安卓百度地图开发（四）在定位图层显示他人位置

在这篇博客中主要做了两个工作

① 添加显示他人位置的marker

② 将他人头像作为图片合并到marker中进行显示

主要代码：

① 添加他人位置

这段代码可以添加到构造函数中，或者从服务器获取到他人位置后的代码中去

//添加他人位置



        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.touxiang);



        addOthersLocation(double（对方的经度）,double（对方的纬度）,bmp（对方的头像bitmap）);

主要函数：

public void addOthersLocation(double latitute,double longtitute, Bitmap touxiang) {



 



        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.icon_geo);//红点




 



//        //构建Marker图标



//        othersCurrentMarker = BitmapDescriptorFactory



//                .fromResource(R.drawable.icon_geo);



 



        //构建Marker图标




        othersCurrentMarker = BitmapDescriptorFactory



                .fromBitmap(mergeBitmap(bmp,touxiang));//public static BitmapDescriptor fromBitmap(Bitmap image)  + mergeBitmap()




 



        //定义Maker坐标点




        LatLng point = new LatLng(latitute, longtitute);



        //构建MarkerOption，用于在地图上添加Marker




        OverlayOptions option = new MarkerOptions()



                .position(point)



                .icon(othersCurrentMarker);



        //在地图上添加Marker，并显示




        mBaiduMap.addOverlay(option);



    }

② 合并标志点图片和用户头像图像

//将两张图片合并为一张图片 用作头像



    private Bitmap mergeBitmap(Bitmap firstBitmap, Bitmap secondBitmap) {



        int Width = firstBitmap.getWidth();



        int height = firstBitmap.getHeight();



        secondBitmap = zoomImage(secondBitmap,Width,height);



        Bitmap bitmap = Bitmap.createBitmap(Width, height*2,



                firstBitmap.getConfig());



        Canvas canvas = new Canvas(bitmap);



        canvas.drawBitmap(secondBitmap, new Matrix(), );



        canvas.drawBitmap(firstBitmap, 0, height, );



        return bitmap;



    }



 



    //缩放头像图片




    public  Bitmap zoomImage(Bitmap bgimage, double newWidth,




                             double newHeight) {



        // 获取这个图片的宽和高




        float width = bgimage.getWidth();



        float height = bgimage.getHeight();



        // 创建操作图片用的matrix对象




        Matrix matrix = new Matrix();



        // 计算宽高缩放率




        float scaleWidth = ((float) newWidth) / width;



        float scaleHeight = ((float) newHeight) / height;



        // 缩放图片动作




        matrix.postScale(scaleWidth, scaleHeight);



        Bitmap bitmap = Bitmap.createBitmap(bgimage, 0, 0, (int) width,



                (int) height, matrix, true);



        return bitmap;



    }

完整代码：

import android.Manifest;




import android.app.Activity;




import android.content.Context;




import android.content.pm.PackageManager;




import android.content.res.Resources;




import android.graphics.Bitmap;




import android.graphics.BitmapFactory;




import android.graphics.Canvas;




import android.graphics.Matrix;




import android.graphics.drawable.BitmapDrawable;




import android.graphics.drawable.Drawable;




import android.hardware.Sensor;




import android.hardware.SensorEvent;




import android.hardware.SensorEventListener;




import android.hardware.SensorManager;




import android.os.Build;




import android.os.Bundle;




import android.support.v4.app.ActivityCompat;




import android.support.v4.content.ContextCompat;




import android.util.Log;




import android.view.View;




import android.view.View.OnClickListener;




import android.widget.Button;




import android.widget.CompoundButton;




import android.widget.ImageView;




import android.widget.RadioGroup.OnCheckedChangeListener;




import android.widget.Toast;




import android.widget.ToggleButton;




import android.widget.ZoomControls;



 




import com.baidu.location.BDLocation;




import com.baidu.location.BDLocationListener;




import com.baidu.location.LocationClient;




import com.baidu.location.LocationClientOption;




import com.baidu.mapapi.SDKInitializer;




import com.baidu.mapapi.map.BaiduMap;




import com.baidu.mapapi.map.BitmapDescriptor;




import com.baidu.mapapi.map.BitmapDescriptorFactory;




import com.baidu.mapapi.map.MapStatusUpdate;




import com.baidu.mapapi.map.MapStatusUpdateFactory;




import com.baidu.mapapi.map.MapView;




import com.baidu.mapapi.map.MarkerOptions;




import com.baidu.mapapi.map.MyLocationConfiguration;




import com.baidu.mapapi.map.MyLocationConfiguration.LocationMode;




import com.baidu.mapapi.map.MyLocationData;




import com.baidu.mapapi.map.OverlayOptions;




import com.baidu.mapapi.model.LatLng;



 



/**



 * 此demo用来展示如何结合定位SDK实现定位，并使用MyLocationOverlay绘制定位位置 同时展示如何使用自定义图标绘制并点击时弹出泡泡 



 *



 */




public class LocationDemo extends Activity {



 



    // 定位相关  




    LocationClient mLocClient;



    public MyLocationListenner myListener = new MyLocationListenner();



    private LocationMode mCurrentMode;



    BitmapDescriptor mCurrentMarker,othersCurrentMarker;



 



    MapView mMapView;



    BaiduMap mBaiduMap;



 



    private SensorManager mSensorManager;



    double degree = 0;



    // UI相关  




    OnCheckedChangeListener radioButtonListener;



    Button requestLocButton;



    ToggleButton togglebtn = ;



    boolean isFirstLoc = true;// 是否首次定位  




 



    @Override




    public void onCreate(Bundle savedInstanceState) {



        super.onCreate(savedInstanceState);



        SDKInitializer.initialize(getApplicationContext());



        setContentView(R.layout.activity_location);



        judgePermission();



        requestLocButton = (Button) findViewById(R.id.button1);



        mCurrentMode = LocationMode.NORMAL;



        requestLocButton.setText("普通");



        OnClickListener btnClickListener = new OnClickListener() {



            public void onClick(View v) {



                switch (mCurrentMode) {



                    case NORMAL:



                        requestLocButton.setText("跟随");



                        mCurrentMode = LocationMode.FOLLOWING;



                        mBaiduMap



                                .setMyLocationConfigeration(new MyLocationConfiguration(



                                        mCurrentMode, true, mCurrentMarker));



                        break;



                    case COMPASS:



                        requestLocButton.setText("普通");



                        mCurrentMode = LocationMode.NORMAL;



                        mBaiduMap



                                .setMyLocationConfigeration(new MyLocationConfiguration(



                                        mCurrentMode, true, mCurrentMarker));



                        break;



                    case FOLLOWING:



                        requestLocButton.setText("罗盘");



                        mCurrentMode = LocationMode.COMPASS;



                        mBaiduMap



                                .setMyLocationConfigeration(new MyLocationConfiguration(



                                        mCurrentMode, true, mCurrentMarker));



                        break;



                }



            }



        };



        requestLocButton.setOnClickListener(btnClickListener);



 



        togglebtn = (ToggleButton) findViewById(R.id.togglebutton);



        togglebtn



                .setOnCheckedChangeListener(new android.widget.CompoundButton.OnCheckedChangeListener() {



 



                    @Override




                    public void onCheckedChanged(CompoundButton buttonView,




                                                 boolean isChecked) {



                        if (isChecked) {



                            // 普通地图  




                            mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);



                        } else {



                            // 卫星地图  




                            mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);



                        }



 



                    }



                });



 



        // 地图初始化  




        mMapView = (MapView) findViewById(R.id.bmapView);



        mBaiduMap = mMapView.getMap();



        // 开启定位图层  




        mBaiduMap.setMyLocationEnabled(true);



        // 定位初始化  




        mLocClient = new LocationClient(this);



        mLocClient.registerLocationListener(myListener);



        LocationClientOption option = new LocationClientOption();



        option.setOpenGps(true);// 打开gps  




        option.setCoorType("bd09ll"); // 设置坐标类型  




        option.setScanSpan(1000);// 设置发起定位请求的间隔时间为1000ms  




        option.setIsNeedAddress(true);



        mLocClient.setLocOption(option);



        mLocClient.start();



        // 隐藏logo




        View child = mMapView.getChildAt(1);



        if (child !=  && (child instanceof ImageView || child instanceof ZoomControls)){



            child.setVisibility(View.INVISIBLE);



        }



 



        //指南针




        mSensorManager= (SensorManager) getSystemService(Context.SENSOR_SERVICE);



        Sensor magenticSensor=mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);



        Sensor accelerometerSensor=mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);



        mSensorManager.registerListener(listener,magenticSensor,SensorManager.SENSOR_DELAY_GAME);



        mSensorManager.registerListener(listener,accelerometerSensor,SensorManager.SENSOR_DELAY_GAME);



 



        //添加他人位置




        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.touxiang);



        addOthersLocation(经度（double),纬度（double),头像bmp);



    }



 



    //指南针 获取degree值




    private SensorEventListener listener=new SensorEventListener() {



        float[] accelerometerValues=new float[3];



        float[] magenticValues=new float[3];



        @Override




        public void onSensorChanged(SensorEvent sensorEvent) {



            //判断当前是加速度传感器还是地磁传感器




            if(sensorEvent.sensor.getType()==Sensor.TYPE_ACCELEROMETER){



                accelerometerValues=sensorEvent.values.clone();



            }else if(sensorEvent.sensor.getType()== Sensor.TYPE_MAGNETIC_FIELD){



                magenticValues=sensorEvent.values.clone();



            }



            float[] R=new float[9];



            float[] values=new float[3];



            SensorManager.getRotationMatrix(R, , accelerometerValues, magenticValues);



            SensorManager.getOrientation(R,values);



            Log.d("MainActivity","value[0] is"+Math.toDegrees(values[0]));



            degree = Math.toDegrees(values[0]);



 



        }



        @Override




        public void onAccuracyChanged(Sensor sensor, int i) {



        }



    };



 



    public void addOthersLocation(double latitute,double longtitute, Bitmap touxiang) {



 



        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.icon_geo);//标识红点




 



//        //构建Marker图标



//        othersCurrentMarker = BitmapDescriptorFactory



//                .fromResource(R.drawable.icon_geo);



 



        //构建Marker图标




        othersCurrentMarker = BitmapDescriptorFactory



                .fromBitmap(mergeBitmap(bmp,touxiang));//public static BitmapDescriptor fromBitmap(Bitmap image)  + mergeBitmap()




 



        //定义Maker坐标点




        LatLng point = new LatLng(latitute, longtitute);



        //构建MarkerOption，用于在地图上添加Marker




        OverlayOptions option = new MarkerOptions()



                .position(point)



                .icon(othersCurrentMarker);



        //在地图上添加Marker，并显示




        mBaiduMap.addOverlay(option);



    }



 



    //将两张图片合并为一张图片 用作头像




    private Bitmap mergeBitmap(Bitmap firstBitmap, Bitmap secondBitmap) {



        int Width = firstBitmap.getWidth();



        int height = firstBitmap.getHeight();



        secondBitmap = zoomImage(secondBitmap,Width,height);



        Bitmap bitmap = Bitmap.createBitmap(Width, height*2,



                firstBitmap.getConfig());



        Canvas canvas = new Canvas(bitmap);



        canvas.drawBitmap(secondBitmap, new Matrix(), );



        canvas.drawBitmap(firstBitmap, 0, height, );



        return bitmap;



    }



 



    //缩放头像图片




    public  Bitmap zoomImage(Bitmap bgimage, double newWidth,




                             double newHeight) {



        // 获取这个图片的宽和高




        float width = bgimage.getWidth();



        float height = bgimage.getHeight();



        // 创建操作图片用的matrix对象




        Matrix matrix = new Matrix();



        // 计算宽高缩放率




        float scaleWidth = ((float) newWidth) / width;



        float scaleHeight = ((float) newHeight) / height;



        // 缩放图片动作




        matrix.postScale(scaleWidth, scaleHeight);



        Bitmap bitmap = Bitmap.createBitmap(bgimage, 0, 0, (int) width,



                (int) height, matrix, true);



        return bitmap;



    }



 



    /**




     * 定位SDK监听函数 



     */



    public class MyLocationListenner implements BDLocationListener {



 



        @Override




        public void onReceiveLocation(BDLocation location) {



            // map view 销毁后不在处理新接收的位置  




            if (location ==  || mMapView == )



                return;



            MyLocationData locData = new MyLocationData.Builder()



                    .accuracy(location.getRadius())



                    // 此处设置开发者获取到的方向信息，顺时针0-360  




                    .direction((float)degree).latitude(location.getLatitude())



                    .longitude(location.getLongitude()).build();



            mBaiduMap.setMyLocationData(locData);



            if (isFirstLoc) {



                isFirstLoc = false;



                //定义Maker坐标点  https://blog.****.net/u012382791/article/details/53856203




                LatLng ll = new LatLng(location.getLatitude(),



                        location.getLongitude());



                // MapStatusUpdate u = MapStatusUpdateFactory.newLatLng(ll);  




                // 设置缩放比例,更新地图状态  




                float f = mBaiduMap.getMaxZoomLevel();// 19.0




                MapStatusUpdate u = MapStatusUpdateFactory.newLatLngZoom(ll,



                        f - 2);



                mBaiduMap.animateMapStatus(u);



                //地图位置显示  




                Toast.makeText(LocationDemo.this, location.getAddrStr(),



                        Toast.LENGTH_SHORT).show();



            }



 



        }



 



        public void onReceivePoi(BDLocation poiLocation) {



        }



    }



 



    @Override




    protected void onPause() {



        mMapView.onPause();



        super.onPause();



    }



 



    @Override




    protected void onResume() {



        mMapView.onResume();



        super.onResume();



    }



 



    @Override




    protected void onDestroy() {



        // 退出时销毁定位  




        mLocClient.stop();



        // 关闭定位图层  




        mBaiduMap.setMyLocationEnabled(false);



        mMapView.onDestroy();



        mMapView = ;



 



        if(mSensorManager!=){



            mSensorManager.unregisterListener(listener);



        }



        super.onDestroy();



    }



 



 



    //6.0之后要动态获取权限，重要！！！




    protected void judgePermission() {



 



        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {



            // 检查该权限是否已经获取




            // 权限是否已经 授权 GRANTED---授权  DINIED---拒绝




 



            // sd卡权限




            String[] SdCardPermission = {Manifest.permission.WRITE_EXTERNAL_STORAGE};



            if (ContextCompat.checkSelfPermission(this, SdCardPermission[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, SdCardPermission, 100);



            }



 



            //手机状态权限




            String[] readPhoneStatePermission = {Manifest.permission.READ_PHONE_STATE};



            if (ContextCompat.checkSelfPermission(this, readPhoneStatePermission[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, readPhoneStatePermission, 200);



            }



 



            //定位权限




            String[] locationPermission = {Manifest.permission.ACCESS_FINE_LOCATION};



            if (ContextCompat.checkSelfPermission(this, locationPermission[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, locationPermission, 300);



            }



 



            String[] ACCESS_COARSE_LOCATION = {Manifest.permission.ACCESS_COARSE_LOCATION};



            if (ContextCompat.checkSelfPermission(this, ACCESS_COARSE_LOCATION[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, ACCESS_COARSE_LOCATION, 400);



            }



 



 



            String[] READ_EXTERNAL_STORAGE = {Manifest.permission.READ_EXTERNAL_STORAGE};



            if (ContextCompat.checkSelfPermission(this, READ_EXTERNAL_STORAGE[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, READ_EXTERNAL_STORAGE, 500);



            }



 



            String[] WRITE_EXTERNAL_STORAGE = {Manifest.permission.WRITE_EXTERNAL_STORAGE};



            if (ContextCompat.checkSelfPermission(this, WRITE_EXTERNAL_STORAGE[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, WRITE_EXTERNAL_STORAGE, 600);



            }



 



        }else{



            //doSdCardResult();




        }



        //LocationClient.reStart();




    }



}  

效果截图：

左上角红点带头像的就是别人的位置显示

在这篇博客中主要做了两个工作

① 添加显示他人位置的marker

② 将他人头像作为图片合并到marker中进行显示

主要代码：

① 添加他人位置

这段代码可以添加到构造函数中，或者从服务器获取到他人位置后的代码中去

//添加他人位置



        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.touxiang);



        addOthersLocation(double（对方的经度）,double（对方的纬度）,bmp（对方的头像bitmap）);

主要函数：

public void addOthersLocation(double latitute,double longtitute, Bitmap touxiang) {



 



        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.icon_geo);//红点




 



//        //构建Marker图标



//        othersCurrentMarker = BitmapDescriptorFactory



//                .fromResource(R.drawable.icon_geo);



 



        //构建Marker图标




        othersCurrentMarker = BitmapDescriptorFactory



                .fromBitmap(mergeBitmap(bmp,touxiang));//public static BitmapDescriptor fromBitmap(Bitmap image)  + mergeBitmap()




 



        //定义Maker坐标点




        LatLng point = new LatLng(latitute, longtitute);



        //构建MarkerOption，用于在地图上添加Marker




        OverlayOptions option = new MarkerOptions()



                .position(point)



                .icon(othersCurrentMarker);



        //在地图上添加Marker，并显示




        mBaiduMap.addOverlay(option);



    }

② 合并标志点图片和用户头像图像

//将两张图片合并为一张图片 用作头像



    private Bitmap mergeBitmap(Bitmap firstBitmap, Bitmap secondBitmap) {



        int Width = firstBitmap.getWidth();



        int height = firstBitmap.getHeight();



        secondBitmap = zoomImage(secondBitmap,Width,height);



        Bitmap bitmap = Bitmap.createBitmap(Width, height*2,



                firstBitmap.getConfig());



        Canvas canvas = new Canvas(bitmap);



        canvas.drawBitmap(secondBitmap, new Matrix(), );



        canvas.drawBitmap(firstBitmap, 0, height, );



        return bitmap;



    }



 



    //缩放头像图片




    public  Bitmap zoomImage(Bitmap bgimage, double newWidth,




                             double newHeight) {



        // 获取这个图片的宽和高




        float width = bgimage.getWidth();



        float height = bgimage.getHeight();



        // 创建操作图片用的matrix对象




        Matrix matrix = new Matrix();



        // 计算宽高缩放率




        float scaleWidth = ((float) newWidth) / width;



        float scaleHeight = ((float) newHeight) / height;



        // 缩放图片动作




        matrix.postScale(scaleWidth, scaleHeight);



        Bitmap bitmap = Bitmap.createBitmap(bgimage, 0, 0, (int) width,



                (int) height, matrix, true);



        return bitmap;



    }

完整代码：

import android.Manifest;




import android.app.Activity;




import android.content.Context;




import android.content.pm.PackageManager;




import android.content.res.Resources;




import android.graphics.Bitmap;




import android.graphics.BitmapFactory;




import android.graphics.Canvas;




import android.graphics.Matrix;




import android.graphics.drawable.BitmapDrawable;




import android.graphics.drawable.Drawable;




import android.hardware.Sensor;




import android.hardware.SensorEvent;




import android.hardware.SensorEventListener;




import android.hardware.SensorManager;




import android.os.Build;




import android.os.Bundle;




import android.support.v4.app.ActivityCompat;




import android.support.v4.content.ContextCompat;




import android.util.Log;




import android.view.View;




import android.view.View.OnClickListener;




import android.widget.Button;




import android.widget.CompoundButton;




import android.widget.ImageView;




import android.widget.RadioGroup.OnCheckedChangeListener;




import android.widget.Toast;




import android.widget.ToggleButton;




import android.widget.ZoomControls;



 




import com.baidu.location.BDLocation;




import com.baidu.location.BDLocationListener;




import com.baidu.location.LocationClient;




import com.baidu.location.LocationClientOption;




import com.baidu.mapapi.SDKInitializer;




import com.baidu.mapapi.map.BaiduMap;




import com.baidu.mapapi.map.BitmapDescriptor;




import com.baidu.mapapi.map.BitmapDescriptorFactory;




import com.baidu.mapapi.map.MapStatusUpdate;




import com.baidu.mapapi.map.MapStatusUpdateFactory;




import com.baidu.mapapi.map.MapView;




import com.baidu.mapapi.map.MarkerOptions;




import com.baidu.mapapi.map.MyLocationConfiguration;




import com.baidu.mapapi.map.MyLocationConfiguration.LocationMode;




import com.baidu.mapapi.map.MyLocationData;




import com.baidu.mapapi.map.OverlayOptions;




import com.baidu.mapapi.model.LatLng;



 



/**



 * 此demo用来展示如何结合定位SDK实现定位，并使用MyLocationOverlay绘制定位位置 同时展示如何使用自定义图标绘制并点击时弹出泡泡 



 *



 */




public class LocationDemo extends Activity {



 



    // 定位相关  




    LocationClient mLocClient;



    public MyLocationListenner myListener = new MyLocationListenner();



    private LocationMode mCurrentMode;



    BitmapDescriptor mCurrentMarker,othersCurrentMarker;



 



    MapView mMapView;



    BaiduMap mBaiduMap;



 



    private SensorManager mSensorManager;



    double degree = 0;



    // UI相关  




    OnCheckedChangeListener radioButtonListener;



    Button requestLocButton;



    ToggleButton togglebtn = ;



    boolean isFirstLoc = true;// 是否首次定位  




 



    @Override




    public void onCreate(Bundle savedInstanceState) {



        super.onCreate(savedInstanceState);



        SDKInitializer.initialize(getApplicationContext());



        setContentView(R.layout.activity_location);



        judgePermission();



        requestLocButton = (Button) findViewById(R.id.button1);



        mCurrentMode = LocationMode.NORMAL;



        requestLocButton.setText("普通");



        OnClickListener btnClickListener = new OnClickListener() {



            public void onClick(View v) {



                switch (mCurrentMode) {



                    case NORMAL:



                        requestLocButton.setText("跟随");



                        mCurrentMode = LocationMode.FOLLOWING;



                        mBaiduMap



                                .setMyLocationConfigeration(new MyLocationConfiguration(



                                        mCurrentMode, true, mCurrentMarker));



                        break;



                    case COMPASS:



                        requestLocButton.setText("普通");



                        mCurrentMode = LocationMode.NORMAL;



                        mBaiduMap



                                .setMyLocationConfigeration(new MyLocationConfiguration(



                                        mCurrentMode, true, mCurrentMarker));



                        break;



                    case FOLLOWING:



                        requestLocButton.setText("罗盘");



                        mCurrentMode = LocationMode.COMPASS;



                        mBaiduMap



                                .setMyLocationConfigeration(new MyLocationConfiguration(



                                        mCurrentMode, true, mCurrentMarker));



                        break;



                }



            }



        };



        requestLocButton.setOnClickListener(btnClickListener);



 



        togglebtn = (ToggleButton) findViewById(R.id.togglebutton);



        togglebtn



                .setOnCheckedChangeListener(new android.widget.CompoundButton.OnCheckedChangeListener() {



 



                    @Override




                    public void onCheckedChanged(CompoundButton buttonView,




                                                 boolean isChecked) {



                        if (isChecked) {



                            // 普通地图  




                            mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);



                        } else {



                            // 卫星地图  




                            mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);



                        }



 



                    }



                });



 



        // 地图初始化  




        mMapView = (MapView) findViewById(R.id.bmapView);



        mBaiduMap = mMapView.getMap();



        // 开启定位图层  




        mBaiduMap.setMyLocationEnabled(true);



        // 定位初始化  




        mLocClient = new LocationClient(this);



        mLocClient.registerLocationListener(myListener);



        LocationClientOption option = new LocationClientOption();



        option.setOpenGps(true);// 打开gps  




        option.setCoorType("bd09ll"); // 设置坐标类型  




        option.setScanSpan(1000);// 设置发起定位请求的间隔时间为1000ms  




        option.setIsNeedAddress(true);



        mLocClient.setLocOption(option);



        mLocClient.start();



        // 隐藏logo




        View child = mMapView.getChildAt(1);



        if (child !=  && (child instanceof ImageView || child instanceof ZoomControls)){



            child.setVisibility(View.INVISIBLE);



        }



 



        //指南针




        mSensorManager= (SensorManager) getSystemService(Context.SENSOR_SERVICE);



        Sensor magenticSensor=mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);



        Sensor accelerometerSensor=mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);



        mSensorManager.registerListener(listener,magenticSensor,SensorManager.SENSOR_DELAY_GAME);



        mSensorManager.registerListener(listener,accelerometerSensor,SensorManager.SENSOR_DELAY_GAME);



 



        //添加他人位置




        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.touxiang);



        addOthersLocation(经度（double),纬度（double),头像bmp);



    }



 



    //指南针 获取degree值




    private SensorEventListener listener=new SensorEventListener() {



        float[] accelerometerValues=new float[3];



        float[] magenticValues=new float[3];



        @Override




        public void onSensorChanged(SensorEvent sensorEvent) {



            //判断当前是加速度传感器还是地磁传感器




            if(sensorEvent.sensor.getType()==Sensor.TYPE_ACCELEROMETER){



                accelerometerValues=sensorEvent.values.clone();



            }else if(sensorEvent.sensor.getType()== Sensor.TYPE_MAGNETIC_FIELD){



                magenticValues=sensorEvent.values.clone();



            }



            float[] R=new float[9];



            float[] values=new float[3];



            SensorManager.getRotationMatrix(R, , accelerometerValues, magenticValues);



            SensorManager.getOrientation(R,values);



            Log.d("MainActivity","value[0] is"+Math.toDegrees(values[0]));



            degree = Math.toDegrees(values[0]);



 



        }



        @Override




        public void onAccuracyChanged(Sensor sensor, int i) {



        }



    };



 



    public void addOthersLocation(double latitute,double longtitute, Bitmap touxiang) {



 



        Resources r = this.getResources();



        Bitmap bmp= BitmapFactory.decodeResource(r, R.drawable.icon_geo);//标识红点




 



//        //构建Marker图标



//        othersCurrentMarker = BitmapDescriptorFactory



//                .fromResource(R.drawable.icon_geo);



 



        //构建Marker图标




        othersCurrentMarker = BitmapDescriptorFactory



                .fromBitmap(mergeBitmap(bmp,touxiang));//public static BitmapDescriptor fromBitmap(Bitmap image)  + mergeBitmap()




 



        //定义Maker坐标点




        LatLng point = new LatLng(latitute, longtitute);



        //构建MarkerOption，用于在地图上添加Marker




        OverlayOptions option = new MarkerOptions()



                .position(point)



                .icon(othersCurrentMarker);



        //在地图上添加Marker，并显示




        mBaiduMap.addOverlay(option);



    }



 



    //将两张图片合并为一张图片 用作头像




    private Bitmap mergeBitmap(Bitmap firstBitmap, Bitmap secondBitmap) {



        int Width = firstBitmap.getWidth();



        int height = firstBitmap.getHeight();



        secondBitmap = zoomImage(secondBitmap,Width,height);



        Bitmap bitmap = Bitmap.createBitmap(Width, height*2,



                firstBitmap.getConfig());



        Canvas canvas = new Canvas(bitmap);



        canvas.drawBitmap(secondBitmap, new Matrix(), );



        canvas.drawBitmap(firstBitmap, 0, height, );



        return bitmap;



    }



 



    //缩放头像图片




    public  Bitmap zoomImage(Bitmap bgimage, double newWidth,




                             double newHeight) {



        // 获取这个图片的宽和高




        float width = bgimage.getWidth();



        float height = bgimage.getHeight();



        // 创建操作图片用的matrix对象




        Matrix matrix = new Matrix();



        // 计算宽高缩放率




        float scaleWidth = ((float) newWidth) / width;



        float scaleHeight = ((float) newHeight) / height;



        // 缩放图片动作




        matrix.postScale(scaleWidth, scaleHeight);



        Bitmap bitmap = Bitmap.createBitmap(bgimage, 0, 0, (int) width,



                (int) height, matrix, true);



        return bitmap;



    }



 



    /**




     * 定位SDK监听函数 



     */



    public class MyLocationListenner implements BDLocationListener {



 



        @Override




        public void onReceiveLocation(BDLocation location) {



            // map view 销毁后不在处理新接收的位置  




            if (location ==  || mMapView == )



                return;



            MyLocationData locData = new MyLocationData.Builder()



                    .accuracy(location.getRadius())



                    // 此处设置开发者获取到的方向信息，顺时针0-360  




                    .direction((float)degree).latitude(location.getLatitude())



                    .longitude(location.getLongitude()).build();



            mBaiduMap.setMyLocationData(locData);



            if (isFirstLoc) {



                isFirstLoc = false;



                //定义Maker坐标点  https://blog.****.net/u012382791/article/details/53856203




                LatLng ll = new LatLng(location.getLatitude(),



                        location.getLongitude());



                // MapStatusUpdate u = MapStatusUpdateFactory.newLatLng(ll);  




                // 设置缩放比例,更新地图状态  




                float f = mBaiduMap.getMaxZoomLevel();// 19.0




                MapStatusUpdate u = MapStatusUpdateFactory.newLatLngZoom(ll,



                        f - 2);



                mBaiduMap.animateMapStatus(u);



                //地图位置显示  




                Toast.makeText(LocationDemo.this, location.getAddrStr(),



                        Toast.LENGTH_SHORT).show();



            }



 



        }



 



        public void onReceivePoi(BDLocation poiLocation) {



        }



    }



 



    @Override




    protected void onPause() {



        mMapView.onPause();



        super.onPause();



    }



 



    @Override




    protected void onResume() {



        mMapView.onResume();



        super.onResume();



    }



 



    @Override




    protected void onDestroy() {



        // 退出时销毁定位  




        mLocClient.stop();



        // 关闭定位图层  




        mBaiduMap.setMyLocationEnabled(false);



        mMapView.onDestroy();



        mMapView = ;



 



        if(mSensorManager!=){



            mSensorManager.unregisterListener(listener);



        }



        super.onDestroy();



    }



 



 



    //6.0之后要动态获取权限，重要！！！




    protected void judgePermission() {



 



        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {



            // 检查该权限是否已经获取




            // 权限是否已经 授权 GRANTED---授权  DINIED---拒绝




 



            // sd卡权限




            String[] SdCardPermission = {Manifest.permission.WRITE_EXTERNAL_STORAGE};



            if (ContextCompat.checkSelfPermission(this, SdCardPermission[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, SdCardPermission, 100);



            }



 



            //手机状态权限




            String[] readPhoneStatePermission = {Manifest.permission.READ_PHONE_STATE};



            if (ContextCompat.checkSelfPermission(this, readPhoneStatePermission[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, readPhoneStatePermission, 200);



            }



 



            //定位权限




            String[] locationPermission = {Manifest.permission.ACCESS_FINE_LOCATION};



            if (ContextCompat.checkSelfPermission(this, locationPermission[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, locationPermission, 300);



            }



 



            String[] ACCESS_COARSE_LOCATION = {Manifest.permission.ACCESS_COARSE_LOCATION};



            if (ContextCompat.checkSelfPermission(this, ACCESS_COARSE_LOCATION[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, ACCESS_COARSE_LOCATION, 400);



            }



 



 



            String[] READ_EXTERNAL_STORAGE = {Manifest.permission.READ_EXTERNAL_STORAGE};



            if (ContextCompat.checkSelfPermission(this, READ_EXTERNAL_STORAGE[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, READ_EXTERNAL_STORAGE, 500);



            }



 



            String[] WRITE_EXTERNAL_STORAGE = {Manifest.permission.WRITE_EXTERNAL_STORAGE};



            if (ContextCompat.checkSelfPermission(this, WRITE_EXTERNAL_STORAGE[0]) != PackageManager.PERMISSION_GRANTED) {



                // 如果没有授予该权限，就去提示用户请求




                ActivityCompat.requestPermissions(this, WRITE_EXTERNAL_STORAGE, 600);



            }



 



        }else{



            //doSdCardResult();




        }



        //LocationClient.reStart();




    }



}  

效果截图：

左上角红点带头像的就是别人的位置显示