android - add radio buttons inside LinearLayout to a RadioGroup -

i have 4 radio buttons want group in radio group , display each 2 of them in row, used linearlayout radio buttons inside seem ignore inside radiogroup( wan select more 1 radio button).

<radiogroup     android:id="@+id/radiogroup1"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparentleft="true"     android:layout_alignright="@+id/linearlayout1"     android:layout_below="@+id/linearlayout1" >      <linearlayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:orientation="vertical" >          <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content" >              <radiobutton                 android:id="@+id/radio1"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="radiobutton" />              <radiobutton                 android:id="@+id/radio2"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="radiobutton" />         </linearlayout>          <linearlayout             android:layout_width="match_parent"             android:layout_height="wrap_content" >              <radiobutton                 android:id="@+id/radio3"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="radiobutton" />              <radiobutton                 android:id="@+id/radio4"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="radiobutton" />         </linearlayout>     </linearlayout>  </radiogroup> 

so there way that?

you not able have multyply selection in radiogroup , can use checkboxes or should not using radiogroup