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can someone give me an example how to use this radiogroup code? android

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linux-howto

http://stackoverflow.com – actually it's the second line I'm not too sure how this indexOfChild work RadioGroup rg = (RadioGroup)findViewById(R.id.radioGroup1); int rbIndex = rg.indexOfChild(findViewById(rg.getCheckedRadioButtonId()) ); Sorry if this is a dumb question. (HowTos)