RadioButton Listener inside a DialogFragment

I’ve try to implement RadioGroup view and put it inside a DialogFragment, but something gone wrong. I’ve follow this tutorial

http://developer.android.com/guide/topics/ui/controls/radiobutton.html

but instead Activity, view is initialized in a DialogFragment:

public class MenuDialog extends DialogFragment {

    public MenuDialog(){}

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.menu_layout, container);
        this.getDialog().setTitle("title");
        return view;
    }

public void onRadioButtonClicked(View view) {
    boolean checked = ((RadioButton) view).isChecked();
    switch(view.getId()) {
    case R.id.radio1:
        if(checked) {
            Log.i("MENU", ((RadioButton)view).getText());
        }
        break;
    case R.id.radio2:
        if(checked) {
            Log.i("MENU", ((RadioButton)view).getText());
        }
        break;
    case R.id.radio3:
        if(checked) {
            Log.i("MENU", ((RadioButton)view).getText());
        }
        break;
    case R.id.radio4:
        if(checked) {
            Log.i("MENU", ((RadioButton)view).getText());
        }
        break;
    }
    this.getDialog().dismiss();
}

}

xml:

<?xml version="1.0" encoding="utf-8"?>

<RadioGroup
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/radio_group" >

    <RadioButton
        android:id="@+id/radio1"
        android:text="20" />

    <RadioButton
        android:id="@+id/radio2"
        android:text="40" />

    <RadioButton
        android:id="@+id/radio3"
        android:text="60" />

    <RadioButton
        android:id="@+id/radio4"
        android:text="80" />
</RadioGroup>

onRadioButtonClicked listener it’s implemented in the same way of tutorial. Now, when launch dialog, if i tap on a radiobutton i obtain this error:

09-27 09:41:08.018: E/AndroidRuntime(7447): FATAL EXCEPTION: main
09-27 09:41:08.018: E/AndroidRuntime(7447): java.lang.IllegalStateException: Could not
 find a method onRadioButtonClicked(View) in the activity class 
android.view.ContextThemeWrapper for onClick handler on view class 
android.widget.RadioButton with id 'radio1'

What’s wrong?

Answer

I’d rather implement the click handler inside of the fragment and add the listener dynamically (via java instead of XML). So I would do something like this:

public class MenuDialog extends DialogFragment implements OnClickListener{
[...]    
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.menu_layout, container);
    view.findViewById(R.id.radio1).setOnClickListener(this);
    view.findViewById(R.id.radio2).setOnClickListener(this);
    //and so on [...]
    this.getDialog().setTitle("title");
    return view;
}

@Override
public void onClick(View v){
    [...]
}