Android实现地图POI周边搜索 Android实现带列表的地图POI周边搜索功能

<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="0dp"
    android:layout_weight="2"/>

  <ListView
    android:id="@+id/map_list"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="3"
    android:divider="@color/space"
    android:dividerHeight="1dp"
    android:scrollbars="none"/>

</LinearLayout>

public class New_LocalActivity extends Activity implements LocationSource,
    AMapLocationListener, AMap.OnCameraChangeListener, PoiSearch.OnPoiSearchListener {

  @BindView(R.id.map_local)
  MapView mapView;
  @BindView(R.id.map_list)
  ListView mapList;

  public static final String KEY_LAT = "lat";
  public static final String KEY_LNG = "lng";
  public static final String KEY_DES = "des";


  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 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;


  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_new__local);
    ButterKnife.bind(this);
    mapView.onCreate(savedInstanceState);
    init();
  }

  private void init() {
    if (aMap == null) {
      aMap = mapView.getMap();
      aMap.setOnCameraChangeListener(this);
      setUpMap();
    }

    deepType = "餐饮";//这里以餐饮为例
  }

  //-------- 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();
    }
    // 自定义系统定位小蓝点
    MyLocationStyle myLocationStyle = new MyLocationStyle();
    myLocationStyle.myLocationIcon(BitmapDescriptorFactory
        .fromResource(R.drawable.location_marker));// 设置小蓝点的图标
    myLocationStyle.strokeColor(Color.BLACK);// 设置圆形的边框颜色
    myLocationStyle.radiusFillColor(Color.argb(100, 0, 0, 180));// 设置圆形的填充颜色
    myLocationStyle.strokeWidth(1.0f);// 设置圆形的边框粗细
    aMap.setMyLocationStyle(myLocationStyle);
    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;
    query = new PoiSearch.Query("", deepType, city);// 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.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();
  }

  @Override
  public void onPoiSearched(PoiResult result, int rCode) {
    if (rCode == 0) {
      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
          List<SuggestionCity> suggestionCities = poiResult
              .getSearchSuggestionCitys();
          if (poiItems != null && poiItems.size() > 0) {
            adapter = new PoiSearch_adapter(this, poiItems);
            mapList.setAdapter(adapter);
            mapList.setOnItemClickListener(new mOnItemClickListener());

           }
          }
          else {
            Logger.d("无结果");
          }
        }
      } else {
        Logger.e("无结果");
      }
    } else if (rCode == 27) {
      Logger.e("error_network");
    } else if (rCode == 32) {
      Logger.e("error_key");
    } else {
      Logger.e("error_other：" + rCode);
    }
  }

  @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());
      setResult(RESULT_OK, intent);
      finish();
    }
  }