Android 百度地图-实现POI的搜索(搜索周边)

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001package com.lbsproject;

002  

003import java.util.ArrayList;

004  

005import android.content.Context;

006import android.graphics.Canvas;

007import android.graphics.Color;

008import android.graphics.Paint;

009import android.graphics.Point;

010import android.graphics.drawable.Drawable;

011import android.location.Criteria;

012import android.location.Location;

013import android.location.LocationManager;

014import android.os.Bundle;

015import android.util.Log;

016import android.view.Menu;

017import android.view.MenuItem;

018import android.view.MotionEvent;

019import android.view.View;

020import android.widget.Button;

021import android.widget.EditText;

022import android.widget.Toast;

023  

024import com.baidu.mapapi.BMapManager;

025import com.baidu.mapapi.GeoPoint;

026import com.baidu.mapapi.LocationListener;

027import com.baidu.mapapi.MKAddrInfo;

028import com.baidu.mapapi.MKDrivingRouteResult;

029import com.baidu.mapapi.MKPoiResult;

030import com.baidu.mapapi.MKSearch;

031import com.baidu.mapapi.MKSearchListener;

032import com.baidu.mapapi.MKTransitRouteResult;

033import com.baidu.mapapi.MKWalkingRouteResult;

034import com.baidu.mapapi.MapActivity;

035import com.baidu.mapapi.MapController;

036import com.baidu.mapapi.MapView;

037import com.baidu.mapapi.MyLocationOverlay;

038import com.baidu.mapapi.Overlay;

039import com.baidu.mapapi.PoiOverlay;

040import com.baidu.mapapi.Projection;

041import com.lbsproject.LBSProjectActivity.GetOverlay;

042  

043public class LBSProjectActivity extendsMapActivity {

044    protectedstatic final String TAG = null;

045    privateBMapManager mapManager;

046    privateMapView mapView;

047    privateMapController mapController;

048    privateMKSearch mSearch = null; 

049    privateGeoPoint geoPoint = newGeoPoint(122084095,37422006);;

050    LocationListener mLocationListener =null;

051    MyLocationOverlay mLocationOverlay =null; 

052    privateEditText editCity;

053    privateEditText editGeoCodeKey;

054    privateEditText areaText;

055    privateGetOverlay getOverlay;

056  

057    @Override

058    publicvoid onCreate(Bundle savedInstanceState) {

059        super.onCreate(savedInstanceState);

060        setContentView(R.layout.main);

061      

062        getInitLoc();// 程序打开时候获取当前位置 显示地图上

063        mapManager =new BMapManager(getApplication());

064  

065        // init方法的第一个参数需填入申请的APIKey

066        mapManager.init("2150650BE0DCF874994B845CEC7B60A0518E6AFE",null);

067        super.initMapActivity(mapManager);

068        mapView = (MapView) findViewById(R.id.mapView);

069        mapView.setBuiltInZoomControls(true);

070        mapView.setDrawOverlayWhenZooming(true);

071  

072        // 添加定位图层

073        mLocationOverlay =new MyLocationOverlay(this, mapView);

074        mapView.getOverlays().add(mLocationOverlay);

075        getOverlay =new GetOverlay();

076        mapView.getOverlays().add(getOverlay);

077  

078        gotoLocate();

079  

080        Button buttonGetPos = (Button) findViewById(R.id.buttonGetPos);//获取"我的位置的方法"

081        buttonGetPos.setOnClickListener(newView.OnClickListener() {

082  

083            publicvoid onClick(View v) {

084                getInitLoc();

085                gotoLocate();

086            }

087        });

088  

089        editCity = (EditText) findViewById(R.id.editTextCity);

090        editGeoCodeKey = (EditText) findViewById(R.id.editTextAera);

091        Button buttonSearchCity = (Button) findViewById(R.id.buttonSearchCity);

092        buttonSearchCity.setOnClickListener(newView.OnClickListener() {//点击按钮定位需要去的地方

093  

094            @Override

095            publicvoid onClick(View v) {

096  

097                mSearch.geocode(editGeoCodeKey.getText().toString(), editCity

098                        .getText().toString());

099                // mapView.getOverlays().add(getOverlay);

100  

101            }

102        });

103        areaText = (EditText) findViewById(R.id.searchKeywords);

104        Button buttonSearchArea = (Button) findViewById(R.id.buttonSearchArea);

105        buttonSearchArea.setOnClickListener(newView.OnClickListener() {

106  

107            @Override

108            publicvoid onClick(View v) {

109  

110                  

111                mSearch.poiSearchNearBy(areaText.getText().toString(),// 搜索XX附近5000米范围的XXX

112                        geoPoint,5000);

113  

114            }

115        });

116  

117        // 注册定位事件

118        mLocationListener =new LocationListener() {

119            publicvoid onLocationChanged(Location location) {

120                if(location != null) {

121                    Log.i(TAG,"" + location.getLatitude());

122                    Log.i(TAG,"" + location.getLongitude());

123                    geoPoint =new GeoPoint(

124                            (int) (location.getLatitude() * 1e6),

125                            (int) (location.getLongitude() * 1e6));

126                    gotoLocate();

127                }

128            }

129  

130        };

131  

132        mSearch =new MKSearch();//搜索服务类

133        mSearch.init(mapManager,new MKSearchListener() {

134            publicvoid onGetAddrResult(MKAddrInfo res,int error) {

135                if(error != 0) {

136                    String str = String.format("错误号：%d", error);

137                    Toast.makeText(LBSProjectActivity.this, str,

138                            Toast.LENGTH_LONG).show();

139                    return;

140                }

141  

142                mapView.getController().animateTo(res.geoPt);

143  

144//              String strInfo = String.format("纬度：%f 经度：%f\r\n",

145//                      res.geoPt.getLatitudeE6() / 1e6,

146//                      res.geoPt.getLongitudeE6() / 1e6);

147  

148                geoPoint = res.geoPt;

149  

150                // Toast.makeText(LBSProjectActivity.this, strInfo,

151                // Toast.LENGTH_LONG).show();

152                Drawable marker = getResources().getDrawable(

153                        R.drawable.iconmarka);// 得到需要标在地图上的资源

154                marker.setBounds(0,0, marker.getIntrinsicWidth(),

155                        marker.getIntrinsicHeight());// 为maker定义位置和边界

156                mapView.getOverlays().clear();

157                mapView.getOverlays().add(getOverlay);

158                mapView.getOverlays().add(

159                        newOverItemT(marker, LBSProjectActivity.this,

160                                res.geoPt, res.strAddr));

161            }

162  

163            publicvoid onGetPoiResult(MKPoiResult res,int type, int error) {

164                if(res == null) {

165                    Log.d("onGetPoiResult","the onGetPoiResult res is " + type

166                            +"__" + error);

167                }else

168                    Log.d("onGetPoiResult",

169                            "the onGetPoiResult res is "

170                                    + res.getCurrentNumPois() +"__"

171                                    + res.getNumPages() +"__"

172                                    + res.getNumPois() +"__" + type + "__"

173                                    + error);

174  

175                // 错误号可参考MKEvent中的定义

176                if(error != 0 || res == null) {

177                    Log.d("onGetPoiResult","the onGetPoiResult res 0 ");

178                    Toast.makeText(LBSProjectActivity.this,"抱歉，未找到结果",

179                            Toast.LENGTH_LONG).show();

180                    return;

181                }

182  

183                ArrayList<MKPoiResult> poiResult = res.getMultiPoiResult();

184                if(poiResult != null)

185                    Log.d("onGetPoiResult","the onGetPoiResult res 1__"

186                            + poiResult.size());

187                // 将地图移动到第一个POI中心点

188                if(res.getCurrentNumPois() > 0) {

189                    Log.d("onGetPoiResult","the onGetPoiResult res 2");

190                    // 将poi结果显示到地图上

191                    PoiOverlay poiOverlay =new PoiOverlay(

192                            LBSProjectActivity.this, mapView);

193                    poiOverlay.setData(res.getAllPoi());

194                    mapView.getOverlays().clear();

195                    mapView.getOverlays().add(getOverlay);

196                    mapView.getOverlays().add(poiOverlay);

197                    mapView.invalidate();

198                    mapView.getController().animateTo(res.getPoi(0).pt);

199                }else if(res.getCityListNum() > 0) {

200                    Log.d("onGetPoiResult","the onGetPoiResult res 3");

201                    String strInfo ="在";

202                    for(int i = 0; i < res.getCityListNum(); i++) {

203                        strInfo += res.getCityListInfo(i).city;

204                        strInfo +=",";

205                    }

206                    strInfo +="找到结果";

207                    Toast.makeText(LBSProjectActivity.this, strInfo,

208                            Toast.LENGTH_LONG).show();

209                }

210  

211                Log.d("onGetPoiResult","the onGetPoiResult res 4");

212  

213            }

214  

215            publicvoid onGetDrivingRouteResult(MKDrivingRouteResult res,

216                    interror) {

217            }

218  

219            publicvoid onGetTransitRouteResult(MKTransitRouteResult res,

220                    interror) {

221            }

222  

223            publicvoid onGetWalkingRouteResult(MKWalkingRouteResult res,

224                    interror) {

225            }

226  

227        });

228  

229    }

230  

231    privatevoid gotoLocate() {// 获取所在位置

232        Drawable marker = getResources().getDrawable(R.drawable.iconmarka);// 得到需要标在地图上的资源

233        marker.setBounds(0,0, marker.getIntrinsicWidth(),

234                marker.getIntrinsicHeight());// 为maker定义位置和边界

235        mapView.getOverlays().clear();

236        mapView.getOverlays().add(getOverlay);

237        mapView.getOverlays().add(

238                newOverItemT(marker, LBSProjectActivity.this, geoPoint,""));

239  

240        mapView.getController().animateTo(geoPoint);

241        mapController = mapView.getController();

242        // 设置地图的中心

243        mapController.setCenter(geoPoint);

244        // 设置地图默认的缩放级别

245        mapController.setZoom(16);

246    }

247  

248    privatevoid getInitLoc() {// 初始化时候获取坐标

249        try{

250  

251            LocationManager locationManager;

252            String context = Context.LOCATION_SERVICE;

253            locationManager = (LocationManager) getSystemService(context);

254            // String provider = LocationManager.GPS_PROVIDER;

255  

256            Criteria criteria =new Criteria();

257            criteria.setAccuracy(Criteria.ACCURACY_FINE);

258            criteria.setAltitudeRequired(false);

259            criteria.setBearingRequired(false);

260            criteria.setCostAllowed(true);

261            criteria.setPowerRequirement(Criteria.POWER_LOW);

262            String provider = locationManager.getBestProvider(criteria,true);

263            Location location = locationManager.getLastKnownLocation(provider);

264            geoPoint =new GeoPoint((int) (location.getLatitude() * 1e6),

265                    (int) (location.getLongitude() * 1e6));

266        }catch (Exception e) {

267            // TODO: handle exception

268        }

269    }

270  

271    @Override

272    protectedboolean isRouteDisplayed() {

273        returnfalse;

274    }

275  

276    @Override

277    protectedvoid onDestroy() {

278        if(mapManager != null) {

279            // 程序退出前需调用此方法

280            mapManager.destroy();

281            mapManager =null;

282        }

283        super.onDestroy();

284    }

285  

286    @Override

287    protectedvoid onPause() {

288        if(mapManager != null) {

289            // 终止百度地图API

290            mapManager.getLocationManager().removeUpdates(mLocationListener);

291            mLocationOverlay.disableMyLocation();

292            mLocationOverlay.disableCompass();// 关闭指南针

293            mapManager.stop();

294        }

295        super.onPause();

296    }

297  

298    @Override

299    protectedvoid onResume() {

300        if(mapManager != null) {

301            // 开启百度地图API

302            // 注册定位事件，定位后将地图移动到定位点

303            mapManager.getLocationManager().requestLocationUpdates(

304                    mLocationListener);

305            mLocationOverlay.enableMyLocation();

306            mLocationOverlay.enableCompass();// 打开指南针

307            mapManager.start();

308        }

309        super.onResume();

310    }

311  

312    /**

313     * * 实现MKSearchListener接口,用于实现异步搜索服务 * @author liufeng

314     */

315    publicclass MySearchListenerimplements MKSearchListener {

316          

317        publicvoid onGetAddrResult(MKAddrInfo result,int iError) {

318        }

319  

320        publicvoid onGetDrivingRouteResult(MKDrivingRouteResult result,

321                intiError) {

322        }

323  

324        /**

325         * * POI搜索结果（范围检索、城市POI检索、周边检索） * * @param result 搜索结果 * @param type

326         * 返回结果类型（11,12,21:poi列表 7:城市列表） * @param iError 错误号（0表示正确返回）

327         */

328        @Override

329        publicvoid onGetPoiResult(MKPoiResult result,int type, int iError) {

330            if(result == null) {

331                return;

332            }

333            // PoiOverlay是baidu map api提供的用于显示POI的Overlay

334            PoiOverlay poioverlay =new PoiOverlay(LBSProjectActivity.this,

335                    mapView);

336            // 设置搜索到的POI数据

337            poioverlay.setData(result.getAllPoi());

338            // 在地图上显示PoiOverlay（将搜索到的兴趣点标注在地图上）

339            mapView.getOverlays().add(poioverlay);

340        }

341  

342      

343        publicvoid onGetTransitRouteResult(MKTransitRouteResult result,

344                intiError) {

345        }

346  

347          

348        publicvoid onGetWalkingRouteResult(MKWalkingRouteResult result,

349                intiError) {

350        }

351    }

352  

353    classGetOverlay extendsOverlay {

354        GeoPoint geo;

355  

356        @Override

357        publicvoid draw(Canvas canvas, MapView gmapView,boolean arg2) {

358            super.draw(canvas, mapView, arg2);

359            if(geo == null) {

360                return;

361            }

362            Log.i("11111111111111111111", arg2 +"-------draw--");

363        }

364  

365        @Override

366        publicboolean onTap(GeoPoint geo, MapView arg1) {

367            geoPoint = geo;

368            Drawable marker = getResources().getDrawable(R.drawable.iconmarka);// 得到需要标在地图上的资源

369            marker.setBounds(0,0, marker.getIntrinsicWidth(),

370                    marker.getIntrinsicHeight());// 为maker定义位置和边界

371            mapView.getOverlays().clear();

372            mapView.getOverlays().add(getOverlay);

373            mapView.getOverlays()

374                    .add(newOverItemT(marker, LBSProjectActivity.this,

375                            geoPoint,""));

376            Log.i("11111111111111111111", geo.getLongitudeE6() / 1E6

377                    +"----------" + geo.getLatitudeE6() / 1E6);

378            returnsuper.onTap(geo, arg1);

379        }

380  

381    }

382  

383    privatestatic final int TOOLBAR0 = 0;

384    privatestatic final int TOOLBAR1 = 1;

385    privatestatic final int TOOLBAR2 = 2;

386    privatestatic final int TOOLBAR3 = 3;

387  

388    publicboolean onCreateOptionsMenu(Menu menu) {

389        menu.add(0, TOOLBAR0,1, "KTV").setIcon(

390                android.R.drawable.ic_btn_speak_now);

391        menu.add(0, TOOLBAR1,2, "学校").setIcon(

392                android.R.drawable.ic_menu_myplaces);

393        menu.add(0, TOOLBAR2,3, "餐厅").setIcon(

394                android.R.drawable.ic_menu_my_calendar);

395        menu.add(0, TOOLBAR3,4, "公园").setIcon(

396                android.R.drawable.ic_menu_gallery);

397        returnsuper.onCreateOptionsMenu(menu);

398    }

399  

400    @Override

401    publicboolean onOptionsItemSelected(MenuItem item) {

402        switch(item.getItemId()) {

403        case0:

404            mSearch.poiSearchNearBy("KTV", geoPoint,5000);//搜索ktv

405            break;

406        case1:

407            mSearch.poiSearchNearBy("学校", geoPoint,5000);//.搜索学校

408            break;

409        case2:

410            mSearch.poiSearchNearBy("餐厅", geoPoint,5000);//搜索餐厅

411            break;

412        case3:

413            mSearch.poiSearchNearBy("公园", geoPoint,5000);//搜索公园

414            break;

415        }

416  

417        returnsuper.onOptionsItemSelected(item);

418    }

419  

420}