Question

                Uri downloaduri=taskSnapshot.getDownloadUrl();//here i cant use getdownloadurl() function
                DatabaseReference new_prod=db.push();
                new_prod.child("product name").setValue(prod_name);
                new_prod.child("product price").setValue(prod_price);
                new_prod.child("available stock").setValue(prod_quan);
                new_prod.child("product image").setValue(downloaduri);
                pd.dismiss();//fragments code

我无法使用getdownloadurl。我已经将图像存储在Firebase存储器中了，这是限制使用getdownloadurl的片段吗？我的动机是要进行查询以存储在firebase中。请帮助我。

Answer 1

taskSnapshot.getDownloadUrl()方法已在Firebase Storage SDK的最新版本中删除。您现在需要从StorageReference获取下载URL。

来自documentation on downloading a file：

 storageRef.child("users/me/profile.png").getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
    @Override
    public void onSuccess(Uri uri) {
        // Got the download URL for 'users/me/profile.png' in uri
        System.out.println(uri.toString());
    }
}).addOnFailureListener(new OnFailureListener() {
    @Override
    public void onFailure(@NonNull Exception exception) {
        // Handle any errors
    }
});

或者，在您的情况下，第一行可能是这样：

taskSnapshot.getStorage().getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {

另请参阅：

Answer 2

经过数小时的研究和不同的方式，这对我有用：

filepath.putFile(resultUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
     @Override
     public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

           //here
           Task<Uri> urlTask = taskSnapshot.getStorage().getDownloadUrl();
           while (!urlTask.isSuccessful());
           Uri downloadUrl = urlTask.getResult();

           final String sdownload_url = String.valueOf(downloadUrl);

Answer 3

df.groupby(['x','y']).size()==1
Out[308]: 
x  y
1  a     True
2  b     True
3  c     True
4  d    False
dtype: bool

Answer 4

下面的方法对我有用。

- hosts: localhost
  tasks:
    - name: create hosts file from template
      template: 
        src: hosts_file.j2
        dest: {{store_files_path}}/{{ansible_date_time.date}}/{{ansible_date_time.time}}/hosts.txt

Answer 5

这是 Kotlin 解决方案，它在搜索 3 小时后对我有用

 val uploadTask =
        FirebaseStorage.getInstance().reference.child("images").child(imageName).putBytes(data)

    uploadTask.addOnFailureListener {
        // Handle unsuccessful uploads
        Toast.makeText(baseContext, "Failed to upload", Toast.LENGTH_LONG).show()
    }.addOnSuccessListener {
        Toast.makeText(
            baseContext, "Image uploaded",
            Toast.LENGTH_LONG
        ).show()
        var downloadUrl: Uri? = null
        FirebaseStorage.getInstance().reference.child("images")
            .child(imageName).downloadUrl.addOnSuccessListener { it1 ->
            downloadUrl = it1 
          
        }


    }

downloadUrl 是您的网址

如何在最新版本中使用getdownloadurl？

5 个答案: