public override Widget build(BuildContext context)
{
if (maintainSize)
{
Widget result = sliver;
if (!maintainInteractivity)
{
result = new SliverIgnorePointer(
sliver: sliver,
ignoring: !visible
);
}
return(new SliverOpacity(
opacity: visible ? 1.0f : 0.0f,
sliver: result
));
}
D.assert(!maintainInteractivity);
D.assert(!maintainSize);
if (maintainState)
{
Widget result = sliver;
if (!maintainAnimation)
{
result = new TickerMode(child: sliver, enabled: visible);
}
return(new SliverOffstage(
sliver: result,
offstage: !visible
));
}
D.assert(!maintainAnimation);
D.assert(!maintainState);
return(visible ? sliver : replacementSliver);
}
public override Widget build(BuildContext context)
{
return(new _EffectiveTickerMode(
enabled: enabled && TickerMode.of(context),
child: child
));
}
public override void didChangeDependencies()
{
if (this._ticker != null) {
this._ticker.muted = !TickerMode.of(this.context);
}
base.didChangeDependencies();
}
public override void didChangeDependencies()
{
bool muted = !TickerMode.of(this.context);
if (this._tickers != null) {
foreach (Ticker ticker in this._tickers) {
ticker.muted = muted;
}
}
base.didChangeDependencies();
}
public override void didChangeDependencies()
{
_updateInvertColors();
_resolveImage();
if (TickerMode.of(context: context))
{
_listenToStream();
}
else
{
_stopListeningToStream();
}
base.didChangeDependencies();
}
public override void didChangeDependencies()
{
this._invertColors = false;
this._resolveImage();
if (TickerMode.of(this.context))
{
this._listenToStream();
}
else
{
this._stopListeningToStream();
}
base.didChangeDependencies();
}
public override Widget build(BuildContext context)
{
if (maintainSize)
{
Widget result = child;
if (!maintainInteractivity)
{
result = new IgnorePointer(
child: child,
ignoring: !visible
//todo : ignoringSemantics: !visible && !maintainSemantics,
);
}
return(new Opacity(
opacity: visible ? 1.0f : 0.0f,
//alwaysIncludeSemantics: maintainSemantics,
child: result
));
}
D.assert(!maintainInteractivity);
D.assert(!maintainSemantics);
D.assert(!maintainSize);
if (maintainState)
{
Widget result = child;
if (!maintainAnimation)
{
result = new TickerMode(child: child, enabled: visible);
}
return(new Offstage(
child: result,
offstage: !visible
));
}
D.assert(!maintainAnimation);
D.assert(!maintainState);
return(visible ? child : replacement);
}
public override Widget build(BuildContext context)
{
if (this.maintainSize)
{
Widget result = this.child;
if (!this.maintainInteractivity)
{
result = new IgnorePointer(
child: this.child,
ignoring: !this.visible
);
}
return(new Opacity(
opacity: this.visible ? 1.0f : 0.0f,
child: result
));
}
D.assert(!this.maintainInteractivity);
D.assert(!this.maintainSize);
if (this.maintainState)
{
Widget result = this.child;
if (!this.maintainAnimation)
{
result = new TickerMode(child: this.child, enabled: this.visible);
}
return(new Offstage(
child: result,
offstage: !this.visible
));
}
D.assert(!this.maintainAnimation);
D.assert(!this.maintainState);
return(this.visible ? this.child : this.replacement);
}
public override Widget build(BuildContext context)
{
Key kFirstChildKey = new ValueKey <CrossFadeState>(CrossFadeState.showFirst);
Key kSecondChildKey = new ValueKey <CrossFadeState>(CrossFadeState.showSecond);
bool transitioningForwards = this._controller.status == AnimationStatus.completed ||
this._controller.status == AnimationStatus.forward;
Key topKey;
Widget topChild;
Animation <float> topAnimation;
Key bottomKey;
Widget bottomChild;
Animation <float> bottomAnimation;
if (transitioningForwards)
{
topKey = kSecondChildKey;
topChild = this.widget.secondChild;
topAnimation = this._secondAnimation;
bottomKey = kFirstChildKey;
bottomChild = this.widget.firstChild;
bottomAnimation = this._firstAnimation;
}
else
{
topKey = kFirstChildKey;
topChild = this.widget.firstChild;
topAnimation = this._firstAnimation;
bottomKey = kSecondChildKey;
bottomChild = this.widget.secondChild;
bottomAnimation = this._secondAnimation;
}
bottomChild = new TickerMode(
key: bottomKey,
enabled: this._isTransitioning,
child: new FadeTransition(
opacity: bottomAnimation,
child: bottomChild
)
);
topChild = new TickerMode(
key: topKey,
enabled: true,
child: new FadeTransition(
opacity: topAnimation,
child: topChild
)
);
return(new ClipRect(
child: new AnimatedSize(
alignment: this.widget.alignment,
duration: this.widget.duration,
curve: this.widget.sizeCurve,
vsync: this,
child: this.widget.layoutBuilder(topChild, topKey, bottomChild, bottomKey)
)
));
}
