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f_card_swiper
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feat(scale): allow changing the default scale of the back card

This commit is contained in:
Ricardo Dalarme 2023-01-27 13:47:49 -03:00
parent ed0206f06e
commit da53a10b88
2 changed files with 16 additions and 6 deletions
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1
README.md
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@ -101,6 +101,7 @@ class Example extends StatelessWidget {
| duration | 200 milliseconds | The duration that every animation should last | false
| maxAngle | 30 | Maximum angle the card reaches while swiping | false
| threshold | 50 | Threshold from which the card is swiped away | false
| scale | 0.9 | Scale of the card that is behind the front card | false
| isDisabled | false | Set to ```true``` if swiping should be disabled, has no impact when triggered from the outside | false
| onTapDisabled | - | Function that get triggered when the swiper is disabled | false
| onSwipe | - | Called with the new index and detected swipe direction when the user swiped | false

21
lib/src/card_swiper.dart
View File

@ -24,6 +24,9 @@ class CardSwiper extends StatefulWidget {
/// threshold from which the card is swiped away
final int threshold;
/// scale of the card that is behind the front card
final double scale;
/// set to true if swiping should be disabled, exception: triggered from the outside
final bool isDisabled;
@ -47,6 +50,7 @@ class CardSwiper extends StatefulWidget {
this.duration = const Duration(milliseconds: 200),
this.maxAngle = 30,
this.threshold = 50,
this.scale = 0.9,
this.isDisabled = false,
this.onTapDisabled,
this.onSwipe,
@ -64,6 +68,10 @@ class CardSwiper extends StatefulWidget {
direction != CardSwiperDirection.none,
'direction must not be none',
),
assert(
scale >= 0 && scale <= 1,
'scale must be between 0 and 1',
),
super(key: key);
@override
@ -76,7 +84,7 @@ class _CardSwiperState extends State<CardSwiper>
double _top = 0;
double _total = 0;
double _angle = 0;
double _scale = 0.9;
late double _scale = widget.scale;
double _difference = 40;
int _currentIndex = 0;
@ -257,7 +265,7 @@ class _CardSwiperState extends State<CardSwiper>
_top = 0;
_total = 0;
_angle = 0;
_scale = 0.9;
_scale = widget.scale;
_difference = 40;
_swipeType = SwipeType.none;
});
@ -272,9 +280,10 @@ class _CardSwiperState extends State<CardSwiper>
}
void _calculateScale() {
if (_scale <= 1.0 && _scale >= 0.9) {
_scale =
(_total > 0) ? 0.9 + (_total / 5000) : 0.9 + -1 * (_total / 5000);
if (_scale <= 1.0 && _scale >= widget.scale) {
_scale = (_total > 0)
? widget.scale + (_total / 5000)
: widget.scale + -1 * (_total / 5000);
}
}
@ -394,7 +403,7 @@ class _CardSwiperState extends State<CardSwiper>
).animate(_animationController);
_scaleAnimation = Tween<double>(
begin: _scale,
end: 0.9,
end: widget.scale,
).animate(_animationController);
_differenceAnimation = Tween<double>(
begin: _difference,