From dc2fcc46f516588f4575c1fe8cfeca3e57a1653c Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Sat, 14 Dec 2024 10:15:20 +0100
Subject: [PATCH] Add workaround for Pico 4 Ultra

Make ActivityThread.isSystem() return true to avoid a
NullPointerException later.

Refs #5659 comment <https://github.com/Genymobile/scrcpy/issues/5659#issuecomment-2540963953>
Fixes #5659 <https://github.com/Genymobile/scrcpy/issues/5659>
---
 server/src/main/java/com/genymobile/scrcpy/Workarounds.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/server/src/main/java/com/genymobile/scrcpy/Workarounds.java b/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
index a5283a9631..fb4c1389a8 100644
--- a/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
+++ b/server/src/main/java/com/genymobile/scrcpy/Workarounds.java
@@ -42,6 +42,11 @@ public final class Workarounds {
             Field sCurrentActivityThreadField = ACTIVITY_THREAD_CLASS.getDeclaredField("sCurrentActivityThread");
             sCurrentActivityThreadField.setAccessible(true);
             sCurrentActivityThreadField.set(null, ACTIVITY_THREAD);
+
+            // activityThread.mSystemThread = true;
+            Field mSystemThreadField = ACTIVITY_THREAD_CLASS.getDeclaredField("mSystemThread");
+            mSystemThreadField.setAccessible(true);
+            mSystemThreadField.setBoolean(ACTIVITY_THREAD, true);
         } catch (Exception e) {
             throw new AssertionError(e);
         }