getOneLoadingCircleWidget static method

Widget getOneLoadingCircleWidget({ bool? isPaintAnimation, bool? isPaintStartStiff, double? side, double? stroke, Duration? duration, Color? colorBig, Color? colorSmall, })

Implementation

static Widget getOneLoadingCircleWidget({
  bool? isPaintAnimation,
  bool? isPaintStartStiff,
  double? side,
  double? stroke,
  Duration? duration,
  Color? colorBig,
  Color? colorSmall,
}) {
  isPaintAnimation ??= false;
  isPaintStartStiff ??= false;
  side ??= 64.0;
  stroke ??= 4.0;
  double radius = side / 2;
  double strokeWidth = stroke;
  Size size = Size(side, side);
  Duration time = duration ?? const Duration(milliseconds: 1000);

  if (!isPaintAnimation) {
    return RotateWidget(
      child: CustomPaint(
        size: size,
        painter: LoadingIconPainter(
          radius: radius,
          strokeWidth: strokeWidth,
          color1st: colorBig,
          color2nd: colorSmall,
        ),
      ),
    );
  }
  Widget paintView;
  Widget getPainterView(bool isRepeatWithReverse, List<double> Function(double progress) getAngels) {
    return getOnePainterWidget(
      size: size,
      isRepeat: true,
      duration: time,
      isRepeatWithReverse: isRepeatWithReverse,
      painter: (progress) {
        List<double> ratios = getAngels(progress);
        return LoadingIconPainter(
          radius: radius,
          strokeWidth: strokeWidth,
          ratio1stPoint: ratios.first,
          ratio1stSweep: ratios.last,
          color1st: colorBig,
          color2nd: colorSmall,
        );
      },
    );
  }

  if (isPaintStartStiff) {
    double _previous = 0;
    int repeatCount = 0;
    paintView = getPainterView(false, (progress) {
      if (_previous > progress) {
        repeatCount++;
      }
      _previous = progress;
      double start = 0.0;
      double length = progress + repeatCount;
      return [start, length];
    });
  } else {
    double _previous = 0;
    bool isReversing = false;
    paintView = getPainterView(true, (progress) {
      isReversing = _previous > progress;
      _previous = progress;
      double start = isReversing ? 1.0 - progress : 0.0;
      double length = isReversing ? 1.0 - start : progress;
      return [start, length];
    });
  }
  return paintView;
}