From 84d4800a16126efe3128d7978efc5681ceca6aa9 Mon Sep 17 00:00:00 2001
From: Elias Naur <mail@eliasnaur.com>
Date: Fri, 24 Apr 2020 15:59:30 +0200
Subject: [PATCH] cmd/gogio: match Android window background with default Gio
 color

While launching an app on Android, the hard-coded theme is used for
the color. That color is by default black, and results in a jarring
transition to the actual app background.

The default Gio color is white, so use that for the theme background
as well.

This change will break for "dark mode" programs and similar.  A future
improvement would be to reflect the actual app background in the theme.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
---
 cmd/gogio/androidbuild.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmd/gogio/androidbuild.go b/cmd/gogio/androidbuild.go
index f428a892..acc3f27b 100644
--- a/cmd/gogio/androidbuild.go
+++ b/cmd/gogio/androidbuild.go
@@ -56,11 +56,14 @@ const (
 	themes = `<?xml version="1.0" encoding="utf-8"?>
 <resources>
 	<style name="Theme.GioApp" parent="android:style/Theme.NoTitleBar">
+		<item name="android:windowBackground">@android:color/white</item>
 	</style>
 </resources>`
 	themesV21 = `<?xml version="1.0" encoding="utf-8"?>
 <resources>
 	<style name="Theme.GioApp" parent="android:style/Theme.NoTitleBar">
+		<item name="android:windowBackground">@android:color/white</item>
+
 		<item name="android:windowDrawsSystemBarBackgrounds">true</item>
 		<item name="android:navigationBarColor">#40000000</item>
 		<item name="android:statusBarColor">#40000000</item>