Could someone help me understand how to correctly convert a custom renderer to a .NET MAUI handler?
In Xamarin.Forms, I have a universal renderer that I can attach to any user control. I override methods like public override void Draw(Android.Graphics.Canvas canvas)
to draw custom content directly on the controls. This approach is convenient because it doesn’t require wrapping the controls with additional views — it’s straightforward and efficient.
Now, I’m trying to migrate this to .NET MAUI. I’ve attempted using ElementHandler<XF, A>
and ViewHandler<XF, A>
, but both approaches seem to require creating a platform view, which adds complexity.
Could you provide guidance on how to achieve similar functionality in .NET MAUI without the need to create additional platform views? What’s the best practice for this scenario in MAUI?
[assembly: ExportRenderer(typeof(XFUserControl1), typeof(MyEffectRenderer<Xamarin.Forms.View, Android.Views.View>))]
[assembly: ExportRenderer(typeof(XFUserControl2), typeof(MyEffectRenderer<Xamarin.Forms.View, Android.Views.View>))]
[assembly: ExportRenderer(typeof(XFUserControl3), typeof(MyEffectRenderer<Xamarin.Forms.View, Android.Views.View>))]
[assembly: ExportRenderer(typeof(XFUserControl4), typeof(MyEffectRenderer<Xamarin.Forms.View, Android.Views.View>))]
[assembly: ExportRenderer(typeof(XFUserControl5), typeof(MyEffectRenderer<Xamarin.Forms.View, Android.Views.View>))]
namespace MyApp.Droid.CustomRenderers
{
public class MyEffectRenderer<XF, A>
: ViewRenderer<XF, A>
where XF : Xamarin.Forms.View
where A : Android.Views.View
{
public MyEffectRenderer(Context context)
: base(context)
{
}
public override void Draw(Android.Graphics.Canvas canvas)
{
base.Draw(canvas);
// do my custom magic here
}
}
}