定位

本单元介绍显示DaxiMap地图的最简单的Android是咧

添加密钥（Key）#

在application中添加开发密钥

<application>
    <meta-data android:name="com.daximap.mapapi.appkey" android:value="开发者 key" />

修改配置#

修改application中配置

<applicatoin 
        ...
        android:usesCleartextTraffic="true" 
        />

增加运行访问沙盒的配置

<meta-data android:name="ScopedStorage" android:value="true" />

添加所需权限#

使用DXMapSDK需要添加读写权限和网络访问权限

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
// 自定义缓存目录添加下面两个
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
// 访问蓝牙的权限
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
// 定位的权限
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

初始化DaxiLocation SDK#

在应用程序创建时初始化 SDK引用的Context 全局变量，注意这个MainApplication需要在AndroidManifest.xml里注册

public class MainApplication extends Application{
    @Override
    public void onCreate() {
        super.onCreate();
        //初始化SDK
        DXSDK.init(this);
        // 设置Token,在地图管理页面获取
        DXSDK.setToken("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
        DXSDK.setConfigVersion(3);
    }
}

将application对应的类改为MainApplication

    <application
        android:name="com.daxi.map3d.demo.MainApplication" />

public class MainActivity extends Activity {
    DXMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //在android 6.0以上的系统中地图需要动态申请权限
        DXPermissionVerifyHelper.requestEssentialPermissions(this, new DXPermissionVerifyListener(){
            @Override
            public void hasPermission(List<String> granted, boolean isAll) {
                if (!isAll) return;
                // 所有权限都已经获取
                initLocation();
                startLocation();
            }

            @Override
            public void noPermission(List<String> denied, boolean quick) {

            }
        });
    }

    // 初始化定位
     private void initLocation(){
        try {
            final Context context = this;
            mLocationClient = new DXLocationClient();
            DXLocationClientOption locationOption = getDefaultOption();
            mLocationClient.initialize(context, locationOption);
            mLocationClient.setLocationListener(new DXLocationListener() {
                @Override
                public boolean onCreate() {
                    return false;
                }

                @Override
                public void onStartLocationSuccessful() {
                    Toast.makeText(context, "开始定位", Toast.LENGTH_SHORT).show();
                }

                @Override
                public void onStartLocationFailed(int code) {
                    if(code == 1){
                        // GPS permission denied
                        Toast.makeText(context, "没有获得GPS定位权限", Toast.LENGTH_SHORT).show();
                    }else if(code == 2){
                        // Permission granted but GPS switch off
                        Toast.makeText(context, "没有打开GPS", Toast.LENGTH_SHORT).show();
                    }else if(code == 6){
                        // Beacon permission denied
                        Toast.makeText(context, "没有获得蓝牙权限", Toast.LENGTH_SHORT).show();
                    }else if(code == 7){
                        // ermission granted but beacon switch off
                        Toast.makeText(context, "没有打开蓝牙", Toast.LENGTH_SHORT).show();
                    }
                }

                @Override
                public void onLocationChanged(DXLocation location) {
                    //以下代码为示例，具体使用可以查看 DxLocation返回的内部参数 选择自己所需要的
                    Calendar ca = Calendar.getInstance();
                    int day = ca.get(Calendar.DAY_OF_MONTH);
                    int hour = ca.get(Calendar.HOUR_OF_DAY);
                    int min = ca.get(Calendar.MINUTE);
                    int second = ca.get(Calendar.SECOND);

                    DecimalFormat decimalFormat = new DecimalFormat("###################.########");
                    String floorName = location.mFloorId;//"";
                    final String str = day + " " + hour + ":" + min + ":" + second + " 坐标:"  + decimalFormat.format(location.longitude)
                            + "," + decimalFormat.format(location.latitude)
                            + "," + location.mBDID
                            + "," + floorName
                            + "," + location.CheckPointResult
                            + "," + location.mLastBleUpateTimeStamp
                            +  "\n";
                    Log.d(TAG, "onScanResult:" + str);
                }

                @Override
                public void onDidEnterRegion(String geoName) {

                }

                @Override
                public void onDidExitRegion(String geoName) {

                }

                @Override
                public void onBeaconDataUpdated(DXBeaconDevice device) {

                }

                @Override
                public void onSensorDataUpdated(String data) {

                }
            });

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //开始定位
     private void startLocation(){
        try {
            //根据控件的选择，重新设置定位参数
//            resetOption();
            // 设置定位参数
//            mLocationClient.setLocationOption(locationOption);
            // 启动定位
            mLocationClient.startLocation();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onBackPressed() {
        if (mMap != null) {
            mMap.onDestroy();
        }
        super.onBackPressed();
    }
}