A blurring view for Android

I've tried BlurringView on a full screen View, the right edge of the View seems not blurred... How can I fix this?

I'm wondering how fast drawing each frame of the underlying view into a bitmap is. That's not hardware accelerated is it? Or are you using some kind of off-screen gpu buffer to do that?

Isn't RenderScript available since API level 11? And there is also a SupportLibrary version that is available for even older versions of Android. What do you mean saying that it's from API level 17?