android: To check whether textfile exists on google drive

Question

I am integrating Drive within my app. I am able to upload and download file from Drive.

But the issue is, I am not able to identify the particular textfile exists on drive or not, when I do first time uploading.

Please some one help me with accurate solution.

Thank you

Answer 1

Refer this

A sample query can be built as below and we can check if the file already exists or not

class SearchFileTask extends AsyncTask<Query, Void, MetadataBufferResult>{
    @Override
    protected MetadataBufferResult doInBackground(Query... params) {
        return Drive.DriveApi.query(getGoogleApiClient(), params[0]).await();
}

   @Override
   protected void onPostExecute(MetadataBufferResult metadataBufferResult) {
       if(metadataBufferResult.getMetadataBuffer().getCount()==0)
           // NO file
       else
           // File exists with given name
    }
}

Query query = new Query
        .Builder()
                .addFilter(Filters.eq(SearchableField.TITLE, "filename.extension"))
                .build();
new SearchFileTask().execute(query);