how to vertically center a TextInputLayout's TextInputEditText without disabling hints

gistfile1.txt

TextInputLayout adds a top margin to the TextInputEditText to reserve space for the collapsing hint.
That effectively breaks vertical centering. This code simply copies the newly set top margin to the
bottom.

(Note that this isn't fully tested with all languages. The hint height is set based on font
characteristics. If you have a font with really large descenders and small ascenders you may
need to make changes to this code.

For reference, see TextInputLayout's updateInputLayoutMargins)

In Kotlin, with kotlin extensions:

		with(editTextId.parent as ViewGroup) {
			(layoutParams as MarginLayoutParams).apply { bottomMargin = topMargin }
			requestLayout()
		}

In Java,

    View v = findViewById(R.id.editTextId)
    MarginLayoutParams lp = (MarginLayoutParams) v.getLayoutParams()
    lp.bottomMargin = lp.topMargin
    v.requestLayout()

This also assumes that your TextInputEditText has a null background. If it uses the default background you'll need to figure out how to deal with padding issues. This code probably won't be useful.