Clean code

app/src/leanback/java/com/fongmi/android/tv/ui/custom/CustomKeyboard.java

@@ -2,8 +2,6 @@ package com.fongmi.android.tv.ui.custom;
 
 import android.annotation.SuppressLint;
 
-import androidx.recyclerview.widget.GridLayoutManager;
-
 import com.fongmi.android.tv.R;
 import com.fongmi.android.tv.databinding.ActivitySearchBinding;
 import com.fongmi.android.tv.ui.adapter.KeyboardAdapter;
@@ -22,7 +20,6 @@ public class CustomKeyboard implements KeyboardAdapter.OnClickListener {
 
     private void initView() {
         binding.keyboard.setHasFixedSize(true);
-        binding.keyboard.setLayoutManager(new GridLayoutManager(binding.getRoot().getContext(), 10));
         binding.keyboard.addItemDecoration(new SpaceItemDecoration(10, 8));
         binding.keyboard.setAdapter(new KeyboardAdapter(this));
     }

app/src/leanback/res/layout/activity_search.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:keepScreenOn="true">
@@ -51,7 +52,11 @@
             android:layout_toEndOf="@+id/word"
             android:clipChildren="false"
             android:clipToPadding="false"
-            android:padding="12dp" />
+            android:padding="12dp"
+            app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
+            app:spanCount="10"
+            tools:itemCount="40"
+            tools:listitem="@layout/adapter_keyboard_text" />
 
         <LinearLayout
             android:layout_width="wrap_content"