Anuj's Share IT

If you're using .mm files (C++) in your project, when you include the header files in .mm files header you may get below mentioned error (Even though you have all the right linker flags set): 1. linker failed with exit code 1 2. directory not found Solution: 1. Try adding the file to .mm file directly (not to .h file for .mm) 2. Try adding the file as extern extern "C" { #import "DetectDevice.h" }

When an object of a type depends on an object of another type we say that the types are coupled. This is because change in one can lead to a change in second. This will hamper the extensibility and modification in design. In a more complex system lot of classes interact with each other and this will lead to a very brittle design. Let's take an example:    class Program     {         static void Main(string[] args)         {             List<Employee> employees = new List<Employee>();             EmployeeController employeeController = new EmployeeController();             employees = employeeController.GetAllEmployees();         }     } Program depends on EmployeeController to fetch Employee(s).  Inversion of control Logically Inversion means rearrangement. As we have seen in the previous example that Program is controlling EmployeeController and this control is actually coupling them. Inversion of control is object-oriented practice via which we ca