android百度地图开发V4.5最新版（8）---POI搜索之周边搜索

这篇博客介绍周边搜索，全城搜索请看我的博文。

 

android百度地图开发V4.5最新版（7）---POI搜索之全城搜索

周边搜索主要做以下几件事情：

1：实现位置的定位功能。并且将其marker到地图上。

代码如下：

/** * 定位SDK监听函数 */public MyLocationListenner myListener = new MyLocationListenner();public class MyLocationListenner implements BDLocationListener {    @Override    public void onReceiveLocation(BDLocation location) {        // map view 销毁后不在处理新接收的位置        if (location == null || mMapView == null) {            return;        }        mCurrentLat = location.getLatitude();        mCurrentLon = location.getLongitude();        mCurrentAccracy = location.getRadius();        center = new LatLng(mCurrentLat, mCurrentLon);        locData = new MyLocationData.Builder()                .accuracy(location.getRadius())                // 此处设置开发者获取到的方向信息，顺时针0-360                .direction(mCurrentDirection).latitude(location.getLatitude())                .longitude(location.getLongitude()).build();        mBaiduMap.setMyLocationData(locData);        if (isFirstLoc) {            isFirstLoc = false;            LatLng ll = new LatLng(location.getLatitude(),                    location.getLongitude());            MapStatus.Builder builder = new MapStatus.Builder();            builder.target(ll).zoom(18.0f);            mBaiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));        }    }    public void onReceivePoi(BDLocation poiLocation) {    }}

2：设定周边的区域范围是多少：

int radius = 1000;

3：绘制定位的overlay到地图上

/** * 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);}

4：处理周边搜索的点击响应事件：

/** * 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);}

第五步：处理搜索结果：

/** * 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);        List<PoiInfo> poiInfoList=result.getAllPoi();        for(PoiInfo poiInfo:poiInfoList){            Log.e("搜索信息","地址"+poiInfo.address+"名字"+poiInfo.name+"电话"+poiInfo.phoneNum);        }        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();    }}

第六步：在oncreat中添加定位的相关配置：

// 开启定位图层mBaiduMap.setMyLocationEnabled(true);// 定位初始化mLocClient = new LocationClient(this);mLocClient.registerLocationListener(myListener);LocationClientOption option = new LocationClientOption();option.setOpenGps(true); // 打开gpsoption.setCoorType("bd09ll"); // 设置坐标类型option.setScanSpan(1000);mLocClient.setLocOption(option);mLocClient.start();

第七步：处理marker的点击事件：

/** * 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();        Log.e("结果",result.getName() + ": " + result.getAddress());        tv_test.clearFocus();        tv_test.setText("poi位置信息!!!"+result.getName() + ": " + result.getAddress());    }}

以下为效果图

项目中overlay工具包下载请见：
百度地图工具包overlayutils,百度地图开发必备工具包

完成代码下载请查看：

百度地图使用详解