ActivityManager.java revision 000ce805050f0bdbf485464b84eb2c08bca5ad72
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 /** @removed */ 1128 @Deprecated 1129 public static int getMaxNumPictureInPictureActions() { 1130 return 3; 1131 } 1132 1133 /** 1134 * Information you can set and retrieve about the current activity within the recent task list. 1135 */ 1136 public static class TaskDescription implements Parcelable { 1137 /** @hide */ 1138 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1139 private static final String ATTR_TASKDESCRIPTIONLABEL = 1140 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1141 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1142 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1143 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1144 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1145 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1146 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1147 1148 private String mLabel; 1149 private Bitmap mIcon; 1150 private String mIconFilename; 1151 private int mColorPrimary; 1152 private int mColorBackground; 1153 private int mStatusBarColor; 1154 private int mNavigationBarColor; 1155 1156 /** 1157 * Creates the TaskDescription to the specified values. 1158 * 1159 * @param label A label and description of the current state of this task. 1160 * @param icon An icon that represents the current state of this task. 1161 * @param colorPrimary A color to override the theme's primary color. This color must be 1162 * opaque. 1163 */ 1164 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1165 this(label, icon, null, colorPrimary, 0, 0, 0); 1166 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1167 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1168 } 1169 } 1170 1171 /** 1172 * Creates the TaskDescription to the specified values. 1173 * 1174 * @param label A label and description of the current state of this activity. 1175 * @param icon An icon that represents the current state of this activity. 1176 */ 1177 public TaskDescription(String label, Bitmap icon) { 1178 this(label, icon, null, 0, 0, 0, 0); 1179 } 1180 1181 /** 1182 * Creates the TaskDescription to the specified values. 1183 * 1184 * @param label A label and description of the current state of this activity. 1185 */ 1186 public TaskDescription(String label) { 1187 this(label, null, null, 0, 0, 0, 0); 1188 } 1189 1190 /** 1191 * Creates an empty TaskDescription. 1192 */ 1193 public TaskDescription() { 1194 this(null, null, null, 0, 0, 0, 0); 1195 } 1196 1197 /** @hide */ 1198 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1199 int colorBackground, int statusBarColor, int navigationBarColor) { 1200 mLabel = label; 1201 mIcon = icon; 1202 mIconFilename = iconFilename; 1203 mColorPrimary = colorPrimary; 1204 mColorBackground = colorBackground; 1205 mStatusBarColor = statusBarColor; 1206 mNavigationBarColor = navigationBarColor; 1207 } 1208 1209 /** 1210 * Creates a copy of another TaskDescription. 1211 */ 1212 public TaskDescription(TaskDescription td) { 1213 copyFrom(td); 1214 } 1215 1216 /** 1217 * Copies this the values from another TaskDescription. 1218 * @hide 1219 */ 1220 public void copyFrom(TaskDescription other) { 1221 mLabel = other.mLabel; 1222 mIcon = other.mIcon; 1223 mIconFilename = other.mIconFilename; 1224 mColorPrimary = other.mColorPrimary; 1225 mColorBackground = other.mColorBackground; 1226 mStatusBarColor = other.mStatusBarColor; 1227 mNavigationBarColor = other.mNavigationBarColor; 1228 } 1229 1230 /** 1231 * Copies this the values from another TaskDescription, but preserves the hidden fields 1232 * if they weren't set on {@code other} 1233 * @hide 1234 */ 1235 public void copyFromPreserveHiddenFields(TaskDescription other) { 1236 mLabel = other.mLabel; 1237 mIcon = other.mIcon; 1238 mIconFilename = other.mIconFilename; 1239 mColorPrimary = other.mColorPrimary; 1240 if (other.mColorBackground != 0) { 1241 mColorBackground = other.mColorBackground; 1242 } 1243 if (other.mStatusBarColor != 0) { 1244 mStatusBarColor = other.mStatusBarColor; 1245 } 1246 if (other.mNavigationBarColor != 0) { 1247 mNavigationBarColor = other.mNavigationBarColor; 1248 } 1249 } 1250 1251 private TaskDescription(Parcel source) { 1252 readFromParcel(source); 1253 } 1254 1255 /** 1256 * Sets the label for this task description. 1257 * @hide 1258 */ 1259 public void setLabel(String label) { 1260 mLabel = label; 1261 } 1262 1263 /** 1264 * Sets the primary color for this task description. 1265 * @hide 1266 */ 1267 public void setPrimaryColor(int primaryColor) { 1268 // Ensure that the given color is valid 1269 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1270 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1271 } 1272 mColorPrimary = primaryColor; 1273 } 1274 1275 /** 1276 * Sets the background color for this task description. 1277 * @hide 1278 */ 1279 public void setBackgroundColor(int backgroundColor) { 1280 // Ensure that the given color is valid 1281 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1282 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1283 } 1284 mColorBackground = backgroundColor; 1285 } 1286 1287 /** 1288 * @hide 1289 */ 1290 public void setStatusBarColor(int statusBarColor) { 1291 mStatusBarColor = statusBarColor; 1292 } 1293 1294 /** 1295 * @hide 1296 */ 1297 public void setNavigationBarColor(int navigationBarColor) { 1298 mNavigationBarColor = navigationBarColor; 1299 } 1300 1301 /** 1302 * Sets the icon for this task description. 1303 * @hide 1304 */ 1305 public void setIcon(Bitmap icon) { 1306 mIcon = icon; 1307 } 1308 1309 /** 1310 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1311 * bitmap. 1312 * @hide 1313 */ 1314 public void setIconFilename(String iconFilename) { 1315 mIconFilename = iconFilename; 1316 mIcon = null; 1317 } 1318 1319 /** 1320 * @return The label and description of the current state of this task. 1321 */ 1322 public String getLabel() { 1323 return mLabel; 1324 } 1325 1326 /** 1327 * @return The icon that represents the current state of this task. 1328 */ 1329 public Bitmap getIcon() { 1330 if (mIcon != null) { 1331 return mIcon; 1332 } 1333 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1334 } 1335 1336 /** @hide */ 1337 public String getIconFilename() { 1338 return mIconFilename; 1339 } 1340 1341 /** @hide */ 1342 public Bitmap getInMemoryIcon() { 1343 return mIcon; 1344 } 1345 1346 /** @hide */ 1347 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1348 if (iconFilename != null) { 1349 try { 1350 return getService().getTaskDescriptionIcon(iconFilename, 1351 userId); 1352 } catch (RemoteException e) { 1353 throw e.rethrowFromSystemServer(); 1354 } 1355 } 1356 return null; 1357 } 1358 1359 /** 1360 * @return The color override on the theme's primary color. 1361 */ 1362 public int getPrimaryColor() { 1363 return mColorPrimary; 1364 } 1365 1366 /** 1367 * @return The background color. 1368 * @hide 1369 */ 1370 public int getBackgroundColor() { 1371 return mColorBackground; 1372 } 1373 1374 /** 1375 * @hide 1376 */ 1377 public int getStatusBarColor() { 1378 return mStatusBarColor; 1379 } 1380 1381 /** 1382 * @hide 1383 */ 1384 public int getNavigationBarColor() { 1385 return mNavigationBarColor; 1386 } 1387 1388 /** @hide */ 1389 public void saveToXml(XmlSerializer out) throws IOException { 1390 if (mLabel != null) { 1391 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1392 } 1393 if (mColorPrimary != 0) { 1394 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1395 Integer.toHexString(mColorPrimary)); 1396 } 1397 if (mColorBackground != 0) { 1398 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1399 Integer.toHexString(mColorBackground)); 1400 } 1401 if (mIconFilename != null) { 1402 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1403 } 1404 } 1405 1406 /** @hide */ 1407 public void restoreFromXml(String attrName, String attrValue) { 1408 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1409 setLabel(attrValue); 1410 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1411 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1412 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1413 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1414 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1415 setIconFilename(attrValue); 1416 } 1417 } 1418 1419 @Override 1420 public int describeContents() { 1421 return 0; 1422 } 1423 1424 @Override 1425 public void writeToParcel(Parcel dest, int flags) { 1426 if (mLabel == null) { 1427 dest.writeInt(0); 1428 } else { 1429 dest.writeInt(1); 1430 dest.writeString(mLabel); 1431 } 1432 if (mIcon == null) { 1433 dest.writeInt(0); 1434 } else { 1435 dest.writeInt(1); 1436 mIcon.writeToParcel(dest, 0); 1437 } 1438 dest.writeInt(mColorPrimary); 1439 dest.writeInt(mColorBackground); 1440 dest.writeInt(mStatusBarColor); 1441 dest.writeInt(mNavigationBarColor); 1442 if (mIconFilename == null) { 1443 dest.writeInt(0); 1444 } else { 1445 dest.writeInt(1); 1446 dest.writeString(mIconFilename); 1447 } 1448 } 1449 1450 public void readFromParcel(Parcel source) { 1451 mLabel = source.readInt() > 0 ? source.readString() : null; 1452 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1453 mColorPrimary = source.readInt(); 1454 mColorBackground = source.readInt(); 1455 mStatusBarColor = source.readInt(); 1456 mNavigationBarColor = source.readInt(); 1457 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1458 } 1459 1460 public static final Creator<TaskDescription> CREATOR 1461 = new Creator<TaskDescription>() { 1462 public TaskDescription createFromParcel(Parcel source) { 1463 return new TaskDescription(source); 1464 } 1465 public TaskDescription[] newArray(int size) { 1466 return new TaskDescription[size]; 1467 } 1468 }; 1469 1470 @Override 1471 public String toString() { 1472 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1473 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1474 " colorBackground: " + mColorBackground + 1475 " statusBarColor: " + mColorBackground + 1476 " navigationBarColor: " + mNavigationBarColor; 1477 } 1478 } 1479 1480 /** 1481 * Information you can retrieve about tasks that the user has most recently 1482 * started or visited. 1483 */ 1484 public static class RecentTaskInfo implements Parcelable { 1485 /** 1486 * If this task is currently running, this is the identifier for it. 1487 * If it is not running, this will be -1. 1488 */ 1489 public int id; 1490 1491 /** 1492 * The true identifier of this task, valid even if it is not running. 1493 */ 1494 public int persistentId; 1495 1496 /** 1497 * The original Intent used to launch the task. You can use this 1498 * Intent to re-launch the task (if it is no longer running) or bring 1499 * the current task to the front. 1500 */ 1501 public Intent baseIntent; 1502 1503 /** 1504 * If this task was started from an alias, this is the actual 1505 * activity component that was initially started; the component of 1506 * the baseIntent in this case is the name of the actual activity 1507 * implementation that the alias referred to. Otherwise, this is null. 1508 */ 1509 public ComponentName origActivity; 1510 1511 /** 1512 * The actual activity component that started the task. 1513 * @hide 1514 */ 1515 @Nullable 1516 public ComponentName realActivity; 1517 1518 /** 1519 * Description of the task's last state. 1520 */ 1521 public CharSequence description; 1522 1523 /** 1524 * The id of the ActivityStack this Task was on most recently. 1525 * @hide 1526 */ 1527 public int stackId; 1528 1529 /** 1530 * The id of the user the task was running as. 1531 * @hide 1532 */ 1533 public int userId; 1534 1535 /** 1536 * The first time this task was active. 1537 * @hide 1538 */ 1539 public long firstActiveTime; 1540 1541 /** 1542 * The last time this task was active. 1543 * @hide 1544 */ 1545 public long lastActiveTime; 1546 1547 /** 1548 * The recent activity values for the highest activity in the stack to have set the values. 1549 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1550 */ 1551 public TaskDescription taskDescription; 1552 1553 /** 1554 * Task affiliation for grouping with other tasks. 1555 */ 1556 public int affiliatedTaskId; 1557 1558 /** 1559 * Task affiliation color of the source task with the affiliated task id. 1560 * 1561 * @hide 1562 */ 1563 public int affiliatedTaskColor; 1564 1565 /** 1566 * The component launched as the first activity in the task. 1567 * This can be considered the "application" of this task. 1568 */ 1569 public ComponentName baseActivity; 1570 1571 /** 1572 * The activity component at the top of the history stack of the task. 1573 * This is what the user is currently doing. 1574 */ 1575 public ComponentName topActivity; 1576 1577 /** 1578 * Number of activities in this task. 1579 */ 1580 public int numActivities; 1581 1582 /** 1583 * The bounds of the task. 1584 * @hide 1585 */ 1586 public Rect bounds; 1587 1588 /** 1589 * True if the task can go in the docked stack. 1590 * @hide 1591 */ 1592 public boolean supportsSplitScreenMultiWindow; 1593 1594 /** 1595 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1596 * @hide 1597 */ 1598 public int resizeMode; 1599 1600 public RecentTaskInfo() { 1601 } 1602 1603 @Override 1604 public int describeContents() { 1605 return 0; 1606 } 1607 1608 @Override 1609 public void writeToParcel(Parcel dest, int flags) { 1610 dest.writeInt(id); 1611 dest.writeInt(persistentId); 1612 if (baseIntent != null) { 1613 dest.writeInt(1); 1614 baseIntent.writeToParcel(dest, 0); 1615 } else { 1616 dest.writeInt(0); 1617 } 1618 ComponentName.writeToParcel(origActivity, dest); 1619 ComponentName.writeToParcel(realActivity, dest); 1620 TextUtils.writeToParcel(description, dest, 1621 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1622 if (taskDescription != null) { 1623 dest.writeInt(1); 1624 taskDescription.writeToParcel(dest, 0); 1625 } else { 1626 dest.writeInt(0); 1627 } 1628 dest.writeInt(stackId); 1629 dest.writeInt(userId); 1630 dest.writeLong(firstActiveTime); 1631 dest.writeLong(lastActiveTime); 1632 dest.writeInt(affiliatedTaskId); 1633 dest.writeInt(affiliatedTaskColor); 1634 ComponentName.writeToParcel(baseActivity, dest); 1635 ComponentName.writeToParcel(topActivity, dest); 1636 dest.writeInt(numActivities); 1637 if (bounds != null) { 1638 dest.writeInt(1); 1639 bounds.writeToParcel(dest, 0); 1640 } else { 1641 dest.writeInt(0); 1642 } 1643 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1644 dest.writeInt(resizeMode); 1645 } 1646 1647 public void readFromParcel(Parcel source) { 1648 id = source.readInt(); 1649 persistentId = source.readInt(); 1650 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1651 origActivity = ComponentName.readFromParcel(source); 1652 realActivity = ComponentName.readFromParcel(source); 1653 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1654 taskDescription = source.readInt() > 0 ? 1655 TaskDescription.CREATOR.createFromParcel(source) : null; 1656 stackId = source.readInt(); 1657 userId = source.readInt(); 1658 firstActiveTime = source.readLong(); 1659 lastActiveTime = source.readLong(); 1660 affiliatedTaskId = source.readInt(); 1661 affiliatedTaskColor = source.readInt(); 1662 baseActivity = ComponentName.readFromParcel(source); 1663 topActivity = ComponentName.readFromParcel(source); 1664 numActivities = source.readInt(); 1665 bounds = source.readInt() > 0 ? 1666 Rect.CREATOR.createFromParcel(source) : null; 1667 supportsSplitScreenMultiWindow = source.readInt() == 1; 1668 resizeMode = source.readInt(); 1669 } 1670 1671 public static final Creator<RecentTaskInfo> CREATOR 1672 = new Creator<RecentTaskInfo>() { 1673 public RecentTaskInfo createFromParcel(Parcel source) { 1674 return new RecentTaskInfo(source); 1675 } 1676 public RecentTaskInfo[] newArray(int size) { 1677 return new RecentTaskInfo[size]; 1678 } 1679 }; 1680 1681 private RecentTaskInfo(Parcel source) { 1682 readFromParcel(source); 1683 } 1684 } 1685 1686 /** 1687 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1688 * that have set their 1689 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1690 */ 1691 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1692 1693 /** 1694 * Provides a list that does not contain any 1695 * recent tasks that currently are not available to the user. 1696 */ 1697 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1698 1699 /** 1700 * Provides a list that contains recent tasks for all 1701 * profiles of a user. 1702 * @hide 1703 */ 1704 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1705 1706 /** 1707 * Ignores all tasks that are on the home stack. 1708 * @hide 1709 */ 1710 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1711 1712 /** 1713 * Ignores the top task in the docked stack. 1714 * @hide 1715 */ 1716 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1717 1718 /** 1719 * Ignores all tasks that are on the pinned stack. 1720 * @hide 1721 */ 1722 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1723 1724 /** 1725 * <p></p>Return a list of the tasks that the user has recently launched, with 1726 * the most recent being first and older ones after in order. 1727 * 1728 * <p><b>Note: this method is only intended for debugging and presenting 1729 * task management user interfaces</b>. This should never be used for 1730 * core logic in an application, such as deciding between different 1731 * behaviors based on the information found here. Such uses are 1732 * <em>not</em> supported, and will likely break in the future. For 1733 * example, if multiple applications can be actively running at the 1734 * same time, assumptions made about the meaning of the data here for 1735 * purposes of control flow will be incorrect.</p> 1736 * 1737 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1738 * no longer available to third party applications: the introduction of 1739 * document-centric recents means 1740 * it can leak personal information to the caller. For backwards compatibility, 1741 * it will still return a small subset of its data: at least the caller's 1742 * own tasks (though see {@link #getAppTasks()} for the correct supported 1743 * way to retrieve that information), and possibly some other tasks 1744 * such as home that are known to not be sensitive. 1745 * 1746 * @param maxNum The maximum number of entries to return in the list. The 1747 * actual number returned may be smaller, depending on how many tasks the 1748 * user has started and the maximum number the system can remember. 1749 * @param flags Information about what to return. May be any combination 1750 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1751 * 1752 * @return Returns a list of RecentTaskInfo records describing each of 1753 * the recent tasks. 1754 */ 1755 @Deprecated 1756 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1757 throws SecurityException { 1758 try { 1759 return getService().getRecentTasks(maxNum, 1760 flags, UserHandle.myUserId()).getList(); 1761 } catch (RemoteException e) { 1762 throw e.rethrowFromSystemServer(); 1763 } 1764 } 1765 1766 /** 1767 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1768 * specific user. It requires holding 1769 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1770 * @param maxNum The maximum number of entries to return in the list. The 1771 * actual number returned may be smaller, depending on how many tasks the 1772 * user has started and the maximum number the system can remember. 1773 * @param flags Information about what to return. May be any combination 1774 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1775 * 1776 * @return Returns a list of RecentTaskInfo records describing each of 1777 * the recent tasks. Most recently activated tasks go first. 1778 * 1779 * @hide 1780 */ 1781 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1782 throws SecurityException { 1783 try { 1784 return getService().getRecentTasks(maxNum, 1785 flags, userId).getList(); 1786 } catch (RemoteException e) { 1787 throw e.rethrowFromSystemServer(); 1788 } 1789 } 1790 1791 /** 1792 * Information you can retrieve about a particular task that is currently 1793 * "running" in the system. Note that a running task does not mean the 1794 * given task actually has a process it is actively running in; it simply 1795 * means that the user has gone to it and never closed it, but currently 1796 * the system may have killed its process and is only holding on to its 1797 * last state in order to restart it when the user returns. 1798 */ 1799 public static class RunningTaskInfo implements Parcelable { 1800 /** 1801 * A unique identifier for this task. 1802 */ 1803 public int id; 1804 1805 /** 1806 * The stack that currently contains this task. 1807 * @hide 1808 */ 1809 public int stackId; 1810 1811 /** 1812 * The component launched as the first activity in the task. This can 1813 * be considered the "application" of this task. 1814 */ 1815 public ComponentName baseActivity; 1816 1817 /** 1818 * The activity component at the top of the history stack of the task. 1819 * This is what the user is currently doing. 1820 */ 1821 public ComponentName topActivity; 1822 1823 /** 1824 * Thumbnail representation of the task's current state. Currently 1825 * always null. 1826 */ 1827 public Bitmap thumbnail; 1828 1829 /** 1830 * Description of the task's current state. 1831 */ 1832 public CharSequence description; 1833 1834 /** 1835 * Number of activities in this task. 1836 */ 1837 public int numActivities; 1838 1839 /** 1840 * Number of activities that are currently running (not stopped 1841 * and persisted) in this task. 1842 */ 1843 public int numRunning; 1844 1845 /** 1846 * Last time task was run. For sorting. 1847 * @hide 1848 */ 1849 public long lastActiveTime; 1850 1851 /** 1852 * True if the task can go in the docked stack. 1853 * @hide 1854 */ 1855 public boolean supportsSplitScreenMultiWindow; 1856 1857 /** 1858 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1859 * @hide 1860 */ 1861 public int resizeMode; 1862 1863 public RunningTaskInfo() { 1864 } 1865 1866 public int describeContents() { 1867 return 0; 1868 } 1869 1870 public void writeToParcel(Parcel dest, int flags) { 1871 dest.writeInt(id); 1872 dest.writeInt(stackId); 1873 ComponentName.writeToParcel(baseActivity, dest); 1874 ComponentName.writeToParcel(topActivity, dest); 1875 if (thumbnail != null) { 1876 dest.writeInt(1); 1877 thumbnail.writeToParcel(dest, 0); 1878 } else { 1879 dest.writeInt(0); 1880 } 1881 TextUtils.writeToParcel(description, dest, 1882 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1883 dest.writeInt(numActivities); 1884 dest.writeInt(numRunning); 1885 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1886 dest.writeInt(resizeMode); 1887 } 1888 1889 public void readFromParcel(Parcel source) { 1890 id = source.readInt(); 1891 stackId = source.readInt(); 1892 baseActivity = ComponentName.readFromParcel(source); 1893 topActivity = ComponentName.readFromParcel(source); 1894 if (source.readInt() != 0) { 1895 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1896 } else { 1897 thumbnail = null; 1898 } 1899 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1900 numActivities = source.readInt(); 1901 numRunning = source.readInt(); 1902 supportsSplitScreenMultiWindow = source.readInt() != 0; 1903 resizeMode = source.readInt(); 1904 } 1905 1906 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1907 public RunningTaskInfo createFromParcel(Parcel source) { 1908 return new RunningTaskInfo(source); 1909 } 1910 public RunningTaskInfo[] newArray(int size) { 1911 return new RunningTaskInfo[size]; 1912 } 1913 }; 1914 1915 private RunningTaskInfo(Parcel source) { 1916 readFromParcel(source); 1917 } 1918 } 1919 1920 /** 1921 * Get the list of tasks associated with the calling application. 1922 * 1923 * @return The list of tasks associated with the application making this call. 1924 * @throws SecurityException 1925 */ 1926 public List<ActivityManager.AppTask> getAppTasks() { 1927 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1928 List<IBinder> appTasks; 1929 try { 1930 appTasks = getService().getAppTasks(mContext.getPackageName()); 1931 } catch (RemoteException e) { 1932 throw e.rethrowFromSystemServer(); 1933 } 1934 int numAppTasks = appTasks.size(); 1935 for (int i = 0; i < numAppTasks; i++) { 1936 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1937 } 1938 return tasks; 1939 } 1940 1941 /** 1942 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1943 * with {@link #addAppTask}. 1944 */ 1945 public Size getAppTaskThumbnailSize() { 1946 synchronized (this) { 1947 ensureAppTaskThumbnailSizeLocked(); 1948 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1949 } 1950 } 1951 1952 private void ensureAppTaskThumbnailSizeLocked() { 1953 if (mAppTaskThumbnailSize == null) { 1954 try { 1955 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1956 } catch (RemoteException e) { 1957 throw e.rethrowFromSystemServer(); 1958 } 1959 } 1960 } 1961 1962 /** 1963 * Add a new {@link AppTask} for the calling application. This will create a new 1964 * recents entry that is added to the <b>end</b> of all existing recents. 1965 * 1966 * @param activity The activity that is adding the entry. This is used to help determine 1967 * the context that the new recents entry will be in. 1968 * @param intent The Intent that describes the recents entry. This is the same Intent that 1969 * you would have used to launch the activity for it. In generally you will want to set 1970 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1971 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1972 * entry will exist without an activity, so it doesn't make sense to not retain it when 1973 * its activity disappears. The given Intent here also must have an explicit ComponentName 1974 * set on it. 1975 * @param description Optional additional description information. 1976 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1977 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1978 * recreated in your process, probably in a way you don't like, before the recents entry 1979 * is added. 1980 * 1981 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1982 * most likely cause of failure is that there is no more room for more tasks for your app. 1983 */ 1984 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1985 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1986 Point size; 1987 synchronized (this) { 1988 ensureAppTaskThumbnailSizeLocked(); 1989 size = mAppTaskThumbnailSize; 1990 } 1991 final int tw = thumbnail.getWidth(); 1992 final int th = thumbnail.getHeight(); 1993 if (tw != size.x || th != size.y) { 1994 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1995 1996 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1997 float scale; 1998 float dx = 0, dy = 0; 1999 if (tw * size.x > size.y * th) { 2000 scale = (float) size.x / (float) th; 2001 dx = (size.y - tw * scale) * 0.5f; 2002 } else { 2003 scale = (float) size.y / (float) tw; 2004 dy = (size.x - th * scale) * 0.5f; 2005 } 2006 Matrix matrix = new Matrix(); 2007 matrix.setScale(scale, scale); 2008 matrix.postTranslate((int) (dx + 0.5f), 0); 2009 2010 Canvas canvas = new Canvas(bm); 2011 canvas.drawBitmap(thumbnail, matrix, null); 2012 canvas.setBitmap(null); 2013 2014 thumbnail = bm; 2015 } 2016 if (description == null) { 2017 description = new TaskDescription(); 2018 } 2019 try { 2020 return getService().addAppTask(activity.getActivityToken(), 2021 intent, description, thumbnail); 2022 } catch (RemoteException e) { 2023 throw e.rethrowFromSystemServer(); 2024 } 2025 } 2026 2027 /** 2028 * Return a list of the tasks that are currently running, with 2029 * the most recent being first and older ones after in order. Note that 2030 * "running" does not mean any of the task's code is currently loaded or 2031 * activity -- the task may have been frozen by the system, so that it 2032 * can be restarted in its previous state when next brought to the 2033 * foreground. 2034 * 2035 * <p><b>Note: this method is only intended for debugging and presenting 2036 * task management user interfaces</b>. This should never be used for 2037 * core logic in an application, such as deciding between different 2038 * behaviors based on the information found here. Such uses are 2039 * <em>not</em> supported, and will likely break in the future. For 2040 * example, if multiple applications can be actively running at the 2041 * same time, assumptions made about the meaning of the data here for 2042 * purposes of control flow will be incorrect.</p> 2043 * 2044 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2045 * is no longer available to third party 2046 * applications: the introduction of document-centric recents means 2047 * it can leak person information to the caller. For backwards compatibility, 2048 * it will still retu rn a small subset of its data: at least the caller's 2049 * own tasks, and possibly some other tasks 2050 * such as home that are known to not be sensitive. 2051 * 2052 * @param maxNum The maximum number of entries to return in the list. The 2053 * actual number returned may be smaller, depending on how many tasks the 2054 * user has started. 2055 * 2056 * @return Returns a list of RunningTaskInfo records describing each of 2057 * the running tasks. 2058 */ 2059 @Deprecated 2060 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2061 throws SecurityException { 2062 try { 2063 return getService().getTasks(maxNum, 0); 2064 } catch (RemoteException e) { 2065 throw e.rethrowFromSystemServer(); 2066 } 2067 } 2068 2069 /** 2070 * Completely remove the given task. 2071 * 2072 * @param taskId Identifier of the task to be removed. 2073 * @return Returns true if the given task was found and removed. 2074 * 2075 * @hide 2076 */ 2077 public boolean removeTask(int taskId) throws SecurityException { 2078 try { 2079 return getService().removeTask(taskId); 2080 } catch (RemoteException e) { 2081 throw e.rethrowFromSystemServer(); 2082 } 2083 } 2084 2085 /** 2086 * Metadata related to the {@link TaskThumbnail}. 2087 * 2088 * @hide 2089 */ 2090 public static class TaskThumbnailInfo implements Parcelable { 2091 /** @hide */ 2092 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2093 private static final String ATTR_TASK_WIDTH = 2094 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2095 private static final String ATTR_TASK_HEIGHT = 2096 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2097 private static final String ATTR_SCREEN_ORIENTATION = 2098 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2099 2100 public int taskWidth; 2101 public int taskHeight; 2102 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2103 2104 public TaskThumbnailInfo() { 2105 // Do nothing 2106 } 2107 2108 private TaskThumbnailInfo(Parcel source) { 2109 readFromParcel(source); 2110 } 2111 2112 /** 2113 * Resets this info state to the initial state. 2114 * @hide 2115 */ 2116 public void reset() { 2117 taskWidth = 0; 2118 taskHeight = 0; 2119 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2120 } 2121 2122 /** 2123 * Copies from another ThumbnailInfo. 2124 */ 2125 public void copyFrom(TaskThumbnailInfo o) { 2126 taskWidth = o.taskWidth; 2127 taskHeight = o.taskHeight; 2128 screenOrientation = o.screenOrientation; 2129 } 2130 2131 /** @hide */ 2132 public void saveToXml(XmlSerializer out) throws IOException { 2133 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2134 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2135 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2136 } 2137 2138 /** @hide */ 2139 public void restoreFromXml(String attrName, String attrValue) { 2140 if (ATTR_TASK_WIDTH.equals(attrName)) { 2141 taskWidth = Integer.parseInt(attrValue); 2142 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2143 taskHeight = Integer.parseInt(attrValue); 2144 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2145 screenOrientation = Integer.parseInt(attrValue); 2146 } 2147 } 2148 2149 public int describeContents() { 2150 return 0; 2151 } 2152 2153 public void writeToParcel(Parcel dest, int flags) { 2154 dest.writeInt(taskWidth); 2155 dest.writeInt(taskHeight); 2156 dest.writeInt(screenOrientation); 2157 } 2158 2159 public void readFromParcel(Parcel source) { 2160 taskWidth = source.readInt(); 2161 taskHeight = source.readInt(); 2162 screenOrientation = source.readInt(); 2163 } 2164 2165 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2166 public TaskThumbnailInfo createFromParcel(Parcel source) { 2167 return new TaskThumbnailInfo(source); 2168 } 2169 public TaskThumbnailInfo[] newArray(int size) { 2170 return new TaskThumbnailInfo[size]; 2171 } 2172 }; 2173 } 2174 2175 /** @hide */ 2176 public static class TaskThumbnail implements Parcelable { 2177 public Bitmap mainThumbnail; 2178 public ParcelFileDescriptor thumbnailFileDescriptor; 2179 public TaskThumbnailInfo thumbnailInfo; 2180 2181 public TaskThumbnail() { 2182 } 2183 2184 private TaskThumbnail(Parcel source) { 2185 readFromParcel(source); 2186 } 2187 2188 public int describeContents() { 2189 if (thumbnailFileDescriptor != null) { 2190 return thumbnailFileDescriptor.describeContents(); 2191 } 2192 return 0; 2193 } 2194 2195 public void writeToParcel(Parcel dest, int flags) { 2196 if (mainThumbnail != null) { 2197 dest.writeInt(1); 2198 mainThumbnail.writeToParcel(dest, flags); 2199 } else { 2200 dest.writeInt(0); 2201 } 2202 if (thumbnailFileDescriptor != null) { 2203 dest.writeInt(1); 2204 thumbnailFileDescriptor.writeToParcel(dest, flags); 2205 } else { 2206 dest.writeInt(0); 2207 } 2208 if (thumbnailInfo != null) { 2209 dest.writeInt(1); 2210 thumbnailInfo.writeToParcel(dest, flags); 2211 } else { 2212 dest.writeInt(0); 2213 } 2214 } 2215 2216 public void readFromParcel(Parcel source) { 2217 if (source.readInt() != 0) { 2218 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2219 } else { 2220 mainThumbnail = null; 2221 } 2222 if (source.readInt() != 0) { 2223 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2224 } else { 2225 thumbnailFileDescriptor = null; 2226 } 2227 if (source.readInt() != 0) { 2228 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2229 } else { 2230 thumbnailInfo = null; 2231 } 2232 } 2233 2234 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2235 public TaskThumbnail createFromParcel(Parcel source) { 2236 return new TaskThumbnail(source); 2237 } 2238 public TaskThumbnail[] newArray(int size) { 2239 return new TaskThumbnail[size]; 2240 } 2241 }; 2242 } 2243 2244 /** 2245 * Represents a task snapshot. 2246 * @hide 2247 */ 2248 public static class TaskSnapshot implements Parcelable { 2249 2250 private final GraphicBuffer mSnapshot; 2251 private final int mOrientation; 2252 private final Rect mContentInsets; 2253 private final boolean mReducedResolution; 2254 private final float mScale; 2255 2256 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2257 boolean reducedResolution, float scale) { 2258 mSnapshot = snapshot; 2259 mOrientation = orientation; 2260 mContentInsets = new Rect(contentInsets); 2261 mReducedResolution = reducedResolution; 2262 mScale = scale; 2263 } 2264 2265 private TaskSnapshot(Parcel source) { 2266 mSnapshot = source.readParcelable(null /* classLoader */); 2267 mOrientation = source.readInt(); 2268 mContentInsets = source.readParcelable(null /* classLoader */); 2269 mReducedResolution = source.readBoolean(); 2270 mScale = source.readFloat(); 2271 } 2272 2273 /** 2274 * @return The graphic buffer representing the screenshot. 2275 */ 2276 public GraphicBuffer getSnapshot() { 2277 return mSnapshot; 2278 } 2279 2280 /** 2281 * @return The screen orientation the screenshot was taken in. 2282 */ 2283 public int getOrientation() { 2284 return mOrientation; 2285 } 2286 2287 /** 2288 * @return The system/content insets on the snapshot. These can be clipped off in order to 2289 * remove any areas behind system bars in the snapshot. 2290 */ 2291 public Rect getContentInsets() { 2292 return mContentInsets; 2293 } 2294 2295 /** 2296 * @return Whether this snapshot is a down-sampled version of the full resolution. 2297 */ 2298 public boolean isReducedResolution() { 2299 return mReducedResolution; 2300 } 2301 2302 /** 2303 * @return The scale this snapshot was taken in. 2304 */ 2305 public float getScale() { 2306 return mScale; 2307 } 2308 2309 @Override 2310 public int describeContents() { 2311 return 0; 2312 } 2313 2314 @Override 2315 public void writeToParcel(Parcel dest, int flags) { 2316 dest.writeParcelable(mSnapshot, 0); 2317 dest.writeInt(mOrientation); 2318 dest.writeParcelable(mContentInsets, 0); 2319 dest.writeBoolean(mReducedResolution); 2320 dest.writeFloat(mScale); 2321 } 2322 2323 @Override 2324 public String toString() { 2325 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2326 + " mContentInsets=" + mContentInsets.toShortString() 2327 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2328 } 2329 2330 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2331 public TaskSnapshot createFromParcel(Parcel source) { 2332 return new TaskSnapshot(source); 2333 } 2334 public TaskSnapshot[] newArray(int size) { 2335 return new TaskSnapshot[size]; 2336 } 2337 }; 2338 } 2339 2340 /** @hide */ 2341 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2342 try { 2343 return getService().getTaskThumbnail(id); 2344 } catch (RemoteException e) { 2345 throw e.rethrowFromSystemServer(); 2346 } 2347 } 2348 2349 /** @hide */ 2350 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2351 MOVE_TASK_WITH_HOME, 2352 MOVE_TASK_NO_USER_ACTION, 2353 }) 2354 @Retention(RetentionPolicy.SOURCE) 2355 public @interface MoveTaskFlags {} 2356 2357 /** 2358 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2359 * activity along with the task, so it is positioned immediately behind 2360 * the task. 2361 */ 2362 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2363 2364 /** 2365 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2366 * user-instigated action, so the current activity will not receive a 2367 * hint that the user is leaving. 2368 */ 2369 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2370 2371 /** 2372 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2373 * with a null options argument. 2374 * 2375 * @param taskId The identifier of the task to be moved, as found in 2376 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2377 * @param flags Additional operational flags. 2378 */ 2379 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2380 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2381 moveTaskToFront(taskId, flags, null); 2382 } 2383 2384 /** 2385 * Ask that the task associated with a given task ID be moved to the 2386 * front of the stack, so it is now visible to the user. 2387 * 2388 * @param taskId The identifier of the task to be moved, as found in 2389 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2390 * @param flags Additional operational flags. 2391 * @param options Additional options for the operation, either null or 2392 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2393 * Context.startActivity(Intent, Bundle)}. 2394 */ 2395 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2396 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2397 try { 2398 getService().moveTaskToFront(taskId, flags, options); 2399 } catch (RemoteException e) { 2400 throw e.rethrowFromSystemServer(); 2401 } 2402 } 2403 2404 /** 2405 * Information you can retrieve about a particular Service that is 2406 * currently running in the system. 2407 */ 2408 public static class RunningServiceInfo implements Parcelable { 2409 /** 2410 * The service component. 2411 */ 2412 public ComponentName service; 2413 2414 /** 2415 * If non-zero, this is the process the service is running in. 2416 */ 2417 public int pid; 2418 2419 /** 2420 * The UID that owns this service. 2421 */ 2422 public int uid; 2423 2424 /** 2425 * The name of the process this service runs in. 2426 */ 2427 public String process; 2428 2429 /** 2430 * Set to true if the service has asked to run as a foreground process. 2431 */ 2432 public boolean foreground; 2433 2434 /** 2435 * The time when the service was first made active, either by someone 2436 * starting or binding to it. This 2437 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2438 */ 2439 public long activeSince; 2440 2441 /** 2442 * Set to true if this service has been explicitly started. 2443 */ 2444 public boolean started; 2445 2446 /** 2447 * Number of clients connected to the service. 2448 */ 2449 public int clientCount; 2450 2451 /** 2452 * Number of times the service's process has crashed while the service 2453 * is running. 2454 */ 2455 public int crashCount; 2456 2457 /** 2458 * The time when there was last activity in the service (either 2459 * explicit requests to start it or clients binding to it). This 2460 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2461 */ 2462 public long lastActivityTime; 2463 2464 /** 2465 * If non-zero, this service is not currently running, but scheduled to 2466 * restart at the given time. 2467 */ 2468 public long restarting; 2469 2470 /** 2471 * Bit for {@link #flags}: set if this service has been 2472 * explicitly started. 2473 */ 2474 public static final int FLAG_STARTED = 1<<0; 2475 2476 /** 2477 * Bit for {@link #flags}: set if the service has asked to 2478 * run as a foreground process. 2479 */ 2480 public static final int FLAG_FOREGROUND = 1<<1; 2481 2482 /** 2483 * Bit for {@link #flags}: set if the service is running in a 2484 * core system process. 2485 */ 2486 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2487 2488 /** 2489 * Bit for {@link #flags}: set if the service is running in a 2490 * persistent process. 2491 */ 2492 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2493 2494 /** 2495 * Running flags. 2496 */ 2497 public int flags; 2498 2499 /** 2500 * For special services that are bound to by system code, this is 2501 * the package that holds the binding. 2502 */ 2503 public String clientPackage; 2504 2505 /** 2506 * For special services that are bound to by system code, this is 2507 * a string resource providing a user-visible label for who the 2508 * client is. 2509 */ 2510 public int clientLabel; 2511 2512 public RunningServiceInfo() { 2513 } 2514 2515 public int describeContents() { 2516 return 0; 2517 } 2518 2519 public void writeToParcel(Parcel dest, int flags) { 2520 ComponentName.writeToParcel(service, dest); 2521 dest.writeInt(pid); 2522 dest.writeInt(uid); 2523 dest.writeString(process); 2524 dest.writeInt(foreground ? 1 : 0); 2525 dest.writeLong(activeSince); 2526 dest.writeInt(started ? 1 : 0); 2527 dest.writeInt(clientCount); 2528 dest.writeInt(crashCount); 2529 dest.writeLong(lastActivityTime); 2530 dest.writeLong(restarting); 2531 dest.writeInt(this.flags); 2532 dest.writeString(clientPackage); 2533 dest.writeInt(clientLabel); 2534 } 2535 2536 public void readFromParcel(Parcel source) { 2537 service = ComponentName.readFromParcel(source); 2538 pid = source.readInt(); 2539 uid = source.readInt(); 2540 process = source.readString(); 2541 foreground = source.readInt() != 0; 2542 activeSince = source.readLong(); 2543 started = source.readInt() != 0; 2544 clientCount = source.readInt(); 2545 crashCount = source.readInt(); 2546 lastActivityTime = source.readLong(); 2547 restarting = source.readLong(); 2548 flags = source.readInt(); 2549 clientPackage = source.readString(); 2550 clientLabel = source.readInt(); 2551 } 2552 2553 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2554 public RunningServiceInfo createFromParcel(Parcel source) { 2555 return new RunningServiceInfo(source); 2556 } 2557 public RunningServiceInfo[] newArray(int size) { 2558 return new RunningServiceInfo[size]; 2559 } 2560 }; 2561 2562 private RunningServiceInfo(Parcel source) { 2563 readFromParcel(source); 2564 } 2565 } 2566 2567 /** 2568 * Return a list of the services that are currently running. 2569 * 2570 * <p><b>Note: this method is only intended for debugging or implementing 2571 * service management type user interfaces.</b></p> 2572 * 2573 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2574 * is no longer available to third party applications. For backwards compatibility, 2575 * it will still return the caller's own services. 2576 * 2577 * @param maxNum The maximum number of entries to return in the list. The 2578 * actual number returned may be smaller, depending on how many services 2579 * are running. 2580 * 2581 * @return Returns a list of RunningServiceInfo records describing each of 2582 * the running tasks. 2583 */ 2584 @Deprecated 2585 public List<RunningServiceInfo> getRunningServices(int maxNum) 2586 throws SecurityException { 2587 try { 2588 return getService() 2589 .getServices(maxNum, 0); 2590 } catch (RemoteException e) { 2591 throw e.rethrowFromSystemServer(); 2592 } 2593 } 2594 2595 /** 2596 * Returns a PendingIntent you can start to show a control panel for the 2597 * given running service. If the service does not have a control panel, 2598 * null is returned. 2599 */ 2600 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2601 throws SecurityException { 2602 try { 2603 return getService() 2604 .getRunningServiceControlPanel(service); 2605 } catch (RemoteException e) { 2606 throw e.rethrowFromSystemServer(); 2607 } 2608 } 2609 2610 /** 2611 * Information you can retrieve about the available memory through 2612 * {@link ActivityManager#getMemoryInfo}. 2613 */ 2614 public static class MemoryInfo implements Parcelable { 2615 /** 2616 * The available memory on the system. This number should not 2617 * be considered absolute: due to the nature of the kernel, a significant 2618 * portion of this memory is actually in use and needed for the overall 2619 * system to run well. 2620 */ 2621 public long availMem; 2622 2623 /** 2624 * The total memory accessible by the kernel. This is basically the 2625 * RAM size of the device, not including below-kernel fixed allocations 2626 * like DMA buffers, RAM for the baseband CPU, etc. 2627 */ 2628 public long totalMem; 2629 2630 /** 2631 * The threshold of {@link #availMem} at which we consider memory to be 2632 * low and start killing background services and other non-extraneous 2633 * processes. 2634 */ 2635 public long threshold; 2636 2637 /** 2638 * Set to true if the system considers itself to currently be in a low 2639 * memory situation. 2640 */ 2641 public boolean lowMemory; 2642 2643 /** @hide */ 2644 public long hiddenAppThreshold; 2645 /** @hide */ 2646 public long secondaryServerThreshold; 2647 /** @hide */ 2648 public long visibleAppThreshold; 2649 /** @hide */ 2650 public long foregroundAppThreshold; 2651 2652 public MemoryInfo() { 2653 } 2654 2655 public int describeContents() { 2656 return 0; 2657 } 2658 2659 public void writeToParcel(Parcel dest, int flags) { 2660 dest.writeLong(availMem); 2661 dest.writeLong(totalMem); 2662 dest.writeLong(threshold); 2663 dest.writeInt(lowMemory ? 1 : 0); 2664 dest.writeLong(hiddenAppThreshold); 2665 dest.writeLong(secondaryServerThreshold); 2666 dest.writeLong(visibleAppThreshold); 2667 dest.writeLong(foregroundAppThreshold); 2668 } 2669 2670 public void readFromParcel(Parcel source) { 2671 availMem = source.readLong(); 2672 totalMem = source.readLong(); 2673 threshold = source.readLong(); 2674 lowMemory = source.readInt() != 0; 2675 hiddenAppThreshold = source.readLong(); 2676 secondaryServerThreshold = source.readLong(); 2677 visibleAppThreshold = source.readLong(); 2678 foregroundAppThreshold = source.readLong(); 2679 } 2680 2681 public static final Creator<MemoryInfo> CREATOR 2682 = new Creator<MemoryInfo>() { 2683 public MemoryInfo createFromParcel(Parcel source) { 2684 return new MemoryInfo(source); 2685 } 2686 public MemoryInfo[] newArray(int size) { 2687 return new MemoryInfo[size]; 2688 } 2689 }; 2690 2691 private MemoryInfo(Parcel source) { 2692 readFromParcel(source); 2693 } 2694 } 2695 2696 /** 2697 * Return general information about the memory state of the system. This 2698 * can be used to help decide how to manage your own memory, though note 2699 * that polling is not recommended and 2700 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2701 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2702 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2703 * level of your process as needed, which gives a better hint for how to 2704 * manage its memory. 2705 */ 2706 public void getMemoryInfo(MemoryInfo outInfo) { 2707 try { 2708 getService().getMemoryInfo(outInfo); 2709 } catch (RemoteException e) { 2710 throw e.rethrowFromSystemServer(); 2711 } 2712 } 2713 2714 /** 2715 * Information you can retrieve about an ActivityStack in the system. 2716 * @hide 2717 */ 2718 public static class StackInfo implements Parcelable { 2719 public int stackId; 2720 public Rect bounds = new Rect(); 2721 public int[] taskIds; 2722 public String[] taskNames; 2723 public Rect[] taskBounds; 2724 public int[] taskUserIds; 2725 public ComponentName topActivity; 2726 public int displayId; 2727 public int userId; 2728 public boolean visible; 2729 // Index of the stack in the display's stack list, can be used for comparison of stack order 2730 public int position; 2731 2732 @Override 2733 public int describeContents() { 2734 return 0; 2735 } 2736 2737 @Override 2738 public void writeToParcel(Parcel dest, int flags) { 2739 dest.writeInt(stackId); 2740 dest.writeInt(bounds.left); 2741 dest.writeInt(bounds.top); 2742 dest.writeInt(bounds.right); 2743 dest.writeInt(bounds.bottom); 2744 dest.writeIntArray(taskIds); 2745 dest.writeStringArray(taskNames); 2746 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2747 dest.writeInt(boundsCount); 2748 for (int i = 0; i < boundsCount; i++) { 2749 dest.writeInt(taskBounds[i].left); 2750 dest.writeInt(taskBounds[i].top); 2751 dest.writeInt(taskBounds[i].right); 2752 dest.writeInt(taskBounds[i].bottom); 2753 } 2754 dest.writeIntArray(taskUserIds); 2755 dest.writeInt(displayId); 2756 dest.writeInt(userId); 2757 dest.writeInt(visible ? 1 : 0); 2758 dest.writeInt(position); 2759 if (topActivity != null) { 2760 dest.writeInt(1); 2761 topActivity.writeToParcel(dest, 0); 2762 } else { 2763 dest.writeInt(0); 2764 } 2765 } 2766 2767 public void readFromParcel(Parcel source) { 2768 stackId = source.readInt(); 2769 bounds = new Rect( 2770 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2771 taskIds = source.createIntArray(); 2772 taskNames = source.createStringArray(); 2773 final int boundsCount = source.readInt(); 2774 if (boundsCount > 0) { 2775 taskBounds = new Rect[boundsCount]; 2776 for (int i = 0; i < boundsCount; i++) { 2777 taskBounds[i] = new Rect(); 2778 taskBounds[i].set( 2779 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2780 } 2781 } else { 2782 taskBounds = null; 2783 } 2784 taskUserIds = source.createIntArray(); 2785 displayId = source.readInt(); 2786 userId = source.readInt(); 2787 visible = source.readInt() > 0; 2788 position = source.readInt(); 2789 if (source.readInt() > 0) { 2790 topActivity = ComponentName.readFromParcel(source); 2791 } 2792 } 2793 2794 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2795 @Override 2796 public StackInfo createFromParcel(Parcel source) { 2797 return new StackInfo(source); 2798 } 2799 @Override 2800 public StackInfo[] newArray(int size) { 2801 return new StackInfo[size]; 2802 } 2803 }; 2804 2805 public StackInfo() { 2806 } 2807 2808 private StackInfo(Parcel source) { 2809 readFromParcel(source); 2810 } 2811 2812 public String toString(String prefix) { 2813 StringBuilder sb = new StringBuilder(256); 2814 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2815 sb.append(" bounds="); sb.append(bounds.toShortString()); 2816 sb.append(" displayId="); sb.append(displayId); 2817 sb.append(" userId="); sb.append(userId); 2818 sb.append("\n"); 2819 prefix = prefix + " "; 2820 for (int i = 0; i < taskIds.length; ++i) { 2821 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2822 sb.append(": "); sb.append(taskNames[i]); 2823 if (taskBounds != null) { 2824 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2825 } 2826 sb.append(" userId=").append(taskUserIds[i]); 2827 sb.append(" visible=").append(visible); 2828 if (topActivity != null) { 2829 sb.append(" topActivity=").append(topActivity); 2830 } 2831 sb.append("\n"); 2832 } 2833 return sb.toString(); 2834 } 2835 2836 @Override 2837 public String toString() { 2838 return toString(""); 2839 } 2840 } 2841 2842 /** 2843 * @hide 2844 */ 2845 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2846 try { 2847 return getService().clearApplicationUserData(packageName, 2848 observer, UserHandle.myUserId()); 2849 } catch (RemoteException e) { 2850 throw e.rethrowFromSystemServer(); 2851 } 2852 } 2853 2854 /** 2855 * Permits an application to erase its own data from disk. This is equivalent to 2856 * the user choosing to clear the app's data from within the device settings UI. It 2857 * erases all dynamic data associated with the app -- its private data and data in its 2858 * private area on external storage -- but does not remove the installed application 2859 * itself, nor any OBB files. 2860 * 2861 * @return {@code true} if the application successfully requested that the application's 2862 * data be erased; {@code false} otherwise. 2863 */ 2864 public boolean clearApplicationUserData() { 2865 return clearApplicationUserData(mContext.getPackageName(), null); 2866 } 2867 2868 2869 /** 2870 * Permits an application to get the persistent URI permissions granted to another. 2871 * 2872 * <p>Typically called by Settings. 2873 * 2874 * @param packageName application to look for the granted permissions 2875 * @return list of granted URI permissions 2876 * 2877 * @hide 2878 */ 2879 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2880 try { 2881 return getService().getGrantedUriPermissions(packageName, 2882 UserHandle.myUserId()); 2883 } catch (RemoteException e) { 2884 throw e.rethrowFromSystemServer(); 2885 } 2886 } 2887 2888 /** 2889 * Permits an application to clear the persistent URI permissions granted to another. 2890 * 2891 * <p>Typically called by Settings. 2892 * 2893 * @param packageName application to clear its granted permissions 2894 * 2895 * @hide 2896 */ 2897 public void clearGrantedUriPermissions(String packageName) { 2898 try { 2899 getService().clearGrantedUriPermissions(packageName, 2900 UserHandle.myUserId()); 2901 } catch (RemoteException e) { 2902 throw e.rethrowFromSystemServer(); 2903 } 2904 } 2905 2906 /** 2907 * Information you can retrieve about any processes that are in an error condition. 2908 */ 2909 public static class ProcessErrorStateInfo implements Parcelable { 2910 /** 2911 * Condition codes 2912 */ 2913 public static final int NO_ERROR = 0; 2914 public static final int CRASHED = 1; 2915 public static final int NOT_RESPONDING = 2; 2916 2917 /** 2918 * The condition that the process is in. 2919 */ 2920 public int condition; 2921 2922 /** 2923 * The process name in which the crash or error occurred. 2924 */ 2925 public String processName; 2926 2927 /** 2928 * The pid of this process; 0 if none 2929 */ 2930 public int pid; 2931 2932 /** 2933 * The kernel user-ID that has been assigned to this process; 2934 * currently this is not a unique ID (multiple applications can have 2935 * the same uid). 2936 */ 2937 public int uid; 2938 2939 /** 2940 * The activity name associated with the error, if known. May be null. 2941 */ 2942 public String tag; 2943 2944 /** 2945 * A short message describing the error condition. 2946 */ 2947 public String shortMsg; 2948 2949 /** 2950 * A long message describing the error condition. 2951 */ 2952 public String longMsg; 2953 2954 /** 2955 * The stack trace where the error originated. May be null. 2956 */ 2957 public String stackTrace; 2958 2959 /** 2960 * to be deprecated: This value will always be null. 2961 */ 2962 public byte[] crashData = null; 2963 2964 public ProcessErrorStateInfo() { 2965 } 2966 2967 @Override 2968 public int describeContents() { 2969 return 0; 2970 } 2971 2972 @Override 2973 public void writeToParcel(Parcel dest, int flags) { 2974 dest.writeInt(condition); 2975 dest.writeString(processName); 2976 dest.writeInt(pid); 2977 dest.writeInt(uid); 2978 dest.writeString(tag); 2979 dest.writeString(shortMsg); 2980 dest.writeString(longMsg); 2981 dest.writeString(stackTrace); 2982 } 2983 2984 public void readFromParcel(Parcel source) { 2985 condition = source.readInt(); 2986 processName = source.readString(); 2987 pid = source.readInt(); 2988 uid = source.readInt(); 2989 tag = source.readString(); 2990 shortMsg = source.readString(); 2991 longMsg = source.readString(); 2992 stackTrace = source.readString(); 2993 } 2994 2995 public static final Creator<ProcessErrorStateInfo> CREATOR = 2996 new Creator<ProcessErrorStateInfo>() { 2997 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2998 return new ProcessErrorStateInfo(source); 2999 } 3000 public ProcessErrorStateInfo[] newArray(int size) { 3001 return new ProcessErrorStateInfo[size]; 3002 } 3003 }; 3004 3005 private ProcessErrorStateInfo(Parcel source) { 3006 readFromParcel(source); 3007 } 3008 } 3009 3010 /** 3011 * Returns a list of any processes that are currently in an error condition. The result 3012 * will be null if all processes are running properly at this time. 3013 * 3014 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3015 * current error conditions (it will not return an empty list). This list ordering is not 3016 * specified. 3017 */ 3018 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3019 try { 3020 return getService().getProcessesInErrorState(); 3021 } catch (RemoteException e) { 3022 throw e.rethrowFromSystemServer(); 3023 } 3024 } 3025 3026 /** 3027 * Information you can retrieve about a running process. 3028 */ 3029 public static class RunningAppProcessInfo implements Parcelable { 3030 /** 3031 * The name of the process that this object is associated with 3032 */ 3033 public String processName; 3034 3035 /** 3036 * The pid of this process; 0 if none 3037 */ 3038 public int pid; 3039 3040 /** 3041 * The user id of this process. 3042 */ 3043 public int uid; 3044 3045 /** 3046 * All packages that have been loaded into the process. 3047 */ 3048 public String pkgList[]; 3049 3050 /** 3051 * Constant for {@link #flags}: this is an app that is unable to 3052 * correctly save its state when going to the background, 3053 * so it can not be killed while in the background. 3054 * @hide 3055 */ 3056 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3057 3058 /** 3059 * Constant for {@link #flags}: this process is associated with a 3060 * persistent system app. 3061 * @hide 3062 */ 3063 public static final int FLAG_PERSISTENT = 1<<1; 3064 3065 /** 3066 * Constant for {@link #flags}: this process is associated with a 3067 * persistent system app. 3068 * @hide 3069 */ 3070 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3071 3072 /** 3073 * Flags of information. May be any of 3074 * {@link #FLAG_CANT_SAVE_STATE}. 3075 * @hide 3076 */ 3077 public int flags; 3078 3079 /** 3080 * Last memory trim level reported to the process: corresponds to 3081 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3082 * ComponentCallbacks2.onTrimMemory(int)}. 3083 */ 3084 public int lastTrimLevel; 3085 3086 /** @hide */ 3087 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3088 IMPORTANCE_FOREGROUND, 3089 IMPORTANCE_FOREGROUND_SERVICE, 3090 IMPORTANCE_TOP_SLEEPING, 3091 IMPORTANCE_VISIBLE, 3092 IMPORTANCE_PERCEPTIBLE, 3093 IMPORTANCE_CANT_SAVE_STATE, 3094 IMPORTANCE_SERVICE, 3095 IMPORTANCE_CACHED, 3096 IMPORTANCE_GONE, 3097 }) 3098 @Retention(RetentionPolicy.SOURCE) 3099 public @interface Importance {} 3100 3101 /** 3102 * Constant for {@link #importance}: This process is running the 3103 * foreground UI; that is, it is the thing currently at the top of the screen 3104 * that the user is interacting with. 3105 */ 3106 public static final int IMPORTANCE_FOREGROUND = 100; 3107 3108 /** 3109 * Constant for {@link #importance}: This process is running a foreground 3110 * service, for example to perform music playback even while the user is 3111 * not immediately in the app. This generally indicates that the process 3112 * is doing something the user actively cares about. 3113 */ 3114 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3115 3116 /** 3117 * Constant for {@link #importance}: This process is running the foreground 3118 * UI, but the device is asleep so it is not visible to the user. This means 3119 * the user is not really aware of the process, because they can not see or 3120 * interact with it, but it is quite important because it what they expect to 3121 * return to once unlocking the device. 3122 */ 3123 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3124 3125 /** 3126 * Constant for {@link #importance}: This process is running something 3127 * that is actively visible to the user, though not in the immediate 3128 * foreground. This may be running a window that is behind the current 3129 * foreground (so paused and with its state saved, not interacting with 3130 * the user, but visible to them to some degree); it may also be running 3131 * other services under the system's control that it inconsiders important. 3132 */ 3133 public static final int IMPORTANCE_VISIBLE = 200; 3134 3135 /** 3136 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3137 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3138 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3139 * 3140 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3141 * on Android versions below {@link Build.VERSION_CODES#O}. 3142 * 3143 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3144 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3145 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3146 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3147 */ 3148 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3149 3150 /** 3151 * Constant for {@link #importance}: This process is not something the user 3152 * is directly aware of, but is otherwise perceptible to them to some degree. 3153 */ 3154 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3155 3156 /** 3157 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3158 * this wrong value 3159 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3160 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3161 * 3162 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3163 * on Android versions below {@link Build.VERSION_CODES#O}. 3164 * 3165 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3166 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3167 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3168 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3169 * 3170 * @hide 3171 */ 3172 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3173 3174 /** 3175 * Constant for {@link #importance}: This process is running an 3176 * application that can not save its state, and thus can't be killed 3177 * while in the background. 3178 * @hide 3179 */ 3180 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3181 3182 /** 3183 * Constant for {@link #importance}: This process is contains services 3184 * that should remain running. These are background services apps have 3185 * started, not something the user is aware of, so they may be killed by 3186 * the system relatively freely (though it is generally desired that they 3187 * stay running as long as they want to). 3188 */ 3189 public static final int IMPORTANCE_SERVICE = 300; 3190 3191 /** 3192 * Constant for {@link #importance}: This process process contains 3193 * cached code that is expendable, not actively running any app components 3194 * we care about. 3195 */ 3196 public static final int IMPORTANCE_CACHED = 400; 3197 3198 /** 3199 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3200 */ 3201 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3202 3203 /** 3204 * Constant for {@link #importance}: This process is empty of any 3205 * actively running code. 3206 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3207 */ 3208 @Deprecated 3209 public static final int IMPORTANCE_EMPTY = 500; 3210 3211 /** 3212 * Constant for {@link #importance}: This process does not exist. 3213 */ 3214 public static final int IMPORTANCE_GONE = 1000; 3215 3216 /** 3217 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3218 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3219 * @hide 3220 */ 3221 public static @Importance int procStateToImportance(int procState) { 3222 if (procState == PROCESS_STATE_NONEXISTENT) { 3223 return IMPORTANCE_GONE; 3224 } else if (procState >= PROCESS_STATE_HOME) { 3225 return IMPORTANCE_CACHED; 3226 } else if (procState >= PROCESS_STATE_SERVICE) { 3227 return IMPORTANCE_SERVICE; 3228 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3229 return IMPORTANCE_CANT_SAVE_STATE; 3230 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3231 return IMPORTANCE_PERCEPTIBLE; 3232 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3233 return IMPORTANCE_VISIBLE; 3234 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3235 return IMPORTANCE_TOP_SLEEPING; 3236 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3237 return IMPORTANCE_FOREGROUND_SERVICE; 3238 } else { 3239 return IMPORTANCE_FOREGROUND; 3240 } 3241 } 3242 3243 /** 3244 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3245 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3246 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3247 * client's target SDK < {@link VERSION_CODES#O}. 3248 * @hide 3249 */ 3250 public static @Importance int procStateToImportanceForClient(int procState, 3251 Context clientContext) { 3252 return procStateToImportanceForTargetSdk(procState, 3253 clientContext.getApplicationInfo().targetSdkVersion); 3254 } 3255 3256 /** 3257 * See {@link #procStateToImportanceForClient}. 3258 * @hide 3259 */ 3260 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3261 int targetSdkVersion) { 3262 final int importance = procStateToImportance(procState); 3263 3264 // For pre O apps, convert to the old, wrong values. 3265 if (targetSdkVersion < VERSION_CODES.O) { 3266 switch (importance) { 3267 case IMPORTANCE_PERCEPTIBLE: 3268 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3269 case IMPORTANCE_CANT_SAVE_STATE: 3270 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3271 } 3272 } 3273 return importance; 3274 } 3275 3276 /** @hide */ 3277 public static int importanceToProcState(@Importance int importance) { 3278 if (importance == IMPORTANCE_GONE) { 3279 return PROCESS_STATE_NONEXISTENT; 3280 } else if (importance >= IMPORTANCE_CACHED) { 3281 return PROCESS_STATE_HOME; 3282 } else if (importance >= IMPORTANCE_SERVICE) { 3283 return PROCESS_STATE_SERVICE; 3284 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3285 return PROCESS_STATE_HEAVY_WEIGHT; 3286 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3287 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3288 } else if (importance >= IMPORTANCE_VISIBLE) { 3289 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3290 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3291 return PROCESS_STATE_TOP_SLEEPING; 3292 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3293 return PROCESS_STATE_FOREGROUND_SERVICE; 3294 } else { 3295 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3296 } 3297 } 3298 3299 /** 3300 * The relative importance level that the system places on this process. 3301 * These constants are numbered so that "more important" values are 3302 * always smaller than "less important" values. 3303 */ 3304 public @Importance int importance; 3305 3306 /** 3307 * An additional ordering within a particular {@link #importance} 3308 * category, providing finer-grained information about the relative 3309 * utility of processes within a category. This number means nothing 3310 * except that a smaller values are more recently used (and thus 3311 * more important). Currently an LRU value is only maintained for 3312 * the {@link #IMPORTANCE_CACHED} category, though others may 3313 * be maintained in the future. 3314 */ 3315 public int lru; 3316 3317 /** 3318 * Constant for {@link #importanceReasonCode}: nothing special has 3319 * been specified for the reason for this level. 3320 */ 3321 public static final int REASON_UNKNOWN = 0; 3322 3323 /** 3324 * Constant for {@link #importanceReasonCode}: one of the application's 3325 * content providers is being used by another process. The pid of 3326 * the client process is in {@link #importanceReasonPid} and the 3327 * target provider in this process is in 3328 * {@link #importanceReasonComponent}. 3329 */ 3330 public static final int REASON_PROVIDER_IN_USE = 1; 3331 3332 /** 3333 * Constant for {@link #importanceReasonCode}: one of the application's 3334 * content providers is being used by another process. The pid of 3335 * the client process is in {@link #importanceReasonPid} and the 3336 * target provider in this process is in 3337 * {@link #importanceReasonComponent}. 3338 */ 3339 public static final int REASON_SERVICE_IN_USE = 2; 3340 3341 /** 3342 * The reason for {@link #importance}, if any. 3343 */ 3344 public int importanceReasonCode; 3345 3346 /** 3347 * For the specified values of {@link #importanceReasonCode}, this 3348 * is the process ID of the other process that is a client of this 3349 * process. This will be 0 if no other process is using this one. 3350 */ 3351 public int importanceReasonPid; 3352 3353 /** 3354 * For the specified values of {@link #importanceReasonCode}, this 3355 * is the name of the component that is being used in this process. 3356 */ 3357 public ComponentName importanceReasonComponent; 3358 3359 /** 3360 * When {@link #importanceReasonPid} is non-0, this is the importance 3361 * of the other pid. @hide 3362 */ 3363 public int importanceReasonImportance; 3364 3365 /** 3366 * Current process state, as per PROCESS_STATE_* constants. 3367 * @hide 3368 */ 3369 public int processState; 3370 3371 public RunningAppProcessInfo() { 3372 importance = IMPORTANCE_FOREGROUND; 3373 importanceReasonCode = REASON_UNKNOWN; 3374 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3375 } 3376 3377 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3378 processName = pProcessName; 3379 pid = pPid; 3380 pkgList = pArr; 3381 } 3382 3383 public int describeContents() { 3384 return 0; 3385 } 3386 3387 public void writeToParcel(Parcel dest, int flags) { 3388 dest.writeString(processName); 3389 dest.writeInt(pid); 3390 dest.writeInt(uid); 3391 dest.writeStringArray(pkgList); 3392 dest.writeInt(this.flags); 3393 dest.writeInt(lastTrimLevel); 3394 dest.writeInt(importance); 3395 dest.writeInt(lru); 3396 dest.writeInt(importanceReasonCode); 3397 dest.writeInt(importanceReasonPid); 3398 ComponentName.writeToParcel(importanceReasonComponent, dest); 3399 dest.writeInt(importanceReasonImportance); 3400 dest.writeInt(processState); 3401 } 3402 3403 public void readFromParcel(Parcel source) { 3404 processName = source.readString(); 3405 pid = source.readInt(); 3406 uid = source.readInt(); 3407 pkgList = source.readStringArray(); 3408 flags = source.readInt(); 3409 lastTrimLevel = source.readInt(); 3410 importance = source.readInt(); 3411 lru = source.readInt(); 3412 importanceReasonCode = source.readInt(); 3413 importanceReasonPid = source.readInt(); 3414 importanceReasonComponent = ComponentName.readFromParcel(source); 3415 importanceReasonImportance = source.readInt(); 3416 processState = source.readInt(); 3417 } 3418 3419 public static final Creator<RunningAppProcessInfo> CREATOR = 3420 new Creator<RunningAppProcessInfo>() { 3421 public RunningAppProcessInfo createFromParcel(Parcel source) { 3422 return new RunningAppProcessInfo(source); 3423 } 3424 public RunningAppProcessInfo[] newArray(int size) { 3425 return new RunningAppProcessInfo[size]; 3426 } 3427 }; 3428 3429 private RunningAppProcessInfo(Parcel source) { 3430 readFromParcel(source); 3431 } 3432 } 3433 3434 /** 3435 * Returns a list of application processes installed on external media 3436 * that are running on the device. 3437 * 3438 * <p><b>Note: this method is only intended for debugging or building 3439 * a user-facing process management UI.</b></p> 3440 * 3441 * @return Returns a list of ApplicationInfo records, or null if none 3442 * This list ordering is not specified. 3443 * @hide 3444 */ 3445 public List<ApplicationInfo> getRunningExternalApplications() { 3446 try { 3447 return getService().getRunningExternalApplications(); 3448 } catch (RemoteException e) { 3449 throw e.rethrowFromSystemServer(); 3450 } 3451 } 3452 3453 /** 3454 * Sets the memory trim mode for a process and schedules a memory trim operation. 3455 * 3456 * <p><b>Note: this method is only intended for testing framework.</b></p> 3457 * 3458 * @return Returns true if successful. 3459 * @hide 3460 */ 3461 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3462 try { 3463 return getService().setProcessMemoryTrimLevel(process, userId, 3464 level); 3465 } catch (RemoteException e) { 3466 throw e.rethrowFromSystemServer(); 3467 } 3468 } 3469 3470 /** 3471 * Returns a list of application processes that are running on the device. 3472 * 3473 * <p><b>Note: this method is only intended for debugging or building 3474 * a user-facing process management UI.</b></p> 3475 * 3476 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3477 * running processes (it will not return an empty list). This list ordering is not 3478 * specified. 3479 */ 3480 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3481 try { 3482 return getService().getRunningAppProcesses(); 3483 } catch (RemoteException e) { 3484 throw e.rethrowFromSystemServer(); 3485 } 3486 } 3487 3488 /** 3489 * Return the importance of a given package name, based on the processes that are 3490 * currently running. The return value is one of the importance constants defined 3491 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3492 * processes that this package has code running inside of. If there are no processes 3493 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3494 * @hide 3495 */ 3496 @SystemApi @TestApi 3497 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3498 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3499 try { 3500 int procState = getService().getPackageProcessState(packageName, 3501 mContext.getOpPackageName()); 3502 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3503 } catch (RemoteException e) { 3504 throw e.rethrowFromSystemServer(); 3505 } 3506 } 3507 3508 /** 3509 * Return the importance of a given uid, based on the processes that are 3510 * currently running. The return value is one of the importance constants defined 3511 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3512 * processes that this uid has running. If there are no processes 3513 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3514 * @hide 3515 */ 3516 @SystemApi @TestApi 3517 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3518 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3519 try { 3520 int procState = getService().getUidProcessState(uid, 3521 mContext.getOpPackageName()); 3522 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3523 } catch (RemoteException e) { 3524 throw e.rethrowFromSystemServer(); 3525 } 3526 } 3527 3528 /** 3529 * Callback to get reports about changes to the importance of a uid. Use with 3530 * {@link #addOnUidImportanceListener}. 3531 * @hide 3532 */ 3533 @SystemApi @TestApi 3534 public interface OnUidImportanceListener { 3535 /** 3536 * The importance if a given uid has changed. Will be one of the importance 3537 * values in {@link RunningAppProcessInfo}; 3538 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3539 * when the uid is no longer running at all. This callback will happen on a thread 3540 * from a thread pool, not the main UI thread. 3541 * @param uid The uid whose importance has changed. 3542 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3543 */ 3544 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3545 } 3546 3547 /** 3548 * Start monitoring changes to the imoportance of uids running in the system. 3549 * @param listener The listener callback that will receive change reports. 3550 * @param importanceCutpoint The level of importance in which the caller is interested 3551 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3552 * is used here, you will receive a call each time a uids importance transitions between 3553 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3554 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3555 * 3556 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3557 * permission to use this feature.</p> 3558 * 3559 * @throws IllegalArgumentException If the listener is already registered. 3560 * @throws SecurityException If the caller does not hold 3561 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3562 * @hide 3563 */ 3564 @SystemApi @TestApi 3565 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3566 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3567 synchronized (this) { 3568 if (mImportanceListeners.containsKey(listener)) { 3569 throw new IllegalArgumentException("Listener already registered: " + listener); 3570 } 3571 // TODO: implement the cut point in the system process to avoid IPCs. 3572 UidObserver observer = new UidObserver(listener, mContext); 3573 try { 3574 getService().registerUidObserver(observer, 3575 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3576 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3577 mContext.getOpPackageName()); 3578 } catch (RemoteException e) { 3579 throw e.rethrowFromSystemServer(); 3580 } 3581 mImportanceListeners.put(listener, observer); 3582 } 3583 } 3584 3585 /** 3586 * Remove an importance listener that was previously registered with 3587 * {@link #addOnUidImportanceListener}. 3588 * 3589 * @throws IllegalArgumentException If the listener is not registered. 3590 * @hide 3591 */ 3592 @SystemApi @TestApi 3593 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3594 synchronized (this) { 3595 UidObserver observer = mImportanceListeners.remove(listener); 3596 if (observer == null) { 3597 throw new IllegalArgumentException("Listener not registered: " + listener); 3598 } 3599 try { 3600 getService().unregisterUidObserver(observer); 3601 } catch (RemoteException e) { 3602 throw e.rethrowFromSystemServer(); 3603 } 3604 } 3605 } 3606 3607 /** 3608 * Return global memory state information for the calling process. This 3609 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3610 * only fields that will be filled in are 3611 * {@link RunningAppProcessInfo#pid}, 3612 * {@link RunningAppProcessInfo#uid}, 3613 * {@link RunningAppProcessInfo#lastTrimLevel}, 3614 * {@link RunningAppProcessInfo#importance}, 3615 * {@link RunningAppProcessInfo#lru}, and 3616 * {@link RunningAppProcessInfo#importanceReasonCode}. 3617 */ 3618 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3619 try { 3620 getService().getMyMemoryState(outState); 3621 } catch (RemoteException e) { 3622 throw e.rethrowFromSystemServer(); 3623 } 3624 } 3625 3626 /** 3627 * Return information about the memory usage of one or more processes. 3628 * 3629 * <p><b>Note: this method is only intended for debugging or building 3630 * a user-facing process management UI.</b></p> 3631 * 3632 * @param pids The pids of the processes whose memory usage is to be 3633 * retrieved. 3634 * @return Returns an array of memory information, one for each 3635 * requested pid. 3636 */ 3637 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3638 try { 3639 return getService().getProcessMemoryInfo(pids); 3640 } catch (RemoteException e) { 3641 throw e.rethrowFromSystemServer(); 3642 } 3643 } 3644 3645 /** 3646 * @deprecated This is now just a wrapper for 3647 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3648 * is no longer available to applications because it allows them to 3649 * break other applications by removing their alarms, stopping their 3650 * services, etc. 3651 */ 3652 @Deprecated 3653 public void restartPackage(String packageName) { 3654 killBackgroundProcesses(packageName); 3655 } 3656 3657 /** 3658 * Have the system immediately kill all background processes associated 3659 * with the given package. This is the same as the kernel killing those 3660 * processes to reclaim memory; the system will take care of restarting 3661 * these processes in the future as needed. 3662 * 3663 * @param packageName The name of the package whose processes are to 3664 * be killed. 3665 */ 3666 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3667 public void killBackgroundProcesses(String packageName) { 3668 try { 3669 getService().killBackgroundProcesses(packageName, 3670 UserHandle.myUserId()); 3671 } catch (RemoteException e) { 3672 throw e.rethrowFromSystemServer(); 3673 } 3674 } 3675 3676 /** 3677 * Kills the specified UID. 3678 * @param uid The UID to kill. 3679 * @param reason The reason for the kill. 3680 * 3681 * @hide 3682 */ 3683 @SystemApi 3684 @RequiresPermission(Manifest.permission.KILL_UID) 3685 public void killUid(int uid, String reason) { 3686 try { 3687 getService().killUid(UserHandle.getAppId(uid), 3688 UserHandle.getUserId(uid), reason); 3689 } catch (RemoteException e) { 3690 throw e.rethrowFromSystemServer(); 3691 } 3692 } 3693 3694 /** 3695 * Have the system perform a force stop of everything associated with 3696 * the given application package. All processes that share its uid 3697 * will be killed, all services it has running stopped, all activities 3698 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3699 * broadcast will be sent, so that any of its registered alarms can 3700 * be stopped, notifications removed, etc. 3701 * 3702 * <p>You must hold the permission 3703 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3704 * call this method. 3705 * 3706 * @param packageName The name of the package to be stopped. 3707 * @param userId The user for which the running package is to be stopped. 3708 * 3709 * @hide This is not available to third party applications due to 3710 * it allowing them to break other applications by stopping their 3711 * services, removing their alarms, etc. 3712 */ 3713 public void forceStopPackageAsUser(String packageName, int userId) { 3714 try { 3715 getService().forceStopPackage(packageName, userId); 3716 } catch (RemoteException e) { 3717 throw e.rethrowFromSystemServer(); 3718 } 3719 } 3720 3721 /** 3722 * @see #forceStopPackageAsUser(String, int) 3723 * @hide 3724 */ 3725 @SystemApi 3726 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3727 public void forceStopPackage(String packageName) { 3728 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3729 } 3730 3731 /** 3732 * Get the device configuration attributes. 3733 */ 3734 public ConfigurationInfo getDeviceConfigurationInfo() { 3735 try { 3736 return getService().getDeviceConfigurationInfo(); 3737 } catch (RemoteException e) { 3738 throw e.rethrowFromSystemServer(); 3739 } 3740 } 3741 3742 /** 3743 * Get the preferred density of icons for the launcher. This is used when 3744 * custom drawables are created (e.g., for shortcuts). 3745 * 3746 * @return density in terms of DPI 3747 */ 3748 public int getLauncherLargeIconDensity() { 3749 final Resources res = mContext.getResources(); 3750 final int density = res.getDisplayMetrics().densityDpi; 3751 final int sw = res.getConfiguration().smallestScreenWidthDp; 3752 3753 if (sw < 600) { 3754 // Smaller than approx 7" tablets, use the regular icon size. 3755 return density; 3756 } 3757 3758 switch (density) { 3759 case DisplayMetrics.DENSITY_LOW: 3760 return DisplayMetrics.DENSITY_MEDIUM; 3761 case DisplayMetrics.DENSITY_MEDIUM: 3762 return DisplayMetrics.DENSITY_HIGH; 3763 case DisplayMetrics.DENSITY_TV: 3764 return DisplayMetrics.DENSITY_XHIGH; 3765 case DisplayMetrics.DENSITY_HIGH: 3766 return DisplayMetrics.DENSITY_XHIGH; 3767 case DisplayMetrics.DENSITY_XHIGH: 3768 return DisplayMetrics.DENSITY_XXHIGH; 3769 case DisplayMetrics.DENSITY_XXHIGH: 3770 return DisplayMetrics.DENSITY_XHIGH * 2; 3771 default: 3772 // The density is some abnormal value. Return some other 3773 // abnormal value that is a reasonable scaling of it. 3774 return (int)((density*1.5f)+.5f); 3775 } 3776 } 3777 3778 /** 3779 * Get the preferred launcher icon size. This is used when custom drawables 3780 * are created (e.g., for shortcuts). 3781 * 3782 * @return dimensions of square icons in terms of pixels 3783 */ 3784 public int getLauncherLargeIconSize() { 3785 return getLauncherLargeIconSizeInner(mContext); 3786 } 3787 3788 static int getLauncherLargeIconSizeInner(Context context) { 3789 final Resources res = context.getResources(); 3790 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3791 final int sw = res.getConfiguration().smallestScreenWidthDp; 3792 3793 if (sw < 600) { 3794 // Smaller than approx 7" tablets, use the regular icon size. 3795 return size; 3796 } 3797 3798 final int density = res.getDisplayMetrics().densityDpi; 3799 3800 switch (density) { 3801 case DisplayMetrics.DENSITY_LOW: 3802 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3803 case DisplayMetrics.DENSITY_MEDIUM: 3804 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3805 case DisplayMetrics.DENSITY_TV: 3806 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3807 case DisplayMetrics.DENSITY_HIGH: 3808 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3809 case DisplayMetrics.DENSITY_XHIGH: 3810 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3811 case DisplayMetrics.DENSITY_XXHIGH: 3812 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3813 default: 3814 // The density is some abnormal value. Return some other 3815 // abnormal value that is a reasonable scaling of it. 3816 return (int)((size*1.5f) + .5f); 3817 } 3818 } 3819 3820 /** 3821 * Returns "true" if the user interface is currently being messed with 3822 * by a monkey. 3823 */ 3824 public static boolean isUserAMonkey() { 3825 try { 3826 return getService().isUserAMonkey(); 3827 } catch (RemoteException e) { 3828 throw e.rethrowFromSystemServer(); 3829 } 3830 } 3831 3832 /** 3833 * Returns "true" if device is running in a test harness. 3834 */ 3835 public static boolean isRunningInTestHarness() { 3836 return SystemProperties.getBoolean("ro.test_harness", false); 3837 } 3838 3839 /** 3840 * Returns the launch count of each installed package. 3841 * 3842 * @hide 3843 */ 3844 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3845 try { 3846 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3847 ServiceManager.getService("usagestats")); 3848 if (usageStatsService == null) { 3849 return new HashMap<String, Integer>(); 3850 } 3851 3852 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3853 ActivityThread.currentPackageName()); 3854 if (allPkgUsageStats == null) { 3855 return new HashMap<String, Integer>(); 3856 } 3857 3858 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3859 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3860 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3861 } 3862 3863 return launchCounts; 3864 } catch (RemoteException e) { 3865 Log.w(TAG, "Could not query launch counts", e); 3866 return new HashMap<String, Integer>(); 3867 } 3868 }*/ 3869 3870 /** @hide */ 3871 public static int checkComponentPermission(String permission, int uid, 3872 int owningUid, boolean exported) { 3873 // Root, system server get to do everything. 3874 final int appId = UserHandle.getAppId(uid); 3875 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3876 return PackageManager.PERMISSION_GRANTED; 3877 } 3878 // Isolated processes don't get any permissions. 3879 if (UserHandle.isIsolated(uid)) { 3880 return PackageManager.PERMISSION_DENIED; 3881 } 3882 // If there is a uid that owns whatever is being accessed, it has 3883 // blanket access to it regardless of the permissions it requires. 3884 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3885 return PackageManager.PERMISSION_GRANTED; 3886 } 3887 // If the target is not exported, then nobody else can get to it. 3888 if (!exported) { 3889 /* 3890 RuntimeException here = new RuntimeException("here"); 3891 here.fillInStackTrace(); 3892 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3893 here); 3894 */ 3895 return PackageManager.PERMISSION_DENIED; 3896 } 3897 if (permission == null) { 3898 return PackageManager.PERMISSION_GRANTED; 3899 } 3900 try { 3901 return AppGlobals.getPackageManager() 3902 .checkUidPermission(permission, uid); 3903 } catch (RemoteException e) { 3904 throw e.rethrowFromSystemServer(); 3905 } 3906 } 3907 3908 /** @hide */ 3909 public static int checkUidPermission(String permission, int uid) { 3910 try { 3911 return AppGlobals.getPackageManager() 3912 .checkUidPermission(permission, uid); 3913 } catch (RemoteException e) { 3914 throw e.rethrowFromSystemServer(); 3915 } 3916 } 3917 3918 /** 3919 * @hide 3920 * Helper for dealing with incoming user arguments to system service calls. 3921 * Takes care of checking permissions and converting USER_CURRENT to the 3922 * actual current user. 3923 * 3924 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3925 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3926 * @param userId The user id argument supplied by the caller -- this is the user 3927 * they want to run as. 3928 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3929 * to get a USER_ALL returned and deal with it correctly. If false, 3930 * an exception will be thrown if USER_ALL is supplied. 3931 * @param requireFull If true, the caller must hold 3932 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3933 * different user than their current process; otherwise they must hold 3934 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3935 * @param name Optional textual name of the incoming call; only for generating error messages. 3936 * @param callerPackage Optional package name of caller; only for error messages. 3937 * 3938 * @return Returns the user ID that the call should run as. Will always be a concrete 3939 * user number, unless <var>allowAll</var> is true in which case it could also be 3940 * USER_ALL. 3941 */ 3942 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3943 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3944 if (UserHandle.getUserId(callingUid) == userId) { 3945 return userId; 3946 } 3947 try { 3948 return getService().handleIncomingUser(callingPid, 3949 callingUid, userId, allowAll, requireFull, name, callerPackage); 3950 } catch (RemoteException e) { 3951 throw e.rethrowFromSystemServer(); 3952 } 3953 } 3954 3955 /** 3956 * Gets the userId of the current foreground user. Requires system permissions. 3957 * @hide 3958 */ 3959 @SystemApi 3960 public static int getCurrentUser() { 3961 UserInfo ui; 3962 try { 3963 ui = getService().getCurrentUser(); 3964 return ui != null ? ui.id : 0; 3965 } catch (RemoteException e) { 3966 throw e.rethrowFromSystemServer(); 3967 } 3968 } 3969 3970 /** 3971 * @param userid the user's id. Zero indicates the default user. 3972 * @hide 3973 */ 3974 public boolean switchUser(int userid) { 3975 try { 3976 return getService().switchUser(userid); 3977 } catch (RemoteException e) { 3978 throw e.rethrowFromSystemServer(); 3979 } 3980 } 3981 3982 /** 3983 * Logs out current current foreground user by switching to the system user and stopping the 3984 * user being switched from. 3985 * @hide 3986 */ 3987 public static void logoutCurrentUser() { 3988 int currentUser = ActivityManager.getCurrentUser(); 3989 if (currentUser != UserHandle.USER_SYSTEM) { 3990 try { 3991 getService().switchUser(UserHandle.USER_SYSTEM); 3992 getService().stopUser(currentUser, /* force= */ false, null); 3993 } catch (RemoteException e) { 3994 e.rethrowFromSystemServer(); 3995 } 3996 } 3997 } 3998 3999 /** {@hide} */ 4000 public static final int FLAG_OR_STOPPED = 1 << 0; 4001 /** {@hide} */ 4002 public static final int FLAG_AND_LOCKED = 1 << 1; 4003 /** {@hide} */ 4004 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4005 /** {@hide} */ 4006 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4007 4008 /** 4009 * Return whether the given user is actively running. This means that 4010 * the user is in the "started" state, not "stopped" -- it is currently 4011 * allowed to run code through scheduled alarms, receiving broadcasts, 4012 * etc. A started user may be either the current foreground user or a 4013 * background user; the result here does not distinguish between the two. 4014 * @param userId the user's id. Zero indicates the default user. 4015 * @hide 4016 */ 4017 public boolean isUserRunning(int userId) { 4018 try { 4019 return getService().isUserRunning(userId, 0); 4020 } catch (RemoteException e) { 4021 throw e.rethrowFromSystemServer(); 4022 } 4023 } 4024 4025 /** {@hide} */ 4026 public boolean isVrModePackageEnabled(ComponentName component) { 4027 try { 4028 return getService().isVrModePackageEnabled(component); 4029 } catch (RemoteException e) { 4030 throw e.rethrowFromSystemServer(); 4031 } 4032 } 4033 4034 /** 4035 * Perform a system dump of various state associated with the given application 4036 * package name. This call blocks while the dump is being performed, so should 4037 * not be done on a UI thread. The data will be written to the given file 4038 * descriptor as text. 4039 * @param fd The file descriptor that the dump should be written to. The file 4040 * descriptor is <em>not</em> closed by this function; the caller continues to 4041 * own it. 4042 * @param packageName The name of the package that is to be dumped. 4043 */ 4044 @RequiresPermission(Manifest.permission.DUMP) 4045 public void dumpPackageState(FileDescriptor fd, String packageName) { 4046 dumpPackageStateStatic(fd, packageName); 4047 } 4048 4049 /** 4050 * @hide 4051 */ 4052 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4053 FileOutputStream fout = new FileOutputStream(fd); 4054 PrintWriter pw = new FastPrintWriter(fout); 4055 dumpService(pw, fd, "package", new String[] { packageName }); 4056 pw.println(); 4057 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4058 "-a", "package", packageName }); 4059 pw.println(); 4060 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4061 pw.println(); 4062 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4063 pw.println(); 4064 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4065 pw.println(); 4066 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4067 pw.flush(); 4068 } 4069 4070 /** 4071 * @hide 4072 */ 4073 public static boolean isSystemReady() { 4074 if (!sSystemReady) { 4075 if (ActivityThread.isSystem()) { 4076 sSystemReady = 4077 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4078 } else { 4079 // Since this is being called from outside system server, system should be 4080 // ready by now. 4081 sSystemReady = true; 4082 } 4083 } 4084 return sSystemReady; 4085 } 4086 4087 /** 4088 * @hide 4089 */ 4090 public static void broadcastStickyIntent(Intent intent, int userId) { 4091 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4092 } 4093 4094 /** 4095 * Convenience for sending a sticky broadcast. For internal use only. 4096 * 4097 * @hide 4098 */ 4099 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4100 try { 4101 getService().broadcastIntent( 4102 null, intent, null, null, Activity.RESULT_OK, null, null, 4103 null /*permission*/, appOp, null, false, true, userId); 4104 } catch (RemoteException ex) { 4105 } 4106 } 4107 4108 /** 4109 * @hide 4110 */ 4111 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4112 String tag) { 4113 try { 4114 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4115 sourceUid, sourcePkg, tag); 4116 } catch (RemoteException ex) { 4117 } 4118 } 4119 4120 /** 4121 * @hide 4122 */ 4123 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4124 try { 4125 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4126 } catch (RemoteException ex) { 4127 } 4128 } 4129 4130 /** 4131 * @hide 4132 */ 4133 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4134 try { 4135 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4136 } catch (RemoteException ex) { 4137 } 4138 } 4139 4140 /** 4141 * @hide 4142 */ 4143 public static IActivityManager getService() { 4144 return IActivityManagerSingleton.get(); 4145 } 4146 4147 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4148 new Singleton<IActivityManager>() { 4149 @Override 4150 protected IActivityManager create() { 4151 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4152 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4153 return am; 4154 } 4155 }; 4156 4157 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4158 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4159 IBinder service = ServiceManager.checkService(name); 4160 if (service == null) { 4161 pw.println(" (Service not found)"); 4162 return; 4163 } 4164 TransferPipe tp = null; 4165 try { 4166 pw.flush(); 4167 tp = new TransferPipe(); 4168 tp.setBufferPrefix(" "); 4169 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4170 tp.go(fd, 10000); 4171 } catch (Throwable e) { 4172 if (tp != null) { 4173 tp.kill(); 4174 } 4175 pw.println("Failure dumping service:"); 4176 e.printStackTrace(pw); 4177 } 4178 } 4179 4180 /** 4181 * Request that the system start watching for the calling process to exceed a pss 4182 * size as given here. Once called, the system will look for any occasions where it 4183 * sees the associated process with a larger pss size and, when this happens, automatically 4184 * pull a heap dump from it and allow the user to share the data. Note that this request 4185 * continues running even if the process is killed and restarted. To remove the watch, 4186 * use {@link #clearWatchHeapLimit()}. 4187 * 4188 * <p>This API only work if the calling process has been marked as 4189 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4190 * (userdebug or eng) build.</p> 4191 * 4192 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4193 * handle heap limit reports themselves.</p> 4194 * 4195 * @param pssSize The size in bytes to set the limit at. 4196 */ 4197 public void setWatchHeapLimit(long pssSize) { 4198 try { 4199 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4200 mContext.getPackageName()); 4201 } catch (RemoteException e) { 4202 throw e.rethrowFromSystemServer(); 4203 } 4204 } 4205 4206 /** 4207 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4208 * If your package has an activity handling this action, it will be launched with the 4209 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4210 * match the activty must support this action and a MIME type of "*/*". 4211 */ 4212 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4213 4214 /** 4215 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4216 */ 4217 public void clearWatchHeapLimit() { 4218 try { 4219 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4220 } catch (RemoteException e) { 4221 throw e.rethrowFromSystemServer(); 4222 } 4223 } 4224 4225 /** 4226 * @hide 4227 */ 4228 public void startLockTaskMode(int taskId) { 4229 try { 4230 getService().startLockTaskModeById(taskId); 4231 } catch (RemoteException e) { 4232 throw e.rethrowFromSystemServer(); 4233 } 4234 } 4235 4236 /** 4237 * @hide 4238 */ 4239 public void stopLockTaskMode() { 4240 try { 4241 getService().stopLockTaskMode(); 4242 } catch (RemoteException e) { 4243 throw e.rethrowFromSystemServer(); 4244 } 4245 } 4246 4247 /** 4248 * Return whether currently in lock task mode. When in this mode 4249 * no new tasks can be created or switched to. 4250 * 4251 * @see Activity#startLockTask() 4252 * 4253 * @deprecated Use {@link #getLockTaskModeState} instead. 4254 */ 4255 @Deprecated 4256 public boolean isInLockTaskMode() { 4257 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4258 } 4259 4260 /** 4261 * Return the current state of task locking. The three possible outcomes 4262 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4263 * and {@link #LOCK_TASK_MODE_PINNED}. 4264 * 4265 * @see Activity#startLockTask() 4266 */ 4267 public int getLockTaskModeState() { 4268 try { 4269 return getService().getLockTaskModeState(); 4270 } catch (RemoteException e) { 4271 throw e.rethrowFromSystemServer(); 4272 } 4273 } 4274 4275 /** 4276 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4277 * thread can be a VR thread in a process at a time, and that thread may be subject to 4278 * restrictions on the amount of time it can run. 4279 * 4280 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4281 * method will return to normal operation, and calling this method will do nothing while 4282 * persistent VR mode is enabled. 4283 * 4284 * To reset the VR thread for an application, a tid of 0 can be passed. 4285 * 4286 * @see android.os.Process#myTid() 4287 * @param tid tid of the VR thread 4288 */ 4289 public static void setVrThread(int tid) { 4290 try { 4291 getService().setVrThread(tid); 4292 } catch (RemoteException e) { 4293 // pass 4294 } 4295 } 4296 4297 /** 4298 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4299 * beyond a single process. Only one thread can be a 4300 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4301 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4302 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4303 * persistent VR thread loses its new scheduling priority; this method must be called again to 4304 * set the persistent thread. 4305 * 4306 * To reset the persistent VR thread, a tid of 0 can be passed. 4307 * 4308 * @see android.os.Process#myTid() 4309 * @param tid tid of the VR thread 4310 * @hide 4311 */ 4312 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4313 public static void setPersistentVrThread(int tid) { 4314 try { 4315 getService().setPersistentVrThread(tid); 4316 } catch (RemoteException e) { 4317 // pass 4318 } 4319 } 4320 4321 /** 4322 * The AppTask allows you to manage your own application's tasks. 4323 * See {@link android.app.ActivityManager#getAppTasks()} 4324 */ 4325 public static class AppTask { 4326 private IAppTask mAppTaskImpl; 4327 4328 /** @hide */ 4329 public AppTask(IAppTask task) { 4330 mAppTaskImpl = task; 4331 } 4332 4333 /** 4334 * Finishes all activities in this task and removes it from the recent tasks list. 4335 */ 4336 public void finishAndRemoveTask() { 4337 try { 4338 mAppTaskImpl.finishAndRemoveTask(); 4339 } catch (RemoteException e) { 4340 throw e.rethrowFromSystemServer(); 4341 } 4342 } 4343 4344 /** 4345 * Get the RecentTaskInfo associated with this task. 4346 * 4347 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4348 */ 4349 public RecentTaskInfo getTaskInfo() { 4350 try { 4351 return mAppTaskImpl.getTaskInfo(); 4352 } catch (RemoteException e) { 4353 throw e.rethrowFromSystemServer(); 4354 } 4355 } 4356 4357 /** 4358 * Bring this task to the foreground. If it contains activities, they will be 4359 * brought to the foreground with it and their instances re-created if needed. 4360 * If it doesn't contain activities, the root activity of the task will be 4361 * re-launched. 4362 */ 4363 public void moveToFront() { 4364 try { 4365 mAppTaskImpl.moveToFront(); 4366 } catch (RemoteException e) { 4367 throw e.rethrowFromSystemServer(); 4368 } 4369 } 4370 4371 /** 4372 * Start an activity in this task. Brings the task to the foreground. If this task 4373 * is not currently active (that is, its id < 0), then a new activity for the given 4374 * Intent will be launched as the root of the task and the task brought to the 4375 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4376 * an activity to launch in a new task, then a new activity for the given Intent will 4377 * be launched on top of the task and the task brought to the foreground. If this 4378 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4379 * or would otherwise be launched in to a new task, then the activity not launched but 4380 * this task be brought to the foreground and a new intent delivered to the top 4381 * activity if appropriate. 4382 * 4383 * <p>In other words, you generally want to use an Intent here that does not specify 4384 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4385 * and let the system do the right thing.</p> 4386 * 4387 * @param intent The Intent describing the new activity to be launched on the task. 4388 * @param options Optional launch options. 4389 * 4390 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4391 */ 4392 public void startActivity(Context context, Intent intent, Bundle options) { 4393 ActivityThread thread = ActivityThread.currentActivityThread(); 4394 thread.getInstrumentation().execStartActivityFromAppTask(context, 4395 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4396 } 4397 4398 /** 4399 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4400 * Intent of this AppTask. 4401 * 4402 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4403 * be set; otherwise, it will be cleared. 4404 */ 4405 public void setExcludeFromRecents(boolean exclude) { 4406 try { 4407 mAppTaskImpl.setExcludeFromRecents(exclude); 4408 } catch (RemoteException e) { 4409 throw e.rethrowFromSystemServer(); 4410 } 4411 } 4412 } 4413} 4414