1 /*
2  * Copyright (C) 2019 The Android Open Source Project.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.car.themeplayground;
18 
19 import android.view.LayoutInflater;
20 import android.view.View;
21 import android.view.ViewGroup;
22 import android.widget.TextView;
23 
24 import androidx.annotation.NonNull;
25 import androidx.recyclerview.widget.RecyclerView;
26 
27 import java.util.ArrayList;
28 
29 /**
30  * Implementation of {@link RecyclerViewAdapter} that can be used with RecyclerViews.
31  */
32 public class RecyclerViewAdapter extends
33         RecyclerView.Adapter<RecyclerViewAdapter.RecyclerViewHolder> {
34 
35     private ArrayList<String> mData;
36 
RecyclerViewAdapter(ArrayList<String> data)37     RecyclerViewAdapter(ArrayList<String> data) {
38         this.mData = data;
39     }
40 
41     @NonNull
42     @Override
onCreateViewHolder(@onNull ViewGroup parent, int viewType)43     public RecyclerViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
44         LayoutInflater inflator = LayoutInflater.from(parent.getContext());
45         View view = inflator.inflate(R.layout.item_list, parent, false);
46         return new RecyclerViewHolder(view);
47     }
48 
49     @Override
onBindViewHolder(@onNull RecyclerViewHolder holder, int position)50     public void onBindViewHolder(@NonNull RecyclerViewHolder holder, int position) {
51         String title = mData.get(position);
52         holder.mTextTitle.setText(title);
53     }
54 
55     @Override
getItemCount()56     public int getItemCount() {
57         return mData.size();
58     }
59 
60 
61     /**
62      * Holds views for each element in the list.
63      */
64     public static class RecyclerViewHolder extends RecyclerView.ViewHolder {
65         TextView mTextTitle;
66 
RecyclerViewHolder(@onNull View itemView)67         RecyclerViewHolder(@NonNull View itemView) {
68             super(itemView);
69             mTextTitle = itemView.findViewById(R.id.textTitle);
70         }
71     }
72 }
73