I'm trying to get all the images stored in the firebase storage but it doesn't show the images neither there is any kind of error or warnings it just shows an empty recycler view
Here is the image of the screen is see
Java Files
Search_Fragment.java
public class Search_Fragment extends Fragment {
public List<Upload> mUploads;
PostAdapter postsAdapter;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_search, container, false);
RecyclerView postRecyclerView = view.findViewById(R.id.postRecyclerView);
DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference("uploads");
postRecyclerView.setLayoutManager(
new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL)
);
mUploads = new ArrayList<>();
postsAdapter = new PostAdapter(getContext(),mUploads);
postRecyclerView.setAdapter(postsAdapter);
//This are images that i tried manual ly and it worked fine
// List<PostItem> postItems = new ArrayList<>();
// postItems.add(new PostItem(R.drawable.image1));
// postItems.add(new PostItem(R.drawable.image2));
// postItems.add(new PostItem(R.drawable.image3));
// postItems.add(new PostItem(R.drawable.image4));
// postItems.add(new PostItem(R.drawable.image5));
// postItems.add(new PostItem(R.drawable.image7));
// postItems.add(new PostItem(R.drawable.image9));
databaseReference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
for (DataSnapshot dataSnapshot : snapshot.getChildren()) {
Upload upload = dataSnapshot.getValue(Upload.class);
mUploads.add(upload);
}
Toast.makeText(getActivity(), "Success", Toast.LENGTH_SHORT).show();
//notify the adapter
postsAdapter.notifyDataSetChanged();
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
Toast.makeText(getActivity(), "Failiur", Toast.LENGTH_SHORT).show();
}
});
return view;
}
}
PostAdapter.java //adapter
public class PostAdapter extends RecyclerView.Adapter<PostAdapter.PostViewHolder> {
public static List<Upload> mUploads;
private final Context mContext;
public PostAdapter(Context context, List<Upload> uploads) {
mUploads = uploads;
mContext = context;
}
@NonNull
@Override
public PostViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.post_item_container, parent,false);
return new PostViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull PostViewHolder holder, int position) {
Transformation transformation = new RoundedTransformationBuilder()
.borderColor(Color.WHITE)
.borderWidthDp(5)
.cornerRadiusDp(13)
.oval(false)
.build();
Picasso.get()
.load(mUploads.get(position).getmImageUrl())
.fit()
.transform(transformation)
.into(holder.postImageView);
}
@Override
public int getItemCount() {
return mUploads.size();
}
public static class PostViewHolder extends RecyclerView.ViewHolder {
RoundedImageView postImageView;
PostViewHolder(@NonNull View itemView) {
super(itemView);
postImageView = itemView.findViewById(R.id.imagePost);
}
}
}
Upload.Java //model for storing imageuri in strings
public class Upload {
private String mImageUrl;
public Upload() {
}
public Upload(String imageUrl) {
mImageUrl = imageUrl;
}
public String getmImageUrl() {
return mImageUrl;
}
public void setmImageUrl(String mImageUrl) {
this.mImageUrl = mImageUrl;
}
}
Upload_Fragment.java
public class Upload_Fragment extends Fragment {
private static final int PICK_IMAGE_REQUEST = 10;
private ImageView uploadImageView;
private Uri mImageUri;
private StorageReference storageReference;
private DatabaseReference databaseReference;
private StorageTask mUploadTask;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_upload, container, false);
Button chooseImageButton = view.findViewById(R.id.upload_image_button);
Button uploadImageButton = view.findViewById(R.id.done_button);
uploadImageView = view.findViewById(R.id.upload_image_view);
storageReference = FirebaseStorage.getInstance().getReference("uploads");
databaseReference = FirebaseDatabase.getInstance().getReference("uploads");
chooseImageButton.setOnClickListener(v -> openFileChooser());
uploadImageButton.setOnClickListener(v -> {
if (mUploadTask != null && mUploadTask.isInProgress()) {
Toast.makeText(getActivity(), "Upload in Progress", Toast.LENGTH_SHORT).show();
} else {
uploadToFirebase(mImageUri);
}
});
return view;
}
private void openFileChooser() {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, PICK_IMAGE_REQUEST);
}
@Override
public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK
&& data != null && data.getData() != null) {
mImageUri = data.getData();
Picasso.get().load(mImageUri).into(uploadImageView);
}
}
private String getFileExtension(Uri uri) {
ContentResolver contentResolver = Objects.requireNonNull(getActivity()).getContentResolver();
MimeTypeMap mime = MimeTypeMap.getSingleton();
return mime.getExtensionFromMimeType(contentResolver.getType(uri));
}
private void uploadToFirebase(Uri mImageUri) {
if (mImageUri != null) {
final ProgressDialog progressDialog = new ProgressDialog(getActivity());
progressDialog.setTitle("Uploading...");
progressDialog.show();
StorageReference reference = storageReference.child(System.currentTimeMillis()
+ "." + getFileExtension(mImageUri));
reference.putFile(mImageUri)
.addOnSuccessListener(taskSnapshot -> {
progressDialog.dismiss();
Toast.makeText(getActivity(), "Saved Succesfully", Toast.LENGTH_SHORT).show();
reference.getDownloadUrl()
.addOnSuccessListener(uri -> {
Upload upload = new Upload(uri.toString());
String uploadId = databaseReference.push().getKey();
databaseReference.child(uploadId).setValue(upload);
});
})
.addOnProgressListener(snapshot -> {
double progress = (100.0 * snapshot.getBytesTransferred() / snapshot
.getTotalByteCount());
progressDialog.setMessage("Uploaded " + (int) progress + "%");
})
.addOnFailureListener(e -> {
progressDialog.dismiss();
Toast.makeText(getActivity(), "Error Ocurred" + e.getMessage(), Toast.LENGTH_SHORT).show();
});
}
}
}