Convert All activity to kotlin

app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryDetailScene.java

@@ -473,7 +473,7 @@ public class GalleryDetailScene extends CollapsingToolbarScene implements View.O
 
     @Override
     public void onNavigationClick() {
-        onBackPressed();
+        requireActivity().getOnBackPressedDispatcher().onBackPressed();
         super.onNavigationClick();
     }
 
@@ -1412,11 +1412,6 @@ public class GalleryDetailScene extends CollapsingToolbarScene implements View.O
         return false;
     }
 
-    @Override
-    public void onBackPressed() {
-        finish();
-    }
-
     @Override
     protected void onSceneResult(int requestCode, int resultCode, Bundle data) {
         if (requestCode == REQUEST_CODE_COMMENT_GALLERY) {

app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryPreviewsScene.java

@@ -220,7 +220,7 @@ public class GalleryPreviewsScene extends ToolbarScene {
 
     @Override
     public void onNavigationClick() {
-        onBackPressed();
+        requireActivity().getOnBackPressedDispatcher().onBackPressed();
     }
 
     public boolean onItemClick(int position) {