The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 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 | |
| 17 | package com.android.music; |
| 18 | |
| 19 | import android.app.ListActivity; |
| 20 | import android.app.SearchManager; |
| 21 | import android.content.AsyncQueryHandler; |
| 22 | import android.content.BroadcastReceiver; |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 23 | import android.content.ComponentName; |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 24 | import android.content.ContentResolver; |
| 25 | import android.content.Context; |
| 26 | import android.content.Intent; |
| 27 | import android.content.IntentFilter; |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 28 | import android.content.ServiceConnection; |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 29 | |
| 30 | import android.database.Cursor; |
| 31 | import android.database.DatabaseUtils; |
| 32 | import android.media.AudioManager; |
| 33 | import android.media.MediaFile; |
| 34 | import android.net.Uri; |
| 35 | import android.os.Bundle; |
| 36 | import android.os.Handler; |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 37 | import android.os.IBinder; |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 38 | import android.os.Message; |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 39 | import android.provider.BaseColumns; |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 40 | import android.provider.MediaStore; |
| 41 | import android.text.TextUtils; |
| 42 | import android.util.Log; |
| 43 | import android.view.KeyEvent; |
| 44 | import android.view.MenuItem; |
| 45 | import android.view.View; |
| 46 | import android.view.ViewGroup; |
| 47 | import android.view.Window; |
| 48 | import android.view.ViewGroup.OnHierarchyChangeListener; |
| 49 | import android.widget.ImageView; |
| 50 | import android.widget.ListView; |
| 51 | import android.widget.SimpleCursorAdapter; |
| 52 | import android.widget.TextView; |
| 53 | |
| 54 | import java.util.ArrayList; |
| 55 | |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 56 | public class QueryBrowserActivity extends ListActivity |
| 57 | implements MusicUtils.Defs, ServiceConnection |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 58 | { |
| 59 | private final static int PLAY_NOW = 0; |
| 60 | private final static int ADD_TO_QUEUE = 1; |
| 61 | private final static int PLAY_NEXT = 2; |
| 62 | private final static int PLAY_ARTIST = 3; |
| 63 | private final static int EXPLORE_ARTIST = 4; |
| 64 | private final static int PLAY_ALBUM = 5; |
| 65 | private final static int EXPLORE_ALBUM = 6; |
| 66 | private final static int REQUERY = 3; |
| 67 | private QueryListAdapter mAdapter; |
| 68 | private boolean mAdapterSent; |
| 69 | private String mFilterString = ""; |
| 70 | |
| 71 | public QueryBrowserActivity() |
| 72 | { |
| 73 | } |
| 74 | |
| 75 | /** Called when the activity is first created. */ |
| 76 | @Override |
| 77 | public void onCreate(Bundle icicle) |
| 78 | { |
| 79 | super.onCreate(icicle); |
| 80 | setVolumeControlStream(AudioManager.STREAM_MUSIC); |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 81 | mAdapter = (QueryListAdapter) getLastNonConfigurationInstance(); |
| 82 | MusicUtils.bindToService(this, this); |
| 83 | // defer the real work until we're bound to the service |
| 84 | } |
| 85 | |
| 86 | |
| 87 | public void onServiceConnected(ComponentName name, IBinder service) { |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 88 | IntentFilter f = new IntentFilter(); |
| 89 | f.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); |
| 90 | f.addAction(Intent.ACTION_MEDIA_UNMOUNTED); |
| 91 | f.addDataScheme("file"); |
| 92 | registerReceiver(mScanListener, f); |
| 93 | |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 94 | Intent intent = getIntent(); |
| 95 | |
| 96 | if (intent.getAction().equals(Intent.ACTION_VIEW)) { |
| 97 | // this is something we got from the search bar |
| 98 | Uri uri = intent.getData(); |
| 99 | String path = uri.toString(); |
| 100 | if (path.startsWith("content://media/external/audio/media/")) { |
| 101 | // This is a specific file |
| 102 | String id = uri.getLastPathSegment(); |
| 103 | int [] list = new int[] { Integer.valueOf(id) }; |
| 104 | MusicUtils.playAll(this, list, 0); |
| 105 | finish(); |
| 106 | return; |
| 107 | } else if (path.startsWith("content://media/external/audio/albums/")) { |
| 108 | // This is an album, show the songs on it |
| 109 | Intent i = new Intent(Intent.ACTION_PICK); |
| 110 | i.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/track"); |
| 111 | i.putExtra("album", uri.getLastPathSegment()); |
| 112 | startActivity(i); |
| 113 | finish(); |
| 114 | return; |
| 115 | } else if (path.startsWith("content://media/external/audio/artists/")) { |
| 116 | // This is an artist, show the albums for that artist |
| 117 | Intent i = new Intent(Intent.ACTION_PICK); |
| 118 | i.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/album"); |
| 119 | i.putExtra("artist", uri.getLastPathSegment()); |
| 120 | startActivity(i); |
| 121 | finish(); |
| 122 | return; |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 123 | } |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 124 | } |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 125 | mFilterString = intent.getStringExtra(SearchManager.QUERY); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 126 | |
| 127 | setContentView(R.layout.query_activity); |
| 128 | mTrackList = getListView(); |
| 129 | mTrackList.setTextFilterEnabled(true); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 130 | if (mAdapter == null) { |
| 131 | mAdapter = new QueryListAdapter( |
| 132 | getApplication(), |
| 133 | this, |
| 134 | R.layout.track_list_item, |
| 135 | null, // cursor |
| 136 | new String[] {}, |
| 137 | new int[] {}); |
| 138 | setListAdapter(mAdapter); |
| 139 | if (TextUtils.isEmpty(mFilterString)) { |
| 140 | getQueryCursor(mAdapter.getQueryHandler(), null); |
| 141 | } else { |
| 142 | mTrackList.setFilterText(mFilterString); |
| 143 | mFilterString = null; |
| 144 | } |
| 145 | } else { |
| 146 | mAdapter.setActivity(this); |
| 147 | setListAdapter(mAdapter); |
| 148 | mQueryCursor = mAdapter.getCursor(); |
| 149 | if (mQueryCursor != null) { |
| 150 | init(mQueryCursor); |
| 151 | } else { |
| 152 | getQueryCursor(mAdapter.getQueryHandler(), mFilterString); |
| 153 | } |
| 154 | } |
| 155 | } |
Marco Nelissen | 3fdd97f | 2009-05-05 15:57:19 -0700 | [diff] [blame^] | 156 | |
| 157 | public void onServiceDisconnected(ComponentName name) { |
| 158 | |
| 159 | } |
| 160 | |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 161 | @Override |
| 162 | public Object onRetainNonConfigurationInstance() { |
| 163 | mAdapterSent = true; |
| 164 | return mAdapter; |
| 165 | } |
| 166 | |
| 167 | @Override |
| 168 | public void onPause() { |
| 169 | mReScanHandler.removeCallbacksAndMessages(null); |
| 170 | super.onPause(); |
| 171 | } |
| 172 | |
| 173 | @Override |
| 174 | public void onDestroy() { |
| 175 | MusicUtils.unbindFromService(this); |
| 176 | unregisterReceiver(mScanListener); |
| 177 | super.onDestroy(); |
| 178 | if (!mAdapterSent && mAdapter != null) { |
| 179 | Cursor c = mAdapter.getCursor(); |
| 180 | if (c != null) { |
| 181 | c.close(); |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | /* |
| 187 | * This listener gets called when the media scanner starts up, and when the |
| 188 | * sd card is unmounted. |
| 189 | */ |
| 190 | private BroadcastReceiver mScanListener = new BroadcastReceiver() { |
| 191 | @Override |
| 192 | public void onReceive(Context context, Intent intent) { |
| 193 | MusicUtils.setSpinnerState(QueryBrowserActivity.this); |
| 194 | mReScanHandler.sendEmptyMessage(0); |
| 195 | } |
| 196 | }; |
| 197 | |
| 198 | private Handler mReScanHandler = new Handler() { |
| 199 | @Override |
| 200 | public void handleMessage(Message msg) { |
| 201 | getQueryCursor(mAdapter.getQueryHandler(), null); |
| 202 | // if the query results in a null cursor, onQueryComplete() will |
| 203 | // call init(), which will post a delayed message to this handler |
| 204 | // in order to try again. |
| 205 | } |
| 206 | }; |
| 207 | |
| 208 | @Override |
| 209 | protected void onActivityResult(int requestCode, int resultCode, Intent intent) { |
| 210 | switch (requestCode) { |
| 211 | case SCAN_DONE: |
| 212 | if (resultCode == RESULT_CANCELED) { |
| 213 | finish(); |
| 214 | } else { |
| 215 | getQueryCursor(mAdapter.getQueryHandler(), null); |
| 216 | } |
| 217 | break; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | public void init(Cursor c) { |
| 222 | |
| 223 | mAdapter.changeCursor(c); |
| 224 | |
| 225 | if (mQueryCursor == null) { |
| 226 | MusicUtils.displayDatabaseError(this); |
| 227 | setListAdapter(null); |
| 228 | mReScanHandler.sendEmptyMessageDelayed(0, 1000); |
| 229 | return; |
| 230 | } |
| 231 | MusicUtils.hideDatabaseError(this); |
| 232 | } |
| 233 | |
| 234 | @Override |
| 235 | protected void onListItemClick(ListView l, View v, int position, long id) |
| 236 | { |
| 237 | // Dialog doesn't allow us to wait for a result, so we need to store |
| 238 | // the info we need for when the dialog posts its result |
| 239 | mQueryCursor.moveToPosition(position); |
| 240 | if (mQueryCursor.isBeforeFirst() || mQueryCursor.isAfterLast()) { |
| 241 | return; |
| 242 | } |
| 243 | String selectedType = mQueryCursor.getString(mQueryCursor.getColumnIndexOrThrow( |
| 244 | MediaStore.Audio.Media.MIME_TYPE)); |
| 245 | |
| 246 | if ("artist".equals(selectedType)) { |
| 247 | Intent intent = new Intent(Intent.ACTION_PICK); |
| 248 | intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/album"); |
| 249 | intent.putExtra("artist", Long.valueOf(id).toString()); |
| 250 | startActivity(intent); |
| 251 | } else if ("album".equals(selectedType)) { |
| 252 | Intent intent = new Intent(Intent.ACTION_PICK); |
| 253 | intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/track"); |
| 254 | intent.putExtra("album", Long.valueOf(id).toString()); |
| 255 | startActivity(intent); |
| 256 | } else if (position >= 0 && id >= 0){ |
| 257 | int [] list = new int[] { (int) id }; |
| 258 | MusicUtils.playAll(this, list, 0); |
| 259 | } else { |
| 260 | Log.e("QueryBrowser", "invalid position/id: " + position + "/" + id); |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | @Override |
| 265 | public boolean onOptionsItemSelected(MenuItem item) { |
| 266 | switch (item.getItemId()) { |
| 267 | case USE_AS_RINGTONE: { |
| 268 | // Set the system setting to make this the current ringtone |
| 269 | MusicUtils.setRingtone(this, mTrackList.getSelectedItemId()); |
| 270 | return true; |
| 271 | } |
| 272 | |
| 273 | } |
| 274 | return super.onOptionsItemSelected(item); |
| 275 | } |
| 276 | |
| 277 | private Cursor getQueryCursor(AsyncQueryHandler async, String filter) { |
| 278 | if (filter == null) { |
| 279 | filter = ""; |
| 280 | } |
| 281 | String[] ccols = new String[] { |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 282 | BaseColumns._ID, // this will be the artist, album or track ID |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 283 | MediaStore.Audio.Media.MIME_TYPE, // mimetype of audio file, or "artist" or "album" |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 284 | MediaStore.Audio.Artists.ARTIST, |
| 285 | MediaStore.Audio.Albums.ALBUM, |
| 286 | MediaStore.Audio.Media.TITLE, |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 287 | "data1", |
| 288 | "data2" |
| 289 | }; |
| 290 | |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 291 | Uri search = Uri.parse("content://media/external/audio/search/fancy/" + |
| 292 | Uri.encode(filter)); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 293 | |
| 294 | Cursor ret = null; |
| 295 | if (async != null) { |
| 296 | async.startQuery(0, null, search, ccols, null, null, null); |
| 297 | } else { |
| 298 | ret = MusicUtils.query(this, search, ccols, null, null, null); |
| 299 | } |
| 300 | return ret; |
| 301 | } |
| 302 | |
| 303 | static class QueryListAdapter extends SimpleCursorAdapter { |
| 304 | private QueryBrowserActivity mActivity = null; |
| 305 | private AsyncQueryHandler mQueryHandler; |
| 306 | private String mConstraint = null; |
| 307 | private boolean mConstraintIsValid = false; |
| 308 | |
| 309 | class QueryHandler extends AsyncQueryHandler { |
| 310 | QueryHandler(ContentResolver res) { |
| 311 | super(res); |
| 312 | } |
| 313 | |
| 314 | @Override |
| 315 | protected void onQueryComplete(int token, Object cookie, Cursor cursor) { |
| 316 | mActivity.init(cursor); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | QueryListAdapter(Context context, QueryBrowserActivity currentactivity, |
| 321 | int layout, Cursor cursor, String[] from, int[] to) { |
| 322 | super(context, layout, cursor, from, to); |
| 323 | mActivity = currentactivity; |
| 324 | mQueryHandler = new QueryHandler(context.getContentResolver()); |
| 325 | } |
| 326 | |
| 327 | public void setActivity(QueryBrowserActivity newactivity) { |
| 328 | mActivity = newactivity; |
| 329 | } |
| 330 | |
| 331 | public AsyncQueryHandler getQueryHandler() { |
| 332 | return mQueryHandler; |
| 333 | } |
| 334 | |
| 335 | @Override |
| 336 | public void bindView(View view, Context context, Cursor cursor) { |
| 337 | |
| 338 | TextView tv1 = (TextView) view.findViewById(R.id.line1); |
| 339 | TextView tv2 = (TextView) view.findViewById(R.id.line2); |
| 340 | ImageView iv = (ImageView) view.findViewById(R.id.icon); |
| 341 | ViewGroup.LayoutParams p = iv.getLayoutParams(); |
| 342 | if (p == null) { |
| 343 | // seen this happen, not sure why |
| 344 | DatabaseUtils.dumpCursor(cursor); |
| 345 | return; |
| 346 | } |
| 347 | p.width = ViewGroup.LayoutParams.WRAP_CONTENT; |
| 348 | p.height = ViewGroup.LayoutParams.WRAP_CONTENT; |
| 349 | |
| 350 | String mimetype = cursor.getString(cursor.getColumnIndexOrThrow( |
| 351 | MediaStore.Audio.Media.MIME_TYPE)); |
| 352 | |
| 353 | if (mimetype == null) { |
| 354 | mimetype = "audio/"; |
| 355 | } |
| 356 | if (mimetype.equals("artist")) { |
| 357 | iv.setImageResource(R.drawable.ic_mp_artist_list); |
| 358 | String name = cursor.getString(cursor.getColumnIndexOrThrow( |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 359 | MediaStore.Audio.Artists.ARTIST)); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 360 | String displayname = name; |
The Android Open Source Project | 6a9c41c | 2009-03-09 11:52:14 -0700 | [diff] [blame] | 361 | boolean isunknown = false; |
| 362 | if (name == null || name.equals(MediaFile.UNKNOWN_STRING)) { |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 363 | displayname = context.getString(R.string.unknown_artist_name); |
The Android Open Source Project | 6a9c41c | 2009-03-09 11:52:14 -0700 | [diff] [blame] | 364 | isunknown = true; |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 365 | } |
| 366 | tv1.setText(displayname); |
| 367 | |
| 368 | int numalbums = cursor.getInt(cursor.getColumnIndexOrThrow("data1")); |
| 369 | int numsongs = cursor.getInt(cursor.getColumnIndexOrThrow("data2")); |
| 370 | |
| 371 | String songs_albums = MusicUtils.makeAlbumsSongsLabel(context, |
The Android Open Source Project | 6a9c41c | 2009-03-09 11:52:14 -0700 | [diff] [blame] | 372 | numalbums, numsongs, isunknown); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 373 | |
| 374 | tv2.setText(songs_albums); |
| 375 | |
| 376 | } else if (mimetype.equals("album")) { |
| 377 | iv.setImageResource(R.drawable.albumart_mp_unknown_list); |
| 378 | String name = cursor.getString(cursor.getColumnIndexOrThrow( |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 379 | MediaStore.Audio.Albums.ALBUM)); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 380 | String displayname = name; |
The Android Open Source Project | 6a9c41c | 2009-03-09 11:52:14 -0700 | [diff] [blame] | 381 | if (name == null || name.equals(MediaFile.UNKNOWN_STRING)) { |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 382 | displayname = context.getString(R.string.unknown_album_name); |
| 383 | } |
| 384 | tv1.setText(displayname); |
| 385 | |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 386 | name = cursor.getString(cursor.getColumnIndexOrThrow( |
| 387 | MediaStore.Audio.Artists.ARTIST)); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 388 | displayname = name; |
The Android Open Source Project | 6a9c41c | 2009-03-09 11:52:14 -0700 | [diff] [blame] | 389 | if (name == null || name.equals(MediaFile.UNKNOWN_STRING)) { |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 390 | displayname = context.getString(R.string.unknown_artist_name); |
| 391 | } |
| 392 | tv2.setText(displayname); |
| 393 | |
| 394 | } else if(mimetype.startsWith("audio/") || |
| 395 | mimetype.equals("application/ogg") || |
| 396 | mimetype.equals("application/x-ogg")) { |
| 397 | iv.setImageResource(R.drawable.ic_mp_song_list); |
| 398 | String name = cursor.getString(cursor.getColumnIndexOrThrow( |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 399 | MediaStore.Audio.Media.TITLE)); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 400 | tv1.setText(name); |
| 401 | |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 402 | String displayname = cursor.getString(cursor.getColumnIndexOrThrow( |
| 403 | MediaStore.Audio.Artists.ARTIST)); |
| 404 | if (displayname == null || displayname.equals(MediaFile.UNKNOWN_STRING)) { |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 405 | displayname = context.getString(R.string.unknown_artist_name); |
| 406 | } |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 407 | name = cursor.getString(cursor.getColumnIndexOrThrow( |
| 408 | MediaStore.Audio.Albums.ALBUM)); |
The Android Open Source Project | 6a9c41c | 2009-03-09 11:52:14 -0700 | [diff] [blame] | 409 | if (name == null || name.equals(MediaFile.UNKNOWN_STRING)) { |
Marco Nelissen | 1968e38 | 2009-05-01 09:06:07 -0700 | [diff] [blame] | 410 | name = context.getString(R.string.unknown_album_name); |
The Android Open Source Project | 792a220 | 2009-03-03 19:32:30 -0800 | [diff] [blame] | 411 | } |
| 412 | tv2.setText(displayname + " - " + name); |
| 413 | } |
| 414 | } |
| 415 | @Override |
| 416 | public void changeCursor(Cursor cursor) { |
| 417 | if (cursor != mActivity.mQueryCursor) { |
| 418 | mActivity.mQueryCursor = cursor; |
| 419 | super.changeCursor(cursor); |
| 420 | } |
| 421 | } |
| 422 | @Override |
| 423 | public Cursor runQueryOnBackgroundThread(CharSequence constraint) { |
| 424 | String s = constraint.toString(); |
| 425 | if (mConstraintIsValid && ( |
| 426 | (s == null && mConstraint == null) || |
| 427 | (s != null && s.equals(mConstraint)))) { |
| 428 | return getCursor(); |
| 429 | } |
| 430 | Cursor c = mActivity.getQueryCursor(null, s); |
| 431 | mConstraint = s; |
| 432 | mConstraintIsValid = true; |
| 433 | return c; |
| 434 | } |
| 435 | } |
| 436 | |
| 437 | private ListView mTrackList; |
| 438 | private Cursor mQueryCursor; |
| 439 | } |
| 440 | |