Overview
NumberPicker is a Flutter widget that enables users to select numbers through scrollable spinners, offering an intuitive and interactive way to input numeric values. It supports smooth scrolling, customizable range, step increments, and formatting options. Designed for cross-platform use, it works seamlessly on Android, iOS, Web, macOS, Windows, and Linux. The widget is ideal for forms requiring precise number input, such as age, quantity, or settings adjustments.
Use cases
- Form inputs with numeric values
- Adjusting settings like volume or speed
- Quantity selection in shopping carts
- Age or date of birth entry
- Customizable number ranges in UIs
Key features
- Scrollable spinner interface
- Configurable min/max values
- Step increment control
- Custom formatting support
- Cross-platform compatibility
- Smooth animation during scrolling
Suitable for
- Developers building form-based apps
- UI designers needing interactive number input
- Apps requiring precise numeric selection
- Cross-platform applications targeting multiple devices
Considerations
- May require additional styling for custom appearance
- Limited built-in validation beyond range bounds
- Performance impact with very large number ranges
- Not suitable for non-numeric data types