1/*
2* Copyright (C) 2014 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
17package com.example.android.recyclerview;
18
19import com.example.android.common.logger.Log;
20
21import android.support.v7.widget.RecyclerView;
22import android.view.LayoutInflater;
23import android.view.View;
24import android.view.ViewGroup;
25import android.widget.TextView;
26
27/**
28 * Provide views to RecyclerView with data from mDataSet.
29 */
30public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.ViewHolder> {
31    private static final String TAG = "CustomAdapter";
32
33    private String[] mDataSet;
34
35    // BEGIN_INCLUDE(recyclerViewSampleViewHolder)
36    /**
37     * Provide a reference to the type of views that you are using (custom ViewHolder)
38     */
39    public static class ViewHolder extends RecyclerView.ViewHolder {
40        private final TextView textView;
41
42        public ViewHolder(View v) {
43            super(v);
44            // Define click listener for the ViewHolder's View.
45            v.setOnClickListener(new View.OnClickListener() {
46                @Override
47                public void onClick(View v) {
48                    Log.d(TAG, "Element " + getPosition() + " clicked.");
49                }
50            });
51            textView = (TextView) v.findViewById(R.id.textView);
52        }
53
54        public TextView getTextView() {
55            return textView;
56        }
57    }
58    // END_INCLUDE(recyclerViewSampleViewHolder)
59
60    /**
61     * Initialize the dataset of the Adapter.
62     *
63     * @param dataSet String[] containing the data to populate views to be used by RecyclerView.
64     */
65    public CustomAdapter(String[] dataSet) {
66        mDataSet = dataSet;
67    }
68
69    // BEGIN_INCLUDE(recyclerViewOnCreateViewHolder)
70    // Create new views (invoked by the layout manager)
71    @Override
72    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
73        // Create a new view.
74        View v = LayoutInflater.from(viewGroup.getContext())
75                .inflate(R.layout.text_row_item, viewGroup, false);
76
77        return new ViewHolder(v);
78    }
79    // END_INCLUDE(recyclerViewOnCreateViewHolder)
80
81    // BEGIN_INCLUDE(recyclerViewOnBindViewHolder)
82    // Replace the contents of a view (invoked by the layout manager)
83    @Override
84    public void onBindViewHolder(ViewHolder viewHolder, final int position) {
85        Log.d(TAG, "Element " + position + " set.");
86
87        // Get element from your dataset at this position and replace the contents of the view
88        // with that element
89        viewHolder.getTextView().setText(mDataSet[position]);
90    }
91    // END_INCLUDE(recyclerViewOnBindViewHolder)
92
93    // Return the size of your dataset (invoked by the layout manager)
94    @Override
95    public int getItemCount() {
96        return mDataSet.length;
97    }
98}
99