ActivityManager.java revision 4ede3e0d0a9e76c701db19e073d2d1ff487d2a64
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 android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.IBinder; 34import android.os.ParcelFileDescriptor; 35 36import com.android.internal.app.procstats.ProcessStats; 37import com.android.internal.os.RoSystemProperties; 38import com.android.internal.os.TransferPipe; 39import com.android.internal.util.FastPrintWriter; 40import com.android.server.LocalServices; 41 42import android.content.ComponentName; 43import android.content.Context; 44import android.content.Intent; 45import android.content.UriPermission; 46import android.content.pm.ApplicationInfo; 47import android.content.pm.ConfigurationInfo; 48import android.content.pm.IPackageDataObserver; 49import android.content.pm.PackageManager; 50import android.content.pm.ParceledListSlice; 51import android.content.pm.UserInfo; 52import android.content.res.Resources; 53import android.graphics.Bitmap; 54import android.graphics.Color; 55import android.graphics.Rect; 56import android.os.Bundle; 57import android.os.Debug; 58import android.os.Handler; 59import android.os.Parcel; 60import android.os.Parcelable; 61import android.os.Process; 62import android.os.RemoteException; 63import android.os.ServiceManager; 64import android.os.SystemProperties; 65import android.os.UserHandle; 66import android.text.TextUtils; 67import android.util.ArrayMap; 68import android.util.DisplayMetrics; 69import android.util.Singleton; 70import android.util.Size; 71 72import org.xmlpull.v1.XmlSerializer; 73 74import java.io.FileDescriptor; 75import java.io.FileOutputStream; 76import java.io.IOException; 77import java.io.PrintWriter; 78import java.lang.annotation.Retention; 79import java.lang.annotation.RetentionPolicy; 80import java.util.ArrayList; 81import java.util.List; 82 83/** 84 * <p> 85 * This class gives information about, and interacts 86 * with, activities, services, and the containing 87 * process. 88 * </p> 89 * 90 * <p> 91 * A number of the methods in this class are for 92 * debugging or informational purposes and they should 93 * not be used to affect any runtime behavior of 94 * your app. These methods are called out as such in 95 * the method level documentation. 96 * </p> 97 * 98 *<p> 99 * Most application developers should not have the need to 100 * use this class, most of whose methods are for specialized 101 * use cases. However, a few methods are more broadly applicable. 102 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 103 * enables your app to detect whether it is running on a low-memory device, 104 * and behave accordingly. 105 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 106 * is for apps with reset-data functionality. 107 * </p> 108 * 109 * <p> 110 * In some special use cases, where an app interacts with 111 * its Task stack, the app may use the 112 * {@link android.app.ActivityManager.AppTask} and 113 * {@link android.app.ActivityManager.RecentTaskInfo} inner 114 * classes. However, in general, the methods in this class should 115 * be used for testing and debugging purposes only. 116 * </p> 117 */ 118public class ActivityManager { 119 private static String TAG = "ActivityManager"; 120 121 private static int gMaxRecentTasks = -1; 122 123 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 124 125 private final Context mContext; 126 127 private static volatile boolean sSystemReady = false; 128 129 /** 130 * System property to enable task snapshots. 131 * @hide 132 */ 133 public final static boolean ENABLE_TASK_SNAPSHOTS; 134 135 static { 136 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", false); 137 } 138 139 static final class UidObserver extends IUidObserver.Stub { 140 final OnUidImportanceListener mListener; 141 142 UidObserver(OnUidImportanceListener listener) { 143 mListener = listener; 144 } 145 146 @Override 147 public void onUidStateChanged(int uid, int procState) { 148 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 149 } 150 151 @Override 152 public void onUidGone(int uid, boolean disabled) { 153 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 154 } 155 156 @Override 157 public void onUidActive(int uid) { 158 } 159 160 @Override 161 public void onUidIdle(int uid, boolean disabled) { 162 } 163 } 164 165 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 166 167 /** 168 * Defines acceptable types of bugreports. 169 * @hide 170 */ 171 @Retention(RetentionPolicy.SOURCE) 172 @IntDef({ 173 BUGREPORT_OPTION_FULL, 174 BUGREPORT_OPTION_INTERACTIVE, 175 BUGREPORT_OPTION_REMOTE, 176 BUGREPORT_OPTION_WEAR, 177 BUGREPORT_OPTION_TELEPHONY 178 }) 179 public @interface BugreportMode {} 180 /** 181 * Takes a bugreport without user interference (and hence causing less 182 * interference to the system), but includes all sections. 183 * @hide 184 */ 185 public static final int BUGREPORT_OPTION_FULL = 0; 186 /** 187 * Allows user to monitor progress and enter additional data; might not include all 188 * sections. 189 * @hide 190 */ 191 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 192 /** 193 * Takes a bugreport requested remotely by administrator of the Device Owner app, 194 * not the device's user. 195 * @hide 196 */ 197 public static final int BUGREPORT_OPTION_REMOTE = 2; 198 /** 199 * Takes a bugreport on a wearable device. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_WEAR = 3; 203 204 /** 205 * Takes a lightweight version of bugreport that only includes a few, urgent sections 206 * used to report telephony bugs. 207 * @hide 208 */ 209 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 210 211 /** 212 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 213 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 214 * uninstalled in lieu of the declaring one. The package named here must be 215 * signed with the same certificate as the one declaring the {@code <meta-data>}. 216 */ 217 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 218 219 /** 220 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 221 * @hide 222 */ 223 public static final int START_VOICE_HIDDEN_SESSION = -10; 224 225 /** 226 * Result for IActivityManager.startVoiceActivity: active session does not match 227 * the requesting token. 228 * @hide 229 */ 230 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 231 232 /** 233 * Result for IActivityManager.startActivity: trying to start a background user 234 * activity that shouldn't be displayed for all users. 235 * @hide 236 */ 237 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 238 239 /** 240 * Result for IActivityManager.startActivity: trying to start an activity under voice 241 * control when that activity does not support the VOICE category. 242 * @hide 243 */ 244 public static final int START_NOT_VOICE_COMPATIBLE = -7; 245 246 /** 247 * Result for IActivityManager.startActivity: an error where the 248 * start had to be canceled. 249 * @hide 250 */ 251 public static final int START_CANCELED = -6; 252 253 /** 254 * Result for IActivityManager.startActivity: an error where the 255 * thing being started is not an activity. 256 * @hide 257 */ 258 public static final int START_NOT_ACTIVITY = -5; 259 260 /** 261 * Result for IActivityManager.startActivity: an error where the 262 * caller does not have permission to start the activity. 263 * @hide 264 */ 265 public static final int START_PERMISSION_DENIED = -4; 266 267 /** 268 * Result for IActivityManager.startActivity: an error where the 269 * caller has requested both to forward a result and to receive 270 * a result. 271 * @hide 272 */ 273 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 274 275 /** 276 * Result for IActivityManager.startActivity: an error where the 277 * requested class is not found. 278 * @hide 279 */ 280 public static final int START_CLASS_NOT_FOUND = -2; 281 282 /** 283 * Result for IActivityManager.startActivity: an error where the 284 * given Intent could not be resolved to an activity. 285 * @hide 286 */ 287 public static final int START_INTENT_NOT_RESOLVED = -1; 288 289 /** 290 * Result for IActivityManaqer.startActivity: the activity was started 291 * successfully as normal. 292 * @hide 293 */ 294 public static final int START_SUCCESS = 0; 295 296 /** 297 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 298 * be executed if it is the recipient, and that is indeed the case. 299 * @hide 300 */ 301 public static final int START_RETURN_INTENT_TO_CALLER = 1; 302 303 /** 304 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 305 * a task was simply brought to the foreground. 306 * @hide 307 */ 308 public static final int START_TASK_TO_FRONT = 2; 309 310 /** 311 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 312 * the given Intent was given to the existing top activity. 313 * @hide 314 */ 315 public static final int START_DELIVERED_TO_TOP = 3; 316 317 /** 318 * Result for IActivityManaqer.startActivity: request was canceled because 319 * app switches are temporarily canceled to ensure the user's last request 320 * (such as pressing home) is performed. 321 * @hide 322 */ 323 public static final int START_SWITCHES_CANCELED = 4; 324 325 /** 326 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 327 * while in Lock Task Mode. 328 * @hide 329 */ 330 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 331 332 /** 333 * Flag for IActivityManaqer.startActivity: do special start mode where 334 * a new activity is launched only if it is needed. 335 * @hide 336 */ 337 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 338 339 /** 340 * Flag for IActivityManaqer.startActivity: launch the app for 341 * debugging. 342 * @hide 343 */ 344 public static final int START_FLAG_DEBUG = 1<<1; 345 346 /** 347 * Flag for IActivityManaqer.startActivity: launch the app for 348 * allocation tracking. 349 * @hide 350 */ 351 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 352 353 /** 354 * Flag for IActivityManaqer.startActivity: launch the app with 355 * native debugging support. 356 * @hide 357 */ 358 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 359 360 /** 361 * Result for IActivityManaqer.broadcastIntent: success! 362 * @hide 363 */ 364 public static final int BROADCAST_SUCCESS = 0; 365 366 /** 367 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 368 * a sticky intent without appropriate permission. 369 * @hide 370 */ 371 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 372 373 /** 374 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 375 * to a stopped user. Fail. 376 * @hide 377 */ 378 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 379 380 /** 381 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 382 * for a sendBroadcast operation. 383 * @hide 384 */ 385 public static final int INTENT_SENDER_BROADCAST = 1; 386 387 /** 388 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 389 * for a startActivity operation. 390 * @hide 391 */ 392 public static final int INTENT_SENDER_ACTIVITY = 2; 393 394 /** 395 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 396 * for an activity result operation. 397 * @hide 398 */ 399 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 400 401 /** 402 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 403 * for a startService operation. 404 * @hide 405 */ 406 public static final int INTENT_SENDER_SERVICE = 4; 407 408 /** @hide User operation call: success! */ 409 public static final int USER_OP_SUCCESS = 0; 410 411 /** @hide User operation call: given user id is not known. */ 412 public static final int USER_OP_UNKNOWN_USER = -1; 413 414 /** @hide User operation call: given user id is the current user, can't be stopped. */ 415 public static final int USER_OP_IS_CURRENT = -2; 416 417 /** @hide User operation call: system user can't be stopped. */ 418 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 419 420 /** @hide User operation call: one of related users cannot be stopped. */ 421 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 422 423 /** @hide Not a real process state. */ 424 public static final int PROCESS_STATE_UNKNOWN = -1; 425 426 /** @hide Process is a persistent system process. */ 427 public static final int PROCESS_STATE_PERSISTENT = 0; 428 429 /** @hide Process is a persistent system process and is doing UI. */ 430 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 431 432 /** @hide Process is hosting the current top activities. Note that this covers 433 * all activities that are visible to the user. */ 434 public static final int PROCESS_STATE_TOP = 2; 435 436 /** @hide Process is hosting a foreground service due to a system binding. */ 437 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 438 439 /** @hide Process is hosting a foreground service. */ 440 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 441 442 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 443 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 444 445 /** @hide Process is important to the user, and something they are aware of. */ 446 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 447 448 /** @hide Process is important to the user, but not something they are aware of. */ 449 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 450 451 /** @hide Process is in the background running a backup/restore operation. */ 452 public static final int PROCESS_STATE_BACKUP = 8; 453 454 /** @hide Process is in the background, but it can't restore its state so we want 455 * to try to avoid killing it. */ 456 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 457 458 /** @hide Process is in the background running a service. Unlike oom_adj, this level 459 * is used for both the normal running in background state and the executing 460 * operations state. */ 461 public static final int PROCESS_STATE_SERVICE = 10; 462 463 /** @hide Process is in the background running a receiver. Note that from the 464 * perspective of oom_adj receivers run at a higher foreground level, but for our 465 * prioritization here that is not necessary and putting them below services means 466 * many fewer changes in some process states as they receive broadcasts. */ 467 public static final int PROCESS_STATE_RECEIVER = 11; 468 469 /** @hide Process is in the background but hosts the home activity. */ 470 public static final int PROCESS_STATE_HOME = 12; 471 472 /** @hide Process is in the background but hosts the last shown activity. */ 473 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 474 475 /** @hide Process is being cached for later use and contains activities. */ 476 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 477 478 /** @hide Process is being cached for later use and is a client of another cached 479 * process that contains activities. */ 480 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 481 482 /** @hide Process is being cached for later use and is empty. */ 483 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 484 485 /** @hide Process does not exist. */ 486 public static final int PROCESS_STATE_NONEXISTENT = 17; 487 488 /** @hide The lowest process state number */ 489 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 490 491 /** @hide The highest process state number */ 492 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 493 494 /** @hide Should this process state be considered a background state? */ 495 public static final boolean isProcStateBackground(int procState) { 496 return procState >= PROCESS_STATE_BACKUP; 497 } 498 499 /** @hide requestType for assist context: only basic information. */ 500 public static final int ASSIST_CONTEXT_BASIC = 0; 501 502 /** @hide requestType for assist context: generate full AssistStructure. */ 503 public static final int ASSIST_CONTEXT_FULL = 1; 504 505 /** @hide requestType for assist context: generate full AssistStructure for auto-fill. */ 506 public static final int ASSIST_CONTEXT_AUTO_FILL = 2; 507 508 /** @hide requestType for assist context: generate full AssistStructure for auto-fill save. */ 509 public static final int ASSIST_CONTEXT_AUTO_FILL_SAVE = 3; 510 511 /** @hide Flag for registerUidObserver: report changes in process state. */ 512 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 513 514 /** @hide Flag for registerUidObserver: report uid gone. */ 515 public static final int UID_OBSERVER_GONE = 1<<1; 516 517 /** @hide Flag for registerUidObserver: report uid has become idle. */ 518 public static final int UID_OBSERVER_IDLE = 1<<2; 519 520 /** @hide Flag for registerUidObserver: report uid has become active. */ 521 public static final int UID_OBSERVER_ACTIVE = 1<<3; 522 523 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 524 public static final int APP_START_MODE_NORMAL = 0; 525 526 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 527 public static final int APP_START_MODE_DELAYED = 1; 528 529 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 530 * launches. */ 531 public static final int APP_START_MODE_DISABLED = 2; 532 533 /** 534 * Lock task mode is not active. 535 */ 536 public static final int LOCK_TASK_MODE_NONE = 0; 537 538 /** 539 * Full lock task mode is active. 540 */ 541 public static final int LOCK_TASK_MODE_LOCKED = 1; 542 543 /** 544 * App pinning mode is active. 545 */ 546 public static final int LOCK_TASK_MODE_PINNED = 2; 547 548 Point mAppTaskThumbnailSize; 549 550 /*package*/ ActivityManager(Context context, Handler handler) { 551 mContext = context; 552 } 553 554 /** 555 * Screen compatibility mode: the application most always run in 556 * compatibility mode. 557 * @hide 558 */ 559 public static final int COMPAT_MODE_ALWAYS = -1; 560 561 /** 562 * Screen compatibility mode: the application can never run in 563 * compatibility mode. 564 * @hide 565 */ 566 public static final int COMPAT_MODE_NEVER = -2; 567 568 /** 569 * Screen compatibility mode: unknown. 570 * @hide 571 */ 572 public static final int COMPAT_MODE_UNKNOWN = -3; 573 574 /** 575 * Screen compatibility mode: the application currently has compatibility 576 * mode disabled. 577 * @hide 578 */ 579 public static final int COMPAT_MODE_DISABLED = 0; 580 581 /** 582 * Screen compatibility mode: the application currently has compatibility 583 * mode enabled. 584 * @hide 585 */ 586 public static final int COMPAT_MODE_ENABLED = 1; 587 588 /** 589 * Screen compatibility mode: request to toggle the application's 590 * compatibility mode. 591 * @hide 592 */ 593 public static final int COMPAT_MODE_TOGGLE = 2; 594 595 /** @hide */ 596 public static class StackId { 597 /** Invalid stack ID. */ 598 public static final int INVALID_STACK_ID = -1; 599 600 /** First static stack ID. */ 601 public static final int FIRST_STATIC_STACK_ID = 0; 602 603 /** Home activity stack ID. */ 604 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 605 606 /** ID of stack where fullscreen activities are normally launched into. */ 607 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 608 609 /** ID of stack where freeform/resized activities are normally launched into. */ 610 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 611 612 /** ID of stack that occupies a dedicated region of the screen. */ 613 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 614 615 /** ID of stack that always on top (always visible) when it exist. */ 616 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 617 618 /** Recents activity stack ID. */ 619 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 620 621 /** Last static stack stack ID. */ 622 public static final int LAST_STATIC_STACK_ID = RECENTS_STACK_ID; 623 624 /** Start of ID range used by stacks that are created dynamically. */ 625 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 626 627 public static boolean isStaticStack(int stackId) { 628 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 629 } 630 631 public static boolean isDynamicStack(int stackId) { 632 return stackId >= FIRST_DYNAMIC_STACK_ID; 633 } 634 635 /** 636 * Returns true if the activities contained in the input stack display a shadow around 637 * their border. 638 */ 639 public static boolean hasWindowShadow(int stackId) { 640 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 641 } 642 643 /** 644 * Returns true if the activities contained in the input stack display a decor view. 645 */ 646 public static boolean hasWindowDecor(int stackId) { 647 return stackId == FREEFORM_WORKSPACE_STACK_ID; 648 } 649 650 /** 651 * Returns true if the tasks contained in the stack can be resized independently of the 652 * stack. 653 */ 654 public static boolean isTaskResizeAllowed(int stackId) { 655 return stackId == FREEFORM_WORKSPACE_STACK_ID; 656 } 657 658 /** Returns true if the task bounds should persist across power cycles. */ 659 public static boolean persistTaskBounds(int stackId) { 660 return stackId == FREEFORM_WORKSPACE_STACK_ID; 661 } 662 663 /** 664 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 665 */ 666 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 667 return stackId == PINNED_STACK_ID; 668 } 669 670 /** 671 * Returns true if we try to maintain focus in the current stack when the top activity 672 * finishes. 673 */ 674 public static boolean keepFocusInStackIfPossible(int stackId) { 675 return stackId == FREEFORM_WORKSPACE_STACK_ID 676 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 677 } 678 679 /** 680 * Returns true if Stack size is affected by the docked stack changing size. 681 */ 682 public static boolean isResizeableByDockedStack(int stackId) { 683 return isStaticStack(stackId) && 684 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 685 } 686 687 /** 688 * Returns true if the size of tasks in the input stack are affected by the docked stack 689 * changing size. 690 */ 691 public static boolean isTaskResizeableByDockedStack(int stackId) { 692 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 693 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 694 } 695 696 /** 697 * Returns true if the windows of tasks being moved to the target stack from the source 698 * stack should be replaced, meaning that window manager will keep the old window around 699 * until the new is ready. 700 */ 701 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 702 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 703 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 704 } 705 706 /** 707 * Return whether a stackId is a stack containing floating windows. Floating windows 708 * are laid out differently as they are allowed to extend past the display bounds 709 * without overscan insets. 710 */ 711 public static boolean tasksAreFloating(int stackId) { 712 return stackId == FREEFORM_WORKSPACE_STACK_ID 713 || stackId == PINNED_STACK_ID; 714 } 715 716 /** 717 * Returns true if animation specs should be constructed for app transition that moves 718 * the task to the specified stack. 719 */ 720 public static boolean useAnimationSpecForAppTransition(int stackId) { 721 722 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 723 // reboots. 724 return stackId == FREEFORM_WORKSPACE_STACK_ID 725 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 726 || stackId == INVALID_STACK_ID; 727 } 728 729 /** Returns true if the windows in the stack can receive input keys. */ 730 public static boolean canReceiveKeys(int stackId) { 731 return stackId != PINNED_STACK_ID; 732 } 733 734 /** 735 * Returns true if the stack can be visible above lockscreen. 736 */ 737 public static boolean isAllowedOverLockscreen(int stackId) { 738 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 739 } 740 741 public static boolean isAlwaysOnTop(int stackId) { 742 return stackId == PINNED_STACK_ID; 743 } 744 745 /** 746 * Returns true if the top task in the task is allowed to return home when finished and 747 * there are other tasks in the stack. 748 */ 749 public static boolean allowTopTaskToReturnHome(int stackId) { 750 return stackId != PINNED_STACK_ID; 751 } 752 753 /** 754 * Returns true if the stack should be resized to match the bounds specified by 755 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 756 */ 757 public static boolean resizeStackWithLaunchBounds(int stackId) { 758 return stackId == PINNED_STACK_ID; 759 } 760 761 /** 762 * Returns true if any visible windows belonging to apps in this stack should be kept on 763 * screen when the app is killed due to something like the low memory killer. 764 */ 765 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 766 return stackId != PINNED_STACK_ID; 767 } 768 769 /** 770 * Returns true if the backdrop on the client side should match the frame of the window. 771 * Returns false, if the backdrop should be fullscreen. 772 */ 773 public static boolean useWindowFrameForBackdrop(int stackId) { 774 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 775 } 776 777 /** 778 * Returns true if a window from the specified stack with {@param stackId} are normally 779 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 780 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 781 * etc. 782 */ 783 public static boolean normallyFullscreenWindows(int stackId) { 784 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 785 && stackId != DOCKED_STACK_ID; 786 } 787 788 /** 789 * Returns true if the input stack id should only be present on a device that supports 790 * multi-window mode. 791 * @see android.app.ActivityManager#supportsMultiWindow 792 */ 793 public static boolean isMultiWindowStack(int stackId) { 794 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 795 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 796 } 797 798 /** 799 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 800 */ 801 public static boolean isHomeOrRecentsStack(int stackId) { 802 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 803 } 804 805 /** 806 * Returns true if activities contained in this stack can request visible behind by 807 * calling {@link Activity#requestVisibleBehind}. 808 */ 809 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 810 return stackId == FULLSCREEN_WORKSPACE_STACK_ID; 811 } 812 813 /** 814 * Returns true if this stack may be scaled without resizing, 815 * and windows within may need to be configured as such. 816 */ 817 public static boolean windowsAreScaleable(int stackId) { 818 return stackId == PINNED_STACK_ID; 819 } 820 821 /** 822 * Returns true if windows in this stack should be given move animations 823 * by default. 824 */ 825 public static boolean hasMovementAnimations(int stackId) { 826 return stackId != PINNED_STACK_ID; 827 } 828 829 /** Returns true if the input stack and its content can affect the device orientation. */ 830 public static boolean canSpecifyOrientation(int stackId) { 831 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID 832 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || isDynamicStack(stackId); 833 } 834 } 835 836 /** 837 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 838 * specifies the position of the created docked stack at the top half of the screen if 839 * in portrait mode or at the left half of the screen if in landscape mode. 840 * @hide 841 */ 842 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 843 844 /** 845 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 846 * specifies the position of the created docked stack at the bottom half of the screen if 847 * in portrait mode or at the right half of the screen if in landscape mode. 848 * @hide 849 */ 850 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 851 852 /** 853 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 854 * that the resize doesn't need to preserve the window, and can be skipped if bounds 855 * is unchanged. This mode is used by window manager in most cases. 856 * @hide 857 */ 858 public static final int RESIZE_MODE_SYSTEM = 0; 859 860 /** 861 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 862 * that the resize should preserve the window if possible. 863 * @hide 864 */ 865 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 866 867 /** 868 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 869 * that the resize should be performed even if the bounds appears unchanged. 870 * @hide 871 */ 872 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 873 874 /** 875 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 876 * manager during a screen rotation. 877 * @hide 878 */ 879 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 880 881 /** 882 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 883 * resize is due to a drag action. 884 * @hide 885 */ 886 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 887 888 /** 889 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 890 * that the resize should preserve the window if possible, and should not be skipped 891 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 892 * is ending. 893 * @hide 894 */ 895 public static final int RESIZE_MODE_USER_FORCED = 896 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 897 898 /** @hide */ 899 public int getFrontActivityScreenCompatMode() { 900 try { 901 return getService().getFrontActivityScreenCompatMode(); 902 } catch (RemoteException e) { 903 throw e.rethrowFromSystemServer(); 904 } 905 } 906 907 /** @hide */ 908 public void setFrontActivityScreenCompatMode(int mode) { 909 try { 910 getService().setFrontActivityScreenCompatMode(mode); 911 } catch (RemoteException e) { 912 throw e.rethrowFromSystemServer(); 913 } 914 } 915 916 /** @hide */ 917 public int getPackageScreenCompatMode(String packageName) { 918 try { 919 return getService().getPackageScreenCompatMode(packageName); 920 } catch (RemoteException e) { 921 throw e.rethrowFromSystemServer(); 922 } 923 } 924 925 /** @hide */ 926 public void setPackageScreenCompatMode(String packageName, int mode) { 927 try { 928 getService().setPackageScreenCompatMode(packageName, mode); 929 } catch (RemoteException e) { 930 throw e.rethrowFromSystemServer(); 931 } 932 } 933 934 /** @hide */ 935 public boolean getPackageAskScreenCompat(String packageName) { 936 try { 937 return getService().getPackageAskScreenCompat(packageName); 938 } catch (RemoteException e) { 939 throw e.rethrowFromSystemServer(); 940 } 941 } 942 943 /** @hide */ 944 public void setPackageAskScreenCompat(String packageName, boolean ask) { 945 try { 946 getService().setPackageAskScreenCompat(packageName, ask); 947 } catch (RemoteException e) { 948 throw e.rethrowFromSystemServer(); 949 } 950 } 951 952 /** 953 * Return the approximate per-application memory class of the current 954 * device. This gives you an idea of how hard a memory limit you should 955 * impose on your application to let the overall system work best. The 956 * returned value is in megabytes; the baseline Android memory class is 957 * 16 (which happens to be the Java heap limit of those devices); some 958 * device with more memory may return 24 or even higher numbers. 959 */ 960 public int getMemoryClass() { 961 return staticGetMemoryClass(); 962 } 963 964 /** @hide */ 965 static public int staticGetMemoryClass() { 966 // Really brain dead right now -- just take this from the configured 967 // vm heap size, and assume it is in megabytes and thus ends with "m". 968 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 969 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 970 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 971 } 972 return staticGetLargeMemoryClass(); 973 } 974 975 /** 976 * Return the approximate per-application memory class of the current 977 * device when an application is running with a large heap. This is the 978 * space available for memory-intensive applications; most applications 979 * should not need this amount of memory, and should instead stay with the 980 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 981 * This may be the same size as {@link #getMemoryClass()} on memory 982 * constrained devices, or it may be significantly larger on devices with 983 * a large amount of available RAM. 984 * 985 * <p>The is the size of the application's Dalvik heap if it has 986 * specified <code>android:largeHeap="true"</code> in its manifest. 987 */ 988 public int getLargeMemoryClass() { 989 return staticGetLargeMemoryClass(); 990 } 991 992 /** @hide */ 993 static public int staticGetLargeMemoryClass() { 994 // Really brain dead right now -- just take this from the configured 995 // vm heap size, and assume it is in megabytes and thus ends with "m". 996 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 997 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 998 } 999 1000 /** 1001 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1002 * is ultimately up to the device configuration, but currently it generally means 1003 * something in the class of a 512MB device with about a 800x480 or less screen. 1004 * This is mostly intended to be used by apps to determine whether they should turn 1005 * off certain features that require more RAM. 1006 */ 1007 public boolean isLowRamDevice() { 1008 return isLowRamDeviceStatic(); 1009 } 1010 1011 /** @hide */ 1012 public static boolean isLowRamDeviceStatic() { 1013 return RoSystemProperties.CONFIG_LOW_RAM; 1014 } 1015 1016 /** 1017 * Used by persistent processes to determine if they are running on a 1018 * higher-end device so should be okay using hardware drawing acceleration 1019 * (which tends to consume a lot more RAM). 1020 * @hide 1021 */ 1022 static public boolean isHighEndGfx() { 1023 return !isLowRamDeviceStatic() && 1024 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1025 } 1026 1027 /** 1028 * Return the maximum number of recents entries that we will maintain and show. 1029 * @hide 1030 */ 1031 static public int getMaxRecentTasksStatic() { 1032 if (gMaxRecentTasks < 0) { 1033 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1034 } 1035 return gMaxRecentTasks; 1036 } 1037 1038 /** 1039 * Return the default limit on the number of recents that an app can make. 1040 * @hide 1041 */ 1042 static public int getDefaultAppRecentsLimitStatic() { 1043 return getMaxRecentTasksStatic() / 6; 1044 } 1045 1046 /** 1047 * Return the maximum limit on the number of recents that an app can make. 1048 * @hide 1049 */ 1050 static public int getMaxAppRecentsLimitStatic() { 1051 return getMaxRecentTasksStatic() / 2; 1052 } 1053 1054 /** 1055 * Returns true if the system supports at least one form of multi-window. 1056 * E.g. freeform, split-screen, picture-in-picture. 1057 * @hide 1058 */ 1059 static public boolean supportsMultiWindow() { 1060 return !isLowRamDeviceStatic() 1061 && Resources.getSystem().getBoolean( 1062 com.android.internal.R.bool.config_supportsMultiWindow); 1063 } 1064 1065 /** 1066 * Returns true if the system supports split screen multi-window. 1067 * @hide 1068 */ 1069 static public boolean supportsSplitScreenMultiWindow() { 1070 return supportsMultiWindow() 1071 && Resources.getSystem().getBoolean( 1072 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1073 } 1074 1075 /** 1076 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1077 * the user interacts with the activity currently in picture-in-picture mode. 1078 */ 1079 public static int getMaxNumPictureInPictureActions() { 1080 return NUM_ALLOWED_PIP_ACTIONS; 1081 } 1082 1083 /** 1084 * Information you can set and retrieve about the current activity within the recent task list. 1085 */ 1086 public static class TaskDescription implements Parcelable { 1087 /** @hide */ 1088 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1089 private static final String ATTR_TASKDESCRIPTIONLABEL = 1090 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1091 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1092 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1093 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1094 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1095 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1096 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1097 1098 private String mLabel; 1099 private Bitmap mIcon; 1100 private String mIconFilename; 1101 private int mColorPrimary; 1102 private int mColorBackground; 1103 1104 /** 1105 * Creates the TaskDescription to the specified values. 1106 * 1107 * @param label A label and description of the current state of this task. 1108 * @param icon An icon that represents the current state of this task. 1109 * @param colorPrimary A color to override the theme's primary color. This color must be 1110 * opaque. 1111 */ 1112 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1113 this(label, icon, null, colorPrimary, 0); 1114 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1115 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1116 } 1117 } 1118 1119 /** 1120 * Creates the TaskDescription to the specified values. 1121 * 1122 * @param label A label and description of the current state of this activity. 1123 * @param icon An icon that represents the current state of this activity. 1124 */ 1125 public TaskDescription(String label, Bitmap icon) { 1126 this(label, icon, null, 0, 0); 1127 } 1128 1129 /** 1130 * Creates the TaskDescription to the specified values. 1131 * 1132 * @param label A label and description of the current state of this activity. 1133 */ 1134 public TaskDescription(String label) { 1135 this(label, null, null, 0, 0); 1136 } 1137 1138 /** 1139 * Creates an empty TaskDescription. 1140 */ 1141 public TaskDescription() { 1142 this(null, null, null, 0, 0); 1143 } 1144 1145 /** @hide */ 1146 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1147 int colorBackground) { 1148 mLabel = label; 1149 mIcon = icon; 1150 mIconFilename = iconFilename; 1151 mColorPrimary = colorPrimary; 1152 mColorBackground = colorBackground; 1153 } 1154 1155 /** 1156 * Creates a copy of another TaskDescription. 1157 */ 1158 public TaskDescription(TaskDescription td) { 1159 copyFrom(td); 1160 } 1161 1162 /** 1163 * Copies this the values from another TaskDescription. 1164 * @hide 1165 */ 1166 public void copyFrom(TaskDescription other) { 1167 mLabel = other.mLabel; 1168 mIcon = other.mIcon; 1169 mIconFilename = other.mIconFilename; 1170 mColorPrimary = other.mColorPrimary; 1171 mColorBackground = other.mColorBackground; 1172 } 1173 1174 private TaskDescription(Parcel source) { 1175 readFromParcel(source); 1176 } 1177 1178 /** 1179 * Sets the label for this task description. 1180 * @hide 1181 */ 1182 public void setLabel(String label) { 1183 mLabel = label; 1184 } 1185 1186 /** 1187 * Sets the primary color for this task description. 1188 * @hide 1189 */ 1190 public void setPrimaryColor(int primaryColor) { 1191 // Ensure that the given color is valid 1192 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1193 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1194 } 1195 mColorPrimary = primaryColor; 1196 } 1197 1198 /** 1199 * Sets the background color for this task description. 1200 * @hide 1201 */ 1202 public void setBackgroundColor(int backgroundColor) { 1203 // Ensure that the given color is valid 1204 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1205 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1206 } 1207 mColorBackground = backgroundColor; 1208 } 1209 1210 /** 1211 * Sets the icon for this task description. 1212 * @hide 1213 */ 1214 public void setIcon(Bitmap icon) { 1215 mIcon = icon; 1216 } 1217 1218 /** 1219 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1220 * bitmap. 1221 * @hide 1222 */ 1223 public void setIconFilename(String iconFilename) { 1224 mIconFilename = iconFilename; 1225 mIcon = null; 1226 } 1227 1228 /** 1229 * @return The label and description of the current state of this task. 1230 */ 1231 public String getLabel() { 1232 return mLabel; 1233 } 1234 1235 /** 1236 * @return The icon that represents the current state of this task. 1237 */ 1238 public Bitmap getIcon() { 1239 if (mIcon != null) { 1240 return mIcon; 1241 } 1242 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1243 } 1244 1245 /** @hide */ 1246 public String getIconFilename() { 1247 return mIconFilename; 1248 } 1249 1250 /** @hide */ 1251 public Bitmap getInMemoryIcon() { 1252 return mIcon; 1253 } 1254 1255 /** @hide */ 1256 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1257 if (iconFilename != null) { 1258 try { 1259 return getService().getTaskDescriptionIcon(iconFilename, 1260 userId); 1261 } catch (RemoteException e) { 1262 throw e.rethrowFromSystemServer(); 1263 } 1264 } 1265 return null; 1266 } 1267 1268 /** 1269 * @return The color override on the theme's primary color. 1270 */ 1271 public int getPrimaryColor() { 1272 return mColorPrimary; 1273 } 1274 1275 /** 1276 * @return The background color. 1277 * @hide 1278 */ 1279 public int getBackgroundColor() { 1280 return mColorBackground; 1281 } 1282 1283 /** @hide */ 1284 public void saveToXml(XmlSerializer out) throws IOException { 1285 if (mLabel != null) { 1286 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1287 } 1288 if (mColorPrimary != 0) { 1289 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1290 Integer.toHexString(mColorPrimary)); 1291 } 1292 if (mColorBackground != 0) { 1293 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1294 Integer.toHexString(mColorBackground)); 1295 } 1296 if (mIconFilename != null) { 1297 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1298 } 1299 } 1300 1301 /** @hide */ 1302 public void restoreFromXml(String attrName, String attrValue) { 1303 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1304 setLabel(attrValue); 1305 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1306 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1307 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1308 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1309 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1310 setIconFilename(attrValue); 1311 } 1312 } 1313 1314 @Override 1315 public int describeContents() { 1316 return 0; 1317 } 1318 1319 @Override 1320 public void writeToParcel(Parcel dest, int flags) { 1321 if (mLabel == null) { 1322 dest.writeInt(0); 1323 } else { 1324 dest.writeInt(1); 1325 dest.writeString(mLabel); 1326 } 1327 if (mIcon == null) { 1328 dest.writeInt(0); 1329 } else { 1330 dest.writeInt(1); 1331 mIcon.writeToParcel(dest, 0); 1332 } 1333 dest.writeInt(mColorPrimary); 1334 dest.writeInt(mColorBackground); 1335 if (mIconFilename == null) { 1336 dest.writeInt(0); 1337 } else { 1338 dest.writeInt(1); 1339 dest.writeString(mIconFilename); 1340 } 1341 } 1342 1343 public void readFromParcel(Parcel source) { 1344 mLabel = source.readInt() > 0 ? source.readString() : null; 1345 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1346 mColorPrimary = source.readInt(); 1347 mColorBackground = source.readInt(); 1348 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1349 } 1350 1351 public static final Creator<TaskDescription> CREATOR 1352 = new Creator<TaskDescription>() { 1353 public TaskDescription createFromParcel(Parcel source) { 1354 return new TaskDescription(source); 1355 } 1356 public TaskDescription[] newArray(int size) { 1357 return new TaskDescription[size]; 1358 } 1359 }; 1360 1361 @Override 1362 public String toString() { 1363 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1364 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1365 " colorBackground: " + mColorBackground; 1366 } 1367 } 1368 1369 /** 1370 * Information you can retrieve about tasks that the user has most recently 1371 * started or visited. 1372 */ 1373 public static class RecentTaskInfo implements Parcelable { 1374 /** 1375 * If this task is currently running, this is the identifier for it. 1376 * If it is not running, this will be -1. 1377 */ 1378 public int id; 1379 1380 /** 1381 * The true identifier of this task, valid even if it is not running. 1382 */ 1383 public int persistentId; 1384 1385 /** 1386 * The original Intent used to launch the task. You can use this 1387 * Intent to re-launch the task (if it is no longer running) or bring 1388 * the current task to the front. 1389 */ 1390 public Intent baseIntent; 1391 1392 /** 1393 * If this task was started from an alias, this is the actual 1394 * activity component that was initially started; the component of 1395 * the baseIntent in this case is the name of the actual activity 1396 * implementation that the alias referred to. Otherwise, this is null. 1397 */ 1398 public ComponentName origActivity; 1399 1400 /** 1401 * The actual activity component that started the task. 1402 * @hide 1403 */ 1404 @Nullable 1405 public ComponentName realActivity; 1406 1407 /** 1408 * Description of the task's last state. 1409 */ 1410 public CharSequence description; 1411 1412 /** 1413 * The id of the ActivityStack this Task was on most recently. 1414 * @hide 1415 */ 1416 public int stackId; 1417 1418 /** 1419 * The id of the user the task was running as. 1420 * @hide 1421 */ 1422 public int userId; 1423 1424 /** 1425 * The first time this task was active. 1426 * @hide 1427 */ 1428 public long firstActiveTime; 1429 1430 /** 1431 * The last time this task was active. 1432 * @hide 1433 */ 1434 public long lastActiveTime; 1435 1436 /** 1437 * The recent activity values for the highest activity in the stack to have set the values. 1438 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1439 */ 1440 public TaskDescription taskDescription; 1441 1442 /** 1443 * Task affiliation for grouping with other tasks. 1444 */ 1445 public int affiliatedTaskId; 1446 1447 /** 1448 * Task affiliation color of the source task with the affiliated task id. 1449 * 1450 * @hide 1451 */ 1452 public int affiliatedTaskColor; 1453 1454 /** 1455 * The component launched as the first activity in the task. 1456 * This can be considered the "application" of this task. 1457 */ 1458 public ComponentName baseActivity; 1459 1460 /** 1461 * The activity component at the top of the history stack of the task. 1462 * This is what the user is currently doing. 1463 */ 1464 public ComponentName topActivity; 1465 1466 /** 1467 * Number of activities in this task. 1468 */ 1469 public int numActivities; 1470 1471 /** 1472 * The bounds of the task. 1473 * @hide 1474 */ 1475 public Rect bounds; 1476 1477 /** 1478 * True if the task can go in the docked stack. 1479 * @hide 1480 */ 1481 public boolean isDockable; 1482 1483 /** 1484 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1485 * @hide 1486 */ 1487 public int resizeMode; 1488 1489 public RecentTaskInfo() { 1490 } 1491 1492 @Override 1493 public int describeContents() { 1494 return 0; 1495 } 1496 1497 @Override 1498 public void writeToParcel(Parcel dest, int flags) { 1499 dest.writeInt(id); 1500 dest.writeInt(persistentId); 1501 if (baseIntent != null) { 1502 dest.writeInt(1); 1503 baseIntent.writeToParcel(dest, 0); 1504 } else { 1505 dest.writeInt(0); 1506 } 1507 ComponentName.writeToParcel(origActivity, dest); 1508 ComponentName.writeToParcel(realActivity, dest); 1509 TextUtils.writeToParcel(description, dest, 1510 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1511 if (taskDescription != null) { 1512 dest.writeInt(1); 1513 taskDescription.writeToParcel(dest, 0); 1514 } else { 1515 dest.writeInt(0); 1516 } 1517 dest.writeInt(stackId); 1518 dest.writeInt(userId); 1519 dest.writeLong(firstActiveTime); 1520 dest.writeLong(lastActiveTime); 1521 dest.writeInt(affiliatedTaskId); 1522 dest.writeInt(affiliatedTaskColor); 1523 ComponentName.writeToParcel(baseActivity, dest); 1524 ComponentName.writeToParcel(topActivity, dest); 1525 dest.writeInt(numActivities); 1526 if (bounds != null) { 1527 dest.writeInt(1); 1528 bounds.writeToParcel(dest, 0); 1529 } else { 1530 dest.writeInt(0); 1531 } 1532 dest.writeInt(isDockable ? 1 : 0); 1533 dest.writeInt(resizeMode); 1534 } 1535 1536 public void readFromParcel(Parcel source) { 1537 id = source.readInt(); 1538 persistentId = source.readInt(); 1539 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1540 origActivity = ComponentName.readFromParcel(source); 1541 realActivity = ComponentName.readFromParcel(source); 1542 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1543 taskDescription = source.readInt() > 0 ? 1544 TaskDescription.CREATOR.createFromParcel(source) : null; 1545 stackId = source.readInt(); 1546 userId = source.readInt(); 1547 firstActiveTime = source.readLong(); 1548 lastActiveTime = source.readLong(); 1549 affiliatedTaskId = source.readInt(); 1550 affiliatedTaskColor = source.readInt(); 1551 baseActivity = ComponentName.readFromParcel(source); 1552 topActivity = ComponentName.readFromParcel(source); 1553 numActivities = source.readInt(); 1554 bounds = source.readInt() > 0 ? 1555 Rect.CREATOR.createFromParcel(source) : null; 1556 isDockable = source.readInt() == 1; 1557 resizeMode = source.readInt(); 1558 } 1559 1560 public static final Creator<RecentTaskInfo> CREATOR 1561 = new Creator<RecentTaskInfo>() { 1562 public RecentTaskInfo createFromParcel(Parcel source) { 1563 return new RecentTaskInfo(source); 1564 } 1565 public RecentTaskInfo[] newArray(int size) { 1566 return new RecentTaskInfo[size]; 1567 } 1568 }; 1569 1570 private RecentTaskInfo(Parcel source) { 1571 readFromParcel(source); 1572 } 1573 } 1574 1575 /** 1576 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1577 * that have set their 1578 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1579 */ 1580 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1581 1582 /** 1583 * Provides a list that does not contain any 1584 * recent tasks that currently are not available to the user. 1585 */ 1586 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1587 1588 /** 1589 * Provides a list that contains recent tasks for all 1590 * profiles of a user. 1591 * @hide 1592 */ 1593 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1594 1595 /** 1596 * Ignores all tasks that are on the home stack. 1597 * @hide 1598 */ 1599 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1600 1601 /** 1602 * Ignores the top task in the docked stack. 1603 * @hide 1604 */ 1605 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1606 1607 /** 1608 * Ignores all tasks that are on the pinned stack. 1609 * @hide 1610 */ 1611 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1612 1613 /** 1614 * <p></p>Return a list of the tasks that the user has recently launched, with 1615 * the most recent being first and older ones after in order. 1616 * 1617 * <p><b>Note: this method is only intended for debugging and presenting 1618 * task management user interfaces</b>. This should never be used for 1619 * core logic in an application, such as deciding between different 1620 * behaviors based on the information found here. Such uses are 1621 * <em>not</em> supported, and will likely break in the future. For 1622 * example, if multiple applications can be actively running at the 1623 * same time, assumptions made about the meaning of the data here for 1624 * purposes of control flow will be incorrect.</p> 1625 * 1626 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1627 * no longer available to third party applications: the introduction of 1628 * document-centric recents means 1629 * it can leak personal information to the caller. For backwards compatibility, 1630 * it will still return a small subset of its data: at least the caller's 1631 * own tasks (though see {@link #getAppTasks()} for the correct supported 1632 * way to retrieve that information), and possibly some other tasks 1633 * such as home that are known to not be sensitive. 1634 * 1635 * @param maxNum The maximum number of entries to return in the list. The 1636 * actual number returned may be smaller, depending on how many tasks the 1637 * user has started and the maximum number the system can remember. 1638 * @param flags Information about what to return. May be any combination 1639 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1640 * 1641 * @return Returns a list of RecentTaskInfo records describing each of 1642 * the recent tasks. 1643 */ 1644 @Deprecated 1645 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1646 throws SecurityException { 1647 try { 1648 return getService().getRecentTasks(maxNum, 1649 flags, UserHandle.myUserId()).getList(); 1650 } catch (RemoteException e) { 1651 throw e.rethrowFromSystemServer(); 1652 } 1653 } 1654 1655 /** 1656 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1657 * specific user. It requires holding 1658 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1659 * @param maxNum The maximum number of entries to return in the list. The 1660 * actual number returned may be smaller, depending on how many tasks the 1661 * user has started and the maximum number the system can remember. 1662 * @param flags Information about what to return. May be any combination 1663 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1664 * 1665 * @return Returns a list of RecentTaskInfo records describing each of 1666 * the recent tasks. Most recently activated tasks go first. 1667 * 1668 * @hide 1669 */ 1670 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1671 throws SecurityException { 1672 try { 1673 return getService().getRecentTasks(maxNum, 1674 flags, userId).getList(); 1675 } catch (RemoteException e) { 1676 throw e.rethrowFromSystemServer(); 1677 } 1678 } 1679 1680 /** 1681 * Information you can retrieve about a particular task that is currently 1682 * "running" in the system. Note that a running task does not mean the 1683 * given task actually has a process it is actively running in; it simply 1684 * means that the user has gone to it and never closed it, but currently 1685 * the system may have killed its process and is only holding on to its 1686 * last state in order to restart it when the user returns. 1687 */ 1688 public static class RunningTaskInfo implements Parcelable { 1689 /** 1690 * A unique identifier for this task. 1691 */ 1692 public int id; 1693 1694 /** 1695 * The stack that currently contains this task. 1696 * @hide 1697 */ 1698 public int stackId; 1699 1700 /** 1701 * The component launched as the first activity in the task. This can 1702 * be considered the "application" of this task. 1703 */ 1704 public ComponentName baseActivity; 1705 1706 /** 1707 * The activity component at the top of the history stack of the task. 1708 * This is what the user is currently doing. 1709 */ 1710 public ComponentName topActivity; 1711 1712 /** 1713 * Thumbnail representation of the task's current state. Currently 1714 * always null. 1715 */ 1716 public Bitmap thumbnail; 1717 1718 /** 1719 * Description of the task's current state. 1720 */ 1721 public CharSequence description; 1722 1723 /** 1724 * Number of activities in this task. 1725 */ 1726 public int numActivities; 1727 1728 /** 1729 * Number of activities that are currently running (not stopped 1730 * and persisted) in this task. 1731 */ 1732 public int numRunning; 1733 1734 /** 1735 * Last time task was run. For sorting. 1736 * @hide 1737 */ 1738 public long lastActiveTime; 1739 1740 /** 1741 * True if the task can go in the docked stack. 1742 * @hide 1743 */ 1744 public boolean isDockable; 1745 1746 /** 1747 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1748 * @hide 1749 */ 1750 public int resizeMode; 1751 1752 public RunningTaskInfo() { 1753 } 1754 1755 public int describeContents() { 1756 return 0; 1757 } 1758 1759 public void writeToParcel(Parcel dest, int flags) { 1760 dest.writeInt(id); 1761 dest.writeInt(stackId); 1762 ComponentName.writeToParcel(baseActivity, dest); 1763 ComponentName.writeToParcel(topActivity, dest); 1764 if (thumbnail != null) { 1765 dest.writeInt(1); 1766 thumbnail.writeToParcel(dest, 0); 1767 } else { 1768 dest.writeInt(0); 1769 } 1770 TextUtils.writeToParcel(description, dest, 1771 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1772 dest.writeInt(numActivities); 1773 dest.writeInt(numRunning); 1774 dest.writeInt(isDockable ? 1 : 0); 1775 dest.writeInt(resizeMode); 1776 } 1777 1778 public void readFromParcel(Parcel source) { 1779 id = source.readInt(); 1780 stackId = source.readInt(); 1781 baseActivity = ComponentName.readFromParcel(source); 1782 topActivity = ComponentName.readFromParcel(source); 1783 if (source.readInt() != 0) { 1784 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1785 } else { 1786 thumbnail = null; 1787 } 1788 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1789 numActivities = source.readInt(); 1790 numRunning = source.readInt(); 1791 isDockable = source.readInt() != 0; 1792 resizeMode = source.readInt(); 1793 } 1794 1795 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1796 public RunningTaskInfo createFromParcel(Parcel source) { 1797 return new RunningTaskInfo(source); 1798 } 1799 public RunningTaskInfo[] newArray(int size) { 1800 return new RunningTaskInfo[size]; 1801 } 1802 }; 1803 1804 private RunningTaskInfo(Parcel source) { 1805 readFromParcel(source); 1806 } 1807 } 1808 1809 /** 1810 * Get the list of tasks associated with the calling application. 1811 * 1812 * @return The list of tasks associated with the application making this call. 1813 * @throws SecurityException 1814 */ 1815 public List<ActivityManager.AppTask> getAppTasks() { 1816 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1817 List<IBinder> appTasks; 1818 try { 1819 appTasks = getService().getAppTasks(mContext.getPackageName()); 1820 } catch (RemoteException e) { 1821 throw e.rethrowFromSystemServer(); 1822 } 1823 int numAppTasks = appTasks.size(); 1824 for (int i = 0; i < numAppTasks; i++) { 1825 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1826 } 1827 return tasks; 1828 } 1829 1830 /** 1831 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1832 * with {@link #addAppTask}. 1833 */ 1834 public Size getAppTaskThumbnailSize() { 1835 synchronized (this) { 1836 ensureAppTaskThumbnailSizeLocked(); 1837 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1838 } 1839 } 1840 1841 private void ensureAppTaskThumbnailSizeLocked() { 1842 if (mAppTaskThumbnailSize == null) { 1843 try { 1844 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1845 } catch (RemoteException e) { 1846 throw e.rethrowFromSystemServer(); 1847 } 1848 } 1849 } 1850 1851 /** 1852 * Add a new {@link AppTask} for the calling application. This will create a new 1853 * recents entry that is added to the <b>end</b> of all existing recents. 1854 * 1855 * @param activity The activity that is adding the entry. This is used to help determine 1856 * the context that the new recents entry will be in. 1857 * @param intent The Intent that describes the recents entry. This is the same Intent that 1858 * you would have used to launch the activity for it. In generally you will want to set 1859 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1860 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1861 * entry will exist without an activity, so it doesn't make sense to not retain it when 1862 * its activity disappears. The given Intent here also must have an explicit ComponentName 1863 * set on it. 1864 * @param description Optional additional description information. 1865 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1866 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1867 * recreated in your process, probably in a way you don't like, before the recents entry 1868 * is added. 1869 * 1870 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1871 * most likely cause of failure is that there is no more room for more tasks for your app. 1872 */ 1873 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1874 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1875 Point size; 1876 synchronized (this) { 1877 ensureAppTaskThumbnailSizeLocked(); 1878 size = mAppTaskThumbnailSize; 1879 } 1880 final int tw = thumbnail.getWidth(); 1881 final int th = thumbnail.getHeight(); 1882 if (tw != size.x || th != size.y) { 1883 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1884 1885 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1886 float scale; 1887 float dx = 0, dy = 0; 1888 if (tw * size.x > size.y * th) { 1889 scale = (float) size.x / (float) th; 1890 dx = (size.y - tw * scale) * 0.5f; 1891 } else { 1892 scale = (float) size.y / (float) tw; 1893 dy = (size.x - th * scale) * 0.5f; 1894 } 1895 Matrix matrix = new Matrix(); 1896 matrix.setScale(scale, scale); 1897 matrix.postTranslate((int) (dx + 0.5f), 0); 1898 1899 Canvas canvas = new Canvas(bm); 1900 canvas.drawBitmap(thumbnail, matrix, null); 1901 canvas.setBitmap(null); 1902 1903 thumbnail = bm; 1904 } 1905 if (description == null) { 1906 description = new TaskDescription(); 1907 } 1908 try { 1909 return getService().addAppTask(activity.getActivityToken(), 1910 intent, description, thumbnail); 1911 } catch (RemoteException e) { 1912 throw e.rethrowFromSystemServer(); 1913 } 1914 } 1915 1916 /** 1917 * Return a list of the tasks that are currently running, with 1918 * the most recent being first and older ones after in order. Note that 1919 * "running" does not mean any of the task's code is currently loaded or 1920 * activity -- the task may have been frozen by the system, so that it 1921 * can be restarted in its previous state when next brought to the 1922 * foreground. 1923 * 1924 * <p><b>Note: this method is only intended for debugging and presenting 1925 * task management user interfaces</b>. This should never be used for 1926 * core logic in an application, such as deciding between different 1927 * behaviors based on the information found here. Such uses are 1928 * <em>not</em> supported, and will likely break in the future. For 1929 * example, if multiple applications can be actively running at the 1930 * same time, assumptions made about the meaning of the data here for 1931 * purposes of control flow will be incorrect.</p> 1932 * 1933 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1934 * is no longer available to third party 1935 * applications: the introduction of document-centric recents means 1936 * it can leak person information to the caller. For backwards compatibility, 1937 * it will still retu rn a small subset of its data: at least the caller's 1938 * own tasks, and possibly some other tasks 1939 * such as home that are known to not be sensitive. 1940 * 1941 * @param maxNum The maximum number of entries to return in the list. The 1942 * actual number returned may be smaller, depending on how many tasks the 1943 * user has started. 1944 * 1945 * @return Returns a list of RunningTaskInfo records describing each of 1946 * the running tasks. 1947 */ 1948 @Deprecated 1949 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1950 throws SecurityException { 1951 try { 1952 return getService().getTasks(maxNum, 0); 1953 } catch (RemoteException e) { 1954 throw e.rethrowFromSystemServer(); 1955 } 1956 } 1957 1958 /** 1959 * Completely remove the given task. 1960 * 1961 * @param taskId Identifier of the task to be removed. 1962 * @return Returns true if the given task was found and removed. 1963 * 1964 * @hide 1965 */ 1966 public boolean removeTask(int taskId) throws SecurityException { 1967 try { 1968 return getService().removeTask(taskId); 1969 } catch (RemoteException e) { 1970 throw e.rethrowFromSystemServer(); 1971 } 1972 } 1973 1974 /** 1975 * Metadata related to the {@link TaskThumbnail}. 1976 * 1977 * @hide 1978 */ 1979 public static class TaskThumbnailInfo implements Parcelable { 1980 /** @hide */ 1981 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1982 private static final String ATTR_TASK_WIDTH = 1983 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1984 private static final String ATTR_TASK_HEIGHT = 1985 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1986 private static final String ATTR_SCREEN_ORIENTATION = 1987 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1988 1989 public int taskWidth; 1990 public int taskHeight; 1991 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1992 1993 public TaskThumbnailInfo() { 1994 // Do nothing 1995 } 1996 1997 private TaskThumbnailInfo(Parcel source) { 1998 readFromParcel(source); 1999 } 2000 2001 /** 2002 * Resets this info state to the initial state. 2003 * @hide 2004 */ 2005 public void reset() { 2006 taskWidth = 0; 2007 taskHeight = 0; 2008 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2009 } 2010 2011 /** 2012 * Copies from another ThumbnailInfo. 2013 */ 2014 public void copyFrom(TaskThumbnailInfo o) { 2015 taskWidth = o.taskWidth; 2016 taskHeight = o.taskHeight; 2017 screenOrientation = o.screenOrientation; 2018 } 2019 2020 /** @hide */ 2021 public void saveToXml(XmlSerializer out) throws IOException { 2022 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2023 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2024 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2025 } 2026 2027 /** @hide */ 2028 public void restoreFromXml(String attrName, String attrValue) { 2029 if (ATTR_TASK_WIDTH.equals(attrName)) { 2030 taskWidth = Integer.parseInt(attrValue); 2031 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2032 taskHeight = Integer.parseInt(attrValue); 2033 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2034 screenOrientation = Integer.parseInt(attrValue); 2035 } 2036 } 2037 2038 public int describeContents() { 2039 return 0; 2040 } 2041 2042 public void writeToParcel(Parcel dest, int flags) { 2043 dest.writeInt(taskWidth); 2044 dest.writeInt(taskHeight); 2045 dest.writeInt(screenOrientation); 2046 } 2047 2048 public void readFromParcel(Parcel source) { 2049 taskWidth = source.readInt(); 2050 taskHeight = source.readInt(); 2051 screenOrientation = source.readInt(); 2052 } 2053 2054 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2055 public TaskThumbnailInfo createFromParcel(Parcel source) { 2056 return new TaskThumbnailInfo(source); 2057 } 2058 public TaskThumbnailInfo[] newArray(int size) { 2059 return new TaskThumbnailInfo[size]; 2060 } 2061 }; 2062 } 2063 2064 /** @hide */ 2065 public static class TaskThumbnail implements Parcelable { 2066 public Bitmap mainThumbnail; 2067 public ParcelFileDescriptor thumbnailFileDescriptor; 2068 public TaskThumbnailInfo thumbnailInfo; 2069 2070 public TaskThumbnail() { 2071 } 2072 2073 private TaskThumbnail(Parcel source) { 2074 readFromParcel(source); 2075 } 2076 2077 public int describeContents() { 2078 if (thumbnailFileDescriptor != null) { 2079 return thumbnailFileDescriptor.describeContents(); 2080 } 2081 return 0; 2082 } 2083 2084 public void writeToParcel(Parcel dest, int flags) { 2085 if (mainThumbnail != null) { 2086 dest.writeInt(1); 2087 mainThumbnail.writeToParcel(dest, flags); 2088 } else { 2089 dest.writeInt(0); 2090 } 2091 if (thumbnailFileDescriptor != null) { 2092 dest.writeInt(1); 2093 thumbnailFileDescriptor.writeToParcel(dest, flags); 2094 } else { 2095 dest.writeInt(0); 2096 } 2097 if (thumbnailInfo != null) { 2098 dest.writeInt(1); 2099 thumbnailInfo.writeToParcel(dest, flags); 2100 } else { 2101 dest.writeInt(0); 2102 } 2103 } 2104 2105 public void readFromParcel(Parcel source) { 2106 if (source.readInt() != 0) { 2107 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2108 } else { 2109 mainThumbnail = null; 2110 } 2111 if (source.readInt() != 0) { 2112 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2113 } else { 2114 thumbnailFileDescriptor = null; 2115 } 2116 if (source.readInt() != 0) { 2117 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2118 } else { 2119 thumbnailInfo = null; 2120 } 2121 } 2122 2123 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2124 public TaskThumbnail createFromParcel(Parcel source) { 2125 return new TaskThumbnail(source); 2126 } 2127 public TaskThumbnail[] newArray(int size) { 2128 return new TaskThumbnail[size]; 2129 } 2130 }; 2131 } 2132 2133 /** 2134 * Represents a task snapshot. 2135 * @hide 2136 */ 2137 public static class TaskSnapshot implements Parcelable { 2138 2139 private final GraphicBuffer mSnapshot; 2140 private final int mOrientation; 2141 private final Rect mContentInsets; 2142 2143 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets) { 2144 mSnapshot = snapshot; 2145 mOrientation = orientation; 2146 mContentInsets = new Rect(contentInsets); 2147 } 2148 2149 private TaskSnapshot(Parcel source) { 2150 mSnapshot = source.readParcelable(null /* classLoader */); 2151 mOrientation = source.readInt(); 2152 mContentInsets = source.readParcelable(null /* classLoader */); 2153 } 2154 2155 public GraphicBuffer getSnapshot() { 2156 return mSnapshot; 2157 } 2158 2159 public int getOrientation() { 2160 return mOrientation; 2161 } 2162 2163 public Rect getContentInsets() { 2164 return mContentInsets; 2165 } 2166 2167 @Override 2168 public int describeContents() { 2169 return 0; 2170 } 2171 2172 @Override 2173 public void writeToParcel(Parcel dest, int flags) { 2174 dest.writeParcelable(mSnapshot, 0); 2175 dest.writeInt(mOrientation); 2176 dest.writeParcelable(mContentInsets, 0); 2177 } 2178 2179 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2180 public TaskSnapshot createFromParcel(Parcel source) { 2181 return new TaskSnapshot(source); 2182 } 2183 public TaskSnapshot[] newArray(int size) { 2184 return new TaskSnapshot[size]; 2185 } 2186 }; 2187 } 2188 2189 /** @hide */ 2190 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2191 try { 2192 return getService().getTaskThumbnail(id); 2193 } catch (RemoteException e) { 2194 throw e.rethrowFromSystemServer(); 2195 } 2196 } 2197 2198 /** 2199 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2200 * activity along with the task, so it is positioned immediately behind 2201 * the task. 2202 */ 2203 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2204 2205 /** 2206 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2207 * user-instigated action, so the current activity will not receive a 2208 * hint that the user is leaving. 2209 */ 2210 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2211 2212 /** 2213 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2214 * with a null options argument. 2215 * 2216 * @param taskId The identifier of the task to be moved, as found in 2217 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2218 * @param flags Additional operational flags, 0 or more of 2219 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2220 */ 2221 public void moveTaskToFront(int taskId, int flags) { 2222 moveTaskToFront(taskId, flags, null); 2223 } 2224 2225 /** 2226 * Ask that the task associated with a given task ID be moved to the 2227 * front of the stack, so it is now visible to the user. Requires that 2228 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2229 * or a SecurityException will be thrown. 2230 * 2231 * @param taskId The identifier of the task to be moved, as found in 2232 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2233 * @param flags Additional operational flags, 0 or more of 2234 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2235 * @param options Additional options for the operation, either null or 2236 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2237 * Context.startActivity(Intent, Bundle)}. 2238 */ 2239 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2240 try { 2241 getService().moveTaskToFront(taskId, flags, options); 2242 } catch (RemoteException e) { 2243 throw e.rethrowFromSystemServer(); 2244 } 2245 } 2246 2247 /** 2248 * Information you can retrieve about a particular Service that is 2249 * currently running in the system. 2250 */ 2251 public static class RunningServiceInfo implements Parcelable { 2252 /** 2253 * The service component. 2254 */ 2255 public ComponentName service; 2256 2257 /** 2258 * If non-zero, this is the process the service is running in. 2259 */ 2260 public int pid; 2261 2262 /** 2263 * The UID that owns this service. 2264 */ 2265 public int uid; 2266 2267 /** 2268 * The name of the process this service runs in. 2269 */ 2270 public String process; 2271 2272 /** 2273 * Set to true if the service has asked to run as a foreground process. 2274 */ 2275 public boolean foreground; 2276 2277 /** 2278 * The time when the service was first made active, either by someone 2279 * starting or binding to it. This 2280 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2281 */ 2282 public long activeSince; 2283 2284 /** 2285 * Set to true if this service has been explicitly started. 2286 */ 2287 public boolean started; 2288 2289 /** 2290 * Number of clients connected to the service. 2291 */ 2292 public int clientCount; 2293 2294 /** 2295 * Number of times the service's process has crashed while the service 2296 * is running. 2297 */ 2298 public int crashCount; 2299 2300 /** 2301 * The time when there was last activity in the service (either 2302 * explicit requests to start it or clients binding to it). This 2303 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2304 */ 2305 public long lastActivityTime; 2306 2307 /** 2308 * If non-zero, this service is not currently running, but scheduled to 2309 * restart at the given time. 2310 */ 2311 public long restarting; 2312 2313 /** 2314 * Bit for {@link #flags}: set if this service has been 2315 * explicitly started. 2316 */ 2317 public static final int FLAG_STARTED = 1<<0; 2318 2319 /** 2320 * Bit for {@link #flags}: set if the service has asked to 2321 * run as a foreground process. 2322 */ 2323 public static final int FLAG_FOREGROUND = 1<<1; 2324 2325 /** 2326 * Bit for {@link #flags): set if the service is running in a 2327 * core system process. 2328 */ 2329 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2330 2331 /** 2332 * Bit for {@link #flags): set if the service is running in a 2333 * persistent process. 2334 */ 2335 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2336 2337 /** 2338 * Running flags. 2339 */ 2340 public int flags; 2341 2342 /** 2343 * For special services that are bound to by system code, this is 2344 * the package that holds the binding. 2345 */ 2346 public String clientPackage; 2347 2348 /** 2349 * For special services that are bound to by system code, this is 2350 * a string resource providing a user-visible label for who the 2351 * client is. 2352 */ 2353 public int clientLabel; 2354 2355 public RunningServiceInfo() { 2356 } 2357 2358 public int describeContents() { 2359 return 0; 2360 } 2361 2362 public void writeToParcel(Parcel dest, int flags) { 2363 ComponentName.writeToParcel(service, dest); 2364 dest.writeInt(pid); 2365 dest.writeInt(uid); 2366 dest.writeString(process); 2367 dest.writeInt(foreground ? 1 : 0); 2368 dest.writeLong(activeSince); 2369 dest.writeInt(started ? 1 : 0); 2370 dest.writeInt(clientCount); 2371 dest.writeInt(crashCount); 2372 dest.writeLong(lastActivityTime); 2373 dest.writeLong(restarting); 2374 dest.writeInt(this.flags); 2375 dest.writeString(clientPackage); 2376 dest.writeInt(clientLabel); 2377 } 2378 2379 public void readFromParcel(Parcel source) { 2380 service = ComponentName.readFromParcel(source); 2381 pid = source.readInt(); 2382 uid = source.readInt(); 2383 process = source.readString(); 2384 foreground = source.readInt() != 0; 2385 activeSince = source.readLong(); 2386 started = source.readInt() != 0; 2387 clientCount = source.readInt(); 2388 crashCount = source.readInt(); 2389 lastActivityTime = source.readLong(); 2390 restarting = source.readLong(); 2391 flags = source.readInt(); 2392 clientPackage = source.readString(); 2393 clientLabel = source.readInt(); 2394 } 2395 2396 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2397 public RunningServiceInfo createFromParcel(Parcel source) { 2398 return new RunningServiceInfo(source); 2399 } 2400 public RunningServiceInfo[] newArray(int size) { 2401 return new RunningServiceInfo[size]; 2402 } 2403 }; 2404 2405 private RunningServiceInfo(Parcel source) { 2406 readFromParcel(source); 2407 } 2408 } 2409 2410 /** 2411 * Return a list of the services that are currently running. 2412 * 2413 * <p><b>Note: this method is only intended for debugging or implementing 2414 * service management type user interfaces.</b></p> 2415 * 2416 * @param maxNum The maximum number of entries to return in the list. The 2417 * actual number returned may be smaller, depending on how many services 2418 * are running. 2419 * 2420 * @return Returns a list of RunningServiceInfo records describing each of 2421 * the running tasks. 2422 */ 2423 public List<RunningServiceInfo> getRunningServices(int maxNum) 2424 throws SecurityException { 2425 try { 2426 return getService() 2427 .getServices(maxNum, 0); 2428 } catch (RemoteException e) { 2429 throw e.rethrowFromSystemServer(); 2430 } 2431 } 2432 2433 /** 2434 * Returns a PendingIntent you can start to show a control panel for the 2435 * given running service. If the service does not have a control panel, 2436 * null is returned. 2437 */ 2438 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2439 throws SecurityException { 2440 try { 2441 return getService() 2442 .getRunningServiceControlPanel(service); 2443 } catch (RemoteException e) { 2444 throw e.rethrowFromSystemServer(); 2445 } 2446 } 2447 2448 /** 2449 * Information you can retrieve about the available memory through 2450 * {@link ActivityManager#getMemoryInfo}. 2451 */ 2452 public static class MemoryInfo implements Parcelable { 2453 /** 2454 * The available memory on the system. This number should not 2455 * be considered absolute: due to the nature of the kernel, a significant 2456 * portion of this memory is actually in use and needed for the overall 2457 * system to run well. 2458 */ 2459 public long availMem; 2460 2461 /** 2462 * The total memory accessible by the kernel. This is basically the 2463 * RAM size of the device, not including below-kernel fixed allocations 2464 * like DMA buffers, RAM for the baseband CPU, etc. 2465 */ 2466 public long totalMem; 2467 2468 /** 2469 * The threshold of {@link #availMem} at which we consider memory to be 2470 * low and start killing background services and other non-extraneous 2471 * processes. 2472 */ 2473 public long threshold; 2474 2475 /** 2476 * Set to true if the system considers itself to currently be in a low 2477 * memory situation. 2478 */ 2479 public boolean lowMemory; 2480 2481 /** @hide */ 2482 public long hiddenAppThreshold; 2483 /** @hide */ 2484 public long secondaryServerThreshold; 2485 /** @hide */ 2486 public long visibleAppThreshold; 2487 /** @hide */ 2488 public long foregroundAppThreshold; 2489 2490 public MemoryInfo() { 2491 } 2492 2493 public int describeContents() { 2494 return 0; 2495 } 2496 2497 public void writeToParcel(Parcel dest, int flags) { 2498 dest.writeLong(availMem); 2499 dest.writeLong(totalMem); 2500 dest.writeLong(threshold); 2501 dest.writeInt(lowMemory ? 1 : 0); 2502 dest.writeLong(hiddenAppThreshold); 2503 dest.writeLong(secondaryServerThreshold); 2504 dest.writeLong(visibleAppThreshold); 2505 dest.writeLong(foregroundAppThreshold); 2506 } 2507 2508 public void readFromParcel(Parcel source) { 2509 availMem = source.readLong(); 2510 totalMem = source.readLong(); 2511 threshold = source.readLong(); 2512 lowMemory = source.readInt() != 0; 2513 hiddenAppThreshold = source.readLong(); 2514 secondaryServerThreshold = source.readLong(); 2515 visibleAppThreshold = source.readLong(); 2516 foregroundAppThreshold = source.readLong(); 2517 } 2518 2519 public static final Creator<MemoryInfo> CREATOR 2520 = new Creator<MemoryInfo>() { 2521 public MemoryInfo createFromParcel(Parcel source) { 2522 return new MemoryInfo(source); 2523 } 2524 public MemoryInfo[] newArray(int size) { 2525 return new MemoryInfo[size]; 2526 } 2527 }; 2528 2529 private MemoryInfo(Parcel source) { 2530 readFromParcel(source); 2531 } 2532 } 2533 2534 /** 2535 * Return general information about the memory state of the system. This 2536 * can be used to help decide how to manage your own memory, though note 2537 * that polling is not recommended and 2538 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2539 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2540 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2541 * level of your process as needed, which gives a better hint for how to 2542 * manage its memory. 2543 */ 2544 public void getMemoryInfo(MemoryInfo outInfo) { 2545 try { 2546 getService().getMemoryInfo(outInfo); 2547 } catch (RemoteException e) { 2548 throw e.rethrowFromSystemServer(); 2549 } 2550 } 2551 2552 /** 2553 * Information you can retrieve about an ActivityStack in the system. 2554 * @hide 2555 */ 2556 public static class StackInfo implements Parcelable { 2557 public int stackId; 2558 public Rect bounds = new Rect(); 2559 public int[] taskIds; 2560 public String[] taskNames; 2561 public Rect[] taskBounds; 2562 public int[] taskUserIds; 2563 public ComponentName topActivity; 2564 public int displayId; 2565 public int userId; 2566 public boolean visible; 2567 // Index of the stack in the display's stack list, can be used for comparison of stack order 2568 public int position; 2569 2570 @Override 2571 public int describeContents() { 2572 return 0; 2573 } 2574 2575 @Override 2576 public void writeToParcel(Parcel dest, int flags) { 2577 dest.writeInt(stackId); 2578 dest.writeInt(bounds.left); 2579 dest.writeInt(bounds.top); 2580 dest.writeInt(bounds.right); 2581 dest.writeInt(bounds.bottom); 2582 dest.writeIntArray(taskIds); 2583 dest.writeStringArray(taskNames); 2584 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2585 dest.writeInt(boundsCount); 2586 for (int i = 0; i < boundsCount; i++) { 2587 dest.writeInt(taskBounds[i].left); 2588 dest.writeInt(taskBounds[i].top); 2589 dest.writeInt(taskBounds[i].right); 2590 dest.writeInt(taskBounds[i].bottom); 2591 } 2592 dest.writeIntArray(taskUserIds); 2593 dest.writeInt(displayId); 2594 dest.writeInt(userId); 2595 dest.writeInt(visible ? 1 : 0); 2596 dest.writeInt(position); 2597 if (topActivity != null) { 2598 dest.writeInt(1); 2599 topActivity.writeToParcel(dest, 0); 2600 } else { 2601 dest.writeInt(0); 2602 } 2603 } 2604 2605 public void readFromParcel(Parcel source) { 2606 stackId = source.readInt(); 2607 bounds = new Rect( 2608 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2609 taskIds = source.createIntArray(); 2610 taskNames = source.createStringArray(); 2611 final int boundsCount = source.readInt(); 2612 if (boundsCount > 0) { 2613 taskBounds = new Rect[boundsCount]; 2614 for (int i = 0; i < boundsCount; i++) { 2615 taskBounds[i] = new Rect(); 2616 taskBounds[i].set( 2617 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2618 } 2619 } else { 2620 taskBounds = null; 2621 } 2622 taskUserIds = source.createIntArray(); 2623 displayId = source.readInt(); 2624 userId = source.readInt(); 2625 visible = source.readInt() > 0; 2626 position = source.readInt(); 2627 if (source.readInt() > 0) { 2628 topActivity = ComponentName.readFromParcel(source); 2629 } 2630 } 2631 2632 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2633 @Override 2634 public StackInfo createFromParcel(Parcel source) { 2635 return new StackInfo(source); 2636 } 2637 @Override 2638 public StackInfo[] newArray(int size) { 2639 return new StackInfo[size]; 2640 } 2641 }; 2642 2643 public StackInfo() { 2644 } 2645 2646 private StackInfo(Parcel source) { 2647 readFromParcel(source); 2648 } 2649 2650 public String toString(String prefix) { 2651 StringBuilder sb = new StringBuilder(256); 2652 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2653 sb.append(" bounds="); sb.append(bounds.toShortString()); 2654 sb.append(" displayId="); sb.append(displayId); 2655 sb.append(" userId="); sb.append(userId); 2656 sb.append("\n"); 2657 prefix = prefix + " "; 2658 for (int i = 0; i < taskIds.length; ++i) { 2659 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2660 sb.append(": "); sb.append(taskNames[i]); 2661 if (taskBounds != null) { 2662 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2663 } 2664 sb.append(" userId=").append(taskUserIds[i]); 2665 sb.append(" visible=").append(visible); 2666 if (topActivity != null) { 2667 sb.append(" topActivity=").append(topActivity); 2668 } 2669 sb.append("\n"); 2670 } 2671 return sb.toString(); 2672 } 2673 2674 @Override 2675 public String toString() { 2676 return toString(""); 2677 } 2678 } 2679 2680 /** 2681 * @hide 2682 */ 2683 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2684 try { 2685 return getService().clearApplicationUserData(packageName, 2686 observer, UserHandle.myUserId()); 2687 } catch (RemoteException e) { 2688 throw e.rethrowFromSystemServer(); 2689 } 2690 } 2691 2692 /** 2693 * Permits an application to erase its own data from disk. This is equivalent to 2694 * the user choosing to clear the app's data from within the device settings UI. It 2695 * erases all dynamic data associated with the app -- its private data and data in its 2696 * private area on external storage -- but does not remove the installed application 2697 * itself, nor any OBB files. 2698 * 2699 * @return {@code true} if the application successfully requested that the application's 2700 * data be erased; {@code false} otherwise. 2701 */ 2702 public boolean clearApplicationUserData() { 2703 return clearApplicationUserData(mContext.getPackageName(), null); 2704 } 2705 2706 2707 /** 2708 * Permits an application to get the persistent URI permissions granted to another. 2709 * 2710 * <p>Typically called by Settings. 2711 * 2712 * @param packageName application to look for the granted permissions 2713 * @return list of granted URI permissions 2714 * 2715 * @hide 2716 */ 2717 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2718 try { 2719 return getService().getGrantedUriPermissions(packageName, 2720 UserHandle.myUserId()); 2721 } catch (RemoteException e) { 2722 throw e.rethrowFromSystemServer(); 2723 } 2724 } 2725 2726 /** 2727 * Permits an application to clear the persistent URI permissions granted to another. 2728 * 2729 * <p>Typically called by Settings. 2730 * 2731 * @param packageName application to clear its granted permissions 2732 * 2733 * @hide 2734 */ 2735 public void clearGrantedUriPermissions(String packageName) { 2736 try { 2737 getService().clearGrantedUriPermissions(packageName, 2738 UserHandle.myUserId()); 2739 } catch (RemoteException e) { 2740 throw e.rethrowFromSystemServer(); 2741 } 2742 } 2743 2744 /** 2745 * Information you can retrieve about any processes that are in an error condition. 2746 */ 2747 public static class ProcessErrorStateInfo implements Parcelable { 2748 /** 2749 * Condition codes 2750 */ 2751 public static final int NO_ERROR = 0; 2752 public static final int CRASHED = 1; 2753 public static final int NOT_RESPONDING = 2; 2754 2755 /** 2756 * The condition that the process is in. 2757 */ 2758 public int condition; 2759 2760 /** 2761 * The process name in which the crash or error occurred. 2762 */ 2763 public String processName; 2764 2765 /** 2766 * The pid of this process; 0 if none 2767 */ 2768 public int pid; 2769 2770 /** 2771 * The kernel user-ID that has been assigned to this process; 2772 * currently this is not a unique ID (multiple applications can have 2773 * the same uid). 2774 */ 2775 public int uid; 2776 2777 /** 2778 * The activity name associated with the error, if known. May be null. 2779 */ 2780 public String tag; 2781 2782 /** 2783 * A short message describing the error condition. 2784 */ 2785 public String shortMsg; 2786 2787 /** 2788 * A long message describing the error condition. 2789 */ 2790 public String longMsg; 2791 2792 /** 2793 * The stack trace where the error originated. May be null. 2794 */ 2795 public String stackTrace; 2796 2797 /** 2798 * to be deprecated: This value will always be null. 2799 */ 2800 public byte[] crashData = null; 2801 2802 public ProcessErrorStateInfo() { 2803 } 2804 2805 @Override 2806 public int describeContents() { 2807 return 0; 2808 } 2809 2810 @Override 2811 public void writeToParcel(Parcel dest, int flags) { 2812 dest.writeInt(condition); 2813 dest.writeString(processName); 2814 dest.writeInt(pid); 2815 dest.writeInt(uid); 2816 dest.writeString(tag); 2817 dest.writeString(shortMsg); 2818 dest.writeString(longMsg); 2819 dest.writeString(stackTrace); 2820 } 2821 2822 public void readFromParcel(Parcel source) { 2823 condition = source.readInt(); 2824 processName = source.readString(); 2825 pid = source.readInt(); 2826 uid = source.readInt(); 2827 tag = source.readString(); 2828 shortMsg = source.readString(); 2829 longMsg = source.readString(); 2830 stackTrace = source.readString(); 2831 } 2832 2833 public static final Creator<ProcessErrorStateInfo> CREATOR = 2834 new Creator<ProcessErrorStateInfo>() { 2835 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2836 return new ProcessErrorStateInfo(source); 2837 } 2838 public ProcessErrorStateInfo[] newArray(int size) { 2839 return new ProcessErrorStateInfo[size]; 2840 } 2841 }; 2842 2843 private ProcessErrorStateInfo(Parcel source) { 2844 readFromParcel(source); 2845 } 2846 } 2847 2848 /** 2849 * Returns a list of any processes that are currently in an error condition. The result 2850 * will be null if all processes are running properly at this time. 2851 * 2852 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2853 * current error conditions (it will not return an empty list). This list ordering is not 2854 * specified. 2855 */ 2856 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2857 try { 2858 return getService().getProcessesInErrorState(); 2859 } catch (RemoteException e) { 2860 throw e.rethrowFromSystemServer(); 2861 } 2862 } 2863 2864 /** 2865 * Information you can retrieve about a running process. 2866 */ 2867 public static class RunningAppProcessInfo implements Parcelable { 2868 /** 2869 * The name of the process that this object is associated with 2870 */ 2871 public String processName; 2872 2873 /** 2874 * The pid of this process; 0 if none 2875 */ 2876 public int pid; 2877 2878 /** 2879 * The user id of this process. 2880 */ 2881 public int uid; 2882 2883 /** 2884 * All packages that have been loaded into the process. 2885 */ 2886 public String pkgList[]; 2887 2888 /** 2889 * Constant for {@link #flags}: this is an app that is unable to 2890 * correctly save its state when going to the background, 2891 * so it can not be killed while in the background. 2892 * @hide 2893 */ 2894 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2895 2896 /** 2897 * Constant for {@link #flags}: this process is associated with a 2898 * persistent system app. 2899 * @hide 2900 */ 2901 public static final int FLAG_PERSISTENT = 1<<1; 2902 2903 /** 2904 * Constant for {@link #flags}: this process is associated with a 2905 * persistent system app. 2906 * @hide 2907 */ 2908 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2909 2910 /** 2911 * Flags of information. May be any of 2912 * {@link #FLAG_CANT_SAVE_STATE}. 2913 * @hide 2914 */ 2915 public int flags; 2916 2917 /** 2918 * Last memory trim level reported to the process: corresponds to 2919 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2920 * ComponentCallbacks2.onTrimMemory(int)}. 2921 */ 2922 public int lastTrimLevel; 2923 2924 /** 2925 * Constant for {@link #importance}: This process is running the 2926 * foreground UI; that is, it is the thing currently at the top of the screen 2927 * that the user is interacting with. 2928 */ 2929 public static final int IMPORTANCE_FOREGROUND = 100; 2930 2931 /** 2932 * Constant for {@link #importance}: This process is running a foreground 2933 * service, for example to perform music playback even while the user is 2934 * not immediately in the app. This generally indicates that the process 2935 * is doing something the user actively cares about. 2936 */ 2937 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2938 2939 /** 2940 * Constant for {@link #importance}: This process is running the foreground 2941 * UI, but the device is asleep so it is not visible to the user. This means 2942 * the user is not really aware of the process, because they can not see or 2943 * interact with it, but it is quite important because it what they expect to 2944 * return to once unlocking the device. 2945 */ 2946 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2947 2948 /** 2949 * Constant for {@link #importance}: This process is running something 2950 * that is actively visible to the user, though not in the immediate 2951 * foreground. This may be running a window that is behind the current 2952 * foreground (so paused and with its state saved, not interacting with 2953 * the user, but visible to them to some degree); it may also be running 2954 * other services under the system's control that it inconsiders important. 2955 */ 2956 public static final int IMPORTANCE_VISIBLE = 200; 2957 2958 /** 2959 * Constant for {@link #importance}: This process is not something the user 2960 * is directly aware of, but is otherwise perceptable to them to some degree. 2961 */ 2962 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2963 2964 /** 2965 * Constant for {@link #importance}: This process is running an 2966 * application that can not save its state, and thus can't be killed 2967 * while in the background. 2968 * @hide 2969 */ 2970 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2971 2972 /** 2973 * Constant for {@link #importance}: This process is contains services 2974 * that should remain running. These are background services apps have 2975 * started, not something the user is aware of, so they may be killed by 2976 * the system relatively freely (though it is generally desired that they 2977 * stay running as long as they want to). 2978 */ 2979 public static final int IMPORTANCE_SERVICE = 300; 2980 2981 /** 2982 * Constant for {@link #importance}: This process process contains 2983 * background code that is expendable. 2984 */ 2985 public static final int IMPORTANCE_BACKGROUND = 400; 2986 2987 /** 2988 * Constant for {@link #importance}: This process is empty of any 2989 * actively running code. 2990 */ 2991 public static final int IMPORTANCE_EMPTY = 500; 2992 2993 /** 2994 * Constant for {@link #importance}: This process does not exist. 2995 */ 2996 public static final int IMPORTANCE_GONE = 1000; 2997 2998 /** @hide */ 2999 public static int procStateToImportance(int procState) { 3000 if (procState == PROCESS_STATE_NONEXISTENT) { 3001 return IMPORTANCE_GONE; 3002 } else if (procState >= PROCESS_STATE_HOME) { 3003 return IMPORTANCE_BACKGROUND; 3004 } else if (procState >= PROCESS_STATE_SERVICE) { 3005 return IMPORTANCE_SERVICE; 3006 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3007 return IMPORTANCE_CANT_SAVE_STATE; 3008 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3009 return IMPORTANCE_PERCEPTIBLE; 3010 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3011 return IMPORTANCE_VISIBLE; 3012 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3013 return IMPORTANCE_TOP_SLEEPING; 3014 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3015 return IMPORTANCE_FOREGROUND_SERVICE; 3016 } else { 3017 return IMPORTANCE_FOREGROUND; 3018 } 3019 } 3020 3021 /** @hide */ 3022 public static int importanceToProcState(int importance) { 3023 if (importance == IMPORTANCE_GONE) { 3024 return PROCESS_STATE_NONEXISTENT; 3025 } else if (importance >= IMPORTANCE_BACKGROUND) { 3026 return PROCESS_STATE_HOME; 3027 } else if (importance >= IMPORTANCE_SERVICE) { 3028 return PROCESS_STATE_SERVICE; 3029 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3030 return PROCESS_STATE_HEAVY_WEIGHT; 3031 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3032 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3033 } else if (importance >= IMPORTANCE_VISIBLE) { 3034 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3035 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3036 return PROCESS_STATE_TOP_SLEEPING; 3037 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3038 return PROCESS_STATE_FOREGROUND_SERVICE; 3039 } else { 3040 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3041 } 3042 } 3043 3044 /** 3045 * The relative importance level that the system places on this 3046 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3047 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 3048 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 3049 * constants are numbered so that "more important" values are always 3050 * smaller than "less important" values. 3051 */ 3052 public int importance; 3053 3054 /** 3055 * An additional ordering within a particular {@link #importance} 3056 * category, providing finer-grained information about the relative 3057 * utility of processes within a category. This number means nothing 3058 * except that a smaller values are more recently used (and thus 3059 * more important). Currently an LRU value is only maintained for 3060 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 3061 * be maintained in the future. 3062 */ 3063 public int lru; 3064 3065 /** 3066 * Constant for {@link #importanceReasonCode}: nothing special has 3067 * been specified for the reason for this level. 3068 */ 3069 public static final int REASON_UNKNOWN = 0; 3070 3071 /** 3072 * Constant for {@link #importanceReasonCode}: one of the application's 3073 * content providers is being used by another process. The pid of 3074 * the client process is in {@link #importanceReasonPid} and the 3075 * target provider in this process is in 3076 * {@link #importanceReasonComponent}. 3077 */ 3078 public static final int REASON_PROVIDER_IN_USE = 1; 3079 3080 /** 3081 * Constant for {@link #importanceReasonCode}: one of the application's 3082 * content providers is being used by another process. The pid of 3083 * the client process is in {@link #importanceReasonPid} and the 3084 * target provider in this process is in 3085 * {@link #importanceReasonComponent}. 3086 */ 3087 public static final int REASON_SERVICE_IN_USE = 2; 3088 3089 /** 3090 * The reason for {@link #importance}, if any. 3091 */ 3092 public int importanceReasonCode; 3093 3094 /** 3095 * For the specified values of {@link #importanceReasonCode}, this 3096 * is the process ID of the other process that is a client of this 3097 * process. This will be 0 if no other process is using this one. 3098 */ 3099 public int importanceReasonPid; 3100 3101 /** 3102 * For the specified values of {@link #importanceReasonCode}, this 3103 * is the name of the component that is being used in this process. 3104 */ 3105 public ComponentName importanceReasonComponent; 3106 3107 /** 3108 * When {@link #importanceReasonPid} is non-0, this is the importance 3109 * of the other pid. @hide 3110 */ 3111 public int importanceReasonImportance; 3112 3113 /** 3114 * Current process state, as per PROCESS_STATE_* constants. 3115 * @hide 3116 */ 3117 public int processState; 3118 3119 public RunningAppProcessInfo() { 3120 importance = IMPORTANCE_FOREGROUND; 3121 importanceReasonCode = REASON_UNKNOWN; 3122 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3123 } 3124 3125 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3126 processName = pProcessName; 3127 pid = pPid; 3128 pkgList = pArr; 3129 } 3130 3131 public int describeContents() { 3132 return 0; 3133 } 3134 3135 public void writeToParcel(Parcel dest, int flags) { 3136 dest.writeString(processName); 3137 dest.writeInt(pid); 3138 dest.writeInt(uid); 3139 dest.writeStringArray(pkgList); 3140 dest.writeInt(this.flags); 3141 dest.writeInt(lastTrimLevel); 3142 dest.writeInt(importance); 3143 dest.writeInt(lru); 3144 dest.writeInt(importanceReasonCode); 3145 dest.writeInt(importanceReasonPid); 3146 ComponentName.writeToParcel(importanceReasonComponent, dest); 3147 dest.writeInt(importanceReasonImportance); 3148 dest.writeInt(processState); 3149 } 3150 3151 public void readFromParcel(Parcel source) { 3152 processName = source.readString(); 3153 pid = source.readInt(); 3154 uid = source.readInt(); 3155 pkgList = source.readStringArray(); 3156 flags = source.readInt(); 3157 lastTrimLevel = source.readInt(); 3158 importance = source.readInt(); 3159 lru = source.readInt(); 3160 importanceReasonCode = source.readInt(); 3161 importanceReasonPid = source.readInt(); 3162 importanceReasonComponent = ComponentName.readFromParcel(source); 3163 importanceReasonImportance = source.readInt(); 3164 processState = source.readInt(); 3165 } 3166 3167 public static final Creator<RunningAppProcessInfo> CREATOR = 3168 new Creator<RunningAppProcessInfo>() { 3169 public RunningAppProcessInfo createFromParcel(Parcel source) { 3170 return new RunningAppProcessInfo(source); 3171 } 3172 public RunningAppProcessInfo[] newArray(int size) { 3173 return new RunningAppProcessInfo[size]; 3174 } 3175 }; 3176 3177 private RunningAppProcessInfo(Parcel source) { 3178 readFromParcel(source); 3179 } 3180 } 3181 3182 /** 3183 * Returns a list of application processes installed on external media 3184 * that are running on the device. 3185 * 3186 * <p><b>Note: this method is only intended for debugging or building 3187 * a user-facing process management UI.</b></p> 3188 * 3189 * @return Returns a list of ApplicationInfo records, or null if none 3190 * This list ordering is not specified. 3191 * @hide 3192 */ 3193 public List<ApplicationInfo> getRunningExternalApplications() { 3194 try { 3195 return getService().getRunningExternalApplications(); 3196 } catch (RemoteException e) { 3197 throw e.rethrowFromSystemServer(); 3198 } 3199 } 3200 3201 /** 3202 * Sets the memory trim mode for a process and schedules a memory trim operation. 3203 * 3204 * <p><b>Note: this method is only intended for testing framework.</b></p> 3205 * 3206 * @return Returns true if successful. 3207 * @hide 3208 */ 3209 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3210 try { 3211 return getService().setProcessMemoryTrimLevel(process, userId, 3212 level); 3213 } catch (RemoteException e) { 3214 throw e.rethrowFromSystemServer(); 3215 } 3216 } 3217 3218 /** 3219 * Returns a list of application processes that are running on the device. 3220 * 3221 * <p><b>Note: this method is only intended for debugging or building 3222 * a user-facing process management UI.</b></p> 3223 * 3224 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3225 * running processes (it will not return an empty list). This list ordering is not 3226 * specified. 3227 */ 3228 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3229 try { 3230 return getService().getRunningAppProcesses(); 3231 } catch (RemoteException e) { 3232 throw e.rethrowFromSystemServer(); 3233 } 3234 } 3235 3236 /** 3237 * Return the importance of a given package name, based on the processes that are 3238 * currently running. The return value is one of the importance constants defined 3239 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3240 * processes that this package has code running inside of. If there are no processes 3241 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3242 * @hide 3243 */ 3244 @SystemApi @TestApi 3245 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3246 public int getPackageImportance(String packageName) { 3247 try { 3248 int procState = getService().getPackageProcessState(packageName, 3249 mContext.getOpPackageName()); 3250 return RunningAppProcessInfo.procStateToImportance(procState); 3251 } catch (RemoteException e) { 3252 throw e.rethrowFromSystemServer(); 3253 } 3254 } 3255 3256 /** 3257 * Callback to get reports about changes to the importance of a uid. Use with 3258 * {@link #addOnUidImportanceListener}. 3259 * @hide 3260 */ 3261 @SystemApi @TestApi 3262 public interface OnUidImportanceListener { 3263 /** 3264 * The importance if a given uid has changed. Will be one of the importance 3265 * values in {@link RunningAppProcessInfo}; 3266 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3267 * when the uid is no longer running at all. This callback will happen on a thread 3268 * from a thread pool, not the main UI thread. 3269 * @param uid The uid whose importance has changed. 3270 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3271 */ 3272 void onUidImportance(int uid, int importance); 3273 } 3274 3275 /** 3276 * Start monitoring changes to the imoportance of uids running in the system. 3277 * @param listener The listener callback that will receive change reports. 3278 * @param importanceCutpoint The level of importance in which the caller is interested 3279 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3280 * is used here, you will receive a call each time a uids importance transitions between 3281 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3282 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3283 * 3284 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3285 * permission to use this feature.</p> 3286 * 3287 * @throws IllegalArgumentException If the listener is already registered. 3288 * @throws SecurityException If the caller does not hold 3289 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3290 * @hide 3291 */ 3292 @SystemApi @TestApi 3293 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3294 int importanceCutpoint) { 3295 synchronized (this) { 3296 if (mImportanceListeners.containsKey(listener)) { 3297 throw new IllegalArgumentException("Listener already registered: " + listener); 3298 } 3299 // TODO: implement the cut point in the system process to avoid IPCs. 3300 UidObserver observer = new UidObserver(listener); 3301 try { 3302 getService().registerUidObserver(observer, 3303 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3304 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3305 mContext.getOpPackageName()); 3306 } catch (RemoteException e) { 3307 throw e.rethrowFromSystemServer(); 3308 } 3309 mImportanceListeners.put(listener, observer); 3310 } 3311 } 3312 3313 /** 3314 * Remove an importance listener that was previously registered with 3315 * {@link #addOnUidImportanceListener}. 3316 * 3317 * @throws IllegalArgumentException If the listener is not registered. 3318 * @hide 3319 */ 3320 @SystemApi @TestApi 3321 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3322 synchronized (this) { 3323 UidObserver observer = mImportanceListeners.remove(listener); 3324 if (observer == null) { 3325 throw new IllegalArgumentException("Listener not registered: " + listener); 3326 } 3327 try { 3328 getService().unregisterUidObserver(observer); 3329 } catch (RemoteException e) { 3330 throw e.rethrowFromSystemServer(); 3331 } 3332 } 3333 } 3334 3335 /** 3336 * Return global memory state information for the calling process. This 3337 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3338 * only fields that will be filled in are 3339 * {@link RunningAppProcessInfo#pid}, 3340 * {@link RunningAppProcessInfo#uid}, 3341 * {@link RunningAppProcessInfo#lastTrimLevel}, 3342 * {@link RunningAppProcessInfo#importance}, 3343 * {@link RunningAppProcessInfo#lru}, and 3344 * {@link RunningAppProcessInfo#importanceReasonCode}. 3345 */ 3346 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3347 try { 3348 getService().getMyMemoryState(outState); 3349 } catch (RemoteException e) { 3350 throw e.rethrowFromSystemServer(); 3351 } 3352 } 3353 3354 /** 3355 * Return information about the memory usage of one or more processes. 3356 * 3357 * <p><b>Note: this method is only intended for debugging or building 3358 * a user-facing process management UI.</b></p> 3359 * 3360 * @param pids The pids of the processes whose memory usage is to be 3361 * retrieved. 3362 * @return Returns an array of memory information, one for each 3363 * requested pid. 3364 */ 3365 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3366 try { 3367 return getService().getProcessMemoryInfo(pids); 3368 } catch (RemoteException e) { 3369 throw e.rethrowFromSystemServer(); 3370 } 3371 } 3372 3373 /** 3374 * @deprecated This is now just a wrapper for 3375 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3376 * is no longer available to applications because it allows them to 3377 * break other applications by removing their alarms, stopping their 3378 * services, etc. 3379 */ 3380 @Deprecated 3381 public void restartPackage(String packageName) { 3382 killBackgroundProcesses(packageName); 3383 } 3384 3385 /** 3386 * Have the system immediately kill all background processes associated 3387 * with the given package. This is the same as the kernel killing those 3388 * processes to reclaim memory; the system will take care of restarting 3389 * these processes in the future as needed. 3390 * 3391 * <p>You must hold the permission 3392 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3393 * call this method. 3394 * 3395 * @param packageName The name of the package whose processes are to 3396 * be killed. 3397 */ 3398 public void killBackgroundProcesses(String packageName) { 3399 try { 3400 getService().killBackgroundProcesses(packageName, 3401 UserHandle.myUserId()); 3402 } catch (RemoteException e) { 3403 throw e.rethrowFromSystemServer(); 3404 } 3405 } 3406 3407 /** 3408 * Kills the specified UID. 3409 * @param uid The UID to kill. 3410 * @param reason The reason for the kill. 3411 * 3412 * @hide 3413 */ 3414 @SystemApi 3415 @RequiresPermission(Manifest.permission.KILL_UID) 3416 public void killUid(int uid, String reason) { 3417 try { 3418 getService().killUid(UserHandle.getAppId(uid), 3419 UserHandle.getUserId(uid), reason); 3420 } catch (RemoteException e) { 3421 throw e.rethrowFromSystemServer(); 3422 } 3423 } 3424 3425 /** 3426 * Have the system perform a force stop of everything associated with 3427 * the given application package. All processes that share its uid 3428 * will be killed, all services it has running stopped, all activities 3429 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3430 * broadcast will be sent, so that any of its registered alarms can 3431 * be stopped, notifications removed, etc. 3432 * 3433 * <p>You must hold the permission 3434 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3435 * call this method. 3436 * 3437 * @param packageName The name of the package to be stopped. 3438 * @param userId The user for which the running package is to be stopped. 3439 * 3440 * @hide This is not available to third party applications due to 3441 * it allowing them to break other applications by stopping their 3442 * services, removing their alarms, etc. 3443 */ 3444 public void forceStopPackageAsUser(String packageName, int userId) { 3445 try { 3446 getService().forceStopPackage(packageName, userId); 3447 } catch (RemoteException e) { 3448 throw e.rethrowFromSystemServer(); 3449 } 3450 } 3451 3452 /** 3453 * @see #forceStopPackageAsUser(String, int) 3454 * @hide 3455 */ 3456 @SystemApi 3457 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3458 public void forceStopPackage(String packageName) { 3459 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3460 } 3461 3462 /** 3463 * Get the device configuration attributes. 3464 */ 3465 public ConfigurationInfo getDeviceConfigurationInfo() { 3466 try { 3467 return getService().getDeviceConfigurationInfo(); 3468 } catch (RemoteException e) { 3469 throw e.rethrowFromSystemServer(); 3470 } 3471 } 3472 3473 /** 3474 * Get the preferred density of icons for the launcher. This is used when 3475 * custom drawables are created (e.g., for shortcuts). 3476 * 3477 * @return density in terms of DPI 3478 */ 3479 public int getLauncherLargeIconDensity() { 3480 final Resources res = mContext.getResources(); 3481 final int density = res.getDisplayMetrics().densityDpi; 3482 final int sw = res.getConfiguration().smallestScreenWidthDp; 3483 3484 if (sw < 600) { 3485 // Smaller than approx 7" tablets, use the regular icon size. 3486 return density; 3487 } 3488 3489 switch (density) { 3490 case DisplayMetrics.DENSITY_LOW: 3491 return DisplayMetrics.DENSITY_MEDIUM; 3492 case DisplayMetrics.DENSITY_MEDIUM: 3493 return DisplayMetrics.DENSITY_HIGH; 3494 case DisplayMetrics.DENSITY_TV: 3495 return DisplayMetrics.DENSITY_XHIGH; 3496 case DisplayMetrics.DENSITY_HIGH: 3497 return DisplayMetrics.DENSITY_XHIGH; 3498 case DisplayMetrics.DENSITY_XHIGH: 3499 return DisplayMetrics.DENSITY_XXHIGH; 3500 case DisplayMetrics.DENSITY_XXHIGH: 3501 return DisplayMetrics.DENSITY_XHIGH * 2; 3502 default: 3503 // The density is some abnormal value. Return some other 3504 // abnormal value that is a reasonable scaling of it. 3505 return (int)((density*1.5f)+.5f); 3506 } 3507 } 3508 3509 /** 3510 * Get the preferred launcher icon size. This is used when custom drawables 3511 * are created (e.g., for shortcuts). 3512 * 3513 * @return dimensions of square icons in terms of pixels 3514 */ 3515 public int getLauncherLargeIconSize() { 3516 return getLauncherLargeIconSizeInner(mContext); 3517 } 3518 3519 static int getLauncherLargeIconSizeInner(Context context) { 3520 final Resources res = context.getResources(); 3521 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3522 final int sw = res.getConfiguration().smallestScreenWidthDp; 3523 3524 if (sw < 600) { 3525 // Smaller than approx 7" tablets, use the regular icon size. 3526 return size; 3527 } 3528 3529 final int density = res.getDisplayMetrics().densityDpi; 3530 3531 switch (density) { 3532 case DisplayMetrics.DENSITY_LOW: 3533 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3534 case DisplayMetrics.DENSITY_MEDIUM: 3535 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3536 case DisplayMetrics.DENSITY_TV: 3537 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3538 case DisplayMetrics.DENSITY_HIGH: 3539 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3540 case DisplayMetrics.DENSITY_XHIGH: 3541 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3542 case DisplayMetrics.DENSITY_XXHIGH: 3543 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3544 default: 3545 // The density is some abnormal value. Return some other 3546 // abnormal value that is a reasonable scaling of it. 3547 return (int)((size*1.5f) + .5f); 3548 } 3549 } 3550 3551 /** 3552 * Returns "true" if the user interface is currently being messed with 3553 * by a monkey. 3554 */ 3555 public static boolean isUserAMonkey() { 3556 try { 3557 return getService().isUserAMonkey(); 3558 } catch (RemoteException e) { 3559 throw e.rethrowFromSystemServer(); 3560 } 3561 } 3562 3563 /** 3564 * Returns "true" if device is running in a test harness. 3565 */ 3566 public static boolean isRunningInTestHarness() { 3567 return SystemProperties.getBoolean("ro.test_harness", false); 3568 } 3569 3570 /** 3571 * Returns the launch count of each installed package. 3572 * 3573 * @hide 3574 */ 3575 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3576 try { 3577 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3578 ServiceManager.getService("usagestats")); 3579 if (usageStatsService == null) { 3580 return new HashMap<String, Integer>(); 3581 } 3582 3583 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3584 ActivityThread.currentPackageName()); 3585 if (allPkgUsageStats == null) { 3586 return new HashMap<String, Integer>(); 3587 } 3588 3589 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3590 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3591 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3592 } 3593 3594 return launchCounts; 3595 } catch (RemoteException e) { 3596 Log.w(TAG, "Could not query launch counts", e); 3597 return new HashMap<String, Integer>(); 3598 } 3599 }*/ 3600 3601 /** @hide */ 3602 public static int checkComponentPermission(String permission, int uid, 3603 int owningUid, boolean exported) { 3604 // Root, system server get to do everything. 3605 final int appId = UserHandle.getAppId(uid); 3606 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3607 return PackageManager.PERMISSION_GRANTED; 3608 } 3609 // Isolated processes don't get any permissions. 3610 if (UserHandle.isIsolated(uid)) { 3611 return PackageManager.PERMISSION_DENIED; 3612 } 3613 // If there is a uid that owns whatever is being accessed, it has 3614 // blanket access to it regardless of the permissions it requires. 3615 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3616 return PackageManager.PERMISSION_GRANTED; 3617 } 3618 // If the target is not exported, then nobody else can get to it. 3619 if (!exported) { 3620 /* 3621 RuntimeException here = new RuntimeException("here"); 3622 here.fillInStackTrace(); 3623 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3624 here); 3625 */ 3626 return PackageManager.PERMISSION_DENIED; 3627 } 3628 if (permission == null) { 3629 return PackageManager.PERMISSION_GRANTED; 3630 } 3631 try { 3632 return AppGlobals.getPackageManager() 3633 .checkUidPermission(permission, uid); 3634 } catch (RemoteException e) { 3635 throw e.rethrowFromSystemServer(); 3636 } 3637 } 3638 3639 /** @hide */ 3640 public static int checkUidPermission(String permission, int uid) { 3641 try { 3642 return AppGlobals.getPackageManager() 3643 .checkUidPermission(permission, uid); 3644 } catch (RemoteException e) { 3645 throw e.rethrowFromSystemServer(); 3646 } 3647 } 3648 3649 /** 3650 * @hide 3651 * Helper for dealing with incoming user arguments to system service calls. 3652 * Takes care of checking permissions and converting USER_CURRENT to the 3653 * actual current user. 3654 * 3655 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3656 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3657 * @param userId The user id argument supplied by the caller -- this is the user 3658 * they want to run as. 3659 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3660 * to get a USER_ALL returned and deal with it correctly. If false, 3661 * an exception will be thrown if USER_ALL is supplied. 3662 * @param requireFull If true, the caller must hold 3663 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3664 * different user than their current process; otherwise they must hold 3665 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3666 * @param name Optional textual name of the incoming call; only for generating error messages. 3667 * @param callerPackage Optional package name of caller; only for error messages. 3668 * 3669 * @return Returns the user ID that the call should run as. Will always be a concrete 3670 * user number, unless <var>allowAll</var> is true in which case it could also be 3671 * USER_ALL. 3672 */ 3673 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3674 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3675 if (UserHandle.getUserId(callingUid) == userId) { 3676 return userId; 3677 } 3678 try { 3679 return getService().handleIncomingUser(callingPid, 3680 callingUid, userId, allowAll, requireFull, name, callerPackage); 3681 } catch (RemoteException e) { 3682 throw e.rethrowFromSystemServer(); 3683 } 3684 } 3685 3686 /** 3687 * Gets the userId of the current foreground user. Requires system permissions. 3688 * @hide 3689 */ 3690 @SystemApi 3691 public static int getCurrentUser() { 3692 UserInfo ui; 3693 try { 3694 ui = getService().getCurrentUser(); 3695 return ui != null ? ui.id : 0; 3696 } catch (RemoteException e) { 3697 throw e.rethrowFromSystemServer(); 3698 } 3699 } 3700 3701 /** 3702 * @param userid the user's id. Zero indicates the default user. 3703 * @hide 3704 */ 3705 public boolean switchUser(int userid) { 3706 try { 3707 return getService().switchUser(userid); 3708 } catch (RemoteException e) { 3709 throw e.rethrowFromSystemServer(); 3710 } 3711 } 3712 3713 /** 3714 * Logs out current current foreground user by switching to the system user and stopping the 3715 * user being switched from. 3716 * @hide 3717 */ 3718 public static void logoutCurrentUser() { 3719 int currentUser = ActivityManager.getCurrentUser(); 3720 if (currentUser != UserHandle.USER_SYSTEM) { 3721 try { 3722 getService().switchUser(UserHandle.USER_SYSTEM); 3723 getService().stopUser(currentUser, /* force= */ false, null); 3724 } catch (RemoteException e) { 3725 e.rethrowFromSystemServer(); 3726 } 3727 } 3728 } 3729 3730 /** {@hide} */ 3731 public static final int FLAG_OR_STOPPED = 1 << 0; 3732 /** {@hide} */ 3733 public static final int FLAG_AND_LOCKED = 1 << 1; 3734 /** {@hide} */ 3735 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3736 /** {@hide} */ 3737 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3738 3739 /** 3740 * Return whether the given user is actively running. This means that 3741 * the user is in the "started" state, not "stopped" -- it is currently 3742 * allowed to run code through scheduled alarms, receiving broadcasts, 3743 * etc. A started user may be either the current foreground user or a 3744 * background user; the result here does not distinguish between the two. 3745 * @param userId the user's id. Zero indicates the default user. 3746 * @hide 3747 */ 3748 public boolean isUserRunning(int userId) { 3749 try { 3750 return getService().isUserRunning(userId, 0); 3751 } catch (RemoteException e) { 3752 throw e.rethrowFromSystemServer(); 3753 } 3754 } 3755 3756 /** {@hide} */ 3757 public boolean isVrModePackageEnabled(ComponentName component) { 3758 try { 3759 return getService().isVrModePackageEnabled(component); 3760 } catch (RemoteException e) { 3761 throw e.rethrowFromSystemServer(); 3762 } 3763 } 3764 3765 /** 3766 * Perform a system dump of various state associated with the given application 3767 * package name. This call blocks while the dump is being performed, so should 3768 * not be done on a UI thread. The data will be written to the given file 3769 * descriptor as text. An application must hold the 3770 * {@link android.Manifest.permission#DUMP} permission to make this call. 3771 * @param fd The file descriptor that the dump should be written to. The file 3772 * descriptor is <em>not</em> closed by this function; the caller continues to 3773 * own it. 3774 * @param packageName The name of the package that is to be dumped. 3775 */ 3776 public void dumpPackageState(FileDescriptor fd, String packageName) { 3777 dumpPackageStateStatic(fd, packageName); 3778 } 3779 3780 /** 3781 * @hide 3782 */ 3783 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3784 FileOutputStream fout = new FileOutputStream(fd); 3785 PrintWriter pw = new FastPrintWriter(fout); 3786 dumpService(pw, fd, "package", new String[] { packageName }); 3787 pw.println(); 3788 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3789 "-a", "package", packageName }); 3790 pw.println(); 3791 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3792 pw.println(); 3793 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3794 pw.println(); 3795 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3796 pw.println(); 3797 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3798 pw.flush(); 3799 } 3800 3801 /** 3802 * @hide 3803 */ 3804 public static boolean isSystemReady() { 3805 if (!sSystemReady) { 3806 if (ActivityThread.isSystem()) { 3807 sSystemReady = 3808 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3809 } else { 3810 // Since this is being called from outside system server, system should be 3811 // ready by now. 3812 sSystemReady = true; 3813 } 3814 } 3815 return sSystemReady; 3816 } 3817 3818 /** 3819 * @hide 3820 */ 3821 public static void broadcastStickyIntent(Intent intent, int userId) { 3822 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3823 } 3824 3825 /** 3826 * Convenience for sending a sticky broadcast. For internal use only. 3827 * 3828 * @hide 3829 */ 3830 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3831 try { 3832 getService().broadcastIntent( 3833 null, intent, null, null, Activity.RESULT_OK, null, null, 3834 null /*permission*/, appOp, null, false, true, userId); 3835 } catch (RemoteException ex) { 3836 } 3837 } 3838 3839 /** 3840 * @hide 3841 */ 3842 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3843 String tag) { 3844 try { 3845 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3846 sourceUid, sourcePkg, tag); 3847 } catch (RemoteException ex) { 3848 } 3849 } 3850 3851 /** 3852 * @hide 3853 */ 3854 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3855 try { 3856 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3857 } catch (RemoteException ex) { 3858 } 3859 } 3860 3861 /** 3862 * @hide 3863 */ 3864 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3865 try { 3866 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3867 } catch (RemoteException ex) { 3868 } 3869 } 3870 3871 /** 3872 * @hide 3873 */ 3874 public static IActivityManager getService() { 3875 return IActivityManagerSingleton.get(); 3876 } 3877 3878 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3879 new Singleton<IActivityManager>() { 3880 @Override 3881 protected IActivityManager create() { 3882 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3883 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3884 return am; 3885 } 3886 }; 3887 3888 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3889 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3890 IBinder service = ServiceManager.checkService(name); 3891 if (service == null) { 3892 pw.println(" (Service not found)"); 3893 return; 3894 } 3895 TransferPipe tp = null; 3896 try { 3897 pw.flush(); 3898 tp = new TransferPipe(); 3899 tp.setBufferPrefix(" "); 3900 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3901 tp.go(fd, 10000); 3902 } catch (Throwable e) { 3903 if (tp != null) { 3904 tp.kill(); 3905 } 3906 pw.println("Failure dumping service:"); 3907 e.printStackTrace(pw); 3908 } 3909 } 3910 3911 /** 3912 * Request that the system start watching for the calling process to exceed a pss 3913 * size as given here. Once called, the system will look for any occasions where it 3914 * sees the associated process with a larger pss size and, when this happens, automatically 3915 * pull a heap dump from it and allow the user to share the data. Note that this request 3916 * continues running even if the process is killed and restarted. To remove the watch, 3917 * use {@link #clearWatchHeapLimit()}. 3918 * 3919 * <p>This API only work if the calling process has been marked as 3920 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3921 * (userdebug or eng) build.</p> 3922 * 3923 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3924 * handle heap limit reports themselves.</p> 3925 * 3926 * @param pssSize The size in bytes to set the limit at. 3927 */ 3928 public void setWatchHeapLimit(long pssSize) { 3929 try { 3930 getService().setDumpHeapDebugLimit(null, 0, pssSize, 3931 mContext.getPackageName()); 3932 } catch (RemoteException e) { 3933 throw e.rethrowFromSystemServer(); 3934 } 3935 } 3936 3937 /** 3938 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3939 * If your package has an activity handling this action, it will be launched with the 3940 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3941 * match the activty must support this action and a MIME type of "*/*". 3942 */ 3943 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3944 3945 /** 3946 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3947 */ 3948 public void clearWatchHeapLimit() { 3949 try { 3950 getService().setDumpHeapDebugLimit(null, 0, 0, null); 3951 } catch (RemoteException e) { 3952 throw e.rethrowFromSystemServer(); 3953 } 3954 } 3955 3956 /** 3957 * @hide 3958 */ 3959 public void startLockTaskMode(int taskId) { 3960 try { 3961 getService().startLockTaskModeById(taskId); 3962 } catch (RemoteException e) { 3963 throw e.rethrowFromSystemServer(); 3964 } 3965 } 3966 3967 /** 3968 * @hide 3969 */ 3970 public void stopLockTaskMode() { 3971 try { 3972 getService().stopLockTaskMode(); 3973 } catch (RemoteException e) { 3974 throw e.rethrowFromSystemServer(); 3975 } 3976 } 3977 3978 /** 3979 * Return whether currently in lock task mode. When in this mode 3980 * no new tasks can be created or switched to. 3981 * 3982 * @see Activity#startLockTask() 3983 * 3984 * @deprecated Use {@link #getLockTaskModeState} instead. 3985 */ 3986 @Deprecated 3987 public boolean isInLockTaskMode() { 3988 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3989 } 3990 3991 /** 3992 * Return the current state of task locking. The three possible outcomes 3993 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3994 * and {@link #LOCK_TASK_MODE_PINNED}. 3995 * 3996 * @see Activity#startLockTask() 3997 */ 3998 public int getLockTaskModeState() { 3999 try { 4000 return getService().getLockTaskModeState(); 4001 } catch (RemoteException e) { 4002 throw e.rethrowFromSystemServer(); 4003 } 4004 } 4005 4006 /** 4007 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4008 * thread can be a VR thread in a process at a time, and that thread may be subject to 4009 * restrictions on the amount of time it can run. 4010 * 4011 * To reset the VR thread for an application, a tid of 0 can be passed. 4012 * 4013 * @see android.os.Process#myTid() 4014 * @param tid tid of the VR thread 4015 */ 4016 public static void setVrThread(int tid) { 4017 try { 4018 getService().setVrThread(tid); 4019 } catch (RemoteException e) { 4020 // pass 4021 } 4022 } 4023 4024 /** 4025 * The AppTask allows you to manage your own application's tasks. 4026 * See {@link android.app.ActivityManager#getAppTasks()} 4027 */ 4028 public static class AppTask { 4029 private IAppTask mAppTaskImpl; 4030 4031 /** @hide */ 4032 public AppTask(IAppTask task) { 4033 mAppTaskImpl = task; 4034 } 4035 4036 /** 4037 * Finishes all activities in this task and removes it from the recent tasks list. 4038 */ 4039 public void finishAndRemoveTask() { 4040 try { 4041 mAppTaskImpl.finishAndRemoveTask(); 4042 } catch (RemoteException e) { 4043 throw e.rethrowFromSystemServer(); 4044 } 4045 } 4046 4047 /** 4048 * Get the RecentTaskInfo associated with this task. 4049 * 4050 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4051 */ 4052 public RecentTaskInfo getTaskInfo() { 4053 try { 4054 return mAppTaskImpl.getTaskInfo(); 4055 } catch (RemoteException e) { 4056 throw e.rethrowFromSystemServer(); 4057 } 4058 } 4059 4060 /** 4061 * Bring this task to the foreground. If it contains activities, they will be 4062 * brought to the foreground with it and their instances re-created if needed. 4063 * If it doesn't contain activities, the root activity of the task will be 4064 * re-launched. 4065 */ 4066 public void moveToFront() { 4067 try { 4068 mAppTaskImpl.moveToFront(); 4069 } catch (RemoteException e) { 4070 throw e.rethrowFromSystemServer(); 4071 } 4072 } 4073 4074 /** 4075 * Start an activity in this task. Brings the task to the foreground. If this task 4076 * is not currently active (that is, its id < 0), then a new activity for the given 4077 * Intent will be launched as the root of the task and the task brought to the 4078 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4079 * an activity to launch in a new task, then a new activity for the given Intent will 4080 * be launched on top of the task and the task brought to the foreground. If this 4081 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4082 * or would otherwise be launched in to a new task, then the activity not launched but 4083 * this task be brought to the foreground and a new intent delivered to the top 4084 * activity if appropriate. 4085 * 4086 * <p>In other words, you generally want to use an Intent here that does not specify 4087 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4088 * and let the system do the right thing.</p> 4089 * 4090 * @param intent The Intent describing the new activity to be launched on the task. 4091 * @param options Optional launch options. 4092 * 4093 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4094 */ 4095 public void startActivity(Context context, Intent intent, Bundle options) { 4096 ActivityThread thread = ActivityThread.currentActivityThread(); 4097 thread.getInstrumentation().execStartActivityFromAppTask(context, 4098 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4099 } 4100 4101 /** 4102 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4103 * Intent of this AppTask. 4104 * 4105 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4106 * be set; otherwise, it will be cleared. 4107 */ 4108 public void setExcludeFromRecents(boolean exclude) { 4109 try { 4110 mAppTaskImpl.setExcludeFromRecents(exclude); 4111 } catch (RemoteException e) { 4112 throw e.rethrowFromSystemServer(); 4113 } 4114 } 4115 } 4116} 4117