ActivityManager.java revision 85e35643ba245c2d2b96662989aa505f04204cd7
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}: delay running until later, with 530 * rigid errors (throwing exception). */ 531 public static final int APP_START_MODE_DELAYED_RIGID = 2; 532 533 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 534 * launches; this is the mode for ephemeral apps. */ 535 public static final int APP_START_MODE_DISABLED = 3; 536 537 /** 538 * Lock task mode is not active. 539 */ 540 public static final int LOCK_TASK_MODE_NONE = 0; 541 542 /** 543 * Full lock task mode is active. 544 */ 545 public static final int LOCK_TASK_MODE_LOCKED = 1; 546 547 /** 548 * App pinning mode is active. 549 */ 550 public static final int LOCK_TASK_MODE_PINNED = 2; 551 552 Point mAppTaskThumbnailSize; 553 554 /*package*/ ActivityManager(Context context, Handler handler) { 555 mContext = context; 556 } 557 558 /** 559 * Screen compatibility mode: the application most always run in 560 * compatibility mode. 561 * @hide 562 */ 563 public static final int COMPAT_MODE_ALWAYS = -1; 564 565 /** 566 * Screen compatibility mode: the application can never run in 567 * compatibility mode. 568 * @hide 569 */ 570 public static final int COMPAT_MODE_NEVER = -2; 571 572 /** 573 * Screen compatibility mode: unknown. 574 * @hide 575 */ 576 public static final int COMPAT_MODE_UNKNOWN = -3; 577 578 /** 579 * Screen compatibility mode: the application currently has compatibility 580 * mode disabled. 581 * @hide 582 */ 583 public static final int COMPAT_MODE_DISABLED = 0; 584 585 /** 586 * Screen compatibility mode: the application currently has compatibility 587 * mode enabled. 588 * @hide 589 */ 590 public static final int COMPAT_MODE_ENABLED = 1; 591 592 /** 593 * Screen compatibility mode: request to toggle the application's 594 * compatibility mode. 595 * @hide 596 */ 597 public static final int COMPAT_MODE_TOGGLE = 2; 598 599 /** @hide */ 600 public static class StackId { 601 /** Invalid stack ID. */ 602 public static final int INVALID_STACK_ID = -1; 603 604 /** First static stack ID. */ 605 public static final int FIRST_STATIC_STACK_ID = 0; 606 607 /** Home activity stack ID. */ 608 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 609 610 /** ID of stack where fullscreen activities are normally launched into. */ 611 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 612 613 /** ID of stack where freeform/resized activities are normally launched into. */ 614 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 615 616 /** ID of stack that occupies a dedicated region of the screen. */ 617 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 618 619 /** ID of stack that always on top (always visible) when it exist. */ 620 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 621 622 /** Recents activity stack ID. */ 623 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 624 625 /** Last static stack stack ID. */ 626 public static final int LAST_STATIC_STACK_ID = RECENTS_STACK_ID; 627 628 /** Start of ID range used by stacks that are created dynamically. */ 629 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 630 631 public static boolean isStaticStack(int stackId) { 632 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 633 } 634 635 public static boolean isDynamicStack(int stackId) { 636 return stackId >= FIRST_DYNAMIC_STACK_ID; 637 } 638 639 /** 640 * Returns true if the activities contained in the input stack display a shadow around 641 * their border. 642 */ 643 public static boolean hasWindowShadow(int stackId) { 644 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 645 } 646 647 /** 648 * Returns true if the activities contained in the input stack display a decor view. 649 */ 650 public static boolean hasWindowDecor(int stackId) { 651 return stackId == FREEFORM_WORKSPACE_STACK_ID; 652 } 653 654 /** 655 * Returns true if the tasks contained in the stack can be resized independently of the 656 * stack. 657 */ 658 public static boolean isTaskResizeAllowed(int stackId) { 659 return stackId == FREEFORM_WORKSPACE_STACK_ID; 660 } 661 662 /** Returns true if the task bounds should persist across power cycles. */ 663 public static boolean persistTaskBounds(int stackId) { 664 return stackId == FREEFORM_WORKSPACE_STACK_ID; 665 } 666 667 /** 668 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 669 */ 670 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 671 return stackId == PINNED_STACK_ID; 672 } 673 674 /** 675 * Returns true if we try to maintain focus in the current stack when the top activity 676 * finishes. 677 */ 678 public static boolean keepFocusInStackIfPossible(int stackId) { 679 return stackId == FREEFORM_WORKSPACE_STACK_ID 680 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 681 } 682 683 /** 684 * Returns true if Stack size is affected by the docked stack changing size. 685 */ 686 public static boolean isResizeableByDockedStack(int stackId) { 687 return isStaticStack(stackId) && 688 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 689 } 690 691 /** 692 * Returns true if the size of tasks in the input stack are affected by the docked stack 693 * changing size. 694 */ 695 public static boolean isTaskResizeableByDockedStack(int stackId) { 696 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 697 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 698 } 699 700 /** 701 * Returns true if the windows of tasks being moved to the target stack from the source 702 * stack should be replaced, meaning that window manager will keep the old window around 703 * until the new is ready. 704 */ 705 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 706 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 707 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 708 } 709 710 /** 711 * Return whether a stackId is a stack containing floating windows. Floating windows 712 * are laid out differently as they are allowed to extend past the display bounds 713 * without overscan insets. 714 */ 715 public static boolean tasksAreFloating(int stackId) { 716 return stackId == FREEFORM_WORKSPACE_STACK_ID 717 || stackId == PINNED_STACK_ID; 718 } 719 720 /** 721 * Returns true if animation specs should be constructed for app transition that moves 722 * the task to the specified stack. 723 */ 724 public static boolean useAnimationSpecForAppTransition(int stackId) { 725 726 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 727 // reboots. 728 return stackId == FREEFORM_WORKSPACE_STACK_ID 729 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 730 || stackId == INVALID_STACK_ID; 731 } 732 733 /** Returns true if the windows in the stack can receive input keys. */ 734 public static boolean canReceiveKeys(int stackId) { 735 return stackId != PINNED_STACK_ID; 736 } 737 738 /** 739 * Returns true if the stack can be visible above lockscreen. 740 */ 741 public static boolean isAllowedOverLockscreen(int stackId) { 742 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 743 } 744 745 public static boolean isAlwaysOnTop(int stackId) { 746 return stackId == PINNED_STACK_ID; 747 } 748 749 /** 750 * Returns true if the top task in the task is allowed to return home when finished and 751 * there are other tasks in the stack. 752 */ 753 public static boolean allowTopTaskToReturnHome(int stackId) { 754 return stackId != PINNED_STACK_ID; 755 } 756 757 /** 758 * Returns true if the stack should be resized to match the bounds specified by 759 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 760 */ 761 public static boolean resizeStackWithLaunchBounds(int stackId) { 762 return stackId == PINNED_STACK_ID; 763 } 764 765 /** 766 * Returns true if any visible windows belonging to apps in this stack should be kept on 767 * screen when the app is killed due to something like the low memory killer. 768 */ 769 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 770 return stackId != PINNED_STACK_ID; 771 } 772 773 /** 774 * Returns true if the backdrop on the client side should match the frame of the window. 775 * Returns false, if the backdrop should be fullscreen. 776 */ 777 public static boolean useWindowFrameForBackdrop(int stackId) { 778 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 779 } 780 781 /** 782 * Returns true if a window from the specified stack with {@param stackId} are normally 783 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 784 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 785 * etc. 786 */ 787 public static boolean normallyFullscreenWindows(int stackId) { 788 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 789 && stackId != DOCKED_STACK_ID; 790 } 791 792 /** 793 * Returns true if the input stack id should only be present on a device that supports 794 * multi-window mode. 795 * @see android.app.ActivityManager#supportsMultiWindow 796 */ 797 public static boolean isMultiWindowStack(int stackId) { 798 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 799 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 800 } 801 802 /** 803 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 804 */ 805 public static boolean isHomeOrRecentsStack(int stackId) { 806 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 807 } 808 809 /** 810 * Returns true if activities contained in this stack can request visible behind by 811 * calling {@link Activity#requestVisibleBehind}. 812 */ 813 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 814 return stackId == FULLSCREEN_WORKSPACE_STACK_ID; 815 } 816 817 /** 818 * Returns true if this stack may be scaled without resizing, 819 * and windows within may need to be configured as such. 820 */ 821 public static boolean windowsAreScaleable(int stackId) { 822 return stackId == PINNED_STACK_ID; 823 } 824 825 /** 826 * Returns true if windows in this stack should be given move animations 827 * by default. 828 */ 829 public static boolean hasMovementAnimations(int stackId) { 830 return stackId != PINNED_STACK_ID; 831 } 832 833 /** Returns true if the input stack and its content can affect the device orientation. */ 834 public static boolean canSpecifyOrientation(int stackId) { 835 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID 836 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || isDynamicStack(stackId); 837 } 838 } 839 840 /** 841 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 842 * specifies the position of the created docked stack at the top half of the screen if 843 * in portrait mode or at the left half of the screen if in landscape mode. 844 * @hide 845 */ 846 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 847 848 /** 849 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 850 * specifies the position of the created docked stack at the bottom half of the screen if 851 * in portrait mode or at the right half of the screen if in landscape mode. 852 * @hide 853 */ 854 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 855 856 /** 857 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 858 * that the resize doesn't need to preserve the window, and can be skipped if bounds 859 * is unchanged. This mode is used by window manager in most cases. 860 * @hide 861 */ 862 public static final int RESIZE_MODE_SYSTEM = 0; 863 864 /** 865 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 866 * that the resize should preserve the window if possible. 867 * @hide 868 */ 869 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 870 871 /** 872 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 873 * that the resize should be performed even if the bounds appears unchanged. 874 * @hide 875 */ 876 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 877 878 /** 879 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 880 * manager during a screen rotation. 881 * @hide 882 */ 883 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 884 885 /** 886 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 887 * resize is due to a drag action. 888 * @hide 889 */ 890 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 891 892 /** 893 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 894 * that the resize should preserve the window if possible, and should not be skipped 895 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 896 * is ending. 897 * @hide 898 */ 899 public static final int RESIZE_MODE_USER_FORCED = 900 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 901 902 /** @hide */ 903 public int getFrontActivityScreenCompatMode() { 904 try { 905 return getService().getFrontActivityScreenCompatMode(); 906 } catch (RemoteException e) { 907 throw e.rethrowFromSystemServer(); 908 } 909 } 910 911 /** @hide */ 912 public void setFrontActivityScreenCompatMode(int mode) { 913 try { 914 getService().setFrontActivityScreenCompatMode(mode); 915 } catch (RemoteException e) { 916 throw e.rethrowFromSystemServer(); 917 } 918 } 919 920 /** @hide */ 921 public int getPackageScreenCompatMode(String packageName) { 922 try { 923 return getService().getPackageScreenCompatMode(packageName); 924 } catch (RemoteException e) { 925 throw e.rethrowFromSystemServer(); 926 } 927 } 928 929 /** @hide */ 930 public void setPackageScreenCompatMode(String packageName, int mode) { 931 try { 932 getService().setPackageScreenCompatMode(packageName, mode); 933 } catch (RemoteException e) { 934 throw e.rethrowFromSystemServer(); 935 } 936 } 937 938 /** @hide */ 939 public boolean getPackageAskScreenCompat(String packageName) { 940 try { 941 return getService().getPackageAskScreenCompat(packageName); 942 } catch (RemoteException e) { 943 throw e.rethrowFromSystemServer(); 944 } 945 } 946 947 /** @hide */ 948 public void setPackageAskScreenCompat(String packageName, boolean ask) { 949 try { 950 getService().setPackageAskScreenCompat(packageName, ask); 951 } catch (RemoteException e) { 952 throw e.rethrowFromSystemServer(); 953 } 954 } 955 956 /** 957 * Return the approximate per-application memory class of the current 958 * device. This gives you an idea of how hard a memory limit you should 959 * impose on your application to let the overall system work best. The 960 * returned value is in megabytes; the baseline Android memory class is 961 * 16 (which happens to be the Java heap limit of those devices); some 962 * device with more memory may return 24 or even higher numbers. 963 */ 964 public int getMemoryClass() { 965 return staticGetMemoryClass(); 966 } 967 968 /** @hide */ 969 static public int staticGetMemoryClass() { 970 // Really brain dead right now -- just take this from the configured 971 // vm heap size, and assume it is in megabytes and thus ends with "m". 972 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 973 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 974 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 975 } 976 return staticGetLargeMemoryClass(); 977 } 978 979 /** 980 * Return the approximate per-application memory class of the current 981 * device when an application is running with a large heap. This is the 982 * space available for memory-intensive applications; most applications 983 * should not need this amount of memory, and should instead stay with the 984 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 985 * This may be the same size as {@link #getMemoryClass()} on memory 986 * constrained devices, or it may be significantly larger on devices with 987 * a large amount of available RAM. 988 * 989 * <p>The is the size of the application's Dalvik heap if it has 990 * specified <code>android:largeHeap="true"</code> in its manifest. 991 */ 992 public int getLargeMemoryClass() { 993 return staticGetLargeMemoryClass(); 994 } 995 996 /** @hide */ 997 static public int staticGetLargeMemoryClass() { 998 // Really brain dead right now -- just take this from the configured 999 // vm heap size, and assume it is in megabytes and thus ends with "m". 1000 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1001 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1002 } 1003 1004 /** 1005 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1006 * is ultimately up to the device configuration, but currently it generally means 1007 * something in the class of a 512MB device with about a 800x480 or less screen. 1008 * This is mostly intended to be used by apps to determine whether they should turn 1009 * off certain features that require more RAM. 1010 */ 1011 public boolean isLowRamDevice() { 1012 return isLowRamDeviceStatic(); 1013 } 1014 1015 /** @hide */ 1016 public static boolean isLowRamDeviceStatic() { 1017 return RoSystemProperties.CONFIG_LOW_RAM; 1018 } 1019 1020 /** 1021 * Used by persistent processes to determine if they are running on a 1022 * higher-end device so should be okay using hardware drawing acceleration 1023 * (which tends to consume a lot more RAM). 1024 * @hide 1025 */ 1026 static public boolean isHighEndGfx() { 1027 return !isLowRamDeviceStatic() && 1028 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1029 } 1030 1031 /** 1032 * Return the maximum number of recents entries that we will maintain and show. 1033 * @hide 1034 */ 1035 static public int getMaxRecentTasksStatic() { 1036 if (gMaxRecentTasks < 0) { 1037 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1038 } 1039 return gMaxRecentTasks; 1040 } 1041 1042 /** 1043 * Return the default limit on the number of recents that an app can make. 1044 * @hide 1045 */ 1046 static public int getDefaultAppRecentsLimitStatic() { 1047 return getMaxRecentTasksStatic() / 6; 1048 } 1049 1050 /** 1051 * Return the maximum limit on the number of recents that an app can make. 1052 * @hide 1053 */ 1054 static public int getMaxAppRecentsLimitStatic() { 1055 return getMaxRecentTasksStatic() / 2; 1056 } 1057 1058 /** 1059 * Returns true if the system supports at least one form of multi-window. 1060 * E.g. freeform, split-screen, picture-in-picture. 1061 * @hide 1062 */ 1063 static public boolean supportsMultiWindow() { 1064 return !isLowRamDeviceStatic() 1065 && Resources.getSystem().getBoolean( 1066 com.android.internal.R.bool.config_supportsMultiWindow); 1067 } 1068 1069 /** 1070 * Returns true if the system supports split screen multi-window. 1071 * @hide 1072 */ 1073 static public boolean supportsSplitScreenMultiWindow() { 1074 return supportsMultiWindow() 1075 && Resources.getSystem().getBoolean( 1076 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1077 } 1078 1079 /** 1080 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1081 * the user interacts with the activity currently in picture-in-picture mode. 1082 */ 1083 public static int getMaxNumPictureInPictureActions() { 1084 return NUM_ALLOWED_PIP_ACTIONS; 1085 } 1086 1087 /** 1088 * Information you can set and retrieve about the current activity within the recent task list. 1089 */ 1090 public static class TaskDescription implements Parcelable { 1091 /** @hide */ 1092 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1093 private static final String ATTR_TASKDESCRIPTIONLABEL = 1094 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1095 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1096 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1097 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1098 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1099 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1100 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1101 1102 private String mLabel; 1103 private Bitmap mIcon; 1104 private String mIconFilename; 1105 private int mColorPrimary; 1106 private int mColorBackground; 1107 1108 /** 1109 * Creates the TaskDescription to the specified values. 1110 * 1111 * @param label A label and description of the current state of this task. 1112 * @param icon An icon that represents the current state of this task. 1113 * @param colorPrimary A color to override the theme's primary color. This color must be 1114 * opaque. 1115 */ 1116 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1117 this(label, icon, null, colorPrimary, 0); 1118 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1119 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1120 } 1121 } 1122 1123 /** 1124 * Creates the TaskDescription to the specified values. 1125 * 1126 * @param label A label and description of the current state of this activity. 1127 * @param icon An icon that represents the current state of this activity. 1128 */ 1129 public TaskDescription(String label, Bitmap icon) { 1130 this(label, icon, null, 0, 0); 1131 } 1132 1133 /** 1134 * Creates the TaskDescription to the specified values. 1135 * 1136 * @param label A label and description of the current state of this activity. 1137 */ 1138 public TaskDescription(String label) { 1139 this(label, null, null, 0, 0); 1140 } 1141 1142 /** 1143 * Creates an empty TaskDescription. 1144 */ 1145 public TaskDescription() { 1146 this(null, null, null, 0, 0); 1147 } 1148 1149 /** @hide */ 1150 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1151 int colorBackground) { 1152 mLabel = label; 1153 mIcon = icon; 1154 mIconFilename = iconFilename; 1155 mColorPrimary = colorPrimary; 1156 mColorBackground = colorBackground; 1157 } 1158 1159 /** 1160 * Creates a copy of another TaskDescription. 1161 */ 1162 public TaskDescription(TaskDescription td) { 1163 copyFrom(td); 1164 } 1165 1166 /** 1167 * Copies this the values from another TaskDescription. 1168 * @hide 1169 */ 1170 public void copyFrom(TaskDescription other) { 1171 mLabel = other.mLabel; 1172 mIcon = other.mIcon; 1173 mIconFilename = other.mIconFilename; 1174 mColorPrimary = other.mColorPrimary; 1175 mColorBackground = other.mColorBackground; 1176 } 1177 1178 private TaskDescription(Parcel source) { 1179 readFromParcel(source); 1180 } 1181 1182 /** 1183 * Sets the label for this task description. 1184 * @hide 1185 */ 1186 public void setLabel(String label) { 1187 mLabel = label; 1188 } 1189 1190 /** 1191 * Sets the primary color for this task description. 1192 * @hide 1193 */ 1194 public void setPrimaryColor(int primaryColor) { 1195 // Ensure that the given color is valid 1196 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1197 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1198 } 1199 mColorPrimary = primaryColor; 1200 } 1201 1202 /** 1203 * Sets the background color for this task description. 1204 * @hide 1205 */ 1206 public void setBackgroundColor(int backgroundColor) { 1207 // Ensure that the given color is valid 1208 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1209 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1210 } 1211 mColorBackground = backgroundColor; 1212 } 1213 1214 /** 1215 * Sets the icon for this task description. 1216 * @hide 1217 */ 1218 public void setIcon(Bitmap icon) { 1219 mIcon = icon; 1220 } 1221 1222 /** 1223 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1224 * bitmap. 1225 * @hide 1226 */ 1227 public void setIconFilename(String iconFilename) { 1228 mIconFilename = iconFilename; 1229 mIcon = null; 1230 } 1231 1232 /** 1233 * @return The label and description of the current state of this task. 1234 */ 1235 public String getLabel() { 1236 return mLabel; 1237 } 1238 1239 /** 1240 * @return The icon that represents the current state of this task. 1241 */ 1242 public Bitmap getIcon() { 1243 if (mIcon != null) { 1244 return mIcon; 1245 } 1246 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1247 } 1248 1249 /** @hide */ 1250 public String getIconFilename() { 1251 return mIconFilename; 1252 } 1253 1254 /** @hide */ 1255 public Bitmap getInMemoryIcon() { 1256 return mIcon; 1257 } 1258 1259 /** @hide */ 1260 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1261 if (iconFilename != null) { 1262 try { 1263 return getService().getTaskDescriptionIcon(iconFilename, 1264 userId); 1265 } catch (RemoteException e) { 1266 throw e.rethrowFromSystemServer(); 1267 } 1268 } 1269 return null; 1270 } 1271 1272 /** 1273 * @return The color override on the theme's primary color. 1274 */ 1275 public int getPrimaryColor() { 1276 return mColorPrimary; 1277 } 1278 1279 /** 1280 * @return The background color. 1281 * @hide 1282 */ 1283 public int getBackgroundColor() { 1284 return mColorBackground; 1285 } 1286 1287 /** @hide */ 1288 public void saveToXml(XmlSerializer out) throws IOException { 1289 if (mLabel != null) { 1290 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1291 } 1292 if (mColorPrimary != 0) { 1293 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1294 Integer.toHexString(mColorPrimary)); 1295 } 1296 if (mColorBackground != 0) { 1297 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1298 Integer.toHexString(mColorBackground)); 1299 } 1300 if (mIconFilename != null) { 1301 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1302 } 1303 } 1304 1305 /** @hide */ 1306 public void restoreFromXml(String attrName, String attrValue) { 1307 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1308 setLabel(attrValue); 1309 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1310 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1311 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1312 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1313 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1314 setIconFilename(attrValue); 1315 } 1316 } 1317 1318 @Override 1319 public int describeContents() { 1320 return 0; 1321 } 1322 1323 @Override 1324 public void writeToParcel(Parcel dest, int flags) { 1325 if (mLabel == null) { 1326 dest.writeInt(0); 1327 } else { 1328 dest.writeInt(1); 1329 dest.writeString(mLabel); 1330 } 1331 if (mIcon == null) { 1332 dest.writeInt(0); 1333 } else { 1334 dest.writeInt(1); 1335 mIcon.writeToParcel(dest, 0); 1336 } 1337 dest.writeInt(mColorPrimary); 1338 dest.writeInt(mColorBackground); 1339 if (mIconFilename == null) { 1340 dest.writeInt(0); 1341 } else { 1342 dest.writeInt(1); 1343 dest.writeString(mIconFilename); 1344 } 1345 } 1346 1347 public void readFromParcel(Parcel source) { 1348 mLabel = source.readInt() > 0 ? source.readString() : null; 1349 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1350 mColorPrimary = source.readInt(); 1351 mColorBackground = source.readInt(); 1352 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1353 } 1354 1355 public static final Creator<TaskDescription> CREATOR 1356 = new Creator<TaskDescription>() { 1357 public TaskDescription createFromParcel(Parcel source) { 1358 return new TaskDescription(source); 1359 } 1360 public TaskDescription[] newArray(int size) { 1361 return new TaskDescription[size]; 1362 } 1363 }; 1364 1365 @Override 1366 public String toString() { 1367 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1368 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1369 " colorBackground: " + mColorBackground; 1370 } 1371 } 1372 1373 /** 1374 * Information you can retrieve about tasks that the user has most recently 1375 * started or visited. 1376 */ 1377 public static class RecentTaskInfo implements Parcelable { 1378 /** 1379 * If this task is currently running, this is the identifier for it. 1380 * If it is not running, this will be -1. 1381 */ 1382 public int id; 1383 1384 /** 1385 * The true identifier of this task, valid even if it is not running. 1386 */ 1387 public int persistentId; 1388 1389 /** 1390 * The original Intent used to launch the task. You can use this 1391 * Intent to re-launch the task (if it is no longer running) or bring 1392 * the current task to the front. 1393 */ 1394 public Intent baseIntent; 1395 1396 /** 1397 * If this task was started from an alias, this is the actual 1398 * activity component that was initially started; the component of 1399 * the baseIntent in this case is the name of the actual activity 1400 * implementation that the alias referred to. Otherwise, this is null. 1401 */ 1402 public ComponentName origActivity; 1403 1404 /** 1405 * The actual activity component that started the task. 1406 * @hide 1407 */ 1408 @Nullable 1409 public ComponentName realActivity; 1410 1411 /** 1412 * Description of the task's last state. 1413 */ 1414 public CharSequence description; 1415 1416 /** 1417 * The id of the ActivityStack this Task was on most recently. 1418 * @hide 1419 */ 1420 public int stackId; 1421 1422 /** 1423 * The id of the user the task was running as. 1424 * @hide 1425 */ 1426 public int userId; 1427 1428 /** 1429 * The first time this task was active. 1430 * @hide 1431 */ 1432 public long firstActiveTime; 1433 1434 /** 1435 * The last time this task was active. 1436 * @hide 1437 */ 1438 public long lastActiveTime; 1439 1440 /** 1441 * The recent activity values for the highest activity in the stack to have set the values. 1442 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1443 */ 1444 public TaskDescription taskDescription; 1445 1446 /** 1447 * Task affiliation for grouping with other tasks. 1448 */ 1449 public int affiliatedTaskId; 1450 1451 /** 1452 * Task affiliation color of the source task with the affiliated task id. 1453 * 1454 * @hide 1455 */ 1456 public int affiliatedTaskColor; 1457 1458 /** 1459 * The component launched as the first activity in the task. 1460 * This can be considered the "application" of this task. 1461 */ 1462 public ComponentName baseActivity; 1463 1464 /** 1465 * The activity component at the top of the history stack of the task. 1466 * This is what the user is currently doing. 1467 */ 1468 public ComponentName topActivity; 1469 1470 /** 1471 * Number of activities in this task. 1472 */ 1473 public int numActivities; 1474 1475 /** 1476 * The bounds of the task. 1477 * @hide 1478 */ 1479 public Rect bounds; 1480 1481 /** 1482 * True if the task can go in the docked stack. 1483 * @hide 1484 */ 1485 public boolean isDockable; 1486 1487 /** 1488 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1489 * @hide 1490 */ 1491 public int resizeMode; 1492 1493 public RecentTaskInfo() { 1494 } 1495 1496 @Override 1497 public int describeContents() { 1498 return 0; 1499 } 1500 1501 @Override 1502 public void writeToParcel(Parcel dest, int flags) { 1503 dest.writeInt(id); 1504 dest.writeInt(persistentId); 1505 if (baseIntent != null) { 1506 dest.writeInt(1); 1507 baseIntent.writeToParcel(dest, 0); 1508 } else { 1509 dest.writeInt(0); 1510 } 1511 ComponentName.writeToParcel(origActivity, dest); 1512 ComponentName.writeToParcel(realActivity, dest); 1513 TextUtils.writeToParcel(description, dest, 1514 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1515 if (taskDescription != null) { 1516 dest.writeInt(1); 1517 taskDescription.writeToParcel(dest, 0); 1518 } else { 1519 dest.writeInt(0); 1520 } 1521 dest.writeInt(stackId); 1522 dest.writeInt(userId); 1523 dest.writeLong(firstActiveTime); 1524 dest.writeLong(lastActiveTime); 1525 dest.writeInt(affiliatedTaskId); 1526 dest.writeInt(affiliatedTaskColor); 1527 ComponentName.writeToParcel(baseActivity, dest); 1528 ComponentName.writeToParcel(topActivity, dest); 1529 dest.writeInt(numActivities); 1530 if (bounds != null) { 1531 dest.writeInt(1); 1532 bounds.writeToParcel(dest, 0); 1533 } else { 1534 dest.writeInt(0); 1535 } 1536 dest.writeInt(isDockable ? 1 : 0); 1537 dest.writeInt(resizeMode); 1538 } 1539 1540 public void readFromParcel(Parcel source) { 1541 id = source.readInt(); 1542 persistentId = source.readInt(); 1543 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1544 origActivity = ComponentName.readFromParcel(source); 1545 realActivity = ComponentName.readFromParcel(source); 1546 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1547 taskDescription = source.readInt() > 0 ? 1548 TaskDescription.CREATOR.createFromParcel(source) : null; 1549 stackId = source.readInt(); 1550 userId = source.readInt(); 1551 firstActiveTime = source.readLong(); 1552 lastActiveTime = source.readLong(); 1553 affiliatedTaskId = source.readInt(); 1554 affiliatedTaskColor = source.readInt(); 1555 baseActivity = ComponentName.readFromParcel(source); 1556 topActivity = ComponentName.readFromParcel(source); 1557 numActivities = source.readInt(); 1558 bounds = source.readInt() > 0 ? 1559 Rect.CREATOR.createFromParcel(source) : null; 1560 isDockable = source.readInt() == 1; 1561 resizeMode = source.readInt(); 1562 } 1563 1564 public static final Creator<RecentTaskInfo> CREATOR 1565 = new Creator<RecentTaskInfo>() { 1566 public RecentTaskInfo createFromParcel(Parcel source) { 1567 return new RecentTaskInfo(source); 1568 } 1569 public RecentTaskInfo[] newArray(int size) { 1570 return new RecentTaskInfo[size]; 1571 } 1572 }; 1573 1574 private RecentTaskInfo(Parcel source) { 1575 readFromParcel(source); 1576 } 1577 } 1578 1579 /** 1580 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1581 * that have set their 1582 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1583 */ 1584 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1585 1586 /** 1587 * Provides a list that does not contain any 1588 * recent tasks that currently are not available to the user. 1589 */ 1590 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1591 1592 /** 1593 * Provides a list that contains recent tasks for all 1594 * profiles of a user. 1595 * @hide 1596 */ 1597 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1598 1599 /** 1600 * Ignores all tasks that are on the home stack. 1601 * @hide 1602 */ 1603 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1604 1605 /** 1606 * Ignores the top task in the docked stack. 1607 * @hide 1608 */ 1609 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1610 1611 /** 1612 * Ignores all tasks that are on the pinned stack. 1613 * @hide 1614 */ 1615 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1616 1617 /** 1618 * <p></p>Return a list of the tasks that the user has recently launched, with 1619 * the most recent being first and older ones after in order. 1620 * 1621 * <p><b>Note: this method is only intended for debugging and presenting 1622 * task management user interfaces</b>. This should never be used for 1623 * core logic in an application, such as deciding between different 1624 * behaviors based on the information found here. Such uses are 1625 * <em>not</em> supported, and will likely break in the future. For 1626 * example, if multiple applications can be actively running at the 1627 * same time, assumptions made about the meaning of the data here for 1628 * purposes of control flow will be incorrect.</p> 1629 * 1630 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1631 * no longer available to third party applications: the introduction of 1632 * document-centric recents means 1633 * it can leak personal information to the caller. For backwards compatibility, 1634 * it will still return a small subset of its data: at least the caller's 1635 * own tasks (though see {@link #getAppTasks()} for the correct supported 1636 * way to retrieve that information), and possibly some other tasks 1637 * such as home that are known to not be sensitive. 1638 * 1639 * @param maxNum The maximum number of entries to return in the list. The 1640 * actual number returned may be smaller, depending on how many tasks the 1641 * user has started and the maximum number the system can remember. 1642 * @param flags Information about what to return. May be any combination 1643 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1644 * 1645 * @return Returns a list of RecentTaskInfo records describing each of 1646 * the recent tasks. 1647 */ 1648 @Deprecated 1649 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1650 throws SecurityException { 1651 try { 1652 return getService().getRecentTasks(maxNum, 1653 flags, UserHandle.myUserId()).getList(); 1654 } catch (RemoteException e) { 1655 throw e.rethrowFromSystemServer(); 1656 } 1657 } 1658 1659 /** 1660 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1661 * specific user. It requires holding 1662 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1663 * @param maxNum The maximum number of entries to return in the list. The 1664 * actual number returned may be smaller, depending on how many tasks the 1665 * user has started and the maximum number the system can remember. 1666 * @param flags Information about what to return. May be any combination 1667 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1668 * 1669 * @return Returns a list of RecentTaskInfo records describing each of 1670 * the recent tasks. Most recently activated tasks go first. 1671 * 1672 * @hide 1673 */ 1674 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1675 throws SecurityException { 1676 try { 1677 return getService().getRecentTasks(maxNum, 1678 flags, userId).getList(); 1679 } catch (RemoteException e) { 1680 throw e.rethrowFromSystemServer(); 1681 } 1682 } 1683 1684 /** 1685 * Information you can retrieve about a particular task that is currently 1686 * "running" in the system. Note that a running task does not mean the 1687 * given task actually has a process it is actively running in; it simply 1688 * means that the user has gone to it and never closed it, but currently 1689 * the system may have killed its process and is only holding on to its 1690 * last state in order to restart it when the user returns. 1691 */ 1692 public static class RunningTaskInfo implements Parcelable { 1693 /** 1694 * A unique identifier for this task. 1695 */ 1696 public int id; 1697 1698 /** 1699 * The stack that currently contains this task. 1700 * @hide 1701 */ 1702 public int stackId; 1703 1704 /** 1705 * The component launched as the first activity in the task. This can 1706 * be considered the "application" of this task. 1707 */ 1708 public ComponentName baseActivity; 1709 1710 /** 1711 * The activity component at the top of the history stack of the task. 1712 * This is what the user is currently doing. 1713 */ 1714 public ComponentName topActivity; 1715 1716 /** 1717 * Thumbnail representation of the task's current state. Currently 1718 * always null. 1719 */ 1720 public Bitmap thumbnail; 1721 1722 /** 1723 * Description of the task's current state. 1724 */ 1725 public CharSequence description; 1726 1727 /** 1728 * Number of activities in this task. 1729 */ 1730 public int numActivities; 1731 1732 /** 1733 * Number of activities that are currently running (not stopped 1734 * and persisted) in this task. 1735 */ 1736 public int numRunning; 1737 1738 /** 1739 * Last time task was run. For sorting. 1740 * @hide 1741 */ 1742 public long lastActiveTime; 1743 1744 /** 1745 * True if the task can go in the docked stack. 1746 * @hide 1747 */ 1748 public boolean isDockable; 1749 1750 /** 1751 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1752 * @hide 1753 */ 1754 public int resizeMode; 1755 1756 public RunningTaskInfo() { 1757 } 1758 1759 public int describeContents() { 1760 return 0; 1761 } 1762 1763 public void writeToParcel(Parcel dest, int flags) { 1764 dest.writeInt(id); 1765 dest.writeInt(stackId); 1766 ComponentName.writeToParcel(baseActivity, dest); 1767 ComponentName.writeToParcel(topActivity, dest); 1768 if (thumbnail != null) { 1769 dest.writeInt(1); 1770 thumbnail.writeToParcel(dest, 0); 1771 } else { 1772 dest.writeInt(0); 1773 } 1774 TextUtils.writeToParcel(description, dest, 1775 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1776 dest.writeInt(numActivities); 1777 dest.writeInt(numRunning); 1778 dest.writeInt(isDockable ? 1 : 0); 1779 dest.writeInt(resizeMode); 1780 } 1781 1782 public void readFromParcel(Parcel source) { 1783 id = source.readInt(); 1784 stackId = source.readInt(); 1785 baseActivity = ComponentName.readFromParcel(source); 1786 topActivity = ComponentName.readFromParcel(source); 1787 if (source.readInt() != 0) { 1788 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1789 } else { 1790 thumbnail = null; 1791 } 1792 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1793 numActivities = source.readInt(); 1794 numRunning = source.readInt(); 1795 isDockable = source.readInt() != 0; 1796 resizeMode = source.readInt(); 1797 } 1798 1799 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1800 public RunningTaskInfo createFromParcel(Parcel source) { 1801 return new RunningTaskInfo(source); 1802 } 1803 public RunningTaskInfo[] newArray(int size) { 1804 return new RunningTaskInfo[size]; 1805 } 1806 }; 1807 1808 private RunningTaskInfo(Parcel source) { 1809 readFromParcel(source); 1810 } 1811 } 1812 1813 /** 1814 * Get the list of tasks associated with the calling application. 1815 * 1816 * @return The list of tasks associated with the application making this call. 1817 * @throws SecurityException 1818 */ 1819 public List<ActivityManager.AppTask> getAppTasks() { 1820 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1821 List<IBinder> appTasks; 1822 try { 1823 appTasks = getService().getAppTasks(mContext.getPackageName()); 1824 } catch (RemoteException e) { 1825 throw e.rethrowFromSystemServer(); 1826 } 1827 int numAppTasks = appTasks.size(); 1828 for (int i = 0; i < numAppTasks; i++) { 1829 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1830 } 1831 return tasks; 1832 } 1833 1834 /** 1835 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1836 * with {@link #addAppTask}. 1837 */ 1838 public Size getAppTaskThumbnailSize() { 1839 synchronized (this) { 1840 ensureAppTaskThumbnailSizeLocked(); 1841 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1842 } 1843 } 1844 1845 private void ensureAppTaskThumbnailSizeLocked() { 1846 if (mAppTaskThumbnailSize == null) { 1847 try { 1848 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1849 } catch (RemoteException e) { 1850 throw e.rethrowFromSystemServer(); 1851 } 1852 } 1853 } 1854 1855 /** 1856 * Add a new {@link AppTask} for the calling application. This will create a new 1857 * recents entry that is added to the <b>end</b> of all existing recents. 1858 * 1859 * @param activity The activity that is adding the entry. This is used to help determine 1860 * the context that the new recents entry will be in. 1861 * @param intent The Intent that describes the recents entry. This is the same Intent that 1862 * you would have used to launch the activity for it. In generally you will want to set 1863 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1864 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1865 * entry will exist without an activity, so it doesn't make sense to not retain it when 1866 * its activity disappears. The given Intent here also must have an explicit ComponentName 1867 * set on it. 1868 * @param description Optional additional description information. 1869 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1870 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1871 * recreated in your process, probably in a way you don't like, before the recents entry 1872 * is added. 1873 * 1874 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1875 * most likely cause of failure is that there is no more room for more tasks for your app. 1876 */ 1877 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1878 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1879 Point size; 1880 synchronized (this) { 1881 ensureAppTaskThumbnailSizeLocked(); 1882 size = mAppTaskThumbnailSize; 1883 } 1884 final int tw = thumbnail.getWidth(); 1885 final int th = thumbnail.getHeight(); 1886 if (tw != size.x || th != size.y) { 1887 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1888 1889 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1890 float scale; 1891 float dx = 0, dy = 0; 1892 if (tw * size.x > size.y * th) { 1893 scale = (float) size.x / (float) th; 1894 dx = (size.y - tw * scale) * 0.5f; 1895 } else { 1896 scale = (float) size.y / (float) tw; 1897 dy = (size.x - th * scale) * 0.5f; 1898 } 1899 Matrix matrix = new Matrix(); 1900 matrix.setScale(scale, scale); 1901 matrix.postTranslate((int) (dx + 0.5f), 0); 1902 1903 Canvas canvas = new Canvas(bm); 1904 canvas.drawBitmap(thumbnail, matrix, null); 1905 canvas.setBitmap(null); 1906 1907 thumbnail = bm; 1908 } 1909 if (description == null) { 1910 description = new TaskDescription(); 1911 } 1912 try { 1913 return getService().addAppTask(activity.getActivityToken(), 1914 intent, description, thumbnail); 1915 } catch (RemoteException e) { 1916 throw e.rethrowFromSystemServer(); 1917 } 1918 } 1919 1920 /** 1921 * Return a list of the tasks that are currently running, with 1922 * the most recent being first and older ones after in order. Note that 1923 * "running" does not mean any of the task's code is currently loaded or 1924 * activity -- the task may have been frozen by the system, so that it 1925 * can be restarted in its previous state when next brought to the 1926 * foreground. 1927 * 1928 * <p><b>Note: this method is only intended for debugging and presenting 1929 * task management user interfaces</b>. This should never be used for 1930 * core logic in an application, such as deciding between different 1931 * behaviors based on the information found here. Such uses are 1932 * <em>not</em> supported, and will likely break in the future. For 1933 * example, if multiple applications can be actively running at the 1934 * same time, assumptions made about the meaning of the data here for 1935 * purposes of control flow will be incorrect.</p> 1936 * 1937 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1938 * is no longer available to third party 1939 * applications: the introduction of document-centric recents means 1940 * it can leak person information to the caller. For backwards compatibility, 1941 * it will still retu rn a small subset of its data: at least the caller's 1942 * own tasks, and possibly some other tasks 1943 * such as home that are known to not be sensitive. 1944 * 1945 * @param maxNum The maximum number of entries to return in the list. The 1946 * actual number returned may be smaller, depending on how many tasks the 1947 * user has started. 1948 * 1949 * @return Returns a list of RunningTaskInfo records describing each of 1950 * the running tasks. 1951 */ 1952 @Deprecated 1953 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1954 throws SecurityException { 1955 try { 1956 return getService().getTasks(maxNum, 0); 1957 } catch (RemoteException e) { 1958 throw e.rethrowFromSystemServer(); 1959 } 1960 } 1961 1962 /** 1963 * Completely remove the given task. 1964 * 1965 * @param taskId Identifier of the task to be removed. 1966 * @return Returns true if the given task was found and removed. 1967 * 1968 * @hide 1969 */ 1970 public boolean removeTask(int taskId) throws SecurityException { 1971 try { 1972 return getService().removeTask(taskId); 1973 } catch (RemoteException e) { 1974 throw e.rethrowFromSystemServer(); 1975 } 1976 } 1977 1978 /** 1979 * Metadata related to the {@link TaskThumbnail}. 1980 * 1981 * @hide 1982 */ 1983 public static class TaskThumbnailInfo implements Parcelable { 1984 /** @hide */ 1985 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1986 private static final String ATTR_TASK_WIDTH = 1987 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1988 private static final String ATTR_TASK_HEIGHT = 1989 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1990 private static final String ATTR_SCREEN_ORIENTATION = 1991 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1992 1993 public int taskWidth; 1994 public int taskHeight; 1995 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1996 1997 public TaskThumbnailInfo() { 1998 // Do nothing 1999 } 2000 2001 private TaskThumbnailInfo(Parcel source) { 2002 readFromParcel(source); 2003 } 2004 2005 /** 2006 * Resets this info state to the initial state. 2007 * @hide 2008 */ 2009 public void reset() { 2010 taskWidth = 0; 2011 taskHeight = 0; 2012 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2013 } 2014 2015 /** 2016 * Copies from another ThumbnailInfo. 2017 */ 2018 public void copyFrom(TaskThumbnailInfo o) { 2019 taskWidth = o.taskWidth; 2020 taskHeight = o.taskHeight; 2021 screenOrientation = o.screenOrientation; 2022 } 2023 2024 /** @hide */ 2025 public void saveToXml(XmlSerializer out) throws IOException { 2026 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2027 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2028 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2029 } 2030 2031 /** @hide */ 2032 public void restoreFromXml(String attrName, String attrValue) { 2033 if (ATTR_TASK_WIDTH.equals(attrName)) { 2034 taskWidth = Integer.parseInt(attrValue); 2035 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2036 taskHeight = Integer.parseInt(attrValue); 2037 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2038 screenOrientation = Integer.parseInt(attrValue); 2039 } 2040 } 2041 2042 public int describeContents() { 2043 return 0; 2044 } 2045 2046 public void writeToParcel(Parcel dest, int flags) { 2047 dest.writeInt(taskWidth); 2048 dest.writeInt(taskHeight); 2049 dest.writeInt(screenOrientation); 2050 } 2051 2052 public void readFromParcel(Parcel source) { 2053 taskWidth = source.readInt(); 2054 taskHeight = source.readInt(); 2055 screenOrientation = source.readInt(); 2056 } 2057 2058 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2059 public TaskThumbnailInfo createFromParcel(Parcel source) { 2060 return new TaskThumbnailInfo(source); 2061 } 2062 public TaskThumbnailInfo[] newArray(int size) { 2063 return new TaskThumbnailInfo[size]; 2064 } 2065 }; 2066 } 2067 2068 /** @hide */ 2069 public static class TaskThumbnail implements Parcelable { 2070 public Bitmap mainThumbnail; 2071 public ParcelFileDescriptor thumbnailFileDescriptor; 2072 public TaskThumbnailInfo thumbnailInfo; 2073 2074 public TaskThumbnail() { 2075 } 2076 2077 private TaskThumbnail(Parcel source) { 2078 readFromParcel(source); 2079 } 2080 2081 public int describeContents() { 2082 if (thumbnailFileDescriptor != null) { 2083 return thumbnailFileDescriptor.describeContents(); 2084 } 2085 return 0; 2086 } 2087 2088 public void writeToParcel(Parcel dest, int flags) { 2089 if (mainThumbnail != null) { 2090 dest.writeInt(1); 2091 mainThumbnail.writeToParcel(dest, flags); 2092 } else { 2093 dest.writeInt(0); 2094 } 2095 if (thumbnailFileDescriptor != null) { 2096 dest.writeInt(1); 2097 thumbnailFileDescriptor.writeToParcel(dest, flags); 2098 } else { 2099 dest.writeInt(0); 2100 } 2101 if (thumbnailInfo != null) { 2102 dest.writeInt(1); 2103 thumbnailInfo.writeToParcel(dest, flags); 2104 } else { 2105 dest.writeInt(0); 2106 } 2107 } 2108 2109 public void readFromParcel(Parcel source) { 2110 if (source.readInt() != 0) { 2111 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2112 } else { 2113 mainThumbnail = null; 2114 } 2115 if (source.readInt() != 0) { 2116 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2117 } else { 2118 thumbnailFileDescriptor = null; 2119 } 2120 if (source.readInt() != 0) { 2121 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2122 } else { 2123 thumbnailInfo = null; 2124 } 2125 } 2126 2127 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2128 public TaskThumbnail createFromParcel(Parcel source) { 2129 return new TaskThumbnail(source); 2130 } 2131 public TaskThumbnail[] newArray(int size) { 2132 return new TaskThumbnail[size]; 2133 } 2134 }; 2135 } 2136 2137 /** 2138 * Represents a task snapshot. 2139 * @hide 2140 */ 2141 public static class TaskSnapshot implements Parcelable { 2142 2143 private final GraphicBuffer mSnapshot; 2144 private final int mOrientation; 2145 private final Rect mContentInsets; 2146 2147 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets) { 2148 mSnapshot = snapshot; 2149 mOrientation = orientation; 2150 mContentInsets = new Rect(contentInsets); 2151 } 2152 2153 private TaskSnapshot(Parcel source) { 2154 mSnapshot = source.readParcelable(null /* classLoader */); 2155 mOrientation = source.readInt(); 2156 mContentInsets = source.readParcelable(null /* classLoader */); 2157 } 2158 2159 public GraphicBuffer getSnapshot() { 2160 return mSnapshot; 2161 } 2162 2163 public int getOrientation() { 2164 return mOrientation; 2165 } 2166 2167 public Rect getContentInsets() { 2168 return mContentInsets; 2169 } 2170 2171 @Override 2172 public int describeContents() { 2173 return 0; 2174 } 2175 2176 @Override 2177 public void writeToParcel(Parcel dest, int flags) { 2178 dest.writeParcelable(mSnapshot, 0); 2179 dest.writeInt(mOrientation); 2180 dest.writeParcelable(mContentInsets, 0); 2181 } 2182 2183 @Override 2184 public String toString() { 2185 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2186 + " mContentInsets=" + mContentInsets.toShortString(); 2187 } 2188 2189 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2190 public TaskSnapshot createFromParcel(Parcel source) { 2191 return new TaskSnapshot(source); 2192 } 2193 public TaskSnapshot[] newArray(int size) { 2194 return new TaskSnapshot[size]; 2195 } 2196 }; 2197 } 2198 2199 /** @hide */ 2200 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2201 try { 2202 return getService().getTaskThumbnail(id); 2203 } catch (RemoteException e) { 2204 throw e.rethrowFromSystemServer(); 2205 } 2206 } 2207 2208 /** 2209 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2210 * activity along with the task, so it is positioned immediately behind 2211 * the task. 2212 */ 2213 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2214 2215 /** 2216 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2217 * user-instigated action, so the current activity will not receive a 2218 * hint that the user is leaving. 2219 */ 2220 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2221 2222 /** 2223 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2224 * with a null options argument. 2225 * 2226 * @param taskId The identifier of the task to be moved, as found in 2227 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2228 * @param flags Additional operational flags, 0 or more of 2229 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2230 */ 2231 public void moveTaskToFront(int taskId, int flags) { 2232 moveTaskToFront(taskId, flags, null); 2233 } 2234 2235 /** 2236 * Ask that the task associated with a given task ID be moved to the 2237 * front of the stack, so it is now visible to the user. Requires that 2238 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2239 * or a SecurityException will be thrown. 2240 * 2241 * @param taskId The identifier of the task to be moved, as found in 2242 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2243 * @param flags Additional operational flags, 0 or more of 2244 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2245 * @param options Additional options for the operation, either null or 2246 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2247 * Context.startActivity(Intent, Bundle)}. 2248 */ 2249 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2250 try { 2251 getService().moveTaskToFront(taskId, flags, options); 2252 } catch (RemoteException e) { 2253 throw e.rethrowFromSystemServer(); 2254 } 2255 } 2256 2257 /** 2258 * Information you can retrieve about a particular Service that is 2259 * currently running in the system. 2260 */ 2261 public static class RunningServiceInfo implements Parcelable { 2262 /** 2263 * The service component. 2264 */ 2265 public ComponentName service; 2266 2267 /** 2268 * If non-zero, this is the process the service is running in. 2269 */ 2270 public int pid; 2271 2272 /** 2273 * The UID that owns this service. 2274 */ 2275 public int uid; 2276 2277 /** 2278 * The name of the process this service runs in. 2279 */ 2280 public String process; 2281 2282 /** 2283 * Set to true if the service has asked to run as a foreground process. 2284 */ 2285 public boolean foreground; 2286 2287 /** 2288 * The time when the service was first made active, either by someone 2289 * starting or binding to it. This 2290 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2291 */ 2292 public long activeSince; 2293 2294 /** 2295 * Set to true if this service has been explicitly started. 2296 */ 2297 public boolean started; 2298 2299 /** 2300 * Number of clients connected to the service. 2301 */ 2302 public int clientCount; 2303 2304 /** 2305 * Number of times the service's process has crashed while the service 2306 * is running. 2307 */ 2308 public int crashCount; 2309 2310 /** 2311 * The time when there was last activity in the service (either 2312 * explicit requests to start it or clients binding to it). This 2313 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2314 */ 2315 public long lastActivityTime; 2316 2317 /** 2318 * If non-zero, this service is not currently running, but scheduled to 2319 * restart at the given time. 2320 */ 2321 public long restarting; 2322 2323 /** 2324 * Bit for {@link #flags}: set if this service has been 2325 * explicitly started. 2326 */ 2327 public static final int FLAG_STARTED = 1<<0; 2328 2329 /** 2330 * Bit for {@link #flags}: set if the service has asked to 2331 * run as a foreground process. 2332 */ 2333 public static final int FLAG_FOREGROUND = 1<<1; 2334 2335 /** 2336 * Bit for {@link #flags): set if the service is running in a 2337 * core system process. 2338 */ 2339 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2340 2341 /** 2342 * Bit for {@link #flags): set if the service is running in a 2343 * persistent process. 2344 */ 2345 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2346 2347 /** 2348 * Running flags. 2349 */ 2350 public int flags; 2351 2352 /** 2353 * For special services that are bound to by system code, this is 2354 * the package that holds the binding. 2355 */ 2356 public String clientPackage; 2357 2358 /** 2359 * For special services that are bound to by system code, this is 2360 * a string resource providing a user-visible label for who the 2361 * client is. 2362 */ 2363 public int clientLabel; 2364 2365 public RunningServiceInfo() { 2366 } 2367 2368 public int describeContents() { 2369 return 0; 2370 } 2371 2372 public void writeToParcel(Parcel dest, int flags) { 2373 ComponentName.writeToParcel(service, dest); 2374 dest.writeInt(pid); 2375 dest.writeInt(uid); 2376 dest.writeString(process); 2377 dest.writeInt(foreground ? 1 : 0); 2378 dest.writeLong(activeSince); 2379 dest.writeInt(started ? 1 : 0); 2380 dest.writeInt(clientCount); 2381 dest.writeInt(crashCount); 2382 dest.writeLong(lastActivityTime); 2383 dest.writeLong(restarting); 2384 dest.writeInt(this.flags); 2385 dest.writeString(clientPackage); 2386 dest.writeInt(clientLabel); 2387 } 2388 2389 public void readFromParcel(Parcel source) { 2390 service = ComponentName.readFromParcel(source); 2391 pid = source.readInt(); 2392 uid = source.readInt(); 2393 process = source.readString(); 2394 foreground = source.readInt() != 0; 2395 activeSince = source.readLong(); 2396 started = source.readInt() != 0; 2397 clientCount = source.readInt(); 2398 crashCount = source.readInt(); 2399 lastActivityTime = source.readLong(); 2400 restarting = source.readLong(); 2401 flags = source.readInt(); 2402 clientPackage = source.readString(); 2403 clientLabel = source.readInt(); 2404 } 2405 2406 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2407 public RunningServiceInfo createFromParcel(Parcel source) { 2408 return new RunningServiceInfo(source); 2409 } 2410 public RunningServiceInfo[] newArray(int size) { 2411 return new RunningServiceInfo[size]; 2412 } 2413 }; 2414 2415 private RunningServiceInfo(Parcel source) { 2416 readFromParcel(source); 2417 } 2418 } 2419 2420 /** 2421 * Return a list of the services that are currently running. 2422 * 2423 * <p><b>Note: this method is only intended for debugging or implementing 2424 * service management type user interfaces.</b></p> 2425 * 2426 * @param maxNum The maximum number of entries to return in the list. The 2427 * actual number returned may be smaller, depending on how many services 2428 * are running. 2429 * 2430 * @return Returns a list of RunningServiceInfo records describing each of 2431 * the running tasks. 2432 */ 2433 public List<RunningServiceInfo> getRunningServices(int maxNum) 2434 throws SecurityException { 2435 try { 2436 return getService() 2437 .getServices(maxNum, 0); 2438 } catch (RemoteException e) { 2439 throw e.rethrowFromSystemServer(); 2440 } 2441 } 2442 2443 /** 2444 * Returns a PendingIntent you can start to show a control panel for the 2445 * given running service. If the service does not have a control panel, 2446 * null is returned. 2447 */ 2448 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2449 throws SecurityException { 2450 try { 2451 return getService() 2452 .getRunningServiceControlPanel(service); 2453 } catch (RemoteException e) { 2454 throw e.rethrowFromSystemServer(); 2455 } 2456 } 2457 2458 /** 2459 * Information you can retrieve about the available memory through 2460 * {@link ActivityManager#getMemoryInfo}. 2461 */ 2462 public static class MemoryInfo implements Parcelable { 2463 /** 2464 * The available memory on the system. This number should not 2465 * be considered absolute: due to the nature of the kernel, a significant 2466 * portion of this memory is actually in use and needed for the overall 2467 * system to run well. 2468 */ 2469 public long availMem; 2470 2471 /** 2472 * The total memory accessible by the kernel. This is basically the 2473 * RAM size of the device, not including below-kernel fixed allocations 2474 * like DMA buffers, RAM for the baseband CPU, etc. 2475 */ 2476 public long totalMem; 2477 2478 /** 2479 * The threshold of {@link #availMem} at which we consider memory to be 2480 * low and start killing background services and other non-extraneous 2481 * processes. 2482 */ 2483 public long threshold; 2484 2485 /** 2486 * Set to true if the system considers itself to currently be in a low 2487 * memory situation. 2488 */ 2489 public boolean lowMemory; 2490 2491 /** @hide */ 2492 public long hiddenAppThreshold; 2493 /** @hide */ 2494 public long secondaryServerThreshold; 2495 /** @hide */ 2496 public long visibleAppThreshold; 2497 /** @hide */ 2498 public long foregroundAppThreshold; 2499 2500 public MemoryInfo() { 2501 } 2502 2503 public int describeContents() { 2504 return 0; 2505 } 2506 2507 public void writeToParcel(Parcel dest, int flags) { 2508 dest.writeLong(availMem); 2509 dest.writeLong(totalMem); 2510 dest.writeLong(threshold); 2511 dest.writeInt(lowMemory ? 1 : 0); 2512 dest.writeLong(hiddenAppThreshold); 2513 dest.writeLong(secondaryServerThreshold); 2514 dest.writeLong(visibleAppThreshold); 2515 dest.writeLong(foregroundAppThreshold); 2516 } 2517 2518 public void readFromParcel(Parcel source) { 2519 availMem = source.readLong(); 2520 totalMem = source.readLong(); 2521 threshold = source.readLong(); 2522 lowMemory = source.readInt() != 0; 2523 hiddenAppThreshold = source.readLong(); 2524 secondaryServerThreshold = source.readLong(); 2525 visibleAppThreshold = source.readLong(); 2526 foregroundAppThreshold = source.readLong(); 2527 } 2528 2529 public static final Creator<MemoryInfo> CREATOR 2530 = new Creator<MemoryInfo>() { 2531 public MemoryInfo createFromParcel(Parcel source) { 2532 return new MemoryInfo(source); 2533 } 2534 public MemoryInfo[] newArray(int size) { 2535 return new MemoryInfo[size]; 2536 } 2537 }; 2538 2539 private MemoryInfo(Parcel source) { 2540 readFromParcel(source); 2541 } 2542 } 2543 2544 /** 2545 * Return general information about the memory state of the system. This 2546 * can be used to help decide how to manage your own memory, though note 2547 * that polling is not recommended and 2548 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2549 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2550 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2551 * level of your process as needed, which gives a better hint for how to 2552 * manage its memory. 2553 */ 2554 public void getMemoryInfo(MemoryInfo outInfo) { 2555 try { 2556 getService().getMemoryInfo(outInfo); 2557 } catch (RemoteException e) { 2558 throw e.rethrowFromSystemServer(); 2559 } 2560 } 2561 2562 /** 2563 * Information you can retrieve about an ActivityStack in the system. 2564 * @hide 2565 */ 2566 public static class StackInfo implements Parcelable { 2567 public int stackId; 2568 public Rect bounds = new Rect(); 2569 public int[] taskIds; 2570 public String[] taskNames; 2571 public Rect[] taskBounds; 2572 public int[] taskUserIds; 2573 public ComponentName topActivity; 2574 public int displayId; 2575 public int userId; 2576 public boolean visible; 2577 // Index of the stack in the display's stack list, can be used for comparison of stack order 2578 public int position; 2579 2580 @Override 2581 public int describeContents() { 2582 return 0; 2583 } 2584 2585 @Override 2586 public void writeToParcel(Parcel dest, int flags) { 2587 dest.writeInt(stackId); 2588 dest.writeInt(bounds.left); 2589 dest.writeInt(bounds.top); 2590 dest.writeInt(bounds.right); 2591 dest.writeInt(bounds.bottom); 2592 dest.writeIntArray(taskIds); 2593 dest.writeStringArray(taskNames); 2594 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2595 dest.writeInt(boundsCount); 2596 for (int i = 0; i < boundsCount; i++) { 2597 dest.writeInt(taskBounds[i].left); 2598 dest.writeInt(taskBounds[i].top); 2599 dest.writeInt(taskBounds[i].right); 2600 dest.writeInt(taskBounds[i].bottom); 2601 } 2602 dest.writeIntArray(taskUserIds); 2603 dest.writeInt(displayId); 2604 dest.writeInt(userId); 2605 dest.writeInt(visible ? 1 : 0); 2606 dest.writeInt(position); 2607 if (topActivity != null) { 2608 dest.writeInt(1); 2609 topActivity.writeToParcel(dest, 0); 2610 } else { 2611 dest.writeInt(0); 2612 } 2613 } 2614 2615 public void readFromParcel(Parcel source) { 2616 stackId = source.readInt(); 2617 bounds = new Rect( 2618 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2619 taskIds = source.createIntArray(); 2620 taskNames = source.createStringArray(); 2621 final int boundsCount = source.readInt(); 2622 if (boundsCount > 0) { 2623 taskBounds = new Rect[boundsCount]; 2624 for (int i = 0; i < boundsCount; i++) { 2625 taskBounds[i] = new Rect(); 2626 taskBounds[i].set( 2627 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2628 } 2629 } else { 2630 taskBounds = null; 2631 } 2632 taskUserIds = source.createIntArray(); 2633 displayId = source.readInt(); 2634 userId = source.readInt(); 2635 visible = source.readInt() > 0; 2636 position = source.readInt(); 2637 if (source.readInt() > 0) { 2638 topActivity = ComponentName.readFromParcel(source); 2639 } 2640 } 2641 2642 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2643 @Override 2644 public StackInfo createFromParcel(Parcel source) { 2645 return new StackInfo(source); 2646 } 2647 @Override 2648 public StackInfo[] newArray(int size) { 2649 return new StackInfo[size]; 2650 } 2651 }; 2652 2653 public StackInfo() { 2654 } 2655 2656 private StackInfo(Parcel source) { 2657 readFromParcel(source); 2658 } 2659 2660 public String toString(String prefix) { 2661 StringBuilder sb = new StringBuilder(256); 2662 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2663 sb.append(" bounds="); sb.append(bounds.toShortString()); 2664 sb.append(" displayId="); sb.append(displayId); 2665 sb.append(" userId="); sb.append(userId); 2666 sb.append("\n"); 2667 prefix = prefix + " "; 2668 for (int i = 0; i < taskIds.length; ++i) { 2669 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2670 sb.append(": "); sb.append(taskNames[i]); 2671 if (taskBounds != null) { 2672 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2673 } 2674 sb.append(" userId=").append(taskUserIds[i]); 2675 sb.append(" visible=").append(visible); 2676 if (topActivity != null) { 2677 sb.append(" topActivity=").append(topActivity); 2678 } 2679 sb.append("\n"); 2680 } 2681 return sb.toString(); 2682 } 2683 2684 @Override 2685 public String toString() { 2686 return toString(""); 2687 } 2688 } 2689 2690 /** 2691 * @hide 2692 */ 2693 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2694 try { 2695 return getService().clearApplicationUserData(packageName, 2696 observer, UserHandle.myUserId()); 2697 } catch (RemoteException e) { 2698 throw e.rethrowFromSystemServer(); 2699 } 2700 } 2701 2702 /** 2703 * Permits an application to erase its own data from disk. This is equivalent to 2704 * the user choosing to clear the app's data from within the device settings UI. It 2705 * erases all dynamic data associated with the app -- its private data and data in its 2706 * private area on external storage -- but does not remove the installed application 2707 * itself, nor any OBB files. 2708 * 2709 * @return {@code true} if the application successfully requested that the application's 2710 * data be erased; {@code false} otherwise. 2711 */ 2712 public boolean clearApplicationUserData() { 2713 return clearApplicationUserData(mContext.getPackageName(), null); 2714 } 2715 2716 2717 /** 2718 * Permits an application to get the persistent URI permissions granted to another. 2719 * 2720 * <p>Typically called by Settings. 2721 * 2722 * @param packageName application to look for the granted permissions 2723 * @return list of granted URI permissions 2724 * 2725 * @hide 2726 */ 2727 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2728 try { 2729 return getService().getGrantedUriPermissions(packageName, 2730 UserHandle.myUserId()); 2731 } catch (RemoteException e) { 2732 throw e.rethrowFromSystemServer(); 2733 } 2734 } 2735 2736 /** 2737 * Permits an application to clear the persistent URI permissions granted to another. 2738 * 2739 * <p>Typically called by Settings. 2740 * 2741 * @param packageName application to clear its granted permissions 2742 * 2743 * @hide 2744 */ 2745 public void clearGrantedUriPermissions(String packageName) { 2746 try { 2747 getService().clearGrantedUriPermissions(packageName, 2748 UserHandle.myUserId()); 2749 } catch (RemoteException e) { 2750 throw e.rethrowFromSystemServer(); 2751 } 2752 } 2753 2754 /** 2755 * Information you can retrieve about any processes that are in an error condition. 2756 */ 2757 public static class ProcessErrorStateInfo implements Parcelable { 2758 /** 2759 * Condition codes 2760 */ 2761 public static final int NO_ERROR = 0; 2762 public static final int CRASHED = 1; 2763 public static final int NOT_RESPONDING = 2; 2764 2765 /** 2766 * The condition that the process is in. 2767 */ 2768 public int condition; 2769 2770 /** 2771 * The process name in which the crash or error occurred. 2772 */ 2773 public String processName; 2774 2775 /** 2776 * The pid of this process; 0 if none 2777 */ 2778 public int pid; 2779 2780 /** 2781 * The kernel user-ID that has been assigned to this process; 2782 * currently this is not a unique ID (multiple applications can have 2783 * the same uid). 2784 */ 2785 public int uid; 2786 2787 /** 2788 * The activity name associated with the error, if known. May be null. 2789 */ 2790 public String tag; 2791 2792 /** 2793 * A short message describing the error condition. 2794 */ 2795 public String shortMsg; 2796 2797 /** 2798 * A long message describing the error condition. 2799 */ 2800 public String longMsg; 2801 2802 /** 2803 * The stack trace where the error originated. May be null. 2804 */ 2805 public String stackTrace; 2806 2807 /** 2808 * to be deprecated: This value will always be null. 2809 */ 2810 public byte[] crashData = null; 2811 2812 public ProcessErrorStateInfo() { 2813 } 2814 2815 @Override 2816 public int describeContents() { 2817 return 0; 2818 } 2819 2820 @Override 2821 public void writeToParcel(Parcel dest, int flags) { 2822 dest.writeInt(condition); 2823 dest.writeString(processName); 2824 dest.writeInt(pid); 2825 dest.writeInt(uid); 2826 dest.writeString(tag); 2827 dest.writeString(shortMsg); 2828 dest.writeString(longMsg); 2829 dest.writeString(stackTrace); 2830 } 2831 2832 public void readFromParcel(Parcel source) { 2833 condition = source.readInt(); 2834 processName = source.readString(); 2835 pid = source.readInt(); 2836 uid = source.readInt(); 2837 tag = source.readString(); 2838 shortMsg = source.readString(); 2839 longMsg = source.readString(); 2840 stackTrace = source.readString(); 2841 } 2842 2843 public static final Creator<ProcessErrorStateInfo> CREATOR = 2844 new Creator<ProcessErrorStateInfo>() { 2845 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2846 return new ProcessErrorStateInfo(source); 2847 } 2848 public ProcessErrorStateInfo[] newArray(int size) { 2849 return new ProcessErrorStateInfo[size]; 2850 } 2851 }; 2852 2853 private ProcessErrorStateInfo(Parcel source) { 2854 readFromParcel(source); 2855 } 2856 } 2857 2858 /** 2859 * Returns a list of any processes that are currently in an error condition. The result 2860 * will be null if all processes are running properly at this time. 2861 * 2862 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2863 * current error conditions (it will not return an empty list). This list ordering is not 2864 * specified. 2865 */ 2866 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2867 try { 2868 return getService().getProcessesInErrorState(); 2869 } catch (RemoteException e) { 2870 throw e.rethrowFromSystemServer(); 2871 } 2872 } 2873 2874 /** 2875 * Information you can retrieve about a running process. 2876 */ 2877 public static class RunningAppProcessInfo implements Parcelable { 2878 /** 2879 * The name of the process that this object is associated with 2880 */ 2881 public String processName; 2882 2883 /** 2884 * The pid of this process; 0 if none 2885 */ 2886 public int pid; 2887 2888 /** 2889 * The user id of this process. 2890 */ 2891 public int uid; 2892 2893 /** 2894 * All packages that have been loaded into the process. 2895 */ 2896 public String pkgList[]; 2897 2898 /** 2899 * Constant for {@link #flags}: this is an app that is unable to 2900 * correctly save its state when going to the background, 2901 * so it can not be killed while in the background. 2902 * @hide 2903 */ 2904 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2905 2906 /** 2907 * Constant for {@link #flags}: this process is associated with a 2908 * persistent system app. 2909 * @hide 2910 */ 2911 public static final int FLAG_PERSISTENT = 1<<1; 2912 2913 /** 2914 * Constant for {@link #flags}: this process is associated with a 2915 * persistent system app. 2916 * @hide 2917 */ 2918 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2919 2920 /** 2921 * Flags of information. May be any of 2922 * {@link #FLAG_CANT_SAVE_STATE}. 2923 * @hide 2924 */ 2925 public int flags; 2926 2927 /** 2928 * Last memory trim level reported to the process: corresponds to 2929 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2930 * ComponentCallbacks2.onTrimMemory(int)}. 2931 */ 2932 public int lastTrimLevel; 2933 2934 /** 2935 * Constant for {@link #importance}: This process is running the 2936 * foreground UI; that is, it is the thing currently at the top of the screen 2937 * that the user is interacting with. 2938 */ 2939 public static final int IMPORTANCE_FOREGROUND = 100; 2940 2941 /** 2942 * Constant for {@link #importance}: This process is running a foreground 2943 * service, for example to perform music playback even while the user is 2944 * not immediately in the app. This generally indicates that the process 2945 * is doing something the user actively cares about. 2946 */ 2947 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2948 2949 /** 2950 * Constant for {@link #importance}: This process is running the foreground 2951 * UI, but the device is asleep so it is not visible to the user. This means 2952 * the user is not really aware of the process, because they can not see or 2953 * interact with it, but it is quite important because it what they expect to 2954 * return to once unlocking the device. 2955 */ 2956 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2957 2958 /** 2959 * Constant for {@link #importance}: This process is running something 2960 * that is actively visible to the user, though not in the immediate 2961 * foreground. This may be running a window that is behind the current 2962 * foreground (so paused and with its state saved, not interacting with 2963 * the user, but visible to them to some degree); it may also be running 2964 * other services under the system's control that it inconsiders important. 2965 */ 2966 public static final int IMPORTANCE_VISIBLE = 200; 2967 2968 /** 2969 * Constant for {@link #importance}: This process is not something the user 2970 * is directly aware of, but is otherwise perceptable to them to some degree. 2971 */ 2972 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2973 2974 /** 2975 * Constant for {@link #importance}: This process is running an 2976 * application that can not save its state, and thus can't be killed 2977 * while in the background. 2978 * @hide 2979 */ 2980 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2981 2982 /** 2983 * Constant for {@link #importance}: This process is contains services 2984 * that should remain running. These are background services apps have 2985 * started, not something the user is aware of, so they may be killed by 2986 * the system relatively freely (though it is generally desired that they 2987 * stay running as long as they want to). 2988 */ 2989 public static final int IMPORTANCE_SERVICE = 300; 2990 2991 /** 2992 * Constant for {@link #importance}: This process process contains 2993 * background code that is expendable. 2994 */ 2995 public static final int IMPORTANCE_BACKGROUND = 400; 2996 2997 /** 2998 * Constant for {@link #importance}: This process is empty of any 2999 * actively running code. 3000 */ 3001 public static final int IMPORTANCE_EMPTY = 500; 3002 3003 /** 3004 * Constant for {@link #importance}: This process does not exist. 3005 */ 3006 public static final int IMPORTANCE_GONE = 1000; 3007 3008 /** @hide */ 3009 public static int procStateToImportance(int procState) { 3010 if (procState == PROCESS_STATE_NONEXISTENT) { 3011 return IMPORTANCE_GONE; 3012 } else if (procState >= PROCESS_STATE_HOME) { 3013 return IMPORTANCE_BACKGROUND; 3014 } else if (procState >= PROCESS_STATE_SERVICE) { 3015 return IMPORTANCE_SERVICE; 3016 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3017 return IMPORTANCE_CANT_SAVE_STATE; 3018 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3019 return IMPORTANCE_PERCEPTIBLE; 3020 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3021 return IMPORTANCE_VISIBLE; 3022 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3023 return IMPORTANCE_TOP_SLEEPING; 3024 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3025 return IMPORTANCE_FOREGROUND_SERVICE; 3026 } else { 3027 return IMPORTANCE_FOREGROUND; 3028 } 3029 } 3030 3031 /** @hide */ 3032 public static int importanceToProcState(int importance) { 3033 if (importance == IMPORTANCE_GONE) { 3034 return PROCESS_STATE_NONEXISTENT; 3035 } else if (importance >= IMPORTANCE_BACKGROUND) { 3036 return PROCESS_STATE_HOME; 3037 } else if (importance >= IMPORTANCE_SERVICE) { 3038 return PROCESS_STATE_SERVICE; 3039 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3040 return PROCESS_STATE_HEAVY_WEIGHT; 3041 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3042 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3043 } else if (importance >= IMPORTANCE_VISIBLE) { 3044 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3045 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3046 return PROCESS_STATE_TOP_SLEEPING; 3047 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3048 return PROCESS_STATE_FOREGROUND_SERVICE; 3049 } else { 3050 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3051 } 3052 } 3053 3054 /** 3055 * The relative importance level that the system places on this 3056 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3057 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 3058 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 3059 * constants are numbered so that "more important" values are always 3060 * smaller than "less important" values. 3061 */ 3062 public int importance; 3063 3064 /** 3065 * An additional ordering within a particular {@link #importance} 3066 * category, providing finer-grained information about the relative 3067 * utility of processes within a category. This number means nothing 3068 * except that a smaller values are more recently used (and thus 3069 * more important). Currently an LRU value is only maintained for 3070 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 3071 * be maintained in the future. 3072 */ 3073 public int lru; 3074 3075 /** 3076 * Constant for {@link #importanceReasonCode}: nothing special has 3077 * been specified for the reason for this level. 3078 */ 3079 public static final int REASON_UNKNOWN = 0; 3080 3081 /** 3082 * Constant for {@link #importanceReasonCode}: one of the application's 3083 * content providers is being used by another process. The pid of 3084 * the client process is in {@link #importanceReasonPid} and the 3085 * target provider in this process is in 3086 * {@link #importanceReasonComponent}. 3087 */ 3088 public static final int REASON_PROVIDER_IN_USE = 1; 3089 3090 /** 3091 * Constant for {@link #importanceReasonCode}: one of the application's 3092 * content providers is being used by another process. The pid of 3093 * the client process is in {@link #importanceReasonPid} and the 3094 * target provider in this process is in 3095 * {@link #importanceReasonComponent}. 3096 */ 3097 public static final int REASON_SERVICE_IN_USE = 2; 3098 3099 /** 3100 * The reason for {@link #importance}, if any. 3101 */ 3102 public int importanceReasonCode; 3103 3104 /** 3105 * For the specified values of {@link #importanceReasonCode}, this 3106 * is the process ID of the other process that is a client of this 3107 * process. This will be 0 if no other process is using this one. 3108 */ 3109 public int importanceReasonPid; 3110 3111 /** 3112 * For the specified values of {@link #importanceReasonCode}, this 3113 * is the name of the component that is being used in this process. 3114 */ 3115 public ComponentName importanceReasonComponent; 3116 3117 /** 3118 * When {@link #importanceReasonPid} is non-0, this is the importance 3119 * of the other pid. @hide 3120 */ 3121 public int importanceReasonImportance; 3122 3123 /** 3124 * Current process state, as per PROCESS_STATE_* constants. 3125 * @hide 3126 */ 3127 public int processState; 3128 3129 public RunningAppProcessInfo() { 3130 importance = IMPORTANCE_FOREGROUND; 3131 importanceReasonCode = REASON_UNKNOWN; 3132 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3133 } 3134 3135 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3136 processName = pProcessName; 3137 pid = pPid; 3138 pkgList = pArr; 3139 } 3140 3141 public int describeContents() { 3142 return 0; 3143 } 3144 3145 public void writeToParcel(Parcel dest, int flags) { 3146 dest.writeString(processName); 3147 dest.writeInt(pid); 3148 dest.writeInt(uid); 3149 dest.writeStringArray(pkgList); 3150 dest.writeInt(this.flags); 3151 dest.writeInt(lastTrimLevel); 3152 dest.writeInt(importance); 3153 dest.writeInt(lru); 3154 dest.writeInt(importanceReasonCode); 3155 dest.writeInt(importanceReasonPid); 3156 ComponentName.writeToParcel(importanceReasonComponent, dest); 3157 dest.writeInt(importanceReasonImportance); 3158 dest.writeInt(processState); 3159 } 3160 3161 public void readFromParcel(Parcel source) { 3162 processName = source.readString(); 3163 pid = source.readInt(); 3164 uid = source.readInt(); 3165 pkgList = source.readStringArray(); 3166 flags = source.readInt(); 3167 lastTrimLevel = source.readInt(); 3168 importance = source.readInt(); 3169 lru = source.readInt(); 3170 importanceReasonCode = source.readInt(); 3171 importanceReasonPid = source.readInt(); 3172 importanceReasonComponent = ComponentName.readFromParcel(source); 3173 importanceReasonImportance = source.readInt(); 3174 processState = source.readInt(); 3175 } 3176 3177 public static final Creator<RunningAppProcessInfo> CREATOR = 3178 new Creator<RunningAppProcessInfo>() { 3179 public RunningAppProcessInfo createFromParcel(Parcel source) { 3180 return new RunningAppProcessInfo(source); 3181 } 3182 public RunningAppProcessInfo[] newArray(int size) { 3183 return new RunningAppProcessInfo[size]; 3184 } 3185 }; 3186 3187 private RunningAppProcessInfo(Parcel source) { 3188 readFromParcel(source); 3189 } 3190 } 3191 3192 /** 3193 * Returns a list of application processes installed on external media 3194 * that are running on the device. 3195 * 3196 * <p><b>Note: this method is only intended for debugging or building 3197 * a user-facing process management UI.</b></p> 3198 * 3199 * @return Returns a list of ApplicationInfo records, or null if none 3200 * This list ordering is not specified. 3201 * @hide 3202 */ 3203 public List<ApplicationInfo> getRunningExternalApplications() { 3204 try { 3205 return getService().getRunningExternalApplications(); 3206 } catch (RemoteException e) { 3207 throw e.rethrowFromSystemServer(); 3208 } 3209 } 3210 3211 /** 3212 * Sets the memory trim mode for a process and schedules a memory trim operation. 3213 * 3214 * <p><b>Note: this method is only intended for testing framework.</b></p> 3215 * 3216 * @return Returns true if successful. 3217 * @hide 3218 */ 3219 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3220 try { 3221 return getService().setProcessMemoryTrimLevel(process, userId, 3222 level); 3223 } catch (RemoteException e) { 3224 throw e.rethrowFromSystemServer(); 3225 } 3226 } 3227 3228 /** 3229 * Returns a list of application processes that are running on the device. 3230 * 3231 * <p><b>Note: this method is only intended for debugging or building 3232 * a user-facing process management UI.</b></p> 3233 * 3234 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3235 * running processes (it will not return an empty list). This list ordering is not 3236 * specified. 3237 */ 3238 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3239 try { 3240 return getService().getRunningAppProcesses(); 3241 } catch (RemoteException e) { 3242 throw e.rethrowFromSystemServer(); 3243 } 3244 } 3245 3246 /** 3247 * Return the importance of a given package name, based on the processes that are 3248 * currently running. The return value is one of the importance constants defined 3249 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3250 * processes that this package has code running inside of. If there are no processes 3251 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3252 * @hide 3253 */ 3254 @SystemApi @TestApi 3255 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3256 public int getPackageImportance(String packageName) { 3257 try { 3258 int procState = getService().getPackageProcessState(packageName, 3259 mContext.getOpPackageName()); 3260 return RunningAppProcessInfo.procStateToImportance(procState); 3261 } catch (RemoteException e) { 3262 throw e.rethrowFromSystemServer(); 3263 } 3264 } 3265 3266 /** 3267 * Callback to get reports about changes to the importance of a uid. Use with 3268 * {@link #addOnUidImportanceListener}. 3269 * @hide 3270 */ 3271 @SystemApi @TestApi 3272 public interface OnUidImportanceListener { 3273 /** 3274 * The importance if a given uid has changed. Will be one of the importance 3275 * values in {@link RunningAppProcessInfo}; 3276 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3277 * when the uid is no longer running at all. This callback will happen on a thread 3278 * from a thread pool, not the main UI thread. 3279 * @param uid The uid whose importance has changed. 3280 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3281 */ 3282 void onUidImportance(int uid, int importance); 3283 } 3284 3285 /** 3286 * Start monitoring changes to the imoportance of uids running in the system. 3287 * @param listener The listener callback that will receive change reports. 3288 * @param importanceCutpoint The level of importance in which the caller is interested 3289 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3290 * is used here, you will receive a call each time a uids importance transitions between 3291 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3292 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3293 * 3294 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3295 * permission to use this feature.</p> 3296 * 3297 * @throws IllegalArgumentException If the listener is already registered. 3298 * @throws SecurityException If the caller does not hold 3299 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3300 * @hide 3301 */ 3302 @SystemApi @TestApi 3303 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3304 int importanceCutpoint) { 3305 synchronized (this) { 3306 if (mImportanceListeners.containsKey(listener)) { 3307 throw new IllegalArgumentException("Listener already registered: " + listener); 3308 } 3309 // TODO: implement the cut point in the system process to avoid IPCs. 3310 UidObserver observer = new UidObserver(listener); 3311 try { 3312 getService().registerUidObserver(observer, 3313 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3314 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3315 mContext.getOpPackageName()); 3316 } catch (RemoteException e) { 3317 throw e.rethrowFromSystemServer(); 3318 } 3319 mImportanceListeners.put(listener, observer); 3320 } 3321 } 3322 3323 /** 3324 * Remove an importance listener that was previously registered with 3325 * {@link #addOnUidImportanceListener}. 3326 * 3327 * @throws IllegalArgumentException If the listener is not registered. 3328 * @hide 3329 */ 3330 @SystemApi @TestApi 3331 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3332 synchronized (this) { 3333 UidObserver observer = mImportanceListeners.remove(listener); 3334 if (observer == null) { 3335 throw new IllegalArgumentException("Listener not registered: " + listener); 3336 } 3337 try { 3338 getService().unregisterUidObserver(observer); 3339 } catch (RemoteException e) { 3340 throw e.rethrowFromSystemServer(); 3341 } 3342 } 3343 } 3344 3345 /** 3346 * Return global memory state information for the calling process. This 3347 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3348 * only fields that will be filled in are 3349 * {@link RunningAppProcessInfo#pid}, 3350 * {@link RunningAppProcessInfo#uid}, 3351 * {@link RunningAppProcessInfo#lastTrimLevel}, 3352 * {@link RunningAppProcessInfo#importance}, 3353 * {@link RunningAppProcessInfo#lru}, and 3354 * {@link RunningAppProcessInfo#importanceReasonCode}. 3355 */ 3356 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3357 try { 3358 getService().getMyMemoryState(outState); 3359 } catch (RemoteException e) { 3360 throw e.rethrowFromSystemServer(); 3361 } 3362 } 3363 3364 /** 3365 * Return information about the memory usage of one or more processes. 3366 * 3367 * <p><b>Note: this method is only intended for debugging or building 3368 * a user-facing process management UI.</b></p> 3369 * 3370 * @param pids The pids of the processes whose memory usage is to be 3371 * retrieved. 3372 * @return Returns an array of memory information, one for each 3373 * requested pid. 3374 */ 3375 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3376 try { 3377 return getService().getProcessMemoryInfo(pids); 3378 } catch (RemoteException e) { 3379 throw e.rethrowFromSystemServer(); 3380 } 3381 } 3382 3383 /** 3384 * @deprecated This is now just a wrapper for 3385 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3386 * is no longer available to applications because it allows them to 3387 * break other applications by removing their alarms, stopping their 3388 * services, etc. 3389 */ 3390 @Deprecated 3391 public void restartPackage(String packageName) { 3392 killBackgroundProcesses(packageName); 3393 } 3394 3395 /** 3396 * Have the system immediately kill all background processes associated 3397 * with the given package. This is the same as the kernel killing those 3398 * processes to reclaim memory; the system will take care of restarting 3399 * these processes in the future as needed. 3400 * 3401 * <p>You must hold the permission 3402 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3403 * call this method. 3404 * 3405 * @param packageName The name of the package whose processes are to 3406 * be killed. 3407 */ 3408 public void killBackgroundProcesses(String packageName) { 3409 try { 3410 getService().killBackgroundProcesses(packageName, 3411 UserHandle.myUserId()); 3412 } catch (RemoteException e) { 3413 throw e.rethrowFromSystemServer(); 3414 } 3415 } 3416 3417 /** 3418 * Kills the specified UID. 3419 * @param uid The UID to kill. 3420 * @param reason The reason for the kill. 3421 * 3422 * @hide 3423 */ 3424 @SystemApi 3425 @RequiresPermission(Manifest.permission.KILL_UID) 3426 public void killUid(int uid, String reason) { 3427 try { 3428 getService().killUid(UserHandle.getAppId(uid), 3429 UserHandle.getUserId(uid), reason); 3430 } catch (RemoteException e) { 3431 throw e.rethrowFromSystemServer(); 3432 } 3433 } 3434 3435 /** 3436 * Have the system perform a force stop of everything associated with 3437 * the given application package. All processes that share its uid 3438 * will be killed, all services it has running stopped, all activities 3439 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3440 * broadcast will be sent, so that any of its registered alarms can 3441 * be stopped, notifications removed, etc. 3442 * 3443 * <p>You must hold the permission 3444 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3445 * call this method. 3446 * 3447 * @param packageName The name of the package to be stopped. 3448 * @param userId The user for which the running package is to be stopped. 3449 * 3450 * @hide This is not available to third party applications due to 3451 * it allowing them to break other applications by stopping their 3452 * services, removing their alarms, etc. 3453 */ 3454 public void forceStopPackageAsUser(String packageName, int userId) { 3455 try { 3456 getService().forceStopPackage(packageName, userId); 3457 } catch (RemoteException e) { 3458 throw e.rethrowFromSystemServer(); 3459 } 3460 } 3461 3462 /** 3463 * @see #forceStopPackageAsUser(String, int) 3464 * @hide 3465 */ 3466 @SystemApi 3467 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3468 public void forceStopPackage(String packageName) { 3469 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3470 } 3471 3472 /** 3473 * Get the device configuration attributes. 3474 */ 3475 public ConfigurationInfo getDeviceConfigurationInfo() { 3476 try { 3477 return getService().getDeviceConfigurationInfo(); 3478 } catch (RemoteException e) { 3479 throw e.rethrowFromSystemServer(); 3480 } 3481 } 3482 3483 /** 3484 * Get the preferred density of icons for the launcher. This is used when 3485 * custom drawables are created (e.g., for shortcuts). 3486 * 3487 * @return density in terms of DPI 3488 */ 3489 public int getLauncherLargeIconDensity() { 3490 final Resources res = mContext.getResources(); 3491 final int density = res.getDisplayMetrics().densityDpi; 3492 final int sw = res.getConfiguration().smallestScreenWidthDp; 3493 3494 if (sw < 600) { 3495 // Smaller than approx 7" tablets, use the regular icon size. 3496 return density; 3497 } 3498 3499 switch (density) { 3500 case DisplayMetrics.DENSITY_LOW: 3501 return DisplayMetrics.DENSITY_MEDIUM; 3502 case DisplayMetrics.DENSITY_MEDIUM: 3503 return DisplayMetrics.DENSITY_HIGH; 3504 case DisplayMetrics.DENSITY_TV: 3505 return DisplayMetrics.DENSITY_XHIGH; 3506 case DisplayMetrics.DENSITY_HIGH: 3507 return DisplayMetrics.DENSITY_XHIGH; 3508 case DisplayMetrics.DENSITY_XHIGH: 3509 return DisplayMetrics.DENSITY_XXHIGH; 3510 case DisplayMetrics.DENSITY_XXHIGH: 3511 return DisplayMetrics.DENSITY_XHIGH * 2; 3512 default: 3513 // The density is some abnormal value. Return some other 3514 // abnormal value that is a reasonable scaling of it. 3515 return (int)((density*1.5f)+.5f); 3516 } 3517 } 3518 3519 /** 3520 * Get the preferred launcher icon size. This is used when custom drawables 3521 * are created (e.g., for shortcuts). 3522 * 3523 * @return dimensions of square icons in terms of pixels 3524 */ 3525 public int getLauncherLargeIconSize() { 3526 return getLauncherLargeIconSizeInner(mContext); 3527 } 3528 3529 static int getLauncherLargeIconSizeInner(Context context) { 3530 final Resources res = context.getResources(); 3531 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3532 final int sw = res.getConfiguration().smallestScreenWidthDp; 3533 3534 if (sw < 600) { 3535 // Smaller than approx 7" tablets, use the regular icon size. 3536 return size; 3537 } 3538 3539 final int density = res.getDisplayMetrics().densityDpi; 3540 3541 switch (density) { 3542 case DisplayMetrics.DENSITY_LOW: 3543 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3544 case DisplayMetrics.DENSITY_MEDIUM: 3545 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3546 case DisplayMetrics.DENSITY_TV: 3547 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3548 case DisplayMetrics.DENSITY_HIGH: 3549 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3550 case DisplayMetrics.DENSITY_XHIGH: 3551 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3552 case DisplayMetrics.DENSITY_XXHIGH: 3553 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3554 default: 3555 // The density is some abnormal value. Return some other 3556 // abnormal value that is a reasonable scaling of it. 3557 return (int)((size*1.5f) + .5f); 3558 } 3559 } 3560 3561 /** 3562 * Returns "true" if the user interface is currently being messed with 3563 * by a monkey. 3564 */ 3565 public static boolean isUserAMonkey() { 3566 try { 3567 return getService().isUserAMonkey(); 3568 } catch (RemoteException e) { 3569 throw e.rethrowFromSystemServer(); 3570 } 3571 } 3572 3573 /** 3574 * Returns "true" if device is running in a test harness. 3575 */ 3576 public static boolean isRunningInTestHarness() { 3577 return SystemProperties.getBoolean("ro.test_harness", false); 3578 } 3579 3580 /** 3581 * Returns the launch count of each installed package. 3582 * 3583 * @hide 3584 */ 3585 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3586 try { 3587 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3588 ServiceManager.getService("usagestats")); 3589 if (usageStatsService == null) { 3590 return new HashMap<String, Integer>(); 3591 } 3592 3593 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3594 ActivityThread.currentPackageName()); 3595 if (allPkgUsageStats == null) { 3596 return new HashMap<String, Integer>(); 3597 } 3598 3599 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3600 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3601 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3602 } 3603 3604 return launchCounts; 3605 } catch (RemoteException e) { 3606 Log.w(TAG, "Could not query launch counts", e); 3607 return new HashMap<String, Integer>(); 3608 } 3609 }*/ 3610 3611 /** @hide */ 3612 public static int checkComponentPermission(String permission, int uid, 3613 int owningUid, boolean exported) { 3614 // Root, system server get to do everything. 3615 final int appId = UserHandle.getAppId(uid); 3616 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3617 return PackageManager.PERMISSION_GRANTED; 3618 } 3619 // Isolated processes don't get any permissions. 3620 if (UserHandle.isIsolated(uid)) { 3621 return PackageManager.PERMISSION_DENIED; 3622 } 3623 // If there is a uid that owns whatever is being accessed, it has 3624 // blanket access to it regardless of the permissions it requires. 3625 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3626 return PackageManager.PERMISSION_GRANTED; 3627 } 3628 // If the target is not exported, then nobody else can get to it. 3629 if (!exported) { 3630 /* 3631 RuntimeException here = new RuntimeException("here"); 3632 here.fillInStackTrace(); 3633 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3634 here); 3635 */ 3636 return PackageManager.PERMISSION_DENIED; 3637 } 3638 if (permission == null) { 3639 return PackageManager.PERMISSION_GRANTED; 3640 } 3641 try { 3642 return AppGlobals.getPackageManager() 3643 .checkUidPermission(permission, uid); 3644 } catch (RemoteException e) { 3645 throw e.rethrowFromSystemServer(); 3646 } 3647 } 3648 3649 /** @hide */ 3650 public static int checkUidPermission(String permission, int uid) { 3651 try { 3652 return AppGlobals.getPackageManager() 3653 .checkUidPermission(permission, uid); 3654 } catch (RemoteException e) { 3655 throw e.rethrowFromSystemServer(); 3656 } 3657 } 3658 3659 /** 3660 * @hide 3661 * Helper for dealing with incoming user arguments to system service calls. 3662 * Takes care of checking permissions and converting USER_CURRENT to the 3663 * actual current user. 3664 * 3665 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3666 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3667 * @param userId The user id argument supplied by the caller -- this is the user 3668 * they want to run as. 3669 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3670 * to get a USER_ALL returned and deal with it correctly. If false, 3671 * an exception will be thrown if USER_ALL is supplied. 3672 * @param requireFull If true, the caller must hold 3673 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3674 * different user than their current process; otherwise they must hold 3675 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3676 * @param name Optional textual name of the incoming call; only for generating error messages. 3677 * @param callerPackage Optional package name of caller; only for error messages. 3678 * 3679 * @return Returns the user ID that the call should run as. Will always be a concrete 3680 * user number, unless <var>allowAll</var> is true in which case it could also be 3681 * USER_ALL. 3682 */ 3683 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3684 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3685 if (UserHandle.getUserId(callingUid) == userId) { 3686 return userId; 3687 } 3688 try { 3689 return getService().handleIncomingUser(callingPid, 3690 callingUid, userId, allowAll, requireFull, name, callerPackage); 3691 } catch (RemoteException e) { 3692 throw e.rethrowFromSystemServer(); 3693 } 3694 } 3695 3696 /** 3697 * Gets the userId of the current foreground user. Requires system permissions. 3698 * @hide 3699 */ 3700 @SystemApi 3701 public static int getCurrentUser() { 3702 UserInfo ui; 3703 try { 3704 ui = getService().getCurrentUser(); 3705 return ui != null ? ui.id : 0; 3706 } catch (RemoteException e) { 3707 throw e.rethrowFromSystemServer(); 3708 } 3709 } 3710 3711 /** 3712 * @param userid the user's id. Zero indicates the default user. 3713 * @hide 3714 */ 3715 public boolean switchUser(int userid) { 3716 try { 3717 return getService().switchUser(userid); 3718 } catch (RemoteException e) { 3719 throw e.rethrowFromSystemServer(); 3720 } 3721 } 3722 3723 /** 3724 * Logs out current current foreground user by switching to the system user and stopping the 3725 * user being switched from. 3726 * @hide 3727 */ 3728 public static void logoutCurrentUser() { 3729 int currentUser = ActivityManager.getCurrentUser(); 3730 if (currentUser != UserHandle.USER_SYSTEM) { 3731 try { 3732 getService().switchUser(UserHandle.USER_SYSTEM); 3733 getService().stopUser(currentUser, /* force= */ false, null); 3734 } catch (RemoteException e) { 3735 e.rethrowFromSystemServer(); 3736 } 3737 } 3738 } 3739 3740 /** {@hide} */ 3741 public static final int FLAG_OR_STOPPED = 1 << 0; 3742 /** {@hide} */ 3743 public static final int FLAG_AND_LOCKED = 1 << 1; 3744 /** {@hide} */ 3745 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3746 /** {@hide} */ 3747 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3748 3749 /** 3750 * Return whether the given user is actively running. This means that 3751 * the user is in the "started" state, not "stopped" -- it is currently 3752 * allowed to run code through scheduled alarms, receiving broadcasts, 3753 * etc. A started user may be either the current foreground user or a 3754 * background user; the result here does not distinguish between the two. 3755 * @param userId the user's id. Zero indicates the default user. 3756 * @hide 3757 */ 3758 public boolean isUserRunning(int userId) { 3759 try { 3760 return getService().isUserRunning(userId, 0); 3761 } catch (RemoteException e) { 3762 throw e.rethrowFromSystemServer(); 3763 } 3764 } 3765 3766 /** {@hide} */ 3767 public boolean isVrModePackageEnabled(ComponentName component) { 3768 try { 3769 return getService().isVrModePackageEnabled(component); 3770 } catch (RemoteException e) { 3771 throw e.rethrowFromSystemServer(); 3772 } 3773 } 3774 3775 /** 3776 * Perform a system dump of various state associated with the given application 3777 * package name. This call blocks while the dump is being performed, so should 3778 * not be done on a UI thread. The data will be written to the given file 3779 * descriptor as text. An application must hold the 3780 * {@link android.Manifest.permission#DUMP} permission to make this call. 3781 * @param fd The file descriptor that the dump should be written to. The file 3782 * descriptor is <em>not</em> closed by this function; the caller continues to 3783 * own it. 3784 * @param packageName The name of the package that is to be dumped. 3785 */ 3786 public void dumpPackageState(FileDescriptor fd, String packageName) { 3787 dumpPackageStateStatic(fd, packageName); 3788 } 3789 3790 /** 3791 * @hide 3792 */ 3793 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3794 FileOutputStream fout = new FileOutputStream(fd); 3795 PrintWriter pw = new FastPrintWriter(fout); 3796 dumpService(pw, fd, "package", new String[] { packageName }); 3797 pw.println(); 3798 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3799 "-a", "package", packageName }); 3800 pw.println(); 3801 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3802 pw.println(); 3803 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3804 pw.println(); 3805 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3806 pw.println(); 3807 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3808 pw.flush(); 3809 } 3810 3811 /** 3812 * @hide 3813 */ 3814 public static boolean isSystemReady() { 3815 if (!sSystemReady) { 3816 if (ActivityThread.isSystem()) { 3817 sSystemReady = 3818 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3819 } else { 3820 // Since this is being called from outside system server, system should be 3821 // ready by now. 3822 sSystemReady = true; 3823 } 3824 } 3825 return sSystemReady; 3826 } 3827 3828 /** 3829 * @hide 3830 */ 3831 public static void broadcastStickyIntent(Intent intent, int userId) { 3832 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3833 } 3834 3835 /** 3836 * Convenience for sending a sticky broadcast. For internal use only. 3837 * 3838 * @hide 3839 */ 3840 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3841 try { 3842 getService().broadcastIntent( 3843 null, intent, null, null, Activity.RESULT_OK, null, null, 3844 null /*permission*/, appOp, null, false, true, userId); 3845 } catch (RemoteException ex) { 3846 } 3847 } 3848 3849 /** 3850 * @hide 3851 */ 3852 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3853 String tag) { 3854 try { 3855 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3856 sourceUid, sourcePkg, tag); 3857 } catch (RemoteException ex) { 3858 } 3859 } 3860 3861 /** 3862 * @hide 3863 */ 3864 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3865 try { 3866 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3867 } catch (RemoteException ex) { 3868 } 3869 } 3870 3871 /** 3872 * @hide 3873 */ 3874 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3875 try { 3876 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3877 } catch (RemoteException ex) { 3878 } 3879 } 3880 3881 /** 3882 * @hide 3883 */ 3884 public static IActivityManager getService() { 3885 return IActivityManagerSingleton.get(); 3886 } 3887 3888 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3889 new Singleton<IActivityManager>() { 3890 @Override 3891 protected IActivityManager create() { 3892 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3893 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3894 return am; 3895 } 3896 }; 3897 3898 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3899 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3900 IBinder service = ServiceManager.checkService(name); 3901 if (service == null) { 3902 pw.println(" (Service not found)"); 3903 return; 3904 } 3905 TransferPipe tp = null; 3906 try { 3907 pw.flush(); 3908 tp = new TransferPipe(); 3909 tp.setBufferPrefix(" "); 3910 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3911 tp.go(fd, 10000); 3912 } catch (Throwable e) { 3913 if (tp != null) { 3914 tp.kill(); 3915 } 3916 pw.println("Failure dumping service:"); 3917 e.printStackTrace(pw); 3918 } 3919 } 3920 3921 /** 3922 * Request that the system start watching for the calling process to exceed a pss 3923 * size as given here. Once called, the system will look for any occasions where it 3924 * sees the associated process with a larger pss size and, when this happens, automatically 3925 * pull a heap dump from it and allow the user to share the data. Note that this request 3926 * continues running even if the process is killed and restarted. To remove the watch, 3927 * use {@link #clearWatchHeapLimit()}. 3928 * 3929 * <p>This API only work if the calling process has been marked as 3930 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3931 * (userdebug or eng) build.</p> 3932 * 3933 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3934 * handle heap limit reports themselves.</p> 3935 * 3936 * @param pssSize The size in bytes to set the limit at. 3937 */ 3938 public void setWatchHeapLimit(long pssSize) { 3939 try { 3940 getService().setDumpHeapDebugLimit(null, 0, pssSize, 3941 mContext.getPackageName()); 3942 } catch (RemoteException e) { 3943 throw e.rethrowFromSystemServer(); 3944 } 3945 } 3946 3947 /** 3948 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3949 * If your package has an activity handling this action, it will be launched with the 3950 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3951 * match the activty must support this action and a MIME type of "*/*". 3952 */ 3953 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3954 3955 /** 3956 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3957 */ 3958 public void clearWatchHeapLimit() { 3959 try { 3960 getService().setDumpHeapDebugLimit(null, 0, 0, null); 3961 } catch (RemoteException e) { 3962 throw e.rethrowFromSystemServer(); 3963 } 3964 } 3965 3966 /** 3967 * @hide 3968 */ 3969 public void startLockTaskMode(int taskId) { 3970 try { 3971 getService().startLockTaskModeById(taskId); 3972 } catch (RemoteException e) { 3973 throw e.rethrowFromSystemServer(); 3974 } 3975 } 3976 3977 /** 3978 * @hide 3979 */ 3980 public void stopLockTaskMode() { 3981 try { 3982 getService().stopLockTaskMode(); 3983 } catch (RemoteException e) { 3984 throw e.rethrowFromSystemServer(); 3985 } 3986 } 3987 3988 /** 3989 * Return whether currently in lock task mode. When in this mode 3990 * no new tasks can be created or switched to. 3991 * 3992 * @see Activity#startLockTask() 3993 * 3994 * @deprecated Use {@link #getLockTaskModeState} instead. 3995 */ 3996 @Deprecated 3997 public boolean isInLockTaskMode() { 3998 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3999 } 4000 4001 /** 4002 * Return the current state of task locking. The three possible outcomes 4003 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4004 * and {@link #LOCK_TASK_MODE_PINNED}. 4005 * 4006 * @see Activity#startLockTask() 4007 */ 4008 public int getLockTaskModeState() { 4009 try { 4010 return getService().getLockTaskModeState(); 4011 } catch (RemoteException e) { 4012 throw e.rethrowFromSystemServer(); 4013 } 4014 } 4015 4016 /** 4017 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4018 * thread can be a VR thread in a process at a time, and that thread may be subject to 4019 * restrictions on the amount of time it can run. 4020 * 4021 * To reset the VR thread for an application, a tid of 0 can be passed. 4022 * 4023 * @see android.os.Process#myTid() 4024 * @param tid tid of the VR thread 4025 */ 4026 public static void setVrThread(int tid) { 4027 try { 4028 getService().setVrThread(tid); 4029 } catch (RemoteException e) { 4030 // pass 4031 } 4032 } 4033 4034 /** 4035 * The AppTask allows you to manage your own application's tasks. 4036 * See {@link android.app.ActivityManager#getAppTasks()} 4037 */ 4038 public static class AppTask { 4039 private IAppTask mAppTaskImpl; 4040 4041 /** @hide */ 4042 public AppTask(IAppTask task) { 4043 mAppTaskImpl = task; 4044 } 4045 4046 /** 4047 * Finishes all activities in this task and removes it from the recent tasks list. 4048 */ 4049 public void finishAndRemoveTask() { 4050 try { 4051 mAppTaskImpl.finishAndRemoveTask(); 4052 } catch (RemoteException e) { 4053 throw e.rethrowFromSystemServer(); 4054 } 4055 } 4056 4057 /** 4058 * Get the RecentTaskInfo associated with this task. 4059 * 4060 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4061 */ 4062 public RecentTaskInfo getTaskInfo() { 4063 try { 4064 return mAppTaskImpl.getTaskInfo(); 4065 } catch (RemoteException e) { 4066 throw e.rethrowFromSystemServer(); 4067 } 4068 } 4069 4070 /** 4071 * Bring this task to the foreground. If it contains activities, they will be 4072 * brought to the foreground with it and their instances re-created if needed. 4073 * If it doesn't contain activities, the root activity of the task will be 4074 * re-launched. 4075 */ 4076 public void moveToFront() { 4077 try { 4078 mAppTaskImpl.moveToFront(); 4079 } catch (RemoteException e) { 4080 throw e.rethrowFromSystemServer(); 4081 } 4082 } 4083 4084 /** 4085 * Start an activity in this task. Brings the task to the foreground. If this task 4086 * is not currently active (that is, its id < 0), then a new activity for the given 4087 * Intent will be launched as the root of the task and the task brought to the 4088 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4089 * an activity to launch in a new task, then a new activity for the given Intent will 4090 * be launched on top of the task and the task brought to the foreground. If this 4091 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4092 * or would otherwise be launched in to a new task, then the activity not launched but 4093 * this task be brought to the foreground and a new intent delivered to the top 4094 * activity if appropriate. 4095 * 4096 * <p>In other words, you generally want to use an Intent here that does not specify 4097 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4098 * and let the system do the right thing.</p> 4099 * 4100 * @param intent The Intent describing the new activity to be launched on the task. 4101 * @param options Optional launch options. 4102 * 4103 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4104 */ 4105 public void startActivity(Context context, Intent intent, Bundle options) { 4106 ActivityThread thread = ActivityThread.currentActivityThread(); 4107 thread.getInstrumentation().execStartActivityFromAppTask(context, 4108 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4109 } 4110 4111 /** 4112 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4113 * Intent of this AppTask. 4114 * 4115 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4116 * be set; otherwise, it will be cleared. 4117 */ 4118 public void setExcludeFromRecents(boolean exclude) { 4119 try { 4120 mAppTaskImpl.setExcludeFromRecents(exclude); 4121 } catch (RemoteException e) { 4122 throw e.rethrowFromSystemServer(); 4123 } 4124 } 4125 } 4126} 4127