Android: Properly handle rotations

builds/android/app/src/main/java/org/easyrpg/player/player/EasyRpgPlayerActivity.java

@@ -26,6 +26,7 @@
 
 import android.app.AlertDialog;
 import android.content.ClipDescription;
+import android.content.Context;
 import android.content.Intent;
 import android.content.res.AssetManager;
 import android.content.res.Configuration;
@@ -62,6 +63,7 @@
 import org.easyrpg.player.game_browser.GameBrowserActivity;
 import org.easyrpg.player.settings.SettingsManager;
 import org.libsdl.app.SDLActivity;
+import org.libsdl.app.SDLSurface;
 
 import java.io.File;
 import java.lang.reflect.Method;
@@ -94,6 +96,11 @@ protected String[] getLibraries() {
         };
     }
 
+    @Override
+    protected SDLSurface createSDLSurface(Context context) {
+        return new EasyRpgSurface(context, this);
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -438,7 +445,6 @@ public void showInputLayout() {
     public void updateScreenPosition() {
         RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
                 LayoutParams.WRAP_CONTENT);
-        int topMargin, leftMargin;
 
         // Determine the multiplier
         int screenWidth = getWindowManager().getDefaultDisplay().getWidth();

builds/android/app/src/main/java/org/easyrpg/player/player/EasyRpgSurface.java

@@ -0,0 +1,26 @@
+package org.easyrpg.player.player;
+
+import android.content.Context;
+import android.view.SurfaceHolder;
+
+import org.libsdl.app.SDLSurface;
+
+public class EasyRpgSurface extends SDLSurface {
+    private EasyRpgPlayerActivity activity = null;
+
+    public EasyRpgSurface(Context context, EasyRpgPlayerActivity activity) {
+        super(context);
+
+        this.activity = activity;
+    }
+
+    @Override
+    public void surfaceChanged(SurfaceHolder holder,
+                               int format, int width, int height) {
+        // configurationChanged is not always sent because of Android bugs in various versions
+        // SDL uses the surfaceChanged event to detect rotations instead
+        super.surfaceChanged(holder, format, width, height);
+
+        activity.updateScreenPosition();
+    }
+}

src/platform/sdl/sdl2_ui.cpp

@@ -807,6 +807,11 @@ void Sdl2Ui::ProcessWindowEvent(SDL_Event &evnt) {
 		SDL_Event wait_event;
 
 		while (SDL_WaitEvent(&wait_event)) {
+			if (wait_event.type == SDL_WINDOWEVENT && wait_event.window.event != SDL_WINDOWEVENT_FOCUS_LOST) {
+				// Process size change etc. events
+				ProcessWindowEvent(wait_event);
+			}
+
 			if (FilterUntilFocus(&wait_event)) {
 				break;
 			}

src/platform/sdl/sdl3_ui.cpp

@@ -175,7 +175,7 @@ Sdl3Ui::~Sdl3Ui() {
 
 #ifdef SUPPORT_AUDIO
 	audio_.reset();
-#endif	
+#endif
 
 	SDL_Quit();
 }
@@ -732,6 +732,11 @@ void Sdl3Ui::ProcessWindowEvent(SDL_Event &evnt) {
 		SDL_Event wait_event;
 
 		while (SDL_WaitEvent(&wait_event)) {
+			if (wait_event.type >= SDL_EVENT_WINDOW_FIRST && wait_event.type <= SDL_EVENT_WINDOW_LAST && wait_event.type != SDL_EVENT_WINDOW_FOCUS_LOST) {
+				// Process size change etc. events
+				ProcessWindowEvent(wait_event);
+			}
+
 			if (FilterUntilFocus(&wait_event)) {
 				break;
 			}