高德地图,仿微信周边位置poi搜索
高德地图,仿微信周边位置poi搜索
首先要申请一个高德地图开发者账号,建立你的项目,得到key
高德地图官方文档都有介绍,具体可去配置
http://lbs.amap.com/api/android-sdk/guide/create-project/dev-attention
在AndroidManifest中添加一些权限,
把你申请的项目的key添加到value中来
在libs文件夹下添加需要的jar包
上代码,参照高德的poi文档进行实现,
http://lbs.amap.com/api/android-sdk/guide/map-data/poi/
主代码,Activity
public class New_LocalActivity extends Activity implements LocationSource, AMapLocationListener, AMap.OnCameraChangeListener, PoiSearch.OnPoiSearchListener { MapView mapView; ListView mapList; public static final String KEY_LAT = "lat"; public static final String KEY_LNG = "lng"; public static final String KEY_DES = "des"; public static final String KEY_SNI = "snippet"; private AMapLocationClient mLocationClient; private LocationSource.OnLocationChangedListener mListener; private LatLng latlng; private String city; private AMap aMap; private String deepType = "";// poi搜索类型 private String keyWord = "";// poi搜索字符串 private PoiSearch.Query query;// Poi查询条件类 private PoiSearch poiSearch; private PoiResult poiResult; // poi返回的结果 private PoiOverlay poiOverlay;// poi图层 private List<PoiItem> poiItems;// poi数据 private PoiSearch_adapter adapter; private TextView searchButton; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_new__local); mapView = (MapView) findViewById(R.id.map_local); mapList = (ListView) findViewById(R.id.map_list); mapView.onCreate(savedInstanceState); init(); } private void init() { if (aMap == null) { aMap = mapView.getMap(); aMap.setOnCameraChangeListener(this); setUpMap(); } deepType = "餐饮服务"; } //汽车维修|摩托车服务|餐饮服务|购物服务|生活服务|体育休闲服务|医疗保健服务| //住宿服务|风景名胜|商务住宅|*机构及社会团体|科教文化服务|交通设施服务| //金融保险服务|公司企业|道路附属设施|地名地址信息|公共设施 //-------- 定位 Start ------ private void setUpMap() { if (mLocationClient == null) { mLocationClient = new AMapLocationClient(getApplicationContext()); AMapLocationClientOption mLocationOption = new AMapLocationClientOption(); //设置定位监听 mLocationClient.setLocationListener(this); //设置为高精度定位模式 mLocationOption.setOnceLocation(true); mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy); //设置定位参数 mLocationClient.setLocationOption(mLocationOption); mLocationClient.startLocation(); } aMap.setLocationSource(this);// 设置定位监听 aMap.getUiSettings().setMyLocationButtonEnabled(true);// 设置默认定位按钮是否显示 aMap.setMyLocationEnabled(true);// 设置为true表示显示定位层并可触发定位，false表示隐藏定位层并不可触发定位，默认是false } /** * 开始进行poi搜索 */ protected void doSearchQuery() { aMap.setOnMapClickListener(null);// 进行poi搜索时清除掉地图点击事件 int currentPage = 0;
// 第一个参数表示搜索字符串keyWord，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("", deepType, "广州"); query.setPageSize(20);// 设置每页最多返回多少条poiitem query.setPageNum(currentPage);// 设置查第一页 LatLonPoint lp = new LatLonPoint(latlng.latitude, latlng.longitude); poiSearch = new PoiSearch(this, query); poiSearch.setOnPoiSearchListener(this); poiSearch.setBound(new PoiSearch.SearchBound(lp, 5000, true)); // 设置搜索区域为以lp点为圆心，其周围2000米范围 poiSearch.searchPOIAsyn();// 异步搜索 } @Override public void onLocationChanged(AMapLocation aMapLocation) { if (mListener != null && aMapLocation != null) { if (aMapLocation.getErrorCode() == 0) { // 显示我的位置 mListener.onLocationChanged(aMapLocation); //设置第一次焦点中心 latlng = new LatLng(aMapLocation.getLatitude(), aMapLocation.getLongitude()); aMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latlng, 14), 1000, null); city = aMapLocation.getProvince(); doSearchQuery(); } else { String errText = "定位失败," + aMapLocation.getErrorCode() + ": " + aMapLocation.getErrorInfo(); Log.e("AmapErr", errText); } } } @Override public void activate(OnLocationChangedListener listener) { mListener = listener; mLocationClient.startLocation(); } @Override public void deactivate() { mListener = null; if (mLocationClient != null) { mLocationClient.stopLocation(); mLocationClient.onDestroy(); } mLocationClient = null; } @Override public void onCameraChange(CameraPosition cameraPosition) { } @Override public void onCameraChangeFinish(CameraPosition cameraPosition) { latlng = cameraPosition.target; aMap.clear(); aMap.addMarker(new MarkerOptions().position(latlng)); doSearchQuery(); } ArrayList<LocationBean> data = new ArrayList<LocationBean>(); @Override public void onPoiSearched(PoiResult result, int rCode) { if (rCode == 1000) { if (result != null && result.getQuery() != null) {// 搜索poi的结果 if (result.getQuery().equals(query)) {// 是否是同一条 poiResult = result; poiItems = poiResult.getPois();// 取得第一页的poiitem数据，页数从数字0开始 data.clear(); for (PoiItem item : poiItems) { //获取经纬度对象 LatLonPoint llp = item.getLatLonPoint(); double lon = llp.getLongitude(); double lat = llp.getLatitude(); //获取标题 String title = item.getTitle(); //获取内容 String text = item.getSnippet(); data.add(new LocationBean(lon, lat, title, text)); } List<SuggestionCity> suggestionCities = poiResult .getSearchSuggestionCitys(); if (data != null && data.size() > 0) { adapter = new PoiSearch_adapter(this, data); mapList.setAdapter(adapter); mapList.setOnItemClickListener(new mOnItemClickListener()); } } } } } @Override public void onPoiItemSearched(PoiItem poiItem, int i) { }//-------- 定位 End ------ @Override protected void onResume() { super.onResume(); mLocationClient.startLocation(); } @Override protected void onPause() { super.onPause(); mLocationClient.stopLocation(); } @Override protected void onDestroy() { mLocationClient.onDestroy(); super.onDestroy(); } private class mOnItemClickListener implements AdapterView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Intent intent = new Intent(); intent.putExtra(KEY_LAT, poiItems.get(position).getLatLonPoint().getLatitude()); intent.putExtra(KEY_LNG, poiItems.get(position).getLatLonPoint().getLongitude()); intent.putExtra(KEY_DES, poiItems.get(position).getTitle()); intent.putExtra(KEY_SNI, poiItems.get(position).getSnippet()); setResult(RESULT_OK, intent); finish(); } }}
布局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <com.amap.api.maps2d.MapView android:id="@+id/map_local" android:layout_width="match_parent" android:layout_height="200dp"/> <ListView android:id="@+id/map_list" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="3" android:divider="#000" android:dividerHeight="1dp" android:scrollbars="none"/> </LinearLayout>
Bean类
public class LocationBean implements Serializable{ private double lon; private double lat; private String title; private String content; public LocationBean(double lon,double lat,String title,String content){ this.lon = lon; this.lat = lat; this.title = title; this.content = content; } public double getLon() { return lon; } public double getLat() { return lat; } public String getTitle() { return title; } public String getContent() { return content; } }
Adapter
public class PoiSearch_adapter extends BaseAdapter { private Context ctx; private List<LocationBean> list; public PoiSearch_adapter(Context context, List<LocationBean> poiList) { this.ctx = context; this.list = poiList; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { holder = new ViewHolder(); convertView = View.inflate(ctx, R.layout.poisearch_item, null); holder.poititle = (TextView) convertView.findViewById(R.id.poititle); holder.poititle2 = (TextView) convertView.findViewById(R.id.poititle2); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } LocationBean item = (LocationBean) getItem(position); holder.poititle.setText(item.getTitle()); holder.poititle2.setText(item.getContent()); return convertView; } private class ViewHolder { TextView poititle; TextView poititle2; } }
item布局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#d1cece" android:orientation="vertical" android:padding="8dp" > <TextView android:id="@+id/poititle" android:layout_width="match_parent" android:layout_height="wrap_content" android:ellipsize="end" android:layout_marginLeft="5dp" android:gravity="center_vertical" android:singleLine="true" android:textColor="#000" android:text="" android:textSize="16sp"/> <TextView android:id="@+id/poititle2" android:layout_width="match_parent" android:layout_height="wrap_content" android:ellipsize="end" android:layout_marginLeft="5dp" android:gravity="center_vertical" android:text="" android:singleLine="true" android:textColor="#000" android:textSize="16sp"/> </LinearLayout>