RotateEffect class
Effect that rotates the target between begin and end (via RotationTransition).
Values are specified in "turns" (360° or 2𝝅 radians), so a begin=0.25, end=2.25
would start with the child
rotated a quarter turn clockwise (90 degrees), and rotate two full turns (ending at 810 degrees).
Defaults to begin=-1.0, end=0
.
alignment lets you set the origin of the rotation (the point around which the rotation will occur). For example an alignment of Alignment.topLeft would rotate around the top left corner of the child. Defaults to Alignment.center.
Constructors
Properties
- alignment → Alignment?
-
final
- begin → double?
-
The begin value for the effect. If null, effects should use a reasonable
default value when appropriate.
finalinherited
- curve → Curve?
-
The specified easing curve for the effect. If null, will inherit the curve from the
previous effect, or use Animate.defaultCurve if this is the first effect.
finalinherited
- delay → Duration?
-
The specified delay for the effect. If null, will inherit the delay from the
previous effect, or use Duration.zero if this is the first effect.
finalinherited
- duration → Duration?
-
The specified duration for the effect. If null, will inherit the duration from the
previous effect, or use Animate.defaultDuration if this is the first effect.
finalinherited
- end → double?
-
The end value for the effect. If null, effects should use a reasonable
default value when appropriate.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- transformHitTests → bool
-
final
Methods
-
build(
BuildContext context, Widget child, AnimationController controller, EffectEntry entry) → Widget -
Builds the widgets that implement the effect on the target
child
, based on the provided AnimationController and EffectEntry.override -
buildAnimation(
AnimationController controller, EffectEntry entry) → Animation< double> -
Returns an animation based on the controller, entry, and begin/end values.
inherited
-
getBeginRatio(
AnimationController controller, EffectEntry entry) → double -
Returns a ratio corresponding to the beginning of the specified entry.
inherited
-
getEndRatio(
AnimationController controller, EffectEntry entry) → double -
Returns a ratio corresponding to the end of the specified entry.
inherited
-
getOptimizedBuilder<
U> ({required ValueListenable< U> animation, Widget? child, required TransitionBuilder builder}) → AnimatedBuilder -
Returns an optimized AnimatedBuilder that doesn't
rebuild if the value hasn't changed.
inherited
-
getToggleBuilder(
{required ValueListenable< double> animation, required Widget child, required bool toggle(), required ToggleEffectBuilder builder}) → AnimatedBuilder -
Returns an AnimatedBuilder that rebuilds when the
boolean value returned by the
toggle
function changes.inherited -
isAnimationActive(
Animation animation) → bool -
Check if the animation is currently running / active.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- defaultTransformHitTests → const bool
- defaultValue → const double
- neutralValue → const double