@Override
public Parcelable onSaveInstanceState() {
ListSavedState listState = (ListSavedState) super.onSaveInstanceState();
GridListSavedState ss = new GridListSavedState(listState.getSuperState());
// from the list state
ss.selectedId = listState.selectedId;
ss.firstId = listState.firstId;
ss.viewTop = listState.viewTop;
ss.position = listState.position;
ss.height = listState.height;
// our state
boolean haveChildren = getChildCount() > 0 && getCount() > 0;
if (haveChildren && mFirstPosition > 0) {
ss.columnCount = mColumnCount;
ss.columnTops = mColumnTops;
ss.positionData = mPositionData;
} else {
ss.columnCount = mColumnCount >= 0 ? mColumnCount : 0;
ss.columnTops = new int[ss.columnCount];
ss.positionData = new SparseArray<Object>();
}
return ss;
}
@SuppressWarnings("unchecked")
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(columnCount);
out.writeIntArray(columnTops);
out.writeSparseArray(positionData);
}
