Fixed screen orientation on Android

platform/android/display_server_android.cpp

@@ -196,7 +196,7 @@ void DisplayServerAndroid::window_set_input_text_callback(const Callable &p_call
 }
 
 void DisplayServerAndroid::window_set_rect_changed_callback(const Callable &p_callable, DisplayServer::WindowID p_window) {
-	// Not supported on Android.
+	rect_changed_callback = p_callable;
 }
 
 void DisplayServerAndroid::window_set_drop_files_callback(const Callable &p_callable, DisplayServer::WindowID p_window) {
@@ -389,6 +389,19 @@ void DisplayServerAndroid::reset_window() {
 #endif
 }
 
+void DisplayServerAndroid::notify_surface_changed(int p_width, int p_height) {
+	if (rect_changed_callback.is_null()) {
+		return;
+	}
+
+	const Variant size = Rect2i(0, 0, p_width, p_height);
+	const Variant *sizep = &size;
+	Variant ret;
+	Callable::CallError ce;
+
+	rect_changed_callback.call(reinterpret_cast<const Variant **>(&sizep), 1, ret, ce);
+}
+
 DisplayServerAndroid::DisplayServerAndroid(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
 	rendering_driver = p_rendering_driver;
 

platform/android/display_server_android.h

@@ -112,6 +112,7 @@ private:
 	Callable window_event_callback;
 	Callable input_event_callback;
 	Callable input_text_callback;
+	Callable rect_changed_callback;
 
 	void _window_callback(const Callable &p_callable, const Variant &p_arg) const;
 
@@ -215,6 +216,7 @@ public:
 	static void register_android_driver();
 
 	void reset_window();
+	void notify_surface_changed(int p_width, int p_height);
 
 	virtual Point2i mouse_get_position() const;
 	virtual int mouse_get_button_state() const;

platform/android/java/lib/src/org/godotengine/godot/vulkan/VkThread.kt

@@ -61,6 +61,7 @@ internal class VkThread(private val vkSurfaceView: VkSurfaceView, private val vk
 	private var rendererInitialized = false
 	private var rendererResumed = false
 	private var resumed = false
+	private var surfaceChanged = false
 	private var hasSurface = false
 	private var width = 0
 	private var height = 0
@@ -141,8 +142,10 @@ internal class VkThread(private val vkSurfaceView: VkSurfaceView, private val vk
 	fun onSurfaceChanged(width: Int, height: Int) {
 		lock.withLock {
 			hasSurface = true
+			surfaceChanged = true;
 			this.width = width
 			this.height = height
+
 			lockCondition.signalAll()
 		}
 	}
@@ -188,8 +191,11 @@ internal class VkThread(private val vkSurfaceView: VkSurfaceView, private val vk
 									rendererInitialized = true
 									vkRenderer.onVkSurfaceCreated(vkSurfaceView.holder.surface)
 								}
+							}
 
+							if (surfaceChanged) {
 								vkRenderer.onVkSurfaceChanged(vkSurfaceView.holder.surface, width, height)
+								surfaceChanged = false
 							}
 
 							// Break out of the loop so drawing can occur without holding onto the lock.

platform/android/java_godot_lib_jni.cpp

@@ -173,6 +173,7 @@ JNIEXPORT void JNICALL Java_org_godotengine_godot_GodotLib_resize(JNIEnv *env, j
 				os_android->set_native_window(native_window);
 
 				DisplayServerAndroid::get_singleton()->reset_window();
+				DisplayServerAndroid::get_singleton()->notify_surface_changed(p_width, p_height);
 			}
 		}
 	}