ActivityManager.java revision 83b40f69bef4ba17bb63ac30d52f661a12d5b4f4
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 transient so we will try to keep running. */ 462 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 463 464 /** @hide Process is in the background running a backup/restore operation. */ 465 public static final int PROCESS_STATE_BACKUP = 9; 466 467 /** @hide Process is in the background, but it can't restore its state so we want 468 * to try to avoid killing it. */ 469 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 470 471 /** @hide Process is in the background running a service. Unlike oom_adj, this level 472 * is used for both the normal running in background state and the executing 473 * operations state. */ 474 public static final int PROCESS_STATE_SERVICE = 11; 475 476 /** @hide Process is in the background running a receiver. Note that from the 477 * perspective of oom_adj receivers run at a higher foreground level, but for our 478 * prioritization here that is not necessary and putting them below services means 479 * many fewer changes in some process states as they receive broadcasts. */ 480 public static final int PROCESS_STATE_RECEIVER = 12; 481 482 /** @hide Process is in the background but hosts the home activity. */ 483 public static final int PROCESS_STATE_HOME = 13; 484 485 /** @hide Process is in the background but hosts the last shown activity. */ 486 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 487 488 /** @hide Process is being cached for later use and contains activities. */ 489 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 490 491 /** @hide Process is being cached for later use and is a client of another cached 492 * process that contains activities. */ 493 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 494 495 /** @hide Process is being cached for later use and is empty. */ 496 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 497 498 /** @hide Process does not exist. */ 499 public static final int PROCESS_STATE_NONEXISTENT = 18; 500 501 /** @hide The lowest process state number */ 502 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 503 504 /** @hide The highest process state number */ 505 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 506 507 /** @hide Should this process state be considered a background state? */ 508 public static final boolean isProcStateBackground(int procState) { 509 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 510 } 511 512 /** @hide requestType for assist context: only basic information. */ 513 public static final int ASSIST_CONTEXT_BASIC = 0; 514 515 /** @hide requestType for assist context: generate full AssistStructure. */ 516 public static final int ASSIST_CONTEXT_FULL = 1; 517 518 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 519 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 520 521 /** @hide Flag for registerUidObserver: report changes in process state. */ 522 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 523 524 /** @hide Flag for registerUidObserver: report uid gone. */ 525 public static final int UID_OBSERVER_GONE = 1<<1; 526 527 /** @hide Flag for registerUidObserver: report uid has become idle. */ 528 public static final int UID_OBSERVER_IDLE = 1<<2; 529 530 /** @hide Flag for registerUidObserver: report uid has become active. */ 531 public static final int UID_OBSERVER_ACTIVE = 1<<3; 532 533 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 534 public static final int APP_START_MODE_NORMAL = 0; 535 536 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 537 public static final int APP_START_MODE_DELAYED = 1; 538 539 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 540 * rigid errors (throwing exception). */ 541 public static final int APP_START_MODE_DELAYED_RIGID = 2; 542 543 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 544 * launches; this is the mode for ephemeral apps. */ 545 public static final int APP_START_MODE_DISABLED = 3; 546 547 /** 548 * Lock task mode is not active. 549 */ 550 public static final int LOCK_TASK_MODE_NONE = 0; 551 552 /** 553 * Full lock task mode is active. 554 */ 555 public static final int LOCK_TASK_MODE_LOCKED = 1; 556 557 /** 558 * App pinning mode is active. 559 */ 560 public static final int LOCK_TASK_MODE_PINNED = 2; 561 562 Point mAppTaskThumbnailSize; 563 564 /*package*/ ActivityManager(Context context, Handler handler) { 565 mContext = context; 566 } 567 568 /** 569 * Screen compatibility mode: the application most always run in 570 * compatibility mode. 571 * @hide 572 */ 573 public static final int COMPAT_MODE_ALWAYS = -1; 574 575 /** 576 * Screen compatibility mode: the application can never run in 577 * compatibility mode. 578 * @hide 579 */ 580 public static final int COMPAT_MODE_NEVER = -2; 581 582 /** 583 * Screen compatibility mode: unknown. 584 * @hide 585 */ 586 public static final int COMPAT_MODE_UNKNOWN = -3; 587 588 /** 589 * Screen compatibility mode: the application currently has compatibility 590 * mode disabled. 591 * @hide 592 */ 593 public static final int COMPAT_MODE_DISABLED = 0; 594 595 /** 596 * Screen compatibility mode: the application currently has compatibility 597 * mode enabled. 598 * @hide 599 */ 600 public static final int COMPAT_MODE_ENABLED = 1; 601 602 /** 603 * Screen compatibility mode: request to toggle the application's 604 * compatibility mode. 605 * @hide 606 */ 607 public static final int COMPAT_MODE_TOGGLE = 2; 608 609 /** @hide */ 610 public static class StackId { 611 /** Invalid stack ID. */ 612 public static final int INVALID_STACK_ID = -1; 613 614 /** First static stack ID. */ 615 public static final int FIRST_STATIC_STACK_ID = 0; 616 617 /** Home activity stack ID. */ 618 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 619 620 /** ID of stack where fullscreen activities are normally launched into. */ 621 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 622 623 /** ID of stack where freeform/resized activities are normally launched into. */ 624 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 625 626 /** ID of stack that occupies a dedicated region of the screen. */ 627 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 628 629 /** ID of stack that always on top (always visible) when it exist. */ 630 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 631 632 /** ID of stack that contains the Recents activity. */ 633 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 634 635 /** ID of stack that contains activities launched by the assistant. */ 636 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 637 638 /** Last static stack stack ID. */ 639 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 640 641 /** Start of ID range used by stacks that are created dynamically. */ 642 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 643 644 public static boolean isStaticStack(int stackId) { 645 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 646 } 647 648 public static boolean isDynamicStack(int stackId) { 649 return stackId >= FIRST_DYNAMIC_STACK_ID; 650 } 651 652 /** 653 * Returns true if the activities contained in the input stack display a shadow around 654 * their border. 655 */ 656 public static boolean hasWindowShadow(int stackId) { 657 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 658 } 659 660 /** 661 * Returns true if the activities contained in the input stack display a decor view. 662 */ 663 public static boolean hasWindowDecor(int stackId) { 664 return stackId == FREEFORM_WORKSPACE_STACK_ID; 665 } 666 667 /** 668 * Returns true if the tasks contained in the stack can be resized independently of the 669 * stack. 670 */ 671 public static boolean isTaskResizeAllowed(int stackId) { 672 return stackId == FREEFORM_WORKSPACE_STACK_ID; 673 } 674 675 /** Returns true if the task bounds should persist across power cycles. */ 676 public static boolean persistTaskBounds(int stackId) { 677 return stackId == FREEFORM_WORKSPACE_STACK_ID; 678 } 679 680 /** 681 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 682 */ 683 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 684 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 685 } 686 687 /** 688 * Returns true if we try to maintain focus in the current stack when the top activity 689 * finishes. 690 */ 691 public static boolean keepFocusInStackIfPossible(int stackId) { 692 return stackId == FREEFORM_WORKSPACE_STACK_ID 693 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 694 } 695 696 /** 697 * Returns true if Stack size is affected by the docked stack changing size. 698 */ 699 public static boolean isResizeableByDockedStack(int stackId) { 700 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 701 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 702 } 703 704 /** 705 * Returns true if the size of tasks in the input stack are affected by the docked stack 706 * changing size. 707 */ 708 public static boolean isTaskResizeableByDockedStack(int stackId) { 709 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 710 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 711 && stackId != ASSISTANT_STACK_ID; 712 } 713 714 /** 715 * Returns true if the input stack is affected by drag resizing. 716 */ 717 public static boolean isStackAffectedByDragResizing(int stackId) { 718 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 719 && stackId != ASSISTANT_STACK_ID; 720 } 721 722 /** 723 * Returns true if the windows of tasks being moved to the target stack from the source 724 * stack should be replaced, meaning that window manager will keep the old window around 725 * until the new is ready. 726 */ 727 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 728 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 729 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 730 } 731 732 /** 733 * Return whether a stackId is a stack containing floating windows. Floating windows 734 * are laid out differently as they are allowed to extend past the display bounds 735 * without overscan insets. 736 */ 737 public static boolean tasksAreFloating(int stackId) { 738 return stackId == FREEFORM_WORKSPACE_STACK_ID 739 || stackId == PINNED_STACK_ID; 740 } 741 742 /** 743 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 744 * are generally fullscreen stacks. 745 */ 746 public static boolean isBackdropToTranslucentActivity(int stackId) { 747 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 748 || stackId == ASSISTANT_STACK_ID; 749 } 750 751 /** 752 * Returns true if animation specs should be constructed for app transition that moves 753 * the task to the specified stack. 754 */ 755 public static boolean useAnimationSpecForAppTransition(int stackId) { 756 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 757 // reboots. 758 return stackId == FREEFORM_WORKSPACE_STACK_ID 759 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 760 || stackId == ASSISTANT_STACK_ID 761 || stackId == DOCKED_STACK_ID 762 || stackId == INVALID_STACK_ID; 763 } 764 765 /** 766 * Returns true if the windows in the stack can receive input keys. 767 */ 768 public static boolean canReceiveKeys(int stackId) { 769 return stackId != PINNED_STACK_ID; 770 } 771 772 /** 773 * Returns true if the stack can be visible above lockscreen. 774 */ 775 public static boolean isAllowedOverLockscreen(int stackId) { 776 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 777 stackId == ASSISTANT_STACK_ID; 778 } 779 780 /** 781 * Returns true if activities from stasks in the given {@param stackId} are allowed to 782 * enter picture-in-picture. 783 */ 784 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 785 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 786 stackId != RECENTS_STACK_ID; 787 } 788 789 public static boolean isAlwaysOnTop(int stackId) { 790 return stackId == PINNED_STACK_ID; 791 } 792 793 /** 794 * Returns true if the top task in the task is allowed to return home when finished and 795 * there are other tasks in the stack. 796 */ 797 public static boolean allowTopTaskToReturnHome(int stackId) { 798 return stackId != PINNED_STACK_ID; 799 } 800 801 /** 802 * Returns true if the stack should be resized to match the bounds specified by 803 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 804 */ 805 public static boolean resizeStackWithLaunchBounds(int stackId) { 806 return stackId == PINNED_STACK_ID; 807 } 808 809 /** 810 * Returns true if any visible windows belonging to apps in this stack should be kept on 811 * screen when the app is killed due to something like the low memory killer. 812 */ 813 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 814 return stackId != PINNED_STACK_ID; 815 } 816 817 /** 818 * Returns true if the backdrop on the client side should match the frame of the window. 819 * Returns false, if the backdrop should be fullscreen. 820 */ 821 public static boolean useWindowFrameForBackdrop(int stackId) { 822 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 823 } 824 825 /** 826 * Returns true if a window from the specified stack with {@param stackId} are normally 827 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 828 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 829 * etc. 830 */ 831 public static boolean normallyFullscreenWindows(int stackId) { 832 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 833 && stackId != DOCKED_STACK_ID; 834 } 835 836 /** 837 * Returns true if the input stack id should only be present on a device that supports 838 * multi-window mode. 839 * @see android.app.ActivityManager#supportsMultiWindow 840 */ 841 public static boolean isMultiWindowStack(int stackId) { 842 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 843 || stackId == DOCKED_STACK_ID; 844 } 845 846 /** 847 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 848 */ 849 public static boolean isHomeOrRecentsStack(int stackId) { 850 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 851 } 852 853 /** 854 * Returns true if activities contained in this stack can request visible behind by 855 * calling {@link Activity#requestVisibleBehind}. 856 * 857 * @deprecated This method's functionality is no longer supported as of 858 * {@link android.os.Build.VERSION_CODES#O} and will be removed in a future release. 859 */ 860 @Deprecated 861 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 862 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 863 stackId == ASSISTANT_STACK_ID; 864 } 865 866 /** 867 * Returns true if this stack may be scaled without resizing, and windows within may need 868 * to be configured as such. 869 */ 870 public static boolean windowsAreScaleable(int stackId) { 871 return stackId == PINNED_STACK_ID; 872 } 873 874 /** 875 * Returns true if windows in this stack should be given move animations by default. 876 */ 877 public static boolean hasMovementAnimations(int stackId) { 878 return stackId != PINNED_STACK_ID; 879 } 880 881 /** Returns true if the input stack and its content can affect the device orientation. */ 882 public static boolean canSpecifyOrientation(int stackId) { 883 return stackId == HOME_STACK_ID 884 || stackId == RECENTS_STACK_ID 885 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 886 || stackId == ASSISTANT_STACK_ID 887 || isDynamicStack(stackId); 888 } 889 } 890 891 /** 892 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 893 * specifies the position of the created docked stack at the top half of the screen if 894 * in portrait mode or at the left half of the screen if in landscape mode. 895 * @hide 896 */ 897 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 898 899 /** 900 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 901 * specifies the position of the created docked stack at the bottom half of the screen if 902 * in portrait mode or at the right half of the screen if in landscape mode. 903 * @hide 904 */ 905 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 906 907 /** 908 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 909 * that the resize doesn't need to preserve the window, and can be skipped if bounds 910 * is unchanged. This mode is used by window manager in most cases. 911 * @hide 912 */ 913 public static final int RESIZE_MODE_SYSTEM = 0; 914 915 /** 916 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 917 * that the resize should preserve the window if possible. 918 * @hide 919 */ 920 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 921 922 /** 923 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 924 * that the resize should be performed even if the bounds appears unchanged. 925 * @hide 926 */ 927 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 928 929 /** 930 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 931 * manager during a screen rotation. 932 * @hide 933 */ 934 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 935 936 /** 937 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 938 * resize is due to a drag action. 939 * @hide 940 */ 941 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 942 943 /** 944 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 945 * that the resize should preserve the window if possible, and should not be skipped 946 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 947 * is ending. 948 * @hide 949 */ 950 public static final int RESIZE_MODE_USER_FORCED = 951 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 952 953 /** @hide */ 954 public int getFrontActivityScreenCompatMode() { 955 try { 956 return getService().getFrontActivityScreenCompatMode(); 957 } catch (RemoteException e) { 958 throw e.rethrowFromSystemServer(); 959 } 960 } 961 962 /** @hide */ 963 public void setFrontActivityScreenCompatMode(int mode) { 964 try { 965 getService().setFrontActivityScreenCompatMode(mode); 966 } catch (RemoteException e) { 967 throw e.rethrowFromSystemServer(); 968 } 969 } 970 971 /** @hide */ 972 public int getPackageScreenCompatMode(String packageName) { 973 try { 974 return getService().getPackageScreenCompatMode(packageName); 975 } catch (RemoteException e) { 976 throw e.rethrowFromSystemServer(); 977 } 978 } 979 980 /** @hide */ 981 public void setPackageScreenCompatMode(String packageName, int mode) { 982 try { 983 getService().setPackageScreenCompatMode(packageName, mode); 984 } catch (RemoteException e) { 985 throw e.rethrowFromSystemServer(); 986 } 987 } 988 989 /** @hide */ 990 public boolean getPackageAskScreenCompat(String packageName) { 991 try { 992 return getService().getPackageAskScreenCompat(packageName); 993 } catch (RemoteException e) { 994 throw e.rethrowFromSystemServer(); 995 } 996 } 997 998 /** @hide */ 999 public void setPackageAskScreenCompat(String packageName, boolean ask) { 1000 try { 1001 getService().setPackageAskScreenCompat(packageName, ask); 1002 } catch (RemoteException e) { 1003 throw e.rethrowFromSystemServer(); 1004 } 1005 } 1006 1007 /** 1008 * Return the approximate per-application memory class of the current 1009 * device. This gives you an idea of how hard a memory limit you should 1010 * impose on your application to let the overall system work best. The 1011 * returned value is in megabytes; the baseline Android memory class is 1012 * 16 (which happens to be the Java heap limit of those devices); some 1013 * device with more memory may return 24 or even higher numbers. 1014 */ 1015 public int getMemoryClass() { 1016 return staticGetMemoryClass(); 1017 } 1018 1019 /** @hide */ 1020 static public int staticGetMemoryClass() { 1021 // Really brain dead right now -- just take this from the configured 1022 // vm heap size, and assume it is in megabytes and thus ends with "m". 1023 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1024 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1025 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1026 } 1027 return staticGetLargeMemoryClass(); 1028 } 1029 1030 /** 1031 * Return the approximate per-application memory class of the current 1032 * device when an application is running with a large heap. This is the 1033 * space available for memory-intensive applications; most applications 1034 * should not need this amount of memory, and should instead stay with the 1035 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1036 * This may be the same size as {@link #getMemoryClass()} on memory 1037 * constrained devices, or it may be significantly larger on devices with 1038 * a large amount of available RAM. 1039 * 1040 * <p>The is the size of the application's Dalvik heap if it has 1041 * specified <code>android:largeHeap="true"</code> in its manifest. 1042 */ 1043 public int getLargeMemoryClass() { 1044 return staticGetLargeMemoryClass(); 1045 } 1046 1047 /** @hide */ 1048 static public int staticGetLargeMemoryClass() { 1049 // Really brain dead right now -- just take this from the configured 1050 // vm heap size, and assume it is in megabytes and thus ends with "m". 1051 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1052 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1053 } 1054 1055 /** 1056 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1057 * is ultimately up to the device configuration, but currently it generally means 1058 * something in the class of a 512MB device with about a 800x480 or less screen. 1059 * This is mostly intended to be used by apps to determine whether they should turn 1060 * off certain features that require more RAM. 1061 */ 1062 public boolean isLowRamDevice() { 1063 return isLowRamDeviceStatic(); 1064 } 1065 1066 /** @hide */ 1067 public static boolean isLowRamDeviceStatic() { 1068 return RoSystemProperties.CONFIG_LOW_RAM; 1069 } 1070 1071 /** 1072 * Used by persistent processes to determine if they are running on a 1073 * higher-end device so should be okay using hardware drawing acceleration 1074 * (which tends to consume a lot more RAM). 1075 * @hide 1076 */ 1077 static public boolean isHighEndGfx() { 1078 return !isLowRamDeviceStatic() && 1079 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1080 } 1081 1082 /** 1083 * Return the maximum number of recents entries that we will maintain and show. 1084 * @hide 1085 */ 1086 static public int getMaxRecentTasksStatic() { 1087 if (gMaxRecentTasks < 0) { 1088 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1089 } 1090 return gMaxRecentTasks; 1091 } 1092 1093 /** 1094 * Return the default limit on the number of recents that an app can make. 1095 * @hide 1096 */ 1097 static public int getDefaultAppRecentsLimitStatic() { 1098 return getMaxRecentTasksStatic() / 6; 1099 } 1100 1101 /** 1102 * Return the maximum limit on the number of recents that an app can make. 1103 * @hide 1104 */ 1105 static public int getMaxAppRecentsLimitStatic() { 1106 return getMaxRecentTasksStatic() / 2; 1107 } 1108 1109 /** 1110 * Returns true if the system supports at least one form of multi-window. 1111 * E.g. freeform, split-screen, picture-in-picture. 1112 * @hide 1113 */ 1114 static public boolean supportsMultiWindow() { 1115 return !isLowRamDeviceStatic() 1116 && Resources.getSystem().getBoolean( 1117 com.android.internal.R.bool.config_supportsMultiWindow); 1118 } 1119 1120 /** 1121 * Returns true if the system supports split screen multi-window. 1122 * @hide 1123 */ 1124 static public boolean supportsSplitScreenMultiWindow() { 1125 return supportsMultiWindow() 1126 && Resources.getSystem().getBoolean( 1127 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1128 } 1129 1130 /** 1131 * Return the number of actions that will be displayed in the picture-in-picture UI when the 1132 * user interacts with the activity currently in picture-in-picture mode. This number may change 1133 * if the global configuration changes (ie. if the device is plugged into an external display). 1134 * 1135 * TO BE REMOVED 1136 */ 1137 @Deprecated 1138 public static int getMaxNumPictureInPictureActions() { 1139 return 3; 1140 } 1141 1142 /** 1143 * Information you can set and retrieve about the current activity within the recent task list. 1144 */ 1145 public static class TaskDescription implements Parcelable { 1146 /** @hide */ 1147 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1148 private static final String ATTR_TASKDESCRIPTIONLABEL = 1149 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1150 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1151 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1152 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1153 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1154 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1155 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1156 1157 private String mLabel; 1158 private Bitmap mIcon; 1159 private String mIconFilename; 1160 private int mColorPrimary; 1161 private int mColorBackground; 1162 private int mStatusBarColor; 1163 private int mNavigationBarColor; 1164 1165 /** 1166 * Creates the TaskDescription to the specified values. 1167 * 1168 * @param label A label and description of the current state of this task. 1169 * @param icon An icon that represents the current state of this task. 1170 * @param colorPrimary A color to override the theme's primary color. This color must be 1171 * opaque. 1172 */ 1173 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1174 this(label, icon, null, colorPrimary, 0, 0, 0); 1175 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1176 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1177 } 1178 } 1179 1180 /** 1181 * Creates the TaskDescription to the specified values. 1182 * 1183 * @param label A label and description of the current state of this activity. 1184 * @param icon An icon that represents the current state of this activity. 1185 */ 1186 public TaskDescription(String label, Bitmap icon) { 1187 this(label, icon, null, 0, 0, 0, 0); 1188 } 1189 1190 /** 1191 * Creates the TaskDescription to the specified values. 1192 * 1193 * @param label A label and description of the current state of this activity. 1194 */ 1195 public TaskDescription(String label) { 1196 this(label, null, null, 0, 0, 0, 0); 1197 } 1198 1199 /** 1200 * Creates an empty TaskDescription. 1201 */ 1202 public TaskDescription() { 1203 this(null, null, null, 0, 0, 0, 0); 1204 } 1205 1206 /** @hide */ 1207 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1208 int colorBackground, int statusBarColor, int navigationBarColor) { 1209 mLabel = label; 1210 mIcon = icon; 1211 mIconFilename = iconFilename; 1212 mColorPrimary = colorPrimary; 1213 mColorBackground = colorBackground; 1214 mStatusBarColor = statusBarColor; 1215 mNavigationBarColor = navigationBarColor; 1216 } 1217 1218 /** 1219 * Creates a copy of another TaskDescription. 1220 */ 1221 public TaskDescription(TaskDescription td) { 1222 copyFrom(td); 1223 } 1224 1225 /** 1226 * Copies this the values from another TaskDescription. 1227 * @hide 1228 */ 1229 public void copyFrom(TaskDescription other) { 1230 mLabel = other.mLabel; 1231 mIcon = other.mIcon; 1232 mIconFilename = other.mIconFilename; 1233 mColorPrimary = other.mColorPrimary; 1234 mColorBackground = other.mColorBackground; 1235 mStatusBarColor = other.mStatusBarColor; 1236 mNavigationBarColor = other.mNavigationBarColor; 1237 } 1238 1239 /** 1240 * Copies this the values from another TaskDescription, but preserves the hidden fields 1241 * if they weren't set on {@code other} 1242 * @hide 1243 */ 1244 public void copyFromPreserveHiddenFields(TaskDescription other) { 1245 mLabel = other.mLabel; 1246 mIcon = other.mIcon; 1247 mIconFilename = other.mIconFilename; 1248 mColorPrimary = other.mColorPrimary; 1249 if (other.mColorBackground != 0) { 1250 mColorBackground = other.mColorBackground; 1251 } 1252 if (other.mStatusBarColor != 0) { 1253 mStatusBarColor = other.mStatusBarColor; 1254 } 1255 if (other.mNavigationBarColor != 0) { 1256 mNavigationBarColor = other.mNavigationBarColor; 1257 } 1258 } 1259 1260 private TaskDescription(Parcel source) { 1261 readFromParcel(source); 1262 } 1263 1264 /** 1265 * Sets the label for this task description. 1266 * @hide 1267 */ 1268 public void setLabel(String label) { 1269 mLabel = label; 1270 } 1271 1272 /** 1273 * Sets the primary color for this task description. 1274 * @hide 1275 */ 1276 public void setPrimaryColor(int primaryColor) { 1277 // Ensure that the given color is valid 1278 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1279 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1280 } 1281 mColorPrimary = primaryColor; 1282 } 1283 1284 /** 1285 * Sets the background color for this task description. 1286 * @hide 1287 */ 1288 public void setBackgroundColor(int backgroundColor) { 1289 // Ensure that the given color is valid 1290 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1291 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1292 } 1293 mColorBackground = backgroundColor; 1294 } 1295 1296 /** 1297 * @hide 1298 */ 1299 public void setStatusBarColor(int statusBarColor) { 1300 mStatusBarColor = statusBarColor; 1301 } 1302 1303 /** 1304 * @hide 1305 */ 1306 public void setNavigationBarColor(int navigationBarColor) { 1307 mNavigationBarColor = navigationBarColor; 1308 } 1309 1310 /** 1311 * Sets the icon for this task description. 1312 * @hide 1313 */ 1314 public void setIcon(Bitmap icon) { 1315 mIcon = icon; 1316 } 1317 1318 /** 1319 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1320 * bitmap. 1321 * @hide 1322 */ 1323 public void setIconFilename(String iconFilename) { 1324 mIconFilename = iconFilename; 1325 mIcon = null; 1326 } 1327 1328 /** 1329 * @return The label and description of the current state of this task. 1330 */ 1331 public String getLabel() { 1332 return mLabel; 1333 } 1334 1335 /** 1336 * @return The icon that represents the current state of this task. 1337 */ 1338 public Bitmap getIcon() { 1339 if (mIcon != null) { 1340 return mIcon; 1341 } 1342 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1343 } 1344 1345 /** @hide */ 1346 public String getIconFilename() { 1347 return mIconFilename; 1348 } 1349 1350 /** @hide */ 1351 public Bitmap getInMemoryIcon() { 1352 return mIcon; 1353 } 1354 1355 /** @hide */ 1356 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1357 if (iconFilename != null) { 1358 try { 1359 return getService().getTaskDescriptionIcon(iconFilename, 1360 userId); 1361 } catch (RemoteException e) { 1362 throw e.rethrowFromSystemServer(); 1363 } 1364 } 1365 return null; 1366 } 1367 1368 /** 1369 * @return The color override on the theme's primary color. 1370 */ 1371 public int getPrimaryColor() { 1372 return mColorPrimary; 1373 } 1374 1375 /** 1376 * @return The background color. 1377 * @hide 1378 */ 1379 public int getBackgroundColor() { 1380 return mColorBackground; 1381 } 1382 1383 /** 1384 * @hide 1385 */ 1386 public int getStatusBarColor() { 1387 return mStatusBarColor; 1388 } 1389 1390 /** 1391 * @hide 1392 */ 1393 public int getNavigationBarColor() { 1394 return mNavigationBarColor; 1395 } 1396 1397 /** @hide */ 1398 public void saveToXml(XmlSerializer out) throws IOException { 1399 if (mLabel != null) { 1400 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1401 } 1402 if (mColorPrimary != 0) { 1403 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1404 Integer.toHexString(mColorPrimary)); 1405 } 1406 if (mColorBackground != 0) { 1407 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1408 Integer.toHexString(mColorBackground)); 1409 } 1410 if (mIconFilename != null) { 1411 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1412 } 1413 } 1414 1415 /** @hide */ 1416 public void restoreFromXml(String attrName, String attrValue) { 1417 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1418 setLabel(attrValue); 1419 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1420 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1421 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1422 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1423 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1424 setIconFilename(attrValue); 1425 } 1426 } 1427 1428 @Override 1429 public int describeContents() { 1430 return 0; 1431 } 1432 1433 @Override 1434 public void writeToParcel(Parcel dest, int flags) { 1435 if (mLabel == null) { 1436 dest.writeInt(0); 1437 } else { 1438 dest.writeInt(1); 1439 dest.writeString(mLabel); 1440 } 1441 if (mIcon == null) { 1442 dest.writeInt(0); 1443 } else { 1444 dest.writeInt(1); 1445 mIcon.writeToParcel(dest, 0); 1446 } 1447 dest.writeInt(mColorPrimary); 1448 dest.writeInt(mColorBackground); 1449 dest.writeInt(mStatusBarColor); 1450 dest.writeInt(mNavigationBarColor); 1451 if (mIconFilename == null) { 1452 dest.writeInt(0); 1453 } else { 1454 dest.writeInt(1); 1455 dest.writeString(mIconFilename); 1456 } 1457 } 1458 1459 public void readFromParcel(Parcel source) { 1460 mLabel = source.readInt() > 0 ? source.readString() : null; 1461 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1462 mColorPrimary = source.readInt(); 1463 mColorBackground = source.readInt(); 1464 mStatusBarColor = source.readInt(); 1465 mNavigationBarColor = source.readInt(); 1466 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1467 } 1468 1469 public static final Creator<TaskDescription> CREATOR 1470 = new Creator<TaskDescription>() { 1471 public TaskDescription createFromParcel(Parcel source) { 1472 return new TaskDescription(source); 1473 } 1474 public TaskDescription[] newArray(int size) { 1475 return new TaskDescription[size]; 1476 } 1477 }; 1478 1479 @Override 1480 public String toString() { 1481 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1482 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1483 " colorBackground: " + mColorBackground + 1484 " statusBarColor: " + mColorBackground + 1485 " navigationBarColor: " + mNavigationBarColor; 1486 } 1487 } 1488 1489 /** 1490 * Information you can retrieve about tasks that the user has most recently 1491 * started or visited. 1492 */ 1493 public static class RecentTaskInfo implements Parcelable { 1494 /** 1495 * If this task is currently running, this is the identifier for it. 1496 * If it is not running, this will be -1. 1497 */ 1498 public int id; 1499 1500 /** 1501 * The true identifier of this task, valid even if it is not running. 1502 */ 1503 public int persistentId; 1504 1505 /** 1506 * The original Intent used to launch the task. You can use this 1507 * Intent to re-launch the task (if it is no longer running) or bring 1508 * the current task to the front. 1509 */ 1510 public Intent baseIntent; 1511 1512 /** 1513 * If this task was started from an alias, this is the actual 1514 * activity component that was initially started; the component of 1515 * the baseIntent in this case is the name of the actual activity 1516 * implementation that the alias referred to. Otherwise, this is null. 1517 */ 1518 public ComponentName origActivity; 1519 1520 /** 1521 * The actual activity component that started the task. 1522 * @hide 1523 */ 1524 @Nullable 1525 public ComponentName realActivity; 1526 1527 /** 1528 * Description of the task's last state. 1529 */ 1530 public CharSequence description; 1531 1532 /** 1533 * The id of the ActivityStack this Task was on most recently. 1534 * @hide 1535 */ 1536 public int stackId; 1537 1538 /** 1539 * The id of the user the task was running as. 1540 * @hide 1541 */ 1542 public int userId; 1543 1544 /** 1545 * The first time this task was active. 1546 * @hide 1547 */ 1548 public long firstActiveTime; 1549 1550 /** 1551 * The last time this task was active. 1552 * @hide 1553 */ 1554 public long lastActiveTime; 1555 1556 /** 1557 * The recent activity values for the highest activity in the stack to have set the values. 1558 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1559 */ 1560 public TaskDescription taskDescription; 1561 1562 /** 1563 * Task affiliation for grouping with other tasks. 1564 */ 1565 public int affiliatedTaskId; 1566 1567 /** 1568 * Task affiliation color of the source task with the affiliated task id. 1569 * 1570 * @hide 1571 */ 1572 public int affiliatedTaskColor; 1573 1574 /** 1575 * The component launched as the first activity in the task. 1576 * This can be considered the "application" of this task. 1577 */ 1578 public ComponentName baseActivity; 1579 1580 /** 1581 * The activity component at the top of the history stack of the task. 1582 * This is what the user is currently doing. 1583 */ 1584 public ComponentName topActivity; 1585 1586 /** 1587 * Number of activities in this task. 1588 */ 1589 public int numActivities; 1590 1591 /** 1592 * The bounds of the task. 1593 * @hide 1594 */ 1595 public Rect bounds; 1596 1597 /** 1598 * True if the task can go in the docked stack. 1599 * @hide 1600 */ 1601 public boolean supportsSplitScreenMultiWindow; 1602 1603 /** 1604 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1605 * @hide 1606 */ 1607 public int resizeMode; 1608 1609 public RecentTaskInfo() { 1610 } 1611 1612 @Override 1613 public int describeContents() { 1614 return 0; 1615 } 1616 1617 @Override 1618 public void writeToParcel(Parcel dest, int flags) { 1619 dest.writeInt(id); 1620 dest.writeInt(persistentId); 1621 if (baseIntent != null) { 1622 dest.writeInt(1); 1623 baseIntent.writeToParcel(dest, 0); 1624 } else { 1625 dest.writeInt(0); 1626 } 1627 ComponentName.writeToParcel(origActivity, dest); 1628 ComponentName.writeToParcel(realActivity, dest); 1629 TextUtils.writeToParcel(description, dest, 1630 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1631 if (taskDescription != null) { 1632 dest.writeInt(1); 1633 taskDescription.writeToParcel(dest, 0); 1634 } else { 1635 dest.writeInt(0); 1636 } 1637 dest.writeInt(stackId); 1638 dest.writeInt(userId); 1639 dest.writeLong(firstActiveTime); 1640 dest.writeLong(lastActiveTime); 1641 dest.writeInt(affiliatedTaskId); 1642 dest.writeInt(affiliatedTaskColor); 1643 ComponentName.writeToParcel(baseActivity, dest); 1644 ComponentName.writeToParcel(topActivity, dest); 1645 dest.writeInt(numActivities); 1646 if (bounds != null) { 1647 dest.writeInt(1); 1648 bounds.writeToParcel(dest, 0); 1649 } else { 1650 dest.writeInt(0); 1651 } 1652 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1653 dest.writeInt(resizeMode); 1654 } 1655 1656 public void readFromParcel(Parcel source) { 1657 id = source.readInt(); 1658 persistentId = source.readInt(); 1659 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1660 origActivity = ComponentName.readFromParcel(source); 1661 realActivity = ComponentName.readFromParcel(source); 1662 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1663 taskDescription = source.readInt() > 0 ? 1664 TaskDescription.CREATOR.createFromParcel(source) : null; 1665 stackId = source.readInt(); 1666 userId = source.readInt(); 1667 firstActiveTime = source.readLong(); 1668 lastActiveTime = source.readLong(); 1669 affiliatedTaskId = source.readInt(); 1670 affiliatedTaskColor = source.readInt(); 1671 baseActivity = ComponentName.readFromParcel(source); 1672 topActivity = ComponentName.readFromParcel(source); 1673 numActivities = source.readInt(); 1674 bounds = source.readInt() > 0 ? 1675 Rect.CREATOR.createFromParcel(source) : null; 1676 supportsSplitScreenMultiWindow = source.readInt() == 1; 1677 resizeMode = source.readInt(); 1678 } 1679 1680 public static final Creator<RecentTaskInfo> CREATOR 1681 = new Creator<RecentTaskInfo>() { 1682 public RecentTaskInfo createFromParcel(Parcel source) { 1683 return new RecentTaskInfo(source); 1684 } 1685 public RecentTaskInfo[] newArray(int size) { 1686 return new RecentTaskInfo[size]; 1687 } 1688 }; 1689 1690 private RecentTaskInfo(Parcel source) { 1691 readFromParcel(source); 1692 } 1693 } 1694 1695 /** 1696 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1697 * that have set their 1698 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1699 */ 1700 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1701 1702 /** 1703 * Provides a list that does not contain any 1704 * recent tasks that currently are not available to the user. 1705 */ 1706 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1707 1708 /** 1709 * Provides a list that contains recent tasks for all 1710 * profiles of a user. 1711 * @hide 1712 */ 1713 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1714 1715 /** 1716 * Ignores all tasks that are on the home stack. 1717 * @hide 1718 */ 1719 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1720 1721 /** 1722 * Ignores the top task in the docked stack. 1723 * @hide 1724 */ 1725 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1726 1727 /** 1728 * Ignores all tasks that are on the pinned stack. 1729 * @hide 1730 */ 1731 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1732 1733 /** 1734 * <p></p>Return a list of the tasks that the user has recently launched, with 1735 * the most recent being first and older ones after in order. 1736 * 1737 * <p><b>Note: this method is only intended for debugging and presenting 1738 * task management user interfaces</b>. This should never be used for 1739 * core logic in an application, such as deciding between different 1740 * behaviors based on the information found here. Such uses are 1741 * <em>not</em> supported, and will likely break in the future. For 1742 * example, if multiple applications can be actively running at the 1743 * same time, assumptions made about the meaning of the data here for 1744 * purposes of control flow will be incorrect.</p> 1745 * 1746 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1747 * no longer available to third party applications: the introduction of 1748 * document-centric recents means 1749 * it can leak personal information to the caller. For backwards compatibility, 1750 * it will still return a small subset of its data: at least the caller's 1751 * own tasks (though see {@link #getAppTasks()} for the correct supported 1752 * way to retrieve that information), and possibly some other tasks 1753 * such as home that are known to not be sensitive. 1754 * 1755 * @param maxNum The maximum number of entries to return in the list. The 1756 * actual number returned may be smaller, depending on how many tasks the 1757 * user has started and the maximum number the system can remember. 1758 * @param flags Information about what to return. May be any combination 1759 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1760 * 1761 * @return Returns a list of RecentTaskInfo records describing each of 1762 * the recent tasks. 1763 */ 1764 @Deprecated 1765 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1766 throws SecurityException { 1767 try { 1768 return getService().getRecentTasks(maxNum, 1769 flags, UserHandle.myUserId()).getList(); 1770 } catch (RemoteException e) { 1771 throw e.rethrowFromSystemServer(); 1772 } 1773 } 1774 1775 /** 1776 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1777 * specific user. It requires holding 1778 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1779 * @param maxNum The maximum number of entries to return in the list. The 1780 * actual number returned may be smaller, depending on how many tasks the 1781 * user has started and the maximum number the system can remember. 1782 * @param flags Information about what to return. May be any combination 1783 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1784 * 1785 * @return Returns a list of RecentTaskInfo records describing each of 1786 * the recent tasks. Most recently activated tasks go first. 1787 * 1788 * @hide 1789 */ 1790 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1791 throws SecurityException { 1792 try { 1793 return getService().getRecentTasks(maxNum, 1794 flags, userId).getList(); 1795 } catch (RemoteException e) { 1796 throw e.rethrowFromSystemServer(); 1797 } 1798 } 1799 1800 /** 1801 * Information you can retrieve about a particular task that is currently 1802 * "running" in the system. Note that a running task does not mean the 1803 * given task actually has a process it is actively running in; it simply 1804 * means that the user has gone to it and never closed it, but currently 1805 * the system may have killed its process and is only holding on to its 1806 * last state in order to restart it when the user returns. 1807 */ 1808 public static class RunningTaskInfo implements Parcelable { 1809 /** 1810 * A unique identifier for this task. 1811 */ 1812 public int id; 1813 1814 /** 1815 * The stack that currently contains this task. 1816 * @hide 1817 */ 1818 public int stackId; 1819 1820 /** 1821 * The component launched as the first activity in the task. This can 1822 * be considered the "application" of this task. 1823 */ 1824 public ComponentName baseActivity; 1825 1826 /** 1827 * The activity component at the top of the history stack of the task. 1828 * This is what the user is currently doing. 1829 */ 1830 public ComponentName topActivity; 1831 1832 /** 1833 * Thumbnail representation of the task's current state. Currently 1834 * always null. 1835 */ 1836 public Bitmap thumbnail; 1837 1838 /** 1839 * Description of the task's current state. 1840 */ 1841 public CharSequence description; 1842 1843 /** 1844 * Number of activities in this task. 1845 */ 1846 public int numActivities; 1847 1848 /** 1849 * Number of activities that are currently running (not stopped 1850 * and persisted) in this task. 1851 */ 1852 public int numRunning; 1853 1854 /** 1855 * Last time task was run. For sorting. 1856 * @hide 1857 */ 1858 public long lastActiveTime; 1859 1860 /** 1861 * True if the task can go in the docked stack. 1862 * @hide 1863 */ 1864 public boolean supportsSplitScreenMultiWindow; 1865 1866 /** 1867 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1868 * @hide 1869 */ 1870 public int resizeMode; 1871 1872 public RunningTaskInfo() { 1873 } 1874 1875 public int describeContents() { 1876 return 0; 1877 } 1878 1879 public void writeToParcel(Parcel dest, int flags) { 1880 dest.writeInt(id); 1881 dest.writeInt(stackId); 1882 ComponentName.writeToParcel(baseActivity, dest); 1883 ComponentName.writeToParcel(topActivity, dest); 1884 if (thumbnail != null) { 1885 dest.writeInt(1); 1886 thumbnail.writeToParcel(dest, 0); 1887 } else { 1888 dest.writeInt(0); 1889 } 1890 TextUtils.writeToParcel(description, dest, 1891 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1892 dest.writeInt(numActivities); 1893 dest.writeInt(numRunning); 1894 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1895 dest.writeInt(resizeMode); 1896 } 1897 1898 public void readFromParcel(Parcel source) { 1899 id = source.readInt(); 1900 stackId = source.readInt(); 1901 baseActivity = ComponentName.readFromParcel(source); 1902 topActivity = ComponentName.readFromParcel(source); 1903 if (source.readInt() != 0) { 1904 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1905 } else { 1906 thumbnail = null; 1907 } 1908 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1909 numActivities = source.readInt(); 1910 numRunning = source.readInt(); 1911 supportsSplitScreenMultiWindow = source.readInt() != 0; 1912 resizeMode = source.readInt(); 1913 } 1914 1915 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1916 public RunningTaskInfo createFromParcel(Parcel source) { 1917 return new RunningTaskInfo(source); 1918 } 1919 public RunningTaskInfo[] newArray(int size) { 1920 return new RunningTaskInfo[size]; 1921 } 1922 }; 1923 1924 private RunningTaskInfo(Parcel source) { 1925 readFromParcel(source); 1926 } 1927 } 1928 1929 /** 1930 * Get the list of tasks associated with the calling application. 1931 * 1932 * @return The list of tasks associated with the application making this call. 1933 * @throws SecurityException 1934 */ 1935 public List<ActivityManager.AppTask> getAppTasks() { 1936 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1937 List<IBinder> appTasks; 1938 try { 1939 appTasks = getService().getAppTasks(mContext.getPackageName()); 1940 } catch (RemoteException e) { 1941 throw e.rethrowFromSystemServer(); 1942 } 1943 int numAppTasks = appTasks.size(); 1944 for (int i = 0; i < numAppTasks; i++) { 1945 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1946 } 1947 return tasks; 1948 } 1949 1950 /** 1951 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1952 * with {@link #addAppTask}. 1953 */ 1954 public Size getAppTaskThumbnailSize() { 1955 synchronized (this) { 1956 ensureAppTaskThumbnailSizeLocked(); 1957 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1958 } 1959 } 1960 1961 private void ensureAppTaskThumbnailSizeLocked() { 1962 if (mAppTaskThumbnailSize == null) { 1963 try { 1964 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1965 } catch (RemoteException e) { 1966 throw e.rethrowFromSystemServer(); 1967 } 1968 } 1969 } 1970 1971 /** 1972 * Add a new {@link AppTask} for the calling application. This will create a new 1973 * recents entry that is added to the <b>end</b> of all existing recents. 1974 * 1975 * @param activity The activity that is adding the entry. This is used to help determine 1976 * the context that the new recents entry will be in. 1977 * @param intent The Intent that describes the recents entry. This is the same Intent that 1978 * you would have used to launch the activity for it. In generally you will want to set 1979 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1980 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1981 * entry will exist without an activity, so it doesn't make sense to not retain it when 1982 * its activity disappears. The given Intent here also must have an explicit ComponentName 1983 * set on it. 1984 * @param description Optional additional description information. 1985 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1986 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1987 * recreated in your process, probably in a way you don't like, before the recents entry 1988 * is added. 1989 * 1990 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1991 * most likely cause of failure is that there is no more room for more tasks for your app. 1992 */ 1993 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1994 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1995 Point size; 1996 synchronized (this) { 1997 ensureAppTaskThumbnailSizeLocked(); 1998 size = mAppTaskThumbnailSize; 1999 } 2000 final int tw = thumbnail.getWidth(); 2001 final int th = thumbnail.getHeight(); 2002 if (tw != size.x || th != size.y) { 2003 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2004 2005 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2006 float scale; 2007 float dx = 0, dy = 0; 2008 if (tw * size.x > size.y * th) { 2009 scale = (float) size.x / (float) th; 2010 dx = (size.y - tw * scale) * 0.5f; 2011 } else { 2012 scale = (float) size.y / (float) tw; 2013 dy = (size.x - th * scale) * 0.5f; 2014 } 2015 Matrix matrix = new Matrix(); 2016 matrix.setScale(scale, scale); 2017 matrix.postTranslate((int) (dx + 0.5f), 0); 2018 2019 Canvas canvas = new Canvas(bm); 2020 canvas.drawBitmap(thumbnail, matrix, null); 2021 canvas.setBitmap(null); 2022 2023 thumbnail = bm; 2024 } 2025 if (description == null) { 2026 description = new TaskDescription(); 2027 } 2028 try { 2029 return getService().addAppTask(activity.getActivityToken(), 2030 intent, description, thumbnail); 2031 } catch (RemoteException e) { 2032 throw e.rethrowFromSystemServer(); 2033 } 2034 } 2035 2036 /** 2037 * Return a list of the tasks that are currently running, with 2038 * the most recent being first and older ones after in order. Note that 2039 * "running" does not mean any of the task's code is currently loaded or 2040 * activity -- the task may have been frozen by the system, so that it 2041 * can be restarted in its previous state when next brought to the 2042 * foreground. 2043 * 2044 * <p><b>Note: this method is only intended for debugging and presenting 2045 * task management user interfaces</b>. This should never be used for 2046 * core logic in an application, such as deciding between different 2047 * behaviors based on the information found here. Such uses are 2048 * <em>not</em> supported, and will likely break in the future. For 2049 * example, if multiple applications can be actively running at the 2050 * same time, assumptions made about the meaning of the data here for 2051 * purposes of control flow will be incorrect.</p> 2052 * 2053 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2054 * is no longer available to third party 2055 * applications: the introduction of document-centric recents means 2056 * it can leak person information to the caller. For backwards compatibility, 2057 * it will still retu rn a small subset of its data: at least the caller's 2058 * own tasks, and possibly some other tasks 2059 * such as home that are known to not be sensitive. 2060 * 2061 * @param maxNum The maximum number of entries to return in the list. The 2062 * actual number returned may be smaller, depending on how many tasks the 2063 * user has started. 2064 * 2065 * @return Returns a list of RunningTaskInfo records describing each of 2066 * the running tasks. 2067 */ 2068 @Deprecated 2069 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2070 throws SecurityException { 2071 try { 2072 return getService().getTasks(maxNum, 0); 2073 } catch (RemoteException e) { 2074 throw e.rethrowFromSystemServer(); 2075 } 2076 } 2077 2078 /** 2079 * Completely remove the given task. 2080 * 2081 * @param taskId Identifier of the task to be removed. 2082 * @return Returns true if the given task was found and removed. 2083 * 2084 * @hide 2085 */ 2086 public boolean removeTask(int taskId) throws SecurityException { 2087 try { 2088 return getService().removeTask(taskId); 2089 } catch (RemoteException e) { 2090 throw e.rethrowFromSystemServer(); 2091 } 2092 } 2093 2094 /** 2095 * Metadata related to the {@link TaskThumbnail}. 2096 * 2097 * @hide 2098 */ 2099 public static class TaskThumbnailInfo implements Parcelable { 2100 /** @hide */ 2101 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2102 private static final String ATTR_TASK_WIDTH = 2103 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2104 private static final String ATTR_TASK_HEIGHT = 2105 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2106 private static final String ATTR_SCREEN_ORIENTATION = 2107 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2108 2109 public int taskWidth; 2110 public int taskHeight; 2111 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2112 2113 public TaskThumbnailInfo() { 2114 // Do nothing 2115 } 2116 2117 private TaskThumbnailInfo(Parcel source) { 2118 readFromParcel(source); 2119 } 2120 2121 /** 2122 * Resets this info state to the initial state. 2123 * @hide 2124 */ 2125 public void reset() { 2126 taskWidth = 0; 2127 taskHeight = 0; 2128 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2129 } 2130 2131 /** 2132 * Copies from another ThumbnailInfo. 2133 */ 2134 public void copyFrom(TaskThumbnailInfo o) { 2135 taskWidth = o.taskWidth; 2136 taskHeight = o.taskHeight; 2137 screenOrientation = o.screenOrientation; 2138 } 2139 2140 /** @hide */ 2141 public void saveToXml(XmlSerializer out) throws IOException { 2142 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2143 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2144 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2145 } 2146 2147 /** @hide */ 2148 public void restoreFromXml(String attrName, String attrValue) { 2149 if (ATTR_TASK_WIDTH.equals(attrName)) { 2150 taskWidth = Integer.parseInt(attrValue); 2151 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2152 taskHeight = Integer.parseInt(attrValue); 2153 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2154 screenOrientation = Integer.parseInt(attrValue); 2155 } 2156 } 2157 2158 public int describeContents() { 2159 return 0; 2160 } 2161 2162 public void writeToParcel(Parcel dest, int flags) { 2163 dest.writeInt(taskWidth); 2164 dest.writeInt(taskHeight); 2165 dest.writeInt(screenOrientation); 2166 } 2167 2168 public void readFromParcel(Parcel source) { 2169 taskWidth = source.readInt(); 2170 taskHeight = source.readInt(); 2171 screenOrientation = source.readInt(); 2172 } 2173 2174 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2175 public TaskThumbnailInfo createFromParcel(Parcel source) { 2176 return new TaskThumbnailInfo(source); 2177 } 2178 public TaskThumbnailInfo[] newArray(int size) { 2179 return new TaskThumbnailInfo[size]; 2180 } 2181 }; 2182 } 2183 2184 /** @hide */ 2185 public static class TaskThumbnail implements Parcelable { 2186 public Bitmap mainThumbnail; 2187 public ParcelFileDescriptor thumbnailFileDescriptor; 2188 public TaskThumbnailInfo thumbnailInfo; 2189 2190 public TaskThumbnail() { 2191 } 2192 2193 private TaskThumbnail(Parcel source) { 2194 readFromParcel(source); 2195 } 2196 2197 public int describeContents() { 2198 if (thumbnailFileDescriptor != null) { 2199 return thumbnailFileDescriptor.describeContents(); 2200 } 2201 return 0; 2202 } 2203 2204 public void writeToParcel(Parcel dest, int flags) { 2205 if (mainThumbnail != null) { 2206 dest.writeInt(1); 2207 mainThumbnail.writeToParcel(dest, flags); 2208 } else { 2209 dest.writeInt(0); 2210 } 2211 if (thumbnailFileDescriptor != null) { 2212 dest.writeInt(1); 2213 thumbnailFileDescriptor.writeToParcel(dest, flags); 2214 } else { 2215 dest.writeInt(0); 2216 } 2217 if (thumbnailInfo != null) { 2218 dest.writeInt(1); 2219 thumbnailInfo.writeToParcel(dest, flags); 2220 } else { 2221 dest.writeInt(0); 2222 } 2223 } 2224 2225 public void readFromParcel(Parcel source) { 2226 if (source.readInt() != 0) { 2227 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2228 } else { 2229 mainThumbnail = null; 2230 } 2231 if (source.readInt() != 0) { 2232 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2233 } else { 2234 thumbnailFileDescriptor = null; 2235 } 2236 if (source.readInt() != 0) { 2237 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2238 } else { 2239 thumbnailInfo = null; 2240 } 2241 } 2242 2243 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2244 public TaskThumbnail createFromParcel(Parcel source) { 2245 return new TaskThumbnail(source); 2246 } 2247 public TaskThumbnail[] newArray(int size) { 2248 return new TaskThumbnail[size]; 2249 } 2250 }; 2251 } 2252 2253 /** 2254 * Represents a task snapshot. 2255 * @hide 2256 */ 2257 public static class TaskSnapshot implements Parcelable { 2258 2259 private final GraphicBuffer mSnapshot; 2260 private final int mOrientation; 2261 private final Rect mContentInsets; 2262 private final boolean mReducedResolution; 2263 private final float mScale; 2264 2265 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2266 boolean reducedResolution, float scale) { 2267 mSnapshot = snapshot; 2268 mOrientation = orientation; 2269 mContentInsets = new Rect(contentInsets); 2270 mReducedResolution = reducedResolution; 2271 mScale = scale; 2272 } 2273 2274 private TaskSnapshot(Parcel source) { 2275 mSnapshot = source.readParcelable(null /* classLoader */); 2276 mOrientation = source.readInt(); 2277 mContentInsets = source.readParcelable(null /* classLoader */); 2278 mReducedResolution = source.readBoolean(); 2279 mScale = source.readFloat(); 2280 } 2281 2282 /** 2283 * @return The graphic buffer representing the screenshot. 2284 */ 2285 public GraphicBuffer getSnapshot() { 2286 return mSnapshot; 2287 } 2288 2289 /** 2290 * @return The screen orientation the screenshot was taken in. 2291 */ 2292 public int getOrientation() { 2293 return mOrientation; 2294 } 2295 2296 /** 2297 * @return The system/content insets on the snapshot. These can be clipped off in order to 2298 * remove any areas behind system bars in the snapshot. 2299 */ 2300 public Rect getContentInsets() { 2301 return mContentInsets; 2302 } 2303 2304 /** 2305 * @return Whether this snapshot is a down-sampled version of the full resolution. 2306 */ 2307 public boolean isReducedResolution() { 2308 return mReducedResolution; 2309 } 2310 2311 /** 2312 * @return The scale this snapshot was taken in. 2313 */ 2314 public float getScale() { 2315 return mScale; 2316 } 2317 2318 @Override 2319 public int describeContents() { 2320 return 0; 2321 } 2322 2323 @Override 2324 public void writeToParcel(Parcel dest, int flags) { 2325 dest.writeParcelable(mSnapshot, 0); 2326 dest.writeInt(mOrientation); 2327 dest.writeParcelable(mContentInsets, 0); 2328 dest.writeBoolean(mReducedResolution); 2329 dest.writeFloat(mScale); 2330 } 2331 2332 @Override 2333 public String toString() { 2334 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2335 + " mContentInsets=" + mContentInsets.toShortString() 2336 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2337 } 2338 2339 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2340 public TaskSnapshot createFromParcel(Parcel source) { 2341 return new TaskSnapshot(source); 2342 } 2343 public TaskSnapshot[] newArray(int size) { 2344 return new TaskSnapshot[size]; 2345 } 2346 }; 2347 } 2348 2349 /** @hide */ 2350 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2351 try { 2352 return getService().getTaskThumbnail(id); 2353 } catch (RemoteException e) { 2354 throw e.rethrowFromSystemServer(); 2355 } 2356 } 2357 2358 /** @hide */ 2359 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2360 MOVE_TASK_WITH_HOME, 2361 MOVE_TASK_NO_USER_ACTION, 2362 }) 2363 @Retention(RetentionPolicy.SOURCE) 2364 public @interface MoveTaskFlags {} 2365 2366 /** 2367 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2368 * activity along with the task, so it is positioned immediately behind 2369 * the task. 2370 */ 2371 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2372 2373 /** 2374 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2375 * user-instigated action, so the current activity will not receive a 2376 * hint that the user is leaving. 2377 */ 2378 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2379 2380 /** 2381 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2382 * with a null options argument. 2383 * 2384 * @param taskId The identifier of the task to be moved, as found in 2385 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2386 * @param flags Additional operational flags. 2387 */ 2388 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2389 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2390 moveTaskToFront(taskId, flags, null); 2391 } 2392 2393 /** 2394 * Ask that the task associated with a given task ID be moved to the 2395 * front of the stack, so it is now visible to the user. 2396 * 2397 * @param taskId The identifier of the task to be moved, as found in 2398 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2399 * @param flags Additional operational flags. 2400 * @param options Additional options for the operation, either null or 2401 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2402 * Context.startActivity(Intent, Bundle)}. 2403 */ 2404 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2405 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2406 try { 2407 getService().moveTaskToFront(taskId, flags, options); 2408 } catch (RemoteException e) { 2409 throw e.rethrowFromSystemServer(); 2410 } 2411 } 2412 2413 /** 2414 * Information you can retrieve about a particular Service that is 2415 * currently running in the system. 2416 */ 2417 public static class RunningServiceInfo implements Parcelable { 2418 /** 2419 * The service component. 2420 */ 2421 public ComponentName service; 2422 2423 /** 2424 * If non-zero, this is the process the service is running in. 2425 */ 2426 public int pid; 2427 2428 /** 2429 * The UID that owns this service. 2430 */ 2431 public int uid; 2432 2433 /** 2434 * The name of the process this service runs in. 2435 */ 2436 public String process; 2437 2438 /** 2439 * Set to true if the service has asked to run as a foreground process. 2440 */ 2441 public boolean foreground; 2442 2443 /** 2444 * The time when the service was first made active, either by someone 2445 * starting or binding to it. This 2446 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2447 */ 2448 public long activeSince; 2449 2450 /** 2451 * Set to true if this service has been explicitly started. 2452 */ 2453 public boolean started; 2454 2455 /** 2456 * Number of clients connected to the service. 2457 */ 2458 public int clientCount; 2459 2460 /** 2461 * Number of times the service's process has crashed while the service 2462 * is running. 2463 */ 2464 public int crashCount; 2465 2466 /** 2467 * The time when there was last activity in the service (either 2468 * explicit requests to start it or clients binding to it). This 2469 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2470 */ 2471 public long lastActivityTime; 2472 2473 /** 2474 * If non-zero, this service is not currently running, but scheduled to 2475 * restart at the given time. 2476 */ 2477 public long restarting; 2478 2479 /** 2480 * Bit for {@link #flags}: set if this service has been 2481 * explicitly started. 2482 */ 2483 public static final int FLAG_STARTED = 1<<0; 2484 2485 /** 2486 * Bit for {@link #flags}: set if the service has asked to 2487 * run as a foreground process. 2488 */ 2489 public static final int FLAG_FOREGROUND = 1<<1; 2490 2491 /** 2492 * Bit for {@link #flags}: set if the service is running in a 2493 * core system process. 2494 */ 2495 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2496 2497 /** 2498 * Bit for {@link #flags}: set if the service is running in a 2499 * persistent process. 2500 */ 2501 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2502 2503 /** 2504 * Running flags. 2505 */ 2506 public int flags; 2507 2508 /** 2509 * For special services that are bound to by system code, this is 2510 * the package that holds the binding. 2511 */ 2512 public String clientPackage; 2513 2514 /** 2515 * For special services that are bound to by system code, this is 2516 * a string resource providing a user-visible label for who the 2517 * client is. 2518 */ 2519 public int clientLabel; 2520 2521 public RunningServiceInfo() { 2522 } 2523 2524 public int describeContents() { 2525 return 0; 2526 } 2527 2528 public void writeToParcel(Parcel dest, int flags) { 2529 ComponentName.writeToParcel(service, dest); 2530 dest.writeInt(pid); 2531 dest.writeInt(uid); 2532 dest.writeString(process); 2533 dest.writeInt(foreground ? 1 : 0); 2534 dest.writeLong(activeSince); 2535 dest.writeInt(started ? 1 : 0); 2536 dest.writeInt(clientCount); 2537 dest.writeInt(crashCount); 2538 dest.writeLong(lastActivityTime); 2539 dest.writeLong(restarting); 2540 dest.writeInt(this.flags); 2541 dest.writeString(clientPackage); 2542 dest.writeInt(clientLabel); 2543 } 2544 2545 public void readFromParcel(Parcel source) { 2546 service = ComponentName.readFromParcel(source); 2547 pid = source.readInt(); 2548 uid = source.readInt(); 2549 process = source.readString(); 2550 foreground = source.readInt() != 0; 2551 activeSince = source.readLong(); 2552 started = source.readInt() != 0; 2553 clientCount = source.readInt(); 2554 crashCount = source.readInt(); 2555 lastActivityTime = source.readLong(); 2556 restarting = source.readLong(); 2557 flags = source.readInt(); 2558 clientPackage = source.readString(); 2559 clientLabel = source.readInt(); 2560 } 2561 2562 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2563 public RunningServiceInfo createFromParcel(Parcel source) { 2564 return new RunningServiceInfo(source); 2565 } 2566 public RunningServiceInfo[] newArray(int size) { 2567 return new RunningServiceInfo[size]; 2568 } 2569 }; 2570 2571 private RunningServiceInfo(Parcel source) { 2572 readFromParcel(source); 2573 } 2574 } 2575 2576 /** 2577 * Return a list of the services that are currently running. 2578 * 2579 * <p><b>Note: this method is only intended for debugging or implementing 2580 * service management type user interfaces.</b></p> 2581 * 2582 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2583 * is no longer available to third party applications. For backwards compatibility, 2584 * it will still return the caller's own services. 2585 * 2586 * @param maxNum The maximum number of entries to return in the list. The 2587 * actual number returned may be smaller, depending on how many services 2588 * are running. 2589 * 2590 * @return Returns a list of RunningServiceInfo records describing each of 2591 * the running tasks. 2592 */ 2593 @Deprecated 2594 public List<RunningServiceInfo> getRunningServices(int maxNum) 2595 throws SecurityException { 2596 try { 2597 return getService() 2598 .getServices(maxNum, 0); 2599 } catch (RemoteException e) { 2600 throw e.rethrowFromSystemServer(); 2601 } 2602 } 2603 2604 /** 2605 * Returns a PendingIntent you can start to show a control panel for the 2606 * given running service. If the service does not have a control panel, 2607 * null is returned. 2608 */ 2609 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2610 throws SecurityException { 2611 try { 2612 return getService() 2613 .getRunningServiceControlPanel(service); 2614 } catch (RemoteException e) { 2615 throw e.rethrowFromSystemServer(); 2616 } 2617 } 2618 2619 /** 2620 * Information you can retrieve about the available memory through 2621 * {@link ActivityManager#getMemoryInfo}. 2622 */ 2623 public static class MemoryInfo implements Parcelable { 2624 /** 2625 * The available memory on the system. This number should not 2626 * be considered absolute: due to the nature of the kernel, a significant 2627 * portion of this memory is actually in use and needed for the overall 2628 * system to run well. 2629 */ 2630 public long availMem; 2631 2632 /** 2633 * The total memory accessible by the kernel. This is basically the 2634 * RAM size of the device, not including below-kernel fixed allocations 2635 * like DMA buffers, RAM for the baseband CPU, etc. 2636 */ 2637 public long totalMem; 2638 2639 /** 2640 * The threshold of {@link #availMem} at which we consider memory to be 2641 * low and start killing background services and other non-extraneous 2642 * processes. 2643 */ 2644 public long threshold; 2645 2646 /** 2647 * Set to true if the system considers itself to currently be in a low 2648 * memory situation. 2649 */ 2650 public boolean lowMemory; 2651 2652 /** @hide */ 2653 public long hiddenAppThreshold; 2654 /** @hide */ 2655 public long secondaryServerThreshold; 2656 /** @hide */ 2657 public long visibleAppThreshold; 2658 /** @hide */ 2659 public long foregroundAppThreshold; 2660 2661 public MemoryInfo() { 2662 } 2663 2664 public int describeContents() { 2665 return 0; 2666 } 2667 2668 public void writeToParcel(Parcel dest, int flags) { 2669 dest.writeLong(availMem); 2670 dest.writeLong(totalMem); 2671 dest.writeLong(threshold); 2672 dest.writeInt(lowMemory ? 1 : 0); 2673 dest.writeLong(hiddenAppThreshold); 2674 dest.writeLong(secondaryServerThreshold); 2675 dest.writeLong(visibleAppThreshold); 2676 dest.writeLong(foregroundAppThreshold); 2677 } 2678 2679 public void readFromParcel(Parcel source) { 2680 availMem = source.readLong(); 2681 totalMem = source.readLong(); 2682 threshold = source.readLong(); 2683 lowMemory = source.readInt() != 0; 2684 hiddenAppThreshold = source.readLong(); 2685 secondaryServerThreshold = source.readLong(); 2686 visibleAppThreshold = source.readLong(); 2687 foregroundAppThreshold = source.readLong(); 2688 } 2689 2690 public static final Creator<MemoryInfo> CREATOR 2691 = new Creator<MemoryInfo>() { 2692 public MemoryInfo createFromParcel(Parcel source) { 2693 return new MemoryInfo(source); 2694 } 2695 public MemoryInfo[] newArray(int size) { 2696 return new MemoryInfo[size]; 2697 } 2698 }; 2699 2700 private MemoryInfo(Parcel source) { 2701 readFromParcel(source); 2702 } 2703 } 2704 2705 /** 2706 * Return general information about the memory state of the system. This 2707 * can be used to help decide how to manage your own memory, though note 2708 * that polling is not recommended and 2709 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2710 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2711 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2712 * level of your process as needed, which gives a better hint for how to 2713 * manage its memory. 2714 */ 2715 public void getMemoryInfo(MemoryInfo outInfo) { 2716 try { 2717 getService().getMemoryInfo(outInfo); 2718 } catch (RemoteException e) { 2719 throw e.rethrowFromSystemServer(); 2720 } 2721 } 2722 2723 /** 2724 * Information you can retrieve about an ActivityStack in the system. 2725 * @hide 2726 */ 2727 public static class StackInfo implements Parcelable { 2728 public int stackId; 2729 public Rect bounds = new Rect(); 2730 public int[] taskIds; 2731 public String[] taskNames; 2732 public Rect[] taskBounds; 2733 public int[] taskUserIds; 2734 public ComponentName topActivity; 2735 public int displayId; 2736 public int userId; 2737 public boolean visible; 2738 // Index of the stack in the display's stack list, can be used for comparison of stack order 2739 public int position; 2740 2741 @Override 2742 public int describeContents() { 2743 return 0; 2744 } 2745 2746 @Override 2747 public void writeToParcel(Parcel dest, int flags) { 2748 dest.writeInt(stackId); 2749 dest.writeInt(bounds.left); 2750 dest.writeInt(bounds.top); 2751 dest.writeInt(bounds.right); 2752 dest.writeInt(bounds.bottom); 2753 dest.writeIntArray(taskIds); 2754 dest.writeStringArray(taskNames); 2755 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2756 dest.writeInt(boundsCount); 2757 for (int i = 0; i < boundsCount; i++) { 2758 dest.writeInt(taskBounds[i].left); 2759 dest.writeInt(taskBounds[i].top); 2760 dest.writeInt(taskBounds[i].right); 2761 dest.writeInt(taskBounds[i].bottom); 2762 } 2763 dest.writeIntArray(taskUserIds); 2764 dest.writeInt(displayId); 2765 dest.writeInt(userId); 2766 dest.writeInt(visible ? 1 : 0); 2767 dest.writeInt(position); 2768 if (topActivity != null) { 2769 dest.writeInt(1); 2770 topActivity.writeToParcel(dest, 0); 2771 } else { 2772 dest.writeInt(0); 2773 } 2774 } 2775 2776 public void readFromParcel(Parcel source) { 2777 stackId = source.readInt(); 2778 bounds = new Rect( 2779 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2780 taskIds = source.createIntArray(); 2781 taskNames = source.createStringArray(); 2782 final int boundsCount = source.readInt(); 2783 if (boundsCount > 0) { 2784 taskBounds = new Rect[boundsCount]; 2785 for (int i = 0; i < boundsCount; i++) { 2786 taskBounds[i] = new Rect(); 2787 taskBounds[i].set( 2788 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2789 } 2790 } else { 2791 taskBounds = null; 2792 } 2793 taskUserIds = source.createIntArray(); 2794 displayId = source.readInt(); 2795 userId = source.readInt(); 2796 visible = source.readInt() > 0; 2797 position = source.readInt(); 2798 if (source.readInt() > 0) { 2799 topActivity = ComponentName.readFromParcel(source); 2800 } 2801 } 2802 2803 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2804 @Override 2805 public StackInfo createFromParcel(Parcel source) { 2806 return new StackInfo(source); 2807 } 2808 @Override 2809 public StackInfo[] newArray(int size) { 2810 return new StackInfo[size]; 2811 } 2812 }; 2813 2814 public StackInfo() { 2815 } 2816 2817 private StackInfo(Parcel source) { 2818 readFromParcel(source); 2819 } 2820 2821 public String toString(String prefix) { 2822 StringBuilder sb = new StringBuilder(256); 2823 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2824 sb.append(" bounds="); sb.append(bounds.toShortString()); 2825 sb.append(" displayId="); sb.append(displayId); 2826 sb.append(" userId="); sb.append(userId); 2827 sb.append("\n"); 2828 prefix = prefix + " "; 2829 for (int i = 0; i < taskIds.length; ++i) { 2830 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2831 sb.append(": "); sb.append(taskNames[i]); 2832 if (taskBounds != null) { 2833 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2834 } 2835 sb.append(" userId=").append(taskUserIds[i]); 2836 sb.append(" visible=").append(visible); 2837 if (topActivity != null) { 2838 sb.append(" topActivity=").append(topActivity); 2839 } 2840 sb.append("\n"); 2841 } 2842 return sb.toString(); 2843 } 2844 2845 @Override 2846 public String toString() { 2847 return toString(""); 2848 } 2849 } 2850 2851 /** 2852 * @hide 2853 */ 2854 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2855 try { 2856 return getService().clearApplicationUserData(packageName, 2857 observer, UserHandle.myUserId()); 2858 } catch (RemoteException e) { 2859 throw e.rethrowFromSystemServer(); 2860 } 2861 } 2862 2863 /** 2864 * Permits an application to erase its own data from disk. This is equivalent to 2865 * the user choosing to clear the app's data from within the device settings UI. It 2866 * erases all dynamic data associated with the app -- its private data and data in its 2867 * private area on external storage -- but does not remove the installed application 2868 * itself, nor any OBB files. 2869 * 2870 * @return {@code true} if the application successfully requested that the application's 2871 * data be erased; {@code false} otherwise. 2872 */ 2873 public boolean clearApplicationUserData() { 2874 return clearApplicationUserData(mContext.getPackageName(), null); 2875 } 2876 2877 2878 /** 2879 * Permits an application to get the persistent URI permissions granted to another. 2880 * 2881 * <p>Typically called by Settings. 2882 * 2883 * @param packageName application to look for the granted permissions 2884 * @return list of granted URI permissions 2885 * 2886 * @hide 2887 */ 2888 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2889 try { 2890 return getService().getGrantedUriPermissions(packageName, 2891 UserHandle.myUserId()); 2892 } catch (RemoteException e) { 2893 throw e.rethrowFromSystemServer(); 2894 } 2895 } 2896 2897 /** 2898 * Permits an application to clear the persistent URI permissions granted to another. 2899 * 2900 * <p>Typically called by Settings. 2901 * 2902 * @param packageName application to clear its granted permissions 2903 * 2904 * @hide 2905 */ 2906 public void clearGrantedUriPermissions(String packageName) { 2907 try { 2908 getService().clearGrantedUriPermissions(packageName, 2909 UserHandle.myUserId()); 2910 } catch (RemoteException e) { 2911 throw e.rethrowFromSystemServer(); 2912 } 2913 } 2914 2915 /** 2916 * Information you can retrieve about any processes that are in an error condition. 2917 */ 2918 public static class ProcessErrorStateInfo implements Parcelable { 2919 /** 2920 * Condition codes 2921 */ 2922 public static final int NO_ERROR = 0; 2923 public static final int CRASHED = 1; 2924 public static final int NOT_RESPONDING = 2; 2925 2926 /** 2927 * The condition that the process is in. 2928 */ 2929 public int condition; 2930 2931 /** 2932 * The process name in which the crash or error occurred. 2933 */ 2934 public String processName; 2935 2936 /** 2937 * The pid of this process; 0 if none 2938 */ 2939 public int pid; 2940 2941 /** 2942 * The kernel user-ID that has been assigned to this process; 2943 * currently this is not a unique ID (multiple applications can have 2944 * the same uid). 2945 */ 2946 public int uid; 2947 2948 /** 2949 * The activity name associated with the error, if known. May be null. 2950 */ 2951 public String tag; 2952 2953 /** 2954 * A short message describing the error condition. 2955 */ 2956 public String shortMsg; 2957 2958 /** 2959 * A long message describing the error condition. 2960 */ 2961 public String longMsg; 2962 2963 /** 2964 * The stack trace where the error originated. May be null. 2965 */ 2966 public String stackTrace; 2967 2968 /** 2969 * to be deprecated: This value will always be null. 2970 */ 2971 public byte[] crashData = null; 2972 2973 public ProcessErrorStateInfo() { 2974 } 2975 2976 @Override 2977 public int describeContents() { 2978 return 0; 2979 } 2980 2981 @Override 2982 public void writeToParcel(Parcel dest, int flags) { 2983 dest.writeInt(condition); 2984 dest.writeString(processName); 2985 dest.writeInt(pid); 2986 dest.writeInt(uid); 2987 dest.writeString(tag); 2988 dest.writeString(shortMsg); 2989 dest.writeString(longMsg); 2990 dest.writeString(stackTrace); 2991 } 2992 2993 public void readFromParcel(Parcel source) { 2994 condition = source.readInt(); 2995 processName = source.readString(); 2996 pid = source.readInt(); 2997 uid = source.readInt(); 2998 tag = source.readString(); 2999 shortMsg = source.readString(); 3000 longMsg = source.readString(); 3001 stackTrace = source.readString(); 3002 } 3003 3004 public static final Creator<ProcessErrorStateInfo> CREATOR = 3005 new Creator<ProcessErrorStateInfo>() { 3006 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3007 return new ProcessErrorStateInfo(source); 3008 } 3009 public ProcessErrorStateInfo[] newArray(int size) { 3010 return new ProcessErrorStateInfo[size]; 3011 } 3012 }; 3013 3014 private ProcessErrorStateInfo(Parcel source) { 3015 readFromParcel(source); 3016 } 3017 } 3018 3019 /** 3020 * Returns a list of any processes that are currently in an error condition. The result 3021 * will be null if all processes are running properly at this time. 3022 * 3023 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3024 * current error conditions (it will not return an empty list). This list ordering is not 3025 * specified. 3026 */ 3027 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3028 try { 3029 return getService().getProcessesInErrorState(); 3030 } catch (RemoteException e) { 3031 throw e.rethrowFromSystemServer(); 3032 } 3033 } 3034 3035 /** 3036 * Information you can retrieve about a running process. 3037 */ 3038 public static class RunningAppProcessInfo implements Parcelable { 3039 /** 3040 * The name of the process that this object is associated with 3041 */ 3042 public String processName; 3043 3044 /** 3045 * The pid of this process; 0 if none 3046 */ 3047 public int pid; 3048 3049 /** 3050 * The user id of this process. 3051 */ 3052 public int uid; 3053 3054 /** 3055 * All packages that have been loaded into the process. 3056 */ 3057 public String pkgList[]; 3058 3059 /** 3060 * Constant for {@link #flags}: this is an app that is unable to 3061 * correctly save its state when going to the background, 3062 * so it can not be killed while in the background. 3063 * @hide 3064 */ 3065 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3066 3067 /** 3068 * Constant for {@link #flags}: this process is associated with a 3069 * persistent system app. 3070 * @hide 3071 */ 3072 public static final int FLAG_PERSISTENT = 1<<1; 3073 3074 /** 3075 * Constant for {@link #flags}: this process is associated with a 3076 * persistent system app. 3077 * @hide 3078 */ 3079 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3080 3081 /** 3082 * Flags of information. May be any of 3083 * {@link #FLAG_CANT_SAVE_STATE}. 3084 * @hide 3085 */ 3086 public int flags; 3087 3088 /** 3089 * Last memory trim level reported to the process: corresponds to 3090 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3091 * ComponentCallbacks2.onTrimMemory(int)}. 3092 */ 3093 public int lastTrimLevel; 3094 3095 /** @hide */ 3096 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3097 IMPORTANCE_FOREGROUND, 3098 IMPORTANCE_FOREGROUND_SERVICE, 3099 IMPORTANCE_TOP_SLEEPING, 3100 IMPORTANCE_VISIBLE, 3101 IMPORTANCE_PERCEPTIBLE, 3102 IMPORTANCE_CANT_SAVE_STATE, 3103 IMPORTANCE_SERVICE, 3104 IMPORTANCE_CACHED, 3105 IMPORTANCE_GONE, 3106 }) 3107 @Retention(RetentionPolicy.SOURCE) 3108 public @interface Importance {} 3109 3110 /** 3111 * Constant for {@link #importance}: This process is running the 3112 * foreground UI; that is, it is the thing currently at the top of the screen 3113 * that the user is interacting with. 3114 */ 3115 public static final int IMPORTANCE_FOREGROUND = 100; 3116 3117 /** 3118 * Constant for {@link #importance}: This process is running a foreground 3119 * service, for example to perform music playback even while the user is 3120 * not immediately in the app. This generally indicates that the process 3121 * is doing something the user actively cares about. 3122 */ 3123 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3124 3125 /** 3126 * Constant for {@link #importance}: This process is running the foreground 3127 * UI, but the device is asleep so it is not visible to the user. This means 3128 * the user is not really aware of the process, because they can not see or 3129 * interact with it, but it is quite important because it what they expect to 3130 * return to once unlocking the device. 3131 */ 3132 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3133 3134 /** 3135 * Constant for {@link #importance}: This process is running something 3136 * that is actively visible to the user, though not in the immediate 3137 * foreground. This may be running a window that is behind the current 3138 * foreground (so paused and with its state saved, not interacting with 3139 * the user, but visible to them to some degree); it may also be running 3140 * other services under the system's control that it inconsiders important. 3141 */ 3142 public static final int IMPORTANCE_VISIBLE = 200; 3143 3144 /** 3145 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3146 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3147 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3148 * 3149 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3150 * on Android versions below {@link Build.VERSION_CODES#O}. 3151 * 3152 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3153 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3154 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3155 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3156 */ 3157 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3158 3159 /** 3160 * Constant for {@link #importance}: This process is not something the user 3161 * is directly aware of, but is otherwise perceptible to them to some degree. 3162 */ 3163 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3164 3165 /** 3166 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3167 * this wrong value 3168 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3169 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3170 * 3171 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3172 * on Android versions below {@link Build.VERSION_CODES#O}. 3173 * 3174 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3175 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3176 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3177 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3178 * 3179 * @hide 3180 */ 3181 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3182 3183 /** 3184 * Constant for {@link #importance}: This process is running an 3185 * application that can not save its state, and thus can't be killed 3186 * while in the background. 3187 * @hide 3188 */ 3189 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3190 3191 /** 3192 * Constant for {@link #importance}: This process is contains services 3193 * that should remain running. These are background services apps have 3194 * started, not something the user is aware of, so they may be killed by 3195 * the system relatively freely (though it is generally desired that they 3196 * stay running as long as they want to). 3197 */ 3198 public static final int IMPORTANCE_SERVICE = 300; 3199 3200 /** 3201 * Constant for {@link #importance}: This process process contains 3202 * cached code that is expendable, not actively running any app components 3203 * we care about. 3204 */ 3205 public static final int IMPORTANCE_CACHED = 400; 3206 3207 /** 3208 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3209 */ 3210 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3211 3212 /** 3213 * Constant for {@link #importance}: This process is empty of any 3214 * actively running code. 3215 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3216 */ 3217 @Deprecated 3218 public static final int IMPORTANCE_EMPTY = 500; 3219 3220 /** 3221 * Constant for {@link #importance}: This process does not exist. 3222 */ 3223 public static final int IMPORTANCE_GONE = 1000; 3224 3225 /** 3226 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3227 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3228 * @hide 3229 */ 3230 public static @Importance int procStateToImportance(int procState) { 3231 if (procState == PROCESS_STATE_NONEXISTENT) { 3232 return IMPORTANCE_GONE; 3233 } else if (procState >= PROCESS_STATE_HOME) { 3234 return IMPORTANCE_CACHED; 3235 } else if (procState >= PROCESS_STATE_SERVICE) { 3236 return IMPORTANCE_SERVICE; 3237 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3238 return IMPORTANCE_CANT_SAVE_STATE; 3239 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3240 return IMPORTANCE_PERCEPTIBLE; 3241 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3242 return IMPORTANCE_VISIBLE; 3243 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3244 return IMPORTANCE_TOP_SLEEPING; 3245 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3246 return IMPORTANCE_FOREGROUND_SERVICE; 3247 } else { 3248 return IMPORTANCE_FOREGROUND; 3249 } 3250 } 3251 3252 /** 3253 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3254 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3255 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3256 * client's target SDK < {@link VERSION_CODES#O}. 3257 * @hide 3258 */ 3259 public static @Importance int procStateToImportanceForClient(int procState, 3260 Context clientContext) { 3261 return procStateToImportanceForTargetSdk(procState, 3262 clientContext.getApplicationInfo().targetSdkVersion); 3263 } 3264 3265 /** 3266 * See {@link #procStateToImportanceForClient}. 3267 * @hide 3268 */ 3269 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3270 int targetSdkVersion) { 3271 final int importance = procStateToImportance(procState); 3272 3273 // For pre O apps, convert to the old, wrong values. 3274 if (targetSdkVersion < VERSION_CODES.O) { 3275 switch (importance) { 3276 case IMPORTANCE_PERCEPTIBLE: 3277 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3278 case IMPORTANCE_CANT_SAVE_STATE: 3279 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3280 } 3281 } 3282 return importance; 3283 } 3284 3285 /** @hide */ 3286 public static int importanceToProcState(@Importance int importance) { 3287 if (importance == IMPORTANCE_GONE) { 3288 return PROCESS_STATE_NONEXISTENT; 3289 } else if (importance >= IMPORTANCE_CACHED) { 3290 return PROCESS_STATE_HOME; 3291 } else if (importance >= IMPORTANCE_SERVICE) { 3292 return PROCESS_STATE_SERVICE; 3293 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3294 return PROCESS_STATE_HEAVY_WEIGHT; 3295 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3296 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3297 } else if (importance >= IMPORTANCE_VISIBLE) { 3298 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3299 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3300 return PROCESS_STATE_TOP_SLEEPING; 3301 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3302 return PROCESS_STATE_FOREGROUND_SERVICE; 3303 } else { 3304 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3305 } 3306 } 3307 3308 /** 3309 * The relative importance level that the system places on this process. 3310 * These constants are numbered so that "more important" values are 3311 * always smaller than "less important" values. 3312 */ 3313 public @Importance int importance; 3314 3315 /** 3316 * An additional ordering within a particular {@link #importance} 3317 * category, providing finer-grained information about the relative 3318 * utility of processes within a category. This number means nothing 3319 * except that a smaller values are more recently used (and thus 3320 * more important). Currently an LRU value is only maintained for 3321 * the {@link #IMPORTANCE_CACHED} category, though others may 3322 * be maintained in the future. 3323 */ 3324 public int lru; 3325 3326 /** 3327 * Constant for {@link #importanceReasonCode}: nothing special has 3328 * been specified for the reason for this level. 3329 */ 3330 public static final int REASON_UNKNOWN = 0; 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_PROVIDER_IN_USE = 1; 3340 3341 /** 3342 * Constant for {@link #importanceReasonCode}: one of the application's 3343 * content providers is being used by another process. The pid of 3344 * the client process is in {@link #importanceReasonPid} and the 3345 * target provider in this process is in 3346 * {@link #importanceReasonComponent}. 3347 */ 3348 public static final int REASON_SERVICE_IN_USE = 2; 3349 3350 /** 3351 * The reason for {@link #importance}, if any. 3352 */ 3353 public int importanceReasonCode; 3354 3355 /** 3356 * For the specified values of {@link #importanceReasonCode}, this 3357 * is the process ID of the other process that is a client of this 3358 * process. This will be 0 if no other process is using this one. 3359 */ 3360 public int importanceReasonPid; 3361 3362 /** 3363 * For the specified values of {@link #importanceReasonCode}, this 3364 * is the name of the component that is being used in this process. 3365 */ 3366 public ComponentName importanceReasonComponent; 3367 3368 /** 3369 * When {@link #importanceReasonPid} is non-0, this is the importance 3370 * of the other pid. @hide 3371 */ 3372 public int importanceReasonImportance; 3373 3374 /** 3375 * Current process state, as per PROCESS_STATE_* constants. 3376 * @hide 3377 */ 3378 public int processState; 3379 3380 public RunningAppProcessInfo() { 3381 importance = IMPORTANCE_FOREGROUND; 3382 importanceReasonCode = REASON_UNKNOWN; 3383 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3384 } 3385 3386 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3387 processName = pProcessName; 3388 pid = pPid; 3389 pkgList = pArr; 3390 } 3391 3392 public int describeContents() { 3393 return 0; 3394 } 3395 3396 public void writeToParcel(Parcel dest, int flags) { 3397 dest.writeString(processName); 3398 dest.writeInt(pid); 3399 dest.writeInt(uid); 3400 dest.writeStringArray(pkgList); 3401 dest.writeInt(this.flags); 3402 dest.writeInt(lastTrimLevel); 3403 dest.writeInt(importance); 3404 dest.writeInt(lru); 3405 dest.writeInt(importanceReasonCode); 3406 dest.writeInt(importanceReasonPid); 3407 ComponentName.writeToParcel(importanceReasonComponent, dest); 3408 dest.writeInt(importanceReasonImportance); 3409 dest.writeInt(processState); 3410 } 3411 3412 public void readFromParcel(Parcel source) { 3413 processName = source.readString(); 3414 pid = source.readInt(); 3415 uid = source.readInt(); 3416 pkgList = source.readStringArray(); 3417 flags = source.readInt(); 3418 lastTrimLevel = source.readInt(); 3419 importance = source.readInt(); 3420 lru = source.readInt(); 3421 importanceReasonCode = source.readInt(); 3422 importanceReasonPid = source.readInt(); 3423 importanceReasonComponent = ComponentName.readFromParcel(source); 3424 importanceReasonImportance = source.readInt(); 3425 processState = source.readInt(); 3426 } 3427 3428 public static final Creator<RunningAppProcessInfo> CREATOR = 3429 new Creator<RunningAppProcessInfo>() { 3430 public RunningAppProcessInfo createFromParcel(Parcel source) { 3431 return new RunningAppProcessInfo(source); 3432 } 3433 public RunningAppProcessInfo[] newArray(int size) { 3434 return new RunningAppProcessInfo[size]; 3435 } 3436 }; 3437 3438 private RunningAppProcessInfo(Parcel source) { 3439 readFromParcel(source); 3440 } 3441 } 3442 3443 /** 3444 * Returns a list of application processes installed on external media 3445 * that are running on the device. 3446 * 3447 * <p><b>Note: this method is only intended for debugging or building 3448 * a user-facing process management UI.</b></p> 3449 * 3450 * @return Returns a list of ApplicationInfo records, or null if none 3451 * This list ordering is not specified. 3452 * @hide 3453 */ 3454 public List<ApplicationInfo> getRunningExternalApplications() { 3455 try { 3456 return getService().getRunningExternalApplications(); 3457 } catch (RemoteException e) { 3458 throw e.rethrowFromSystemServer(); 3459 } 3460 } 3461 3462 /** 3463 * Sets the memory trim mode for a process and schedules a memory trim operation. 3464 * 3465 * <p><b>Note: this method is only intended for testing framework.</b></p> 3466 * 3467 * @return Returns true if successful. 3468 * @hide 3469 */ 3470 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3471 try { 3472 return getService().setProcessMemoryTrimLevel(process, userId, 3473 level); 3474 } catch (RemoteException e) { 3475 throw e.rethrowFromSystemServer(); 3476 } 3477 } 3478 3479 /** 3480 * Returns a list of application processes that are running on the device. 3481 * 3482 * <p><b>Note: this method is only intended for debugging or building 3483 * a user-facing process management UI.</b></p> 3484 * 3485 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3486 * running processes (it will not return an empty list). This list ordering is not 3487 * specified. 3488 */ 3489 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3490 try { 3491 return getService().getRunningAppProcesses(); 3492 } catch (RemoteException e) { 3493 throw e.rethrowFromSystemServer(); 3494 } 3495 } 3496 3497 /** 3498 * Return the importance of a given package name, based on the processes that are 3499 * currently running. The return value is one of the importance constants defined 3500 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3501 * processes that this package has code running inside of. If there are no processes 3502 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3503 * @hide 3504 */ 3505 @SystemApi @TestApi 3506 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3507 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3508 try { 3509 int procState = getService().getPackageProcessState(packageName, 3510 mContext.getOpPackageName()); 3511 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3512 } catch (RemoteException e) { 3513 throw e.rethrowFromSystemServer(); 3514 } 3515 } 3516 3517 /** 3518 * Return the importance of a given uid, based on the processes that are 3519 * currently running. The return value is one of the importance constants defined 3520 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3521 * processes that this uid has running. If there are no processes 3522 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3523 * @hide 3524 */ 3525 @SystemApi @TestApi 3526 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3527 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3528 try { 3529 int procState = getService().getUidProcessState(uid, 3530 mContext.getOpPackageName()); 3531 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3532 } catch (RemoteException e) { 3533 throw e.rethrowFromSystemServer(); 3534 } 3535 } 3536 3537 /** 3538 * Callback to get reports about changes to the importance of a uid. Use with 3539 * {@link #addOnUidImportanceListener}. 3540 * @hide 3541 */ 3542 @SystemApi @TestApi 3543 public interface OnUidImportanceListener { 3544 /** 3545 * The importance if a given uid has changed. Will be one of the importance 3546 * values in {@link RunningAppProcessInfo}; 3547 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3548 * when the uid is no longer running at all. This callback will happen on a thread 3549 * from a thread pool, not the main UI thread. 3550 * @param uid The uid whose importance has changed. 3551 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3552 */ 3553 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3554 } 3555 3556 /** 3557 * Start monitoring changes to the imoportance of uids running in the system. 3558 * @param listener The listener callback that will receive change reports. 3559 * @param importanceCutpoint The level of importance in which the caller is interested 3560 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3561 * is used here, you will receive a call each time a uids importance transitions between 3562 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3563 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3564 * 3565 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3566 * permission to use this feature.</p> 3567 * 3568 * @throws IllegalArgumentException If the listener is already registered. 3569 * @throws SecurityException If the caller does not hold 3570 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3571 * @hide 3572 */ 3573 @SystemApi @TestApi 3574 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3575 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3576 synchronized (this) { 3577 if (mImportanceListeners.containsKey(listener)) { 3578 throw new IllegalArgumentException("Listener already registered: " + listener); 3579 } 3580 // TODO: implement the cut point in the system process to avoid IPCs. 3581 UidObserver observer = new UidObserver(listener, mContext); 3582 try { 3583 getService().registerUidObserver(observer, 3584 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3585 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3586 mContext.getOpPackageName()); 3587 } catch (RemoteException e) { 3588 throw e.rethrowFromSystemServer(); 3589 } 3590 mImportanceListeners.put(listener, observer); 3591 } 3592 } 3593 3594 /** 3595 * Remove an importance listener that was previously registered with 3596 * {@link #addOnUidImportanceListener}. 3597 * 3598 * @throws IllegalArgumentException If the listener is not registered. 3599 * @hide 3600 */ 3601 @SystemApi @TestApi 3602 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3603 synchronized (this) { 3604 UidObserver observer = mImportanceListeners.remove(listener); 3605 if (observer == null) { 3606 throw new IllegalArgumentException("Listener not registered: " + listener); 3607 } 3608 try { 3609 getService().unregisterUidObserver(observer); 3610 } catch (RemoteException e) { 3611 throw e.rethrowFromSystemServer(); 3612 } 3613 } 3614 } 3615 3616 /** 3617 * Return global memory state information for the calling process. This 3618 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3619 * only fields that will be filled in are 3620 * {@link RunningAppProcessInfo#pid}, 3621 * {@link RunningAppProcessInfo#uid}, 3622 * {@link RunningAppProcessInfo#lastTrimLevel}, 3623 * {@link RunningAppProcessInfo#importance}, 3624 * {@link RunningAppProcessInfo#lru}, and 3625 * {@link RunningAppProcessInfo#importanceReasonCode}. 3626 */ 3627 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3628 try { 3629 getService().getMyMemoryState(outState); 3630 } catch (RemoteException e) { 3631 throw e.rethrowFromSystemServer(); 3632 } 3633 } 3634 3635 /** 3636 * Return information about the memory usage of one or more processes. 3637 * 3638 * <p><b>Note: this method is only intended for debugging or building 3639 * a user-facing process management UI.</b></p> 3640 * 3641 * @param pids The pids of the processes whose memory usage is to be 3642 * retrieved. 3643 * @return Returns an array of memory information, one for each 3644 * requested pid. 3645 */ 3646 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3647 try { 3648 return getService().getProcessMemoryInfo(pids); 3649 } catch (RemoteException e) { 3650 throw e.rethrowFromSystemServer(); 3651 } 3652 } 3653 3654 /** 3655 * @deprecated This is now just a wrapper for 3656 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3657 * is no longer available to applications because it allows them to 3658 * break other applications by removing their alarms, stopping their 3659 * services, etc. 3660 */ 3661 @Deprecated 3662 public void restartPackage(String packageName) { 3663 killBackgroundProcesses(packageName); 3664 } 3665 3666 /** 3667 * Have the system immediately kill all background processes associated 3668 * with the given package. This is the same as the kernel killing those 3669 * processes to reclaim memory; the system will take care of restarting 3670 * these processes in the future as needed. 3671 * 3672 * @param packageName The name of the package whose processes are to 3673 * be killed. 3674 */ 3675 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3676 public void killBackgroundProcesses(String packageName) { 3677 try { 3678 getService().killBackgroundProcesses(packageName, 3679 UserHandle.myUserId()); 3680 } catch (RemoteException e) { 3681 throw e.rethrowFromSystemServer(); 3682 } 3683 } 3684 3685 /** 3686 * Kills the specified UID. 3687 * @param uid The UID to kill. 3688 * @param reason The reason for the kill. 3689 * 3690 * @hide 3691 */ 3692 @SystemApi 3693 @RequiresPermission(Manifest.permission.KILL_UID) 3694 public void killUid(int uid, String reason) { 3695 try { 3696 getService().killUid(UserHandle.getAppId(uid), 3697 UserHandle.getUserId(uid), reason); 3698 } catch (RemoteException e) { 3699 throw e.rethrowFromSystemServer(); 3700 } 3701 } 3702 3703 /** 3704 * Have the system perform a force stop of everything associated with 3705 * the given application package. All processes that share its uid 3706 * will be killed, all services it has running stopped, all activities 3707 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3708 * broadcast will be sent, so that any of its registered alarms can 3709 * be stopped, notifications removed, etc. 3710 * 3711 * <p>You must hold the permission 3712 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3713 * call this method. 3714 * 3715 * @param packageName The name of the package to be stopped. 3716 * @param userId The user for which the running package is to be stopped. 3717 * 3718 * @hide This is not available to third party applications due to 3719 * it allowing them to break other applications by stopping their 3720 * services, removing their alarms, etc. 3721 */ 3722 public void forceStopPackageAsUser(String packageName, int userId) { 3723 try { 3724 getService().forceStopPackage(packageName, userId); 3725 } catch (RemoteException e) { 3726 throw e.rethrowFromSystemServer(); 3727 } 3728 } 3729 3730 /** 3731 * @see #forceStopPackageAsUser(String, int) 3732 * @hide 3733 */ 3734 @SystemApi 3735 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3736 public void forceStopPackage(String packageName) { 3737 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3738 } 3739 3740 /** 3741 * Get the device configuration attributes. 3742 */ 3743 public ConfigurationInfo getDeviceConfigurationInfo() { 3744 try { 3745 return getService().getDeviceConfigurationInfo(); 3746 } catch (RemoteException e) { 3747 throw e.rethrowFromSystemServer(); 3748 } 3749 } 3750 3751 /** 3752 * Get the preferred density of icons for the launcher. This is used when 3753 * custom drawables are created (e.g., for shortcuts). 3754 * 3755 * @return density in terms of DPI 3756 */ 3757 public int getLauncherLargeIconDensity() { 3758 final Resources res = mContext.getResources(); 3759 final int density = res.getDisplayMetrics().densityDpi; 3760 final int sw = res.getConfiguration().smallestScreenWidthDp; 3761 3762 if (sw < 600) { 3763 // Smaller than approx 7" tablets, use the regular icon size. 3764 return density; 3765 } 3766 3767 switch (density) { 3768 case DisplayMetrics.DENSITY_LOW: 3769 return DisplayMetrics.DENSITY_MEDIUM; 3770 case DisplayMetrics.DENSITY_MEDIUM: 3771 return DisplayMetrics.DENSITY_HIGH; 3772 case DisplayMetrics.DENSITY_TV: 3773 return DisplayMetrics.DENSITY_XHIGH; 3774 case DisplayMetrics.DENSITY_HIGH: 3775 return DisplayMetrics.DENSITY_XHIGH; 3776 case DisplayMetrics.DENSITY_XHIGH: 3777 return DisplayMetrics.DENSITY_XXHIGH; 3778 case DisplayMetrics.DENSITY_XXHIGH: 3779 return DisplayMetrics.DENSITY_XHIGH * 2; 3780 default: 3781 // The density is some abnormal value. Return some other 3782 // abnormal value that is a reasonable scaling of it. 3783 return (int)((density*1.5f)+.5f); 3784 } 3785 } 3786 3787 /** 3788 * Get the preferred launcher icon size. This is used when custom drawables 3789 * are created (e.g., for shortcuts). 3790 * 3791 * @return dimensions of square icons in terms of pixels 3792 */ 3793 public int getLauncherLargeIconSize() { 3794 return getLauncherLargeIconSizeInner(mContext); 3795 } 3796 3797 static int getLauncherLargeIconSizeInner(Context context) { 3798 final Resources res = context.getResources(); 3799 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3800 final int sw = res.getConfiguration().smallestScreenWidthDp; 3801 3802 if (sw < 600) { 3803 // Smaller than approx 7" tablets, use the regular icon size. 3804 return size; 3805 } 3806 3807 final int density = res.getDisplayMetrics().densityDpi; 3808 3809 switch (density) { 3810 case DisplayMetrics.DENSITY_LOW: 3811 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3812 case DisplayMetrics.DENSITY_MEDIUM: 3813 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3814 case DisplayMetrics.DENSITY_TV: 3815 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3816 case DisplayMetrics.DENSITY_HIGH: 3817 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3818 case DisplayMetrics.DENSITY_XHIGH: 3819 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3820 case DisplayMetrics.DENSITY_XXHIGH: 3821 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3822 default: 3823 // The density is some abnormal value. Return some other 3824 // abnormal value that is a reasonable scaling of it. 3825 return (int)((size*1.5f) + .5f); 3826 } 3827 } 3828 3829 /** 3830 * Returns "true" if the user interface is currently being messed with 3831 * by a monkey. 3832 */ 3833 public static boolean isUserAMonkey() { 3834 try { 3835 return getService().isUserAMonkey(); 3836 } catch (RemoteException e) { 3837 throw e.rethrowFromSystemServer(); 3838 } 3839 } 3840 3841 /** 3842 * Returns "true" if device is running in a test harness. 3843 */ 3844 public static boolean isRunningInTestHarness() { 3845 return SystemProperties.getBoolean("ro.test_harness", false); 3846 } 3847 3848 /** 3849 * Returns the launch count of each installed package. 3850 * 3851 * @hide 3852 */ 3853 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3854 try { 3855 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3856 ServiceManager.getService("usagestats")); 3857 if (usageStatsService == null) { 3858 return new HashMap<String, Integer>(); 3859 } 3860 3861 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3862 ActivityThread.currentPackageName()); 3863 if (allPkgUsageStats == null) { 3864 return new HashMap<String, Integer>(); 3865 } 3866 3867 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3868 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3869 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3870 } 3871 3872 return launchCounts; 3873 } catch (RemoteException e) { 3874 Log.w(TAG, "Could not query launch counts", e); 3875 return new HashMap<String, Integer>(); 3876 } 3877 }*/ 3878 3879 /** @hide */ 3880 public static int checkComponentPermission(String permission, int uid, 3881 int owningUid, boolean exported) { 3882 // Root, system server get to do everything. 3883 final int appId = UserHandle.getAppId(uid); 3884 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3885 return PackageManager.PERMISSION_GRANTED; 3886 } 3887 // Isolated processes don't get any permissions. 3888 if (UserHandle.isIsolated(uid)) { 3889 return PackageManager.PERMISSION_DENIED; 3890 } 3891 // If there is a uid that owns whatever is being accessed, it has 3892 // blanket access to it regardless of the permissions it requires. 3893 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3894 return PackageManager.PERMISSION_GRANTED; 3895 } 3896 // If the target is not exported, then nobody else can get to it. 3897 if (!exported) { 3898 /* 3899 RuntimeException here = new RuntimeException("here"); 3900 here.fillInStackTrace(); 3901 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3902 here); 3903 */ 3904 return PackageManager.PERMISSION_DENIED; 3905 } 3906 if (permission == null) { 3907 return PackageManager.PERMISSION_GRANTED; 3908 } 3909 try { 3910 return AppGlobals.getPackageManager() 3911 .checkUidPermission(permission, uid); 3912 } catch (RemoteException e) { 3913 throw e.rethrowFromSystemServer(); 3914 } 3915 } 3916 3917 /** @hide */ 3918 public static int checkUidPermission(String permission, int uid) { 3919 try { 3920 return AppGlobals.getPackageManager() 3921 .checkUidPermission(permission, uid); 3922 } catch (RemoteException e) { 3923 throw e.rethrowFromSystemServer(); 3924 } 3925 } 3926 3927 /** 3928 * @hide 3929 * Helper for dealing with incoming user arguments to system service calls. 3930 * Takes care of checking permissions and converting USER_CURRENT to the 3931 * actual current user. 3932 * 3933 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3934 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3935 * @param userId The user id argument supplied by the caller -- this is the user 3936 * they want to run as. 3937 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3938 * to get a USER_ALL returned and deal with it correctly. If false, 3939 * an exception will be thrown if USER_ALL is supplied. 3940 * @param requireFull If true, the caller must hold 3941 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3942 * different user than their current process; otherwise they must hold 3943 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3944 * @param name Optional textual name of the incoming call; only for generating error messages. 3945 * @param callerPackage Optional package name of caller; only for error messages. 3946 * 3947 * @return Returns the user ID that the call should run as. Will always be a concrete 3948 * user number, unless <var>allowAll</var> is true in which case it could also be 3949 * USER_ALL. 3950 */ 3951 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3952 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3953 if (UserHandle.getUserId(callingUid) == userId) { 3954 return userId; 3955 } 3956 try { 3957 return getService().handleIncomingUser(callingPid, 3958 callingUid, userId, allowAll, requireFull, name, callerPackage); 3959 } catch (RemoteException e) { 3960 throw e.rethrowFromSystemServer(); 3961 } 3962 } 3963 3964 /** 3965 * Gets the userId of the current foreground user. Requires system permissions. 3966 * @hide 3967 */ 3968 @SystemApi 3969 public static int getCurrentUser() { 3970 UserInfo ui; 3971 try { 3972 ui = getService().getCurrentUser(); 3973 return ui != null ? ui.id : 0; 3974 } catch (RemoteException e) { 3975 throw e.rethrowFromSystemServer(); 3976 } 3977 } 3978 3979 /** 3980 * @param userid the user's id. Zero indicates the default user. 3981 * @hide 3982 */ 3983 public boolean switchUser(int userid) { 3984 try { 3985 return getService().switchUser(userid); 3986 } catch (RemoteException e) { 3987 throw e.rethrowFromSystemServer(); 3988 } 3989 } 3990 3991 /** 3992 * Logs out current current foreground user by switching to the system user and stopping the 3993 * user being switched from. 3994 * @hide 3995 */ 3996 public static void logoutCurrentUser() { 3997 int currentUser = ActivityManager.getCurrentUser(); 3998 if (currentUser != UserHandle.USER_SYSTEM) { 3999 try { 4000 getService().switchUser(UserHandle.USER_SYSTEM); 4001 getService().stopUser(currentUser, /* force= */ false, null); 4002 } catch (RemoteException e) { 4003 e.rethrowFromSystemServer(); 4004 } 4005 } 4006 } 4007 4008 /** {@hide} */ 4009 public static final int FLAG_OR_STOPPED = 1 << 0; 4010 /** {@hide} */ 4011 public static final int FLAG_AND_LOCKED = 1 << 1; 4012 /** {@hide} */ 4013 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4014 /** {@hide} */ 4015 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4016 4017 /** 4018 * Return whether the given user is actively running. This means that 4019 * the user is in the "started" state, not "stopped" -- it is currently 4020 * allowed to run code through scheduled alarms, receiving broadcasts, 4021 * etc. A started user may be either the current foreground user or a 4022 * background user; the result here does not distinguish between the two. 4023 * @param userId the user's id. Zero indicates the default user. 4024 * @hide 4025 */ 4026 public boolean isUserRunning(int userId) { 4027 try { 4028 return getService().isUserRunning(userId, 0); 4029 } catch (RemoteException e) { 4030 throw e.rethrowFromSystemServer(); 4031 } 4032 } 4033 4034 /** {@hide} */ 4035 public boolean isVrModePackageEnabled(ComponentName component) { 4036 try { 4037 return getService().isVrModePackageEnabled(component); 4038 } catch (RemoteException e) { 4039 throw e.rethrowFromSystemServer(); 4040 } 4041 } 4042 4043 /** 4044 * Perform a system dump of various state associated with the given application 4045 * package name. This call blocks while the dump is being performed, so should 4046 * not be done on a UI thread. The data will be written to the given file 4047 * descriptor as text. 4048 * @param fd The file descriptor that the dump should be written to. The file 4049 * descriptor is <em>not</em> closed by this function; the caller continues to 4050 * own it. 4051 * @param packageName The name of the package that is to be dumped. 4052 */ 4053 @RequiresPermission(Manifest.permission.DUMP) 4054 public void dumpPackageState(FileDescriptor fd, String packageName) { 4055 dumpPackageStateStatic(fd, packageName); 4056 } 4057 4058 /** 4059 * @hide 4060 */ 4061 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4062 FileOutputStream fout = new FileOutputStream(fd); 4063 PrintWriter pw = new FastPrintWriter(fout); 4064 dumpService(pw, fd, "package", new String[] { packageName }); 4065 pw.println(); 4066 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4067 "-a", "package", packageName }); 4068 pw.println(); 4069 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4070 pw.println(); 4071 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4072 pw.println(); 4073 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4074 pw.println(); 4075 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4076 pw.flush(); 4077 } 4078 4079 /** 4080 * @hide 4081 */ 4082 public static boolean isSystemReady() { 4083 if (!sSystemReady) { 4084 if (ActivityThread.isSystem()) { 4085 sSystemReady = 4086 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4087 } else { 4088 // Since this is being called from outside system server, system should be 4089 // ready by now. 4090 sSystemReady = true; 4091 } 4092 } 4093 return sSystemReady; 4094 } 4095 4096 /** 4097 * @hide 4098 */ 4099 public static void broadcastStickyIntent(Intent intent, int userId) { 4100 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4101 } 4102 4103 /** 4104 * Convenience for sending a sticky broadcast. For internal use only. 4105 * 4106 * @hide 4107 */ 4108 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4109 try { 4110 getService().broadcastIntent( 4111 null, intent, null, null, Activity.RESULT_OK, null, null, 4112 null /*permission*/, appOp, null, false, true, userId); 4113 } catch (RemoteException ex) { 4114 } 4115 } 4116 4117 /** 4118 * @hide 4119 */ 4120 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4121 String tag) { 4122 try { 4123 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4124 sourceUid, sourcePkg, tag); 4125 } catch (RemoteException ex) { 4126 } 4127 } 4128 4129 /** 4130 * @hide 4131 */ 4132 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4133 try { 4134 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4135 } catch (RemoteException ex) { 4136 } 4137 } 4138 4139 /** 4140 * @hide 4141 */ 4142 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4143 try { 4144 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4145 } catch (RemoteException ex) { 4146 } 4147 } 4148 4149 /** 4150 * @hide 4151 */ 4152 public static IActivityManager getService() { 4153 return IActivityManagerSingleton.get(); 4154 } 4155 4156 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4157 new Singleton<IActivityManager>() { 4158 @Override 4159 protected IActivityManager create() { 4160 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4161 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4162 return am; 4163 } 4164 }; 4165 4166 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4167 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4168 IBinder service = ServiceManager.checkService(name); 4169 if (service == null) { 4170 pw.println(" (Service not found)"); 4171 return; 4172 } 4173 TransferPipe tp = null; 4174 try { 4175 pw.flush(); 4176 tp = new TransferPipe(); 4177 tp.setBufferPrefix(" "); 4178 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4179 tp.go(fd, 10000); 4180 } catch (Throwable e) { 4181 if (tp != null) { 4182 tp.kill(); 4183 } 4184 pw.println("Failure dumping service:"); 4185 e.printStackTrace(pw); 4186 } 4187 } 4188 4189 /** 4190 * Request that the system start watching for the calling process to exceed a pss 4191 * size as given here. Once called, the system will look for any occasions where it 4192 * sees the associated process with a larger pss size and, when this happens, automatically 4193 * pull a heap dump from it and allow the user to share the data. Note that this request 4194 * continues running even if the process is killed and restarted. To remove the watch, 4195 * use {@link #clearWatchHeapLimit()}. 4196 * 4197 * <p>This API only work if the calling process has been marked as 4198 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4199 * (userdebug or eng) build.</p> 4200 * 4201 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4202 * handle heap limit reports themselves.</p> 4203 * 4204 * @param pssSize The size in bytes to set the limit at. 4205 */ 4206 public void setWatchHeapLimit(long pssSize) { 4207 try { 4208 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4209 mContext.getPackageName()); 4210 } catch (RemoteException e) { 4211 throw e.rethrowFromSystemServer(); 4212 } 4213 } 4214 4215 /** 4216 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4217 * If your package has an activity handling this action, it will be launched with the 4218 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4219 * match the activty must support this action and a MIME type of "*/*". 4220 */ 4221 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4222 4223 /** 4224 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4225 */ 4226 public void clearWatchHeapLimit() { 4227 try { 4228 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4229 } catch (RemoteException e) { 4230 throw e.rethrowFromSystemServer(); 4231 } 4232 } 4233 4234 /** 4235 * @hide 4236 */ 4237 public void startLockTaskMode(int taskId) { 4238 try { 4239 getService().startLockTaskModeById(taskId); 4240 } catch (RemoteException e) { 4241 throw e.rethrowFromSystemServer(); 4242 } 4243 } 4244 4245 /** 4246 * @hide 4247 */ 4248 public void stopLockTaskMode() { 4249 try { 4250 getService().stopLockTaskMode(); 4251 } catch (RemoteException e) { 4252 throw e.rethrowFromSystemServer(); 4253 } 4254 } 4255 4256 /** 4257 * Return whether currently in lock task mode. When in this mode 4258 * no new tasks can be created or switched to. 4259 * 4260 * @see Activity#startLockTask() 4261 * 4262 * @deprecated Use {@link #getLockTaskModeState} instead. 4263 */ 4264 @Deprecated 4265 public boolean isInLockTaskMode() { 4266 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4267 } 4268 4269 /** 4270 * Return the current state of task locking. The three possible outcomes 4271 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4272 * and {@link #LOCK_TASK_MODE_PINNED}. 4273 * 4274 * @see Activity#startLockTask() 4275 */ 4276 public int getLockTaskModeState() { 4277 try { 4278 return getService().getLockTaskModeState(); 4279 } catch (RemoteException e) { 4280 throw e.rethrowFromSystemServer(); 4281 } 4282 } 4283 4284 /** 4285 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4286 * thread can be a VR thread in a process at a time, and that thread may be subject to 4287 * restrictions on the amount of time it can run. 4288 * 4289 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4290 * method will return to normal operation, and calling this method will do nothing while 4291 * persistent VR mode is enabled. 4292 * 4293 * To reset the VR thread for an application, a tid of 0 can be passed. 4294 * 4295 * @see android.os.Process#myTid() 4296 * @param tid tid of the VR thread 4297 */ 4298 public static void setVrThread(int tid) { 4299 try { 4300 getService().setVrThread(tid); 4301 } catch (RemoteException e) { 4302 // pass 4303 } 4304 } 4305 4306 /** 4307 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4308 * beyond a single process. Only one thread can be a 4309 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4310 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4311 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4312 * persistent VR thread loses its new scheduling priority; this method must be called again to 4313 * set the persistent thread. 4314 * 4315 * To reset the persistent VR thread, a tid of 0 can be passed. 4316 * 4317 * @see android.os.Process#myTid() 4318 * @param tid tid of the VR thread 4319 * @hide 4320 */ 4321 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4322 public static void setPersistentVrThread(int tid) { 4323 try { 4324 getService().setPersistentVrThread(tid); 4325 } catch (RemoteException e) { 4326 // pass 4327 } 4328 } 4329 4330 /** 4331 * The AppTask allows you to manage your own application's tasks. 4332 * See {@link android.app.ActivityManager#getAppTasks()} 4333 */ 4334 public static class AppTask { 4335 private IAppTask mAppTaskImpl; 4336 4337 /** @hide */ 4338 public AppTask(IAppTask task) { 4339 mAppTaskImpl = task; 4340 } 4341 4342 /** 4343 * Finishes all activities in this task and removes it from the recent tasks list. 4344 */ 4345 public void finishAndRemoveTask() { 4346 try { 4347 mAppTaskImpl.finishAndRemoveTask(); 4348 } catch (RemoteException e) { 4349 throw e.rethrowFromSystemServer(); 4350 } 4351 } 4352 4353 /** 4354 * Get the RecentTaskInfo associated with this task. 4355 * 4356 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4357 */ 4358 public RecentTaskInfo getTaskInfo() { 4359 try { 4360 return mAppTaskImpl.getTaskInfo(); 4361 } catch (RemoteException e) { 4362 throw e.rethrowFromSystemServer(); 4363 } 4364 } 4365 4366 /** 4367 * Bring this task to the foreground. If it contains activities, they will be 4368 * brought to the foreground with it and their instances re-created if needed. 4369 * If it doesn't contain activities, the root activity of the task will be 4370 * re-launched. 4371 */ 4372 public void moveToFront() { 4373 try { 4374 mAppTaskImpl.moveToFront(); 4375 } catch (RemoteException e) { 4376 throw e.rethrowFromSystemServer(); 4377 } 4378 } 4379 4380 /** 4381 * Start an activity in this task. Brings the task to the foreground. If this task 4382 * is not currently active (that is, its id < 0), then a new activity for the given 4383 * Intent will be launched as the root of the task and the task brought to the 4384 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4385 * an activity to launch in a new task, then a new activity for the given Intent will 4386 * be launched on top of the task and the task brought to the foreground. If this 4387 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4388 * or would otherwise be launched in to a new task, then the activity not launched but 4389 * this task be brought to the foreground and a new intent delivered to the top 4390 * activity if appropriate. 4391 * 4392 * <p>In other words, you generally want to use an Intent here that does not specify 4393 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4394 * and let the system do the right thing.</p> 4395 * 4396 * @param intent The Intent describing the new activity to be launched on the task. 4397 * @param options Optional launch options. 4398 * 4399 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4400 */ 4401 public void startActivity(Context context, Intent intent, Bundle options) { 4402 ActivityThread thread = ActivityThread.currentActivityThread(); 4403 thread.getInstrumentation().execStartActivityFromAppTask(context, 4404 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4405 } 4406 4407 /** 4408 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4409 * Intent of this AppTask. 4410 * 4411 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4412 * be set; otherwise, it will be cleared. 4413 */ 4414 public void setExcludeFromRecents(boolean exclude) { 4415 try { 4416 mAppTaskImpl.setExcludeFromRecents(exclude); 4417 } catch (RemoteException e) { 4418 throw e.rethrowFromSystemServer(); 4419 } 4420 } 4421 } 4422} 4423