关于开发百度地图的定位以及导航的代码记录

因为年前的工作中用到了百度地图的定位 导航功能，然后又去翻阅了百度sdk相关的api后进行开发，现在对其进行一些整理，方便后面遇到相关开发时使用。

开发之前，先进行准备工作，在百度地图的开发者网站上下载相关的sdk，导入AS中的libs文件中，然后创建jniLibs的文件夹，将其相关的文件复制进去后，引用即可，然后申请百度地图相关的key秘钥，导入相关的权限，根据百度官方的流程进行即可。

首先先在xml文件中引入百度的图view

<RelativeLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.example.l.mapdemo.MainActivity">    <com.baidu.mapapi.map.MapView        android:id="@+id/mv"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:clickable="true" /></RelativeLayout>其进行开发之前 必须先初始化sdk的个组件，如果是多次引用的话，也可以将其抽取成base类进行使用
//在使用SDK各组件之前初始化context信息，传入applicationContext        //注意该方法要再setContentView方法之前实现        SDKInitializer.initialize(getApplicationContext());        setContentView(R.layout.activity_main);
将百度地图生命周期与activity的进行绑定
 @Override    PRotected void onDestroy() {        super.onDestroy();        mMapView.onDestroy();    }    @Override    protected void onResume() {        super.onResume();        mMapView.onResume();    }    @Override    protected void onPause() {        super.onPause();        mMapView.onPause();    }    @Override    protected void onStart() {        super.onStart();        mBaiduMap.setMyLocationEnabled(true);        if (!mLocationClient.isStarted()) {            mLocationClient.start();        }    }    @Override    protected void onStop() {        super.onStop();        mLocationClient.stop();    }
首先进行定位的开发
定位相关的公共类
//定位相关    private LocationClient mLocationClient = null;    private boolean isFristLocation = true;根据百度sdk提供的官方文档可以看到 其定位相关的类如下
private void initLocation() {        mLocationClient = new LocationClient(getApplicationContext());     //声明LocationClient类        initLocationOps();        //注册监听函数        mLocationClient.registerLocationListener(new BDLocationListener() {            @Override            public void onReceiveLocation(BDLocation location) {                //mapview 销毁后不再处理新的接收位置                if (location == null || mMapView == null)                    return;                //构造定位数据                MyLocationData locData = new MyLocationData.Builder()                        .accuracy(location.getRadius())                        //此处设置开发者获取到的方向信息                        .latitude(location.getLatitude())                        .longitude(location.getLongitude()).build();                //设置定位数据                mBaiduMap.setMyLocationData(locData);                //第一次定位时，将地图位置移动到当前位置                LatLng ll = new LatLng(location.getLatitude(), location.getLongitude());                mLastLocationData = ll;                if (isFristLocation) {                    isFristLocation = false;                    MapStatusUpdate u = MapStatusUpdateFactory.newLatLng(ll);                    mBaiduMap.animateMapStatus(u);                }            }        });    }
private void initLocationOps() {        LocationClientOption option = new LocationClientOption();        option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy        );//可选，默认高精度，设置定位模式，高精度，低功耗，仅设备        option.setCoorType("bd09ll");//可选，默认gcj02，设置返回的定位结果坐标系        int span = 1000;        option.setScanSpan(span);//可选，默认0，即仅定位一次，设置发起定位请求的间隔需要大于等于1000ms才是有效的        option.setIsNeedAddress(true);//可选，设置是否需要地址信息，默认不需要        option.setOpenGps(true);//可选，默认false,设置是否使用gps        option.setLocationNotify(true);//可选，默认false，设置是否当GPS有效时按照1S/1次频率输出GPS结果        option.setIsNeedLocationDescribe(true);//可选，默认false，设置是否需要位置语义化结果，可以在BDLocation.getLocationDescribe里得到，结果类似于“在北京天安门附近”        option.setIsNeedLocationPoiList(true);//可选，默认false，设置是否需要POI结果，可以在BDLocation.getPoiList里得到        option.setIgnoreKillProcess(false);//可选，默认true，定位SDK内部是一个SERVICE，并放到了独立进程，设置是否在stop的时候杀死这个进程，默认不杀死        option.SetIgnoreCacheException(false);//可选，默认false，设置是否收集CRASH信息，默认收集        option.setEnableSimulateGps(false);//可选，默认false，设置是否需要过滤GPS仿真结果，默认需要        mLocationClient.setLocOption(option);    }定位相关基本完成。
导航相关代码:在百度提供的官方demo中找到BNDemoGuideActivity类，这是导航相关的类，将其复制进自己的工程，改掉一些报红的类即可
然后在自己的MainnActivity中百度提供的Demo中的
 private MapView mMapView;    private BaiduMap mBaiduMap;    private Button mBtmine;    private String mSDCardPath = null;    private static final String APP_FOLDER_NAME = "BNSDKSimpleDemo";    private final static String authBaseArr[] =            {Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.access_FINE_LOCATION};    private final static String authComArr[] = {Manifest.permission.READ_PHONE_STATE};    private final static int authBaseRequestCode = 1;    private final static int authComRequestCode = 2;    private boolean hasInitSuccess = false;    private boolean hasRequestComAuth = false;    public static final String ROUTE_PLAN_NODE = "routePlanNode";    public static List<Activity> activityList = new LinkedList<Activity>();    public static final String RESET_END_NODE = "resetEndNode";
 //更新地图的设置        mBaiduMap = mMapView.getMap();        MapStatusUpdate msu = MapStatusUpdateFactory.zoomTo(18.0f);        mBaiduMap.setMapStatus(msu);if (initDirs()) {            initNavi();        }
private boolean initDirs() {        mSDCardPath = getSdcardDir();        if (mSDCardPath == null) {            return false;        }        File f = new File(mSDCardPath, APP_FOLDER_NAME);        if (!f.exists()) {            try {                f.mkdir();            } catch (Exception e) {                e.printStackTrace();                return false;            }        }        return true;    }    String authinfo = null;    /**     * 内部TTS播报状态回传handler     */    private Handler ttsHandler = new Handler() {        public void handleMessage(Message msg) {            int type = msg.what;            switch (type) {                case BaiduNaviManager.TTSPlayMsgType.PLAY_START_MSG: {                    // showToastMsg("Handler : TTS play start");                    break;                }                case BaiduNaviManager.TTSPlayMsgType.PLAY_END_MSG: {                    // showToastMsg("Handler : TTS play end");                    break;                }                default:                    break;            }        }    };    /**     * 内部TTS播报状态回调接口     */    private BaiduNaviManager.TTSPlayStateListener ttsPlayStateListener = new BaiduNaviManager.TTSPlayStateListener() {        @Override        public void playEnd() {            // showToastMsg("TTSPlayStateListener : TTS play end");        }        @Override        public void playStart() {            // showToastMsg("TTSPlayStateListener : TTS play start");        }    };    public void showToastMsg(final String msg) {        MainActivity.this.runOnUiThread(new Runnable() {            @Override            public void run() {                Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();            }        });    }    private boolean hasBasePhoneAuth() {        // TODO Auto-generated method stub        PackageManager pm = this.getPackageManager();        for (String auth : authBaseArr) {            if (pm.checkPermission(auth, this.getPackageName()) != PackageManager.PERMISSION_GRANTED) {                return false;            }        }        return true;    }    private boolean hasCompletePhoneAuth() {        // TODO Auto-generated method stub        PackageManager pm = this.getPackageManager();        for (String auth : authComArr) {            if (pm.checkPermission(auth, this.getPackageName()) != PackageManager.PERMISSION_GRANTED) {                return false;            }        }        return true;    }    private void initNavi() {        BNOuterTTSPlayerCallback ttsCallback = null;        // 申请权限        if (android.os.Build.VERSION.SDK_INT >= 23) {            if (!hasBasePhoneAuth()) {                this.requestPermissions(authBaseArr, authBaseRequestCode);                return;            }        }        BaiduNaviManager.getInstance().init(this, mSDCardPath, APP_FOLDER_NAME, new BaiduNaviManager.NaviInitListener() {            @Override            public void onAuthResult(int status, String msg) {                if (0 == status) {                    authinfo = "key校验成功!";                } else {                    authinfo = "key校验失败, " + msg;                }                MainActivity.this.runOnUiThread(new Runnable() {                    @Override                    public void run() {                        Toast.makeText(MainActivity.this, authinfo, Toast.LENGTH_LONG).show();                    }                });            }            public void initSuccess() {                Toast.makeText(MainActivity.this, "百度导航引擎初始化成功", Toast.LENGTH_SHORT).show();                hasInitSuccess = true;                initSetting();            }            public void initStart() {                Toast.makeText(MainActivity.this, "百度导航引擎初始化开始", Toast.LENGTH_SHORT).show();            }            public void initFailed() {                Toast.makeText(MainActivity.this, "百度导航引擎初始化失败", Toast.LENGTH_SHORT).show();            }        }, null, ttsHandler, ttsPlayStateListener);    }    private void initSetting() {        // BNaviSettingManager.setDayNightMode(BNaviSettingManager.DayNightMode.DAY_NIGHT_MODE_DAY);        BNaviSettingManager                .setShowTotalRoadConditionBar(BNaviSettingManager.PreViewRoadCondition.ROAD_CONDITION_BAR_SHOW_ON);        BNaviSettingManager.setVoiceMode(BNaviSettingManager.VoiceMode.Veteran);        // BNaviSettingManager.setPowerSaveMode(BNaviSettingManager.PowerSaveMode.DISABLE_MODE);        BNaviSettingManager.setRealRoadCondition(BNaviSettingManager.RealRoadCondition.NAVI_ITS_ON);    }    private String getSdcardDir() {        if (Environment.getExternalStorageState().equalsIgnoreCase(Environment.MEDIA_MOUNTED)) {            return Environment.getExternalStorageDirectory().toString();        }        return null;    }    private void addDestInfoOverlay(LatLng latLng) {        mBaiduMap.clear();        OverlayOptions options = new MarkerOptions().position(latLng)                .icon(BitmapDescriptorFactory.fromResource(R.drawable.icon_geo))                .zIndex(5);        mBaiduMap.addOverlay(options);    }设置目的地以及导航相关的方法
 @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (resultCode == 66) {            String result = data.getExtras().getString("result");//得到新Activity 关闭后返回的数据            jd = Double.parseDouble(result);            String result2 = data.getExtras().getString("result2");            wd = Double.parseDouble(result2);            LatLng latLng = new LatLng(wd, jd);            mDestLocationData = latLng;            addDestInfoOverlay(latLng);            Toast.makeText(MainActivity.this, "设置目的地成功", Toast.LENGTH_SHORT).show();        } else if (resultCode == 33) {            String result3 = data.getExtras().getString("result");            Toast.makeText(this, "点击取消", Toast.LENGTH_SHORT).show();        }    }    private void routeplanToNavi(boolean mock) {        BNRoutePlanNode.CoordinateType coType = BNRoutePlanNode.CoordinateType.GCJ02;        if (!hasInitSuccess) {            Toast.makeText(MainActivity.this, "还未初始化!", Toast.LENGTH_SHORT).show();        }        // 权限申请        if (android.os.Build.VERSION.SDK_INT >= 23) {            // 保证导航功能完备            if (!hasCompletePhoneAuth()) {                if (!hasRequestComAuth) {                    hasRequestComAuth = true;                    this.requestPermissions(authComArr, authComRequestCode);                    return;                } else {                    Toast.makeText(MainActivity.this, "没有完备的权限!", Toast.LENGTH_SHORT).show();                }            }        }        BNRoutePlanNode sNode = null;        BNRoutePlanNode eNode = null;        coType = BNRoutePlanNode.CoordinateType.BD09LL;        //mLastLocationData        //mDestLocationData//                sNode = new BNRoutePlanNode(116.30142, 40.05087, "百度大厦", null, coType);//                eNode = new BNRoutePlanNode(116.39750, 39.90882, "北京天安门", null, coType);        sNode = new BNRoutePlanNode(mLastLocationData.longitude, mLastLocationData.latitude, "我的位置", null, coType);        eNode = new BNRoutePlanNode(jd, wd, "目标地点", null, coType);//        Toast.makeText(this, "目标地点确定", Toast.LENGTH_SHORT).show();        eNode = new BNRoutePlanNode(mDestLocationData.longitude, mDestLocationData.latitude, "目的地位置", null, coType);        if (sNode != null && eNode != null) {            List<BNRoutePlanNode> list = new ArrayList<BNRoutePlanNode>();            list.add(sNode);            list.add(eNode);            BaiduNaviManager.getInstance().launchNavigator(this, list, 1, mock, new DemoRoutePlanListener(sNode));        }    }        public class DemoRoutePlanListener implements BaiduNaviManager.RoutePlanListener {            private BNRoutePlanNode mBNRoutePlanNode = null;            public DemoRoutePlanListener(BNRoutePlanNode node) {                mBNRoutePlanNode = node;            }            @Override            public void onJumpToNavigator() {                /*                 * 设置途径点以及resetEndNode会回调该接口                 */                for (Activity ac : activityList) {                    if (ac.getClass().getName().endsWith("BNDemoGuideActivity")) {                        return;                    }                }                Intent intent = new Intent(MainActivity.this, BNDemoGuideActivity.class);                Bundle bundle = new Bundle();                bundle.putSerializable(ROUTE_PLAN_NODE, (BNRoutePlanNode) mBNRoutePlanNode);                intent.putExtras(bundle);                startActivity(intent);            }        @Override        public void onRoutePlanFailed() {            // TODO Auto-generated method stub            Toast.makeText(MainActivity.this, "算路失败", Toast.LENGTH_SHORT).show();        }    }