Spinner下拉列表控件

xml代碼：

<LinearLayout 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:orientation="vertical"
    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.spinner.MainActivity$PlaceholderFragment" >

    <Spinner
        android:layout_width="match_parent"
        android:id="@+id/spinner"
        android:layout_height="wrap_content"
         />

    <Spinner
        android:layout_width="match_parent"
        android:id="@+id/spinner2"
        android:layout_height="wrap_content"
         />
</LinearLayout>

另外一個佈局文件：

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

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="80dp"
        android:layout_height="80dp" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center"
        android:paddingLeft="10dp"
        android:textSize="20dp" />

</LinearLayout>

java代碼：

package com.example.spinner;

import java.util.List;
import java.util.Map;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.os.Build;

public class MainActivity extends ActionBarActivity {
	private Spinner spinner,spinner2;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.fragment_main);
		spinner=(Spinner) findViewById(R.id.spinner);
		spinner2=(Spinner) findViewById(R.id.spinner2);
		List<String> list=MyAdapter.getDate();
		ArrayAdapter adapter=new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_spinner_dropdown_item, list);
		spinner.setAdapter(adapter);
		String[] from=new String[]{"picture","pictureName"};
		int[] to={R.id.imageView,R.id.textView};
		List<Map<String,Object>> data=MyAdapter.getListMap();
		SimpleAdapter simpleAdapter=new SimpleAdapter(MainActivity.this, data, R.layout.item_main, from, to);
		spinner2.setAdapter(simpleAdapter);
		
		spinner2.setOnItemSelectedListener(new OnItemSelectedListener() {

			@Override
			public void onItemSelected(AdapterView<?> parent, View view,
					int position, long id) {
				// TODO Auto-generated method stub
				String picturName=((Map<String,Object>)spinner2.getItemAtPosition(position)).get("pictureName").toString();
				setTitle(picturName);
				
			}

			@Override
			public void onNothingSelected(AdapterView<?> parent) {
				// TODO Auto-generated method stub
				
			}
		});
		
		
		
	}


}

package com.example.spinner;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MyAdapter {

	public MyAdapter() {
		// TODO Auto-generated constructor stub
	}
	
	public static List<String> getDate(){
		List<String> list=new ArrayList<String>();
		list.add("北京");
		list.add("上海");
		list.add("廣州");
		return list;
	}
	
	public static List<Map<String,Object>> getListMap(){
		List<Map<String,Object>> list=new ArrayList<Map<String,Object>>();
		Map map1=new HashMap<String, Object>();
		map1.put("picture", R.drawable.superman);
		map1.put("pictureName", "superman");
		
		Map map2=new HashMap<String, Object>();
		map2.put("picture", R.drawable.face4);
		map2.put("pictureName", "qq表情");
		
		list.add(map1);
		list.add(map2);
		return list;
	}
}