LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT,
1.0f
);
for (int i = 0; i < ROW_COUNT; i++) {
LinearLayout ll = new LinearLayout(appContext);
ll.setOrientation(LinearLayout.HORIZONTAL);
ll.setLayoutParams(layoutParams);
someField.addView(ll);
}