javascript - radio button in android - crashes if none selected -

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i use code below in android app check selected radio button in radio group, work crashes if none of radio buttons selected.

how wrap in if statement prevent app crashing?

    checkradiobuttonid =    genderrd.getcheckedradiobuttonid();// selected radio button radiogroup     checkedrbvalue =        (radiobutton) findviewbyid(checkradiobuttonid);       // find radio button returned id     radiobuttontext =       checkedrbvalue.gettext().tostring();

thanks.

sorry i'm unable compile right try:

if(checkrbvalue != null){  //enter code here.  }

hope helps. :)


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