百度地图-实现POI的搜索(搜索周边)

package com.lbsproject; import java.util.ArrayList; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Point; import android.graphics.drawable.Drawable; import android.location.Criteria; import android.location.Location; import android.location.LocationManager; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import com.baidu.mapapi.BMapManager; import com.baidu.mapapi.GeoPoint; import com.baidu.mapapi.LocationListener; import com.baidu.mapapi.MKAddrInfo; import com.baidu.mapapi.MKDrivingRouteResult; import com.baidu.mapapi.MKPoiResult; import com.baidu.mapapi.MKSearch; import com.baidu.mapapi.MKSearchListener; import com.baidu.mapapi.MKTransitRouteResult; import com.baidu.mapapi.MKWalkingRouteResult; import com.baidu.mapapi.MapActivity; import com.baidu.mapapi.MapController; import com.baidu.mapapi.MapView; import com.baidu.mapapi.MyLocationOverlay; import com.baidu.mapapi.Overlay; import com.baidu.mapapi.PoiOverlay; import com.baidu.mapapi.Projection; import com.lbsproject.LBSProjectActivity.GetOverlay; public class LBSProjectActivity extends MapActivity { protected static final String TAG = null; private BMapManager mapManager; private MapView mapView; private MapController mapController; private MKSearch mSearch = null; private GeoPoint geoPoint = new GeoPoint(122084095, 37422006);; LocationListener mLocationListener = null; MyLocationOverlay mLocationOverlay = null; private EditText editCity; private EditText editGeoCodeKey; private EditText areaText; private GetOverlay getOverlay; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); getInitLoc();// 程序打开时候获取当前位置 显示地图上 mapManager = new BMapManager(getApplication()); // init方法的第一个参数需填入申请的APIKey mapManager.init("2150650BE0DCF874994B845CEC7B60A0518E6AFE", null); super.initMapActivity(mapManager); mapView = (MapView) findViewById(R.id.mapView); mapView.setBuiltInZoomControls(true); mapView.setDrawOverlayWhenZooming(true); // 添加定位图层 mLocationOverlay = new MyLocationOverlay(this, mapView); mapView.getOverlays().add(mLocationOverlay); getOverlay = new GetOverlay(); mapView.getOverlays().add(getOverlay); gotoLocate(); Button buttonGetPos = (Button) findViewById(R.id.buttonGetPos);//获取"我的位置的方法" buttonGetPos.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { getInitLoc(); gotoLocate(); } }); editCity = (EditText) findViewById(R.id.editTextCity); editGeoCodeKey = (EditText) findViewById(R.id.editTextAera); Button buttonSearchCity = (Button) findViewById(R.id.buttonSearchCity); buttonSearchCity.setOnClickListener(new View.OnClickListener() {//点击按钮定位需要去的地方 @Override public void onClick(View v) { mSearch.geocode(editGeoCodeKey.getText().toString(), editCity .getText().toString()); // mapView.getOverlays().add(getOverlay); } }); areaText = (EditText) findViewById(R.id.searchKeywords); Button buttonSearchArea = (Button) findViewById(R.id.buttonSearchArea); buttonSearchArea.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mSearch.poiSearchNearBy(areaText.getText().toString(),// 搜索XX附近5000米范围的XXX geoPoint, 5000); } }); // 注册定位事件 mLocationListener = new LocationListener() { public void onLocationChanged(Location location) { if (location != null) { Log.i(TAG, "" + location.getLatitude()); Log.i(TAG, "" + location.getLongitude()); geoPoint = new GeoPoint( (int) (location.getLatitude() * 1e6), (int) (location.getLongitude() * 1e6)); gotoLocate(); } } }; mSearch = new MKSearch();//搜索服务类 mSearch.init(mapManager, new MKSearchListener() { public void onGetAddrResult(MKAddrInfo res, int error) { if (error != 0) { String str = String.format("错误号：%d", error); Toast.makeText(LBSProjectActivity.this, str, Toast.LENGTH_LONG).show(); return; } mapView.getController().animateTo(res.geoPt); // String strInfo = String.format("纬度：%f 经度：%f\r\n", // res.geoPt.getLatitudeE6() / 1e6, // res.geoPt.getLongitudeE6() / 1e6); geoPoint = res.geoPt; // Toast.makeText(LBSProjectActivity.this, strInfo, // Toast.LENGTH_LONG).show(); Drawable marker = getResources().getDrawable( R.drawable.iconmarka); // 得到需要标在地图上的资源 marker.setBounds(0, 0, marker.getIntrinsicWidth(), marker.getIntrinsicHeight()); // 为maker定义位置和边界 mapView.getOverlays().clear(); mapView.getOverlays().add(getOverlay); mapView.getOverlays().add( new OverItemT(marker, LBSProjectActivity.this, res.geoPt, res.strAddr)); } public void onGetPoiResult(MKPoiResult res, int type, int error) { if (res == null) { Log.d("onGetPoiResult", "the onGetPoiResult res is " + type + "__" + error); } else Log.d("onGetPoiResult", "the onGetPoiResult res is " + res.getCurrentNumPois() + "__" + res.getNumPages() + "__" + res.getNumPois() + "__" + type + "__" + error); // 错误号可参考MKEvent中的定义 if (error != 0 || res == null) { Log.d("onGetPoiResult", "the onGetPoiResult res 0 "); Toast.makeText(LBSProjectActivity.this, "抱歉，未找到结果", Toast.LENGTH_LONG).show(); return; } ArrayList<MKPoiResult> poiResult = res.getMultiPoiResult(); if (poiResult != null) Log.d("onGetPoiResult", "the onGetPoiResult res 1__" + poiResult.size()); // 将地图移动到第一个POI中心点 if (res.getCurrentNumPois() > 0) { Log.d("onGetPoiResult", "the onGetPoiResult res 2"); // 将poi结果显示到地图上 PoiOverlay poiOverlay = new PoiOverlay( LBSProjectActivity.this, mapView); poiOverlay.setData(res.getAllPoi()); mapView.getOverlays().clear(); mapView.getOverlays().add(getOverlay); mapView.getOverlays().add(poiOverlay); mapView.invalidate(); mapView.getController().animateTo(res.getPoi(0).pt); } else if (res.getCityListNum() > 0) { Log.d("onGetPoiResult", "the onGetPoiResult res 3"); String strInfo = "在"; for (int i = 0; i < res.getCityListNum(); i++) { strInfo += res.getCityListInfo(i).city; strInfo += ","; } strInfo += "找到结果"; Toast.makeText(LBSProjectActivity.this, strInfo, Toast.LENGTH_LONG).show(); } Log.d("onGetPoiResult", "the onGetPoiResult res 4"); } public void onGetDrivingRouteResult(MKDrivingRouteResult res, int error) { } public void onGetTransitRouteResult(MKTransitRouteResult res, int error) { } public void onGetWalkingRouteResult(MKWalkingRouteResult res, int error) { } }); } private void gotoLocate() {// 获取所在位置 Drawable marker = getResources().getDrawable(R.drawable.iconmarka); // 得到需要标在地图上的资源 marker.setBounds(0, 0, marker.getIntrinsicWidth(), marker.getIntrinsicHeight()); // 为maker定义位置和边界 mapView.getOverlays().clear(); mapView.getOverlays().add(getOverlay); mapView.getOverlays().add( new OverItemT(marker, LBSProjectActivity.this, geoPoint, "")); mapView.getController().animateTo(geoPoint); mapController = mapView.getController(); // 设置地图的中心 mapController.setCenter(geoPoint); // 设置地图默认的缩放级别 mapController.setZoom(16); } private void getInitLoc() {// 初始化时候获取坐标 try { LocationManager locationManager; String context = Context.LOCATION_SERVICE; locationManager = (LocationManager) getSystemService(context); // String provider = LocationManager.GPS_PROVIDER; Criteria criteria = new Criteria(); criteria.setAccuracy(Criteria.ACCURACY_FINE); criteria.setAltitudeRequired(false); criteria.setBearingRequired(false); criteria.setCostAllowed(true); criteria.setPowerRequirement(Criteria.POWER_LOW); String provider = locationManager.getBestProvider(criteria, true); Location location = locationManager.getLastKnownLocation(provider); geoPoint = new GeoPoint((int) (location.getLatitude() * 1e6), (int) (location.getLongitude() * 1e6)); } catch (Exception e) { // TODO: handle exception } } @Override protected boolean isRouteDisplayed() { return false; } @Override protected void onDestroy() { if (mapManager != null) { // 程序退出前需调用此方法 mapManager.destroy(); mapManager = null; } super.onDestroy(); } @Override protected void onPause() { if (mapManager != null) { // 终止百度地图API mapManager.getLocationManager().removeUpdates(mLocationListener); mLocationOverlay.disableMyLocation(); mLocationOverlay.disableCompass(); // 关闭指南针 mapManager.stop(); } super.onPause(); } @Override protected void onResume() { if (mapManager != null) { // 开启百度地图API // 注册定位事件，定位后将地图移动到定位点 mapManager.getLocationManager().requestLocationUpdates( mLocationListener); mLocationOverlay.enableMyLocation(); mLocationOverlay.enableCompass(); // 打开指南针 mapManager.start(); } super.onResume(); } /** * * 实现MKSearchListener接口,用于实现异步搜索服务 * @author liufeng */ public class MySearchListener implements MKSearchListener { public void onGetAddrResult(MKAddrInfo result, int iError) { } public void onGetDrivingRouteResult(MKDrivingRouteResult result, int iError) { } /** * * 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 * 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） */ @Override public void onGetPoiResult(MKPoiResult result, int type, int iError) { if (result == null) { return; } // PoiOverlay是baidu map api提供的用于显示POI的Overlay PoiOverlay poioverlay = new PoiOverlay(LBSProjectActivity.this, mapView); // 设置搜索到的POI数据 poioverlay.setData(result.getAllPoi()); // 在地图上显示PoiOverlay（将搜索到的兴趣点标注在地图上） mapView.getOverlays().add(poioverlay); } public void onGetTransitRouteResult(MKTransitRouteResult result, int iError) { } public void onGetWalkingRouteResult(MKWalkingRouteResult result, int iError) { } } class GetOverlay extends Overlay { GeoPoint geo; @Override public void draw(Canvas canvas, MapView gmapView, boolean arg2) { super.draw(canvas, mapView, arg2); if (geo == null) { return; } Log.i("11111111111111111111", arg2 + "-------draw--"); } @Override public boolean onTap(GeoPoint geo, MapView arg1) { geoPoint = geo; Drawable marker = getResources().getDrawable(R.drawable.iconmarka); // 得到需要标在地图上的资源 marker.setBounds(0, 0, marker.getIntrinsicWidth(), marker.getIntrinsicHeight()); // 为maker定义位置和边界 mapView.getOverlays().clear(); mapView.getOverlays().add(getOverlay); mapView.getOverlays() .add(new OverItemT(marker, LBSProjectActivity.this, geoPoint, "")); Log.i("11111111111111111111", geo.getLongitudeE6() / 1E6 + "----------" + geo.getLatitudeE6() / 1E6); return super.onTap(geo, arg1); } } private static final int TOOLBAR0 = 0; private static final int TOOLBAR1 = 1; private static final int TOOLBAR2 = 2; private static final int TOOLBAR3 = 3; public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, TOOLBAR0, 1, "KTV").setIcon( android.R.drawable.ic_btn_speak_now); menu.add(0, TOOLBAR1, 2, "学校").setIcon( android.R.drawable.ic_menu_myplaces); menu.add(0, TOOLBAR2, 3, "餐厅").setIcon( android.R.drawable.ic_menu_my_calendar); menu.add(0, TOOLBAR3, 4, "公园").setIcon( android.R.drawable.ic_menu_gallery); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case 0: mSearch.poiSearchNearBy("KTV", geoPoint, 5000);//搜索ktv break; case 1: mSearch.poiSearchNearBy("学校", geoPoint, 5000);//.搜索学校 break; case 2: mSearch.poiSearchNearBy("餐厅", geoPoint, 5000);//搜索餐厅 break; case 3: mSearch.poiSearchNearBy("公园", geoPoint, 5000);//搜索公园 break; } return super.onOptionsItemSelected(item); } }