Verically splitted content

I’d like to split the screen in two parts with the possibility for the users to change each part width. (Like now, when you create a topic on this forum you can resize the form’s height: I want to do the same thing horizontally).
Is there any built-in component to do so or should I try to hack some things ?

Ionic doesn’t support “split pane” like the iPad settings app. If you search the forum, you’ll see a few hacks people are using.