current outlet

lib/common/extension/build_context_extension.dart

@@ -0,0 +1,7 @@
+part of 'extension.dart';
+
+extension BuildContextExt on BuildContext {
+  double get deviceHeight => MediaQuery.of(this).size.height;
+
+  double get deviceWidth => MediaQuery.of(this).size.width;
+}

lib/common/extension/extension.dart

@@ -1 +1,3 @@
-  // TODO: define your code
+import 'package:flutter/material.dart';
+
+part 'build_context_extension.dart';