ios - Xcode IB auto sizing? -

everything looks fine in ib. when run app using iphone5/iphone6/ipad sims, it's mangled.

in ib:

in iphone6 sim:

in above sim, buttons cut. textfield , textview cut. tf & tv, aligned center trail off edges on both sides.

i have buttons width set

editor > pin > widths equally

the title label set

horizontal center in container

constraint

the textfield , textview have

horizontal center in container

and

editor > pin > width

is there way fix this?

-- edit --

after few tries constraints, looks have working except 2 buttons.

current listing of constraints:

as suggested others, should consider using auto-layout feature if plan on constructing views using ib.

here tutorial links:

raywenderlich.com part one

youtube video 1 covers bit of size clases

hope help.

updated:

i've read updated post, need add width , height constraints. view see in ib right 600 600 points, , simulator 1 smaller, means if leave is, when run app you'll see iphone screen has capacity show.

you need add more constraints used, try defining equal width buttons, , assign left 1 left margin constraint, right 1 right margin constraint, give both of them vertical spacing constraint related text view or long label, text view or long label should have left , right margin constraints, height constraint , top constraint textfield, textfield should have vertical spacing constraint label, left , right , height constraint, , last label should have leff, right , height constraints plus top constraint main view.

i feel need, xcode through warnings @ if feels missing something.

try it, , let know.