android 接入全球天地图显示地方底图

前期准备：

1.android studio 开发工具

2.jdk1.7以上

3.arcgis for android 10.2.9

4.国家天地图地址：http://t0.tianditu.gov.cn

5.申请天地图key值

不说了，直接上代码天地图代码块：

public class GlobalTDTLayer extends TiledServiceLayer {
    /**
     * 全球天地图地址 例：http://t0.tianditu.gov.cn/vec_c/wmts?LAYER=vec
     *

     * 注：含区别字段，layer名称
     */
    private String wmtsUrl;
    /**
     * 因为是全球天地图需要提供定位到地方天地图显示范围
     */
    private Envelope envelope;
    /**
     * true   使用运维配置范围扩大2个单位
     * false  开发人员获取范围后写入程序中
     * */
    private boolean isDefault=true;

    public GlobalTDTLayer(String wmtsUrl, Envelope envelope) {
        super(true);
        this.wmtsUrl = wmtsUrl;
        if(isDefault){
            this.envelope = new Envelope(envelope.getXMin()-2, envelope.getYMin()-2, envelope.getXMax()+2, envelope.getYMax()+2);
        }else{

//此处为直接固定的地方底图显示范围
            this.envelope=new Envelope(113.71607377092981, 38.0481517905612, 121.45977468312661, 44.74059208753765);
        }
        urlAdjust();

        init();
    }

//处理天地图请求栅格图的拼接地址

    private void urlAdjust() {
        String layerName = wmtsUrl.substring(wmtsUrl.indexOf("m/") + 2, wmtsUrl.indexOf("_"));
        wmtsUrl = wmtsUrl + "?Layer=" + layerName;
    }

    private void init() {
        try {
            getServiceExecutor().submit(new Runnable() {
                @Override
                public void run() {
                    GlobalTDTLayer.this.initLayer();
                }
            });
        } catch (RejectedExecutionException rejectedexecutionexception) {
            Log.e("ArcGIS", "initialization of the layer failed.", rejectedexecutionexception);
        }
    }

    @Override
    public byte[] getTile(int level, int col, int row) throws Exception {
        Map map = null;
        String resourceURL = null;
        resourceURL = wmtsUrl + "&tk="你用开发者账号申请的key值"&SERVICE=WMTS&VERSION=1.0.0&REQUEST=GetTile&STYLE=default&FORMAT=tiles&TILEMATRIXSET=c&TILEMATRIX=" + (level + 1) + "&TILEROW=" + row + "&TILECOL=" + col;
        return com.esri.core.internal.io.handler.a.a(resourceURL, map);
    }

    @Override
    protected void initLayer() {
        if (getID() == 0L) {
            nativeHandle = create();
            changeStatus(com.esri.android.map.event.OnStatusChangedListener.STATUS.fromInt(-1000));
        } else {
            SpatialReference sp = SpatialReference.create(srid);

            Point point = new Point(-180, 90);

            TileInfo tileInfo = new TileInfo(point,
                    SCALES, RESOLUTIONS,
                    SCALES.length, dpi_wmts,
                    tileWidth_wmts, tileHeight_wmts);

            this.setDefaultSpatialReference(sp);
            this.setFullExtent(envelope);
            this.setTileInfo(tileInfo);
            super.initLayer();
        }
    }

    private final int srid = 4490;//3857//4548;
    public final int tileWidth_wmts = 256;
    public final int tileHeight_wmts = 256;
    public final int dpi_wmts = 96;

    public static final double[] SCALES = {
            295497593.0588, 147748796.52937502, 73874398.264687508, 36937199.132343754,
            18468599.566171877, 9234299.7830859385, 4617149.8915429693,
            2308574.9457714846, 1154287.4728857423, 577143.73644287116,
            288571.86822143558, 144285.93411071779, 72142.967055358895,
            36071.483527679447, 18035.741763839724, 9017.8708819198619,
            4508.9354409599309, 2254.4677204799655

    };
    public static final double[] RESOLUTIONS = {
            0.703125000000119, 0.3515625, 0.17578125, 0.087890625,
            0.0439453125, 0.02197265625, 0.010986328125,
            0.0054931640625, 0.00274658203125, 0.001373291015625
            , 0.0006866455078125, 0.00034332275390625,
            0.000171661376953125, 8.58306884765625E-05, 4.291534423828125E-05,
            2.1457672119140625E-05, 1.0728836059570313E-05, 5.3644180297851563E-06
    };
}

key值只能自己去申请一个哈。