I am using following packages
XF: 2.5.0.19271-pre2
Support Libraries: 2.5.4.0.2
SfNavigationDrawer: 15.3.0.33
If I have searchbar element within SfNavigationDrawer as below and it causes unfocus on searchbar. This is only happening because sfNavigationDrawer. thats why I reported here instad xamarin.
<navigation:SfNavigationDrawer x:Name="navigationDrawer" IsOpen="{Binding IsFilterOpen, Mode=TwoWay}" Position="Right" Transition="SlideOnTop" VerticalOptions="FillAndExpand" DrawerHeaderHeight="70" DrawerFooterHeight="70">
<navigation:SfNavigationDrawer.DrawerHeaderView>
</navigation:SfNavigationDrawer.DrawerHeaderView>
<navigation:SfNavigationDrawer.DrawerFooterView>
</navigation:SfNavigationDrawer.DrawerFooterView>
<navigation:SfNavigationDrawer.DrawerContentView>
</navigation:SfNavigationDrawer.DrawerContentView>
<navigation:SfNavigationDrawer.ContentView>
<StackLayout Orientation="Vertical" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand">
<SearchBar x:Name="MyAutoComplete" HorizontalOptions="FillAndExpand" PlaceholderColor="Silver" Text="{Binding SearchText, Mode=OneWayToSource}" SearchCommand="{Binding FindCommand}" />
</StackLayout>
</navigation:SfNavigationDrawer.ContentView>
</navigation:SfNavigationDrawer>