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Packages/com.unity.inputsystem/Samples~/RebindingUI/RebindSaveLoad.cs

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+using UnityEngine;
+using UnityEngine.InputSystem;
+
+namespace UnityEngine.InputSystem.Samples.RebindUI
+{
+    /// <summary>
+    /// Handles persisting binding overrides which implies that customizations of controls will be persisted
+    /// between runs.
+    /// </summary>
+    public class RebindSaveLoad : MonoBehaviour
+    {
+        [Tooltip("The associated input action asset to be serialized to player preferences (Required).")]
+        public InputActionAsset actions;
+
+        [Tooltip("The player preference key to be used when serializing binding overrides to player preferences (Required).")]
+        public string playerPreferenceKey;
+
+        [Tooltip("Specifies whether to load and apply binding overrides when the component is enabled")]
+        public bool loadOnEnable = true;
+
+        [Tooltip("Specifies whether to save binding overrides when the component is disabled")]
+        public bool saveOnDisable = true;
+
+        /// <summary>
+        /// Loads binding overrides from player preferences and applies them to the associated input action asset.
+        /// </summary>
+        public void Load()
+        {
+            if (!IsValidConfiguration())
+                return;
+
+            var rebinds = PlayerPrefs.GetString(playerPreferenceKey);
+            if (string.IsNullOrEmpty(rebinds))
+                return; // OK, we may not have saved any binding overrides yet.
+
+            actions.LoadBindingOverridesFromJson(rebinds);
+        }
+
+        /// <summary>
+        /// Saves binding overrides from the associated input action asset and persists them to player preferences.
+        /// </summary>
+        public void Save()
+        {
+            if (!IsValidConfiguration())
+                return;
+
+            var rebinds = actions.SaveBindingOverridesAsJson();
+            PlayerPrefs.SetString(playerPreferenceKey, rebinds);
+        }
+
+        private void OnEnable()
+        {
+            if (loadOnEnable)
+                Load();
+        }
+
+        private void OnDisable()
+        {
+            if (saveOnDisable)
+                Save();
+        }
+
+        private bool IsValidConfiguration()
+        {
+            if (actions == null)
+            {
+                Debug.LogWarning("Unable to apply binding overrides from player preferences without an associated action asset.");
+                return false;
+            }
+
+            if (string.IsNullOrEmpty(playerPreferenceKey))
+            {
+                Debug.LogWarning("Unable to load binding overrides from player preferences without a non-empty preference key.");
+                return false;
+            }
+
+            return true;
+        }
+    }
+}