Unity编辑器-获取Projectwindow中拖拽内容的路径

参考

Unity Editor 实现给属性面板上拖拽赋值资源路径

API

Event
DragAndDrop

示例

Mono脚本

using UnityEngine;
public class TestScene : MonoBehaviour
{[SerializeField] string testName;
}

Editor脚本
重写InspectorGUI，在该函数中通过Event的Type参数获取当前的拖拽类型
拖拽中，如果鼠标指针进入目标区域，修改鼠标指针
拖拽释放，判断鼠标是否在目标区域，如果是，获取拖拽内容的路径
注意：不设置鼠标指针为通用状态无法获取拖拽对象的路径

using UnityEditor;
[CustomEditor(typeof(TestScene))]
public class TestSceneInspector : Editor
{SerializedProperty testName;private void OnEnable(){testName = serializedObject.FindProperty(nameof(testName));}public override void OnInspectorGUI(){serializedObject.Update();EditorGUILayout.PropertyField(testName, new GUIContent("测试"));if (GetDragObjectPathsInProjectWindow(GUILayoutUtility.GetLastRect(), out string[] paths)){if (paths.Length > 0)testName.stringValue = System.IO.Path.GetFileNameWithoutExtension(paths[0]);}serializedObject.ApplyModifiedProperties();}bool GetDragObjectPathsInProjectWindow(Rect targetRect, out string[] paths){//拖拽提示if (Event.current.type == EventType.DragUpdated){Event.current.Use();if (DragObjectInArea(targetRect))DragAndDrop.visualMode = DragAndDropVisualMode.Generic;//鼠标指针修改为通用拖拽模式，设置为该模式该可以获取拖拽对象的路径elseDragAndDrop.visualMode = DragAndDropVisualMode.None;//鼠标指针修改为无指示模式         }//拖拽释放并且在目标区域内if (Event.current.type == EventType.DragPerform && DragObjectInArea(targetRect)){Event.current.Use();paths = DragAndDrop.paths;return true;}else{paths = null;return false;}bool DragObjectInArea(Rect rect){return rect.Contains(Event.current.mousePosition);}}
}