From fbd65127bcb690ab9c7284c010ad224b82f170e7 Mon Sep 17 00:00:00 2001
From: iflyhere <57563846+iflyhere@users.noreply.github.com>
Date: Thu, 27 Aug 2026 20:25:46 +0200
Subject: [PATCH] Keep the activity alive across configuration changes

VideoActivity declares no android:configChanges, so every configuration
change destroys and recreates it. onCreate() re-runs the whole bring-up and
onPause()/onStop() tear the link down first, which means a few seconds of
black screen and a fresh USB/wfb-ng/decoder init.

That fires more often than it looks:

- window resize in multi-window / freeform / desktop mode (screenSize,
  smallestScreenSize, screenLayout) - also how the app is presented on
  Android XR headsets, where the panel is user resizeable
- attaching a keyboard or a dock (keyboard, keyboardHidden, navigation)
- rotation (orientation)

Handling those in-process is enough: the layout is ConstraintLayout based
and re-measures itself, the activity keeps no configuration dependent
state, and none of those qualifiers select alternative resources in this
project, so no onConfigurationChanged() override is needed.

uiMode and density are deliberately not in the list: values-night/ and the
mipmap-*dpi buckets do depend on them, so those two still need a recreate
to pick up the right resources.

Also:
- android:resizeableActivity="true" - be explicit rather than relying on
  the target SDK default
- android.hardware.touchscreen android:required="false" - the implicit
  default is required=true, which marks the app incompatible with any
  ground station driven by a pointer or a gamepad instead of a touchscreen
---
 app/src/main/AndroidManifest.xml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b13e729a..1ad6bc61 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,6 +2,11 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-feature android:name="android.hardware.usb.host" />
+    <!-- Ground stations without a touchscreen (headsets, TV boxes, kiosk displays) are
+         driven with a pointer or a gamepad, so do not make a touchscreen a requirement. -->
+    <uses-feature
+        android:name="android.hardware.touchscreen"
+        android:required="false" />
 
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
@@ -46,8 +51,10 @@
 
         <activity
             android:name=".VideoActivity"
+            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout|keyboard|keyboardHidden|navigation"
             android:exported="true"
             android:launchMode="singleInstance"
+            android:resizeableActivity="true"
             android:screenOrientation="sensorLandscape"
             android:theme="@style/Theme.FPVueMat">