选择城市列表，配本地数据库，可以直接应用到项目.zip

package com.droid; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; import java.util.jar.Attributes.Name; import java.util.regex.Pattern; import android.app.Activity; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.graphics.PixelFormat; import android.os.Bundle; import android.os.Handler; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.view.WindowManager; import android.widget.AbsListView; import android.widget.AbsListView.OnScrollListener; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ListView; import android.widget.TextView; import com.droid.Activity02.LocateIn; import com.droid.MyLetterListView.OnTouchingLetterChangedListener; public class Activity01 extends Activity { private BaseAdapter adapter; private ListView personList; private TextView overlay; // 对话框首字母textview private MyLetterListView letterListView; // A-Z listview private HashMap<String, Integer> alphaIndexer;// 存放存在的汉语拼音首字母和与之对应的列表位置 private String[] sections;// 存放存在的汉语拼音首字母 private Handler handler; private OverlayThread overlayThread; // 显示首字母对话框 private ArrayList<City> allCity_lists; // 所有城市列表 private ArrayList<City> city_lists;// 城市列表 ListAdapter.TopViewHolder topViewHolder; private String lngCityName = "正在定位所在位置.."; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); personList = (ListView) findViewById(R.id.list_view); allCity_lists = new ArrayList<City>(); letterListView = (MyLetterListView) findViewById(R.id.MyLetterListView01); letterListView .setOnTouchingLetterChangedListener(new LetterListViewListener()); Activity02.setLocateIn(new GetCityName()); alphaIndexer = new HashMap<String, Integer>(); handler = new Handler(); overlayThread = new OverlayThread(); personList.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { } }); personList.setAdapter(adapter); initOverlay(); hotCityInit(); setAdapter(allCity_lists); } /** * 热门城市 */ public void hotCityInit() { City city = new City("", "-"); allCity_lists.add(city); city = new City("", "-"); allCity_lists.add(city); city = new City("上海", ""); allCity_lists.add(city); city = new City("北京", ""); allCity_lists.add(city); city = new City("广州", ""); allCity_lists.add(city); city = new City("深圳", ""); allCity_lists.add(city); city = new City("武汉", ""); allCity_lists.add(city); city = new City("天津", ""); allCity_lists.add(city); city = new City("西安", ""); allCity_lists.add(city); city = new City("南京", ""); allCity_lists.add(city); city = new City("杭州", ""); allCity_lists.add(city); city = new City("成都", ""); allCity_lists.add(city); city = new City("重庆", ""); allCity_lists.add(city); city_lists = getCityList(); allCity_lists.addAll(city_lists); } private ArrayList<City> getCityList() { DBHelper dbHelper = new DBHelper(this); ArrayList<City> list = new ArrayList<City>(); try { dbHelper.createDataBase(); SQLiteDatabase db = dbHelper.getWritableDatabase(); Cursor cursor = db.rawQuery("select * from city", null); City city; while (cursor.moveToNext()) { city = new City(cursor.getString(1), cursor.getString(2)); list.add(city); } cursor.close(); db.close(); } catch (IOException e) { e.printStackTrace(); } Collections.sort(list, comparator); return list; } /** * a-z排序 */ Comparator comparator = new Comparator<City>() { @Override public int compare(City lhs, City rhs) { String a = lhs.getPinyi().substring(0, 1); String b = rhs.getPinyi().substring(0, 1); int flag = a.compareTo(b); if (flag == 0) { return a.compareTo(b); } else { return flag; } } }; private void setAdapter(List<City> list) { adapter = new ListAdapter(this, list); personList.setAdapter(adapter); } public class ListAdapter extends BaseAdapter { private LayoutInflater inflater; private List<City> list; final int VIEW_TYPE = 3; public ListAdapter(Context context, List<City> list) { this.inflater = LayoutInflater.from(context); this.list = list; alphaIndexer = new HashMap<String, Integer>(); sections = new String[list.size()]; for (int i = 0; i < list.size(); i++) { // 当前汉语拼音首字母 String currentStr = getAlpha(list.get(i).getPinyi()); // 上一个汉语拼音首字母，如果不存在为“ ” String previewStr = (i - 1) >= 0 ? getAlpha(list.get(i - 1) .getPinyi()) : " "; if (!previewStr.equals(currentStr)) { String name = getAlpha(list.get(i).getPinyi()); alphaIndexer.put(name, i); sections[i] = name; } } } @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } @Override public int getItemViewType(int position) { // TODO Auto-generated method stub int type = 0; if (position == 0) { type = 2; } else if (position == 1) { type = 1; } return type; } @Override public int getViewTypeCount() {// 这里需要返回需要集中布局类型，总大小为类型的种数的下标 return VIEW_TYPE; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; int viewType = getItemViewType(position); if (viewType == 1) { if (convertView == null) { topViewHolder = new TopViewHolder(); convertView = inflater.inflate(R.layout.frist_list_item, null); topViewHolder.alpha = (TextView) convertView .findViewById(R.id.alpha); topViewHolder.name = (TextView) convertView .findViewById(R.id.lng_city); convertView.setTag(topViewHolder); } else { topViewHolder = (TopViewHolder) convertView.getTag(); } topViewHolder.name.setText(lngCityName); topViewHolder.alpha.setVisibility(View.VISIBLE); topViewHolder.alpha.setText("定位城市"); } else if (viewType == 2) { final ShViewHolder shViewHolder; if (convertView == null) { shViewHolder = new ShViewHolder(); convertView = inflater.inflate(R.layout.search_item, null); shViewHolder.editText = (EditText) convertView .findViewById(R.id.sh); convertView.setTag(shViewHolder); } else { shViewHolder = (ShViewHolder) convertView.getTag(); } } else { if (convertView == null) { convertView = inflater.inflate(R.layout.list_item, null); holder = new ViewHolder(); holder.alpha = (TextView) convertView .findViewById(R.id.alpha); holder.name = (TextView) convertView .findViewById(R.id.name); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } if (position >= 1) { holder.name.setText(list.get(position).getName()); String currentStr = getAlpha(list.get(position).getPinyi()); String previewStr = (position - 1) >= 0 ? getAlpha(list .get(position - 1).getPinyi()) : " "; if (!previewStr.equals(currentStr)) { holder.alpha.setVisibility(View.VISIBLE); if (currentStr.equals("#")) { currentStr = "热门城市"; } holder.alpha.setText(currentStr); } else {