[Large screen] Shows SearchActivity at right pane

package com.android.settings.activityembedding;

import android.app.Activity;

import android.app.settings.SettingsEnums;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import androidx.annotation.NonNull;

import androidx.window.embedding.ActivityFilter;

import androidx.window.embedding.ActivityRule;

import androidx.window.embedding.SplitController;

import androidx.window.embedding.SplitPairFilter;

import androidx.window.embedding.SplitPairRule;

import com.android.settings.SubSettings;

import com.android.settings.Utils;

import com.android.settings.homepage.SettingsHomepageActivity;

import com.android.settings.overlay.FeatureFactory;

import java.util.HashSet;

import java.util.Set;

                null /* secondaryIntentAction */,

                true /* finishPrimaryWithSecondary */,

                true /* finishSecondaryWithPrimary */);

        // Set rules here to show full screen for specified Activity.

        registerAlwaysExpandRule();

    }

    /** Register a SplitPairRule for 2-pane. */

                LayoutDirection.LOCALE));

    }

    private void registerAlwaysExpandRule() {

        final Set<ActivityFilter> activityFilters = new HashSet<>();

        final Intent searchIntent = FeatureFactory.getFactory(mContext).getSearchFeatureProvider()

                .buildSearchIntent(mContext, SettingsEnums.SETTINGS_HOMEPAGE);

        addActivityFilter(activityFilters, searchIntent);

        mSplitController.registerRule(new ActivityRule(activityFilters, true /* alwaysExpand */));

    }

    private void registerHomepagePlaceholderRule() {

        final Set<ActivityFilter> activityFilters = new HashSet<>();

        addActivityFilter(activityFilters, SettingsHomepageActivity.class);