检索

package com.bdmap.view;

import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.model.LatLngBounds;
import com.baidu.mapapi.overlayutil.PoiOverlay;
import com.baidu.mapapi.search.core.PoiInfo;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;
import com.baidu.mapapi.search.poi.PoiBoundSearchOption;
import com.baidu.mapapi.search.poi.PoiCitySearchOption;
import com.baidu.mapapi.search.poi.PoiDetailResult;
import com.baidu.mapapi.search.poi.PoiDetailSearchOption;
import com.baidu.mapapi.search.poi.PoiNearbySearchOption;
import com.baidu.mapapi.search.poi.PoiResult;
import com.baidu.mapapi.search.poi.PoiSearch;
import com.baidu.mapapi.search.share.OnGetShareUrlResultListener;
import com.baidu.mapapi.search.share.ShareUrlResult;
import com.baidu.mapapi.search.share.ShareUrlSearch;

import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

/**
* POI检索 1.周边检索 2. 范围检索 3. 城市检索 4.详细检索
*
* @author ys
*
*/
public class PoiSearchActivity extends Activity implements OnClickListener {

private MapView mapView;
private BaiduMap bdMap;
//
private PoiSearch poiSearch;

private ShareUrlSearch shareUrlSearch;

private EditText editCityEt, editSearchKeyEt;

// 城市检索，区域检索，周边检索，下一组数据 按钮
private Button citySearchBtn, boundSearchBtn, nearbySearchBtn, nextDataBtn;

// 记录检索类型
private int type;
// 记录页标
private int page = 1;
private int totalPage = 0;

private double latitude = 39.9361752;
private double longitude = 116.400244;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_poi_search);
init();
}

private void init() {
mapView = (MapView) findViewById(R.id.mapview);
mapView.showZoomControls(false);
bdMap = mapView.getMap();
// 实例化PoiSearch对象
poiSearch = PoiSearch.newInstance();
// 设置检索监听器
poiSearch.setOnGetPoiSearchResultListener(poiSearchListener);
editCityEt = (EditText) findViewById(R.id.city);
editSearchKeyEt = (EditText) findViewById(R.id.searchkey);

citySearchBtn = (Button) findViewById(R.id.city_search_btn);
boundSearchBtn = (Button) findViewById(R.id.bound_search_btn);
nearbySearchBtn = (Button) findViewById(R.id.nearby_search_btn);
nextDataBtn = (Button) findViewById(R.id.next_data_btn);
nextDataBtn.setEnabled(false);
citySearchBtn.setOnClickListener(this);
boundSearchBtn.setOnClickListener(this);
nearbySearchBtn.setOnClickListener(this);
nextDataBtn.setOnClickListener(this);

editSearchKeyEt.addTextChangedListener(new TextWatcher() {

@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
citySearchBtn.setEnabled(true);
boundSearchBtn.setEnabled(true);
nearbySearchBtn.setEnabled(true);
nextDataBtn.setEnabled(false);
page = 1;
totalPage = 0;
}

@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {

}

@Override
public void afterTextChanged(Editable s) {

}
});

shareUrlSearch = ShareUrlSearch.newInstance();

}

/**
*
*/
OnGetPoiSearchResultListener poiSearchListener = new OnGetPoiSearchResultListener() {
@Override
public void onGetPoiResult(PoiResult poiResult) {
if (poiResult == null
|| poiResult.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {// 没有找到检索结果
Toast.makeText(PoiSearchActivity.this, "未找到结果",
Toast.LENGTH_LONG).show();
return;
}

if (poiResult.error == SearchResult.ERRORNO.NO_ERROR) {// 检索结果正常返回
bdMap.clear();
MyPoiOverlay poiOverlay = new MyPoiOverlay(bdMap);
poiOverlay.setData(poiResult);// 设置POI数据
bdMap.setOnMarkerClickListener(poiOverlay);
poiOverlay.addToMap();// 将所有的overlay添加到地图上
poiOverlay.zoomToSpan();
//
totalPage = poiResult.getTotalPageNum();// 获取总分页数
Toast.makeText(
PoiSearchActivity.this,
"总共查到" + poiResult.getTotalPoiNum() + "个兴趣点, 分为"
+ totalPage + "页", Toast.LENGTH_SHORT).show();

}
}

@Override
public void onGetPoiDetailResult(PoiDetailResult poiDetailResult) {
if (poiDetailResult.error != SearchResult.ERRORNO.NO_ERROR) {
Toast.makeText(PoiSearchActivity.this, "抱歉，未找到结果",
Toast.LENGTH_SHORT).show();
} else {// 正常返回结果的时候，此处可以获得很多相关信息
Toast.makeText(
PoiSearchActivity.this,
poiDetailResult.getName() + ": "
+ poiDetailResult.getAddress(),
Toast.LENGTH_LONG).show();
}
}
};

/**
* 短串检索监听器
*/
OnGetShareUrlResultListener shareUrlResultListener = new OnGetShareUrlResultListener() {

@Override
public void onGetPoiDetailShareUrlResult(ShareUrlResult arg0) {

}

@Override
public void onGetLocationShareUrlResult(ShareUrlResult arg0) {

}
};

class MyPoiOverlay extends PoiOverlay {

public MyPoiOverlay(BaiduMap arg0) {
super(arg0);
}

@Override
public boolean onPoiClick(int arg0) {
super.onPoiClick(arg0);
PoiInfo poiInfo = getPoiResult().getAllPoi().get(arg0);
poiSearch.searchPoiDetail(new PoiDetailSearchOption()
.poiUid(poiInfo.uid));
return true;
}

}

/**
* 城市内搜索
*/
private void citySearch(int page) {
// 设置检索参数
PoiCitySearchOption citySearchOption = new PoiCitySearchOption();
citySearchOption.city(editCityEt.getText().toString());// 城市
citySearchOption.keyword(editSearchKeyEt.getText().toString());// 关键字
citySearchOption.pageCapacity(15);// 默认每页10条
citySearchOption.pageNum(page);// 分页编号
// 发起检索请求
poiSearch.searchInCity(citySearchOption);
}

/**
* 范围检索
*/
private void boundSearch(int page) {
PoiBoundSearchOption boundSearchOption = new PoiBoundSearchOption();
LatLng southwest = new LatLng(latitude - 0.01, longitude - 0.012);// 西南
LatLng northeast = new LatLng(latitude + 0.01, longitude + 0.012);// 东北
LatLngBounds bounds = new LatLngBounds.Builder().include(southwest)
.include(northeast).build();// 得到一个地理范围对象
boundSearchOption.bound(bounds);// 设置poi检索范围
boundSearchOption.keyword(editSearchKeyEt.getText().toString());// 检索关键字
boundSearchOption.pageNum(page);
poiSearch.searchInBound(boundSearchOption);// 发起poi范围检索请求
}

/**
* 附近检索
*/
private void nearbySearch(int page) {
PoiNearbySearchOption nearbySearchOption = new PoiNearbySearchOption();
nearbySearchOption.location(new LatLng(latitude, longitude));
nearbySearchOption.keyword(editSearchKeyEt.getText().toString());
nearbySearchOption.radius(1000);// 检索半径，单位是米
nearbySearchOption.pageNum(page);
poiSearch.searchNearby(nearbySearchOption);// 发起附近检索请求
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.city_search_btn:
type = 0;
page = 1;
citySearchBtn.setEnabled(false);
boundSearchBtn.setEnabled(true);
nearbySearchBtn.setEnabled(true);
nextDataBtn.setEnabled(true);
bdMap.clear();
citySearch(page);
break;
case R.id.bound_search_btn:
type = 1;
page = 1;
citySearchBtn.setEnabled(true);
boundSearchBtn.setEnabled(false);
nearbySearchBtn.setEnabled(true);
nextDataBtn.setEnabled(true);
bdMap.clear();
boundSearch(page);
break;
case R.id.nearby_search_btn:
type = 2;
page = 1;
citySearchBtn.setEnabled(true);
boundSearchBtn.setEnabled(true);
nearbySearchBtn.setEnabled(false);
nextDataBtn.setEnabled(true);
bdMap.clear();
nearbySearch(page);
break;
case R.id.next_data_btn:
switch (type) {
case 0:
if (++page <= totalPage) {
citySearch(page);
} else {
Toast.makeText(PoiSearchActivity.this, "已经查到了最后一页~",
Toast.LENGTH_SHORT).show();
}
break;
case 1:
if (++page <= totalPage) {
boundSearch(page);
} else {
Toast.makeText(PoiSearchActivity.this, "已经查到了最后一页~",
Toast.LENGTH_SHORT).show();
}
break;
case 2:
if (++page <= totalPage) {
nearbySearch(page);
} else {
Toast.makeText(PoiSearchActivity.this, "已经查到了最后一页~",
Toast.LENGTH_SHORT).show();
}
break;
}
break;
default:
break;
}
}

@Override
protected void onResume() {
super.onResume();

4000
mapView.onResume();
}

@Override
protected void onPause() {
super.onPause();
mapView.onPause();
}

@Override
protected void onDestroy() {
super.onDestroy();
poiSearch.destroy();// 释放poi检索对象
mapView.onDestroy();
}