ChartAnimationController class
Manages entrance and data-update animations for one chart.
Attach to a StatefulWidget and call forward() in initState.
Listen via addListener — it calls the listener on every tick.
late final _anim = ChartAnimationController(vsync: this);
@override
void initState() {
super.initState();
_anim.forward();
_anim.addListener(() => setState(() {}));
}
// In the painter: read _anim.progress to scale bar heights etc.
Constructors
- ChartAnimationController({required TickerProvider vsync, ChartAnimationPreset preset = ChartAnimationPreset.grow})
Properties
-
animation
→ Animation<
double> -
no setter
- controller → AnimationController
-
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isCompleted → bool
-
no setter
- isDisposed → bool
-
Whether this animation controller has been disposed.
no setter
- preset → ChartAnimationPreset
-
final
- progress → double
-
Current animation progress
0..1.no setter - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- vsync → TickerProvider
-
final
Methods
-
addListener(
VoidCallback cb) → void -
dispose(
) → void -
forward(
) → Future< void> - Play the entrance animation once from the beginning.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
removeListener(
VoidCallback cb) → void -
replay(
{Duration? delay}) → Future< void> - Replay the animation (e.g., after data changes).
-
reset(
) → void -
stop(
) → void -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited