如何从Flutter中的UploadTaskSnapshot获取完整的downloadUrl? [英] How to get full downloadUrl from UploadTaskSnapshot in Flutter?

问题描述

我正确地收到了UploadTaskSnapshot，并且字段downloadUrl包含一个Uri实例，该实例解析了上载文件的下载链接.

I correctly receive UploadTaskSnapshot, and the field downloadUrl contains an instance of Uri that parses download link of uploaded file.

如何以字符串形式获取存储和downloadUrl?

How to get storage and downloadUrl as strings?

推荐答案

旧

final uploadTask = imageStore.putFile(imageFile);
final url = (await uploadTask.future).downloadUrl;

更新

此答案 https://stackoverflow.com/a/52690889/217408 现在是准确的答案. >

This answer https://stackoverflow.com/a/52690889/217408 is now the accurate one.

final ref = FirebaseStorage.instance
    .ref()
    .child('path')
    .child('to')
    .child('the')
    .child('image_filejpg');

ref.putFile(imageFile);
// or ref.putData(Uint8List.fromList(imageData));

var url = await ref.getDownloadURL() as String;

或

var url = Uri.parse(await ref.getDownloadURL() as String);

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