95 lines
2.4 KiB
Dart
95 lines
2.4 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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enum SeekDirection { forward, backward }
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class SeekIndicator extends StatefulWidget {
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final SeekDirection direction;
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final void Function(Duration) onSubmitted;
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const SeekIndicator({
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Key? key,
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required this.direction,
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required this.onSubmitted,
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}) : super(key: key);
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@override
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State<SeekIndicator> createState() => _SeekIndicatorState();
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}
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class _SeekIndicatorState extends State<SeekIndicator> {
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Timer? timer;
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@override
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void initState() {
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super.initState();
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_startTimer();
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}
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void _startTimer() {
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timer?.cancel();
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timer = Timer(const Duration(milliseconds: 400), () {
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widget.onSubmitted.call(const Duration(seconds: 10));
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timer = null;
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});
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}
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@override
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void dispose() {
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timer?.cancel();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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decoration: BoxDecoration(
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gradient: LinearGradient(
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colors: widget.direction == SeekDirection.forward
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? [
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const Color(0x00767676),
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const Color(0x88767676),
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]
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: [
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const Color(0x88767676),
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const Color(0x00767676),
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],
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begin: Alignment.centerLeft,
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end: Alignment.centerRight,
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),
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),
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child: Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Icon(
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widget.direction == SeekDirection.forward
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? Icons.fast_forward
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: Icons.fast_rewind,
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size: 24.0,
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color: const Color(0xFFFFFFFF),
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),
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const SizedBox(height: 8.0),
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Text(
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widget.direction == SeekDirection.forward ? '快进10秒' : '快退10秒',
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style: const TextStyle(
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fontSize: 12.0,
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color: Color(0xFFFFFFFF),
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shadows: [
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Shadow(
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color: Color(0xFF000000),
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offset: Offset(0, 2),
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blurRadius: 4,
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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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}
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