Unity C# Basic Review 31 - Reflection (P461)

1. The concept of reflection

Use the type class to detect fields, structures, properties, methods, etc. in a class

public class Test : MonoBehaviour
{
    private void Start()
    {
        TestType();
    }
    public static void TestType() 
    {
        //typeof
        Type type = typeof(String);
        //侦测类的构造
        foreach (var item in type.GetConstructors())
        {
            Debug.Log(item);
        }
        //侦测属性
        foreach (var item in type.GetProperties())
        {
            Debug.Log(item);
        }
        //侦测方法
        foreach (var item in type.GetMethods())
        {
            Debug.Log(item);
        }
    }
}

2. Reflective core type

1. obj.GetType(): Get the Type object corresponding to the prototype type

public class Test : MonoBehaviour
{
    private void Start()
    {
        TestType("123");
    }
    public static void TestType(System.Object obj) 
    {
        //obj.GetType():获取原型类型对应的Type对象
        Type type = obj.GetType();
        //侦测类的构造
        foreach (var item in type.GetConstructors())
        {
            Debug.Log(item);
        }
        //侦测属性
        foreach (var item in type.GetProperties())
        {
            Debug.Log(item);
        }
        //侦测方法
        foreach (var item in type.GetMethods())
        {
            Debug.Log(item);
        }
    }
}

2. (i) Get Type through class name

      (ii) Pass a full class name

public class Test : MonoBehaviour
{
    private void Start()
    {
        TestType("System.Object");
    }
    //传过一个类全称
    public static void TestType(string className) 
    {
        //通过类名称获取Type
        Type type = Type.GetType(className);

        //侦测类的构造
        foreach (var item in type.GetConstructors())
        {
            Debug.Log(item);
        }
        //侦测属性
        foreach (var item in type.GetProperties())
        {
            Debug.Log(item);
        }
        //侦测方法
        foreach (var item in type.GetMethods())
        {
            Debug.Log(item);
        }
    }
}