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refactor(code): move the CardsAnimation to a specific file

This commit is contained in:
Ricardo Dalarme 2023-01-13 21:58:56 -03:00
parent 037acfda1c
commit 0c556f393e
2 changed files with 82 additions and 78 deletions
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81
lib/src/cards_animation.dart Normal file
View File

@ -0,0 +1,81 @@
import 'package:flutter/widgets.dart';
import 'swipeable_cards_stack.dart';
class CardsAnimation {
static Animation<Alignment> backCardAlignmentAnim(
AnimationController parent,
) {
return AlignmentTween(begin: cardsAlign[0], end: cardsAlign[1]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.4, 0.7, curve: Curves.easeIn),
),
);
}
static Animation<Size?> backCardSizeAnim(AnimationController parent) {
return SizeTween(begin: cardsSize[2], end: cardsSize[1]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.4, 0.7, curve: Curves.easeIn),
),
);
}
static Animation<Alignment> middleCardAlignmentAnim(
AnimationController parent,
) {
return AlignmentTween(begin: cardsAlign[1], end: cardsAlign[2]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.2, 0.5, curve: Curves.easeIn),
),
);
}
static Animation<Size?> middleCardSizeAnim(AnimationController parent) {
return SizeTween(begin: cardsSize[1], end: cardsSize[0]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.2, 0.5, curve: Curves.easeIn),
),
);
}
static Animation<Alignment> frontCardDisappearAlignmentAnim(
AnimationController parent,
Alignment beginAlign,
) {
if (beginAlign.x == -0.001 ||
beginAlign.x == 0.001 ||
beginAlign.x > 3.0 ||
beginAlign.x < -3.0) {
return AlignmentTween(
begin: beginAlign,
end: Alignment(
beginAlign.x > 0 ? beginAlign.x + 30.0 : beginAlign.x - 30.0,
0.0,
), // Has swiped to the left or right?
).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.0, 0.5, curve: Curves.easeIn),
),
);
} else {
return AlignmentTween(
begin: beginAlign,
end: Alignment(
0.0,
beginAlign.y > 0 ? beginAlign.y + 30.0 : beginAlign.y - 30.0,
), // Has swiped to the top or bottom?
).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.0, 0.5, curve: Curves.easeIn),
),
);
}
}
}

79
lib/src/swipeable_cards_stack.dart
View File

@ -3,6 +3,7 @@ library swipeable_cards_stack;
import 'dart:math';
import 'package:flutter/material.dart';
import 'package:swipeable_cards_stack/src/cards_animation.dart';
import 'package:swipeable_cards_stack/src/swipeable_cards_stack_controller.dart';
const List<Alignment> cardsAlign = [
@ -290,81 +291,3 @@ class _SwipeableCardsStackState extends State<SwipeableCardsStack>
..forward();
}
}
class CardsAnimation {
static Animation<Alignment> backCardAlignmentAnim(
AnimationController parent,
) {
return AlignmentTween(begin: cardsAlign[0], end: cardsAlign[1]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.4, 0.7, curve: Curves.easeIn),
),
);
}
static Animation<Size?> backCardSizeAnim(AnimationController parent) {
return SizeTween(begin: cardsSize[2], end: cardsSize[1]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.4, 0.7, curve: Curves.easeIn),
),
);
}
static Animation<Alignment> middleCardAlignmentAnim(
AnimationController parent,
) {
return AlignmentTween(begin: cardsAlign[1], end: cardsAlign[2]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.2, 0.5, curve: Curves.easeIn),
),
);
}
static Animation<Size?> middleCardSizeAnim(AnimationController parent) {
return SizeTween(begin: cardsSize[1], end: cardsSize[0]).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.2, 0.5, curve: Curves.easeIn),
),
);
}
static Animation<Alignment> frontCardDisappearAlignmentAnim(
AnimationController parent,
Alignment beginAlign,
) {
if (beginAlign.x == -0.001 ||
beginAlign.x == 0.001 ||
beginAlign.x > 3.0 ||
beginAlign.x < -3.0) {
return AlignmentTween(
begin: beginAlign,
end: Alignment(
beginAlign.x > 0 ? beginAlign.x + 30.0 : beginAlign.x - 30.0,
0.0,
), // Has swiped to the left or right?
).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.0, 0.5, curve: Curves.easeIn),
),
);
} else {
return AlignmentTween(
begin: beginAlign,
end: Alignment(
0.0,
beginAlign.y > 0 ? beginAlign.y + 30.0 : beginAlign.y - 30.0,
), // Has swiped to the top or bottom?
).animate(
CurvedAnimation(
parent: parent,
curve: const Interval(0.0, 0.5, curve: Curves.easeIn),
),
);
}
}
}