Initial commit

2026-07-14 11:11:36 +08:00
commit 656499cf94
604 changed files with 119518 additions and 0 deletions
@@ -0,0 +1,27 @@
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+
+const double androidDetailDesktopTitleBarHeight = 38.0;
+const double androidDetailNavigationContentHeight = 30.0;
+
+double computeAndroidDetailNavigationHeight(BuildContext context) {
+  final topInset = MediaQuery.paddingOf(context).top;
+  return math.max(topInset, androidDetailDesktopTitleBarHeight) +
+      androidDetailNavigationContentHeight;
+}
+
+double computeAndroidDetailBannerHeight(BuildContext context) {
+  final mediaQuery = MediaQuery.of(context);
+  final bodyHeight = mediaQuery.size.height - mediaQuery.padding.top;
+  final preferredHeight = (bodyHeight * 0.46).clamp(300.0, 390.0);
+  final landscapeSafeHeight = bodyHeight * 0.55;
+
+  return math.min(preferredHeight, landscapeSafeHeight);
+}
+
+double computeAndroidDetailCollapseExtent(BuildContext context) {
+  final bannerHeight = computeAndroidDetailBannerHeight(context);
+  final navigationHeight = computeAndroidDetailNavigationHeight(context);
+  return math.max(1.0, bannerHeight - navigationHeight);
+}