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f_card_swiper
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feat(stack): make a infinite stack

This commit is contained in:
Ricardo Dalarme 2023-01-15 22:20:49 -03:00
parent ead2b3f8b5
commit fb292ee1ec
1 changed files with 36 additions and 34 deletions
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70
lib/card_swiper.dart
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@ -80,6 +80,8 @@ class _CardSwiperState extends State<CardSwiper>
double _scale = 0.9; double _scale = 0.9;
double _difference = 40; double _difference = 40;
int _currentIndex = 0;
int _swipeTyp = 0; // 1 = swipe, 2 = unswipe, 3 = goBack int _swipeTyp = 0; // 1 = swipe, 2 = unswipe, 3 = goBack
bool _tapOnTop = false; //position of starting drag point on card bool _tapOnTop = false; //position of starting drag point on card
@ -102,6 +104,9 @@ class _CardSwiperState extends State<CardSwiper>
List<AppinioUnswipeCard?> _lastCards = []; List<AppinioUnswipeCard?> _lastCards = [];
CardSwiperDirection detectedDirection = CardSwiperDirection.none; CardSwiperDirection detectedDirection = CardSwiperDirection.none;
bool get _isLastCard => _currentIndex == widget.cards!.length - 1;
int get _nextCardIndex => _isLastCard ? 0 : _currentIndex + 1;
@override @override
void initState() { void initState() {
super.initState(); super.initState();
@ -226,10 +231,15 @@ class _CardSwiperState extends State<CardSwiper>
_swipedDirectionVertical = 0; _swipedDirectionVertical = 0;
_vertical = false; _vertical = false;
_horizontal = false; _horizontal = false;
widget.cards!.removeLast();
widget.onSwipe(widget.cards!.length, detectedDirection); widget.onSwipe(_currentIndex, detectedDirection);
if (widget.cards!.isEmpty) widget.onEnd();
if (_isLastCard) {
widget.onEnd();
_currentIndex = 0;
} else {
_currentIndex++;
}
} else if (_swipeTyp == 2) { } else if (_swipeTyp == 2) {
if (widget.unlimitedUnswipe) { if (widget.unlimitedUnswipe) {
_lastCards.removeLast(); _lastCards.removeLast();
@ -269,16 +279,8 @@ class _CardSwiperState extends State<CardSwiper>
clipBehavior: Clip.none, clipBehavior: Clip.none,
fit: StackFit.expand, fit: StackFit.expand,
children: [ children: [
...widget.cards! _backItem(constraints, _nextCardIndex),
.asMap() _frontItem(constraints, _currentIndex)
.map((index, _) {
return MapEntry(
index,
_item(constraints, index),
);
})
.values
.toList(),
]); ]);
}, },
), ),
@ -287,27 +289,7 @@ class _CardSwiperState extends State<CardSwiper>
); );
} }
Widget _item(BoxConstraints constraints, int index) { Widget _frontItem(BoxConstraints constraints, int index) {
if (index != widget.cards!.length - 1) {
return Visibility(
visible: widget.cards!.length - index <= 2,
child: Positioned(
top: _difference,
left: 0,
child: Container(
color: Colors.transparent,
child: Transform.scale(
scale: _scale,
child: Container(
constraints: constraints,
child: widget.cards![index],
),
),
),
),
);
}
return Positioned( return Positioned(
left: _left, left: _left,
top: _top, top: _top,
@ -355,6 +337,26 @@ class _CardSwiperState extends State<CardSwiper>
); );
} }
Widget _backItem(BoxConstraints constraints, int index) {
return Visibility(
visible: widget.cards!.length - index <= 2,
child: Positioned(
top: _difference,
left: 0,
child: Container(
color: Colors.transparent,
child: Transform.scale(
scale: _scale,
child: Container(
constraints: constraints,
child: widget.cards![index],
),
),
),
),
);
}
void _calculateAngle() { void _calculateAngle() {
if (_angle <= _maxAngle && _angle >= -_maxAngle) { if (_angle <= _maxAngle && _angle >= -_maxAngle) {
(_tapOnTop == true) (_tapOnTop == true)