导入R3，简单实现数据绑定UI，以及双向绑定

Assets/GameScripts/Main/GameScripts.Main.asmdef

@@ -3,7 +3,11 @@
     "rootNamespace": "",
     "references": [
         "GUID:921b262766d31374c8fd93ad67954b9c",
-        "GUID:63f032f8696ad5b4e99c26f7a9f89060"
+        "GUID:63f032f8696ad5b4e99c26f7a9f89060",
+        "GUID:77221876cc6b8244180b96e320b1bcd4",
+        "GUID:6055be8ebefd69e48b49212b09b47b2f",
+        "GUID:f51ebe6a0ceec4240a699833d6309b23",
+        "GUID:e34a5702dd353724aa315fb8011f08c3"
     ],
     "includePlatforms": [],
     "excludePlatforms": [],

Assets/GameScripts/Main/GameStart.cs

@@ -1,11 +1,20 @@
+using Cysharp.Threading.Tasks;
 using UnityEngine;
+using YooAsset;
 
 public class GameStart : MonoBehaviour
 {
     // Start is called once before the first execution of Update after the MonoBehaviour is created
-    void Start()
+    async void Start()
     {
         Debug.Log("GameStart");
         GamePreload.Inst.Test("call by GameStart");
+        await LoadSimpleR3Test();
+    }
+    async UniTask LoadSimpleR3Test()
+    {
+        AssetHandle handle =  YooAssets.LoadAssetAsync<GameObject>("SimpleR3Test");
+        await handle;
+        GameObject.Instantiate(handle.AssetObject, MainUICanvas.Inst.Medium);
     }
 }

Assets/GameScripts/Main/SimpleR3Test.cs

@@ -0,0 +1,19 @@
+using R3;
+using System;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class SimpleR3Test : MonoBehaviour
+{
+    BindableReactiveProperty<float> value = new(0);
+
+    public InputField inputField;
+    public Scrollbar scrollbar;
+
+
+    void Start()
+    {
+        value.BindToScrollbar(scrollbar).AddTo(this);
+        value.BindToInputField(inputField).AddTo(this);
+    }
+}

Assets/GameScripts/Main/SimpleR3Test.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 5ab3d77b09181e94e9d6303d5dd80174

Assets/GameScripts/Main/UnityUIBindings.cs

@@ -0,0 +1,51 @@
+using R3;
+using System;
+using TMPro;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace R3
+{
+    public static class UnityUIBindings
+    {
+        public static IDisposable SubscribeToScrollbar(this Observable<float> source, Scrollbar scrollbar)
+        {
+            return source.Subscribe(scrollbar, static (x, s) => s.value = x);
+        }
+        public static IDisposable SubscribeToText(this Observable<float> source, InputField inputField)
+        {
+            return source.Subscribe(inputField, static (x, t) => t.text = x.ToString());
+        }
+        public static IDisposable BindToScrollbar(this BindableReactiveProperty<float> source, Scrollbar scrollbar)
+        {
+            var disposable = new CompositeDisposable();
+
+            // 值 → Scrollbar
+            source.SubscribeToScrollbar(scrollbar).AddTo(disposable);
+
+            // Scrollbar → 值
+            scrollbar.OnValueChangedAsObservable().Subscribe(_value => { source.Value = _value; }).AddTo(disposable);
+
+            return disposable;
+        }
+        public static IDisposable BindToInputField(this BindableReactiveProperty<float> source, InputField inputField)
+        {
+            var disposable = new CompositeDisposable();
+
+            // 值 → InputField
+            source.SubscribeToText(inputField).AddTo(disposable);
+
+            // InputField → 值
+            inputField.OnValueChangedAsObservable().Subscribe(_value => 
+            {
+                float result;
+                if (float.TryParse(_value,out result))
+                source.Value = result; 
+            }).AddTo(disposable);
+
+            return disposable;
+        }
+    }
+}
+
+

Assets/GameScripts/Main/UnityUIBindings.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: f37692bbbf2a11c48b4cb9f3a32a4a77