paint method

@override void paint(Canvas canvas, Paint paint, Size size)

Paint method for the sub class to override and render their loading style

Implementation

@override
void paint(Canvas canvas, Paint paint, Size size) {
  var circleSpacing = 4;
  var width = size.width;
  var height = size.height;
  var radius = width / 6;
  var x = width / 2 - (radius * 2 + circleSpacing);
  var y = height / 2;
  for (int i = 0; i < 3; i++) {
    canvas.save();
    var translateX = x + (radius * 2) * i + circleSpacing * i;
    canvas.translate(translateX, y);
    canvas.scale(scaleDoubles[i], scaleDoubles[i]);
    canvas.drawCircle(const Offset(0, 0), radius, paint);
    canvas.restore();
  }
}