Arcgis For Android 加载地图以及叠加天地图服务
大家既然能看到这篇Arcgis博客说明已经对它有一定了解和认知，这边我就不做过多的介绍。咱们直接上手
！！！
1.环境配置
在项目下build.gradle的repositories目录内添加
maven {
url 'https://esri.bintray.com/arcgis'
}
在module的build.gradle的android目录内添加
packagingOptions {
exclude 'META-INF/LGPL2.1'
exclude 'META-INF/LICENSE'
exclude 'META-INF/NOTICE'
}
as3.0以上
implementation 'com.esri.arcgis.android:arcgis-android:10.2.9'；
as3.0以下再则将implementation替换compile即可；
最后还要在AndroidManifest.xml添加权限以及配置文件。
2.加载配置
- 在xml引入布局
- 进行一些初始化
MapView esrimapView=findViewById(R.id.esri_mapView);
//网络图层地址
String MapUrl="https://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer";
//图层的创建
ArcGISTiledMapServiceLayer mapServiceLayer = new ArcGISTiledMapServiceLayer(MapUrl);
//图层的添加
esrimapView.addLayer(mapServiceLayer);
or下面这是本地的加载 这边就举个例子吧 tpk文件
//同样的我们需要先拿到这个文件的地址
String path=Environment.getExternalStorageDirectory().getAbsolutePath() + "具体的文件地址和名字名字";
例如/Pictures/tpk_20190116.tpk
// 离线地图调用
ArcGISLocalTiledLayer arcGISTiledMapServiceLayer = new ArcGISLocalTiledLayer(path);
esriMapView.addLayer(arcGISTiledMapServiceLayer);
当然这个界面不是很美观，下面进行一些简单的优化。
- 去除背后的网格
esrimapView.setMapBackground(0xffffff, 0xffffff, 1.0f, 100.0f);
- 去除水印(Licensed for Developer User Only)
String clientID = "273DobVpQjOHcrZe";
ArcGISRuntime.setClientId(clientID);
在之前的xml再添加下面来设置显示范围
http://www.gpsspg.com/maps.htm 通过在线地图经纬度查询，显示初始化范围以及缩放比例
mapoptions.MapType="topo"
mapoptions.ZoomLevel="4"
mapoptions.center="30.088774362326117,106.11987703125003"
添加点线面
- 点
采用墨卡托坐标
Point point = new Point(x,y);
//初始化线条的颜色以及大小样式
Graphic graphic = new Graphic(point, new SimpleMarkerSymbol(Color.RED, 15, SimpleMarkerSymbol.STYLE.CIRCLE));
//GraphicsLayer是图形图层,可以自定义图形添加到地图上。
GraphicsLayer gLayerPos = new GraphicsLayer();
//添加图形
gLayerPos.addGraphic(graphic);
esrimapView.addLayer(gLayerPos);
- 线
采用墨卡托坐标，两点确定一条直线。
//存放坐标
List pointList=new ArrayList<>();
//起点
Point pointstart = new Point(x,y);
//末点
Point pointend= new Point(x,y);
//添加集合去
pointList.add(pointstart);
pointList.add(pointend);
Polyline polyline = new Polyline();
//简单的判断逻辑
if (pointList.size() > 1) {
for (int i = 0; i < pointList.size(); i++) {
if (i == 0) {
polyline.startPath(pointList.get(i));
} else {
polyline.lineTo(pointList.get(i));
}
}
}
Graphic graphic = new Graphic(polyline, new SimpleLineSymbol(Color.BLUE, 3, SimpleLineSymbol.STYLE.SOLID));
gLayerPos.addGraphic(graphic);
esrimapView.addLayer(gLayerPos);
- 面
采用墨卡托坐标,三点就可以定面
//与线差不多一样的逻辑数据无非这里要添加3个以上
List pointList=new ArrayList<>()；
//起点
Point pointstart = new Point(x,y);
//中间
Point pointmid= new Point(x,y);
//末点
Point pointend= new Point(x,y);
pointList.add(pointstart);
pointList.add(pointmid);
pointList.add(pointend);
Polygon polygon = new Polygon();
for (int i = 0; i < pointList.size(); i++) {
if (i == 0) {
polygon.startPath(pointList.get(i)); //起点
} else {
polygon.lineTo(pointList.get(i));
}
}
// 外线颜色
SimpleLineSymbol lineSymbol = new SimpleLineSymbol(Color.RED, 3,SimpleLineSymbol.STYLE.SOLID);
// 内颜色
SimpleFillSymbol fillSymbol = new SimpleFillSymbol(Color.YELLOW);
illSymbol.setOutline(lineSymbol);
- 图片
采用墨卡托坐标
PictureMarkerSymbollocationSymbol locationSymbol= new PictureMarkerSymbol(Drawable drawable);
Point point = new Point(x, y);
Graphic graphicimage = new Graphic(point, locationSymbol);
gLayerPos.addGraphic(graphicimage);esrimapView.addLayer(gLayerPos);
点线面距离面积周长计算
https://blog.csdn.net/qq_36699930/article/details/80005950 可参考这篇博客
天地图服务
我这个项目采用的是墨卡托坐标3857 如果需要添加天地图服务你的底图文件一定得和坐标系是一致的；不然是不会加载出，来对于第一次上手项目的来说，我认为这是个坑。
常量类
public enum TianDiTuTiledMapServiceType {
/**
* 天地图矢量
* */
VEC_C,
/**
* 天地图影像
* */
IMG_C,
/**
* 天地图矢量标注
* */
CVA_C,
/**
* 天地图影像标注
* */
CIA_C
}
地图地址
import java.util.Random;
public class TDTUrl {
private TianDiTuTiledMapServiceType _tiandituMapServiceType;
private int _level;
private int _col;
private int _row;
public TDTUrl(int level, int col, int row, TianDiTuTiledMapServiceType tiandituMapServiceType) {
this._level = level;
this._col = col;
this._row = row;
this._tiandituMapServiceType = tiandituMapServiceType;
}
public String getUrl() {
StringBuilder url1 = new StringBuilder("http://t");
Random random = new Random();
int subdomain = (random.nextInt(6) + 1);
url1.append(subdomain);
switch (this._tiandituMapServiceType) {
case VEC_C://矢量
url1.append(".tianditu.com/DataServer?T=").append("vec_w").append("&X=").append(this._col).append("&Y=")
.append(this._row).append("&L=").append(this._level)
.append("&tk=2ce94f67e58faa24beb7cb8a09780552");
break;
case CVA_C://矢量注记
url1.append(".tianditu.com/DataServer?T=").append("cva_w").append("&X=").append(this._col).append("&Y=")
.append(this._row).append("&L=").append(this._level)
.append("&tk=2ce94f67e58faa24beb7cb8a09780552");
break;
case CIA_C://影像注记
url1.append(".tianditu.com/DataServer?T=").append("cia_w").append("&X=").append(this._col).append("&Y=")
.append(this._row).append("&L=").append(this._level)
.append("&tk=2ce94f67e58faa24beb7cb8a09780552");
break;
case IMG_C://影像
url1.append(".tianditu.com/DataServer?T=").append("img_w").append("&X=").append(this._col).append("&Y=")
.append(this._row).append("&L=").append(this._level)
.append("&tk=2ce94f67e58faa24beb7cb8a09780552");
break;
default:
break;
}
//System.out.println(url1.toString());
return url1.toString();
}
}
重写TiledServiceLayer
import android.util.Log;
import com.esri.android.map.TiledServiceLayer;
import com.esri.core.geometry.Envelope;
import com.esri.core.geometry.Point;
import com.esri.core.geometry.SpatialReference;
import com.esri.core.io.UserCredentials;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.RejectedExecutionException;
public class TianDiTuTiledMapServiceLayer extends TiledServiceLayer {
private TianDiTuTiledMapServiceType _mapType;
private TileInfo tiandituTileInfo;
public TianDiTuTiledMapServiceLayer() {
this(null, null,true);
}
public TianDiTuTiledMapServiceLayer(TianDiTuTiledMapServiceType mapType){
this(mapType, null,true);
}
public TianDiTuTiledMapServiceLayer(TianDiTuTiledMapServiceType mapType,UserCredentials usercredentials){
this(mapType, usercredentials, true);
}
public TianDiTuTiledMapServiceLayer(TianDiTuTiledMapServiceType mapType, UserCredentials usercredentials, boolean flag){
super("");
this._mapType=mapType;
setCredentials(usercredentials);
if(flag)
try
{
getServiceExecutor().submit(new Runnable() {
public final void run()
{
a.initLayer();
}
final TianDiTuTiledMapServiceLayer a;
{
a = TianDiTuTiledMapServiceLayer.this;
//super();
}
});
return;
}
catch(RejectedExecutionException _ex) { }
}
public TianDiTuTiledMapServiceType getMapType(){
return this._mapType;
}
protected void initLayer(){
if (getID() == 0L) {
nativeHandle = create();
changeStatus(com.esri.android.map.event.OnStatusChangedListener.STATUS
.fromInt(-1000));
}else {
this.buildTileInfo();
this.setFullExtent(new Envelope(-22041257.773878,
-20851350.0432886, 22041257.773878, 20851350.0432886));
this.setDefaultSpatialReference(SpatialReference.create(3857));
super.initLayer();
}
}
public void refresh()
{
try
{
getServiceExecutor().submit(new Runnable() {
public final void run()
{
if(a.isInitialized())
try
{
a.b();
a.clearTiles();
return;
}
catch(Exception exception)
{
Log.e("ArcGIS", "Re-initialization of the layer failed.", exception);
}
}
final TianDiTuTiledMapServiceLayer a;
{
a = TianDiTuTiledMapServiceLayer.this;
//super();
}
});
return;
}
catch(RejectedExecutionException _ex)
{
return;
}
}
final void b()
throws Exception
{
}
@Override
protected byte[] getTile(int level, int col, int row) throws Exception {
/**
*
* */
byte[] result = null;
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
URL sjwurl = new URL(this.getTianDiMapUrl(level, col, row));
HttpURLConnection httpUrl = null;
BufferedInputStream bis = null;
byte[] buf = new byte[1024];
httpUrl = (HttpURLConnection) sjwurl.openConnection();
httpUrl.connect();
bis = new BufferedInputStream(httpUrl.getInputStream());
while (true) {
int bytes_read = bis.read(buf);
if (bytes_read > 0) {
bos.write(buf, 0, bytes_read);
} else {
break;
}
};
bis.close();
httpUrl.disconnect();
result = bos.toByteArray();
} catch (Exception ex) {
ex.printStackTrace();
}
return result;
}
@Override
public TileInfo getTileInfo(){
return this.tiandituTileInfo;
}
/**
*
* */
private String getTianDiMapUrl(int level, int col, int row){
String url=new TDTUrl(level,col,row,this._mapType).getUrl();
return url;
}
private void buildTileInfo()
{
Point origin = new Point(-20037508.342787, 20037508.342787);
double[] scales = new double[] {591657527.591555,
295828763.79577702, 147914381.89788899, 73957190.948944002,
36978595.474472001, 18489297.737236001, 9244648.8686180003,
4622324.4343090001, 2311162.217155, 1155581.108577, 577790.554289,
288895.277144, 144447.638572, 72223.819286, 36111.909643,
18055.954822, 9027.9774109999998, 4513.9887049999998, 2256.994353,
1128.4971760000001};
double[] resolutions = new double[] {156543.03392800014,
78271.516963999937, 39135.758482000092, 19567.879240999919,
9783.9396204999593, 4891.9698102499797, 2445.9849051249898,
1222.9924525624949, 611.49622628138, 305.748113140558,
152.874056570411, 76.4370282850732, 38.2185141425366,
19.1092570712683, 9.55462853563415, 4.7773142679493699,
2.3886571339746849, 1.1943285668550503, 0.59716428355981721,
0.29858214164761665 };
int levels=21;
int dpi=96;
int tileWidth=256;
int tileHeight=256;
this.tiandituTileInfo=new com.esri.android.map.TiledServiceLayer.TileInfo(origin, scales, resolutions, scales.length, dpi, tileWidth,tileHeight);
this.setTileInfo(this.tiandituTileInfo);
}
}
/**
* 天地图矢量
* */
TianDiTuTiledMapServiceLayer tianDiTuTiledMapServiceLayer=new TianDiTuTiledMapServiceLayer(TianDiTuTiledMapServiceType.VEC_C);
esriMapView.addLayer(tianDiTuTiledMapServiceLayer,0);
/**
* 天地图矢量标注
* */
TianDiTuTiledMapServiceLayer serviceLayer=new TianDiTuTiledMapServiceLayer(TianDiTuTiledMapServiceType.CVA_C);
esriMapView.addLayer(serviceLayer,1);
完成。