如何在Flutter中将多张图片上传到API？

List<File> selectedImages = [];

Future<void> pickMultipleImages() async {
  List<XFile>? images = await ImagePicker().pickMultiImage();
  if (images != null) {
    selectedImages.clear();
    for (var image in images) {
      selectedImages.add(File(image.path));
    }
  }
}

Future<void> uploadImagesToApi() async {
  var url = 'API_URL';
  
  var dio = Dio();
  
  for (var imageFile in selectedImages) {
    var formData = FormData.fromMap({
      'image': await MultipartFile.fromFile(
        imageFile.path,
        filename: imageFile.path.split('/').last,
      ),
    });
    
    try {
      var response = await dio.post(
        url,
        data: formData,
      );
      
      // 处理上传成功的响应
      print(response.data);
    } catch (error) {
      // 处理上传失败的情况
      print(error.toString());
    }
  }
}

import 'package:cos/cos.dart';

Future<void> uploadImagesToTencentCos() async {
  var credentials = COSCredentials(
    secretId: 'YOUR_SECRET_ID',
    secretKey: 'YOUR_SECRET_KEY',
  );
  
  var config = COSClientConfig(
    region: 'REGION',
    credentials: credentials,
  );
  
  var client = COSClient(config);
  
  for (var imageFile in selectedImages) {
    try {
      var result = await client.putObject(
        bucket: 'YOUR_BUCKET_NAME',
        objectKey: 'YOUR_OBJECT_KEY',
        path: imageFile.path,
      );
      
      // 处理上传成功的响应
      print(result);
    } catch (error) {
      // 处理上传失败的情况
      print(error.toString());
    }
  }
}