Radial List Interface for Mobile Picker Applications
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Solution Overview
Problem
Portable devices face usability issues due to their smaller display screens, which limit the effective display of location-based information and navigation among multiple pages, leading to difficulties in tracking the user's current position within layers of information.
Innovation Solution
A radial list interface is implemented on portable devices, displaying selectable items and sub-items radially positioned around hubs, allowing for efficient use of screen space and clear navigation through categories, with features like animation and semi-transparent headers to maintain visibility and readability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If location-based information is displayed on a smaller mobile display screen, then portability and mobility are improved, but the effective display area and information visibility deteriorate
Solution Approach 1:
The patent transforms the traditional linear or grid-based information layout into a radial dimension, where categories and items are arranged in concentric circles around a central hub. This radial organization allows multiple categories to be displayed simultaneously without requiring excessive horizontal or vertical space, effectively utilizing the limited screen real estate of mobile devices while maintaining clear visual hierarchy and accessibility.
2Loss of information
If multiple pages of information are displayed to provide comprehensive location-based services, then information completeness is improved, but navigation complexity and user orientation deteriorate
Solution Approach 1:
The patent merges multiple information categories and pages into a single radial view, where all categories are accessible from the central hub without requiring users to navigate through multiple separate pages. This consolidation maintains comprehensive information availability while eliminating the disorientation associated with multi-page navigation, as users can always return to the hub to see the complete category structure.
Solution Approach 2:
The radial interface provides continuous visual feedback about the user's position within the information hierarchy. The central hub remains visible or easily accessible, showing users which category they are currently viewing and what other categories are available, thereby maintaining spatial orientation and reducing navigation complexity.
3Ease of manufacture
If traditional linear lists are used to display categories and items, then implementation simplicity is improved, but screen space utilization and information density deteriorate
Solution Approach 1:
The patent transitions from a one-dimensional linear list to a two-dimensional radial layout, allowing categories to be arranged around a central point. This dimensional change enables much higher information density on the same screen area, as multiple categories can be positioned at different angular positions rather than requiring sequential vertical or horizontal space.
Solution Approach 2:
The radial arrangement uses curved, circular positioning for categories and items, allowing more efficient packing of information elements within the circular boundary of the display screen. This curved layout naturally optimizes space utilization compared to straight linear arrangements, enabling more categories and items to be displayed simultaneously.
Data Source
AI summary
A user interface of a mobile computing device having a mobile operating system and a display device utilizes a picker application to facilitate selection of an activity. More specifically, the picker application presents at least one radial list of items to provide an effective process for selecting activities categorized amongst one or more locales or neighborhoods associated with a location.