Can't constraint two items horizontally with equal width

[ahmetcj4]

I want to put two items in with the same with in constraint builder but currently it seems not working.

Sample Code:

    override fun createContentWidget() = with(theme) {
        constraint(size = WidgetSize.AsParent) {
            val loginButton = +button(
                size = Const(MatchConstraint, WrapContent),
                content = Text(Value.data("Login".desc() as StringDesc))
            ) { }

            val registerButton = +button(
                size = Const(MatchConstraint, WrapContent),
                content = Text(Value.data("Register".desc() as StringDesc))
            ) { }

            constraints {
                loginButton topToTop root
                loginButton leftToLeft root
                loginButton rightToLeft registerButton offset 8

                registerButton centerYToCenterY loginButton
                registerButton rightToRight root
                registerButton leftToRight loginButton offset 8
            }
        }
    }

Previews:

Android	iOS

[Alex009]

on both platforms we can create vertical/horizontal guidelines:
https://developer.android.com/reference/android/support/constraint/Guideline
https://developer.apple.com/documentation/uikit/uilayoutguide

if we add to common api guidelines support we support case from issue description