Flutter集成高德导航SDK（Android篇）（JAVA语法）

先上flutter doctor：
flutter sdk版本为：3.19.4
在这里插入图片描述

引入依赖：
在app的build.gradle下，添加如下依赖：

    implementation 'com.amap.api:navi-3dmap:10.0.700_3dmap10.0.700'

navi-3dmap里面包含了定位功能，地图功能，所以引入这一个包就行

1.在项目的android-app-src-包名路径下，新建一个class，起名为：AMapNaviPlugin,
AMapNaviPlugin代码如下：



import android.app.Activity;
import android.content.Context;
import android.os.Handler;
import android.util.Log;
import android.view.View;

import androidx.annotation.NonNull;

import com.amap.api.maps.model.LatLng;
import com.amap.api.maps.model.Poi;
import com.amap.api.navi.AMapNavi;
import com.amap.api.navi.AmapNaviPage;
import com.amap.api.navi.AmapNaviParams;
import com.amap.api.navi.AmapNaviType;
import com.amap.api.navi.AmapPageType;
import com.amap.api.navi.INaviInfoCallback;
import com.amap.api.navi.NaviSetting;
import com.amap.api.navi.model.AMapNaviLocation;

import java.util.HashMap;
import java.util.Map;



import io.flutter.embedding.engine.plugins.FlutterPlugin;
import io.flutter.embedding.engine.plugins.activity.ActivityAware;
import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
import io.flutter.plugin.common.BinaryMessenger;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;

public class AMapNaviPlugin implements FlutterPlugin, MethodChannel.MethodCallHandler, ActivityAware {
    private static MethodChannel channel;

    private static Context mContext = null;
    //通讯名称,回到手机桌面
    private static String CHANNEL = "com.kdcf.channel/aMapNavi";

    private Activity activity;

    @Override
    public void onAttachedToEngine(@NonNull FlutterPluginBinding binding) {
        if (null == mContext) {
            mContext = binding.getApplicationContext();
        }
        initMethodChannel(binding.getBinaryMessenger());
    }

    private void initMethodChannel(BinaryMessenger binaryMessenger) {
        if (null == binaryMessenger) {
            return;
        }

        channel = new MethodChannel(binaryMessenger, CHANNEL);
        channel.setMethodCallHandler(this);
    }

    @Override
    public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
        channel.setMethodCallHandler(null);
        channel = null;
    }

    @Override
    public void onMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result) {
        if (mContext == null) {
            result.error("-1", "context is null", null);
        }

        if (call.method.equals(NaviConstant.START_NAVI)) {
            try {
                Object arguments = call.arguments;
                Map<String,Object> map= (Map<String, Object>) arguments;
                Double endLongitude= (Double) map.get("endLongitude");
                Double endLatitude= (Double) map.get("endLatitude");
                String endPlaceName= (String) map.get("endPlaceName");
                String endPoiId= (String) map.get("endPoiId");

                Map<String,Object> extraParams= (Map<String, Object>) map.get("extraParams");

                Log.e("AMapNaviPlugin","endLongitude:"+endLongitude);
                Log.e("AMapNaviPlugin","endLatitude:"+endLatitude);
                Log.e("AMapNaviPlugin","endPlaceName:"+endPlaceName);
                Log.e("AMapNaviPlugin","endPoiId:"+endPoiId);
                Log.e("AMapNaviPlugin","extraParams参数如下：");
                for (Map.Entry<String, Object> entry : extraParams.entrySet()) {
                    System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
                }


                startNavi(endLongitude,endLatitude,endPlaceName,endPoiId,extraParams);
            } catch (Exception e) {
                Log.e("AMapNaviPlugin","异常："+e.toString());
                result.error("ERROR","AMapNaviPlugin onMethodCall startNavi出错:"+e.toString(),null);
            }
            result.success(200);
        }else if (call.method.equals(NaviConstant.AGREE_PRIVACY)) {
            try {
                NaviSetting.updatePrivacyShow(mContext, true, true);
                NaviSetting.updatePrivacyAgree(mContext, true);
            } catch (Exception e) {
                Log.e("AMapNaviPlugin",e.toString());
                result.error("ERROR","AMapNaviPlugin onMethodCall agreePrivacy出错:"+e.toString(),null);
            }
            result.success(200);
        }else if (call.method.equals(NaviConstant.CANCEL_NAVI)) {
            try {
                AMapNavi.getInstance(mContext).playTTS("导航已结束",true);
                //退出导航组件
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        // 这里是延时后需要执行的代码
                        //退出导航组件
                        AmapNaviPage.getInstance().exitRouteActivity();
                    }
                }, 5000);
            } catch (Exception e) {
                Log.e("AMapNaviPlugin",e.toString());
                result.error("ERROR","AMapNaviPlugin onMethodCall CANCEL_NAVI出错:"+e.toString(),null);
            }
            result.success(200);
        }
    }

    @Override
    public void onAttachedToActivity(@NonNull ActivityPluginBinding binding) {
        activity = binding.getActivity();
    }

    @Override
    public void onDetachedFromActivityForConfigChanges() {

    }

    @Override
    public void onReattachedToActivityForConfigChanges(@NonNull ActivityPluginBinding binding) {

    }

    @Override
    public void onDetachedFromActivity() {

    }

    void startNavi(Double endLongitude,Double endLatitude,String endPlaceName,String endPoiId,Map<String,Object> extraParams){
        //起点
//        Poi start = new Poi("北京首都机场", new LatLng(40.080525,116.603039), "B000A28DAE");
//途经点
//        List<Poi> poiList = new ArrayList();
//        poiList.add(new Poi("故宫", new LatLng(39.918058,116.397026), "B000A8UIN8"));
//终点
        Poi end = new Poi(endPlaceName, new LatLng(endLatitude,endLongitude),endPoiId);
// 组件参数配置
        AmapNaviParams params = new AmapNaviParams(null, null, end, AmapNaviType.DRIVER, AmapPageType.NAVI);
// 启动组件
        AmapNaviPage.getInstance().showRouteActivity(mContext.getApplicationContext(), params, new NaviInfoCallback(mContext,channel,extraParams));
    }
}

新建NaviConstant类，代码如下：

public class NaviConstant {
    //开始导航，flutter向原生传值
    public static String START_NAVI="startNavi";
    //同意隐私政策，flutter向原生传值
    public static String AGREE_PRIVACY="agreePrivacy";

    //到达目的地，原生向flutter传值
    public static String ARRIVE_Destination="arriveDestination";
    //取消导航
    public static String CANCEL_NAVI="cancelNavi";
}

新建NaviInfoCallback类，代码如下：

package com.daohe.kdchufadriver.navi;

import android.content.Context;
import android.os.Handler;
import android.util.Log;
import android.view.View;

import com.amap.api.navi.INaviInfoCallback;
import com.amap.api.navi.model.AMapNaviLocation;
import com.amap.api.navi.AmapNaviPage;

import java.util.HashMap;
import java.util.Map;

import io.flutter.plugin.common.MethodChannel;

public class NaviInfoCallback implements INaviInfoCallback {
    Context context;
    MethodChannel channel;
    Map<String,Object> extraParams;

    public NaviInfoCallback(Context context,MethodChannel channel,Map<String,Object> extraParams) {
        this.context=context;
        this.channel=channel;
        this.extraParams=extraParams;
    }

    @Override
    public void onInitNaviFailure() {
        Log.e("NaviInfoCallback","onInitNaviFailure");
    }

    @Override
    public void onGetNavigationText(String s) {
        Log.e("onGetNavigationText","onGetNavigationText:"+s);

        // //模拟到达终点
//        Map<String,Object> result=new HashMap<>();
//        result.put("result",extraParams);
//        channel.invokeMethod(NaviConstant.ARRIVE_Destination,result);
//        //退出导航组件
//        Handler handler = new Handler();
//        handler.postDelayed(new Runnable() {
//            @Override
//            public void run() {
//                // 这里是延时后需要执行的代码
//                //退出导航组件
//                AmapNaviPage.getInstance().exitRouteActivity();
//            }
//        }, 5000);
    }

    @Override
    public void onLocationChange(AMapNaviLocation aMapNaviLocation) {
        Log.e("onGetNavigationText","onLocationChange");
    }

    //isEmulaterNavi - true代表是模拟导航到达目的地，false代表实时导航到达目的地
    @Override
    public void onArriveDestination(boolean isEmulaterNavi) {
        Map<String,Object> result=new HashMap<>();
        result.put("result",extraParams);

        channel.invokeMethod(NaviConstant.ARRIVE_Destination,result);
        //退出导航组件
        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                // 这里是延时后需要执行的代码
                //退出导航组件
                AmapNaviPage.getInstance().exitRouteActivity();
            }
        }, 5000);
    }

    @Override
    public void onStartNavi(int i) {
        Log.e("onGetNavigationText","onStartNavi "+String.valueOf(i));
    }

    @Override
    public void onCalculateRouteSuccess(int[] ints) {
        Log.e("onGetNavigationText","onCalculateRouteSuccess "+String.valueOf(ints));

    }

    @Override
    public void onCalculateRouteFailure(int i) {
        Log.e("onGetNavigationText","onCalculateRouteFailure "+String.valueOf(i));
    }

    @Override
    public void onStopSpeaking() {
        Log.e("onGetNavigationText","onStopSpeaking");
    }

    @Override
    public void onReCalculateRoute(int i) {
        Log.e("onGetNavigationText","onReCalculateRoute "+String.valueOf(i));

    }

    @Override
    public void onExitPage(int i) {
        Log.e("onGetNavigationText","onExitPage "+String.valueOf(i));
    }

    @Override
    public void onStrategyChanged(int i) {
        Log.e("onGetNavigationText","onStrategyChanged "+String.valueOf(i));

    }

    @Override
    public void onArrivedWayPoint(int i) {
        Log.e("onGetNavigationText","onArrivedWayPoint "+String.valueOf(i));

    }

    @Override
    public void onMapTypeChanged(int i) {
        Log.e("onGetNavigationText","onMapTypeChanged "+String.valueOf(i));

    }

    @Override
    public void onNaviDirectionChanged(int i) {
        Log.e("onGetNavigationText","onNaviDirectionChanged "+String.valueOf(i));

    }

    @Override
    public void onDayAndNightModeChanged(int i) {
        Log.e("onGetNavigationText","onDayAndNightModeChanged "+String.valueOf(i));

    }

    @Override
    public void onBroadcastModeChanged(int i) {
        Log.e("onGetNavigationText","onBroadcastModeChanged "+String.valueOf(i));

    }

    @Override
    public void onScaleAutoChanged(boolean b) {
        Log.e("onGetNavigationText","onScaleAutoChanged "+b);

    }

    @Override
    public View getCustomMiddleView() {
        return null;
    }

    @Override
    public View getCustomNaviView() {
        return null;
    }

    @Override
    public View getCustomNaviBottomView() {
        return null;
    }
}

android端的代码到这里就完了

下面是Flutter端的代码

在Flutter新建dart文件，起名amap_navi_plugin.dart
代码如下：

import 'dart:convert';

import 'package:flutter/services.dart';
import 'package:flutter/material.dart';

//司机到达目的地附近的回调
typedef OnArriveCallBack=void Function(dynamic params);
//高德导航插件
class AMapNaviPlugin {
  //开始导航
  static const START_NAVI="startNavi";
  //同意隐私政策
  static const AGREE_PRIVACY="agreePrivacy";
  //到达目的地给flutter回调
  static const ARRIVE_Destination="arriveDestination";
  //取消导航
  static const CANCEL_NAVI="cancelNavi";


  //初始化通信管道
  static const String CHANNEL = "com.kdcf.channel/aMapNavi";
  static const platform = MethodChannel(CHANNEL);

  //开始导航
  //参数目的地经度、纬度、地点名称
  static Future<void> startAmapNavi(double endLongitude,double endLatitude,String endPlaceName,String poiId,Map extraParams) async {
    //通知安卓返回,到手机桌面
    try {
      Map map=Map();
      map['endLongitude']=endLongitude;
      map['endLatitude']=endLatitude;
      map['endPlaceName']=endPlaceName;
      map['extraParams']=extraParams;
      map['endPoiId']=poiId;
      // map['endLongitude']=103.85741;
      // map['endLatitude']=36.05407;
      // map['endPoiId']='';
      final dynamic result = await platform.invokeMethod(START_NAVI,map);
      if (result==200) {
        debugPrint("导航成功");
      }
    } on PlatformException catch (e) {
      debugPrint("通信失败 AMapNaviPlugin startAmapNavi:失败 ${e.toString()}");
      print(e.toString());
    }catch(e){
      debugPrint("导航失败：${e.toString()}");
    }
  }

  static void agreePrivacy() async {

    //通知安卓返回,到手机桌面
    try {
      final int result=await platform.invokeMethod(AGREE_PRIVACY);
      if (result==200) {
        debugPrint("同意导航隐私政策成功");
      }
    } on PlatformException catch (e) {
      debugPrint("通信失败 AMapNaviPlugin agreePrivacy:失败 ${e.toString()}");
      print(e.toString());
    }catch(e){
      debugPrint("同意导航隐私政策失败：${e.toString()}");
    }
  }

  //原生往flutter发消息，导航快到目的地的时候
  static void arriveDestination(OnArriveCallBack onArriveCallBack) async {
    //通知安卓返回,到手机桌面
    try {
       Future<dynamic> handler(MethodCall call) async {
        debugPrint("flutter收到消息:arriveDestination");
        switch (call.method) {
          case ARRIVE_Destination:
            Map result=call.arguments;
            debugPrint("ARRIVE_Destination参数:"+jsonEncode(result));
            onArriveCallBack(result);
            break;
        }
      }

      platform.setMethodCallHandler((call) => handler(call));
    } on PlatformException catch (e) {
      debugPrint("通信失败 AMapNaviPlugin arriveDestination:失败 ${e.toString()}");
      print(e.toString());
    }catch(e){
      debugPrint("arriveDestination失败：${e.toString()}");
    }
  }

  //flutter往原生发消息，取消订单的时候 取消导航
  static void cancelNavi() async {

    //通知安卓返回,到手机桌面
    try {
      final int result=await platform.invokeMethod(CANCEL_NAVI);
      if (result==200) {
        debugPrint("取消导航成功");
      }
    } on PlatformException catch (e) {
      debugPrint("通信失败 AMapNaviPlugin cancelNavi:失败 ${e.toString()}");
      print(e.toString());
    }catch(e){
      debugPrint("取消导航失败：${e.toString()}");
    }
  }


}

最后，使用方法

AMapNaviPlugin.startAmapNavi(longitude,latitude,destinationTitle,poiId,extraParams);

longitude为终点经度，latitude为终点纬度，destinationTitle为目的地的汉字名称，比如北京XXXX。poiId可以不传，extraParams可以不传。

以后还会完成的相关文章如下:

目前本人已完成项目里面以下技术的实现，但是还没时间写博客，工作太忙了，以后会完善。。。待续。。。

1. Flutter集成高德导航SDK（IOS篇）（OC语法）
2. Flutter集成高德导航SDK并且自定义导航UI页面（Android篇）（JAVA语法）
3. Flutter集成高德导航SDK并且自定义导航UI页面（IOS篇）（OC语法）