ImageProcess/native_vision/lib/native/dynamic_lib_singleton.dart

import 'dart:ffi';
import 'dart:io';

class DynamicLibSingleton {
  static final DynamicLibSingleton _singleton = DynamicLibSingleton._internal();
  late DynamicLibrary dl;

  DynamicLibSingleton._internal() {
    dl = Platform.isAndroid
        ? DynamicLibrary.open('libnative_add.so')
        : DynamicLibrary.process();
  }

  factory DynamicLibSingleton() {
    return _singleton;
  }
}