最新基于高德地图的android进阶开发（6）感兴趣点（POI）周边搜索源码浅析

1.今天研究了一下高德地图的POI周边搜索，以及改变下初始定位，主要涉及关键字搜索和以及marker展示，还包括搜索结果信息的获取。

2.下面直接上源码，上面都已注释

布局文件:poi_around_search.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:gravity="center_horizontal" ><RelativeLayout
        android:layout_width="match_parent"android:layout_height="match_parent" ><com.amap.api.maps.MapView
            android:id="@+id/mapView"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_alignParentLeft="true"android:layout_alignParentTop="true" ></com.amap.api.maps.MapView></RelativeLayout><RelativeLayout
        android:id="@+id/search_bar_layout"android:layout_width="match_parent"android:layout_height="48dp"android:layout_marginLeft="@dimen/offset_title"android:layout_marginRight="@dimen/offset_title"android:layout_marginStart="@dimen/offset_title"android:layout_marginTop="@dimen/offset_title"android:gravity="center_vertical"android:orientation="horizontal" ><TextView
            android:id="@+id/btn_search"android:layout_width="wrap_content"android:layout_height="match_parent"android:layout_alignParentEnd="true"android:layout_alignParentRight="true"android:layout_centerVertical="true"android:background="@drawable/offlinearrow_tab2_pressed"android:clickable="true"android:gravity="center"android:paddingEnd="12dp"android:paddingLeft="12dp"android:paddingRight="12dp"android:paddingStart="12dp"android:text="搜索"android:textColor="@color/white"android:textSize="12dp"/><LinearLayout
            android:layout_width="match_parent"android:layout_height="match_parent"android:layout_centerVertical="true"android:layout_toLeftOf="@+id/btn_search"android:layout_toStartOf="@+id/btn_search"android:background="@drawable/search_input_half"android:clickable="true"android:gravity="center_vertical" ><EditText
                android:id="@+id/input_edittext"android:layout_width="match_parent"android:layout_height="match_parent"android:drawableLeft="@drawable/search_input"android:background="@color/transparent"android:hint="请输入搜索关键字"android:textColorHint="@color/darkgrey"android:singleLine="true"android:textColor="@color/gary"android:textSize="14sp" /></LinearLayout></RelativeLayout><RelativeLayout
        android:id="@+id/poi_detail"android:layout_width="match_parent"android:layout_height="80dp"android:layout_alignParentBottom="true"android:background="@drawable/border_bg"android:visibility="gone"><TextView
            android:id="@+id/poi_name"android:layout_width="wrap_content"android:layout_height="30dp"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_marginLeft="12dp"android:layout_marginStart="12dp"android:ellipsize="end"android:gravity="center_vertical"android:singleLine="true"android:textColor="#5566b8"android:textSize="15sp" /><TextView
            android:id="@+id/poi_address"android:layout_width="wrap_content"android:layout_height="35dp"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_below="@id/poi_name"android:layout_marginLeft="12dp"android:layout_marginStart="12dp"android:gravity="center_vertical"android:singleLine="true"android:textColor="#333333"android:textSize="15sp" /></RelativeLayout></RelativeLayout>

3.代码文件：PoiAroundSearch.java

package com.dragon.arnav.basicFuction.locationMap;import android.app.Activity;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.RelativeLayout;
import android.widget.TextView;import com.amap.api.maps.AMap;
import com.amap.api.maps.CameraUpdateFactory;
import com.amap.api.maps.MapView;
import com.amap.api.maps.model.BitmapDescriptor;
import com.amap.api.maps.model.BitmapDescriptorFactory;
import com.amap.api.maps.model.CircleOptions;
import com.amap.api.maps.model.LatLng;
import com.amap.api.maps.model.LatLngBounds;
import com.amap.api.maps.model.Marker;
import com.amap.api.maps.model.MarkerOptions;
import com.amap.api.services.core.LatLonPoint;
import com.amap.api.services.core.PoiItem;
import com.amap.api.services.core.SuggestionCity;
import com.amap.api.services.poisearch.PoiResult;
import com.amap.api.services.poisearch.PoiSearch;
import com.dragon.arnav.R;
import com.dragon.arnav.basicFuction.util.ToastUtil;import java.util.ArrayList;
import java.util.List;/*** This file created by dragon on 2016/8/4 13:19,* belong to com.dragon.arnav.basicFuction.locationMap .*/
public class PoiAroundSearch extends Activity implements OnClickListener,AMap.OnMapClickListener,AMap.OnInfoWindowClickListener,AMap.InfoWindowAdapter,AMap.OnMarkerClickListener,PoiSearch.OnPoiSearchListener {private MapView mapView;private AMap mAMap;//地图对象private PoiResult poiResult;//the result of the poiprivate int currentPage = 0;//the page start with 0private PoiSearch.Query query;//poi query//当前定位在深圳市南山区，这个经纬度应该是经过偏移的，具体原因，相信你懂的private LatLonPoint lp=new LatLonPoint(22.528402,113.938963);private Marker locationMarker;//选择点private Marker detailMarker;private Marker mlastMarker;private PoiSearch poiSearch;private myPoiOverlay poiOverlay;//poi图层private List<PoiItem> poiItems;//poi数据private PoiItem mPoi;private RelativeLayout mPoiDetail;private TextView mPoiName,mPoiAddress;private String keyWord = "";private EditText mSearchText;@Overrideprotected void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.poi_around_search);
//        基本操作mapView = (MapView)findViewById(R.id.mapView);mapView.onCreate(savedInstanceState);init();}
//AMap对象的初始化private void init(){if(mAMap == null){mAMap = mapView.getMap();
//            AMap对象的监事件mAMap.setOnMapClickListener(this);mAMap.setOnMarkerClickListener(this);mAMap.setOnInfoWindowClickListener(this);mAMap.setInfoWindowAdapter(this);
//            获取相关控件TextView searchButton = (TextView)findViewById(R.id.btn_search);searchButton.setOnClickListener(this);
//初始位置标记locationMarker = mAMap.addMarker(new MarkerOptions().anchor(0.5f,0.5f).icon(BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(),R.drawable.point4))).position(new LatLng(lp.getLatitude(),lp.getLongitude())));locationMarker.showInfoWindow();}setup();
//        显示摄像头的大小mAMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(lp.getLatitude(),lp.getLongitude()),14));}private void setup(){mPoiDetail = (RelativeLayout)findViewById(R.id.poi_detail);mPoiDetail.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v){}});mPoiName =(TextView)findViewById(R.id.poi_name);mPoiAddress = (TextView)findViewById(R.id.poi_address);mSearchText = (EditText)findViewById(R.id.input_edittext);}//    begin poi serchprotected void doSearchQuery(){//Trim() 函数的功能是去掉首尾空格keyWord = mSearchText.getText().toString().trim();currentPage = 0;// 第一个参数表示搜索字符串，第二个参数表示poi搜索类型，第三个参数表示poi搜索区域（空字符串代表全国）query = new PoiSearch.Query(keyWord,"","深圳市");query.setPageSize(20);//setting how mang itmes to return;query.setPageNum(currentPage);//setup query the first page;if(lp!=null){poiSearch = new PoiSearch(this,query);poiSearch.setOnPoiSearchListener(this);// 设置搜索区域为以lp点为圆心，其周围5000米范围poiSearch.setBound(new PoiSearch.SearchBound(lp,5000,true));poiSearch.searchPOIAsyn();//asyn search}}@Overrideprotected void onResume(){super.onResume();mapView.onResume();whetherToShowDetailInfo(false);}@Overrideprotected void onPause(){super.onPause();mapView.onPause();}@Overrideprotected void onSaveInstanceState(Bundle outState){super.onSaveInstanceState(outState);mapView.onSaveInstanceState(outState);}@Overrideprotected void onDestroy(){super.onDestroy();mapView.onDestroy();}@Overridepublic void onPoiItemSearched(PoiItem arg0,int arg1){}
//    搜索成功时的回调@Overridepublic void onPoiSearched(PoiResult result, int rcode){if(rcode ==1000){
//            检测搜索结果if(result!=null && result.getQuery()!=null){
//                是否是同一条if(result.getQuery().equals(query)){poiResult = result;poiItems = poiResult.getPois();
//                   获取poitem数据List<SuggestionCity> suggestionCities = poiResult.getSearchSuggestionCitys();if(poiItems !=null && poiItems.size()>0) {//清楚POI信息whetherToShowDetailInfo(false);
//                        并还原点击marker样式if (mlastMarker != null) {resetlastmarker();}
//                        清除之前的结果marker样式if (poiOverlay != null) {poiOverlay.removeFromMap();}
//                        新的markermAMap.clear();poiOverlay = new myPoiOverlay(mAMap, poiItems);poiOverlay.addToMap();poiOverlay.zoomToSpan();mAMap.addMarker(new MarkerOptions().anchor(0.5f, 0.5f).icon(BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.point4))).position(new LatLng(lp.getLatitude(), lp.getLongitude())));
//在地图上显示搜索范围圈mAMap.addCircle(new CircleOptions().center(new LatLng(lp.getLatitude(), lp.getLongitude())).radius(5000).strokeColor(Color.BLUE).fillColor(Color.argb(50, 1, 1, 1)).strokeWidth(2));}else if (suggestionCities !=null && suggestionCities.size()>0){showSuggestCity(suggestionCities);} else {ToastUtil.show(PoiAroundSearch.this,R.string.no_result);}}}else {ToastUtil.show(PoiAroundSearch.this,R.string.no_result);}}}public boolean onMarkerClick(Marker marker) {if (marker.getObject() != null) {
//            显示相关的位置信息whetherToShowDetailInfo(true);try {PoiItem mCurrentPoi = (PoiItem) marker.getObject();if (mlastMarker == null) {mlastMarker = marker;} else {
//                    还原原来的markerresetlastmarker();mlastMarker = marker;}detailMarker = marker;
//                按下后的显示图标detailMarker.setIcon(BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.poi_marker_pressed)));setPoiItemDisplayContent(mCurrentPoi);} catch (Exception e) {}} else {whetherToShowDetailInfo(false);resetlastmarker();}return true;}
//    将之前点击的marker还原为原来的状态private void resetlastmarker() {int index = poiOverlay.getPoiIndex(mlastMarker);
//        10个以内的marker显示图标if(index<10){mlastMarker.setIcon(BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(),markers[index])));}else{
//            大于10个后的marker显示图标信息mlastMarker.setIcon(BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(),R.drawable.marker_other_highlight)));}mlastMarker = null;}private void setPoiItemDisplayContent(final PoiItem mCurrentPoi){mPoiName.setText(mCurrentPoi.getTitle());mPoiAddress.setText(mCurrentPoi.getSnippet());}@Overridepublic View getInfoContents(Marker arg0){return null;}@Overridepublic View getInfoWindow(Marker arg0){return null;}@Overridepublic void onInfoWindowClick(Marker arg0){}@Overridepublic void onClick(View v){switch (v.getId()) {case R.id.btn_search:doSearchQuery();break;default:break;}}private int[] markers = {R.drawable.poi_marker_1,R.drawable.poi_marker_2,R.drawable.poi_marker_3,R.drawable.poi_marker_4,R.drawable.poi_marker_5,R.drawable.poi_marker_6,R.drawable.poi_marker_7,R.drawable.poi_marker_8,R.drawable.poi_marker_9,R.drawable.poi_marker_10,};private void whetherToShowDetailInfo(boolean isToShow){if(isToShow){mPoiDetail.setVisibility(View.VISIBLE);}else {mPoiDetail.setVisibility(View.GONE);}}@Overridepublic void onMapClick(LatLng arg0){whetherToShowDetailInfo(false);if(mlastMarker!=null){resetlastmarker();}}private void showSuggestCity(List<SuggestionCity> cities){String infomation = "推荐城市\n";for(int i = 0;i<cities.size();i++){infomation += "城市名称：" + cities.get(i).getCityName() + "城市区号：" + cities.get(i).getCityCode() + "城市编码：" + cities.get(i).getAdCode() + "\n";}ToastUtil.show(this,infomation);}
//myPoiOverlay类，该类下面有多个方法private class myPoiOverlay{private AMap mamap;private List<PoiItem> mPois;private ArrayList<Marker> mPoiMarks = new ArrayList<Marker>();
//    构造函数，传进来的是amap对象和查询到的结果itmes  mPoispublic myPoiOverlay(AMap amap,List<PoiItem>pois){mamap = amap;mPois = pois;}//增加Maker到地图中public void addToMap(){for(int i=0;i<mPois.size();i++){Marker marker = mamap.addMarker(getMarkerOptions(i));PoiItem item = mPois.get(i);marker.setObject(item);mPoiMarks.add(marker);}}
//移除所有的markerpublic void removeFromMap(){for(Marker mark: mPoiMarks){mark.remove();}}
//移动镜头到当前的视角public void zoomToSpan(){if(mPois !=null && mPois.size()>0){if(mamap ==null) return;LatLngBounds bounds = getLatLngBounds();
//            瞬间移动到目标位置mamap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds,100));}}private LatLngBounds getLatLngBounds(){LatLngBounds.Builder b = LatLngBounds.builder();for(int i=0;i<mPois.size();i++){b.include(new LatLng(mPois.get(i).getLatLonPoint().getLatitude(),mPois.get(i).getLatLonPoint().getLongitude()));}return b.build();}private MarkerOptions getMarkerOptions(int index){return new MarkerOptions().position(new LatLng(mPois.get(index).getLatLonPoint().getLatitude(),mPois.get(index).getLatLonPoint().getLongitude())).title(getTitle(index)).snippet(getSnippet(index)).icon(getBitmapDescriptor(index));}protected String getTitle(int index){return mPois.get(index).getTitle();}protected String getSnippet(int index){return mPois.get(index).getSnippet();}
//获取位置，第几个index就第几个poipublic int getPoiIndex(Marker marker){for(int i=0;i<mPoiMarks.size();i++){if(mPoiMarks.get(i).equals(marker)){return i;}}return -1;}public PoiItem getPoiItem(int index) {if (index < 0 || index >= mPois.size()) {return null;}return mPois.get(index);}protected BitmapDescriptor getBitmapDescriptor(int arg0){if(arg0<10){BitmapDescriptor icon = BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(),markers[arg0]));return icon;}else {BitmapDescriptor icon = BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(),R.drawable.marker_other_highlight));return icon;}}}}

最新基于高德地图的android进阶开发（6）感兴趣点（POI）周边搜索源码浅析

1.今天研究了一下高德地图的POI周边搜索，以及改变下初始定位，主要涉及关键字搜索和以及marker展示，还包括搜索结果信息的获取。

2.下面直接上源码，上面都已注释

布局文件:poi_around_search.xml

3.代码文件：PoiAroundSearch.java

github源码下载链接

专注于AR的在移动端的实现，如果你还有问题没解决，你可以加入我们一起交流。或是关注我们的技术公众号，这是提供技术干货的地方，你有干货可以向我们推荐。

如果你觉得写的不错，对你有用，请在下面点个顶支持一下嘛，有问题可以在下面留言评论。

最新基于高德地图的android进阶开发（6）感兴趣点（POI）周边搜索源码浅析相关推荐

最新文章

热门文章

最新基于高德地图的android进阶开发（6）感兴趣点（POI）周边搜索源码浅析

1.今天研究了一下高德地图的POI周边搜索，以及改变下初始定位，主要涉及关键字搜索和以及marker展示，还包括搜索结果信息的获取。

2.下面直接上源码，上面都已注释

布局文件:poi_around_search.xml

3.代码文件：PoiAroundSearch.java

github源码下载链接

专注于AR的在移动端的实现，如果你还有问题没解决，你可以加入我们一起交流。或是关注我们的技术公众号，这是提供技术干货的地方，你有干货可以向我们推荐。

如果你觉得写的不错，对你有用，请在下面点个 顶 支持一下嘛，有问题可以在下面留言评论。

最新基于高德地图的android进阶开发（6）感兴趣点（POI）周边搜索源码浅析相关推荐

最新文章

热门文章

如果你觉得写的不错，对你有用，请在下面点个顶支持一下嘛，有问题可以在下面留言评论。