ActivityManager.java revision 9d2f03ec5d288b8e8f188eff736bac10770d4741
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.IBinder; 34import android.os.ParcelFileDescriptor; 35 36import com.android.internal.app.procstats.ProcessStats; 37import com.android.internal.os.RoSystemProperties; 38import com.android.internal.os.TransferPipe; 39import com.android.internal.util.FastPrintWriter; 40import com.android.server.LocalServices; 41 42import android.content.ComponentName; 43import android.content.Context; 44import android.content.Intent; 45import android.content.UriPermission; 46import android.content.pm.ApplicationInfo; 47import android.content.pm.ConfigurationInfo; 48import android.content.pm.IPackageDataObserver; 49import android.content.pm.PackageManager; 50import android.content.pm.ParceledListSlice; 51import android.content.pm.UserInfo; 52import android.content.res.Resources; 53import android.graphics.Bitmap; 54import android.graphics.Color; 55import android.graphics.Rect; 56import android.os.Bundle; 57import android.os.Debug; 58import android.os.Handler; 59import android.os.Parcel; 60import android.os.Parcelable; 61import android.os.Process; 62import android.os.RemoteException; 63import android.os.ServiceManager; 64import android.os.SystemProperties; 65import android.os.UserHandle; 66import android.text.TextUtils; 67import android.util.ArrayMap; 68import android.util.DisplayMetrics; 69import android.util.Singleton; 70import android.util.Size; 71 72import org.xmlpull.v1.XmlSerializer; 73 74import java.io.FileDescriptor; 75import java.io.FileOutputStream; 76import java.io.IOException; 77import java.io.PrintWriter; 78import java.lang.annotation.Retention; 79import java.lang.annotation.RetentionPolicy; 80import java.util.ArrayList; 81import java.util.List; 82 83/** 84 * <p> 85 * This class gives information about, and interacts 86 * with, activities, services, and the containing 87 * process. 88 * </p> 89 * 90 * <p> 91 * A number of the methods in this class are for 92 * debugging or informational purposes and they should 93 * not be used to affect any runtime behavior of 94 * your app. These methods are called out as such in 95 * the method level documentation. 96 * </p> 97 * 98 *<p> 99 * Most application developers should not have the need to 100 * use this class, most of whose methods are for specialized 101 * use cases. However, a few methods are more broadly applicable. 102 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 103 * enables your app to detect whether it is running on a low-memory device, 104 * and behave accordingly. 105 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 106 * is for apps with reset-data functionality. 107 * </p> 108 * 109 * <p> 110 * In some special use cases, where an app interacts with 111 * its Task stack, the app may use the 112 * {@link android.app.ActivityManager.AppTask} and 113 * {@link android.app.ActivityManager.RecentTaskInfo} inner 114 * classes. However, in general, the methods in this class should 115 * be used for testing and debugging purposes only. 116 * </p> 117 */ 118public class ActivityManager { 119 private static String TAG = "ActivityManager"; 120 121 private static int gMaxRecentTasks = -1; 122 123 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 124 125 private final Context mContext; 126 127 private static volatile boolean sSystemReady = false; 128 129 /** 130 * System property to enable task snapshots. 131 * @hide 132 */ 133 public final static boolean ENABLE_TASK_SNAPSHOTS; 134 135 static { 136 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 137 } 138 139 static final class UidObserver extends IUidObserver.Stub { 140 final OnUidImportanceListener mListener; 141 142 UidObserver(OnUidImportanceListener listener) { 143 mListener = listener; 144 } 145 146 @Override 147 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 148 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 149 } 150 151 @Override 152 public void onUidGone(int uid, boolean disabled) { 153 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 154 } 155 156 @Override 157 public void onUidActive(int uid) { 158 } 159 160 @Override 161 public void onUidIdle(int uid, boolean disabled) { 162 } 163 } 164 165 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 166 167 /** 168 * Defines acceptable types of bugreports. 169 * @hide 170 */ 171 @Retention(RetentionPolicy.SOURCE) 172 @IntDef({ 173 BUGREPORT_OPTION_FULL, 174 BUGREPORT_OPTION_INTERACTIVE, 175 BUGREPORT_OPTION_REMOTE, 176 BUGREPORT_OPTION_WEAR, 177 BUGREPORT_OPTION_TELEPHONY 178 }) 179 public @interface BugreportMode {} 180 /** 181 * Takes a bugreport without user interference (and hence causing less 182 * interference to the system), but includes all sections. 183 * @hide 184 */ 185 public static final int BUGREPORT_OPTION_FULL = 0; 186 /** 187 * Allows user to monitor progress and enter additional data; might not include all 188 * sections. 189 * @hide 190 */ 191 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 192 /** 193 * Takes a bugreport requested remotely by administrator of the Device Owner app, 194 * not the device's user. 195 * @hide 196 */ 197 public static final int BUGREPORT_OPTION_REMOTE = 2; 198 /** 199 * Takes a bugreport on a wearable device. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_WEAR = 3; 203 204 /** 205 * Takes a lightweight version of bugreport that only includes a few, urgent sections 206 * used to report telephony bugs. 207 * @hide 208 */ 209 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 210 211 /** 212 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 213 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 214 * uninstalled in lieu of the declaring one. The package named here must be 215 * signed with the same certificate as the one declaring the {@code <meta-data>}. 216 */ 217 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 218 219 /** 220 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 221 * @hide 222 */ 223 public static final int START_VOICE_HIDDEN_SESSION = -10; 224 225 /** 226 * Result for IActivityManager.startVoiceActivity: active session does not match 227 * the requesting token. 228 * @hide 229 */ 230 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 231 232 /** 233 * Result for IActivityManager.startActivity: trying to start a background user 234 * activity that shouldn't be displayed for all users. 235 * @hide 236 */ 237 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 238 239 /** 240 * Result for IActivityManager.startActivity: trying to start an activity under voice 241 * control when that activity does not support the VOICE category. 242 * @hide 243 */ 244 public static final int START_NOT_VOICE_COMPATIBLE = -7; 245 246 /** 247 * Result for IActivityManager.startActivity: an error where the 248 * start had to be canceled. 249 * @hide 250 */ 251 public static final int START_CANCELED = -6; 252 253 /** 254 * Result for IActivityManager.startActivity: an error where the 255 * thing being started is not an activity. 256 * @hide 257 */ 258 public static final int START_NOT_ACTIVITY = -5; 259 260 /** 261 * Result for IActivityManager.startActivity: an error where the 262 * caller does not have permission to start the activity. 263 * @hide 264 */ 265 public static final int START_PERMISSION_DENIED = -4; 266 267 /** 268 * Result for IActivityManager.startActivity: an error where the 269 * caller has requested both to forward a result and to receive 270 * a result. 271 * @hide 272 */ 273 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 274 275 /** 276 * Result for IActivityManager.startActivity: an error where the 277 * requested class is not found. 278 * @hide 279 */ 280 public static final int START_CLASS_NOT_FOUND = -2; 281 282 /** 283 * Result for IActivityManager.startActivity: an error where the 284 * given Intent could not be resolved to an activity. 285 * @hide 286 */ 287 public static final int START_INTENT_NOT_RESOLVED = -1; 288 289 /** 290 * Result for IActivityManaqer.startActivity: the activity was started 291 * successfully as normal. 292 * @hide 293 */ 294 public static final int START_SUCCESS = 0; 295 296 /** 297 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 298 * be executed if it is the recipient, and that is indeed the case. 299 * @hide 300 */ 301 public static final int START_RETURN_INTENT_TO_CALLER = 1; 302 303 /** 304 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 305 * a task was simply brought to the foreground. 306 * @hide 307 */ 308 public static final int START_TASK_TO_FRONT = 2; 309 310 /** 311 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 312 * the given Intent was given to the existing top activity. 313 * @hide 314 */ 315 public static final int START_DELIVERED_TO_TOP = 3; 316 317 /** 318 * Result for IActivityManaqer.startActivity: request was canceled because 319 * app switches are temporarily canceled to ensure the user's last request 320 * (such as pressing home) is performed. 321 * @hide 322 */ 323 public static final int START_SWITCHES_CANCELED = 4; 324 325 /** 326 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 327 * while in Lock Task Mode. 328 * @hide 329 */ 330 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 331 332 /** 333 * Flag for IActivityManaqer.startActivity: do special start mode where 334 * a new activity is launched only if it is needed. 335 * @hide 336 */ 337 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 338 339 /** 340 * Flag for IActivityManaqer.startActivity: launch the app for 341 * debugging. 342 * @hide 343 */ 344 public static final int START_FLAG_DEBUG = 1<<1; 345 346 /** 347 * Flag for IActivityManaqer.startActivity: launch the app for 348 * allocation tracking. 349 * @hide 350 */ 351 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 352 353 /** 354 * Flag for IActivityManaqer.startActivity: launch the app with 355 * native debugging support. 356 * @hide 357 */ 358 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 359 360 /** 361 * Result for IActivityManaqer.broadcastIntent: success! 362 * @hide 363 */ 364 public static final int BROADCAST_SUCCESS = 0; 365 366 /** 367 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 368 * a sticky intent without appropriate permission. 369 * @hide 370 */ 371 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 372 373 /** 374 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 375 * to a stopped user. Fail. 376 * @hide 377 */ 378 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 379 380 /** 381 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 382 * for a sendBroadcast operation. 383 * @hide 384 */ 385 public static final int INTENT_SENDER_BROADCAST = 1; 386 387 /** 388 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 389 * for a startActivity operation. 390 * @hide 391 */ 392 public static final int INTENT_SENDER_ACTIVITY = 2; 393 394 /** 395 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 396 * for an activity result operation. 397 * @hide 398 */ 399 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 400 401 /** 402 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 403 * for a startService operation. 404 * @hide 405 */ 406 public static final int INTENT_SENDER_SERVICE = 4; 407 408 /** 409 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 410 * for a startForegroundService operation. 411 * @hide 412 */ 413 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 414 415 /** @hide User operation call: success! */ 416 public static final int USER_OP_SUCCESS = 0; 417 418 /** @hide User operation call: given user id is not known. */ 419 public static final int USER_OP_UNKNOWN_USER = -1; 420 421 /** @hide User operation call: given user id is the current user, can't be stopped. */ 422 public static final int USER_OP_IS_CURRENT = -2; 423 424 /** @hide User operation call: system user can't be stopped. */ 425 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 426 427 /** @hide User operation call: one of related users cannot be stopped. */ 428 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 429 430 /** @hide Not a real process state. */ 431 public static final int PROCESS_STATE_UNKNOWN = -1; 432 433 /** @hide Process is a persistent system process. */ 434 public static final int PROCESS_STATE_PERSISTENT = 0; 435 436 /** @hide Process is a persistent system process and is doing UI. */ 437 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 438 439 /** @hide Process is hosting the current top activities. Note that this covers 440 * all activities that are visible to the user. */ 441 public static final int PROCESS_STATE_TOP = 2; 442 443 /** @hide Process is hosting a foreground service due to a system binding. */ 444 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 445 446 /** @hide Process is hosting a foreground service. */ 447 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 448 449 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 450 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 451 452 /** @hide Process is important to the user, and something they are aware of. */ 453 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 454 455 /** @hide Process is important to the user, but not something they are aware of. */ 456 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 457 458 /** @hide Process is in the background running a backup/restore operation. */ 459 public static final int PROCESS_STATE_BACKUP = 8; 460 461 /** @hide Process is in the background, but it can't restore its state so we want 462 * to try to avoid killing it. */ 463 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 464 465 /** @hide Process is in the background running a service. Unlike oom_adj, this level 466 * is used for both the normal running in background state and the executing 467 * operations state. */ 468 public static final int PROCESS_STATE_SERVICE = 10; 469 470 /** @hide Process is in the background running a receiver. Note that from the 471 * perspective of oom_adj receivers run at a higher foreground level, but for our 472 * prioritization here that is not necessary and putting them below services means 473 * many fewer changes in some process states as they receive broadcasts. */ 474 public static final int PROCESS_STATE_RECEIVER = 11; 475 476 /** @hide Process is in the background but hosts the home activity. */ 477 public static final int PROCESS_STATE_HOME = 12; 478 479 /** @hide Process is in the background but hosts the last shown activity. */ 480 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 481 482 /** @hide Process is being cached for later use and contains activities. */ 483 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 484 485 /** @hide Process is being cached for later use and is a client of another cached 486 * process that contains activities. */ 487 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 488 489 /** @hide Process is being cached for later use and is empty. */ 490 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 491 492 /** @hide Process does not exist. */ 493 public static final int PROCESS_STATE_NONEXISTENT = 17; 494 495 /** @hide The lowest process state number */ 496 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 497 498 /** @hide The highest process state number */ 499 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 500 501 /** @hide Should this process state be considered a background state? */ 502 public static final boolean isProcStateBackground(int procState) { 503 return procState >= PROCESS_STATE_BACKUP; 504 } 505 506 /** @hide requestType for assist context: only basic information. */ 507 public static final int ASSIST_CONTEXT_BASIC = 0; 508 509 /** @hide requestType for assist context: generate full AssistStructure. */ 510 public static final int ASSIST_CONTEXT_FULL = 1; 511 512 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 513 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 514 515 /** @hide Flag for registerUidObserver: report changes in process state. */ 516 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 517 518 /** @hide Flag for registerUidObserver: report uid gone. */ 519 public static final int UID_OBSERVER_GONE = 1<<1; 520 521 /** @hide Flag for registerUidObserver: report uid has become idle. */ 522 public static final int UID_OBSERVER_IDLE = 1<<2; 523 524 /** @hide Flag for registerUidObserver: report uid has become active. */ 525 public static final int UID_OBSERVER_ACTIVE = 1<<3; 526 527 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 528 public static final int APP_START_MODE_NORMAL = 0; 529 530 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 531 public static final int APP_START_MODE_DELAYED = 1; 532 533 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 534 * rigid errors (throwing exception). */ 535 public static final int APP_START_MODE_DELAYED_RIGID = 2; 536 537 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 538 * launches; this is the mode for ephemeral apps. */ 539 public static final int APP_START_MODE_DISABLED = 3; 540 541 /** 542 * Lock task mode is not active. 543 */ 544 public static final int LOCK_TASK_MODE_NONE = 0; 545 546 /** 547 * Full lock task mode is active. 548 */ 549 public static final int LOCK_TASK_MODE_LOCKED = 1; 550 551 /** 552 * App pinning mode is active. 553 */ 554 public static final int LOCK_TASK_MODE_PINNED = 2; 555 556 Point mAppTaskThumbnailSize; 557 558 /*package*/ ActivityManager(Context context, Handler handler) { 559 mContext = context; 560 } 561 562 /** 563 * Screen compatibility mode: the application most always run in 564 * compatibility mode. 565 * @hide 566 */ 567 public static final int COMPAT_MODE_ALWAYS = -1; 568 569 /** 570 * Screen compatibility mode: the application can never run in 571 * compatibility mode. 572 * @hide 573 */ 574 public static final int COMPAT_MODE_NEVER = -2; 575 576 /** 577 * Screen compatibility mode: unknown. 578 * @hide 579 */ 580 public static final int COMPAT_MODE_UNKNOWN = -3; 581 582 /** 583 * Screen compatibility mode: the application currently has compatibility 584 * mode disabled. 585 * @hide 586 */ 587 public static final int COMPAT_MODE_DISABLED = 0; 588 589 /** 590 * Screen compatibility mode: the application currently has compatibility 591 * mode enabled. 592 * @hide 593 */ 594 public static final int COMPAT_MODE_ENABLED = 1; 595 596 /** 597 * Screen compatibility mode: request to toggle the application's 598 * compatibility mode. 599 * @hide 600 */ 601 public static final int COMPAT_MODE_TOGGLE = 2; 602 603 /** @hide */ 604 public static class StackId { 605 /** Invalid stack ID. */ 606 public static final int INVALID_STACK_ID = -1; 607 608 /** First static stack ID. */ 609 public static final int FIRST_STATIC_STACK_ID = 0; 610 611 /** Home activity stack ID. */ 612 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 613 614 /** ID of stack where fullscreen activities are normally launched into. */ 615 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 616 617 /** ID of stack where freeform/resized activities are normally launched into. */ 618 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 619 620 /** ID of stack that occupies a dedicated region of the screen. */ 621 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 622 623 /** ID of stack that always on top (always visible) when it exist. */ 624 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 625 626 /** ID of stack that contains the Recents activity. */ 627 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 628 629 /** ID of stack that contains activities launched by the assistant. */ 630 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 631 632 /** Last static stack stack ID. */ 633 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 634 635 /** Start of ID range used by stacks that are created dynamically. */ 636 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 637 638 public static boolean isStaticStack(int stackId) { 639 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 640 } 641 642 public static boolean isDynamicStack(int stackId) { 643 return stackId >= FIRST_DYNAMIC_STACK_ID; 644 } 645 646 /** 647 * Returns true if the activities contained in the input stack display a shadow around 648 * their border. 649 */ 650 public static boolean hasWindowShadow(int stackId) { 651 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 652 } 653 654 /** 655 * Returns true if the activities contained in the input stack display a decor view. 656 */ 657 public static boolean hasWindowDecor(int stackId) { 658 return stackId == FREEFORM_WORKSPACE_STACK_ID; 659 } 660 661 /** 662 * Returns true if the tasks contained in the stack can be resized independently of the 663 * stack. 664 */ 665 public static boolean isTaskResizeAllowed(int stackId) { 666 return stackId == FREEFORM_WORKSPACE_STACK_ID; 667 } 668 669 /** Returns true if the task bounds should persist across power cycles. */ 670 public static boolean persistTaskBounds(int stackId) { 671 return stackId == FREEFORM_WORKSPACE_STACK_ID; 672 } 673 674 /** 675 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 676 */ 677 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 678 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 679 } 680 681 /** 682 * Returns true if we try to maintain focus in the current stack when the top activity 683 * finishes. 684 */ 685 public static boolean keepFocusInStackIfPossible(int stackId) { 686 return stackId == FREEFORM_WORKSPACE_STACK_ID 687 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 688 } 689 690 /** 691 * Returns true if Stack size is affected by the docked stack changing size. 692 */ 693 public static boolean isResizeableByDockedStack(int stackId) { 694 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 695 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 696 } 697 698 /** 699 * Returns true if the size of tasks in the input stack are affected by the docked stack 700 * changing size. 701 */ 702 public static boolean isTaskResizeableByDockedStack(int stackId) { 703 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 704 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 705 && stackId != ASSISTANT_STACK_ID; 706 } 707 708 /** 709 * Returns true if the input stack is affected by drag resizing. 710 */ 711 public static boolean isStackAffectedByDragResizing(int stackId) { 712 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 713 && stackId != ASSISTANT_STACK_ID; 714 } 715 716 /** 717 * Returns true if the windows of tasks being moved to the target stack from the source 718 * stack should be replaced, meaning that window manager will keep the old window around 719 * until the new is ready. 720 */ 721 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 722 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 723 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 724 } 725 726 /** 727 * Return whether a stackId is a stack containing floating windows. Floating windows 728 * are laid out differently as they are allowed to extend past the display bounds 729 * without overscan insets. 730 */ 731 public static boolean tasksAreFloating(int stackId) { 732 return stackId == FREEFORM_WORKSPACE_STACK_ID 733 || stackId == PINNED_STACK_ID; 734 } 735 736 /** 737 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 738 * are generally fullscreen stacks. 739 */ 740 public static boolean isBackdropToTranslucentActivity(int stackId) { 741 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 742 || stackId == ASSISTANT_STACK_ID; 743 } 744 745 /** 746 * Returns true if animation specs should be constructed for app transition that moves 747 * the task to the specified stack. 748 */ 749 public static boolean useAnimationSpecForAppTransition(int stackId) { 750 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 751 // reboots. 752 return stackId == FREEFORM_WORKSPACE_STACK_ID 753 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 754 || stackId == ASSISTANT_STACK_ID 755 || stackId == DOCKED_STACK_ID 756 || stackId == INVALID_STACK_ID; 757 } 758 759 /** 760 * Returns true if the windows in the stack can receive input keys. 761 */ 762 public static boolean canReceiveKeys(int stackId) { 763 return stackId != PINNED_STACK_ID; 764 } 765 766 /** 767 * Returns true if the stack can be visible above lockscreen. 768 */ 769 public static boolean isAllowedOverLockscreen(int stackId) { 770 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 771 stackId == ASSISTANT_STACK_ID; 772 } 773 774 /** 775 * Returns true if activities from stasks in the given {@param stackId} are allowed to 776 * enter picture-in-picture. 777 */ 778 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 779 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 780 stackId != RECENTS_STACK_ID; 781 } 782 783 public static boolean isAlwaysOnTop(int stackId) { 784 return stackId == PINNED_STACK_ID; 785 } 786 787 /** 788 * Returns true if the top task in the task is allowed to return home when finished and 789 * there are other tasks in the stack. 790 */ 791 public static boolean allowTopTaskToReturnHome(int stackId) { 792 return stackId != PINNED_STACK_ID; 793 } 794 795 /** 796 * Returns true if the stack should be resized to match the bounds specified by 797 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 798 */ 799 public static boolean resizeStackWithLaunchBounds(int stackId) { 800 return stackId == PINNED_STACK_ID; 801 } 802 803 /** 804 * Returns true if any visible windows belonging to apps in this stack should be kept on 805 * screen when the app is killed due to something like the low memory killer. 806 */ 807 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 808 return stackId != PINNED_STACK_ID; 809 } 810 811 /** 812 * Returns true if the backdrop on the client side should match the frame of the window. 813 * Returns false, if the backdrop should be fullscreen. 814 */ 815 public static boolean useWindowFrameForBackdrop(int stackId) { 816 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 817 } 818 819 /** 820 * Returns true if a window from the specified stack with {@param stackId} are normally 821 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 822 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 823 * etc. 824 */ 825 public static boolean normallyFullscreenWindows(int stackId) { 826 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 827 && stackId != DOCKED_STACK_ID; 828 } 829 830 /** 831 * Returns true if the input stack id should only be present on a device that supports 832 * multi-window mode. 833 * @see android.app.ActivityManager#supportsMultiWindow 834 */ 835 public static boolean isMultiWindowStack(int stackId) { 836 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 837 || stackId == DOCKED_STACK_ID; 838 } 839 840 /** 841 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 842 */ 843 public static boolean isHomeOrRecentsStack(int stackId) { 844 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 845 } 846 847 /** 848 * Returns true if activities contained in this stack can request visible behind by 849 * calling {@link Activity#requestVisibleBehind}. 850 */ 851 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 852 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 853 stackId == ASSISTANT_STACK_ID; 854 } 855 856 /** 857 * Returns true if this stack may be scaled without resizing, and windows within may need 858 * to be configured as such. 859 */ 860 public static boolean windowsAreScaleable(int stackId) { 861 return stackId == PINNED_STACK_ID; 862 } 863 864 /** 865 * Returns true if windows in this stack should be given move animations by default. 866 */ 867 public static boolean hasMovementAnimations(int stackId) { 868 return stackId != PINNED_STACK_ID; 869 } 870 871 /** Returns true if the input stack and its content can affect the device orientation. */ 872 public static boolean canSpecifyOrientation(int stackId) { 873 return stackId == HOME_STACK_ID 874 || stackId == RECENTS_STACK_ID 875 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 876 || stackId == ASSISTANT_STACK_ID 877 || isDynamicStack(stackId); 878 } 879 } 880 881 /** 882 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 883 * specifies the position of the created docked stack at the top half of the screen if 884 * in portrait mode or at the left half of the screen if in landscape mode. 885 * @hide 886 */ 887 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 888 889 /** 890 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 891 * specifies the position of the created docked stack at the bottom half of the screen if 892 * in portrait mode or at the right half of the screen if in landscape mode. 893 * @hide 894 */ 895 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 896 897 /** 898 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 899 * that the resize doesn't need to preserve the window, and can be skipped if bounds 900 * is unchanged. This mode is used by window manager in most cases. 901 * @hide 902 */ 903 public static final int RESIZE_MODE_SYSTEM = 0; 904 905 /** 906 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 907 * that the resize should preserve the window if possible. 908 * @hide 909 */ 910 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 911 912 /** 913 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 914 * that the resize should be performed even if the bounds appears unchanged. 915 * @hide 916 */ 917 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 918 919 /** 920 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 921 * manager during a screen rotation. 922 * @hide 923 */ 924 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 925 926 /** 927 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 928 * resize is due to a drag action. 929 * @hide 930 */ 931 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 932 933 /** 934 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 935 * that the resize should preserve the window if possible, and should not be skipped 936 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 937 * is ending. 938 * @hide 939 */ 940 public static final int RESIZE_MODE_USER_FORCED = 941 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 942 943 /** @hide */ 944 public int getFrontActivityScreenCompatMode() { 945 try { 946 return getService().getFrontActivityScreenCompatMode(); 947 } catch (RemoteException e) { 948 throw e.rethrowFromSystemServer(); 949 } 950 } 951 952 /** @hide */ 953 public void setFrontActivityScreenCompatMode(int mode) { 954 try { 955 getService().setFrontActivityScreenCompatMode(mode); 956 } catch (RemoteException e) { 957 throw e.rethrowFromSystemServer(); 958 } 959 } 960 961 /** @hide */ 962 public int getPackageScreenCompatMode(String packageName) { 963 try { 964 return getService().getPackageScreenCompatMode(packageName); 965 } catch (RemoteException e) { 966 throw e.rethrowFromSystemServer(); 967 } 968 } 969 970 /** @hide */ 971 public void setPackageScreenCompatMode(String packageName, int mode) { 972 try { 973 getService().setPackageScreenCompatMode(packageName, mode); 974 } catch (RemoteException e) { 975 throw e.rethrowFromSystemServer(); 976 } 977 } 978 979 /** @hide */ 980 public boolean getPackageAskScreenCompat(String packageName) { 981 try { 982 return getService().getPackageAskScreenCompat(packageName); 983 } catch (RemoteException e) { 984 throw e.rethrowFromSystemServer(); 985 } 986 } 987 988 /** @hide */ 989 public void setPackageAskScreenCompat(String packageName, boolean ask) { 990 try { 991 getService().setPackageAskScreenCompat(packageName, ask); 992 } catch (RemoteException e) { 993 throw e.rethrowFromSystemServer(); 994 } 995 } 996 997 /** 998 * Return the approximate per-application memory class of the current 999 * device. This gives you an idea of how hard a memory limit you should 1000 * impose on your application to let the overall system work best. The 1001 * returned value is in megabytes; the baseline Android memory class is 1002 * 16 (which happens to be the Java heap limit of those devices); some 1003 * device with more memory may return 24 or even higher numbers. 1004 */ 1005 public int getMemoryClass() { 1006 return staticGetMemoryClass(); 1007 } 1008 1009 /** @hide */ 1010 static public int staticGetMemoryClass() { 1011 // Really brain dead right now -- just take this from the configured 1012 // vm heap size, and assume it is in megabytes and thus ends with "m". 1013 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1014 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1015 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1016 } 1017 return staticGetLargeMemoryClass(); 1018 } 1019 1020 /** 1021 * Return the approximate per-application memory class of the current 1022 * device when an application is running with a large heap. This is the 1023 * space available for memory-intensive applications; most applications 1024 * should not need this amount of memory, and should instead stay with the 1025 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1026 * This may be the same size as {@link #getMemoryClass()} on memory 1027 * constrained devices, or it may be significantly larger on devices with 1028 * a large amount of available RAM. 1029 * 1030 * <p>The is the size of the application's Dalvik heap if it has 1031 * specified <code>android:largeHeap="true"</code> in its manifest. 1032 */ 1033 public int getLargeMemoryClass() { 1034 return staticGetLargeMemoryClass(); 1035 } 1036 1037 /** @hide */ 1038 static public int staticGetLargeMemoryClass() { 1039 // Really brain dead right now -- just take this from the configured 1040 // vm heap size, and assume it is in megabytes and thus ends with "m". 1041 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1042 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1043 } 1044 1045 /** 1046 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1047 * is ultimately up to the device configuration, but currently it generally means 1048 * something in the class of a 512MB device with about a 800x480 or less screen. 1049 * This is mostly intended to be used by apps to determine whether they should turn 1050 * off certain features that require more RAM. 1051 */ 1052 public boolean isLowRamDevice() { 1053 return isLowRamDeviceStatic(); 1054 } 1055 1056 /** @hide */ 1057 public static boolean isLowRamDeviceStatic() { 1058 return RoSystemProperties.CONFIG_LOW_RAM; 1059 } 1060 1061 /** 1062 * Used by persistent processes to determine if they are running on a 1063 * higher-end device so should be okay using hardware drawing acceleration 1064 * (which tends to consume a lot more RAM). 1065 * @hide 1066 */ 1067 static public boolean isHighEndGfx() { 1068 return !isLowRamDeviceStatic() && 1069 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1070 } 1071 1072 /** 1073 * Return the maximum number of recents entries that we will maintain and show. 1074 * @hide 1075 */ 1076 static public int getMaxRecentTasksStatic() { 1077 if (gMaxRecentTasks < 0) { 1078 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1079 } 1080 return gMaxRecentTasks; 1081 } 1082 1083 /** 1084 * Return the default limit on the number of recents that an app can make. 1085 * @hide 1086 */ 1087 static public int getDefaultAppRecentsLimitStatic() { 1088 return getMaxRecentTasksStatic() / 6; 1089 } 1090 1091 /** 1092 * Return the maximum limit on the number of recents that an app can make. 1093 * @hide 1094 */ 1095 static public int getMaxAppRecentsLimitStatic() { 1096 return getMaxRecentTasksStatic() / 2; 1097 } 1098 1099 /** 1100 * Returns true if the system supports at least one form of multi-window. 1101 * E.g. freeform, split-screen, picture-in-picture. 1102 * @hide 1103 */ 1104 static public boolean supportsMultiWindow() { 1105 return !isLowRamDeviceStatic() 1106 && Resources.getSystem().getBoolean( 1107 com.android.internal.R.bool.config_supportsMultiWindow); 1108 } 1109 1110 /** 1111 * Returns true if the system supports split screen multi-window. 1112 * @hide 1113 */ 1114 static public boolean supportsSplitScreenMultiWindow() { 1115 return supportsMultiWindow() 1116 && Resources.getSystem().getBoolean( 1117 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1118 } 1119 1120 /** 1121 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1122 * the user interacts with the activity currently in picture-in-picture mode. 1123 */ 1124 public static int getMaxNumPictureInPictureActions() { 1125 return NUM_ALLOWED_PIP_ACTIONS; 1126 } 1127 1128 /** 1129 * Information you can set and retrieve about the current activity within the recent task list. 1130 */ 1131 public static class TaskDescription implements Parcelable { 1132 /** @hide */ 1133 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1134 private static final String ATTR_TASKDESCRIPTIONLABEL = 1135 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1136 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1137 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1138 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1139 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1140 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1141 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1142 1143 private String mLabel; 1144 private Bitmap mIcon; 1145 private String mIconFilename; 1146 private int mColorPrimary; 1147 private int mColorBackground; 1148 private int mStatusBarColor; 1149 private int mNavigationBarColor; 1150 1151 /** 1152 * Creates the TaskDescription to the specified values. 1153 * 1154 * @param label A label and description of the current state of this task. 1155 * @param icon An icon that represents the current state of this task. 1156 * @param colorPrimary A color to override the theme's primary color. This color must be 1157 * opaque. 1158 */ 1159 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1160 this(label, icon, null, colorPrimary, 0, 0, 0); 1161 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1162 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1163 } 1164 } 1165 1166 /** 1167 * Creates the TaskDescription to the specified values. 1168 * 1169 * @param label A label and description of the current state of this activity. 1170 * @param icon An icon that represents the current state of this activity. 1171 */ 1172 public TaskDescription(String label, Bitmap icon) { 1173 this(label, icon, null, 0, 0, 0, 0); 1174 } 1175 1176 /** 1177 * Creates the TaskDescription to the specified values. 1178 * 1179 * @param label A label and description of the current state of this activity. 1180 */ 1181 public TaskDescription(String label) { 1182 this(label, null, null, 0, 0, 0, 0); 1183 } 1184 1185 /** 1186 * Creates an empty TaskDescription. 1187 */ 1188 public TaskDescription() { 1189 this(null, null, null, 0, 0, 0, 0); 1190 } 1191 1192 /** @hide */ 1193 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1194 int colorBackground, int statusBarColor, int navigationBarColor) { 1195 mLabel = label; 1196 mIcon = icon; 1197 mIconFilename = iconFilename; 1198 mColorPrimary = colorPrimary; 1199 mColorBackground = colorBackground; 1200 mStatusBarColor = statusBarColor; 1201 mNavigationBarColor = navigationBarColor; 1202 } 1203 1204 /** 1205 * Creates a copy of another TaskDescription. 1206 */ 1207 public TaskDescription(TaskDescription td) { 1208 copyFrom(td); 1209 } 1210 1211 /** 1212 * Copies this the values from another TaskDescription. 1213 * @hide 1214 */ 1215 public void copyFrom(TaskDescription other) { 1216 mLabel = other.mLabel; 1217 mIcon = other.mIcon; 1218 mIconFilename = other.mIconFilename; 1219 mColorPrimary = other.mColorPrimary; 1220 mColorBackground = other.mColorBackground; 1221 mStatusBarColor = other.mStatusBarColor; 1222 mNavigationBarColor = other.mNavigationBarColor; 1223 } 1224 1225 /** 1226 * Copies this the values from another TaskDescription, but preserves the hidden fields 1227 * if they weren't set on {@code other} 1228 * @hide 1229 */ 1230 public void copyFromPreserveHiddenFields(TaskDescription other) { 1231 mLabel = other.mLabel; 1232 mIcon = other.mIcon; 1233 mIconFilename = other.mIconFilename; 1234 mColorPrimary = other.mColorPrimary; 1235 if (other.mColorBackground != 0) { 1236 mColorBackground = other.mColorBackground; 1237 } 1238 if (other.mStatusBarColor != 0) { 1239 mStatusBarColor = other.mStatusBarColor; 1240 } 1241 if (other.mNavigationBarColor != 0) { 1242 mNavigationBarColor = other.mNavigationBarColor; 1243 } 1244 } 1245 1246 private TaskDescription(Parcel source) { 1247 readFromParcel(source); 1248 } 1249 1250 /** 1251 * Sets the label for this task description. 1252 * @hide 1253 */ 1254 public void setLabel(String label) { 1255 mLabel = label; 1256 } 1257 1258 /** 1259 * Sets the primary color for this task description. 1260 * @hide 1261 */ 1262 public void setPrimaryColor(int primaryColor) { 1263 // Ensure that the given color is valid 1264 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1265 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1266 } 1267 mColorPrimary = primaryColor; 1268 } 1269 1270 /** 1271 * Sets the background color for this task description. 1272 * @hide 1273 */ 1274 public void setBackgroundColor(int backgroundColor) { 1275 // Ensure that the given color is valid 1276 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1277 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1278 } 1279 mColorBackground = backgroundColor; 1280 } 1281 1282 /** 1283 * @hide 1284 */ 1285 public void setStatusBarColor(int statusBarColor) { 1286 mStatusBarColor = statusBarColor; 1287 } 1288 1289 /** 1290 * @hide 1291 */ 1292 public void setNavigationBarColor(int navigationBarColor) { 1293 mNavigationBarColor = navigationBarColor; 1294 } 1295 1296 /** 1297 * Sets the icon for this task description. 1298 * @hide 1299 */ 1300 public void setIcon(Bitmap icon) { 1301 mIcon = icon; 1302 } 1303 1304 /** 1305 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1306 * bitmap. 1307 * @hide 1308 */ 1309 public void setIconFilename(String iconFilename) { 1310 mIconFilename = iconFilename; 1311 mIcon = null; 1312 } 1313 1314 /** 1315 * @return The label and description of the current state of this task. 1316 */ 1317 public String getLabel() { 1318 return mLabel; 1319 } 1320 1321 /** 1322 * @return The icon that represents the current state of this task. 1323 */ 1324 public Bitmap getIcon() { 1325 if (mIcon != null) { 1326 return mIcon; 1327 } 1328 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1329 } 1330 1331 /** @hide */ 1332 public String getIconFilename() { 1333 return mIconFilename; 1334 } 1335 1336 /** @hide */ 1337 public Bitmap getInMemoryIcon() { 1338 return mIcon; 1339 } 1340 1341 /** @hide */ 1342 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1343 if (iconFilename != null) { 1344 try { 1345 return getService().getTaskDescriptionIcon(iconFilename, 1346 userId); 1347 } catch (RemoteException e) { 1348 throw e.rethrowFromSystemServer(); 1349 } 1350 } 1351 return null; 1352 } 1353 1354 /** 1355 * @return The color override on the theme's primary color. 1356 */ 1357 public int getPrimaryColor() { 1358 return mColorPrimary; 1359 } 1360 1361 /** 1362 * @return The background color. 1363 * @hide 1364 */ 1365 public int getBackgroundColor() { 1366 return mColorBackground; 1367 } 1368 1369 /** 1370 * @hide 1371 */ 1372 public int getStatusBarColor() { 1373 return mStatusBarColor; 1374 } 1375 1376 /** 1377 * @hide 1378 */ 1379 public int getNavigationBarColor() { 1380 return mNavigationBarColor; 1381 } 1382 1383 /** @hide */ 1384 public void saveToXml(XmlSerializer out) throws IOException { 1385 if (mLabel != null) { 1386 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1387 } 1388 if (mColorPrimary != 0) { 1389 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1390 Integer.toHexString(mColorPrimary)); 1391 } 1392 if (mColorBackground != 0) { 1393 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1394 Integer.toHexString(mColorBackground)); 1395 } 1396 if (mIconFilename != null) { 1397 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1398 } 1399 } 1400 1401 /** @hide */ 1402 public void restoreFromXml(String attrName, String attrValue) { 1403 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1404 setLabel(attrValue); 1405 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1406 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1407 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1408 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1409 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1410 setIconFilename(attrValue); 1411 } 1412 } 1413 1414 @Override 1415 public int describeContents() { 1416 return 0; 1417 } 1418 1419 @Override 1420 public void writeToParcel(Parcel dest, int flags) { 1421 if (mLabel == null) { 1422 dest.writeInt(0); 1423 } else { 1424 dest.writeInt(1); 1425 dest.writeString(mLabel); 1426 } 1427 if (mIcon == null) { 1428 dest.writeInt(0); 1429 } else { 1430 dest.writeInt(1); 1431 mIcon.writeToParcel(dest, 0); 1432 } 1433 dest.writeInt(mColorPrimary); 1434 dest.writeInt(mColorBackground); 1435 dest.writeInt(mStatusBarColor); 1436 dest.writeInt(mNavigationBarColor); 1437 if (mIconFilename == null) { 1438 dest.writeInt(0); 1439 } else { 1440 dest.writeInt(1); 1441 dest.writeString(mIconFilename); 1442 } 1443 } 1444 1445 public void readFromParcel(Parcel source) { 1446 mLabel = source.readInt() > 0 ? source.readString() : null; 1447 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1448 mColorPrimary = source.readInt(); 1449 mColorBackground = source.readInt(); 1450 mStatusBarColor = source.readInt(); 1451 mNavigationBarColor = source.readInt(); 1452 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1453 } 1454 1455 public static final Creator<TaskDescription> CREATOR 1456 = new Creator<TaskDescription>() { 1457 public TaskDescription createFromParcel(Parcel source) { 1458 return new TaskDescription(source); 1459 } 1460 public TaskDescription[] newArray(int size) { 1461 return new TaskDescription[size]; 1462 } 1463 }; 1464 1465 @Override 1466 public String toString() { 1467 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1468 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1469 " colorBackground: " + mColorBackground + 1470 " statusBarColor: " + mColorBackground + 1471 " navigationBarColor: " + mNavigationBarColor; 1472 } 1473 } 1474 1475 /** 1476 * Information you can retrieve about tasks that the user has most recently 1477 * started or visited. 1478 */ 1479 public static class RecentTaskInfo implements Parcelable { 1480 /** 1481 * If this task is currently running, this is the identifier for it. 1482 * If it is not running, this will be -1. 1483 */ 1484 public int id; 1485 1486 /** 1487 * The true identifier of this task, valid even if it is not running. 1488 */ 1489 public int persistentId; 1490 1491 /** 1492 * The original Intent used to launch the task. You can use this 1493 * Intent to re-launch the task (if it is no longer running) or bring 1494 * the current task to the front. 1495 */ 1496 public Intent baseIntent; 1497 1498 /** 1499 * If this task was started from an alias, this is the actual 1500 * activity component that was initially started; the component of 1501 * the baseIntent in this case is the name of the actual activity 1502 * implementation that the alias referred to. Otherwise, this is null. 1503 */ 1504 public ComponentName origActivity; 1505 1506 /** 1507 * The actual activity component that started the task. 1508 * @hide 1509 */ 1510 @Nullable 1511 public ComponentName realActivity; 1512 1513 /** 1514 * Description of the task's last state. 1515 */ 1516 public CharSequence description; 1517 1518 /** 1519 * The id of the ActivityStack this Task was on most recently. 1520 * @hide 1521 */ 1522 public int stackId; 1523 1524 /** 1525 * The id of the user the task was running as. 1526 * @hide 1527 */ 1528 public int userId; 1529 1530 /** 1531 * The first time this task was active. 1532 * @hide 1533 */ 1534 public long firstActiveTime; 1535 1536 /** 1537 * The last time this task was active. 1538 * @hide 1539 */ 1540 public long lastActiveTime; 1541 1542 /** 1543 * The recent activity values for the highest activity in the stack to have set the values. 1544 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1545 */ 1546 public TaskDescription taskDescription; 1547 1548 /** 1549 * Task affiliation for grouping with other tasks. 1550 */ 1551 public int affiliatedTaskId; 1552 1553 /** 1554 * Task affiliation color of the source task with the affiliated task id. 1555 * 1556 * @hide 1557 */ 1558 public int affiliatedTaskColor; 1559 1560 /** 1561 * The component launched as the first activity in the task. 1562 * This can be considered the "application" of this task. 1563 */ 1564 public ComponentName baseActivity; 1565 1566 /** 1567 * The activity component at the top of the history stack of the task. 1568 * This is what the user is currently doing. 1569 */ 1570 public ComponentName topActivity; 1571 1572 /** 1573 * Number of activities in this task. 1574 */ 1575 public int numActivities; 1576 1577 /** 1578 * The bounds of the task. 1579 * @hide 1580 */ 1581 public Rect bounds; 1582 1583 /** 1584 * True if the task can go in the docked stack. 1585 * @hide 1586 */ 1587 public boolean supportsSplitScreenMultiWindow; 1588 1589 /** 1590 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1591 * @hide 1592 */ 1593 public int resizeMode; 1594 1595 public RecentTaskInfo() { 1596 } 1597 1598 @Override 1599 public int describeContents() { 1600 return 0; 1601 } 1602 1603 @Override 1604 public void writeToParcel(Parcel dest, int flags) { 1605 dest.writeInt(id); 1606 dest.writeInt(persistentId); 1607 if (baseIntent != null) { 1608 dest.writeInt(1); 1609 baseIntent.writeToParcel(dest, 0); 1610 } else { 1611 dest.writeInt(0); 1612 } 1613 ComponentName.writeToParcel(origActivity, dest); 1614 ComponentName.writeToParcel(realActivity, dest); 1615 TextUtils.writeToParcel(description, dest, 1616 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1617 if (taskDescription != null) { 1618 dest.writeInt(1); 1619 taskDescription.writeToParcel(dest, 0); 1620 } else { 1621 dest.writeInt(0); 1622 } 1623 dest.writeInt(stackId); 1624 dest.writeInt(userId); 1625 dest.writeLong(firstActiveTime); 1626 dest.writeLong(lastActiveTime); 1627 dest.writeInt(affiliatedTaskId); 1628 dest.writeInt(affiliatedTaskColor); 1629 ComponentName.writeToParcel(baseActivity, dest); 1630 ComponentName.writeToParcel(topActivity, dest); 1631 dest.writeInt(numActivities); 1632 if (bounds != null) { 1633 dest.writeInt(1); 1634 bounds.writeToParcel(dest, 0); 1635 } else { 1636 dest.writeInt(0); 1637 } 1638 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1639 dest.writeInt(resizeMode); 1640 } 1641 1642 public void readFromParcel(Parcel source) { 1643 id = source.readInt(); 1644 persistentId = source.readInt(); 1645 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1646 origActivity = ComponentName.readFromParcel(source); 1647 realActivity = ComponentName.readFromParcel(source); 1648 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1649 taskDescription = source.readInt() > 0 ? 1650 TaskDescription.CREATOR.createFromParcel(source) : null; 1651 stackId = source.readInt(); 1652 userId = source.readInt(); 1653 firstActiveTime = source.readLong(); 1654 lastActiveTime = source.readLong(); 1655 affiliatedTaskId = source.readInt(); 1656 affiliatedTaskColor = source.readInt(); 1657 baseActivity = ComponentName.readFromParcel(source); 1658 topActivity = ComponentName.readFromParcel(source); 1659 numActivities = source.readInt(); 1660 bounds = source.readInt() > 0 ? 1661 Rect.CREATOR.createFromParcel(source) : null; 1662 supportsSplitScreenMultiWindow = source.readInt() == 1; 1663 resizeMode = source.readInt(); 1664 } 1665 1666 public static final Creator<RecentTaskInfo> CREATOR 1667 = new Creator<RecentTaskInfo>() { 1668 public RecentTaskInfo createFromParcel(Parcel source) { 1669 return new RecentTaskInfo(source); 1670 } 1671 public RecentTaskInfo[] newArray(int size) { 1672 return new RecentTaskInfo[size]; 1673 } 1674 }; 1675 1676 private RecentTaskInfo(Parcel source) { 1677 readFromParcel(source); 1678 } 1679 } 1680 1681 /** 1682 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1683 * that have set their 1684 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1685 */ 1686 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1687 1688 /** 1689 * Provides a list that does not contain any 1690 * recent tasks that currently are not available to the user. 1691 */ 1692 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1693 1694 /** 1695 * Provides a list that contains recent tasks for all 1696 * profiles of a user. 1697 * @hide 1698 */ 1699 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1700 1701 /** 1702 * Ignores all tasks that are on the home stack. 1703 * @hide 1704 */ 1705 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1706 1707 /** 1708 * Ignores the top task in the docked stack. 1709 * @hide 1710 */ 1711 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1712 1713 /** 1714 * Ignores all tasks that are on the pinned stack. 1715 * @hide 1716 */ 1717 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1718 1719 /** 1720 * <p></p>Return a list of the tasks that the user has recently launched, with 1721 * the most recent being first and older ones after in order. 1722 * 1723 * <p><b>Note: this method is only intended for debugging and presenting 1724 * task management user interfaces</b>. This should never be used for 1725 * core logic in an application, such as deciding between different 1726 * behaviors based on the information found here. Such uses are 1727 * <em>not</em> supported, and will likely break in the future. For 1728 * example, if multiple applications can be actively running at the 1729 * same time, assumptions made about the meaning of the data here for 1730 * purposes of control flow will be incorrect.</p> 1731 * 1732 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1733 * no longer available to third party applications: the introduction of 1734 * document-centric recents means 1735 * it can leak personal information to the caller. For backwards compatibility, 1736 * it will still return a small subset of its data: at least the caller's 1737 * own tasks (though see {@link #getAppTasks()} for the correct supported 1738 * way to retrieve that information), and possibly some other tasks 1739 * such as home that are known to not be sensitive. 1740 * 1741 * @param maxNum The maximum number of entries to return in the list. The 1742 * actual number returned may be smaller, depending on how many tasks the 1743 * user has started and the maximum number the system can remember. 1744 * @param flags Information about what to return. May be any combination 1745 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1746 * 1747 * @return Returns a list of RecentTaskInfo records describing each of 1748 * the recent tasks. 1749 */ 1750 @Deprecated 1751 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1752 throws SecurityException { 1753 try { 1754 return getService().getRecentTasks(maxNum, 1755 flags, UserHandle.myUserId()).getList(); 1756 } catch (RemoteException e) { 1757 throw e.rethrowFromSystemServer(); 1758 } 1759 } 1760 1761 /** 1762 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1763 * specific user. It requires holding 1764 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1765 * @param maxNum The maximum number of entries to return in the list. The 1766 * actual number returned may be smaller, depending on how many tasks the 1767 * user has started and the maximum number the system can remember. 1768 * @param flags Information about what to return. May be any combination 1769 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1770 * 1771 * @return Returns a list of RecentTaskInfo records describing each of 1772 * the recent tasks. Most recently activated tasks go first. 1773 * 1774 * @hide 1775 */ 1776 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1777 throws SecurityException { 1778 try { 1779 return getService().getRecentTasks(maxNum, 1780 flags, userId).getList(); 1781 } catch (RemoteException e) { 1782 throw e.rethrowFromSystemServer(); 1783 } 1784 } 1785 1786 /** 1787 * Information you can retrieve about a particular task that is currently 1788 * "running" in the system. Note that a running task does not mean the 1789 * given task actually has a process it is actively running in; it simply 1790 * means that the user has gone to it and never closed it, but currently 1791 * the system may have killed its process and is only holding on to its 1792 * last state in order to restart it when the user returns. 1793 */ 1794 public static class RunningTaskInfo implements Parcelable { 1795 /** 1796 * A unique identifier for this task. 1797 */ 1798 public int id; 1799 1800 /** 1801 * The stack that currently contains this task. 1802 * @hide 1803 */ 1804 public int stackId; 1805 1806 /** 1807 * The component launched as the first activity in the task. This can 1808 * be considered the "application" of this task. 1809 */ 1810 public ComponentName baseActivity; 1811 1812 /** 1813 * The activity component at the top of the history stack of the task. 1814 * This is what the user is currently doing. 1815 */ 1816 public ComponentName topActivity; 1817 1818 /** 1819 * Thumbnail representation of the task's current state. Currently 1820 * always null. 1821 */ 1822 public Bitmap thumbnail; 1823 1824 /** 1825 * Description of the task's current state. 1826 */ 1827 public CharSequence description; 1828 1829 /** 1830 * Number of activities in this task. 1831 */ 1832 public int numActivities; 1833 1834 /** 1835 * Number of activities that are currently running (not stopped 1836 * and persisted) in this task. 1837 */ 1838 public int numRunning; 1839 1840 /** 1841 * Last time task was run. For sorting. 1842 * @hide 1843 */ 1844 public long lastActiveTime; 1845 1846 /** 1847 * True if the task can go in the docked stack. 1848 * @hide 1849 */ 1850 public boolean supportsSplitScreenMultiWindow; 1851 1852 /** 1853 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1854 * @hide 1855 */ 1856 public int resizeMode; 1857 1858 public RunningTaskInfo() { 1859 } 1860 1861 public int describeContents() { 1862 return 0; 1863 } 1864 1865 public void writeToParcel(Parcel dest, int flags) { 1866 dest.writeInt(id); 1867 dest.writeInt(stackId); 1868 ComponentName.writeToParcel(baseActivity, dest); 1869 ComponentName.writeToParcel(topActivity, dest); 1870 if (thumbnail != null) { 1871 dest.writeInt(1); 1872 thumbnail.writeToParcel(dest, 0); 1873 } else { 1874 dest.writeInt(0); 1875 } 1876 TextUtils.writeToParcel(description, dest, 1877 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1878 dest.writeInt(numActivities); 1879 dest.writeInt(numRunning); 1880 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1881 dest.writeInt(resizeMode); 1882 } 1883 1884 public void readFromParcel(Parcel source) { 1885 id = source.readInt(); 1886 stackId = source.readInt(); 1887 baseActivity = ComponentName.readFromParcel(source); 1888 topActivity = ComponentName.readFromParcel(source); 1889 if (source.readInt() != 0) { 1890 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1891 } else { 1892 thumbnail = null; 1893 } 1894 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1895 numActivities = source.readInt(); 1896 numRunning = source.readInt(); 1897 supportsSplitScreenMultiWindow = source.readInt() != 0; 1898 resizeMode = source.readInt(); 1899 } 1900 1901 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1902 public RunningTaskInfo createFromParcel(Parcel source) { 1903 return new RunningTaskInfo(source); 1904 } 1905 public RunningTaskInfo[] newArray(int size) { 1906 return new RunningTaskInfo[size]; 1907 } 1908 }; 1909 1910 private RunningTaskInfo(Parcel source) { 1911 readFromParcel(source); 1912 } 1913 } 1914 1915 /** 1916 * Get the list of tasks associated with the calling application. 1917 * 1918 * @return The list of tasks associated with the application making this call. 1919 * @throws SecurityException 1920 */ 1921 public List<ActivityManager.AppTask> getAppTasks() { 1922 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1923 List<IBinder> appTasks; 1924 try { 1925 appTasks = getService().getAppTasks(mContext.getPackageName()); 1926 } catch (RemoteException e) { 1927 throw e.rethrowFromSystemServer(); 1928 } 1929 int numAppTasks = appTasks.size(); 1930 for (int i = 0; i < numAppTasks; i++) { 1931 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1932 } 1933 return tasks; 1934 } 1935 1936 /** 1937 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1938 * with {@link #addAppTask}. 1939 */ 1940 public Size getAppTaskThumbnailSize() { 1941 synchronized (this) { 1942 ensureAppTaskThumbnailSizeLocked(); 1943 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1944 } 1945 } 1946 1947 private void ensureAppTaskThumbnailSizeLocked() { 1948 if (mAppTaskThumbnailSize == null) { 1949 try { 1950 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1951 } catch (RemoteException e) { 1952 throw e.rethrowFromSystemServer(); 1953 } 1954 } 1955 } 1956 1957 /** 1958 * Add a new {@link AppTask} for the calling application. This will create a new 1959 * recents entry that is added to the <b>end</b> of all existing recents. 1960 * 1961 * @param activity The activity that is adding the entry. This is used to help determine 1962 * the context that the new recents entry will be in. 1963 * @param intent The Intent that describes the recents entry. This is the same Intent that 1964 * you would have used to launch the activity for it. In generally you will want to set 1965 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1966 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1967 * entry will exist without an activity, so it doesn't make sense to not retain it when 1968 * its activity disappears. The given Intent here also must have an explicit ComponentName 1969 * set on it. 1970 * @param description Optional additional description information. 1971 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1972 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1973 * recreated in your process, probably in a way you don't like, before the recents entry 1974 * is added. 1975 * 1976 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1977 * most likely cause of failure is that there is no more room for more tasks for your app. 1978 */ 1979 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1980 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1981 Point size; 1982 synchronized (this) { 1983 ensureAppTaskThumbnailSizeLocked(); 1984 size = mAppTaskThumbnailSize; 1985 } 1986 final int tw = thumbnail.getWidth(); 1987 final int th = thumbnail.getHeight(); 1988 if (tw != size.x || th != size.y) { 1989 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1990 1991 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1992 float scale; 1993 float dx = 0, dy = 0; 1994 if (tw * size.x > size.y * th) { 1995 scale = (float) size.x / (float) th; 1996 dx = (size.y - tw * scale) * 0.5f; 1997 } else { 1998 scale = (float) size.y / (float) tw; 1999 dy = (size.x - th * scale) * 0.5f; 2000 } 2001 Matrix matrix = new Matrix(); 2002 matrix.setScale(scale, scale); 2003 matrix.postTranslate((int) (dx + 0.5f), 0); 2004 2005 Canvas canvas = new Canvas(bm); 2006 canvas.drawBitmap(thumbnail, matrix, null); 2007 canvas.setBitmap(null); 2008 2009 thumbnail = bm; 2010 } 2011 if (description == null) { 2012 description = new TaskDescription(); 2013 } 2014 try { 2015 return getService().addAppTask(activity.getActivityToken(), 2016 intent, description, thumbnail); 2017 } catch (RemoteException e) { 2018 throw e.rethrowFromSystemServer(); 2019 } 2020 } 2021 2022 /** 2023 * Return a list of the tasks that are currently running, with 2024 * the most recent being first and older ones after in order. Note that 2025 * "running" does not mean any of the task's code is currently loaded or 2026 * activity -- the task may have been frozen by the system, so that it 2027 * can be restarted in its previous state when next brought to the 2028 * foreground. 2029 * 2030 * <p><b>Note: this method is only intended for debugging and presenting 2031 * task management user interfaces</b>. This should never be used for 2032 * core logic in an application, such as deciding between different 2033 * behaviors based on the information found here. Such uses are 2034 * <em>not</em> supported, and will likely break in the future. For 2035 * example, if multiple applications can be actively running at the 2036 * same time, assumptions made about the meaning of the data here for 2037 * purposes of control flow will be incorrect.</p> 2038 * 2039 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2040 * is no longer available to third party 2041 * applications: the introduction of document-centric recents means 2042 * it can leak person information to the caller. For backwards compatibility, 2043 * it will still retu rn a small subset of its data: at least the caller's 2044 * own tasks, and possibly some other tasks 2045 * such as home that are known to not be sensitive. 2046 * 2047 * @param maxNum The maximum number of entries to return in the list. The 2048 * actual number returned may be smaller, depending on how many tasks the 2049 * user has started. 2050 * 2051 * @return Returns a list of RunningTaskInfo records describing each of 2052 * the running tasks. 2053 */ 2054 @Deprecated 2055 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2056 throws SecurityException { 2057 try { 2058 return getService().getTasks(maxNum, 0); 2059 } catch (RemoteException e) { 2060 throw e.rethrowFromSystemServer(); 2061 } 2062 } 2063 2064 /** 2065 * Completely remove the given task. 2066 * 2067 * @param taskId Identifier of the task to be removed. 2068 * @return Returns true if the given task was found and removed. 2069 * 2070 * @hide 2071 */ 2072 public boolean removeTask(int taskId) throws SecurityException { 2073 try { 2074 return getService().removeTask(taskId); 2075 } catch (RemoteException e) { 2076 throw e.rethrowFromSystemServer(); 2077 } 2078 } 2079 2080 /** 2081 * Metadata related to the {@link TaskThumbnail}. 2082 * 2083 * @hide 2084 */ 2085 public static class TaskThumbnailInfo implements Parcelable { 2086 /** @hide */ 2087 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2088 private static final String ATTR_TASK_WIDTH = 2089 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2090 private static final String ATTR_TASK_HEIGHT = 2091 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2092 private static final String ATTR_SCREEN_ORIENTATION = 2093 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2094 2095 public int taskWidth; 2096 public int taskHeight; 2097 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2098 2099 public TaskThumbnailInfo() { 2100 // Do nothing 2101 } 2102 2103 private TaskThumbnailInfo(Parcel source) { 2104 readFromParcel(source); 2105 } 2106 2107 /** 2108 * Resets this info state to the initial state. 2109 * @hide 2110 */ 2111 public void reset() { 2112 taskWidth = 0; 2113 taskHeight = 0; 2114 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2115 } 2116 2117 /** 2118 * Copies from another ThumbnailInfo. 2119 */ 2120 public void copyFrom(TaskThumbnailInfo o) { 2121 taskWidth = o.taskWidth; 2122 taskHeight = o.taskHeight; 2123 screenOrientation = o.screenOrientation; 2124 } 2125 2126 /** @hide */ 2127 public void saveToXml(XmlSerializer out) throws IOException { 2128 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2129 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2130 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2131 } 2132 2133 /** @hide */ 2134 public void restoreFromXml(String attrName, String attrValue) { 2135 if (ATTR_TASK_WIDTH.equals(attrName)) { 2136 taskWidth = Integer.parseInt(attrValue); 2137 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2138 taskHeight = Integer.parseInt(attrValue); 2139 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2140 screenOrientation = Integer.parseInt(attrValue); 2141 } 2142 } 2143 2144 public int describeContents() { 2145 return 0; 2146 } 2147 2148 public void writeToParcel(Parcel dest, int flags) { 2149 dest.writeInt(taskWidth); 2150 dest.writeInt(taskHeight); 2151 dest.writeInt(screenOrientation); 2152 } 2153 2154 public void readFromParcel(Parcel source) { 2155 taskWidth = source.readInt(); 2156 taskHeight = source.readInt(); 2157 screenOrientation = source.readInt(); 2158 } 2159 2160 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2161 public TaskThumbnailInfo createFromParcel(Parcel source) { 2162 return new TaskThumbnailInfo(source); 2163 } 2164 public TaskThumbnailInfo[] newArray(int size) { 2165 return new TaskThumbnailInfo[size]; 2166 } 2167 }; 2168 } 2169 2170 /** @hide */ 2171 public static class TaskThumbnail implements Parcelable { 2172 public Bitmap mainThumbnail; 2173 public ParcelFileDescriptor thumbnailFileDescriptor; 2174 public TaskThumbnailInfo thumbnailInfo; 2175 2176 public TaskThumbnail() { 2177 } 2178 2179 private TaskThumbnail(Parcel source) { 2180 readFromParcel(source); 2181 } 2182 2183 public int describeContents() { 2184 if (thumbnailFileDescriptor != null) { 2185 return thumbnailFileDescriptor.describeContents(); 2186 } 2187 return 0; 2188 } 2189 2190 public void writeToParcel(Parcel dest, int flags) { 2191 if (mainThumbnail != null) { 2192 dest.writeInt(1); 2193 mainThumbnail.writeToParcel(dest, flags); 2194 } else { 2195 dest.writeInt(0); 2196 } 2197 if (thumbnailFileDescriptor != null) { 2198 dest.writeInt(1); 2199 thumbnailFileDescriptor.writeToParcel(dest, flags); 2200 } else { 2201 dest.writeInt(0); 2202 } 2203 if (thumbnailInfo != null) { 2204 dest.writeInt(1); 2205 thumbnailInfo.writeToParcel(dest, flags); 2206 } else { 2207 dest.writeInt(0); 2208 } 2209 } 2210 2211 public void readFromParcel(Parcel source) { 2212 if (source.readInt() != 0) { 2213 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2214 } else { 2215 mainThumbnail = null; 2216 } 2217 if (source.readInt() != 0) { 2218 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2219 } else { 2220 thumbnailFileDescriptor = null; 2221 } 2222 if (source.readInt() != 0) { 2223 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2224 } else { 2225 thumbnailInfo = null; 2226 } 2227 } 2228 2229 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2230 public TaskThumbnail createFromParcel(Parcel source) { 2231 return new TaskThumbnail(source); 2232 } 2233 public TaskThumbnail[] newArray(int size) { 2234 return new TaskThumbnail[size]; 2235 } 2236 }; 2237 } 2238 2239 /** 2240 * Represents a task snapshot. 2241 * @hide 2242 */ 2243 public static class TaskSnapshot implements Parcelable { 2244 2245 private final GraphicBuffer mSnapshot; 2246 private final int mOrientation; 2247 private final Rect mContentInsets; 2248 private final boolean mReducedResolution; 2249 private final float mScale; 2250 2251 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2252 boolean reducedResolution, float scale) { 2253 mSnapshot = snapshot; 2254 mOrientation = orientation; 2255 mContentInsets = new Rect(contentInsets); 2256 mReducedResolution = reducedResolution; 2257 mScale = scale; 2258 } 2259 2260 private TaskSnapshot(Parcel source) { 2261 mSnapshot = source.readParcelable(null /* classLoader */); 2262 mOrientation = source.readInt(); 2263 mContentInsets = source.readParcelable(null /* classLoader */); 2264 mReducedResolution = source.readBoolean(); 2265 mScale = source.readFloat(); 2266 } 2267 2268 /** 2269 * @return The graphic buffer representing the screenshot. 2270 */ 2271 public GraphicBuffer getSnapshot() { 2272 return mSnapshot; 2273 } 2274 2275 /** 2276 * @return The screen orientation the screenshot was taken in. 2277 */ 2278 public int getOrientation() { 2279 return mOrientation; 2280 } 2281 2282 /** 2283 * @return The system/content insets on the snapshot. These can be clipped off in order to 2284 * remove any areas behind system bars in the snapshot. 2285 */ 2286 public Rect getContentInsets() { 2287 return mContentInsets; 2288 } 2289 2290 /** 2291 * @return Whether this snapshot is a down-sampled version of the full resolution. 2292 */ 2293 public boolean isReducedResolution() { 2294 return mReducedResolution; 2295 } 2296 2297 /** 2298 * @return The scale this snapshot was taken in. 2299 */ 2300 public float getScale() { 2301 return mScale; 2302 } 2303 2304 @Override 2305 public int describeContents() { 2306 return 0; 2307 } 2308 2309 @Override 2310 public void writeToParcel(Parcel dest, int flags) { 2311 dest.writeParcelable(mSnapshot, 0); 2312 dest.writeInt(mOrientation); 2313 dest.writeParcelable(mContentInsets, 0); 2314 dest.writeBoolean(mReducedResolution); 2315 dest.writeFloat(mScale); 2316 } 2317 2318 @Override 2319 public String toString() { 2320 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2321 + " mContentInsets=" + mContentInsets.toShortString() 2322 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2323 } 2324 2325 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2326 public TaskSnapshot createFromParcel(Parcel source) { 2327 return new TaskSnapshot(source); 2328 } 2329 public TaskSnapshot[] newArray(int size) { 2330 return new TaskSnapshot[size]; 2331 } 2332 }; 2333 } 2334 2335 /** @hide */ 2336 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2337 try { 2338 return getService().getTaskThumbnail(id); 2339 } catch (RemoteException e) { 2340 throw e.rethrowFromSystemServer(); 2341 } 2342 } 2343 2344 /** 2345 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2346 * activity along with the task, so it is positioned immediately behind 2347 * the task. 2348 */ 2349 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2350 2351 /** 2352 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2353 * user-instigated action, so the current activity will not receive a 2354 * hint that the user is leaving. 2355 */ 2356 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2357 2358 /** 2359 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2360 * with a null options argument. 2361 * 2362 * @param taskId The identifier of the task to be moved, as found in 2363 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2364 * @param flags Additional operational flags, 0 or more of 2365 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2366 */ 2367 public void moveTaskToFront(int taskId, int flags) { 2368 moveTaskToFront(taskId, flags, null); 2369 } 2370 2371 /** 2372 * Ask that the task associated with a given task ID be moved to the 2373 * front of the stack, so it is now visible to the user. Requires that 2374 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2375 * or a SecurityException will be thrown. 2376 * 2377 * @param taskId The identifier of the task to be moved, as found in 2378 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2379 * @param flags Additional operational flags, 0 or more of 2380 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2381 * @param options Additional options for the operation, either null or 2382 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2383 * Context.startActivity(Intent, Bundle)}. 2384 */ 2385 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2386 try { 2387 getService().moveTaskToFront(taskId, flags, options); 2388 } catch (RemoteException e) { 2389 throw e.rethrowFromSystemServer(); 2390 } 2391 } 2392 2393 /** 2394 * Information you can retrieve about a particular Service that is 2395 * currently running in the system. 2396 */ 2397 public static class RunningServiceInfo implements Parcelable { 2398 /** 2399 * The service component. 2400 */ 2401 public ComponentName service; 2402 2403 /** 2404 * If non-zero, this is the process the service is running in. 2405 */ 2406 public int pid; 2407 2408 /** 2409 * The UID that owns this service. 2410 */ 2411 public int uid; 2412 2413 /** 2414 * The name of the process this service runs in. 2415 */ 2416 public String process; 2417 2418 /** 2419 * Set to true if the service has asked to run as a foreground process. 2420 */ 2421 public boolean foreground; 2422 2423 /** 2424 * The time when the service was first made active, either by someone 2425 * starting or binding to it. This 2426 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2427 */ 2428 public long activeSince; 2429 2430 /** 2431 * Set to true if this service has been explicitly started. 2432 */ 2433 public boolean started; 2434 2435 /** 2436 * Number of clients connected to the service. 2437 */ 2438 public int clientCount; 2439 2440 /** 2441 * Number of times the service's process has crashed while the service 2442 * is running. 2443 */ 2444 public int crashCount; 2445 2446 /** 2447 * The time when there was last activity in the service (either 2448 * explicit requests to start it or clients binding to it). This 2449 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2450 */ 2451 public long lastActivityTime; 2452 2453 /** 2454 * If non-zero, this service is not currently running, but scheduled to 2455 * restart at the given time. 2456 */ 2457 public long restarting; 2458 2459 /** 2460 * Bit for {@link #flags}: set if this service has been 2461 * explicitly started. 2462 */ 2463 public static final int FLAG_STARTED = 1<<0; 2464 2465 /** 2466 * Bit for {@link #flags}: set if the service has asked to 2467 * run as a foreground process. 2468 */ 2469 public static final int FLAG_FOREGROUND = 1<<1; 2470 2471 /** 2472 * Bit for {@link #flags}: set if the service is running in a 2473 * core system process. 2474 */ 2475 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2476 2477 /** 2478 * Bit for {@link #flags}: set if the service is running in a 2479 * persistent process. 2480 */ 2481 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2482 2483 /** 2484 * Running flags. 2485 */ 2486 public int flags; 2487 2488 /** 2489 * For special services that are bound to by system code, this is 2490 * the package that holds the binding. 2491 */ 2492 public String clientPackage; 2493 2494 /** 2495 * For special services that are bound to by system code, this is 2496 * a string resource providing a user-visible label for who the 2497 * client is. 2498 */ 2499 public int clientLabel; 2500 2501 public RunningServiceInfo() { 2502 } 2503 2504 public int describeContents() { 2505 return 0; 2506 } 2507 2508 public void writeToParcel(Parcel dest, int flags) { 2509 ComponentName.writeToParcel(service, dest); 2510 dest.writeInt(pid); 2511 dest.writeInt(uid); 2512 dest.writeString(process); 2513 dest.writeInt(foreground ? 1 : 0); 2514 dest.writeLong(activeSince); 2515 dest.writeInt(started ? 1 : 0); 2516 dest.writeInt(clientCount); 2517 dest.writeInt(crashCount); 2518 dest.writeLong(lastActivityTime); 2519 dest.writeLong(restarting); 2520 dest.writeInt(this.flags); 2521 dest.writeString(clientPackage); 2522 dest.writeInt(clientLabel); 2523 } 2524 2525 public void readFromParcel(Parcel source) { 2526 service = ComponentName.readFromParcel(source); 2527 pid = source.readInt(); 2528 uid = source.readInt(); 2529 process = source.readString(); 2530 foreground = source.readInt() != 0; 2531 activeSince = source.readLong(); 2532 started = source.readInt() != 0; 2533 clientCount = source.readInt(); 2534 crashCount = source.readInt(); 2535 lastActivityTime = source.readLong(); 2536 restarting = source.readLong(); 2537 flags = source.readInt(); 2538 clientPackage = source.readString(); 2539 clientLabel = source.readInt(); 2540 } 2541 2542 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2543 public RunningServiceInfo createFromParcel(Parcel source) { 2544 return new RunningServiceInfo(source); 2545 } 2546 public RunningServiceInfo[] newArray(int size) { 2547 return new RunningServiceInfo[size]; 2548 } 2549 }; 2550 2551 private RunningServiceInfo(Parcel source) { 2552 readFromParcel(source); 2553 } 2554 } 2555 2556 /** 2557 * Return a list of the services that are currently running. 2558 * 2559 * <p><b>Note: this method is only intended for debugging or implementing 2560 * service management type user interfaces.</b></p> 2561 * 2562 * @param maxNum The maximum number of entries to return in the list. The 2563 * actual number returned may be smaller, depending on how many services 2564 * are running. 2565 * 2566 * @return Returns a list of RunningServiceInfo records describing each of 2567 * the running tasks. 2568 */ 2569 public List<RunningServiceInfo> getRunningServices(int maxNum) 2570 throws SecurityException { 2571 try { 2572 return getService() 2573 .getServices(maxNum, 0); 2574 } catch (RemoteException e) { 2575 throw e.rethrowFromSystemServer(); 2576 } 2577 } 2578 2579 /** 2580 * Returns a PendingIntent you can start to show a control panel for the 2581 * given running service. If the service does not have a control panel, 2582 * null is returned. 2583 */ 2584 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2585 throws SecurityException { 2586 try { 2587 return getService() 2588 .getRunningServiceControlPanel(service); 2589 } catch (RemoteException e) { 2590 throw e.rethrowFromSystemServer(); 2591 } 2592 } 2593 2594 /** 2595 * Information you can retrieve about the available memory through 2596 * {@link ActivityManager#getMemoryInfo}. 2597 */ 2598 public static class MemoryInfo implements Parcelable { 2599 /** 2600 * The available memory on the system. This number should not 2601 * be considered absolute: due to the nature of the kernel, a significant 2602 * portion of this memory is actually in use and needed for the overall 2603 * system to run well. 2604 */ 2605 public long availMem; 2606 2607 /** 2608 * The total memory accessible by the kernel. This is basically the 2609 * RAM size of the device, not including below-kernel fixed allocations 2610 * like DMA buffers, RAM for the baseband CPU, etc. 2611 */ 2612 public long totalMem; 2613 2614 /** 2615 * The threshold of {@link #availMem} at which we consider memory to be 2616 * low and start killing background services and other non-extraneous 2617 * processes. 2618 */ 2619 public long threshold; 2620 2621 /** 2622 * Set to true if the system considers itself to currently be in a low 2623 * memory situation. 2624 */ 2625 public boolean lowMemory; 2626 2627 /** @hide */ 2628 public long hiddenAppThreshold; 2629 /** @hide */ 2630 public long secondaryServerThreshold; 2631 /** @hide */ 2632 public long visibleAppThreshold; 2633 /** @hide */ 2634 public long foregroundAppThreshold; 2635 2636 public MemoryInfo() { 2637 } 2638 2639 public int describeContents() { 2640 return 0; 2641 } 2642 2643 public void writeToParcel(Parcel dest, int flags) { 2644 dest.writeLong(availMem); 2645 dest.writeLong(totalMem); 2646 dest.writeLong(threshold); 2647 dest.writeInt(lowMemory ? 1 : 0); 2648 dest.writeLong(hiddenAppThreshold); 2649 dest.writeLong(secondaryServerThreshold); 2650 dest.writeLong(visibleAppThreshold); 2651 dest.writeLong(foregroundAppThreshold); 2652 } 2653 2654 public void readFromParcel(Parcel source) { 2655 availMem = source.readLong(); 2656 totalMem = source.readLong(); 2657 threshold = source.readLong(); 2658 lowMemory = source.readInt() != 0; 2659 hiddenAppThreshold = source.readLong(); 2660 secondaryServerThreshold = source.readLong(); 2661 visibleAppThreshold = source.readLong(); 2662 foregroundAppThreshold = source.readLong(); 2663 } 2664 2665 public static final Creator<MemoryInfo> CREATOR 2666 = new Creator<MemoryInfo>() { 2667 public MemoryInfo createFromParcel(Parcel source) { 2668 return new MemoryInfo(source); 2669 } 2670 public MemoryInfo[] newArray(int size) { 2671 return new MemoryInfo[size]; 2672 } 2673 }; 2674 2675 private MemoryInfo(Parcel source) { 2676 readFromParcel(source); 2677 } 2678 } 2679 2680 /** 2681 * Return general information about the memory state of the system. This 2682 * can be used to help decide how to manage your own memory, though note 2683 * that polling is not recommended and 2684 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2685 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2686 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2687 * level of your process as needed, which gives a better hint for how to 2688 * manage its memory. 2689 */ 2690 public void getMemoryInfo(MemoryInfo outInfo) { 2691 try { 2692 getService().getMemoryInfo(outInfo); 2693 } catch (RemoteException e) { 2694 throw e.rethrowFromSystemServer(); 2695 } 2696 } 2697 2698 /** 2699 * Information you can retrieve about an ActivityStack in the system. 2700 * @hide 2701 */ 2702 public static class StackInfo implements Parcelable { 2703 public int stackId; 2704 public Rect bounds = new Rect(); 2705 public int[] taskIds; 2706 public String[] taskNames; 2707 public Rect[] taskBounds; 2708 public int[] taskUserIds; 2709 public ComponentName topActivity; 2710 public int displayId; 2711 public int userId; 2712 public boolean visible; 2713 // Index of the stack in the display's stack list, can be used for comparison of stack order 2714 public int position; 2715 2716 @Override 2717 public int describeContents() { 2718 return 0; 2719 } 2720 2721 @Override 2722 public void writeToParcel(Parcel dest, int flags) { 2723 dest.writeInt(stackId); 2724 dest.writeInt(bounds.left); 2725 dest.writeInt(bounds.top); 2726 dest.writeInt(bounds.right); 2727 dest.writeInt(bounds.bottom); 2728 dest.writeIntArray(taskIds); 2729 dest.writeStringArray(taskNames); 2730 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2731 dest.writeInt(boundsCount); 2732 for (int i = 0; i < boundsCount; i++) { 2733 dest.writeInt(taskBounds[i].left); 2734 dest.writeInt(taskBounds[i].top); 2735 dest.writeInt(taskBounds[i].right); 2736 dest.writeInt(taskBounds[i].bottom); 2737 } 2738 dest.writeIntArray(taskUserIds); 2739 dest.writeInt(displayId); 2740 dest.writeInt(userId); 2741 dest.writeInt(visible ? 1 : 0); 2742 dest.writeInt(position); 2743 if (topActivity != null) { 2744 dest.writeInt(1); 2745 topActivity.writeToParcel(dest, 0); 2746 } else { 2747 dest.writeInt(0); 2748 } 2749 } 2750 2751 public void readFromParcel(Parcel source) { 2752 stackId = source.readInt(); 2753 bounds = new Rect( 2754 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2755 taskIds = source.createIntArray(); 2756 taskNames = source.createStringArray(); 2757 final int boundsCount = source.readInt(); 2758 if (boundsCount > 0) { 2759 taskBounds = new Rect[boundsCount]; 2760 for (int i = 0; i < boundsCount; i++) { 2761 taskBounds[i] = new Rect(); 2762 taskBounds[i].set( 2763 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2764 } 2765 } else { 2766 taskBounds = null; 2767 } 2768 taskUserIds = source.createIntArray(); 2769 displayId = source.readInt(); 2770 userId = source.readInt(); 2771 visible = source.readInt() > 0; 2772 position = source.readInt(); 2773 if (source.readInt() > 0) { 2774 topActivity = ComponentName.readFromParcel(source); 2775 } 2776 } 2777 2778 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2779 @Override 2780 public StackInfo createFromParcel(Parcel source) { 2781 return new StackInfo(source); 2782 } 2783 @Override 2784 public StackInfo[] newArray(int size) { 2785 return new StackInfo[size]; 2786 } 2787 }; 2788 2789 public StackInfo() { 2790 } 2791 2792 private StackInfo(Parcel source) { 2793 readFromParcel(source); 2794 } 2795 2796 public String toString(String prefix) { 2797 StringBuilder sb = new StringBuilder(256); 2798 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2799 sb.append(" bounds="); sb.append(bounds.toShortString()); 2800 sb.append(" displayId="); sb.append(displayId); 2801 sb.append(" userId="); sb.append(userId); 2802 sb.append("\n"); 2803 prefix = prefix + " "; 2804 for (int i = 0; i < taskIds.length; ++i) { 2805 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2806 sb.append(": "); sb.append(taskNames[i]); 2807 if (taskBounds != null) { 2808 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2809 } 2810 sb.append(" userId=").append(taskUserIds[i]); 2811 sb.append(" visible=").append(visible); 2812 if (topActivity != null) { 2813 sb.append(" topActivity=").append(topActivity); 2814 } 2815 sb.append("\n"); 2816 } 2817 return sb.toString(); 2818 } 2819 2820 @Override 2821 public String toString() { 2822 return toString(""); 2823 } 2824 } 2825 2826 /** 2827 * @hide 2828 */ 2829 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2830 try { 2831 return getService().clearApplicationUserData(packageName, 2832 observer, UserHandle.myUserId()); 2833 } catch (RemoteException e) { 2834 throw e.rethrowFromSystemServer(); 2835 } 2836 } 2837 2838 /** 2839 * Permits an application to erase its own data from disk. This is equivalent to 2840 * the user choosing to clear the app's data from within the device settings UI. It 2841 * erases all dynamic data associated with the app -- its private data and data in its 2842 * private area on external storage -- but does not remove the installed application 2843 * itself, nor any OBB files. 2844 * 2845 * @return {@code true} if the application successfully requested that the application's 2846 * data be erased; {@code false} otherwise. 2847 */ 2848 public boolean clearApplicationUserData() { 2849 return clearApplicationUserData(mContext.getPackageName(), null); 2850 } 2851 2852 2853 /** 2854 * Permits an application to get the persistent URI permissions granted to another. 2855 * 2856 * <p>Typically called by Settings. 2857 * 2858 * @param packageName application to look for the granted permissions 2859 * @return list of granted URI permissions 2860 * 2861 * @hide 2862 */ 2863 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2864 try { 2865 return getService().getGrantedUriPermissions(packageName, 2866 UserHandle.myUserId()); 2867 } catch (RemoteException e) { 2868 throw e.rethrowFromSystemServer(); 2869 } 2870 } 2871 2872 /** 2873 * Permits an application to clear the persistent URI permissions granted to another. 2874 * 2875 * <p>Typically called by Settings. 2876 * 2877 * @param packageName application to clear its granted permissions 2878 * 2879 * @hide 2880 */ 2881 public void clearGrantedUriPermissions(String packageName) { 2882 try { 2883 getService().clearGrantedUriPermissions(packageName, 2884 UserHandle.myUserId()); 2885 } catch (RemoteException e) { 2886 throw e.rethrowFromSystemServer(); 2887 } 2888 } 2889 2890 /** 2891 * Information you can retrieve about any processes that are in an error condition. 2892 */ 2893 public static class ProcessErrorStateInfo implements Parcelable { 2894 /** 2895 * Condition codes 2896 */ 2897 public static final int NO_ERROR = 0; 2898 public static final int CRASHED = 1; 2899 public static final int NOT_RESPONDING = 2; 2900 2901 /** 2902 * The condition that the process is in. 2903 */ 2904 public int condition; 2905 2906 /** 2907 * The process name in which the crash or error occurred. 2908 */ 2909 public String processName; 2910 2911 /** 2912 * The pid of this process; 0 if none 2913 */ 2914 public int pid; 2915 2916 /** 2917 * The kernel user-ID that has been assigned to this process; 2918 * currently this is not a unique ID (multiple applications can have 2919 * the same uid). 2920 */ 2921 public int uid; 2922 2923 /** 2924 * The activity name associated with the error, if known. May be null. 2925 */ 2926 public String tag; 2927 2928 /** 2929 * A short message describing the error condition. 2930 */ 2931 public String shortMsg; 2932 2933 /** 2934 * A long message describing the error condition. 2935 */ 2936 public String longMsg; 2937 2938 /** 2939 * The stack trace where the error originated. May be null. 2940 */ 2941 public String stackTrace; 2942 2943 /** 2944 * to be deprecated: This value will always be null. 2945 */ 2946 public byte[] crashData = null; 2947 2948 public ProcessErrorStateInfo() { 2949 } 2950 2951 @Override 2952 public int describeContents() { 2953 return 0; 2954 } 2955 2956 @Override 2957 public void writeToParcel(Parcel dest, int flags) { 2958 dest.writeInt(condition); 2959 dest.writeString(processName); 2960 dest.writeInt(pid); 2961 dest.writeInt(uid); 2962 dest.writeString(tag); 2963 dest.writeString(shortMsg); 2964 dest.writeString(longMsg); 2965 dest.writeString(stackTrace); 2966 } 2967 2968 public void readFromParcel(Parcel source) { 2969 condition = source.readInt(); 2970 processName = source.readString(); 2971 pid = source.readInt(); 2972 uid = source.readInt(); 2973 tag = source.readString(); 2974 shortMsg = source.readString(); 2975 longMsg = source.readString(); 2976 stackTrace = source.readString(); 2977 } 2978 2979 public static final Creator<ProcessErrorStateInfo> CREATOR = 2980 new Creator<ProcessErrorStateInfo>() { 2981 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2982 return new ProcessErrorStateInfo(source); 2983 } 2984 public ProcessErrorStateInfo[] newArray(int size) { 2985 return new ProcessErrorStateInfo[size]; 2986 } 2987 }; 2988 2989 private ProcessErrorStateInfo(Parcel source) { 2990 readFromParcel(source); 2991 } 2992 } 2993 2994 /** 2995 * Returns a list of any processes that are currently in an error condition. The result 2996 * will be null if all processes are running properly at this time. 2997 * 2998 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2999 * current error conditions (it will not return an empty list). This list ordering is not 3000 * specified. 3001 */ 3002 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3003 try { 3004 return getService().getProcessesInErrorState(); 3005 } catch (RemoteException e) { 3006 throw e.rethrowFromSystemServer(); 3007 } 3008 } 3009 3010 /** 3011 * Information you can retrieve about a running process. 3012 */ 3013 public static class RunningAppProcessInfo implements Parcelable { 3014 /** 3015 * The name of the process that this object is associated with 3016 */ 3017 public String processName; 3018 3019 /** 3020 * The pid of this process; 0 if none 3021 */ 3022 public int pid; 3023 3024 /** 3025 * The user id of this process. 3026 */ 3027 public int uid; 3028 3029 /** 3030 * All packages that have been loaded into the process. 3031 */ 3032 public String pkgList[]; 3033 3034 /** 3035 * Constant for {@link #flags}: this is an app that is unable to 3036 * correctly save its state when going to the background, 3037 * so it can not be killed while in the background. 3038 * @hide 3039 */ 3040 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3041 3042 /** 3043 * Constant for {@link #flags}: this process is associated with a 3044 * persistent system app. 3045 * @hide 3046 */ 3047 public static final int FLAG_PERSISTENT = 1<<1; 3048 3049 /** 3050 * Constant for {@link #flags}: this process is associated with a 3051 * persistent system app. 3052 * @hide 3053 */ 3054 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3055 3056 /** 3057 * Flags of information. May be any of 3058 * {@link #FLAG_CANT_SAVE_STATE}. 3059 * @hide 3060 */ 3061 public int flags; 3062 3063 /** 3064 * Last memory trim level reported to the process: corresponds to 3065 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3066 * ComponentCallbacks2.onTrimMemory(int)}. 3067 */ 3068 public int lastTrimLevel; 3069 3070 /** 3071 * Constant for {@link #importance}: This process is running the 3072 * foreground UI; that is, it is the thing currently at the top of the screen 3073 * that the user is interacting with. 3074 */ 3075 public static final int IMPORTANCE_FOREGROUND = 100; 3076 3077 /** 3078 * Constant for {@link #importance}: This process is running a foreground 3079 * service, for example to perform music playback even while the user is 3080 * not immediately in the app. This generally indicates that the process 3081 * is doing something the user actively cares about. 3082 */ 3083 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3084 3085 /** 3086 * Constant for {@link #importance}: This process is running the foreground 3087 * UI, but the device is asleep so it is not visible to the user. This means 3088 * the user is not really aware of the process, because they can not see or 3089 * interact with it, but it is quite important because it what they expect to 3090 * return to once unlocking the device. 3091 */ 3092 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3093 3094 /** 3095 * Constant for {@link #importance}: This process is running something 3096 * that is actively visible to the user, though not in the immediate 3097 * foreground. This may be running a window that is behind the current 3098 * foreground (so paused and with its state saved, not interacting with 3099 * the user, but visible to them to some degree); it may also be running 3100 * other services under the system's control that it inconsiders important. 3101 */ 3102 public static final int IMPORTANCE_VISIBLE = 200; 3103 3104 /** 3105 * Constant for {@link #importance}: This process is not something the user 3106 * is directly aware of, but is otherwise perceptable to them to some degree. 3107 */ 3108 public static final int IMPORTANCE_PERCEPTIBLE = 130; 3109 3110 /** 3111 * Constant for {@link #importance}: This process is running an 3112 * application that can not save its state, and thus can't be killed 3113 * while in the background. 3114 * @hide 3115 */ 3116 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 3117 3118 /** 3119 * Constant for {@link #importance}: This process is contains services 3120 * that should remain running. These are background services apps have 3121 * started, not something the user is aware of, so they may be killed by 3122 * the system relatively freely (though it is generally desired that they 3123 * stay running as long as they want to). 3124 */ 3125 public static final int IMPORTANCE_SERVICE = 300; 3126 3127 /** 3128 * Constant for {@link #importance}: This process process contains 3129 * cached code that is expendable, not actively running any app components 3130 * we care about. 3131 */ 3132 public static final int IMPORTANCE_CACHED = 400; 3133 3134 /** 3135 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3136 */ 3137 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3138 3139 /** 3140 * Constant for {@link #importance}: This process is empty of any 3141 * actively running code. 3142 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3143 */ 3144 @Deprecated 3145 public static final int IMPORTANCE_EMPTY = 500; 3146 3147 /** 3148 * Constant for {@link #importance}: This process does not exist. 3149 */ 3150 public static final int IMPORTANCE_GONE = 1000; 3151 3152 /** @hide */ 3153 public static int procStateToImportance(int procState) { 3154 if (procState == PROCESS_STATE_NONEXISTENT) { 3155 return IMPORTANCE_GONE; 3156 } else if (procState >= PROCESS_STATE_HOME) { 3157 return IMPORTANCE_CACHED; 3158 } else if (procState >= PROCESS_STATE_SERVICE) { 3159 return IMPORTANCE_SERVICE; 3160 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3161 return IMPORTANCE_CANT_SAVE_STATE; 3162 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3163 return IMPORTANCE_PERCEPTIBLE; 3164 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3165 return IMPORTANCE_VISIBLE; 3166 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3167 return IMPORTANCE_TOP_SLEEPING; 3168 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3169 return IMPORTANCE_FOREGROUND_SERVICE; 3170 } else { 3171 return IMPORTANCE_FOREGROUND; 3172 } 3173 } 3174 3175 /** @hide */ 3176 public static int importanceToProcState(int importance) { 3177 if (importance == IMPORTANCE_GONE) { 3178 return PROCESS_STATE_NONEXISTENT; 3179 } else if (importance >= IMPORTANCE_CACHED) { 3180 return PROCESS_STATE_HOME; 3181 } else if (importance >= IMPORTANCE_SERVICE) { 3182 return PROCESS_STATE_SERVICE; 3183 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3184 return PROCESS_STATE_HEAVY_WEIGHT; 3185 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3186 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3187 } else if (importance >= IMPORTANCE_VISIBLE) { 3188 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3189 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3190 return PROCESS_STATE_TOP_SLEEPING; 3191 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3192 return PROCESS_STATE_FOREGROUND_SERVICE; 3193 } else { 3194 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3195 } 3196 } 3197 3198 /** 3199 * The relative importance level that the system places on this 3200 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3201 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, or 3202 * {@link #IMPORTANCE_CACHED}. These 3203 * constants are numbered so that "more important" values are always 3204 * smaller than "less important" values. 3205 */ 3206 public int importance; 3207 3208 /** 3209 * An additional ordering within a particular {@link #importance} 3210 * category, providing finer-grained information about the relative 3211 * utility of processes within a category. This number means nothing 3212 * except that a smaller values are more recently used (and thus 3213 * more important). Currently an LRU value is only maintained for 3214 * the {@link #IMPORTANCE_CACHED} category, though others may 3215 * be maintained in the future. 3216 */ 3217 public int lru; 3218 3219 /** 3220 * Constant for {@link #importanceReasonCode}: nothing special has 3221 * been specified for the reason for this level. 3222 */ 3223 public static final int REASON_UNKNOWN = 0; 3224 3225 /** 3226 * Constant for {@link #importanceReasonCode}: one of the application's 3227 * content providers is being used by another process. The pid of 3228 * the client process is in {@link #importanceReasonPid} and the 3229 * target provider in this process is in 3230 * {@link #importanceReasonComponent}. 3231 */ 3232 public static final int REASON_PROVIDER_IN_USE = 1; 3233 3234 /** 3235 * Constant for {@link #importanceReasonCode}: one of the application's 3236 * content providers is being used by another process. The pid of 3237 * the client process is in {@link #importanceReasonPid} and the 3238 * target provider in this process is in 3239 * {@link #importanceReasonComponent}. 3240 */ 3241 public static final int REASON_SERVICE_IN_USE = 2; 3242 3243 /** 3244 * The reason for {@link #importance}, if any. 3245 */ 3246 public int importanceReasonCode; 3247 3248 /** 3249 * For the specified values of {@link #importanceReasonCode}, this 3250 * is the process ID of the other process that is a client of this 3251 * process. This will be 0 if no other process is using this one. 3252 */ 3253 public int importanceReasonPid; 3254 3255 /** 3256 * For the specified values of {@link #importanceReasonCode}, this 3257 * is the name of the component that is being used in this process. 3258 */ 3259 public ComponentName importanceReasonComponent; 3260 3261 /** 3262 * When {@link #importanceReasonPid} is non-0, this is the importance 3263 * of the other pid. @hide 3264 */ 3265 public int importanceReasonImportance; 3266 3267 /** 3268 * Current process state, as per PROCESS_STATE_* constants. 3269 * @hide 3270 */ 3271 public int processState; 3272 3273 public RunningAppProcessInfo() { 3274 importance = IMPORTANCE_FOREGROUND; 3275 importanceReasonCode = REASON_UNKNOWN; 3276 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3277 } 3278 3279 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3280 processName = pProcessName; 3281 pid = pPid; 3282 pkgList = pArr; 3283 } 3284 3285 public int describeContents() { 3286 return 0; 3287 } 3288 3289 public void writeToParcel(Parcel dest, int flags) { 3290 dest.writeString(processName); 3291 dest.writeInt(pid); 3292 dest.writeInt(uid); 3293 dest.writeStringArray(pkgList); 3294 dest.writeInt(this.flags); 3295 dest.writeInt(lastTrimLevel); 3296 dest.writeInt(importance); 3297 dest.writeInt(lru); 3298 dest.writeInt(importanceReasonCode); 3299 dest.writeInt(importanceReasonPid); 3300 ComponentName.writeToParcel(importanceReasonComponent, dest); 3301 dest.writeInt(importanceReasonImportance); 3302 dest.writeInt(processState); 3303 } 3304 3305 public void readFromParcel(Parcel source) { 3306 processName = source.readString(); 3307 pid = source.readInt(); 3308 uid = source.readInt(); 3309 pkgList = source.readStringArray(); 3310 flags = source.readInt(); 3311 lastTrimLevel = source.readInt(); 3312 importance = source.readInt(); 3313 lru = source.readInt(); 3314 importanceReasonCode = source.readInt(); 3315 importanceReasonPid = source.readInt(); 3316 importanceReasonComponent = ComponentName.readFromParcel(source); 3317 importanceReasonImportance = source.readInt(); 3318 processState = source.readInt(); 3319 } 3320 3321 public static final Creator<RunningAppProcessInfo> CREATOR = 3322 new Creator<RunningAppProcessInfo>() { 3323 public RunningAppProcessInfo createFromParcel(Parcel source) { 3324 return new RunningAppProcessInfo(source); 3325 } 3326 public RunningAppProcessInfo[] newArray(int size) { 3327 return new RunningAppProcessInfo[size]; 3328 } 3329 }; 3330 3331 private RunningAppProcessInfo(Parcel source) { 3332 readFromParcel(source); 3333 } 3334 } 3335 3336 /** 3337 * Returns a list of application processes installed on external media 3338 * that are running on the device. 3339 * 3340 * <p><b>Note: this method is only intended for debugging or building 3341 * a user-facing process management UI.</b></p> 3342 * 3343 * @return Returns a list of ApplicationInfo records, or null if none 3344 * This list ordering is not specified. 3345 * @hide 3346 */ 3347 public List<ApplicationInfo> getRunningExternalApplications() { 3348 try { 3349 return getService().getRunningExternalApplications(); 3350 } catch (RemoteException e) { 3351 throw e.rethrowFromSystemServer(); 3352 } 3353 } 3354 3355 /** 3356 * Sets the memory trim mode for a process and schedules a memory trim operation. 3357 * 3358 * <p><b>Note: this method is only intended for testing framework.</b></p> 3359 * 3360 * @return Returns true if successful. 3361 * @hide 3362 */ 3363 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3364 try { 3365 return getService().setProcessMemoryTrimLevel(process, userId, 3366 level); 3367 } catch (RemoteException e) { 3368 throw e.rethrowFromSystemServer(); 3369 } 3370 } 3371 3372 /** 3373 * Returns a list of application processes that are running on the device. 3374 * 3375 * <p><b>Note: this method is only intended for debugging or building 3376 * a user-facing process management UI.</b></p> 3377 * 3378 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3379 * running processes (it will not return an empty list). This list ordering is not 3380 * specified. 3381 */ 3382 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3383 try { 3384 return getService().getRunningAppProcesses(); 3385 } catch (RemoteException e) { 3386 throw e.rethrowFromSystemServer(); 3387 } 3388 } 3389 3390 /** 3391 * Return the importance of a given package name, based on the processes that are 3392 * currently running. The return value is one of the importance constants defined 3393 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3394 * processes that this package has code running inside of. If there are no processes 3395 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3396 * @hide 3397 */ 3398 @SystemApi @TestApi 3399 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3400 public int getPackageImportance(String packageName) { 3401 try { 3402 int procState = getService().getPackageProcessState(packageName, 3403 mContext.getOpPackageName()); 3404 return RunningAppProcessInfo.procStateToImportance(procState); 3405 } catch (RemoteException e) { 3406 throw e.rethrowFromSystemServer(); 3407 } 3408 } 3409 3410 /** 3411 * Return the importance of a given uid, based on the processes that are 3412 * currently running. The return value is one of the importance constants defined 3413 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3414 * processes that this uid has running. If there are no processes 3415 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3416 * @hide 3417 */ 3418 @SystemApi @TestApi 3419 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3420 public int getUidImportance(int uid) { 3421 try { 3422 int procState = getService().getUidProcessState(uid, 3423 mContext.getOpPackageName()); 3424 return RunningAppProcessInfo.procStateToImportance(procState); 3425 } catch (RemoteException e) { 3426 throw e.rethrowFromSystemServer(); 3427 } 3428 } 3429 3430 /** 3431 * Callback to get reports about changes to the importance of a uid. Use with 3432 * {@link #addOnUidImportanceListener}. 3433 * @hide 3434 */ 3435 @SystemApi @TestApi 3436 public interface OnUidImportanceListener { 3437 /** 3438 * The importance if a given uid has changed. Will be one of the importance 3439 * values in {@link RunningAppProcessInfo}; 3440 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3441 * when the uid is no longer running at all. This callback will happen on a thread 3442 * from a thread pool, not the main UI thread. 3443 * @param uid The uid whose importance has changed. 3444 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3445 */ 3446 void onUidImportance(int uid, int importance); 3447 } 3448 3449 /** 3450 * Start monitoring changes to the imoportance of uids running in the system. 3451 * @param listener The listener callback that will receive change reports. 3452 * @param importanceCutpoint The level of importance in which the caller is interested 3453 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3454 * is used here, you will receive a call each time a uids importance transitions between 3455 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3456 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3457 * 3458 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3459 * permission to use this feature.</p> 3460 * 3461 * @throws IllegalArgumentException If the listener is already registered. 3462 * @throws SecurityException If the caller does not hold 3463 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3464 * @hide 3465 */ 3466 @SystemApi @TestApi 3467 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3468 int importanceCutpoint) { 3469 synchronized (this) { 3470 if (mImportanceListeners.containsKey(listener)) { 3471 throw new IllegalArgumentException("Listener already registered: " + listener); 3472 } 3473 // TODO: implement the cut point in the system process to avoid IPCs. 3474 UidObserver observer = new UidObserver(listener); 3475 try { 3476 getService().registerUidObserver(observer, 3477 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3478 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3479 mContext.getOpPackageName()); 3480 } catch (RemoteException e) { 3481 throw e.rethrowFromSystemServer(); 3482 } 3483 mImportanceListeners.put(listener, observer); 3484 } 3485 } 3486 3487 /** 3488 * Remove an importance listener that was previously registered with 3489 * {@link #addOnUidImportanceListener}. 3490 * 3491 * @throws IllegalArgumentException If the listener is not registered. 3492 * @hide 3493 */ 3494 @SystemApi @TestApi 3495 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3496 synchronized (this) { 3497 UidObserver observer = mImportanceListeners.remove(listener); 3498 if (observer == null) { 3499 throw new IllegalArgumentException("Listener not registered: " + listener); 3500 } 3501 try { 3502 getService().unregisterUidObserver(observer); 3503 } catch (RemoteException e) { 3504 throw e.rethrowFromSystemServer(); 3505 } 3506 } 3507 } 3508 3509 /** 3510 * Return global memory state information for the calling process. This 3511 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3512 * only fields that will be filled in are 3513 * {@link RunningAppProcessInfo#pid}, 3514 * {@link RunningAppProcessInfo#uid}, 3515 * {@link RunningAppProcessInfo#lastTrimLevel}, 3516 * {@link RunningAppProcessInfo#importance}, 3517 * {@link RunningAppProcessInfo#lru}, and 3518 * {@link RunningAppProcessInfo#importanceReasonCode}. 3519 */ 3520 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3521 try { 3522 getService().getMyMemoryState(outState); 3523 } catch (RemoteException e) { 3524 throw e.rethrowFromSystemServer(); 3525 } 3526 } 3527 3528 /** 3529 * Return information about the memory usage of one or more processes. 3530 * 3531 * <p><b>Note: this method is only intended for debugging or building 3532 * a user-facing process management UI.</b></p> 3533 * 3534 * @param pids The pids of the processes whose memory usage is to be 3535 * retrieved. 3536 * @return Returns an array of memory information, one for each 3537 * requested pid. 3538 */ 3539 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3540 try { 3541 return getService().getProcessMemoryInfo(pids); 3542 } catch (RemoteException e) { 3543 throw e.rethrowFromSystemServer(); 3544 } 3545 } 3546 3547 /** 3548 * @deprecated This is now just a wrapper for 3549 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3550 * is no longer available to applications because it allows them to 3551 * break other applications by removing their alarms, stopping their 3552 * services, etc. 3553 */ 3554 @Deprecated 3555 public void restartPackage(String packageName) { 3556 killBackgroundProcesses(packageName); 3557 } 3558 3559 /** 3560 * Have the system immediately kill all background processes associated 3561 * with the given package. This is the same as the kernel killing those 3562 * processes to reclaim memory; the system will take care of restarting 3563 * these processes in the future as needed. 3564 * 3565 * <p>You must hold the permission 3566 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3567 * call this method. 3568 * 3569 * @param packageName The name of the package whose processes are to 3570 * be killed. 3571 */ 3572 public void killBackgroundProcesses(String packageName) { 3573 try { 3574 getService().killBackgroundProcesses(packageName, 3575 UserHandle.myUserId()); 3576 } catch (RemoteException e) { 3577 throw e.rethrowFromSystemServer(); 3578 } 3579 } 3580 3581 /** 3582 * Kills the specified UID. 3583 * @param uid The UID to kill. 3584 * @param reason The reason for the kill. 3585 * 3586 * @hide 3587 */ 3588 @SystemApi 3589 @RequiresPermission(Manifest.permission.KILL_UID) 3590 public void killUid(int uid, String reason) { 3591 try { 3592 getService().killUid(UserHandle.getAppId(uid), 3593 UserHandle.getUserId(uid), reason); 3594 } catch (RemoteException e) { 3595 throw e.rethrowFromSystemServer(); 3596 } 3597 } 3598 3599 /** 3600 * Have the system perform a force stop of everything associated with 3601 * the given application package. All processes that share its uid 3602 * will be killed, all services it has running stopped, all activities 3603 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3604 * broadcast will be sent, so that any of its registered alarms can 3605 * be stopped, notifications removed, etc. 3606 * 3607 * <p>You must hold the permission 3608 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3609 * call this method. 3610 * 3611 * @param packageName The name of the package to be stopped. 3612 * @param userId The user for which the running package is to be stopped. 3613 * 3614 * @hide This is not available to third party applications due to 3615 * it allowing them to break other applications by stopping their 3616 * services, removing their alarms, etc. 3617 */ 3618 public void forceStopPackageAsUser(String packageName, int userId) { 3619 try { 3620 getService().forceStopPackage(packageName, userId); 3621 } catch (RemoteException e) { 3622 throw e.rethrowFromSystemServer(); 3623 } 3624 } 3625 3626 /** 3627 * @see #forceStopPackageAsUser(String, int) 3628 * @hide 3629 */ 3630 @SystemApi 3631 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3632 public void forceStopPackage(String packageName) { 3633 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3634 } 3635 3636 /** 3637 * Get the device configuration attributes. 3638 */ 3639 public ConfigurationInfo getDeviceConfigurationInfo() { 3640 try { 3641 return getService().getDeviceConfigurationInfo(); 3642 } catch (RemoteException e) { 3643 throw e.rethrowFromSystemServer(); 3644 } 3645 } 3646 3647 /** 3648 * Get the preferred density of icons for the launcher. This is used when 3649 * custom drawables are created (e.g., for shortcuts). 3650 * 3651 * @return density in terms of DPI 3652 */ 3653 public int getLauncherLargeIconDensity() { 3654 final Resources res = mContext.getResources(); 3655 final int density = res.getDisplayMetrics().densityDpi; 3656 final int sw = res.getConfiguration().smallestScreenWidthDp; 3657 3658 if (sw < 600) { 3659 // Smaller than approx 7" tablets, use the regular icon size. 3660 return density; 3661 } 3662 3663 switch (density) { 3664 case DisplayMetrics.DENSITY_LOW: 3665 return DisplayMetrics.DENSITY_MEDIUM; 3666 case DisplayMetrics.DENSITY_MEDIUM: 3667 return DisplayMetrics.DENSITY_HIGH; 3668 case DisplayMetrics.DENSITY_TV: 3669 return DisplayMetrics.DENSITY_XHIGH; 3670 case DisplayMetrics.DENSITY_HIGH: 3671 return DisplayMetrics.DENSITY_XHIGH; 3672 case DisplayMetrics.DENSITY_XHIGH: 3673 return DisplayMetrics.DENSITY_XXHIGH; 3674 case DisplayMetrics.DENSITY_XXHIGH: 3675 return DisplayMetrics.DENSITY_XHIGH * 2; 3676 default: 3677 // The density is some abnormal value. Return some other 3678 // abnormal value that is a reasonable scaling of it. 3679 return (int)((density*1.5f)+.5f); 3680 } 3681 } 3682 3683 /** 3684 * Get the preferred launcher icon size. This is used when custom drawables 3685 * are created (e.g., for shortcuts). 3686 * 3687 * @return dimensions of square icons in terms of pixels 3688 */ 3689 public int getLauncherLargeIconSize() { 3690 return getLauncherLargeIconSizeInner(mContext); 3691 } 3692 3693 static int getLauncherLargeIconSizeInner(Context context) { 3694 final Resources res = context.getResources(); 3695 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3696 final int sw = res.getConfiguration().smallestScreenWidthDp; 3697 3698 if (sw < 600) { 3699 // Smaller than approx 7" tablets, use the regular icon size. 3700 return size; 3701 } 3702 3703 final int density = res.getDisplayMetrics().densityDpi; 3704 3705 switch (density) { 3706 case DisplayMetrics.DENSITY_LOW: 3707 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3708 case DisplayMetrics.DENSITY_MEDIUM: 3709 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3710 case DisplayMetrics.DENSITY_TV: 3711 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3712 case DisplayMetrics.DENSITY_HIGH: 3713 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3714 case DisplayMetrics.DENSITY_XHIGH: 3715 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3716 case DisplayMetrics.DENSITY_XXHIGH: 3717 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3718 default: 3719 // The density is some abnormal value. Return some other 3720 // abnormal value that is a reasonable scaling of it. 3721 return (int)((size*1.5f) + .5f); 3722 } 3723 } 3724 3725 /** 3726 * Returns "true" if the user interface is currently being messed with 3727 * by a monkey. 3728 */ 3729 public static boolean isUserAMonkey() { 3730 try { 3731 return getService().isUserAMonkey(); 3732 } catch (RemoteException e) { 3733 throw e.rethrowFromSystemServer(); 3734 } 3735 } 3736 3737 /** 3738 * Returns "true" if device is running in a test harness. 3739 */ 3740 public static boolean isRunningInTestHarness() { 3741 return SystemProperties.getBoolean("ro.test_harness", false); 3742 } 3743 3744 /** 3745 * Returns the launch count of each installed package. 3746 * 3747 * @hide 3748 */ 3749 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3750 try { 3751 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3752 ServiceManager.getService("usagestats")); 3753 if (usageStatsService == null) { 3754 return new HashMap<String, Integer>(); 3755 } 3756 3757 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3758 ActivityThread.currentPackageName()); 3759 if (allPkgUsageStats == null) { 3760 return new HashMap<String, Integer>(); 3761 } 3762 3763 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3764 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3765 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3766 } 3767 3768 return launchCounts; 3769 } catch (RemoteException e) { 3770 Log.w(TAG, "Could not query launch counts", e); 3771 return new HashMap<String, Integer>(); 3772 } 3773 }*/ 3774 3775 /** @hide */ 3776 public static int checkComponentPermission(String permission, int uid, 3777 int owningUid, boolean exported) { 3778 // Root, system server get to do everything. 3779 final int appId = UserHandle.getAppId(uid); 3780 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3781 return PackageManager.PERMISSION_GRANTED; 3782 } 3783 // Isolated processes don't get any permissions. 3784 if (UserHandle.isIsolated(uid)) { 3785 return PackageManager.PERMISSION_DENIED; 3786 } 3787 // If there is a uid that owns whatever is being accessed, it has 3788 // blanket access to it regardless of the permissions it requires. 3789 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3790 return PackageManager.PERMISSION_GRANTED; 3791 } 3792 // If the target is not exported, then nobody else can get to it. 3793 if (!exported) { 3794 /* 3795 RuntimeException here = new RuntimeException("here"); 3796 here.fillInStackTrace(); 3797 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3798 here); 3799 */ 3800 return PackageManager.PERMISSION_DENIED; 3801 } 3802 if (permission == null) { 3803 return PackageManager.PERMISSION_GRANTED; 3804 } 3805 try { 3806 return AppGlobals.getPackageManager() 3807 .checkUidPermission(permission, uid); 3808 } catch (RemoteException e) { 3809 throw e.rethrowFromSystemServer(); 3810 } 3811 } 3812 3813 /** @hide */ 3814 public static int checkUidPermission(String permission, int uid) { 3815 try { 3816 return AppGlobals.getPackageManager() 3817 .checkUidPermission(permission, uid); 3818 } catch (RemoteException e) { 3819 throw e.rethrowFromSystemServer(); 3820 } 3821 } 3822 3823 /** 3824 * @hide 3825 * Helper for dealing with incoming user arguments to system service calls. 3826 * Takes care of checking permissions and converting USER_CURRENT to the 3827 * actual current user. 3828 * 3829 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3830 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3831 * @param userId The user id argument supplied by the caller -- this is the user 3832 * they want to run as. 3833 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3834 * to get a USER_ALL returned and deal with it correctly. If false, 3835 * an exception will be thrown if USER_ALL is supplied. 3836 * @param requireFull If true, the caller must hold 3837 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3838 * different user than their current process; otherwise they must hold 3839 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3840 * @param name Optional textual name of the incoming call; only for generating error messages. 3841 * @param callerPackage Optional package name of caller; only for error messages. 3842 * 3843 * @return Returns the user ID that the call should run as. Will always be a concrete 3844 * user number, unless <var>allowAll</var> is true in which case it could also be 3845 * USER_ALL. 3846 */ 3847 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3848 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3849 if (UserHandle.getUserId(callingUid) == userId) { 3850 return userId; 3851 } 3852 try { 3853 return getService().handleIncomingUser(callingPid, 3854 callingUid, userId, allowAll, requireFull, name, callerPackage); 3855 } catch (RemoteException e) { 3856 throw e.rethrowFromSystemServer(); 3857 } 3858 } 3859 3860 /** 3861 * Gets the userId of the current foreground user. Requires system permissions. 3862 * @hide 3863 */ 3864 @SystemApi 3865 public static int getCurrentUser() { 3866 UserInfo ui; 3867 try { 3868 ui = getService().getCurrentUser(); 3869 return ui != null ? ui.id : 0; 3870 } catch (RemoteException e) { 3871 throw e.rethrowFromSystemServer(); 3872 } 3873 } 3874 3875 /** 3876 * @param userid the user's id. Zero indicates the default user. 3877 * @hide 3878 */ 3879 public boolean switchUser(int userid) { 3880 try { 3881 return getService().switchUser(userid); 3882 } catch (RemoteException e) { 3883 throw e.rethrowFromSystemServer(); 3884 } 3885 } 3886 3887 /** 3888 * Logs out current current foreground user by switching to the system user and stopping the 3889 * user being switched from. 3890 * @hide 3891 */ 3892 public static void logoutCurrentUser() { 3893 int currentUser = ActivityManager.getCurrentUser(); 3894 if (currentUser != UserHandle.USER_SYSTEM) { 3895 try { 3896 getService().switchUser(UserHandle.USER_SYSTEM); 3897 getService().stopUser(currentUser, /* force= */ false, null); 3898 } catch (RemoteException e) { 3899 e.rethrowFromSystemServer(); 3900 } 3901 } 3902 } 3903 3904 /** {@hide} */ 3905 public static final int FLAG_OR_STOPPED = 1 << 0; 3906 /** {@hide} */ 3907 public static final int FLAG_AND_LOCKED = 1 << 1; 3908 /** {@hide} */ 3909 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3910 /** {@hide} */ 3911 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3912 3913 /** 3914 * Return whether the given user is actively running. This means that 3915 * the user is in the "started" state, not "stopped" -- it is currently 3916 * allowed to run code through scheduled alarms, receiving broadcasts, 3917 * etc. A started user may be either the current foreground user or a 3918 * background user; the result here does not distinguish between the two. 3919 * @param userId the user's id. Zero indicates the default user. 3920 * @hide 3921 */ 3922 public boolean isUserRunning(int userId) { 3923 try { 3924 return getService().isUserRunning(userId, 0); 3925 } catch (RemoteException e) { 3926 throw e.rethrowFromSystemServer(); 3927 } 3928 } 3929 3930 /** {@hide} */ 3931 public boolean isVrModePackageEnabled(ComponentName component) { 3932 try { 3933 return getService().isVrModePackageEnabled(component); 3934 } catch (RemoteException e) { 3935 throw e.rethrowFromSystemServer(); 3936 } 3937 } 3938 3939 /** 3940 * Perform a system dump of various state associated with the given application 3941 * package name. This call blocks while the dump is being performed, so should 3942 * not be done on a UI thread. The data will be written to the given file 3943 * descriptor as text. An application must hold the 3944 * {@link android.Manifest.permission#DUMP} permission to make this call. 3945 * @param fd The file descriptor that the dump should be written to. The file 3946 * descriptor is <em>not</em> closed by this function; the caller continues to 3947 * own it. 3948 * @param packageName The name of the package that is to be dumped. 3949 */ 3950 public void dumpPackageState(FileDescriptor fd, String packageName) { 3951 dumpPackageStateStatic(fd, packageName); 3952 } 3953 3954 /** 3955 * @hide 3956 */ 3957 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3958 FileOutputStream fout = new FileOutputStream(fd); 3959 PrintWriter pw = new FastPrintWriter(fout); 3960 dumpService(pw, fd, "package", new String[] { packageName }); 3961 pw.println(); 3962 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3963 "-a", "package", packageName }); 3964 pw.println(); 3965 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3966 pw.println(); 3967 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3968 pw.println(); 3969 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3970 pw.println(); 3971 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3972 pw.flush(); 3973 } 3974 3975 /** 3976 * @hide 3977 */ 3978 public static boolean isSystemReady() { 3979 if (!sSystemReady) { 3980 if (ActivityThread.isSystem()) { 3981 sSystemReady = 3982 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3983 } else { 3984 // Since this is being called from outside system server, system should be 3985 // ready by now. 3986 sSystemReady = true; 3987 } 3988 } 3989 return sSystemReady; 3990 } 3991 3992 /** 3993 * @hide 3994 */ 3995 public static void broadcastStickyIntent(Intent intent, int userId) { 3996 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3997 } 3998 3999 /** 4000 * Convenience for sending a sticky broadcast. For internal use only. 4001 * 4002 * @hide 4003 */ 4004 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4005 try { 4006 getService().broadcastIntent( 4007 null, intent, null, null, Activity.RESULT_OK, null, null, 4008 null /*permission*/, appOp, null, false, true, userId); 4009 } catch (RemoteException ex) { 4010 } 4011 } 4012 4013 /** 4014 * @hide 4015 */ 4016 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4017 String tag) { 4018 try { 4019 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4020 sourceUid, sourcePkg, tag); 4021 } catch (RemoteException ex) { 4022 } 4023 } 4024 4025 /** 4026 * @hide 4027 */ 4028 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4029 try { 4030 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4031 } catch (RemoteException ex) { 4032 } 4033 } 4034 4035 /** 4036 * @hide 4037 */ 4038 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4039 try { 4040 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4041 } catch (RemoteException ex) { 4042 } 4043 } 4044 4045 /** 4046 * @hide 4047 */ 4048 public static IActivityManager getService() { 4049 return IActivityManagerSingleton.get(); 4050 } 4051 4052 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4053 new Singleton<IActivityManager>() { 4054 @Override 4055 protected IActivityManager create() { 4056 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4057 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4058 return am; 4059 } 4060 }; 4061 4062 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4063 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4064 IBinder service = ServiceManager.checkService(name); 4065 if (service == null) { 4066 pw.println(" (Service not found)"); 4067 return; 4068 } 4069 TransferPipe tp = null; 4070 try { 4071 pw.flush(); 4072 tp = new TransferPipe(); 4073 tp.setBufferPrefix(" "); 4074 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4075 tp.go(fd, 10000); 4076 } catch (Throwable e) { 4077 if (tp != null) { 4078 tp.kill(); 4079 } 4080 pw.println("Failure dumping service:"); 4081 e.printStackTrace(pw); 4082 } 4083 } 4084 4085 /** 4086 * Request that the system start watching for the calling process to exceed a pss 4087 * size as given here. Once called, the system will look for any occasions where it 4088 * sees the associated process with a larger pss size and, when this happens, automatically 4089 * pull a heap dump from it and allow the user to share the data. Note that this request 4090 * continues running even if the process is killed and restarted. To remove the watch, 4091 * use {@link #clearWatchHeapLimit()}. 4092 * 4093 * <p>This API only work if the calling process has been marked as 4094 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4095 * (userdebug or eng) build.</p> 4096 * 4097 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4098 * handle heap limit reports themselves.</p> 4099 * 4100 * @param pssSize The size in bytes to set the limit at. 4101 */ 4102 public void setWatchHeapLimit(long pssSize) { 4103 try { 4104 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4105 mContext.getPackageName()); 4106 } catch (RemoteException e) { 4107 throw e.rethrowFromSystemServer(); 4108 } 4109 } 4110 4111 /** 4112 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4113 * If your package has an activity handling this action, it will be launched with the 4114 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4115 * match the activty must support this action and a MIME type of "*/*". 4116 */ 4117 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4118 4119 /** 4120 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4121 */ 4122 public void clearWatchHeapLimit() { 4123 try { 4124 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4125 } catch (RemoteException e) { 4126 throw e.rethrowFromSystemServer(); 4127 } 4128 } 4129 4130 /** 4131 * @hide 4132 */ 4133 public void startLockTaskMode(int taskId) { 4134 try { 4135 getService().startLockTaskModeById(taskId); 4136 } catch (RemoteException e) { 4137 throw e.rethrowFromSystemServer(); 4138 } 4139 } 4140 4141 /** 4142 * @hide 4143 */ 4144 public void stopLockTaskMode() { 4145 try { 4146 getService().stopLockTaskMode(); 4147 } catch (RemoteException e) { 4148 throw e.rethrowFromSystemServer(); 4149 } 4150 } 4151 4152 /** 4153 * Return whether currently in lock task mode. When in this mode 4154 * no new tasks can be created or switched to. 4155 * 4156 * @see Activity#startLockTask() 4157 * 4158 * @deprecated Use {@link #getLockTaskModeState} instead. 4159 */ 4160 @Deprecated 4161 public boolean isInLockTaskMode() { 4162 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4163 } 4164 4165 /** 4166 * Return the current state of task locking. The three possible outcomes 4167 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4168 * and {@link #LOCK_TASK_MODE_PINNED}. 4169 * 4170 * @see Activity#startLockTask() 4171 */ 4172 public int getLockTaskModeState() { 4173 try { 4174 return getService().getLockTaskModeState(); 4175 } catch (RemoteException e) { 4176 throw e.rethrowFromSystemServer(); 4177 } 4178 } 4179 4180 /** 4181 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4182 * thread can be a VR thread in a process at a time, and that thread may be subject to 4183 * restrictions on the amount of time it can run. 4184 * 4185 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4186 * method will return to normal operation, and calling this method will do nothing while 4187 * persistent VR mode is enabled. 4188 * 4189 * To reset the VR thread for an application, a tid of 0 can be passed. 4190 * 4191 * @see android.os.Process#myTid() 4192 * @param tid tid of the VR thread 4193 */ 4194 public static void setVrThread(int tid) { 4195 try { 4196 getService().setVrThread(tid); 4197 } catch (RemoteException e) { 4198 // pass 4199 } 4200 } 4201 4202 /** 4203 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4204 * beyond a single process. It requires holding the 4205 * {@link android.Manifest.permission#RESTRICTED_VR_ACCESS} permission. Only one thread can be a 4206 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4207 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4208 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4209 * persistent VR thread loses its new scheduling priority; this method must be called again to 4210 * set the persistent thread. 4211 * 4212 * To reset the persistent VR thread, a tid of 0 can be passed. 4213 * 4214 * @see android.os.Process#myTid() 4215 * @param tid tid of the VR thread 4216 * @hide 4217 */ 4218 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4219 public static void setPersistentVrThread(int tid) { 4220 try { 4221 getService().setPersistentVrThread(tid); 4222 } catch (RemoteException e) { 4223 // pass 4224 } 4225 } 4226 4227 /** 4228 * The AppTask allows you to manage your own application's tasks. 4229 * See {@link android.app.ActivityManager#getAppTasks()} 4230 */ 4231 public static class AppTask { 4232 private IAppTask mAppTaskImpl; 4233 4234 /** @hide */ 4235 public AppTask(IAppTask task) { 4236 mAppTaskImpl = task; 4237 } 4238 4239 /** 4240 * Finishes all activities in this task and removes it from the recent tasks list. 4241 */ 4242 public void finishAndRemoveTask() { 4243 try { 4244 mAppTaskImpl.finishAndRemoveTask(); 4245 } catch (RemoteException e) { 4246 throw e.rethrowFromSystemServer(); 4247 } 4248 } 4249 4250 /** 4251 * Get the RecentTaskInfo associated with this task. 4252 * 4253 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4254 */ 4255 public RecentTaskInfo getTaskInfo() { 4256 try { 4257 return mAppTaskImpl.getTaskInfo(); 4258 } catch (RemoteException e) { 4259 throw e.rethrowFromSystemServer(); 4260 } 4261 } 4262 4263 /** 4264 * Bring this task to the foreground. If it contains activities, they will be 4265 * brought to the foreground with it and their instances re-created if needed. 4266 * If it doesn't contain activities, the root activity of the task will be 4267 * re-launched. 4268 */ 4269 public void moveToFront() { 4270 try { 4271 mAppTaskImpl.moveToFront(); 4272 } catch (RemoteException e) { 4273 throw e.rethrowFromSystemServer(); 4274 } 4275 } 4276 4277 /** 4278 * Start an activity in this task. Brings the task to the foreground. If this task 4279 * is not currently active (that is, its id < 0), then a new activity for the given 4280 * Intent will be launched as the root of the task and the task brought to the 4281 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4282 * an activity to launch in a new task, then a new activity for the given Intent will 4283 * be launched on top of the task and the task brought to the foreground. If this 4284 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4285 * or would otherwise be launched in to a new task, then the activity not launched but 4286 * this task be brought to the foreground and a new intent delivered to the top 4287 * activity if appropriate. 4288 * 4289 * <p>In other words, you generally want to use an Intent here that does not specify 4290 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4291 * and let the system do the right thing.</p> 4292 * 4293 * @param intent The Intent describing the new activity to be launched on the task. 4294 * @param options Optional launch options. 4295 * 4296 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4297 */ 4298 public void startActivity(Context context, Intent intent, Bundle options) { 4299 ActivityThread thread = ActivityThread.currentActivityThread(); 4300 thread.getInstrumentation().execStartActivityFromAppTask(context, 4301 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4302 } 4303 4304 /** 4305 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4306 * Intent of this AppTask. 4307 * 4308 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4309 * be set; otherwise, it will be cleared. 4310 */ 4311 public void setExcludeFromRecents(boolean exclude) { 4312 try { 4313 mAppTaskImpl.setExcludeFromRecents(exclude); 4314 } catch (RemoteException e) { 4315 throw e.rethrowFromSystemServer(); 4316 } 4317 } 4318 } 4319} 4320