/**
* Drag a child over the specified position
*
* @param child The child that is being dropped
* @param cellX The child's new x cell location
* @param cellY The child's new y cell location
*/
void onDragOverChild(View child, int cellX, int cellY) {
int[] cellXY = mCellXY;
pointToCellRounded(cellX, cellY, cellXY);
LayoutParams lp = (LayoutParams) child.getLayoutParams();
cellToRect(cellXY[0], cellXY[1], lp.cellHSpan, lp.cellVSpan, mDragRect);
invalidate();
}
