[Physical Keybaord] Fix Mouse key image truncate

Seperate Images in Mouse Key page to apply scaling.

Bug: 389665773
Flag: com.android.settings.keyboard.keyboard_and_touchpad_a11y_new_page_enabled
Test: atest
packages/apps/Settings/tests/robotests/src/com/android/settings/inputmethod/

Change-Id: I207c13fb99fa5c01c08c7ca92eae2d1d5781a830

src/com/android/settings/inputmethod/MouseKeysMainPageFragment.java

@@ -20,6 +20,7 @@ import static com.android.settings.inputmethod.PhysicalKeyboardFragment.getHardK
 
 import android.app.settings.SettingsEnums;
 import android.content.Context;
+import android.content.res.Configuration;
 import android.hardware.input.InputManager;
 import android.os.Bundle;
 import android.view.InputDevice;
@@ -32,6 +33,7 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.internal.util.Preconditions;
 import com.android.settings.R;
+import com.android.settings.activityembedding.ActivityEmbeddingUtils;
 import com.android.settings.dashboard.DashboardFragment;
 import com.android.settings.keyboard.Flags;
 import com.android.settings.search.BaseSearchIndexProvider;
@@ -125,7 +127,11 @@ public class MouseKeysMainPageFragment extends DashboardFragment
     private void configureImagesPreference() {
         final RecyclerView recyclerView = mMouseKeyImagesPreference.findViewById(
                 R.id.mouse_keys_image_recycler_list);
-        recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 2));
+        boolean isPortrait = getResources().getConfiguration().orientation
+                == Configuration.ORIENTATION_PORTRAIT;
+        boolean isTwoPaneState = ActivityEmbeddingUtils.isAlreadyEmbedded(this.getActivity());
+        int column = isPortrait && !isTwoPaneState ? 1 : 2;
+        recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), column));
         recyclerView.setAdapter(new MouseKeysImageListAdapter(getActivity(), mCurrentInputDevice));
     }