在Xamarin.iOS中模糊UIImage异步

Question

I want to blur an image asynchronously in Xamarin.iOS, but when I try, I get an exception telling me I cannot do this outside the main thread (it calls EnsureUIThread ).

I have tried 2 ways of doing this: FXBlurView and ImageEffects , but they both don't allow asynchronous blurring.

How can I make the blurring happen asynchronously?

Answer 1

There's a simple answer, separate the blurring and the actual creation of the UIImage . The blurring can happen on an other thread or async, and the actual usage of the image should happen on the UI thread.