The background turns to be black, when adding a header

[alpha-bee]

I add a header in MultiColumnListView, then the list turns to be black.
The code below is what I add in SampleActivity.java:
View headerView = View.inflate(context, R.layout.listview_header, null);
listView.addHeaderView(headerView);
mAdapter = new PLAAdapter(getActivity());

[snowjade]

I meet the issue , too.

[twisty1988]

I meet the issue , too.

[ninace]

자답 입니다.
this is my answer

It is point -> pla:plaContentBackground="#F1F4F5"

<com.huewu.pla.lib.MultiColumnListView
    xmlns:pla="http://schemas.android.com/apk/res-auto"
    android:id="@+id/mMallListView"
    android:layout_width="match_parent" 
    android:layout_height="match_parent"
    android:layout_below="@+id/mActionbar"
    android:scrollbarSize="3dp"
    android:visibility="visible"
    pla:plaColumnNumber="3"
    pla:plaContentBackground="#F1F4F5"
    pla:plaLandscapeColumnNumber="3" >
</com.huewu.pla.lib.MultiColumnListView>