How can I see hidden app data in Google Drive?

Question

I have an Android app that stores my notes in hidden app data. I want to export my notes so the question is simple:

How can I access the hidden app data in Google

Answer 1

to get all the file in app data try the code

private void listFiles() {
        Query query =
                new Query.Builder()
                        .addFilter(Filters.or(Filters.eq(SearchableField.MIME_TYPE, "text/html"),
                                Filters.eq(SearchableField.MIME_TYPE, "text/plain")))
                        .build();
        getDriveResourceClient()
                .query(query)

                .addOnSuccessListener(this,

                        new OnSuccessListener() {
                            @Override
                            public void onSuccess(MetadataBuffer metadataBuffer) {
                                //mResultsAdapter.append(metadataBuffer);

                                for (int i = 0; i 

also you can download the content of file bye the following code

public void retrieveContents(DriveFile file) {

        Task openFileTask =
                getDriveResourceClient().openFile(file, DriveFile.MODE_READ_ONLY);



        openFileTask.continueWithTask(new Continuation>() {
            @Override
            public Task then(@NonNull Task task) throws Exception {
                DriveContents contents = task.getResult();

                try (BufferedReader reader = new BufferedReader(
                        new InputStreamReader(contents.getInputStream()))) {
                    StringBuilder builder = new StringBuilder();
                    String line;
                    while ((line = reader.readLine()) != null) {
                        builder.append(line).append("\n");
                    }

                    Log.e("result ", builder.toString());
                }

                Task discardTask = MainActivity.this.getDriveResourceClient().discardContents(contents);
                // [END drive_android_discard_contents]
                return discardTask;
            }
        })
                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {

                    }
                });


    }