c# - How to anchor UI elements to the bottom of a Relative Layout and expand upward in Xamarin Forms? -


i have pretty picture of sunrise. want relatively position elements under it. i've been doing ok computing more or less height top sunrise ends , beginning text there. now, i'd different way. want put stacklayout, anchor stacklayout @ bottom , expand upwards.

this code i've started with, doesn't accomplish it. i found other post similar didn't have luck doing (you can see end in code below. suspect relatively positioned image sitting behind problem.

<contentpage.content>     <stacklayout orientation="vertical">         <relativelayout padding="0,0">             <image source="{ext:imageresource myapp.sunrise.png}" aspect="aspectfill" relativelayout.widthconstraint="{constraintexpression type=relativetoparent, property=width}" heightrequest="250" />             <stacklayout relativelayout.widthconstraint="{constraintexpression type=relativetoparent, property=width}" heightrequest="250" verticaloptions="end" horizontaloptions="startandexpand">                 <label text="apples , oranges"/>                 <label text="meat , potatoes"/>             </stacklayout>         </relativelayout>     </stacklayout> </contentpage.content>

here's sketch:

sketch


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