ArcGISGeopackageLayer

对ArcGIS for Android SDK中的Geopackage进行扩展，使其支持WGS84以外的坐标系统

##使用方法：

###1）初始化GeopackageLayer

String geopackagePath="";
String geopackageTableName="";
GeopackageLyaer layer=GeopackageLayer.make(geopackagePath,geopackageTableName);

###2) 添加图层到地图

MapView map=(MapView)findViewById(R.id.map);
String geopackagePath="";
String geopackageTableName="";
GeopackageLyaer layer=GeopackageLayer.make(geopackagePath,geopackageTableName);
map.addLayer(layer);

###3)添加新要

Geometry shape=new Polygon();
Map<String,Object> attributes=new HashMap<>();
long featureId=layer.createNewFeature(shap,attributes);

###4)修改要素

Geometry shape=new Polygon();
Map<String,Object> attributes=new HashMap<>();
long featureId=23;
layer.updateFeature(featureId,shape,attributes);

###5)删除要素

long featureId=34;
long[] featureIdArray=new long[]{23,45,76,98};
layer.deleteFeature(featureId);
layer.deleteFeatures(featureIdArray);

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