使用 Firebase 存储时未定义类 StorageReference

问题描述

我正在尝试上传图片，同样的过程也适用于我的其他应用程序，但是这里出现了这些错误，请问你们能帮忙吗?

i am trying to upload image, and the same process is working for my other app, but here it gives these errors, can you guy plz help?

Future getImage1() async {
    // ignore: deprecated_member_use
    var firstImage = await ImagePicker.pickImage(
        source: ImageSource.gallery, imageQuality: 65);
    setState(() {
      _image1 = firstImage;
    });
  }

推荐答案

从版本 firebase_storage 5.0.1 开始:

您必须执行以下操作:

Starting from Version firebase_storage 5.0.1:

You have to do the following:

FirebaseStorage storage = FirebaseStorage.instance;
Reference ref = storage.ref().child("image1" + DateTime.now().toString());
UploadTask uploadTask = ref.putFile(_image1);
uploadTask.then((res) {
   res.ref.getDownloadURL();
});

StorageReference 类已被删除，现在您必须使用 参考.UploadTask 扩展了 Task，它也实现了 Future.因此，Future 类中的所有方法都可以在 UploadTask 类上使用.

StorageReference class has been removed and now you have to use the class Reference. UploadTask extends Task, which also implements Future<TaskSnapshot>. Therefore all the methods that are in the class Future can be used on the class UploadTask.

因此要获取图像的 url，您需要使用 then() 方法，该方法注册一个回调，以便在此 future 完成时调用.

So to get the url of the image, you need to use the then() method which registers a callback to be called when this future completes.

这篇关于使用 Firebase 存储时未定义类 StorageReference的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！