Moves Search results into a separate RV (take 2).

Bug: 206905515
Test: Manually verified b/230648542 did not resurface. Tested
on phone and tablet with and without work profile.

Change-Id: If724f635286b9dff2c64255f9ece3568a5cb4ea9

src/com/android/launcher3/allapps/SearchRecyclerView.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.allapps;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import com.android.launcher3.views.RecyclerViewFastScroller;
+
+/** A RecyclerView for AllApps Search results. */
+public class SearchRecyclerView extends AllAppsRecyclerView {
+    private static final String TAG = "SearchRecyclerView";
+
+    public SearchRecyclerView(Context context) {
+        this(context, null);
+    }
+
+    public SearchRecyclerView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public SearchRecyclerView(Context context, AttributeSet attrs, int defStyleAttr) {
+        this(context, attrs, defStyleAttr, 0);
+    }
+
+    public SearchRecyclerView(Context context, AttributeSet attrs, int defStyleAttr,
+            int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    @Override
+    protected void updatePoolSize() {
+        RecycledViewPool pool = getRecycledViewPool();
+        pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_ICON, mNumAppsPerRow);
+        // TODO(b/206905515): Add maxes for other View types.
+    }
+
+    @Override
+    public boolean supportsFastScrolling() {
+        return false;
+    }
+
+    @Override
+    public RecyclerViewFastScroller getScrollbar() {
+        return null;
+    }
+}