INNER CODE UNIT · Dart

animationProgress

LanarsInc/animated-bottom-navigation-bar-flutter · lib/src/bubble_selection_painter.dart:20

    var animationProgress = bubbleRadius / maxBubbleRadius;

    double strokeWidth = bubbleRadius < maxBubbleRadius * 0.5 ? bubbleRadius : maxBubbleRadius - bubbleRadius;

    final paint = Paint()
      ..color = Color.lerp(bubbleColor, endColor, animationProgress)!
      ..strokeWidth = strokeWidth
      ..style = PaintingStyle.stroke;

    canvas.drawCircle(Offset(size.width / 2, size.height / 2), bubbleRadius, paint);
  }

  @override
  bool shouldRepaint(CustomPainter oldDelegate) => true;
}

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