Support for multi-selection is strongly recommended for list and grid containers. This does not apply to actions available for a single selection (like a list of phone numbers, where calling is the only action), or if the context requires single-item manipulation (like moving icons on Android’s home screen).
Gestures:
- When initiating selection, both long-press and two-finger touch may be extended using a drag gesture to select multiple items. Items between the beginning and end points of the drag will be included in the selection.
- On desktop, a drag originating outside the bounds of all items may initiate multi-selection (for example, beginning a drag in the left margin of a list, and extending down and to the right to select list items).
Once an initial selection is made, it can be altered through user actions:
- Touch a selected item to deselect it. Touch an unselected item to select it.
- Shift+touch/click on an item to select all items between two selected points.
