Arcgis Runtime for andriod 100 加载TPK

private void LoadTPK() {

    YLPub.pContext = this;
    String path = YLPub.getMapData() + "/gismap/map.tpk";
    mMapView = (MapView) findViewById(R.id.mapView);
    try {
        //String theOfflineTiledLayers = "/sdcard/Hymn/basemap/ImageBasemap.tpk";

        TileCache mainTileCache = new TileCache(path);
        ArcGISTiledLayer mainArcGISTiledLayer = new ArcGISTiledLayer(mainTileCache);
        Basemap mainBasemap = new Basemap(mainArcGISTiledLayer);
        pMap = new ArcGISMap(mainBasemap);
        mMapView.setMap(pMap);

    } catch (Exception e) {
        YLPub.ShowMessage("文件：" + path + "不存在");
    }

}