百度地圖-實現POI的搜索(搜索周邊)

百度地圖-實現POI的搜索(搜索周邊) ：

1. package com.lbsproject;
3. import java.util.ArrayList;
5. import Android.content.Context;
6. import android.graphics.Canvas;
7. import android.graphics.Color;
8. import android.graphics.Paint;
9. import android.graphics.Point;
10. import android.graphics.drawable.Drawable;
11. import android.location.Criteria;
12. import android.location.Location;
13. import android.location.LocationManager;
14. import android.os.Bundle;
15. import android.util.Log;
16. import android.view.Menu;
17. import android.view.MenuItem;
18. import android.view.MotionEvent;
19. import android.view.View;
20. import android.widget.Button;
21. import android.widget.EditText;
22. import android.widget.Toast;
24. import com.baidu.mapapi.BMapManager;
25. import com.baidu.mapapi.GeoPoint;
26. import com.baidu.mapapi.LocationListener;
27. import com.baidu.mapapi.MKAddrInfo;
28. import com.baidu.mapapi.MKDrivingRouteResult;
29. import com.baidu.mapapi.MKPoiResult;
30. import com.baidu.mapapi.MKSearch;
31. import com.baidu.mapapi.MKSearchListener;
32. import com.baidu.mapapi.MKTransitRouteResult;
33. import com.baidu.mapapi.MKWalkingRouteResult;
34. import com.baidu.mapapi.MapActivity;
35. import com.baidu.mapapi.MapController;
36. import com.baidu.mapapi.MapView;
37. import com.baidu.mapapi.MyLocationOverlay;
38. import com.baidu.mapapi.Overlay;
39. import com.baidu.mapapi.PoiOverlay;
40. import com.baidu.mapapi.Projection;
41. import com.lbsproject.LBSProjectActivity.GetOverlay;
43. public class LBSProjectActivity extends MapActivity {
44. protected static final String TAG = null;
45. private BMapManager mapManager;
46. private MapView mapView;
47. private MapController mapController;
48. private MKSearch mSearch = null;
49. private GeoPoint geoPoint = new GeoPoint(122084095, 37422006);;
50. LocationListener mLocationListener = null;
51. MyLocationOverlay mLocationOverlay = null;
52. private EditText editCity;
53. private EditText editGeoCodeKey;
54. private EditText areaText;
55. private GetOverlay getOverlay;
57. @Override
58. public void onCreate(Bundle savedInstanceState) {
59. super.onCreate(savedInstanceState);
60. setContentView(R.layout.main);
62. getInitLoc();// 程序打開時候獲取當前位置 顯示地圖上
63. mapManager = new BMapManager(getApplication());
65. // init方法的第一個參數需填入申請的APIKey
66. mapManager.init("2150650BE0DCF874994B845CEC7B60A0518E6AFE", null);
67. super.initMapActivity(mapManager);
68. mapView = (MapView) findViewById(R.id.mapView);
69. mapView.setBuiltInZoomControls(true);
70. mapView.setDrawOverlayWhenZooming(true);
72. // 添加定位圖層
73. mLocationOverlay = new MyLocationOverlay(this, mapView);
74. mapView.getOverlays().add(mLocationOverlay);
75. getOverlay = new GetOverlay();
76. mapView.getOverlays().add(getOverlay);
78. gotoLocate();
80. Button buttonGetPos = (Button) findViewById(R.id.buttonGetPos);//獲取"我的位置的方法"
81. buttonGetPos.setOnClickListener(new View.OnClickListener() {
83. public void onClick(View v) {
84. getInitLoc();
85. gotoLocate();
86. }
87. });
89. editCity = (EditText) findViewById(R.id.editTextCity);
90. editGeoCodeKey = (EditText) findViewById(R.id.editTextAera);
91. Button buttonSearchCity = (Button) findViewById(R.id.buttonSearchCity);
92. buttonSearchCity.setOnClickListener(new View.OnClickListener() {//點擊按鈕定位需要去的地方
94. @Override
95. public void onClick(View v) {
97. mSearch.geocode(editGeoCodeKey.getText().toString(), editCity
98. .getText().toString());
99. // mapView.getOverlays().add(getOverlay);
101. }
102. });
103. areaText = (EditText) findViewById(R.id.searchKeywords);
104. Button buttonSearchArea = (Button) findViewById(R.id.buttonSearchArea);
105. buttonSearchArea.setOnClickListener(new View.OnClickListener() {
107. @Override
108. public void onClick(View v) {
111. mSearch.poiSearchNearBy(areaText.getText().toString(),// 搜索XX附近5000米范圍的XXX
112. geoPoint, 5000);
114. }
115. });
117. // 注冊定位事件
118. mLocationListener = new LocationListener() {
119. public void 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. }
130. };
132. mSearch = new MKSearch();//搜索服務類
133. mSearch.init(mapManager, new MKSearchListener() {
134. public void onGetAddrResult(MKAddrInfo res, int error) {
135. if (error != 0) {
136. String str = String.format("錯誤號：%d", error);
137. Toast.makeText(LBSProjectActivity.this, str,
138. Toast.LENGTH_LONG).show();
139. return;
140. }
142. mapView.getController().animateTo(res.geoPt);
144. // String strInfo = String.format("緯度：%f 經度：%f\r\n",
145. // res.geoPt.getLatitudeE6() / 1e6,
146. // res.geoPt.getLongitudeE6() / 1e6);
148. geoPoint = res.geoPt;
150. // Toast.makeText(LBSProjectActivity.this, strInfo,
151. // Toast.LENGTH_LONG).show();
152. Drawable marker = getResources().getDrawable(
153. R.drawable.iconmarka); // 得到需要標在地圖上的資源
154. marker.setBounds(0, 0, marker.getIntrinsicWidth(),
155. marker.getIntrinsicHeight()); // 為maker定義位置和邊界
156. mapView.getOverlays().clear();
157. mapView.getOverlays().add(getOverlay);
158. mapView.getOverlays().add(
159. new OverItemT(marker, LBSProjectActivity.this,
160. res.geoPt, res.strAddr));
161. }
163. public void 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);
175. // 錯誤號可參考MKEvent中的定義
176. if (error != 0 || res == null) {
177. Log.d("onGetPoiResult", "the onGetPoiResult res 0 ");
178. Toast.makeText(LBSProjectActivity.this, "抱歉，未找到結果",
179. Toast.LENGTH_LONG).show();
180. return;
181. }
183. ArrayList<MKPoiResult> poiResult = res.getMultiPoiResult();
184. if (poiResult != null)
185. Log.d("onGetPoiResult", "the onGetPoiResult res 1__"
186. + poiResult.size());
187. // 將地圖移動到第一個POI中心點
188. if (res.getCurrentNumPois() > 0) {
189. Log.d("onGetPoiResult", "the onGetPoiResult res 2");
190. // 將poi結果顯示到地圖上
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 += "找到結果";
207. Toast.makeText(LBSProjectActivity.this, strInfo,
208. Toast.LENGTH_LONG).show();
209. }
211. Log.d("onGetPoiResult", "the onGetPoiResult res 4");
213. }
215. public void onGetDrivingRouteResult(MKDrivingRouteResult res,
216. int error) {
217. }
219. public void onGetTransitRouteResult(MKTransitRouteResult res,
220. int error) {
221. }
223. public void onGetWalkingRouteResult(MKWalkingRouteResult res,
224. int error) {
225. }
227. });
229. }
231. private void gotoLocate() {// 獲取所在位置
232. Drawable marker = getResources().getDrawable(R.drawable.iconmarka); // 得到需要標在地圖上的資源
233. marker.setBounds(0, 0, marker.getIntrinsicWidth(),
234. marker.getIntrinsicHeight()); // 為maker定義位置和邊界
235. mapView.getOverlays().clear();
236. mapView.getOverlays().add(getOverlay);
237. mapView.getOverlays().add(
238. new OverItemT(marker, LBSProjectActivity.this, geoPoint, ""));
240. mapView.getController().animateTo(geoPoint);
241. mapController = mapView.getController();
242. // 設置地圖的中心
243. mapController.setCenter(geoPoint);
244. // 設置地圖默認的縮放級別
245. mapController.setZoom(16);
246. }
248. private void getInitLoc() {// 初始化時候獲取坐標
249. try {
251. LocationManager locationManager;
252. String context = Context.LOCATION_SERVICE;
253. locationManager = (LocationManager) getSystemService(context);
254. // String provider = LocationManager.GPS_PROVIDER;
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. }
271. @Override
272. protected boolean isRouteDisplayed() {
273. return false;
274. }
276. @Override
277. protected void onDestroy() {
278. if (mapManager != null) {
279. // 程序退出前需調用此方法
280. mapManager.destroy();
281. mapManager = null;
282. }
283. super.onDestroy();
284. }
286. @Override
287. protected void onPause() {
288. if (mapManager != null) {
289. // 終止百度地圖API
290. mapManager.getLocationManager().removeUpdates(mLocationListener);
291. mLocationOverlay.disableMyLocation();
292. mLocationOverlay.disableCompass(); // 關閉指南針
293. mapManager.stop();
294. }
295. super.onPause();
296. }
298. @Override
299. protected void onResume() {
300. if (mapManager != null) {
301. // 開啟百度地圖API
302. // 注冊定位事件，定位後將地圖移動到定位點
303. mapManager.getLocationManager().requestLocationUpdates(
304. mLocationListener);
305. mLocationOverlay.enableMyLocation();
306. mLocationOverlay.enableCompass(); // 打開指南針
307. mapManager.start();
308. }
309. super.onResume();
310. }
312. /**
313. * * 實現MKSearchListener接口,用於實現異步搜索服務 * @author liufeng
314. */
315. public class MySearchListener implements MKSearchListener {
317. public void onGetAddrResult(MKAddrInfo result, int iError) {
318. }
320. public void onGetDrivingRouteResult(MKDrivingRouteResult result,
321. int iError) {
322. }
324. /**
325. * * POI搜索結果（范圍檢索、城市POI檢索、周邊檢索） * * @param result 搜索結果 * @param type
326. * 返回結果類型（11,12,21:poi列表 7:城市列表） * @param iError 錯誤號（0表示正確返回）
327. */
328. @Override
329. public void onGetPoiResult(MKPoiResult result, int type, int iError) {
330. if (result == null) {
331. return;
332. }
333. // PoiOverlay是baidu map api提供的用於顯示POI的Overlay
334. PoiOverlay poioverlay = new PoiOverlay(LBSProjectActivity.this,
335. mapView);
336. // 設置搜索到的POI數據
337. poioverlay.setData(result.getAllPoi());
338. // 在地圖上顯示PoiOverlay（將搜索到的興趣點標注在地圖上）
339. mapView.getOverlays().add(poioverlay);
340. }
343. public void onGetTransitRouteResult(MKTransitRouteResult result,
344. int iError) {
345. }
348. public void onGetWalkingRouteResult(MKWalkingRouteResult result,
349. int iError) {
350. }
351. }
353. class GetOverlay extends Overlay {
354. GeoPoint geo;
356. @Override
357. public void 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. }
365. @Override
366. public boolean onTap(GeoPoint geo, MapView arg1) {
367. geoPoint = geo;
368. Drawable marker = getResources().getDrawable(R.drawable.iconmarka); // 得到需要標在地圖上的資源
369. marker.setBounds(0, 0, marker.getIntrinsicWidth(),
370. marker.getIntrinsicHeight()); // 為maker定義位置和邊界
371. mapView.getOverlays().clear();
372. mapView.getOverlays().add(getOverlay);
373. mapView.getOverlays()
374. .add(new OverItemT(marker, LBSProjectActivity.this,
375. geoPoint, ""));
376. Log.i("11111111111111111111", geo.getLongitudeE6() / 1E6
377. + "----------" + geo.getLatitudeE6() / 1E6);
378. return super.onTap(geo, arg1);
379. }
381. }
383. private static final int TOOLBAR0 = 0;
384. private static final int TOOLBAR1 = 1;
385. private static final int TOOLBAR2 = 2;
386. private static final int TOOLBAR3 = 3;
388. public boolean 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, "學校").setIcon(
392. android.R.drawable.ic_menu_myplaces);
393. menu.add(0, TOOLBAR2, 3, "餐廳").setIcon(
394. android.R.drawable.ic_menu_my_calendar);
395. menu.add(0, TOOLBAR3, 4, "公園").setIcon(
396. android.R.drawable.ic_menu_gallery);
397. return super.onCreateOptionsMenu(menu);
398. }
400. @Override
401. public boolean onOptionsItemSelected(MenuItem item) {
402. switch (item.getItemId()) {
403. case 0:
404. mSearch.poiSearchNearBy("KTV", geoPoint, 5000);//搜索ktv
405. break;
406. case 1:
407. mSearch.poiSearchNearBy("學校", geoPoint, 5000);//.搜索學校
408. break;
409. case 2:
410. mSearch.poiSearchNearBy("餐廳", geoPoint, 5000);//搜索餐廳
411. break;
412. case 3:
413. mSearch.poiSearchNearBy("公園", geoPoint, 5000);//搜索公園
414. break;
415. }
417. return super.onOptionsItemSelected(item);
418. }
420. }

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