Dart未处理的异常:[firebase_storage/nunknown]位置不应是完整的URL

Question

我试着使用这个插件https://pub.dev/packages/flutter_cache_manager_firebase用的url缓存我保存在firebase存储中的音频

https://firebasestorage.googleapis.com/v0/b/ocwa-app.appspot.com/o/142-1624205564448.aac?alt=media&令牌=b06a7cf9-5050-43ad-b5e9-60c4eda85b54

当我将url传递给方法时

file = await FirebaseCacheManager().getSingleFile(widget.url);

它在控制台中抛出一个错误

E/flutter (32343): [ERROR:flutter/shell/common/shell.cc(103)] Dart Unhandled Exception: [firebase_storage/unknown] location should not be a full URL., stack trace: #0      MethodChannelReference.getDownloadURL (package:firebase_storage_platform_interface/src/method_channel/method_channel_reference.dart:59:7)
E/flutter (32343): <asynchronous suspension>
E/flutter (32343): #1      FirebaseHttpFileService.get (package:flutter_cache_manager_firebase/src/firebase_http_file_service.dart:12:16)
E/flutter (32343): <asynchronous suspension>
E/flutter (32343): #2      WebHelper._updateFile (package:flutter_cache_manager/src/web/web_helper.dart:99:22)
E/flutter (32343): <asynchronous suspension>
E/flutter (32343): #3      WebHelper._downloadOrAddToQueue (package:flutter_cache_manager/src/web/web_helper.dart:67:7)
E/flutter (32343): <asynchronous suspension>

请告诉我如何将正确的url传递给参数。我使用的当前url是返回的downloadUrl

Future uploadAudio() async {
final uploadTimestamp = DateTime.now().millisecondsSinceEpoch;
setState(() {
fileName =
getImageFileName(G.loggedInId.toString(), '$uploadTimestamp');
fileName = fileName + '.aac';
});
Reference reference = FirebaseStorage.instance.ref().child(fileName);
TaskSnapshot uploading;
uploading = await reference.putFile(
File(recordingFile), SettableMetadata(contentType: 'audio/aac'));
return uploading.ref.getDownloadURL();
}

Answer 1

您需要从URL中删除该方案。

你可以这样做：

final String url = widget.url;
final Uri uri = Uri.parse(url);
final urlWithoutScheme = url.replaceFirst('${uri.scheme}://', '');
///Pass it to the getSingleFile method
file = await FirebaseCacheManager().getSingleFile(urlWithoutScheme);

下面的代码是引发错误的地方https://github.com/firebase/firebase-android-sdk/blob/master/firebase-storage/src/main/java/com/google/firebase/storage/FirebaseStorage.java.

if (lowerCaseLocation.startsWith("gs://")
|| lowerCaseLocation.startsWith("https://")
|| lowerCaseLocation.startsWith("http://")) {
throw new IllegalArgumentException("location should not be a full URL.");