ActivityManager.java revision b6efdda9a014c30b894b64270a9d0e615d0ebec1
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.Build; 34import android.os.Build.VERSION_CODES; 35import android.os.IBinder; 36import android.os.ParcelFileDescriptor; 37 38import com.android.internal.app.procstats.ProcessStats; 39import com.android.internal.os.RoSystemProperties; 40import com.android.internal.os.TransferPipe; 41import com.android.internal.util.FastPrintWriter; 42import com.android.server.LocalServices; 43 44import android.content.ComponentName; 45import android.content.Context; 46import android.content.Intent; 47import android.content.UriPermission; 48import android.content.pm.ApplicationInfo; 49import android.content.pm.ConfigurationInfo; 50import android.content.pm.IPackageDataObserver; 51import android.content.pm.PackageManager; 52import android.content.pm.ParceledListSlice; 53import android.content.pm.UserInfo; 54import android.content.res.Resources; 55import android.graphics.Bitmap; 56import android.graphics.Color; 57import android.graphics.Rect; 58import android.os.Bundle; 59import android.os.Debug; 60import android.os.Handler; 61import android.os.Parcel; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import org.xmlpull.v1.XmlSerializer; 75 76import java.io.FileDescriptor; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.lang.annotation.Retention; 81import java.lang.annotation.RetentionPolicy; 82import java.util.ArrayList; 83import java.util.List; 84 85/** 86 * <p> 87 * This class gives information about, and interacts 88 * with, activities, services, and the containing 89 * process. 90 * </p> 91 * 92 * <p> 93 * A number of the methods in this class are for 94 * debugging or informational purposes and they should 95 * not be used to affect any runtime behavior of 96 * your app. These methods are called out as such in 97 * the method level documentation. 98 * </p> 99 * 100 *<p> 101 * Most application developers should not have the need to 102 * use this class, most of whose methods are for specialized 103 * use cases. However, a few methods are more broadly applicable. 104 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 105 * enables your app to detect whether it is running on a low-memory device, 106 * and behave accordingly. 107 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 108 * is for apps with reset-data functionality. 109 * </p> 110 * 111 * <p> 112 * In some special use cases, where an app interacts with 113 * its Task stack, the app may use the 114 * {@link android.app.ActivityManager.AppTask} and 115 * {@link android.app.ActivityManager.RecentTaskInfo} inner 116 * classes. However, in general, the methods in this class should 117 * be used for testing and debugging purposes only. 118 * </p> 119 */ 120public class ActivityManager { 121 private static String TAG = "ActivityManager"; 122 123 private static int gMaxRecentTasks = -1; 124 125 private final Context mContext; 126 127 private static volatile boolean sSystemReady = false; 128 129 /** 130 * System property to enable task snapshots. 131 * @hide 132 */ 133 public final static boolean ENABLE_TASK_SNAPSHOTS; 134 135 static { 136 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 137 } 138 139 static final class UidObserver extends IUidObserver.Stub { 140 final OnUidImportanceListener mListener; 141 final Context mContext; 142 143 UidObserver(OnUidImportanceListener listener, Context clientContext) { 144 mListener = listener; 145 mContext = clientContext; 146 } 147 148 @Override 149 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 150 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 151 procState, mContext)); 152 } 153 154 @Override 155 public void onUidGone(int uid, boolean disabled) { 156 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 157 } 158 159 @Override 160 public void onUidActive(int uid) { 161 } 162 163 @Override 164 public void onUidIdle(int uid, boolean disabled) { 165 } 166 } 167 168 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 169 170 /** 171 * Defines acceptable types of bugreports. 172 * @hide 173 */ 174 @Retention(RetentionPolicy.SOURCE) 175 @IntDef({ 176 BUGREPORT_OPTION_FULL, 177 BUGREPORT_OPTION_INTERACTIVE, 178 BUGREPORT_OPTION_REMOTE, 179 BUGREPORT_OPTION_WEAR, 180 BUGREPORT_OPTION_TELEPHONY 181 }) 182 public @interface BugreportMode {} 183 /** 184 * Takes a bugreport without user interference (and hence causing less 185 * interference to the system), but includes all sections. 186 * @hide 187 */ 188 public static final int BUGREPORT_OPTION_FULL = 0; 189 /** 190 * Allows user to monitor progress and enter additional data; might not include all 191 * sections. 192 * @hide 193 */ 194 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 195 /** 196 * Takes a bugreport requested remotely by administrator of the Device Owner app, 197 * not the device's user. 198 * @hide 199 */ 200 public static final int BUGREPORT_OPTION_REMOTE = 2; 201 /** 202 * Takes a bugreport on a wearable device. 203 * @hide 204 */ 205 public static final int BUGREPORT_OPTION_WEAR = 3; 206 207 /** 208 * Takes a lightweight version of bugreport that only includes a few, urgent sections 209 * used to report telephony bugs. 210 * @hide 211 */ 212 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 213 214 /** 215 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 216 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 217 * uninstalled in lieu of the declaring one. The package named here must be 218 * signed with the same certificate as the one declaring the {@code <meta-data>}. 219 */ 220 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 221 222 /** 223 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 224 * @hide 225 */ 226 public static final int START_VOICE_HIDDEN_SESSION = -10; 227 228 /** 229 * Result for IActivityManager.startVoiceActivity: active session does not match 230 * the requesting token. 231 * @hide 232 */ 233 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 234 235 /** 236 * Result for IActivityManager.startActivity: trying to start a background user 237 * activity that shouldn't be displayed for all users. 238 * @hide 239 */ 240 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 241 242 /** 243 * Result for IActivityManager.startActivity: trying to start an activity under voice 244 * control when that activity does not support the VOICE category. 245 * @hide 246 */ 247 public static final int START_NOT_VOICE_COMPATIBLE = -7; 248 249 /** 250 * Result for IActivityManager.startActivity: an error where the 251 * start had to be canceled. 252 * @hide 253 */ 254 public static final int START_CANCELED = -6; 255 256 /** 257 * Result for IActivityManager.startActivity: an error where the 258 * thing being started is not an activity. 259 * @hide 260 */ 261 public static final int START_NOT_ACTIVITY = -5; 262 263 /** 264 * Result for IActivityManager.startActivity: an error where the 265 * caller does not have permission to start the activity. 266 * @hide 267 */ 268 public static final int START_PERMISSION_DENIED = -4; 269 270 /** 271 * Result for IActivityManager.startActivity: an error where the 272 * caller has requested both to forward a result and to receive 273 * a result. 274 * @hide 275 */ 276 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 277 278 /** 279 * Result for IActivityManager.startActivity: an error where the 280 * requested class is not found. 281 * @hide 282 */ 283 public static final int START_CLASS_NOT_FOUND = -2; 284 285 /** 286 * Result for IActivityManager.startActivity: an error where the 287 * given Intent could not be resolved to an activity. 288 * @hide 289 */ 290 public static final int START_INTENT_NOT_RESOLVED = -1; 291 292 /** 293 * Result for IActivityManaqer.startActivity: the activity was started 294 * successfully as normal. 295 * @hide 296 */ 297 public static final int START_SUCCESS = 0; 298 299 /** 300 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 301 * be executed if it is the recipient, and that is indeed the case. 302 * @hide 303 */ 304 public static final int START_RETURN_INTENT_TO_CALLER = 1; 305 306 /** 307 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 308 * a task was simply brought to the foreground. 309 * @hide 310 */ 311 public static final int START_TASK_TO_FRONT = 2; 312 313 /** 314 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 315 * the given Intent was given to the existing top activity. 316 * @hide 317 */ 318 public static final int START_DELIVERED_TO_TOP = 3; 319 320 /** 321 * Result for IActivityManaqer.startActivity: request was canceled because 322 * app switches are temporarily canceled to ensure the user's last request 323 * (such as pressing home) is performed. 324 * @hide 325 */ 326 public static final int START_SWITCHES_CANCELED = 4; 327 328 /** 329 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 330 * while in Lock Task Mode. 331 * @hide 332 */ 333 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 334 335 /** 336 * Flag for IActivityManaqer.startActivity: do special start mode where 337 * a new activity is launched only if it is needed. 338 * @hide 339 */ 340 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 341 342 /** 343 * Flag for IActivityManaqer.startActivity: launch the app for 344 * debugging. 345 * @hide 346 */ 347 public static final int START_FLAG_DEBUG = 1<<1; 348 349 /** 350 * Flag for IActivityManaqer.startActivity: launch the app for 351 * allocation tracking. 352 * @hide 353 */ 354 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 355 356 /** 357 * Flag for IActivityManaqer.startActivity: launch the app with 358 * native debugging support. 359 * @hide 360 */ 361 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 362 363 /** 364 * Result for IActivityManaqer.broadcastIntent: success! 365 * @hide 366 */ 367 public static final int BROADCAST_SUCCESS = 0; 368 369 /** 370 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 371 * a sticky intent without appropriate permission. 372 * @hide 373 */ 374 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 375 376 /** 377 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 378 * to a stopped user. Fail. 379 * @hide 380 */ 381 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 382 383 /** 384 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 385 * for a sendBroadcast operation. 386 * @hide 387 */ 388 public static final int INTENT_SENDER_BROADCAST = 1; 389 390 /** 391 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 392 * for a startActivity operation. 393 * @hide 394 */ 395 public static final int INTENT_SENDER_ACTIVITY = 2; 396 397 /** 398 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 399 * for an activity result operation. 400 * @hide 401 */ 402 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 403 404 /** 405 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 406 * for a startService operation. 407 * @hide 408 */ 409 public static final int INTENT_SENDER_SERVICE = 4; 410 411 /** 412 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 413 * for a startForegroundService operation. 414 * @hide 415 */ 416 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 417 418 /** @hide User operation call: success! */ 419 public static final int USER_OP_SUCCESS = 0; 420 421 /** @hide User operation call: given user id is not known. */ 422 public static final int USER_OP_UNKNOWN_USER = -1; 423 424 /** @hide User operation call: given user id is the current user, can't be stopped. */ 425 public static final int USER_OP_IS_CURRENT = -2; 426 427 /** @hide User operation call: system user can't be stopped. */ 428 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 429 430 /** @hide User operation call: one of related users cannot be stopped. */ 431 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 432 433 /** @hide Not a real process state. */ 434 public static final int PROCESS_STATE_UNKNOWN = -1; 435 436 /** @hide Process is a persistent system process. */ 437 public static final int PROCESS_STATE_PERSISTENT = 0; 438 439 /** @hide Process is a persistent system process and is doing UI. */ 440 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 441 442 /** @hide Process is hosting the current top activities. Note that this covers 443 * all activities that are visible to the user. */ 444 public static final int PROCESS_STATE_TOP = 2; 445 446 /** @hide Process is hosting a foreground service due to a system binding. */ 447 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 448 449 /** @hide Process is hosting a foreground service. */ 450 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 451 452 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 453 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 454 455 /** @hide Process is important to the user, and something they are aware of. */ 456 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 457 458 /** @hide Process is important to the user, but not something they are aware of. */ 459 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 460 461 /** @hide Process is in the background running a backup/restore operation. */ 462 public static final int PROCESS_STATE_BACKUP = 8; 463 464 /** @hide Process is in the background, but it can't restore its state so we want 465 * to try to avoid killing it. */ 466 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 467 468 /** @hide Process is in the background running a service. Unlike oom_adj, this level 469 * is used for both the normal running in background state and the executing 470 * operations state. */ 471 public static final int PROCESS_STATE_SERVICE = 10; 472 473 /** @hide Process is in the background running a receiver. Note that from the 474 * perspective of oom_adj receivers run at a higher foreground level, but for our 475 * prioritization here that is not necessary and putting them below services means 476 * many fewer changes in some process states as they receive broadcasts. */ 477 public static final int PROCESS_STATE_RECEIVER = 11; 478 479 /** @hide Process is in the background but hosts the home activity. */ 480 public static final int PROCESS_STATE_HOME = 12; 481 482 /** @hide Process is in the background but hosts the last shown activity. */ 483 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 484 485 /** @hide Process is being cached for later use and contains activities. */ 486 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 487 488 /** @hide Process is being cached for later use and is a client of another cached 489 * process that contains activities. */ 490 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 491 492 /** @hide Process is being cached for later use and is empty. */ 493 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 494 495 /** @hide Process does not exist. */ 496 public static final int PROCESS_STATE_NONEXISTENT = 17; 497 498 /** @hide The lowest process state number */ 499 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 500 501 /** @hide The highest process state number */ 502 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 503 504 /** @hide Should this process state be considered a background state? */ 505 public static final boolean isProcStateBackground(int procState) { 506 return procState >= PROCESS_STATE_BACKUP; 507 } 508 509 /** @hide requestType for assist context: only basic information. */ 510 public static final int ASSIST_CONTEXT_BASIC = 0; 511 512 /** @hide requestType for assist context: generate full AssistStructure. */ 513 public static final int ASSIST_CONTEXT_FULL = 1; 514 515 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 516 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 517 518 /** @hide Flag for registerUidObserver: report changes in process state. */ 519 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 520 521 /** @hide Flag for registerUidObserver: report uid gone. */ 522 public static final int UID_OBSERVER_GONE = 1<<1; 523 524 /** @hide Flag for registerUidObserver: report uid has become idle. */ 525 public static final int UID_OBSERVER_IDLE = 1<<2; 526 527 /** @hide Flag for registerUidObserver: report uid has become active. */ 528 public static final int UID_OBSERVER_ACTIVE = 1<<3; 529 530 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 531 public static final int APP_START_MODE_NORMAL = 0; 532 533 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 534 public static final int APP_START_MODE_DELAYED = 1; 535 536 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 537 * rigid errors (throwing exception). */ 538 public static final int APP_START_MODE_DELAYED_RIGID = 2; 539 540 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 541 * launches; this is the mode for ephemeral apps. */ 542 public static final int APP_START_MODE_DISABLED = 3; 543 544 /** 545 * Lock task mode is not active. 546 */ 547 public static final int LOCK_TASK_MODE_NONE = 0; 548 549 /** 550 * Full lock task mode is active. 551 */ 552 public static final int LOCK_TASK_MODE_LOCKED = 1; 553 554 /** 555 * App pinning mode is active. 556 */ 557 public static final int LOCK_TASK_MODE_PINNED = 2; 558 559 Point mAppTaskThumbnailSize; 560 561 /*package*/ ActivityManager(Context context, Handler handler) { 562 mContext = context; 563 } 564 565 /** 566 * Screen compatibility mode: the application most always run in 567 * compatibility mode. 568 * @hide 569 */ 570 public static final int COMPAT_MODE_ALWAYS = -1; 571 572 /** 573 * Screen compatibility mode: the application can never run in 574 * compatibility mode. 575 * @hide 576 */ 577 public static final int COMPAT_MODE_NEVER = -2; 578 579 /** 580 * Screen compatibility mode: unknown. 581 * @hide 582 */ 583 public static final int COMPAT_MODE_UNKNOWN = -3; 584 585 /** 586 * Screen compatibility mode: the application currently has compatibility 587 * mode disabled. 588 * @hide 589 */ 590 public static final int COMPAT_MODE_DISABLED = 0; 591 592 /** 593 * Screen compatibility mode: the application currently has compatibility 594 * mode enabled. 595 * @hide 596 */ 597 public static final int COMPAT_MODE_ENABLED = 1; 598 599 /** 600 * Screen compatibility mode: request to toggle the application's 601 * compatibility mode. 602 * @hide 603 */ 604 public static final int COMPAT_MODE_TOGGLE = 2; 605 606 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 607 SystemProperties.getBoolean("debug.force_low_ram", false); 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 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1070 } 1071 1072 /** 1073 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1074 * small battery is ultimately up to the device configuration, but currently it generally means 1075 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1076 * to determine whether certain features should be altered to account for a drastically smaller 1077 * battery. 1078 * @hide 1079 */ 1080 public static boolean isSmallBatteryDevice() { 1081 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1082 } 1083 1084 /** 1085 * Used by persistent processes to determine if they are running on a 1086 * higher-end device so should be okay using hardware drawing acceleration 1087 * (which tends to consume a lot more RAM). 1088 * @hide 1089 */ 1090 static public boolean isHighEndGfx() { 1091 return !isLowRamDeviceStatic() && 1092 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1093 } 1094 1095 /** 1096 * Return the maximum number of recents entries that we will maintain and show. 1097 * @hide 1098 */ 1099 static public int getMaxRecentTasksStatic() { 1100 if (gMaxRecentTasks < 0) { 1101 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1102 } 1103 return gMaxRecentTasks; 1104 } 1105 1106 /** 1107 * Return the default limit on the number of recents that an app can make. 1108 * @hide 1109 */ 1110 static public int getDefaultAppRecentsLimitStatic() { 1111 return getMaxRecentTasksStatic() / 6; 1112 } 1113 1114 /** 1115 * Return the maximum limit on the number of recents that an app can make. 1116 * @hide 1117 */ 1118 static public int getMaxAppRecentsLimitStatic() { 1119 return getMaxRecentTasksStatic() / 2; 1120 } 1121 1122 /** 1123 * Returns true if the system supports at least one form of multi-window. 1124 * E.g. freeform, split-screen, picture-in-picture. 1125 * @hide 1126 */ 1127 static public boolean supportsMultiWindow() { 1128 return !isLowRamDeviceStatic() 1129 && Resources.getSystem().getBoolean( 1130 com.android.internal.R.bool.config_supportsMultiWindow); 1131 } 1132 1133 /** 1134 * Returns true if the system supports split screen multi-window. 1135 * @hide 1136 */ 1137 static public boolean supportsSplitScreenMultiWindow() { 1138 return supportsMultiWindow() 1139 && Resources.getSystem().getBoolean( 1140 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1141 } 1142 1143 /** 1144 * Return the number of actions that will be displayed in the picture-in-picture UI when the 1145 * user interacts with the activity currently in picture-in-picture mode. This number may change 1146 * if the global configuration changes (ie. if the device is plugged into an external display). 1147 * 1148 * TO BE REMOVED 1149 */ 1150 @Deprecated 1151 public static int getMaxNumPictureInPictureActions() { 1152 return 3; 1153 } 1154 1155 /** 1156 * Information you can set and retrieve about the current activity within the recent task list. 1157 */ 1158 public static class TaskDescription implements Parcelable { 1159 /** @hide */ 1160 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1161 private static final String ATTR_TASKDESCRIPTIONLABEL = 1162 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1163 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1164 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1165 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1166 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1167 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1168 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1169 1170 private String mLabel; 1171 private Bitmap mIcon; 1172 private String mIconFilename; 1173 private int mColorPrimary; 1174 private int mColorBackground; 1175 private int mStatusBarColor; 1176 private int mNavigationBarColor; 1177 1178 /** 1179 * Creates the TaskDescription to the specified values. 1180 * 1181 * @param label A label and description of the current state of this task. 1182 * @param icon An icon that represents the current state of this task. 1183 * @param colorPrimary A color to override the theme's primary color. This color must be 1184 * opaque. 1185 */ 1186 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1187 this(label, icon, null, colorPrimary, 0, 0, 0); 1188 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1189 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1190 } 1191 } 1192 1193 /** 1194 * Creates the TaskDescription to the specified values. 1195 * 1196 * @param label A label and description of the current state of this activity. 1197 * @param icon An icon that represents the current state of this activity. 1198 */ 1199 public TaskDescription(String label, Bitmap icon) { 1200 this(label, icon, null, 0, 0, 0, 0); 1201 } 1202 1203 /** 1204 * Creates the TaskDescription to the specified values. 1205 * 1206 * @param label A label and description of the current state of this activity. 1207 */ 1208 public TaskDescription(String label) { 1209 this(label, null, null, 0, 0, 0, 0); 1210 } 1211 1212 /** 1213 * Creates an empty TaskDescription. 1214 */ 1215 public TaskDescription() { 1216 this(null, null, null, 0, 0, 0, 0); 1217 } 1218 1219 /** @hide */ 1220 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1221 int colorBackground, int statusBarColor, int navigationBarColor) { 1222 mLabel = label; 1223 mIcon = icon; 1224 mIconFilename = iconFilename; 1225 mColorPrimary = colorPrimary; 1226 mColorBackground = colorBackground; 1227 mStatusBarColor = statusBarColor; 1228 mNavigationBarColor = navigationBarColor; 1229 } 1230 1231 /** 1232 * Creates a copy of another TaskDescription. 1233 */ 1234 public TaskDescription(TaskDescription td) { 1235 copyFrom(td); 1236 } 1237 1238 /** 1239 * Copies this the values from another TaskDescription. 1240 * @hide 1241 */ 1242 public void copyFrom(TaskDescription other) { 1243 mLabel = other.mLabel; 1244 mIcon = other.mIcon; 1245 mIconFilename = other.mIconFilename; 1246 mColorPrimary = other.mColorPrimary; 1247 mColorBackground = other.mColorBackground; 1248 mStatusBarColor = other.mStatusBarColor; 1249 mNavigationBarColor = other.mNavigationBarColor; 1250 } 1251 1252 /** 1253 * Copies this the values from another TaskDescription, but preserves the hidden fields 1254 * if they weren't set on {@code other} 1255 * @hide 1256 */ 1257 public void copyFromPreserveHiddenFields(TaskDescription other) { 1258 mLabel = other.mLabel; 1259 mIcon = other.mIcon; 1260 mIconFilename = other.mIconFilename; 1261 mColorPrimary = other.mColorPrimary; 1262 if (other.mColorBackground != 0) { 1263 mColorBackground = other.mColorBackground; 1264 } 1265 if (other.mStatusBarColor != 0) { 1266 mStatusBarColor = other.mStatusBarColor; 1267 } 1268 if (other.mNavigationBarColor != 0) { 1269 mNavigationBarColor = other.mNavigationBarColor; 1270 } 1271 } 1272 1273 private TaskDescription(Parcel source) { 1274 readFromParcel(source); 1275 } 1276 1277 /** 1278 * Sets the label for this task description. 1279 * @hide 1280 */ 1281 public void setLabel(String label) { 1282 mLabel = label; 1283 } 1284 1285 /** 1286 * Sets the primary color for this task description. 1287 * @hide 1288 */ 1289 public void setPrimaryColor(int primaryColor) { 1290 // Ensure that the given color is valid 1291 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1292 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1293 } 1294 mColorPrimary = primaryColor; 1295 } 1296 1297 /** 1298 * Sets the background color for this task description. 1299 * @hide 1300 */ 1301 public void setBackgroundColor(int backgroundColor) { 1302 // Ensure that the given color is valid 1303 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1304 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1305 } 1306 mColorBackground = backgroundColor; 1307 } 1308 1309 /** 1310 * @hide 1311 */ 1312 public void setStatusBarColor(int statusBarColor) { 1313 mStatusBarColor = statusBarColor; 1314 } 1315 1316 /** 1317 * @hide 1318 */ 1319 public void setNavigationBarColor(int navigationBarColor) { 1320 mNavigationBarColor = navigationBarColor; 1321 } 1322 1323 /** 1324 * Sets the icon for this task description. 1325 * @hide 1326 */ 1327 public void setIcon(Bitmap icon) { 1328 mIcon = icon; 1329 } 1330 1331 /** 1332 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1333 * bitmap. 1334 * @hide 1335 */ 1336 public void setIconFilename(String iconFilename) { 1337 mIconFilename = iconFilename; 1338 mIcon = null; 1339 } 1340 1341 /** 1342 * @return The label and description of the current state of this task. 1343 */ 1344 public String getLabel() { 1345 return mLabel; 1346 } 1347 1348 /** 1349 * @return The icon that represents the current state of this task. 1350 */ 1351 public Bitmap getIcon() { 1352 if (mIcon != null) { 1353 return mIcon; 1354 } 1355 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1356 } 1357 1358 /** @hide */ 1359 public String getIconFilename() { 1360 return mIconFilename; 1361 } 1362 1363 /** @hide */ 1364 public Bitmap getInMemoryIcon() { 1365 return mIcon; 1366 } 1367 1368 /** @hide */ 1369 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1370 if (iconFilename != null) { 1371 try { 1372 return getService().getTaskDescriptionIcon(iconFilename, 1373 userId); 1374 } catch (RemoteException e) { 1375 throw e.rethrowFromSystemServer(); 1376 } 1377 } 1378 return null; 1379 } 1380 1381 /** 1382 * @return The color override on the theme's primary color. 1383 */ 1384 public int getPrimaryColor() { 1385 return mColorPrimary; 1386 } 1387 1388 /** 1389 * @return The background color. 1390 * @hide 1391 */ 1392 public int getBackgroundColor() { 1393 return mColorBackground; 1394 } 1395 1396 /** 1397 * @hide 1398 */ 1399 public int getStatusBarColor() { 1400 return mStatusBarColor; 1401 } 1402 1403 /** 1404 * @hide 1405 */ 1406 public int getNavigationBarColor() { 1407 return mNavigationBarColor; 1408 } 1409 1410 /** @hide */ 1411 public void saveToXml(XmlSerializer out) throws IOException { 1412 if (mLabel != null) { 1413 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1414 } 1415 if (mColorPrimary != 0) { 1416 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1417 Integer.toHexString(mColorPrimary)); 1418 } 1419 if (mColorBackground != 0) { 1420 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1421 Integer.toHexString(mColorBackground)); 1422 } 1423 if (mIconFilename != null) { 1424 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1425 } 1426 } 1427 1428 /** @hide */ 1429 public void restoreFromXml(String attrName, String attrValue) { 1430 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1431 setLabel(attrValue); 1432 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1433 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1434 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1435 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1436 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1437 setIconFilename(attrValue); 1438 } 1439 } 1440 1441 @Override 1442 public int describeContents() { 1443 return 0; 1444 } 1445 1446 @Override 1447 public void writeToParcel(Parcel dest, int flags) { 1448 if (mLabel == null) { 1449 dest.writeInt(0); 1450 } else { 1451 dest.writeInt(1); 1452 dest.writeString(mLabel); 1453 } 1454 if (mIcon == null) { 1455 dest.writeInt(0); 1456 } else { 1457 dest.writeInt(1); 1458 mIcon.writeToParcel(dest, 0); 1459 } 1460 dest.writeInt(mColorPrimary); 1461 dest.writeInt(mColorBackground); 1462 dest.writeInt(mStatusBarColor); 1463 dest.writeInt(mNavigationBarColor); 1464 if (mIconFilename == null) { 1465 dest.writeInt(0); 1466 } else { 1467 dest.writeInt(1); 1468 dest.writeString(mIconFilename); 1469 } 1470 } 1471 1472 public void readFromParcel(Parcel source) { 1473 mLabel = source.readInt() > 0 ? source.readString() : null; 1474 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1475 mColorPrimary = source.readInt(); 1476 mColorBackground = source.readInt(); 1477 mStatusBarColor = source.readInt(); 1478 mNavigationBarColor = source.readInt(); 1479 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1480 } 1481 1482 public static final Creator<TaskDescription> CREATOR 1483 = new Creator<TaskDescription>() { 1484 public TaskDescription createFromParcel(Parcel source) { 1485 return new TaskDescription(source); 1486 } 1487 public TaskDescription[] newArray(int size) { 1488 return new TaskDescription[size]; 1489 } 1490 }; 1491 1492 @Override 1493 public String toString() { 1494 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1495 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1496 " colorBackground: " + mColorBackground + 1497 " statusBarColor: " + mColorBackground + 1498 " navigationBarColor: " + mNavigationBarColor; 1499 } 1500 } 1501 1502 /** 1503 * Information you can retrieve about tasks that the user has most recently 1504 * started or visited. 1505 */ 1506 public static class RecentTaskInfo implements Parcelable { 1507 /** 1508 * If this task is currently running, this is the identifier for it. 1509 * If it is not running, this will be -1. 1510 */ 1511 public int id; 1512 1513 /** 1514 * The true identifier of this task, valid even if it is not running. 1515 */ 1516 public int persistentId; 1517 1518 /** 1519 * The original Intent used to launch the task. You can use this 1520 * Intent to re-launch the task (if it is no longer running) or bring 1521 * the current task to the front. 1522 */ 1523 public Intent baseIntent; 1524 1525 /** 1526 * If this task was started from an alias, this is the actual 1527 * activity component that was initially started; the component of 1528 * the baseIntent in this case is the name of the actual activity 1529 * implementation that the alias referred to. Otherwise, this is null. 1530 */ 1531 public ComponentName origActivity; 1532 1533 /** 1534 * The actual activity component that started the task. 1535 * @hide 1536 */ 1537 @Nullable 1538 public ComponentName realActivity; 1539 1540 /** 1541 * Description of the task's last state. 1542 */ 1543 public CharSequence description; 1544 1545 /** 1546 * The id of the ActivityStack this Task was on most recently. 1547 * @hide 1548 */ 1549 public int stackId; 1550 1551 /** 1552 * The id of the user the task was running as. 1553 * @hide 1554 */ 1555 public int userId; 1556 1557 /** 1558 * The first time this task was active. 1559 * @hide 1560 */ 1561 public long firstActiveTime; 1562 1563 /** 1564 * The last time this task was active. 1565 * @hide 1566 */ 1567 public long lastActiveTime; 1568 1569 /** 1570 * The recent activity values for the highest activity in the stack to have set the values. 1571 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1572 */ 1573 public TaskDescription taskDescription; 1574 1575 /** 1576 * Task affiliation for grouping with other tasks. 1577 */ 1578 public int affiliatedTaskId; 1579 1580 /** 1581 * Task affiliation color of the source task with the affiliated task id. 1582 * 1583 * @hide 1584 */ 1585 public int affiliatedTaskColor; 1586 1587 /** 1588 * The component launched as the first activity in the task. 1589 * This can be considered the "application" of this task. 1590 */ 1591 public ComponentName baseActivity; 1592 1593 /** 1594 * The activity component at the top of the history stack of the task. 1595 * This is what the user is currently doing. 1596 */ 1597 public ComponentName topActivity; 1598 1599 /** 1600 * Number of activities in this task. 1601 */ 1602 public int numActivities; 1603 1604 /** 1605 * The bounds of the task. 1606 * @hide 1607 */ 1608 public Rect bounds; 1609 1610 /** 1611 * True if the task can go in the docked stack. 1612 * @hide 1613 */ 1614 public boolean supportsSplitScreenMultiWindow; 1615 1616 /** 1617 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1618 * @hide 1619 */ 1620 public int resizeMode; 1621 1622 public RecentTaskInfo() { 1623 } 1624 1625 @Override 1626 public int describeContents() { 1627 return 0; 1628 } 1629 1630 @Override 1631 public void writeToParcel(Parcel dest, int flags) { 1632 dest.writeInt(id); 1633 dest.writeInt(persistentId); 1634 if (baseIntent != null) { 1635 dest.writeInt(1); 1636 baseIntent.writeToParcel(dest, 0); 1637 } else { 1638 dest.writeInt(0); 1639 } 1640 ComponentName.writeToParcel(origActivity, dest); 1641 ComponentName.writeToParcel(realActivity, dest); 1642 TextUtils.writeToParcel(description, dest, 1643 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1644 if (taskDescription != null) { 1645 dest.writeInt(1); 1646 taskDescription.writeToParcel(dest, 0); 1647 } else { 1648 dest.writeInt(0); 1649 } 1650 dest.writeInt(stackId); 1651 dest.writeInt(userId); 1652 dest.writeLong(firstActiveTime); 1653 dest.writeLong(lastActiveTime); 1654 dest.writeInt(affiliatedTaskId); 1655 dest.writeInt(affiliatedTaskColor); 1656 ComponentName.writeToParcel(baseActivity, dest); 1657 ComponentName.writeToParcel(topActivity, dest); 1658 dest.writeInt(numActivities); 1659 if (bounds != null) { 1660 dest.writeInt(1); 1661 bounds.writeToParcel(dest, 0); 1662 } else { 1663 dest.writeInt(0); 1664 } 1665 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1666 dest.writeInt(resizeMode); 1667 } 1668 1669 public void readFromParcel(Parcel source) { 1670 id = source.readInt(); 1671 persistentId = source.readInt(); 1672 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1673 origActivity = ComponentName.readFromParcel(source); 1674 realActivity = ComponentName.readFromParcel(source); 1675 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1676 taskDescription = source.readInt() > 0 ? 1677 TaskDescription.CREATOR.createFromParcel(source) : null; 1678 stackId = source.readInt(); 1679 userId = source.readInt(); 1680 firstActiveTime = source.readLong(); 1681 lastActiveTime = source.readLong(); 1682 affiliatedTaskId = source.readInt(); 1683 affiliatedTaskColor = source.readInt(); 1684 baseActivity = ComponentName.readFromParcel(source); 1685 topActivity = ComponentName.readFromParcel(source); 1686 numActivities = source.readInt(); 1687 bounds = source.readInt() > 0 ? 1688 Rect.CREATOR.createFromParcel(source) : null; 1689 supportsSplitScreenMultiWindow = source.readInt() == 1; 1690 resizeMode = source.readInt(); 1691 } 1692 1693 public static final Creator<RecentTaskInfo> CREATOR 1694 = new Creator<RecentTaskInfo>() { 1695 public RecentTaskInfo createFromParcel(Parcel source) { 1696 return new RecentTaskInfo(source); 1697 } 1698 public RecentTaskInfo[] newArray(int size) { 1699 return new RecentTaskInfo[size]; 1700 } 1701 }; 1702 1703 private RecentTaskInfo(Parcel source) { 1704 readFromParcel(source); 1705 } 1706 } 1707 1708 /** 1709 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1710 * that have set their 1711 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1712 */ 1713 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1714 1715 /** 1716 * Provides a list that does not contain any 1717 * recent tasks that currently are not available to the user. 1718 */ 1719 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1720 1721 /** 1722 * Provides a list that contains recent tasks for all 1723 * profiles of a user. 1724 * @hide 1725 */ 1726 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1727 1728 /** 1729 * Ignores all tasks that are on the home stack. 1730 * @hide 1731 */ 1732 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1733 1734 /** 1735 * Ignores the top task in the docked stack. 1736 * @hide 1737 */ 1738 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1739 1740 /** 1741 * Ignores all tasks that are on the pinned stack. 1742 * @hide 1743 */ 1744 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1745 1746 /** 1747 * <p></p>Return a list of the tasks that the user has recently launched, with 1748 * the most recent being first and older ones after in order. 1749 * 1750 * <p><b>Note: this method is only intended for debugging and presenting 1751 * task management user interfaces</b>. This should never be used for 1752 * core logic in an application, such as deciding between different 1753 * behaviors based on the information found here. Such uses are 1754 * <em>not</em> supported, and will likely break in the future. For 1755 * example, if multiple applications can be actively running at the 1756 * same time, assumptions made about the meaning of the data here for 1757 * purposes of control flow will be incorrect.</p> 1758 * 1759 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1760 * no longer available to third party applications: the introduction of 1761 * document-centric recents means 1762 * it can leak personal information to the caller. For backwards compatibility, 1763 * it will still return a small subset of its data: at least the caller's 1764 * own tasks (though see {@link #getAppTasks()} for the correct supported 1765 * way to retrieve that information), and possibly some other tasks 1766 * such as home that are known to not be sensitive. 1767 * 1768 * @param maxNum The maximum number of entries to return in the list. The 1769 * actual number returned may be smaller, depending on how many tasks the 1770 * user has started and the maximum number the system can remember. 1771 * @param flags Information about what to return. May be any combination 1772 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1773 * 1774 * @return Returns a list of RecentTaskInfo records describing each of 1775 * the recent tasks. 1776 */ 1777 @Deprecated 1778 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1779 throws SecurityException { 1780 try { 1781 return getService().getRecentTasks(maxNum, 1782 flags, UserHandle.myUserId()).getList(); 1783 } catch (RemoteException e) { 1784 throw e.rethrowFromSystemServer(); 1785 } 1786 } 1787 1788 /** 1789 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1790 * specific user. It requires holding 1791 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1792 * @param maxNum The maximum number of entries to return in the list. The 1793 * actual number returned may be smaller, depending on how many tasks the 1794 * user has started and the maximum number the system can remember. 1795 * @param flags Information about what to return. May be any combination 1796 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1797 * 1798 * @return Returns a list of RecentTaskInfo records describing each of 1799 * the recent tasks. Most recently activated tasks go first. 1800 * 1801 * @hide 1802 */ 1803 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1804 throws SecurityException { 1805 try { 1806 return getService().getRecentTasks(maxNum, 1807 flags, userId).getList(); 1808 } catch (RemoteException e) { 1809 throw e.rethrowFromSystemServer(); 1810 } 1811 } 1812 1813 /** 1814 * Information you can retrieve about a particular task that is currently 1815 * "running" in the system. Note that a running task does not mean the 1816 * given task actually has a process it is actively running in; it simply 1817 * means that the user has gone to it and never closed it, but currently 1818 * the system may have killed its process and is only holding on to its 1819 * last state in order to restart it when the user returns. 1820 */ 1821 public static class RunningTaskInfo implements Parcelable { 1822 /** 1823 * A unique identifier for this task. 1824 */ 1825 public int id; 1826 1827 /** 1828 * The stack that currently contains this task. 1829 * @hide 1830 */ 1831 public int stackId; 1832 1833 /** 1834 * The component launched as the first activity in the task. This can 1835 * be considered the "application" of this task. 1836 */ 1837 public ComponentName baseActivity; 1838 1839 /** 1840 * The activity component at the top of the history stack of the task. 1841 * This is what the user is currently doing. 1842 */ 1843 public ComponentName topActivity; 1844 1845 /** 1846 * Thumbnail representation of the task's current state. Currently 1847 * always null. 1848 */ 1849 public Bitmap thumbnail; 1850 1851 /** 1852 * Description of the task's current state. 1853 */ 1854 public CharSequence description; 1855 1856 /** 1857 * Number of activities in this task. 1858 */ 1859 public int numActivities; 1860 1861 /** 1862 * Number of activities that are currently running (not stopped 1863 * and persisted) in this task. 1864 */ 1865 public int numRunning; 1866 1867 /** 1868 * Last time task was run. For sorting. 1869 * @hide 1870 */ 1871 public long lastActiveTime; 1872 1873 /** 1874 * True if the task can go in the docked stack. 1875 * @hide 1876 */ 1877 public boolean supportsSplitScreenMultiWindow; 1878 1879 /** 1880 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1881 * @hide 1882 */ 1883 public int resizeMode; 1884 1885 public RunningTaskInfo() { 1886 } 1887 1888 public int describeContents() { 1889 return 0; 1890 } 1891 1892 public void writeToParcel(Parcel dest, int flags) { 1893 dest.writeInt(id); 1894 dest.writeInt(stackId); 1895 ComponentName.writeToParcel(baseActivity, dest); 1896 ComponentName.writeToParcel(topActivity, dest); 1897 if (thumbnail != null) { 1898 dest.writeInt(1); 1899 thumbnail.writeToParcel(dest, 0); 1900 } else { 1901 dest.writeInt(0); 1902 } 1903 TextUtils.writeToParcel(description, dest, 1904 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1905 dest.writeInt(numActivities); 1906 dest.writeInt(numRunning); 1907 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1908 dest.writeInt(resizeMode); 1909 } 1910 1911 public void readFromParcel(Parcel source) { 1912 id = source.readInt(); 1913 stackId = source.readInt(); 1914 baseActivity = ComponentName.readFromParcel(source); 1915 topActivity = ComponentName.readFromParcel(source); 1916 if (source.readInt() != 0) { 1917 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1918 } else { 1919 thumbnail = null; 1920 } 1921 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1922 numActivities = source.readInt(); 1923 numRunning = source.readInt(); 1924 supportsSplitScreenMultiWindow = source.readInt() != 0; 1925 resizeMode = source.readInt(); 1926 } 1927 1928 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1929 public RunningTaskInfo createFromParcel(Parcel source) { 1930 return new RunningTaskInfo(source); 1931 } 1932 public RunningTaskInfo[] newArray(int size) { 1933 return new RunningTaskInfo[size]; 1934 } 1935 }; 1936 1937 private RunningTaskInfo(Parcel source) { 1938 readFromParcel(source); 1939 } 1940 } 1941 1942 /** 1943 * Get the list of tasks associated with the calling application. 1944 * 1945 * @return The list of tasks associated with the application making this call. 1946 * @throws SecurityException 1947 */ 1948 public List<ActivityManager.AppTask> getAppTasks() { 1949 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1950 List<IBinder> appTasks; 1951 try { 1952 appTasks = getService().getAppTasks(mContext.getPackageName()); 1953 } catch (RemoteException e) { 1954 throw e.rethrowFromSystemServer(); 1955 } 1956 int numAppTasks = appTasks.size(); 1957 for (int i = 0; i < numAppTasks; i++) { 1958 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1959 } 1960 return tasks; 1961 } 1962 1963 /** 1964 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1965 * with {@link #addAppTask}. 1966 */ 1967 public Size getAppTaskThumbnailSize() { 1968 synchronized (this) { 1969 ensureAppTaskThumbnailSizeLocked(); 1970 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1971 } 1972 } 1973 1974 private void ensureAppTaskThumbnailSizeLocked() { 1975 if (mAppTaskThumbnailSize == null) { 1976 try { 1977 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1978 } catch (RemoteException e) { 1979 throw e.rethrowFromSystemServer(); 1980 } 1981 } 1982 } 1983 1984 /** 1985 * Add a new {@link AppTask} for the calling application. This will create a new 1986 * recents entry that is added to the <b>end</b> of all existing recents. 1987 * 1988 * @param activity The activity that is adding the entry. This is used to help determine 1989 * the context that the new recents entry will be in. 1990 * @param intent The Intent that describes the recents entry. This is the same Intent that 1991 * you would have used to launch the activity for it. In generally you will want to set 1992 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1993 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1994 * entry will exist without an activity, so it doesn't make sense to not retain it when 1995 * its activity disappears. The given Intent here also must have an explicit ComponentName 1996 * set on it. 1997 * @param description Optional additional description information. 1998 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1999 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 2000 * recreated in your process, probably in a way you don't like, before the recents entry 2001 * is added. 2002 * 2003 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 2004 * most likely cause of failure is that there is no more room for more tasks for your app. 2005 */ 2006 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 2007 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 2008 Point size; 2009 synchronized (this) { 2010 ensureAppTaskThumbnailSizeLocked(); 2011 size = mAppTaskThumbnailSize; 2012 } 2013 final int tw = thumbnail.getWidth(); 2014 final int th = thumbnail.getHeight(); 2015 if (tw != size.x || th != size.y) { 2016 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2017 2018 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2019 float scale; 2020 float dx = 0, dy = 0; 2021 if (tw * size.x > size.y * th) { 2022 scale = (float) size.x / (float) th; 2023 dx = (size.y - tw * scale) * 0.5f; 2024 } else { 2025 scale = (float) size.y / (float) tw; 2026 dy = (size.x - th * scale) * 0.5f; 2027 } 2028 Matrix matrix = new Matrix(); 2029 matrix.setScale(scale, scale); 2030 matrix.postTranslate((int) (dx + 0.5f), 0); 2031 2032 Canvas canvas = new Canvas(bm); 2033 canvas.drawBitmap(thumbnail, matrix, null); 2034 canvas.setBitmap(null); 2035 2036 thumbnail = bm; 2037 } 2038 if (description == null) { 2039 description = new TaskDescription(); 2040 } 2041 try { 2042 return getService().addAppTask(activity.getActivityToken(), 2043 intent, description, thumbnail); 2044 } catch (RemoteException e) { 2045 throw e.rethrowFromSystemServer(); 2046 } 2047 } 2048 2049 /** 2050 * Return a list of the tasks that are currently running, with 2051 * the most recent being first and older ones after in order. Note that 2052 * "running" does not mean any of the task's code is currently loaded or 2053 * activity -- the task may have been frozen by the system, so that it 2054 * can be restarted in its previous state when next brought to the 2055 * foreground. 2056 * 2057 * <p><b>Note: this method is only intended for debugging and presenting 2058 * task management user interfaces</b>. This should never be used for 2059 * core logic in an application, such as deciding between different 2060 * behaviors based on the information found here. Such uses are 2061 * <em>not</em> supported, and will likely break in the future. For 2062 * example, if multiple applications can be actively running at the 2063 * same time, assumptions made about the meaning of the data here for 2064 * purposes of control flow will be incorrect.</p> 2065 * 2066 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2067 * is no longer available to third party 2068 * applications: the introduction of document-centric recents means 2069 * it can leak person information to the caller. For backwards compatibility, 2070 * it will still retu rn a small subset of its data: at least the caller's 2071 * own tasks, and possibly some other tasks 2072 * such as home that are known to not be sensitive. 2073 * 2074 * @param maxNum The maximum number of entries to return in the list. The 2075 * actual number returned may be smaller, depending on how many tasks the 2076 * user has started. 2077 * 2078 * @return Returns a list of RunningTaskInfo records describing each of 2079 * the running tasks. 2080 */ 2081 @Deprecated 2082 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2083 throws SecurityException { 2084 try { 2085 return getService().getTasks(maxNum, 0); 2086 } catch (RemoteException e) { 2087 throw e.rethrowFromSystemServer(); 2088 } 2089 } 2090 2091 /** 2092 * Completely remove the given task. 2093 * 2094 * @param taskId Identifier of the task to be removed. 2095 * @return Returns true if the given task was found and removed. 2096 * 2097 * @hide 2098 */ 2099 public boolean removeTask(int taskId) throws SecurityException { 2100 try { 2101 return getService().removeTask(taskId); 2102 } catch (RemoteException e) { 2103 throw e.rethrowFromSystemServer(); 2104 } 2105 } 2106 2107 /** 2108 * Metadata related to the {@link TaskThumbnail}. 2109 * 2110 * @hide 2111 */ 2112 public static class TaskThumbnailInfo implements Parcelable { 2113 /** @hide */ 2114 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2115 private static final String ATTR_TASK_WIDTH = 2116 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2117 private static final String ATTR_TASK_HEIGHT = 2118 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2119 private static final String ATTR_SCREEN_ORIENTATION = 2120 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2121 2122 public int taskWidth; 2123 public int taskHeight; 2124 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2125 2126 public TaskThumbnailInfo() { 2127 // Do nothing 2128 } 2129 2130 private TaskThumbnailInfo(Parcel source) { 2131 readFromParcel(source); 2132 } 2133 2134 /** 2135 * Resets this info state to the initial state. 2136 * @hide 2137 */ 2138 public void reset() { 2139 taskWidth = 0; 2140 taskHeight = 0; 2141 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2142 } 2143 2144 /** 2145 * Copies from another ThumbnailInfo. 2146 */ 2147 public void copyFrom(TaskThumbnailInfo o) { 2148 taskWidth = o.taskWidth; 2149 taskHeight = o.taskHeight; 2150 screenOrientation = o.screenOrientation; 2151 } 2152 2153 /** @hide */ 2154 public void saveToXml(XmlSerializer out) throws IOException { 2155 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2156 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2157 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2158 } 2159 2160 /** @hide */ 2161 public void restoreFromXml(String attrName, String attrValue) { 2162 if (ATTR_TASK_WIDTH.equals(attrName)) { 2163 taskWidth = Integer.parseInt(attrValue); 2164 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2165 taskHeight = Integer.parseInt(attrValue); 2166 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2167 screenOrientation = Integer.parseInt(attrValue); 2168 } 2169 } 2170 2171 public int describeContents() { 2172 return 0; 2173 } 2174 2175 public void writeToParcel(Parcel dest, int flags) { 2176 dest.writeInt(taskWidth); 2177 dest.writeInt(taskHeight); 2178 dest.writeInt(screenOrientation); 2179 } 2180 2181 public void readFromParcel(Parcel source) { 2182 taskWidth = source.readInt(); 2183 taskHeight = source.readInt(); 2184 screenOrientation = source.readInt(); 2185 } 2186 2187 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2188 public TaskThumbnailInfo createFromParcel(Parcel source) { 2189 return new TaskThumbnailInfo(source); 2190 } 2191 public TaskThumbnailInfo[] newArray(int size) { 2192 return new TaskThumbnailInfo[size]; 2193 } 2194 }; 2195 } 2196 2197 /** @hide */ 2198 public static class TaskThumbnail implements Parcelable { 2199 public Bitmap mainThumbnail; 2200 public ParcelFileDescriptor thumbnailFileDescriptor; 2201 public TaskThumbnailInfo thumbnailInfo; 2202 2203 public TaskThumbnail() { 2204 } 2205 2206 private TaskThumbnail(Parcel source) { 2207 readFromParcel(source); 2208 } 2209 2210 public int describeContents() { 2211 if (thumbnailFileDescriptor != null) { 2212 return thumbnailFileDescriptor.describeContents(); 2213 } 2214 return 0; 2215 } 2216 2217 public void writeToParcel(Parcel dest, int flags) { 2218 if (mainThumbnail != null) { 2219 dest.writeInt(1); 2220 mainThumbnail.writeToParcel(dest, flags); 2221 } else { 2222 dest.writeInt(0); 2223 } 2224 if (thumbnailFileDescriptor != null) { 2225 dest.writeInt(1); 2226 thumbnailFileDescriptor.writeToParcel(dest, flags); 2227 } else { 2228 dest.writeInt(0); 2229 } 2230 if (thumbnailInfo != null) { 2231 dest.writeInt(1); 2232 thumbnailInfo.writeToParcel(dest, flags); 2233 } else { 2234 dest.writeInt(0); 2235 } 2236 } 2237 2238 public void readFromParcel(Parcel source) { 2239 if (source.readInt() != 0) { 2240 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2241 } else { 2242 mainThumbnail = null; 2243 } 2244 if (source.readInt() != 0) { 2245 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2246 } else { 2247 thumbnailFileDescriptor = null; 2248 } 2249 if (source.readInt() != 0) { 2250 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2251 } else { 2252 thumbnailInfo = null; 2253 } 2254 } 2255 2256 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2257 public TaskThumbnail createFromParcel(Parcel source) { 2258 return new TaskThumbnail(source); 2259 } 2260 public TaskThumbnail[] newArray(int size) { 2261 return new TaskThumbnail[size]; 2262 } 2263 }; 2264 } 2265 2266 /** 2267 * Represents a task snapshot. 2268 * @hide 2269 */ 2270 public static class TaskSnapshot implements Parcelable { 2271 2272 private final GraphicBuffer mSnapshot; 2273 private final int mOrientation; 2274 private final Rect mContentInsets; 2275 private final boolean mReducedResolution; 2276 private final float mScale; 2277 2278 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2279 boolean reducedResolution, float scale) { 2280 mSnapshot = snapshot; 2281 mOrientation = orientation; 2282 mContentInsets = new Rect(contentInsets); 2283 mReducedResolution = reducedResolution; 2284 mScale = scale; 2285 } 2286 2287 private TaskSnapshot(Parcel source) { 2288 mSnapshot = source.readParcelable(null /* classLoader */); 2289 mOrientation = source.readInt(); 2290 mContentInsets = source.readParcelable(null /* classLoader */); 2291 mReducedResolution = source.readBoolean(); 2292 mScale = source.readFloat(); 2293 } 2294 2295 /** 2296 * @return The graphic buffer representing the screenshot. 2297 */ 2298 public GraphicBuffer getSnapshot() { 2299 return mSnapshot; 2300 } 2301 2302 /** 2303 * @return The screen orientation the screenshot was taken in. 2304 */ 2305 public int getOrientation() { 2306 return mOrientation; 2307 } 2308 2309 /** 2310 * @return The system/content insets on the snapshot. These can be clipped off in order to 2311 * remove any areas behind system bars in the snapshot. 2312 */ 2313 public Rect getContentInsets() { 2314 return mContentInsets; 2315 } 2316 2317 /** 2318 * @return Whether this snapshot is a down-sampled version of the full resolution. 2319 */ 2320 public boolean isReducedResolution() { 2321 return mReducedResolution; 2322 } 2323 2324 /** 2325 * @return The scale this snapshot was taken in. 2326 */ 2327 public float getScale() { 2328 return mScale; 2329 } 2330 2331 @Override 2332 public int describeContents() { 2333 return 0; 2334 } 2335 2336 @Override 2337 public void writeToParcel(Parcel dest, int flags) { 2338 dest.writeParcelable(mSnapshot, 0); 2339 dest.writeInt(mOrientation); 2340 dest.writeParcelable(mContentInsets, 0); 2341 dest.writeBoolean(mReducedResolution); 2342 dest.writeFloat(mScale); 2343 } 2344 2345 @Override 2346 public String toString() { 2347 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2348 + " mContentInsets=" + mContentInsets.toShortString() 2349 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2350 } 2351 2352 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2353 public TaskSnapshot createFromParcel(Parcel source) { 2354 return new TaskSnapshot(source); 2355 } 2356 public TaskSnapshot[] newArray(int size) { 2357 return new TaskSnapshot[size]; 2358 } 2359 }; 2360 } 2361 2362 /** @hide */ 2363 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2364 try { 2365 return getService().getTaskThumbnail(id); 2366 } catch (RemoteException e) { 2367 throw e.rethrowFromSystemServer(); 2368 } 2369 } 2370 2371 /** @hide */ 2372 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2373 MOVE_TASK_WITH_HOME, 2374 MOVE_TASK_NO_USER_ACTION, 2375 }) 2376 @Retention(RetentionPolicy.SOURCE) 2377 public @interface MoveTaskFlags {} 2378 2379 /** 2380 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2381 * activity along with the task, so it is positioned immediately behind 2382 * the task. 2383 */ 2384 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2385 2386 /** 2387 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2388 * user-instigated action, so the current activity will not receive a 2389 * hint that the user is leaving. 2390 */ 2391 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2392 2393 /** 2394 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2395 * with a null options argument. 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 */ 2401 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2402 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2403 moveTaskToFront(taskId, flags, null); 2404 } 2405 2406 /** 2407 * Ask that the task associated with a given task ID be moved to the 2408 * front of the stack, so it is now visible to the user. 2409 * 2410 * @param taskId The identifier of the task to be moved, as found in 2411 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2412 * @param flags Additional operational flags. 2413 * @param options Additional options for the operation, either null or 2414 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2415 * Context.startActivity(Intent, Bundle)}. 2416 */ 2417 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2418 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2419 try { 2420 getService().moveTaskToFront(taskId, flags, options); 2421 } catch (RemoteException e) { 2422 throw e.rethrowFromSystemServer(); 2423 } 2424 } 2425 2426 /** 2427 * Information you can retrieve about a particular Service that is 2428 * currently running in the system. 2429 */ 2430 public static class RunningServiceInfo implements Parcelable { 2431 /** 2432 * The service component. 2433 */ 2434 public ComponentName service; 2435 2436 /** 2437 * If non-zero, this is the process the service is running in. 2438 */ 2439 public int pid; 2440 2441 /** 2442 * The UID that owns this service. 2443 */ 2444 public int uid; 2445 2446 /** 2447 * The name of the process this service runs in. 2448 */ 2449 public String process; 2450 2451 /** 2452 * Set to true if the service has asked to run as a foreground process. 2453 */ 2454 public boolean foreground; 2455 2456 /** 2457 * The time when the service was first made active, either by someone 2458 * starting or binding to it. This 2459 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2460 */ 2461 public long activeSince; 2462 2463 /** 2464 * Set to true if this service has been explicitly started. 2465 */ 2466 public boolean started; 2467 2468 /** 2469 * Number of clients connected to the service. 2470 */ 2471 public int clientCount; 2472 2473 /** 2474 * Number of times the service's process has crashed while the service 2475 * is running. 2476 */ 2477 public int crashCount; 2478 2479 /** 2480 * The time when there was last activity in the service (either 2481 * explicit requests to start it or clients binding to it). This 2482 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2483 */ 2484 public long lastActivityTime; 2485 2486 /** 2487 * If non-zero, this service is not currently running, but scheduled to 2488 * restart at the given time. 2489 */ 2490 public long restarting; 2491 2492 /** 2493 * Bit for {@link #flags}: set if this service has been 2494 * explicitly started. 2495 */ 2496 public static final int FLAG_STARTED = 1<<0; 2497 2498 /** 2499 * Bit for {@link #flags}: set if the service has asked to 2500 * run as a foreground process. 2501 */ 2502 public static final int FLAG_FOREGROUND = 1<<1; 2503 2504 /** 2505 * Bit for {@link #flags}: set if the service is running in a 2506 * core system process. 2507 */ 2508 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2509 2510 /** 2511 * Bit for {@link #flags}: set if the service is running in a 2512 * persistent process. 2513 */ 2514 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2515 2516 /** 2517 * Running flags. 2518 */ 2519 public int flags; 2520 2521 /** 2522 * For special services that are bound to by system code, this is 2523 * the package that holds the binding. 2524 */ 2525 public String clientPackage; 2526 2527 /** 2528 * For special services that are bound to by system code, this is 2529 * a string resource providing a user-visible label for who the 2530 * client is. 2531 */ 2532 public int clientLabel; 2533 2534 public RunningServiceInfo() { 2535 } 2536 2537 public int describeContents() { 2538 return 0; 2539 } 2540 2541 public void writeToParcel(Parcel dest, int flags) { 2542 ComponentName.writeToParcel(service, dest); 2543 dest.writeInt(pid); 2544 dest.writeInt(uid); 2545 dest.writeString(process); 2546 dest.writeInt(foreground ? 1 : 0); 2547 dest.writeLong(activeSince); 2548 dest.writeInt(started ? 1 : 0); 2549 dest.writeInt(clientCount); 2550 dest.writeInt(crashCount); 2551 dest.writeLong(lastActivityTime); 2552 dest.writeLong(restarting); 2553 dest.writeInt(this.flags); 2554 dest.writeString(clientPackage); 2555 dest.writeInt(clientLabel); 2556 } 2557 2558 public void readFromParcel(Parcel source) { 2559 service = ComponentName.readFromParcel(source); 2560 pid = source.readInt(); 2561 uid = source.readInt(); 2562 process = source.readString(); 2563 foreground = source.readInt() != 0; 2564 activeSince = source.readLong(); 2565 started = source.readInt() != 0; 2566 clientCount = source.readInt(); 2567 crashCount = source.readInt(); 2568 lastActivityTime = source.readLong(); 2569 restarting = source.readLong(); 2570 flags = source.readInt(); 2571 clientPackage = source.readString(); 2572 clientLabel = source.readInt(); 2573 } 2574 2575 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2576 public RunningServiceInfo createFromParcel(Parcel source) { 2577 return new RunningServiceInfo(source); 2578 } 2579 public RunningServiceInfo[] newArray(int size) { 2580 return new RunningServiceInfo[size]; 2581 } 2582 }; 2583 2584 private RunningServiceInfo(Parcel source) { 2585 readFromParcel(source); 2586 } 2587 } 2588 2589 /** 2590 * Return a list of the services that are currently running. 2591 * 2592 * <p><b>Note: this method is only intended for debugging or implementing 2593 * service management type user interfaces.</b></p> 2594 * 2595 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2596 * is no longer available to third party applications. For backwards compatibility, 2597 * it will still return the caller's own services. 2598 * 2599 * @param maxNum The maximum number of entries to return in the list. The 2600 * actual number returned may be smaller, depending on how many services 2601 * are running. 2602 * 2603 * @return Returns a list of RunningServiceInfo records describing each of 2604 * the running tasks. 2605 */ 2606 @Deprecated 2607 public List<RunningServiceInfo> getRunningServices(int maxNum) 2608 throws SecurityException { 2609 try { 2610 return getService() 2611 .getServices(maxNum, 0); 2612 } catch (RemoteException e) { 2613 throw e.rethrowFromSystemServer(); 2614 } 2615 } 2616 2617 /** 2618 * Returns a PendingIntent you can start to show a control panel for the 2619 * given running service. If the service does not have a control panel, 2620 * null is returned. 2621 */ 2622 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2623 throws SecurityException { 2624 try { 2625 return getService() 2626 .getRunningServiceControlPanel(service); 2627 } catch (RemoteException e) { 2628 throw e.rethrowFromSystemServer(); 2629 } 2630 } 2631 2632 /** 2633 * Information you can retrieve about the available memory through 2634 * {@link ActivityManager#getMemoryInfo}. 2635 */ 2636 public static class MemoryInfo implements Parcelable { 2637 /** 2638 * The available memory on the system. This number should not 2639 * be considered absolute: due to the nature of the kernel, a significant 2640 * portion of this memory is actually in use and needed for the overall 2641 * system to run well. 2642 */ 2643 public long availMem; 2644 2645 /** 2646 * The total memory accessible by the kernel. This is basically the 2647 * RAM size of the device, not including below-kernel fixed allocations 2648 * like DMA buffers, RAM for the baseband CPU, etc. 2649 */ 2650 public long totalMem; 2651 2652 /** 2653 * The threshold of {@link #availMem} at which we consider memory to be 2654 * low and start killing background services and other non-extraneous 2655 * processes. 2656 */ 2657 public long threshold; 2658 2659 /** 2660 * Set to true if the system considers itself to currently be in a low 2661 * memory situation. 2662 */ 2663 public boolean lowMemory; 2664 2665 /** @hide */ 2666 public long hiddenAppThreshold; 2667 /** @hide */ 2668 public long secondaryServerThreshold; 2669 /** @hide */ 2670 public long visibleAppThreshold; 2671 /** @hide */ 2672 public long foregroundAppThreshold; 2673 2674 public MemoryInfo() { 2675 } 2676 2677 public int describeContents() { 2678 return 0; 2679 } 2680 2681 public void writeToParcel(Parcel dest, int flags) { 2682 dest.writeLong(availMem); 2683 dest.writeLong(totalMem); 2684 dest.writeLong(threshold); 2685 dest.writeInt(lowMemory ? 1 : 0); 2686 dest.writeLong(hiddenAppThreshold); 2687 dest.writeLong(secondaryServerThreshold); 2688 dest.writeLong(visibleAppThreshold); 2689 dest.writeLong(foregroundAppThreshold); 2690 } 2691 2692 public void readFromParcel(Parcel source) { 2693 availMem = source.readLong(); 2694 totalMem = source.readLong(); 2695 threshold = source.readLong(); 2696 lowMemory = source.readInt() != 0; 2697 hiddenAppThreshold = source.readLong(); 2698 secondaryServerThreshold = source.readLong(); 2699 visibleAppThreshold = source.readLong(); 2700 foregroundAppThreshold = source.readLong(); 2701 } 2702 2703 public static final Creator<MemoryInfo> CREATOR 2704 = new Creator<MemoryInfo>() { 2705 public MemoryInfo createFromParcel(Parcel source) { 2706 return new MemoryInfo(source); 2707 } 2708 public MemoryInfo[] newArray(int size) { 2709 return new MemoryInfo[size]; 2710 } 2711 }; 2712 2713 private MemoryInfo(Parcel source) { 2714 readFromParcel(source); 2715 } 2716 } 2717 2718 /** 2719 * Return general information about the memory state of the system. This 2720 * can be used to help decide how to manage your own memory, though note 2721 * that polling is not recommended and 2722 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2723 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2724 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2725 * level of your process as needed, which gives a better hint for how to 2726 * manage its memory. 2727 */ 2728 public void getMemoryInfo(MemoryInfo outInfo) { 2729 try { 2730 getService().getMemoryInfo(outInfo); 2731 } catch (RemoteException e) { 2732 throw e.rethrowFromSystemServer(); 2733 } 2734 } 2735 2736 /** 2737 * Information you can retrieve about an ActivityStack in the system. 2738 * @hide 2739 */ 2740 public static class StackInfo implements Parcelable { 2741 public int stackId; 2742 public Rect bounds = new Rect(); 2743 public int[] taskIds; 2744 public String[] taskNames; 2745 public Rect[] taskBounds; 2746 public int[] taskUserIds; 2747 public ComponentName topActivity; 2748 public int displayId; 2749 public int userId; 2750 public boolean visible; 2751 // Index of the stack in the display's stack list, can be used for comparison of stack order 2752 public int position; 2753 2754 @Override 2755 public int describeContents() { 2756 return 0; 2757 } 2758 2759 @Override 2760 public void writeToParcel(Parcel dest, int flags) { 2761 dest.writeInt(stackId); 2762 dest.writeInt(bounds.left); 2763 dest.writeInt(bounds.top); 2764 dest.writeInt(bounds.right); 2765 dest.writeInt(bounds.bottom); 2766 dest.writeIntArray(taskIds); 2767 dest.writeStringArray(taskNames); 2768 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2769 dest.writeInt(boundsCount); 2770 for (int i = 0; i < boundsCount; i++) { 2771 dest.writeInt(taskBounds[i].left); 2772 dest.writeInt(taskBounds[i].top); 2773 dest.writeInt(taskBounds[i].right); 2774 dest.writeInt(taskBounds[i].bottom); 2775 } 2776 dest.writeIntArray(taskUserIds); 2777 dest.writeInt(displayId); 2778 dest.writeInt(userId); 2779 dest.writeInt(visible ? 1 : 0); 2780 dest.writeInt(position); 2781 if (topActivity != null) { 2782 dest.writeInt(1); 2783 topActivity.writeToParcel(dest, 0); 2784 } else { 2785 dest.writeInt(0); 2786 } 2787 } 2788 2789 public void readFromParcel(Parcel source) { 2790 stackId = source.readInt(); 2791 bounds = new Rect( 2792 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2793 taskIds = source.createIntArray(); 2794 taskNames = source.createStringArray(); 2795 final int boundsCount = source.readInt(); 2796 if (boundsCount > 0) { 2797 taskBounds = new Rect[boundsCount]; 2798 for (int i = 0; i < boundsCount; i++) { 2799 taskBounds[i] = new Rect(); 2800 taskBounds[i].set( 2801 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2802 } 2803 } else { 2804 taskBounds = null; 2805 } 2806 taskUserIds = source.createIntArray(); 2807 displayId = source.readInt(); 2808 userId = source.readInt(); 2809 visible = source.readInt() > 0; 2810 position = source.readInt(); 2811 if (source.readInt() > 0) { 2812 topActivity = ComponentName.readFromParcel(source); 2813 } 2814 } 2815 2816 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2817 @Override 2818 public StackInfo createFromParcel(Parcel source) { 2819 return new StackInfo(source); 2820 } 2821 @Override 2822 public StackInfo[] newArray(int size) { 2823 return new StackInfo[size]; 2824 } 2825 }; 2826 2827 public StackInfo() { 2828 } 2829 2830 private StackInfo(Parcel source) { 2831 readFromParcel(source); 2832 } 2833 2834 public String toString(String prefix) { 2835 StringBuilder sb = new StringBuilder(256); 2836 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2837 sb.append(" bounds="); sb.append(bounds.toShortString()); 2838 sb.append(" displayId="); sb.append(displayId); 2839 sb.append(" userId="); sb.append(userId); 2840 sb.append("\n"); 2841 prefix = prefix + " "; 2842 for (int i = 0; i < taskIds.length; ++i) { 2843 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2844 sb.append(": "); sb.append(taskNames[i]); 2845 if (taskBounds != null) { 2846 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2847 } 2848 sb.append(" userId=").append(taskUserIds[i]); 2849 sb.append(" visible=").append(visible); 2850 if (topActivity != null) { 2851 sb.append(" topActivity=").append(topActivity); 2852 } 2853 sb.append("\n"); 2854 } 2855 return sb.toString(); 2856 } 2857 2858 @Override 2859 public String toString() { 2860 return toString(""); 2861 } 2862 } 2863 2864 /** 2865 * @hide 2866 */ 2867 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2868 try { 2869 return getService().clearApplicationUserData(packageName, 2870 observer, UserHandle.myUserId()); 2871 } catch (RemoteException e) { 2872 throw e.rethrowFromSystemServer(); 2873 } 2874 } 2875 2876 /** 2877 * Permits an application to erase its own data from disk. This is equivalent to 2878 * the user choosing to clear the app's data from within the device settings UI. It 2879 * erases all dynamic data associated with the app -- its private data and data in its 2880 * private area on external storage -- but does not remove the installed application 2881 * itself, nor any OBB files. 2882 * 2883 * @return {@code true} if the application successfully requested that the application's 2884 * data be erased; {@code false} otherwise. 2885 */ 2886 public boolean clearApplicationUserData() { 2887 return clearApplicationUserData(mContext.getPackageName(), null); 2888 } 2889 2890 2891 /** 2892 * Permits an application to get the persistent URI permissions granted to another. 2893 * 2894 * <p>Typically called by Settings. 2895 * 2896 * @param packageName application to look for the granted permissions 2897 * @return list of granted URI permissions 2898 * 2899 * @hide 2900 */ 2901 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2902 try { 2903 return getService().getGrantedUriPermissions(packageName, 2904 UserHandle.myUserId()); 2905 } catch (RemoteException e) { 2906 throw e.rethrowFromSystemServer(); 2907 } 2908 } 2909 2910 /** 2911 * Permits an application to clear the persistent URI permissions granted to another. 2912 * 2913 * <p>Typically called by Settings. 2914 * 2915 * @param packageName application to clear its granted permissions 2916 * 2917 * @hide 2918 */ 2919 public void clearGrantedUriPermissions(String packageName) { 2920 try { 2921 getService().clearGrantedUriPermissions(packageName, 2922 UserHandle.myUserId()); 2923 } catch (RemoteException e) { 2924 throw e.rethrowFromSystemServer(); 2925 } 2926 } 2927 2928 /** 2929 * Information you can retrieve about any processes that are in an error condition. 2930 */ 2931 public static class ProcessErrorStateInfo implements Parcelable { 2932 /** 2933 * Condition codes 2934 */ 2935 public static final int NO_ERROR = 0; 2936 public static final int CRASHED = 1; 2937 public static final int NOT_RESPONDING = 2; 2938 2939 /** 2940 * The condition that the process is in. 2941 */ 2942 public int condition; 2943 2944 /** 2945 * The process name in which the crash or error occurred. 2946 */ 2947 public String processName; 2948 2949 /** 2950 * The pid of this process; 0 if none 2951 */ 2952 public int pid; 2953 2954 /** 2955 * The kernel user-ID that has been assigned to this process; 2956 * currently this is not a unique ID (multiple applications can have 2957 * the same uid). 2958 */ 2959 public int uid; 2960 2961 /** 2962 * The activity name associated with the error, if known. May be null. 2963 */ 2964 public String tag; 2965 2966 /** 2967 * A short message describing the error condition. 2968 */ 2969 public String shortMsg; 2970 2971 /** 2972 * A long message describing the error condition. 2973 */ 2974 public String longMsg; 2975 2976 /** 2977 * The stack trace where the error originated. May be null. 2978 */ 2979 public String stackTrace; 2980 2981 /** 2982 * to be deprecated: This value will always be null. 2983 */ 2984 public byte[] crashData = null; 2985 2986 public ProcessErrorStateInfo() { 2987 } 2988 2989 @Override 2990 public int describeContents() { 2991 return 0; 2992 } 2993 2994 @Override 2995 public void writeToParcel(Parcel dest, int flags) { 2996 dest.writeInt(condition); 2997 dest.writeString(processName); 2998 dest.writeInt(pid); 2999 dest.writeInt(uid); 3000 dest.writeString(tag); 3001 dest.writeString(shortMsg); 3002 dest.writeString(longMsg); 3003 dest.writeString(stackTrace); 3004 } 3005 3006 public void readFromParcel(Parcel source) { 3007 condition = source.readInt(); 3008 processName = source.readString(); 3009 pid = source.readInt(); 3010 uid = source.readInt(); 3011 tag = source.readString(); 3012 shortMsg = source.readString(); 3013 longMsg = source.readString(); 3014 stackTrace = source.readString(); 3015 } 3016 3017 public static final Creator<ProcessErrorStateInfo> CREATOR = 3018 new Creator<ProcessErrorStateInfo>() { 3019 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3020 return new ProcessErrorStateInfo(source); 3021 } 3022 public ProcessErrorStateInfo[] newArray(int size) { 3023 return new ProcessErrorStateInfo[size]; 3024 } 3025 }; 3026 3027 private ProcessErrorStateInfo(Parcel source) { 3028 readFromParcel(source); 3029 } 3030 } 3031 3032 /** 3033 * Returns a list of any processes that are currently in an error condition. The result 3034 * will be null if all processes are running properly at this time. 3035 * 3036 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3037 * current error conditions (it will not return an empty list). This list ordering is not 3038 * specified. 3039 */ 3040 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3041 try { 3042 return getService().getProcessesInErrorState(); 3043 } catch (RemoteException e) { 3044 throw e.rethrowFromSystemServer(); 3045 } 3046 } 3047 3048 /** 3049 * Information you can retrieve about a running process. 3050 */ 3051 public static class RunningAppProcessInfo implements Parcelable { 3052 /** 3053 * The name of the process that this object is associated with 3054 */ 3055 public String processName; 3056 3057 /** 3058 * The pid of this process; 0 if none 3059 */ 3060 public int pid; 3061 3062 /** 3063 * The user id of this process. 3064 */ 3065 public int uid; 3066 3067 /** 3068 * All packages that have been loaded into the process. 3069 */ 3070 public String pkgList[]; 3071 3072 /** 3073 * Constant for {@link #flags}: this is an app that is unable to 3074 * correctly save its state when going to the background, 3075 * so it can not be killed while in the background. 3076 * @hide 3077 */ 3078 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3079 3080 /** 3081 * Constant for {@link #flags}: this process is associated with a 3082 * persistent system app. 3083 * @hide 3084 */ 3085 public static final int FLAG_PERSISTENT = 1<<1; 3086 3087 /** 3088 * Constant for {@link #flags}: this process is associated with a 3089 * persistent system app. 3090 * @hide 3091 */ 3092 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3093 3094 /** 3095 * Flags of information. May be any of 3096 * {@link #FLAG_CANT_SAVE_STATE}. 3097 * @hide 3098 */ 3099 public int flags; 3100 3101 /** 3102 * Last memory trim level reported to the process: corresponds to 3103 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3104 * ComponentCallbacks2.onTrimMemory(int)}. 3105 */ 3106 public int lastTrimLevel; 3107 3108 /** @hide */ 3109 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3110 IMPORTANCE_FOREGROUND, 3111 IMPORTANCE_FOREGROUND_SERVICE, 3112 IMPORTANCE_TOP_SLEEPING, 3113 IMPORTANCE_VISIBLE, 3114 IMPORTANCE_PERCEPTIBLE, 3115 IMPORTANCE_CANT_SAVE_STATE, 3116 IMPORTANCE_SERVICE, 3117 IMPORTANCE_CACHED, 3118 IMPORTANCE_GONE, 3119 }) 3120 @Retention(RetentionPolicy.SOURCE) 3121 public @interface Importance {} 3122 3123 /** 3124 * Constant for {@link #importance}: This process is running the 3125 * foreground UI; that is, it is the thing currently at the top of the screen 3126 * that the user is interacting with. 3127 */ 3128 public static final int IMPORTANCE_FOREGROUND = 100; 3129 3130 /** 3131 * Constant for {@link #importance}: This process is running a foreground 3132 * service, for example to perform music playback even while the user is 3133 * not immediately in the app. This generally indicates that the process 3134 * is doing something the user actively cares about. 3135 */ 3136 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3137 3138 /** 3139 * Constant for {@link #importance}: This process is running the foreground 3140 * UI, but the device is asleep so it is not visible to the user. This means 3141 * the user is not really aware of the process, because they can not see or 3142 * interact with it, but it is quite important because it what they expect to 3143 * return to once unlocking the device. 3144 */ 3145 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3146 3147 /** 3148 * Constant for {@link #importance}: This process is running something 3149 * that is actively visible to the user, though not in the immediate 3150 * foreground. This may be running a window that is behind the current 3151 * foreground (so paused and with its state saved, not interacting with 3152 * the user, but visible to them to some degree); it may also be running 3153 * other services under the system's control that it inconsiders important. 3154 */ 3155 public static final int IMPORTANCE_VISIBLE = 200; 3156 3157 /** 3158 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3159 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3160 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3161 * 3162 * @deprecated Use {@link #IMPORTANCE_PERCEPTIBLE} instead. 3163 */ 3164 @Deprecated 3165 public static final int IMPORTANCE_PERCEPTIBLE_DEPRECATED = 130; 3166 3167 /** 3168 * Constant for {@link #importance}: This process is not something the user 3169 * is directly aware of, but is otherwise perceptible to them to some degree. 3170 */ 3171 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3172 3173 /** 3174 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3175 * this wrong value 3176 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3177 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3178 * 3179 * @deprecated Use {@link #IMPORTANCE_CANT_SAVE_STATE} instead. 3180 * @hide 3181 */ 3182 @Deprecated 3183 public static final int IMPORTANCE_CANT_SAVE_STATE_DEPRECATED = 170; 3184 3185 /** 3186 * Constant for {@link #importance}: This process is running an 3187 * application that can not save its state, and thus can't be killed 3188 * while in the background. 3189 * @hide 3190 */ 3191 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3192 3193 /** 3194 * Constant for {@link #importance}: This process is contains services 3195 * that should remain running. These are background services apps have 3196 * started, not something the user is aware of, so they may be killed by 3197 * the system relatively freely (though it is generally desired that they 3198 * stay running as long as they want to). 3199 */ 3200 public static final int IMPORTANCE_SERVICE = 300; 3201 3202 /** 3203 * Constant for {@link #importance}: This process process contains 3204 * cached code that is expendable, not actively running any app components 3205 * we care about. 3206 */ 3207 public static final int IMPORTANCE_CACHED = 400; 3208 3209 /** 3210 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3211 */ 3212 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3213 3214 /** 3215 * Constant for {@link #importance}: This process is empty of any 3216 * actively running code. 3217 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3218 */ 3219 @Deprecated 3220 public static final int IMPORTANCE_EMPTY = 500; 3221 3222 /** 3223 * Constant for {@link #importance}: This process does not exist. 3224 */ 3225 public static final int IMPORTANCE_GONE = 1000; 3226 3227 /** 3228 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3229 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3230 * @hide 3231 */ 3232 public static @Importance int procStateToImportance(int procState) { 3233 if (procState == PROCESS_STATE_NONEXISTENT) { 3234 return IMPORTANCE_GONE; 3235 } else if (procState >= PROCESS_STATE_HOME) { 3236 return IMPORTANCE_CACHED; 3237 } else if (procState >= PROCESS_STATE_SERVICE) { 3238 return IMPORTANCE_SERVICE; 3239 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3240 return IMPORTANCE_CANT_SAVE_STATE; 3241 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3242 return IMPORTANCE_PERCEPTIBLE; 3243 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3244 return IMPORTANCE_VISIBLE; 3245 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3246 return IMPORTANCE_TOP_SLEEPING; 3247 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3248 return IMPORTANCE_FOREGROUND_SERVICE; 3249 } else { 3250 return IMPORTANCE_FOREGROUND; 3251 } 3252 } 3253 3254 /** 3255 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3256 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3257 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3258 * client's target SDK < {@link VERSION_CODES#O}. 3259 * @hide 3260 */ 3261 public static @Importance int procStateToImportanceForClient(int procState, 3262 Context clientContext) { 3263 final int importance = procStateToImportance(procState); 3264 3265 // For pre O apps, convert to the old, wrong values. 3266 if (clientContext.getApplicationInfo().targetSdkVersion < VERSION_CODES.O) { 3267 switch (importance) { 3268 case IMPORTANCE_PERCEPTIBLE: 3269 return IMPORTANCE_PERCEPTIBLE_DEPRECATED; 3270 case IMPORTANCE_CANT_SAVE_STATE: 3271 return IMPORTANCE_CANT_SAVE_STATE_DEPRECATED; 3272 } 3273 } 3274 return importance; 3275 } 3276 3277 /** @hide */ 3278 public static int importanceToProcState(@Importance int importance) { 3279 if (importance == IMPORTANCE_GONE) { 3280 return PROCESS_STATE_NONEXISTENT; 3281 } else if (importance >= IMPORTANCE_CACHED) { 3282 return PROCESS_STATE_HOME; 3283 } else if (importance >= IMPORTANCE_SERVICE) { 3284 return PROCESS_STATE_SERVICE; 3285 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3286 return PROCESS_STATE_HEAVY_WEIGHT; 3287 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3288 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3289 } else if (importance >= IMPORTANCE_VISIBLE) { 3290 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3291 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3292 return PROCESS_STATE_TOP_SLEEPING; 3293 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3294 return PROCESS_STATE_FOREGROUND_SERVICE; 3295 } else { 3296 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3297 } 3298 } 3299 3300 /** 3301 * The relative importance level that the system places on this process. 3302 * These constants are numbered so that "more important" values are 3303 * always smaller than "less important" values. 3304 */ 3305 public @Importance int importance; 3306 3307 /** 3308 * An additional ordering within a particular {@link #importance} 3309 * category, providing finer-grained information about the relative 3310 * utility of processes within a category. This number means nothing 3311 * except that a smaller values are more recently used (and thus 3312 * more important). Currently an LRU value is only maintained for 3313 * the {@link #IMPORTANCE_CACHED} category, though others may 3314 * be maintained in the future. 3315 */ 3316 public int lru; 3317 3318 /** 3319 * Constant for {@link #importanceReasonCode}: nothing special has 3320 * been specified for the reason for this level. 3321 */ 3322 public static final int REASON_UNKNOWN = 0; 3323 3324 /** 3325 * Constant for {@link #importanceReasonCode}: one of the application's 3326 * content providers is being used by another process. The pid of 3327 * the client process is in {@link #importanceReasonPid} and the 3328 * target provider in this process is in 3329 * {@link #importanceReasonComponent}. 3330 */ 3331 public static final int REASON_PROVIDER_IN_USE = 1; 3332 3333 /** 3334 * Constant for {@link #importanceReasonCode}: one of the application's 3335 * content providers is being used by another process. The pid of 3336 * the client process is in {@link #importanceReasonPid} and the 3337 * target provider in this process is in 3338 * {@link #importanceReasonComponent}. 3339 */ 3340 public static final int REASON_SERVICE_IN_USE = 2; 3341 3342 /** 3343 * The reason for {@link #importance}, if any. 3344 */ 3345 public int importanceReasonCode; 3346 3347 /** 3348 * For the specified values of {@link #importanceReasonCode}, this 3349 * is the process ID of the other process that is a client of this 3350 * process. This will be 0 if no other process is using this one. 3351 */ 3352 public int importanceReasonPid; 3353 3354 /** 3355 * For the specified values of {@link #importanceReasonCode}, this 3356 * is the name of the component that is being used in this process. 3357 */ 3358 public ComponentName importanceReasonComponent; 3359 3360 /** 3361 * When {@link #importanceReasonPid} is non-0, this is the importance 3362 * of the other pid. @hide 3363 */ 3364 public int importanceReasonImportance; 3365 3366 /** 3367 * Current process state, as per PROCESS_STATE_* constants. 3368 * @hide 3369 */ 3370 public int processState; 3371 3372 public RunningAppProcessInfo() { 3373 importance = IMPORTANCE_FOREGROUND; 3374 importanceReasonCode = REASON_UNKNOWN; 3375 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3376 } 3377 3378 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3379 processName = pProcessName; 3380 pid = pPid; 3381 pkgList = pArr; 3382 } 3383 3384 public int describeContents() { 3385 return 0; 3386 } 3387 3388 public void writeToParcel(Parcel dest, int flags) { 3389 dest.writeString(processName); 3390 dest.writeInt(pid); 3391 dest.writeInt(uid); 3392 dest.writeStringArray(pkgList); 3393 dest.writeInt(this.flags); 3394 dest.writeInt(lastTrimLevel); 3395 dest.writeInt(importance); 3396 dest.writeInt(lru); 3397 dest.writeInt(importanceReasonCode); 3398 dest.writeInt(importanceReasonPid); 3399 ComponentName.writeToParcel(importanceReasonComponent, dest); 3400 dest.writeInt(importanceReasonImportance); 3401 dest.writeInt(processState); 3402 } 3403 3404 public void readFromParcel(Parcel source) { 3405 processName = source.readString(); 3406 pid = source.readInt(); 3407 uid = source.readInt(); 3408 pkgList = source.readStringArray(); 3409 flags = source.readInt(); 3410 lastTrimLevel = source.readInt(); 3411 importance = source.readInt(); 3412 lru = source.readInt(); 3413 importanceReasonCode = source.readInt(); 3414 importanceReasonPid = source.readInt(); 3415 importanceReasonComponent = ComponentName.readFromParcel(source); 3416 importanceReasonImportance = source.readInt(); 3417 processState = source.readInt(); 3418 } 3419 3420 public static final Creator<RunningAppProcessInfo> CREATOR = 3421 new Creator<RunningAppProcessInfo>() { 3422 public RunningAppProcessInfo createFromParcel(Parcel source) { 3423 return new RunningAppProcessInfo(source); 3424 } 3425 public RunningAppProcessInfo[] newArray(int size) { 3426 return new RunningAppProcessInfo[size]; 3427 } 3428 }; 3429 3430 private RunningAppProcessInfo(Parcel source) { 3431 readFromParcel(source); 3432 } 3433 } 3434 3435 /** 3436 * Returns a list of application processes installed on external media 3437 * that are running on the device. 3438 * 3439 * <p><b>Note: this method is only intended for debugging or building 3440 * a user-facing process management UI.</b></p> 3441 * 3442 * @return Returns a list of ApplicationInfo records, or null if none 3443 * This list ordering is not specified. 3444 * @hide 3445 */ 3446 public List<ApplicationInfo> getRunningExternalApplications() { 3447 try { 3448 return getService().getRunningExternalApplications(); 3449 } catch (RemoteException e) { 3450 throw e.rethrowFromSystemServer(); 3451 } 3452 } 3453 3454 /** 3455 * Sets the memory trim mode for a process and schedules a memory trim operation. 3456 * 3457 * <p><b>Note: this method is only intended for testing framework.</b></p> 3458 * 3459 * @return Returns true if successful. 3460 * @hide 3461 */ 3462 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3463 try { 3464 return getService().setProcessMemoryTrimLevel(process, userId, 3465 level); 3466 } catch (RemoteException e) { 3467 throw e.rethrowFromSystemServer(); 3468 } 3469 } 3470 3471 /** 3472 * Returns a list of application processes that are running on the device. 3473 * 3474 * <p><b>Note: this method is only intended for debugging or building 3475 * a user-facing process management UI.</b></p> 3476 * 3477 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3478 * running processes (it will not return an empty list). This list ordering is not 3479 * specified. 3480 */ 3481 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3482 try { 3483 return getService().getRunningAppProcesses(); 3484 } catch (RemoteException e) { 3485 throw e.rethrowFromSystemServer(); 3486 } 3487 } 3488 3489 /** 3490 * Return the importance of a given package name, based on the processes that are 3491 * currently running. The return value is one of the importance constants defined 3492 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3493 * processes that this package has code running inside of. If there are no processes 3494 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3495 * @hide 3496 */ 3497 @SystemApi @TestApi 3498 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3499 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3500 try { 3501 int procState = getService().getPackageProcessState(packageName, 3502 mContext.getOpPackageName()); 3503 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3504 } catch (RemoteException e) { 3505 throw e.rethrowFromSystemServer(); 3506 } 3507 } 3508 3509 /** 3510 * Return the importance of a given uid, based on the processes that are 3511 * currently running. The return value is one of the importance constants defined 3512 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3513 * processes that this uid has running. If there are no processes 3514 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3515 * @hide 3516 */ 3517 @SystemApi @TestApi 3518 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3519 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3520 try { 3521 int procState = getService().getUidProcessState(uid, 3522 mContext.getOpPackageName()); 3523 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3524 } catch (RemoteException e) { 3525 throw e.rethrowFromSystemServer(); 3526 } 3527 } 3528 3529 /** 3530 * Callback to get reports about changes to the importance of a uid. Use with 3531 * {@link #addOnUidImportanceListener}. 3532 * @hide 3533 */ 3534 @SystemApi @TestApi 3535 public interface OnUidImportanceListener { 3536 /** 3537 * The importance if a given uid has changed. Will be one of the importance 3538 * values in {@link RunningAppProcessInfo}; 3539 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3540 * when the uid is no longer running at all. This callback will happen on a thread 3541 * from a thread pool, not the main UI thread. 3542 * @param uid The uid whose importance has changed. 3543 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3544 */ 3545 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3546 } 3547 3548 /** 3549 * Start monitoring changes to the imoportance of uids running in the system. 3550 * @param listener The listener callback that will receive change reports. 3551 * @param importanceCutpoint The level of importance in which the caller is interested 3552 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3553 * is used here, you will receive a call each time a uids importance transitions between 3554 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3555 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3556 * 3557 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3558 * permission to use this feature.</p> 3559 * 3560 * @throws IllegalArgumentException If the listener is already registered. 3561 * @throws SecurityException If the caller does not hold 3562 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3563 * @hide 3564 */ 3565 @SystemApi @TestApi 3566 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3567 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3568 synchronized (this) { 3569 if (mImportanceListeners.containsKey(listener)) { 3570 throw new IllegalArgumentException("Listener already registered: " + listener); 3571 } 3572 // TODO: implement the cut point in the system process to avoid IPCs. 3573 UidObserver observer = new UidObserver(listener, mContext); 3574 try { 3575 getService().registerUidObserver(observer, 3576 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3577 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3578 mContext.getOpPackageName()); 3579 } catch (RemoteException e) { 3580 throw e.rethrowFromSystemServer(); 3581 } 3582 mImportanceListeners.put(listener, observer); 3583 } 3584 } 3585 3586 /** 3587 * Remove an importance listener that was previously registered with 3588 * {@link #addOnUidImportanceListener}. 3589 * 3590 * @throws IllegalArgumentException If the listener is not registered. 3591 * @hide 3592 */ 3593 @SystemApi @TestApi 3594 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3595 synchronized (this) { 3596 UidObserver observer = mImportanceListeners.remove(listener); 3597 if (observer == null) { 3598 throw new IllegalArgumentException("Listener not registered: " + listener); 3599 } 3600 try { 3601 getService().unregisterUidObserver(observer); 3602 } catch (RemoteException e) { 3603 throw e.rethrowFromSystemServer(); 3604 } 3605 } 3606 } 3607 3608 /** 3609 * Return global memory state information for the calling process. This 3610 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3611 * only fields that will be filled in are 3612 * {@link RunningAppProcessInfo#pid}, 3613 * {@link RunningAppProcessInfo#uid}, 3614 * {@link RunningAppProcessInfo#lastTrimLevel}, 3615 * {@link RunningAppProcessInfo#importance}, 3616 * {@link RunningAppProcessInfo#lru}, and 3617 * {@link RunningAppProcessInfo#importanceReasonCode}. 3618 */ 3619 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3620 try { 3621 getService().getMyMemoryState(outState); 3622 } catch (RemoteException e) { 3623 throw e.rethrowFromSystemServer(); 3624 } 3625 } 3626 3627 /** 3628 * Return information about the memory usage of one or more processes. 3629 * 3630 * <p><b>Note: this method is only intended for debugging or building 3631 * a user-facing process management UI.</b></p> 3632 * 3633 * @param pids The pids of the processes whose memory usage is to be 3634 * retrieved. 3635 * @return Returns an array of memory information, one for each 3636 * requested pid. 3637 */ 3638 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3639 try { 3640 return getService().getProcessMemoryInfo(pids); 3641 } catch (RemoteException e) { 3642 throw e.rethrowFromSystemServer(); 3643 } 3644 } 3645 3646 /** 3647 * @deprecated This is now just a wrapper for 3648 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3649 * is no longer available to applications because it allows them to 3650 * break other applications by removing their alarms, stopping their 3651 * services, etc. 3652 */ 3653 @Deprecated 3654 public void restartPackage(String packageName) { 3655 killBackgroundProcesses(packageName); 3656 } 3657 3658 /** 3659 * Have the system immediately kill all background processes associated 3660 * with the given package. This is the same as the kernel killing those 3661 * processes to reclaim memory; the system will take care of restarting 3662 * these processes in the future as needed. 3663 * 3664 * @param packageName The name of the package whose processes are to 3665 * be killed. 3666 */ 3667 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3668 public void killBackgroundProcesses(String packageName) { 3669 try { 3670 getService().killBackgroundProcesses(packageName, 3671 UserHandle.myUserId()); 3672 } catch (RemoteException e) { 3673 throw e.rethrowFromSystemServer(); 3674 } 3675 } 3676 3677 /** 3678 * Kills the specified UID. 3679 * @param uid The UID to kill. 3680 * @param reason The reason for the kill. 3681 * 3682 * @hide 3683 */ 3684 @SystemApi 3685 @RequiresPermission(Manifest.permission.KILL_UID) 3686 public void killUid(int uid, String reason) { 3687 try { 3688 getService().killUid(UserHandle.getAppId(uid), 3689 UserHandle.getUserId(uid), reason); 3690 } catch (RemoteException e) { 3691 throw e.rethrowFromSystemServer(); 3692 } 3693 } 3694 3695 /** 3696 * Have the system perform a force stop of everything associated with 3697 * the given application package. All processes that share its uid 3698 * will be killed, all services it has running stopped, all activities 3699 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3700 * broadcast will be sent, so that any of its registered alarms can 3701 * be stopped, notifications removed, etc. 3702 * 3703 * <p>You must hold the permission 3704 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3705 * call this method. 3706 * 3707 * @param packageName The name of the package to be stopped. 3708 * @param userId The user for which the running package is to be stopped. 3709 * 3710 * @hide This is not available to third party applications due to 3711 * it allowing them to break other applications by stopping their 3712 * services, removing their alarms, etc. 3713 */ 3714 public void forceStopPackageAsUser(String packageName, int userId) { 3715 try { 3716 getService().forceStopPackage(packageName, userId); 3717 } catch (RemoteException e) { 3718 throw e.rethrowFromSystemServer(); 3719 } 3720 } 3721 3722 /** 3723 * @see #forceStopPackageAsUser(String, int) 3724 * @hide 3725 */ 3726 @SystemApi 3727 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3728 public void forceStopPackage(String packageName) { 3729 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3730 } 3731 3732 /** 3733 * Get the device configuration attributes. 3734 */ 3735 public ConfigurationInfo getDeviceConfigurationInfo() { 3736 try { 3737 return getService().getDeviceConfigurationInfo(); 3738 } catch (RemoteException e) { 3739 throw e.rethrowFromSystemServer(); 3740 } 3741 } 3742 3743 /** 3744 * Get the preferred density of icons for the launcher. This is used when 3745 * custom drawables are created (e.g., for shortcuts). 3746 * 3747 * @return density in terms of DPI 3748 */ 3749 public int getLauncherLargeIconDensity() { 3750 final Resources res = mContext.getResources(); 3751 final int density = res.getDisplayMetrics().densityDpi; 3752 final int sw = res.getConfiguration().smallestScreenWidthDp; 3753 3754 if (sw < 600) { 3755 // Smaller than approx 7" tablets, use the regular icon size. 3756 return density; 3757 } 3758 3759 switch (density) { 3760 case DisplayMetrics.DENSITY_LOW: 3761 return DisplayMetrics.DENSITY_MEDIUM; 3762 case DisplayMetrics.DENSITY_MEDIUM: 3763 return DisplayMetrics.DENSITY_HIGH; 3764 case DisplayMetrics.DENSITY_TV: 3765 return DisplayMetrics.DENSITY_XHIGH; 3766 case DisplayMetrics.DENSITY_HIGH: 3767 return DisplayMetrics.DENSITY_XHIGH; 3768 case DisplayMetrics.DENSITY_XHIGH: 3769 return DisplayMetrics.DENSITY_XXHIGH; 3770 case DisplayMetrics.DENSITY_XXHIGH: 3771 return DisplayMetrics.DENSITY_XHIGH * 2; 3772 default: 3773 // The density is some abnormal value. Return some other 3774 // abnormal value that is a reasonable scaling of it. 3775 return (int)((density*1.5f)+.5f); 3776 } 3777 } 3778 3779 /** 3780 * Get the preferred launcher icon size. This is used when custom drawables 3781 * are created (e.g., for shortcuts). 3782 * 3783 * @return dimensions of square icons in terms of pixels 3784 */ 3785 public int getLauncherLargeIconSize() { 3786 return getLauncherLargeIconSizeInner(mContext); 3787 } 3788 3789 static int getLauncherLargeIconSizeInner(Context context) { 3790 final Resources res = context.getResources(); 3791 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3792 final int sw = res.getConfiguration().smallestScreenWidthDp; 3793 3794 if (sw < 600) { 3795 // Smaller than approx 7" tablets, use the regular icon size. 3796 return size; 3797 } 3798 3799 final int density = res.getDisplayMetrics().densityDpi; 3800 3801 switch (density) { 3802 case DisplayMetrics.DENSITY_LOW: 3803 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3804 case DisplayMetrics.DENSITY_MEDIUM: 3805 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3806 case DisplayMetrics.DENSITY_TV: 3807 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3808 case DisplayMetrics.DENSITY_HIGH: 3809 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3810 case DisplayMetrics.DENSITY_XHIGH: 3811 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3812 case DisplayMetrics.DENSITY_XXHIGH: 3813 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3814 default: 3815 // The density is some abnormal value. Return some other 3816 // abnormal value that is a reasonable scaling of it. 3817 return (int)((size*1.5f) + .5f); 3818 } 3819 } 3820 3821 /** 3822 * Returns "true" if the user interface is currently being messed with 3823 * by a monkey. 3824 */ 3825 public static boolean isUserAMonkey() { 3826 try { 3827 return getService().isUserAMonkey(); 3828 } catch (RemoteException e) { 3829 throw e.rethrowFromSystemServer(); 3830 } 3831 } 3832 3833 /** 3834 * Returns "true" if device is running in a test harness. 3835 */ 3836 public static boolean isRunningInTestHarness() { 3837 return SystemProperties.getBoolean("ro.test_harness", false); 3838 } 3839 3840 /** 3841 * Returns the launch count of each installed package. 3842 * 3843 * @hide 3844 */ 3845 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3846 try { 3847 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3848 ServiceManager.getService("usagestats")); 3849 if (usageStatsService == null) { 3850 return new HashMap<String, Integer>(); 3851 } 3852 3853 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3854 ActivityThread.currentPackageName()); 3855 if (allPkgUsageStats == null) { 3856 return new HashMap<String, Integer>(); 3857 } 3858 3859 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3860 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3861 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3862 } 3863 3864 return launchCounts; 3865 } catch (RemoteException e) { 3866 Log.w(TAG, "Could not query launch counts", e); 3867 return new HashMap<String, Integer>(); 3868 } 3869 }*/ 3870 3871 /** @hide */ 3872 public static int checkComponentPermission(String permission, int uid, 3873 int owningUid, boolean exported) { 3874 // Root, system server get to do everything. 3875 final int appId = UserHandle.getAppId(uid); 3876 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3877 return PackageManager.PERMISSION_GRANTED; 3878 } 3879 // Isolated processes don't get any permissions. 3880 if (UserHandle.isIsolated(uid)) { 3881 return PackageManager.PERMISSION_DENIED; 3882 } 3883 // If there is a uid that owns whatever is being accessed, it has 3884 // blanket access to it regardless of the permissions it requires. 3885 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3886 return PackageManager.PERMISSION_GRANTED; 3887 } 3888 // If the target is not exported, then nobody else can get to it. 3889 if (!exported) { 3890 /* 3891 RuntimeException here = new RuntimeException("here"); 3892 here.fillInStackTrace(); 3893 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3894 here); 3895 */ 3896 return PackageManager.PERMISSION_DENIED; 3897 } 3898 if (permission == null) { 3899 return PackageManager.PERMISSION_GRANTED; 3900 } 3901 try { 3902 return AppGlobals.getPackageManager() 3903 .checkUidPermission(permission, uid); 3904 } catch (RemoteException e) { 3905 throw e.rethrowFromSystemServer(); 3906 } 3907 } 3908 3909 /** @hide */ 3910 public static int checkUidPermission(String permission, int uid) { 3911 try { 3912 return AppGlobals.getPackageManager() 3913 .checkUidPermission(permission, uid); 3914 } catch (RemoteException e) { 3915 throw e.rethrowFromSystemServer(); 3916 } 3917 } 3918 3919 /** 3920 * @hide 3921 * Helper for dealing with incoming user arguments to system service calls. 3922 * Takes care of checking permissions and converting USER_CURRENT to the 3923 * actual current user. 3924 * 3925 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3926 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3927 * @param userId The user id argument supplied by the caller -- this is the user 3928 * they want to run as. 3929 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3930 * to get a USER_ALL returned and deal with it correctly. If false, 3931 * an exception will be thrown if USER_ALL is supplied. 3932 * @param requireFull If true, the caller must hold 3933 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3934 * different user than their current process; otherwise they must hold 3935 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3936 * @param name Optional textual name of the incoming call; only for generating error messages. 3937 * @param callerPackage Optional package name of caller; only for error messages. 3938 * 3939 * @return Returns the user ID that the call should run as. Will always be a concrete 3940 * user number, unless <var>allowAll</var> is true in which case it could also be 3941 * USER_ALL. 3942 */ 3943 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3944 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3945 if (UserHandle.getUserId(callingUid) == userId) { 3946 return userId; 3947 } 3948 try { 3949 return getService().handleIncomingUser(callingPid, 3950 callingUid, userId, allowAll, requireFull, name, callerPackage); 3951 } catch (RemoteException e) { 3952 throw e.rethrowFromSystemServer(); 3953 } 3954 } 3955 3956 /** 3957 * Gets the userId of the current foreground user. Requires system permissions. 3958 * @hide 3959 */ 3960 @SystemApi 3961 public static int getCurrentUser() { 3962 UserInfo ui; 3963 try { 3964 ui = getService().getCurrentUser(); 3965 return ui != null ? ui.id : 0; 3966 } catch (RemoteException e) { 3967 throw e.rethrowFromSystemServer(); 3968 } 3969 } 3970 3971 /** 3972 * @param userid the user's id. Zero indicates the default user. 3973 * @hide 3974 */ 3975 public boolean switchUser(int userid) { 3976 try { 3977 return getService().switchUser(userid); 3978 } catch (RemoteException e) { 3979 throw e.rethrowFromSystemServer(); 3980 } 3981 } 3982 3983 /** 3984 * Logs out current current foreground user by switching to the system user and stopping the 3985 * user being switched from. 3986 * @hide 3987 */ 3988 public static void logoutCurrentUser() { 3989 int currentUser = ActivityManager.getCurrentUser(); 3990 if (currentUser != UserHandle.USER_SYSTEM) { 3991 try { 3992 getService().switchUser(UserHandle.USER_SYSTEM); 3993 getService().stopUser(currentUser, /* force= */ false, null); 3994 } catch (RemoteException e) { 3995 e.rethrowFromSystemServer(); 3996 } 3997 } 3998 } 3999 4000 /** {@hide} */ 4001 public static final int FLAG_OR_STOPPED = 1 << 0; 4002 /** {@hide} */ 4003 public static final int FLAG_AND_LOCKED = 1 << 1; 4004 /** {@hide} */ 4005 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4006 /** {@hide} */ 4007 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4008 4009 /** 4010 * Return whether the given user is actively running. This means that 4011 * the user is in the "started" state, not "stopped" -- it is currently 4012 * allowed to run code through scheduled alarms, receiving broadcasts, 4013 * etc. A started user may be either the current foreground user or a 4014 * background user; the result here does not distinguish between the two. 4015 * @param userId the user's id. Zero indicates the default user. 4016 * @hide 4017 */ 4018 public boolean isUserRunning(int userId) { 4019 try { 4020 return getService().isUserRunning(userId, 0); 4021 } catch (RemoteException e) { 4022 throw e.rethrowFromSystemServer(); 4023 } 4024 } 4025 4026 /** {@hide} */ 4027 public boolean isVrModePackageEnabled(ComponentName component) { 4028 try { 4029 return getService().isVrModePackageEnabled(component); 4030 } catch (RemoteException e) { 4031 throw e.rethrowFromSystemServer(); 4032 } 4033 } 4034 4035 /** 4036 * Perform a system dump of various state associated with the given application 4037 * package name. This call blocks while the dump is being performed, so should 4038 * not be done on a UI thread. The data will be written to the given file 4039 * descriptor as text. 4040 * @param fd The file descriptor that the dump should be written to. The file 4041 * descriptor is <em>not</em> closed by this function; the caller continues to 4042 * own it. 4043 * @param packageName The name of the package that is to be dumped. 4044 */ 4045 @RequiresPermission(Manifest.permission.DUMP) 4046 public void dumpPackageState(FileDescriptor fd, String packageName) { 4047 dumpPackageStateStatic(fd, packageName); 4048 } 4049 4050 /** 4051 * @hide 4052 */ 4053 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4054 FileOutputStream fout = new FileOutputStream(fd); 4055 PrintWriter pw = new FastPrintWriter(fout); 4056 dumpService(pw, fd, "package", new String[] { packageName }); 4057 pw.println(); 4058 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4059 "-a", "package", packageName }); 4060 pw.println(); 4061 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4062 pw.println(); 4063 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4064 pw.println(); 4065 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4066 pw.println(); 4067 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4068 pw.flush(); 4069 } 4070 4071 /** 4072 * @hide 4073 */ 4074 public static boolean isSystemReady() { 4075 if (!sSystemReady) { 4076 if (ActivityThread.isSystem()) { 4077 sSystemReady = 4078 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4079 } else { 4080 // Since this is being called from outside system server, system should be 4081 // ready by now. 4082 sSystemReady = true; 4083 } 4084 } 4085 return sSystemReady; 4086 } 4087 4088 /** 4089 * @hide 4090 */ 4091 public static void broadcastStickyIntent(Intent intent, int userId) { 4092 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4093 } 4094 4095 /** 4096 * Convenience for sending a sticky broadcast. For internal use only. 4097 * 4098 * @hide 4099 */ 4100 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4101 try { 4102 getService().broadcastIntent( 4103 null, intent, null, null, Activity.RESULT_OK, null, null, 4104 null /*permission*/, appOp, null, false, true, userId); 4105 } catch (RemoteException ex) { 4106 } 4107 } 4108 4109 /** 4110 * @hide 4111 */ 4112 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4113 String tag) { 4114 try { 4115 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4116 sourceUid, sourcePkg, tag); 4117 } catch (RemoteException ex) { 4118 } 4119 } 4120 4121 /** 4122 * @hide 4123 */ 4124 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4125 try { 4126 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4127 } catch (RemoteException ex) { 4128 } 4129 } 4130 4131 /** 4132 * @hide 4133 */ 4134 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4135 try { 4136 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4137 } catch (RemoteException ex) { 4138 } 4139 } 4140 4141 /** 4142 * @hide 4143 */ 4144 public static IActivityManager getService() { 4145 return IActivityManagerSingleton.get(); 4146 } 4147 4148 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4149 new Singleton<IActivityManager>() { 4150 @Override 4151 protected IActivityManager create() { 4152 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4153 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4154 return am; 4155 } 4156 }; 4157 4158 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4159 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4160 IBinder service = ServiceManager.checkService(name); 4161 if (service == null) { 4162 pw.println(" (Service not found)"); 4163 return; 4164 } 4165 TransferPipe tp = null; 4166 try { 4167 pw.flush(); 4168 tp = new TransferPipe(); 4169 tp.setBufferPrefix(" "); 4170 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4171 tp.go(fd, 10000); 4172 } catch (Throwable e) { 4173 if (tp != null) { 4174 tp.kill(); 4175 } 4176 pw.println("Failure dumping service:"); 4177 e.printStackTrace(pw); 4178 } 4179 } 4180 4181 /** 4182 * Request that the system start watching for the calling process to exceed a pss 4183 * size as given here. Once called, the system will look for any occasions where it 4184 * sees the associated process with a larger pss size and, when this happens, automatically 4185 * pull a heap dump from it and allow the user to share the data. Note that this request 4186 * continues running even if the process is killed and restarted. To remove the watch, 4187 * use {@link #clearWatchHeapLimit()}. 4188 * 4189 * <p>This API only work if the calling process has been marked as 4190 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4191 * (userdebug or eng) build.</p> 4192 * 4193 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4194 * handle heap limit reports themselves.</p> 4195 * 4196 * @param pssSize The size in bytes to set the limit at. 4197 */ 4198 public void setWatchHeapLimit(long pssSize) { 4199 try { 4200 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4201 mContext.getPackageName()); 4202 } catch (RemoteException e) { 4203 throw e.rethrowFromSystemServer(); 4204 } 4205 } 4206 4207 /** 4208 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4209 * If your package has an activity handling this action, it will be launched with the 4210 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4211 * match the activty must support this action and a MIME type of "*/*". 4212 */ 4213 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4214 4215 /** 4216 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4217 */ 4218 public void clearWatchHeapLimit() { 4219 try { 4220 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4221 } catch (RemoteException e) { 4222 throw e.rethrowFromSystemServer(); 4223 } 4224 } 4225 4226 /** 4227 * @hide 4228 */ 4229 public void startLockTaskMode(int taskId) { 4230 try { 4231 getService().startLockTaskModeById(taskId); 4232 } catch (RemoteException e) { 4233 throw e.rethrowFromSystemServer(); 4234 } 4235 } 4236 4237 /** 4238 * @hide 4239 */ 4240 public void stopLockTaskMode() { 4241 try { 4242 getService().stopLockTaskMode(); 4243 } catch (RemoteException e) { 4244 throw e.rethrowFromSystemServer(); 4245 } 4246 } 4247 4248 /** 4249 * Return whether currently in lock task mode. When in this mode 4250 * no new tasks can be created or switched to. 4251 * 4252 * @see Activity#startLockTask() 4253 * 4254 * @deprecated Use {@link #getLockTaskModeState} instead. 4255 */ 4256 @Deprecated 4257 public boolean isInLockTaskMode() { 4258 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4259 } 4260 4261 /** 4262 * Return the current state of task locking. The three possible outcomes 4263 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4264 * and {@link #LOCK_TASK_MODE_PINNED}. 4265 * 4266 * @see Activity#startLockTask() 4267 */ 4268 public int getLockTaskModeState() { 4269 try { 4270 return getService().getLockTaskModeState(); 4271 } catch (RemoteException e) { 4272 throw e.rethrowFromSystemServer(); 4273 } 4274 } 4275 4276 /** 4277 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4278 * thread can be a VR thread in a process at a time, and that thread may be subject to 4279 * restrictions on the amount of time it can run. 4280 * 4281 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4282 * method will return to normal operation, and calling this method will do nothing while 4283 * persistent VR mode is enabled. 4284 * 4285 * To reset the VR thread for an application, a tid of 0 can be passed. 4286 * 4287 * @see android.os.Process#myTid() 4288 * @param tid tid of the VR thread 4289 */ 4290 public static void setVrThread(int tid) { 4291 try { 4292 getService().setVrThread(tid); 4293 } catch (RemoteException e) { 4294 // pass 4295 } 4296 } 4297 4298 /** 4299 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4300 * beyond a single process. Only one thread can be a 4301 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4302 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4303 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4304 * persistent VR thread loses its new scheduling priority; this method must be called again to 4305 * set the persistent thread. 4306 * 4307 * To reset the persistent VR thread, a tid of 0 can be passed. 4308 * 4309 * @see android.os.Process#myTid() 4310 * @param tid tid of the VR thread 4311 * @hide 4312 */ 4313 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4314 public static void setPersistentVrThread(int tid) { 4315 try { 4316 getService().setPersistentVrThread(tid); 4317 } catch (RemoteException e) { 4318 // pass 4319 } 4320 } 4321 4322 /** 4323 * The AppTask allows you to manage your own application's tasks. 4324 * See {@link android.app.ActivityManager#getAppTasks()} 4325 */ 4326 public static class AppTask { 4327 private IAppTask mAppTaskImpl; 4328 4329 /** @hide */ 4330 public AppTask(IAppTask task) { 4331 mAppTaskImpl = task; 4332 } 4333 4334 /** 4335 * Finishes all activities in this task and removes it from the recent tasks list. 4336 */ 4337 public void finishAndRemoveTask() { 4338 try { 4339 mAppTaskImpl.finishAndRemoveTask(); 4340 } catch (RemoteException e) { 4341 throw e.rethrowFromSystemServer(); 4342 } 4343 } 4344 4345 /** 4346 * Get the RecentTaskInfo associated with this task. 4347 * 4348 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4349 */ 4350 public RecentTaskInfo getTaskInfo() { 4351 try { 4352 return mAppTaskImpl.getTaskInfo(); 4353 } catch (RemoteException e) { 4354 throw e.rethrowFromSystemServer(); 4355 } 4356 } 4357 4358 /** 4359 * Bring this task to the foreground. If it contains activities, they will be 4360 * brought to the foreground with it and their instances re-created if needed. 4361 * If it doesn't contain activities, the root activity of the task will be 4362 * re-launched. 4363 */ 4364 public void moveToFront() { 4365 try { 4366 mAppTaskImpl.moveToFront(); 4367 } catch (RemoteException e) { 4368 throw e.rethrowFromSystemServer(); 4369 } 4370 } 4371 4372 /** 4373 * Start an activity in this task. Brings the task to the foreground. If this task 4374 * is not currently active (that is, its id < 0), then a new activity for the given 4375 * Intent will be launched as the root of the task and the task brought to the 4376 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4377 * an activity to launch in a new task, then a new activity for the given Intent will 4378 * be launched on top of the task and the task brought to the foreground. If this 4379 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4380 * or would otherwise be launched in to a new task, then the activity not launched but 4381 * this task be brought to the foreground and a new intent delivered to the top 4382 * activity if appropriate. 4383 * 4384 * <p>In other words, you generally want to use an Intent here that does not specify 4385 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4386 * and let the system do the right thing.</p> 4387 * 4388 * @param intent The Intent describing the new activity to be launched on the task. 4389 * @param options Optional launch options. 4390 * 4391 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4392 */ 4393 public void startActivity(Context context, Intent intent, Bundle options) { 4394 ActivityThread thread = ActivityThread.currentActivityThread(); 4395 thread.getInstrumentation().execStartActivityFromAppTask(context, 4396 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4397 } 4398 4399 /** 4400 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4401 * Intent of this AppTask. 4402 * 4403 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4404 * be set; otherwise, it will be cleared. 4405 */ 4406 public void setExcludeFromRecents(boolean exclude) { 4407 try { 4408 mAppTaskImpl.setExcludeFromRecents(exclude); 4409 } catch (RemoteException e) { 4410 throw e.rethrowFromSystemServer(); 4411 } 4412 } 4413 } 4414} 4415