高德定位+poi搜尋
阿新 • • 發佈：2019-01-25
package com.amap.map2d.demo.location; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.Window; import android.widget.ListView; import android.widget.RadioGroup; import android.widget.TextView; import com.amap.api.location.AMapLocation; import com.amap.api.location.AMapLocationClient; import com.amap.api.location.AMapLocationClientOption; import com.amap.api.location.AMapLocationListener; import com.amap.api.maps2d.AMap; import com.amap.api.maps2d.CameraUpdateFactory; import com.amap.api.maps2d.LocationSource; import com.amap.api.maps2d.MapView; import com.amap.api.maps2d.model.BitmapDescriptorFactory; import com.amap.api.maps2d.model.MyLocationStyle; import com.amap.api.services.core.AMapException; import com.amap.api.services.core.LatLonPoint; import com.amap.api.services.core.PoiItem; import com.amap.api.services.poisearch.PoiResult; import com.amap.api.services.poisearch.PoiSearch; import com.amap.map2d.demo.R; import com.amap.map2d.demo.adapter.CustomLocationAdapter; import java.util.ArrayList; import java.util.List; /** * AMapV2地圖中介紹自定義定位小藍點+搜尋周邊商務住宅 */ public class CustomLocationActivity extends Activity implements LocationSource, AMapLocationListener { private AMap aMap; private MapView mapView; private OnLocationChangedListener mListener; private AMapLocationClient mlocationClient; private AMapLocationClientOption mLocationOption; private RadioGroup mGPSModeGroup; private TextView mLocationErrText; private static final int STROKE_COLOR = Color.argb(180, 3, 145, 255); private static final int FILL_COLOR = Color.argb(10, 0, 0, 180); private ListView lv_listaddress; private CustomLocationAdapter madapter; private List list; private PoiSearch.Query query; private int currentPage = 0; private LatLonPoint lp;//當前位置 private PoiSearch poiSearch; @Override protected void onCreate(Bundle savedInstanceState) { Log.e("onCreate", "onCreate++++++"); super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE);// 不顯示程式的標題欄 setContentView(R.layout.locationsource_activity); mapView = (MapView) findViewById(R.id.map); mapView.onCreate(savedInstanceState);// 此方法必須重寫 init(); initlv(); } private void initlv() { list = new ArrayList<>(); lv_listaddress = (ListView) findViewById(R.id.lv_listaddress); } /** * 初始化 */ private void init() { Log.e("init", "init++++++"); if (aMap == null) { aMap = mapView.getMap(); setUpMap(); } mLocationErrText = (TextView) findViewById(R.id.location_errInfo_text); mLocationErrText.setVisibility(View.GONE); } /** * 設定一些amap的屬性 */ private void setUpMap() { Log.e("setUpMap", "setUpMap++++++"); aMap.setLocationSource(this);// 設定定位監聽 aMap.getUiSettings().setMyLocationButtonEnabled(true);// 設定預設定位按鈕是否顯示 aMap.setMyLocationEnabled(true);// 設定為true表示顯示定位層並可觸發定位，false表示隱藏定位層並不可觸發定位，預設是false setupLocationStyle(); } private void setupLocationStyle() { Log.e("setupLocationStyle", "setupLocationStyle++++++"); // 自定義系統定位藍點 MyLocationStyle myLocationStyle = new MyLocationStyle(); // 自定義定位藍點圖示 myLocationStyle.myLocationIcon(BitmapDescriptorFactory. fromResource(R.drawable.gps_point)); // 自定義精度範圍的圓形邊框顏色 myLocationStyle.strokeColor(STROKE_COLOR); //自定義精度範圍的圓形邊框寬度 myLocationStyle.strokeWidth(5); // 設定圓形的填充顏色 myLocationStyle.radiusFillColor(FILL_COLOR); // 將自定義的 myLocationStyle 物件新增到地圖上 aMap.setMyLocationStyle(myLocationStyle); } /** * 方法必須重寫 */ @Override protected void onResume() { Log.e("onResume", "onResume++++++"); super.onResume(); mapView.onResume(); } /** * 方法必須重寫 */ @Override protected void onPause() { Log.e("onPause", "onPause++++++"); super.onPause(); mapView.onPause(); deactivate(); } /** * 方法必須重寫 */ @Override protected void onSaveInstanceState(Bundle outState) { Log.e("onSaveInstanceState", "onSaveInstanceState++++++"); super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } /** * 方法必須重寫 */ @Override protected void onDestroy() { Log.e("onDestroy", "onDestroy++++++"); super.onDestroy(); mapView.onDestroy(); if (null != mlocationClient) { mlocationClient.onDestroy(); } } /** * 定位成功後回撥函式 */ @Override public void onLocationChanged(AMapLocation amapLocation) { Log.e("onLocationChanged", "onLocationChanged++++++"); if (mListener != null && amapLocation != null) { if (amapLocation != null && amapLocation.getErrorCode() == 0) { mLocationErrText.setVisibility(View.GONE); mListener.onLocationChanged(amapLocation);// 顯示系統小藍點 Log.e("current+address", amapLocation.getAddress()); Log.e("current+address", amapLocation.getPoiName()); //自定義小藍點外部圓的範圍 aMap.moveCamera(CameraUpdateFactory.zoomTo(30)); queryPoi(amapLocation); // aMap.moveCamera(CameraUpdateFactory.zoomTo(18)); Log.e("經緯度", "經度" + amapLocation.getLatitude() + "緯度=====" + amapLocation.getLongitude()); } else { String errText = "定位失敗," + amapLocation.getErrorCode() + ": " + amapLocation.getErrorInfo(); Log.e("AmapErr", errText); mLocationErrText.setVisibility(View.VISIBLE); mLocationErrText.setText(errText); } } } /** * 查詢附近地址 */ private void queryPoi(AMapLocation amapLocation) { String keyword = ""; query = new PoiSearch.Query(keyword, "商務住宅", amapLocation.getProvince());// 第一個引數表示搜尋字串，第二個引數表示poi搜尋型別，第三個引數表示poi搜尋區域（空字串代表全國） query.setPageSize(100);// 設定每頁最多返回多少條poiitem query.setPageNum(currentPage);// 設定查第一頁 lp = new LatLonPoint(amapLocation.getLatitude(), amapLocation.getLongitude()); if (lp != null) { poiSearch = new PoiSearch(this, query); poiSearch.setOnPoiSearchListener(new PoiSearch.OnPoiSearchListener() { @Override public void onPoiSearched(PoiResult poiResult, int i) { if (i == AMapException.CODE_AMAP_SUCCESS) { if (poiResult != null && poiResult.getQuery() != null) {// 搜尋poi的結果 if (poiResult.getQuery().equals(query)) {// 是否是同一條 list = poiResult.getPois(); if (list != null && list.size() > 0) { if (madapter == null) { madapter = new CustomLocationAdapter(CustomLocationActivity.this, list); lv_listaddress.setAdapter(madapter); } madapter.notifyDataSetChanged(); } } } } else { Log.e("error", "失敗"); } } @Override public void onPoiItemSearched(PoiItem poiItem, int i) { } }); poiSearch.setBound(new PoiSearch.SearchBound(lp, 3000, true));// // 設定搜尋區域為以lp點為圓心，其周圍3000米範圍 poiSearch.searchPOIAsyn();// 非同步搜尋 } } /** * 啟用定位 */ @Override public void activate(OnLocationChangedListener listener) { Log.e("activate", "activate++++++"); mListener = listener; if (mlocationClient == null) { mlocationClient = new AMapLocationClient(this); mLocationOption = new AMapLocationClientOption(); //設定定位監聽 mlocationClient.setLocationListener(this); //設定定位模式為高精度模式，Battery_Saving 為低功耗模式，Device_Sensors是僅裝置模式 mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy); //設定是否犯規地址資訊）預設返回） mLocationOption.setNeedAddress(true); //設定是否只定位一次 mLocationOption.setOnceLocation(true); if (mLocationOption.isOnceLocationLatest()) { //設定setOnceLocationLatest(boolean b)介面為true，啟動定位時SDK會返回最近3s內精度最高的一次定位結果。 //如果設定其為true，setOnceLocation(boolean b)介面也會被設定為true，反之不會。 mLocationOption.setOnceLocationLatest(true); } //設定是否強制重新整理wify，預設為強制 mLocationOption.setWifiActiveScan(true); //設定是否允許模擬位置 ，預設為FALSE不允許 mLocationOption.setMockEnable(false); //設定定位間隔 單位毫秒，預設為2000ms mLocationOption.setInterval(2000); //給定位客戶端設定引數 mlocationClient.setLocationOption(mLocationOption); // 此方法為每隔固定時間會發起一次定位請求，為了減少電量消耗或網路流量消耗， // 注意設定合適的定位時間的間隔（最小間隔支援為2000ms），並且在合適時間呼叫stopLocation()方法來取消定位請求 // 在定位結束後，在合適的生命週期呼叫onDestroy()方法 // 在單次定位情況下，定位無論成功與否，都無需呼叫stopLocation()方法移除請求，定位sdk內部會移除 mlocationClient.startLocation(); } } /** * 停止定位 */ @Override public void deactivate() { Log.e("deactivate", "deactivate++++++"); mListener = null; if (mlocationClient != null) { mlocationClient.stopLocation(); mlocationClient.onDestroy(); } mlocationClient = null; } }