// customize here
ResourceConfig resourceConfig = new ResourceConfig() {
    @Override
    public int[] configImageResIds() {
        return new int[]{R.mipmap.ic_arrow, R.mipmap.ic_ok,
            R.mipmap.ic_failed, R.mipmap.ic_ok, R.mipmap.ic_failed};
        }

    @Override
    public int[] configTextResIds() {
        return new int[]{
            R.string.pull_to_refresh, R.string.release_to_refresh,
            R.string.refreshing, R.string.refresh_succeeded,
            R.string.refresh_failed, R.string.pull_up_to_load,
            R.string.release_to_load, R.string.loading,
            R.string.load_succeeded, R.string.load_failed};
        }
    };

mRefreshLayout.setResourceConfig(resourceConfig);