MediaPickerActivity.java revision 6cb8bc92e0ca524a76a6fa3f6814b43ea9a3b30d 
1/*
2 * Copyright (C) 2007 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.android.music;
18
19import com.android.internal.database.SortCursor;
20
21import android.app.ListActivity;
22import android.content.Context;
23import android.content.Intent;
24import android.content.ContentUris;
25import android.database.Cursor;
26import android.media.MediaFile;
27import android.net.Uri;
28import android.os.Bundle;
29import android.os.RemoteException;
30import android.provider.MediaStore;
31import android.view.View;
32import android.view.ViewGroup;
33import android.widget.ImageView;
34import android.widget.ListView;
35import android.widget.SimpleCursorAdapter;
36import android.widget.TextView;
37
38import java.util.ArrayList;
39
40public class MediaPickerActivity extends ListActivity implements MusicUtils.Defs
41{
42
43    public MediaPickerActivity()
44    {
45    }
46
47    /** Called when the activity is first created. */
48    @Override
49    public void onCreate(Bundle icicle)
50    {
51        super.onCreate(icicle);
52
53        mFirstYear = getIntent().getStringExtra("firstyear");
54        mLastYear = getIntent().getStringExtra("lastyear");
55
56        if (mFirstYear == null) {
57            setTitle(R.string.all_title);
58        } else if (mFirstYear.equals(mLastYear)) {
59            setTitle(mFirstYear);
60        } else {
61            setTitle(mFirstYear + "-" + mLastYear);
62        }
63        MusicUtils.bindToService(this);
64        init();
65    }
66
67    @Override
68    public void onDestroy() {
69        MusicUtils.unbindFromService(this);
70        super.onDestroy();
71    }
72
73    public void init() {
74
75        setContentView(R.layout.media_picker_activity);
76
77        MakeCursor();
78        if (null == mCursor || 0 == mCursor.getCount()) {
79            return;
80        }
81
82        PickListAdapter adapter = new PickListAdapter(
83                this,
84                R.layout.track_list_item,
85                mCursor,
86                new String[] {},
87                new int[] {});
88
89        setListAdapter(adapter);
90    }
91
92    @Override
93    protected void onListItemClick(ListView l, View v, int position, long id)
94    {
95        mCursor.moveToPosition(position);
96        String type = mCursor.getString(mCursor.getColumnIndex(MediaStore.Audio.Media.MIME_TYPE));
97
98        String action = getIntent().getAction();
99        if (Intent.ACTION_GET_CONTENT.equals(action)) {
100            Uri uri;
101
102            long mediaId;
103            if (type.startsWith("video")) {
104                uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
105                mediaId = mCursor.getLong(mCursor.getColumnIndex(MediaStore.Video.Media._ID));
106            } else {
107                uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
108                mediaId = mCursor.getLong(mCursor.getColumnIndex(MediaStore.Audio.Media._ID));
109            }
110
111            setResult(RESULT_OK, new Intent().setData(ContentUris.withAppendedId(uri, mediaId)));
112            finish();
113            return;
114        }
115
116        // Need to stop the playbackservice, in case it is busy playing audio
117        // and the user selected a video.
118        if (MusicUtils.sService != null) {
119            try {
120                MusicUtils.sService.stop();
121            } catch (RemoteException ex) {
122            }
123        }
124        Intent intent = new Intent(Intent.ACTION_VIEW);
125        intent.setDataAndType(ContentUris.withAppendedId(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, id), type);
126
127        startActivity(intent);
128    }
129
130    private void MakeCursor() {
131        String[] audiocols = new String[] {
132                MediaStore.Audio.Media._ID,
133                MediaStore.Audio.Media.ARTIST,
134                MediaStore.Audio.Media.ALBUM,
135                MediaStore.Audio.Media.TITLE,
136                MediaStore.Audio.Media.DATA,
137                MediaStore.Audio.Media.MIME_TYPE,
138                MediaStore.Audio.Media.YEAR
139        };
140        String[] videocols = new String[] {
141                MediaStore.Audio.Media._ID,
142                MediaStore.Audio.Media.TITLE,
143                MediaStore.Audio.Media.ARTIST,
144                MediaStore.Audio.Media.ALBUM,
145                MediaStore.Audio.Media.TITLE,
146                MediaStore.Audio.Media.DATA,
147                MediaStore.Audio.Media.MIME_TYPE
148        };
149
150        Cursor[] cs;
151        // Use ArrayList for the moment, since we don't know the size of
152        // Cursor[]. If the length of Corsor[] larger than really used,
153        // a NPE will come up when access the content of Corsor[].
154        ArrayList<Cursor> cList = new ArrayList<Cursor>();
155        Intent intent = getIntent();
156        String type = intent.getType();
157
158        if (mFirstYear != null) {
159            // If mFirstYear is not null, the picker only for audio because
160            // video has no year column.
161            if(type.equals("video/*")) {
162                mCursor = null;
163                return;
164            }
165
166            mWhereClause = MediaStore.Audio.Media.YEAR + ">=" + mFirstYear + " AND " +
167                           MediaStore.Audio.Media.YEAR + "<=" + mLastYear;
168        }
169
170        // If use Cursor[] as before, the Cursor[i] could be null when there is
171        // no video/audio/sdcard. Then a NPE will come up when access the content of the
172        // Array.
173
174        Cursor c;
175        if (type.equals("video/*")) {
176            // Only video.
177            c = MusicUtils.query(this, MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
178                    videocols, null , null, mSortOrder);
179            if (c != null) {
180                cList.add(c);
181            }
182        } else {
183            c = MusicUtils.query(this, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
184                    audiocols, mWhereClause , null, mSortOrder);
185
186            if (c != null) {
187                cList.add(c);
188            }
189
190            if (mFirstYear == null && intent.getType().equals("media/*")) {
191                // video has no year column
192                c = MusicUtils.query(this, MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
193                    videocols, null , null, mSortOrder);
194                if (c != null) {
195                    cList.add(c);
196                }
197            }
198        }
199
200        // Get the ArrayList size.
201        int size = cList.size();
202        if (0 == size) {
203            // If no video/audio/SDCard exist, return.
204            mCursor = null;
205            return;
206        }
207
208        // The size is known now, we're sure each item of Cursor[] is not null.
209        cs = new Cursor[size];
210        cs = cList.toArray(cs);
211        mCursor = new SortCursor(cs, MediaStore.Audio.Media.TITLE);
212    }
213
214    private Cursor mCursor;
215    private String mSortOrder = MediaStore.Audio.Media.TITLE + " COLLATE UNICODE";
216    private String mFirstYear;
217    private String mLastYear;
218    private String mWhereClause;
219
220    class PickListAdapter extends SimpleCursorAdapter {
221        int mTitleIdx;
222        int mArtistIdx;
223        int mAlbumIdx;
224        int mMimeIdx;
225
226        PickListAdapter(Context context, int layout, Cursor cursor, String[] from, int[] to) {
227            super(context, layout, cursor, from, to);
228
229            mTitleIdx = cursor.getColumnIndex(MediaStore.Audio.Media.TITLE);
230            mArtistIdx = cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST);
231            mAlbumIdx = cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM);
232            mMimeIdx = cursor.getColumnIndex(MediaStore.Audio.Media.MIME_TYPE);
233        }
234
235        @Override
236        public View newView(Context context, Cursor cursor, ViewGroup parent) {
237           View v = super.newView(context, cursor, parent);
238           ImageView iv = (ImageView) v.findViewById(R.id.icon);
239           iv.setVisibility(View.VISIBLE);
240           ViewGroup.LayoutParams p = iv.getLayoutParams();
241           p.width = ViewGroup.LayoutParams.WRAP_CONTENT;
242           p.height = ViewGroup.LayoutParams.WRAP_CONTENT;
243
244           TextView tv = (TextView) v.findViewById(R.id.duration);
245           tv.setVisibility(View.GONE);
246           iv = (ImageView) v.findViewById(R.id.play_indicator);
247           iv.setVisibility(View.GONE);
248
249           return v;
250        }
251
252        @Override
253        public void bindView(View view, Context context, Cursor cursor) {
254
255            TextView tv = (TextView) view.findViewById(R.id.line1);
256            String name = cursor.getString(mTitleIdx);
257            tv.setText(name);
258
259            tv = (TextView) view.findViewById(R.id.line2);
260            name = cursor.getString(mAlbumIdx);
261            StringBuilder builder = new StringBuilder();
262            if (name == null || name.equals(MediaFile.UNKNOWN_STRING)) {
263                builder.append(context.getString(R.string.unknown_album_name));
264            } else {
265                builder.append(name);
266            }
267            builder.append("\n");
268            name = cursor.getString(mArtistIdx);
269            if (name == null || name.equals(MediaFile.UNKNOWN_STRING)) {
270                builder.append(context.getString(R.string.unknown_artist_name));
271            } else {
272                builder.append(name);
273            }
274            tv.setText(builder.toString());
275
276            String text = cursor.getString(mMimeIdx);
277            ImageView iv = (ImageView) view.findViewById(R.id.icon);;
278            if("audio/midi".equals(text)) {
279                iv.setImageResource(R.drawable.midi);
280            } else if(text != null && (text.startsWith("audio") ||
281                    text.equals("application/ogg") ||
282                    text.equals("application/x-ogg"))) {
283                iv.setImageResource(R.drawable.ic_search_category_music_song);
284            } else if(text != null && text.startsWith("video")) {
285                iv.setImageResource(R.drawable.movie);
286            } else {
287                iv.setImageResource(0);
288            }
289        }
290    }
291}
292