Package: AnimationControl

AnimationControl is the smallest package in the repository. It provides a control base class that continuously requests the next animation frame while the control is attached to the visual tree.

Install

dotnet add package AnimationControl

Core API

Subclass AnimationControl and override:

protected override void OnAnimationFrame(TimeSpan now, TimeSpan last)
{
    // update your state
}

Then render the current state in Render(DrawingContext context).

Example

The sample project includes an EllipseAnimationControl that updates horizontal position each frame and draws the ellipse through normal Avalonia drawing primitives:

public class EllipseAnimationControl : AnimationControl
{
    private double _position;
    private double _velocity = 120;

    protected override void OnAnimationFrame(TimeSpan now, TimeSpan last)
    {
        var delta = now - last;
        _position += _velocity * delta.TotalSeconds;
        var limit = Math.Max(0, Bounds.Width - 40);
        if (_position > limit || _position < 0)
        {
            _velocity = -_velocity;
            _position = _position < 0 ? 0 : (_position > limit ? limit : _position);
        }
    }

    public override void Render(DrawingContext context)
    {
        var center = new Point(20 + _position, Bounds.Height / 2);
        context.DrawEllipse(Brushes.DarkRed, null, center, 20, 20);
    }
}

When to use it

Use AnimationControl when:

Avalonia drawing primitives are enough,
you do not need explicit playback commands,
you want the fewest dependencies possible.

If you need Skia rendering, repeat counts, seek support, or redraw-only mode, use CompositionAnimatedControl instead.