[note] usage model tree of the unity resource tree structure virtualizingtreeview

【 plug-in unit 】VirtualizingTreeView

Thanks for the plug-in source ：Virtualizing Tree View - Self purchase scarcity Unity resources

The main function of this plug-in is to load local resources to generate UI Directory tree ,DOME The function in is to generate the following Hierarchy The panel is the same UI, Want to be a copy of the resource panel .

What I need this time is ： Only the tree structure functions of the models in the project are displayed

One 、 In the project UI Add TreeView.prefab The precast body , At the same time, add an empty object and bind TreeViewDemo.cs Script

Two 、 Set the parent object of the model tree to be displayed Tag, Children do not need to be set , Then add judgment Tag Condition to display only the model tree

3、 ... and 、 add to Tag Judge the condition ： stay TreeViewDemo.cs Script Start() Method, add a condition to the following code

IEnumerable<GameObject> dataItems = Resources.FindObjectsOfTypeAll<GameObject>().Where(go => !IsPrefab(go.transform) && go.transform.parent == null && go.tag == "Finish").OrderBy(t => t.transform.GetSiblingIndex());

Four 、 Click on the model tree object , Get the model ： stay TreeViewDemo.cs Add the following code to the script

        private void OnSelectionChanged(object sender, SelectionChangedArgs e)
        {
            #if UNITY_EDITOR
            //Do something on selection changed (just syncronized with editor's hierarchy for demo purposes)
            UnityEditor.Selection.objects = e.NewItems.OfType<GameObject>().ToArray();
           #endif

            // Get object 
            foreach (var item in e.NewItems.OfType<GameObject>().ToArray())
            {
                print(" In the test ..." + item.name);
                print(item.gameObject.transform.localPosition);
            }

            // Get the last clicked object 
            foreach (var item in e.OldItems.OfType<GameObject>().ToArray())
            {
                print(item.gameObject);
            }
            
        }

OnSelectionChanged This method was originally run under the editor , To show the synchronization effect , We should not write code to  #if UNITY_EDITOR Just inside .
           

=========== The project is urgent , Other functions have not been studied in depth