gistfile1.java

    private void seteGridviewHeight(GridView gridView, float itemCount,float numColumn) {
        int row = (int) Math.ceil((itemCount + 1f) / numColumn);
        Log.d("debug", "-------row = " + row);
        int height = (imageHeight * row);  // imageHeight = ความสูงของแต่ละแถวหรือความสูงของรูป
        height += (row - 1) * verticalSpacing;
        gridView.getLayoutParams().height = height;
    }