Why onCheckedChanged() for RadioButton doesn't get raised in android?

Question

I have a Fragment. There are two radio buttons in it. I am trying to create a TextView in this fragment and change its content according to the RadioButton user checks. Below you can see my code. My problem is that when I click on radio buttons nothing happens/ Not the toast message nor the setText() seem to be called. Please help me out. Thanks before.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    final View rootView = inflater.inflate(R.layout.activity_search, container,false);
    final LinearLayout l = (LinearLayout)inflater.inflate(R.layout.activity_search, container, false);
    final TextView tv = new TextView(container.getContext());
    tv.setText("Testing...");
    l.addView(tv);
    RadioGroup radios = (RadioGroup) rootView.findViewById(R.id.radios);
    radios.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            tv.setText("changedText");
            l.addView(tv);
            Toast.makeText(getActivity(), "zzzz", 2000).show(); 

            switch(checkedId) {
            case R.id.rbtn_sell:
                tv.setText("changedText");
                l.addView(tv);
                break;
            case R.id.rbtn_rent:
                RadioButton radioButton = (RadioButton) rootView.findViewById(checkedId);
                Toast.makeText(getActivity(), "zzzz" + radioButton.getText(), 2000).show(); 
                break;
            }
        }
    });
    return l;
}

Answer 1

  final View rootView = inflater.inflate(R.layout.activity_search, container,false);
  final LinearLayout l = (LinearLayout)inflater.inflate(R.layout.activity_search, container, false);

the problem is here. You are inflating twice the same layout and returnin l, but attach the OnCheckedChangeListener on the RadioGroup you retrieve with rootView. It should be

 RadioGroup radios = (RadioGroup) l.findViewById(R.id.radios);

instead of

 RadioGroup radios = (RadioGroup) rootView.findViewById(R.id.radios);

Also inside onCheckedChanged you should remove l.addView otherwise you application wil crash because the TextView has already as parent l