SDL: Android: getCurrentOrientation uses getContext() to retrieve the activity (see bug #4825)

SDL Commits
1 
From 325ae5c35d28ffc059dd91d7a94bcf62494debb3 Mon Sep 17 00:00:00 2001
From: Sylvain <[EMAIL REDACTED]>
Date: Wed, 13 Oct 2021 08:35:56 +0200
Subject: [PATCH] Android: getCurrentOrientation uses getContext() to retrieve
 the activity (see bug #4825)

---
 .../app/src/main/java/org/libsdl/app/SDLActivity.java        | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java b/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
index d71363f86e..f850b0a603 100644
--- a/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
+++ b/android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
@@ -381,10 +381,11 @@ protected void onStart() {
     public static int getCurrentOrientation() {
         int result = SDL_ORIENTATION_UNKNOWN;
 
-        if (mSingleton == null) {
+        Activity activity = (Activity)getContext();
+        if (activity == null) {
             return result;
         }
-        Display display = SDLActivity.mSingleton.getWindowManager().getDefaultDisplay();
+        Display display = activity.getWindowManager().getDefaultDisplay();
 
         switch (display.getRotation()) {
             case Surface.ROTATION_0: