Upload multiple images to firebase storage

Question

i build a chat application using firebase and i want to send multiple image to firebase storage.

using this library

compile 'com.github.darsh2:MultipleImageSelect:3474549'

At the top

private StorageReference storageRef;
private FirebaseApp app;
private FirebaseStorage storage;

onCreate()Method

app = FirebaseApp.getInstance();
storage =FirebaseStorage.getInstance(app);

button click action

   Gallary.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                Intent intent = new Intent(ChatActivity.this, AlbumSelectActivity.class);
                intent.putExtra(Constants.INTENT_EXTRA_LIMIT, 10);
                startActivityForResult(intent, Constants.REQUEST_CODE);
                pwindo1.dismiss();
            }
        });

Activity result

    if (requestCode == Constants.REQUEST_CODE && resultCode == RESULT_OK) {
        ArrayList<Image> images = data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);
        Uri uri = Uri.parse(String.valueOf(images));
        storageRef = storage.getReference("photos");
        final StorageReference photoRef = storageRef.child(uri.getLastPathSegment());
        photoRef.putFile(uri)
                .addOnSuccessListener(this, new OnSuccessListener<UploadTask.TaskSnapshot>() {
                    public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                        Uri downloadUrl = taskSnapshot.getDownloadUrl();
                        String content = downloadUrl.toString();
                        if (content.length() > 0) {
                            editWriteMessage.setText("");
                            Message newMessage = new Message();
                            newMessage.text = content;
                            newMessage.idSender = StaticConfig.UID;
                            newMessage.idReceiver = roomId;
                            newMessage.timestamp = System.currentTimeMillis();
                            FirebaseDatabase.getInstance().getReference().child("message/" + roomId).push().setValue(newMessage);
                        }
                    }
                });

    }

Answer 1

Variables

• private static final int PICK_IMAGE = 1;
• Button chooserBtn, uploaderBtn;
• TextView alert;
• private Uri ImageUri;
• ArrayList ImageList = new ArrayList();
• private int upload_count = 0;
• private ProgressDialog progressDialog;
• ArrayList urlStrings;

onCreate()

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

    uploaderBtn = findViewById(R.id.uploader);
    chooserBtn = findViewById(R.id.chooser);
    alert = findViewById(R.id.alert);

    progressDialog = new ProgressDialog(MainActivity.this);
    progressDialog.setMessage("Uploading Images please Wait.........!!!!!!");
    chooserBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.setType("image/*");
            intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
            startActivityForResult(intent, PICK_IMAGE);


        }
    });

Uploader Button

    uploaderBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            urlStrings = new ArrayList<>();
            progressDialog.show();
            alert.setText("If Loading Takes to long press button again");
            StorageReference ImageFolder = FirebaseStorage.getInstance().getReference().child("ImageFolder");

            for (upload_count = 0; upload_count < ImageList.size(); upload_count++) {

                Uri IndividualImage = ImageList.get(upload_count);
                final StorageReference ImageName = ImageFolder.child("Images" + IndividualImage.getLastPathSegment());

                ImageName.putFile(IndividualImage).addOnSuccessListener(
                        new OnSuccessListener<UploadTask.TaskSnapshot>() {
                            @Override
                            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                                ImageName.getDownloadUrl().addOnSuccessListener(
                                        new OnSuccessListener<Uri>() {
                                            @Override
                                            public void onSuccess(Uri uri) {
                                                urlStrings.add(String.valueOf(uri));



                                                if (urlStrings.size() == ImageList.size()){
                                                    storeLink(urlStrings);
                                                }

                                            }
                                        }
                                );
                            }
                        }
                );


            }


        }
    });


}

This Line of will help us to store Links of All Images under One Node

                                                if (urlStrings.size() == ImageList.size()){
                                                    storeLink(urlStrings);
                                                }

Store Links To Firebase Realtime Database

private void storeLink(ArrayList<String> urlStrings) {

    HashMap<String, String> hashMap = new HashMap<>();

    for (int i = 0; i <urlStrings.size() ; i++) {
        hashMap.put("ImgLink"+i, urlStrings.get(i));

    }
    DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference().child("User");

    databaseReference.push().setValue(hashMap)
            .addOnCompleteListener(
                    new OnCompleteListener<Void>() {
                        @Override
                        public void onComplete(@NonNull Task<Void> task) {
                            if (task.isSuccessful()) {
                                Toast.makeText(MainActivity.this, "Successfully Uplosded", Toast.LENGTH_SHORT).show();
                            }
                        }
                    }
            ).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception e) {
            Toast.makeText(MainActivity.this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
        }
    });
    progressDialog.dismiss();
    alert.setText("Uploaded Successfully");
    uploaderBtn.setVisibility(View.GONE);

    ImageList.clear();
}

onActivityResult()

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

    if (requestCode == PICK_IMAGE) {
        if (resultCode == RESULT_OK) {


            if (data.getClipData() != null) {

                int countClipData = data.getClipData().getItemCount();
                int currentImageSlect = 0;

                while (currentImageSlect < countClipData) {

                    ImageUri = data.getClipData().getItemAt(currentImageSlect).getUri();
                    ImageList.add(ImageUri);
                    currentImageSlect = currentImageSlect + 1;
                }

                alert.setVisibility(View.VISIBLE);
                alert.setText("You have selected" + ImageList.size() + "Images");
                chooserBtn.setVisibility(View.GONE);


            } else {
                Toast.makeText(this, "Please Select Multiple Images", Toast.LENGTH_SHORT).show();
            }

        }
    }
}

}

Answer 2

It is working fine.

 if (requestCode == Constants.REQUEST_CODE && resultCode == RESULT_OK) {
        ArrayList<Image> images = data.getParcelableArrayListExtra(Constants.INTENT_EXTRA_IMAGES);
        Uri[] uri=new Uri[images.size()];
        for (int i =0 ; i < images.size(); i++) {
            uri[i] = Uri.parse("file://"+images.get(i).path);
            storageRef = storage.getReference("photos");
            final StorageReference ref = storageRef.child(uri[i].getLastPathSegment());
            ref.putFile(uri[i])
                    .addOnSuccessListener(this, new OnSuccessListener<UploadTask.TaskSnapshot>() {
                        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                            Uri downloadUrl = taskSnapshot.getDownloadUrl();
                            String content = downloadUrl.toString();
                            if (content.length() > 0) {
                                editWriteMessage.setText("");
                                Message newMessage = new Message();
                                newMessage.text = content;
                                newMessage.idSender = StaticConfig.UID;
                                newMessage.idReceiver = roomId;
                                newMessage.timestamp = System.currentTimeMillis();
                                FirebaseDatabase.getInstance().getReference().child("message/" + roomId).push().setValue(newMessage);
                            }
                        }
                    });

        }

    }