Recreating the Onclick() event function dropdown menu

game_dev23 · July 31, 2020, 8:56am

Hi,
I’m looking to make something identical to the onclick event dropdown with a list of all the functions attached to a certain gameObject. I’m having trouble actually writing the GUI script for this and displaying a dropdown of all the functions. This is my script.

class test {   
[HideInInspector]
    public List<MethodInfo> methods = new List<MethodInfo>();
    private BindingFlags flag = BindingFlags.Public;

    private void OnEnable()
    {
        var mb = effected.GetComponent<MonoBehaviour>().GetType().GetMethods(flag);
        methods.AddRange(mb);
    }
}

GUI script:

[CustomEditor(typeof(PressableButton))]
public class MethodListDrawer : Editor
{
    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();

        PressableButton scr = (PressableButton)target;

        GUIContent label = new GUIContent("MyArray");
        EditorGUILayout.Popup(scr.selected, scr.methods.ToArray());
    }

Thanks.

fffMalzbier · July 31, 2020, 2:10pm

For your inspiration, here is the for the UnityEventDrawer for reference

github.com

Unity-Technologies/UnityCsReference/blob/master/Editor/Mono/Inspector/UnityEventDrawer.cs

// Unity C# reference source
// Copyright (c) Unity Technologies. For terms of use, see
// https://unity3d.com/legal/licenses/Unity_Reference_Only_License

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using UnityEngine;
using UnityEditor;
using UnityEditor.UIElements;
using UnityEngine.Events;
using Object = UnityEngine.Object;
using UnityEngine.Pool;
using UnityEngine.UIElements;

namespace UnityEditorInternal
{
    [CustomPropertyDrawer(typeof(UnityEventBase), true)]

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game_dev23 · July 31, 2020, 8:04pm

thanks that helped, now I am able to create a dropdown us EditorGUILayout.popup() but now how do I give a call to the function? So in class A I have function 1, so in class B how do I call function1 on the instance of class A?