关于获取RadioGroup里面的RadioButton的值，多行RadioGroup展示清除选中效果

源代码地址：http://download.csdn.net/download/wb935419471/9911736
RadioGroup实现单选并获得所选项值：
代码片段：

public class MainActivity extends Activity {
public TextView mTextView1;
public RadioGroup mRadioGroup1,mRadioGroup2;
public RadioButton mRadio1, mRadio2,mRadio3,mRadio4;
public Button submit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 取得 TextView、RadioGroup、RadioButton对象
mTextView1 = (TextView) findViewById(R.id.myTextView);
submit = (Button) findViewById(R.id.submit);
mRadioGroup1 = (RadioGroup) findViewById(R.id.myRadioGroup);
mRadio1 = (RadioButton) findViewById(R.id.myRadioButton1);
mRadio2 = (RadioButton) findViewById(R.id.myRadioButton2);
mRadioGroup2 = (RadioGroup) findViewById(R.id.myRadioGroup2);
mRadio3 = (RadioButton) findViewById(R.id.myRadioButton3);
mRadio4 = (RadioButton) findViewById(R.id.myRadioButton4);
submit.setOnClickListener(new OnClickListener() {

        @Override        public void onClick(View arg0) {            if(mTextView1.getText().toString().equals("")){                  Toast toast = Toast.makeText(MainActivity.this, "mTextView1为空"+mTextView1.getText().toString(), Toast.LENGTH_SHORT);                                        toast.show();                            }else{                  Toast toast = Toast.makeText(MainActivity.this, "mTextView1选中的值为:"+mTextView1.getText().toString(), Toast.LENGTH_SHORT);                                        toast.show();             }        }    });    mRadioGroup1.setOnCheckedChangeListener(new OnMyManholeStateOneCheckedChangeListener());    mRadioGroup2.setOnCheckedChangeListener(new OnMyManholeStateTwoCheckedChangeListener());}private class OnMyManholeStateOneCheckedChangeListener implements        RadioGroup.OnCheckedChangeListener {    @Override    public void onCheckedChanged(RadioGroup radioGroup, int position) {        switch (position) {        case R.id.myRadioButton1:            if (mRadio1.isChecked())                mRadioGroup2.clearCheck();//清除RadioGroup2的选中状态              mTextView1.setText(mRadio1.getText());            break;        case R.id.myRadioButton2:            if (mRadio2.isChecked())                mRadioGroup2.clearCheck();             mTextView1.setText(mRadio2.getText());            break;        default:            break;        }    }}private class OnMyManholeStateTwoCheckedChangeListener implements        RadioGroup.OnCheckedChangeListener {    @Override    public void onCheckedChanged(RadioGroup radioGroup, int position) {        switch (position) {        case R.id.myRadioButton3:            if (mRadio3.isChecked())                mRadioGroup1.clearCheck();//清除RadioGroup1的选中状态             mTextView1.setText(mRadio3.getText());            break;        case R.id.myRadioButton4:            if (mRadio4.isChecked())                mRadioGroup1.clearCheck();             mTextView1.setText(mRadio4.getText());            break;        default:            break;        }    }}

}

xml布局：