RadioGroup按键监控的一种写法

TextView tv = null;//根据不同选项所要变更的文本控件    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);                setContentView(R.layout.main);                //根据ID找到该文本控件        tv = (TextView)this.findViewById(R.id.tvSex);        //根据ID找到RadioGroup实例        RadioGroup group = (RadioGroup)this.findViewById(R.id.radioGroup);        //绑定一个匿名监听器        group.setOnCheckedChangeListener(new OnCheckedChangeListener() {                        @Override            public void onCheckedChanged(RadioGroup arg0, int arg1) {                // TODO Auto-generated method stub                //获取变更后的选中项的ID                int radioButtonId = arg0.getCheckedRadioButtonId();                //根据ID获取RadioButton的实例                RadioButton rb = (RadioButton)MyActiviy.this.findViewById(radioButtonId);                //更新文本内容，以符合选中项                tv.setText("您的性别是：" + rb.getText());            }        });    }<span style="white-space:pre"></span>