---
name: maui-animations
description: >
  .NET MAUI view animations, custom animations, easing functions,
  rotation, scale, translation, and fade effects.
  USE FOR: "animate view", "fade in", "fade out", "slide animation", "scale animation",
  "rotate view", "translate view", "easing function", "custom animation", "animation chaining",
  "ViewExtensions animation".
  DO NOT USE FOR: gesture recognition (use maui-gestures), custom drawing (use maui-graphics-drawing),
  or static layout changes (use maui-data-binding).
---

# .NET MAUI Animations

## Common Mistakes

### ❌ Forgetting to cancel before starting new animations

Running multiple animations on the same property causes visual glitches.

```csharp
// ❌ If called rapidly, animations queue and overlap
async void OnButtonClicked()
{
    await view.FadeTo(0, 500);
    await view.FadeTo(1, 500);
}

// ✅ Cancel first, then animate
async void OnButtonClicked()
{
    view.CancelAnimations();
    await view.FadeTo(0, 500);
    await view.FadeTo(1, 500);
}
```

### ❌ Custom Animation repeat callback misconception

Returning `true` from a **child** animation's `repeat` callback does NOT repeat the parent. Only the `repeat` callback passed to `Commit` on the **parent** controls parent repetition.

```csharp
// ❌ This does NOT loop the parent animation
parent.Add(0.0, 1.0, new Animation(v => view.Scale = v, 1, 2));
parent.Commit(view, "MyAnim", length: 1000,
    repeat: () => false);  // Parent won't loop

// ✅ Loop the parent by passing repeat to Commit
parent.Commit(view, "MyAnim", length: 1000,
    repeat: () => true);  // This loops the entire animation
```

### ❌ AbortAnimation name mismatch

`AbortAnimation("name")` must match the exact string passed to `Commit`. A mismatch silently does nothing.

```csharp
// ❌ Name mismatch — animation keeps running
parent.Commit(view, name: "MyAnimation", length: 1000);
view.AbortAnimation("myAnimation");  // Wrong case!

// ✅ Use a constant for the name
const string AnimName = "MyAnimation";
parent.Commit(view, name: AnimName, length: 1000);
view.AbortAnimation(AnimName);
```

## Accessibility: Respect Reduced Motion

**Always** check `IsAnimationEnabled` before running animations. It is `false` when the OS power-save / reduced-motion mode is active.

```csharp
// ❌ Ignores user's accessibility preference
await view.FadeTo(1, 500);

// ✅ Respects reduced-motion settings
if (view.IsAnimationEnabled)
    await view.FadeTo(1, 500);
else
    view.Opacity = 1;  // Jump to final state instantly
```

## Performance Tips

- **Keep animation callbacks under 16ms** — the default `rate: 16` in `Commit` is one frame at 60fps. Complex callbacks cause jank.
- **Avoid animating layout-triggering properties** (`WidthRequest`, `HeightRequest`) — use `TranslationX/Y` and `Scale` instead.
- **Use `Task.WhenAll` for parallel animations** — sequential `await` chains are slower.

```csharp
// ❌ Sequential — takes 1500ms total
await view.FadeTo(1, 500);
await view.ScaleTo(1.5, 500);
await view.RotateTo(360, 500);

// ✅ Parallel — takes 500ms total
await Task.WhenAll(
    view.FadeTo(1, 500),
    view.ScaleTo(1.5, 500),
    view.RotateTo(360, 500));
```

## Easing Selection Guide

| Goal | Easing | Why |
|------|--------|-----|
| Button feedback | `CubicOut` | Quick deceleration feels responsive |
| Page transitions | `CubicInOut` | Smooth start and end |
| Bouncing elements | `BounceOut` | Playful, attention-grabbing |
| Spring effects | `SpringOut` | Natural, elastic feel |
| Loading indicators | `Linear` | Constant speed for continuous motion |
| Entry/exit | `SinIn` / `SinOut` | Subtle, non-distracting |


---
Source attribution: davidortinau
Original project: https://github.com/davidortinau/maui-skills/blob/79bb4bfd8f671ed0dd97bdf92a36430928e8d984/plugins/maui-skills/skills/maui-animations/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 David Ortinau

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: davidortinau
Original project: https://github.com/davidortinau/maui-skills/blob/79bb4bfd8f671ed0dd97bdf92a36430928e8d984/plugins/maui-skills/skills/maui-animations/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering
Roles: Frontend Developer, Mobile Developer
Specialties: API, Frontend
Tools: .Net
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 707af932ad89dc78ac424733839a16422cad3c36c208286c44ecfd0f3654cee5