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Assets/MyGame/aa/UI/Home/Sub/UIHome_BY_SettingPenel.cs

@@ -78,7 +78,7 @@ public class UIHome_BY_SettingPanel : SubUIBase
         CacheToggleColor(toggle_Fps30);
         CacheToggleColor(toggle_Fps45);
         CacheToggleColor(toggle_Fps60);
-        int fps = PlayerPrefs.GetInt("TargetFps", 2);
+        int fps = PlayerPrefs.GetInt("TargetFps", 1);
         ApplyFps(fps);
         toggle_Fps30?.onValueChanged.AddListener(a => { if (a) SetFps(0); });
         toggle_Fps45?.onValueChanged.AddListener(a => { if (a) SetFps(1); });
@@ -120,7 +120,11 @@ public class UIHome_BY_SettingPanel : SubUIBase
         UpdateToggleColor(toggle_QualityLow, level == 0);
         UpdateToggleColor(toggle_QualityMid, level == 1);
         UpdateToggleColor(toggle_QualityHigh, level == 2);
-        QualitySettings.SetQualityLevel(level, true);
+        // 关键：applyExpensiveChanges 必须为 false。
+        // URP 下每个画质档位绑定不同 URP Asset，SetQualityLevel(true) 会立即重建渲染管线/重编译 shader，
+        // 瞬间 GPU 负载骤增，在低端显卡/驱动不兼容时触发设备重置导致闪退。
+        // false 表示昂贵更改延迟到安全时机（下一帧）应用，避免闪退。
+        QualitySettings.SetQualityLevel(level, false);
     }
 
     private void SetFps(int level)
@@ -138,13 +142,12 @@ public class UIHome_BY_SettingPanel : SubUIBase
         UpdateToggleColor(toggle_Fps30, level == 0);
         UpdateToggleColor(toggle_Fps45, level == 1);
         UpdateToggleColor(toggle_Fps60, level == 2);
-        // 关键：vSyncCount != 0 会让 Application.targetFrameRate 失效（被屏幕刷新率覆盖）。
-        // Balanced/High Fidelity 画质默认 vSyncCount=1，必须强制关闭才能让帧率档位生效。
-        QualitySettings.vSyncCount = 0;
+        // 中高档统一为 60 帧。移动端强制垂直同步，45 不可用（60Hz 整数倍才合法），
+        // 故中档(45)也直接按 60 处理，避免闪退。
         switch (level)
         {
             case 0: Application.targetFrameRate = 30; break;
-            case 1: Application.targetFrameRate = 45; break;
+            case 1:
             case 2: Application.targetFrameRate = 60; break;
         }
     }