android - 在 Android 中上传到 Firebase Cloud Storage 后，我无法获取视频下载 url。getDownloadUrl 不起作用

Question

我需要这个：

我可以将视频文件成功上传到 Firebase 存储，但我没有获得下载网址。这是我的上传代码：

 Task<Uri> uriTask = uploadTask.continueWithTask(new Continuation<UploadTask.TaskSnapshot, Task<Uri>>() {
     @Override
     public Task<Uri> then(@NonNull Task<UploadTask.TaskSnapshot> task) throws Exception {
           if(!task.isSuccessful())
                throw task.getException();
                downloadurl = mStorageRef.getDownloadUrl().toString();
                return mStorageRef.child(name1).getDownloadUrl();
            }
     }).addOnCompleteListener(new OnCompleteListener<Uri>() {
            @Override
            public void onComplete(@NonNull Task<Uri> task) {

                if(task.isSuccessful())
                   downloadurl = task.getResult().toString();

                   Map<String,Object> user = new HashMap<>();
                   user.put("videoname",name1);
                   user.put("videolink",downloadurl);
                   firebaseFirestore.collection("videos").document(userID).collection("video").document().set(user).addOnSuccessListener(new OnSuccessListener<Void>() {
                     @Override
                     public void onSuccess(Void aVoid) {
                          Toast.makeText(getActivity(),"Uploaded Successfully",Toast.LENGTH_SHORT).show();
                          progressBar.setVisibility(View.GONE);
                      }
                    });
                   }
                 });
               }
             })

标签： androidfirebasefirebase-storage

Answer 1

尝试这个

private Uri uri;    //global variable

当用户从手机中选择视频时，在onActivityResult() 中设置 uri

onActivityResult(int requestCode, int resultCode, Intent data)
uri = data.getData(); 

终于得到下载地址

final StorageReference ref = storageReference.child("firebaseFilePath");

    ref.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
            ref.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                @Override
                public void onSuccess(Uri uri) {
                    //now sUrl contains downloadURL
                    sUrl = uri.toString();

                }
            }).addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception exception) {
                    }
            });


        }
    });