android 应用之listview添加radiobutton，获取textView

程序效果：

点击一整行，更换radiobutton选择。

xml代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layout"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
   <TextView  android:id="@+id/list_text"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_centerVertical="true"
    />
   <ImageView android:id="@+id/list_radioImg"
   	android:layout_width="wrap_content"
   	android:layout_height="wrap_content"
   	android:layout_alignParentRight="true"/>
</RelativeLayout>

java代码：

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class listRadioBtn extends ListActivity {
    /** Called when the activity is first created. */
	private int balanceIndex = 0;
	SimpleAdapter adapter;
	List<Map<String, Object>> list;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        adapter= new SimpleAdapter(this,getData(),R.layout.main,new String[]{"text","img"},new int[]{R.id.list_text,R.id.list_radioImg}); 
        
        setListAdapter(adapter);
    }
        
        private List<Map<String, Object>> getData(){
        	 list = new ArrayList<Map<String, Object>>();
        	Map<String, Object> map_day = new HashMap<String, Object>(); 
        	map_day.put("text", "白天");  
        	map_day.put("img", R.drawable.setlist_radio_on);         	
        	list.add(map_day);
        	
        	Map<String, Object> map_clody = new HashMap<String, Object>(); 
        	map_clody.put("text", "阴天");  
        	map_clody.put("img", R.drawable.setlist_radio_off);         	
        	list.add(map_clody); 
        	
        	Map<String, Object> map_clo = new HashMap<String, Object>(); 
        	map_clo.put("text", "微风");  
        	map_clo.put("img", R.drawable.setlist_radio_off);         	
        	list.add(map_clo); 
        	
        	return list;
        }
        
        protected void onListItemClick(ListView arg0, View arg1, int arg2, long arg3) {
         Toast t = Toast.makeText(this, ""+list.get(arg2).get("text"), Toast.LENGTH_LONG);
         t.show();
          
        	 ChangeRadioImg(balanceIndex,false);
        	 ChangeRadioImg(arg2,true);
        	 balanceIndex=arg2;   
        	 
        	 list.get(arg2).get("text");
         }
        
		private void ChangeRadioImg(int selectedItem, boolean b) {
			SimpleAdapter la = adapter;	
	        HashMap<String, Object> map = (HashMap<String, Object>)la.getItem(selectedItem);  
	        if(b)
	        	map.put("img", R.drawable.setlist_radio_on);
	        else
	        	map.put("img", R.drawable.setlist_radio_off);
	       la.notifyDataSetChanged();
			
		}
       
}

二

另一个简单办法：

android系统中，提供了这样的方法

mylist.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

程序主代码：

protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.list_layout);
		contentString = new String[] { 
				"示例", "透明动画",
				"伸缩动画", "移动动画",
				"旋转动画", "透明_伸缩",
				"透明_移动", "透明_旋转"
				
	};
		arrayAdapter = new ArrayAdapter<String>(this,
				android.R.layout.simple_list_item_single_choice,
				contentString);
		mylist = (ListView) findViewById(R.id.ListView01);
		mylist.setAdapter(arrayAdapter);
		mylist.setOnItemClickListener(this);
		mylist.setOnItemSelectedListener(this);
		mylist.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
		mylist.setItemChecked(0, true);
	}

其中，android.R.layout.simple_list_item_single_choice在framework/base/core/res/res/layout目录下，可参见源码

三 多选框

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class ListCheckbox extends Activity implements OnItemClickListener,OnItemSelectedListener{
    private String contentString[];
    ArrayAdapter arrayAdapter;
    ListView mylist;
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		contentString = new String[] { 
				"示例", "透明动画",
				"伸缩动画", "移动动画",
				"旋转动画", "透明_伸缩",
				"透明_移动", "透明_旋转"
				
	};
		arrayAdapter = new ArrayAdapter<String>(this,
				android.R.layout.simple_list_item_multiple_choice,//.simple_list_item_single_choice,
				contentString);
		mylist = (ListView) findViewById(R.id.ListView01);
		mylist.setAdapter(arrayAdapter);
		mylist.setOnItemClickListener(this);
		mylist.setOnItemSelectedListener(this);
		mylist.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);//.CHOICE_MODE_SINGLE);
		mylist.setItemChecked(0, true);
	}
	public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
		mylist.setItemChecked(arg2, true);
		
	}
	public void onNothingSelected(AdapterView<?> arg0) {
		// TODO Auto-generated method stub
		
	}
	public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
		// TODO Auto-generated method stub
		
	}    
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<ListView android:id="@+id/ListView01" 
android:layout_width="fill_parent"
 android:layout_height="fill_parent"/>
</LinearLayout>