fix(device_info_plus): guard iOS vision selector

Author: andyzhshg

packages/device_info_plus/device_info_plus/ios/device_info_plus/Sources/device_info_plus/FPPDeviceInfoPlusPlugin.m

@@ -32,7 +32,9 @@ - (void)handleMethodCall:(FlutterMethodCall *)call
     }
     NSNumber *isiOSAppOnVision = [NSNumber numberWithBool:NO];
     if (@available(iOS 26.1, *)) {
-      isiOSAppOnVision = [NSNumber numberWithBool:[info isiOSAppOnVision]];
+      if ([info respondsToSelector:@selector(isiOSAppOnVision)]) {
+        isiOSAppOnVision = [NSNumber numberWithBool:[info isiOSAppOnVision]];
+      }
     }
     NSError *error = nil;
     NSDictionary *fsAttributes = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];

packages/device_info_plus/device_info_plus/test/ios_device_info_native_source_test.dart

@@ -0,0 +1,20 @@
+import 'dart:io';
+
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  test('guards iOS vision process info selector before invocation', () {
+    final source = File(
+      'ios/device_info_plus/Sources/device_info_plus/FPPDeviceInfoPlusPlugin.m',
+    ).readAsStringSync();
+
+    final guardIndex = source.indexOf(
+      'respondsToSelector:@selector(isiOSAppOnVision)',
+    );
+    final invocationIndex = source.indexOf('[info isiOSAppOnVision]');
+
+    expect(guardIndex, isNonNegative);
+    expect(invocationIndex, isNonNegative);
+    expect(guardIndex, lessThan(invocationIndex));
+  });
+}