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AnimatedBuilder and AnimatedWidget.
(also published as a companion article.)
for a deeper understanding of just how animations work in flutter, watch
animation deep dive.
(also published as a companion article.)
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codelabs, tutorials, and articles
the following resources are a good place to start learning
the flutter animation framework. each of these documents
shows how to write animation code.
implicit animations codelab
covers how to use implicit animations
using step-by-step instructions and interactive examples.
animations tutorial
explains the fundamental classes in the flutter animation package
(controllers, animatable, curves, listeners, builders),
as it guides you through a progression of tween animations using
different aspects of the animation APIs. this tutorial shows
how to create your own custom explicit animations.
zero to one with flutter, part 1 and part 2
medium articles showing how to create an animated chart using tweening.
write your first flutter app on the web
codelab demonstrating how to create a form
that uses animation to show the user’s progress
as they fill in the fields.
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animation types
generally, animations are either tween- or physics-based.
the following sections explain what these terms mean,
and point you to resources where you can learn more.
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tween animation
short for in-betweening. in a tween animation, the beginning
and ending points are defined, as well as a timeline, and a curve
that defines the timing and speed of the transition.
the framework calculates how to transition from the beginning point
to the end point.
the documents listed above, such as the
animations tutorial, are not specifically
about tweening, but they use tweens in their examples.
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physics-based animation
in physics-based animation, motion is modeled to resemble real-world
behavior. when you toss a ball, for example, where and when it lands
depends on how fast it was tossed and how far it was from the ground.
similarly, dropping a ball attached to a spring falls
(and bounces) differently than dropping a ball attached to a string.
animate a widget using a physics simulation
a recipe in the animations section of the flutter cookbook.
also see the API documentation for
AnimationController.animateWith and
SpringSimulation.
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pre-canned animations
if you are using material widgets, you might check
out the animations package available on pub.dev.
this package contains pre-built animations for
the following commonly used patterns:
container transforms, shared axis transitions,
fade through transitions, and fade transitions.
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common animation patterns
most UX or motion designers find that certain
animation patterns are used repeatedly when designing a UI.
this section lists some of the commonly
used animation patterns, and tells you where to learn more.
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animated list or grid
this pattern involves animating the addition or removal of
elements from a list or grid.
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shared element transition
in this pattern, the user selects an element—often an
image—from the page, and the UI animates the selected element
to a new page with more detail. in flutter, you can easily implement
shared element transitions between routes (pages)
using the hero widget.
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staggered animation
animations that are broken into smaller motions,
where some of the motion is delayed.
the smaller animations might be sequential,
or might partially or completely overlap.
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other resources
learn more about flutter animations at the following links:
animation samples from the sample app catalog.
animation recipes from the flutter cookbook.
animation videos from the flutter YouTube channel.
animations: overview