Adaptive Mobile List Navigation via Dynamic Pane Expansion
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Solution Overview
Problem
Mobile terminals face limitations in user interface manipulation due to their small screen size, where lists and tabs often move in fixed directions after item deletion or addition, leading to inconvenient navigation and user experience.
Innovation Solution
A method that automatically expands and contracts panes on a mobile device's screen based on user interaction, determining the direction of recent movement to adjust the display of items, allowing for dynamic changes in list manipulation and tab selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the list moves in a fixed direction after item deletion, then the list structure remains simple and predictable, but the user experience becomes inconvenient and navigation efficiency decreases
Solution Approach 1:
The patent applies dynamics by making the list movement direction adaptive rather than fixed. The system dynamically determines the movement direction based on the user's previous interaction direction, allowing the interface to adapt its behavior in real-time. This resolves the contradiction by improving ease of operation through adaptive navigation while managing complexity through context-aware decision logic.
Solution Approach 2:
The system implements feedback by monitoring the user's previous interaction direction and using that information to determine subsequent list movement behavior. After an item is deleted, the system feeds back the direction information to automatically adjust the list movement, creating a closed-loop control that enhances user experience without requiring manual reconfiguration.
2Length of moving object
If the screen size is kept small to enhance portability, then the device becomes more portable, but the display area for content and user interface options is limited
Solution Approach 1:
The patent applies dynamics by implementing dynamically adjustable panes that can expand and contract based on user interaction. Instead of providing all interface options simultaneously on a limited screen, the system dynamically reveals additional options and content as users interact with the interface, effectively increasing the usable display area without changing the physical screen size.
Solution Approach 2:
The system transitions from a static two-dimensional display layout to a dynamic multi-dimensional interaction model. By implementing expandable panes and contextual menus that appear in response to user actions, the system utilizes the temporal dimension to provide additional interface real estate, effectively overcoming the physical screen size limitation while maintaining portability.
3Loss of information
If multiple interface options are provided to maximize content display, then content visibility is improved, but the user interface becomes more complex and burdensome
Solution Approach 1:
The patent applies segmentation by dividing the user interface into separate, manageable panes that can be independently controlled and displayed. Instead of presenting all interface options at once, the system segments functionality into contextual groups that appear based on user needs, reducing perceived complexity while maintaining comprehensive content visibility through organized presentation.
Data Source
AI summary
A method for operating a list in a mobile terminal is disclosed. An example method includes displaying a first set of items from an item list in the mobile terminal, changing the item list based on a received command, determining a direction of most recent movement in the item list before the receiving of the command, determining items from the item list to display according to the determined direction and the change of the item list, and displaying the determined items from the item list.