feat: prompt for restart when changing renderer

VoidLink/Localization/Localizable.xcstrings

@@ -3837,6 +3837,98 @@
         }
       }
     },
+    "Quit Now" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "立即退出"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "立即退出"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "立即退出"
+          }
+        }
+      }
+    },
+    "Rendering mode change requires app restart" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "更改渲染模式需要重启应用以确保干净启动。您是否要立即退出应用？"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "更改渲染模式需要重新啟動應用程式以確保乾淨啟動。您是否要立即退出應用程式？"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "更改渲染模式需要重新啟動應用程式以確保乾淨啟動。您是否要立即退出應用程式？"
+          }
+        }
+      }
+    },
+    "Restart Required" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "需要重启"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "需要重新啟動"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "需要重新啟動"
+          }
+        }
+      }
+    },
+    "Later" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "稍后"
+          }
+        },
+        "zh-Hant" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "稍後"
+          }
+        },
+        "zh-HK" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "稍後"
+          }
+        }
+      }
+    },
     "Read Widget Instruction" : {
       "extractionState" : "manual",
       "localizations" : {

VoidLink/ViewControllers/SettingsViewController.m

@@ -1636,6 +1636,48 @@ BOOL isCustomResolution(int resolutionSelected) {
 }
 
 - (void)renderingBackendChanged:(UISegmentedControl *)sender {
+
+    // Get the current settings to compare with the new selection
+    DataManager* dataMan = [[DataManager alloc] init];
+    TemporarySettings* currentSettings = [dataMan getSettings];
+    NSInteger previousBackend = [currentSettings.renderingBackend integerValue];
+    
+
+    // Check if the rendering backend has actually changed
+    if (previousBackend != sender.selectedSegmentIndex) {
+        // Show alert to prompt user to restart the app
+        NSString *message = [LocalizationHelper localizedStringForKey:@"Rendering mode change requires app restart"];
+        
+        UIAlertController *alertController = [UIAlertController alertControllerWithTitle:[LocalizationHelper localizedStringForKey:@"Restart Required"]
+                                                                                 message:message
+                                                                          preferredStyle:UIAlertControllerStyleAlert];
+        
+        UIAlertAction *quitAction = [UIAlertAction actionWithTitle:[LocalizationHelper localizedStringForKey:@"Quit Now"]
+                                                              style:UIAlertActionStyleDestructive
+                                                            handler:^(UIAlertAction * _Nonnull action) {
+
+            DataManager* directDataMan = [[DataManager alloc] init];
+            Settings* directSettings = [directDataMan retrieveSettings];
+            directSettings.renderingBackend = [NSNumber numberWithInteger:sender.selectedSegmentIndex];
+            [directDataMan saveData];
+            
+            [self saveSettings];
+            
+            exit(0);
+        }];
+        
+        UIAlertAction *laterAction = [UIAlertAction actionWithTitle:[LocalizationHelper localizedStringForKey:@"Later"]
+                                                               style:UIAlertActionStyleCancel
+                                                             handler:^(UIAlertAction * _Nonnull action) {
+            // Save settings immediately to persist the renderer change
+            [self saveSettings];
+        }];
+        
+        [alertController addAction:laterAction];
+        [alertController addAction:quitAction];
+        [self presentViewController:alertController animated:YES completion:nil];
+    }
+    
     // Disable PiP toggle when Metal renderer is selected
     if (sender.selectedSegmentIndex == RENDER_METAL) {
         // Performance mode (Metal renderer) selected - disable PiP

VoidLink/ViewControllers/ToolboxViewController.swift

@@ -36,7 +36,7 @@ import UIKit
         "widgetLayoutTool":SwiftLocalizationHelper.localizedString(forKey: "[ On-screen widget tool ]"),
         "bringUpSoftKeyboard":SwiftLocalizationHelper.localizedString(forKey: "[ Bring up soft keyboard ]"),
         "enterPip":SwiftLocalizationHelper.localizedString(forKey: "[ Enter picture-in-picture mode ]"),
-        "toggleStatsOverlay":SwiftLocalizationHelper.localizedString(forKey: "[ Toggle stats overlay & graphs ]")
+        "toggleStatsOverlay":SwiftLocalizationHelper.localizedString(forKey: "[ Toggle stats overlay & graphs ]"),
         "disconnectAndQuitApp":SwiftLocalizationHelper.localizedString(forKey: "[ Disconnect & quit app ]")
     ]