GIS地图学习笔记二之Android开发

新项目中需要用到GIS地图，触及自己的知识盲区。所以有必要去学习一下，这里把学习过程与思考记录一下。

我这里使用的是ArcGIS Runtime SDK 100.2.0，ArcGIS Runtime还有一个版本10.2.*，这个版本的ArcGIS Runtime SDK 的使用可以参考《ArcGIS Runtime SDK for Android开发笔记》系列blog。

1、找资料

1、适用于Android的ArcGIS Runtime SDK为Android设备开发GIS地图，这里有android开发的流程，SDK的相关API。ArcGIS Runtime SDKs

2、GIS地图制作工具–ArcGIS Pro

2、简单使用

明白相关资料和工具的地址之后，我们就可以开始开发了。

1、在项目的build.gradle文件中，添加以下代码

allprojects {repositories {jcenter()// Add the Esri public Bintray Maven repositorymaven {url 'https://esri.bintray.com/arcgis'}}
}

2、在app Module的build.gradle文件中，添加以下代码

 //arcgis-androidcompile 'com.esri.arcgisruntime:arcgis-android:100.1.0'

3、在项目的清单文件AndroidManifest.xml中，添加以下权限

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-feature android:glEsVersion="0x00020000" android:required="true" />

uses-feature说明:

AndroidManifest中的uses-feature配置用来声明一个app在运行时所依赖的外部的硬件或软件特征（feature），uses-feature还提供了一个required属性配置，表示此项依赖的软硬件特征是否是必须的，当它设置为true表示此app运行时必须使用此项特征，如果没有则无法工作，如果它设置为false，表示应用在运行时需要用到这些特征，但如果没有，应用可能会有一部分功能会受到影响，但大部分功能还是可以正常工作。例如一个拍照app，它使用时必须开启设备的摄像头，在没有摄像头的机器上任何功能都无法使用，这就需要通过uses-feature来声明该应用需要摄像头，并将required设置为true。再比如一个支付app，它支持扫码支付的功能，这项功能同样需要开启设备的摄像头，因此需要通过uses-feature声明该应用需要摄像头，但如果一个设备没有摄像头，仅意味着扫码支付的功能无法使用，其他支付方式仍然可以使用，这时就可以设置required属性为false，表明此项feature的需求不是必须的。

布局文件

    <com.esri.arcgisruntime.mapping.view.MapViewandroid:id="@+id/mapView"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_below="@+id/main_header" />

代码中获取GIS地图信息

mMapView = (MapView) findViewById(R.id.mapView);
ArcGISMap map = new ArcGISMap(Basemap.Type.TOPOGRAPHIC, 34.056295, -117.195800, 16);
mMapView.setMap(map);

注意加上下面的代码

@Override
protected void onPause(){mMapView.pause();super.onPause();
}@Override
protected void onResume(){super.onResume();mMapView.resume();
}

到这里里的程序应该已经可以显示出Gis地图了。

3、相关概念

离线地图

新项目会经常性的在无信号地区进行相关操作，所以需要使用离线地图。ArcGis关于离线地图的说明。

您的应用程序可以使用OfflineMapTask创建地图的本地副本。此任务请求生成脱机数据所需的所有服务，然后将该数据下载并存储到您的设备中。在地图下载后，您的应用可以脱机并开始使用离线地图。有关如何使用OfflineMapTask的更多详细信息，请参阅创建离线地图文档的服务部分。

在版本100.1中，OfflineMapTask支持以下图层类型：平铺服务，要素服务和要素集合

移动地图包

可以使用ArcGIS Pro将离线地图打包到移动地图包（.mmpk文件）中。每个软件包可以包含多个地图，相关的图层和数据，以及可选的网络和定位器。将移动地图包下载或装载到设备后，可以使用MobileMapPackage类打开包并开始使用离线地图。有关如何使用移动地图包的更多详细信息，请参阅创建离线地图文档。

数据源

有很多的地理数据来源。

1、在线数据源由在线GIS Web服务提供，其中包括地图服务和功能服务。

ArcGIS地图服务分为两大类：平铺式和动态式。平铺服务根据图层的平铺方案提供预先生成（缓存）的图片。可以将瓦片作为栅格图像瓦片或作为矢量数据瓦片来提供。然后该图层在客户端应用程序中组装这些图片。您可以使用平铺图层访问平铺的地图服务。但是，动态地图服务提供了按照客户要求的即时创建的地图图像。您可以使用地图图像层访问动态地图服务。

功能服务允许您访问地图中的各个功能。要素服务（例如来自ArcGIS Enterprise和ArcGIS Online的要素服务）会返回来自单个图层的要素集，以响应地图的可见范围或属性或空间查询。您可以使用要素图层来访问此类服务。

ArcGIS图像服务通过Web服务提供对栅格数据的访问。图像服务可以像地图服务一样缓存以提高性能。当图像服务被缓存时，它支持动态访问和平铺访问。动态访问提供访问数据，查询和下载，以及访问单个项目。它还提供访问数据用于处理和分析，而平铺访问提供了更快和可扩展的预加载作为平铺服务。要将图像服务作为动态图像服务访问，请使用栅格图层，该图层允许您检索图像服务的元数据，并使用具有栅格函数的数据进行分析。要将缓存的图像服务作为平铺服务访问，请使用平铺图层，该图层仅允许您检索平铺服务的元数据并显示平铺图像。

2、离线数据源，您还可以访问位于本地的数据源，例如移动地图包或平铺包。这些本地数据源也具有特定类型的层来访问数据。

图层

下图显示了API中的主要图层类和继承关系。斜体的类名是抽象的。

通用图层属性

所有图层类都从Layer类继承公共属性。这个类实现了Loadable接口，它提供了加载图层资源的异步模式。该类还实现了LayerContent接口。下面列出了该类及其接口的一些常见属性：

使用getName方法显示图层的名称。
使用getDescription方法查看图层的描述。
使用getFullExtent方法获取图层的完整范围。
使用getSpatialReference方法确定图层使用的空间参考。
使用setVisible方法隐藏和显示图层。
使用opacity属性控制图层透明或不透明的使用setOpacity方法。
使用setMinScale和setMaxScale方法更改可见图层的比例范围阈值。
具有基于图像的数据源的图层可以是图像调整图层（继承自ImageAdjustmentLayer），其允许在运行时调整图层的亮度，对比度和伽马值。基础数据源不会更改。

每个图层类都用作底图或操作图层。

……….

4、离线地图加载

4-1、tpk-离线图层包加载

手机中的离线地图碎片位置/data/data/com.cnbs.gisdemo/arcgis/GisTest.tpk

mMapView = (MapView) findViewById(R.id.mapView);
Utils utils = new Utils();
//tpk--缓存显示
TileCache tileCache = new TileCache(utils.Save_Path  + "/" +  utils.File_name);
ArcGISTiledLayer tiledLayer = new ArcGISTiledLayer(tileCache);
tiledLayer.setMinScale(8000);
tiledLayer.setMaxScale(1600);
Basemap basemap = new Basemap(tiledLayer);
ArcGISMap map = new ArcGISMap(basemap);
mMapView.setMap(map);

4-2、mmpk-离线地图包加载

private void loadMobileMapPackage(String mmpkFile){mapPackage = new MobileMapPackage(mmpkFile);mapPackage.loadAsync();mapPackage.addDoneLoadingListener(new Runnable() {@Overridepublic void run() {if(mapPackage.getLoadStatus() == LoadStatus.LOADED && mapPackage.getMaps().size() > 0){mMapView.setMap(mapPackage.getMaps().get(0));}else{// Log an issue if the mobile map package fails to load}}});}

5、地图相关操作

5-0、在地图点击的位置绘制图标

 mMapView.setOnTouchListener(new DefaultMapViewOnTouchListener(this, mMapView) {@Overridepublic boolean  onSingleTapConfirmed(MotionEvent v) {android.graphics.Point screenPoint=new android.graphics.Point(Math.round(v.getX()), Math.round(v.getY()));Point clickPoint = mMapView.screenToLocation(screenPoint);//获取点击位置的经纬度String x = CoordinateFormatter.toLatitudeLongitude(clickPoint, CoordinateFormatter.LatitudeLongitudeFormat.DECIMAL_DEGREES, 4);GraphicsOverlay graphicsOverlay_1=new GraphicsOverlay();//加个点
//                SimpleMarkerSymbol pointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.DIAMOND, Color.RED, 10);//加个图标BitmapDrawable drawable = (BitmapDrawable) getResources().getDrawable(R.drawable.ic_map_blue);PictureMarkerSymbol pointSymbol = new PictureMarkerSymbol(drawable);Graphic pointGraphic = new Graphic(clickPoint,pointSymbol);graphicsOverlay_1.getGraphics().add(pointGraphic);mMapView.getGraphicsOverlays().add(graphicsOverlay_1);return true;}});

点击事件对象MotionEvent

    MotionEvent {action=ACTION_UP, id[0]=0, x[0]=455.5782, y[0]=1095.3904, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=351739375, downTime=351739296, deviceId=5, source=0x1002 }

5-1、显示点击位置的经纬度

要显示某个点的经纬度，只需要使用这个方法即可

String x = CoordinateFormatter.toLatitudeLongitude(clickPoint, CoordinateFormatter.LatitudeLongitudeFormat.DECIMAL_DEGREES, 4);

返回字符串示例

38.0431N 114.5119E

5-2、在地图上绘制点和线

用直角坐标系画

private void addGraphicsOverlay() {// point graphicPoint pointGeometry0 = new Point(12724154.362253, 3573937.672715, SpatialReferences.getWebMercator());Point pointGeometry1 = new Point(12724178.110558, 3573928.336934, SpatialReferences.getWebMercator());Point pointGeometry2 = new Point(12724205.001669, 3573832.994711, SpatialReferences.getWebMercator());// red diamond point symbol
//        SimpleMarkerSymbol pointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.DIAMOND, Color.RED, 10);BitmapDrawable drawable = (BitmapDrawable) getResources().getDrawable(R.drawable.ic_map_blue);PictureMarkerSymbol pointSymbol = new PictureMarkerSymbol(drawable);// create graphic for pointGraphic pointGraphic0 = new Graphic(pointGeometry0);Graphic pointGraphic1 = new Graphic(pointGeometry1);Graphic pointGraphic2 = new Graphic(pointGeometry2);// create a graphic overlay for the pointGraphicsOverlay pointGraphicOverlay = new GraphicsOverlay();// create simple rendererSimpleRenderer pointRenderer = new SimpleRenderer(pointSymbol);pointGraphicOverlay.setRenderer(pointRenderer);// add graphic to overlaypointGraphicOverlay.getGraphics().add(pointGraphic0);pointGraphicOverlay.getGraphics().add(pointGraphic1);pointGraphicOverlay.getGraphics().add(pointGraphic2);// add graphics overlay to the MapViewmMapView.getGraphicsOverlays().add(pointGraphicOverlay);// line graphicPolylineBuilder lineGeometry = new PolylineBuilder(SpatialReferences.getWebMercator());lineGeometry.addPoint(12724178.110558, 3573928.336934);lineGeometry.addPoint(12724205.001669, 3573832.994711);// solid blue line symbolSimpleLineSymbol lineSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, R.color.colorAccent, 2);// create graphic for polylineGraphic lineGraphic = new Graphic(lineGeometry.toGeometry());// create graphic overlay for polylineGraphicsOverlay lineGraphicOverlay = new GraphicsOverlay();// create simple rendererSimpleRenderer lineRenderer = new SimpleRenderer(lineSymbol);// add graphic to overlaylineGraphicOverlay.setRenderer(lineRenderer);// add graphic to overlaylineGraphicOverlay.getGraphics().add(lineGraphic);// add graphics overlay to the MapViewmMapView.getGraphicsOverlays().add(lineGraphicOverlay);}

用地理坐标系（经纬度）画
和上面的是一样的，只是创建点的方式不一样

Point pointGeometry0 = CoordinateFormatter.fromLatitudeLongitude("30.5449N 114.3034E", null);
Point pointGeometry1 = CoordinateFormatter.fromLatitudeLongitude("30.5459N 114.3035E", null);
Point pointGeometry2 = CoordinateFormatter.fromLatitudeLongitude("30.5469N 114.3036E", null);

画线就有点不同了

Point pointGeometry0 = CoordinateFormatter.fromLatitudeLongitude("30.5469N 114.3036E", null);
Point pointGeometry1 = CoordinateFormatter.fromLatitudeLongitude("30.5459N 114.3035E", null);
Point pointGeometry2 = CoordinateFormatter.fromLatitudeLongitude("30.5449N 114.3034E", null);
PointCollection borderCAtoNV = new PointCollection(SpatialReferences.getWgs84());
borderCAtoNV.add(pointGeometry0);
borderCAtoNV.add(pointGeometry1);
borderCAtoNV.add(pointGeometry2);
Polyline polyline = new Polyline(borderCAtoNV);SimpleLineSymbol lineSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, R.color.colorAccent, 2);
SimpleRenderer lineRenderer = new SimpleRenderer(lineSymbol);
lineGraphic = new Graphic(polyline, lineSymbol);
lineGraphicOverlay = new GraphicsOverlay();
lineGraphicOverlay.setRenderer(lineRenderer);
lineGraphicOverlay.getGraphics().add(lineGraphic);
mMapView.getGraphicsOverlays().add(lineGraphicOverlay);

5-3、选中的要素闪烁

handler.postDelayed(runnable, 1000);

private boolean isShow;private int recLen = 5;//设置有效时间Handler handler = new Handler();Runnable runnable = new Runnable() {@Overridepublic void run() {isShow = !isShow;recLen--;handler.postDelayed(runnable, 1000);ListenableList<GraphicsOverlay> list = mMapView.getGraphicsOverlays();GraphicsOverlay overlay = list.get(1);overlay.setSelectionColor(R.color.colorPrimary);overlay.setVisible(isShow);if (recLen <= 0) {recLen = 5;//重置Message message = new Message();message.what = 1;handlerStop.sendMessage(message);}}
};final Handler handlerStop = new Handler() {public void handleMessage(Message msg) {switch (msg.what) {case 1:handler.removeCallbacks(runnable);ListenableList<GraphicsOverlay> list = mMapView.getGraphicsOverlays();GraphicsOverlay overlay = list.get(1);overlay.setSelectionColor(R.color.colorAccent);overlay.setVisible(true);break;}super.handleMessage(msg);}};

 @Overrideprotected void onDestroy() {super.onDestroy();handler.removeCallbacks(runnable);}

5-4、设置地图中心点

  Point point1 = new Point(12724178.110558, 3573932.336934, SpatialReferences.getWebMercator());mMapView.setViewpointCenterAsync(point1,3800);

5-5、切换图层

在Runtime100里，MapView是通过ArcGISMap类来完成图层的管理。

首先是底图的加载。ArcGISMap类是将底图和业务图层分开的，对于底图，ArcGISMap里用了Baemap类来进行管理。
例子就是上面的4、离线地图加载

手机中的离线地图碎片位置`/data/data/com.cnbs.gisdemo/arcgis/GisTest.tpk`

mMapView = (MapView) findViewById(R.id.mapView);
Utils utils = new Utils();
//tpk--缓存显示
TileCache tileCache = new TileCache(utils.Save_Path  + "/" +  utils.File_name);
ArcGISTiledLayer tiledLayer = new ArcGISTiledLayer(tileCache);
tiledLayer.setMinScale(8000);
tiledLayer.setMaxScale(1600);
Basemap basemap = new Basemap(tiledLayer);
ArcGISMap map = new ArcGISMap(basemap);
mMapView.setMap(map);

我们要切换底图时候，仅需要给ArcGISMap类重新赋值一个底图即可。

button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Basemap basemap = new Basemap(layer);map.setBasemap(basemap);mMapView.setMap(arcGISMap);}
});

5-6、地图要素点击事件

    //添加点击事件MapViewTouchListener mMapViewTouchListener = new MapViewTouchListener(this, mMapView);mMapView.setOnTouchListener(mMapViewTouchListener);//添加覆盖物addGraphicsOverlay();

class MapViewTouchListener extends DefaultMapViewOnTouchListener {public MapViewTouchListener(Context context, MapView mapView) {super(context, mapView);}@Overridepublic boolean onSingleTapConfirmed(MotionEvent e) {// get the screen point where user tappedandroid.graphics.Point screenPoint = new android.graphics.Point((int) e.getX(), (int) e.getY());final ListenableFuture<List<IdentifyGraphicsOverlayResult>> overlaysAsync = mMapView.identifyGraphicsOverlaysAsync(screenPoint, 10.0, false, 2);overlaysAsync.addDoneListener(new Runnable() {@Overridepublic void run() {try {List<IdentifyGraphicsOverlayResult> overlayResultList = overlaysAsync.get();if (!overlayResultList.isEmpty() && overlayResultList.size() >= 0) {//如果只取第一个点到的，就不用for循环了，直接get(0)；如果需要取所有点击到的覆盖物，就可以用for循环int size = overlayResultList.size();if (size > 1) {showTV.setText("你点到了 --" + size + "个元素");} else {showTV.setText("GISDemo");}
//                            for (int i = 0; i < size; i++) {List<Graphic> graphics = overlayResultList.get(0).getGraphics();
//                                List<Graphic> graphics = overlayResultList.get(i).getGraphics();if (!graphics.isEmpty() && graphics.size() >= 0) {Graphic graphic = graphics.get(0);//取点击的第一个Map<String, Object> map = graphic.getAttributes();String hint = (String) map.get("hint");Toast.makeText(getApplicationContext(), "你点到了 - " + hint, Toast.LENGTH_SHORT).show();}}} catch (InterruptedException | ExecutionException ie) {ie.printStackTrace();}}});return super.onSingleTapConfirmed(e);}}

5-7、切换图层时，地图保持原位置

加上点击事件限制是为了防止用户暴力点击，因为图层加载需要时间；方法是获取地图当前中心点和缩放比，切换底图后重新赋值

private long clickTime = 0;
...case R.id.layer_change:     //切换图层需要加载地图，不让用户切换的太快，防止暴力点击if (System.currentTimeMillis() - clickTime > 1000) {clickTime = System.currentTimeMillis();//计算中心点int measuredWidth = mMapView.getMeasuredWidth();int measuredHeight = mMapView.getMeasuredHeight();android.graphics.Point point = new android.graphics.Point(measuredWidth / 2, measuredHeight / 2);Point centerDot = mMapView.screenToLocation(point);double mapScale = mMapView.getMapScale();//我们要切换底图时候，仅需要给ArcGISMap类重新赋值一个底图即可。isStreetMap = !isStreetMap;if (isStreetMap) {String streetUrl = httpMethods.getMap_Street_URL();loadBasemap(streetUrl);} else {String satelliteUrl = httpMethods.getMap_Satellite_URL();loadBasemap(satelliteUrl);}if (centerDot == null)centerDot = CoordinateFormatter.fromLatitudeLongitude(center, SpatialReferences.getWgs84());mMapView.setViewpointCenterAsync(centerDot, mapScale);}break;

 //加载地图，提成方法，方便切换底图private void loadBasemap(String url) {//地图服务端地址ArcGISTiledLayer tiledLayer = new ArcGISTiledLayer(url);tiledLayer.setMinScale(MinScale);  //控制缩小，数值越大，缩小倍数越大，看的范围越广tiledLayer.setMaxScale(MaxScale);   //控制放大，数值越小，放大倍数越高Basemap basemap = new Basemap(tiledLayer);mArcGISMap = new ArcGISMap(basemap);mMapView.setMap(mArcGISMap);}

6、完整代码

写完不放完整代码，总感觉不太好。O(∩_∩)O哈哈哈~

public class MainActivity extends BaseActivity {@BindView(R.id.header_title)TextView headerTitle;@BindView(R.id.header_right_img)ImageView headerRightImg;@BindView(R.id.header_left_img)ImageView headerLeftImg;@BindView(mapView)MapView mMapView;@BindView(R.id.activity_main)RelativeLayout activityMain;private GraphicsOverlay pointGraphicOverlay;private GraphicsOverlay lineGraphicOverlay;private static double MinScale = 5000000;private static double MaxScale = 1000;private double CurrentScale = 9000;private double ScaleChange = 1000;        //每次放大或缩小的尺寸private ArcGISMap mArcGISMap;private String userId;private List<MapTaskPointBean> mapTaskPoints;private String center = "38.048,114.507250";  //石家庄中心private MyApplication instance;private boolean isStreetMap = true;private boolean isOffline;private String SDPath = Environment.getExternalStorageDirectory() + "/CableInspection/";private LocationManager locationManager;private String provider;private final String MAX = "+";private final String MIN = "-";private Location mLocation;private int taskType = -1;private int taskId = -1;private int objectTypeId = -1;private String taskName = "";private GraphicsOverlay overlayDevice;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ButterKnife.bind(this);instance = MyApplication.getInstance();UserBean userBean = instance.getUserInfo();userId = userBean == null ? "-1" : userBean.getUserId();isStreetMap = instance.getMapType();initArcGis();initView();hasCurrentLocation();//打开地图时默认定位到当前位置initMap();}//可见的时候，地图上的标识物要绘制@Overrideprotected void onResume() {super.onResume();mMapView.resume();mMapView.getGraphicsOverlays().clear();if (overlayDevice != null) mMapView.getGraphicsOverlays().add(overlayDevice);if (mapTaskPoints != null) mapTaskPoints.clear();initData();//添加覆盖物addGraphicsOverlay();}//获取ArcGis的许可private void initArcGis() {ArcGISRuntimeEnvironment.setLicense("runtimelite,1000,rud4163659509,none,1JPJD4SZ8L4HC2EN0229");}private void initView() {headerTitle.setText(R.string.app_name_all);headerLeftImg.setVisibility(View.VISIBLE);headerRightImg.setVisibility(View.VISIBLE);headerLeftImg.setImageResource(R.mipmap.user_mag);}//在地图上显示当前任务的位置private void initData() {List<TaskList> taskLists = DataSupport.where("user_id =? and task_status =?",userId + "", MConstant.Task_Current + "").find(TaskList.class);if (taskLists != null && taskLists.size() > 0) {TaskList list = taskLists.get(0);int taskType = list.getTask_type();int taskId = list.getTask_id();//正序排序，以保证通道、本体在其他任务点的前面获取List<TaskPoint> taskPoints = DataSupport.where("user_id =? and task_id =? and task_type =?", userId + "", taskId + "", taskType + "").find(TaskPoint.class);if (taskPoints == null || taskPoints.size() <= 0) return;//任务点集合mapTaskPoints = new ArrayList<>();for (int i = 0; i < taskPoints.size(); i++) {TaskPoint taskPoint = taskPoints.get(i);int taskPointId = taskPoint.getTask_point_id();int typeId = taskPoint.getObject_type_id();String location = taskPoint.getTask_point_location();if (TextUtils.isEmpty(location)) return;String[] split = location.split(";");if (i == 0) center = split[0].replace(",", " ");  //用第一个任务点作为当前地图的中心点switch (typeId) {case MConstant.ObjType_td:  //通道----管网if (split.length > 1) {List<Point> line = new ArrayList<>();MapTaskPointBean mapTaskPointBean = new MapTaskPointBean();for (int j = 0; j < split.length; j++) {String dot = split[j];String replace = dot.replace(",", " ");Point lineDot = CoordinateFormatter.fromLatitudeLongitude(replace, SpatialReferences.getWgs84());line.add(lineDot);}mapTaskPointBean.setTaskType(taskType);mapTaskPointBean.setTaskId(taskId);mapTaskPointBean.setTaskPointId(taskPointId);mapTaskPointBean.setDot(false);//线mapTaskPointBean.setLine(line);mapTaskPoints.add(mapTaskPointBean);}break;case MConstant.ObjType_gj:   //工井case MConstant.ObjType_fhq:   //防火墙case MConstant.ObjType_mhzz:   //灭火装置if (split.length > 0) {MapTaskPointBean mapTaskPointBean = new MapTaskPointBean();String dot = split[0];String replace = dot.replace(",", " ");if (i == taskPoints.size() / 2) {center = replace;}Point point = CoordinateFormatter.fromLatitudeLongitude(replace, SpatialReferences.getWgs84());mapTaskPointBean.setTaskType(taskType);mapTaskPointBean.setTaskId(taskId);mapTaskPointBean.setTaskPointId(taskPointId);mapTaskPointBean.setDot(true);//点mapTaskPointBean.setPoint(point);mapTaskPoints.add(mapTaskPointBean);}break;case MConstant.ObjType_bt:   //本体break;}}}}private long clickTime = 0;@OnClick({R.id.header_left_img, R.id.header_right_img, R.id.map_xj_tv, R.id.map_xq_tv,R.id.layer_change, R.id.map_location, R.id.scale_max, R.id.scale_min})public void onClick(View view) {switch (view.getId()) {case R.id.header_left_img:startActivity(new Intent(MainActivity.this, UserActivity.class));break;case R.id.header_right_img:startActivity(new Intent(MainActivity.this, SettingActivity.class));break;case R.id.map_xj_tv:Intent intentTaskXJList = new Intent(MainActivity.this, TaskListActivity.class);intentTaskXJList.putExtra(MConstant.taskList, MConstant.xjTask);startActivity(intentTaskXJList);break;case R.id.map_xq_tv:Intent intentTaskXQList = new Intent(MainActivity.this, TaskListActivity.class);intentTaskXQList.putExtra(MConstant.taskList, MConstant.xqTask);startActivity(intentTaskXQList);break;case R.id.layer_change:     //切换图层需要加载地图，不让用户切换的太快，防止暴力点击if (!MyUtils.isNetWorkConnected(this)) {new CenterHintToast(MainActivity.this, "你当前处于离线状态，不能切换图层");return;}if (System.currentTimeMillis() - clickTime > 1000) {clickTime = System.currentTimeMillis();//计算中心点int measuredWidth = mMapView.getMeasuredWidth();int measuredHeight = mMapView.getMeasuredHeight();android.graphics.Point point = new android.graphics.Point(measuredWidth / 2, measuredHeight / 2);Point centerDot = mMapView.screenToLocation(point);double mapScale = mMapView.getMapScale();double rotation = mMapView.getMapRotation();//重新赋值-loadBasemap方法中使用if (centerDot != null){center = CoordinateFormatter.toLatitudeLongitude(centerDot, CoordinateFormatter.LatitudeLongitudeFormat.DECIMAL_DEGREES, 4);}CurrentScale = mapScale;//我们要切换底图时候，仅需要给ArcGISMap类重新赋值一个底图即可。isStreetMap = !isStreetMap;if (isStreetMap) {String streetUrl = instance.getMapStreetURL();loadBasemap(streetUrl);} else {String satelliteUrl = instance.getMapSatelliteURL();loadBasemap(satelliteUrl);}mMapView.setViewpointRotationAsync(rotation);}break;case R.id.map_location:if (isOffline) return;hasCurrentLocation();break;case R.id.scale_max:  // + 运算changeScale(MAX);break;case R.id.scale_min: // - 运算changeScale(MIN);break;}}//改变地图缩放比例--按图层private void changeScale(String type) {TileInfoBean bean = instance.getTileInfoBean();if (bean == null) {new CenterHintToast(MainActivity.this, "获取缩放比例失败");return;}List<TileInfoBean.LodsBean> lods = bean.getLods();if (lods == null || lods.size() <= 0) return;double mapScale = mMapView.getMapScale();double fastScale = lods.get(0).getScale();double lastScale = lods.get(lods.size() - 1).getScale();if (mapScale>=fastScale&&MIN.equals(type))return;if (mapScale<=lastScale&&MAX.equals(type))return;for (int i = 0; i < lods.size() - 1; i++) {if (MAX.equals(type)) {  // + 运算（放大地图、显示区域变小）if (mapScale <= lods.get(i).getScale() && mapScale > lods.get(i+1).getScale()) {CurrentScale = lods.get(i+1).getScale();}} else if (MIN.equals(type)) {  // - 运算（缩小地图、显示区域变大）if (mapScale < lods.get(i).getScale() && mapScale >= lods.get(i + 1).getScale()) {CurrentScale = lods.get(i).getScale();}}}mMapView.setViewpointScaleAsync(CurrentScale);}//获取定位的权限private void hasCurrentLocation() {locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);//获取可用的位置提供器List<String> allProviders = locationManager.getAllProviders();if (allProviders.contains(LocationManager.GPS_PROVIDER)) {provider = LocationManager.GPS_PROVIDER;} else if (allProviders.contains(LocationManager.NETWORK_PROVIDER)) {provider = LocationManager.NETWORK_PROVIDER;new CenterHintToast(MainActivity.this, "为了定位的准确性\n请开启GPS定位服务");} else {new CenterHintToast(MainActivity.this, "请在 设置 中开启定位服务");return;}//权限检测String[] permissionStr = {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED&& ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {ActivityCompat.requestPermissions(MainActivity.this, permissionStr, 111);} else {showLocation();}}//定位到当前点@SuppressLint("MissingPermission")private void showLocation() {mLocation = locationManager.getLastKnownLocation(provider);locationManager.requestLocationUpdates(provider, 1000, 0, new LocationListener() {@Overridepublic void onLocationChanged(Location location) {mLocation = location;if (mLocation != null) {drawLocationImg();center = mLocation.getLatitude() + " " + mLocation.getLongitude();}}@Overridepublic void onStatusChanged(String provider, int status, Bundle extras) {}@Overridepublic void onProviderEnabled(String provider) {}@Overridepublic void onProviderDisabled(String provider) {new CenterHintToast(MainActivity.this, "请在 设置 中开启GPS定位服务");}});if (mLocation != null) {drawLocationImg();center = mLocation.getLatitude() + " " + mLocation.getLongitude();}//设置地图中心点Point point = CoordinateFormatter.fromLatitudeLongitude(center, SpatialReferences.getWgs84());mMapView.setViewpointCenterAsync(point, CurrentScale);}//绘制当前点的图标private void drawLocationImg() {String pointStr = mLocation.getLatitude() + " " + mLocation.getLongitude();Point point = CoordinateFormatter.fromLatitudeLongitude(pointStr, SpatialReferences.getWgs84());Graphic graphic = new Graphic(point);if (overlayDevice == null) {     //显示自己当前位置overlayDevice = new GraphicsOverlay();BitmapDrawable drawable = (BitmapDrawable) getResources().getDrawable(R.drawable.device_location);final PictureMarkerSymbol pointSymbol = new PictureMarkerSymbol(drawable);SimpleRenderer pointRenderer = new SimpleRenderer(pointSymbol);overlayDevice.setRenderer(pointRenderer);overlayDevice.getGraphics().add(graphic);mMapView.getGraphicsOverlays().add(overlayDevice);} else {overlayDevice.getGraphics().remove(0);overlayDevice.getGraphics().add(graphic);}}@Overridepublic void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {super.onRequestPermissionsResult(requestCode, permissions, grantResults);switch (requestCode) {case 111:if (grantResults.length > 0) {   //有权限被拒绝List<String> deniedPermissions = new ArrayList<>();for (int i = 0; i < grantResults.length; i++) {int grantResult = grantResults[i];String permission = permissions[i];if (grantResult != PackageManager.PERMISSION_GRANTED) {deniedPermissions.add(permission);}}if (deniedPermissions.isEmpty()) {   //全部授权成功showLocation();} else {new CenterHintToast(MainActivity.this, "请在 设置-应用管理 中开启此应用的定位权限。");}}break;default:break;}}//加载地图，提成方法，方便切换底图,异步执行private void loadBasemap(final String url) {/*     //如果用户处于离线状态，不管之前的地图状态直接加载离线包if (isOffline) {String filename = MyUtils.Save_Path + "/" + MyUtils.File_name;if (!(new File(filename)).exists()) return;//防止闪退DBTiledLayer tiledLayer = DBTiledLayer.init(filename);tiledLayer.setMinScale(MinScale);  //控制缩小，数值越大，缩小倍数越大，看的范围越广tiledLayer.setMaxScale(MaxScale);   //控制放大，数值越小，放大倍数越高Basemap basemap = new Basemap(tiledLayer);mArcGISMap = new ArcGISMap(basemap);}*/new Thread(new Runnable() {@Overridepublic void run() {new ReturnJson(url,mHandler);    //存地图缩放比例}}).start();}//--获取地图配置信息成功@SuppressLint("HandlerLeak")private Handler mHandler = new Handler(){@Overridepublic void handleMessage(Message msg) {switch (msg.what){case 13:Bundle data = msg.getData();String url = data.getString("url");MinScale = data.getDouble("fastScale");MaxScale = data.getDouble("lastScale");ArcGISTiledLayer tiledLayer = new ArcGISTiledLayer(url);tiledLayer.setMinScale(MinScale);  //控制缩小，数值越大，缩小倍数越大，看的范围越广tiledLayer.setMaxScale(MaxScale);   //控制放大，数值越小，放大倍数越高Basemap basemap = new Basemap(tiledLayer);mArcGISMap = new ArcGISMap(basemap);mMapView.setMap(mArcGISMap);Point point = CoordinateFormatter.fromLatitudeLongitude(center, SpatialReferences.getWgs84());mMapView.setViewpointCenterAsync(point, CurrentScale);break;}}};private void initMap() {//加载地图底图if (isStreetMap) {String streetUrl = instance.getMapStreetURL();loadBasemap(streetUrl);} else {String satelliteUrl = instance.getMapSatelliteURL();loadBasemap(satelliteUrl);}//添加点击事件MapViewTouchListener mMapViewTouchListener = new MapViewTouchListener(this, mMapView);mMapView.setOnTouchListener(mMapViewTouchListener);}//点击地图覆盖物class MapViewTouchListener extends DefaultMapViewOnTouchListener {public MapViewTouchListener(Context context, MapView mapView) {super(context, mapView);}@Overridepublic boolean onSingleTapConfirmed(MotionEvent e) {// get the screen point where user tappedandroid.graphics.Point screenPoint = new android.graphics.Point((int) e.getX(), (int) e.getY());final ListenableFuture<List<IdentifyGraphicsOverlayResult>> overlaysAsync = mMapView.identifyGraphicsOverlaysAsync(screenPoint, 20.0, false, 2);overlaysAsync.addDoneListener(new Runnable() {@Overridepublic void run() {try {List<IdentifyGraphicsOverlayResult> overlayResultList = overlaysAsync.get();if (!overlayResultList.isEmpty() && overlayResultList.size() >= 0) {//如果只取第一个点到的，就不用for循环了，直接get(0)；如果需要取所有点击到的覆盖物，就可以用for循环int size = overlayResultList.size();List<Graphic> graphics = overlayResultList.get(0).getGraphics();if (!graphics.isEmpty() && graphics.size() >= 0) {Graphic graphic = graphics.get(0);//取点击的第一个Map<String, Object> map = graphic.getAttributes();int taskPointId = (int) map.get("taskPointId");showPopupWindow(taskPointId);}}} catch (InterruptedException | ExecutionException ie) {ie.printStackTrace();}}});return super.onSingleTapConfirmed(e);}}public void showPopupWindow(final int taskPointId) {View view = LayoutInflater.from(MainActivity.this).inflate(R.layout.map_task_info_pop, null);final PopupWindow popupWindow = new PopupWindow(view, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, true);popupWindow.setTouchable(true);popupWindow.setAnimationStyle(R.style.popup_style);popupWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.shape_main_map_pop));popupWindow.showAsDropDown(headerTitle);TextView taskPointName = (TextView) view.findViewById(R.id.taskPoint_name);TextView taskPointLocation = (TextView) view.findViewById(R.id.taskPoint_location);TextView taskPointLeft = (TextView) view.findViewById(R.id.taskPoint_left);TextView taskPointRight = (TextView) view.findViewById(R.id.taskPoint_right);//取任务点的相关信息List<TaskList> taskLists = DataSupport.where("user_id =? and task_status =?",userId + "", MConstant.Task_Current + "").find(TaskList.class);if (taskLists != null && taskLists.size() > 0) {TaskList list = taskLists.get(0);taskType = list.getTask_type();taskId = list.getTask_id();taskName = list.getTask_name();List<TaskPoint> taskPoints = DataSupport.where("user_id =? and task_id =? and task_type =? and task_point_id =?",userId + "", taskId + "", taskType + "", taskPointId + "").find(TaskPoint.class);if (taskPoints != null && taskPoints.size() > 0) {TaskPoint point = taskPoints.get(0);objectTypeId = point.getObject_type_id();List<ObjectAttribute> attributes = DataSupport.where("user_id=? and task_type=? and task_id=? and task_point_id=?",userId, taskType + "", taskId + "", taskPointId + "").find(ObjectAttribute.class);if (attributes != null && attributes.size() > 0) {ObjectAttribute attribute = attributes.get(0);String att_info2 = attribute.getAtt_info2();String[] split = att_info2.split(":");String att_info1 = attribute.getAtt_info1();String[] split1 = att_info1.split(":");if (split.length > 1 && split1.length > 1) {taskPointName.setText(split[1] + ": " + split1[1]);}taskPointLocation.setText(attribute.getAtt_info11());}}}taskPointLeft.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//任务详情Intent intent = new Intent(MainActivity.this, TaskInfoActivity.class);intent.putExtra("taskName", taskName);intent.putExtra("taskType", taskType);intent.putExtra("taskId", taskId);startActivity(intent);}});taskPointRight.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//缺陷录入Intent intent = new Intent(MainActivity.this, TaskRecordActivity.class);intent.putExtra("objTypeId", objectTypeId);intent.putExtra("taskPointId", taskPointId);intent.putExtra("taskType", taskType);intent.putExtra("taskId", taskId);intent.putExtra("taskStatus", MConstant.Task_Current);startActivity(intent);}});}//添加点线覆盖物private void addGraphicsOverlay() {if (mLocation != null) drawLocationImg();//-----------画点-------------pointGraphicOverlay = new GraphicsOverlay();BitmapDrawable drawable0 = (BitmapDrawable) getResources().getDrawable(R.drawable.dot_map);final PictureMarkerSymbol pointSymbol0 = new PictureMarkerSymbol(drawable0);SimpleRenderer pointRenderer = new SimpleRenderer(pointSymbol0);pointGraphicOverlay.setRenderer(pointRenderer);//--------------画线---------------lineGraphicOverlay = new GraphicsOverlay();SimpleLineSymbol lineSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, R.color.colorPrimary, 3);SimpleRenderer lineRenderer = new SimpleRenderer(lineSymbol);lineGraphicOverlay.setRenderer(lineRenderer);//添加需要绘制的数据if (mapTaskPoints == null || mapTaskPoints.size() <= 0) return;for (MapTaskPointBean mapTaskPoint : mapTaskPoints) {boolean dot = mapTaskPoint.isDot();if (dot) {//画点Map<String, Object> map = new HashMap<>();map.put("taskPointId", mapTaskPoint.getTaskPointId());Point point = mapTaskPoint.getPoint();Graphic graphic = new Graphic(point, map, pointSymbol0);pointGraphicOverlay.getGraphics().add(graphic);} else {//画线PointCollection pointCollection = new PointCollection(SpatialReferences.getWgs84());Map<String, Object> map = new HashMap<>();map.put("taskPointId", mapTaskPoint.getTaskPointId());List<Point> line = mapTaskPoint.getLine();for (Point point : line) {pointCollection.add(point);}Polyline polyline = new Polyline(pointCollection);Graphic graphic = new Graphic(polyline, map, lineSymbol);lineGraphicOverlay.getGraphics().add(graphic);}}// add graphics overlay to the MapViewmMapView.getGraphicsOverlays().add(lineGraphicOverlay);mMapView.getGraphicsOverlays().add(pointGraphicOverlay);//设置地图中心点Point point = CoordinateFormatter.fromLatitudeLongitude(center, SpatialReferences.getWgs84());mMapView.setViewpointCenterAsync(point, CurrentScale);//------------------闪烁---------------------handler.postDelayed(runnable, 1000);}private boolean isShow = true;private int recLen = 4;//设置闪烁次数Handler handler = new Handler();Runnable runnable = new Runnable() {@Overridepublic void run() {isShow = !isShow;recLen--;handler.postDelayed(runnable, 1000);//显示或消失if (lineGraphicOverlay != null) lineGraphicOverlay.setVisible(isShow);if (pointGraphicOverlay != null) pointGraphicOverlay.setVisible(isShow);if (recLen <= 0) {recLen = 4;//重置时要和初始值一致Message message = new Message();message.what = 1;handlerStop.sendMessage(message);}}};final Handler handlerStop = new Handler() {public void handleMessage(Message msg) {switch (msg.what) {case 1:handler.removeCallbacks(runnable);if (lineGraphicOverlay != null) lineGraphicOverlay.setVisible(true);if (pointGraphicOverlay != null) pointGraphicOverlay.setVisible(true);break;}super.handleMessage(msg);}};@Overrideprotected void onPause() {mMapView.pause();super.onPause();}@Overrideprotected void onDestroy() {super.onDestroy();handler.removeCallbacks(runnable);}/*** 连续点击两次退出应用，时间间隔不超过5s*/private long exitTime = 0;@Overridepublic void onBackPressed() {if (System.currentTimeMillis() - exitTime > 2000) {Toast.makeText(this, "再按一次退出程序", Toast.LENGTH_SHORT).show();exitTime = System.currentTimeMillis();} else {instance.setMapType(isStreetMap);ActivityCollector.finishAll();}}}

8、补充

关于GIS地图在android上的使用也可以看这个作者的系列博文，安卓智能地图开发与实施系列，作者：大虾卢
[ArcGIS for Android Runtime 100基础操作](https://blog.csdn.net/bit_kaki/article/category/6509445）