Xamarin Forms Rounded SearchHandler - xamarin.forms

Question

I am testing new Shell Page in Xamarin Forms.
I am wondering if the search handler could be personalize, for example apply a rounded effect on search corner.
I tried to redefine the Template of SearchHandler but it just change the appearance of the result request of Search Handler (How suggestion are show to user).
Thanks so much for your help !

Answer 1

I am back after severals test.
I find one way to do it easily.
For Top Navigation Bar in Shell App, there is a "Shell.TitleView" tag.
You can inside this tag define a personalize template.
So i deleted the "SearchHandler" and implement inside "Shell.TitleView" a Custom SearchBar with Rounded Corner.
It works pretty fine.
I can give you sample if needed.
If you know another way to do it, i will be a pleasure to test it.
Thanks

Answer 2

I think it's impossible to implement the Rounded SearchHandler if using SearchHandler in Shell Application .
First , about SearchHandler appearance , there is no way to change the Round of it :
BackgroundColor, of type Color, is the color of the background to the search box text.
CancelButtonColor, of type Color, is the color of the cancel button.
CharacterSpacing, of type double, is the spacing between characters of the SearchHandler text.
FontAttributes, of type FontAttributes, indicates if the search box text is italic or bold.
FontFamily, of type string, is the font family used for the search box text.
FontSize, of type double, is the size of the search box text.
HorizontalTextAlignment, of type TextAlignment, is the horizontal alignment of the search box text.
PlaceholderColor, of type Color, is the color of the placeholder search box text.
TextColor, of type Color, is the color of the search box text.
VerticalTextAlignment, of type TextAlignment, is the vertical alignment of the search box text.
Second , if using Shell Custom Renderers also can not found SearchBar in NavigationController .
For example in iOS shell renderer :
public class CustomNavBarAppearanceTracker : IShellNavBarAppearanceTracker
{
public void Dispose()
{
//throw new NotImplementedException();
}
public void ResetAppearance(UINavigationController controller)
{
//throw new NotImplementedException();
}
public void SetAppearance(UINavigationController controller, ShellAppearance appearance)
{
//throw new NotImplementedException();
//var seabar = controller.SearchDisplayController.SearchBar;
controller.NavigationBar.BackgroundColor = UIColor.Red;
Console.WriteLine("-----"+controller.NavigationItem.SearchController.SearchBar);
}
public void UpdateLayout(UINavigationController controller)
{
//throw new NotImplementedException();
}
}
The Output is : controller.NavigationItem.SearchController.SearchBar = null
If not using SearchHandler , you can have a try with Custom SearchBar Renderer to implement it .