I want to give a blur effect on the background

I want to blur the background like the picture aboveYo

When I searched, I think it's a lot of blurring images, but it's a little different from the form I'm trying to implement.

I used ViewFlipper where pictures change periodically in the back layout.

I want to make it so that the picture changes behind the fragment because the fragment is overlaid, but it doesn't work well.

I took the layout behind the fragment and tried to blur it out.

Or should we make the fragments transparent?