From 3802ca57ed7df8f92019c96d1f00c349922a4305 Mon Sep 17 00:00:00 2001
From: Thomas SharedInbox <sharedinbox@thomas-guettler.de>
Date: Thu, 14 May 2026 19:29:25 +0200
Subject: [PATCH] fix(ui): hide AppBar back button on Android/iOS

Mobile platforms provide OS-level back navigation (swipe gesture),
so the redundant AppBar back button only clutters the toolbar.
Desktop keeps it since there is no system back gesture.

Closes #69

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 lib/ui/screens/email_detail_screen.dart | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/ui/screens/email_detail_screen.dart b/lib/ui/screens/email_detail_screen.dart
index 7654c9e..63a26ca 100644
--- a/lib/ui/screens/email_detail_screen.dart
+++ b/lib/ui/screens/email_detail_screen.dart
@@ -57,8 +57,12 @@ class _EmailDetailScreenState extends ConsumerState<EmailDetailScreen> {
     final header = detail.valueOrNull?.$1;
     final body = detail.valueOrNull?.$2;
 
+    final isMobile = defaultTargetPlatform == TargetPlatform.android ||
+        defaultTargetPlatform == TargetPlatform.iOS;
+
     return Scaffold(
       appBar: AppBar(
+        automaticallyImplyLeading: !isMobile,
         title: Text(
           header?.subject ?? '(loading…)',
           overflow: TextOverflow.ellipsis,