backgroundviewpager is similar to desktop background wallpaper swipe with your finger
Android BackgroundViewPager: Swipe with your finger like a desktop background wallpaper
The function to be implemented by Android BackgroundViewPager is very similar to that of the Android desktop, that is, assuming that the user's finger flips the Android device's screen (desktop) left and right, the background wallpaper of the desktop also slides left and right, as shown in the dynamic diagram:
