Dynamic Resizing Handle Activation Regions for Touch Interface Precision
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Solution Overview
Problem
Existing methods for manipulating user interface objects on touch-sensitive surfaces are cumbersome and inefficient, requiring multiple steps and increasing cognitive burden, especially in battery-operated devices.
Innovation Solution
The implementation of a method that simultaneously displays user interface objects with resizing handles and their corresponding activation regions, allowing for direct input to resize and reposition objects, with dynamic modification of handle activation regions to improve accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional resizing handles with fixed activation regions are used, then the interface structure is simple, but it is difficult to accurately select and reposition resizing handles, requiring additional user steps
Solution Approach 1:
The activation region of the resizing handle is made dynamic rather than fixed. When a user hovers over or approaches a resizing handle, the activation region expands or becomes more prominent, making it easier to select. This dynamic behavior allows the system to improve selection accuracy without permanently complicating the interface structure.
Solution Approach 2:
The system performs preliminary actions by pre-highlighting or expanding the activation region of resizing handles before the user actually selects them. This preliminary visual feedback helps users accurately identify and position their selection without requiring additional manual adjustment steps.
2Measurement precision
If manual magnification is used to accurately select resizing handles, then selection accuracy improves, but the number of user inputs and time required increases
Solution Approach 1:
Instead of requiring users to manually magnify the view, the activation region of the resizing handle dynamically expands or becomes more visually prominent in response to user interaction. This dynamic response provides the necessary precision immediately, eliminating the time-consuming magnification steps.
Solution Approach 2:
The system provides immediate visual feedback when a user approaches or hovers over a resizing handle, showing the expanded activation region. This feedback loop allows users to accurately select and reposition handles in real-time without requiring separate magnification actions, reducing overall interaction time.
3Measurement precision
If multiple steps are required to manipulate user interface objects, then manipulation precision may improve, but cognitive burden and operational complexity increase
Solution Approach 1:
The invention merges the selection and manipulation functions into a single integrated interaction. The dynamic activation region allows users to select and begin manipulating the object in one continuous action, rather than requiring separate steps for selection and then manipulation, thereby reducing cognitive burden while maintaining precision.
Solution Approach 2:
The activation region dynamically adapts its size and visibility based on user interaction state, providing precision when needed during manipulation while maintaining simplicity during normal display. This dynamic behavior reduces the perceived complexity of operations without sacrificing manipulation precision.
Data Source
AI summary
A computing device with a touch screen display simultaneously displays on the touch screen display a plurality of user interface objects displayed at a first magnification level in a display area. The device detects a first contact on a first handle activation region for a first handle of a user interface object. In response to continuing to detect the first contact at for a predefined amount of time, the device zooms the display area to a second magnification level. While the display area is at the second magnification level, the device: detects a movement of the first contact across the touch screen display; moves the first handle in accordance with the detected movement of the first contact; and detects liftoff of the first contact. In response to detecting liftoff of the first contact, the device zooms the display area to the first magnification level.