百度地图之Poi搜索功能
该示例主要介绍关键词查询、suggestion查询和查看餐饮类Place详情页功能，尤其搜索某个地方的餐厅、理发店等等比较有实际意义，百度Demo代码如下：
Activity：
package com.home;import android.app.Activity;import android.os.Bundle;import android.text.Editable;import android.text.TextWatcher;import android.view.View;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;import android.widget.EditText;import android.widget.Toast;import com.baidu.mapapi.BMapManager;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.search.MKAddrInfo;import com.baidu.mapapi.search.MKBusLineResult;import com.baidu.mapapi.search.MKDrivingRouteResult;import com.baidu.mapapi.search.MKPoiInfo;import com.baidu.mapapi.search.MKPoiResult;import com.baidu.mapapi.search.MKSearch;import com.baidu.mapapi.search.MKSearchListener;import com.baidu.mapapi.search.MKShareUrlResult;import com.baidu.mapapi.search.MKSuggestionInfo;import com.baidu.mapapi.search.MKSuggestionResult;import com.baidu.mapapi.search.MKTransitRouteResult;import com.baidu.mapapi.search.MKWalkingRouteResult;/** * 演示poi搜索功能 */public class PoiSearchActivity extends Activity {private MapView mMapView = null;private MKSearch mSearch = null; // 搜索模块，也可去掉地图模块独立使用/** * 搜索关键字输入窗口 */private AutoCompleteTextView keyWorldsView = null;private ArrayAdapter<String> sugAdapter = null;private int load_Index;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);DemoApplication app = (DemoApplication) this.getApplication();if (app.mBMapManager == null) {app.mBMapManager = new BMapManager(this);app.mBMapManager.init(DemoApplication.strKey,new DemoApplication.MyGeneralListener());}setContentView(R.layout.activity_poisearch);mMapView = (MapView) findViewById(R.id.bmapView);mMapView.getController().enableClick(true);mMapView.getController().setZoom(12);// 初始化搜索模块，注册搜索事件监听mSearch = new MKSearch();mSearch.init(app.mBMapManager, new MKSearchListener() {// 在此处理详情页结果@Overridepublic void onGetPoiDetailSearchResult(int type, int error) {if (error != 0) {Toast.makeText(PoiSearchActivity.this, "抱歉，未找到结果",Toast.LENGTH_SHORT).show();} else {Toast.makeText(PoiSearchActivity.this, "成功，查看详情页面",Toast.LENGTH_SHORT).show();}}/** * 在此处理poi搜索结果 */public void onGetPoiResult(MKPoiResult res, int type, int error) {// 错误号可参考MKEvent中的定义if (error != 0 || res == null) {Toast.makeText(PoiSearchActivity.this, "抱歉，未找到结果",Toast.LENGTH_LONG).show();return;}// 将地图移动到第一个POI中心点if (res.getCurrentNumPois() > 0) {// 将poi结果显示到地图上MyPoiOverlay poiOverlay = new MyPoiOverlay(PoiSearchActivity.this, mMapView, mSearch);poiOverlay.setData(res.getAllPoi());mMapView.getOverlays().clear();mMapView.getOverlays().add(poiOverlay);mMapView.refresh();// 当ePoiType为2（公交线路）或4（地铁线路）时， poi坐标为空for (MKPoiInfo info : res.getAllPoi()) {if (info.pt != null) {mMapView.getController().animateTo(info.pt);break;}}} else if (res.getCityListNum() > 0) {// 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 (int i = 0; i < res.getCityListNum(); i++) {strInfo += res.getCityListInfo(i).city;strInfo += ",";}strInfo += "找到结果";Toast.makeText(PoiSearchActivity.this, strInfo,Toast.LENGTH_LONG).show();}}public void onGetDrivingRouteResult(MKDrivingRouteResult res,int error) {}public void onGetTransitRouteResult(MKTransitRouteResult res,int error) {}public void onGetWalkingRouteResult(MKWalkingRouteResult res,int error) {}public void onGetAddrResult(MKAddrInfo res, int error) {}public void onGetBusDetailResult(MKBusLineResult result, int iError) {}/** * 更新建议列表 */@Overridepublic void onGetSuggestionResult(MKSuggestionResult res, int arg1) {if (res == null || res.getAllSuggestions() == null) {return;}sugAdapter.clear();for (MKSuggestionInfo info : res.getAllSuggestions()) {if (info.key != null)sugAdapter.add(info.key);}sugAdapter.notifyDataSetChanged();}@Overridepublic void onGetShareUrlResult(MKShareUrlResult result, int type,int error) {}});keyWorldsView = (AutoCompleteTextView) findViewById(R.id.searchkey);sugAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line);keyWorldsView.setAdapter(sugAdapter);/** * 当输入关键字变化时，动态更新建议列表 */keyWorldsView.addTextChangedListener(new TextWatcher() {@Overridepublic void afterTextChanged(Editable arg0) {}@Overridepublic void beforeTextChanged(CharSequence arg0, int arg1,int arg2, int arg3) {}@Overridepublic void onTextChanged(CharSequence cs, int arg1, int arg2,int arg3) {if (cs.length() <= 0) {return;}String city = ((EditText) findViewById(R.id.city)).getText().toString();/** * 使用建议搜索服务获取建议列表，结果在onSuggestionResult()中更新 */mSearch.suggestionSearch(cs.toString(), city);}});}@Overrideprotected void onPause() {mMapView.onPause();super.onPause();}@Overrideprotected void onResume() {mMapView.onResume();super.onResume();}@Overrideprotected void onDestroy() {mMapView.destroy();super.onDestroy();}@Overrideprotected void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);mMapView.onSaveInstanceState(outState);}@Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {super.onRestoreInstanceState(savedInstanceState);mMapView.onRestoreInstanceState(savedInstanceState);}/** * 影响搜索按钮点击事件 * * @param v */public void searchButtonProcess(View v) {EditText editCity = (EditText) findViewById(R.id.city);EditText editSearchKey = (EditText) findViewById(R.id.searchkey);mSearch.poiSearchInCity(editCity.getText().toString(), editSearchKey.getText().toString());}public void goToNextPage(View v) {// 搜索下一组poiint flag = mSearch.goToPoiPage(++load_Index);if (flag != 0) {Toast.makeText(PoiSearchActivity.this, "先搜索开始，然后再搜索下一组数据",Toast.LENGTH_SHORT).show();}}}布局XML（activity_poisearch）：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <LinearLayout android:layout_width="fill_parent" android:layout_height="50dip" android:orientation="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="在" > </TextView> <EditText android:id="@+id/city" android:layout_width="wrap_content" android:layout_height="match_parent" android:text="北京" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="市内找" > </TextView> <AutoCompleteTextView android:id="@+id/searchkey" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0.88" android:text="餐厅" /> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="50dip" android:orientation="horizontal" > <Button android:id="@+id/search" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="12" android:background="@drawable/button_style" android:onClick="searchButtonProcess" android:padding="10dip" android:text="开始" /> <Button android:id="@+id/map_next_data" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="12" android:background="@drawable/button_style" android:onClick="goToNextPage" android:padding="10dip" android:text="下一组数据" /> </LinearLayout> <com.baidu.mapapi.map.MapView android:id="@+id/bmapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:clickable="true" /></LinearLayout>
MyPoiOverlay类：
package com.home;import android.app.Activity;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.map.PoiOverlay;import com.baidu.mapapi.search.MKPoiInfo;import com.baidu.mapapi.search.MKSearch;public class MyPoiOverlay extends PoiOverlay {MKSearch mSearch;public MyPoiOverlay(Activity activity, MapView mapView, MKSearch search) {super(activity, mapView);mSearch = search;}@Overrideprotected boolean onTap(int i) {super.onTap(i);MKPoiInfo info = getPoi(i);if (info.hasCaterDetails) {mSearch.poiDetailSearch(info.uid);}return true;}}
在配置文件中要比之前多配置一个activity，不然没法查看详细界面，这是百度SDK jar中提供的类：
<activity android:name="com.baidu.mapapi.search.PlaceCaterActivity" android:configChanges="orientation|keyboardHidden" android:theme="@android:style/Theme.NoTitleBar" > </activity>
Application类同之前。
附上图片效果：
详细界面：
