Android控件RadioButton实现多选一功能

public void onClick(View v) {
    // TODO Auto-generated method stub
    int len = radioGroup1.getChildCount();
    for (int i = 0; i 

 if (radio.isChecked()) {

      break;
     } 

Toast.makeText(Activity01.this, radio.getText(),
        Toast.LENGTH_LONG).show();

package fry;

import com.example.RadioButtonDemo1.R;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

public class Activity01 extends Activity {
 private Button btn_chooseGender;
 private RadioGroup radioGroup1;
 private TextView tv_answer;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity01);

  btn_chooseGender = (Button) findViewById(R.id.btn_chooseGender);
  radioGroup1 = (RadioGroup) findViewById(R.id.radioGroup1);
  tv_answer = (TextView) findViewById(R.id.tv_answer);
  /*
   * RadioButton实现多选一方法
   * 1、将多个RadioButton放在一个RadioGroup里面
   * 2、在RadioGroup里面取出每个RadioButton 
   * 3、检查每个RadioButton是否被选取
   * 4、取出被选取的那个RadioButton里面的值
   */
  btn_chooseGender.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    int len = radioGroup1.getChildCount();
    for (int i = 0; i 

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