How to use

auth

method

in

com.dropbox.core.v2.DbxClientV2

public void deAuth() {
  MyPreferences.removeDropboxKeys(context);
  if (dropboxClient != null) {
    try {
      dropboxClient.auth().tokenRevoke();
    } catch (DbxException e) {
      Log.e("Financisto", "Unable to unlink Dropbox", e);
    }
  }
}

client.auth().tokenRevoke();