Android百度地图之云检索功能

下面介绍百度Demo提供的最后一个功能：云检索功能。该示例主要为海量位置数据的存储、检索、展示提供了一种解决方案。里面用的是测试的ak，如果开发者要使用自己的数据，则需要使用自己申请的ak。代码如下：

云检索功能介绍类（CloudSearchDemo）：

package com.home;    import android.app.Activity;  import android.content.Intent;  import android.os.Bundle;  import android.view.View;    public class CloudSearchDemo extends Activity {     @Override   protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_cloud_search_demo);   }     public void startCloudSearchDemo(View view) {    Intent intent = new Intent();    intent.setClass(this, CloudSearchActivity.class);    startActivity(intent);   }  }

CloudSearchDemo对应的布局XML：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"      android:layout_width="match_parent"      android:layout_height="match_parent"      android:background="@android:color/white" >        <TextView          android:id="@+id/textView1"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:layout_alignParentLeft="true"          android:layout_alignParentTop="true"          android:layout_marginLeft="10dp"          android:layout_marginRight="10dp"          android:layout_marginTop="36dp"          android:text="@string/cloud_search_tips"          android:textColor="@android:color/black"          android:textSize="16sp" />        <Button          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:layout_below="@+id/textView1"          android:layout_centerHorizontal="true"          android:layout_marginTop="32dp"          android:onClick="startCloudSearchDemo"          android:text="开始体验" />    </RelativeLayout>

string/cloud_search_tips：

 <string name="cloud_search_tips"> \t\tLBS.云是百度地图针对LBS开发者推出的平台级服务。结合已有的地图API和SDK服务。通过开放服务端存储和计算能力,提供海量位置数据存储、检索、展示一体化解决方案。\n\n            \t\t该服务对开发者免费开放。测试demo里写入了测试的ak。开发者可以使用测试ak查看 LBS.云检索的效果。如果开发者要使用自己的数据，请在申请ak后替换demo中的ak。\n\n            \t\t如有任何关于LBS.云服务的问题,诸如如何申请ak、如何存储和检索数据等，请访问百度地图官方“LBS开放平台”。地址：http://lbsyun.baidu.com/  \n  </string>

云检索主Activity：

package com.home;    import java.util.List;    import android.app.Activity;  import android.graphics.drawable.Drawable;  import android.os.Bundle;  import android.view.View;  import android.widget.Toast;    import com.baidu.mapapi.BMapManager;  import com.baidu.mapapi.cloud.Bounds;  import com.baidu.mapapi.cloud.BoundsSearchInfo;  import com.baidu.mapapi.cloud.CustomPoiInfo;  import com.baidu.mapapi.cloud.DetailResult;  import com.baidu.mapapi.cloud.DetailSearchInfo;  import com.baidu.mapapi.cloud.GeoSearchListener;  import com.baidu.mapapi.cloud.GeoSearchManager;  import com.baidu.mapapi.cloud.GeoSearchResult;  import com.baidu.mapapi.cloud.NearbySearchInfo;  import com.baidu.mapapi.cloud.RegionSearchInfo;  import com.baidu.mapapi.map.ItemizedOverlay;  import com.baidu.mapapi.map.MapView;  import com.baidu.mapapi.map.OverlayItem;  import com.baidu.platform.comapi.basestruct.GeoPoint;    public class CloudSearchActivity extends Activity implements GeoSearchListener {     private MapView mMapView;     @Override   protected void onCreate(Bundle icicle) {    super.onCreate(icicle);    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.lbs_search);    GeoSearchManager.getInstance().init(CloudSearchActivity.this);      mMapView = (MapView) findViewById(R.id.bmapView);    mMapView.getController().enableClick(true);    mMapView.getController().setZoom(12);    mMapView.setDoubleClickZooming(true);   }     @Override   public void onGetGeoDetailsResult(DetailResult result, int type, int iError) {    if (result != null) {     if (result.content != null) {      Toast.makeText(CloudSearchActivity.this, result.content.name,        Toast.LENGTH_SHORT).show();     } else {      Toast.makeText(CloudSearchActivity.this,        "status:" + result.status, Toast.LENGTH_SHORT).show();     }    }   }     @Override   public void onGetGeoResult(GeoSearchResult result, int type, int iError) {    if (result != null && result.poiList != null      && result.poiList.size() > 0) {     CloudOverlay poiOverlay = new CloudOverlay(this, mMapView);     poiOverlay.setData(result.poiList);     mMapView.getOverlays().clear();     mMapView.getOverlays().add(poiOverlay);     mMapView.refresh();     mMapView.getController().animateTo(       new GeoPoint((int) (result.poiList.get(0).latitude * 1e6),         (int) (result.poiList.get(0).longitude * 1e6)));    }   }     @Override   protected void onPause() {    mMapView.onPause();    super.onPause();   }     @Override   protected void onResume() {    mMapView.onResume();    super.onResume();   }     @Override   protected void onSaveInstanceState(Bundle outState) {    super.onSaveInstanceState(outState);    mMapView.onSaveInstanceState(outState);     }     @Override   protected void onRestoreInstanceState(Bundle savedInstanceState) {    super.onRestoreInstanceState(savedInstanceState);    mMapView.onRestoreInstanceState(savedInstanceState);   }     @Override   protected void onDestroy() {    mMapView.destroy();    super.onDestroy();   }     public void click(View v) {    if (v.getId() == R.id.regionSearch) {     RegionSearchInfo r = new RegionSearchInfo();     r.queryWords = "北京市五中";     r.ak = "3307f6443b2bdcae21af5d9564b5a88c";     r.cityName = "北京";     r.filter.put("databox", 848);     r.scope = 2;     GeoSearchManager.getInstance().searchRegion(r);    }    if (v.getId() == R.id.nearbySearch) {     NearbySearchInfo r = new NearbySearchInfo();     r.queryWords = "北京";     r.ak = "3307f6443b2bdcae21af5d9564b5a88c";     r.location = new GeoPoint(39956948, 116412214);     r.radius = 10000000;     r.filter.put("databox", 848);     r.scope = 2;     GeoSearchManager.getInstance().searchNearby(r);    }    if (v.getId() == R.id.boundsSearch) {     BoundsSearchInfo r = new BoundsSearchInfo();     r.queryWords = "五中";     r.ak = "3307f6443b2bdcae21af5d9564b5a88c";     r.bounds = new Bounds(39843895, 116402214, 40956948, 116431457);     r.filter.put("databox", 848);     r.scope = 2;     GeoSearchManager.getInstance().searchBounds(r);    }    if (v.getId() == R.id.detailsSearch) {     DetailSearchInfo r = new DetailSearchInfo();     r.id = 81217;     r.ak = "3307f6443b2bdcae21af5d9564b5a88c";     r.scope = 2;     GeoSearchManager.getInstance().searchDetail(r);    }   }  }    class CloudOverlay extends ItemizedOverlay {     List<CustomPoiInfo> mLbsPoints;   Activity mContext;     public CloudOverlay(Activity context, MapView mMapView) {    super(null, mMapView);    mContext = context;   }     public void setData(List<CustomPoiInfo> lbsPoints) {    if (lbsPoints != null) {     mLbsPoints = lbsPoints;    }    for (CustomPoiInfo rec : mLbsPoints) {     GeoPoint pt = new GeoPoint((int) (rec.latitude * 1e6),       (int) (rec.longitude * 1e6));     OverlayItem item = new OverlayItem(pt, rec.name, rec.address);     Drawable marker1 = this.mContext.getResources().getDrawable(       R.drawable.icon_marka);     item.setMarker(marker1);     addItem(item);    }   }     @Override   protected Object clone() throws CloneNotSupportedException {    return super.clone();   }     @Override   protected boolean onTap(int arg0) {    CustomPoiInfo item = mLbsPoints.get(arg0);    Toast.makeText(mContext, item.name, Toast.LENGTH_SHORT).show();    return super.onTap(arg0);   }  }

其布局文件：

<?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="wrap_content"          android:orientation="horizontal" >            <Button              android:id="@+id/regionSearch"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:onClick="click"              android:text="本地搜索" />            <Button              android:id="@+id/nearbySearch"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:onClick="click"              android:text="周边搜索" />            <Button              android:id="@+id/boundsSearch"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:onClick="click"              android:text="区域搜索" />            <Button              android:id="@+id/detailsSearch"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:onClick="click"              android:text="详情搜索" />      </LinearLayout>        <com.baidu.mapapi.map.MapView          android:id="@+id/bmapView"          android:layout_width="fill_parent"          android:layout_height="fill_parent"          android:clickable="true" />    </LinearLayout>

配置文件和Application类与之前的一样。

附上图片效果：

 来自：http://blog.csdn.net/u010142437/article/details/11664781