百度地图进阶【POI数据检索】

 <span style="color:#ff6666;"> // 第二步，创建POI检索监听者；</span>
  OnGetPoiSearchResultListener poiListener = new OnGetPoiSearchResultListener() {

    public void onGetPoiResult(PoiResult result) {
      // 获取POI检索结果
      if (result == null || result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {
        Toast.makeText(POISearchMapActivity.this, "未找到结果", Toast.LENGTH_LONG).show();
        return;
      }
      if (result.error == SearchResult.ERRORNO.NO_ERROR) {
        List<PoiInfo> allPoi = result.getAllPoi();
        totalpages = result.getTotalPageNum();

        String[] datas = new String[10];
        for (int i = 0; i < 10; i++) {
          datas[i] = allPoi.get(i).name;
        }

        adapter = new ArrayAdapter<String>(POISearchMapActivity.this, android.R.layout.simple_list_item_1, datas);
        listView.setAdapter(adapter);

        return;
      }
      if (result.error == SearchResult.ERRORNO.AMBIGUOUS_KEYWORD) {

        // 当输入关键字在本市没有找到，但在其他城市找到时，返回包含该关键字信息的城市列表
        String strInfo = "在";
        for (CityInfo cityInfo : result.getSuggestCityList()) {
          strInfo += cityInfo.city;
          strInfo += ",";
        }
        strInfo += "找到结果";
        Toast.makeText(POISearchMapActivity.this, strInfo, Toast.LENGTH_LONG).show();
      }
    }

    public void onGetPoiDetailResult(PoiDetailResult result) {
      // 获取Place详情页检索结果

    }
  };

<span style="color:#ff6666;">// 第三步，设置POI检索监听者；</span>
    poiSearch.setOnGetPoiSearchResultListener(poiListener);

  // 这是范围
        LatLngBounds.Builder b = new LatLngBounds.Builder();
        b.include(new LatLng(39.976446, 116.320331));
        b.include(new LatLng(39.900766, 116.32838));
        b.include(new LatLng(39.910065, 116.491081));
        b.include(new LatLng(39.976004, 116.475558));
        LatLngBounds build = b.build();<pre name="code" class="java">获得LatLngBounds

<RelativeLayout 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"
    tools:context=".IndexActivity" >
	
    <ListView
        android:id="@+id/mylistView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</RelativeLayout>

package com.flyou.hellomap;

import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.model.LatLngBounds;
import com.baidu.mapapi.search.core.CityInfo;
import com.baidu.mapapi.search.core.PoiInfo;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;
import com.baidu.mapapi.search.poi.PoiBoundSearchOption;
import com.baidu.mapapi.search.poi.PoiDetailResult;
import com.baidu.mapapi.search.poi.PoiResult;
import com.baidu.mapapi.search.poi.PoiSearch;

public class POISearchMapActivity extends Activity {
  private int totalpages = 0;
  private ListView listView = null;
  private PoiSearch poiSearch;
  private int currentPage = 0;
  ArrayAdapter<String> adapter = null;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // 在使用SDK各组件之前初始化context信息，传入ApplicationContext
    // 注意该方法要再setContentView方法之前实现
    SDKInitializer.initialize(getApplicationContext());

    setContentView(R.layout.activity_index);

    listView = (ListView) findViewById(R.id.mylistView);

    // 第一步，创建POI检索实例
    poiSearch = PoiSearch.newInstance();
    // 第三步，设置POI检索监听者；
    poiSearch.setOnGetPoiSearchResultListener(poiListener);

  }

  // 第二步，创建POI检索监听者；
  OnGetPoiSearchResultListener poiListener = new OnGetPoiSearchResultListener() {

    public void onGetPoiResult(PoiResult result) {
      // 获取POI检索结果
      if (result == null || result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {
        Toast.makeText(POISearchMapActivity.this, "未找到结果", Toast.LENGTH_LONG).show();
        return;
      }
      if (result.error == SearchResult.ERRORNO.NO_ERROR) {
        List<PoiInfo> allPoi = result.getAllPoi();
        totalpages = result.getTotalPageNum();

        String[] datas = new String[10];
        for (int i = 0; i < 10; i++) {
          datas[i] = allPoi.get(i).name;
        }
        Toast.makeText(POISearchMapActivity.this, "当前第"+currentPage+"页，共"+result.getTotalPageNum()+"页", 0).show();
        adapter = new ArrayAdapter<String>(POISearchMapActivity.this, android.R.layout.simple_list_item_1, datas);
        listView.setAdapter(adapter);

        return;
      }
      if (result.error == SearchResult.ERRORNO.AMBIGUOUS_KEYWORD) {

        // 当输入关键字在本市没有找到，但在其他城市找到时，返回包含该关键字信息的城市列表
        String strInfo = "在";
        for (CityInfo cityInfo : result.getSuggestCityList()) {
          strInfo += cityInfo.city;
          strInfo += ",";
        }
        strInfo += "找到结果";
        Toast.makeText(POISearchMapActivity.this, strInfo, Toast.LENGTH_LONG).show();
      }
    }

    public void onGetPoiDetailResult(PoiDetailResult result) {
      // 获取Place详情页检索结果

    }
  };

  @Override
  protected void onDestroy() {
    super.onDestroy();
    // 在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
    poiSearch.destroy();
  }

  @Override
  protected void onResume() {
    super.onResume();
    // 在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理

  }

  @Override
  protected void onPause() {
    super.onPause();
    // 在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理

  }

  @Override
  public boolean onKeyDown(int keyCode, KeyEvent event) {

    switch (keyCode) {
      case KeyEvent.KEYCODE_MENU:
        
        // 这是范围
        LatLngBounds.Builder b = new LatLngBounds.Builder();
        b.include(new LatLng(39.976446, 116.320331));
        b.include(new LatLng(39.900766, 116.32838));
        b.include(new LatLng(39.910065, 116.491081));
        b.include(new LatLng(39.976004, 116.475558));
        LatLngBounds build = b.build();
        // 第四步，发起检索请求；
        poiSearch.searchInBound(new PoiBoundSearchOption().bound(build).keyword("美食").pageNum(currentPage));
        // poiSearch.searchInCity((new
        // PoiCitySearchOption()).city("开封").keyword("美食").pageNum(currentPage));

        currentPage++;
        if (currentPage == totalpages) {
          currentPage = 0;
        }
        break;

    }
    return super.onKeyDown(keyCode, event);
  }
}