Android studio 单选按钮 的监听事件

nRg2.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
    @Override
    public void onCheckedChanged(RadioGroup radioGroup, int i) {
        RadioButton radioButton = radioGroup.findViewById(i);
        WarehouseType=radioButton.getText().toString();
        Toast.makeText(DiaoBoActivity.this,radioButton.getText(),Toast.LENGTH_SHORT).show();
    }
});