arangelov | b0802dc | 2019-10-18 18:03:44 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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.internal.app; |
| 18 | |
| 19 | import static com.android.internal.app.ChooserActivity.TARGET_TYPE_SHORTCUTS_FROM_PREDICTION_SERVICE; |
| 20 | import static com.android.internal.app.ChooserActivity.TARGET_TYPE_SHORTCUTS_FROM_SHORTCUT_MANAGER; |
| 21 | |
| 22 | import android.app.ActivityManager; |
| 23 | import android.content.ComponentName; |
| 24 | import android.content.Context; |
| 25 | import android.content.Intent; |
| 26 | import android.content.pm.ActivityInfo; |
| 27 | import android.content.pm.LabeledIntent; |
| 28 | import android.content.pm.PackageManager; |
| 29 | import android.content.pm.ResolveInfo; |
| 30 | import android.os.AsyncTask; |
| 31 | import android.os.UserManager; |
| 32 | import android.service.chooser.ChooserTarget; |
| 33 | import android.util.Log; |
| 34 | import android.view.View; |
| 35 | import android.view.ViewGroup; |
| 36 | |
| 37 | import com.android.internal.R; |
| 38 | import com.android.internal.app.ResolverActivity.ResolvedComponentInfo; |
| 39 | import com.android.internal.app.chooser.ChooserTargetInfo; |
| 40 | import com.android.internal.app.chooser.DisplayResolveInfo; |
| 41 | import com.android.internal.app.chooser.SelectableTargetInfo; |
| 42 | import com.android.internal.app.chooser.TargetInfo; |
| 43 | |
| 44 | import java.util.ArrayList; |
| 45 | import java.util.Collections; |
| 46 | import java.util.List; |
| 47 | |
| 48 | public class ChooserListAdapter extends ResolverListAdapter { |
| 49 | private static final String TAG = "ChooserListAdapter"; |
| 50 | private static final boolean DEBUG = false; |
| 51 | |
Zhen Zhang | bde7b46 | 2019-11-11 11:49:33 -0800 | [diff] [blame] | 52 | public static final int NO_POSITION = -1; |
arangelov | b0802dc | 2019-10-18 18:03:44 +0100 | [diff] [blame] | 53 | public static final int TARGET_BAD = -1; |
| 54 | public static final int TARGET_CALLER = 0; |
| 55 | public static final int TARGET_SERVICE = 1; |
| 56 | public static final int TARGET_STANDARD = 2; |
| 57 | public static final int TARGET_STANDARD_AZ = 3; |
| 58 | |
| 59 | private static final int MAX_SUGGESTED_APP_TARGETS = 4; |
| 60 | private static final int MAX_CHOOSER_TARGETS_PER_APP = 2; |
| 61 | |
| 62 | static final int MAX_SERVICE_TARGETS = 8; |
| 63 | |
| 64 | /** {@link #getBaseScore} */ |
| 65 | public static final float CALLER_TARGET_SCORE_BOOST = 900.f; |
| 66 | /** {@link #getBaseScore} */ |
| 67 | public static final float SHORTCUT_TARGET_SCORE_BOOST = 90.f; |
| 68 | |
| 69 | private final int mMaxShortcutTargetsPerApp; |
| 70 | private final ChooserListCommunicator mChooserListCommunicator; |
| 71 | private final SelectableTargetInfo.SelectableTargetInfoCommunicator |
| 72 | mSelectableTargetInfoComunicator; |
| 73 | |
| 74 | private int mNumShortcutResults = 0; |
| 75 | |
| 76 | // Reserve spots for incoming direct share targets by adding placeholders |
| 77 | private ChooserTargetInfo |
| 78 | mPlaceHolderTargetInfo = new ChooserActivity.PlaceHolderTargetInfo(); |
| 79 | private final List<ChooserTargetInfo> mServiceTargets = new ArrayList<>(); |
| 80 | private final List<TargetInfo> mCallerTargets = new ArrayList<>(); |
| 81 | |
| 82 | private final ChooserActivity.BaseChooserTargetComparator mBaseTargetComparator = |
| 83 | new ChooserActivity.BaseChooserTargetComparator(); |
| 84 | private boolean mListViewDataChanged = false; |
| 85 | |
| 86 | // Sorted list of DisplayResolveInfos for the alphabetical app section. |
| 87 | private List<DisplayResolveInfo> mSortedList = new ArrayList<>(); |
| 88 | |
| 89 | public ChooserListAdapter(Context context, List<Intent> payloadIntents, |
| 90 | Intent[] initialIntents, List<ResolveInfo> rList, |
| 91 | boolean filterLastUsed, ResolverListController resolverListController, |
| 92 | boolean useLayoutForBrowsables, |
| 93 | ChooserListCommunicator chooserListCommunicator, |
| 94 | SelectableTargetInfo.SelectableTargetInfoCommunicator selectableTargetInfoComunicator) { |
| 95 | // Don't send the initial intents through the shared ResolverActivity path, |
| 96 | // we want to separate them into a different section. |
| 97 | super(context, payloadIntents, null, rList, filterLastUsed, |
| 98 | resolverListController, useLayoutForBrowsables, |
Paul McLean | 07425c8 | 2019-10-18 12:00:11 -0600 | [diff] [blame] | 99 | chooserListCommunicator, false); |
arangelov | b0802dc | 2019-10-18 18:03:44 +0100 | [diff] [blame] | 100 | |
| 101 | createPlaceHolders(); |
| 102 | mMaxShortcutTargetsPerApp = |
| 103 | context.getResources().getInteger(R.integer.config_maxShortcutTargetsPerApp); |
| 104 | mChooserListCommunicator = chooserListCommunicator; |
| 105 | mSelectableTargetInfoComunicator = selectableTargetInfoComunicator; |
| 106 | |
| 107 | if (initialIntents != null) { |
| 108 | final PackageManager pm = context.getPackageManager(); |
| 109 | for (int i = 0; i < initialIntents.length; i++) { |
| 110 | final Intent ii = initialIntents[i]; |
| 111 | if (ii == null) { |
| 112 | continue; |
| 113 | } |
| 114 | |
| 115 | // We reimplement Intent#resolveActivityInfo here because if we have an |
| 116 | // implicit intent, we want the ResolveInfo returned by PackageManager |
| 117 | // instead of one we reconstruct ourselves. The ResolveInfo returned might |
| 118 | // have extra metadata and resolvePackageName set and we want to respect that. |
| 119 | ResolveInfo ri = null; |
| 120 | ActivityInfo ai = null; |
| 121 | final ComponentName cn = ii.getComponent(); |
| 122 | if (cn != null) { |
| 123 | try { |
| 124 | ai = pm.getActivityInfo(ii.getComponent(), 0); |
| 125 | ri = new ResolveInfo(); |
| 126 | ri.activityInfo = ai; |
| 127 | } catch (PackageManager.NameNotFoundException ignored) { |
| 128 | // ai will == null below |
| 129 | } |
| 130 | } |
| 131 | if (ai == null) { |
| 132 | ri = pm.resolveActivity(ii, PackageManager.MATCH_DEFAULT_ONLY); |
| 133 | ai = ri != null ? ri.activityInfo : null; |
| 134 | } |
| 135 | if (ai == null) { |
| 136 | Log.w(TAG, "No activity found for " + ii); |
| 137 | continue; |
| 138 | } |
| 139 | UserManager userManager = |
| 140 | (UserManager) context.getSystemService(Context.USER_SERVICE); |
| 141 | if (ii instanceof LabeledIntent) { |
| 142 | LabeledIntent li = (LabeledIntent) ii; |
| 143 | ri.resolvePackageName = li.getSourcePackage(); |
| 144 | ri.labelRes = li.getLabelResource(); |
| 145 | ri.nonLocalizedLabel = li.getNonLocalizedLabel(); |
| 146 | ri.icon = li.getIconResource(); |
| 147 | ri.iconResourceId = ri.icon; |
| 148 | } |
| 149 | if (userManager.isManagedProfile()) { |
| 150 | ri.noResourceId = true; |
| 151 | ri.icon = 0; |
| 152 | } |
| 153 | mCallerTargets.add(new DisplayResolveInfo(ii, ri, ii, makePresentationGetter(ri))); |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public void handlePackagesChanged() { |
| 160 | if (DEBUG) { |
| 161 | Log.d(TAG, "clearing queryTargets on package change"); |
| 162 | } |
| 163 | createPlaceHolders(); |
| 164 | mChooserListCommunicator.onHandlePackagesChanged(); |
| 165 | |
| 166 | } |
| 167 | |
| 168 | @Override |
| 169 | public void notifyDataSetChanged() { |
| 170 | if (!mListViewDataChanged) { |
| 171 | mChooserListCommunicator.sendListViewUpdateMessage(); |
| 172 | mListViewDataChanged = true; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | void refreshListView() { |
| 177 | if (mListViewDataChanged) { |
| 178 | super.notifyDataSetChanged(); |
| 179 | } |
| 180 | mListViewDataChanged = false; |
| 181 | } |
| 182 | |
| 183 | |
| 184 | private void createPlaceHolders() { |
| 185 | mNumShortcutResults = 0; |
| 186 | mServiceTargets.clear(); |
| 187 | for (int i = 0; i < MAX_SERVICE_TARGETS; i++) { |
| 188 | mServiceTargets.add(mPlaceHolderTargetInfo); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | @Override |
Zhen Zhang | bde7b46 | 2019-11-11 11:49:33 -0800 | [diff] [blame] | 193 | View onCreateView(ViewGroup parent) { |
arangelov | b0802dc | 2019-10-18 18:03:44 +0100 | [diff] [blame] | 194 | return mInflater.inflate( |
| 195 | com.android.internal.R.layout.resolve_grid_item, parent, false); |
| 196 | } |
| 197 | |
| 198 | @Override |
| 199 | protected void onBindView(View view, TargetInfo info) { |
| 200 | super.onBindView(view, info); |
| 201 | |
| 202 | // If target is loading, show a special placeholder shape in the label, make unclickable |
| 203 | final ViewHolder holder = (ViewHolder) view.getTag(); |
| 204 | if (info instanceof ChooserActivity.PlaceHolderTargetInfo) { |
| 205 | final int maxWidth = mContext.getResources().getDimensionPixelSize( |
| 206 | R.dimen.chooser_direct_share_label_placeholder_max_width); |
| 207 | holder.text.setMaxWidth(maxWidth); |
| 208 | holder.text.setBackground(mContext.getResources().getDrawable( |
| 209 | R.drawable.chooser_direct_share_label_placeholder, mContext.getTheme())); |
| 210 | // Prevent rippling by removing background containing ripple |
| 211 | holder.itemView.setBackground(null); |
| 212 | } else { |
| 213 | holder.text.setMaxWidth(Integer.MAX_VALUE); |
| 214 | holder.text.setBackground(null); |
| 215 | holder.itemView.setBackground(holder.defaultItemViewBackground); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | void updateAlphabeticalList() { |
| 220 | mSortedList.clear(); |
| 221 | mSortedList.addAll(mDisplayList); |
| 222 | Collections.sort(mSortedList, new ChooserActivity.AzInfoComparator(mContext)); |
| 223 | } |
| 224 | |
| 225 | @Override |
| 226 | public boolean shouldGetResolvedFilter() { |
| 227 | return true; |
| 228 | } |
| 229 | |
| 230 | @Override |
| 231 | public int getCount() { |
| 232 | return getRankedTargetCount() + getAlphaTargetCount() |
| 233 | + getSelectableServiceTargetCount() + getCallerTargetCount(); |
| 234 | } |
| 235 | |
| 236 | @Override |
| 237 | public int getUnfilteredCount() { |
| 238 | int appTargets = super.getUnfilteredCount(); |
| 239 | if (appTargets > mChooserListCommunicator.getMaxRankedTargets()) { |
| 240 | appTargets = appTargets + mChooserListCommunicator.getMaxRankedTargets(); |
| 241 | } |
| 242 | return appTargets + getSelectableServiceTargetCount() + getCallerTargetCount(); |
| 243 | } |
| 244 | |
| 245 | |
| 246 | public int getCallerTargetCount() { |
| 247 | return Math.min(mCallerTargets.size(), MAX_SUGGESTED_APP_TARGETS); |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Filter out placeholders and non-selectable service targets |
| 252 | */ |
| 253 | public int getSelectableServiceTargetCount() { |
| 254 | int count = 0; |
| 255 | for (ChooserTargetInfo info : mServiceTargets) { |
| 256 | if (info instanceof SelectableTargetInfo) { |
| 257 | count++; |
| 258 | } |
| 259 | } |
| 260 | return count; |
| 261 | } |
| 262 | |
| 263 | public int getServiceTargetCount() { |
| 264 | if (mChooserListCommunicator.isSendAction(mChooserListCommunicator.getTargetIntent()) |
| 265 | && !ActivityManager.isLowRamDeviceStatic()) { |
| 266 | return Math.min(mServiceTargets.size(), MAX_SERVICE_TARGETS); |
| 267 | } |
| 268 | |
| 269 | return 0; |
| 270 | } |
| 271 | |
| 272 | int getAlphaTargetCount() { |
| 273 | int standardCount = super.getCount(); |
| 274 | return standardCount > mChooserListCommunicator.getMaxRankedTargets() ? standardCount : 0; |
| 275 | } |
| 276 | |
| 277 | int getRankedTargetCount() { |
| 278 | int spacesAvailable = |
| 279 | mChooserListCommunicator.getMaxRankedTargets() - getCallerTargetCount(); |
| 280 | return Math.min(spacesAvailable, super.getCount()); |
| 281 | } |
| 282 | |
| 283 | public int getPositionTargetType(int position) { |
| 284 | int offset = 0; |
| 285 | |
| 286 | final int serviceTargetCount = getServiceTargetCount(); |
| 287 | if (position < serviceTargetCount) { |
| 288 | return TARGET_SERVICE; |
| 289 | } |
| 290 | offset += serviceTargetCount; |
| 291 | |
| 292 | final int callerTargetCount = getCallerTargetCount(); |
| 293 | if (position - offset < callerTargetCount) { |
| 294 | return TARGET_CALLER; |
| 295 | } |
| 296 | offset += callerTargetCount; |
| 297 | |
| 298 | final int rankedTargetCount = getRankedTargetCount(); |
| 299 | if (position - offset < rankedTargetCount) { |
| 300 | return TARGET_STANDARD; |
| 301 | } |
| 302 | offset += rankedTargetCount; |
| 303 | |
| 304 | final int standardTargetCount = getAlphaTargetCount(); |
| 305 | if (position - offset < standardTargetCount) { |
| 306 | return TARGET_STANDARD_AZ; |
| 307 | } |
| 308 | |
| 309 | return TARGET_BAD; |
| 310 | } |
| 311 | |
| 312 | @Override |
| 313 | public TargetInfo getItem(int position) { |
| 314 | return targetInfoForPosition(position, true); |
| 315 | } |
| 316 | |
| 317 | |
| 318 | /** |
| 319 | * Find target info for a given position. |
| 320 | * Since ChooserActivity displays several sections of content, determine which |
| 321 | * section provides this item. |
| 322 | */ |
| 323 | @Override |
| 324 | public TargetInfo targetInfoForPosition(int position, boolean filtered) { |
Zhen Zhang | bde7b46 | 2019-11-11 11:49:33 -0800 | [diff] [blame] | 325 | if (position == NO_POSITION) { |
| 326 | return null; |
| 327 | } |
| 328 | |
arangelov | b0802dc | 2019-10-18 18:03:44 +0100 | [diff] [blame] | 329 | int offset = 0; |
| 330 | |
| 331 | // Direct share targets |
| 332 | final int serviceTargetCount = filtered ? getServiceTargetCount() : |
| 333 | getSelectableServiceTargetCount(); |
| 334 | if (position < serviceTargetCount) { |
| 335 | return mServiceTargets.get(position); |
| 336 | } |
| 337 | offset += serviceTargetCount; |
| 338 | |
| 339 | // Targets provided by calling app |
| 340 | final int callerTargetCount = getCallerTargetCount(); |
| 341 | if (position - offset < callerTargetCount) { |
| 342 | return mCallerTargets.get(position - offset); |
| 343 | } |
| 344 | offset += callerTargetCount; |
| 345 | |
| 346 | // Ranked standard app targets |
| 347 | final int rankedTargetCount = getRankedTargetCount(); |
| 348 | if (position - offset < rankedTargetCount) { |
| 349 | return filtered ? super.getItem(position - offset) |
| 350 | : getDisplayResolveInfo(position - offset); |
| 351 | } |
| 352 | offset += rankedTargetCount; |
| 353 | |
| 354 | // Alphabetical complete app target list. |
| 355 | if (position - offset < getAlphaTargetCount() && !mSortedList.isEmpty()) { |
| 356 | return mSortedList.get(position - offset); |
| 357 | } |
| 358 | |
| 359 | return null; |
| 360 | } |
| 361 | |
| 362 | |
| 363 | /** |
| 364 | * Evaluate targets for inclusion in the direct share area. May not be included |
| 365 | * if score is too low. |
| 366 | */ |
| 367 | public void addServiceResults(DisplayResolveInfo origTarget, List<ChooserTarget> targets, |
| 368 | @ChooserActivity.ShareTargetType int targetType) { |
| 369 | if (DEBUG) { |
| 370 | Log.d(TAG, "addServiceResults " + origTarget + ", " + targets.size() |
| 371 | + " targets"); |
| 372 | } |
| 373 | |
| 374 | if (targets.size() == 0) { |
| 375 | return; |
| 376 | } |
| 377 | |
| 378 | final float baseScore = getBaseScore(origTarget, targetType); |
| 379 | Collections.sort(targets, mBaseTargetComparator); |
| 380 | |
| 381 | final boolean isShortcutResult = |
| 382 | (targetType == TARGET_TYPE_SHORTCUTS_FROM_SHORTCUT_MANAGER |
| 383 | || targetType == TARGET_TYPE_SHORTCUTS_FROM_PREDICTION_SERVICE); |
| 384 | final int maxTargets = isShortcutResult ? mMaxShortcutTargetsPerApp |
| 385 | : MAX_CHOOSER_TARGETS_PER_APP; |
| 386 | float lastScore = 0; |
| 387 | boolean shouldNotify = false; |
| 388 | for (int i = 0, count = Math.min(targets.size(), maxTargets); i < count; i++) { |
| 389 | final ChooserTarget target = targets.get(i); |
| 390 | float targetScore = target.getScore(); |
| 391 | targetScore *= baseScore; |
| 392 | if (i > 0 && targetScore >= lastScore) { |
| 393 | // Apply a decay so that the top app can't crowd out everything else. |
| 394 | // This incents ChooserTargetServices to define what's truly better. |
| 395 | targetScore = lastScore * 0.95f; |
| 396 | } |
| 397 | boolean isInserted = insertServiceTarget(new SelectableTargetInfo( |
| 398 | mContext, origTarget, target, targetScore, mSelectableTargetInfoComunicator)); |
| 399 | |
| 400 | if (isInserted && isShortcutResult) { |
| 401 | mNumShortcutResults++; |
| 402 | } |
| 403 | |
| 404 | shouldNotify |= isInserted; |
| 405 | |
| 406 | if (DEBUG) { |
| 407 | Log.d(TAG, " => " + target.toString() + " score=" + targetScore |
| 408 | + " base=" + target.getScore() |
| 409 | + " lastScore=" + lastScore |
| 410 | + " baseScore=" + baseScore); |
| 411 | } |
| 412 | |
| 413 | lastScore = targetScore; |
| 414 | } |
| 415 | |
| 416 | if (shouldNotify) { |
| 417 | notifyDataSetChanged(); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | int getNumShortcutResults() { |
| 422 | return mNumShortcutResults; |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Use the scoring system along with artificial boosts to create up to 4 distinct buckets: |
| 427 | * <ol> |
| 428 | * <li>App-supplied targets |
| 429 | * <li>Shortcuts ranked via App Prediction Manager |
| 430 | * <li>Shortcuts ranked via legacy heuristics |
| 431 | * <li>Legacy direct share targets |
| 432 | * </ol> |
| 433 | */ |
| 434 | public float getBaseScore( |
| 435 | DisplayResolveInfo target, |
| 436 | @ChooserActivity.ShareTargetType int targetType) { |
| 437 | if (target == null) { |
| 438 | return CALLER_TARGET_SCORE_BOOST; |
| 439 | } |
| 440 | |
| 441 | if (targetType == TARGET_TYPE_SHORTCUTS_FROM_PREDICTION_SERVICE) { |
| 442 | return SHORTCUT_TARGET_SCORE_BOOST; |
| 443 | } |
| 444 | |
| 445 | float score = super.getScore(target); |
| 446 | if (targetType == TARGET_TYPE_SHORTCUTS_FROM_SHORTCUT_MANAGER) { |
| 447 | return score * SHORTCUT_TARGET_SCORE_BOOST; |
| 448 | } |
| 449 | |
| 450 | return score; |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * Calling this marks service target loading complete, and will attempt to no longer |
| 455 | * update the direct share area. |
| 456 | */ |
| 457 | public void completeServiceTargetLoading() { |
| 458 | mServiceTargets.removeIf(o -> o instanceof ChooserActivity.PlaceHolderTargetInfo); |
| 459 | |
| 460 | if (mServiceTargets.isEmpty()) { |
| 461 | mServiceTargets.add(new ChooserActivity.EmptyTargetInfo()); |
| 462 | } |
| 463 | notifyDataSetChanged(); |
| 464 | } |
| 465 | |
| 466 | private boolean insertServiceTarget(ChooserTargetInfo chooserTargetInfo) { |
| 467 | // Avoid inserting any potentially late results |
| 468 | if (mServiceTargets.size() == 1 |
| 469 | && mServiceTargets.get(0) instanceof ChooserActivity.EmptyTargetInfo) { |
| 470 | return false; |
| 471 | } |
| 472 | |
| 473 | // Check for duplicates and abort if found |
| 474 | for (ChooserTargetInfo otherTargetInfo : mServiceTargets) { |
| 475 | if (chooserTargetInfo.isSimilar(otherTargetInfo)) { |
| 476 | return false; |
| 477 | } |
| 478 | } |
| 479 | |
| 480 | int currentSize = mServiceTargets.size(); |
| 481 | final float newScore = chooserTargetInfo.getModifiedScore(); |
| 482 | for (int i = 0; i < Math.min(currentSize, MAX_SERVICE_TARGETS); i++) { |
| 483 | final ChooserTargetInfo serviceTarget = mServiceTargets.get(i); |
| 484 | if (serviceTarget == null) { |
| 485 | mServiceTargets.set(i, chooserTargetInfo); |
| 486 | return true; |
| 487 | } else if (newScore > serviceTarget.getModifiedScore()) { |
| 488 | mServiceTargets.add(i, chooserTargetInfo); |
| 489 | return true; |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | if (currentSize < MAX_SERVICE_TARGETS) { |
| 494 | mServiceTargets.add(chooserTargetInfo); |
| 495 | return true; |
| 496 | } |
| 497 | |
| 498 | return false; |
| 499 | } |
| 500 | |
| 501 | public ChooserTarget getChooserTargetForValue(int value) { |
| 502 | return mServiceTargets.get(value).getChooserTarget(); |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * Rather than fully sorting the input list, this sorting task will put the top k elements |
| 507 | * in the head of input list and fill the tail with other elements in undetermined order. |
| 508 | */ |
| 509 | @Override |
| 510 | AsyncTask<List<ResolvedComponentInfo>, |
| 511 | Void, |
| 512 | List<ResolvedComponentInfo>> createSortingTask() { |
| 513 | return new AsyncTask<List<ResolvedComponentInfo>, |
| 514 | Void, |
| 515 | List<ResolvedComponentInfo>>() { |
| 516 | @Override |
| 517 | protected List<ResolvedComponentInfo> doInBackground( |
| 518 | List<ResolvedComponentInfo>... params) { |
| 519 | mResolverListController.topK(params[0], |
| 520 | mChooserListCommunicator.getMaxRankedTargets()); |
| 521 | return params[0]; |
| 522 | } |
| 523 | @Override |
| 524 | protected void onPostExecute(List<ResolvedComponentInfo> sortedComponents) { |
| 525 | processSortedList(sortedComponents); |
| 526 | mChooserListCommunicator.updateProfileViewButton(); |
| 527 | notifyDataSetChanged(); |
| 528 | } |
| 529 | }; |
| 530 | } |
| 531 | |
| 532 | /** |
| 533 | * Necessary methods to communicate between {@link ChooserListAdapter} |
| 534 | * and {@link ChooserActivity}. |
| 535 | */ |
| 536 | interface ChooserListCommunicator extends ResolverListCommunicator { |
| 537 | |
| 538 | int getMaxRankedTargets(); |
| 539 | |
| 540 | void sendListViewUpdateMessage(); |
| 541 | |
| 542 | boolean isSendAction(Intent targetIntent); |
| 543 | } |
| 544 | } |