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add needed method onLongPress() #7

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add needed method onLongPress() #7

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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ and the Flutter guide for

- Truly simple and efficient.
- Customizable bouncing animation using `curve`, `scaleFactor` and `duration`.
- Options to control `onTap`, `onTapUp`, `onTapDown` and `onTapCancel`.
- Options to control `onTap`, `onTapUp`, `onTapDown`, `onTapCancel` and `onLongPress`.
- Enable and disable `onTap` option.
- Not sticky when scrolling.
- Does not trigger multiple `onTap` events when tapped on multiple `Bounceable` widget simultaneously.
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14 changes: 12 additions & 2 deletions lib/src/bounceable.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ class Bounceable extends StatefulWidget {
final void Function(TapUpDetails)? onTapUp;
final void Function(TapDownDetails)? onTapDown;
final VoidCallback? onTapCancel;
final VoidCallback? onLongPress;

/// The reverse duration of the scaling animation when `onTapUp`.
final Duration? duration;
Expand Down Expand Up @@ -34,6 +35,7 @@ class Bounceable extends StatefulWidget {
this.onTapUp,
this.onTapDown,
this.onTapCancel,
this.onLongPress,
this.duration = const Duration(milliseconds: 200),
this.reverseDuration = const Duration(milliseconds: 200),
this.curve = Curves.decelerate,
Expand All @@ -50,8 +52,7 @@ class Bounceable extends StatefulWidget {
_BounceableState createState() => _BounceableState();
}

class _BounceableState extends State<Bounceable>
with SingleTickerProviderStateMixin {
class _BounceableState extends State<Bounceable> with SingleTickerProviderStateMixin {
late final AnimationController _controller = AnimationController(
vsync: this,
duration: widget.duration,
Expand Down Expand Up @@ -86,6 +87,14 @@ class _BounceableState extends State<Bounceable>
});
}

void _onLongPress() {
if (widget.onLongPress != null) widget.onLongPress!();

_controller.reverse().then((_) {
_controller.forward();
});
}

void _onTapUp(TapUpDetails details) {
if (widget.onTapUp != null) widget.onTapUp!(details);
_controller.forward();
Expand All @@ -111,6 +120,7 @@ class _BounceableState extends State<Bounceable>
onTapDown: widget.onTap != null ? _onTapDown : null,
onTapUp: widget.onTap != null ? _onTapUp : null,
onTap: widget.onTap != null ? _onTap : null,
onLongPress: widget.onLongPress != null ? _onLongPress : null,
child: ScaleTransition(
scale: _animation,
child: widget.child,
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