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Code Issues Releases Wiki Activity

clean up expand_card demo

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This commit is contained in:
John Ryan
2019-07-12 12:17:50 -07:00
parent 4e6a0f0e1b
commit d40ba0c98e
1 changed files with 17 additions and 35 deletions
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42
animations/lib/src/misc/expand_card.dart
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@@ -7,17 +7,17 @@ class ExpandCardDemo extends StatelessWidget {
return Scaffold( return Scaffold(
appBar: AppBar(), appBar: AppBar(),
body: Center( body: Center(
child: SimpleExpandableCard(), child: ExpandCard(),
), ),
); );
} }
} }
class SimpleExpandableCard extends StatefulWidget { class ExpandCard extends StatefulWidget {
_SimpleExpandableCardState createState() => _SimpleExpandableCardState(); _ExpandCardState createState() => _ExpandCardState();
} }
class _SimpleExpandableCardState extends State<SimpleExpandableCard> class _ExpandCardState extends State<ExpandCard>
with SingleTickerProviderStateMixin { with SingleTickerProviderStateMixin {
static const Duration duration = Duration(milliseconds: 300); static const Duration duration = Duration(milliseconds: 300);
bool expanded = false; bool expanded = false;
@@ -43,35 +43,17 @@ class _SimpleExpandableCardState extends State<SimpleExpandableCard>
duration: duration, duration: duration,
crossFadeState: crossFadeState:
expanded ? CrossFadeState.showSecond : CrossFadeState.showFirst, expanded ? CrossFadeState.showSecond : CrossFadeState.showFirst,
firstChild: _ImageContainer( firstChild: AnimatedContainer(
size: size, image: 'assets/wolf.jpg', duration: duration),
secondChild: _ImageContainer(
size: size, image: 'assets/cat.jpg', duration: duration),
),
),
);
}
}
class _ImageContainer extends StatelessWidget {
final double size;
final String image;
final Duration duration;
_ImageContainer({this.size, this.image, this.duration});
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: AnimatedContainer(
duration: duration, duration: duration,
width: size, width: size,
height: size, height: size,
decoration: BoxDecoration( child: Image.asset('assets/cat.jpg', fit: BoxFit.cover,),
color: Colors.transparent, ),
image: DecorationImage( secondChild: AnimatedContainer(
fit: BoxFit.cover, duration: duration,
image: AssetImage(image), width: size,
height: size,
child: Image.asset('assets/wolf.jpg', fit: BoxFit.cover,),
), ),
), ),
), ),