From bd8b945bb321ac73b00353c7bea74b0a5292d9a3 Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Fri, 12 Apr 2024 17:22:45 +0200
Subject: [PATCH] Register rotation watcher only when possible

Old Android versions may not be able to register a rotation watcher for
a secondary display. In that case, report the error instead of
registering a rotation watcher for the default display.

Refs <https://github.com/Genymobile/scrcpy/pull/4740#issuecomment-2051245633>

Suggested by: Kaiming Hu <huxxx1234@gmail.com>
---
 .../java/com/genymobile/scrcpy/wrappers/WindowManager.java    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/server/src/main/java/com/genymobile/scrcpy/wrappers/WindowManager.java b/server/src/main/java/com/genymobile/scrcpy/wrappers/WindowManager.java
index ae1468f4..44394ba9 100644
--- a/server/src/main/java/com/genymobile/scrcpy/wrappers/WindowManager.java
+++ b/server/src/main/java/com/genymobile/scrcpy/wrappers/WindowManager.java
@@ -189,6 +189,10 @@ public final class WindowManager {
                 cls.getMethod("watchRotation", IRotationWatcher.class, int.class).invoke(manager, rotationWatcher, displayId);
             } catch (NoSuchMethodException e) {
                 // old version
+                if (displayId != 0) {
+                    Ln.e("Secondary display rotation not supported on this device");
+                    return;
+                }
                 cls.getMethod("watchRotation", IRotationWatcher.class).invoke(manager, rotationWatcher);
             }
         } catch (Exception e) {