From 215e73b07f1c6d49e6bcd8c6730e824cd43d851a Mon Sep 17 00:00:00 2001
From: Jaap-Jan de Wit | DodoTech <jaap-jan@dodotech.dev>
Date: Sat, 1 Aug 2026 13:16:56 +0200
Subject: [PATCH] Let the phone's theme past the activity it is attached to
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The head has now run on a device, and the first thing it did was die on the way up.
DodoTheme parented @android:style/Theme.Material.NoActionBar, but AvaloniaMainActivity
descends from AndroidX's AppCompatActivity, which asserts its own theme attributes while
inflating and throws — "You need to use a Theme.AppCompat theme (or descendant)" — before
a single Avalonia frame exists. The platform's own parents are the ones that look right,
which is why the audit read as correct and the launcher icon still opened onto a splash
screen and then nothing.

Theme.AppCompat.NoActionBar instead, dark rather than .Light because every override below
it repaints the window near-black regardless. The no-action-bar and status-bar decisions
those overrides carry are untouched, so the reason they are there — a header that has to
hold the vault name, and a clock that would otherwise be dark-on-dark — still holds.

Verified on a OnePlus CPH2765: builds, deploys, and reaches the sign-in screen.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
---
 src/DodoSSH.Client.Android/Resources/values/styles.xml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/DodoSSH.Client.Android/Resources/values/styles.xml b/src/DodoSSH.Client.Android/Resources/values/styles.xml
index 551e59d..f2b81b0 100644
--- a/src/DodoSSH.Client.Android/Resources/values/styles.xml
+++ b/src/DodoSSH.Client.Android/Resources/values/styles.xml
@@ -1,6 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
   <!--
+    The AppCompat parent is not a preference. Avalonia's AvaloniaMainActivity descends from AndroidX's
+    AppCompatActivity, which checks for its own theme attributes while inflating and throws
+    IllegalStateException — "You need to use a Theme.AppCompat theme (or descendant)" — before a single
+    Avalonia frame exists. The platform's own Theme.Material parents look right and crash on launch.
+
+    The dark variant rather than .Light, because everything below repaints the window near-black anyway.
+
     No action bar: this head draws its own header, because the design's header carries the vault name and
     the sync dot, which a system action bar has nowhere to put.
 
@@ -8,7 +15,7 @@
     strip is #7E8A84 text on near-black, and leaving this at its default renders dark-on-dark — legible
     on the mock-up and invisible on a device.
   -->
-  <style name="DodoTheme" parent="@android:style/Theme.Material.NoActionBar">
+  <style name="DodoTheme" parent="Theme.AppCompat.NoActionBar">
     <item name="android:windowBackground">@color/dodo_window</item>
     <item name="android:statusBarColor">@color/dodo_window</item>
     <item name="android:navigationBarColor">@color/dodo_window</item>