platform-registers

A modal list of choices that slides up from the bottom of a phone screen in response to something you just did, with cancel at the end.

A short menu of app actions hung off the app icon itself, opened by a long press or a secondary click before the app is even running.

A slot on a watch face filled with one live figure from an app, sized to be read in the second a wrist is raised.

A persistent strip of application icons anchored to a screen edge, holding launchers, running apps and pinned items in one row.

A persistent, updating view of something in progress, shown in system places like a lock screen so a reader can follow it without opening the app.

A permanent horizontal row of menu titles (File, Edit, View) whose menus open on click and then follow the pointer along the row.

A small application controlled item living in the system menu bar or tray, usually an icon that opens a compact panel of status and controls.

A small panel of controls that floats just outside a window edge in visionOS, staying with the window without covering its contents.

A one tap button or toggle an app contributes to the system control surface, so one feature can be reached without opening the app.

A tall tabbed toolbar that replaces menus, grouping commands into labelled sections with the important ones drawn larger.

The strip along the top of a window carrying its title and window controls, and the region you drag to move the window.

The on screen keyboard a device raises for a field, whose key set the field itself chooses by declaring what kind of value it wants.

A spinning drum of values that snaps to the item under a fixed selection line, the iOS way of choosing from a short list.

A small, glanceable view of an app placed on a system surface such as a home screen or desktop, sized in fixed slots rather than freely.

The cluster of close, minimise and zoom controls in a window's title bar, three coloured dots on macOS and three glyphs on Windows.

The physical fold state of a foldable device, such as flat, book or tabletop, which a layout can respond to alongside plain size.

The camera housing that intrudes into the screen rectangle, which a layout has to route content around rather than under.

Drawing an app behind the system bars so content reaches the physical screen edges, with insets applied only to what must stay tappable.

The thin bar at the bottom of a gesture driven phone screen, reserved space that app content must not sit beneath.

Designing and writing the narrow layout first and adding rules as space is gained, so the small screen is the default rather than the fallback.

A windowing mode where two or more apps share one screen, side by side, stacked, or as freeform windows, so every app must survive being any size.

The inset a television layout keeps clear of the screen edge, about five percent, because sets crop the outer frame and anything near it disappears.

The part of the screen guaranteed clear of notches, system bars and rounded corners, where interactive content can safely sit.

How an app arranges itself when one window is stretched across two displays, either keeping content clear of the seam or splitting the layout exactly at it.

The arc of a phone screen a thumb reaches comfortably in a one handed grip, with harder to reach bands above and across from it.

A named bucket for how much width an app window has, such as compact, medium and expanded, used in place of raw device categories.

The register for screens read from a couch: focus-driven navigation with a remote, oversized type and cards, horizontal rails, and safe margins for TV overscan.

A platform feature that scales interface text to a size the reader chose in system settings, with layouts expected to reflow around it.

Interface designed to sit in three dimensional space, where panels are made of a system glass material and hierarchy is carried by depth rather than by colour.

The platform flag on a native view that says what it is and how it behaves, the mobile counterpart to a role plus a state, and the thing a custom control has to set by hand.

Moving focus by direction rather than by sequence, so arrow keys, a D-pad, or a TV remote jump to the nearest control up, down, left, or right.