ActivityManager.java revision 709904f8003a7122e185cfd32d1209e0e6975b77
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.Build; 34import android.os.Build.VERSION_CODES; 35import android.os.IBinder; 36import android.os.ParcelFileDescriptor; 37 38import com.android.internal.app.procstats.ProcessStats; 39import com.android.internal.os.RoSystemProperties; 40import com.android.internal.os.TransferPipe; 41import com.android.internal.util.FastPrintWriter; 42import com.android.server.LocalServices; 43 44import android.content.ComponentName; 45import android.content.Context; 46import android.content.Intent; 47import android.content.UriPermission; 48import android.content.pm.ApplicationInfo; 49import android.content.pm.ConfigurationInfo; 50import android.content.pm.IPackageDataObserver; 51import android.content.pm.PackageManager; 52import android.content.pm.ParceledListSlice; 53import android.content.pm.UserInfo; 54import android.content.res.Resources; 55import android.graphics.Bitmap; 56import android.graphics.Color; 57import android.graphics.Rect; 58import android.os.Bundle; 59import android.os.Debug; 60import android.os.Handler; 61import android.os.Parcel; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import org.xmlpull.v1.XmlSerializer; 75 76import java.io.FileDescriptor; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.lang.annotation.Retention; 81import java.lang.annotation.RetentionPolicy; 82import java.util.ArrayList; 83import java.util.List; 84 85/** 86 * <p> 87 * This class gives information about, and interacts 88 * with, activities, services, and the containing 89 * process. 90 * </p> 91 * 92 * <p> 93 * A number of the methods in this class are for 94 * debugging or informational purposes and they should 95 * not be used to affect any runtime behavior of 96 * your app. These methods are called out as such in 97 * the method level documentation. 98 * </p> 99 * 100 *<p> 101 * Most application developers should not have the need to 102 * use this class, most of whose methods are for specialized 103 * use cases. However, a few methods are more broadly applicable. 104 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 105 * enables your app to detect whether it is running on a low-memory device, 106 * and behave accordingly. 107 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 108 * is for apps with reset-data functionality. 109 * </p> 110 * 111 * <p> 112 * In some special use cases, where an app interacts with 113 * its Task stack, the app may use the 114 * {@link android.app.ActivityManager.AppTask} and 115 * {@link android.app.ActivityManager.RecentTaskInfo} inner 116 * classes. However, in general, the methods in this class should 117 * be used for testing and debugging purposes only. 118 * </p> 119 */ 120public class ActivityManager { 121 private static String TAG = "ActivityManager"; 122 123 private static int gMaxRecentTasks = -1; 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 final Context mContext; 142 143 UidObserver(OnUidImportanceListener listener, Context clientContext) { 144 mListener = listener; 145 mContext = clientContext; 146 } 147 148 @Override 149 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 150 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 151 procState, mContext)); 152 } 153 154 @Override 155 public void onUidGone(int uid, boolean disabled) { 156 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 157 } 158 159 @Override 160 public void onUidActive(int uid) { 161 } 162 163 @Override 164 public void onUidIdle(int uid, boolean disabled) { 165 } 166 } 167 168 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 169 170 /** 171 * Defines acceptable types of bugreports. 172 * @hide 173 */ 174 @Retention(RetentionPolicy.SOURCE) 175 @IntDef({ 176 BUGREPORT_OPTION_FULL, 177 BUGREPORT_OPTION_INTERACTIVE, 178 BUGREPORT_OPTION_REMOTE, 179 BUGREPORT_OPTION_WEAR, 180 BUGREPORT_OPTION_TELEPHONY 181 }) 182 public @interface BugreportMode {} 183 /** 184 * Takes a bugreport without user interference (and hence causing less 185 * interference to the system), but includes all sections. 186 * @hide 187 */ 188 public static final int BUGREPORT_OPTION_FULL = 0; 189 /** 190 * Allows user to monitor progress and enter additional data; might not include all 191 * sections. 192 * @hide 193 */ 194 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 195 /** 196 * Takes a bugreport requested remotely by administrator of the Device Owner app, 197 * not the device's user. 198 * @hide 199 */ 200 public static final int BUGREPORT_OPTION_REMOTE = 2; 201 /** 202 * Takes a bugreport on a wearable device. 203 * @hide 204 */ 205 public static final int BUGREPORT_OPTION_WEAR = 3; 206 207 /** 208 * Takes a lightweight version of bugreport that only includes a few, urgent sections 209 * used to report telephony bugs. 210 * @hide 211 */ 212 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 213 214 /** 215 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 216 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 217 * uninstalled in lieu of the declaring one. The package named here must be 218 * signed with the same certificate as the one declaring the {@code <meta-data>}. 219 */ 220 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 221 222 /** 223 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 224 * @hide 225 */ 226 public static final int START_VOICE_HIDDEN_SESSION = -10; 227 228 /** 229 * Result for IActivityManager.startVoiceActivity: active session does not match 230 * the requesting token. 231 * @hide 232 */ 233 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 234 235 /** 236 * Result for IActivityManager.startActivity: trying to start a background user 237 * activity that shouldn't be displayed for all users. 238 * @hide 239 */ 240 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 241 242 /** 243 * Result for IActivityManager.startActivity: trying to start an activity under voice 244 * control when that activity does not support the VOICE category. 245 * @hide 246 */ 247 public static final int START_NOT_VOICE_COMPATIBLE = -7; 248 249 /** 250 * Result for IActivityManager.startActivity: an error where the 251 * start had to be canceled. 252 * @hide 253 */ 254 public static final int START_CANCELED = -6; 255 256 /** 257 * Result for IActivityManager.startActivity: an error where the 258 * thing being started is not an activity. 259 * @hide 260 */ 261 public static final int START_NOT_ACTIVITY = -5; 262 263 /** 264 * Result for IActivityManager.startActivity: an error where the 265 * caller does not have permission to start the activity. 266 * @hide 267 */ 268 public static final int START_PERMISSION_DENIED = -4; 269 270 /** 271 * Result for IActivityManager.startActivity: an error where the 272 * caller has requested both to forward a result and to receive 273 * a result. 274 * @hide 275 */ 276 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 277 278 /** 279 * Result for IActivityManager.startActivity: an error where the 280 * requested class is not found. 281 * @hide 282 */ 283 public static final int START_CLASS_NOT_FOUND = -2; 284 285 /** 286 * Result for IActivityManager.startActivity: an error where the 287 * given Intent could not be resolved to an activity. 288 * @hide 289 */ 290 public static final int START_INTENT_NOT_RESOLVED = -1; 291 292 /** 293 * Result for IActivityManaqer.startActivity: the activity was started 294 * successfully as normal. 295 * @hide 296 */ 297 public static final int START_SUCCESS = 0; 298 299 /** 300 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 301 * be executed if it is the recipient, and that is indeed the case. 302 * @hide 303 */ 304 public static final int START_RETURN_INTENT_TO_CALLER = 1; 305 306 /** 307 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 308 * a task was simply brought to the foreground. 309 * @hide 310 */ 311 public static final int START_TASK_TO_FRONT = 2; 312 313 /** 314 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 315 * the given Intent was given to the existing top activity. 316 * @hide 317 */ 318 public static final int START_DELIVERED_TO_TOP = 3; 319 320 /** 321 * Result for IActivityManaqer.startActivity: request was canceled because 322 * app switches are temporarily canceled to ensure the user's last request 323 * (such as pressing home) is performed. 324 * @hide 325 */ 326 public static final int START_SWITCHES_CANCELED = 4; 327 328 /** 329 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 330 * while in Lock Task Mode. 331 * @hide 332 */ 333 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 334 335 /** 336 * Flag for IActivityManaqer.startActivity: do special start mode where 337 * a new activity is launched only if it is needed. 338 * @hide 339 */ 340 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 341 342 /** 343 * Flag for IActivityManaqer.startActivity: launch the app for 344 * debugging. 345 * @hide 346 */ 347 public static final int START_FLAG_DEBUG = 1<<1; 348 349 /** 350 * Flag for IActivityManaqer.startActivity: launch the app for 351 * allocation tracking. 352 * @hide 353 */ 354 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 355 356 /** 357 * Flag for IActivityManaqer.startActivity: launch the app with 358 * native debugging support. 359 * @hide 360 */ 361 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 362 363 /** 364 * Result for IActivityManaqer.broadcastIntent: success! 365 * @hide 366 */ 367 public static final int BROADCAST_SUCCESS = 0; 368 369 /** 370 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 371 * a sticky intent without appropriate permission. 372 * @hide 373 */ 374 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 375 376 /** 377 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 378 * to a stopped user. Fail. 379 * @hide 380 */ 381 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 382 383 /** 384 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 385 * for a sendBroadcast operation. 386 * @hide 387 */ 388 public static final int INTENT_SENDER_BROADCAST = 1; 389 390 /** 391 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 392 * for a startActivity operation. 393 * @hide 394 */ 395 public static final int INTENT_SENDER_ACTIVITY = 2; 396 397 /** 398 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 399 * for an activity result operation. 400 * @hide 401 */ 402 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 403 404 /** 405 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 406 * for a startService operation. 407 * @hide 408 */ 409 public static final int INTENT_SENDER_SERVICE = 4; 410 411 /** 412 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 413 * for a startForegroundService operation. 414 * @hide 415 */ 416 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 417 418 /** @hide User operation call: success! */ 419 public static final int USER_OP_SUCCESS = 0; 420 421 /** @hide User operation call: given user id is not known. */ 422 public static final int USER_OP_UNKNOWN_USER = -1; 423 424 /** @hide User operation call: given user id is the current user, can't be stopped. */ 425 public static final int USER_OP_IS_CURRENT = -2; 426 427 /** @hide User operation call: system user can't be stopped. */ 428 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 429 430 /** @hide User operation call: one of related users cannot be stopped. */ 431 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 432 433 /** @hide Not a real process state. */ 434 public static final int PROCESS_STATE_UNKNOWN = -1; 435 436 /** @hide Process is a persistent system process. */ 437 public static final int PROCESS_STATE_PERSISTENT = 0; 438 439 /** @hide Process is a persistent system process and is doing UI. */ 440 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 441 442 /** @hide Process is hosting the current top activities. Note that this covers 443 * all activities that are visible to the user. */ 444 public static final int PROCESS_STATE_TOP = 2; 445 446 /** @hide Process is hosting a foreground service due to a system binding. */ 447 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 448 449 /** @hide Process is hosting a foreground service. */ 450 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 451 452 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 453 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 454 455 /** @hide Process is important to the user, and something they are aware of. */ 456 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 457 458 /** @hide Process is important to the user, but not something they are aware of. */ 459 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 460 461 /** @hide Process is in the background running a backup/restore operation. */ 462 public static final int PROCESS_STATE_BACKUP = 8; 463 464 /** @hide Process is in the background, but it can't restore its state so we want 465 * to try to avoid killing it. */ 466 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 467 468 /** @hide Process is in the background running a service. Unlike oom_adj, this level 469 * is used for both the normal running in background state and the executing 470 * operations state. */ 471 public static final int PROCESS_STATE_SERVICE = 10; 472 473 /** @hide Process is in the background running a receiver. Note that from the 474 * perspective of oom_adj receivers run at a higher foreground level, but for our 475 * prioritization here that is not necessary and putting them below services means 476 * many fewer changes in some process states as they receive broadcasts. */ 477 public static final int PROCESS_STATE_RECEIVER = 11; 478 479 /** @hide Process is in the background but hosts the home activity. */ 480 public static final int PROCESS_STATE_HOME = 12; 481 482 /** @hide Process is in the background but hosts the last shown activity. */ 483 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 484 485 /** @hide Process is being cached for later use and contains activities. */ 486 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 487 488 /** @hide Process is being cached for later use and is a client of another cached 489 * process that contains activities. */ 490 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 491 492 /** @hide Process is being cached for later use and is empty. */ 493 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 494 495 /** @hide Process does not exist. */ 496 public static final int PROCESS_STATE_NONEXISTENT = 17; 497 498 /** @hide The lowest process state number */ 499 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 500 501 /** @hide The highest process state number */ 502 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 503 504 /** @hide Should this process state be considered a background state? */ 505 public static final boolean isProcStateBackground(int procState) { 506 return procState >= PROCESS_STATE_BACKUP; 507 } 508 509 /** @hide requestType for assist context: only basic information. */ 510 public static final int ASSIST_CONTEXT_BASIC = 0; 511 512 /** @hide requestType for assist context: generate full AssistStructure. */ 513 public static final int ASSIST_CONTEXT_FULL = 1; 514 515 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 516 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 517 518 /** @hide Flag for registerUidObserver: report changes in process state. */ 519 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 520 521 /** @hide Flag for registerUidObserver: report uid gone. */ 522 public static final int UID_OBSERVER_GONE = 1<<1; 523 524 /** @hide Flag for registerUidObserver: report uid has become idle. */ 525 public static final int UID_OBSERVER_IDLE = 1<<2; 526 527 /** @hide Flag for registerUidObserver: report uid has become active. */ 528 public static final int UID_OBSERVER_ACTIVE = 1<<3; 529 530 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 531 public static final int APP_START_MODE_NORMAL = 0; 532 533 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 534 public static final int APP_START_MODE_DELAYED = 1; 535 536 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 537 * rigid errors (throwing exception). */ 538 public static final int APP_START_MODE_DELAYED_RIGID = 2; 539 540 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 541 * launches; this is the mode for ephemeral apps. */ 542 public static final int APP_START_MODE_DISABLED = 3; 543 544 /** 545 * Lock task mode is not active. 546 */ 547 public static final int LOCK_TASK_MODE_NONE = 0; 548 549 /** 550 * Full lock task mode is active. 551 */ 552 public static final int LOCK_TASK_MODE_LOCKED = 1; 553 554 /** 555 * App pinning mode is active. 556 */ 557 public static final int LOCK_TASK_MODE_PINNED = 2; 558 559 Point mAppTaskThumbnailSize; 560 561 /*package*/ ActivityManager(Context context, Handler handler) { 562 mContext = context; 563 } 564 565 /** 566 * Screen compatibility mode: the application most always run in 567 * compatibility mode. 568 * @hide 569 */ 570 public static final int COMPAT_MODE_ALWAYS = -1; 571 572 /** 573 * Screen compatibility mode: the application can never run in 574 * compatibility mode. 575 * @hide 576 */ 577 public static final int COMPAT_MODE_NEVER = -2; 578 579 /** 580 * Screen compatibility mode: unknown. 581 * @hide 582 */ 583 public static final int COMPAT_MODE_UNKNOWN = -3; 584 585 /** 586 * Screen compatibility mode: the application currently has compatibility 587 * mode disabled. 588 * @hide 589 */ 590 public static final int COMPAT_MODE_DISABLED = 0; 591 592 /** 593 * Screen compatibility mode: the application currently has compatibility 594 * mode enabled. 595 * @hide 596 */ 597 public static final int COMPAT_MODE_ENABLED = 1; 598 599 /** 600 * Screen compatibility mode: request to toggle the application's 601 * compatibility mode. 602 * @hide 603 */ 604 public static final int COMPAT_MODE_TOGGLE = 2; 605 606 /** @hide */ 607 public static class StackId { 608 /** Invalid stack ID. */ 609 public static final int INVALID_STACK_ID = -1; 610 611 /** First static stack ID. */ 612 public static final int FIRST_STATIC_STACK_ID = 0; 613 614 /** Home activity stack ID. */ 615 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 616 617 /** ID of stack where fullscreen activities are normally launched into. */ 618 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 619 620 /** ID of stack where freeform/resized activities are normally launched into. */ 621 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 622 623 /** ID of stack that occupies a dedicated region of the screen. */ 624 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 625 626 /** ID of stack that always on top (always visible) when it exist. */ 627 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 628 629 /** ID of stack that contains the Recents activity. */ 630 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 631 632 /** ID of stack that contains activities launched by the assistant. */ 633 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 634 635 /** Last static stack stack ID. */ 636 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 637 638 /** Start of ID range used by stacks that are created dynamically. */ 639 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 640 641 public static boolean isStaticStack(int stackId) { 642 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 643 } 644 645 public static boolean isDynamicStack(int stackId) { 646 return stackId >= FIRST_DYNAMIC_STACK_ID; 647 } 648 649 /** 650 * Returns true if the activities contained in the input stack display a shadow around 651 * their border. 652 */ 653 public static boolean hasWindowShadow(int stackId) { 654 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 655 } 656 657 /** 658 * Returns true if the activities contained in the input stack display a decor view. 659 */ 660 public static boolean hasWindowDecor(int stackId) { 661 return stackId == FREEFORM_WORKSPACE_STACK_ID; 662 } 663 664 /** 665 * Returns true if the tasks contained in the stack can be resized independently of the 666 * stack. 667 */ 668 public static boolean isTaskResizeAllowed(int stackId) { 669 return stackId == FREEFORM_WORKSPACE_STACK_ID; 670 } 671 672 /** Returns true if the task bounds should persist across power cycles. */ 673 public static boolean persistTaskBounds(int stackId) { 674 return stackId == FREEFORM_WORKSPACE_STACK_ID; 675 } 676 677 /** 678 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 679 */ 680 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 681 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 682 } 683 684 /** 685 * Returns true if we try to maintain focus in the current stack when the top activity 686 * finishes. 687 */ 688 public static boolean keepFocusInStackIfPossible(int stackId) { 689 return stackId == FREEFORM_WORKSPACE_STACK_ID 690 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 691 } 692 693 /** 694 * Returns true if Stack size is affected by the docked stack changing size. 695 */ 696 public static boolean isResizeableByDockedStack(int stackId) { 697 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 698 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 699 } 700 701 /** 702 * Returns true if the size of tasks in the input stack are affected by the docked stack 703 * changing size. 704 */ 705 public static boolean isTaskResizeableByDockedStack(int stackId) { 706 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 707 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 708 && stackId != ASSISTANT_STACK_ID; 709 } 710 711 /** 712 * Returns true if the input stack is affected by drag resizing. 713 */ 714 public static boolean isStackAffectedByDragResizing(int stackId) { 715 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 716 && stackId != ASSISTANT_STACK_ID; 717 } 718 719 /** 720 * Returns true if the windows of tasks being moved to the target stack from the source 721 * stack should be replaced, meaning that window manager will keep the old window around 722 * until the new is ready. 723 */ 724 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 725 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 726 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 727 } 728 729 /** 730 * Return whether a stackId is a stack containing floating windows. Floating windows 731 * are laid out differently as they are allowed to extend past the display bounds 732 * without overscan insets. 733 */ 734 public static boolean tasksAreFloating(int stackId) { 735 return stackId == FREEFORM_WORKSPACE_STACK_ID 736 || stackId == PINNED_STACK_ID; 737 } 738 739 /** 740 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 741 * are generally fullscreen stacks. 742 */ 743 public static boolean isBackdropToTranslucentActivity(int stackId) { 744 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 745 || stackId == ASSISTANT_STACK_ID; 746 } 747 748 /** 749 * Returns true if animation specs should be constructed for app transition that moves 750 * the task to the specified stack. 751 */ 752 public static boolean useAnimationSpecForAppTransition(int stackId) { 753 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 754 // reboots. 755 return stackId == FREEFORM_WORKSPACE_STACK_ID 756 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 757 || stackId == ASSISTANT_STACK_ID 758 || stackId == DOCKED_STACK_ID 759 || stackId == INVALID_STACK_ID; 760 } 761 762 /** 763 * Returns true if the windows in the stack can receive input keys. 764 */ 765 public static boolean canReceiveKeys(int stackId) { 766 return stackId != PINNED_STACK_ID; 767 } 768 769 /** 770 * Returns true if the stack can be visible above lockscreen. 771 */ 772 public static boolean isAllowedOverLockscreen(int stackId) { 773 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 774 stackId == ASSISTANT_STACK_ID; 775 } 776 777 /** 778 * Returns true if activities from stasks in the given {@param stackId} are allowed to 779 * enter picture-in-picture. 780 */ 781 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 782 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 783 stackId != RECENTS_STACK_ID; 784 } 785 786 public static boolean isAlwaysOnTop(int stackId) { 787 return stackId == PINNED_STACK_ID; 788 } 789 790 /** 791 * Returns true if the top task in the task is allowed to return home when finished and 792 * there are other tasks in the stack. 793 */ 794 public static boolean allowTopTaskToReturnHome(int stackId) { 795 return stackId != PINNED_STACK_ID; 796 } 797 798 /** 799 * Returns true if the stack should be resized to match the bounds specified by 800 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 801 */ 802 public static boolean resizeStackWithLaunchBounds(int stackId) { 803 return stackId == PINNED_STACK_ID; 804 } 805 806 /** 807 * Returns true if any visible windows belonging to apps in this stack should be kept on 808 * screen when the app is killed due to something like the low memory killer. 809 */ 810 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 811 return stackId != PINNED_STACK_ID; 812 } 813 814 /** 815 * Returns true if the backdrop on the client side should match the frame of the window. 816 * Returns false, if the backdrop should be fullscreen. 817 */ 818 public static boolean useWindowFrameForBackdrop(int stackId) { 819 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 820 } 821 822 /** 823 * Returns true if a window from the specified stack with {@param stackId} are normally 824 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 825 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 826 * etc. 827 */ 828 public static boolean normallyFullscreenWindows(int stackId) { 829 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 830 && stackId != DOCKED_STACK_ID; 831 } 832 833 /** 834 * Returns true if the input stack id should only be present on a device that supports 835 * multi-window mode. 836 * @see android.app.ActivityManager#supportsMultiWindow 837 */ 838 public static boolean isMultiWindowStack(int stackId) { 839 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 840 || stackId == DOCKED_STACK_ID; 841 } 842 843 /** 844 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 845 */ 846 public static boolean isHomeOrRecentsStack(int stackId) { 847 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 848 } 849 850 /** 851 * Returns true if activities contained in this stack can request visible behind by 852 * calling {@link Activity#requestVisibleBehind}. 853 * 854 * @deprecated This method's functionality is no longer supported as of 855 * {@link android.os.Build.VERSION_CODES#O} and will be removed in a future release. 856 */ 857 @Deprecated 858 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 859 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 860 stackId == ASSISTANT_STACK_ID; 861 } 862 863 /** 864 * Returns true if this stack may be scaled without resizing, and windows within may need 865 * to be configured as such. 866 */ 867 public static boolean windowsAreScaleable(int stackId) { 868 return stackId == PINNED_STACK_ID; 869 } 870 871 /** 872 * Returns true if windows in this stack should be given move animations by default. 873 */ 874 public static boolean hasMovementAnimations(int stackId) { 875 return stackId != PINNED_STACK_ID; 876 } 877 878 /** Returns true if the input stack and its content can affect the device orientation. */ 879 public static boolean canSpecifyOrientation(int stackId) { 880 return stackId == HOME_STACK_ID 881 || stackId == RECENTS_STACK_ID 882 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 883 || stackId == ASSISTANT_STACK_ID 884 || isDynamicStack(stackId); 885 } 886 } 887 888 /** 889 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 890 * specifies the position of the created docked stack at the top half of the screen if 891 * in portrait mode or at the left half of the screen if in landscape mode. 892 * @hide 893 */ 894 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 895 896 /** 897 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 898 * specifies the position of the created docked stack at the bottom half of the screen if 899 * in portrait mode or at the right half of the screen if in landscape mode. 900 * @hide 901 */ 902 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 903 904 /** 905 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 906 * that the resize doesn't need to preserve the window, and can be skipped if bounds 907 * is unchanged. This mode is used by window manager in most cases. 908 * @hide 909 */ 910 public static final int RESIZE_MODE_SYSTEM = 0; 911 912 /** 913 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 914 * that the resize should preserve the window if possible. 915 * @hide 916 */ 917 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 918 919 /** 920 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 921 * that the resize should be performed even if the bounds appears unchanged. 922 * @hide 923 */ 924 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 925 926 /** 927 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 928 * manager during a screen rotation. 929 * @hide 930 */ 931 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 932 933 /** 934 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 935 * resize is due to a drag action. 936 * @hide 937 */ 938 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 939 940 /** 941 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 942 * that the resize should preserve the window if possible, and should not be skipped 943 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 944 * is ending. 945 * @hide 946 */ 947 public static final int RESIZE_MODE_USER_FORCED = 948 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 949 950 /** @hide */ 951 public int getFrontActivityScreenCompatMode() { 952 try { 953 return getService().getFrontActivityScreenCompatMode(); 954 } catch (RemoteException e) { 955 throw e.rethrowFromSystemServer(); 956 } 957 } 958 959 /** @hide */ 960 public void setFrontActivityScreenCompatMode(int mode) { 961 try { 962 getService().setFrontActivityScreenCompatMode(mode); 963 } catch (RemoteException e) { 964 throw e.rethrowFromSystemServer(); 965 } 966 } 967 968 /** @hide */ 969 public int getPackageScreenCompatMode(String packageName) { 970 try { 971 return getService().getPackageScreenCompatMode(packageName); 972 } catch (RemoteException e) { 973 throw e.rethrowFromSystemServer(); 974 } 975 } 976 977 /** @hide */ 978 public void setPackageScreenCompatMode(String packageName, int mode) { 979 try { 980 getService().setPackageScreenCompatMode(packageName, mode); 981 } catch (RemoteException e) { 982 throw e.rethrowFromSystemServer(); 983 } 984 } 985 986 /** @hide */ 987 public boolean getPackageAskScreenCompat(String packageName) { 988 try { 989 return getService().getPackageAskScreenCompat(packageName); 990 } catch (RemoteException e) { 991 throw e.rethrowFromSystemServer(); 992 } 993 } 994 995 /** @hide */ 996 public void setPackageAskScreenCompat(String packageName, boolean ask) { 997 try { 998 getService().setPackageAskScreenCompat(packageName, ask); 999 } catch (RemoteException e) { 1000 throw e.rethrowFromSystemServer(); 1001 } 1002 } 1003 1004 /** 1005 * Return the approximate per-application memory class of the current 1006 * device. This gives you an idea of how hard a memory limit you should 1007 * impose on your application to let the overall system work best. The 1008 * returned value is in megabytes; the baseline Android memory class is 1009 * 16 (which happens to be the Java heap limit of those devices); some 1010 * device with more memory may return 24 or even higher numbers. 1011 */ 1012 public int getMemoryClass() { 1013 return staticGetMemoryClass(); 1014 } 1015 1016 /** @hide */ 1017 static public int staticGetMemoryClass() { 1018 // Really brain dead right now -- just take this from the configured 1019 // vm heap size, and assume it is in megabytes and thus ends with "m". 1020 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1021 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1022 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1023 } 1024 return staticGetLargeMemoryClass(); 1025 } 1026 1027 /** 1028 * Return the approximate per-application memory class of the current 1029 * device when an application is running with a large heap. This is the 1030 * space available for memory-intensive applications; most applications 1031 * should not need this amount of memory, and should instead stay with the 1032 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1033 * This may be the same size as {@link #getMemoryClass()} on memory 1034 * constrained devices, or it may be significantly larger on devices with 1035 * a large amount of available RAM. 1036 * 1037 * <p>The is the size of the application's Dalvik heap if it has 1038 * specified <code>android:largeHeap="true"</code> in its manifest. 1039 */ 1040 public int getLargeMemoryClass() { 1041 return staticGetLargeMemoryClass(); 1042 } 1043 1044 /** @hide */ 1045 static public int staticGetLargeMemoryClass() { 1046 // Really brain dead right now -- just take this from the configured 1047 // vm heap size, and assume it is in megabytes and thus ends with "m". 1048 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1049 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1050 } 1051 1052 /** 1053 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1054 * is ultimately up to the device configuration, but currently it generally means 1055 * something in the class of a 512MB device with about a 800x480 or less screen. 1056 * This is mostly intended to be used by apps to determine whether they should turn 1057 * off certain features that require more RAM. 1058 */ 1059 public boolean isLowRamDevice() { 1060 return isLowRamDeviceStatic(); 1061 } 1062 1063 /** @hide */ 1064 public static boolean isLowRamDeviceStatic() { 1065 return RoSystemProperties.CONFIG_LOW_RAM; 1066 } 1067 1068 /** 1069 * Used by persistent processes to determine if they are running on a 1070 * higher-end device so should be okay using hardware drawing acceleration 1071 * (which tends to consume a lot more RAM). 1072 * @hide 1073 */ 1074 static public boolean isHighEndGfx() { 1075 return !isLowRamDeviceStatic() && 1076 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1077 } 1078 1079 /** 1080 * Return the maximum number of recents entries that we will maintain and show. 1081 * @hide 1082 */ 1083 static public int getMaxRecentTasksStatic() { 1084 if (gMaxRecentTasks < 0) { 1085 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1086 } 1087 return gMaxRecentTasks; 1088 } 1089 1090 /** 1091 * Return the default limit on the number of recents that an app can make. 1092 * @hide 1093 */ 1094 static public int getDefaultAppRecentsLimitStatic() { 1095 return getMaxRecentTasksStatic() / 6; 1096 } 1097 1098 /** 1099 * Return the maximum limit on the number of recents that an app can make. 1100 * @hide 1101 */ 1102 static public int getMaxAppRecentsLimitStatic() { 1103 return getMaxRecentTasksStatic() / 2; 1104 } 1105 1106 /** 1107 * Returns true if the system supports at least one form of multi-window. 1108 * E.g. freeform, split-screen, picture-in-picture. 1109 * @hide 1110 */ 1111 static public boolean supportsMultiWindow() { 1112 return !isLowRamDeviceStatic() 1113 && Resources.getSystem().getBoolean( 1114 com.android.internal.R.bool.config_supportsMultiWindow); 1115 } 1116 1117 /** 1118 * Returns true if the system supports split screen multi-window. 1119 * @hide 1120 */ 1121 static public boolean supportsSplitScreenMultiWindow() { 1122 return supportsMultiWindow() 1123 && Resources.getSystem().getBoolean( 1124 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1125 } 1126 1127 /** 1128 * Return the number of actions that will be displayed in the picture-in-picture UI when the 1129 * user interacts with the activity currently in picture-in-picture mode. This number may change 1130 * if the global configuration changes (ie. if the device is plugged into an external display). 1131 * 1132 * TO BE REMOVED 1133 */ 1134 @Deprecated 1135 public static int getMaxNumPictureInPictureActions() { 1136 return 3; 1137 } 1138 1139 /** 1140 * Information you can set and retrieve about the current activity within the recent task list. 1141 */ 1142 public static class TaskDescription implements Parcelable { 1143 /** @hide */ 1144 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1145 private static final String ATTR_TASKDESCRIPTIONLABEL = 1146 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1147 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1148 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1149 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1150 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1151 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1152 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1153 1154 private String mLabel; 1155 private Bitmap mIcon; 1156 private String mIconFilename; 1157 private int mColorPrimary; 1158 private int mColorBackground; 1159 private int mStatusBarColor; 1160 private int mNavigationBarColor; 1161 1162 /** 1163 * Creates the TaskDescription to the specified values. 1164 * 1165 * @param label A label and description of the current state of this task. 1166 * @param icon An icon that represents the current state of this task. 1167 * @param colorPrimary A color to override the theme's primary color. This color must be 1168 * opaque. 1169 */ 1170 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1171 this(label, icon, null, colorPrimary, 0, 0, 0); 1172 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1173 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1174 } 1175 } 1176 1177 /** 1178 * Creates the TaskDescription to the specified values. 1179 * 1180 * @param label A label and description of the current state of this activity. 1181 * @param icon An icon that represents the current state of this activity. 1182 */ 1183 public TaskDescription(String label, Bitmap icon) { 1184 this(label, icon, null, 0, 0, 0, 0); 1185 } 1186 1187 /** 1188 * Creates the TaskDescription to the specified values. 1189 * 1190 * @param label A label and description of the current state of this activity. 1191 */ 1192 public TaskDescription(String label) { 1193 this(label, null, null, 0, 0, 0, 0); 1194 } 1195 1196 /** 1197 * Creates an empty TaskDescription. 1198 */ 1199 public TaskDescription() { 1200 this(null, null, null, 0, 0, 0, 0); 1201 } 1202 1203 /** @hide */ 1204 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1205 int colorBackground, int statusBarColor, int navigationBarColor) { 1206 mLabel = label; 1207 mIcon = icon; 1208 mIconFilename = iconFilename; 1209 mColorPrimary = colorPrimary; 1210 mColorBackground = colorBackground; 1211 mStatusBarColor = statusBarColor; 1212 mNavigationBarColor = navigationBarColor; 1213 } 1214 1215 /** 1216 * Creates a copy of another TaskDescription. 1217 */ 1218 public TaskDescription(TaskDescription td) { 1219 copyFrom(td); 1220 } 1221 1222 /** 1223 * Copies this the values from another TaskDescription. 1224 * @hide 1225 */ 1226 public void copyFrom(TaskDescription other) { 1227 mLabel = other.mLabel; 1228 mIcon = other.mIcon; 1229 mIconFilename = other.mIconFilename; 1230 mColorPrimary = other.mColorPrimary; 1231 mColorBackground = other.mColorBackground; 1232 mStatusBarColor = other.mStatusBarColor; 1233 mNavigationBarColor = other.mNavigationBarColor; 1234 } 1235 1236 /** 1237 * Copies this the values from another TaskDescription, but preserves the hidden fields 1238 * if they weren't set on {@code other} 1239 * @hide 1240 */ 1241 public void copyFromPreserveHiddenFields(TaskDescription other) { 1242 mLabel = other.mLabel; 1243 mIcon = other.mIcon; 1244 mIconFilename = other.mIconFilename; 1245 mColorPrimary = other.mColorPrimary; 1246 if (other.mColorBackground != 0) { 1247 mColorBackground = other.mColorBackground; 1248 } 1249 if (other.mStatusBarColor != 0) { 1250 mStatusBarColor = other.mStatusBarColor; 1251 } 1252 if (other.mNavigationBarColor != 0) { 1253 mNavigationBarColor = other.mNavigationBarColor; 1254 } 1255 } 1256 1257 private TaskDescription(Parcel source) { 1258 readFromParcel(source); 1259 } 1260 1261 /** 1262 * Sets the label for this task description. 1263 * @hide 1264 */ 1265 public void setLabel(String label) { 1266 mLabel = label; 1267 } 1268 1269 /** 1270 * Sets the primary color for this task description. 1271 * @hide 1272 */ 1273 public void setPrimaryColor(int primaryColor) { 1274 // Ensure that the given color is valid 1275 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1276 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1277 } 1278 mColorPrimary = primaryColor; 1279 } 1280 1281 /** 1282 * Sets the background color for this task description. 1283 * @hide 1284 */ 1285 public void setBackgroundColor(int backgroundColor) { 1286 // Ensure that the given color is valid 1287 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1288 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1289 } 1290 mColorBackground = backgroundColor; 1291 } 1292 1293 /** 1294 * @hide 1295 */ 1296 public void setStatusBarColor(int statusBarColor) { 1297 mStatusBarColor = statusBarColor; 1298 } 1299 1300 /** 1301 * @hide 1302 */ 1303 public void setNavigationBarColor(int navigationBarColor) { 1304 mNavigationBarColor = navigationBarColor; 1305 } 1306 1307 /** 1308 * Sets the icon for this task description. 1309 * @hide 1310 */ 1311 public void setIcon(Bitmap icon) { 1312 mIcon = icon; 1313 } 1314 1315 /** 1316 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1317 * bitmap. 1318 * @hide 1319 */ 1320 public void setIconFilename(String iconFilename) { 1321 mIconFilename = iconFilename; 1322 mIcon = null; 1323 } 1324 1325 /** 1326 * @return The label and description of the current state of this task. 1327 */ 1328 public String getLabel() { 1329 return mLabel; 1330 } 1331 1332 /** 1333 * @return The icon that represents the current state of this task. 1334 */ 1335 public Bitmap getIcon() { 1336 if (mIcon != null) { 1337 return mIcon; 1338 } 1339 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1340 } 1341 1342 /** @hide */ 1343 public String getIconFilename() { 1344 return mIconFilename; 1345 } 1346 1347 /** @hide */ 1348 public Bitmap getInMemoryIcon() { 1349 return mIcon; 1350 } 1351 1352 /** @hide */ 1353 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1354 if (iconFilename != null) { 1355 try { 1356 return getService().getTaskDescriptionIcon(iconFilename, 1357 userId); 1358 } catch (RemoteException e) { 1359 throw e.rethrowFromSystemServer(); 1360 } 1361 } 1362 return null; 1363 } 1364 1365 /** 1366 * @return The color override on the theme's primary color. 1367 */ 1368 public int getPrimaryColor() { 1369 return mColorPrimary; 1370 } 1371 1372 /** 1373 * @return The background color. 1374 * @hide 1375 */ 1376 public int getBackgroundColor() { 1377 return mColorBackground; 1378 } 1379 1380 /** 1381 * @hide 1382 */ 1383 public int getStatusBarColor() { 1384 return mStatusBarColor; 1385 } 1386 1387 /** 1388 * @hide 1389 */ 1390 public int getNavigationBarColor() { 1391 return mNavigationBarColor; 1392 } 1393 1394 /** @hide */ 1395 public void saveToXml(XmlSerializer out) throws IOException { 1396 if (mLabel != null) { 1397 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1398 } 1399 if (mColorPrimary != 0) { 1400 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1401 Integer.toHexString(mColorPrimary)); 1402 } 1403 if (mColorBackground != 0) { 1404 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1405 Integer.toHexString(mColorBackground)); 1406 } 1407 if (mIconFilename != null) { 1408 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1409 } 1410 } 1411 1412 /** @hide */ 1413 public void restoreFromXml(String attrName, String attrValue) { 1414 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1415 setLabel(attrValue); 1416 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1417 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1418 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1419 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1420 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1421 setIconFilename(attrValue); 1422 } 1423 } 1424 1425 @Override 1426 public int describeContents() { 1427 return 0; 1428 } 1429 1430 @Override 1431 public void writeToParcel(Parcel dest, int flags) { 1432 if (mLabel == null) { 1433 dest.writeInt(0); 1434 } else { 1435 dest.writeInt(1); 1436 dest.writeString(mLabel); 1437 } 1438 if (mIcon == null) { 1439 dest.writeInt(0); 1440 } else { 1441 dest.writeInt(1); 1442 mIcon.writeToParcel(dest, 0); 1443 } 1444 dest.writeInt(mColorPrimary); 1445 dest.writeInt(mColorBackground); 1446 dest.writeInt(mStatusBarColor); 1447 dest.writeInt(mNavigationBarColor); 1448 if (mIconFilename == null) { 1449 dest.writeInt(0); 1450 } else { 1451 dest.writeInt(1); 1452 dest.writeString(mIconFilename); 1453 } 1454 } 1455 1456 public void readFromParcel(Parcel source) { 1457 mLabel = source.readInt() > 0 ? source.readString() : null; 1458 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1459 mColorPrimary = source.readInt(); 1460 mColorBackground = source.readInt(); 1461 mStatusBarColor = source.readInt(); 1462 mNavigationBarColor = source.readInt(); 1463 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1464 } 1465 1466 public static final Creator<TaskDescription> CREATOR 1467 = new Creator<TaskDescription>() { 1468 public TaskDescription createFromParcel(Parcel source) { 1469 return new TaskDescription(source); 1470 } 1471 public TaskDescription[] newArray(int size) { 1472 return new TaskDescription[size]; 1473 } 1474 }; 1475 1476 @Override 1477 public String toString() { 1478 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1479 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1480 " colorBackground: " + mColorBackground + 1481 " statusBarColor: " + mColorBackground + 1482 " navigationBarColor: " + mNavigationBarColor; 1483 } 1484 } 1485 1486 /** 1487 * Information you can retrieve about tasks that the user has most recently 1488 * started or visited. 1489 */ 1490 public static class RecentTaskInfo implements Parcelable { 1491 /** 1492 * If this task is currently running, this is the identifier for it. 1493 * If it is not running, this will be -1. 1494 */ 1495 public int id; 1496 1497 /** 1498 * The true identifier of this task, valid even if it is not running. 1499 */ 1500 public int persistentId; 1501 1502 /** 1503 * The original Intent used to launch the task. You can use this 1504 * Intent to re-launch the task (if it is no longer running) or bring 1505 * the current task to the front. 1506 */ 1507 public Intent baseIntent; 1508 1509 /** 1510 * If this task was started from an alias, this is the actual 1511 * activity component that was initially started; the component of 1512 * the baseIntent in this case is the name of the actual activity 1513 * implementation that the alias referred to. Otherwise, this is null. 1514 */ 1515 public ComponentName origActivity; 1516 1517 /** 1518 * The actual activity component that started the task. 1519 * @hide 1520 */ 1521 @Nullable 1522 public ComponentName realActivity; 1523 1524 /** 1525 * Description of the task's last state. 1526 */ 1527 public CharSequence description; 1528 1529 /** 1530 * The id of the ActivityStack this Task was on most recently. 1531 * @hide 1532 */ 1533 public int stackId; 1534 1535 /** 1536 * The id of the user the task was running as. 1537 * @hide 1538 */ 1539 public int userId; 1540 1541 /** 1542 * The first time this task was active. 1543 * @hide 1544 */ 1545 public long firstActiveTime; 1546 1547 /** 1548 * The last time this task was active. 1549 * @hide 1550 */ 1551 public long lastActiveTime; 1552 1553 /** 1554 * The recent activity values for the highest activity in the stack to have set the values. 1555 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1556 */ 1557 public TaskDescription taskDescription; 1558 1559 /** 1560 * Task affiliation for grouping with other tasks. 1561 */ 1562 public int affiliatedTaskId; 1563 1564 /** 1565 * Task affiliation color of the source task with the affiliated task id. 1566 * 1567 * @hide 1568 */ 1569 public int affiliatedTaskColor; 1570 1571 /** 1572 * The component launched as the first activity in the task. 1573 * This can be considered the "application" of this task. 1574 */ 1575 public ComponentName baseActivity; 1576 1577 /** 1578 * The activity component at the top of the history stack of the task. 1579 * This is what the user is currently doing. 1580 */ 1581 public ComponentName topActivity; 1582 1583 /** 1584 * Number of activities in this task. 1585 */ 1586 public int numActivities; 1587 1588 /** 1589 * The bounds of the task. 1590 * @hide 1591 */ 1592 public Rect bounds; 1593 1594 /** 1595 * True if the task can go in the docked stack. 1596 * @hide 1597 */ 1598 public boolean supportsSplitScreenMultiWindow; 1599 1600 /** 1601 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1602 * @hide 1603 */ 1604 public int resizeMode; 1605 1606 public RecentTaskInfo() { 1607 } 1608 1609 @Override 1610 public int describeContents() { 1611 return 0; 1612 } 1613 1614 @Override 1615 public void writeToParcel(Parcel dest, int flags) { 1616 dest.writeInt(id); 1617 dest.writeInt(persistentId); 1618 if (baseIntent != null) { 1619 dest.writeInt(1); 1620 baseIntent.writeToParcel(dest, 0); 1621 } else { 1622 dest.writeInt(0); 1623 } 1624 ComponentName.writeToParcel(origActivity, dest); 1625 ComponentName.writeToParcel(realActivity, dest); 1626 TextUtils.writeToParcel(description, dest, 1627 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1628 if (taskDescription != null) { 1629 dest.writeInt(1); 1630 taskDescription.writeToParcel(dest, 0); 1631 } else { 1632 dest.writeInt(0); 1633 } 1634 dest.writeInt(stackId); 1635 dest.writeInt(userId); 1636 dest.writeLong(firstActiveTime); 1637 dest.writeLong(lastActiveTime); 1638 dest.writeInt(affiliatedTaskId); 1639 dest.writeInt(affiliatedTaskColor); 1640 ComponentName.writeToParcel(baseActivity, dest); 1641 ComponentName.writeToParcel(topActivity, dest); 1642 dest.writeInt(numActivities); 1643 if (bounds != null) { 1644 dest.writeInt(1); 1645 bounds.writeToParcel(dest, 0); 1646 } else { 1647 dest.writeInt(0); 1648 } 1649 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1650 dest.writeInt(resizeMode); 1651 } 1652 1653 public void readFromParcel(Parcel source) { 1654 id = source.readInt(); 1655 persistentId = source.readInt(); 1656 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1657 origActivity = ComponentName.readFromParcel(source); 1658 realActivity = ComponentName.readFromParcel(source); 1659 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1660 taskDescription = source.readInt() > 0 ? 1661 TaskDescription.CREATOR.createFromParcel(source) : null; 1662 stackId = source.readInt(); 1663 userId = source.readInt(); 1664 firstActiveTime = source.readLong(); 1665 lastActiveTime = source.readLong(); 1666 affiliatedTaskId = source.readInt(); 1667 affiliatedTaskColor = source.readInt(); 1668 baseActivity = ComponentName.readFromParcel(source); 1669 topActivity = ComponentName.readFromParcel(source); 1670 numActivities = source.readInt(); 1671 bounds = source.readInt() > 0 ? 1672 Rect.CREATOR.createFromParcel(source) : null; 1673 supportsSplitScreenMultiWindow = source.readInt() == 1; 1674 resizeMode = source.readInt(); 1675 } 1676 1677 public static final Creator<RecentTaskInfo> CREATOR 1678 = new Creator<RecentTaskInfo>() { 1679 public RecentTaskInfo createFromParcel(Parcel source) { 1680 return new RecentTaskInfo(source); 1681 } 1682 public RecentTaskInfo[] newArray(int size) { 1683 return new RecentTaskInfo[size]; 1684 } 1685 }; 1686 1687 private RecentTaskInfo(Parcel source) { 1688 readFromParcel(source); 1689 } 1690 } 1691 1692 /** 1693 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1694 * that have set their 1695 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1696 */ 1697 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1698 1699 /** 1700 * Provides a list that does not contain any 1701 * recent tasks that currently are not available to the user. 1702 */ 1703 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1704 1705 /** 1706 * Provides a list that contains recent tasks for all 1707 * profiles of a user. 1708 * @hide 1709 */ 1710 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1711 1712 /** 1713 * Ignores all tasks that are on the home stack. 1714 * @hide 1715 */ 1716 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1717 1718 /** 1719 * Ignores the top task in the docked stack. 1720 * @hide 1721 */ 1722 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1723 1724 /** 1725 * Ignores all tasks that are on the pinned stack. 1726 * @hide 1727 */ 1728 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1729 1730 /** 1731 * <p></p>Return a list of the tasks that the user has recently launched, with 1732 * the most recent being first and older ones after in order. 1733 * 1734 * <p><b>Note: this method is only intended for debugging and presenting 1735 * task management user interfaces</b>. This should never be used for 1736 * core logic in an application, such as deciding between different 1737 * behaviors based on the information found here. Such uses are 1738 * <em>not</em> supported, and will likely break in the future. For 1739 * example, if multiple applications can be actively running at the 1740 * same time, assumptions made about the meaning of the data here for 1741 * purposes of control flow will be incorrect.</p> 1742 * 1743 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1744 * no longer available to third party applications: the introduction of 1745 * document-centric recents means 1746 * it can leak personal information to the caller. For backwards compatibility, 1747 * it will still return a small subset of its data: at least the caller's 1748 * own tasks (though see {@link #getAppTasks()} for the correct supported 1749 * way to retrieve that information), and possibly some other tasks 1750 * such as home that are known to not be sensitive. 1751 * 1752 * @param maxNum The maximum number of entries to return in the list. The 1753 * actual number returned may be smaller, depending on how many tasks the 1754 * user has started and the maximum number the system can remember. 1755 * @param flags Information about what to return. May be any combination 1756 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1757 * 1758 * @return Returns a list of RecentTaskInfo records describing each of 1759 * the recent tasks. 1760 */ 1761 @Deprecated 1762 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1763 throws SecurityException { 1764 try { 1765 return getService().getRecentTasks(maxNum, 1766 flags, UserHandle.myUserId()).getList(); 1767 } catch (RemoteException e) { 1768 throw e.rethrowFromSystemServer(); 1769 } 1770 } 1771 1772 /** 1773 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1774 * specific user. It requires holding 1775 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1776 * @param maxNum The maximum number of entries to return in the list. The 1777 * actual number returned may be smaller, depending on how many tasks the 1778 * user has started and the maximum number the system can remember. 1779 * @param flags Information about what to return. May be any combination 1780 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1781 * 1782 * @return Returns a list of RecentTaskInfo records describing each of 1783 * the recent tasks. Most recently activated tasks go first. 1784 * 1785 * @hide 1786 */ 1787 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1788 throws SecurityException { 1789 try { 1790 return getService().getRecentTasks(maxNum, 1791 flags, userId).getList(); 1792 } catch (RemoteException e) { 1793 throw e.rethrowFromSystemServer(); 1794 } 1795 } 1796 1797 /** 1798 * Information you can retrieve about a particular task that is currently 1799 * "running" in the system. Note that a running task does not mean the 1800 * given task actually has a process it is actively running in; it simply 1801 * means that the user has gone to it and never closed it, but currently 1802 * the system may have killed its process and is only holding on to its 1803 * last state in order to restart it when the user returns. 1804 */ 1805 public static class RunningTaskInfo implements Parcelable { 1806 /** 1807 * A unique identifier for this task. 1808 */ 1809 public int id; 1810 1811 /** 1812 * The stack that currently contains this task. 1813 * @hide 1814 */ 1815 public int stackId; 1816 1817 /** 1818 * The component launched as the first activity in the task. This can 1819 * be considered the "application" of this task. 1820 */ 1821 public ComponentName baseActivity; 1822 1823 /** 1824 * The activity component at the top of the history stack of the task. 1825 * This is what the user is currently doing. 1826 */ 1827 public ComponentName topActivity; 1828 1829 /** 1830 * Thumbnail representation of the task's current state. Currently 1831 * always null. 1832 */ 1833 public Bitmap thumbnail; 1834 1835 /** 1836 * Description of the task's current state. 1837 */ 1838 public CharSequence description; 1839 1840 /** 1841 * Number of activities in this task. 1842 */ 1843 public int numActivities; 1844 1845 /** 1846 * Number of activities that are currently running (not stopped 1847 * and persisted) in this task. 1848 */ 1849 public int numRunning; 1850 1851 /** 1852 * Last time task was run. For sorting. 1853 * @hide 1854 */ 1855 public long lastActiveTime; 1856 1857 /** 1858 * True if the task can go in the docked stack. 1859 * @hide 1860 */ 1861 public boolean supportsSplitScreenMultiWindow; 1862 1863 /** 1864 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1865 * @hide 1866 */ 1867 public int resizeMode; 1868 1869 public RunningTaskInfo() { 1870 } 1871 1872 public int describeContents() { 1873 return 0; 1874 } 1875 1876 public void writeToParcel(Parcel dest, int flags) { 1877 dest.writeInt(id); 1878 dest.writeInt(stackId); 1879 ComponentName.writeToParcel(baseActivity, dest); 1880 ComponentName.writeToParcel(topActivity, dest); 1881 if (thumbnail != null) { 1882 dest.writeInt(1); 1883 thumbnail.writeToParcel(dest, 0); 1884 } else { 1885 dest.writeInt(0); 1886 } 1887 TextUtils.writeToParcel(description, dest, 1888 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1889 dest.writeInt(numActivities); 1890 dest.writeInt(numRunning); 1891 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1892 dest.writeInt(resizeMode); 1893 } 1894 1895 public void readFromParcel(Parcel source) { 1896 id = source.readInt(); 1897 stackId = source.readInt(); 1898 baseActivity = ComponentName.readFromParcel(source); 1899 topActivity = ComponentName.readFromParcel(source); 1900 if (source.readInt() != 0) { 1901 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1902 } else { 1903 thumbnail = null; 1904 } 1905 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1906 numActivities = source.readInt(); 1907 numRunning = source.readInt(); 1908 supportsSplitScreenMultiWindow = source.readInt() != 0; 1909 resizeMode = source.readInt(); 1910 } 1911 1912 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1913 public RunningTaskInfo createFromParcel(Parcel source) { 1914 return new RunningTaskInfo(source); 1915 } 1916 public RunningTaskInfo[] newArray(int size) { 1917 return new RunningTaskInfo[size]; 1918 } 1919 }; 1920 1921 private RunningTaskInfo(Parcel source) { 1922 readFromParcel(source); 1923 } 1924 } 1925 1926 /** 1927 * Get the list of tasks associated with the calling application. 1928 * 1929 * @return The list of tasks associated with the application making this call. 1930 * @throws SecurityException 1931 */ 1932 public List<ActivityManager.AppTask> getAppTasks() { 1933 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1934 List<IBinder> appTasks; 1935 try { 1936 appTasks = getService().getAppTasks(mContext.getPackageName()); 1937 } catch (RemoteException e) { 1938 throw e.rethrowFromSystemServer(); 1939 } 1940 int numAppTasks = appTasks.size(); 1941 for (int i = 0; i < numAppTasks; i++) { 1942 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1943 } 1944 return tasks; 1945 } 1946 1947 /** 1948 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1949 * with {@link #addAppTask}. 1950 */ 1951 public Size getAppTaskThumbnailSize() { 1952 synchronized (this) { 1953 ensureAppTaskThumbnailSizeLocked(); 1954 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1955 } 1956 } 1957 1958 private void ensureAppTaskThumbnailSizeLocked() { 1959 if (mAppTaskThumbnailSize == null) { 1960 try { 1961 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1962 } catch (RemoteException e) { 1963 throw e.rethrowFromSystemServer(); 1964 } 1965 } 1966 } 1967 1968 /** 1969 * Add a new {@link AppTask} for the calling application. This will create a new 1970 * recents entry that is added to the <b>end</b> of all existing recents. 1971 * 1972 * @param activity The activity that is adding the entry. This is used to help determine 1973 * the context that the new recents entry will be in. 1974 * @param intent The Intent that describes the recents entry. This is the same Intent that 1975 * you would have used to launch the activity for it. In generally you will want to set 1976 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1977 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1978 * entry will exist without an activity, so it doesn't make sense to not retain it when 1979 * its activity disappears. The given Intent here also must have an explicit ComponentName 1980 * set on it. 1981 * @param description Optional additional description information. 1982 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1983 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1984 * recreated in your process, probably in a way you don't like, before the recents entry 1985 * is added. 1986 * 1987 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1988 * most likely cause of failure is that there is no more room for more tasks for your app. 1989 */ 1990 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1991 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1992 Point size; 1993 synchronized (this) { 1994 ensureAppTaskThumbnailSizeLocked(); 1995 size = mAppTaskThumbnailSize; 1996 } 1997 final int tw = thumbnail.getWidth(); 1998 final int th = thumbnail.getHeight(); 1999 if (tw != size.x || th != size.y) { 2000 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2001 2002 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2003 float scale; 2004 float dx = 0, dy = 0; 2005 if (tw * size.x > size.y * th) { 2006 scale = (float) size.x / (float) th; 2007 dx = (size.y - tw * scale) * 0.5f; 2008 } else { 2009 scale = (float) size.y / (float) tw; 2010 dy = (size.x - th * scale) * 0.5f; 2011 } 2012 Matrix matrix = new Matrix(); 2013 matrix.setScale(scale, scale); 2014 matrix.postTranslate((int) (dx + 0.5f), 0); 2015 2016 Canvas canvas = new Canvas(bm); 2017 canvas.drawBitmap(thumbnail, matrix, null); 2018 canvas.setBitmap(null); 2019 2020 thumbnail = bm; 2021 } 2022 if (description == null) { 2023 description = new TaskDescription(); 2024 } 2025 try { 2026 return getService().addAppTask(activity.getActivityToken(), 2027 intent, description, thumbnail); 2028 } catch (RemoteException e) { 2029 throw e.rethrowFromSystemServer(); 2030 } 2031 } 2032 2033 /** 2034 * Return a list of the tasks that are currently running, with 2035 * the most recent being first and older ones after in order. Note that 2036 * "running" does not mean any of the task's code is currently loaded or 2037 * activity -- the task may have been frozen by the system, so that it 2038 * can be restarted in its previous state when next brought to the 2039 * foreground. 2040 * 2041 * <p><b>Note: this method is only intended for debugging and presenting 2042 * task management user interfaces</b>. This should never be used for 2043 * core logic in an application, such as deciding between different 2044 * behaviors based on the information found here. Such uses are 2045 * <em>not</em> supported, and will likely break in the future. For 2046 * example, if multiple applications can be actively running at the 2047 * same time, assumptions made about the meaning of the data here for 2048 * purposes of control flow will be incorrect.</p> 2049 * 2050 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2051 * is no longer available to third party 2052 * applications: the introduction of document-centric recents means 2053 * it can leak person information to the caller. For backwards compatibility, 2054 * it will still retu rn a small subset of its data: at least the caller's 2055 * own tasks, and possibly some other tasks 2056 * such as home that are known to not be sensitive. 2057 * 2058 * @param maxNum The maximum number of entries to return in the list. The 2059 * actual number returned may be smaller, depending on how many tasks the 2060 * user has started. 2061 * 2062 * @return Returns a list of RunningTaskInfo records describing each of 2063 * the running tasks. 2064 */ 2065 @Deprecated 2066 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2067 throws SecurityException { 2068 try { 2069 return getService().getTasks(maxNum, 0); 2070 } catch (RemoteException e) { 2071 throw e.rethrowFromSystemServer(); 2072 } 2073 } 2074 2075 /** 2076 * Completely remove the given task. 2077 * 2078 * @param taskId Identifier of the task to be removed. 2079 * @return Returns true if the given task was found and removed. 2080 * 2081 * @hide 2082 */ 2083 public boolean removeTask(int taskId) throws SecurityException { 2084 try { 2085 return getService().removeTask(taskId); 2086 } catch (RemoteException e) { 2087 throw e.rethrowFromSystemServer(); 2088 } 2089 } 2090 2091 /** 2092 * Metadata related to the {@link TaskThumbnail}. 2093 * 2094 * @hide 2095 */ 2096 public static class TaskThumbnailInfo implements Parcelable { 2097 /** @hide */ 2098 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2099 private static final String ATTR_TASK_WIDTH = 2100 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2101 private static final String ATTR_TASK_HEIGHT = 2102 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2103 private static final String ATTR_SCREEN_ORIENTATION = 2104 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2105 2106 public int taskWidth; 2107 public int taskHeight; 2108 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2109 2110 public TaskThumbnailInfo() { 2111 // Do nothing 2112 } 2113 2114 private TaskThumbnailInfo(Parcel source) { 2115 readFromParcel(source); 2116 } 2117 2118 /** 2119 * Resets this info state to the initial state. 2120 * @hide 2121 */ 2122 public void reset() { 2123 taskWidth = 0; 2124 taskHeight = 0; 2125 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2126 } 2127 2128 /** 2129 * Copies from another ThumbnailInfo. 2130 */ 2131 public void copyFrom(TaskThumbnailInfo o) { 2132 taskWidth = o.taskWidth; 2133 taskHeight = o.taskHeight; 2134 screenOrientation = o.screenOrientation; 2135 } 2136 2137 /** @hide */ 2138 public void saveToXml(XmlSerializer out) throws IOException { 2139 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2140 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2141 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2142 } 2143 2144 /** @hide */ 2145 public void restoreFromXml(String attrName, String attrValue) { 2146 if (ATTR_TASK_WIDTH.equals(attrName)) { 2147 taskWidth = Integer.parseInt(attrValue); 2148 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2149 taskHeight = Integer.parseInt(attrValue); 2150 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2151 screenOrientation = Integer.parseInt(attrValue); 2152 } 2153 } 2154 2155 public int describeContents() { 2156 return 0; 2157 } 2158 2159 public void writeToParcel(Parcel dest, int flags) { 2160 dest.writeInt(taskWidth); 2161 dest.writeInt(taskHeight); 2162 dest.writeInt(screenOrientation); 2163 } 2164 2165 public void readFromParcel(Parcel source) { 2166 taskWidth = source.readInt(); 2167 taskHeight = source.readInt(); 2168 screenOrientation = source.readInt(); 2169 } 2170 2171 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2172 public TaskThumbnailInfo createFromParcel(Parcel source) { 2173 return new TaskThumbnailInfo(source); 2174 } 2175 public TaskThumbnailInfo[] newArray(int size) { 2176 return new TaskThumbnailInfo[size]; 2177 } 2178 }; 2179 } 2180 2181 /** @hide */ 2182 public static class TaskThumbnail implements Parcelable { 2183 public Bitmap mainThumbnail; 2184 public ParcelFileDescriptor thumbnailFileDescriptor; 2185 public TaskThumbnailInfo thumbnailInfo; 2186 2187 public TaskThumbnail() { 2188 } 2189 2190 private TaskThumbnail(Parcel source) { 2191 readFromParcel(source); 2192 } 2193 2194 public int describeContents() { 2195 if (thumbnailFileDescriptor != null) { 2196 return thumbnailFileDescriptor.describeContents(); 2197 } 2198 return 0; 2199 } 2200 2201 public void writeToParcel(Parcel dest, int flags) { 2202 if (mainThumbnail != null) { 2203 dest.writeInt(1); 2204 mainThumbnail.writeToParcel(dest, flags); 2205 } else { 2206 dest.writeInt(0); 2207 } 2208 if (thumbnailFileDescriptor != null) { 2209 dest.writeInt(1); 2210 thumbnailFileDescriptor.writeToParcel(dest, flags); 2211 } else { 2212 dest.writeInt(0); 2213 } 2214 if (thumbnailInfo != null) { 2215 dest.writeInt(1); 2216 thumbnailInfo.writeToParcel(dest, flags); 2217 } else { 2218 dest.writeInt(0); 2219 } 2220 } 2221 2222 public void readFromParcel(Parcel source) { 2223 if (source.readInt() != 0) { 2224 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2225 } else { 2226 mainThumbnail = null; 2227 } 2228 if (source.readInt() != 0) { 2229 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2230 } else { 2231 thumbnailFileDescriptor = null; 2232 } 2233 if (source.readInt() != 0) { 2234 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2235 } else { 2236 thumbnailInfo = null; 2237 } 2238 } 2239 2240 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2241 public TaskThumbnail createFromParcel(Parcel source) { 2242 return new TaskThumbnail(source); 2243 } 2244 public TaskThumbnail[] newArray(int size) { 2245 return new TaskThumbnail[size]; 2246 } 2247 }; 2248 } 2249 2250 /** 2251 * Represents a task snapshot. 2252 * @hide 2253 */ 2254 public static class TaskSnapshot implements Parcelable { 2255 2256 private final GraphicBuffer mSnapshot; 2257 private final int mOrientation; 2258 private final Rect mContentInsets; 2259 private final boolean mReducedResolution; 2260 private final float mScale; 2261 2262 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2263 boolean reducedResolution, float scale) { 2264 mSnapshot = snapshot; 2265 mOrientation = orientation; 2266 mContentInsets = new Rect(contentInsets); 2267 mReducedResolution = reducedResolution; 2268 mScale = scale; 2269 } 2270 2271 private TaskSnapshot(Parcel source) { 2272 mSnapshot = source.readParcelable(null /* classLoader */); 2273 mOrientation = source.readInt(); 2274 mContentInsets = source.readParcelable(null /* classLoader */); 2275 mReducedResolution = source.readBoolean(); 2276 mScale = source.readFloat(); 2277 } 2278 2279 /** 2280 * @return The graphic buffer representing the screenshot. 2281 */ 2282 public GraphicBuffer getSnapshot() { 2283 return mSnapshot; 2284 } 2285 2286 /** 2287 * @return The screen orientation the screenshot was taken in. 2288 */ 2289 public int getOrientation() { 2290 return mOrientation; 2291 } 2292 2293 /** 2294 * @return The system/content insets on the snapshot. These can be clipped off in order to 2295 * remove any areas behind system bars in the snapshot. 2296 */ 2297 public Rect getContentInsets() { 2298 return mContentInsets; 2299 } 2300 2301 /** 2302 * @return Whether this snapshot is a down-sampled version of the full resolution. 2303 */ 2304 public boolean isReducedResolution() { 2305 return mReducedResolution; 2306 } 2307 2308 /** 2309 * @return The scale this snapshot was taken in. 2310 */ 2311 public float getScale() { 2312 return mScale; 2313 } 2314 2315 @Override 2316 public int describeContents() { 2317 return 0; 2318 } 2319 2320 @Override 2321 public void writeToParcel(Parcel dest, int flags) { 2322 dest.writeParcelable(mSnapshot, 0); 2323 dest.writeInt(mOrientation); 2324 dest.writeParcelable(mContentInsets, 0); 2325 dest.writeBoolean(mReducedResolution); 2326 dest.writeFloat(mScale); 2327 } 2328 2329 @Override 2330 public String toString() { 2331 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2332 + " mContentInsets=" + mContentInsets.toShortString() 2333 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2334 } 2335 2336 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2337 public TaskSnapshot createFromParcel(Parcel source) { 2338 return new TaskSnapshot(source); 2339 } 2340 public TaskSnapshot[] newArray(int size) { 2341 return new TaskSnapshot[size]; 2342 } 2343 }; 2344 } 2345 2346 /** @hide */ 2347 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2348 try { 2349 return getService().getTaskThumbnail(id); 2350 } catch (RemoteException e) { 2351 throw e.rethrowFromSystemServer(); 2352 } 2353 } 2354 2355 /** @hide */ 2356 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2357 MOVE_TASK_WITH_HOME, 2358 MOVE_TASK_NO_USER_ACTION, 2359 }) 2360 @Retention(RetentionPolicy.SOURCE) 2361 public @interface MoveTaskFlags {} 2362 2363 /** 2364 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2365 * activity along with the task, so it is positioned immediately behind 2366 * the task. 2367 */ 2368 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2369 2370 /** 2371 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2372 * user-instigated action, so the current activity will not receive a 2373 * hint that the user is leaving. 2374 */ 2375 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2376 2377 /** 2378 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2379 * with a null options argument. 2380 * 2381 * @param taskId The identifier of the task to be moved, as found in 2382 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2383 * @param flags Additional operational flags. 2384 */ 2385 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2386 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2387 moveTaskToFront(taskId, flags, null); 2388 } 2389 2390 /** 2391 * Ask that the task associated with a given task ID be moved to the 2392 * front of the stack, so it is now visible to the user. 2393 * 2394 * @param taskId The identifier of the task to be moved, as found in 2395 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2396 * @param flags Additional operational flags. 2397 * @param options Additional options for the operation, either null or 2398 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2399 * Context.startActivity(Intent, Bundle)}. 2400 */ 2401 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2402 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2403 try { 2404 getService().moveTaskToFront(taskId, flags, options); 2405 } catch (RemoteException e) { 2406 throw e.rethrowFromSystemServer(); 2407 } 2408 } 2409 2410 /** 2411 * Information you can retrieve about a particular Service that is 2412 * currently running in the system. 2413 */ 2414 public static class RunningServiceInfo implements Parcelable { 2415 /** 2416 * The service component. 2417 */ 2418 public ComponentName service; 2419 2420 /** 2421 * If non-zero, this is the process the service is running in. 2422 */ 2423 public int pid; 2424 2425 /** 2426 * The UID that owns this service. 2427 */ 2428 public int uid; 2429 2430 /** 2431 * The name of the process this service runs in. 2432 */ 2433 public String process; 2434 2435 /** 2436 * Set to true if the service has asked to run as a foreground process. 2437 */ 2438 public boolean foreground; 2439 2440 /** 2441 * The time when the service was first made active, either by someone 2442 * starting or binding to it. This 2443 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2444 */ 2445 public long activeSince; 2446 2447 /** 2448 * Set to true if this service has been explicitly started. 2449 */ 2450 public boolean started; 2451 2452 /** 2453 * Number of clients connected to the service. 2454 */ 2455 public int clientCount; 2456 2457 /** 2458 * Number of times the service's process has crashed while the service 2459 * is running. 2460 */ 2461 public int crashCount; 2462 2463 /** 2464 * The time when there was last activity in the service (either 2465 * explicit requests to start it or clients binding to it). This 2466 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2467 */ 2468 public long lastActivityTime; 2469 2470 /** 2471 * If non-zero, this service is not currently running, but scheduled to 2472 * restart at the given time. 2473 */ 2474 public long restarting; 2475 2476 /** 2477 * Bit for {@link #flags}: set if this service has been 2478 * explicitly started. 2479 */ 2480 public static final int FLAG_STARTED = 1<<0; 2481 2482 /** 2483 * Bit for {@link #flags}: set if the service has asked to 2484 * run as a foreground process. 2485 */ 2486 public static final int FLAG_FOREGROUND = 1<<1; 2487 2488 /** 2489 * Bit for {@link #flags}: set if the service is running in a 2490 * core system process. 2491 */ 2492 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2493 2494 /** 2495 * Bit for {@link #flags}: set if the service is running in a 2496 * persistent process. 2497 */ 2498 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2499 2500 /** 2501 * Running flags. 2502 */ 2503 public int flags; 2504 2505 /** 2506 * For special services that are bound to by system code, this is 2507 * the package that holds the binding. 2508 */ 2509 public String clientPackage; 2510 2511 /** 2512 * For special services that are bound to by system code, this is 2513 * a string resource providing a user-visible label for who the 2514 * client is. 2515 */ 2516 public int clientLabel; 2517 2518 public RunningServiceInfo() { 2519 } 2520 2521 public int describeContents() { 2522 return 0; 2523 } 2524 2525 public void writeToParcel(Parcel dest, int flags) { 2526 ComponentName.writeToParcel(service, dest); 2527 dest.writeInt(pid); 2528 dest.writeInt(uid); 2529 dest.writeString(process); 2530 dest.writeInt(foreground ? 1 : 0); 2531 dest.writeLong(activeSince); 2532 dest.writeInt(started ? 1 : 0); 2533 dest.writeInt(clientCount); 2534 dest.writeInt(crashCount); 2535 dest.writeLong(lastActivityTime); 2536 dest.writeLong(restarting); 2537 dest.writeInt(this.flags); 2538 dest.writeString(clientPackage); 2539 dest.writeInt(clientLabel); 2540 } 2541 2542 public void readFromParcel(Parcel source) { 2543 service = ComponentName.readFromParcel(source); 2544 pid = source.readInt(); 2545 uid = source.readInt(); 2546 process = source.readString(); 2547 foreground = source.readInt() != 0; 2548 activeSince = source.readLong(); 2549 started = source.readInt() != 0; 2550 clientCount = source.readInt(); 2551 crashCount = source.readInt(); 2552 lastActivityTime = source.readLong(); 2553 restarting = source.readLong(); 2554 flags = source.readInt(); 2555 clientPackage = source.readString(); 2556 clientLabel = source.readInt(); 2557 } 2558 2559 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2560 public RunningServiceInfo createFromParcel(Parcel source) { 2561 return new RunningServiceInfo(source); 2562 } 2563 public RunningServiceInfo[] newArray(int size) { 2564 return new RunningServiceInfo[size]; 2565 } 2566 }; 2567 2568 private RunningServiceInfo(Parcel source) { 2569 readFromParcel(source); 2570 } 2571 } 2572 2573 /** 2574 * Return a list of the services that are currently running. 2575 * 2576 * <p><b>Note: this method is only intended for debugging or implementing 2577 * service management type user interfaces.</b></p> 2578 * 2579 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2580 * is no longer available to third party applications. For backwards compatibility, 2581 * it will still return the caller's own services. 2582 * 2583 * @param maxNum The maximum number of entries to return in the list. The 2584 * actual number returned may be smaller, depending on how many services 2585 * are running. 2586 * 2587 * @return Returns a list of RunningServiceInfo records describing each of 2588 * the running tasks. 2589 */ 2590 @Deprecated 2591 public List<RunningServiceInfo> getRunningServices(int maxNum) 2592 throws SecurityException { 2593 try { 2594 return getService() 2595 .getServices(maxNum, 0); 2596 } catch (RemoteException e) { 2597 throw e.rethrowFromSystemServer(); 2598 } 2599 } 2600 2601 /** 2602 * Returns a PendingIntent you can start to show a control panel for the 2603 * given running service. If the service does not have a control panel, 2604 * null is returned. 2605 */ 2606 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2607 throws SecurityException { 2608 try { 2609 return getService() 2610 .getRunningServiceControlPanel(service); 2611 } catch (RemoteException e) { 2612 throw e.rethrowFromSystemServer(); 2613 } 2614 } 2615 2616 /** 2617 * Information you can retrieve about the available memory through 2618 * {@link ActivityManager#getMemoryInfo}. 2619 */ 2620 public static class MemoryInfo implements Parcelable { 2621 /** 2622 * The available memory on the system. This number should not 2623 * be considered absolute: due to the nature of the kernel, a significant 2624 * portion of this memory is actually in use and needed for the overall 2625 * system to run well. 2626 */ 2627 public long availMem; 2628 2629 /** 2630 * The total memory accessible by the kernel. This is basically the 2631 * RAM size of the device, not including below-kernel fixed allocations 2632 * like DMA buffers, RAM for the baseband CPU, etc. 2633 */ 2634 public long totalMem; 2635 2636 /** 2637 * The threshold of {@link #availMem} at which we consider memory to be 2638 * low and start killing background services and other non-extraneous 2639 * processes. 2640 */ 2641 public long threshold; 2642 2643 /** 2644 * Set to true if the system considers itself to currently be in a low 2645 * memory situation. 2646 */ 2647 public boolean lowMemory; 2648 2649 /** @hide */ 2650 public long hiddenAppThreshold; 2651 /** @hide */ 2652 public long secondaryServerThreshold; 2653 /** @hide */ 2654 public long visibleAppThreshold; 2655 /** @hide */ 2656 public long foregroundAppThreshold; 2657 2658 public MemoryInfo() { 2659 } 2660 2661 public int describeContents() { 2662 return 0; 2663 } 2664 2665 public void writeToParcel(Parcel dest, int flags) { 2666 dest.writeLong(availMem); 2667 dest.writeLong(totalMem); 2668 dest.writeLong(threshold); 2669 dest.writeInt(lowMemory ? 1 : 0); 2670 dest.writeLong(hiddenAppThreshold); 2671 dest.writeLong(secondaryServerThreshold); 2672 dest.writeLong(visibleAppThreshold); 2673 dest.writeLong(foregroundAppThreshold); 2674 } 2675 2676 public void readFromParcel(Parcel source) { 2677 availMem = source.readLong(); 2678 totalMem = source.readLong(); 2679 threshold = source.readLong(); 2680 lowMemory = source.readInt() != 0; 2681 hiddenAppThreshold = source.readLong(); 2682 secondaryServerThreshold = source.readLong(); 2683 visibleAppThreshold = source.readLong(); 2684 foregroundAppThreshold = source.readLong(); 2685 } 2686 2687 public static final Creator<MemoryInfo> CREATOR 2688 = new Creator<MemoryInfo>() { 2689 public MemoryInfo createFromParcel(Parcel source) { 2690 return new MemoryInfo(source); 2691 } 2692 public MemoryInfo[] newArray(int size) { 2693 return new MemoryInfo[size]; 2694 } 2695 }; 2696 2697 private MemoryInfo(Parcel source) { 2698 readFromParcel(source); 2699 } 2700 } 2701 2702 /** 2703 * Return general information about the memory state of the system. This 2704 * can be used to help decide how to manage your own memory, though note 2705 * that polling is not recommended and 2706 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2707 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2708 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2709 * level of your process as needed, which gives a better hint for how to 2710 * manage its memory. 2711 */ 2712 public void getMemoryInfo(MemoryInfo outInfo) { 2713 try { 2714 getService().getMemoryInfo(outInfo); 2715 } catch (RemoteException e) { 2716 throw e.rethrowFromSystemServer(); 2717 } 2718 } 2719 2720 /** 2721 * Information you can retrieve about an ActivityStack in the system. 2722 * @hide 2723 */ 2724 public static class StackInfo implements Parcelable { 2725 public int stackId; 2726 public Rect bounds = new Rect(); 2727 public int[] taskIds; 2728 public String[] taskNames; 2729 public Rect[] taskBounds; 2730 public int[] taskUserIds; 2731 public ComponentName topActivity; 2732 public int displayId; 2733 public int userId; 2734 public boolean visible; 2735 // Index of the stack in the display's stack list, can be used for comparison of stack order 2736 public int position; 2737 2738 @Override 2739 public int describeContents() { 2740 return 0; 2741 } 2742 2743 @Override 2744 public void writeToParcel(Parcel dest, int flags) { 2745 dest.writeInt(stackId); 2746 dest.writeInt(bounds.left); 2747 dest.writeInt(bounds.top); 2748 dest.writeInt(bounds.right); 2749 dest.writeInt(bounds.bottom); 2750 dest.writeIntArray(taskIds); 2751 dest.writeStringArray(taskNames); 2752 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2753 dest.writeInt(boundsCount); 2754 for (int i = 0; i < boundsCount; i++) { 2755 dest.writeInt(taskBounds[i].left); 2756 dest.writeInt(taskBounds[i].top); 2757 dest.writeInt(taskBounds[i].right); 2758 dest.writeInt(taskBounds[i].bottom); 2759 } 2760 dest.writeIntArray(taskUserIds); 2761 dest.writeInt(displayId); 2762 dest.writeInt(userId); 2763 dest.writeInt(visible ? 1 : 0); 2764 dest.writeInt(position); 2765 if (topActivity != null) { 2766 dest.writeInt(1); 2767 topActivity.writeToParcel(dest, 0); 2768 } else { 2769 dest.writeInt(0); 2770 } 2771 } 2772 2773 public void readFromParcel(Parcel source) { 2774 stackId = source.readInt(); 2775 bounds = new Rect( 2776 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2777 taskIds = source.createIntArray(); 2778 taskNames = source.createStringArray(); 2779 final int boundsCount = source.readInt(); 2780 if (boundsCount > 0) { 2781 taskBounds = new Rect[boundsCount]; 2782 for (int i = 0; i < boundsCount; i++) { 2783 taskBounds[i] = new Rect(); 2784 taskBounds[i].set( 2785 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2786 } 2787 } else { 2788 taskBounds = null; 2789 } 2790 taskUserIds = source.createIntArray(); 2791 displayId = source.readInt(); 2792 userId = source.readInt(); 2793 visible = source.readInt() > 0; 2794 position = source.readInt(); 2795 if (source.readInt() > 0) { 2796 topActivity = ComponentName.readFromParcel(source); 2797 } 2798 } 2799 2800 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2801 @Override 2802 public StackInfo createFromParcel(Parcel source) { 2803 return new StackInfo(source); 2804 } 2805 @Override 2806 public StackInfo[] newArray(int size) { 2807 return new StackInfo[size]; 2808 } 2809 }; 2810 2811 public StackInfo() { 2812 } 2813 2814 private StackInfo(Parcel source) { 2815 readFromParcel(source); 2816 } 2817 2818 public String toString(String prefix) { 2819 StringBuilder sb = new StringBuilder(256); 2820 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2821 sb.append(" bounds="); sb.append(bounds.toShortString()); 2822 sb.append(" displayId="); sb.append(displayId); 2823 sb.append(" userId="); sb.append(userId); 2824 sb.append("\n"); 2825 prefix = prefix + " "; 2826 for (int i = 0; i < taskIds.length; ++i) { 2827 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2828 sb.append(": "); sb.append(taskNames[i]); 2829 if (taskBounds != null) { 2830 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2831 } 2832 sb.append(" userId=").append(taskUserIds[i]); 2833 sb.append(" visible=").append(visible); 2834 if (topActivity != null) { 2835 sb.append(" topActivity=").append(topActivity); 2836 } 2837 sb.append("\n"); 2838 } 2839 return sb.toString(); 2840 } 2841 2842 @Override 2843 public String toString() { 2844 return toString(""); 2845 } 2846 } 2847 2848 /** 2849 * @hide 2850 */ 2851 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2852 try { 2853 return getService().clearApplicationUserData(packageName, 2854 observer, UserHandle.myUserId()); 2855 } catch (RemoteException e) { 2856 throw e.rethrowFromSystemServer(); 2857 } 2858 } 2859 2860 /** 2861 * Permits an application to erase its own data from disk. This is equivalent to 2862 * the user choosing to clear the app's data from within the device settings UI. It 2863 * erases all dynamic data associated with the app -- its private data and data in its 2864 * private area on external storage -- but does not remove the installed application 2865 * itself, nor any OBB files. 2866 * 2867 * @return {@code true} if the application successfully requested that the application's 2868 * data be erased; {@code false} otherwise. 2869 */ 2870 public boolean clearApplicationUserData() { 2871 return clearApplicationUserData(mContext.getPackageName(), null); 2872 } 2873 2874 2875 /** 2876 * Permits an application to get the persistent URI permissions granted to another. 2877 * 2878 * <p>Typically called by Settings. 2879 * 2880 * @param packageName application to look for the granted permissions 2881 * @return list of granted URI permissions 2882 * 2883 * @hide 2884 */ 2885 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2886 try { 2887 return getService().getGrantedUriPermissions(packageName, 2888 UserHandle.myUserId()); 2889 } catch (RemoteException e) { 2890 throw e.rethrowFromSystemServer(); 2891 } 2892 } 2893 2894 /** 2895 * Permits an application to clear the persistent URI permissions granted to another. 2896 * 2897 * <p>Typically called by Settings. 2898 * 2899 * @param packageName application to clear its granted permissions 2900 * 2901 * @hide 2902 */ 2903 public void clearGrantedUriPermissions(String packageName) { 2904 try { 2905 getService().clearGrantedUriPermissions(packageName, 2906 UserHandle.myUserId()); 2907 } catch (RemoteException e) { 2908 throw e.rethrowFromSystemServer(); 2909 } 2910 } 2911 2912 /** 2913 * Information you can retrieve about any processes that are in an error condition. 2914 */ 2915 public static class ProcessErrorStateInfo implements Parcelable { 2916 /** 2917 * Condition codes 2918 */ 2919 public static final int NO_ERROR = 0; 2920 public static final int CRASHED = 1; 2921 public static final int NOT_RESPONDING = 2; 2922 2923 /** 2924 * The condition that the process is in. 2925 */ 2926 public int condition; 2927 2928 /** 2929 * The process name in which the crash or error occurred. 2930 */ 2931 public String processName; 2932 2933 /** 2934 * The pid of this process; 0 if none 2935 */ 2936 public int pid; 2937 2938 /** 2939 * The kernel user-ID that has been assigned to this process; 2940 * currently this is not a unique ID (multiple applications can have 2941 * the same uid). 2942 */ 2943 public int uid; 2944 2945 /** 2946 * The activity name associated with the error, if known. May be null. 2947 */ 2948 public String tag; 2949 2950 /** 2951 * A short message describing the error condition. 2952 */ 2953 public String shortMsg; 2954 2955 /** 2956 * A long message describing the error condition. 2957 */ 2958 public String longMsg; 2959 2960 /** 2961 * The stack trace where the error originated. May be null. 2962 */ 2963 public String stackTrace; 2964 2965 /** 2966 * to be deprecated: This value will always be null. 2967 */ 2968 public byte[] crashData = null; 2969 2970 public ProcessErrorStateInfo() { 2971 } 2972 2973 @Override 2974 public int describeContents() { 2975 return 0; 2976 } 2977 2978 @Override 2979 public void writeToParcel(Parcel dest, int flags) { 2980 dest.writeInt(condition); 2981 dest.writeString(processName); 2982 dest.writeInt(pid); 2983 dest.writeInt(uid); 2984 dest.writeString(tag); 2985 dest.writeString(shortMsg); 2986 dest.writeString(longMsg); 2987 dest.writeString(stackTrace); 2988 } 2989 2990 public void readFromParcel(Parcel source) { 2991 condition = source.readInt(); 2992 processName = source.readString(); 2993 pid = source.readInt(); 2994 uid = source.readInt(); 2995 tag = source.readString(); 2996 shortMsg = source.readString(); 2997 longMsg = source.readString(); 2998 stackTrace = source.readString(); 2999 } 3000 3001 public static final Creator<ProcessErrorStateInfo> CREATOR = 3002 new Creator<ProcessErrorStateInfo>() { 3003 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3004 return new ProcessErrorStateInfo(source); 3005 } 3006 public ProcessErrorStateInfo[] newArray(int size) { 3007 return new ProcessErrorStateInfo[size]; 3008 } 3009 }; 3010 3011 private ProcessErrorStateInfo(Parcel source) { 3012 readFromParcel(source); 3013 } 3014 } 3015 3016 /** 3017 * Returns a list of any processes that are currently in an error condition. The result 3018 * will be null if all processes are running properly at this time. 3019 * 3020 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3021 * current error conditions (it will not return an empty list). This list ordering is not 3022 * specified. 3023 */ 3024 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3025 try { 3026 return getService().getProcessesInErrorState(); 3027 } catch (RemoteException e) { 3028 throw e.rethrowFromSystemServer(); 3029 } 3030 } 3031 3032 /** 3033 * Information you can retrieve about a running process. 3034 */ 3035 public static class RunningAppProcessInfo implements Parcelable { 3036 /** 3037 * The name of the process that this object is associated with 3038 */ 3039 public String processName; 3040 3041 /** 3042 * The pid of this process; 0 if none 3043 */ 3044 public int pid; 3045 3046 /** 3047 * The user id of this process. 3048 */ 3049 public int uid; 3050 3051 /** 3052 * All packages that have been loaded into the process. 3053 */ 3054 public String pkgList[]; 3055 3056 /** 3057 * Constant for {@link #flags}: this is an app that is unable to 3058 * correctly save its state when going to the background, 3059 * so it can not be killed while in the background. 3060 * @hide 3061 */ 3062 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3063 3064 /** 3065 * Constant for {@link #flags}: this process is associated with a 3066 * persistent system app. 3067 * @hide 3068 */ 3069 public static final int FLAG_PERSISTENT = 1<<1; 3070 3071 /** 3072 * Constant for {@link #flags}: this process is associated with a 3073 * persistent system app. 3074 * @hide 3075 */ 3076 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3077 3078 /** 3079 * Flags of information. May be any of 3080 * {@link #FLAG_CANT_SAVE_STATE}. 3081 * @hide 3082 */ 3083 public int flags; 3084 3085 /** 3086 * Last memory trim level reported to the process: corresponds to 3087 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3088 * ComponentCallbacks2.onTrimMemory(int)}. 3089 */ 3090 public int lastTrimLevel; 3091 3092 /** @hide */ 3093 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3094 IMPORTANCE_FOREGROUND, 3095 IMPORTANCE_FOREGROUND_SERVICE, 3096 IMPORTANCE_TOP_SLEEPING, 3097 IMPORTANCE_VISIBLE, 3098 IMPORTANCE_PERCEPTIBLE, 3099 IMPORTANCE_CANT_SAVE_STATE, 3100 IMPORTANCE_SERVICE, 3101 IMPORTANCE_CACHED, 3102 IMPORTANCE_GONE, 3103 }) 3104 @Retention(RetentionPolicy.SOURCE) 3105 public @interface Importance {} 3106 3107 /** 3108 * Constant for {@link #importance}: This process is running the 3109 * foreground UI; that is, it is the thing currently at the top of the screen 3110 * that the user is interacting with. 3111 */ 3112 public static final int IMPORTANCE_FOREGROUND = 100; 3113 3114 /** 3115 * Constant for {@link #importance}: This process is running a foreground 3116 * service, for example to perform music playback even while the user is 3117 * not immediately in the app. This generally indicates that the process 3118 * is doing something the user actively cares about. 3119 */ 3120 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3121 3122 /** 3123 * Constant for {@link #importance}: This process is running the foreground 3124 * UI, but the device is asleep so it is not visible to the user. This means 3125 * the user is not really aware of the process, because they can not see or 3126 * interact with it, but it is quite important because it what they expect to 3127 * return to once unlocking the device. 3128 */ 3129 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3130 3131 /** 3132 * Constant for {@link #importance}: This process is running something 3133 * that is actively visible to the user, though not in the immediate 3134 * foreground. This may be running a window that is behind the current 3135 * foreground (so paused and with its state saved, not interacting with 3136 * the user, but visible to them to some degree); it may also be running 3137 * other services under the system's control that it inconsiders important. 3138 */ 3139 public static final int IMPORTANCE_VISIBLE = 200; 3140 3141 /** 3142 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3143 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3144 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3145 * 3146 * @deprecated Use {@link #IMPORTANCE_PERCEPTIBLE} instead. 3147 */ 3148 @Deprecated 3149 public static final int IMPORTANCE_PERCEPTIBLE_DEPRECATED = 130; 3150 3151 /** 3152 * Constant for {@link #importance}: This process is not something the user 3153 * is directly aware of, but is otherwise perceptible to them to some degree. 3154 */ 3155 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3156 3157 /** 3158 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3159 * this wrong value 3160 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3161 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3162 * 3163 * @deprecated Use {@link #IMPORTANCE_CANT_SAVE_STATE} instead. 3164 * @hide 3165 */ 3166 @Deprecated 3167 public static final int IMPORTANCE_CANT_SAVE_STATE_DEPRECATED = 170; 3168 3169 /** 3170 * Constant for {@link #importance}: This process is running an 3171 * application that can not save its state, and thus can't be killed 3172 * while in the background. 3173 * @hide 3174 */ 3175 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3176 3177 /** 3178 * Constant for {@link #importance}: This process is contains services 3179 * that should remain running. These are background services apps have 3180 * started, not something the user is aware of, so they may be killed by 3181 * the system relatively freely (though it is generally desired that they 3182 * stay running as long as they want to). 3183 */ 3184 public static final int IMPORTANCE_SERVICE = 300; 3185 3186 /** 3187 * Constant for {@link #importance}: This process process contains 3188 * cached code that is expendable, not actively running any app components 3189 * we care about. 3190 */ 3191 public static final int IMPORTANCE_CACHED = 400; 3192 3193 /** 3194 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3195 */ 3196 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3197 3198 /** 3199 * Constant for {@link #importance}: This process is empty of any 3200 * actively running code. 3201 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3202 */ 3203 @Deprecated 3204 public static final int IMPORTANCE_EMPTY = 500; 3205 3206 /** 3207 * Constant for {@link #importance}: This process does not exist. 3208 */ 3209 public static final int IMPORTANCE_GONE = 1000; 3210 3211 /** 3212 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3213 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3214 * @hide 3215 */ 3216 public static @Importance int procStateToImportance(int procState) { 3217 if (procState == PROCESS_STATE_NONEXISTENT) { 3218 return IMPORTANCE_GONE; 3219 } else if (procState >= PROCESS_STATE_HOME) { 3220 return IMPORTANCE_CACHED; 3221 } else if (procState >= PROCESS_STATE_SERVICE) { 3222 return IMPORTANCE_SERVICE; 3223 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3224 return IMPORTANCE_CANT_SAVE_STATE; 3225 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3226 return IMPORTANCE_PERCEPTIBLE; 3227 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3228 return IMPORTANCE_VISIBLE; 3229 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3230 return IMPORTANCE_TOP_SLEEPING; 3231 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3232 return IMPORTANCE_FOREGROUND_SERVICE; 3233 } else { 3234 return IMPORTANCE_FOREGROUND; 3235 } 3236 } 3237 3238 /** 3239 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3240 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3241 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3242 * client's target SDK < {@link VERSION_CODES#O}. 3243 * @hide 3244 */ 3245 public static @Importance int procStateToImportanceForClient(int procState, 3246 Context clientContext) { 3247 final int importance = procStateToImportance(procState); 3248 3249 // For pre O apps, convert to the old, wrong values. 3250 if (clientContext.getApplicationInfo().targetSdkVersion < VERSION_CODES.O) { 3251 switch (importance) { 3252 case IMPORTANCE_PERCEPTIBLE: 3253 return IMPORTANCE_PERCEPTIBLE_DEPRECATED; 3254 case IMPORTANCE_CANT_SAVE_STATE: 3255 return IMPORTANCE_CANT_SAVE_STATE_DEPRECATED; 3256 } 3257 } 3258 return importance; 3259 } 3260 3261 /** @hide */ 3262 public static int importanceToProcState(@Importance int importance) { 3263 if (importance == IMPORTANCE_GONE) { 3264 return PROCESS_STATE_NONEXISTENT; 3265 } else if (importance >= IMPORTANCE_CACHED) { 3266 return PROCESS_STATE_HOME; 3267 } else if (importance >= IMPORTANCE_SERVICE) { 3268 return PROCESS_STATE_SERVICE; 3269 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3270 return PROCESS_STATE_HEAVY_WEIGHT; 3271 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3272 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3273 } else if (importance >= IMPORTANCE_VISIBLE) { 3274 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3275 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3276 return PROCESS_STATE_TOP_SLEEPING; 3277 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3278 return PROCESS_STATE_FOREGROUND_SERVICE; 3279 } else { 3280 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3281 } 3282 } 3283 3284 /** 3285 * The relative importance level that the system places on this process. 3286 * These constants are numbered so that "more important" values are 3287 * always smaller than "less important" values. 3288 */ 3289 public @Importance int importance; 3290 3291 /** 3292 * An additional ordering within a particular {@link #importance} 3293 * category, providing finer-grained information about the relative 3294 * utility of processes within a category. This number means nothing 3295 * except that a smaller values are more recently used (and thus 3296 * more important). Currently an LRU value is only maintained for 3297 * the {@link #IMPORTANCE_CACHED} category, though others may 3298 * be maintained in the future. 3299 */ 3300 public int lru; 3301 3302 /** 3303 * Constant for {@link #importanceReasonCode}: nothing special has 3304 * been specified for the reason for this level. 3305 */ 3306 public static final int REASON_UNKNOWN = 0; 3307 3308 /** 3309 * Constant for {@link #importanceReasonCode}: one of the application's 3310 * content providers is being used by another process. The pid of 3311 * the client process is in {@link #importanceReasonPid} and the 3312 * target provider in this process is in 3313 * {@link #importanceReasonComponent}. 3314 */ 3315 public static final int REASON_PROVIDER_IN_USE = 1; 3316 3317 /** 3318 * Constant for {@link #importanceReasonCode}: one of the application's 3319 * content providers is being used by another process. The pid of 3320 * the client process is in {@link #importanceReasonPid} and the 3321 * target provider in this process is in 3322 * {@link #importanceReasonComponent}. 3323 */ 3324 public static final int REASON_SERVICE_IN_USE = 2; 3325 3326 /** 3327 * The reason for {@link #importance}, if any. 3328 */ 3329 public int importanceReasonCode; 3330 3331 /** 3332 * For the specified values of {@link #importanceReasonCode}, this 3333 * is the process ID of the other process that is a client of this 3334 * process. This will be 0 if no other process is using this one. 3335 */ 3336 public int importanceReasonPid; 3337 3338 /** 3339 * For the specified values of {@link #importanceReasonCode}, this 3340 * is the name of the component that is being used in this process. 3341 */ 3342 public ComponentName importanceReasonComponent; 3343 3344 /** 3345 * When {@link #importanceReasonPid} is non-0, this is the importance 3346 * of the other pid. @hide 3347 */ 3348 public int importanceReasonImportance; 3349 3350 /** 3351 * Current process state, as per PROCESS_STATE_* constants. 3352 * @hide 3353 */ 3354 public int processState; 3355 3356 public RunningAppProcessInfo() { 3357 importance = IMPORTANCE_FOREGROUND; 3358 importanceReasonCode = REASON_UNKNOWN; 3359 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3360 } 3361 3362 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3363 processName = pProcessName; 3364 pid = pPid; 3365 pkgList = pArr; 3366 } 3367 3368 public int describeContents() { 3369 return 0; 3370 } 3371 3372 public void writeToParcel(Parcel dest, int flags) { 3373 dest.writeString(processName); 3374 dest.writeInt(pid); 3375 dest.writeInt(uid); 3376 dest.writeStringArray(pkgList); 3377 dest.writeInt(this.flags); 3378 dest.writeInt(lastTrimLevel); 3379 dest.writeInt(importance); 3380 dest.writeInt(lru); 3381 dest.writeInt(importanceReasonCode); 3382 dest.writeInt(importanceReasonPid); 3383 ComponentName.writeToParcel(importanceReasonComponent, dest); 3384 dest.writeInt(importanceReasonImportance); 3385 dest.writeInt(processState); 3386 } 3387 3388 public void readFromParcel(Parcel source) { 3389 processName = source.readString(); 3390 pid = source.readInt(); 3391 uid = source.readInt(); 3392 pkgList = source.readStringArray(); 3393 flags = source.readInt(); 3394 lastTrimLevel = source.readInt(); 3395 importance = source.readInt(); 3396 lru = source.readInt(); 3397 importanceReasonCode = source.readInt(); 3398 importanceReasonPid = source.readInt(); 3399 importanceReasonComponent = ComponentName.readFromParcel(source); 3400 importanceReasonImportance = source.readInt(); 3401 processState = source.readInt(); 3402 } 3403 3404 public static final Creator<RunningAppProcessInfo> CREATOR = 3405 new Creator<RunningAppProcessInfo>() { 3406 public RunningAppProcessInfo createFromParcel(Parcel source) { 3407 return new RunningAppProcessInfo(source); 3408 } 3409 public RunningAppProcessInfo[] newArray(int size) { 3410 return new RunningAppProcessInfo[size]; 3411 } 3412 }; 3413 3414 private RunningAppProcessInfo(Parcel source) { 3415 readFromParcel(source); 3416 } 3417 } 3418 3419 /** 3420 * Returns a list of application processes installed on external media 3421 * that are running on the device. 3422 * 3423 * <p><b>Note: this method is only intended for debugging or building 3424 * a user-facing process management UI.</b></p> 3425 * 3426 * @return Returns a list of ApplicationInfo records, or null if none 3427 * This list ordering is not specified. 3428 * @hide 3429 */ 3430 public List<ApplicationInfo> getRunningExternalApplications() { 3431 try { 3432 return getService().getRunningExternalApplications(); 3433 } catch (RemoteException e) { 3434 throw e.rethrowFromSystemServer(); 3435 } 3436 } 3437 3438 /** 3439 * Sets the memory trim mode for a process and schedules a memory trim operation. 3440 * 3441 * <p><b>Note: this method is only intended for testing framework.</b></p> 3442 * 3443 * @return Returns true if successful. 3444 * @hide 3445 */ 3446 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3447 try { 3448 return getService().setProcessMemoryTrimLevel(process, userId, 3449 level); 3450 } catch (RemoteException e) { 3451 throw e.rethrowFromSystemServer(); 3452 } 3453 } 3454 3455 /** 3456 * Returns a list of application processes that are running on the device. 3457 * 3458 * <p><b>Note: this method is only intended for debugging or building 3459 * a user-facing process management UI.</b></p> 3460 * 3461 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3462 * running processes (it will not return an empty list). This list ordering is not 3463 * specified. 3464 */ 3465 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3466 try { 3467 return getService().getRunningAppProcesses(); 3468 } catch (RemoteException e) { 3469 throw e.rethrowFromSystemServer(); 3470 } 3471 } 3472 3473 /** 3474 * Return the importance of a given package name, based on the processes that are 3475 * currently running. The return value is one of the importance constants defined 3476 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3477 * processes that this package has code running inside of. If there are no processes 3478 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3479 * @hide 3480 */ 3481 @SystemApi @TestApi 3482 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3483 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3484 try { 3485 int procState = getService().getPackageProcessState(packageName, 3486 mContext.getOpPackageName()); 3487 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3488 } catch (RemoteException e) { 3489 throw e.rethrowFromSystemServer(); 3490 } 3491 } 3492 3493 /** 3494 * Return the importance of a given uid, based on the processes that are 3495 * currently running. The return value is one of the importance constants defined 3496 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3497 * processes that this uid has running. If there are no processes 3498 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3499 * @hide 3500 */ 3501 @SystemApi @TestApi 3502 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3503 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3504 try { 3505 int procState = getService().getUidProcessState(uid, 3506 mContext.getOpPackageName()); 3507 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3508 } catch (RemoteException e) { 3509 throw e.rethrowFromSystemServer(); 3510 } 3511 } 3512 3513 /** 3514 * Callback to get reports about changes to the importance of a uid. Use with 3515 * {@link #addOnUidImportanceListener}. 3516 * @hide 3517 */ 3518 @SystemApi @TestApi 3519 public interface OnUidImportanceListener { 3520 /** 3521 * The importance if a given uid has changed. Will be one of the importance 3522 * values in {@link RunningAppProcessInfo}; 3523 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3524 * when the uid is no longer running at all. This callback will happen on a thread 3525 * from a thread pool, not the main UI thread. 3526 * @param uid The uid whose importance has changed. 3527 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3528 */ 3529 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3530 } 3531 3532 /** 3533 * Start monitoring changes to the imoportance of uids running in the system. 3534 * @param listener The listener callback that will receive change reports. 3535 * @param importanceCutpoint The level of importance in which the caller is interested 3536 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3537 * is used here, you will receive a call each time a uids importance transitions between 3538 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3539 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3540 * 3541 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3542 * permission to use this feature.</p> 3543 * 3544 * @throws IllegalArgumentException If the listener is already registered. 3545 * @throws SecurityException If the caller does not hold 3546 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3547 * @hide 3548 */ 3549 @SystemApi @TestApi 3550 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3551 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3552 synchronized (this) { 3553 if (mImportanceListeners.containsKey(listener)) { 3554 throw new IllegalArgumentException("Listener already registered: " + listener); 3555 } 3556 // TODO: implement the cut point in the system process to avoid IPCs. 3557 UidObserver observer = new UidObserver(listener, mContext); 3558 try { 3559 getService().registerUidObserver(observer, 3560 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3561 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3562 mContext.getOpPackageName()); 3563 } catch (RemoteException e) { 3564 throw e.rethrowFromSystemServer(); 3565 } 3566 mImportanceListeners.put(listener, observer); 3567 } 3568 } 3569 3570 /** 3571 * Remove an importance listener that was previously registered with 3572 * {@link #addOnUidImportanceListener}. 3573 * 3574 * @throws IllegalArgumentException If the listener is not registered. 3575 * @hide 3576 */ 3577 @SystemApi @TestApi 3578 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3579 synchronized (this) { 3580 UidObserver observer = mImportanceListeners.remove(listener); 3581 if (observer == null) { 3582 throw new IllegalArgumentException("Listener not registered: " + listener); 3583 } 3584 try { 3585 getService().unregisterUidObserver(observer); 3586 } catch (RemoteException e) { 3587 throw e.rethrowFromSystemServer(); 3588 } 3589 } 3590 } 3591 3592 /** 3593 * Return global memory state information for the calling process. This 3594 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3595 * only fields that will be filled in are 3596 * {@link RunningAppProcessInfo#pid}, 3597 * {@link RunningAppProcessInfo#uid}, 3598 * {@link RunningAppProcessInfo#lastTrimLevel}, 3599 * {@link RunningAppProcessInfo#importance}, 3600 * {@link RunningAppProcessInfo#lru}, and 3601 * {@link RunningAppProcessInfo#importanceReasonCode}. 3602 */ 3603 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3604 try { 3605 getService().getMyMemoryState(outState); 3606 } catch (RemoteException e) { 3607 throw e.rethrowFromSystemServer(); 3608 } 3609 } 3610 3611 /** 3612 * Return information about the memory usage of one or more processes. 3613 * 3614 * <p><b>Note: this method is only intended for debugging or building 3615 * a user-facing process management UI.</b></p> 3616 * 3617 * @param pids The pids of the processes whose memory usage is to be 3618 * retrieved. 3619 * @return Returns an array of memory information, one for each 3620 * requested pid. 3621 */ 3622 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3623 try { 3624 return getService().getProcessMemoryInfo(pids); 3625 } catch (RemoteException e) { 3626 throw e.rethrowFromSystemServer(); 3627 } 3628 } 3629 3630 /** 3631 * @deprecated This is now just a wrapper for 3632 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3633 * is no longer available to applications because it allows them to 3634 * break other applications by removing their alarms, stopping their 3635 * services, etc. 3636 */ 3637 @Deprecated 3638 public void restartPackage(String packageName) { 3639 killBackgroundProcesses(packageName); 3640 } 3641 3642 /** 3643 * Have the system immediately kill all background processes associated 3644 * with the given package. This is the same as the kernel killing those 3645 * processes to reclaim memory; the system will take care of restarting 3646 * these processes in the future as needed. 3647 * 3648 * @param packageName The name of the package whose processes are to 3649 * be killed. 3650 */ 3651 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3652 public void killBackgroundProcesses(String packageName) { 3653 try { 3654 getService().killBackgroundProcesses(packageName, 3655 UserHandle.myUserId()); 3656 } catch (RemoteException e) { 3657 throw e.rethrowFromSystemServer(); 3658 } 3659 } 3660 3661 /** 3662 * Kills the specified UID. 3663 * @param uid The UID to kill. 3664 * @param reason The reason for the kill. 3665 * 3666 * @hide 3667 */ 3668 @SystemApi 3669 @RequiresPermission(Manifest.permission.KILL_UID) 3670 public void killUid(int uid, String reason) { 3671 try { 3672 getService().killUid(UserHandle.getAppId(uid), 3673 UserHandle.getUserId(uid), reason); 3674 } catch (RemoteException e) { 3675 throw e.rethrowFromSystemServer(); 3676 } 3677 } 3678 3679 /** 3680 * Have the system perform a force stop of everything associated with 3681 * the given application package. All processes that share its uid 3682 * will be killed, all services it has running stopped, all activities 3683 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3684 * broadcast will be sent, so that any of its registered alarms can 3685 * be stopped, notifications removed, etc. 3686 * 3687 * <p>You must hold the permission 3688 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3689 * call this method. 3690 * 3691 * @param packageName The name of the package to be stopped. 3692 * @param userId The user for which the running package is to be stopped. 3693 * 3694 * @hide This is not available to third party applications due to 3695 * it allowing them to break other applications by stopping their 3696 * services, removing their alarms, etc. 3697 */ 3698 public void forceStopPackageAsUser(String packageName, int userId) { 3699 try { 3700 getService().forceStopPackage(packageName, userId); 3701 } catch (RemoteException e) { 3702 throw e.rethrowFromSystemServer(); 3703 } 3704 } 3705 3706 /** 3707 * @see #forceStopPackageAsUser(String, int) 3708 * @hide 3709 */ 3710 @SystemApi 3711 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3712 public void forceStopPackage(String packageName) { 3713 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3714 } 3715 3716 /** 3717 * Get the device configuration attributes. 3718 */ 3719 public ConfigurationInfo getDeviceConfigurationInfo() { 3720 try { 3721 return getService().getDeviceConfigurationInfo(); 3722 } catch (RemoteException e) { 3723 throw e.rethrowFromSystemServer(); 3724 } 3725 } 3726 3727 /** 3728 * Get the preferred density of icons for the launcher. This is used when 3729 * custom drawables are created (e.g., for shortcuts). 3730 * 3731 * @return density in terms of DPI 3732 */ 3733 public int getLauncherLargeIconDensity() { 3734 final Resources res = mContext.getResources(); 3735 final int density = res.getDisplayMetrics().densityDpi; 3736 final int sw = res.getConfiguration().smallestScreenWidthDp; 3737 3738 if (sw < 600) { 3739 // Smaller than approx 7" tablets, use the regular icon size. 3740 return density; 3741 } 3742 3743 switch (density) { 3744 case DisplayMetrics.DENSITY_LOW: 3745 return DisplayMetrics.DENSITY_MEDIUM; 3746 case DisplayMetrics.DENSITY_MEDIUM: 3747 return DisplayMetrics.DENSITY_HIGH; 3748 case DisplayMetrics.DENSITY_TV: 3749 return DisplayMetrics.DENSITY_XHIGH; 3750 case DisplayMetrics.DENSITY_HIGH: 3751 return DisplayMetrics.DENSITY_XHIGH; 3752 case DisplayMetrics.DENSITY_XHIGH: 3753 return DisplayMetrics.DENSITY_XXHIGH; 3754 case DisplayMetrics.DENSITY_XXHIGH: 3755 return DisplayMetrics.DENSITY_XHIGH * 2; 3756 default: 3757 // The density is some abnormal value. Return some other 3758 // abnormal value that is a reasonable scaling of it. 3759 return (int)((density*1.5f)+.5f); 3760 } 3761 } 3762 3763 /** 3764 * Get the preferred launcher icon size. This is used when custom drawables 3765 * are created (e.g., for shortcuts). 3766 * 3767 * @return dimensions of square icons in terms of pixels 3768 */ 3769 public int getLauncherLargeIconSize() { 3770 return getLauncherLargeIconSizeInner(mContext); 3771 } 3772 3773 static int getLauncherLargeIconSizeInner(Context context) { 3774 final Resources res = context.getResources(); 3775 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3776 final int sw = res.getConfiguration().smallestScreenWidthDp; 3777 3778 if (sw < 600) { 3779 // Smaller than approx 7" tablets, use the regular icon size. 3780 return size; 3781 } 3782 3783 final int density = res.getDisplayMetrics().densityDpi; 3784 3785 switch (density) { 3786 case DisplayMetrics.DENSITY_LOW: 3787 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3788 case DisplayMetrics.DENSITY_MEDIUM: 3789 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3790 case DisplayMetrics.DENSITY_TV: 3791 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3792 case DisplayMetrics.DENSITY_HIGH: 3793 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3794 case DisplayMetrics.DENSITY_XHIGH: 3795 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3796 case DisplayMetrics.DENSITY_XXHIGH: 3797 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3798 default: 3799 // The density is some abnormal value. Return some other 3800 // abnormal value that is a reasonable scaling of it. 3801 return (int)((size*1.5f) + .5f); 3802 } 3803 } 3804 3805 /** 3806 * Returns "true" if the user interface is currently being messed with 3807 * by a monkey. 3808 */ 3809 public static boolean isUserAMonkey() { 3810 try { 3811 return getService().isUserAMonkey(); 3812 } catch (RemoteException e) { 3813 throw e.rethrowFromSystemServer(); 3814 } 3815 } 3816 3817 /** 3818 * Returns "true" if device is running in a test harness. 3819 */ 3820 public static boolean isRunningInTestHarness() { 3821 return SystemProperties.getBoolean("ro.test_harness", false); 3822 } 3823 3824 /** 3825 * Returns the launch count of each installed package. 3826 * 3827 * @hide 3828 */ 3829 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3830 try { 3831 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3832 ServiceManager.getService("usagestats")); 3833 if (usageStatsService == null) { 3834 return new HashMap<String, Integer>(); 3835 } 3836 3837 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3838 ActivityThread.currentPackageName()); 3839 if (allPkgUsageStats == null) { 3840 return new HashMap<String, Integer>(); 3841 } 3842 3843 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3844 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3845 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3846 } 3847 3848 return launchCounts; 3849 } catch (RemoteException e) { 3850 Log.w(TAG, "Could not query launch counts", e); 3851 return new HashMap<String, Integer>(); 3852 } 3853 }*/ 3854 3855 /** @hide */ 3856 public static int checkComponentPermission(String permission, int uid, 3857 int owningUid, boolean exported) { 3858 // Root, system server get to do everything. 3859 final int appId = UserHandle.getAppId(uid); 3860 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3861 return PackageManager.PERMISSION_GRANTED; 3862 } 3863 // Isolated processes don't get any permissions. 3864 if (UserHandle.isIsolated(uid)) { 3865 return PackageManager.PERMISSION_DENIED; 3866 } 3867 // If there is a uid that owns whatever is being accessed, it has 3868 // blanket access to it regardless of the permissions it requires. 3869 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3870 return PackageManager.PERMISSION_GRANTED; 3871 } 3872 // If the target is not exported, then nobody else can get to it. 3873 if (!exported) { 3874 /* 3875 RuntimeException here = new RuntimeException("here"); 3876 here.fillInStackTrace(); 3877 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3878 here); 3879 */ 3880 return PackageManager.PERMISSION_DENIED; 3881 } 3882 if (permission == null) { 3883 return PackageManager.PERMISSION_GRANTED; 3884 } 3885 try { 3886 return AppGlobals.getPackageManager() 3887 .checkUidPermission(permission, uid); 3888 } catch (RemoteException e) { 3889 throw e.rethrowFromSystemServer(); 3890 } 3891 } 3892 3893 /** @hide */ 3894 public static int checkUidPermission(String permission, int uid) { 3895 try { 3896 return AppGlobals.getPackageManager() 3897 .checkUidPermission(permission, uid); 3898 } catch (RemoteException e) { 3899 throw e.rethrowFromSystemServer(); 3900 } 3901 } 3902 3903 /** 3904 * @hide 3905 * Helper for dealing with incoming user arguments to system service calls. 3906 * Takes care of checking permissions and converting USER_CURRENT to the 3907 * actual current user. 3908 * 3909 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3910 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3911 * @param userId The user id argument supplied by the caller -- this is the user 3912 * they want to run as. 3913 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3914 * to get a USER_ALL returned and deal with it correctly. If false, 3915 * an exception will be thrown if USER_ALL is supplied. 3916 * @param requireFull If true, the caller must hold 3917 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3918 * different user than their current process; otherwise they must hold 3919 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3920 * @param name Optional textual name of the incoming call; only for generating error messages. 3921 * @param callerPackage Optional package name of caller; only for error messages. 3922 * 3923 * @return Returns the user ID that the call should run as. Will always be a concrete 3924 * user number, unless <var>allowAll</var> is true in which case it could also be 3925 * USER_ALL. 3926 */ 3927 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3928 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3929 if (UserHandle.getUserId(callingUid) == userId) { 3930 return userId; 3931 } 3932 try { 3933 return getService().handleIncomingUser(callingPid, 3934 callingUid, userId, allowAll, requireFull, name, callerPackage); 3935 } catch (RemoteException e) { 3936 throw e.rethrowFromSystemServer(); 3937 } 3938 } 3939 3940 /** 3941 * Gets the userId of the current foreground user. Requires system permissions. 3942 * @hide 3943 */ 3944 @SystemApi 3945 public static int getCurrentUser() { 3946 UserInfo ui; 3947 try { 3948 ui = getService().getCurrentUser(); 3949 return ui != null ? ui.id : 0; 3950 } catch (RemoteException e) { 3951 throw e.rethrowFromSystemServer(); 3952 } 3953 } 3954 3955 /** 3956 * @param userid the user's id. Zero indicates the default user. 3957 * @hide 3958 */ 3959 public boolean switchUser(int userid) { 3960 try { 3961 return getService().switchUser(userid); 3962 } catch (RemoteException e) { 3963 throw e.rethrowFromSystemServer(); 3964 } 3965 } 3966 3967 /** 3968 * Logs out current current foreground user by switching to the system user and stopping the 3969 * user being switched from. 3970 * @hide 3971 */ 3972 public static void logoutCurrentUser() { 3973 int currentUser = ActivityManager.getCurrentUser(); 3974 if (currentUser != UserHandle.USER_SYSTEM) { 3975 try { 3976 getService().switchUser(UserHandle.USER_SYSTEM); 3977 getService().stopUser(currentUser, /* force= */ false, null); 3978 } catch (RemoteException e) { 3979 e.rethrowFromSystemServer(); 3980 } 3981 } 3982 } 3983 3984 /** {@hide} */ 3985 public static final int FLAG_OR_STOPPED = 1 << 0; 3986 /** {@hide} */ 3987 public static final int FLAG_AND_LOCKED = 1 << 1; 3988 /** {@hide} */ 3989 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3990 /** {@hide} */ 3991 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3992 3993 /** 3994 * Return whether the given user is actively running. This means that 3995 * the user is in the "started" state, not "stopped" -- it is currently 3996 * allowed to run code through scheduled alarms, receiving broadcasts, 3997 * etc. A started user may be either the current foreground user or a 3998 * background user; the result here does not distinguish between the two. 3999 * @param userId the user's id. Zero indicates the default user. 4000 * @hide 4001 */ 4002 public boolean isUserRunning(int userId) { 4003 try { 4004 return getService().isUserRunning(userId, 0); 4005 } catch (RemoteException e) { 4006 throw e.rethrowFromSystemServer(); 4007 } 4008 } 4009 4010 /** {@hide} */ 4011 public boolean isVrModePackageEnabled(ComponentName component) { 4012 try { 4013 return getService().isVrModePackageEnabled(component); 4014 } catch (RemoteException e) { 4015 throw e.rethrowFromSystemServer(); 4016 } 4017 } 4018 4019 /** 4020 * Perform a system dump of various state associated with the given application 4021 * package name. This call blocks while the dump is being performed, so should 4022 * not be done on a UI thread. The data will be written to the given file 4023 * descriptor as text. 4024 * @param fd The file descriptor that the dump should be written to. The file 4025 * descriptor is <em>not</em> closed by this function; the caller continues to 4026 * own it. 4027 * @param packageName The name of the package that is to be dumped. 4028 */ 4029 @RequiresPermission(Manifest.permission.DUMP) 4030 public void dumpPackageState(FileDescriptor fd, String packageName) { 4031 dumpPackageStateStatic(fd, packageName); 4032 } 4033 4034 /** 4035 * @hide 4036 */ 4037 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4038 FileOutputStream fout = new FileOutputStream(fd); 4039 PrintWriter pw = new FastPrintWriter(fout); 4040 dumpService(pw, fd, "package", new String[] { packageName }); 4041 pw.println(); 4042 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4043 "-a", "package", packageName }); 4044 pw.println(); 4045 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4046 pw.println(); 4047 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4048 pw.println(); 4049 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4050 pw.println(); 4051 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4052 pw.flush(); 4053 } 4054 4055 /** 4056 * @hide 4057 */ 4058 public static boolean isSystemReady() { 4059 if (!sSystemReady) { 4060 if (ActivityThread.isSystem()) { 4061 sSystemReady = 4062 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4063 } else { 4064 // Since this is being called from outside system server, system should be 4065 // ready by now. 4066 sSystemReady = true; 4067 } 4068 } 4069 return sSystemReady; 4070 } 4071 4072 /** 4073 * @hide 4074 */ 4075 public static void broadcastStickyIntent(Intent intent, int userId) { 4076 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4077 } 4078 4079 /** 4080 * Convenience for sending a sticky broadcast. For internal use only. 4081 * 4082 * @hide 4083 */ 4084 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4085 try { 4086 getService().broadcastIntent( 4087 null, intent, null, null, Activity.RESULT_OK, null, null, 4088 null /*permission*/, appOp, null, false, true, userId); 4089 } catch (RemoteException ex) { 4090 } 4091 } 4092 4093 /** 4094 * @hide 4095 */ 4096 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4097 String tag) { 4098 try { 4099 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4100 sourceUid, sourcePkg, tag); 4101 } catch (RemoteException ex) { 4102 } 4103 } 4104 4105 /** 4106 * @hide 4107 */ 4108 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4109 try { 4110 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4111 } catch (RemoteException ex) { 4112 } 4113 } 4114 4115 /** 4116 * @hide 4117 */ 4118 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4119 try { 4120 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4121 } catch (RemoteException ex) { 4122 } 4123 } 4124 4125 /** 4126 * @hide 4127 */ 4128 public static IActivityManager getService() { 4129 return IActivityManagerSingleton.get(); 4130 } 4131 4132 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4133 new Singleton<IActivityManager>() { 4134 @Override 4135 protected IActivityManager create() { 4136 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4137 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4138 return am; 4139 } 4140 }; 4141 4142 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4143 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4144 IBinder service = ServiceManager.checkService(name); 4145 if (service == null) { 4146 pw.println(" (Service not found)"); 4147 return; 4148 } 4149 TransferPipe tp = null; 4150 try { 4151 pw.flush(); 4152 tp = new TransferPipe(); 4153 tp.setBufferPrefix(" "); 4154 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4155 tp.go(fd, 10000); 4156 } catch (Throwable e) { 4157 if (tp != null) { 4158 tp.kill(); 4159 } 4160 pw.println("Failure dumping service:"); 4161 e.printStackTrace(pw); 4162 } 4163 } 4164 4165 /** 4166 * Request that the system start watching for the calling process to exceed a pss 4167 * size as given here. Once called, the system will look for any occasions where it 4168 * sees the associated process with a larger pss size and, when this happens, automatically 4169 * pull a heap dump from it and allow the user to share the data. Note that this request 4170 * continues running even if the process is killed and restarted. To remove the watch, 4171 * use {@link #clearWatchHeapLimit()}. 4172 * 4173 * <p>This API only work if the calling process has been marked as 4174 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4175 * (userdebug or eng) build.</p> 4176 * 4177 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4178 * handle heap limit reports themselves.</p> 4179 * 4180 * @param pssSize The size in bytes to set the limit at. 4181 */ 4182 public void setWatchHeapLimit(long pssSize) { 4183 try { 4184 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4185 mContext.getPackageName()); 4186 } catch (RemoteException e) { 4187 throw e.rethrowFromSystemServer(); 4188 } 4189 } 4190 4191 /** 4192 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4193 * If your package has an activity handling this action, it will be launched with the 4194 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4195 * match the activty must support this action and a MIME type of "*/*". 4196 */ 4197 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4198 4199 /** 4200 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4201 */ 4202 public void clearWatchHeapLimit() { 4203 try { 4204 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4205 } catch (RemoteException e) { 4206 throw e.rethrowFromSystemServer(); 4207 } 4208 } 4209 4210 /** 4211 * @hide 4212 */ 4213 public void startLockTaskMode(int taskId) { 4214 try { 4215 getService().startLockTaskModeById(taskId); 4216 } catch (RemoteException e) { 4217 throw e.rethrowFromSystemServer(); 4218 } 4219 } 4220 4221 /** 4222 * @hide 4223 */ 4224 public void stopLockTaskMode() { 4225 try { 4226 getService().stopLockTaskMode(); 4227 } catch (RemoteException e) { 4228 throw e.rethrowFromSystemServer(); 4229 } 4230 } 4231 4232 /** 4233 * Return whether currently in lock task mode. When in this mode 4234 * no new tasks can be created or switched to. 4235 * 4236 * @see Activity#startLockTask() 4237 * 4238 * @deprecated Use {@link #getLockTaskModeState} instead. 4239 */ 4240 @Deprecated 4241 public boolean isInLockTaskMode() { 4242 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4243 } 4244 4245 /** 4246 * Return the current state of task locking. The three possible outcomes 4247 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4248 * and {@link #LOCK_TASK_MODE_PINNED}. 4249 * 4250 * @see Activity#startLockTask() 4251 */ 4252 public int getLockTaskModeState() { 4253 try { 4254 return getService().getLockTaskModeState(); 4255 } catch (RemoteException e) { 4256 throw e.rethrowFromSystemServer(); 4257 } 4258 } 4259 4260 /** 4261 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4262 * thread can be a VR thread in a process at a time, and that thread may be subject to 4263 * restrictions on the amount of time it can run. 4264 * 4265 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4266 * method will return to normal operation, and calling this method will do nothing while 4267 * persistent VR mode is enabled. 4268 * 4269 * To reset the VR thread for an application, a tid of 0 can be passed. 4270 * 4271 * @see android.os.Process#myTid() 4272 * @param tid tid of the VR thread 4273 */ 4274 public static void setVrThread(int tid) { 4275 try { 4276 getService().setVrThread(tid); 4277 } catch (RemoteException e) { 4278 // pass 4279 } 4280 } 4281 4282 /** 4283 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4284 * beyond a single process. Only one thread can be a 4285 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4286 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4287 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4288 * persistent VR thread loses its new scheduling priority; this method must be called again to 4289 * set the persistent thread. 4290 * 4291 * To reset the persistent VR thread, a tid of 0 can be passed. 4292 * 4293 * @see android.os.Process#myTid() 4294 * @param tid tid of the VR thread 4295 * @hide 4296 */ 4297 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4298 public static void setPersistentVrThread(int tid) { 4299 try { 4300 getService().setPersistentVrThread(tid); 4301 } catch (RemoteException e) { 4302 // pass 4303 } 4304 } 4305 4306 /** 4307 * The AppTask allows you to manage your own application's tasks. 4308 * See {@link android.app.ActivityManager#getAppTasks()} 4309 */ 4310 public static class AppTask { 4311 private IAppTask mAppTaskImpl; 4312 4313 /** @hide */ 4314 public AppTask(IAppTask task) { 4315 mAppTaskImpl = task; 4316 } 4317 4318 /** 4319 * Finishes all activities in this task and removes it from the recent tasks list. 4320 */ 4321 public void finishAndRemoveTask() { 4322 try { 4323 mAppTaskImpl.finishAndRemoveTask(); 4324 } catch (RemoteException e) { 4325 throw e.rethrowFromSystemServer(); 4326 } 4327 } 4328 4329 /** 4330 * Get the RecentTaskInfo associated with this task. 4331 * 4332 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4333 */ 4334 public RecentTaskInfo getTaskInfo() { 4335 try { 4336 return mAppTaskImpl.getTaskInfo(); 4337 } catch (RemoteException e) { 4338 throw e.rethrowFromSystemServer(); 4339 } 4340 } 4341 4342 /** 4343 * Bring this task to the foreground. If it contains activities, they will be 4344 * brought to the foreground with it and their instances re-created if needed. 4345 * If it doesn't contain activities, the root activity of the task will be 4346 * re-launched. 4347 */ 4348 public void moveToFront() { 4349 try { 4350 mAppTaskImpl.moveToFront(); 4351 } catch (RemoteException e) { 4352 throw e.rethrowFromSystemServer(); 4353 } 4354 } 4355 4356 /** 4357 * Start an activity in this task. Brings the task to the foreground. If this task 4358 * is not currently active (that is, its id < 0), then a new activity for the given 4359 * Intent will be launched as the root of the task and the task brought to the 4360 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4361 * an activity to launch in a new task, then a new activity for the given Intent will 4362 * be launched on top of the task and the task brought to the foreground. If this 4363 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4364 * or would otherwise be launched in to a new task, then the activity not launched but 4365 * this task be brought to the foreground and a new intent delivered to the top 4366 * activity if appropriate. 4367 * 4368 * <p>In other words, you generally want to use an Intent here that does not specify 4369 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4370 * and let the system do the right thing.</p> 4371 * 4372 * @param intent The Intent describing the new activity to be launched on the task. 4373 * @param options Optional launch options. 4374 * 4375 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4376 */ 4377 public void startActivity(Context context, Intent intent, Bundle options) { 4378 ActivityThread thread = ActivityThread.currentActivityThread(); 4379 thread.getInstrumentation().execStartActivityFromAppTask(context, 4380 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4381 } 4382 4383 /** 4384 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4385 * Intent of this AppTask. 4386 * 4387 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4388 * be set; otherwise, it will be cleared. 4389 */ 4390 public void setExcludeFromRecents(boolean exclude) { 4391 try { 4392 mAppTaskImpl.setExcludeFromRecents(exclude); 4393 } catch (RemoteException e) { 4394 throw e.rethrowFromSystemServer(); 4395 } 4396 } 4397 } 4398} 4399