getDownloadUrl not working and no idea how to solve it

[JuliusWildenburg]

`public class Upload_Images_Activity extends AppCompatActivity {

private static final int PICK_IMAGE_REQUEST=1;

private Button mButtonChooseImage;
private Button mButtonUpload;
private TextView mTextViewShowUploads;
private EditText mEditTextFileName;
private ImageView mImageView;
private ProgressBar mProgressbar;
private String MyUID, photoStringLink;
private TextView tvImageUri;
private Uri mImageUri;

private StorageReference mStorageRef;
private DatabaseReference mDatabaseRef;

private StorageTask mUploadTask;

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

    mButtonChooseImage = findViewById(R.id.btnChooseImage);
    mButtonUpload = findViewById(R.id.btnUploadImage);
   // mTextViewShowUploads = findViewById(R.id.tvShowUploads);
    mEditTextFileName = findViewById(R.id.etImageName);
    mImageView = findViewById(R.id.ivUploadedImage);
    mProgressbar = findViewById(R.id.pbUploadingImage);
    FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
    MyUID = user.getUid();
    mStorageRef = FirebaseStorage.getInstance().getReference(MyUID).child("General_Image_Posts");
    mDatabaseRef = FirebaseDatabase.getInstance().getReference("General_Image_Posts").child(MyUID);
    mButtonChooseImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            openFileChooser();
        }
    });

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

  /*  mTextViewShowUploads.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            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, @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).fit().centerCrop().into(mImageView);
    }
}


private String getFileExtension(Uri uri) { //om extension van bestand te krijgen
    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);
                        mImageView.setImageResource(0);
                        mImageUri = null;


                        Toast.makeText(Upload_Images_Activity.this, "Upload succesful", Toast.LENGTH_SHORT).show();
                        Upload upload = new Upload(mEditTextFileName.getText().toString().trim(),
                                taskSnapshot.**getDownloadUrl()**.toString());
                        String uploadId = mDatabaseRef.push().getKey();
                        mDatabaseRef.child(uploadId).setValue(upload);
                        mEditTextFileName.getText().clear();
                    }
                })
                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        Toast.makeText(Upload_Images_Activity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
                    }
                })
                .addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onProgress(@NonNull UploadTask.TaskSnapshot taskSnapshot) {
                        double progress = (100.0* taskSnapshot.getBytesTransferred() / taskSnapshot.getTotalByteCount());
                        mProgressbar.setProgress((int) progress);
                    }
                });}
    else {
        Toast.makeText(this, "No file selected", Toast.LENGTH_LONG).show();
    }
}

}
`

[jonathanbcsouza]

Hey @JuliusWildenburg this gist might help you:
https://gist.github.com/jonathanbcsouza/13929ab81077645f1033bf9ce45beaab

[BarshaPal]

               String downloadUrl = taskSnapshot.getMetadata().getReference().getDownloadUrl().toString();
                
                FriendlyMessage friendlyMessage = new FriendlyMessage(null, mUsername, downloadUrl);

TRY,THIS MAY WORK