ClassCastException when adding LayoutParams

Question

What class should I use when setting up the LayoutParams my LinearLayout ? The following two do not work:

• linLayout.setLayoutParams(new ViewGroup.LayoutParams(50,50));
• linLayout.setLayoutParams(new android.widget.LinearLayout.LayoutParams(50,50));

if I get the parameters first, change them and return their work. Therefore, I assume that the returned Params are inherited from ViewGroup.LayoutParams ...

Any idea? thanks

Answer 1

Use the parent's LayoutParams. Therefore, if your LinearLayout is a child of RelativeLayout, you use linLayout.setLayoutParams(new android.widget.RelativeLayout.LayoutParams(50,50));