Dart - Singleton

class SPSettings {

  // ---------- Singleton ---------
  static SPSettings _instance;
  
  SPSettings._internal();

  factory SPSettings() {
    if(_instance == null){
    	_instance = SPSettings._internal();
    }
    
    return _instance;
  }
  //-------------------------------
}

Revision #2
Created 2 March 2021 19:41:02 by Juan Navas
Updated 2 March 2021 19:45:29 by Juan Navas