1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Copyright 2018 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.android.pump.fragment;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.pump.R;
import com.android.pump.activity.AudioPlayerActivity;
import com.android.pump.db.Album;
import com.android.pump.db.Artist;
import com.android.pump.db.Audio;
import com.android.pump.db.MediaDb;
import com.android.pump.util.Globals;
import java.util.List;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.UiThread;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.RecyclerView;
@UiThread
public class AudioFragment extends Fragment {
private RecyclerView mRecyclerView;
public static @NonNull Fragment newInstance() {
return new AudioFragment();
}
@Override
public @NonNull View onCreateView(@NonNull LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_audio, container, false);
mRecyclerView = view.findViewById(R.id.fragment_audio_recycler_view);
mRecyclerView.setHasFixedSize(true);
mRecyclerView.setAdapter(new AudioAdapter(requireContext()));
// TODO Enable view caching
//mRecyclerView.setItemViewCacheSize(0);
//mRecyclerView.setRecycledViewPool(Globals.getRecycledViewPool(requireContext()));
return view;
}
private static class AudioAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>
implements MediaDb.UpdateCallback {
private final MediaDb mMediaDb;
private final List<Audio> mAudios; // TODO Use android.support.v7.util.SortedList/android.support.v7.widget.util.SortedListAdapterCallback instead
private AudioAdapter(@NonNull Context context) {
setHasStableIds(true);
mMediaDb = Globals.getMediaDb(context);
mAudios = mMediaDb.getAudios();
}
public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
mMediaDb.addAudioUpdateCallback(this);
}
public void onDetachedFromRecyclerView(@NonNull RecyclerView recyclerView) {
mMediaDb.removeAudioUpdateCallback(this);
}
@Override
public @NonNull RecyclerView.ViewHolder onCreateViewHolder(
@NonNull ViewGroup parent, int viewType) {
if (viewType == R.layout.header) {
return new RecyclerView.ViewHolder(LayoutInflater.from(parent.getContext())
.inflate(viewType, parent, false)) { };
} else {
return new AudioViewHolder(LayoutInflater.from(parent.getContext())
.inflate(viewType, parent, false));
}
}
@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
if (position == 0) {
// TODO Handle header view
} else {
Audio audio = mAudios.get(position - 1);
mMediaDb.loadData(audio); // TODO Where should we call this? In bind()?
((AudioViewHolder) holder).bind(audio);
}
}
@Override
public int getItemCount() {
return mAudios.size() + 1;
}
@Override
public long getItemId(int position) {
return position == 0 ? -1 : mAudios.get(position - 1).getId();
}
@Override
public int getItemViewType(int position) {
return position == 0 ? R.layout.header : R.layout.audio;
}
@Override
public void onItemsInserted(int index, int count) {
notifyItemRangeInserted(index + 1, count);
}
@Override
public void onItemsUpdated(int index, int count) {
notifyItemRangeChanged(index + 1, count);
}
@Override
public void onItemsRemoved(int index, int count) {
notifyItemRangeRemoved(index + 1, count);
}
}
private static class AudioViewHolder extends RecyclerView.ViewHolder {
private AudioViewHolder(@NonNull View itemView) {
super(itemView);
}
private void bind(@NonNull Audio audio) {
ImageView imageView = itemView.findViewById(R.id.audio_image);
TextView titleView = itemView.findViewById(R.id.audio_title);
TextView artistView = itemView.findViewById(R.id.audio_artist);
Album album = audio.getAlbum();
imageView.setImageURI(album == null ? null : album.getAlbumArtUri());
titleView.setText(audio.getTitle());
Artist artist = audio.getArtist();
artistView.setText(artist == null ? null : artist.getName());
itemView.setOnClickListener((view) ->
AudioPlayerActivity.start(view.getContext(), audio));
}
}
}
|
