Android 城市选择增加热门城市

Android 城市选择可用于第一次进入应用程序定位失败后手动选择城市。

实现代码

<pre name="code" class="java">package com.jock.cityselecter;import java.util.ArrayList;
import java.util.Collections;
import java.util.List;import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.os.IBinder;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;import com.jock.cityselecter.adapter.MyBaseAdapter;
import com.jock.cityselecter.adapter.SortAdapter;
import com.jock.cityselecter.bean.RegionInfo;
import com.jock.cityselecter.bean.SortModel;
import com.jock.cityselecter.db.RegionDAO;
import com.jock.cityselecter.utils.CharacterParser;
import com.jock.cityselecter.utils.ClearEditText;
import com.jock.cityselecter.utils.PinyinComparator;
import com.jock.cityselecter.widget.SideBar;public class CitySelecterActivity extends Activity
{private List<RegionInfo> provinceList;private List<RegionInfo> citysList;private List<String> provinces;private ListView sortListView;private SideBar sideBar;private TextView dialog;private SortAdapter adapter;private ClearEditText mClearEditText;private List<RegionInfo> mReMenCitys;// 热门城市列表private MyGridViewAdapter gvAdapter;private GridView mGridView;private RelativeLayout iv_left;/*** 汉字转换成拼音的类*/private CharacterParser characterParser;private List<SortModel> SourceDateList;/*** 根据拼音来排列ListView里面的数据类*/private PinyinComparator pinyinComparator;@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_city_selecter);initData();initViews();}private void initData(){provinceList = RegionDAO.getProvencesOrCity(1);provinceList.addAll(RegionDAO.getProvencesOrCity(2));citysList = new ArrayList<RegionInfo>();mReMenCitys = new ArrayList<RegionInfo>();provinces = new ArrayList<String>();for (RegionInfo info : provinceList){provinces.add(info.getName().trim());}mReMenCitys.add(new RegionInfo(180, 13, "武汉"));mReMenCitys.add(new RegionInfo(194, 13, "孝感"));mReMenCitys.add(new RegionInfo(32, 1, "重庆"));mReMenCitys.add(new RegionInfo(2, 1, "北京"));mReMenCitys.add(new RegionInfo(25, 1, "上海"));mReMenCitys.add(new RegionInfo(77, 6, "深圳"));mReMenCitys.add(new RegionInfo(76, 6, "广州"));mReMenCitys.add(new RegionInfo(197, 14, "长沙"));mReMenCitys.add(new RegionInfo(343, 1, "天津"));}private void initViews(){iv_left = (RelativeLayout) findViewById(R.id.iv_left);View view = View.inflate(this, R.layout.head_city_list, null);mGridView = (GridView) view.findViewById(R.id.id_gv_remen);gvAdapter = new MyGridViewAdapter(this, mReMenCitys);mGridView.setAdapter(gvAdapter);mGridView.setSelector(new ColorDrawable(Color.TRANSPARENT));// 实例化汉字转拼音类characterParser = CharacterParser.getInstance();pinyinComparator = new PinyinComparator();sideBar = (SideBar) findViewById(R.id.sidrbar);dialog = (TextView) findViewById(R.id.dialog);sideBar.setTextView(dialog);// 设置右侧触摸监听sideBar.setOnTouchingLetterChangedListener(new SideBar.OnTouchingLetterChangedListener(){@Overridepublic void onTouchingLetterChanged(String s){// 该字母首次出现的位置int position = adapter.getPositionForSection(s.charAt(0));if (position != -1){sortListView.setSelection(position);}}});sortListView = (ListView) findViewById(R.id.country_lvcountry);sortListView.addHeaderView(view);sortListView.setOnItemClickListener(new OnItemClickListener(){@Overridepublic void onItemClick(AdapterView<?> parent, View view, int position, long id){// 这里要利用adapter.getItem(position)来获取当前position所对应的对象Toast.makeText(getApplication(), ((SortModel) adapter.getItem(position - 1)).getName(), Toast.LENGTH_SHORT).show();hideSoftInput(mClearEditText.getWindowToken());Intent data = new Intent();data.putExtra("cityName", ((SortModel) adapter.getItem(position - 1)).getName());setResult(1110, data);}});// SourceDateList =// filledData(getResources().getStringArray(R.array.date));SourceDateList = filledData(provinceList);// 根据a-z进行排序源数据Collections.sort(SourceDateList, pinyinComparator);adapter = new SortAdapter(this, SourceDateList);sortListView.setAdapter(adapter);mClearEditText = (ClearEditText) findViewById(R.id.filter_edit);// 根据输入框输入值的改变来过滤搜索mClearEditText.addTextChangedListener(new TextWatcher(){@Overridepublic void onTextChanged(CharSequence s, int start, int before, int count){// 当输入框里面的值为空，更新为原来的列表，否则为过滤数据列表filterData(s.toString());}@Overridepublic void beforeTextChanged(CharSequence s, int start, int count, int after){}@Overridepublic void afterTextChanged(Editable s){}});iv_left.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){hideSoftInput(mClearEditText.getWindowToken());CitySelecterActivity.this.finish();}});mGridView.setOnItemClickListener(new OnItemClickListener(){@Overridepublic void onItemClick(AdapterView<?> parent, View view, int position, long id){String cityName = mReMenCitys.get(position).getName();Toast.makeText(getApplication(), cityName, Toast.LENGTH_SHORT).show();hideSoftInput(mClearEditText.getWindowToken());Intent data = new Intent();data.putExtra("cityName", cityName);setResult(1110, data);}});}/*** 为ListView填充数据* * @param date* @return*/private List<SortModel> filledData(List<RegionInfo> date){List<SortModel> mSortList = new ArrayList<SortModel>();for (int i = 0; i < date.size(); i++){SortModel sortModel = new SortModel();sortModel.setName(date.get(i).getName());// 汉字转换成拼音String pinyin = characterParser.getSelling(date.get(i).getName());String sortString = pinyin.substring(0, 1).toUpperCase();// 正则表达式，判断首字母是否是英文字母if (sortString.matches("[A-Z]")){sortModel.setSortLetters(sortString.toUpperCase());} else{sortModel.setSortLetters("#");}mSortList.add(sortModel);}return mSortList;}/*** 根据输入框中的值来过滤数据并更新ListView* * @param filterStr*/private void filterData(String filterStr){List<SortModel> filterDateList = new ArrayList<SortModel>();if (TextUtils.isEmpty(filterStr)){filterDateList = SourceDateList;} else{if (!provinces.contains(filterStr)){filterDateList.clear();for (SortModel sortModel : SourceDateList){String name = sortModel.getName();if (name.indexOf(filterStr.toString()) != -1 || characterParser.getSelling(name).startsWith(filterStr.toString())){filterDateList.add(sortModel);}}} else{filterDateList.clear();for (int i = 0; i < provinceList.size(); i++){String name = provinceList.get(i).getName();if (name.equals(filterStr)){filterDateList.addAll(filledData(RegionDAO.getProvencesOrCityOnParent(provinceList.get(i).getId())));}}}}// 根据a-z进行排序Collections.sort(filterDateList, pinyinComparator);adapter.updateListView(filterDateList);}private class MyGridViewAdapter extends MyBaseAdapter<RegionInfo, GridView>{private LayoutInflater inflater;public MyGridViewAdapter(Context ct, List<RegionInfo> list){super(ct, list);inflater = LayoutInflater.from(ct);}@Overridepublic View getView(int position, View convertView, ViewGroup parent){ViewHolder holder = null;if (convertView == null){holder = new ViewHolder();convertView = inflater.inflate(R.layout.item_remen_city, null);holder.id_tv_cityname = (TextView) convertView.findViewById(R.id.id_tv_cityname);convertView.setTag(holder);} else{holder = (ViewHolder) convertView.getTag();}RegionInfo info = mReMenCitys.get(position);holder.id_tv_cityname.setText(info.getName());return convertView;}class ViewHolder{TextView id_tv_cityname;}}@Overrideprotected void onResume(){super.onResume();}/* 多种隐藏软件盘方法的其中一种* * @param token*/protected void hideSoftInput(IBinder token){if (token != null){InputMethodManager im = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);im.hideSoftInputFromWindow(token, InputMethodManager.HIDE_NOT_ALWAYS);}}
}

源码下载

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