ActivityManager.java revision ca1bd4b541958037dd63b3a27ecf912b64c2254f
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.Build; 34import android.os.IBinder; 35import android.os.ParcelFileDescriptor; 36 37import com.android.internal.app.procstats.ProcessStats; 38import com.android.internal.os.RoSystemProperties; 39import com.android.internal.os.TransferPipe; 40import com.android.internal.util.FastPrintWriter; 41import com.android.server.LocalServices; 42 43import android.content.ComponentName; 44import android.content.Context; 45import android.content.Intent; 46import android.content.UriPermission; 47import android.content.pm.ApplicationInfo; 48import android.content.pm.ConfigurationInfo; 49import android.content.pm.IPackageDataObserver; 50import android.content.pm.PackageManager; 51import android.content.pm.ParceledListSlice; 52import android.content.pm.UserInfo; 53import android.content.res.Resources; 54import android.graphics.Bitmap; 55import android.graphics.Color; 56import android.graphics.Rect; 57import android.os.Bundle; 58import android.os.Debug; 59import android.os.Handler; 60import android.os.Parcel; 61import android.os.Parcelable; 62import android.os.Process; 63import android.os.RemoteException; 64import android.os.ServiceManager; 65import android.os.SystemProperties; 66import android.os.UserHandle; 67import android.text.TextUtils; 68import android.util.ArrayMap; 69import android.util.DisplayMetrics; 70import android.util.Singleton; 71import android.util.Size; 72 73import org.xmlpull.v1.XmlSerializer; 74 75import java.io.FileDescriptor; 76import java.io.FileOutputStream; 77import java.io.IOException; 78import java.io.PrintWriter; 79import java.lang.annotation.Retention; 80import java.lang.annotation.RetentionPolicy; 81import java.util.ArrayList; 82import java.util.List; 83 84/** 85 * <p> 86 * This class gives information about, and interacts 87 * with, activities, services, and the containing 88 * process. 89 * </p> 90 * 91 * <p> 92 * A number of the methods in this class are for 93 * debugging or informational purposes and they should 94 * not be used to affect any runtime behavior of 95 * your app. These methods are called out as such in 96 * the method level documentation. 97 * </p> 98 * 99 *<p> 100 * Most application developers should not have the need to 101 * use this class, most of whose methods are for specialized 102 * use cases. However, a few methods are more broadly applicable. 103 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 104 * enables your app to detect whether it is running on a low-memory device, 105 * and behave accordingly. 106 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 107 * is for apps with reset-data functionality. 108 * </p> 109 * 110 * <p> 111 * In some special use cases, where an app interacts with 112 * its Task stack, the app may use the 113 * {@link android.app.ActivityManager.AppTask} and 114 * {@link android.app.ActivityManager.RecentTaskInfo} inner 115 * classes. However, in general, the methods in this class should 116 * be used for testing and debugging purposes only. 117 * </p> 118 */ 119public class ActivityManager { 120 private static String TAG = "ActivityManager"; 121 122 private static int gMaxRecentTasks = -1; 123 124 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 125 126 private final Context mContext; 127 128 private static volatile boolean sSystemReady = false; 129 130 /** 131 * System property to enable task snapshots. 132 * @hide 133 */ 134 public final static boolean ENABLE_TASK_SNAPSHOTS; 135 136 static { 137 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 138 } 139 140 static final class UidObserver extends IUidObserver.Stub { 141 final OnUidImportanceListener mListener; 142 143 UidObserver(OnUidImportanceListener listener) { 144 mListener = listener; 145 } 146 147 @Override 148 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 149 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 150 } 151 152 @Override 153 public void onUidGone(int uid, boolean disabled) { 154 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 155 } 156 157 @Override 158 public void onUidActive(int uid) { 159 } 160 161 @Override 162 public void onUidIdle(int uid, boolean disabled) { 163 } 164 } 165 166 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 167 168 /** 169 * Defines acceptable types of bugreports. 170 * @hide 171 */ 172 @Retention(RetentionPolicy.SOURCE) 173 @IntDef({ 174 BUGREPORT_OPTION_FULL, 175 BUGREPORT_OPTION_INTERACTIVE, 176 BUGREPORT_OPTION_REMOTE, 177 BUGREPORT_OPTION_WEAR, 178 BUGREPORT_OPTION_TELEPHONY 179 }) 180 public @interface BugreportMode {} 181 /** 182 * Takes a bugreport without user interference (and hence causing less 183 * interference to the system), but includes all sections. 184 * @hide 185 */ 186 public static final int BUGREPORT_OPTION_FULL = 0; 187 /** 188 * Allows user to monitor progress and enter additional data; might not include all 189 * sections. 190 * @hide 191 */ 192 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 193 /** 194 * Takes a bugreport requested remotely by administrator of the Device Owner app, 195 * not the device's user. 196 * @hide 197 */ 198 public static final int BUGREPORT_OPTION_REMOTE = 2; 199 /** 200 * Takes a bugreport on a wearable device. 201 * @hide 202 */ 203 public static final int BUGREPORT_OPTION_WEAR = 3; 204 205 /** 206 * Takes a lightweight version of bugreport that only includes a few, urgent sections 207 * used to report telephony bugs. 208 * @hide 209 */ 210 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 211 212 /** 213 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 214 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 215 * uninstalled in lieu of the declaring one. The package named here must be 216 * signed with the same certificate as the one declaring the {@code <meta-data>}. 217 */ 218 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 219 220 /** 221 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 222 * @hide 223 */ 224 public static final int START_VOICE_HIDDEN_SESSION = -10; 225 226 /** 227 * Result for IActivityManager.startVoiceActivity: active session does not match 228 * the requesting token. 229 * @hide 230 */ 231 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 232 233 /** 234 * Result for IActivityManager.startActivity: trying to start a background user 235 * activity that shouldn't be displayed for all users. 236 * @hide 237 */ 238 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 239 240 /** 241 * Result for IActivityManager.startActivity: trying to start an activity under voice 242 * control when that activity does not support the VOICE category. 243 * @hide 244 */ 245 public static final int START_NOT_VOICE_COMPATIBLE = -7; 246 247 /** 248 * Result for IActivityManager.startActivity: an error where the 249 * start had to be canceled. 250 * @hide 251 */ 252 public static final int START_CANCELED = -6; 253 254 /** 255 * Result for IActivityManager.startActivity: an error where the 256 * thing being started is not an activity. 257 * @hide 258 */ 259 public static final int START_NOT_ACTIVITY = -5; 260 261 /** 262 * Result for IActivityManager.startActivity: an error where the 263 * caller does not have permission to start the activity. 264 * @hide 265 */ 266 public static final int START_PERMISSION_DENIED = -4; 267 268 /** 269 * Result for IActivityManager.startActivity: an error where the 270 * caller has requested both to forward a result and to receive 271 * a result. 272 * @hide 273 */ 274 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 275 276 /** 277 * Result for IActivityManager.startActivity: an error where the 278 * requested class is not found. 279 * @hide 280 */ 281 public static final int START_CLASS_NOT_FOUND = -2; 282 283 /** 284 * Result for IActivityManager.startActivity: an error where the 285 * given Intent could not be resolved to an activity. 286 * @hide 287 */ 288 public static final int START_INTENT_NOT_RESOLVED = -1; 289 290 /** 291 * Result for IActivityManaqer.startActivity: the activity was started 292 * successfully as normal. 293 * @hide 294 */ 295 public static final int START_SUCCESS = 0; 296 297 /** 298 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 299 * be executed if it is the recipient, and that is indeed the case. 300 * @hide 301 */ 302 public static final int START_RETURN_INTENT_TO_CALLER = 1; 303 304 /** 305 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 306 * a task was simply brought to the foreground. 307 * @hide 308 */ 309 public static final int START_TASK_TO_FRONT = 2; 310 311 /** 312 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 313 * the given Intent was given to the existing top activity. 314 * @hide 315 */ 316 public static final int START_DELIVERED_TO_TOP = 3; 317 318 /** 319 * Result for IActivityManaqer.startActivity: request was canceled because 320 * app switches are temporarily canceled to ensure the user's last request 321 * (such as pressing home) is performed. 322 * @hide 323 */ 324 public static final int START_SWITCHES_CANCELED = 4; 325 326 /** 327 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 328 * while in Lock Task Mode. 329 * @hide 330 */ 331 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 332 333 /** 334 * Flag for IActivityManaqer.startActivity: do special start mode where 335 * a new activity is launched only if it is needed. 336 * @hide 337 */ 338 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 339 340 /** 341 * Flag for IActivityManaqer.startActivity: launch the app for 342 * debugging. 343 * @hide 344 */ 345 public static final int START_FLAG_DEBUG = 1<<1; 346 347 /** 348 * Flag for IActivityManaqer.startActivity: launch the app for 349 * allocation tracking. 350 * @hide 351 */ 352 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 353 354 /** 355 * Flag for IActivityManaqer.startActivity: launch the app with 356 * native debugging support. 357 * @hide 358 */ 359 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 360 361 /** 362 * Result for IActivityManaqer.broadcastIntent: success! 363 * @hide 364 */ 365 public static final int BROADCAST_SUCCESS = 0; 366 367 /** 368 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 369 * a sticky intent without appropriate permission. 370 * @hide 371 */ 372 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 373 374 /** 375 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 376 * to a stopped user. Fail. 377 * @hide 378 */ 379 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 380 381 /** 382 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 383 * for a sendBroadcast operation. 384 * @hide 385 */ 386 public static final int INTENT_SENDER_BROADCAST = 1; 387 388 /** 389 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 390 * for a startActivity operation. 391 * @hide 392 */ 393 public static final int INTENT_SENDER_ACTIVITY = 2; 394 395 /** 396 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 397 * for an activity result operation. 398 * @hide 399 */ 400 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 401 402 /** 403 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 404 * for a startService operation. 405 * @hide 406 */ 407 public static final int INTENT_SENDER_SERVICE = 4; 408 409 /** 410 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 411 * for a startForegroundService operation. 412 * @hide 413 */ 414 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 415 416 /** @hide User operation call: success! */ 417 public static final int USER_OP_SUCCESS = 0; 418 419 /** @hide User operation call: given user id is not known. */ 420 public static final int USER_OP_UNKNOWN_USER = -1; 421 422 /** @hide User operation call: given user id is the current user, can't be stopped. */ 423 public static final int USER_OP_IS_CURRENT = -2; 424 425 /** @hide User operation call: system user can't be stopped. */ 426 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 427 428 /** @hide User operation call: one of related users cannot be stopped. */ 429 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 430 431 /** @hide Not a real process state. */ 432 public static final int PROCESS_STATE_UNKNOWN = -1; 433 434 /** @hide Process is a persistent system process. */ 435 public static final int PROCESS_STATE_PERSISTENT = 0; 436 437 /** @hide Process is a persistent system process and is doing UI. */ 438 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 439 440 /** @hide Process is hosting the current top activities. Note that this covers 441 * all activities that are visible to the user. */ 442 public static final int PROCESS_STATE_TOP = 2; 443 444 /** @hide Process is hosting a foreground service due to a system binding. */ 445 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 446 447 /** @hide Process is hosting a foreground service. */ 448 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 449 450 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 451 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 452 453 /** @hide Process is important to the user, and something they are aware of. */ 454 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 455 456 /** @hide Process is important to the user, but not something they are aware of. */ 457 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 458 459 /** @hide Process is in the background running a backup/restore operation. */ 460 public static final int PROCESS_STATE_BACKUP = 8; 461 462 /** @hide Process is in the background, but it can't restore its state so we want 463 * to try to avoid killing it. */ 464 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 465 466 /** @hide Process is in the background running a service. Unlike oom_adj, this level 467 * is used for both the normal running in background state and the executing 468 * operations state. */ 469 public static final int PROCESS_STATE_SERVICE = 10; 470 471 /** @hide Process is in the background running a receiver. Note that from the 472 * perspective of oom_adj receivers run at a higher foreground level, but for our 473 * prioritization here that is not necessary and putting them below services means 474 * many fewer changes in some process states as they receive broadcasts. */ 475 public static final int PROCESS_STATE_RECEIVER = 11; 476 477 /** @hide Process is in the background but hosts the home activity. */ 478 public static final int PROCESS_STATE_HOME = 12; 479 480 /** @hide Process is in the background but hosts the last shown activity. */ 481 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 482 483 /** @hide Process is being cached for later use and contains activities. */ 484 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 485 486 /** @hide Process is being cached for later use and is a client of another cached 487 * process that contains activities. */ 488 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 489 490 /** @hide Process is being cached for later use and is empty. */ 491 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 492 493 /** @hide Process does not exist. */ 494 public static final int PROCESS_STATE_NONEXISTENT = 17; 495 496 /** @hide The lowest process state number */ 497 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 498 499 /** @hide The highest process state number */ 500 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 501 502 /** @hide Should this process state be considered a background state? */ 503 public static final boolean isProcStateBackground(int procState) { 504 return procState >= PROCESS_STATE_BACKUP; 505 } 506 507 /** @hide requestType for assist context: only basic information. */ 508 public static final int ASSIST_CONTEXT_BASIC = 0; 509 510 /** @hide requestType for assist context: generate full AssistStructure. */ 511 public static final int ASSIST_CONTEXT_FULL = 1; 512 513 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 514 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 515 516 /** @hide Flag for registerUidObserver: report changes in process state. */ 517 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 518 519 /** @hide Flag for registerUidObserver: report uid gone. */ 520 public static final int UID_OBSERVER_GONE = 1<<1; 521 522 /** @hide Flag for registerUidObserver: report uid has become idle. */ 523 public static final int UID_OBSERVER_IDLE = 1<<2; 524 525 /** @hide Flag for registerUidObserver: report uid has become active. */ 526 public static final int UID_OBSERVER_ACTIVE = 1<<3; 527 528 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 529 public static final int APP_START_MODE_NORMAL = 0; 530 531 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 532 public static final int APP_START_MODE_DELAYED = 1; 533 534 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 535 * rigid errors (throwing exception). */ 536 public static final int APP_START_MODE_DELAYED_RIGID = 2; 537 538 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 539 * launches; this is the mode for ephemeral apps. */ 540 public static final int APP_START_MODE_DISABLED = 3; 541 542 /** 543 * Lock task mode is not active. 544 */ 545 public static final int LOCK_TASK_MODE_NONE = 0; 546 547 /** 548 * Full lock task mode is active. 549 */ 550 public static final int LOCK_TASK_MODE_LOCKED = 1; 551 552 /** 553 * App pinning mode is active. 554 */ 555 public static final int LOCK_TASK_MODE_PINNED = 2; 556 557 Point mAppTaskThumbnailSize; 558 559 /*package*/ ActivityManager(Context context, Handler handler) { 560 mContext = context; 561 } 562 563 /** 564 * Screen compatibility mode: the application most always run in 565 * compatibility mode. 566 * @hide 567 */ 568 public static final int COMPAT_MODE_ALWAYS = -1; 569 570 /** 571 * Screen compatibility mode: the application can never run in 572 * compatibility mode. 573 * @hide 574 */ 575 public static final int COMPAT_MODE_NEVER = -2; 576 577 /** 578 * Screen compatibility mode: unknown. 579 * @hide 580 */ 581 public static final int COMPAT_MODE_UNKNOWN = -3; 582 583 /** 584 * Screen compatibility mode: the application currently has compatibility 585 * mode disabled. 586 * @hide 587 */ 588 public static final int COMPAT_MODE_DISABLED = 0; 589 590 /** 591 * Screen compatibility mode: the application currently has compatibility 592 * mode enabled. 593 * @hide 594 */ 595 public static final int COMPAT_MODE_ENABLED = 1; 596 597 /** 598 * Screen compatibility mode: request to toggle the application's 599 * compatibility mode. 600 * @hide 601 */ 602 public static final int COMPAT_MODE_TOGGLE = 2; 603 604 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 605 SystemProperties.getBoolean("debug.force_low_ram", false); 606 607 /** @hide */ 608 public static class StackId { 609 /** Invalid stack ID. */ 610 public static final int INVALID_STACK_ID = -1; 611 612 /** First static stack ID. */ 613 public static final int FIRST_STATIC_STACK_ID = 0; 614 615 /** Home activity stack ID. */ 616 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 617 618 /** ID of stack where fullscreen activities are normally launched into. */ 619 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 620 621 /** ID of stack where freeform/resized activities are normally launched into. */ 622 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 623 624 /** ID of stack that occupies a dedicated region of the screen. */ 625 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 626 627 /** ID of stack that always on top (always visible) when it exist. */ 628 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 629 630 /** ID of stack that contains the Recents activity. */ 631 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 632 633 /** ID of stack that contains activities launched by the assistant. */ 634 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 635 636 /** Last static stack stack ID. */ 637 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 638 639 /** Start of ID range used by stacks that are created dynamically. */ 640 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 641 642 public static boolean isStaticStack(int stackId) { 643 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 644 } 645 646 public static boolean isDynamicStack(int stackId) { 647 return stackId >= FIRST_DYNAMIC_STACK_ID; 648 } 649 650 /** 651 * Returns true if the activities contained in the input stack display a shadow around 652 * their border. 653 */ 654 public static boolean hasWindowShadow(int stackId) { 655 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 656 } 657 658 /** 659 * Returns true if the activities contained in the input stack display a decor view. 660 */ 661 public static boolean hasWindowDecor(int stackId) { 662 return stackId == FREEFORM_WORKSPACE_STACK_ID; 663 } 664 665 /** 666 * Returns true if the tasks contained in the stack can be resized independently of the 667 * stack. 668 */ 669 public static boolean isTaskResizeAllowed(int stackId) { 670 return stackId == FREEFORM_WORKSPACE_STACK_ID; 671 } 672 673 /** Returns true if the task bounds should persist across power cycles. */ 674 public static boolean persistTaskBounds(int stackId) { 675 return stackId == FREEFORM_WORKSPACE_STACK_ID; 676 } 677 678 /** 679 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 680 */ 681 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 682 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 683 } 684 685 /** 686 * Returns true if we try to maintain focus in the current stack when the top activity 687 * finishes. 688 */ 689 public static boolean keepFocusInStackIfPossible(int stackId) { 690 return stackId == FREEFORM_WORKSPACE_STACK_ID 691 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 692 } 693 694 /** 695 * Returns true if Stack size is affected by the docked stack changing size. 696 */ 697 public static boolean isResizeableByDockedStack(int stackId) { 698 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 699 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 700 } 701 702 /** 703 * Returns true if the size of tasks in the input stack are affected by the docked stack 704 * changing size. 705 */ 706 public static boolean isTaskResizeableByDockedStack(int stackId) { 707 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 708 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 709 && stackId != ASSISTANT_STACK_ID; 710 } 711 712 /** 713 * Returns true if the input stack is affected by drag resizing. 714 */ 715 public static boolean isStackAffectedByDragResizing(int stackId) { 716 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 717 && stackId != ASSISTANT_STACK_ID; 718 } 719 720 /** 721 * Returns true if the windows of tasks being moved to the target stack from the source 722 * stack should be replaced, meaning that window manager will keep the old window around 723 * until the new is ready. 724 */ 725 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 726 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 727 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 728 } 729 730 /** 731 * Return whether a stackId is a stack containing floating windows. Floating windows 732 * are laid out differently as they are allowed to extend past the display bounds 733 * without overscan insets. 734 */ 735 public static boolean tasksAreFloating(int stackId) { 736 return stackId == FREEFORM_WORKSPACE_STACK_ID 737 || stackId == PINNED_STACK_ID; 738 } 739 740 /** 741 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 742 * are generally fullscreen stacks. 743 */ 744 public static boolean isBackdropToTranslucentActivity(int stackId) { 745 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 746 || stackId == ASSISTANT_STACK_ID; 747 } 748 749 /** 750 * Returns true if animation specs should be constructed for app transition that moves 751 * the task to the specified stack. 752 */ 753 public static boolean useAnimationSpecForAppTransition(int stackId) { 754 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 755 // reboots. 756 return stackId == FREEFORM_WORKSPACE_STACK_ID 757 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 758 || stackId == ASSISTANT_STACK_ID 759 || stackId == DOCKED_STACK_ID 760 || stackId == INVALID_STACK_ID; 761 } 762 763 /** 764 * Returns true if the windows in the stack can receive input keys. 765 */ 766 public static boolean canReceiveKeys(int stackId) { 767 return stackId != PINNED_STACK_ID; 768 } 769 770 /** 771 * Returns true if the stack can be visible above lockscreen. 772 */ 773 public static boolean isAllowedOverLockscreen(int stackId) { 774 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 775 stackId == ASSISTANT_STACK_ID; 776 } 777 778 /** 779 * Returns true if activities from stasks in the given {@param stackId} are allowed to 780 * enter picture-in-picture. 781 */ 782 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 783 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 784 stackId != RECENTS_STACK_ID; 785 } 786 787 public static boolean isAlwaysOnTop(int stackId) { 788 return stackId == PINNED_STACK_ID; 789 } 790 791 /** 792 * Returns true if the top task in the task is allowed to return home when finished and 793 * there are other tasks in the stack. 794 */ 795 public static boolean allowTopTaskToReturnHome(int stackId) { 796 return stackId != PINNED_STACK_ID; 797 } 798 799 /** 800 * Returns true if the stack should be resized to match the bounds specified by 801 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 802 */ 803 public static boolean resizeStackWithLaunchBounds(int stackId) { 804 return stackId == PINNED_STACK_ID; 805 } 806 807 /** 808 * Returns true if any visible windows belonging to apps in this stack should be kept on 809 * screen when the app is killed due to something like the low memory killer. 810 */ 811 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 812 return stackId != PINNED_STACK_ID; 813 } 814 815 /** 816 * Returns true if the backdrop on the client side should match the frame of the window. 817 * Returns false, if the backdrop should be fullscreen. 818 */ 819 public static boolean useWindowFrameForBackdrop(int stackId) { 820 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 821 } 822 823 /** 824 * Returns true if a window from the specified stack with {@param stackId} are normally 825 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 826 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 827 * etc. 828 */ 829 public static boolean normallyFullscreenWindows(int stackId) { 830 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 831 && stackId != DOCKED_STACK_ID; 832 } 833 834 /** 835 * Returns true if the input stack id should only be present on a device that supports 836 * multi-window mode. 837 * @see android.app.ActivityManager#supportsMultiWindow 838 */ 839 public static boolean isMultiWindowStack(int stackId) { 840 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 841 || stackId == DOCKED_STACK_ID; 842 } 843 844 /** 845 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 846 */ 847 public static boolean isHomeOrRecentsStack(int stackId) { 848 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 849 } 850 851 /** 852 * Returns true if activities contained in this stack can request visible behind by 853 * calling {@link Activity#requestVisibleBehind}. 854 */ 855 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 856 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 857 stackId == ASSISTANT_STACK_ID; 858 } 859 860 /** 861 * Returns true if this stack may be scaled without resizing, and windows within may need 862 * to be configured as such. 863 */ 864 public static boolean windowsAreScaleable(int stackId) { 865 return stackId == PINNED_STACK_ID; 866 } 867 868 /** 869 * Returns true if windows in this stack should be given move animations by default. 870 */ 871 public static boolean hasMovementAnimations(int stackId) { 872 return stackId != PINNED_STACK_ID; 873 } 874 875 /** Returns true if the input stack and its content can affect the device orientation. */ 876 public static boolean canSpecifyOrientation(int stackId) { 877 return stackId == HOME_STACK_ID 878 || stackId == RECENTS_STACK_ID 879 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 880 || stackId == ASSISTANT_STACK_ID 881 || isDynamicStack(stackId); 882 } 883 } 884 885 /** 886 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 887 * specifies the position of the created docked stack at the top half of the screen if 888 * in portrait mode or at the left half of the screen if in landscape mode. 889 * @hide 890 */ 891 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 892 893 /** 894 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 895 * specifies the position of the created docked stack at the bottom half of the screen if 896 * in portrait mode or at the right half of the screen if in landscape mode. 897 * @hide 898 */ 899 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 900 901 /** 902 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 903 * that the resize doesn't need to preserve the window, and can be skipped if bounds 904 * is unchanged. This mode is used by window manager in most cases. 905 * @hide 906 */ 907 public static final int RESIZE_MODE_SYSTEM = 0; 908 909 /** 910 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 911 * that the resize should preserve the window if possible. 912 * @hide 913 */ 914 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 915 916 /** 917 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 918 * that the resize should be performed even if the bounds appears unchanged. 919 * @hide 920 */ 921 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 922 923 /** 924 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 925 * manager during a screen rotation. 926 * @hide 927 */ 928 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 929 930 /** 931 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 932 * resize is due to a drag action. 933 * @hide 934 */ 935 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 936 937 /** 938 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 939 * that the resize should preserve the window if possible, and should not be skipped 940 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 941 * is ending. 942 * @hide 943 */ 944 public static final int RESIZE_MODE_USER_FORCED = 945 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 946 947 /** @hide */ 948 public int getFrontActivityScreenCompatMode() { 949 try { 950 return getService().getFrontActivityScreenCompatMode(); 951 } catch (RemoteException e) { 952 throw e.rethrowFromSystemServer(); 953 } 954 } 955 956 /** @hide */ 957 public void setFrontActivityScreenCompatMode(int mode) { 958 try { 959 getService().setFrontActivityScreenCompatMode(mode); 960 } catch (RemoteException e) { 961 throw e.rethrowFromSystemServer(); 962 } 963 } 964 965 /** @hide */ 966 public int getPackageScreenCompatMode(String packageName) { 967 try { 968 return getService().getPackageScreenCompatMode(packageName); 969 } catch (RemoteException e) { 970 throw e.rethrowFromSystemServer(); 971 } 972 } 973 974 /** @hide */ 975 public void setPackageScreenCompatMode(String packageName, int mode) { 976 try { 977 getService().setPackageScreenCompatMode(packageName, mode); 978 } catch (RemoteException e) { 979 throw e.rethrowFromSystemServer(); 980 } 981 } 982 983 /** @hide */ 984 public boolean getPackageAskScreenCompat(String packageName) { 985 try { 986 return getService().getPackageAskScreenCompat(packageName); 987 } catch (RemoteException e) { 988 throw e.rethrowFromSystemServer(); 989 } 990 } 991 992 /** @hide */ 993 public void setPackageAskScreenCompat(String packageName, boolean ask) { 994 try { 995 getService().setPackageAskScreenCompat(packageName, ask); 996 } catch (RemoteException e) { 997 throw e.rethrowFromSystemServer(); 998 } 999 } 1000 1001 /** 1002 * Return the approximate per-application memory class of the current 1003 * device. This gives you an idea of how hard a memory limit you should 1004 * impose on your application to let the overall system work best. The 1005 * returned value is in megabytes; the baseline Android memory class is 1006 * 16 (which happens to be the Java heap limit of those devices); some 1007 * device with more memory may return 24 or even higher numbers. 1008 */ 1009 public int getMemoryClass() { 1010 return staticGetMemoryClass(); 1011 } 1012 1013 /** @hide */ 1014 static public int staticGetMemoryClass() { 1015 // Really brain dead right now -- just take this from the configured 1016 // vm heap size, and assume it is in megabytes and thus ends with "m". 1017 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1018 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1019 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1020 } 1021 return staticGetLargeMemoryClass(); 1022 } 1023 1024 /** 1025 * Return the approximate per-application memory class of the current 1026 * device when an application is running with a large heap. This is the 1027 * space available for memory-intensive applications; most applications 1028 * should not need this amount of memory, and should instead stay with the 1029 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1030 * This may be the same size as {@link #getMemoryClass()} on memory 1031 * constrained devices, or it may be significantly larger on devices with 1032 * a large amount of available RAM. 1033 * 1034 * <p>The is the size of the application's Dalvik heap if it has 1035 * specified <code>android:largeHeap="true"</code> in its manifest. 1036 */ 1037 public int getLargeMemoryClass() { 1038 return staticGetLargeMemoryClass(); 1039 } 1040 1041 /** @hide */ 1042 static public int staticGetLargeMemoryClass() { 1043 // Really brain dead right now -- just take this from the configured 1044 // vm heap size, and assume it is in megabytes and thus ends with "m". 1045 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1046 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1047 } 1048 1049 /** 1050 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1051 * is ultimately up to the device configuration, but currently it generally means 1052 * something in the class of a 512MB device with about a 800x480 or less screen. 1053 * This is mostly intended to be used by apps to determine whether they should turn 1054 * off certain features that require more RAM. 1055 */ 1056 public boolean isLowRamDevice() { 1057 return isLowRamDeviceStatic(); 1058 } 1059 1060 /** @hide */ 1061 public static boolean isLowRamDeviceStatic() { 1062 return RoSystemProperties.CONFIG_LOW_RAM || 1063 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1064 } 1065 1066 /** 1067 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1068 * small battery is ultimately up to the device configuration, but currently it generally means 1069 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1070 * to determine whether certain features should be altered to account for a drastically smaller 1071 * battery. 1072 * @hide 1073 */ 1074 public static boolean isSmallBatteryDevice() { 1075 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1076 } 1077 1078 /** 1079 * Used by persistent processes to determine if they are running on a 1080 * higher-end device so should be okay using hardware drawing acceleration 1081 * (which tends to consume a lot more RAM). 1082 * @hide 1083 */ 1084 static public boolean isHighEndGfx() { 1085 return !isLowRamDeviceStatic() && 1086 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1087 } 1088 1089 /** 1090 * Return the maximum number of recents entries that we will maintain and show. 1091 * @hide 1092 */ 1093 static public int getMaxRecentTasksStatic() { 1094 if (gMaxRecentTasks < 0) { 1095 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1096 } 1097 return gMaxRecentTasks; 1098 } 1099 1100 /** 1101 * Return the default limit on the number of recents that an app can make. 1102 * @hide 1103 */ 1104 static public int getDefaultAppRecentsLimitStatic() { 1105 return getMaxRecentTasksStatic() / 6; 1106 } 1107 1108 /** 1109 * Return the maximum limit on the number of recents that an app can make. 1110 * @hide 1111 */ 1112 static public int getMaxAppRecentsLimitStatic() { 1113 return getMaxRecentTasksStatic() / 2; 1114 } 1115 1116 /** 1117 * Returns true if the system supports at least one form of multi-window. 1118 * E.g. freeform, split-screen, picture-in-picture. 1119 * @hide 1120 */ 1121 static public boolean supportsMultiWindow() { 1122 return !isLowRamDeviceStatic() 1123 && Resources.getSystem().getBoolean( 1124 com.android.internal.R.bool.config_supportsMultiWindow); 1125 } 1126 1127 /** 1128 * Returns true if the system supports split screen multi-window. 1129 * @hide 1130 */ 1131 static public boolean supportsSplitScreenMultiWindow() { 1132 return supportsMultiWindow() 1133 && Resources.getSystem().getBoolean( 1134 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1135 } 1136 1137 /** 1138 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1139 * the user interacts with the activity currently in picture-in-picture mode. 1140 */ 1141 public static int getMaxNumPictureInPictureActions() { 1142 return NUM_ALLOWED_PIP_ACTIONS; 1143 } 1144 1145 /** 1146 * Information you can set and retrieve about the current activity within the recent task list. 1147 */ 1148 public static class TaskDescription implements Parcelable { 1149 /** @hide */ 1150 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1151 private static final String ATTR_TASKDESCRIPTIONLABEL = 1152 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1153 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1154 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1155 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1156 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1157 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1158 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1159 1160 private String mLabel; 1161 private Bitmap mIcon; 1162 private String mIconFilename; 1163 private int mColorPrimary; 1164 private int mColorBackground; 1165 private int mStatusBarColor; 1166 private int mNavigationBarColor; 1167 1168 /** 1169 * Creates the TaskDescription to the specified values. 1170 * 1171 * @param label A label and description of the current state of this task. 1172 * @param icon An icon that represents the current state of this task. 1173 * @param colorPrimary A color to override the theme's primary color. This color must be 1174 * opaque. 1175 */ 1176 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1177 this(label, icon, null, colorPrimary, 0, 0, 0); 1178 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1179 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1180 } 1181 } 1182 1183 /** 1184 * Creates the TaskDescription to the specified values. 1185 * 1186 * @param label A label and description of the current state of this activity. 1187 * @param icon An icon that represents the current state of this activity. 1188 */ 1189 public TaskDescription(String label, Bitmap icon) { 1190 this(label, icon, null, 0, 0, 0, 0); 1191 } 1192 1193 /** 1194 * Creates the TaskDescription to the specified values. 1195 * 1196 * @param label A label and description of the current state of this activity. 1197 */ 1198 public TaskDescription(String label) { 1199 this(label, null, null, 0, 0, 0, 0); 1200 } 1201 1202 /** 1203 * Creates an empty TaskDescription. 1204 */ 1205 public TaskDescription() { 1206 this(null, null, null, 0, 0, 0, 0); 1207 } 1208 1209 /** @hide */ 1210 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1211 int colorBackground, int statusBarColor, int navigationBarColor) { 1212 mLabel = label; 1213 mIcon = icon; 1214 mIconFilename = iconFilename; 1215 mColorPrimary = colorPrimary; 1216 mColorBackground = colorBackground; 1217 mStatusBarColor = statusBarColor; 1218 mNavigationBarColor = navigationBarColor; 1219 } 1220 1221 /** 1222 * Creates a copy of another TaskDescription. 1223 */ 1224 public TaskDescription(TaskDescription td) { 1225 copyFrom(td); 1226 } 1227 1228 /** 1229 * Copies this the values from another TaskDescription. 1230 * @hide 1231 */ 1232 public void copyFrom(TaskDescription other) { 1233 mLabel = other.mLabel; 1234 mIcon = other.mIcon; 1235 mIconFilename = other.mIconFilename; 1236 mColorPrimary = other.mColorPrimary; 1237 mColorBackground = other.mColorBackground; 1238 mStatusBarColor = other.mStatusBarColor; 1239 mNavigationBarColor = other.mNavigationBarColor; 1240 } 1241 1242 /** 1243 * Copies this the values from another TaskDescription, but preserves the hidden fields 1244 * if they weren't set on {@code other} 1245 * @hide 1246 */ 1247 public void copyFromPreserveHiddenFields(TaskDescription other) { 1248 mLabel = other.mLabel; 1249 mIcon = other.mIcon; 1250 mIconFilename = other.mIconFilename; 1251 mColorPrimary = other.mColorPrimary; 1252 if (other.mColorBackground != 0) { 1253 mColorBackground = other.mColorBackground; 1254 } 1255 if (other.mStatusBarColor != 0) { 1256 mStatusBarColor = other.mStatusBarColor; 1257 } 1258 if (other.mNavigationBarColor != 0) { 1259 mNavigationBarColor = other.mNavigationBarColor; 1260 } 1261 } 1262 1263 private TaskDescription(Parcel source) { 1264 readFromParcel(source); 1265 } 1266 1267 /** 1268 * Sets the label for this task description. 1269 * @hide 1270 */ 1271 public void setLabel(String label) { 1272 mLabel = label; 1273 } 1274 1275 /** 1276 * Sets the primary color for this task description. 1277 * @hide 1278 */ 1279 public void setPrimaryColor(int primaryColor) { 1280 // Ensure that the given color is valid 1281 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1282 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1283 } 1284 mColorPrimary = primaryColor; 1285 } 1286 1287 /** 1288 * Sets the background color for this task description. 1289 * @hide 1290 */ 1291 public void setBackgroundColor(int backgroundColor) { 1292 // Ensure that the given color is valid 1293 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1294 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1295 } 1296 mColorBackground = backgroundColor; 1297 } 1298 1299 /** 1300 * @hide 1301 */ 1302 public void setStatusBarColor(int statusBarColor) { 1303 mStatusBarColor = statusBarColor; 1304 } 1305 1306 /** 1307 * @hide 1308 */ 1309 public void setNavigationBarColor(int navigationBarColor) { 1310 mNavigationBarColor = navigationBarColor; 1311 } 1312 1313 /** 1314 * Sets the icon for this task description. 1315 * @hide 1316 */ 1317 public void setIcon(Bitmap icon) { 1318 mIcon = icon; 1319 } 1320 1321 /** 1322 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1323 * bitmap. 1324 * @hide 1325 */ 1326 public void setIconFilename(String iconFilename) { 1327 mIconFilename = iconFilename; 1328 mIcon = null; 1329 } 1330 1331 /** 1332 * @return The label and description of the current state of this task. 1333 */ 1334 public String getLabel() { 1335 return mLabel; 1336 } 1337 1338 /** 1339 * @return The icon that represents the current state of this task. 1340 */ 1341 public Bitmap getIcon() { 1342 if (mIcon != null) { 1343 return mIcon; 1344 } 1345 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1346 } 1347 1348 /** @hide */ 1349 public String getIconFilename() { 1350 return mIconFilename; 1351 } 1352 1353 /** @hide */ 1354 public Bitmap getInMemoryIcon() { 1355 return mIcon; 1356 } 1357 1358 /** @hide */ 1359 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1360 if (iconFilename != null) { 1361 try { 1362 return getService().getTaskDescriptionIcon(iconFilename, 1363 userId); 1364 } catch (RemoteException e) { 1365 throw e.rethrowFromSystemServer(); 1366 } 1367 } 1368 return null; 1369 } 1370 1371 /** 1372 * @return The color override on the theme's primary color. 1373 */ 1374 public int getPrimaryColor() { 1375 return mColorPrimary; 1376 } 1377 1378 /** 1379 * @return The background color. 1380 * @hide 1381 */ 1382 public int getBackgroundColor() { 1383 return mColorBackground; 1384 } 1385 1386 /** 1387 * @hide 1388 */ 1389 public int getStatusBarColor() { 1390 return mStatusBarColor; 1391 } 1392 1393 /** 1394 * @hide 1395 */ 1396 public int getNavigationBarColor() { 1397 return mNavigationBarColor; 1398 } 1399 1400 /** @hide */ 1401 public void saveToXml(XmlSerializer out) throws IOException { 1402 if (mLabel != null) { 1403 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1404 } 1405 if (mColorPrimary != 0) { 1406 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1407 Integer.toHexString(mColorPrimary)); 1408 } 1409 if (mColorBackground != 0) { 1410 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1411 Integer.toHexString(mColorBackground)); 1412 } 1413 if (mIconFilename != null) { 1414 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1415 } 1416 } 1417 1418 /** @hide */ 1419 public void restoreFromXml(String attrName, String attrValue) { 1420 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1421 setLabel(attrValue); 1422 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1423 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1424 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1425 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1426 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1427 setIconFilename(attrValue); 1428 } 1429 } 1430 1431 @Override 1432 public int describeContents() { 1433 return 0; 1434 } 1435 1436 @Override 1437 public void writeToParcel(Parcel dest, int flags) { 1438 if (mLabel == null) { 1439 dest.writeInt(0); 1440 } else { 1441 dest.writeInt(1); 1442 dest.writeString(mLabel); 1443 } 1444 if (mIcon == null) { 1445 dest.writeInt(0); 1446 } else { 1447 dest.writeInt(1); 1448 mIcon.writeToParcel(dest, 0); 1449 } 1450 dest.writeInt(mColorPrimary); 1451 dest.writeInt(mColorBackground); 1452 dest.writeInt(mStatusBarColor); 1453 dest.writeInt(mNavigationBarColor); 1454 if (mIconFilename == null) { 1455 dest.writeInt(0); 1456 } else { 1457 dest.writeInt(1); 1458 dest.writeString(mIconFilename); 1459 } 1460 } 1461 1462 public void readFromParcel(Parcel source) { 1463 mLabel = source.readInt() > 0 ? source.readString() : null; 1464 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1465 mColorPrimary = source.readInt(); 1466 mColorBackground = source.readInt(); 1467 mStatusBarColor = source.readInt(); 1468 mNavigationBarColor = source.readInt(); 1469 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1470 } 1471 1472 public static final Creator<TaskDescription> CREATOR 1473 = new Creator<TaskDescription>() { 1474 public TaskDescription createFromParcel(Parcel source) { 1475 return new TaskDescription(source); 1476 } 1477 public TaskDescription[] newArray(int size) { 1478 return new TaskDescription[size]; 1479 } 1480 }; 1481 1482 @Override 1483 public String toString() { 1484 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1485 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1486 " colorBackground: " + mColorBackground + 1487 " statusBarColor: " + mColorBackground + 1488 " navigationBarColor: " + mNavigationBarColor; 1489 } 1490 } 1491 1492 /** 1493 * Information you can retrieve about tasks that the user has most recently 1494 * started or visited. 1495 */ 1496 public static class RecentTaskInfo implements Parcelable { 1497 /** 1498 * If this task is currently running, this is the identifier for it. 1499 * If it is not running, this will be -1. 1500 */ 1501 public int id; 1502 1503 /** 1504 * The true identifier of this task, valid even if it is not running. 1505 */ 1506 public int persistentId; 1507 1508 /** 1509 * The original Intent used to launch the task. You can use this 1510 * Intent to re-launch the task (if it is no longer running) or bring 1511 * the current task to the front. 1512 */ 1513 public Intent baseIntent; 1514 1515 /** 1516 * If this task was started from an alias, this is the actual 1517 * activity component that was initially started; the component of 1518 * the baseIntent in this case is the name of the actual activity 1519 * implementation that the alias referred to. Otherwise, this is null. 1520 */ 1521 public ComponentName origActivity; 1522 1523 /** 1524 * The actual activity component that started the task. 1525 * @hide 1526 */ 1527 @Nullable 1528 public ComponentName realActivity; 1529 1530 /** 1531 * Description of the task's last state. 1532 */ 1533 public CharSequence description; 1534 1535 /** 1536 * The id of the ActivityStack this Task was on most recently. 1537 * @hide 1538 */ 1539 public int stackId; 1540 1541 /** 1542 * The id of the user the task was running as. 1543 * @hide 1544 */ 1545 public int userId; 1546 1547 /** 1548 * The first time this task was active. 1549 * @hide 1550 */ 1551 public long firstActiveTime; 1552 1553 /** 1554 * The last time this task was active. 1555 * @hide 1556 */ 1557 public long lastActiveTime; 1558 1559 /** 1560 * The recent activity values for the highest activity in the stack to have set the values. 1561 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1562 */ 1563 public TaskDescription taskDescription; 1564 1565 /** 1566 * Task affiliation for grouping with other tasks. 1567 */ 1568 public int affiliatedTaskId; 1569 1570 /** 1571 * Task affiliation color of the source task with the affiliated task id. 1572 * 1573 * @hide 1574 */ 1575 public int affiliatedTaskColor; 1576 1577 /** 1578 * The component launched as the first activity in the task. 1579 * This can be considered the "application" of this task. 1580 */ 1581 public ComponentName baseActivity; 1582 1583 /** 1584 * The activity component at the top of the history stack of the task. 1585 * This is what the user is currently doing. 1586 */ 1587 public ComponentName topActivity; 1588 1589 /** 1590 * Number of activities in this task. 1591 */ 1592 public int numActivities; 1593 1594 /** 1595 * The bounds of the task. 1596 * @hide 1597 */ 1598 public Rect bounds; 1599 1600 /** 1601 * True if the task can go in the docked stack. 1602 * @hide 1603 */ 1604 public boolean supportsSplitScreenMultiWindow; 1605 1606 /** 1607 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1608 * @hide 1609 */ 1610 public int resizeMode; 1611 1612 public RecentTaskInfo() { 1613 } 1614 1615 @Override 1616 public int describeContents() { 1617 return 0; 1618 } 1619 1620 @Override 1621 public void writeToParcel(Parcel dest, int flags) { 1622 dest.writeInt(id); 1623 dest.writeInt(persistentId); 1624 if (baseIntent != null) { 1625 dest.writeInt(1); 1626 baseIntent.writeToParcel(dest, 0); 1627 } else { 1628 dest.writeInt(0); 1629 } 1630 ComponentName.writeToParcel(origActivity, dest); 1631 ComponentName.writeToParcel(realActivity, dest); 1632 TextUtils.writeToParcel(description, dest, 1633 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1634 if (taskDescription != null) { 1635 dest.writeInt(1); 1636 taskDescription.writeToParcel(dest, 0); 1637 } else { 1638 dest.writeInt(0); 1639 } 1640 dest.writeInt(stackId); 1641 dest.writeInt(userId); 1642 dest.writeLong(firstActiveTime); 1643 dest.writeLong(lastActiveTime); 1644 dest.writeInt(affiliatedTaskId); 1645 dest.writeInt(affiliatedTaskColor); 1646 ComponentName.writeToParcel(baseActivity, dest); 1647 ComponentName.writeToParcel(topActivity, dest); 1648 dest.writeInt(numActivities); 1649 if (bounds != null) { 1650 dest.writeInt(1); 1651 bounds.writeToParcel(dest, 0); 1652 } else { 1653 dest.writeInt(0); 1654 } 1655 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1656 dest.writeInt(resizeMode); 1657 } 1658 1659 public void readFromParcel(Parcel source) { 1660 id = source.readInt(); 1661 persistentId = source.readInt(); 1662 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1663 origActivity = ComponentName.readFromParcel(source); 1664 realActivity = ComponentName.readFromParcel(source); 1665 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1666 taskDescription = source.readInt() > 0 ? 1667 TaskDescription.CREATOR.createFromParcel(source) : null; 1668 stackId = source.readInt(); 1669 userId = source.readInt(); 1670 firstActiveTime = source.readLong(); 1671 lastActiveTime = source.readLong(); 1672 affiliatedTaskId = source.readInt(); 1673 affiliatedTaskColor = source.readInt(); 1674 baseActivity = ComponentName.readFromParcel(source); 1675 topActivity = ComponentName.readFromParcel(source); 1676 numActivities = source.readInt(); 1677 bounds = source.readInt() > 0 ? 1678 Rect.CREATOR.createFromParcel(source) : null; 1679 supportsSplitScreenMultiWindow = source.readInt() == 1; 1680 resizeMode = source.readInt(); 1681 } 1682 1683 public static final Creator<RecentTaskInfo> CREATOR 1684 = new Creator<RecentTaskInfo>() { 1685 public RecentTaskInfo createFromParcel(Parcel source) { 1686 return new RecentTaskInfo(source); 1687 } 1688 public RecentTaskInfo[] newArray(int size) { 1689 return new RecentTaskInfo[size]; 1690 } 1691 }; 1692 1693 private RecentTaskInfo(Parcel source) { 1694 readFromParcel(source); 1695 } 1696 } 1697 1698 /** 1699 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1700 * that have set their 1701 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1702 */ 1703 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1704 1705 /** 1706 * Provides a list that does not contain any 1707 * recent tasks that currently are not available to the user. 1708 */ 1709 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1710 1711 /** 1712 * Provides a list that contains recent tasks for all 1713 * profiles of a user. 1714 * @hide 1715 */ 1716 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1717 1718 /** 1719 * Ignores all tasks that are on the home stack. 1720 * @hide 1721 */ 1722 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1723 1724 /** 1725 * Ignores the top task in the docked stack. 1726 * @hide 1727 */ 1728 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1729 1730 /** 1731 * Ignores all tasks that are on the pinned stack. 1732 * @hide 1733 */ 1734 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1735 1736 /** 1737 * <p></p>Return a list of the tasks that the user has recently launched, with 1738 * the most recent being first and older ones after in order. 1739 * 1740 * <p><b>Note: this method is only intended for debugging and presenting 1741 * task management user interfaces</b>. This should never be used for 1742 * core logic in an application, such as deciding between different 1743 * behaviors based on the information found here. Such uses are 1744 * <em>not</em> supported, and will likely break in the future. For 1745 * example, if multiple applications can be actively running at the 1746 * same time, assumptions made about the meaning of the data here for 1747 * purposes of control flow will be incorrect.</p> 1748 * 1749 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1750 * no longer available to third party applications: the introduction of 1751 * document-centric recents means 1752 * it can leak personal information to the caller. For backwards compatibility, 1753 * it will still return a small subset of its data: at least the caller's 1754 * own tasks (though see {@link #getAppTasks()} for the correct supported 1755 * way to retrieve that information), and possibly some other tasks 1756 * such as home that are known to not be sensitive. 1757 * 1758 * @param maxNum The maximum number of entries to return in the list. The 1759 * actual number returned may be smaller, depending on how many tasks the 1760 * user has started and the maximum number the system can remember. 1761 * @param flags Information about what to return. May be any combination 1762 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1763 * 1764 * @return Returns a list of RecentTaskInfo records describing each of 1765 * the recent tasks. 1766 */ 1767 @Deprecated 1768 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1769 throws SecurityException { 1770 try { 1771 return getService().getRecentTasks(maxNum, 1772 flags, UserHandle.myUserId()).getList(); 1773 } catch (RemoteException e) { 1774 throw e.rethrowFromSystemServer(); 1775 } 1776 } 1777 1778 /** 1779 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1780 * specific user. It requires holding 1781 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1782 * @param maxNum The maximum number of entries to return in the list. The 1783 * actual number returned may be smaller, depending on how many tasks the 1784 * user has started and the maximum number the system can remember. 1785 * @param flags Information about what to return. May be any combination 1786 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1787 * 1788 * @return Returns a list of RecentTaskInfo records describing each of 1789 * the recent tasks. Most recently activated tasks go first. 1790 * 1791 * @hide 1792 */ 1793 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1794 throws SecurityException { 1795 try { 1796 return getService().getRecentTasks(maxNum, 1797 flags, userId).getList(); 1798 } catch (RemoteException e) { 1799 throw e.rethrowFromSystemServer(); 1800 } 1801 } 1802 1803 /** 1804 * Information you can retrieve about a particular task that is currently 1805 * "running" in the system. Note that a running task does not mean the 1806 * given task actually has a process it is actively running in; it simply 1807 * means that the user has gone to it and never closed it, but currently 1808 * the system may have killed its process and is only holding on to its 1809 * last state in order to restart it when the user returns. 1810 */ 1811 public static class RunningTaskInfo implements Parcelable { 1812 /** 1813 * A unique identifier for this task. 1814 */ 1815 public int id; 1816 1817 /** 1818 * The stack that currently contains this task. 1819 * @hide 1820 */ 1821 public int stackId; 1822 1823 /** 1824 * The component launched as the first activity in the task. This can 1825 * be considered the "application" of this task. 1826 */ 1827 public ComponentName baseActivity; 1828 1829 /** 1830 * The activity component at the top of the history stack of the task. 1831 * This is what the user is currently doing. 1832 */ 1833 public ComponentName topActivity; 1834 1835 /** 1836 * Thumbnail representation of the task's current state. Currently 1837 * always null. 1838 */ 1839 public Bitmap thumbnail; 1840 1841 /** 1842 * Description of the task's current state. 1843 */ 1844 public CharSequence description; 1845 1846 /** 1847 * Number of activities in this task. 1848 */ 1849 public int numActivities; 1850 1851 /** 1852 * Number of activities that are currently running (not stopped 1853 * and persisted) in this task. 1854 */ 1855 public int numRunning; 1856 1857 /** 1858 * Last time task was run. For sorting. 1859 * @hide 1860 */ 1861 public long lastActiveTime; 1862 1863 /** 1864 * True if the task can go in the docked stack. 1865 * @hide 1866 */ 1867 public boolean supportsSplitScreenMultiWindow; 1868 1869 /** 1870 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1871 * @hide 1872 */ 1873 public int resizeMode; 1874 1875 public RunningTaskInfo() { 1876 } 1877 1878 public int describeContents() { 1879 return 0; 1880 } 1881 1882 public void writeToParcel(Parcel dest, int flags) { 1883 dest.writeInt(id); 1884 dest.writeInt(stackId); 1885 ComponentName.writeToParcel(baseActivity, dest); 1886 ComponentName.writeToParcel(topActivity, dest); 1887 if (thumbnail != null) { 1888 dest.writeInt(1); 1889 thumbnail.writeToParcel(dest, 0); 1890 } else { 1891 dest.writeInt(0); 1892 } 1893 TextUtils.writeToParcel(description, dest, 1894 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1895 dest.writeInt(numActivities); 1896 dest.writeInt(numRunning); 1897 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1898 dest.writeInt(resizeMode); 1899 } 1900 1901 public void readFromParcel(Parcel source) { 1902 id = source.readInt(); 1903 stackId = source.readInt(); 1904 baseActivity = ComponentName.readFromParcel(source); 1905 topActivity = ComponentName.readFromParcel(source); 1906 if (source.readInt() != 0) { 1907 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1908 } else { 1909 thumbnail = null; 1910 } 1911 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1912 numActivities = source.readInt(); 1913 numRunning = source.readInt(); 1914 supportsSplitScreenMultiWindow = source.readInt() != 0; 1915 resizeMode = source.readInt(); 1916 } 1917 1918 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1919 public RunningTaskInfo createFromParcel(Parcel source) { 1920 return new RunningTaskInfo(source); 1921 } 1922 public RunningTaskInfo[] newArray(int size) { 1923 return new RunningTaskInfo[size]; 1924 } 1925 }; 1926 1927 private RunningTaskInfo(Parcel source) { 1928 readFromParcel(source); 1929 } 1930 } 1931 1932 /** 1933 * Get the list of tasks associated with the calling application. 1934 * 1935 * @return The list of tasks associated with the application making this call. 1936 * @throws SecurityException 1937 */ 1938 public List<ActivityManager.AppTask> getAppTasks() { 1939 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1940 List<IBinder> appTasks; 1941 try { 1942 appTasks = getService().getAppTasks(mContext.getPackageName()); 1943 } catch (RemoteException e) { 1944 throw e.rethrowFromSystemServer(); 1945 } 1946 int numAppTasks = appTasks.size(); 1947 for (int i = 0; i < numAppTasks; i++) { 1948 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1949 } 1950 return tasks; 1951 } 1952 1953 /** 1954 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1955 * with {@link #addAppTask}. 1956 */ 1957 public Size getAppTaskThumbnailSize() { 1958 synchronized (this) { 1959 ensureAppTaskThumbnailSizeLocked(); 1960 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1961 } 1962 } 1963 1964 private void ensureAppTaskThumbnailSizeLocked() { 1965 if (mAppTaskThumbnailSize == null) { 1966 try { 1967 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1968 } catch (RemoteException e) { 1969 throw e.rethrowFromSystemServer(); 1970 } 1971 } 1972 } 1973 1974 /** 1975 * Add a new {@link AppTask} for the calling application. This will create a new 1976 * recents entry that is added to the <b>end</b> of all existing recents. 1977 * 1978 * @param activity The activity that is adding the entry. This is used to help determine 1979 * the context that the new recents entry will be in. 1980 * @param intent The Intent that describes the recents entry. This is the same Intent that 1981 * you would have used to launch the activity for it. In generally you will want to set 1982 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1983 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1984 * entry will exist without an activity, so it doesn't make sense to not retain it when 1985 * its activity disappears. The given Intent here also must have an explicit ComponentName 1986 * set on it. 1987 * @param description Optional additional description information. 1988 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1989 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1990 * recreated in your process, probably in a way you don't like, before the recents entry 1991 * is added. 1992 * 1993 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1994 * most likely cause of failure is that there is no more room for more tasks for your app. 1995 */ 1996 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1997 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1998 Point size; 1999 synchronized (this) { 2000 ensureAppTaskThumbnailSizeLocked(); 2001 size = mAppTaskThumbnailSize; 2002 } 2003 final int tw = thumbnail.getWidth(); 2004 final int th = thumbnail.getHeight(); 2005 if (tw != size.x || th != size.y) { 2006 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2007 2008 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2009 float scale; 2010 float dx = 0, dy = 0; 2011 if (tw * size.x > size.y * th) { 2012 scale = (float) size.x / (float) th; 2013 dx = (size.y - tw * scale) * 0.5f; 2014 } else { 2015 scale = (float) size.y / (float) tw; 2016 dy = (size.x - th * scale) * 0.5f; 2017 } 2018 Matrix matrix = new Matrix(); 2019 matrix.setScale(scale, scale); 2020 matrix.postTranslate((int) (dx + 0.5f), 0); 2021 2022 Canvas canvas = new Canvas(bm); 2023 canvas.drawBitmap(thumbnail, matrix, null); 2024 canvas.setBitmap(null); 2025 2026 thumbnail = bm; 2027 } 2028 if (description == null) { 2029 description = new TaskDescription(); 2030 } 2031 try { 2032 return getService().addAppTask(activity.getActivityToken(), 2033 intent, description, thumbnail); 2034 } catch (RemoteException e) { 2035 throw e.rethrowFromSystemServer(); 2036 } 2037 } 2038 2039 /** 2040 * Return a list of the tasks that are currently running, with 2041 * the most recent being first and older ones after in order. Note that 2042 * "running" does not mean any of the task's code is currently loaded or 2043 * activity -- the task may have been frozen by the system, so that it 2044 * can be restarted in its previous state when next brought to the 2045 * foreground. 2046 * 2047 * <p><b>Note: this method is only intended for debugging and presenting 2048 * task management user interfaces</b>. This should never be used for 2049 * core logic in an application, such as deciding between different 2050 * behaviors based on the information found here. Such uses are 2051 * <em>not</em> supported, and will likely break in the future. For 2052 * example, if multiple applications can be actively running at the 2053 * same time, assumptions made about the meaning of the data here for 2054 * purposes of control flow will be incorrect.</p> 2055 * 2056 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2057 * is no longer available to third party 2058 * applications: the introduction of document-centric recents means 2059 * it can leak person information to the caller. For backwards compatibility, 2060 * it will still retu rn a small subset of its data: at least the caller's 2061 * own tasks, and possibly some other tasks 2062 * such as home that are known to not be sensitive. 2063 * 2064 * @param maxNum The maximum number of entries to return in the list. The 2065 * actual number returned may be smaller, depending on how many tasks the 2066 * user has started. 2067 * 2068 * @return Returns a list of RunningTaskInfo records describing each of 2069 * the running tasks. 2070 */ 2071 @Deprecated 2072 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2073 throws SecurityException { 2074 try { 2075 return getService().getTasks(maxNum, 0); 2076 } catch (RemoteException e) { 2077 throw e.rethrowFromSystemServer(); 2078 } 2079 } 2080 2081 /** 2082 * Completely remove the given task. 2083 * 2084 * @param taskId Identifier of the task to be removed. 2085 * @return Returns true if the given task was found and removed. 2086 * 2087 * @hide 2088 */ 2089 public boolean removeTask(int taskId) throws SecurityException { 2090 try { 2091 return getService().removeTask(taskId); 2092 } catch (RemoteException e) { 2093 throw e.rethrowFromSystemServer(); 2094 } 2095 } 2096 2097 /** 2098 * Metadata related to the {@link TaskThumbnail}. 2099 * 2100 * @hide 2101 */ 2102 public static class TaskThumbnailInfo implements Parcelable { 2103 /** @hide */ 2104 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2105 private static final String ATTR_TASK_WIDTH = 2106 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2107 private static final String ATTR_TASK_HEIGHT = 2108 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2109 private static final String ATTR_SCREEN_ORIENTATION = 2110 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2111 2112 public int taskWidth; 2113 public int taskHeight; 2114 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2115 2116 public TaskThumbnailInfo() { 2117 // Do nothing 2118 } 2119 2120 private TaskThumbnailInfo(Parcel source) { 2121 readFromParcel(source); 2122 } 2123 2124 /** 2125 * Resets this info state to the initial state. 2126 * @hide 2127 */ 2128 public void reset() { 2129 taskWidth = 0; 2130 taskHeight = 0; 2131 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2132 } 2133 2134 /** 2135 * Copies from another ThumbnailInfo. 2136 */ 2137 public void copyFrom(TaskThumbnailInfo o) { 2138 taskWidth = o.taskWidth; 2139 taskHeight = o.taskHeight; 2140 screenOrientation = o.screenOrientation; 2141 } 2142 2143 /** @hide */ 2144 public void saveToXml(XmlSerializer out) throws IOException { 2145 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2146 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2147 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2148 } 2149 2150 /** @hide */ 2151 public void restoreFromXml(String attrName, String attrValue) { 2152 if (ATTR_TASK_WIDTH.equals(attrName)) { 2153 taskWidth = Integer.parseInt(attrValue); 2154 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2155 taskHeight = Integer.parseInt(attrValue); 2156 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2157 screenOrientation = Integer.parseInt(attrValue); 2158 } 2159 } 2160 2161 public int describeContents() { 2162 return 0; 2163 } 2164 2165 public void writeToParcel(Parcel dest, int flags) { 2166 dest.writeInt(taskWidth); 2167 dest.writeInt(taskHeight); 2168 dest.writeInt(screenOrientation); 2169 } 2170 2171 public void readFromParcel(Parcel source) { 2172 taskWidth = source.readInt(); 2173 taskHeight = source.readInt(); 2174 screenOrientation = source.readInt(); 2175 } 2176 2177 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2178 public TaskThumbnailInfo createFromParcel(Parcel source) { 2179 return new TaskThumbnailInfo(source); 2180 } 2181 public TaskThumbnailInfo[] newArray(int size) { 2182 return new TaskThumbnailInfo[size]; 2183 } 2184 }; 2185 } 2186 2187 /** @hide */ 2188 public static class TaskThumbnail implements Parcelable { 2189 public Bitmap mainThumbnail; 2190 public ParcelFileDescriptor thumbnailFileDescriptor; 2191 public TaskThumbnailInfo thumbnailInfo; 2192 2193 public TaskThumbnail() { 2194 } 2195 2196 private TaskThumbnail(Parcel source) { 2197 readFromParcel(source); 2198 } 2199 2200 public int describeContents() { 2201 if (thumbnailFileDescriptor != null) { 2202 return thumbnailFileDescriptor.describeContents(); 2203 } 2204 return 0; 2205 } 2206 2207 public void writeToParcel(Parcel dest, int flags) { 2208 if (mainThumbnail != null) { 2209 dest.writeInt(1); 2210 mainThumbnail.writeToParcel(dest, flags); 2211 } else { 2212 dest.writeInt(0); 2213 } 2214 if (thumbnailFileDescriptor != null) { 2215 dest.writeInt(1); 2216 thumbnailFileDescriptor.writeToParcel(dest, flags); 2217 } else { 2218 dest.writeInt(0); 2219 } 2220 if (thumbnailInfo != null) { 2221 dest.writeInt(1); 2222 thumbnailInfo.writeToParcel(dest, flags); 2223 } else { 2224 dest.writeInt(0); 2225 } 2226 } 2227 2228 public void readFromParcel(Parcel source) { 2229 if (source.readInt() != 0) { 2230 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2231 } else { 2232 mainThumbnail = null; 2233 } 2234 if (source.readInt() != 0) { 2235 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2236 } else { 2237 thumbnailFileDescriptor = null; 2238 } 2239 if (source.readInt() != 0) { 2240 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2241 } else { 2242 thumbnailInfo = null; 2243 } 2244 } 2245 2246 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2247 public TaskThumbnail createFromParcel(Parcel source) { 2248 return new TaskThumbnail(source); 2249 } 2250 public TaskThumbnail[] newArray(int size) { 2251 return new TaskThumbnail[size]; 2252 } 2253 }; 2254 } 2255 2256 /** 2257 * Represents a task snapshot. 2258 * @hide 2259 */ 2260 public static class TaskSnapshot implements Parcelable { 2261 2262 private final GraphicBuffer mSnapshot; 2263 private final int mOrientation; 2264 private final Rect mContentInsets; 2265 private final boolean mReducedResolution; 2266 private final float mScale; 2267 2268 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2269 boolean reducedResolution, float scale) { 2270 mSnapshot = snapshot; 2271 mOrientation = orientation; 2272 mContentInsets = new Rect(contentInsets); 2273 mReducedResolution = reducedResolution; 2274 mScale = scale; 2275 } 2276 2277 private TaskSnapshot(Parcel source) { 2278 mSnapshot = source.readParcelable(null /* classLoader */); 2279 mOrientation = source.readInt(); 2280 mContentInsets = source.readParcelable(null /* classLoader */); 2281 mReducedResolution = source.readBoolean(); 2282 mScale = source.readFloat(); 2283 } 2284 2285 /** 2286 * @return The graphic buffer representing the screenshot. 2287 */ 2288 public GraphicBuffer getSnapshot() { 2289 return mSnapshot; 2290 } 2291 2292 /** 2293 * @return The screen orientation the screenshot was taken in. 2294 */ 2295 public int getOrientation() { 2296 return mOrientation; 2297 } 2298 2299 /** 2300 * @return The system/content insets on the snapshot. These can be clipped off in order to 2301 * remove any areas behind system bars in the snapshot. 2302 */ 2303 public Rect getContentInsets() { 2304 return mContentInsets; 2305 } 2306 2307 /** 2308 * @return Whether this snapshot is a down-sampled version of the full resolution. 2309 */ 2310 public boolean isReducedResolution() { 2311 return mReducedResolution; 2312 } 2313 2314 /** 2315 * @return The scale this snapshot was taken in. 2316 */ 2317 public float getScale() { 2318 return mScale; 2319 } 2320 2321 @Override 2322 public int describeContents() { 2323 return 0; 2324 } 2325 2326 @Override 2327 public void writeToParcel(Parcel dest, int flags) { 2328 dest.writeParcelable(mSnapshot, 0); 2329 dest.writeInt(mOrientation); 2330 dest.writeParcelable(mContentInsets, 0); 2331 dest.writeBoolean(mReducedResolution); 2332 dest.writeFloat(mScale); 2333 } 2334 2335 @Override 2336 public String toString() { 2337 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2338 + " mContentInsets=" + mContentInsets.toShortString() 2339 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2340 } 2341 2342 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2343 public TaskSnapshot createFromParcel(Parcel source) { 2344 return new TaskSnapshot(source); 2345 } 2346 public TaskSnapshot[] newArray(int size) { 2347 return new TaskSnapshot[size]; 2348 } 2349 }; 2350 } 2351 2352 /** @hide */ 2353 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2354 try { 2355 return getService().getTaskThumbnail(id); 2356 } catch (RemoteException e) { 2357 throw e.rethrowFromSystemServer(); 2358 } 2359 } 2360 2361 /** 2362 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2363 * activity along with the task, so it is positioned immediately behind 2364 * the task. 2365 */ 2366 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2367 2368 /** 2369 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2370 * user-instigated action, so the current activity will not receive a 2371 * hint that the user is leaving. 2372 */ 2373 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2374 2375 /** 2376 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2377 * with a null options argument. 2378 * 2379 * @param taskId The identifier of the task to be moved, as found in 2380 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2381 * @param flags Additional operational flags, 0 or more of 2382 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2383 */ 2384 public void moveTaskToFront(int taskId, int flags) { 2385 moveTaskToFront(taskId, flags, null); 2386 } 2387 2388 /** 2389 * Ask that the task associated with a given task ID be moved to the 2390 * front of the stack, so it is now visible to the user. Requires that 2391 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2392 * or a SecurityException will be thrown. 2393 * 2394 * @param taskId The identifier of the task to be moved, as found in 2395 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2396 * @param flags Additional operational flags, 0 or more of 2397 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2398 * @param options Additional options for the operation, either null or 2399 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2400 * Context.startActivity(Intent, Bundle)}. 2401 */ 2402 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2403 try { 2404 getService().moveTaskToFront(taskId, flags, options); 2405 } catch (RemoteException e) { 2406 throw e.rethrowFromSystemServer(); 2407 } 2408 } 2409 2410 /** 2411 * Information you can retrieve about a particular Service that is 2412 * currently running in the system. 2413 */ 2414 public static class RunningServiceInfo implements Parcelable { 2415 /** 2416 * The service component. 2417 */ 2418 public ComponentName service; 2419 2420 /** 2421 * If non-zero, this is the process the service is running in. 2422 */ 2423 public int pid; 2424 2425 /** 2426 * The UID that owns this service. 2427 */ 2428 public int uid; 2429 2430 /** 2431 * The name of the process this service runs in. 2432 */ 2433 public String process; 2434 2435 /** 2436 * Set to true if the service has asked to run as a foreground process. 2437 */ 2438 public boolean foreground; 2439 2440 /** 2441 * The time when the service was first made active, either by someone 2442 * starting or binding to it. This 2443 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2444 */ 2445 public long activeSince; 2446 2447 /** 2448 * Set to true if this service has been explicitly started. 2449 */ 2450 public boolean started; 2451 2452 /** 2453 * Number of clients connected to the service. 2454 */ 2455 public int clientCount; 2456 2457 /** 2458 * Number of times the service's process has crashed while the service 2459 * is running. 2460 */ 2461 public int crashCount; 2462 2463 /** 2464 * The time when there was last activity in the service (either 2465 * explicit requests to start it or clients binding to it). This 2466 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2467 */ 2468 public long lastActivityTime; 2469 2470 /** 2471 * If non-zero, this service is not currently running, but scheduled to 2472 * restart at the given time. 2473 */ 2474 public long restarting; 2475 2476 /** 2477 * Bit for {@link #flags}: set if this service has been 2478 * explicitly started. 2479 */ 2480 public static final int FLAG_STARTED = 1<<0; 2481 2482 /** 2483 * Bit for {@link #flags}: set if the service has asked to 2484 * run as a foreground process. 2485 */ 2486 public static final int FLAG_FOREGROUND = 1<<1; 2487 2488 /** 2489 * Bit for {@link #flags}: set if the service is running in a 2490 * core system process. 2491 */ 2492 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2493 2494 /** 2495 * Bit for {@link #flags}: set if the service is running in a 2496 * persistent process. 2497 */ 2498 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2499 2500 /** 2501 * Running flags. 2502 */ 2503 public int flags; 2504 2505 /** 2506 * For special services that are bound to by system code, this is 2507 * the package that holds the binding. 2508 */ 2509 public String clientPackage; 2510 2511 /** 2512 * For special services that are bound to by system code, this is 2513 * a string resource providing a user-visible label for who the 2514 * client is. 2515 */ 2516 public int clientLabel; 2517 2518 public RunningServiceInfo() { 2519 } 2520 2521 public int describeContents() { 2522 return 0; 2523 } 2524 2525 public void writeToParcel(Parcel dest, int flags) { 2526 ComponentName.writeToParcel(service, dest); 2527 dest.writeInt(pid); 2528 dest.writeInt(uid); 2529 dest.writeString(process); 2530 dest.writeInt(foreground ? 1 : 0); 2531 dest.writeLong(activeSince); 2532 dest.writeInt(started ? 1 : 0); 2533 dest.writeInt(clientCount); 2534 dest.writeInt(crashCount); 2535 dest.writeLong(lastActivityTime); 2536 dest.writeLong(restarting); 2537 dest.writeInt(this.flags); 2538 dest.writeString(clientPackage); 2539 dest.writeInt(clientLabel); 2540 } 2541 2542 public void readFromParcel(Parcel source) { 2543 service = ComponentName.readFromParcel(source); 2544 pid = source.readInt(); 2545 uid = source.readInt(); 2546 process = source.readString(); 2547 foreground = source.readInt() != 0; 2548 activeSince = source.readLong(); 2549 started = source.readInt() != 0; 2550 clientCount = source.readInt(); 2551 crashCount = source.readInt(); 2552 lastActivityTime = source.readLong(); 2553 restarting = source.readLong(); 2554 flags = source.readInt(); 2555 clientPackage = source.readString(); 2556 clientLabel = source.readInt(); 2557 } 2558 2559 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2560 public RunningServiceInfo createFromParcel(Parcel source) { 2561 return new RunningServiceInfo(source); 2562 } 2563 public RunningServiceInfo[] newArray(int size) { 2564 return new RunningServiceInfo[size]; 2565 } 2566 }; 2567 2568 private RunningServiceInfo(Parcel source) { 2569 readFromParcel(source); 2570 } 2571 } 2572 2573 /** 2574 * Return a list of the services that are currently running. 2575 * 2576 * <p><b>Note: this method is only intended for debugging or implementing 2577 * service management type user interfaces.</b></p> 2578 * 2579 * @param maxNum The maximum number of entries to return in the list. The 2580 * actual number returned may be smaller, depending on how many services 2581 * are running. 2582 * 2583 * @return Returns a list of RunningServiceInfo records describing each of 2584 * the running tasks. 2585 */ 2586 public List<RunningServiceInfo> getRunningServices(int maxNum) 2587 throws SecurityException { 2588 try { 2589 return getService() 2590 .getServices(maxNum, 0); 2591 } catch (RemoteException e) { 2592 throw e.rethrowFromSystemServer(); 2593 } 2594 } 2595 2596 /** 2597 * Returns a PendingIntent you can start to show a control panel for the 2598 * given running service. If the service does not have a control panel, 2599 * null is returned. 2600 */ 2601 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2602 throws SecurityException { 2603 try { 2604 return getService() 2605 .getRunningServiceControlPanel(service); 2606 } catch (RemoteException e) { 2607 throw e.rethrowFromSystemServer(); 2608 } 2609 } 2610 2611 /** 2612 * Information you can retrieve about the available memory through 2613 * {@link ActivityManager#getMemoryInfo}. 2614 */ 2615 public static class MemoryInfo implements Parcelable { 2616 /** 2617 * The available memory on the system. This number should not 2618 * be considered absolute: due to the nature of the kernel, a significant 2619 * portion of this memory is actually in use and needed for the overall 2620 * system to run well. 2621 */ 2622 public long availMem; 2623 2624 /** 2625 * The total memory accessible by the kernel. This is basically the 2626 * RAM size of the device, not including below-kernel fixed allocations 2627 * like DMA buffers, RAM for the baseband CPU, etc. 2628 */ 2629 public long totalMem; 2630 2631 /** 2632 * The threshold of {@link #availMem} at which we consider memory to be 2633 * low and start killing background services and other non-extraneous 2634 * processes. 2635 */ 2636 public long threshold; 2637 2638 /** 2639 * Set to true if the system considers itself to currently be in a low 2640 * memory situation. 2641 */ 2642 public boolean lowMemory; 2643 2644 /** @hide */ 2645 public long hiddenAppThreshold; 2646 /** @hide */ 2647 public long secondaryServerThreshold; 2648 /** @hide */ 2649 public long visibleAppThreshold; 2650 /** @hide */ 2651 public long foregroundAppThreshold; 2652 2653 public MemoryInfo() { 2654 } 2655 2656 public int describeContents() { 2657 return 0; 2658 } 2659 2660 public void writeToParcel(Parcel dest, int flags) { 2661 dest.writeLong(availMem); 2662 dest.writeLong(totalMem); 2663 dest.writeLong(threshold); 2664 dest.writeInt(lowMemory ? 1 : 0); 2665 dest.writeLong(hiddenAppThreshold); 2666 dest.writeLong(secondaryServerThreshold); 2667 dest.writeLong(visibleAppThreshold); 2668 dest.writeLong(foregroundAppThreshold); 2669 } 2670 2671 public void readFromParcel(Parcel source) { 2672 availMem = source.readLong(); 2673 totalMem = source.readLong(); 2674 threshold = source.readLong(); 2675 lowMemory = source.readInt() != 0; 2676 hiddenAppThreshold = source.readLong(); 2677 secondaryServerThreshold = source.readLong(); 2678 visibleAppThreshold = source.readLong(); 2679 foregroundAppThreshold = source.readLong(); 2680 } 2681 2682 public static final Creator<MemoryInfo> CREATOR 2683 = new Creator<MemoryInfo>() { 2684 public MemoryInfo createFromParcel(Parcel source) { 2685 return new MemoryInfo(source); 2686 } 2687 public MemoryInfo[] newArray(int size) { 2688 return new MemoryInfo[size]; 2689 } 2690 }; 2691 2692 private MemoryInfo(Parcel source) { 2693 readFromParcel(source); 2694 } 2695 } 2696 2697 /** 2698 * Return general information about the memory state of the system. This 2699 * can be used to help decide how to manage your own memory, though note 2700 * that polling is not recommended and 2701 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2702 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2703 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2704 * level of your process as needed, which gives a better hint for how to 2705 * manage its memory. 2706 */ 2707 public void getMemoryInfo(MemoryInfo outInfo) { 2708 try { 2709 getService().getMemoryInfo(outInfo); 2710 } catch (RemoteException e) { 2711 throw e.rethrowFromSystemServer(); 2712 } 2713 } 2714 2715 /** 2716 * Information you can retrieve about an ActivityStack in the system. 2717 * @hide 2718 */ 2719 public static class StackInfo implements Parcelable { 2720 public int stackId; 2721 public Rect bounds = new Rect(); 2722 public int[] taskIds; 2723 public String[] taskNames; 2724 public Rect[] taskBounds; 2725 public int[] taskUserIds; 2726 public ComponentName topActivity; 2727 public int displayId; 2728 public int userId; 2729 public boolean visible; 2730 // Index of the stack in the display's stack list, can be used for comparison of stack order 2731 public int position; 2732 2733 @Override 2734 public int describeContents() { 2735 return 0; 2736 } 2737 2738 @Override 2739 public void writeToParcel(Parcel dest, int flags) { 2740 dest.writeInt(stackId); 2741 dest.writeInt(bounds.left); 2742 dest.writeInt(bounds.top); 2743 dest.writeInt(bounds.right); 2744 dest.writeInt(bounds.bottom); 2745 dest.writeIntArray(taskIds); 2746 dest.writeStringArray(taskNames); 2747 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2748 dest.writeInt(boundsCount); 2749 for (int i = 0; i < boundsCount; i++) { 2750 dest.writeInt(taskBounds[i].left); 2751 dest.writeInt(taskBounds[i].top); 2752 dest.writeInt(taskBounds[i].right); 2753 dest.writeInt(taskBounds[i].bottom); 2754 } 2755 dest.writeIntArray(taskUserIds); 2756 dest.writeInt(displayId); 2757 dest.writeInt(userId); 2758 dest.writeInt(visible ? 1 : 0); 2759 dest.writeInt(position); 2760 if (topActivity != null) { 2761 dest.writeInt(1); 2762 topActivity.writeToParcel(dest, 0); 2763 } else { 2764 dest.writeInt(0); 2765 } 2766 } 2767 2768 public void readFromParcel(Parcel source) { 2769 stackId = source.readInt(); 2770 bounds = new Rect( 2771 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2772 taskIds = source.createIntArray(); 2773 taskNames = source.createStringArray(); 2774 final int boundsCount = source.readInt(); 2775 if (boundsCount > 0) { 2776 taskBounds = new Rect[boundsCount]; 2777 for (int i = 0; i < boundsCount; i++) { 2778 taskBounds[i] = new Rect(); 2779 taskBounds[i].set( 2780 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2781 } 2782 } else { 2783 taskBounds = null; 2784 } 2785 taskUserIds = source.createIntArray(); 2786 displayId = source.readInt(); 2787 userId = source.readInt(); 2788 visible = source.readInt() > 0; 2789 position = source.readInt(); 2790 if (source.readInt() > 0) { 2791 topActivity = ComponentName.readFromParcel(source); 2792 } 2793 } 2794 2795 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2796 @Override 2797 public StackInfo createFromParcel(Parcel source) { 2798 return new StackInfo(source); 2799 } 2800 @Override 2801 public StackInfo[] newArray(int size) { 2802 return new StackInfo[size]; 2803 } 2804 }; 2805 2806 public StackInfo() { 2807 } 2808 2809 private StackInfo(Parcel source) { 2810 readFromParcel(source); 2811 } 2812 2813 public String toString(String prefix) { 2814 StringBuilder sb = new StringBuilder(256); 2815 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2816 sb.append(" bounds="); sb.append(bounds.toShortString()); 2817 sb.append(" displayId="); sb.append(displayId); 2818 sb.append(" userId="); sb.append(userId); 2819 sb.append("\n"); 2820 prefix = prefix + " "; 2821 for (int i = 0; i < taskIds.length; ++i) { 2822 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2823 sb.append(": "); sb.append(taskNames[i]); 2824 if (taskBounds != null) { 2825 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2826 } 2827 sb.append(" userId=").append(taskUserIds[i]); 2828 sb.append(" visible=").append(visible); 2829 if (topActivity != null) { 2830 sb.append(" topActivity=").append(topActivity); 2831 } 2832 sb.append("\n"); 2833 } 2834 return sb.toString(); 2835 } 2836 2837 @Override 2838 public String toString() { 2839 return toString(""); 2840 } 2841 } 2842 2843 /** 2844 * @hide 2845 */ 2846 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2847 try { 2848 return getService().clearApplicationUserData(packageName, 2849 observer, UserHandle.myUserId()); 2850 } catch (RemoteException e) { 2851 throw e.rethrowFromSystemServer(); 2852 } 2853 } 2854 2855 /** 2856 * Permits an application to erase its own data from disk. This is equivalent to 2857 * the user choosing to clear the app's data from within the device settings UI. It 2858 * erases all dynamic data associated with the app -- its private data and data in its 2859 * private area on external storage -- but does not remove the installed application 2860 * itself, nor any OBB files. 2861 * 2862 * @return {@code true} if the application successfully requested that the application's 2863 * data be erased; {@code false} otherwise. 2864 */ 2865 public boolean clearApplicationUserData() { 2866 return clearApplicationUserData(mContext.getPackageName(), null); 2867 } 2868 2869 2870 /** 2871 * Permits an application to get the persistent URI permissions granted to another. 2872 * 2873 * <p>Typically called by Settings. 2874 * 2875 * @param packageName application to look for the granted permissions 2876 * @return list of granted URI permissions 2877 * 2878 * @hide 2879 */ 2880 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2881 try { 2882 return getService().getGrantedUriPermissions(packageName, 2883 UserHandle.myUserId()); 2884 } catch (RemoteException e) { 2885 throw e.rethrowFromSystemServer(); 2886 } 2887 } 2888 2889 /** 2890 * Permits an application to clear the persistent URI permissions granted to another. 2891 * 2892 * <p>Typically called by Settings. 2893 * 2894 * @param packageName application to clear its granted permissions 2895 * 2896 * @hide 2897 */ 2898 public void clearGrantedUriPermissions(String packageName) { 2899 try { 2900 getService().clearGrantedUriPermissions(packageName, 2901 UserHandle.myUserId()); 2902 } catch (RemoteException e) { 2903 throw e.rethrowFromSystemServer(); 2904 } 2905 } 2906 2907 /** 2908 * Information you can retrieve about any processes that are in an error condition. 2909 */ 2910 public static class ProcessErrorStateInfo implements Parcelable { 2911 /** 2912 * Condition codes 2913 */ 2914 public static final int NO_ERROR = 0; 2915 public static final int CRASHED = 1; 2916 public static final int NOT_RESPONDING = 2; 2917 2918 /** 2919 * The condition that the process is in. 2920 */ 2921 public int condition; 2922 2923 /** 2924 * The process name in which the crash or error occurred. 2925 */ 2926 public String processName; 2927 2928 /** 2929 * The pid of this process; 0 if none 2930 */ 2931 public int pid; 2932 2933 /** 2934 * The kernel user-ID that has been assigned to this process; 2935 * currently this is not a unique ID (multiple applications can have 2936 * the same uid). 2937 */ 2938 public int uid; 2939 2940 /** 2941 * The activity name associated with the error, if known. May be null. 2942 */ 2943 public String tag; 2944 2945 /** 2946 * A short message describing the error condition. 2947 */ 2948 public String shortMsg; 2949 2950 /** 2951 * A long message describing the error condition. 2952 */ 2953 public String longMsg; 2954 2955 /** 2956 * The stack trace where the error originated. May be null. 2957 */ 2958 public String stackTrace; 2959 2960 /** 2961 * to be deprecated: This value will always be null. 2962 */ 2963 public byte[] crashData = null; 2964 2965 public ProcessErrorStateInfo() { 2966 } 2967 2968 @Override 2969 public int describeContents() { 2970 return 0; 2971 } 2972 2973 @Override 2974 public void writeToParcel(Parcel dest, int flags) { 2975 dest.writeInt(condition); 2976 dest.writeString(processName); 2977 dest.writeInt(pid); 2978 dest.writeInt(uid); 2979 dest.writeString(tag); 2980 dest.writeString(shortMsg); 2981 dest.writeString(longMsg); 2982 dest.writeString(stackTrace); 2983 } 2984 2985 public void readFromParcel(Parcel source) { 2986 condition = source.readInt(); 2987 processName = source.readString(); 2988 pid = source.readInt(); 2989 uid = source.readInt(); 2990 tag = source.readString(); 2991 shortMsg = source.readString(); 2992 longMsg = source.readString(); 2993 stackTrace = source.readString(); 2994 } 2995 2996 public static final Creator<ProcessErrorStateInfo> CREATOR = 2997 new Creator<ProcessErrorStateInfo>() { 2998 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2999 return new ProcessErrorStateInfo(source); 3000 } 3001 public ProcessErrorStateInfo[] newArray(int size) { 3002 return new ProcessErrorStateInfo[size]; 3003 } 3004 }; 3005 3006 private ProcessErrorStateInfo(Parcel source) { 3007 readFromParcel(source); 3008 } 3009 } 3010 3011 /** 3012 * Returns a list of any processes that are currently in an error condition. The result 3013 * will be null if all processes are running properly at this time. 3014 * 3015 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3016 * current error conditions (it will not return an empty list). This list ordering is not 3017 * specified. 3018 */ 3019 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3020 try { 3021 return getService().getProcessesInErrorState(); 3022 } catch (RemoteException e) { 3023 throw e.rethrowFromSystemServer(); 3024 } 3025 } 3026 3027 /** 3028 * Information you can retrieve about a running process. 3029 */ 3030 public static class RunningAppProcessInfo implements Parcelable { 3031 /** 3032 * The name of the process that this object is associated with 3033 */ 3034 public String processName; 3035 3036 /** 3037 * The pid of this process; 0 if none 3038 */ 3039 public int pid; 3040 3041 /** 3042 * The user id of this process. 3043 */ 3044 public int uid; 3045 3046 /** 3047 * All packages that have been loaded into the process. 3048 */ 3049 public String pkgList[]; 3050 3051 /** 3052 * Constant for {@link #flags}: this is an app that is unable to 3053 * correctly save its state when going to the background, 3054 * so it can not be killed while in the background. 3055 * @hide 3056 */ 3057 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3058 3059 /** 3060 * Constant for {@link #flags}: this process is associated with a 3061 * persistent system app. 3062 * @hide 3063 */ 3064 public static final int FLAG_PERSISTENT = 1<<1; 3065 3066 /** 3067 * Constant for {@link #flags}: this process is associated with a 3068 * persistent system app. 3069 * @hide 3070 */ 3071 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3072 3073 /** 3074 * Flags of information. May be any of 3075 * {@link #FLAG_CANT_SAVE_STATE}. 3076 * @hide 3077 */ 3078 public int flags; 3079 3080 /** 3081 * Last memory trim level reported to the process: corresponds to 3082 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3083 * ComponentCallbacks2.onTrimMemory(int)}. 3084 */ 3085 public int lastTrimLevel; 3086 3087 /** 3088 * Constant for {@link #importance}: This process is running the 3089 * foreground UI; that is, it is the thing currently at the top of the screen 3090 * that the user is interacting with. 3091 */ 3092 public static final int IMPORTANCE_FOREGROUND = 100; 3093 3094 /** 3095 * Constant for {@link #importance}: This process is running a foreground 3096 * service, for example to perform music playback even while the user is 3097 * not immediately in the app. This generally indicates that the process 3098 * is doing something the user actively cares about. 3099 */ 3100 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3101 3102 /** 3103 * Constant for {@link #importance}: This process is running the foreground 3104 * UI, but the device is asleep so it is not visible to the user. This means 3105 * the user is not really aware of the process, because they can not see or 3106 * interact with it, but it is quite important because it what they expect to 3107 * return to once unlocking the device. 3108 */ 3109 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3110 3111 /** 3112 * Constant for {@link #importance}: This process is running something 3113 * that is actively visible to the user, though not in the immediate 3114 * foreground. This may be running a window that is behind the current 3115 * foreground (so paused and with its state saved, not interacting with 3116 * the user, but visible to them to some degree); it may also be running 3117 * other services under the system's control that it inconsiders important. 3118 */ 3119 public static final int IMPORTANCE_VISIBLE = 200; 3120 3121 /** 3122 * Constant for {@link #importance}: This process is not something the user 3123 * is directly aware of, but is otherwise perceptable to them to some degree. 3124 */ 3125 public static final int IMPORTANCE_PERCEPTIBLE = 130; 3126 3127 /** 3128 * Constant for {@link #importance}: This process is running an 3129 * application that can not save its state, and thus can't be killed 3130 * while in the background. 3131 * @hide 3132 */ 3133 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 3134 3135 /** 3136 * Constant for {@link #importance}: This process is contains services 3137 * that should remain running. These are background services apps have 3138 * started, not something the user is aware of, so they may be killed by 3139 * the system relatively freely (though it is generally desired that they 3140 * stay running as long as they want to). 3141 */ 3142 public static final int IMPORTANCE_SERVICE = 300; 3143 3144 /** 3145 * Constant for {@link #importance}: This process process contains 3146 * cached code that is expendable, not actively running any app components 3147 * we care about. 3148 */ 3149 public static final int IMPORTANCE_CACHED = 400; 3150 3151 /** 3152 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3153 */ 3154 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3155 3156 /** 3157 * Constant for {@link #importance}: This process is empty of any 3158 * actively running code. 3159 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3160 */ 3161 @Deprecated 3162 public static final int IMPORTANCE_EMPTY = 500; 3163 3164 /** 3165 * Constant for {@link #importance}: This process does not exist. 3166 */ 3167 public static final int IMPORTANCE_GONE = 1000; 3168 3169 /** @hide */ 3170 public static int procStateToImportance(int procState) { 3171 if (procState == PROCESS_STATE_NONEXISTENT) { 3172 return IMPORTANCE_GONE; 3173 } else if (procState >= PROCESS_STATE_HOME) { 3174 return IMPORTANCE_CACHED; 3175 } else if (procState >= PROCESS_STATE_SERVICE) { 3176 return IMPORTANCE_SERVICE; 3177 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3178 return IMPORTANCE_CANT_SAVE_STATE; 3179 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3180 return IMPORTANCE_PERCEPTIBLE; 3181 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3182 return IMPORTANCE_VISIBLE; 3183 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3184 return IMPORTANCE_TOP_SLEEPING; 3185 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3186 return IMPORTANCE_FOREGROUND_SERVICE; 3187 } else { 3188 return IMPORTANCE_FOREGROUND; 3189 } 3190 } 3191 3192 /** @hide */ 3193 public static int importanceToProcState(int importance) { 3194 if (importance == IMPORTANCE_GONE) { 3195 return PROCESS_STATE_NONEXISTENT; 3196 } else if (importance >= IMPORTANCE_CACHED) { 3197 return PROCESS_STATE_HOME; 3198 } else if (importance >= IMPORTANCE_SERVICE) { 3199 return PROCESS_STATE_SERVICE; 3200 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3201 return PROCESS_STATE_HEAVY_WEIGHT; 3202 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3203 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3204 } else if (importance >= IMPORTANCE_VISIBLE) { 3205 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3206 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3207 return PROCESS_STATE_TOP_SLEEPING; 3208 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3209 return PROCESS_STATE_FOREGROUND_SERVICE; 3210 } else { 3211 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3212 } 3213 } 3214 3215 /** 3216 * The relative importance level that the system places on this 3217 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3218 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, or 3219 * {@link #IMPORTANCE_CACHED}. These 3220 * constants are numbered so that "more important" values are always 3221 * smaller than "less important" values. 3222 */ 3223 public int importance; 3224 3225 /** 3226 * An additional ordering within a particular {@link #importance} 3227 * category, providing finer-grained information about the relative 3228 * utility of processes within a category. This number means nothing 3229 * except that a smaller values are more recently used (and thus 3230 * more important). Currently an LRU value is only maintained for 3231 * the {@link #IMPORTANCE_CACHED} category, though others may 3232 * be maintained in the future. 3233 */ 3234 public int lru; 3235 3236 /** 3237 * Constant for {@link #importanceReasonCode}: nothing special has 3238 * been specified for the reason for this level. 3239 */ 3240 public static final int REASON_UNKNOWN = 0; 3241 3242 /** 3243 * Constant for {@link #importanceReasonCode}: one of the application's 3244 * content providers is being used by another process. The pid of 3245 * the client process is in {@link #importanceReasonPid} and the 3246 * target provider in this process is in 3247 * {@link #importanceReasonComponent}. 3248 */ 3249 public static final int REASON_PROVIDER_IN_USE = 1; 3250 3251 /** 3252 * Constant for {@link #importanceReasonCode}: one of the application's 3253 * content providers is being used by another process. The pid of 3254 * the client process is in {@link #importanceReasonPid} and the 3255 * target provider in this process is in 3256 * {@link #importanceReasonComponent}. 3257 */ 3258 public static final int REASON_SERVICE_IN_USE = 2; 3259 3260 /** 3261 * The reason for {@link #importance}, if any. 3262 */ 3263 public int importanceReasonCode; 3264 3265 /** 3266 * For the specified values of {@link #importanceReasonCode}, this 3267 * is the process ID of the other process that is a client of this 3268 * process. This will be 0 if no other process is using this one. 3269 */ 3270 public int importanceReasonPid; 3271 3272 /** 3273 * For the specified values of {@link #importanceReasonCode}, this 3274 * is the name of the component that is being used in this process. 3275 */ 3276 public ComponentName importanceReasonComponent; 3277 3278 /** 3279 * When {@link #importanceReasonPid} is non-0, this is the importance 3280 * of the other pid. @hide 3281 */ 3282 public int importanceReasonImportance; 3283 3284 /** 3285 * Current process state, as per PROCESS_STATE_* constants. 3286 * @hide 3287 */ 3288 public int processState; 3289 3290 public RunningAppProcessInfo() { 3291 importance = IMPORTANCE_FOREGROUND; 3292 importanceReasonCode = REASON_UNKNOWN; 3293 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3294 } 3295 3296 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3297 processName = pProcessName; 3298 pid = pPid; 3299 pkgList = pArr; 3300 } 3301 3302 public int describeContents() { 3303 return 0; 3304 } 3305 3306 public void writeToParcel(Parcel dest, int flags) { 3307 dest.writeString(processName); 3308 dest.writeInt(pid); 3309 dest.writeInt(uid); 3310 dest.writeStringArray(pkgList); 3311 dest.writeInt(this.flags); 3312 dest.writeInt(lastTrimLevel); 3313 dest.writeInt(importance); 3314 dest.writeInt(lru); 3315 dest.writeInt(importanceReasonCode); 3316 dest.writeInt(importanceReasonPid); 3317 ComponentName.writeToParcel(importanceReasonComponent, dest); 3318 dest.writeInt(importanceReasonImportance); 3319 dest.writeInt(processState); 3320 } 3321 3322 public void readFromParcel(Parcel source) { 3323 processName = source.readString(); 3324 pid = source.readInt(); 3325 uid = source.readInt(); 3326 pkgList = source.readStringArray(); 3327 flags = source.readInt(); 3328 lastTrimLevel = source.readInt(); 3329 importance = source.readInt(); 3330 lru = source.readInt(); 3331 importanceReasonCode = source.readInt(); 3332 importanceReasonPid = source.readInt(); 3333 importanceReasonComponent = ComponentName.readFromParcel(source); 3334 importanceReasonImportance = source.readInt(); 3335 processState = source.readInt(); 3336 } 3337 3338 public static final Creator<RunningAppProcessInfo> CREATOR = 3339 new Creator<RunningAppProcessInfo>() { 3340 public RunningAppProcessInfo createFromParcel(Parcel source) { 3341 return new RunningAppProcessInfo(source); 3342 } 3343 public RunningAppProcessInfo[] newArray(int size) { 3344 return new RunningAppProcessInfo[size]; 3345 } 3346 }; 3347 3348 private RunningAppProcessInfo(Parcel source) { 3349 readFromParcel(source); 3350 } 3351 } 3352 3353 /** 3354 * Returns a list of application processes installed on external media 3355 * that are running on the device. 3356 * 3357 * <p><b>Note: this method is only intended for debugging or building 3358 * a user-facing process management UI.</b></p> 3359 * 3360 * @return Returns a list of ApplicationInfo records, or null if none 3361 * This list ordering is not specified. 3362 * @hide 3363 */ 3364 public List<ApplicationInfo> getRunningExternalApplications() { 3365 try { 3366 return getService().getRunningExternalApplications(); 3367 } catch (RemoteException e) { 3368 throw e.rethrowFromSystemServer(); 3369 } 3370 } 3371 3372 /** 3373 * Sets the memory trim mode for a process and schedules a memory trim operation. 3374 * 3375 * <p><b>Note: this method is only intended for testing framework.</b></p> 3376 * 3377 * @return Returns true if successful. 3378 * @hide 3379 */ 3380 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3381 try { 3382 return getService().setProcessMemoryTrimLevel(process, userId, 3383 level); 3384 } catch (RemoteException e) { 3385 throw e.rethrowFromSystemServer(); 3386 } 3387 } 3388 3389 /** 3390 * Returns a list of application processes that are running on the device. 3391 * 3392 * <p><b>Note: this method is only intended for debugging or building 3393 * a user-facing process management UI.</b></p> 3394 * 3395 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3396 * running processes (it will not return an empty list). This list ordering is not 3397 * specified. 3398 */ 3399 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3400 try { 3401 return getService().getRunningAppProcesses(); 3402 } catch (RemoteException e) { 3403 throw e.rethrowFromSystemServer(); 3404 } 3405 } 3406 3407 /** 3408 * Return the importance of a given package name, based on the processes that are 3409 * currently running. The return value is one of the importance constants defined 3410 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3411 * processes that this package has code running inside of. If there are no processes 3412 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3413 * @hide 3414 */ 3415 @SystemApi @TestApi 3416 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3417 public int getPackageImportance(String packageName) { 3418 try { 3419 int procState = getService().getPackageProcessState(packageName, 3420 mContext.getOpPackageName()); 3421 return RunningAppProcessInfo.procStateToImportance(procState); 3422 } catch (RemoteException e) { 3423 throw e.rethrowFromSystemServer(); 3424 } 3425 } 3426 3427 /** 3428 * Return the importance of a given uid, based on the processes that are 3429 * currently running. The return value is one of the importance constants defined 3430 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3431 * processes that this uid has running. If there are no processes 3432 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3433 * @hide 3434 */ 3435 @SystemApi @TestApi 3436 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3437 public int getUidImportance(int uid) { 3438 try { 3439 int procState = getService().getUidProcessState(uid, 3440 mContext.getOpPackageName()); 3441 return RunningAppProcessInfo.procStateToImportance(procState); 3442 } catch (RemoteException e) { 3443 throw e.rethrowFromSystemServer(); 3444 } 3445 } 3446 3447 /** 3448 * Callback to get reports about changes to the importance of a uid. Use with 3449 * {@link #addOnUidImportanceListener}. 3450 * @hide 3451 */ 3452 @SystemApi @TestApi 3453 public interface OnUidImportanceListener { 3454 /** 3455 * The importance if a given uid has changed. Will be one of the importance 3456 * values in {@link RunningAppProcessInfo}; 3457 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3458 * when the uid is no longer running at all. This callback will happen on a thread 3459 * from a thread pool, not the main UI thread. 3460 * @param uid The uid whose importance has changed. 3461 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3462 */ 3463 void onUidImportance(int uid, int importance); 3464 } 3465 3466 /** 3467 * Start monitoring changes to the imoportance of uids running in the system. 3468 * @param listener The listener callback that will receive change reports. 3469 * @param importanceCutpoint The level of importance in which the caller is interested 3470 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3471 * is used here, you will receive a call each time a uids importance transitions between 3472 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3473 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3474 * 3475 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3476 * permission to use this feature.</p> 3477 * 3478 * @throws IllegalArgumentException If the listener is already registered. 3479 * @throws SecurityException If the caller does not hold 3480 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3481 * @hide 3482 */ 3483 @SystemApi @TestApi 3484 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3485 int importanceCutpoint) { 3486 synchronized (this) { 3487 if (mImportanceListeners.containsKey(listener)) { 3488 throw new IllegalArgumentException("Listener already registered: " + listener); 3489 } 3490 // TODO: implement the cut point in the system process to avoid IPCs. 3491 UidObserver observer = new UidObserver(listener); 3492 try { 3493 getService().registerUidObserver(observer, 3494 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3495 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3496 mContext.getOpPackageName()); 3497 } catch (RemoteException e) { 3498 throw e.rethrowFromSystemServer(); 3499 } 3500 mImportanceListeners.put(listener, observer); 3501 } 3502 } 3503 3504 /** 3505 * Remove an importance listener that was previously registered with 3506 * {@link #addOnUidImportanceListener}. 3507 * 3508 * @throws IllegalArgumentException If the listener is not registered. 3509 * @hide 3510 */ 3511 @SystemApi @TestApi 3512 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3513 synchronized (this) { 3514 UidObserver observer = mImportanceListeners.remove(listener); 3515 if (observer == null) { 3516 throw new IllegalArgumentException("Listener not registered: " + listener); 3517 } 3518 try { 3519 getService().unregisterUidObserver(observer); 3520 } catch (RemoteException e) { 3521 throw e.rethrowFromSystemServer(); 3522 } 3523 } 3524 } 3525 3526 /** 3527 * Return global memory state information for the calling process. This 3528 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3529 * only fields that will be filled in are 3530 * {@link RunningAppProcessInfo#pid}, 3531 * {@link RunningAppProcessInfo#uid}, 3532 * {@link RunningAppProcessInfo#lastTrimLevel}, 3533 * {@link RunningAppProcessInfo#importance}, 3534 * {@link RunningAppProcessInfo#lru}, and 3535 * {@link RunningAppProcessInfo#importanceReasonCode}. 3536 */ 3537 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3538 try { 3539 getService().getMyMemoryState(outState); 3540 } catch (RemoteException e) { 3541 throw e.rethrowFromSystemServer(); 3542 } 3543 } 3544 3545 /** 3546 * Return information about the memory usage of one or more processes. 3547 * 3548 * <p><b>Note: this method is only intended for debugging or building 3549 * a user-facing process management UI.</b></p> 3550 * 3551 * @param pids The pids of the processes whose memory usage is to be 3552 * retrieved. 3553 * @return Returns an array of memory information, one for each 3554 * requested pid. 3555 */ 3556 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3557 try { 3558 return getService().getProcessMemoryInfo(pids); 3559 } catch (RemoteException e) { 3560 throw e.rethrowFromSystemServer(); 3561 } 3562 } 3563 3564 /** 3565 * @deprecated This is now just a wrapper for 3566 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3567 * is no longer available to applications because it allows them to 3568 * break other applications by removing their alarms, stopping their 3569 * services, etc. 3570 */ 3571 @Deprecated 3572 public void restartPackage(String packageName) { 3573 killBackgroundProcesses(packageName); 3574 } 3575 3576 /** 3577 * Have the system immediately kill all background processes associated 3578 * with the given package. This is the same as the kernel killing those 3579 * processes to reclaim memory; the system will take care of restarting 3580 * these processes in the future as needed. 3581 * 3582 * <p>You must hold the permission 3583 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3584 * call this method. 3585 * 3586 * @param packageName The name of the package whose processes are to 3587 * be killed. 3588 */ 3589 public void killBackgroundProcesses(String packageName) { 3590 try { 3591 getService().killBackgroundProcesses(packageName, 3592 UserHandle.myUserId()); 3593 } catch (RemoteException e) { 3594 throw e.rethrowFromSystemServer(); 3595 } 3596 } 3597 3598 /** 3599 * Kills the specified UID. 3600 * @param uid The UID to kill. 3601 * @param reason The reason for the kill. 3602 * 3603 * @hide 3604 */ 3605 @SystemApi 3606 @RequiresPermission(Manifest.permission.KILL_UID) 3607 public void killUid(int uid, String reason) { 3608 try { 3609 getService().killUid(UserHandle.getAppId(uid), 3610 UserHandle.getUserId(uid), reason); 3611 } catch (RemoteException e) { 3612 throw e.rethrowFromSystemServer(); 3613 } 3614 } 3615 3616 /** 3617 * Have the system perform a force stop of everything associated with 3618 * the given application package. All processes that share its uid 3619 * will be killed, all services it has running stopped, all activities 3620 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3621 * broadcast will be sent, so that any of its registered alarms can 3622 * be stopped, notifications removed, etc. 3623 * 3624 * <p>You must hold the permission 3625 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3626 * call this method. 3627 * 3628 * @param packageName The name of the package to be stopped. 3629 * @param userId The user for which the running package is to be stopped. 3630 * 3631 * @hide This is not available to third party applications due to 3632 * it allowing them to break other applications by stopping their 3633 * services, removing their alarms, etc. 3634 */ 3635 public void forceStopPackageAsUser(String packageName, int userId) { 3636 try { 3637 getService().forceStopPackage(packageName, userId); 3638 } catch (RemoteException e) { 3639 throw e.rethrowFromSystemServer(); 3640 } 3641 } 3642 3643 /** 3644 * @see #forceStopPackageAsUser(String, int) 3645 * @hide 3646 */ 3647 @SystemApi 3648 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3649 public void forceStopPackage(String packageName) { 3650 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3651 } 3652 3653 /** 3654 * Get the device configuration attributes. 3655 */ 3656 public ConfigurationInfo getDeviceConfigurationInfo() { 3657 try { 3658 return getService().getDeviceConfigurationInfo(); 3659 } catch (RemoteException e) { 3660 throw e.rethrowFromSystemServer(); 3661 } 3662 } 3663 3664 /** 3665 * Get the preferred density of icons for the launcher. This is used when 3666 * custom drawables are created (e.g., for shortcuts). 3667 * 3668 * @return density in terms of DPI 3669 */ 3670 public int getLauncherLargeIconDensity() { 3671 final Resources res = mContext.getResources(); 3672 final int density = res.getDisplayMetrics().densityDpi; 3673 final int sw = res.getConfiguration().smallestScreenWidthDp; 3674 3675 if (sw < 600) { 3676 // Smaller than approx 7" tablets, use the regular icon size. 3677 return density; 3678 } 3679 3680 switch (density) { 3681 case DisplayMetrics.DENSITY_LOW: 3682 return DisplayMetrics.DENSITY_MEDIUM; 3683 case DisplayMetrics.DENSITY_MEDIUM: 3684 return DisplayMetrics.DENSITY_HIGH; 3685 case DisplayMetrics.DENSITY_TV: 3686 return DisplayMetrics.DENSITY_XHIGH; 3687 case DisplayMetrics.DENSITY_HIGH: 3688 return DisplayMetrics.DENSITY_XHIGH; 3689 case DisplayMetrics.DENSITY_XHIGH: 3690 return DisplayMetrics.DENSITY_XXHIGH; 3691 case DisplayMetrics.DENSITY_XXHIGH: 3692 return DisplayMetrics.DENSITY_XHIGH * 2; 3693 default: 3694 // The density is some abnormal value. Return some other 3695 // abnormal value that is a reasonable scaling of it. 3696 return (int)((density*1.5f)+.5f); 3697 } 3698 } 3699 3700 /** 3701 * Get the preferred launcher icon size. This is used when custom drawables 3702 * are created (e.g., for shortcuts). 3703 * 3704 * @return dimensions of square icons in terms of pixels 3705 */ 3706 public int getLauncherLargeIconSize() { 3707 return getLauncherLargeIconSizeInner(mContext); 3708 } 3709 3710 static int getLauncherLargeIconSizeInner(Context context) { 3711 final Resources res = context.getResources(); 3712 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3713 final int sw = res.getConfiguration().smallestScreenWidthDp; 3714 3715 if (sw < 600) { 3716 // Smaller than approx 7" tablets, use the regular icon size. 3717 return size; 3718 } 3719 3720 final int density = res.getDisplayMetrics().densityDpi; 3721 3722 switch (density) { 3723 case DisplayMetrics.DENSITY_LOW: 3724 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3725 case DisplayMetrics.DENSITY_MEDIUM: 3726 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3727 case DisplayMetrics.DENSITY_TV: 3728 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3729 case DisplayMetrics.DENSITY_HIGH: 3730 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3731 case DisplayMetrics.DENSITY_XHIGH: 3732 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3733 case DisplayMetrics.DENSITY_XXHIGH: 3734 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3735 default: 3736 // The density is some abnormal value. Return some other 3737 // abnormal value that is a reasonable scaling of it. 3738 return (int)((size*1.5f) + .5f); 3739 } 3740 } 3741 3742 /** 3743 * Returns "true" if the user interface is currently being messed with 3744 * by a monkey. 3745 */ 3746 public static boolean isUserAMonkey() { 3747 try { 3748 return getService().isUserAMonkey(); 3749 } catch (RemoteException e) { 3750 throw e.rethrowFromSystemServer(); 3751 } 3752 } 3753 3754 /** 3755 * Returns "true" if device is running in a test harness. 3756 */ 3757 public static boolean isRunningInTestHarness() { 3758 return SystemProperties.getBoolean("ro.test_harness", false); 3759 } 3760 3761 /** 3762 * Returns the launch count of each installed package. 3763 * 3764 * @hide 3765 */ 3766 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3767 try { 3768 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3769 ServiceManager.getService("usagestats")); 3770 if (usageStatsService == null) { 3771 return new HashMap<String, Integer>(); 3772 } 3773 3774 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3775 ActivityThread.currentPackageName()); 3776 if (allPkgUsageStats == null) { 3777 return new HashMap<String, Integer>(); 3778 } 3779 3780 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3781 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3782 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3783 } 3784 3785 return launchCounts; 3786 } catch (RemoteException e) { 3787 Log.w(TAG, "Could not query launch counts", e); 3788 return new HashMap<String, Integer>(); 3789 } 3790 }*/ 3791 3792 /** @hide */ 3793 public static int checkComponentPermission(String permission, int uid, 3794 int owningUid, boolean exported) { 3795 // Root, system server get to do everything. 3796 final int appId = UserHandle.getAppId(uid); 3797 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3798 return PackageManager.PERMISSION_GRANTED; 3799 } 3800 // Isolated processes don't get any permissions. 3801 if (UserHandle.isIsolated(uid)) { 3802 return PackageManager.PERMISSION_DENIED; 3803 } 3804 // If there is a uid that owns whatever is being accessed, it has 3805 // blanket access to it regardless of the permissions it requires. 3806 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3807 return PackageManager.PERMISSION_GRANTED; 3808 } 3809 // If the target is not exported, then nobody else can get to it. 3810 if (!exported) { 3811 /* 3812 RuntimeException here = new RuntimeException("here"); 3813 here.fillInStackTrace(); 3814 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3815 here); 3816 */ 3817 return PackageManager.PERMISSION_DENIED; 3818 } 3819 if (permission == null) { 3820 return PackageManager.PERMISSION_GRANTED; 3821 } 3822 try { 3823 return AppGlobals.getPackageManager() 3824 .checkUidPermission(permission, uid); 3825 } catch (RemoteException e) { 3826 throw e.rethrowFromSystemServer(); 3827 } 3828 } 3829 3830 /** @hide */ 3831 public static int checkUidPermission(String permission, int uid) { 3832 try { 3833 return AppGlobals.getPackageManager() 3834 .checkUidPermission(permission, uid); 3835 } catch (RemoteException e) { 3836 throw e.rethrowFromSystemServer(); 3837 } 3838 } 3839 3840 /** 3841 * @hide 3842 * Helper for dealing with incoming user arguments to system service calls. 3843 * Takes care of checking permissions and converting USER_CURRENT to the 3844 * actual current user. 3845 * 3846 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3847 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3848 * @param userId The user id argument supplied by the caller -- this is the user 3849 * they want to run as. 3850 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3851 * to get a USER_ALL returned and deal with it correctly. If false, 3852 * an exception will be thrown if USER_ALL is supplied. 3853 * @param requireFull If true, the caller must hold 3854 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3855 * different user than their current process; otherwise they must hold 3856 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3857 * @param name Optional textual name of the incoming call; only for generating error messages. 3858 * @param callerPackage Optional package name of caller; only for error messages. 3859 * 3860 * @return Returns the user ID that the call should run as. Will always be a concrete 3861 * user number, unless <var>allowAll</var> is true in which case it could also be 3862 * USER_ALL. 3863 */ 3864 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3865 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3866 if (UserHandle.getUserId(callingUid) == userId) { 3867 return userId; 3868 } 3869 try { 3870 return getService().handleIncomingUser(callingPid, 3871 callingUid, userId, allowAll, requireFull, name, callerPackage); 3872 } catch (RemoteException e) { 3873 throw e.rethrowFromSystemServer(); 3874 } 3875 } 3876 3877 /** 3878 * Gets the userId of the current foreground user. Requires system permissions. 3879 * @hide 3880 */ 3881 @SystemApi 3882 public static int getCurrentUser() { 3883 UserInfo ui; 3884 try { 3885 ui = getService().getCurrentUser(); 3886 return ui != null ? ui.id : 0; 3887 } catch (RemoteException e) { 3888 throw e.rethrowFromSystemServer(); 3889 } 3890 } 3891 3892 /** 3893 * @param userid the user's id. Zero indicates the default user. 3894 * @hide 3895 */ 3896 public boolean switchUser(int userid) { 3897 try { 3898 return getService().switchUser(userid); 3899 } catch (RemoteException e) { 3900 throw e.rethrowFromSystemServer(); 3901 } 3902 } 3903 3904 /** 3905 * Logs out current current foreground user by switching to the system user and stopping the 3906 * user being switched from. 3907 * @hide 3908 */ 3909 public static void logoutCurrentUser() { 3910 int currentUser = ActivityManager.getCurrentUser(); 3911 if (currentUser != UserHandle.USER_SYSTEM) { 3912 try { 3913 getService().switchUser(UserHandle.USER_SYSTEM); 3914 getService().stopUser(currentUser, /* force= */ false, null); 3915 } catch (RemoteException e) { 3916 e.rethrowFromSystemServer(); 3917 } 3918 } 3919 } 3920 3921 /** {@hide} */ 3922 public static final int FLAG_OR_STOPPED = 1 << 0; 3923 /** {@hide} */ 3924 public static final int FLAG_AND_LOCKED = 1 << 1; 3925 /** {@hide} */ 3926 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3927 /** {@hide} */ 3928 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3929 3930 /** 3931 * Return whether the given user is actively running. This means that 3932 * the user is in the "started" state, not "stopped" -- it is currently 3933 * allowed to run code through scheduled alarms, receiving broadcasts, 3934 * etc. A started user may be either the current foreground user or a 3935 * background user; the result here does not distinguish between the two. 3936 * @param userId the user's id. Zero indicates the default user. 3937 * @hide 3938 */ 3939 public boolean isUserRunning(int userId) { 3940 try { 3941 return getService().isUserRunning(userId, 0); 3942 } catch (RemoteException e) { 3943 throw e.rethrowFromSystemServer(); 3944 } 3945 } 3946 3947 /** {@hide} */ 3948 public boolean isVrModePackageEnabled(ComponentName component) { 3949 try { 3950 return getService().isVrModePackageEnabled(component); 3951 } catch (RemoteException e) { 3952 throw e.rethrowFromSystemServer(); 3953 } 3954 } 3955 3956 /** 3957 * Perform a system dump of various state associated with the given application 3958 * package name. This call blocks while the dump is being performed, so should 3959 * not be done on a UI thread. The data will be written to the given file 3960 * descriptor as text. An application must hold the 3961 * {@link android.Manifest.permission#DUMP} permission to make this call. 3962 * @param fd The file descriptor that the dump should be written to. The file 3963 * descriptor is <em>not</em> closed by this function; the caller continues to 3964 * own it. 3965 * @param packageName The name of the package that is to be dumped. 3966 */ 3967 public void dumpPackageState(FileDescriptor fd, String packageName) { 3968 dumpPackageStateStatic(fd, packageName); 3969 } 3970 3971 /** 3972 * @hide 3973 */ 3974 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3975 FileOutputStream fout = new FileOutputStream(fd); 3976 PrintWriter pw = new FastPrintWriter(fout); 3977 dumpService(pw, fd, "package", new String[] { packageName }); 3978 pw.println(); 3979 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3980 "-a", "package", packageName }); 3981 pw.println(); 3982 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3983 pw.println(); 3984 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3985 pw.println(); 3986 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3987 pw.println(); 3988 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3989 pw.flush(); 3990 } 3991 3992 /** 3993 * @hide 3994 */ 3995 public static boolean isSystemReady() { 3996 if (!sSystemReady) { 3997 if (ActivityThread.isSystem()) { 3998 sSystemReady = 3999 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4000 } else { 4001 // Since this is being called from outside system server, system should be 4002 // ready by now. 4003 sSystemReady = true; 4004 } 4005 } 4006 return sSystemReady; 4007 } 4008 4009 /** 4010 * @hide 4011 */ 4012 public static void broadcastStickyIntent(Intent intent, int userId) { 4013 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4014 } 4015 4016 /** 4017 * Convenience for sending a sticky broadcast. For internal use only. 4018 * 4019 * @hide 4020 */ 4021 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4022 try { 4023 getService().broadcastIntent( 4024 null, intent, null, null, Activity.RESULT_OK, null, null, 4025 null /*permission*/, appOp, null, false, true, userId); 4026 } catch (RemoteException ex) { 4027 } 4028 } 4029 4030 /** 4031 * @hide 4032 */ 4033 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4034 String tag) { 4035 try { 4036 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4037 sourceUid, sourcePkg, tag); 4038 } catch (RemoteException ex) { 4039 } 4040 } 4041 4042 /** 4043 * @hide 4044 */ 4045 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4046 try { 4047 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4048 } catch (RemoteException ex) { 4049 } 4050 } 4051 4052 /** 4053 * @hide 4054 */ 4055 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4056 try { 4057 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4058 } catch (RemoteException ex) { 4059 } 4060 } 4061 4062 /** 4063 * @hide 4064 */ 4065 public static IActivityManager getService() { 4066 return IActivityManagerSingleton.get(); 4067 } 4068 4069 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4070 new Singleton<IActivityManager>() { 4071 @Override 4072 protected IActivityManager create() { 4073 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4074 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4075 return am; 4076 } 4077 }; 4078 4079 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4080 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4081 IBinder service = ServiceManager.checkService(name); 4082 if (service == null) { 4083 pw.println(" (Service not found)"); 4084 return; 4085 } 4086 TransferPipe tp = null; 4087 try { 4088 pw.flush(); 4089 tp = new TransferPipe(); 4090 tp.setBufferPrefix(" "); 4091 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4092 tp.go(fd, 10000); 4093 } catch (Throwable e) { 4094 if (tp != null) { 4095 tp.kill(); 4096 } 4097 pw.println("Failure dumping service:"); 4098 e.printStackTrace(pw); 4099 } 4100 } 4101 4102 /** 4103 * Request that the system start watching for the calling process to exceed a pss 4104 * size as given here. Once called, the system will look for any occasions where it 4105 * sees the associated process with a larger pss size and, when this happens, automatically 4106 * pull a heap dump from it and allow the user to share the data. Note that this request 4107 * continues running even if the process is killed and restarted. To remove the watch, 4108 * use {@link #clearWatchHeapLimit()}. 4109 * 4110 * <p>This API only work if the calling process has been marked as 4111 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4112 * (userdebug or eng) build.</p> 4113 * 4114 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4115 * handle heap limit reports themselves.</p> 4116 * 4117 * @param pssSize The size in bytes to set the limit at. 4118 */ 4119 public void setWatchHeapLimit(long pssSize) { 4120 try { 4121 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4122 mContext.getPackageName()); 4123 } catch (RemoteException e) { 4124 throw e.rethrowFromSystemServer(); 4125 } 4126 } 4127 4128 /** 4129 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4130 * If your package has an activity handling this action, it will be launched with the 4131 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4132 * match the activty must support this action and a MIME type of "*/*". 4133 */ 4134 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4135 4136 /** 4137 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4138 */ 4139 public void clearWatchHeapLimit() { 4140 try { 4141 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4142 } catch (RemoteException e) { 4143 throw e.rethrowFromSystemServer(); 4144 } 4145 } 4146 4147 /** 4148 * @hide 4149 */ 4150 public void startLockTaskMode(int taskId) { 4151 try { 4152 getService().startLockTaskModeById(taskId); 4153 } catch (RemoteException e) { 4154 throw e.rethrowFromSystemServer(); 4155 } 4156 } 4157 4158 /** 4159 * @hide 4160 */ 4161 public void stopLockTaskMode() { 4162 try { 4163 getService().stopLockTaskMode(); 4164 } catch (RemoteException e) { 4165 throw e.rethrowFromSystemServer(); 4166 } 4167 } 4168 4169 /** 4170 * Return whether currently in lock task mode. When in this mode 4171 * no new tasks can be created or switched to. 4172 * 4173 * @see Activity#startLockTask() 4174 * 4175 * @deprecated Use {@link #getLockTaskModeState} instead. 4176 */ 4177 @Deprecated 4178 public boolean isInLockTaskMode() { 4179 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4180 } 4181 4182 /** 4183 * Return the current state of task locking. The three possible outcomes 4184 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4185 * and {@link #LOCK_TASK_MODE_PINNED}. 4186 * 4187 * @see Activity#startLockTask() 4188 */ 4189 public int getLockTaskModeState() { 4190 try { 4191 return getService().getLockTaskModeState(); 4192 } catch (RemoteException e) { 4193 throw e.rethrowFromSystemServer(); 4194 } 4195 } 4196 4197 /** 4198 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4199 * thread can be a VR thread in a process at a time, and that thread may be subject to 4200 * restrictions on the amount of time it can run. 4201 * 4202 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4203 * method will return to normal operation, and calling this method will do nothing while 4204 * persistent VR mode is enabled. 4205 * 4206 * To reset the VR thread for an application, a tid of 0 can be passed. 4207 * 4208 * @see android.os.Process#myTid() 4209 * @param tid tid of the VR thread 4210 */ 4211 public static void setVrThread(int tid) { 4212 try { 4213 getService().setVrThread(tid); 4214 } catch (RemoteException e) { 4215 // pass 4216 } 4217 } 4218 4219 /** 4220 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4221 * beyond a single process. It requires holding the 4222 * {@link android.Manifest.permission#RESTRICTED_VR_ACCESS} permission. Only one thread can be a 4223 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4224 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4225 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4226 * persistent VR thread loses its new scheduling priority; this method must be called again to 4227 * set the persistent thread. 4228 * 4229 * To reset the persistent VR thread, a tid of 0 can be passed. 4230 * 4231 * @see android.os.Process#myTid() 4232 * @param tid tid of the VR thread 4233 * @hide 4234 */ 4235 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4236 public static void setPersistentVrThread(int tid) { 4237 try { 4238 getService().setPersistentVrThread(tid); 4239 } catch (RemoteException e) { 4240 // pass 4241 } 4242 } 4243 4244 /** 4245 * The AppTask allows you to manage your own application's tasks. 4246 * See {@link android.app.ActivityManager#getAppTasks()} 4247 */ 4248 public static class AppTask { 4249 private IAppTask mAppTaskImpl; 4250 4251 /** @hide */ 4252 public AppTask(IAppTask task) { 4253 mAppTaskImpl = task; 4254 } 4255 4256 /** 4257 * Finishes all activities in this task and removes it from the recent tasks list. 4258 */ 4259 public void finishAndRemoveTask() { 4260 try { 4261 mAppTaskImpl.finishAndRemoveTask(); 4262 } catch (RemoteException e) { 4263 throw e.rethrowFromSystemServer(); 4264 } 4265 } 4266 4267 /** 4268 * Get the RecentTaskInfo associated with this task. 4269 * 4270 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4271 */ 4272 public RecentTaskInfo getTaskInfo() { 4273 try { 4274 return mAppTaskImpl.getTaskInfo(); 4275 } catch (RemoteException e) { 4276 throw e.rethrowFromSystemServer(); 4277 } 4278 } 4279 4280 /** 4281 * Bring this task to the foreground. If it contains activities, they will be 4282 * brought to the foreground with it and their instances re-created if needed. 4283 * If it doesn't contain activities, the root activity of the task will be 4284 * re-launched. 4285 */ 4286 public void moveToFront() { 4287 try { 4288 mAppTaskImpl.moveToFront(); 4289 } catch (RemoteException e) { 4290 throw e.rethrowFromSystemServer(); 4291 } 4292 } 4293 4294 /** 4295 * Start an activity in this task. Brings the task to the foreground. If this task 4296 * is not currently active (that is, its id < 0), then a new activity for the given 4297 * Intent will be launched as the root of the task and the task brought to the 4298 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4299 * an activity to launch in a new task, then a new activity for the given Intent will 4300 * be launched on top of the task and the task brought to the foreground. If this 4301 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4302 * or would otherwise be launched in to a new task, then the activity not launched but 4303 * this task be brought to the foreground and a new intent delivered to the top 4304 * activity if appropriate. 4305 * 4306 * <p>In other words, you generally want to use an Intent here that does not specify 4307 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4308 * and let the system do the right thing.</p> 4309 * 4310 * @param intent The Intent describing the new activity to be launched on the task. 4311 * @param options Optional launch options. 4312 * 4313 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4314 */ 4315 public void startActivity(Context context, Intent intent, Bundle options) { 4316 ActivityThread thread = ActivityThread.currentActivityThread(); 4317 thread.getInstrumentation().execStartActivityFromAppTask(context, 4318 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4319 } 4320 4321 /** 4322 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4323 * Intent of this AppTask. 4324 * 4325 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4326 * be set; otherwise, it will be cleared. 4327 */ 4328 public void setExcludeFromRecents(boolean exclude) { 4329 try { 4330 mAppTaskImpl.setExcludeFromRecents(exclude); 4331 } catch (RemoteException e) { 4332 throw e.rethrowFromSystemServer(); 4333 } 4334 } 4335 } 4336} 4337