Initial commit

lib/utils/device_utils.dart

@@ -0,0 +1,33 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+class DeviceUtils {
+  /// Returns true if the device should be considered a tablet based on screen size.
+  /// Uses 600dp shortestSide threshold which is a common heuristic.
+  static bool isTablet(BuildContext context) {
+    final shortestSide = MediaQuery.of(context).size.shortestSide;
+    return shortestSide >= 600;
+  }
+
+  /// Very naive Android TV detection. Treats a device as TV if it runs Android
+  /// and has extremely large width (>= 950dp) and is in landscape.
+  static bool isAndroidTv(BuildContext context) {
+    if (defaultTargetPlatform != TargetPlatform.android) return false;
+    final size = MediaQuery.of(context).size;
+    return size.shortestSide >= 950 && size.aspectRatio > 1.4;
+  }
+
+  static bool isLargeScreen(BuildContext context) {
+    return isTablet(context) || isAndroidTv(context);
+  }
+
+  /// Calculates responsive grid column count depending on screen width.
+  static int calculateGridCount(BuildContext context) {
+    final width = MediaQuery.of(context).size.width;
+    if (width >= 1400) return 6;
+    if (width >= 1200) return 5;
+    if (width >= 900) return 4;
+    if (width >= 600) return 3;
+    return 2;
+  }
+}