下拉城市

package com.uumap.MapInterface;

import android.app.Activity;
import android.os.Bundle;
import android.os.Message;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;

import com.uumap.Entity.Province;
import com.uumap.Entity.city;
import com.uumap.adapter.CityAdapter;
import com.uumap.mapview.Map;
import com.uumap.util.CacheTools;

public class ChangeCityActivity extends Activity
{
ListView cityLv;
Spinner proSpinner;
TextView cityNameTv;
boolean isInit = true;
int proIndex = 0;

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
this.setContentView(R.layout.change_city);

cityNameTv = (TextView) findViewById(R.id.cityName);
cityNameTv.setText(getResources().getString(R.string.curr_city)
+ mapIndex.cityName);

isInit = true;
proIndex = this.getIntent().getExtras().getInt("index");
cityLv = (ListView) findViewById(R.id.cityList);
CityAdapter ca = new CityAdapter(this, CacheTools.proList.get(proIndex)
.getCityList());
cityLv.setAdapter(ca);
cityLv.setOnItemClickListener(changeCity);

proSpinner = (Spinner) findViewById(R.id.switch_pro);
ArrayAdapter<String> proAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, this.getProNames());
proAdapter.setDropDownViewResource(R.layout.province_item);
proSpinner.setAdapter(proAdapter);
proSpinner.setSelection(proIndex);
proSpinner.setOnItemSelectedListener(changePro);

Map.tmDiv.removeAllViews();

}

public String[] getProNames()
{
String[] proNames = new String[CacheTools.proList.size()];
for (int i = 0; i < CacheTools.proList.size(); i++)
{
proNames[i] = CacheTools.proList.get(i).getName();
}
return proNames;
}

public String[] getProNames2() {
int order = 0;
String[] proNames = new String[CacheTools.proList.size()];
proNames[0] = "直辖市";
proNames[1] = "广东";
for (int i = 1; i < CacheTools.proList.size(); i++) {
if (CacheTools.proList.get(i).getName().equals("广东")) {
i++;
order = -1;
}
proNames[i + 1 + order] = CacheTools.proList.get(i).getName();
}
return proNames;
}

private OnItemClickListener changeCity = new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> adapter, View view,
int position, long id)
{
city ct = (city) adapter.getAdapter().getItem(position);
cityNameTv.setText(getResources().getString(R.string.curr_city)
+ ct.name);
mapIndex.proIndex = proIndex;
Message msg = Message.obtain();
msg.obj = ct;
finish();
Map.ChangeCityHandler.handleMessage(msg);
}
};

private OnItemSelectedListener changePro = new OnItemSelectedListener()
{
public void onItemSelected(AdapterView<?> adapter, View view,
int position, long id)
{
if (!isInit)
{
Province pro = CacheTools.proList.get(position);
CityAdapter ca = new CityAdapter(ChangeCityActivity.this, pro
.getCityList());
proIndex = position;
cityLv.setAdapter(ca);
}
else
{
isInit = false;
}
}

public void onNothingSelected(AdapterView<?> parent)
{
}
};
}






package com.uumap.adapter;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.uumap.Entity.city;
import com.uumap.MapInterface.R;

public class CityAdapter extends BaseAdapter
{
private List<city> cityList;
private LayoutInflater lif;

public CityAdapter(Context context, List<city> cityList)
{
this.cityList = cityList;
lif = LayoutInflater.from(context);
}

@Override
public int getCount()
{
return cityList.size();
}

@Override
public Object getItem(int position)
{
return cityList.get(position);
}

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

final class ViewHolder
{
public TextView cityTv;
}

@Override
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder vh = null;
if (convertView == null)
{
vh = new ViewHolder();
convertView = lif.inflate(R.layout.city_item, null);
vh.cityTv = (TextView) convertView.findViewById(R.id.city_name);
convertView.setTag(vh);
}
else
{
vh = (ViewHolder) convertView.getTag();
}

vh.cityTv.setText(cityList.get(position).name);
return convertView;
}

}