Fix setImmersiveMode using unsupported flags in some older devices.

love/src/main/java/org/love2d/android/GameActivity.java

@@ -215,17 +215,22 @@ public class GameActivity extends SDLActivity {
                 public void run() {
                     synchronized (lock) {
                         if (immersive_enabled) {
+                            int flags = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
+
+                            if (android.os.Build.VERSION.SDK_INT >= 16) {
+                                flags |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                                         View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
+                                         View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                                         View.SYSTEM_UI_FLAG_FULLSCREEN;
+                            }
+                            if (android.os.Build.VERSION.SDK_INT >= 19) {
+                                flags |= View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
+                            }
+                            getWindow().getDecorView().setSystemUiVisibility(flags);
+                        } else if (android.os.Build.VERSION.SDK_INT >= 16) {
                             getWindow().getDecorView().setSystemUiVisibility(
-                                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE
-                                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
-                                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
-                                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
-                                            | View.SYSTEM_UI_FLAG_FULLSCREEN
-                                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-                        } else {
-                            getWindow().getDecorView().setSystemUiVisibility(
-                                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE
-                                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                                    View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                             );
                         }