How to remove end padding of checkable menu item?

I have an overflow menu with a checkable menu item. I would like to align the CheckBox all the way to the end, but I don't know how this can be done.

My menu is defined like so:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:icon="@drawable/ic_baseline_more_vert_24"
        android:title=""
        app:showAsAction="always">
        <menu>
            <item
                android:id="@+id/desktop_site"
                android:checkable="true"
                android:checked="false"
                android:icon="@drawable/ic_baseline_desktop_windows_24"
                android:title="Desktop site"
                app:showAsAction="never" />
        </menu>
    </item>
</menu>

You can create a custom style to the CheckBox and adjust the end padding with a negative value:

<style name="checkbox_style" parent="android:style/Widget.Holo.Light.CompoundButton.CheckBox">
    <item name="android:paddingRight">-7dp</item>
</style>

And apply it to your app's theme:

<item name="checkboxStyle">@style/checkbox_style</item>

Note: By default there should be some margin surrounds a menu item; so you can't send the checkBox to the far end, as its right edge will cut:

When using -8dp:

So, you need to be careful in handling this.

UPDATE

but it affects all the CheckBoxes in my app

This requires to reverse this padding in all of CheckBoxes in your layouts; and there are options for this:

• First option: add android:paddingRight="7dp" / android:paddingEnd="7dp" to all the CheckBoxes.
• Second option: Create a custom CheckBox class and add this padding to its constructors; and use this customized CheckBox instead of the default CheckBox:

public class MyCheckBox extends AppCompatCheckBox {

    public MyCheckBox(Context context) {
        super(context);
        init();
    }

    public MyCheckBox(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    private void init() {
        int px = (int) TypedValue.applyDimension(
                TypedValue.COMPLEX_UNIT_DIP,
                7f, // dp value
                getResources().getDisplayMetrics()
        );
        setPadding(0, 0, px, 0);
    }

    public MyCheckBox(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }


}

And to use it:

<!-- Add the full path of the customized CheckBox -->
<com.example.android......MyCheckBox   
    android:id="@+id/checkbox2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
/>

Hint: If you target API-17+, then use android:paddingEnd instead android:paddingRight