The setChecked of Radio Button its not working
<p>I tried to setChecked(true)</p>

<pre><code>RadioButton rbOk = new RadioButton(this);
rbOk.setLayoutParams(ParamWCWC);
rbOk.setText("OK");
if(situacao.equals("ok")){
    rbOk.setChecked(true);
};
</code></pre>

<p>It's show ok, but there are 3 RadioButtons, and only one is checked, and after this one is checked, I can do nothing to disable it, even if I checked another in the same RadioGroup and the selection become duplicated.</p>
