private void Button_Clicked(object sender, EventArgs e)
{
pageVM.IsClear = !pageVM.IsClear;
pageVM.DisplayButtonText = pageVM.IsClear ? $"Draw {drawType.ToString()}" : "Clear";
DrawSKCanvasView.InvalidateSurface();
}
async Task AnimationLoop()
{
stopwatch.Start();
while (isRun)
{
double cycleTime = MySlider.Value;
double t = stopwatch.Elapsed.TotalSeconds % cycleTime / cycleTime;
scale = (1 + (float)Math.Sin(2 * Math.PI * t)) / 2;
DrawSKCanvasView.InvalidateSurface();
await Task.Delay(TimeSpan.FromSeconds(1.0 / 30));
}
stopwatch.Stop();
}