android: ListVew with Radio button setOnCheckedChangeListener() with setViewBinder()

SimpleAdatper adapter;

adapter.setViewBinder(new SimpleAdapter.ViewBinder() {
            @Override
            public boolean setViewValue(View view, final Object data, String textRepresentation){
                if (view.getId() == R.id.langtext) {
                    RadioButton b=(RadioButton) view;
                    b.setText((String)data);
                    b.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton cb,
boolean isChecked) {
if (cb.isChecked()) {

Toast.makeText(
EditItemActivity.this,
"checked "
+ (String)data,
Toast.LENGTH_SHORT).show();

}
}
});
                    return true;
               }
                return false;
            }
}
);