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 
17 package com.example.android.navigationdrawer;
18 
19 import android.content.Context;
20 import android.support.v7.widget.RecyclerView;
21 import android.view.LayoutInflater;
22 import android.view.View;
23 import android.view.ViewGroup;
24 import android.widget.AdapterView;
25 import android.widget.TextView;
26 
27 /**
28  * Adapter for the planet data used in our drawer menu,
29  */
30 public class PlanetAdapter extends RecyclerView.Adapter<PlanetAdapter.ViewHolder> {
31     private String[] mDataset;
32     private OnItemClickListener mListener;
33 
34     /**
35      * Interface for receiving click events from cells.
36      */
37     public interface OnItemClickListener {
onClick(View view, int position)38         public void onClick(View view, int position);
39     }
40 
41     /**
42      * Custom viewholder for our planet views.
43      */
44     public static class ViewHolder extends RecyclerView.ViewHolder {
45         public final TextView mTextView;
46 
ViewHolder(TextView v)47         public ViewHolder(TextView v) {
48             super(v);
49             mTextView = v;
50         }
51     }
52 
PlanetAdapter(String[] myDataset, OnItemClickListener listener)53     public PlanetAdapter(String[] myDataset, OnItemClickListener listener) {
54         mDataset = myDataset;
55         mListener = listener;
56     }
57 
58     @Override
onCreateViewHolder(ViewGroup parent, int viewType)59     public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
60         LayoutInflater vi = LayoutInflater.from(parent.getContext());
61         View v = vi.inflate(R.layout.drawer_list_item, parent, false);
62         TextView tv = (TextView) v.findViewById(android.R.id.text1);
63         return new ViewHolder(tv);
64     }
65 
66     @Override
onBindViewHolder(ViewHolder holder, final int position)67     public void onBindViewHolder(ViewHolder holder, final int position) {
68         holder.mTextView.setText(mDataset[position]);
69         holder.mTextView.setOnClickListener(new View.OnClickListener() {
70             @Override
71             public void onClick(View view) {
72                 mListener.onClick(view, position);
73             }
74         });
75     }
76 
77     @Override
getItemCount()78     public int getItemCount() {
79         return mDataset.length;
80     }
81 }
82