<Page showingModally="onShownModally">
    <StackLayout id="layout" >
        <Label backgroundColor="green" id="label1" text="short" textWrap="true" />
        <Label backgroundColor="red" id="label2" text="" textWrap="true" />
        <Button text="Change text" tap="change" />
        <Button text="Close" tap="onTap" />
    </StackLayout>
</Page>