Android - Removing space between TableLayout Rows

I want to remove between the Button "0" and the Button "1". My goal is it to have the same space between them as the Button "X". UI result

These solutions did not work:

How to remove space between two rows in Tablelayout?

How to reduce space between two rows of Table Layout for android?

Also, the Button "X" should span over both rows, which it only does, when i put in a bigger textSize.

<TableLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TableRow>
        
        <TableLayout android:layout_width="0sp"
            android:layout_height="match_parent"
            android:layout_weight="1">
            <TableRow android:layout_width="0sp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:layout_margin="0sp"
                android:padding="0sp">
                <com.google.android.material.button.MaterialButton
                    android:layout_width="0sp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:text="0"
                    android:layout_margin="2sp"
                    />
            </TableRow>
            
            <TableRow
                android:layout_width="0sp"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:layout_margin="0sp"
                android:padding="0sp">
                <com.google.android.material.button.MaterialButton
                    android:layout_width="0sp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:text="1"
                    android:layout_margin="2sp"
                    />
            </TableRow>
        </TableLayout>
        
        <TableLayout
            android:layout_width="0sp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:layout_margin="0sp"
            android:padding="0sp">
            <TableRow>
                <com.google.android.material.button.MaterialButton
                    android:layout_width="0sp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:text="X"
                    android:layout_margin="2sp"
                    />
            </TableRow>
        </TableLayout>
        
    </TableRow>
</TableLayout>

Thanks in advance for any ideas.

I tried your approach with the nested TableLayout and failed to remove space completely. Button properties insetTop and insetBottom removed some space though. You can use a different approach using less nested layouts:

<TableLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TableRow
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <Button
            android:id="@+id/button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0.5"
            android:insetBottom="0dp"
            android:text="1" />

        <Button
            android:id="@+id/button2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0.5"
            android:insetBottom="0dp"
            android:text="X" />
    </TableRow>

    <TableRow
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <Button
            android:id="@+id/button3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0.5"
            android:insetTop="0dp"
            android:text="Button" />

        <Space
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0.5" />
    </TableRow>
</TableLayout>