NAVIGATION PATTERN ON A DIRECTORY TREE

摘要

Navigation management occurs in a mobile device during a directory up-down scroll and it involves a user interface and a directory (e.g. mobile directory of photos). The directory is a tree-shaped hierarchy of nodes such that any node on the directory is selectable by a user via the user interface. This way navigation can flow up-down through the directory. Additionally, the navigation management involves associating a state and one or more action items with each node and saving the state. The state is an expanded or collapsed condition of the node. If the state of a particular node is expanded, additional nodes at a lower level of the hierarchy are presented to the user. If its state is collapsed only that particular node is presented and the other nodes are hidden. The user interface includes for any node selected by the user its associated one or more action items.