Image flickering on Listview Search - xamarin.forms - xamarin.forms

Question

In my xamarin.forms application, I have a Listview.The Listview contains images which are binded to photoURL.I have implemented a searchbox at the top of listview.Everything worked fine.But the problem now I facing is whenever I search for anything in list,the item appears.But the image will be gets flicker on each character type.I am getting the data from API that binding to the listview.
Please refer the link : https://gfycat.com/WaterloggedBeneficialGlobefish
My Image binding
<Grid>
<ci1:CircleImage
HeightRequest="200"
Source="empavatar.png"
Aspect="AspectFit">
</ci1:CircleImage>
<ci1:CircleImage
HeightRequest="200"
Source="{Binding PhotoURL}"
Aspect="AspectFit">
</ci1:CircleImage>
</Grid>
Iam using circular imageview and a template image when ImageURL is null.
My Search
private void SearchBar_TextChanged(object sender, TextChangedEventArgs e)
{
if (string.IsNullOrEmpty(e.NewTextValue))
{
EmployeeListView.ItemsSource = resultObjForEmployee;
}
else
{
EmployeeListView.ItemsSource = resultObjForEmployee.Where(x => x.Name.ToLower().StartsWith(e.NewTextValue));
}
}
resultObjForEmployee is the result that I getting from json.
Please help me to recover this problem.

Answer 1

Try setting the CachingStrategy of Listview as "RecycleElement"
<ListView CachingStrategy="RecycleElement">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Grid>
<ci1:CircleImage
HeightRequest="200"
Source="empavatar.png"
Aspect="AspectFit"></ci1:CircleImage>
<ci1:CircleImage
HeightRequest="200"
Source="{Binding PhotoURL}"
Aspect="AspectFit"></ci1:CircleImage>
</Grid>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>