package baidumapsdk.demo.search;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.Toast;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.CircleOptions;
import com.baidu.mapapi.map.GroundOverlayOptions;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MarkerOptions;
import com.baidu.mapapi.map.OverlayOptions;
import com.baidu.mapapi.map.Stroke;
import com.baidu.mapapi.map.SupportMapFragment;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.model.LatLngBounds;
import com.baidu.mapapi.overlayutil.PoiOverlay;
import com.baidu.mapapi.search.core.CityInfo;
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.PoiIndoorResult;
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.poi.PoiSortType;
import com.baidu.mapapi.search.sug.OnGetSuggestionResultListener;
import com.baidu.mapapi.search.sug.SuggestionResult;
import com.baidu.mapapi.search.sug.SuggestionSearch;
import com.baidu.mapapi.search.sug.SuggestionSearchOption;
import java.util.ArrayList;
import java.util.List;
import baidumapsdk.demo.R;
/**
* 演示poi搜索功能
*/
public class PoiSearchDemo extends FragmentActivity implements
OnGetPoiSearchResultListener, OnGetSuggestionResultListener {
private PoiSearch mPoiSearch = null;
private SuggestionSearch mSuggestionSearch = null;
private BaiduMap mBaiduMap = null;
private List<String> suggest;
/**
* 搜索关键字输入窗口
*/
private EditText editCity = null;
private AutoCompleteTextView keyWorldsView = null;
private ArrayAdapter<String> sugAdapter = null;
private int loadIndex = 0;
LatLng center = new LatLng(39.92235, 116.380338);
int radius = 100;
LatLng southwest = new LatLng( 39.92235, 116.380338 );
LatLng northeast = new LatLng( 39.947246, 116.414977);
LatLngBounds searchbound = new LatLngBounds.Builder().include(southwest).include(northeast).build();
int searchType = 0; // 搜索的类型，在显示时区分
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_poisearch);
// 初始化搜索模块，注册搜索事件监听
mPoiSearch = PoiSearch.newInstance();
mPoiSearch.setOnGetPoiSearchResultListener(this);
// 初始化建议搜索模块，注册建议搜索事件监听
mSuggestionSearch = SuggestionSearch.newInstance();
mSuggestionSearch.setOnGetSuggestionResultListener(this);
editCity = (EditText) findViewById(R.id.city);
keyWorldsView = (AutoCompleteTextView) findViewById(R.id.searchkey);
sugAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line);
keyWorldsView.setAdapter(sugAdapter);
keyWorldsView.setThreshold(1);
mBaiduMap = ((SupportMapFragment) (getSupportFragmentManager()
.findFragmentById(R.id.map))).getBaiduMap();
/**
* 当输入关键字变化时，动态更新建议列表
*/
keyWorldsView.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable arg0) {
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
}
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2,
int arg3) {
if (cs.length() <= 0) {
return;
}
/**
* 使用建议搜索服务获取建议列表，结果在onSuggestionResult()中更新
*/
mSuggestionSearch
.requestSuggestion((new SuggestionSearchOption())
.keyword(cs.toString()).city(editCity.getText().toString()));
}
});
}
@Override
protected void onPause() {
super.onPause();
}
@Override
protected void onResume() {
super.onResume();
}
@Override
protected void onDestroy() {
mPoiSearch.destroy();
mSuggestionSearch.destroy();
super.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
}
/**
* 响应城市内搜索按钮点击事件
*
* @param v
*/
public void searchButtonProcess(View v) {
searchType = 1;
String citystr = editCity.getText().toString();
String keystr = keyWorldsView.getText().toString();
mPoiSearch.searchInCity((new PoiCitySearchOption())
.city(citystr).keyword(keystr).pageNum(loadIndex));
}
/**
* 响应周边搜索按钮点击事件
*
* @param v
*/
public void searchNearbyProcess(View v) {
searchType = 2;
PoiNearbySearchOption nearbySearchOption = new PoiNearbySearchOption().keyword(keyWorldsView.getText()
.toString()).sortType(PoiSortType.distance_from_near_to_far).location(center)
.radius(radius).pageNum(loadIndex);
mPoiSearch.searchNearby(nearbySearchOption);
}
public void goToNextPage(View v) {
loadIndex++;
searchButtonProcess(null);
}
/**
* 响应区域搜索按钮点击事件
*
* @param v
*/
public void searchBoundProcess(View v) {
searchType = 3;
mPoiSearch.searchInBound(new PoiBoundSearchOption().bound(searchbound)
.keyword(keyWorldsView.getText().toString()));
}
/**
* 获取POI搜索结果，包括searchInCity，searchNearby，searchInBound返回的搜索结果
* @param result
*/
public void onGetPoiResult(PoiResult result) {
if (result == null || result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {
Toast.makeText(PoiSearchDemo.this, "未找到结果", Toast.LENGTH_LONG)
.show();
return;
}
if (result.error == SearchResult.ERRORNO.NO_ERROR) {
mBaiduMap.clear();
PoiOverlay overlay = new MyPoiOverlay(mBaiduMap);
mBaiduMap.setOnMarkerClickListener(overlay);
overlay.setData(result);
overlay.addToMap();
overlay.zoomToSpan();
switch( searchType ) {
case 2:
showNearbyArea(center, radius);
break;
case 3:
showBound(searchbound);
break;
default:
break;
}
return;
}
if (result.error == SearchResult.ERRORNO.AMBIGUOUS_KEYWORD) {
// 当输入关键字在本市没有找到，但在其他城市找到时，返回包含该关键字信息的城市列表
String strInfo = "在";
for (CityInfo cityInfo : result.getSuggestCityList()) {
strInfo += cityInfo.city;
strInfo += ",";
}
strInfo += "找到结果";
Toast.makeText(PoiSearchDemo.this, strInfo, Toast.LENGTH_LONG)
.show();
}
}
/**
* 获取POI详情搜索结果，得到searchPoiDetail返回的搜索结果
* @param result
*/
public void onGetPoiDetailResult(PoiDetailResult result) {
if (result.error != SearchResult.ERRORNO.NO_ERROR) {
Toast.makeText(PoiSearchDemo.this, "抱歉，未找到结果", Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(PoiSearchDemo.this, result.getName() + ": " + result.getAddress(), Toast.LENGTH_SHORT)
.show();
}
}
@Override
public void onGetPoiIndoorResult(PoiIndoorResult poiIndoorResult) {
}
/**
* 获取在线建议搜索结果，得到requestSuggestion返回的搜索结果
* @param res
*/
@Override
public void onGetSuggestionResult(SuggestionResult res) {
if (res == null || res.getAllSuggestions() == null) {
return;
}
suggest = new ArrayList<String>();
for (SuggestionResult.SuggestionInfo info : res.getAllSuggestions()) {
if (info.key != null) {
suggest.add(info.key);
}
}
sugAdapter = new ArrayAdapter<String>(PoiSearchDemo.this, android.R.layout.simple_dropdown_item_1line, suggest);
keyWorldsView.setAdapter(sugAdapter);
sugAdapter.notifyDataSetChanged();
}
private class MyPoiOverlay extends PoiOverlay {
public MyPoiOverlay(BaiduMap baiduMap) {
super(baiduMap);
}
@Override
public boolean onPoiClick(int index) {
super.onPoiClick(index);
PoiInfo poi = getPoiResult().getAllPoi().get(index);
// if (poi.hasCaterDetails) {
mPoiSearch.searchPoiDetail((new PoiDetailSearchOption())
.poiUid(poi.uid));
// }
return true;
}
}
/**
* 对周边检索的范围进行绘制
* @param center
* @param radius
*/
public void showNearbyArea( LatLng center, int radius) {
BitmapDescriptor centerBitmap = BitmapDescriptorFactory
.fromResource(R.drawable.icon_geo);
MarkerOptions ooMarker = new MarkerOptions().position(center).icon(centerBitmap);
mBaiduMap.addOverlay(ooMarker);
OverlayOptions ooCircle = new CircleOptions().fillColor( 0xCCCCCC00 )
.center(center).stroke(new Stroke(5, 0xFFFF00FF ))
.radius(radius);
mBaiduMap.addOverlay(ooCircle);
}
/**
* 对区域检索的范围进行绘制
* @param bounds
*/
public void showBound( LatLngBounds bounds) {
BitmapDescriptor bdGround = BitmapDescriptorFactory
.fromResource(R.drawable.ground_overlay);
OverlayOptions ooGround = new GroundOverlayOptions()
.positionFromBounds(bounds).image(bdGround).transparency(0.8f);
mBaiduMap.addOverlay(ooGround);
MapStatusUpdate u = MapStatusUpdateFactory
.newLatLng(bounds.getCenter());
mBaiduMap.setMapStatus(u);
bdGround.recycle();
}
}