close method
Closes a GeoPackage.
Before you close a GeoPackage you should remove all references to the data it contains, such as removing the feature layer from a map and releasing the GeoPackageFeatureTable. Attempts to access a GeoPackage after it is closed will fail, resulting in an error.
After closing a GeoPackage, the underlying files it references can be deleted or moved.
Implementation
void close() {
_withThrowingErrorHandler((errorHandler) {
runtimecore.RT_GeoPackage_close(_handle, errorHandler);
});
}