package?com.example.administrator.spinner;

import?android.content.Context;
import?android.support.v7.app.ActionBarActivity;
import?android.os.Bundle;
import?android.view.Menu;
import?android.view.MenuItem;
import?android.view.View;
import?android.widget.AdapterView;
import?android.widget.ArrayAdapter;
import?android.widget.SimpleAdapter;
import?android.widget.Spinner;
import?android.widget.TextView;
import?android.widget.Toast;

import?java.lang.reflect.Array;
import?java.util.ArrayList;
import?java.util.HashMap;
import?java.util.List;
import?java.util.Map;
import?java.util.HashMap;


public?class?MainActivity?extends?ActionBarActivity?implements?Spinner.OnItemSelectedListener{
????private?TextView?textView;
????private?Spinner?spinner;
????private?List?data;
????private?List<Map>?data_list;

????private?Context?mContext;
????@Override
????protected?void?onCreate(Bundle?savedInstanceState)?{
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.activity_main);

????????mContext?=?this;
????????textView?=?(TextView)findViewById(R.id.text);
????????spinner?=?(Spinner)findViewById(R.id.spinner);

????????//1?數(shù)據(jù)源
????????data?=?new?ArrayList();
????????data.add("北京");
????????data.add("上海");
????????data.add("廣州");
????????data.add("重慶");

????????data_list?=?new?ArrayList<Map>();
????????//2?適配器
????????ArrayAdapter?adapter?=?new?ArrayAdapter(this,android.R.layout.simple_list_item_1,data);
????????SimpleAdapter?s_adapter?=?new?SimpleAdapter(this,getData(),R.layout.item,new?String[]{"text","pic"},new?int[]{R.id.text,R.id.pic});

????????//3?適配器樣式
????????//adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
????????adapter.setDropDownViewResource(R.layout.item);

????????//4?注入適配器
???????//?spinner.setAdapter(adapter);
????????spinner.setAdapter(s_adapter);
????????spinner.setOnItemSelectedListener(this);
????}

????@Override
????public?void?onItemSelected(AdapterView?parent,?View?view,?int?position,?long?id)?{
????????textView.setText(spinner.getItemAtPosition(position).toString());
????}

????@Override
????public?void?onNothingSelected(AdapterView?parent)?{
????????Toast.makeText(mContext,"NotingSelected",Toast.LENGTH_SHORT);
????}

????private?List<Map>?getData(){
????????Mapmap?=?new?HashMap();
????????map.put("text","上海");
????????map.put("pic",R.mipmap.ic_launcher);
????????data_list.add(map);

????????map?=?new?HashMap();
????????map.put("text","北京");
????????map.put("pic",R.mipmap.ic_launcher);
????????data_list.add(map);

????????map?=?new?HashMap();
????????map.put("text","深圳");
????????map.put("pic",R.mipmap.ic_launcher);
????????data_list.add(map);

????????map?=?new?HashMap();
????????map.put("text","廣州");
????????map.put("pic",R.mipmap.ic_launcher);
????????data_list.add(map);

????????return?data_list;
????}
}

item.xml