在高德地图 Android SDK上添加GeoServer发布的WMS图层

因为项目需要，要在高德地图上添加自己的地图服务器发布的地图，想到了通过WMS来添加。在网上找到了两篇相关的博文，用他们的代码都无法实现，后来感觉这两个人根本就没有实际去做，代码里有同样的逻辑性错误。自己修改了一下，实现效果如下图所示：

首先定义实体类：

public class Gps {
    private double wgLat;
    private double wgLon;

    public Gps(double wgLat, double wgLon) {
        setWgLat(wgLat);
        setWgLon(wgLon);
    }

    public double getWgLat() {
        return wgLat;
    }

    public void setWgLat(double wgLat) {
        this.wgLat = wgLat;
    }

    public double getWgLon() {
        return wgLon;
    }

    public void setWgLon(double wgLon) {
        this.wgLon = wgLon;
    }

    @Override
    public String toString() {
        return wgLat + "," + wgLon;
    }
}

然后扩展高德地图的UrlTileProvider

import android.content.Context;
import com.amap.api.maps.model.UrlTileProvider;

import java.net.MalformedURLException;
import java.net.URL;

public class HeritageScopeTileProvider extends UrlTileProvider {

    private String mRootUrl;
    //默认瓦片大小
    private static int titleSize = 256;//a=6378137±2（m）
    //基本参数
    private final double initialResolution = 156543.03392804062;//2*Math.PI*6378137/titleSize;
    private final double originShift = 20037508.342789244;//2*Math.PI*6378137/2.0; 周长的一半

    private final double HALF_PI = Math.PI / 2.0;
    private final double RAD_PER_DEGREE = Math.PI / 180.0;
    private final double HALF_RAD_PER_DEGREE = Math.PI / 360.0;
    private final double METER_PER_DEGREE = originShift / 180.0;//一度多少米
    private final double DEGREE_PER_METER = 180.0 / originShift;//一米多少度
    private Context context;


    public HeritageScopeTileProvider(Context context) {
        super(titleSize, titleSize);
        this.context = context;
        //地址写你自己的wms地址
        mRootUrl = "http://192.168.101.50:8080/geoserver/indoor/wms?LAYERS=indoor:F1&FORMAT=image%2Fpng&TRANSPARENT=TRUE&SERVICE=WMS&VERSION=1.1.0&REQUEST=GetMap&STYLES=&SRS=EPSG:4326&BBOX=";
    }


    @Override
    public URL getTileUrl(int x, int y, int level) {

        try {
            String url = mRootUrl + TitleBounds(x, y, level);
            return new URL(url);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }

        return null;
    }


    /**
     * 根据像素、等级算出坐标
     *
     * @param p
     * @param zoom
     * @return
     */
    private double Pixels2Meters(int p, int zoom) {
        return p * Resolution(zoom) - originShift;
    }

    /**
     * 根据瓦片的x/y等级返回瓦片范围
     *
     * @param tx
     * @param ty
     * @param zoom
     * @return
     */
    private String TitleBounds(int tx, int ty, int zoom) {
        double minX = Pixels2Meters(tx * titleSize, zoom);
        double maxY = -Pixels2Meters(ty * titleSize, zoom);
        double maxX = Pixels2Meters((tx + 1) * titleSize, zoom);
        double minY = -Pixels2Meters((ty + 1) * titleSize, zoom);

        //转换成经纬度
        minX = Meters2Lon(minX);
        minY = Meters2Lat(minY);
        maxX = Meters2Lon(maxX);
        maxY = Meters2Lat(maxY);
        //坐标转换工具类构造方法 Gps( WGS-84) 转 为高德地图需要的坐标
        Gps position1 = PositionUtil.gcj_To_Gps84(minY, minX);
        minX = position1.getWgLon();
        minY = position1.getWgLat();
        Gps position2 = PositionUtil.gcj_To_Gps84(maxY, maxX);
        maxX = position2.getWgLon();
        maxY = position2.getWgLat();

        return minX + "," + Double.toString(minY) + "," + Double.toString(maxX) + "," + Double.toString(maxY) + "&WIDTH=256&HEIGHT=256";
    }

    /**
     * 计算分辨率
     *
     * @param zoom
     * @return
     */
    private double Resolution(int zoom) {
        return initialResolution / (Math.pow(2, zoom));
    }

    /**
     * X米转经纬度
     */
    private double Meters2Lon(double mx) {
        double lon = mx * DEGREE_PER_METER;
        return lon;
    }

    /**
     * Y米转经纬度
     */
    private double Meters2Lat(double my) {
        double lat = my * DEGREE_PER_METER;
        lat = 180.0 / Math.PI * (2 * Math.atan(Math.exp(lat * RAD_PER_DEGREE)) - HALF_PI);
        return lat;
    }

    /**
     * X经纬度转米
     */
    private double Lon2Meter(double lon) {
        double mx = lon * METER_PER_DEGREE;
        return mx;
    }

    /**
     * Y经纬度转米
     */
    private double Lat2Meter(double lat) {
        double my = Math.log(Math.tan((90 + lat) * HALF_RAD_PER_DEGREE)) / (RAD_PER_DEGREE);
        my = my * METER_PER_DEGREE;
        return my;
    }
}

其次在页面中引用，如果网速慢的话可能过一会才能看到效果

 HeritageScopeTileProvider tileProvider = new HeritageScopeTileProvider(MainActivity.this);
        aMap.addTileOverlay(new TileOverlayOptions()
                .tileProvider(tileProvider)
                .zIndex(1111)
                .diskCacheDir("/storage/amap/cache").diskCacheEnabled(true)
                .diskCacheSize(100));

转载自：https://blog.csdn.net/GISuuser/article/details/79700571