116 lines
3.3 KiB
Dart
116 lines
3.3 KiB
Dart
import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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class GuessPage extends StatefulWidget {
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const GuessPage({super.key, required this.title});
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final String title;
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@override
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State<GuessPage> createState() => _GuessPageState();
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}
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class _GuessPageState extends State<GuessPage> {
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int _value = 0;
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Random _random = Random();
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void _generateRandomValue() {
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setState(() {
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_value = _random.nextInt(100);
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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 Scaffold(
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appBar:
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AppBar(
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systemOverlayStyle: SystemUiOverlayStyle(
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statusBarIconBrightness: Brightness.dark,
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statusBarColor: Colors.transparent
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),
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// leadingWidth: 54,
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titleSpacing: 0,
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leading: Icon(Icons.menu, color: Colors.black,),
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actions: [
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IconButton(
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splashRadius: 20,
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onPressed: (){}, icon: Icon(
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Icons.run_circle_outlined,
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color: Colors.blue,
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))
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],
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backgroundColor: Colors.white,
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elevation: 0,
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title:
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TextField(
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keyboardType: TextInputType.number,
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decoration: InputDecoration(
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filled: true,
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fillColor: Color(0xffF3F6F9),
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constraints: BoxConstraints(maxHeight: 35),
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border: UnderlineInputBorder(
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borderSide: BorderSide.none,
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borderRadius: BorderRadius.all(Radius.circular(6)),
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),
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hintText: "输入 0~99 数字",
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hintStyle: TextStyle(fontSize: 14)),
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),
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),
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body: Stack(
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children: [
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Column(
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children: [
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Expanded(
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child: Container(
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alignment: Alignment.center,
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color: Colors.redAccent,
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child: Text(
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'大了',
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style: TextStyle(
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fontSize: 54,
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color: Colors.white,
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fontWeight: FontWeight.bold),
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),
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)),
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// Spacer(),
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Expanded(
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child: Container(
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alignment: Alignment.center,
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color: Colors.blueAccent,
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child: Text(
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'小了',
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style: TextStyle(
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fontSize: 54,
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color: Colors.white,
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fontWeight: FontWeight.bold),
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),
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)),
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],
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),
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Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text('点击生成随机数值',),
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Text(
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'$_value',
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style: Theme.of(context).textTheme.headlineMedium,
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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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floatingActionButton: FloatingActionButton(
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onPressed: _generateRandomValue,
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tooltip: 'Increment',
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child: const Icon(Icons.generating_tokens_outlined),
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),
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);
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}
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} |