如何以编程方式为单选按钮设置组？

Question

我有以下代码：

mRadioButtonEveryDay=(RadioButton)findViewById(R.id.activityNewGoalRepeatEveryDay);
mRadioButtonEveryWeek=(RadioButton)findViewById(R.id.activityNewGoalRepeatEveryWeek);
mRadioButtonEveryBiWeek=(RadioButton)findViewById(R.id.activityNewGoalRepeatEveryBiWeek);
mRadioButtonNeverRepeating=(RadioButton)findViewById(R.id.activityNewGoalNeverRepeating);

mRadioGroupRepeating=new RadioGroup(this);
mRadioGroupRepeating.clearCheck();

存在以下问题：我不知道如何将RadioButton添加到RadioGroup，因为mRadioGroupRepeating的方法“addView（）”会抛出异常，即我必须在将RadioButtons添加到RadioGroup之前删除它。有没有最简单的方法呢？