27 lines
763 B
Dart
27 lines
763 B
Dart
import 'package:flutter/widgets.dart';
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class ScrollControllerAction extends CallbackAction<ScrollIntent> {
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ScrollControllerAction({
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required ScrollController scrollController,
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}) : super(onInvoke: (intent) => _onScrollIntent(intent, scrollController));
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static void _onScrollIntent(
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ScrollIntent intent,
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ScrollController scrollController,
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) {
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late int factor;
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switch (intent.direction) {
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case AxisDirection.up:
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case AxisDirection.left:
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factor = -1;
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case AxisDirection.down:
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case AxisDirection.right:
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factor = 1;
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}
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scrollController.animateTo(
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scrollController.offset + factor * 150,
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duration: const Duration(milliseconds: 500),
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curve: Curves.easeOutCubic,
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);
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}
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}
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