lv_group_t struct

Linked list to store the objects in the group.

The object in focus.

A function to call when a new object is focused (optional).

A function to call when an edge is reached, no more focus targets are available in this direction (to allow edge feedback like a sound or a scroll bounce).

1: can't focus to new object.

1: Edit mode, 0: Navigate mode.

1: Focus prev if focused on deletion. 0: Focus next if focused on deletion.

1: Focus next/prev can wrap at end of list. 0: Focus next/prev stops at end of list.