Firebase Не восстанавливает изображение и текст из базы данных после сохранения под UserID

Question

Я пытаюсь получить изображения и текст, сохраненные в Firebase под текущим идентификатором пользователя. Прежде чем сохранять их под идентификатором пользователя, я мог получить изображения в программе просмотра, но все могли видеть изображения. Поскольку я реализовал идентификатор аутентификации, при попытке извлечь изображения ничего не отображается.

В галерее я выбираю изображение и добавляю два редактируемых текста, которые будут сохранены вместе с ним.

public class Gallery extends AppCompatActivity {
private static final int PICK_IMAGE_REQUEST = 1;
private Button mButtonChooseImage;
private Button mButtonUpload;
private TextView mTextViewShowUploads;
private EditText mEditTextFileName;
private EditText mEditTextDescription;
private ImageView mImageView;
private ProgressBar mProgressBar;
private Uri mImageUri;
private StorageReference mStorageRef;
private DatabaseReference mDatabaseRef;
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthStateListener;
private StorageTask mUploadTask;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_gallery);


    mButtonChooseImage = findViewById(R.id.button_image2);
    mButtonUpload = findViewById(R.id.button_upload2);
    mTextViewShowUploads = findViewById(R.id.text_view_show_uploads);
    mEditTextFileName = findViewById(R.id.edit_text_file_name);
    mEditTextDescription=findViewById(R.id.edit_text_description);
    mImageView = findViewById(R.id.image_view);
    mProgressBar = findViewById(R.id.progress_bar);

    //  mDatabaseRef = FirebaseDatabase.getInstance().getReference("uploads");

    mAuth = FirebaseAuth.getInstance();
    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
    String userID = user.getUid();
    mStorageRef = FirebaseStorage.getInstance().getReference("uploads").child(userID);
    mDatabaseRef = FirebaseDatabase.getInstance().getReference("uploads");

    mButtonChooseImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openFileChooser();
        }
    });

    mButtonUpload.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (mUploadTask != null && mUploadTask.isInProgress()) {
                Toast.makeText(Gallery.this, "Upload in progress", Toast.LENGTH_SHORT).show();

            } else {
                uploadFile();
            }
        }
    });

    mTextViewShowUploads.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openImagesActivity();
        }
    });
}
private void openFileChooser() {
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(intent, PICK_IMAGE_REQUEST);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK
            && data != null && data.getData() != null) {
        mImageUri = data.getData();
        Picasso.with(this).
                load(mImageUri).
                into(mImageView);
    }
}
private String getFileExtension(Uri uri) {
    ContentResolver cR = getContentResolver();
    MimeTypeMap mime = MimeTypeMap.getSingleton();
    return mime.getExtensionFromMimeType(cR.getType(uri));
}
private void uploadFile() {

    if (mImageUri != null) {
        StorageReference fileReference = mStorageRef.child(System.currentTimeMillis()
                + "." + getFileExtension(mImageUri));

        mUploadTask = fileReference.putFile(mImageUri)
                .addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                        Handler handler = new Handler();
                        handler.postDelayed(new Runnable() {
                            @Override
                            public void run() {
                                mProgressBar.setProgress(0);
                            }
                        }, 500);

                        Toast.makeText(Gallery.this, "Upload successful", Toast.LENGTH_LONG).show();
                       /* Upload upload = new Upload(mEditTextFileName.getText().toString().trim(),
                                taskSnapshot.getMetadata().getReference().getDownloadUrl().toString());
                        String uploadId = mDatabaseRef.push().getKey();
                        mDatabaseRef.child(uploadId).setValue(upload);*/

                        Task<Uri> urlTask = taskSnapshot.getStorage().getDownloadUrl();
                        while (!urlTask.isSuccessful());
                        String user_id = mAuth.getCurrentUser().getUid();
                        DatabaseReference current_db = FirebaseDatabase.getInstance().getReference("uploads").child(user_id);
                        Uri downloadUrl = urlTask.getResult();
                        Upload upload = new Upload(mEditTextFileName.getText().toString().trim(),downloadUrl.toString());
                        upload.setDescription(mEditTextDescription.getText().toString());
                        String uploadId = mDatabaseRef.push().getKey();
                        mDatabaseRef.child(uploadId).setValue(upload);

                        current_db.setValue(uploadId);
                    }

                })

                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {

                        Toast.makeText(Gallery.this, e.getMessage(), Toast.LENGTH_SHORT).show();
                    }

                })

                .addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {

                        double progress = (100.0 * taskSnapshot.getBytesTransferred() / taskSnapshot.getTotalByteCount());
                        mProgressBar.setProgress((int) progress);
                    }
                });
    } else {

        Toast.makeText(this, "No file selected", Toast.LENGTH_SHORT).show();
    }
}
private void openImagesActivity() {
    Intent intent = new Intent(this, ImagesActivity.class);
    startActivity(intent);

}

}

Вот мой класс ImageAdapter:

public class ImageAdapter extends RecyclerView.Adapter<ImageAdapter.ImageViewHolder>{
private Context mContext;
private List<Upload> mUploads;
private OnItemClickListener mListener;


public ImageAdapter(Context context, List<Upload> uploads){
    mContext = context;
   mUploads = uploads;
}

@Override
public ImageViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(mContext).inflate(R.layout.image_item, parent, false);
    return new ImageViewHolder(v);
}

@Override
public void onBindViewHolder(ImageViewHolder holder, int position) {
    Upload uploadCurrent = mUploads.get(position);
    holder.textViewName.setText(uploadCurrent.getName());
    holder.textViewDescription.setText(uploadCurrent.getDescription());
    Picasso.with(mContext)
            .load(uploadCurrent.getImageUrl())
            .fit()
            .centerInside()
            .into(holder.imageView);
}

@Override
public int getItemCount() {
    return mUploads.size();
}

public class ImageViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener,
        View.OnCreateContextMenuListener, MenuItem.OnMenuItemClickListener {
    public TextView textViewName;
    public TextView textViewDescription;
    public ImageView imageView;

    public ImageViewHolder(View itemView) {
        super(itemView);

        textViewName = itemView.findViewById(R.id.text_view_name);
        textViewDescription = itemView.findViewById(R.id.text_view_description);
        imageView = itemView.findViewById(R.id.image_view_upload);


        itemView.setOnClickListener(this);
        itemView.setOnCreateContextMenuListener(this);
    }

    @Override
    public void onClick(View v) {
        if (mListener != null){
            int position = getAdapterPosition();
            if (position != RecyclerView.NO_POSITION){
                mListener.onItemClick(position);
            }
        }
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
        menu.setHeaderTitle("Select Action");
        MenuItem doWhatever = menu.add(Menu.NONE, 1, 1, "Do Whatever");
        MenuItem delete = menu.add(Menu.NONE, 2, 2, "Delete");
        doWhatever.setOnMenuItemClickListener(this);
        delete.setOnMenuItemClickListener(this);
    }

    @Override
    public boolean onMenuItemClick(MenuItem item) {

        if(mListener != null) {
            int position = getAdapterPosition();
            if (position != RecyclerView.NO_POSITION) {
                switch (item.getItemId()){
                    case 1:
                        mListener.onWhatEverClick(position);
                        return true;
                    case 2:
                        mListener.onDeleteClick(position);
                        return true;
                }
            }
        }
        return false;
    }
}

public interface OnItemClickListener{
    void onItemClick(int position);
    void onWhatEverClick(int position);
    void onDeleteClick(int position);

}
public void setOnItemClickListener(OnItemClickListener listener){
    mListener = listener;
} 

}

Затем изображения должны быть возвращены в ImagesActivity в представление переработчика, но ничего не отображается. Я не уверен, что я пытаюсь получить их правильно, так как часть userID смутила меня.

public class ImagesActivity extends AppCompatActivity implements ImageAdapter.OnItemClickListener {
private RecyclerView mRecyclerView;
private  ImageAdapter mAdapter;


private FirebaseStorage mStorage; //firebase storage variable

private DatabaseReference mDatabaseRef;

private ValueEventListener mDBListener;

private List<Upload> mUploads;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_images);

    mRecyclerView = findViewById(R.id.recyler_view);
    mRecyclerView.setHasFixedSize(true);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    mUploads = new ArrayList<>();

    mAdapter = new ImageAdapter(ImagesActivity.this, mUploads);
    mRecyclerView.setAdapter(mAdapter);
    mAdapter.setOnItemClickListener(ImagesActivity.this);

    //https://www.youtube.com/watch?v=n2vcTdUpsLI
    mStorage = FirebaseStorage.getInstance();
    //end
    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
    String userID = user.getUid();

    mDatabaseRef = FirebaseDatabase.getInstance().getReference("uploads").child(userID);
    mDBListener=mDatabaseRef.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

            mUploads.clear();
            for(DataSnapshot postSnapshot : dataSnapshot.getChildren()){
                Upload upload = postSnapshot.getValue(Upload.class);
                //https://www.youtube.com/watch?v=n2vcTdUpsLI
                upload.setKey(postSnapshot.getKey());
                //end
                mUploads.add(upload);
            }
            mAdapter.notifyDataSetChanged();
           /*mAdapter = new ImageAdapter(ImagesActivity.this, mUploads);

            mRecyclerView.setAdapter(mAdapter);
            mAdapter.setOnItemClickListener(ImagesActivity.this); */
        }
        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {
            Toast.makeText(ImagesActivity.this, databaseError.getMessage(), Toast.LENGTH_SHORT).show();
        }
    });

}

@Override
public void onItemClick(int position) {
    Toast.makeText(this, "Normal click at position: " + position, Toast.LENGTH_SHORT).show();
}

@Override
public void onWhatEverClick(int position) {
    Toast.makeText(this, "Whatever click at position: " + position, Toast.LENGTH_SHORT).show();
}

@Override
public void onDeleteClick(int position) {
    Upload selectedItem = mUploads.get(position);
    final String selectedKey = selectedItem.getKey();

    StorageReference imageRef = mStorage.getReferenceFromUrl(selectedItem.getImageUrl());
    imageRef.delete().addOnSuccessListener(new OnSuccessListener<Void>() {
        @Override
        public void onSuccess(Void aVoid) {
            mDatabaseRef.child(selectedKey).removeValue();
            Toast.makeText(ImagesActivity.this, "Item Deleted", Toast.LENGTH_SHORT).show();
        }
    });
}

@Override
protected void onDestroy(){
    super.onDestroy();
    mDatabaseRef.removeEventListener(mDBListener);
}

}