Auto-width for ClampScrollable with TextView child

I have some TextView block, placed in ClampScrollable and trying to make it auto-adapted to the content length (currently it’s cropped with horizontal scroll on screenshot) it’s default maximum-size property, I won’t make it 100% of screen also, because after that TextView will always aligned to the left.

In other words, keep TextView position centered, but expand it to the left only when that really wanted by content length