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sight-identification/lib/screens/welcome_screen.dart
2026-01-07 16:42:22 +08:00

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import 'package:flutter/material.dart';
import 'camera_screen.dart';
class WelcomeScreen extends StatelessWidget {
const WelcomeScreen({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: [
Colors.blue.shade400,
Colors.blue.shade700,
],
),
),
child: SafeArea(
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
// 图标
Icon(
Icons.camera_alt,
size: 100,
color: Colors.white,
),
const SizedBox(height: 30),
// 标题
const Text(
'自动拍照应用',
style: TextStyle(
fontSize: 32,
fontWeight: FontWeight.bold,
color: Colors.white,
),
),
const SizedBox(height: 20),
// 说明文字
Padding(
padding: const EdgeInsets.symmetric(horizontal: 40),
child: Text(
'点击按钮开始自动拍照\n每2秒拍摄一次共拍摄5张照片',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
color: Colors.white.withOpacity(0.9),
height: 1.5,
),
),
),
const SizedBox(height: 60),
// 开始按钮
ElevatedButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => const CameraScreen(),
),
);
},
style: ElevatedButton.styleFrom(
backgroundColor: Colors.white,
foregroundColor: Colors.blue.shade700,
padding: const EdgeInsets.symmetric(
horizontal: 50,
vertical: 18,
),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(30),
),
elevation: 5,
),
child: const Text(
'开始拍照',
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
),
],
),
),
),
),
);
}
}