pending = tagManager.loadContainerPreferNonDefault(CONTAINER_ID, R.raw.gtm_default_container); pending.setResultCallback(new ResultCallback<ContainerHolder>() { @Override public void onResult(ContainerHolder containerHolder) { ContainerHolderSingleton.setContainerHolder(containerHolder); if (!containerHolder.getStatus().isSuccess()) { Log.e(TAG, "failure loading container"); return; } startMainActivity(); } }, 2, TimeUnit.SECONDS); // Getting A/B value Container c = ContainerHolderSingleton.getContainerHolder().getContainer(); String pattern = c.getString(“pattern”);