# Animation Samples
Sample apps that showcasing Flutter's animation features

## Goals

- Demonstrate the building blocks for animations and how they work together
- Provide samples for common patterns and use-cases

## Samples

### Basics

Building blocks and patterns

1. **AnimatedContainerDemo** Demonstrates how to use `AnimatedContainer` 
2. **PageRouteBuilderDemo** Demonstrates how to use `Tween` and `Animation` to
*build a custom page route transition.
3. **AnimationControllerDemo** Demonstrates how to use an `AnimationController`.
4. **TweenDemo** Demonstrates how to use a `Tween` with an
`AnimationController`.
5. **AnimatedBuilderDemo** Demonstrates how to use an `AnimatedBuilder` with an
`AnimationController`.
6. **CustomTweenDemo** Demonstrates how to extend `Tween`.
7. **TweenSequenceDemo** Demonstrates how to use `TweenSequence` to build a
button that changes between different colors.

### Misc

Other uses-cases and examples

- **RepeatingAnimationDemo** Demonstrates how to repeat an animation.
- **ExpandCardDemo** Demonstrates how to use `AnimatedCrossFade` to fade between
two widgets and change the size.
- **CarouselDemo** Demonstrates how to use `PageView` with a custom animation.
- **FocusImageDemo** Demonstrates how to measure the size of a widget and expand
it using a `PageRouteBuilder`.
- **PhysicsCardDragDemo** Demonstrates how to run an AnimationController with a
spring simulation.
- **CardSwipeDemo** A swipeable card that demonstrates how to use gesture
detection to drive an animation.

## Other Resources

- [Introduction to animations](https://flutter.dev/docs/development/ui/animations)
- [Animation widgets](https://flutter.dev/docs/development/ui/widgets/animation)
- [Flutter cookbook - Animations](https://flutter.dev/docs/cookbook/animation)
- [Animations tutorial](https://flutter.dev/docs/development/ui/animations/tutorial)