fl_pretty_charts 0.5.0

A beautiful, animated Flutter charts package. Includes Bar, Line, Pie/Donut, and Radar charts. Zero dependencies — pure Flutter custom painter.

Changelog

All notable changes to fl_pretty_charts will be documented here. This project follows Semantic Versioning.

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0.5.0

Added

• 🥧 FlPieChart — animated pie and donut chart widget
• PieChartData — main data model with full style configuration
• PieSegment — single segment with value, label, color, optional gradient
• LegendStyle — configurable legend with position, dot size, spacing
• CenterLabelStyle — title + value label for donut center
• PieTooltipStyle — tooltip appearance configuration
• Donut variant via PieChartData.donut = true
• Configurable inner radius via donutRadius
• Tap-to-expand segments with glow highlight effect
• Legend tap to highlight/deselect segments
• Animated opacity on unselected legend items
• Percentage display in legend labels
• Configurable segment gap and start angle
• Full dartdoc on all public APIs

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0.1.2

Fixed

• Replaced withOpacity() with withValues() for Flutter 3.27+ compatibility
• Switched CI analyze flag from --fatal-infos to --fatal-warnings
• Bumped Flutter version in all CI/CD workflows to 3.27.0

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0.1.1

Fixed

• Improved CI/CD pipeline with pub-credentials.json based publishing
• Updated publish workflow for more reliable pub.dev deployment

0.1.0

Added

• 📈 FlLineChart — animated line chart widget with left-to-right draw
• LineChartData — main data model for line charts
• LineData — single line series with points and style config
• LinePoint — individual data point with x, y, and label
• LineStyle — stroke width, color, gradient, fill, dots, smooth toggle
• AxisLineStyle — grid and axis config for line charts
• LineTooltipStyle — tooltip appearance for line charts
• Smooth bezier curves between data points
• Gradient area fill below each line
• Animated left-to-right line draw
• Dot indicators at each data point with tap highlight
• Multi-line support — render multiple series on one chart
• Tap-to-tooltip interaction on data points

0.0.1

Added

• 📊 FlBarChart — animated bar chart widget
• BarChartData — main data model with full style configuration
• BarData — single bar model with value, label, optional color override
• BarStyle — border radius, width fraction, gradient support
• AxisStyle — grid lines, y-axis divisions, label text style
• TooltipStyle — tap tooltip appearance configuration
• ChartAnimation — animation config with 4 presets:
  • elegant() — 1200ms easeOutCubic
  • snappy() — 400ms easeOutBack
  • bouncy() — 800ms elasticOut
  • none() — instant render
• ChartTheme — 4 built-in color palettes:
  • defaultTheme() — indigo, teal, amber, orange, purple
  • ocean() — cool blue-green palette
  • sunset() — warm reds and oranges
  • forest() — nature-inspired greens
• ChartUtils — shared drawing utilities (niceMax, valueToY, formatValue)
• ChartAnimationMixin — reusable animation lifecycle mixin
• Zero external dependencies — pure Flutter CustomPainter
• Full dartdoc documentation on all public APIs
• Full test suite — 27 tests passing
• Example app demonstrating all bar chart configurations