Animation Kit #

A Flutter package providing a collection of utilities and widgets for creating advanced animations with ease.

Features #

• Customizable animation builders.
• Repeated animations with various modes (e.g., repeat, reverse, ping-pong).
• Implicit animations for smooth transitions.
• Crossfade transitions between widgets.
• Interval-based animation curves.
• Utility functions for interpolating values like colors, offsets, and sizes.

Installation #

Add the following to your pubspec.yaml:

dependencies:
  animation_kit: ^1.0.0

Then run:

flutter pub get

Usage #

Repeated Animation #

import 'package:animation_kit/animation_kit.dart';

RepeatedAnimationBuilder<double>(
  start: 0.0,
  end: 1.0,
  duration: Duration(seconds: 2),
  mode: RepeatMode.pingPong,
  builder: (context, value, child) {
    return Opacity(
      opacity: value,
      child: child,
    );
  },
  child: Text('Ping-Pong Animation'),
);

Crossfade Transition #

import 'package:animation_kit/animation_kit.dart';

CrossFadedTransition(
  child: Text('New Widget'),
  duration: Duration(milliseconds: 500),
);

Custom Curve #

import 'package:animation_kit/animation_kit.dart';

AnimationController controller = AnimationController(
  duration: const Duration(seconds: 2),
  vsync: this,
);

Animation<double> animation = CurvedAnimation(
  parent: controller,
  curve: IntervalDuration(
    start: Duration(milliseconds: 500),
    end: Duration(seconds: 1),
    duration: Duration(seconds: 2),
  ),
);

Implicit Animation #

import 'package:animation_kit/animation_kit.dart';

AnimatedValueBuilder<double>(
  value: 1.0,
  duration: Duration(seconds: 1),
  builder: (context, value, child) {
    return Transform.scale(
      scale: value,
      child: child,
    );
  },
  child: Icon(Icons.star, size: 50),
);

Contributing #

Contributions are welcome! Please follow these steps:

1. Fork the repository.
2. Create a new branch for your feature or bugfix.
3. Commit your changes with clear messages.
4. Submit a pull request.

License #

This project is licensed under the MIT License. See the LICENSE file for details.