139 lines
4.6 KiB
Dart
139 lines
4.6 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:nearledaily/constants/color_constants.dart';
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class SliderCheckoutButton extends StatefulWidget {
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final Future<void> Function() onConfirmed;
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const SliderCheckoutButton({super.key, required this.onConfirmed});
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@override
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State<SliderCheckoutButton> createState() => _SliderCheckoutButtonState();
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}
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class _SliderCheckoutButtonState extends State<SliderCheckoutButton> {
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double _dragPosition = 0;
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bool _isLoading = false;
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final double _thumbSize = 52;
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final double _trackHeight = 56;
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(builder: (context, constraints) {
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final trackWidth = constraints.maxWidth;
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final maxDrag = trackWidth - _thumbSize - 8;
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final progress = _dragPosition / maxDrag;
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return Container(
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height: _trackHeight,
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(14),
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gradient: LinearGradient(
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colors: [
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ColorConstants.primaryColor,
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ColorConstants.primaryColor,
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],
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begin: Alignment.topLeft,
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end: Alignment.bottomRight,
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),
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),
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child: Stack(
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alignment: Alignment.centerLeft,
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children: [
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// ── CENTER LABEL ──────────────────────────────
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Center(
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child: _isLoading
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? Row(
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mainAxisSize: MainAxisSize.min,
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children: const [
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SizedBox(
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width: 18,
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height: 18,
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child: CircularProgressIndicator(
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color: Colors.white,
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strokeWidth: 2,
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),
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),
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SizedBox(width: 10),
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Text(
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'Please wait...',
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style: TextStyle(
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color: Colors.white,
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fontSize: 15,
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fontWeight: FontWeight.w600,
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letterSpacing: 0.4,
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),
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),
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],
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)
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: Opacity(
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opacity: (1 - progress * 2).clamp(0.0, 1.0),
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child: const Text(
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'Slide to Checkout',
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style: TextStyle(
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color: Colors.white,
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fontSize: 15,
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fontWeight: FontWeight.w600,
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letterSpacing: 0.5,
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),
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),
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),
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),
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// ── THUMB (hidden while loading) ──────────────
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if (!_isLoading)
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Positioned(
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left: 4 + _dragPosition,
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child: GestureDetector(
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onHorizontalDragUpdate: (details) {
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setState(() {
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_dragPosition =
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(_dragPosition + details.delta.dx).clamp(0.0, maxDrag);
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});
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},
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onHorizontalDragEnd: (_) async {
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if (_dragPosition >= maxDrag * 0.85) {
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setState(() {
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_dragPosition = 0;
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_isLoading = true;
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});
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try {
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await widget.onConfirmed();
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} finally {
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if (mounted) {
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setState(() => _isLoading = false);
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}
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}
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} else {
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setState(() => _dragPosition = 0);
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}
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},
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child: Container(
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width: _thumbSize,
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height: _thumbSize,
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(12),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.15),
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blurRadius: 6,
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offset: const Offset(0, 3),
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),
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],
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),
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child: Icon(
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Icons.arrow_forward_ios_rounded,
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color: Theme.of(context).primaryColor,
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size: 22,
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),
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),
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),
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),
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],
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),
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);
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});
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}
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} |