Android Studio 百度地圖導航

package com.example.appview.mian_page.Frament.Anzhuang_Frament.ItemA_Activity;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.ActivityCompat;

import androidx.core.content.ContextCompat;

import android.Manifest;

import android.content.pm.PackageManager;

import android.os.Bundle;

import android.view.View;

import com.baidu.location.BDAbstractLocationListener;

import com.baidu.location.BDLocation;

import com.baidu.location.LocationClient;

import com.baidu.location.LocationClientOption;

import com.baidu.mapapi.CoordType;

import com.baidu.mapapi.SDKInitializer;

import com.baidu.mapapi.model.LatLng;

import com.baidu.mapapi.utils.route.BaiduMapRoutePlan;

import com.baidu.mapapi.utils.route.RouteParaOption;

import com.example.appview.R;

import com.example.appview.mian_page.Frament.Preject_Tance_Frament.ItemA_Activity.Preject_ItemA_AlterJZ;

import com.google.android.gms.maps.MapView;

import com.hjq.bar.OnTitleBarListener;

import java.util.ArrayList;

import java.util.List;

public class ItemA_Nav_Activity extends AppCompatActivity {

    double locationX;

    double locationy;

    public  LocationClient mLocationClient = null;

    private MapView mapView;

   // private MyLocationListener myListener = new MyLocationListener();

    @Override

    protected void onCreate(Bundle savedInstanceState){

        super.onCreate(savedInstanceState);

        SDKInitializer.initialize(getApplicationContext());

        SDKInitializer.setCoordType(CoordType.BD09LL);

        setContentView(R.layout.activity_item_anav);

        mLocationClient = new LocationClient(getApplicationContext());

        //宣告LocationClient類

       mLocationClient.registerLocationListener(new MyLocationListener());

        getPermissionMethod();

        getlocation();

        LatLng startPoint = new LatLng(39.915291, 116.403857);

        LatLng endPoint = new LatLng(40.056858, 116.308194);

        //構建RouteParaOption引數以及策略

        //也可以通過startName和endName來構造

        RouteParaOption paraOption = new RouteParaOption()

                .startPoint(startPoint)

                .endPoint(endPoint)

                .busStrategyType(RouteParaOption.EBusStrategyType.bus_recommend_way);

       //調起百度地圖

        try {

            BaiduMapRoutePlan.openBaiduMapTransitRoute(paraOption, this);

        } catch (Exception e) {

            e.printStackTrace();

        }

      //調起結束時及時呼叫finish方法以釋放相關資源

        BaiduMapRoutePlan.finish(this);

    }

    private void getlocation(){

        LocationClientOption option = new LocationClientOption();

        option.setIsNeedAddress(true);//可選，設定是否需要地址資訊，預設不需要

        option.setAddrType("all");

        mLocationClient.setLocOption(option);

        mLocationClient.start();

        //mLocationClient為第二步初始化過的LocationClient物件

        //需將配置好的LocationClientOption物件，通過setLocOption方法傳遞給LocationClient物件使用

        //更多LocationClientOption的配置，請參照類參考中LocationClientOption類的詳細說明

    }
//這個是根據獲取當前經緯度座標，然後到指定座標做導航。上面直接定義了兩個座標做測試。

    public class MyLocationListener extends BDAbstractLocationListener {

        @Override

        public void onReceiveLocation(BDLocation location){

            //此處的BDLocation為定位結果資訊類，通過它的各種get方法可獲取定位相關的全部結果

            //以下只列舉部分獲取經緯度相關（常用）的結果資訊

            //更多結果資訊獲取說明，請參照類參考中BDLocation類中的說明

            double latitude = location.getLatitude();    //獲取緯度資訊

            double longitude = location.getLongitude();  //獲取經度資訊

            //float radius = location.getRadius();      //獲取定位精度，預設值為0.0f

            //String coorType = location.getCoorType();

            //獲取經緯度座標型別，以LocationClientOption中設定過的座標型別為準

            int errorCode = location.getLocType();

            //獲取定位型別、定位錯誤返回碼，具體資訊可參照類參考中BDLocation類中的說明

            //此處的BDLocation為定位結果資訊類，通過它的各種get方法可獲取定位相關的全部結果

            //以下只列舉部分獲取地址相關的結果資訊

            //更多結果資訊獲取說明，請參照類參考中BDLocation類中的說明

            //String addr = location.getAddrStr();     //獲取詳細地址資訊

            String country = location.getCountry();    //獲取國家

            String province = location.getProvince();  //獲取省份

            String city = location.getCity();          //獲取城市

            String district = location.getDistrict();  //獲取區縣

            String street = location.getStreet();      //獲取街道資訊

            //String adcode = location.getAdCode();     //獲取adcode

            String town = location.getTown();          //獲取鄉鎮資訊

            String str=country+"-"+province+"-"+city+"-"+district+"-"+street+"-"+town;

            locationX=latitude;

            locationy=longitude;

        }

    }

    // 許可權請求

    private void getPermissionMethod() {

        List<String> permissionList = new ArrayList<>();

        if(ContextCompat.checkSelfPermission(ItemA_Nav_Activity.this, Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED){

            permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION);

        }

        if (!permissionList.isEmpty()){

            //許可權列表不是空

            String[] permissions = permissionList.toArray(new String[permissionList.size()]);

            ActivityCompat.requestPermissions(ItemA_Nav_Activity.this,permissions,1);

        }

    }

}