Files
flutter_common/example/lib/main.dart

184 lines
6.5 KiB
Dart
Raw Normal View History

2025-11-10 17:12:53 +08:00
import 'package:dio/dio.dart';
2025-11-11 14:56:13 +08:00
import 'package:example/exif/customer_exif_Page.dart';
2025-11-10 14:45:41 +08:00
import 'package:flutter/material.dart';
2025-11-10 17:12:53 +08:00
import 'package:flutter/services.dart';
import 'package:image_editor_plus/image_editor_plus.dart';
2025-11-10 14:45:41 +08:00
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// TRY THIS: Try running your application with "flutter run". You'll see
// the application has a purple toolbar. Then, without quitting the app,
// try changing the seedColor in the colorScheme below to Colors.green
// and then invoke "hot reload" (save your changes or press the "hot
// reload" button in a Flutter-supported IDE, or press "r" if you used
// the command line to start the app).
//
// Notice that the counter didn't reset back to zero; the application
// state is not lost during the reload. To reset the state, use hot
// restart instead.
//
// This works for code too, not just values: Most code changes can be
// tested with just a hot reload.
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
2025-11-11 14:56:13 +08:00
// home: const MyHomePage(title: 'Flutter Demo Home Page'),
home: CustomerExifPage(),
2025-11-10 14:45:41 +08:00
);
}
}
2025-11-10 17:12:53 +08:00
/// Dio 最简版:网络图片转 Uint8List
Future<Uint8List?> networkImageToUint8ListWithDio(String imageUrl) async {
final dio = Dio(); // 初始化 Dio 实例
try {
// 发起 GET 请求,响应类型设为字节数组(关键)
final response = await dio.get<List<int>>(
imageUrl,
options: Options(responseType: ResponseType.bytes),
);
// 响应成功且数据非空时,直接转为 Uint8List
return response.statusCode == 200 && response.data != null
? Uint8List.fromList(response.data!)
: null;
} catch (e) {
print('图片转换失败:$e'); // 捕获网络错误、URL 非法等异常
return null;
}
}
2025-11-10 14:45:41 +08:00
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
2025-11-10 17:12:53 +08:00
final int _counter = 0;
2025-11-10 14:45:41 +08:00
2025-11-10 17:12:53 +08:00
Future<void> _incrementCounter()async {
String imageUrl = 'https://static.cop.jingheyijia.com/wxapp-map2/upload/moment/20251029/app-bpItvFOQufCL.jpg';
Uint8List? imageBytes = await networkImageToUint8ListWithDio(imageUrl);
ImageEditor.setI18n({
'crop': '裁剪',
'rotate left': '左旋转',
'rotate right': '右旋转',
'flip': '水平翻转',
'brush': '涂抹',
'link':'链接',
'save': '保存',
'text': '文本',
'blur': '模糊',
'filter': '滤镜',
'size': '大小',
'color': '颜色',
'background color': '背景颜色',
'background opacity': '背景透明度',
'reset': '重置',
'freeform': '自由裁剪',
'remove': '移除',
'emoji': '表情',
'slider color': '滑块颜色',
'color opacity': '透明度',
'blur radius': '模糊半径',
2025-11-10 14:45:41 +08:00
});
2025-11-10 17:12:53 +08:00
if(mounted){
final editedImage = await Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ImageEditor(
image: imageBytes,
blurOption: null,
filtersOption: null,
brushOption: null,
textOption: null,
emojiOption: null,
),
),
);
}
2025-11-10 14:45:41 +08:00
}
2025-11-10 17:12:53 +08:00
2025-11-10 14:45:41 +08:00
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// TRY THIS: Try changing the color here to a specific color (to
// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
// change color while the other colors stay the same.
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
//
// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
// action in the IDE, or press "p" in the console), to see the
// wireframe for each widget.
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
2025-11-10 17:12:53 +08:00
}