number_flow_flutter 0.1.0

Beautiful animated numbers for Flutter — digit-by-digit rolling transitions with locale-aware formatting, springs, and motion blur.

Changelog

0.1.0

Initial release.

Widgets

• NumberFlow — animated, digit-by-digit rolling numbers. Only the digits that change animate; the rest stay put.
• NumberFlow.scrub — drive the display from a ValueListenable<num> at high frequency (sliders, chart scrubbers) without a rebuild per tick.
• TimeFlow — animated clocks, countdowns, and stopwatches, with .duration and .dateTime factory constructors.

Formatting

• Locale-aware formats via NumberFlowFormat: decimal, currency, percent, compact (1.2K), scientific (1.2×10³), and engineering notation.
• Correct grouping, sign display, numbering systems, and full RTL support.
• Prefix/suffix, per-position digit constraints (digits), and tabular figures.

Animation

• A front-loaded easing curve by default, or an opt-in iOS-like spring (NumberFlowSpring) with overshoot and velocity hand-off on interrupted rolls.
• Smooth horizontal reflow and animated box width as the number grows or shrinks; entering digits roll in, exiting digits fade out.
• Velocity-driven frosted motion blur and horizontal digit squish, with iOS-preset defaults.
• Continuous (odometer) mode, left-to-right stagger, and configurable wheel spacing.
• Adaptive top/bottom edge mask.

Accessibility

• Exposes a plain-text semantics label of the formatted value.
• Honors the platform reduce-motion setting.