content: /*
   * Copyright (c) 2015 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.example.android.tvleanback.presenter;
  
  import android.content.res.Resources;
  import android.graphics.Color;
  import androidx.leanback.widget.Presenter;
  import androidx.core.content.ContextCompat;
  import android.view.Gravity;
  import android.view.ViewGroup;
  import android.widget.TextView;
  
  import com.example.android.tvleanback.R;
  import com.example.android.tvleanback.ui.MainFragment;
  
  public class GridItemPresenter extends Presenter {
      private final MainFragment mainFragment;
  
      public GridItemPresenter(MainFragment mainFragment) {
          this.mainFragment = mainFragment;
      }
  
      @Override
      public ViewHolder onCreateViewHolder(ViewGroup parent) {
          TextView view = new TextView(parent.getContext());
  
          Resources res = parent.getResources();
          int width = res.getDimensionPixelSize(R.dimen.grid_item_width);
          int height = res.getDimensionPixelSize(R.dimen.grid_item_height);
  
          view.setLayoutParams(new ViewGroup.LayoutParams(width, height));
          view.setFocusable(true);
          view.setFocusableInTouchMode(true);
          view.setBackgroundColor(ContextCompat.getColor(parent.getContext(),
                  R.color.default_background));
          view.setTextColor(Color.WHITE);
          view.setGravity(Gravity.CENTER);
          return new ViewHolder(view);
      }
  
      @Override
      public void onBindViewHolder(ViewHolder viewHolder, Object item) {
          ((TextView) viewHolder.view).setText((String) item);
      }
  
      @Override
      public void onUnbindViewHolder(ViewHolder viewHolder) {
      }
  }
  