使用image_picker打开图片库时iOS应用程序崩溃

<key>NSPhotoLibraryUsageDescription</key>
<string>我们需要访问您的相册来选择图片。</string>

import 'package:permission_handler/permission_handler.dart';

Future<void> requestPermission() async {
  var status = await Permission.photos.request();
  if (status.isGranted) {
    // 用户已授权
  } else {
    // 用户拒绝了权限请求
  }
}

flutter pub upgrade

<key>LSApplicationQueriesSchemes</key>
<array>
  <string>fb</string>
  <string>fbauth2</string>
  <string>fbshareextension</string>
</array>

import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('Image Picker Example')),
        body: ImagePickerExample(),
      ),
    );
  }
}

class ImagePickerExample extends StatefulWidget {
  @override
  _ImagePickerExampleState createState() => _ImagePickerExampleState();
}

class _ImagePickerExampleState extends State<ImagePickerExample> {
  XFile? _image;

  Future<void> _pickImage() async {
    final pickedFile = await ImagePicker().pickImage(source: ImageSource.gallery);
    setState(() {
      _image = pickedFile;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Center(
      child: _image == null
          ? ElevatedButton(
              onPressed: _pickImage,
              child: Text('Pick an image'),
            )
          : Image.file(File(_image!.path)),
    );
  }
}