private async Task AnimatePathTo(CAShapeLayer shapeLayer, float duration, UIBezierPath toBezierPath)
{
var fromCgPath = FromObject(shapeLayer.Path);
var toCgPath = FromObject(toBezierPath.CGPath);
shapeLayer.Path = toBezierPath.CGPath;
await AnimationUtils.BasicAnimationAsync(shapeLayer, "path", duration, fromCgPath, toCgPath, CAMediaTimingFunction.EaseInEaseOut);
}
public async Task Pulse(float duration)
{
var halfDuration = duration / 2;
await AnimationUtils.BasicAnimationAsync(_layer, "strokeEnd", halfDuration, 0f, 1f, CAMediaTimingFunction.EaseInEaseOut);
await AnimationUtils.BasicAnimationAsync(_layer, "strokeStart", halfDuration, 0f, 1f, CAMediaTimingFunction.EaseInEaseOut);
await ResetLayer();
}
/// <summary>
/// Resetting the strokeEnd and strokeStart is a little tricky since it will animate
/// to the values you set it to if you aren't careful and that looks bad
/// </summary>
/// <returns></returns>
private async Task ResetLayer()
{
_layer.Opacity = 0f;
await AnimationUtils.BasicAnimationAsync(_layer, "strokeEnd", .01f, 1f, 0f, CAMediaTimingFunction.Linear);
await AnimationUtils.BasicAnimationAsync(_layer, "strokeStart", .01f, 1f, 0f, CAMediaTimingFunction.Linear);
_layer.Opacity = 1f;
}
