本地数据下，radiobutton和图片组合，利用adapter+listview进行单选

浮生偷得半日闲，等接口定义的过程中，重新复习下adapter+listview实现单选的方法

主界面

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.locallistviewradiobutton.MainActivity" >

    <ListView
        android:id="@+id/lv_radiobutton"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:divider="@null">
        
    </ListView>

</RelativeLayout>

activity_listview.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"            
    android:gravity="center"      
    android:orientation="vertical" >
    
    <LinearLayout 
        android:id="@+id/ll_rg"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" 
    android:background="#C6C6C6">
    
    <RadioButton
        android:id="@+id/rb_select"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:focusable="false"/>
              
    <TextView
        android:id="@+id/tv_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="name"
        android:textSize="20sp"/>
                            
    <ImageView
          android:id="@+id/iv_card"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:scaleType="centerInside"
          android:layout_marginLeft="20dp"
          android:layout_marginRight="20dp"
          android:layout_marginTop="2dp"
          android:layout_marginBottom="2dp"
          android:layout_gravity="left"
          android:adjustViewBounds="true"
          android:src="@drawable/ic_launcher" />
    
    </LinearLayout>
    
    <View
        android:layout_width="fill_parent"
        android:layout_height="10dp"
        android:background="#ffffff" />

</LinearLayout>

MainActivity.java

package com.example.locallistviewradiobutton;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.AdapterView.OnItemClickListener;


public class MainActivity extends Activity {
    private ListView lv_radiobutton;
    private RBlistAdapter adapter;
    private String[] names = new String[] { "a","b","c","d","e" };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        lv_radiobutton = (ListView) findViewById(R.id.lv_radiobutton);
        adapter = new RBlistAdapter(this, names);
        lv_radiobutton.setAdapter(adapter);
        
        //点击一行任意位置都能保证radiobutton选中
        lv_radiobutton.setOnItemClickListener(new myOnItemClickListener());
        
    }
    
    private class myOnItemClickListener implements OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            adapter.index = position;//获取位置并传给adapter中的index（public变量）
            adapter.notifyDataSetChanged();
        }
    }
    public void onBackPressed() {
        // TODO Auto-generated method stub
        super.onBackPressed();
    }

}

RBlistAdapter.java

package com.example.locallistviewradiobutton;

import android.widget.BaseAdapter;
import android.annotation.SuppressLint;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.Toast;

public class RBlistAdapter extends BaseAdapter{
    private LayoutInflater inflater;
    private String[] picspecies;
    private viewHolder holder;
    // 标记用户当前选择的那一个,默认为第一个:（0）
    public int index = 0;
    private Context c;

    public RBlistAdapter(Context c, String[] picspecies) {
        super();
        this.c = c;
        this.picspecies = picspecies;
        inflater = LayoutInflater.from(c);
    }

    @Override
    public int getCount() {
        return picspecies.length;
    }
    
    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @SuppressLint("InflateParams") @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        
        holder = new viewHolder();
        if (convertView == null) {
            convertView = inflater.inflate(R.layout.activity_listview, null);
            holder.nameTxt = (TextView) convertView.findViewById(R.id.tv_name);
            holder.selectBtn = (RadioButton) convertView.findViewById(R.id.rb_select);
            convertView.setTag(holder);
        } else {
            holder = (viewHolder) convertView.getTag();
        }

        holder.nameTxt.setText(picspecies[position]);
        holder.selectBtn
                .setOnCheckedChangeListener(new OnCheckedChangeListener() {

                    @Override
                    public void onCheckedChanged(CompoundButton buttonView,
                            boolean isChecked) {
                        if (isChecked) {
                            Toast.makeText(c, "您选择的是：" + picspecies[position],
                                    Toast.LENGTH_SHORT).show();
                            index = position;
                            notifyDataSetChanged();
                        }
                    }
                });

        if (index == position) {// 选中的条目和当前的条目是否相等
            holder.selectBtn.setChecked(true);
        } else {
            holder.selectBtn.setChecked(false);
        }
        return convertView;
    }

    public class viewHolder {
        public TextView nameTxt;
        public RadioButton selectBtn;
    }

}

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