xamarin - Align View to bottom and top in RelativeLayout XamarinForms -

i want align 1 image top , 1 image bottom of relativelayout in xamarin.forms. how can this?

<relativelayout>             <image                  aspect="fill"                 source = "header_login.png"></image>             <image                  aspect="fill"                 source = "login_footer_2.png"                 relativelayout.xconstraint=                  "{constraintexpression type=relativetoparent,                                         property=width,                                         factor=0}"                 relativelayout.yconstraint=                  "{constraintexpression type=relativetoparent,                                         property=height,                                         factor=1}" ></image> </relativelayout> 

i found may useful you. if not done using relativelayout, can still have want using stacklayout.

the idea :

<stacklayout>   <stacklayout  verticaloptions="start">   <image/> <!--top image-->   </stacklayout>    <stacklayout verticaloptions="centerandexpand">     <!-- middle controls -->   </stacklayout>    <stacklayout orientation="horizontal" verticaloptions="end">     <image/> <!--bottom image-->   </stacklayout> </stacklayout> 

by expanding middle stacklayout take al remained spaces pushing other 1 on top , on bottom respectively. useful me have fixed bottom. https://stackoverflow.com/a/30143144/3324840