SortableArrayAttribute

Sortable Array inspector

Automatically turn arrays/lists into ReorderableLists in Unity inspectors. Inspired by Alejandro Santiago's implementation.

Usage

Place the SortableArrayAttribute folder in your project. By default, the inspector will only draw arrays marked with the SortableArray attribute

public class ListReorderTest : MonoBehaviour
{  
	[SortableArray]
	public string[] stringArray; // This will be drawn with a ReorderableList

	public List<string> stringList; // This will be drawn as a default array
}

If you want to apply the reorderable list to all arrays, edit Editor\SortableArrayInspector.cs and change LIST_ALL_ARRAYS to true

Additional Features

Handles arrays/lists nested inside other classes

public class ListReorderTest : MonoBehaviour
{
	[Serializable]
	public class InternalClass
	{
		public bool testBool;
		[SortableArray] public List<int> innerList;
	}

	[Header("A single class instance, with an inner sortable list")]
	public InternalClass instance;

	[SortableArray]
	[Header("A list of serialized class instances")]
	public List<InternalClass> classList;
}

Drag and drop objects into arrays like the default inspector

Limitations

• ReorderableLists of class instances may be a little rough, especially in Unity versions below 5.3
• Custom inspectors will not automatically gain the ability to turn arrays into reorderable lists. See next section for creating custom inspectors that allow for this functionality.

Custom inspectors

Custom inspectors will not be able to automatically draw arrays as ReorderableLists unless they inherit from SortableArrayInspector. The class contains helper functions that can handle the default property drawing. Below is a template for a custom inspector.

[CustomEditor(typeof(YourCustomClass))]
public class CustomSortableInspector : SortableArrayInspector
{
	// Called by OnEnable
	protected override void InitInspector()
	{
		base.InitInspector();

		// Do your own initializations here
	}

	public override void OnInspectorGUI()
	{
		// Not initialized, try initializing
		if (listIndex == null)
			InitInspector();

		if (hasSortableArrays && listIndex != null)
		{
			serializedObject.Update();

			// Call the relevant default drawer functions here
			/*
			// Draw all properties
			DrawDefaultSortable();

			// Like DrawPropertiesExcluding
			DrawSortableExcept("sprites");

			// Draw all properties, starting from specified property
			DrawPropertiesFrom("propertyName");

			// Draw all properties until a specified property
			DrawPropertiesUpTo("endPropertyName");

			// Draw properties starting from startProperty, ends at endProperty
			DrawPropertiesFromUpTo("startProperty", "endProperty");
			*/

			// Write your custom inspector functions here
			EditorGUILayout.HelpBox("This is a custom inspector", MessageType.Info);

			serializedObject.ApplyModifiedProperties();
			return;
		}

		DrawDefaultInspector(); // Fallback, just in case
	}
}