android - RadioButton does not switch from "true" to "false" -


i have problem radiobutton declerate in activity_main.xml:

<radiobutton     android:id="@+id/radiobutton01"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignbaseline="@+id/radiobutton00"     android:layout_alignbottom="@+id/radiobutton00"             android:layout_marginleft="9dp"     android:layout_torightof="@+id/radiobutton00" />  <radiobutton     android:id="@+id/radiobutton02"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignbaseline="@+id/radiobutton01"     android:layout_alignbottom="@+id/radiobutton01"     android:layout_marginleft="7dp"     android:layout_torightof="@+id/radiobutton01" />

some of radiobuttons set programaticly "true". user should have right make "false" if clicks on it. @ moment doesn't. if click on it, still true , not switch false. 

public class mainactivity extends activity {      private radiobutton rb1, rb2;     int[][] rbtrue = new int[3][16];      @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);             rb1 = (radiobutton) findviewbyid(r.id.radiobutton00);      rb2 = (radiobutton) findviewbyid(r.id.radiobutton01);      }      public void setradiobuttons()     {         steine sander = new steine();         sander.setsteine();         rbtrue = sander.getsteine();            if(rbtrue[0][0] == 1)             rb1.setchecked(true);                if(rbtrue[0][1] == 1)             rb2.setchecked(true);      }

so it's pretty easy. gonna give array , check if it's 1 or not. if radiobutton switching true. user need switch false. @ moment it's not possible.

                <radiogroup                 android:id="@+id/radio_group"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:orientation="horizontal" >                  <radiobutton                     android:id="@+id/radiobutton01"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:text="...."                     android:textsize="15sp" />                  <radiobutton                     android:id="@+id/radiobutton02"                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                      android:text="....."                     android:textsize="15sp" />             </radiogroup>

then inside activity,,,

    radiogroup rggroup=(radiogroup)findviewbyid(r.id.radio_group);                 int selectedid = rggroup.getcheckedradiobuttonid();             radiobutton rbtn1 =(radiobutton)findviewbyid(selectedid);             toast.maketext(myandroidappactivity.this,             rbtn1.gettext(), toast.length_short).show();

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