Google Drive Android API - Check if folder exists

Question

I\'m trying to figure out how to check if a folder exists in Google Drive using the new Google Drive Android API

I\'ve tried the following, thinking that it would ei

Answer 1

After a lot of research this is the code I ended up with. It works properly, but has an issue: When a folder is trashed in Google Drive it takes some time (hours) before the metadata I can fetch from my app is updated, meaning that this code can first detect if the folder has been trashed a couple of hours later the trashing event actually happened - further information and discussions can be found here.

public class checkFolderActivity extends BaseDemoActivity {

    @Override
    public void onConnected(Bundle connectionHint) {
        super.onConnected(connectionHint);

        DriveId folderId = DriveId.decodeFromString(folderId);
        DriveFolder folder = Drive.DriveApi.getFolder(mGoogleApiClient, folderId);
        folder.getMetadata(mGoogleApiClient).setResultCallback(metadataRetrievedCallback);

    }

     final private ResultCallback metadataRetrievedCallback = new
        ResultCallback() {
            @Override
            public void onResult(DriveResource.MetadataResult result) {
                if (!result.getStatus().isSuccess()) {
                    Log.v(TAG, "Problem while trying to fetch metadata.");
                    return;
                }

                Metadata metadata = result.getMetadata();
                if(metadata.isTrashed()){
                    Log.v(TAG, "Folder is trashed");
                }else{
                    Log.v(TAG, "Folder is not trashed"); 
                }

            }
        };
}