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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 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);
}}
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