How to set only one RadioButton Can be selected at the time in RadioGroup

Question

I've created a radio button in radiogroup, but when I try running the apps all radio button can be selected all the time, and how to set only one radiobutton can be selected at one time?

I'm using Fragment

RadioGroup radioGroup = (RadioGroup) rootView.findViewById(R.id.RGroup);         radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {              @Override             public void onCheckedChanged(RadioGroup group, int checkedId) {                 // find which radio button is selected                 if(checkedId == R.id.Abdominal) {                     Toast.makeText(getActivity().getApplicationContext(), "choice: A",                             Toast.LENGTH_SHORT).show();                 } else if(checkedId == R.id.Arm) {                     Toast.makeText(getActivity().getApplicationContext(), "choice: B",                             Toast.LENGTH_SHORT).show();                 } else if(checkedId == R.id.Back){                     Toast.makeText(getActivity().getApplicationContext(), "choice: C",                             Toast.LENGTH_SHORT).show();                 } else if(checkedId == R.id.Chest){                     Toast.makeText(getActivity().getApplicationContext(), "choice: D",                             Toast.LENGTH_SHORT).show();                 } else if(checkedId == R.id.Leg){                     Toast.makeText(getActivity().getApplicationContext(), "choice: E",                             Toast.LENGTH_SHORT).show();                 } else if(checkedId == R.id.Shoulder){                     Toast.makeText(getActivity().getApplicationContext(), "choice: F",                             Toast.LENGTH_SHORT).show();                 }             }          }); 

here my xml code for RG and RB

<RadioGroup                     android:layout_width="wrap_content"                     android:layout_height="wrap_content"                     android:id="@+id/RGroup">                      <TableRow android:weightSum="1">                     <RadioButton                         android:layout_width="wrap_content"                         android:layout_height="wrap_content"                         android:text="Abdominal"                         android:id="@+id/Abdominal"/>                     <RadioButton                         android:layout_width="wrap_content"                         android:layout_height="wrap_content"                         android:text="Arm"                         android:id="@+id/Arm"/>                     <RadioButton                         android:layout_width="wrap_content"                         android:layout_height="wrap_content"                         android:text="Back"                         android:id="@+id/Back" />                         </TableRow>                     <TableRow>                         <RadioButton                             android:layout_width="wrap_content"                             android:layout_height="wrap_content"                             android:text="Chest"                             android:id="@+id/Chest"/>                         <RadioButton                             android:layout_width="wrap_content"                             android:layout_height="wrap_content"                             android:text="Leg"                             android:id="@+id/Leg"/>                         <RadioButton                             android:layout_width="wrap_content"                             android:layout_height="wrap_content"                             android:text="Shoulder"                             android:id="@+id/Shoulder"/>                     </TableRow>                 </RadioGroup> 

EDITED 1 : Answer : If you dont want radio button can be selected in one time, so dont use Tablerow

Answer 1

It's not working because of TableRow inside RadioGroup. All RadioButtons are not grouped together because of TableRow between them.

RadioButton should be the direct child of RadioGroup, Otherwise grouping does not work.

Just change your code like this it will work :

        <RadioGroup             android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:id="@+id/RGroup">              <RadioButton                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="Abdominal"                 android:id="@+id/Abdominal"/>             <RadioButton                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="Arm"                 android:id="@+id/Arm"/>             <RadioButton                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="Back"                 android:id="@+id/Back" />                                                      <RadioButton                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="Chest"                 android:id="@+id/Chest"/>             <RadioButton                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="Leg"                 android:id="@+id/Leg"/>             <RadioButton                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:text="Shoulder"                 android:id="@+id/Shoulder"/>          </RadioGroup> 

Hope this helps. :)