How to get offline uploaded file Download url in Firebase


April 2019


319 time


I want to get the Download Url from uploadTask.addOnProgressListener method of Firebase. How can I get the Download Url using following code?

    UploadTask uploadTask = storageRef.putBytes(data);

    uploadTask.addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>()
        public void onProgress(UploadTask.TaskSnapshot taskSnapshot)

I used taskSnapshot.getTask().getResult() but that is not working.

1 answers


In order to get the download url, you need to use addOnSuccessListener, like in the following lines of code:

uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
    public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
        storageRef.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
            public void onSuccess(Uri uri) {
                String url = uri.toString();

                //Do what you need to do with url

As in the Firebase release notes on May 23, 2018 is mentioned that:

Cloud Storage version 16.0.1

Removed the deprecated StorageMetadata.getDownloadUrl() and UploadTask.TaskSnapshot.getDownloadUrl() methods. To get a current download URL, use StorageReference.getDownloadUr().

So now when calling getDownloadUrl() on a StorageReference object it returns a Task object and not an Uri object anymore.

Please also rememeber, neither the success listener nor the failure listener (if you intend to use it), will be called if your device cannot reach Firebase Storage backend. The success/failure listeners will only be called once the data is committed to, or rejected by the Firebase servers.