animate_do

Null-Safety, Dart 3, with zero external dependencies

iOS, Android, Linux, Mac, Web, Windows ready

An animation package inspired by Animate.css, built using only Flutter animations, with zero dependencies.

Getting Started

This package is simple to use. Every animation contains default values that look beautiful, but you can customize the properties to meet your needs.

Properties in almost every animated widget:

Property	Type	Description
key	Key	(Optional) Widget key reference
child	Widget	Required widget to animate
duration	Duration	Duration of the animation
delay	Duration	Delay before the animation starts
from	double	Initial or final value for more pronounced slide/fade effects
animate	boolean	Toggle from false to true to trigger animation (works with setState, Bloc, Provider, Redux, etc.)
infinite	boolean	Makes attention-seeking animations run indefinitely
spins	double	Number of rotations for applicable animations (Spin, Roulette, PerfectSpin)
manualTrigger	boolean	Enable manual animation triggering (requires controller property)
controller	Function	Exposes animation controller for advanced use cases
onFinish	Function	Callback triggered when animation completes (provides direction: forward/backward)
curve	Curve	Customizable animation curve for any animated widget

Available Animations

FadeIn Animations

• FadeIn
• FadeInDown
• FadeInDownBig
• FadeInUp
• FadeInUpBig
• FadeInLeft
• FadeInLeftBig
• FadeInRight
• FadeInRightBig

FadeOut Animations

• FadeOut
• FadeOutDown
• FadeOutDownBig
• FadeOutUp
• FadeOutUpBig
• FadeOutLeft
• FadeOutLeftBig
• FadeOutRight
• FadeOutRightBig

BounceIn Animations

• BounceInDown
• BounceInUp
• BounceInLeft
• BounceInRight

ElasticIn Animations

• ElasticIn
• ElasticInDown
• ElasticInUp
• ElasticInLeft
• ElasticInRight

SlideIn Animations

• SlideInDown
• SlideInUp
• SlideInLeft
• SlideInRight

FlipIn Animations

• FlipInX
• FlipInY

Zoom Animations

• ZoomIn
• ZoomOut

Attention Seekers

All of the following animations can be made infinite using the infinite property (type: bool)

• Bounce
• Dance
• Flash
• Pulse
• Roulette
• ShakeX
• ShakeY
• Spin
• SpinPerfect
• Swing
• HeartBeat
• Wobble
• Jello
• Tada
• RubberBand

Example: 01-Basic

home: Scaffold(
    body: Center(

        child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceAround,
        children: <Widget>[

            FadeInLeft(child: Square() ),
            FadeInUp(child: Square() ),
            FadeInDown(child: Square() ),
            FadeInRight(child: Square() ),

        ],
        ),

    ),
),

Demos

For complete examples, check the example folder inside the repository

Trigger animation manually (The easy way)

Just add the property animate to true to trigger the animation, and to false to revert the animation.

Example: 02-Basic - Now with toggle

Just toggle the animate property to animate in or out easily. Check the full code inside the example folder

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {

  bool animate = true;
  late AnimationController controller;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Material App',
      theme: ThemeData.light(useMaterial3: true),
      home: Scaffold(
        body: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [


            Row(
              mainAxisAlignment: MainAxisAlignment.spaceAround,
              children: <Widget>[

                /// The animations are just widgets
                FadeIn(animate: animate,child: const Square(),),
                FadeInUp(animate: animate,child: const Square(),),
                FadeInDown(animate: animate,child: const Square(),),
                FadeInLeft(animate: animate,child: const Square(),),
                FadeInRight(animate: animate,child: const Square(),),

              ],
            ),


          ],
        ),
      ),
    );
  }
}

Note: Square, is just a Square blue container

class Square extends StatelessWidget {
  const Square({Key? key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return Container(
      width: 50,
      height: 50,
      color: const Color(0xff67549B),
    );
  }
}

Events

There is a new property called onFinish that is called when the animation finishes. It returns a value of type AnimateDoDirection indicating the direction of the animation (forward or backward).

Example:

FadeIn(
  animate: animate,
  delay: const Duration(milliseconds: 100),
  onFinish: (direction) => print('$direction'),
  child: const Square(),
),

Manual Trigger

There is a way to get the AnimationController used inside the animation, which lets you control the animation by restarting it, changing its duration, repeating it, etc.

However, with all the new features added, this is not needed for the majority of users, but if you need it, here is how to do it.

Important: If you decide to go for the manual trigger, you have to control the animation entirely, which means running controller.forward() and controller.reverse() manually.

Usually it's easier now to use the animate property and just toggle it to true or false to trigger the animation.

Example

class FadeOutDownBig extends StatelessWidget/StatefulWidget {

AnimationController animateController;
...
...
...

child: FadeInUp(

    // (optional) if true, will not fire the animation on load
    manualTrigger: true,

    //(optional, but mandatory if you use manualTrigger:true) This callback exposes the AnimationController used for the selected animation. Then you can call animationController.forward() to trigger the animation wherever you like manually.
    controller: ( controller ) => animateController = controller,

    child: YourWidget(),

More examples

Check the repository for more examples, or the example folder inside the package.

Don't forget to like the package if you find it useful, and if you have any suggestion, please let me know.