_ChildEntry _newEntry(
Widget child,
AnimatedSwitcherTransitionBuilder builder,
AnimationController controller,
Animation <float> animation
)
{
_ChildEntry entry = new _ChildEntry(
widgetChild: child,
transition: KeyedSubtree.wrap(builder(child, animation), this._childNumber),
animation: animation,
controller: controller
);
animation.addStatusListener((AnimationStatus status) => {
if (status == AnimationStatus.dismissed)
{
this.setState(() => {
D.assert(this.mounted);
D.assert(this._outgoingEntries.Contains(entry));
this._outgoingEntries.Remove(entry);
this._markChildWidgetCacheAsDirty();
});
controller.dispose();
}
});
return(entry);
}
public AnimatedSwitcher(
Key key = null,
Widget child = null,
TimeSpan?duration = null,
Curve switchInCurve = null,
Curve switchOutCurve = null,
AnimatedSwitcherTransitionBuilder transitionBuilder = null,
AnimatedSwitcherLayoutBuilder layoutBuilder = null
) : base(key: key)
{
D.assert(duration != null);
this.switchInCurve = switchInCurve ?? Curves.linear;
this.switchOutCurve = switchOutCurve ?? Curves.linear;
this.transitionBuilder = transitionBuilder ?? defaultTransitionBuilder;
this.layoutBuilder = layoutBuilder ?? defaultLayoutBuilder;
this.child = child;
this.duration = duration;
}
