Android: Adding a view in onDraw() method calls it repeatedly

Question

I am creating an Android application. I want that when my Parent is ready to be drawn, it collects its children's views from a function. I am doing it because my children's views are being refreshed dynamically. On each refresh, I am invalidating my Parent's layout.

class Parent extends RelativeLayout
{
    protected void onDraw(Canvas c)
    {
        View view = getComposeView();
        // create layoutparams depending upon scroll/zoom level of parent
        addView(view, layoutparams);
    }

}

// In some other class
View getComposeView()
{
     //
     return view;
}

void refreshViews(View newView)
{
    setComposeView(newView);
    getParent().invalidate();
}

I observed that calling addView in the onDraw method triggers onDraw repeatedly. Is there a way I can add my view to Parent in its onDraw method? The reason I wanted to add it in onDraw is because when I scroll/zoom my Parent, it automatically calculates updated layout parameters of my child view in its onDraw method