how radio group working android code example
Example 1: how to get data from radio group in android
// get selected radio button from radioGroup
int selectedId = radioGroup.getCheckedRadioButtonId();
// find the radiobutton by returned id
radioButton = (RadioButton) findViewById(selectedId);
Toast.makeText(MyAndroidAppActivity.this,
radioButton.getText(), Toast.LENGTH_SHORT).show();
Example 2: android studio radio group horizontal
<RadioGroup
android:id="@+id/radioG"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation='horizontal'>