使用百度地图开发一个导航定位demo-android学习之旅(77)

首先介绍如何导入百度地图

步骤(其实官方文档写的很清楚了)http://developer.baidu.com/map/index.php?title=androidsdk/guide/introduction

1.注册开发者账号

2.注册你的应用,登陆控制台,然后输入数字签名和包名,得到开发Id

3. 下载android sdk进行配置,我用的是Android studio,配置步骤是,在app底下的libs下导入,没有的话新建,在src/main/目录下新建jniLibs目录,放下那些搜文件,arm64-v8a,armeabi,armeabi-v7a,x86,x86_64,一共5个文件,这个版本目前是这样,参考网址http://developer.baidu.com/map/index.php?title=androidsdk/guide/buildproject

4.在Manifest添加标签

<application>
    <meta-data
        android:name="com.baidu.lbsapi.API_KEY"
        android:value="开发者 key" />
</application>

5.添加所需权限

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_SETTINGS" />

6.在布局中加入这个控件

<com.baidu.mapapi.map.MapView
    android:id="@+id/bmapView"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:clickable="true" />

7.在类中初始化代码

public class MainActivity extends Activity {
    MapView mMapView = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //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);
        //获取地图控件引用
        mMapView = (MapView) findViewById(R.id.bmapView);
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        //在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
        mMapView.onDestroy();
    }
    @Override
    protected void onResume() {
        super.onResume();
        //在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理
        mMapView.onResume();
        }
    @Override
    protected void onPause() {
        super.onPause();
        //在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理
        mMapView.onPause();
        }
    }

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

我写了一个demo,实现了查看卫星地图,实时路况,以及定位和基于android传感器的方向导航

github地址

https://github.com/fengsehng/BaiduMapDemoTest

截图

public class FlyControlBaiduSdk extends Activity{
    private MapView mapView;
    private BaiduMap mBaiduMap;
    private Button normal,site,traffic,myLocation;
    private Context context;
    //定位相关
    private LocationClient locationClient;
    private MyLocationListener myLocationListener;
    private boolean isFirstIn = true;
    private double myLatitude;
    private double myLongtitude;
    //自定义定位图标相关
    private BitmapDescriptor bitmapDescriptor;
    private float mCurrentX;
    //传感器相关
    private MyOrientationlistener mMyOrientationListener;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        SDKInitializer.initialize(getApplicationContext());
        setContentView(R.layout.flycontrol_baidu);
        this.context = this;
        initViews();
        initLocation();
        normal.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
            }
        });
        site.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);
            }
        });
        traffic.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (mBaiduMap.isTrafficEnabled()){
                    mBaiduMap.setTrafficEnabled(false);
                }else {
                    mBaiduMap.setTrafficEnabled(true);
                }
            }
        });
        myLocation.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LatLng latLng = new LatLng(myLatitude,myLongtitude);
                MapStatusUpdate msu = MapStatusUpdateFactory.newLatLng(latLng);
                mBaiduMap.animateMapStatus(msu);
            }
        });
    }
    private void initViews(){
        mapView = (MapView) findViewById(R.id.bmapView);
        MapStatusUpdate msu = MapStatusUpdateFactory.zoomTo(15.0f);
        mBaiduMap = mapView.getMap();
        mBaiduMap.setMapStatus(msu);
        normal = (Button) findViewById(R.id.normal);
        site = (Button) findViewById(R.id.site);
        traffic = (Button) findViewById(R.id.traffic);
        myLocation = (Button) findViewById(R.id.myLocation);
    }
    private void initLocation(){
        locationClient = new LocationClient(this);
        myLocationListener = new MyLocationListener();
        locationClient.registerLocationListener(myLocationListener);
        LocationClientOption locationClientOption = new LocationClientOption();
        locationClientOption.setCoorType("bd09ll");
        locationClientOption.setIsNeedAddress(true);
        locationClientOption.setOpenGps(true);
        locationClientOption.setScanSpan(1000);
        locationClient.setLocOption(locationClientOption);
        //初始化图标
        bitmapDescriptor = BitmapDescriptorFactory.fromResource(R.drawable.navii);
        mMyOrientationListener = new MyOrientationlistener(this);
        mMyOrientationListener.setOnOrientationListener(new MyOrientationlistener.OnOrientationListener() {
            @Override
            public void onOrientationChange(float x) {
                mCurrentX = x;
            }
        });
    }
    //初始化定位
    @Override
    protected void onStart() {
        super.onStart();
        //开始定位
        mBaiduMap.setMyLocationEnabled(true);
        if (!locationClient.isStarted()){
            locationClient.start();}
        //开始方向传感器
        mMyOrientationListener.start();
    }
    @Override
    protected void onResume() {
        super.onResume();
        mapView.onResume();
    }
    @Override
    protected void onPause() {
        super.onPause();
        mapView.onPause();
    }
    //停止定位
    @Override
    protected void onStop() {
        super.onStop();
        //停止定位
        mBaiduMap.setMyLocationEnabled(false);
        locationClient.stop();
        //停止方向传感器
        mMyOrientationListener.stop();
    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }
    //定位监听类
    private class MyLocationListener implements BDLocationListener{
        @Override
        public void onReceiveLocation(BDLocation bdLocation) {
            MyLocationData myLocationData = new MyLocationData.Builder().accuracy(bdLocation.getRadius())//
                    .direction(mCurrentX).latitude(bdLocation.getLatitude()).longitude(bdLocation.getLongitude()).build();
            mBaiduMap.setMyLocationData(myLocationData);
            //设置经纬度
            myLatitude = bdLocation.getLatitude();
            myLongtitude = bdLocation.getLongitude();
            //设置定位图标
            MyLocationConfiguration configuration = new MyLocationConfiguration(MyLocationConfiguration.LocationMode.NORMAL,true,bitmapDescriptor);
            mBaiduMap.setMyLocationConfigeration(configuration);
            if (isFirstIn){
                LatLng latLng = new LatLng(bdLocation.getLatitude(),bdLocation.getLongitude());
                MapStatusUpdate msu = MapStatusUpdateFactory.newLatLng(latLng);
                mBaiduMap.animateMapStatus(msu);
                isFirstIn = false;
                Toast.makeText(context,bdLocation.getAddrStr(),Toast.LENGTH_LONG).show();
            }
        }
    }
}

传感器类代码

public class MyOrientationlistener implements SensorEventListener{
    private SensorManager mSensorManager;
    private Sensor mSensor;
    private Context mContext;
    private float lastX;
    public MyOrientationlistener(Context context){
        this.mContext = context;
    }
    public void start(){
        mSensorManager = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
        if (mSensorManager != null){
            mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION);
        }
        if (mSensor != null){
            mSensorManager.registerListener(this,mSensor,SensorManager.SENSOR_DELAY_UI);
        }
    }
    public void stop(){
        mSensorManager.unregisterListener(this);
    }
    @Override
    public void onSensorChanged(SensorEvent event) {
        if (event.sensor.getType() == Sensor.TYPE_ORIENTATION){
            float x = event.values[SensorManager.DATA_X];
            if (Math.abs(x-lastX) > 1.0){
                if (onOrientationListener != null){
                    onOrientationListener.onOrientationChange(x);
                }
            }
            lastX = x;
        }
    }
    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {
    }
    private OnOrientationListener onOrientationListener;
    public void setOnOrientationListener(OnOrientationListener onOrientationListener) {
        this.onOrientationListener = onOrientationListener;
    }
    public interface OnOrientationListener{
        void onOrientationChange(float x);
    }
}

布局代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <com.baidu.mapapi.map.MapView
        android:id="@+id/bmapView"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="10"
        android:clickable="true" />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:orientation="horizontal">
        <Button
            android:text="我的位置"
            android:id="@+id/myLocation"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            style="@style/button_back"/>
        <Button
            android:text="普通地图"
            android:id="@+id/normal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            style="@style/button_back"/>
        <Button
            android:text="卫星地图"
            android:id="@+id/site"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            style="@style/button_back"/>
        <Button
            android:text="实时交通"
            android:id="@+id/traffic"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            style="@style/button_back"/>
    </LinearLayout>
</LinearLayout>