185 lines
6.8 KiB
Dart
185 lines
6.8 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:provider/provider.dart';
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import '../home/home.dart';
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import '../state/setting_state.dart';
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import '../util/extension_helper.dart';
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import '../util/pageroute.dart';
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import 'firstpage.dart';
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import 'fourthpage.dart';
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import 'secondpage.dart';
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import 'thirdpage.dart';
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enum Goto { home, settings }
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class SlideIntro extends StatefulWidget {
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final Goto? goto;
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SlideIntro({this.goto, Key? key}) : super(key: key);
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@override
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_SlideIntroState createState() => _SlideIntroState();
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}
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class _SlideIntroState extends State<SlideIntro> {
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//final List<BoxShadow> _customShadow = [
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// BoxShadow(blurRadius: 2, offset: Offset(-2, -2), color: Colors.white54),
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// BoxShadow(
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// blurRadius: 8,
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// offset: Offset(2, 2),
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// color: Colors.grey[600].withOpacity(0.4))
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//];
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PageController? _controller;
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double? _position;
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@override
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void initState() {
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super.initState();
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_position = 0;
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_controller = PageController()
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..addListener(() {
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setState(() {
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_position = _controller!.page;
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});
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});
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}
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@override
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void dispose() {
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_controller!.dispose();
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super.dispose();
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}
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Widget _indicatorWidget(int index) {
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final distance = (_position! - index).abs();
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final size = distance > 1 ? 10.0 : 10 * (2 - distance);
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return Center(
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child: Container(
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alignment: Alignment.center,
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child: distance < 0.2
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? Text(
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(index + 1).toString(),
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style: TextStyle(color: Color.fromRGBO(35, 204, 198, 1)),
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)
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: Center(),
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height: size,
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width: size,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white,
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),
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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return AnnotatedRegion<SystemUiOverlayStyle>(
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value: SystemUiOverlayStyle(
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statusBarBrightness: Brightness.light,
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systemNavigationBarIconBrightness: Brightness.dark),
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child: Scaffold(
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backgroundColor: Colors.grey[100],
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body: Container(
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child: Stack(
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children: <Widget>[
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PageView(
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physics: const PageScrollPhysics(),
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controller: _controller,
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scrollDirection: Axis.horizontal,
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children: <Widget>[
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FirstPage(),
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SecondPage(),
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ThirdPage(),
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FourthPage(),
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],
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),
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Positioned(
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bottom: 0,
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left: 0,
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child: Container(
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color: Colors.grey[100]!.withOpacity(0.5),
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width: context.width,
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padding:
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EdgeInsets.only(left: 40, right: 20, bottom: 30, top: 20),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: <Widget>[
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SizedBox(
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width: context.width / 3,
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.center,
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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children: <Widget>[
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_indicatorWidget(0),
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_indicatorWidget(1),
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_indicatorWidget(2),
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_indicatorWidget(3)
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],
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),
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),
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Spacer(),
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Container(
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alignment: Alignment.center,
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height: 40,
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width: 80,
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decoration: BoxDecoration(
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border: Border.all(width: 1, color: Colors.white),
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borderRadius: BorderRadius.circular(20),
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color: Colors.white,
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//boxShadow: _customShadow,
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),
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child: Material(
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color: Colors.transparent,
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child: _position! < 2.5
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? InkWell(
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borderRadius:
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BorderRadius.all(Radius.circular(20)),
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onTap: () => _controller!.animateToPage(
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_position!.toInt() + 1,
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duration: Duration(milliseconds: 200),
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curve: Curves.linear),
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child: SizedBox(
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height: 40,
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width: 80,
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child: Center(
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child: Text(context.s.next,
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style: TextStyle(
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color: Colors.black,
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fontWeight:
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FontWeight.bold)))))
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: InkWell(
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borderRadius: BorderRadius.circular(20),
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onTap: () {
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if (widget.goto == Goto.home) {
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Navigator.push(context,
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SlideLeftRoute(page: Home()));
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Provider.of<SettingState>(context,
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listen: false)
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.saveShowIntro(1);
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} else if (widget.goto == Goto.settings) {
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Navigator.pop(context);
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}
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},
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child: SizedBox(
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height: 40,
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width: 80,
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child: Center(
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child: Text(context.s.done,
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style: TextStyle(
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color: Colors.black,
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fontWeight:
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FontWeight.bold))))),
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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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);
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}
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}
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