ResolverActivity.java revision b72b363c972ffa70205afdaeb36073ed09d57f76
1/* 2 * Copyright (C) 2008 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.internal.app; 18 19import android.os.AsyncTask; 20import com.android.internal.R; 21import com.android.internal.content.PackageMonitor; 22 23import android.app.ActivityManager; 24import android.app.ActivityManagerNative; 25import android.app.AppGlobals; 26import android.content.ComponentName; 27import android.content.Context; 28import android.content.Intent; 29import android.content.IntentFilter; 30import android.content.pm.ActivityInfo; 31import android.content.pm.LabeledIntent; 32import android.content.pm.PackageManager; 33import android.content.pm.PackageManager.NameNotFoundException; 34import android.content.pm.ResolveInfo; 35import android.content.res.Resources; 36import android.graphics.drawable.Drawable; 37import android.net.Uri; 38import android.os.Bundle; 39import android.os.PatternMatcher; 40import android.os.RemoteException; 41import android.os.UserHandle; 42import android.util.Log; 43import android.view.LayoutInflater; 44import android.view.View; 45import android.view.ViewGroup; 46import android.widget.AdapterView; 47import android.widget.BaseAdapter; 48import android.widget.Button; 49import android.widget.ImageView; 50import android.widget.ListView; 51import android.widget.TextView; 52 53import java.util.ArrayList; 54import java.util.Collections; 55import java.util.HashSet; 56import java.util.Iterator; 57import java.util.List; 58import java.util.Set; 59 60/** 61 * This activity is displayed when the system attempts to start an Intent for 62 * which there is more than one matching activity, allowing the user to decide 63 * which to go to. It is not normally used directly by application developers. 64 */ 65public class ResolverActivity extends AlertActivity implements AdapterView.OnItemClickListener { 66 private static final String TAG = "ResolverActivity"; 67 private static final boolean DEBUG = false; 68 69 private int mLaunchedFromUid; 70 private ResolveListAdapter mAdapter; 71 private PackageManager mPm; 72 private boolean mAlwaysUseOption; 73 private boolean mShowExtended; 74 private ListView mListView; 75 private Button mAlwaysButton; 76 private Button mOnceButton; 77 private int mIconDpi; 78 private int mIconSize; 79 private int mMaxColumns; 80 private int mLastSelected = ListView.INVALID_POSITION; 81 82 private boolean mRegistered; 83 private final PackageMonitor mPackageMonitor = new PackageMonitor() { 84 @Override public void onSomePackagesChanged() { 85 mAdapter.handlePackagesChanged(); 86 } 87 }; 88 89 private Intent makeMyIntent() { 90 Intent intent = new Intent(getIntent()); 91 intent.setComponent(null); 92 // The resolver activity is set to be hidden from recent tasks. 93 // we don't want this attribute to be propagated to the next activity 94 // being launched. Note that if the original Intent also had this 95 // flag set, we are now losing it. That should be a very rare case 96 // and we can live with this. 97 intent.setFlags(intent.getFlags()&~Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 98 return intent; 99 } 100 101 @Override 102 protected void onCreate(Bundle savedInstanceState) { 103 // Use a specialized prompt when we're handling the 'Home' app startActivity() 104 final int titleResource; 105 final Intent intent = makeMyIntent(); 106 final Set<String> categories = intent.getCategories(); 107 if (Intent.ACTION_MAIN.equals(intent.getAction()) 108 && categories != null 109 && categories.size() == 1 110 && categories.contains(Intent.CATEGORY_HOME)) { 111 titleResource = com.android.internal.R.string.whichHomeApplication; 112 } else { 113 titleResource = com.android.internal.R.string.whichApplication; 114 } 115 116 onCreate(savedInstanceState, intent, getResources().getText(titleResource), 117 null, null, true); 118 } 119 120 protected void onCreate(Bundle savedInstanceState, Intent intent, 121 CharSequence title, Intent[] initialIntents, List<ResolveInfo> rList, 122 boolean alwaysUseOption) { 123 setTheme(R.style.Theme_DeviceDefault_Light_Dialog_Alert); 124 super.onCreate(savedInstanceState); 125 try { 126 mLaunchedFromUid = ActivityManagerNative.getDefault().getLaunchedFromUid( 127 getActivityToken()); 128 } catch (RemoteException e) { 129 mLaunchedFromUid = -1; 130 } 131 mPm = getPackageManager(); 132 mAlwaysUseOption = alwaysUseOption; 133 mMaxColumns = getResources().getInteger(R.integer.config_maxResolverActivityColumns); 134 135 AlertController.AlertParams ap = mAlertParams; 136 137 ap.mTitle = title; 138 139 mPackageMonitor.register(this, getMainLooper(), false); 140 mRegistered = true; 141 142 final ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE); 143 mIconDpi = am.getLauncherLargeIconDensity(); 144 mIconSize = am.getLauncherLargeIconSize(); 145 146 mAdapter = new ResolveListAdapter(this, intent, initialIntents, rList, 147 mLaunchedFromUid); 148 int count = mAdapter.getCount(); 149 if (mLaunchedFromUid < 0 || UserHandle.isIsolated(mLaunchedFromUid)) { 150 // Gulp! 151 finish(); 152 return; 153 } else if (count > 1) { 154 ap.mView = getLayoutInflater().inflate(R.layout.resolver_list, null); 155 mListView = (ListView) ap.mView.findViewById(R.id.resolver_list); 156 mListView.setAdapter(mAdapter); 157 mListView.setOnItemClickListener(this); 158 mListView.setOnItemLongClickListener(new ItemLongClickListener()); 159 160 if (alwaysUseOption) { 161 mListView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 162 } 163 } else if (count == 1) { 164 startActivity(mAdapter.intentForPosition(0)); 165 mPackageMonitor.unregister(); 166 mRegistered = false; 167 finish(); 168 return; 169 } else { 170 ap.mMessage = getResources().getText(R.string.noApplications); 171 } 172 173 setupAlert(); 174 175 if (alwaysUseOption) { 176 final ViewGroup buttonLayout = (ViewGroup) findViewById(R.id.button_bar); 177 if (buttonLayout != null) { 178 buttonLayout.setVisibility(View.VISIBLE); 179 mAlwaysButton = (Button) buttonLayout.findViewById(R.id.button_always); 180 mOnceButton = (Button) buttonLayout.findViewById(R.id.button_once); 181 } else { 182 mAlwaysUseOption = false; 183 } 184 } 185 final int initialHighlight = mAdapter.getInitialHighlight(); 186 if (initialHighlight >= 0) { 187 mListView.setItemChecked(initialHighlight, true); 188 onItemClick(null, null, initialHighlight, 0); // Other entries are not used 189 } 190 } 191 192 Drawable getIcon(Resources res, int resId) { 193 Drawable result; 194 try { 195 result = res.getDrawableForDensity(resId, mIconDpi); 196 } catch (Resources.NotFoundException e) { 197 result = null; 198 } 199 200 return result; 201 } 202 203 Drawable loadIconForResolveInfo(ResolveInfo ri) { 204 Drawable dr; 205 try { 206 if (ri.resolvePackageName != null && ri.icon != 0) { 207 dr = getIcon(mPm.getResourcesForApplication(ri.resolvePackageName), ri.icon); 208 if (dr != null) { 209 return dr; 210 } 211 } 212 final int iconRes = ri.getIconResource(); 213 if (iconRes != 0) { 214 dr = getIcon(mPm.getResourcesForApplication(ri.activityInfo.packageName), iconRes); 215 if (dr != null) { 216 return dr; 217 } 218 } 219 } catch (NameNotFoundException e) { 220 Log.e(TAG, "Couldn't find resources for package", e); 221 } 222 return ri.loadIcon(mPm); 223 } 224 225 @Override 226 protected void onRestart() { 227 super.onRestart(); 228 if (!mRegistered) { 229 mPackageMonitor.register(this, getMainLooper(), false); 230 mRegistered = true; 231 } 232 mAdapter.handlePackagesChanged(); 233 } 234 235 @Override 236 protected void onStop() { 237 super.onStop(); 238 if (mRegistered) { 239 mPackageMonitor.unregister(); 240 mRegistered = false; 241 } 242 if ((getIntent().getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { 243 // This resolver is in the unusual situation where it has been 244 // launched at the top of a new task. We don't let it be added 245 // to the recent tasks shown to the user, and we need to make sure 246 // that each time we are launched we get the correct launching 247 // uid (not re-using the same resolver from an old launching uid), 248 // so we will now finish ourself since being no longer visible, 249 // the user probably can't get back to us. 250 if (!isChangingConfigurations()) { 251 finish(); 252 } 253 } 254 } 255 256 @Override 257 protected void onRestoreInstanceState(Bundle savedInstanceState) { 258 super.onRestoreInstanceState(savedInstanceState); 259 if (mAlwaysUseOption) { 260 final int checkedPos = mListView.getCheckedItemPosition(); 261 final boolean enabled = checkedPos != ListView.INVALID_POSITION; 262 mLastSelected = checkedPos; 263 mAlwaysButton.setEnabled(enabled); 264 mOnceButton.setEnabled(enabled); 265 if (enabled) { 266 mListView.setSelection(checkedPos); 267 } 268 } 269 } 270 271 @Override 272 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 273 final int checkedPos = mListView.getCheckedItemPosition(); 274 final boolean hasValidSelection = checkedPos != ListView.INVALID_POSITION; 275 if (mAlwaysUseOption && (!hasValidSelection || mLastSelected != checkedPos)) { 276 mAlwaysButton.setEnabled(hasValidSelection); 277 mOnceButton.setEnabled(hasValidSelection); 278 if (hasValidSelection) { 279 mListView.smoothScrollToPosition(checkedPos); 280 } 281 mLastSelected = checkedPos; 282 } else { 283 startSelected(position, false); 284 } 285 } 286 287 public void onButtonClick(View v) { 288 final int id = v.getId(); 289 startSelected(mListView.getCheckedItemPosition(), id == R.id.button_always); 290 dismiss(); 291 } 292 293 void startSelected(int which, boolean always) { 294 if (isFinishing()) { 295 return; 296 } 297 ResolveInfo ri = mAdapter.resolveInfoForPosition(which); 298 Intent intent = mAdapter.intentForPosition(which); 299 onIntentSelected(ri, intent, always); 300 finish(); 301 } 302 303 protected void onIntentSelected(ResolveInfo ri, Intent intent, boolean alwaysCheck) { 304 if (mAlwaysUseOption && mAdapter.mOrigResolveList != null) { 305 // Build a reasonable intent filter, based on what matched. 306 IntentFilter filter = new IntentFilter(); 307 308 if (intent.getAction() != null) { 309 filter.addAction(intent.getAction()); 310 } 311 Set<String> categories = intent.getCategories(); 312 if (categories != null) { 313 for (String cat : categories) { 314 filter.addCategory(cat); 315 } 316 } 317 filter.addCategory(Intent.CATEGORY_DEFAULT); 318 319 int cat = ri.match&IntentFilter.MATCH_CATEGORY_MASK; 320 Uri data = intent.getData(); 321 if (cat == IntentFilter.MATCH_CATEGORY_TYPE) { 322 String mimeType = intent.resolveType(this); 323 if (mimeType != null) { 324 try { 325 filter.addDataType(mimeType); 326 } catch (IntentFilter.MalformedMimeTypeException e) { 327 Log.w("ResolverActivity", e); 328 filter = null; 329 } 330 } 331 } 332 if (data != null && data.getScheme() != null) { 333 // We need the data specification if there was no type, 334 // OR if the scheme is not one of our magical "file:" 335 // or "content:" schemes (see IntentFilter for the reason). 336 if (cat != IntentFilter.MATCH_CATEGORY_TYPE 337 || (!"file".equals(data.getScheme()) 338 && !"content".equals(data.getScheme()))) { 339 filter.addDataScheme(data.getScheme()); 340 341 // Look through the resolved filter to determine which part 342 // of it matched the original Intent. 343 Iterator<PatternMatcher> pIt = ri.filter.schemeSpecificPartsIterator(); 344 if (pIt != null) { 345 String ssp = data.getSchemeSpecificPart(); 346 while (ssp != null && pIt.hasNext()) { 347 PatternMatcher p = pIt.next(); 348 if (p.match(ssp)) { 349 filter.addDataSchemeSpecificPart(p.getPath(), p.getType()); 350 break; 351 } 352 } 353 } 354 Iterator<IntentFilter.AuthorityEntry> aIt = ri.filter.authoritiesIterator(); 355 if (aIt != null) { 356 while (aIt.hasNext()) { 357 IntentFilter.AuthorityEntry a = aIt.next(); 358 if (a.match(data) >= 0) { 359 int port = a.getPort(); 360 filter.addDataAuthority(a.getHost(), 361 port >= 0 ? Integer.toString(port) : null); 362 break; 363 } 364 } 365 } 366 pIt = ri.filter.pathsIterator(); 367 if (pIt != null) { 368 String path = data.getPath(); 369 while (path != null && pIt.hasNext()) { 370 PatternMatcher p = pIt.next(); 371 if (p.match(path)) { 372 filter.addDataPath(p.getPath(), p.getType()); 373 break; 374 } 375 } 376 } 377 } 378 } 379 380 if (filter != null) { 381 final int N = mAdapter.mOrigResolveList.size(); 382 ComponentName[] set = new ComponentName[N]; 383 int bestMatch = 0; 384 for (int i=0; i<N; i++) { 385 ResolveInfo r = mAdapter.mOrigResolveList.get(i); 386 set[i] = new ComponentName(r.activityInfo.packageName, 387 r.activityInfo.name); 388 if (r.match > bestMatch) bestMatch = r.match; 389 } 390 if (alwaysCheck) { 391 getPackageManager().addPreferredActivity(filter, bestMatch, set, 392 intent.getComponent()); 393 } else { 394 try { 395 AppGlobals.getPackageManager().setLastChosenActivity(intent, 396 intent.resolveTypeIfNeeded(getContentResolver()), 397 PackageManager.MATCH_DEFAULT_ONLY, 398 filter, bestMatch, intent.getComponent()); 399 } catch (RemoteException re) { 400 Log.d(TAG, "Error calling setLastChosenActivity\n" + re); 401 } 402 } 403 } 404 } 405 406 if (intent != null) { 407 startActivity(intent); 408 } 409 } 410 411 void showAppDetails(ResolveInfo ri) { 412 Intent in = new Intent().setAction("android.settings.APPLICATION_DETAILS_SETTINGS") 413 .setData(Uri.fromParts("package", ri.activityInfo.packageName, null)) 414 .addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); 415 startActivity(in); 416 } 417 418 private final class DisplayResolveInfo { 419 ResolveInfo ri; 420 CharSequence displayLabel; 421 Drawable displayIcon; 422 CharSequence extendedInfo; 423 Intent origIntent; 424 425 DisplayResolveInfo(ResolveInfo pri, CharSequence pLabel, 426 CharSequence pInfo, Intent pOrigIntent) { 427 ri = pri; 428 displayLabel = pLabel; 429 extendedInfo = pInfo; 430 origIntent = pOrigIntent; 431 } 432 } 433 434 private final class ResolveListAdapter extends BaseAdapter { 435 private final Intent[] mInitialIntents; 436 private final List<ResolveInfo> mBaseResolveList; 437 private ResolveInfo mLastChosen; 438 private final Intent mIntent; 439 private final int mLaunchedFromUid; 440 private final LayoutInflater mInflater; 441 442 List<DisplayResolveInfo> mList; 443 List<ResolveInfo> mOrigResolveList; 444 445 private int mInitialHighlight = -1; 446 447 public ResolveListAdapter(Context context, Intent intent, 448 Intent[] initialIntents, List<ResolveInfo> rList, int launchedFromUid) { 449 mIntent = new Intent(intent); 450 mInitialIntents = initialIntents; 451 mBaseResolveList = rList; 452 mLaunchedFromUid = launchedFromUid; 453 mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 454 mList = new ArrayList<DisplayResolveInfo>(); 455 rebuildList(); 456 } 457 458 public void handlePackagesChanged() { 459 final int oldItemCount = getCount(); 460 rebuildList(); 461 notifyDataSetChanged(); 462 final int newItemCount = getCount(); 463 if (newItemCount == 0) { 464 // We no longer have any items... just finish the activity. 465 finish(); 466 } 467 } 468 469 public int getInitialHighlight() { 470 return mInitialHighlight; 471 } 472 473 private void rebuildList() { 474 List<ResolveInfo> currentResolveList; 475 476 try { 477 mLastChosen = AppGlobals.getPackageManager().getLastChosenActivity( 478 mIntent, mIntent.resolveTypeIfNeeded(getContentResolver()), 479 PackageManager.MATCH_DEFAULT_ONLY); 480 } catch (RemoteException re) { 481 Log.d(TAG, "Error calling setLastChosenActivity\n" + re); 482 } 483 484 mList.clear(); 485 if (mBaseResolveList != null) { 486 currentResolveList = mBaseResolveList; 487 mOrigResolveList = null; 488 } else { 489 currentResolveList = mOrigResolveList = mPm.queryIntentActivities( 490 mIntent, PackageManager.MATCH_DEFAULT_ONLY 491 | (mAlwaysUseOption ? PackageManager.GET_RESOLVED_FILTER : 0)); 492 // Filter out any activities that the launched uid does not 493 // have permission for. We don't do this when we have an explicit 494 // list of resolved activities, because that only happens when 495 // we are being subclassed, so we can safely launch whatever 496 // they gave us. 497 if (currentResolveList != null) { 498 for (int i=currentResolveList.size()-1; i >= 0; i--) { 499 ActivityInfo ai = currentResolveList.get(i).activityInfo; 500 int granted = ActivityManager.checkComponentPermission( 501 ai.permission, mLaunchedFromUid, 502 ai.applicationInfo.uid, ai.exported); 503 if (granted != PackageManager.PERMISSION_GRANTED) { 504 // Access not allowed! 505 if (mOrigResolveList == currentResolveList) { 506 mOrigResolveList = new ArrayList<ResolveInfo>(mOrigResolveList); 507 } 508 currentResolveList.remove(i); 509 } 510 } 511 } 512 } 513 int N; 514 if ((currentResolveList != null) && ((N = currentResolveList.size()) > 0)) { 515 // Only display the first matches that are either of equal 516 // priority or have asked to be default options. 517 ResolveInfo r0 = currentResolveList.get(0); 518 for (int i=1; i<N; i++) { 519 ResolveInfo ri = currentResolveList.get(i); 520 if (DEBUG) Log.v( 521 "ResolveListActivity", 522 r0.activityInfo.name + "=" + 523 r0.priority + "/" + r0.isDefault + " vs " + 524 ri.activityInfo.name + "=" + 525 ri.priority + "/" + ri.isDefault); 526 if (r0.priority != ri.priority || 527 r0.isDefault != ri.isDefault) { 528 while (i < N) { 529 if (mOrigResolveList == currentResolveList) { 530 mOrigResolveList = new ArrayList<ResolveInfo>(mOrigResolveList); 531 } 532 currentResolveList.remove(i); 533 N--; 534 } 535 } 536 } 537 if (N > 1) { 538 ResolveInfo.DisplayNameComparator rComparator = 539 new ResolveInfo.DisplayNameComparator(mPm); 540 Collections.sort(currentResolveList, rComparator); 541 } 542 // First put the initial items at the top. 543 if (mInitialIntents != null) { 544 for (int i=0; i<mInitialIntents.length; i++) { 545 Intent ii = mInitialIntents[i]; 546 if (ii == null) { 547 continue; 548 } 549 ActivityInfo ai = ii.resolveActivityInfo( 550 getPackageManager(), 0); 551 if (ai == null) { 552 Log.w("ResolverActivity", "No activity found for " 553 + ii); 554 continue; 555 } 556 ResolveInfo ri = new ResolveInfo(); 557 ri.activityInfo = ai; 558 if (ii instanceof LabeledIntent) { 559 LabeledIntent li = (LabeledIntent)ii; 560 ri.resolvePackageName = li.getSourcePackage(); 561 ri.labelRes = li.getLabelResource(); 562 ri.nonLocalizedLabel = li.getNonLocalizedLabel(); 563 ri.icon = li.getIconResource(); 564 } 565 mList.add(new DisplayResolveInfo(ri, 566 ri.loadLabel(getPackageManager()), null, ii)); 567 } 568 } 569 570 // Check for applications with same name and use application name or 571 // package name if necessary 572 r0 = currentResolveList.get(0); 573 int start = 0; 574 CharSequence r0Label = r0.loadLabel(mPm); 575 mShowExtended = false; 576 for (int i = 1; i < N; i++) { 577 if (r0Label == null) { 578 r0Label = r0.activityInfo.packageName; 579 } 580 ResolveInfo ri = currentResolveList.get(i); 581 CharSequence riLabel = ri.loadLabel(mPm); 582 if (riLabel == null) { 583 riLabel = ri.activityInfo.packageName; 584 } 585 if (riLabel.equals(r0Label)) { 586 continue; 587 } 588 processGroup(currentResolveList, start, (i-1), r0, r0Label); 589 r0 = ri; 590 r0Label = riLabel; 591 start = i; 592 } 593 // Process last group 594 processGroup(currentResolveList, start, (N-1), r0, r0Label); 595 } 596 } 597 598 private void processGroup(List<ResolveInfo> rList, int start, int end, ResolveInfo ro, 599 CharSequence roLabel) { 600 // Process labels from start to i 601 int num = end - start+1; 602 if (num == 1) { 603 if (mLastChosen != null 604 && mLastChosen.activityInfo.packageName.equals( 605 ro.activityInfo.packageName) 606 && mLastChosen.activityInfo.name.equals(ro.activityInfo.name)) { 607 mInitialHighlight = mList.size(); 608 } 609 // No duplicate labels. Use label for entry at start 610 mList.add(new DisplayResolveInfo(ro, roLabel, null, null)); 611 } else { 612 mShowExtended = true; 613 boolean usePkg = false; 614 CharSequence startApp = ro.activityInfo.applicationInfo.loadLabel(mPm); 615 if (startApp == null) { 616 usePkg = true; 617 } 618 if (!usePkg) { 619 // Use HashSet to track duplicates 620 HashSet<CharSequence> duplicates = 621 new HashSet<CharSequence>(); 622 duplicates.add(startApp); 623 for (int j = start+1; j <= end ; j++) { 624 ResolveInfo jRi = rList.get(j); 625 CharSequence jApp = jRi.activityInfo.applicationInfo.loadLabel(mPm); 626 if ( (jApp == null) || (duplicates.contains(jApp))) { 627 usePkg = true; 628 break; 629 } else { 630 duplicates.add(jApp); 631 } 632 } 633 // Clear HashSet for later use 634 duplicates.clear(); 635 } 636 for (int k = start; k <= end; k++) { 637 ResolveInfo add = rList.get(k); 638 if (mLastChosen != null 639 && mLastChosen.activityInfo.packageName.equals( 640 add.activityInfo.packageName) 641 && mLastChosen.activityInfo.name.equals(add.activityInfo.name)) { 642 mInitialHighlight = mList.size(); 643 } 644 if (usePkg) { 645 // Use application name for all entries from start to end-1 646 mList.add(new DisplayResolveInfo(add, roLabel, 647 add.activityInfo.packageName, null)); 648 } else { 649 // Use package name for all entries from start to end-1 650 mList.add(new DisplayResolveInfo(add, roLabel, 651 add.activityInfo.applicationInfo.loadLabel(mPm), null)); 652 } 653 } 654 } 655 } 656 657 public ResolveInfo resolveInfoForPosition(int position) { 658 return mList.get(position).ri; 659 } 660 661 public Intent intentForPosition(int position) { 662 DisplayResolveInfo dri = mList.get(position); 663 664 Intent intent = new Intent(dri.origIntent != null 665 ? dri.origIntent : mIntent); 666 intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT 667 |Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP); 668 ActivityInfo ai = dri.ri.activityInfo; 669 intent.setComponent(new ComponentName( 670 ai.applicationInfo.packageName, ai.name)); 671 return intent; 672 } 673 674 public int getCount() { 675 return mList.size(); 676 } 677 678 public Object getItem(int position) { 679 return mList.get(position); 680 } 681 682 public long getItemId(int position) { 683 return position; 684 } 685 686 public View getView(int position, View convertView, ViewGroup parent) { 687 View view; 688 if (convertView == null) { 689 view = mInflater.inflate( 690 com.android.internal.R.layout.resolve_list_item, parent, false); 691 692 final ViewHolder holder = new ViewHolder(view); 693 view.setTag(holder); 694 695 // Fix the icon size even if we have different sized resources 696 ViewGroup.LayoutParams lp = holder.icon.getLayoutParams(); 697 lp.width = lp.height = mIconSize; 698 } else { 699 view = convertView; 700 } 701 bindView(view, mList.get(position)); 702 return view; 703 } 704 705 private final void bindView(View view, DisplayResolveInfo info) { 706 final ViewHolder holder = (ViewHolder) view.getTag(); 707 holder.text.setText(info.displayLabel); 708 if (mShowExtended) { 709 holder.text2.setVisibility(View.VISIBLE); 710 holder.text2.setText(info.extendedInfo); 711 } else { 712 holder.text2.setVisibility(View.GONE); 713 } 714 if (info.displayIcon == null) { 715 new LoadIconTask().execute(info); 716 } 717 holder.icon.setImageDrawable(info.displayIcon); 718 } 719 } 720 721 static class ViewHolder { 722 public TextView text; 723 public TextView text2; 724 public ImageView icon; 725 726 public ViewHolder(View view) { 727 text = (TextView) view.findViewById(com.android.internal.R.id.text1); 728 text2 = (TextView) view.findViewById(com.android.internal.R.id.text2); 729 icon = (ImageView) view.findViewById(R.id.icon); 730 } 731 } 732 733 class ItemLongClickListener implements AdapterView.OnItemLongClickListener { 734 735 @Override 736 public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { 737 ResolveInfo ri = mAdapter.resolveInfoForPosition(position); 738 showAppDetails(ri); 739 return true; 740 } 741 742 } 743 744 class LoadIconTask extends AsyncTask<DisplayResolveInfo, Void, DisplayResolveInfo> { 745 @Override 746 protected DisplayResolveInfo doInBackground(DisplayResolveInfo... params) { 747 final DisplayResolveInfo info = params[0]; 748 if (info.displayIcon == null) { 749 info.displayIcon = loadIconForResolveInfo(info.ri); 750 } 751 return info; 752 } 753 754 @Override 755 protected void onPostExecute(DisplayResolveInfo info) { 756 mAdapter.notifyDataSetChanged(); 757 } 758 } 759} 760 761