java - I am unable to uncheck radio buttons in listview -

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public view getview(final int position, view convertview, viewgroup parent) { 

            final constructor row = buttonlist.get(position);             layoutinflater inflater = layoutinflater.from( context );             view v = inflater.inflate( r.layout.breakfastitems_view, parent, false );             relativelayout relative1 = (relativelayout)v.findviewbyid(r.id.relative1);             final radiobutton chbox=(radiobutton)v.findviewbyid(r.id.rb1);             final radiobutton rb2=(radiobutton)v.findviewbyid(r.id.rb2);             chbox.setonclicklistener(new view.onclicklistener(){             public void onclick(view v) {                 radiobutton chbox = (radiobutton)v;                 if(chbox.ischecked()){                     boolean value=false;                     rb2.setchecked(value);                  rb3.setchecked(false);                 rb4.setchecked(false);                 rb5.setchecked(false);                 rb6.setchecked(false);                 }                 selected_total.set(position, selected_cost.get(position));                 selectprice.settext(selected_total.get(position));             }          });         rb2.setonclicklistener(new view.onclicklistener(){             public void onclick(view v) {                 if(position==1){                 chbox.setchecked(false);                 rb3.setchecked(false);                 rb4.setchecked(false);                 rb5.setchecked(false);                 rb6.setchecked(false);                 }                 selected_total.set(position, selected_cost.get(position));                 selectprice.settext(selected_total.get(position));             }          });

here xml file code, 

  <?xml version="1.0" encoding="utf-8"?>     <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"      android:layout_width="match_parent"        android:layout_height="match_parent"           android:orientation="vertical" >     <relativelayout     android:id="@+id/relative1"     android:layout_width="match_parent"      android:layout_height="60dp">     <textview android:id="@+id/item"        android:layout_width="fill_parent"           android:layout_height="50dp"        android:gravity="center_vertical"        android:text="textview"        android:textcolor="#000000"        android:textsize="16dp"/>     <textview android:id="@+id/price_text"           android:layout_width="70dp"            android:layout_height="wrap_content"            android:layout_alignbaseline="@+id/item"           android:layout_alignbottom="@+id/item"            android:layout_alignparentright="true"            android:gravity="center"          android:text="$3.20"           android:textcolor="#000000"/>     <radiobutton android:id="@+id/rb1"         android:layout_width="40dp"        android:layout_height="40dp"       android:layout_alignbaseline="@+id/item"      android:layout_alignbottom="@+id/item"       android:layout_toleftof="@+id/price_text"/>     </relativelayout>    <relativelayout     android:id="@+id/relative2"     android:layout_width="match_parent"     android:layout_height="60dp" >      <textview         android:id="@+id/item2"         android:layout_width="fill_parent"         android:layout_height="50dp"         android:gravity="center_vertical"         android:text="textview"         android:textcolor="#000000"         android:textsize="16dp" />      <textview         android:id="@+id/price_text2"         android:layout_width="70dp"         android:layout_height="wrap_content"         android:layout_alignbaseline="@+id/rb2"         android:layout_alignbottom="@+id/rb2"         android:layout_alignparentright="true"         android:gravity="center"         android:text="$3.20"         android:textcolor="#000000" />      <radiobutton         android:id="@+id/rb2"         android:layout_width="40dp"         android:layout_height="40dp"         android:layout_alignparenttop="true"         android:layout_toleftof="@+id/price_text2" />          </relativelayout>     </linearlayout>

i unable uncheck radio buttons. have posted java code , xml code.thanks in advance.

do not try checked , unchecked radiobutton pragmatically ...just put radio button in 1 radiogroup in xml row layout file.

  <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:orientation="vertical"             android:padding="@dimen/marginten" >              <radiogroup                 android:id="@+id/radiogroup1"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content" >                  <radiobutton                     android:id="@+id/radiobutton1"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="radiobutton" />                  <radiobutton                     android:id="@+id/radiobutton2"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="radiobutton" />                  <radiobutton                     android:id="@+id/radiobutton3"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="radiobutton" />             </radiogroup>         </linearlayout>

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