upload

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);

                        }
                    }, 5000);

                    Toast.makeText(Home.this, "Upload Successful", Toast.LENGTH_LONG).show();
                    Upload upload = new Upload(mCaption.getText().toString().trim(),
                            mStorageRef.getDownloadUrl().toString());

                    String uploadID = mDatabaseRef.push().getKey();
                    mDatabaseRef.child(uploadID).setValue(upload);



                }
            }).addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Toast.makeText(Home.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(Home.this, "No file selected", Toast.LENGTH_SHORT).show();

        }

    }