Custom inspector

Learn the Editor class to write a custom Inspector.

The CustomEditor Attribute and Editor Class

To customize how a component looks in the Inspector panel, author a class inheriting from Editor and decorated with [CustomEditor(typeof(TargetComponent))]. This enables highlighting fields, adding custom buttons, or organizing workflows.

[CustomEditor(typeof(Character))]
public class CharacterEditor : Editor
{
    // Custom inspector for the Character component
}

Rendering the Inspector via OnInspectorGUI

The custom Inspector interface is rendered inside the OnInspectorGUI() method. To retain default serialized fields while appending custom buttons or banners below them, call DrawDefaultInspector().

public override void OnInspectorGUI()
{
    DrawDefaultInspector();
    if (GUILayout.Button("Heal")) { /* Action */ }
}

Exercise Trigger Inspector Button Action

If butonBasildi is true, print Debug.Log("Inspector butonu tiklandi");.

Show example solution

using System;

public static class Debug
{
    public static void Log(object message) => Console.WriteLine(message);
}

public class Program
{
    public static void OnInspectorGUI(bool butonBasildi)
    {
        if (butonBasildi)
        {
            Debug.Log("Inspector butonu tiklandi");
        }
    }

    public static void Main()
    {
        OnInspectorGUI(true);
    }
}

Test yourself

Which attribute is placed above an editor class to indicate which component it customizes?
- [RequireComponent]
- [InspectorTool]
- [CustomEditor]
- [AddComponentMenu]
Show answer

[CustomEditor] — The [CustomEditor(typeof(Component))] attribute links the editor class to the target component.

Override OnInspectorGUI Method

public override void ____() {}

Show answer

public override void OnInspectorGUI() {}

Inspector Customization Terminology

CustomEditor

Attribute linking editor to a component
OnInspectorGUI

Main method for Inspector drawing
DrawDefaultInspector

Draws component's default fields
target

Reference to target component edited

Next lesson: Gizmos and handles

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