Snap Point Ranges for Mixed Scroll Containers
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Solution Overview
Problem
Conventional scrolling UI containers are limited to either continuous panning or discrete snapping modes, which can result in undesirable partial visibility of content or limited scrolling positions, respectively, failing to provide a seamless user experience for mixed content types like maps and text items.
Innovation Solution
Implementing snap point ranges that allow a UI container to mix both continuous and discrete scrolling behaviors by specifying snap points and ranges, enabling complete visibility of snap items while allowing smooth panning between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If discrete snap points are used for scrolling, then complete visibility of discrete items is achieved, but scrolling flexibility and smooth panning are lost
Solution Approach 1:
The patent implements dynamic snapping behavior where the system transitions from static snap points to dynamic snap point ranges. The snap behavior is activated conditionally based on whether the scrolling container contains discrete items or continuous content, allowing the system to adapt its scrolling mode dynamically. This resolves the contradiction by enabling complete item visibility when needed while maintaining smooth panning for continuous content.
Solution Approach 2:
The patent changes the parameter of snap point definition from fixed discrete points to ranges with start and end positions. By introducing range-based snap points with adjustable parameters (start position, end position, and associated discrete items), the system can control snapping behavior more precisely. This allows complete visibility of discrete items within the range while permitting smooth scrolling in other areas.
2Ease of operation
If continuous panning is allowed, then scrolling flexibility is improved, but complete visibility of discrete items cannot be guaranteed
Solution Approach 1:
The patent applies different scrolling behaviors to different regions of the same container. Snap point ranges are defined locally for specific discrete items, allowing complete visibility for those items while permitting continuous panning in other regions. This local differentiation resolves the contradiction by applying precision control only where discrete items exist while maintaining flexibility elsewhere.
Solution Approach 2:
The patent segments the scrolling container into multiple snap point ranges, each associated with specific discrete items. Each segment can have its own snapping behavior independently controlled, allowing some regions to snap to complete item visibility while others allow continuous panning. This segmentation enables simultaneous coexistence of both behaviors in different parts of the container.
3Adaptability or versatility
If multiple discrete content types with various sizes are placed in one container, then content versatility is improved, but consistent display and scrolling behavior becomes complex
Solution Approach 1:
The patent creates a universal snap point range mechanism that can handle multiple discrete content types with various sizes through a single unified system. The snap point range structure (with start position, end position, and associated items) serves as a multi-functional template that adapts to different content types automatically. This universality reduces complexity by providing a single scrolling behavior management system for all content types rather than requiring separate handling for each.
Solution Approach 2:
The patent enables the scrolling system to automatically determine and apply appropriate snap behavior based on the content present in the container. The system self-adjusts by detecting discrete items within snap point ranges and automatically applying snapping rules without requiring manual configuration for each content type. This self-service capability simplifies management of diverse content by making the system adaptive rather than requiring complex external control.
Data Source
AI summary
The described technology is directed towards scrollable user interface containers, and allows mixing snap items and smooth items in the same container. Snap point ranges that correspond to container snap items are specified, such as by pixel values or per container item to be rendered. When because of a scroll operation a snap item of the container overlaps a boundary of a viewing port (e.g., if rendered), the scroll position is adjusted based upon a snap point range limit to snap the snap item for rendering based upon the viewing port boundary.