content: /*
   * Copyright 2016, 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.testing.espresso.RecyclerViewSample;
  
  import android.app.Activity;
  import android.os.Bundle;
  import androidx.recyclerview.widget.LinearLayoutManager;
  import androidx.recyclerview.widget.RecyclerView;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * Shows a list using a RecyclerView.
   */
  public class MainActivity extends Activity {
  
      private static final int DATASET_COUNT = 50;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          // Create a RecyclerView, a LayoutManager, a data Adapter and wire everything up.
          RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
  
          LinearLayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
          recyclerView.setLayoutManager(layoutManager);
  
          List<String> dataSet = new ArrayList<>(DATASET_COUNT);
          for (int i = 0; i < DATASET_COUNT; i++) {
              dataSet.add(getString(R.string.item_element_text) + i);
          }
          CustomAdapter adapter = new CustomAdapter(dataSet, getApplicationContext());
          recyclerView.setAdapter(adapter);
      }
  }
  