Make sure we're rendering whenever the activity might be visible, even if we don't have focus.

This fixes rendering when a system dialog is over the application

android-project/app/src/main/java/org/libsdl/app/SDLActivity.java

@@ -788,7 +788,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
 
         // Try a transition to resumed state
         if (mNextNativeState == NativeState.RESUMED) {
-            if (mSurface.mIsSurfaceReady && mHasFocus && mIsResumedCalled) {
+            if (mSurface.mIsSurfaceReady && (mHasFocus || mHasMultiWindow) && mIsResumedCalled) {
                 if (mSDLThread == null) {
                     // This is the entry point to the C app.
                     // Start up the C app thread and enable sensor input for the first time
@@ -1133,23 +1133,6 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
      * This method is called by SDL using JNI.
      */
     public static boolean shouldMinimizeOnFocusLoss() {
-/*
-        if (Build.VERSION.SDK_INT >= 24) {
-            if (mSingleton == null) {
-                return true;
-            }
-
-            if (mSingleton.isInMultiWindowMode()) {
-                return false;
-            }
-
-            if (mSingleton.isInPictureInPictureMode()) {
-                return false;
-            }
-        }
-
-        return true;
-*/
         return false;
     }
 

android-project/app/src/main/java/org/libsdl/app/SDLSurface.java

@@ -164,13 +164,10 @@ public class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
            }
         }
 
-        // Don't skip in MultiWindow.
+        // Don't skip if we might be multi-window or have popup dialogs
         if (skip) {
             if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
-                if (SDLActivity.mSingleton.isInMultiWindowMode()) {
-                    Log.v("SDL", "Don't skip in Multi-Window");
-                    skip = false;
-                }
+                skip = false;
             }
         }