listview实现单选功能

package com.xiaoming;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class MainActivity extends Activity {

	private static final String TAG = "WZP13_RadioGroupActivity";
	private ListView listView;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		listView = (ListView) this.findViewById(R.id.list);
		MyAdapter adapter = new MyAdapter();
		listView.setAdapter(adapter);
	}

	private class MyAdapter extends BaseAdapter {
		private String[] s = new String[] { "小天AAA", "小天BBB", "小天CCC", "小天DDD"};
		private int temp = -1;
		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			return s.length;
		}
		@Override
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			return null;
		}

		@Override
		public long getItemId(int position) {
			// TODO Auto-generated method stub
			return 0;
		}
		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			convertView = MainActivity.this.getLayoutInflater()
					.inflate(R.layout.item, null);
			Button button = (Button) convertView.findViewById(R.id.button);
			button.setText(s[position]);
			RadioButton radioButton = (RadioButton) convertView
					.findViewById(R.id.radioButton);
			radioButton.setId(position);
			radioButton
					.setOnCheckedChangeListener(new OnCheckedChangeListener() {
						@Override
						public void onCheckedChanged(CompoundButton buttonView,
								boolean isChecked) {
							if (isChecked) {
								if (temp != -1) {
									RadioButton tempButton = (RadioButton) MainActivity.this
											.findViewById(temp);
									if (tempButton != null) {
										tempButton.setChecked(false);
									}
								}
								temp = buttonView.getId();
								Log.i(TAG, "you are women- -   " + isChecked
										+ "   " + temp);
							}
						}
					});
			if (temp == position) {
				radioButton.setChecked(true);
			}
			return convertView;
		}
	}
}

布局文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试" >
    </Button>

    <RadioButton
        android:id="@+id/radioButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>

适配器不在acitivyt里面，则把activity传到适配器里面去