Android: How to make RadioGroup work correctly in a ListView?

Question

I have a ListView, which has a TextView and a RadioGroup with 4 RadioButtons as Children in each row. Now i can select a RadioButton in each row. But if i scroll the ListVi

Answer 1

When getView() (or bindView() if you are using a CursorAdapter) is called on your adapter, you need to set the state of the RadioGroup. Android recycles rows and is not going to track those RadioGroup states for you.

See here for a sample project that has a RatingBar in a row for the general technique. This is also covered in this free excerpt from one my books.