Spinner下拉列表控件

xml代码：

<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>


另外一个布局文件：
<?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代码：
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("广州");
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;
}
}