I’ve been experimenting with creating custom Inspectors and Editor Windows in Unity lately and one of the features I’ve found is the GenericMenu class. This allows you to create Drop Down and Context Menu’s in Unity.

To draw a Context Menu with two options (Foo and Bar) which will print themselves to the Unity Console when clicked the code might look something like this:

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// Create a new Generic Menu object
var menu = new GenericMenu();

// Create a reusable function for the menu options
var function = new GenericMenu.MenuFunction2((name) ⇒ {
    Debug.Log($"{name}");
});

// Create two new menu options to print foo and bar
menu.AddItem(new GUIContent("Print Foo"), false, function, "Foo");
menu.AddItem(new GUIContent("Print Bar"), false, function, "Bar");

// Display the context menu
menu.ShowAsContext();

The documentation for GenericMenu is also on Unity’s scripting references with additional examples: https://docs.unity3d.com/ScriptReference/GenericMenu.html

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