In order to customize the AutoComplete to that extend, you need to work with the native elements of each platform. You can access them through custom renderers
. Eventually, you can access each native element (for example the RadAutoCompleteTextView in Android) and try to achieve the customizations through them. This would take extra efforts from your side but you can try achieving the behavior this way. In the Examples folder of your local Telerik UI for Xamarin installation(usually C:\Program Files (x86)\Progress\Telerik UI for Xamarin R1 2018\Examples
) you can find Android and iOS folders which show scenarios that use the native elements. Please have a look at them and consider such approach from your end.
Basically, the functionality is not available through Xamarin.Forms only at this point. Where is the example you are referencing? Did you find it in some of the sample applications we have created?
Have a great rest of the week.
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