PhotoQ. I just upgraded my iPad to iOS 11, and while I liked dragging my favorites into the little bar of apps across the bottom of the screen, the bar itself doesn’t stay there consistently. Like the desktop version, the iOS 11 dock is designed to hide when you do not need it. The auto-hide behavior in macOS is optional and can be changed in the System Preferences, but the iOS 11 dock is designed to disappear to minimize screen clutter when you open an app on the iPad. To switch between other running apps, drag your finger up from the bottom of the screen when the dock is showing. Swipe the screen to the left or the right to see all the open app windows.
Source: New York Times October 03, 2017 13:33 UTC