SearchTextPage.xaml

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:controls="clr-namespace:XamForms.Enhanced.Views;assembly=XamForms.Enhanced"
             xmlns:prism="clr-namespace:Prism.Mvvm;assembly=Prism.Forms"
             prism:ViewModelLocator.AutowireViewModel="True"
             x:Class="Medium.Sample.Views.SearchText"
             Title="{Binding Title}">
    <ContentPage.Content>
        <SearchBar Text="{Binding SearchText.Value}"
    </ContentPage.Content>
</ContentPage>