How to make app background transparent like notification in swift

Is there any reference to make an application to have a transparent background and looks like notification, so wallpaper still remain in the background when my apps running when my wallpaper has a blur effect ?

No I don't think it's possible. Here is a link to an answer that suggests a private method that allowed the functionality in iOS7.

The comments note that the private method stopped working from iOS 8.2

I imagine Apple didn't like the idea of Apps being able to either

• Fake the home screen whilst still inside an app (users might get confused and enter bank details into a fake banking app)
• Allow apps to capture a user's background

It's a shame because it could add to some nice effects like those used in iBooks and the iOS dialler.