feat: 主页面功能

lib/tools/util/app_screen.dart

@@ -0,0 +1,51 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+/// AppScreen class
+class AppScreen {
+  static double get screenWidth => _viewSize.width;
+  static double get screenHeight => _viewSize.height;
+  // static double get screenWidth => MediaQuery.of(Get.context!).size.width;
+  // static double get screenHeight => MediaQuery.of(Get.context!).size.height;
+
+  static Size size(BuildContext context) {
+    return MediaQuery.of(context).size;
+  }
+
+  static bool get isDebug => kDebugMode;
+
+  static double get statusBarHeight => Get.statusBarHeight / Get.pixelRatio;
+
+  static double get bottomBarHeight => Get.bottomBarHeight / Get.pixelRatio;
+
+  // static double get tabBarHeight => kToolbarHeight;
+
+  static double get navBarHeight => kToolbarHeight + statusBarHeight;
+
+  static bool get isDark => Get.isDarkMode;
+
+  static bool get isAndroid {
+    return GetPlatform.isAndroid;
+  }
+
+  static bool get isIos {
+    return GetPlatform.isIOS;
+  }
+
+  static Size get _viewSize {
+    if (Get.context != null) {
+      return MediaQuery.of(Get.context!).size;
+    }
+
+    final view = WidgetsBinding.instance.platformDispatcher.views.first;
+    return view.physicalSize / view.devicePixelRatio;
+  }
+
+  static double aRatioWidth({double? h, double aspectRatio = 1}) {
+    h ??= screenHeight;
+    return screenHeight * 1 / aspectRatio;
+  }
+
+  static double get keyboardHeight => Get.mediaQuery.viewInsets.bottom;
+}