Build a Rainbow Drawing Animation in Flutter 🌈 CustomPainter + PathMetrics Explained
In this Flutter animation tutorial, we build a beautiful rainbow drawing animation where colored strips appear one by one and gradually form a complete rainbow.
To achieve this effect, we use Flutter’s CustomPainter along with AnimationController and advanced path techniques.
Instead of drawing everything at once, each colored arc is animated along a path, creating a smooth and visually appealing rainbow effect.
🚀 Concepts Covered in This Video:
✅ Creating animated drawings using CustomPainter
✅ Using AnimationController for smooth frame-based animation
✅ Drawing curved shapes with Path
✅ Understanding PathMetrics to measure path length
✅ Using Tangent to animate objects along a path
✅ Creating sequential strip animations
✅ Building creative canvas-based animations in Flutter
This tutorial is great for developers who want to explore advanced canvas animations and path-based motion in Flutter.
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