ActivityManager.java revision e92f79450a0e3a55586eb2992577d09fc997761a
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 static final int NUM_ALLOWED_PIP_ACTIONS = 3; 126 127 private final Context mContext; 128 129 private static volatile boolean sSystemReady = false; 130 131 /** 132 * System property to enable task snapshots. 133 * @hide 134 */ 135 public final static boolean ENABLE_TASK_SNAPSHOTS; 136 137 static { 138 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 139 } 140 141 static final class UidObserver extends IUidObserver.Stub { 142 final OnUidImportanceListener mListener; 143 final Context mContext; 144 145 UidObserver(OnUidImportanceListener listener, Context clientContext) { 146 mListener = listener; 147 mContext = clientContext; 148 } 149 150 @Override 151 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 152 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 153 procState, mContext)); 154 } 155 156 @Override 157 public void onUidGone(int uid, boolean disabled) { 158 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 159 } 160 161 @Override 162 public void onUidActive(int uid) { 163 } 164 165 @Override 166 public void onUidIdle(int uid, boolean disabled) { 167 } 168 } 169 170 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 171 172 /** 173 * Defines acceptable types of bugreports. 174 * @hide 175 */ 176 @Retention(RetentionPolicy.SOURCE) 177 @IntDef({ 178 BUGREPORT_OPTION_FULL, 179 BUGREPORT_OPTION_INTERACTIVE, 180 BUGREPORT_OPTION_REMOTE, 181 BUGREPORT_OPTION_WEAR, 182 BUGREPORT_OPTION_TELEPHONY 183 }) 184 public @interface BugreportMode {} 185 /** 186 * Takes a bugreport without user interference (and hence causing less 187 * interference to the system), but includes all sections. 188 * @hide 189 */ 190 public static final int BUGREPORT_OPTION_FULL = 0; 191 /** 192 * Allows user to monitor progress and enter additional data; might not include all 193 * sections. 194 * @hide 195 */ 196 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 197 /** 198 * Takes a bugreport requested remotely by administrator of the Device Owner app, 199 * not the device's user. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_REMOTE = 2; 203 /** 204 * Takes a bugreport on a wearable device. 205 * @hide 206 */ 207 public static final int BUGREPORT_OPTION_WEAR = 3; 208 209 /** 210 * Takes a lightweight version of bugreport that only includes a few, urgent sections 211 * used to report telephony bugs. 212 * @hide 213 */ 214 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 215 216 /** 217 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 218 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 219 * uninstalled in lieu of the declaring one. The package named here must be 220 * signed with the same certificate as the one declaring the {@code <meta-data>}. 221 */ 222 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 223 224 /** 225 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 226 * @hide 227 */ 228 public static final int START_VOICE_HIDDEN_SESSION = -10; 229 230 /** 231 * Result for IActivityManager.startVoiceActivity: active session does not match 232 * the requesting token. 233 * @hide 234 */ 235 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 236 237 /** 238 * Result for IActivityManager.startActivity: trying to start a background user 239 * activity that shouldn't be displayed for all users. 240 * @hide 241 */ 242 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 243 244 /** 245 * Result for IActivityManager.startActivity: trying to start an activity under voice 246 * control when that activity does not support the VOICE category. 247 * @hide 248 */ 249 public static final int START_NOT_VOICE_COMPATIBLE = -7; 250 251 /** 252 * Result for IActivityManager.startActivity: an error where the 253 * start had to be canceled. 254 * @hide 255 */ 256 public static final int START_CANCELED = -6; 257 258 /** 259 * Result for IActivityManager.startActivity: an error where the 260 * thing being started is not an activity. 261 * @hide 262 */ 263 public static final int START_NOT_ACTIVITY = -5; 264 265 /** 266 * Result for IActivityManager.startActivity: an error where the 267 * caller does not have permission to start the activity. 268 * @hide 269 */ 270 public static final int START_PERMISSION_DENIED = -4; 271 272 /** 273 * Result for IActivityManager.startActivity: an error where the 274 * caller has requested both to forward a result and to receive 275 * a result. 276 * @hide 277 */ 278 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 279 280 /** 281 * Result for IActivityManager.startActivity: an error where the 282 * requested class is not found. 283 * @hide 284 */ 285 public static final int START_CLASS_NOT_FOUND = -2; 286 287 /** 288 * Result for IActivityManager.startActivity: an error where the 289 * given Intent could not be resolved to an activity. 290 * @hide 291 */ 292 public static final int START_INTENT_NOT_RESOLVED = -1; 293 294 /** 295 * Result for IActivityManaqer.startActivity: the activity was started 296 * successfully as normal. 297 * @hide 298 */ 299 public static final int START_SUCCESS = 0; 300 301 /** 302 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 303 * be executed if it is the recipient, and that is indeed the case. 304 * @hide 305 */ 306 public static final int START_RETURN_INTENT_TO_CALLER = 1; 307 308 /** 309 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 310 * a task was simply brought to the foreground. 311 * @hide 312 */ 313 public static final int START_TASK_TO_FRONT = 2; 314 315 /** 316 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 317 * the given Intent was given to the existing top activity. 318 * @hide 319 */ 320 public static final int START_DELIVERED_TO_TOP = 3; 321 322 /** 323 * Result for IActivityManaqer.startActivity: request was canceled because 324 * app switches are temporarily canceled to ensure the user's last request 325 * (such as pressing home) is performed. 326 * @hide 327 */ 328 public static final int START_SWITCHES_CANCELED = 4; 329 330 /** 331 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 332 * while in Lock Task Mode. 333 * @hide 334 */ 335 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 336 337 /** 338 * Flag for IActivityManaqer.startActivity: do special start mode where 339 * a new activity is launched only if it is needed. 340 * @hide 341 */ 342 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 343 344 /** 345 * Flag for IActivityManaqer.startActivity: launch the app for 346 * debugging. 347 * @hide 348 */ 349 public static final int START_FLAG_DEBUG = 1<<1; 350 351 /** 352 * Flag for IActivityManaqer.startActivity: launch the app for 353 * allocation tracking. 354 * @hide 355 */ 356 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 357 358 /** 359 * Flag for IActivityManaqer.startActivity: launch the app with 360 * native debugging support. 361 * @hide 362 */ 363 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 364 365 /** 366 * Result for IActivityManaqer.broadcastIntent: success! 367 * @hide 368 */ 369 public static final int BROADCAST_SUCCESS = 0; 370 371 /** 372 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 373 * a sticky intent without appropriate permission. 374 * @hide 375 */ 376 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 377 378 /** 379 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 380 * to a stopped user. Fail. 381 * @hide 382 */ 383 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 384 385 /** 386 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 387 * for a sendBroadcast operation. 388 * @hide 389 */ 390 public static final int INTENT_SENDER_BROADCAST = 1; 391 392 /** 393 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 394 * for a startActivity operation. 395 * @hide 396 */ 397 public static final int INTENT_SENDER_ACTIVITY = 2; 398 399 /** 400 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 401 * for an activity result operation. 402 * @hide 403 */ 404 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 405 406 /** 407 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 408 * for a startService operation. 409 * @hide 410 */ 411 public static final int INTENT_SENDER_SERVICE = 4; 412 413 /** 414 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 415 * for a startForegroundService operation. 416 * @hide 417 */ 418 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 419 420 /** @hide User operation call: success! */ 421 public static final int USER_OP_SUCCESS = 0; 422 423 /** @hide User operation call: given user id is not known. */ 424 public static final int USER_OP_UNKNOWN_USER = -1; 425 426 /** @hide User operation call: given user id is the current user, can't be stopped. */ 427 public static final int USER_OP_IS_CURRENT = -2; 428 429 /** @hide User operation call: system user can't be stopped. */ 430 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 431 432 /** @hide User operation call: one of related users cannot be stopped. */ 433 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 434 435 /** @hide Not a real process state. */ 436 public static final int PROCESS_STATE_UNKNOWN = -1; 437 438 /** @hide Process is a persistent system process. */ 439 public static final int PROCESS_STATE_PERSISTENT = 0; 440 441 /** @hide Process is a persistent system process and is doing UI. */ 442 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 443 444 /** @hide Process is hosting the current top activities. Note that this covers 445 * all activities that are visible to the user. */ 446 public static final int PROCESS_STATE_TOP = 2; 447 448 /** @hide Process is hosting a foreground service due to a system binding. */ 449 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 450 451 /** @hide Process is hosting a foreground service. */ 452 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 453 454 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 455 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 456 457 /** @hide Process is important to the user, and something they are aware of. */ 458 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 459 460 /** @hide Process is important to the user, but not something they are aware of. */ 461 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 462 463 /** @hide Process is in the background running a backup/restore operation. */ 464 public static final int PROCESS_STATE_BACKUP = 8; 465 466 /** @hide Process is in the background, but it can't restore its state so we want 467 * to try to avoid killing it. */ 468 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 469 470 /** @hide Process is in the background running a service. Unlike oom_adj, this level 471 * is used for both the normal running in background state and the executing 472 * operations state. */ 473 public static final int PROCESS_STATE_SERVICE = 10; 474 475 /** @hide Process is in the background running a receiver. Note that from the 476 * perspective of oom_adj receivers run at a higher foreground level, but for our 477 * prioritization here that is not necessary and putting them below services means 478 * many fewer changes in some process states as they receive broadcasts. */ 479 public static final int PROCESS_STATE_RECEIVER = 11; 480 481 /** @hide Process is in the background but hosts the home activity. */ 482 public static final int PROCESS_STATE_HOME = 12; 483 484 /** @hide Process is in the background but hosts the last shown activity. */ 485 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 486 487 /** @hide Process is being cached for later use and contains activities. */ 488 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 489 490 /** @hide Process is being cached for later use and is a client of another cached 491 * process that contains activities. */ 492 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 493 494 /** @hide Process is being cached for later use and is empty. */ 495 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 496 497 /** @hide Process does not exist. */ 498 public static final int PROCESS_STATE_NONEXISTENT = 17; 499 500 /** @hide The lowest process state number */ 501 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 502 503 /** @hide The highest process state number */ 504 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 505 506 /** @hide Should this process state be considered a background state? */ 507 public static final boolean isProcStateBackground(int procState) { 508 return procState >= PROCESS_STATE_BACKUP; 509 } 510 511 /** @hide requestType for assist context: only basic information. */ 512 public static final int ASSIST_CONTEXT_BASIC = 0; 513 514 /** @hide requestType for assist context: generate full AssistStructure. */ 515 public static final int ASSIST_CONTEXT_FULL = 1; 516 517 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 518 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 519 520 /** @hide Flag for registerUidObserver: report changes in process state. */ 521 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 522 523 /** @hide Flag for registerUidObserver: report uid gone. */ 524 public static final int UID_OBSERVER_GONE = 1<<1; 525 526 /** @hide Flag for registerUidObserver: report uid has become idle. */ 527 public static final int UID_OBSERVER_IDLE = 1<<2; 528 529 /** @hide Flag for registerUidObserver: report uid has become active. */ 530 public static final int UID_OBSERVER_ACTIVE = 1<<3; 531 532 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 533 public static final int APP_START_MODE_NORMAL = 0; 534 535 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 536 public static final int APP_START_MODE_DELAYED = 1; 537 538 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 539 * rigid errors (throwing exception). */ 540 public static final int APP_START_MODE_DELAYED_RIGID = 2; 541 542 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 543 * launches; this is the mode for ephemeral apps. */ 544 public static final int APP_START_MODE_DISABLED = 3; 545 546 /** 547 * Lock task mode is not active. 548 */ 549 public static final int LOCK_TASK_MODE_NONE = 0; 550 551 /** 552 * Full lock task mode is active. 553 */ 554 public static final int LOCK_TASK_MODE_LOCKED = 1; 555 556 /** 557 * App pinning mode is active. 558 */ 559 public static final int LOCK_TASK_MODE_PINNED = 2; 560 561 Point mAppTaskThumbnailSize; 562 563 /*package*/ ActivityManager(Context context, Handler handler) { 564 mContext = context; 565 } 566 567 /** 568 * Screen compatibility mode: the application most always run in 569 * compatibility mode. 570 * @hide 571 */ 572 public static final int COMPAT_MODE_ALWAYS = -1; 573 574 /** 575 * Screen compatibility mode: the application can never run in 576 * compatibility mode. 577 * @hide 578 */ 579 public static final int COMPAT_MODE_NEVER = -2; 580 581 /** 582 * Screen compatibility mode: unknown. 583 * @hide 584 */ 585 public static final int COMPAT_MODE_UNKNOWN = -3; 586 587 /** 588 * Screen compatibility mode: the application currently has compatibility 589 * mode disabled. 590 * @hide 591 */ 592 public static final int COMPAT_MODE_DISABLED = 0; 593 594 /** 595 * Screen compatibility mode: the application currently has compatibility 596 * mode enabled. 597 * @hide 598 */ 599 public static final int COMPAT_MODE_ENABLED = 1; 600 601 /** 602 * Screen compatibility mode: request to toggle the application's 603 * compatibility mode. 604 * @hide 605 */ 606 public static final int COMPAT_MODE_TOGGLE = 2; 607 608 /** @hide */ 609 public static class StackId { 610 /** Invalid stack ID. */ 611 public static final int INVALID_STACK_ID = -1; 612 613 /** First static stack ID. */ 614 public static final int FIRST_STATIC_STACK_ID = 0; 615 616 /** Home activity stack ID. */ 617 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 618 619 /** ID of stack where fullscreen activities are normally launched into. */ 620 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 621 622 /** ID of stack where freeform/resized activities are normally launched into. */ 623 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 624 625 /** ID of stack that occupies a dedicated region of the screen. */ 626 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 627 628 /** ID of stack that always on top (always visible) when it exist. */ 629 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 630 631 /** ID of stack that contains the Recents activity. */ 632 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 633 634 /** ID of stack that contains activities launched by the assistant. */ 635 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 636 637 /** Last static stack stack ID. */ 638 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 639 640 /** Start of ID range used by stacks that are created dynamically. */ 641 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 642 643 public static boolean isStaticStack(int stackId) { 644 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 645 } 646 647 public static boolean isDynamicStack(int stackId) { 648 return stackId >= FIRST_DYNAMIC_STACK_ID; 649 } 650 651 /** 652 * Returns true if the activities contained in the input stack display a shadow around 653 * their border. 654 */ 655 public static boolean hasWindowShadow(int stackId) { 656 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 657 } 658 659 /** 660 * Returns true if the activities contained in the input stack display a decor view. 661 */ 662 public static boolean hasWindowDecor(int stackId) { 663 return stackId == FREEFORM_WORKSPACE_STACK_ID; 664 } 665 666 /** 667 * Returns true if the tasks contained in the stack can be resized independently of the 668 * stack. 669 */ 670 public static boolean isTaskResizeAllowed(int stackId) { 671 return stackId == FREEFORM_WORKSPACE_STACK_ID; 672 } 673 674 /** Returns true if the task bounds should persist across power cycles. */ 675 public static boolean persistTaskBounds(int stackId) { 676 return stackId == FREEFORM_WORKSPACE_STACK_ID; 677 } 678 679 /** 680 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 681 */ 682 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 683 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 684 } 685 686 /** 687 * Returns true if we try to maintain focus in the current stack when the top activity 688 * finishes. 689 */ 690 public static boolean keepFocusInStackIfPossible(int stackId) { 691 return stackId == FREEFORM_WORKSPACE_STACK_ID 692 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 693 } 694 695 /** 696 * Returns true if Stack size is affected by the docked stack changing size. 697 */ 698 public static boolean isResizeableByDockedStack(int stackId) { 699 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 700 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 701 } 702 703 /** 704 * Returns true if the size of tasks in the input stack are affected by the docked stack 705 * changing size. 706 */ 707 public static boolean isTaskResizeableByDockedStack(int stackId) { 708 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 709 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 710 && stackId != ASSISTANT_STACK_ID; 711 } 712 713 /** 714 * Returns true if the input stack is affected by drag resizing. 715 */ 716 public static boolean isStackAffectedByDragResizing(int stackId) { 717 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 718 && stackId != ASSISTANT_STACK_ID; 719 } 720 721 /** 722 * Returns true if the windows of tasks being moved to the target stack from the source 723 * stack should be replaced, meaning that window manager will keep the old window around 724 * until the new is ready. 725 */ 726 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 727 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 728 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 729 } 730 731 /** 732 * Return whether a stackId is a stack containing floating windows. Floating windows 733 * are laid out differently as they are allowed to extend past the display bounds 734 * without overscan insets. 735 */ 736 public static boolean tasksAreFloating(int stackId) { 737 return stackId == FREEFORM_WORKSPACE_STACK_ID 738 || stackId == PINNED_STACK_ID; 739 } 740 741 /** 742 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 743 * are generally fullscreen stacks. 744 */ 745 public static boolean isBackdropToTranslucentActivity(int stackId) { 746 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 747 || stackId == ASSISTANT_STACK_ID; 748 } 749 750 /** 751 * Returns true if animation specs should be constructed for app transition that moves 752 * the task to the specified stack. 753 */ 754 public static boolean useAnimationSpecForAppTransition(int stackId) { 755 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 756 // reboots. 757 return stackId == FREEFORM_WORKSPACE_STACK_ID 758 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 759 || stackId == ASSISTANT_STACK_ID 760 || stackId == DOCKED_STACK_ID 761 || stackId == INVALID_STACK_ID; 762 } 763 764 /** 765 * Returns true if the windows in the stack can receive input keys. 766 */ 767 public static boolean canReceiveKeys(int stackId) { 768 return stackId != PINNED_STACK_ID; 769 } 770 771 /** 772 * Returns true if the stack can be visible above lockscreen. 773 */ 774 public static boolean isAllowedOverLockscreen(int stackId) { 775 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 776 stackId == ASSISTANT_STACK_ID; 777 } 778 779 /** 780 * Returns true if activities from stasks in the given {@param stackId} are allowed to 781 * enter picture-in-picture. 782 */ 783 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 784 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 785 stackId != RECENTS_STACK_ID; 786 } 787 788 public static boolean isAlwaysOnTop(int stackId) { 789 return stackId == PINNED_STACK_ID; 790 } 791 792 /** 793 * Returns true if the top task in the task is allowed to return home when finished and 794 * there are other tasks in the stack. 795 */ 796 public static boolean allowTopTaskToReturnHome(int stackId) { 797 return stackId != PINNED_STACK_ID; 798 } 799 800 /** 801 * Returns true if the stack should be resized to match the bounds specified by 802 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 803 */ 804 public static boolean resizeStackWithLaunchBounds(int stackId) { 805 return stackId == PINNED_STACK_ID; 806 } 807 808 /** 809 * Returns true if any visible windows belonging to apps in this stack should be kept on 810 * screen when the app is killed due to something like the low memory killer. 811 */ 812 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 813 return stackId != PINNED_STACK_ID; 814 } 815 816 /** 817 * Returns true if the backdrop on the client side should match the frame of the window. 818 * Returns false, if the backdrop should be fullscreen. 819 */ 820 public static boolean useWindowFrameForBackdrop(int stackId) { 821 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 822 } 823 824 /** 825 * Returns true if a window from the specified stack with {@param stackId} are normally 826 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 827 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 828 * etc. 829 */ 830 public static boolean normallyFullscreenWindows(int stackId) { 831 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 832 && stackId != DOCKED_STACK_ID; 833 } 834 835 /** 836 * Returns true if the input stack id should only be present on a device that supports 837 * multi-window mode. 838 * @see android.app.ActivityManager#supportsMultiWindow 839 */ 840 public static boolean isMultiWindowStack(int stackId) { 841 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 842 || stackId == DOCKED_STACK_ID; 843 } 844 845 /** 846 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 847 */ 848 public static boolean isHomeOrRecentsStack(int stackId) { 849 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 850 } 851 852 /** 853 * Returns true if activities contained in this stack can request visible behind by 854 * calling {@link Activity#requestVisibleBehind}. 855 * 856 * @deprecated This method's functionality is no longer supported as of 857 * {@link android.os.Build.VERSION_CODES#O} and will be removed in a future release. 858 */ 859 @Deprecated 860 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 861 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 862 stackId == ASSISTANT_STACK_ID; 863 } 864 865 /** 866 * Returns true if this stack may be scaled without resizing, and windows within may need 867 * to be configured as such. 868 */ 869 public static boolean windowsAreScaleable(int stackId) { 870 return stackId == PINNED_STACK_ID; 871 } 872 873 /** 874 * Returns true if windows in this stack should be given move animations by default. 875 */ 876 public static boolean hasMovementAnimations(int stackId) { 877 return stackId != PINNED_STACK_ID; 878 } 879 880 /** Returns true if the input stack and its content can affect the device orientation. */ 881 public static boolean canSpecifyOrientation(int stackId) { 882 return stackId == HOME_STACK_ID 883 || stackId == RECENTS_STACK_ID 884 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 885 || stackId == ASSISTANT_STACK_ID 886 || isDynamicStack(stackId); 887 } 888 } 889 890 /** 891 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 892 * specifies the position of the created docked stack at the top half of the screen if 893 * in portrait mode or at the left half of the screen if in landscape mode. 894 * @hide 895 */ 896 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 897 898 /** 899 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 900 * specifies the position of the created docked stack at the bottom half of the screen if 901 * in portrait mode or at the right half of the screen if in landscape mode. 902 * @hide 903 */ 904 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 905 906 /** 907 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 908 * that the resize doesn't need to preserve the window, and can be skipped if bounds 909 * is unchanged. This mode is used by window manager in most cases. 910 * @hide 911 */ 912 public static final int RESIZE_MODE_SYSTEM = 0; 913 914 /** 915 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 916 * that the resize should preserve the window if possible. 917 * @hide 918 */ 919 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 920 921 /** 922 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 923 * that the resize should be performed even if the bounds appears unchanged. 924 * @hide 925 */ 926 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 927 928 /** 929 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 930 * manager during a screen rotation. 931 * @hide 932 */ 933 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 934 935 /** 936 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 937 * resize is due to a drag action. 938 * @hide 939 */ 940 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 941 942 /** 943 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 944 * that the resize should preserve the window if possible, and should not be skipped 945 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 946 * is ending. 947 * @hide 948 */ 949 public static final int RESIZE_MODE_USER_FORCED = 950 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 951 952 /** @hide */ 953 public int getFrontActivityScreenCompatMode() { 954 try { 955 return getService().getFrontActivityScreenCompatMode(); 956 } catch (RemoteException e) { 957 throw e.rethrowFromSystemServer(); 958 } 959 } 960 961 /** @hide */ 962 public void setFrontActivityScreenCompatMode(int mode) { 963 try { 964 getService().setFrontActivityScreenCompatMode(mode); 965 } catch (RemoteException e) { 966 throw e.rethrowFromSystemServer(); 967 } 968 } 969 970 /** @hide */ 971 public int getPackageScreenCompatMode(String packageName) { 972 try { 973 return getService().getPackageScreenCompatMode(packageName); 974 } catch (RemoteException e) { 975 throw e.rethrowFromSystemServer(); 976 } 977 } 978 979 /** @hide */ 980 public void setPackageScreenCompatMode(String packageName, int mode) { 981 try { 982 getService().setPackageScreenCompatMode(packageName, mode); 983 } catch (RemoteException e) { 984 throw e.rethrowFromSystemServer(); 985 } 986 } 987 988 /** @hide */ 989 public boolean getPackageAskScreenCompat(String packageName) { 990 try { 991 return getService().getPackageAskScreenCompat(packageName); 992 } catch (RemoteException e) { 993 throw e.rethrowFromSystemServer(); 994 } 995 } 996 997 /** @hide */ 998 public void setPackageAskScreenCompat(String packageName, boolean ask) { 999 try { 1000 getService().setPackageAskScreenCompat(packageName, ask); 1001 } catch (RemoteException e) { 1002 throw e.rethrowFromSystemServer(); 1003 } 1004 } 1005 1006 /** 1007 * Return the approximate per-application memory class of the current 1008 * device. This gives you an idea of how hard a memory limit you should 1009 * impose on your application to let the overall system work best. The 1010 * returned value is in megabytes; the baseline Android memory class is 1011 * 16 (which happens to be the Java heap limit of those devices); some 1012 * device with more memory may return 24 or even higher numbers. 1013 */ 1014 public int getMemoryClass() { 1015 return staticGetMemoryClass(); 1016 } 1017 1018 /** @hide */ 1019 static public int staticGetMemoryClass() { 1020 // Really brain dead right now -- just take this from the configured 1021 // vm heap size, and assume it is in megabytes and thus ends with "m". 1022 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1023 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1024 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1025 } 1026 return staticGetLargeMemoryClass(); 1027 } 1028 1029 /** 1030 * Return the approximate per-application memory class of the current 1031 * device when an application is running with a large heap. This is the 1032 * space available for memory-intensive applications; most applications 1033 * should not need this amount of memory, and should instead stay with the 1034 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1035 * This may be the same size as {@link #getMemoryClass()} on memory 1036 * constrained devices, or it may be significantly larger on devices with 1037 * a large amount of available RAM. 1038 * 1039 * <p>The is the size of the application's Dalvik heap if it has 1040 * specified <code>android:largeHeap="true"</code> in its manifest. 1041 */ 1042 public int getLargeMemoryClass() { 1043 return staticGetLargeMemoryClass(); 1044 } 1045 1046 /** @hide */ 1047 static public int staticGetLargeMemoryClass() { 1048 // Really brain dead right now -- just take this from the configured 1049 // vm heap size, and assume it is in megabytes and thus ends with "m". 1050 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1051 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1052 } 1053 1054 /** 1055 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1056 * is ultimately up to the device configuration, but currently it generally means 1057 * something in the class of a 512MB device with about a 800x480 or less screen. 1058 * This is mostly intended to be used by apps to determine whether they should turn 1059 * off certain features that require more RAM. 1060 */ 1061 public boolean isLowRamDevice() { 1062 return isLowRamDeviceStatic(); 1063 } 1064 1065 /** @hide */ 1066 public static boolean isLowRamDeviceStatic() { 1067 return RoSystemProperties.CONFIG_LOW_RAM; 1068 } 1069 1070 /** 1071 * Used by persistent processes to determine if they are running on a 1072 * higher-end device so should be okay using hardware drawing acceleration 1073 * (which tends to consume a lot more RAM). 1074 * @hide 1075 */ 1076 static public boolean isHighEndGfx() { 1077 return !isLowRamDeviceStatic() && 1078 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1079 } 1080 1081 /** 1082 * Return the maximum number of recents entries that we will maintain and show. 1083 * @hide 1084 */ 1085 static public int getMaxRecentTasksStatic() { 1086 if (gMaxRecentTasks < 0) { 1087 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1088 } 1089 return gMaxRecentTasks; 1090 } 1091 1092 /** 1093 * Return the default limit on the number of recents that an app can make. 1094 * @hide 1095 */ 1096 static public int getDefaultAppRecentsLimitStatic() { 1097 return getMaxRecentTasksStatic() / 6; 1098 } 1099 1100 /** 1101 * Return the maximum limit on the number of recents that an app can make. 1102 * @hide 1103 */ 1104 static public int getMaxAppRecentsLimitStatic() { 1105 return getMaxRecentTasksStatic() / 2; 1106 } 1107 1108 /** 1109 * Returns true if the system supports at least one form of multi-window. 1110 * E.g. freeform, split-screen, picture-in-picture. 1111 * @hide 1112 */ 1113 static public boolean supportsMultiWindow() { 1114 return !isLowRamDeviceStatic() 1115 && Resources.getSystem().getBoolean( 1116 com.android.internal.R.bool.config_supportsMultiWindow); 1117 } 1118 1119 /** 1120 * Returns true if the system supports split screen multi-window. 1121 * @hide 1122 */ 1123 static public boolean supportsSplitScreenMultiWindow() { 1124 return supportsMultiWindow() 1125 && Resources.getSystem().getBoolean( 1126 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1127 } 1128 1129 /** 1130 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1131 * the user interacts with the activity currently in picture-in-picture mode. 1132 */ 1133 public static int getMaxNumPictureInPictureActions() { 1134 return NUM_ALLOWED_PIP_ACTIONS; 1135 } 1136 1137 /** 1138 * Information you can set and retrieve about the current activity within the recent task list. 1139 */ 1140 public static class TaskDescription implements Parcelable { 1141 /** @hide */ 1142 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1143 private static final String ATTR_TASKDESCRIPTIONLABEL = 1144 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1145 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1146 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1147 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1148 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1149 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1150 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1151 1152 private String mLabel; 1153 private Bitmap mIcon; 1154 private String mIconFilename; 1155 private int mColorPrimary; 1156 private int mColorBackground; 1157 private int mStatusBarColor; 1158 private int mNavigationBarColor; 1159 1160 /** 1161 * Creates the TaskDescription to the specified values. 1162 * 1163 * @param label A label and description of the current state of this task. 1164 * @param icon An icon that represents the current state of this task. 1165 * @param colorPrimary A color to override the theme's primary color. This color must be 1166 * opaque. 1167 */ 1168 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1169 this(label, icon, null, colorPrimary, 0, 0, 0); 1170 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1171 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1172 } 1173 } 1174 1175 /** 1176 * Creates the TaskDescription to the specified values. 1177 * 1178 * @param label A label and description of the current state of this activity. 1179 * @param icon An icon that represents the current state of this activity. 1180 */ 1181 public TaskDescription(String label, Bitmap icon) { 1182 this(label, icon, null, 0, 0, 0, 0); 1183 } 1184 1185 /** 1186 * Creates the TaskDescription to the specified values. 1187 * 1188 * @param label A label and description of the current state of this activity. 1189 */ 1190 public TaskDescription(String label) { 1191 this(label, null, null, 0, 0, 0, 0); 1192 } 1193 1194 /** 1195 * Creates an empty TaskDescription. 1196 */ 1197 public TaskDescription() { 1198 this(null, null, null, 0, 0, 0, 0); 1199 } 1200 1201 /** @hide */ 1202 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1203 int colorBackground, int statusBarColor, int navigationBarColor) { 1204 mLabel = label; 1205 mIcon = icon; 1206 mIconFilename = iconFilename; 1207 mColorPrimary = colorPrimary; 1208 mColorBackground = colorBackground; 1209 mStatusBarColor = statusBarColor; 1210 mNavigationBarColor = navigationBarColor; 1211 } 1212 1213 /** 1214 * Creates a copy of another TaskDescription. 1215 */ 1216 public TaskDescription(TaskDescription td) { 1217 copyFrom(td); 1218 } 1219 1220 /** 1221 * Copies this the values from another TaskDescription. 1222 * @hide 1223 */ 1224 public void copyFrom(TaskDescription other) { 1225 mLabel = other.mLabel; 1226 mIcon = other.mIcon; 1227 mIconFilename = other.mIconFilename; 1228 mColorPrimary = other.mColorPrimary; 1229 mColorBackground = other.mColorBackground; 1230 mStatusBarColor = other.mStatusBarColor; 1231 mNavigationBarColor = other.mNavigationBarColor; 1232 } 1233 1234 /** 1235 * Copies this the values from another TaskDescription, but preserves the hidden fields 1236 * if they weren't set on {@code other} 1237 * @hide 1238 */ 1239 public void copyFromPreserveHiddenFields(TaskDescription other) { 1240 mLabel = other.mLabel; 1241 mIcon = other.mIcon; 1242 mIconFilename = other.mIconFilename; 1243 mColorPrimary = other.mColorPrimary; 1244 if (other.mColorBackground != 0) { 1245 mColorBackground = other.mColorBackground; 1246 } 1247 if (other.mStatusBarColor != 0) { 1248 mStatusBarColor = other.mStatusBarColor; 1249 } 1250 if (other.mNavigationBarColor != 0) { 1251 mNavigationBarColor = other.mNavigationBarColor; 1252 } 1253 } 1254 1255 private TaskDescription(Parcel source) { 1256 readFromParcel(source); 1257 } 1258 1259 /** 1260 * Sets the label for this task description. 1261 * @hide 1262 */ 1263 public void setLabel(String label) { 1264 mLabel = label; 1265 } 1266 1267 /** 1268 * Sets the primary color for this task description. 1269 * @hide 1270 */ 1271 public void setPrimaryColor(int primaryColor) { 1272 // Ensure that the given color is valid 1273 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1274 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1275 } 1276 mColorPrimary = primaryColor; 1277 } 1278 1279 /** 1280 * Sets the background color for this task description. 1281 * @hide 1282 */ 1283 public void setBackgroundColor(int backgroundColor) { 1284 // Ensure that the given color is valid 1285 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1286 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1287 } 1288 mColorBackground = backgroundColor; 1289 } 1290 1291 /** 1292 * @hide 1293 */ 1294 public void setStatusBarColor(int statusBarColor) { 1295 mStatusBarColor = statusBarColor; 1296 } 1297 1298 /** 1299 * @hide 1300 */ 1301 public void setNavigationBarColor(int navigationBarColor) { 1302 mNavigationBarColor = navigationBarColor; 1303 } 1304 1305 /** 1306 * Sets the icon for this task description. 1307 * @hide 1308 */ 1309 public void setIcon(Bitmap icon) { 1310 mIcon = icon; 1311 } 1312 1313 /** 1314 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1315 * bitmap. 1316 * @hide 1317 */ 1318 public void setIconFilename(String iconFilename) { 1319 mIconFilename = iconFilename; 1320 mIcon = null; 1321 } 1322 1323 /** 1324 * @return The label and description of the current state of this task. 1325 */ 1326 public String getLabel() { 1327 return mLabel; 1328 } 1329 1330 /** 1331 * @return The icon that represents the current state of this task. 1332 */ 1333 public Bitmap getIcon() { 1334 if (mIcon != null) { 1335 return mIcon; 1336 } 1337 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1338 } 1339 1340 /** @hide */ 1341 public String getIconFilename() { 1342 return mIconFilename; 1343 } 1344 1345 /** @hide */ 1346 public Bitmap getInMemoryIcon() { 1347 return mIcon; 1348 } 1349 1350 /** @hide */ 1351 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1352 if (iconFilename != null) { 1353 try { 1354 return getService().getTaskDescriptionIcon(iconFilename, 1355 userId); 1356 } catch (RemoteException e) { 1357 throw e.rethrowFromSystemServer(); 1358 } 1359 } 1360 return null; 1361 } 1362 1363 /** 1364 * @return The color override on the theme's primary color. 1365 */ 1366 public int getPrimaryColor() { 1367 return mColorPrimary; 1368 } 1369 1370 /** 1371 * @return The background color. 1372 * @hide 1373 */ 1374 public int getBackgroundColor() { 1375 return mColorBackground; 1376 } 1377 1378 /** 1379 * @hide 1380 */ 1381 public int getStatusBarColor() { 1382 return mStatusBarColor; 1383 } 1384 1385 /** 1386 * @hide 1387 */ 1388 public int getNavigationBarColor() { 1389 return mNavigationBarColor; 1390 } 1391 1392 /** @hide */ 1393 public void saveToXml(XmlSerializer out) throws IOException { 1394 if (mLabel != null) { 1395 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1396 } 1397 if (mColorPrimary != 0) { 1398 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1399 Integer.toHexString(mColorPrimary)); 1400 } 1401 if (mColorBackground != 0) { 1402 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1403 Integer.toHexString(mColorBackground)); 1404 } 1405 if (mIconFilename != null) { 1406 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1407 } 1408 } 1409 1410 /** @hide */ 1411 public void restoreFromXml(String attrName, String attrValue) { 1412 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1413 setLabel(attrValue); 1414 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1415 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1416 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1417 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1418 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1419 setIconFilename(attrValue); 1420 } 1421 } 1422 1423 @Override 1424 public int describeContents() { 1425 return 0; 1426 } 1427 1428 @Override 1429 public void writeToParcel(Parcel dest, int flags) { 1430 if (mLabel == null) { 1431 dest.writeInt(0); 1432 } else { 1433 dest.writeInt(1); 1434 dest.writeString(mLabel); 1435 } 1436 if (mIcon == null) { 1437 dest.writeInt(0); 1438 } else { 1439 dest.writeInt(1); 1440 mIcon.writeToParcel(dest, 0); 1441 } 1442 dest.writeInt(mColorPrimary); 1443 dest.writeInt(mColorBackground); 1444 dest.writeInt(mStatusBarColor); 1445 dest.writeInt(mNavigationBarColor); 1446 if (mIconFilename == null) { 1447 dest.writeInt(0); 1448 } else { 1449 dest.writeInt(1); 1450 dest.writeString(mIconFilename); 1451 } 1452 } 1453 1454 public void readFromParcel(Parcel source) { 1455 mLabel = source.readInt() > 0 ? source.readString() : null; 1456 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1457 mColorPrimary = source.readInt(); 1458 mColorBackground = source.readInt(); 1459 mStatusBarColor = source.readInt(); 1460 mNavigationBarColor = source.readInt(); 1461 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1462 } 1463 1464 public static final Creator<TaskDescription> CREATOR 1465 = new Creator<TaskDescription>() { 1466 public TaskDescription createFromParcel(Parcel source) { 1467 return new TaskDescription(source); 1468 } 1469 public TaskDescription[] newArray(int size) { 1470 return new TaskDescription[size]; 1471 } 1472 }; 1473 1474 @Override 1475 public String toString() { 1476 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1477 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1478 " colorBackground: " + mColorBackground + 1479 " statusBarColor: " + mColorBackground + 1480 " navigationBarColor: " + mNavigationBarColor; 1481 } 1482 } 1483 1484 /** 1485 * Information you can retrieve about tasks that the user has most recently 1486 * started or visited. 1487 */ 1488 public static class RecentTaskInfo implements Parcelable { 1489 /** 1490 * If this task is currently running, this is the identifier for it. 1491 * If it is not running, this will be -1. 1492 */ 1493 public int id; 1494 1495 /** 1496 * The true identifier of this task, valid even if it is not running. 1497 */ 1498 public int persistentId; 1499 1500 /** 1501 * The original Intent used to launch the task. You can use this 1502 * Intent to re-launch the task (if it is no longer running) or bring 1503 * the current task to the front. 1504 */ 1505 public Intent baseIntent; 1506 1507 /** 1508 * If this task was started from an alias, this is the actual 1509 * activity component that was initially started; the component of 1510 * the baseIntent in this case is the name of the actual activity 1511 * implementation that the alias referred to. Otherwise, this is null. 1512 */ 1513 public ComponentName origActivity; 1514 1515 /** 1516 * The actual activity component that started the task. 1517 * @hide 1518 */ 1519 @Nullable 1520 public ComponentName realActivity; 1521 1522 /** 1523 * Description of the task's last state. 1524 */ 1525 public CharSequence description; 1526 1527 /** 1528 * The id of the ActivityStack this Task was on most recently. 1529 * @hide 1530 */ 1531 public int stackId; 1532 1533 /** 1534 * The id of the user the task was running as. 1535 * @hide 1536 */ 1537 public int userId; 1538 1539 /** 1540 * The first time this task was active. 1541 * @hide 1542 */ 1543 public long firstActiveTime; 1544 1545 /** 1546 * The last time this task was active. 1547 * @hide 1548 */ 1549 public long lastActiveTime; 1550 1551 /** 1552 * The recent activity values for the highest activity in the stack to have set the values. 1553 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1554 */ 1555 public TaskDescription taskDescription; 1556 1557 /** 1558 * Task affiliation for grouping with other tasks. 1559 */ 1560 public int affiliatedTaskId; 1561 1562 /** 1563 * Task affiliation color of the source task with the affiliated task id. 1564 * 1565 * @hide 1566 */ 1567 public int affiliatedTaskColor; 1568 1569 /** 1570 * The component launched as the first activity in the task. 1571 * This can be considered the "application" of this task. 1572 */ 1573 public ComponentName baseActivity; 1574 1575 /** 1576 * The activity component at the top of the history stack of the task. 1577 * This is what the user is currently doing. 1578 */ 1579 public ComponentName topActivity; 1580 1581 /** 1582 * Number of activities in this task. 1583 */ 1584 public int numActivities; 1585 1586 /** 1587 * The bounds of the task. 1588 * @hide 1589 */ 1590 public Rect bounds; 1591 1592 /** 1593 * True if the task can go in the docked stack. 1594 * @hide 1595 */ 1596 public boolean supportsSplitScreenMultiWindow; 1597 1598 /** 1599 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1600 * @hide 1601 */ 1602 public int resizeMode; 1603 1604 public RecentTaskInfo() { 1605 } 1606 1607 @Override 1608 public int describeContents() { 1609 return 0; 1610 } 1611 1612 @Override 1613 public void writeToParcel(Parcel dest, int flags) { 1614 dest.writeInt(id); 1615 dest.writeInt(persistentId); 1616 if (baseIntent != null) { 1617 dest.writeInt(1); 1618 baseIntent.writeToParcel(dest, 0); 1619 } else { 1620 dest.writeInt(0); 1621 } 1622 ComponentName.writeToParcel(origActivity, dest); 1623 ComponentName.writeToParcel(realActivity, dest); 1624 TextUtils.writeToParcel(description, dest, 1625 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1626 if (taskDescription != null) { 1627 dest.writeInt(1); 1628 taskDescription.writeToParcel(dest, 0); 1629 } else { 1630 dest.writeInt(0); 1631 } 1632 dest.writeInt(stackId); 1633 dest.writeInt(userId); 1634 dest.writeLong(firstActiveTime); 1635 dest.writeLong(lastActiveTime); 1636 dest.writeInt(affiliatedTaskId); 1637 dest.writeInt(affiliatedTaskColor); 1638 ComponentName.writeToParcel(baseActivity, dest); 1639 ComponentName.writeToParcel(topActivity, dest); 1640 dest.writeInt(numActivities); 1641 if (bounds != null) { 1642 dest.writeInt(1); 1643 bounds.writeToParcel(dest, 0); 1644 } else { 1645 dest.writeInt(0); 1646 } 1647 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1648 dest.writeInt(resizeMode); 1649 } 1650 1651 public void readFromParcel(Parcel source) { 1652 id = source.readInt(); 1653 persistentId = source.readInt(); 1654 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1655 origActivity = ComponentName.readFromParcel(source); 1656 realActivity = ComponentName.readFromParcel(source); 1657 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1658 taskDescription = source.readInt() > 0 ? 1659 TaskDescription.CREATOR.createFromParcel(source) : null; 1660 stackId = source.readInt(); 1661 userId = source.readInt(); 1662 firstActiveTime = source.readLong(); 1663 lastActiveTime = source.readLong(); 1664 affiliatedTaskId = source.readInt(); 1665 affiliatedTaskColor = source.readInt(); 1666 baseActivity = ComponentName.readFromParcel(source); 1667 topActivity = ComponentName.readFromParcel(source); 1668 numActivities = source.readInt(); 1669 bounds = source.readInt() > 0 ? 1670 Rect.CREATOR.createFromParcel(source) : null; 1671 supportsSplitScreenMultiWindow = source.readInt() == 1; 1672 resizeMode = source.readInt(); 1673 } 1674 1675 public static final Creator<RecentTaskInfo> CREATOR 1676 = new Creator<RecentTaskInfo>() { 1677 public RecentTaskInfo createFromParcel(Parcel source) { 1678 return new RecentTaskInfo(source); 1679 } 1680 public RecentTaskInfo[] newArray(int size) { 1681 return new RecentTaskInfo[size]; 1682 } 1683 }; 1684 1685 private RecentTaskInfo(Parcel source) { 1686 readFromParcel(source); 1687 } 1688 } 1689 1690 /** 1691 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1692 * that have set their 1693 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1694 */ 1695 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1696 1697 /** 1698 * Provides a list that does not contain any 1699 * recent tasks that currently are not available to the user. 1700 */ 1701 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1702 1703 /** 1704 * Provides a list that contains recent tasks for all 1705 * profiles of a user. 1706 * @hide 1707 */ 1708 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1709 1710 /** 1711 * Ignores all tasks that are on the home stack. 1712 * @hide 1713 */ 1714 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1715 1716 /** 1717 * Ignores the top task in the docked stack. 1718 * @hide 1719 */ 1720 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1721 1722 /** 1723 * Ignores all tasks that are on the pinned stack. 1724 * @hide 1725 */ 1726 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1727 1728 /** 1729 * <p></p>Return a list of the tasks that the user has recently launched, with 1730 * the most recent being first and older ones after in order. 1731 * 1732 * <p><b>Note: this method is only intended for debugging and presenting 1733 * task management user interfaces</b>. This should never be used for 1734 * core logic in an application, such as deciding between different 1735 * behaviors based on the information found here. Such uses are 1736 * <em>not</em> supported, and will likely break in the future. For 1737 * example, if multiple applications can be actively running at the 1738 * same time, assumptions made about the meaning of the data here for 1739 * purposes of control flow will be incorrect.</p> 1740 * 1741 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1742 * no longer available to third party applications: the introduction of 1743 * document-centric recents means 1744 * it can leak personal information to the caller. For backwards compatibility, 1745 * it will still return a small subset of its data: at least the caller's 1746 * own tasks (though see {@link #getAppTasks()} for the correct supported 1747 * way to retrieve that information), and possibly some other tasks 1748 * such as home that are known to not be sensitive. 1749 * 1750 * @param maxNum The maximum number of entries to return in the list. The 1751 * actual number returned may be smaller, depending on how many tasks the 1752 * user has started and the maximum number the system can remember. 1753 * @param flags Information about what to return. May be any combination 1754 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1755 * 1756 * @return Returns a list of RecentTaskInfo records describing each of 1757 * the recent tasks. 1758 */ 1759 @Deprecated 1760 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1761 throws SecurityException { 1762 try { 1763 return getService().getRecentTasks(maxNum, 1764 flags, UserHandle.myUserId()).getList(); 1765 } catch (RemoteException e) { 1766 throw e.rethrowFromSystemServer(); 1767 } 1768 } 1769 1770 /** 1771 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1772 * specific user. It requires holding 1773 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1774 * @param maxNum The maximum number of entries to return in the list. The 1775 * actual number returned may be smaller, depending on how many tasks the 1776 * user has started and the maximum number the system can remember. 1777 * @param flags Information about what to return. May be any combination 1778 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1779 * 1780 * @return Returns a list of RecentTaskInfo records describing each of 1781 * the recent tasks. Most recently activated tasks go first. 1782 * 1783 * @hide 1784 */ 1785 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1786 throws SecurityException { 1787 try { 1788 return getService().getRecentTasks(maxNum, 1789 flags, userId).getList(); 1790 } catch (RemoteException e) { 1791 throw e.rethrowFromSystemServer(); 1792 } 1793 } 1794 1795 /** 1796 * Information you can retrieve about a particular task that is currently 1797 * "running" in the system. Note that a running task does not mean the 1798 * given task actually has a process it is actively running in; it simply 1799 * means that the user has gone to it and never closed it, but currently 1800 * the system may have killed its process and is only holding on to its 1801 * last state in order to restart it when the user returns. 1802 */ 1803 public static class RunningTaskInfo implements Parcelable { 1804 /** 1805 * A unique identifier for this task. 1806 */ 1807 public int id; 1808 1809 /** 1810 * The stack that currently contains this task. 1811 * @hide 1812 */ 1813 public int stackId; 1814 1815 /** 1816 * The component launched as the first activity in the task. This can 1817 * be considered the "application" of this task. 1818 */ 1819 public ComponentName baseActivity; 1820 1821 /** 1822 * The activity component at the top of the history stack of the task. 1823 * This is what the user is currently doing. 1824 */ 1825 public ComponentName topActivity; 1826 1827 /** 1828 * Thumbnail representation of the task's current state. Currently 1829 * always null. 1830 */ 1831 public Bitmap thumbnail; 1832 1833 /** 1834 * Description of the task's current state. 1835 */ 1836 public CharSequence description; 1837 1838 /** 1839 * Number of activities in this task. 1840 */ 1841 public int numActivities; 1842 1843 /** 1844 * Number of activities that are currently running (not stopped 1845 * and persisted) in this task. 1846 */ 1847 public int numRunning; 1848 1849 /** 1850 * Last time task was run. For sorting. 1851 * @hide 1852 */ 1853 public long lastActiveTime; 1854 1855 /** 1856 * True if the task can go in the docked stack. 1857 * @hide 1858 */ 1859 public boolean supportsSplitScreenMultiWindow; 1860 1861 /** 1862 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1863 * @hide 1864 */ 1865 public int resizeMode; 1866 1867 public RunningTaskInfo() { 1868 } 1869 1870 public int describeContents() { 1871 return 0; 1872 } 1873 1874 public void writeToParcel(Parcel dest, int flags) { 1875 dest.writeInt(id); 1876 dest.writeInt(stackId); 1877 ComponentName.writeToParcel(baseActivity, dest); 1878 ComponentName.writeToParcel(topActivity, dest); 1879 if (thumbnail != null) { 1880 dest.writeInt(1); 1881 thumbnail.writeToParcel(dest, 0); 1882 } else { 1883 dest.writeInt(0); 1884 } 1885 TextUtils.writeToParcel(description, dest, 1886 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1887 dest.writeInt(numActivities); 1888 dest.writeInt(numRunning); 1889 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1890 dest.writeInt(resizeMode); 1891 } 1892 1893 public void readFromParcel(Parcel source) { 1894 id = source.readInt(); 1895 stackId = source.readInt(); 1896 baseActivity = ComponentName.readFromParcel(source); 1897 topActivity = ComponentName.readFromParcel(source); 1898 if (source.readInt() != 0) { 1899 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1900 } else { 1901 thumbnail = null; 1902 } 1903 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1904 numActivities = source.readInt(); 1905 numRunning = source.readInt(); 1906 supportsSplitScreenMultiWindow = source.readInt() != 0; 1907 resizeMode = source.readInt(); 1908 } 1909 1910 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1911 public RunningTaskInfo createFromParcel(Parcel source) { 1912 return new RunningTaskInfo(source); 1913 } 1914 public RunningTaskInfo[] newArray(int size) { 1915 return new RunningTaskInfo[size]; 1916 } 1917 }; 1918 1919 private RunningTaskInfo(Parcel source) { 1920 readFromParcel(source); 1921 } 1922 } 1923 1924 /** 1925 * Get the list of tasks associated with the calling application. 1926 * 1927 * @return The list of tasks associated with the application making this call. 1928 * @throws SecurityException 1929 */ 1930 public List<ActivityManager.AppTask> getAppTasks() { 1931 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1932 List<IBinder> appTasks; 1933 try { 1934 appTasks = getService().getAppTasks(mContext.getPackageName()); 1935 } catch (RemoteException e) { 1936 throw e.rethrowFromSystemServer(); 1937 } 1938 int numAppTasks = appTasks.size(); 1939 for (int i = 0; i < numAppTasks; i++) { 1940 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1941 } 1942 return tasks; 1943 } 1944 1945 /** 1946 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1947 * with {@link #addAppTask}. 1948 */ 1949 public Size getAppTaskThumbnailSize() { 1950 synchronized (this) { 1951 ensureAppTaskThumbnailSizeLocked(); 1952 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1953 } 1954 } 1955 1956 private void ensureAppTaskThumbnailSizeLocked() { 1957 if (mAppTaskThumbnailSize == null) { 1958 try { 1959 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1960 } catch (RemoteException e) { 1961 throw e.rethrowFromSystemServer(); 1962 } 1963 } 1964 } 1965 1966 /** 1967 * Add a new {@link AppTask} for the calling application. This will create a new 1968 * recents entry that is added to the <b>end</b> of all existing recents. 1969 * 1970 * @param activity The activity that is adding the entry. This is used to help determine 1971 * the context that the new recents entry will be in. 1972 * @param intent The Intent that describes the recents entry. This is the same Intent that 1973 * you would have used to launch the activity for it. In generally you will want to set 1974 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1975 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1976 * entry will exist without an activity, so it doesn't make sense to not retain it when 1977 * its activity disappears. The given Intent here also must have an explicit ComponentName 1978 * set on it. 1979 * @param description Optional additional description information. 1980 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1981 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1982 * recreated in your process, probably in a way you don't like, before the recents entry 1983 * is added. 1984 * 1985 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1986 * most likely cause of failure is that there is no more room for more tasks for your app. 1987 */ 1988 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1989 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1990 Point size; 1991 synchronized (this) { 1992 ensureAppTaskThumbnailSizeLocked(); 1993 size = mAppTaskThumbnailSize; 1994 } 1995 final int tw = thumbnail.getWidth(); 1996 final int th = thumbnail.getHeight(); 1997 if (tw != size.x || th != size.y) { 1998 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1999 2000 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2001 float scale; 2002 float dx = 0, dy = 0; 2003 if (tw * size.x > size.y * th) { 2004 scale = (float) size.x / (float) th; 2005 dx = (size.y - tw * scale) * 0.5f; 2006 } else { 2007 scale = (float) size.y / (float) tw; 2008 dy = (size.x - th * scale) * 0.5f; 2009 } 2010 Matrix matrix = new Matrix(); 2011 matrix.setScale(scale, scale); 2012 matrix.postTranslate((int) (dx + 0.5f), 0); 2013 2014 Canvas canvas = new Canvas(bm); 2015 canvas.drawBitmap(thumbnail, matrix, null); 2016 canvas.setBitmap(null); 2017 2018 thumbnail = bm; 2019 } 2020 if (description == null) { 2021 description = new TaskDescription(); 2022 } 2023 try { 2024 return getService().addAppTask(activity.getActivityToken(), 2025 intent, description, thumbnail); 2026 } catch (RemoteException e) { 2027 throw e.rethrowFromSystemServer(); 2028 } 2029 } 2030 2031 /** 2032 * Return a list of the tasks that are currently running, with 2033 * the most recent being first and older ones after in order. Note that 2034 * "running" does not mean any of the task's code is currently loaded or 2035 * activity -- the task may have been frozen by the system, so that it 2036 * can be restarted in its previous state when next brought to the 2037 * foreground. 2038 * 2039 * <p><b>Note: this method is only intended for debugging and presenting 2040 * task management user interfaces</b>. This should never be used for 2041 * core logic in an application, such as deciding between different 2042 * behaviors based on the information found here. Such uses are 2043 * <em>not</em> supported, and will likely break in the future. For 2044 * example, if multiple applications can be actively running at the 2045 * same time, assumptions made about the meaning of the data here for 2046 * purposes of control flow will be incorrect.</p> 2047 * 2048 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2049 * is no longer available to third party 2050 * applications: the introduction of document-centric recents means 2051 * it can leak person information to the caller. For backwards compatibility, 2052 * it will still retu rn a small subset of its data: at least the caller's 2053 * own tasks, and possibly some other tasks 2054 * such as home that are known to not be sensitive. 2055 * 2056 * @param maxNum The maximum number of entries to return in the list. The 2057 * actual number returned may be smaller, depending on how many tasks the 2058 * user has started. 2059 * 2060 * @return Returns a list of RunningTaskInfo records describing each of 2061 * the running tasks. 2062 */ 2063 @Deprecated 2064 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2065 throws SecurityException { 2066 try { 2067 return getService().getTasks(maxNum, 0); 2068 } catch (RemoteException e) { 2069 throw e.rethrowFromSystemServer(); 2070 } 2071 } 2072 2073 /** 2074 * Completely remove the given task. 2075 * 2076 * @param taskId Identifier of the task to be removed. 2077 * @return Returns true if the given task was found and removed. 2078 * 2079 * @hide 2080 */ 2081 public boolean removeTask(int taskId) throws SecurityException { 2082 try { 2083 return getService().removeTask(taskId); 2084 } catch (RemoteException e) { 2085 throw e.rethrowFromSystemServer(); 2086 } 2087 } 2088 2089 /** 2090 * Metadata related to the {@link TaskThumbnail}. 2091 * 2092 * @hide 2093 */ 2094 public static class TaskThumbnailInfo implements Parcelable { 2095 /** @hide */ 2096 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2097 private static final String ATTR_TASK_WIDTH = 2098 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2099 private static final String ATTR_TASK_HEIGHT = 2100 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2101 private static final String ATTR_SCREEN_ORIENTATION = 2102 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2103 2104 public int taskWidth; 2105 public int taskHeight; 2106 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2107 2108 public TaskThumbnailInfo() { 2109 // Do nothing 2110 } 2111 2112 private TaskThumbnailInfo(Parcel source) { 2113 readFromParcel(source); 2114 } 2115 2116 /** 2117 * Resets this info state to the initial state. 2118 * @hide 2119 */ 2120 public void reset() { 2121 taskWidth = 0; 2122 taskHeight = 0; 2123 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2124 } 2125 2126 /** 2127 * Copies from another ThumbnailInfo. 2128 */ 2129 public void copyFrom(TaskThumbnailInfo o) { 2130 taskWidth = o.taskWidth; 2131 taskHeight = o.taskHeight; 2132 screenOrientation = o.screenOrientation; 2133 } 2134 2135 /** @hide */ 2136 public void saveToXml(XmlSerializer out) throws IOException { 2137 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2138 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2139 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2140 } 2141 2142 /** @hide */ 2143 public void restoreFromXml(String attrName, String attrValue) { 2144 if (ATTR_TASK_WIDTH.equals(attrName)) { 2145 taskWidth = Integer.parseInt(attrValue); 2146 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2147 taskHeight = Integer.parseInt(attrValue); 2148 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2149 screenOrientation = Integer.parseInt(attrValue); 2150 } 2151 } 2152 2153 public int describeContents() { 2154 return 0; 2155 } 2156 2157 public void writeToParcel(Parcel dest, int flags) { 2158 dest.writeInt(taskWidth); 2159 dest.writeInt(taskHeight); 2160 dest.writeInt(screenOrientation); 2161 } 2162 2163 public void readFromParcel(Parcel source) { 2164 taskWidth = source.readInt(); 2165 taskHeight = source.readInt(); 2166 screenOrientation = source.readInt(); 2167 } 2168 2169 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2170 public TaskThumbnailInfo createFromParcel(Parcel source) { 2171 return new TaskThumbnailInfo(source); 2172 } 2173 public TaskThumbnailInfo[] newArray(int size) { 2174 return new TaskThumbnailInfo[size]; 2175 } 2176 }; 2177 } 2178 2179 /** @hide */ 2180 public static class TaskThumbnail implements Parcelable { 2181 public Bitmap mainThumbnail; 2182 public ParcelFileDescriptor thumbnailFileDescriptor; 2183 public TaskThumbnailInfo thumbnailInfo; 2184 2185 public TaskThumbnail() { 2186 } 2187 2188 private TaskThumbnail(Parcel source) { 2189 readFromParcel(source); 2190 } 2191 2192 public int describeContents() { 2193 if (thumbnailFileDescriptor != null) { 2194 return thumbnailFileDescriptor.describeContents(); 2195 } 2196 return 0; 2197 } 2198 2199 public void writeToParcel(Parcel dest, int flags) { 2200 if (mainThumbnail != null) { 2201 dest.writeInt(1); 2202 mainThumbnail.writeToParcel(dest, flags); 2203 } else { 2204 dest.writeInt(0); 2205 } 2206 if (thumbnailFileDescriptor != null) { 2207 dest.writeInt(1); 2208 thumbnailFileDescriptor.writeToParcel(dest, flags); 2209 } else { 2210 dest.writeInt(0); 2211 } 2212 if (thumbnailInfo != null) { 2213 dest.writeInt(1); 2214 thumbnailInfo.writeToParcel(dest, flags); 2215 } else { 2216 dest.writeInt(0); 2217 } 2218 } 2219 2220 public void readFromParcel(Parcel source) { 2221 if (source.readInt() != 0) { 2222 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2223 } else { 2224 mainThumbnail = null; 2225 } 2226 if (source.readInt() != 0) { 2227 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2228 } else { 2229 thumbnailFileDescriptor = null; 2230 } 2231 if (source.readInt() != 0) { 2232 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2233 } else { 2234 thumbnailInfo = null; 2235 } 2236 } 2237 2238 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2239 public TaskThumbnail createFromParcel(Parcel source) { 2240 return new TaskThumbnail(source); 2241 } 2242 public TaskThumbnail[] newArray(int size) { 2243 return new TaskThumbnail[size]; 2244 } 2245 }; 2246 } 2247 2248 /** 2249 * Represents a task snapshot. 2250 * @hide 2251 */ 2252 public static class TaskSnapshot implements Parcelable { 2253 2254 private final GraphicBuffer mSnapshot; 2255 private final int mOrientation; 2256 private final Rect mContentInsets; 2257 private final boolean mReducedResolution; 2258 private final float mScale; 2259 2260 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2261 boolean reducedResolution, float scale) { 2262 mSnapshot = snapshot; 2263 mOrientation = orientation; 2264 mContentInsets = new Rect(contentInsets); 2265 mReducedResolution = reducedResolution; 2266 mScale = scale; 2267 } 2268 2269 private TaskSnapshot(Parcel source) { 2270 mSnapshot = source.readParcelable(null /* classLoader */); 2271 mOrientation = source.readInt(); 2272 mContentInsets = source.readParcelable(null /* classLoader */); 2273 mReducedResolution = source.readBoolean(); 2274 mScale = source.readFloat(); 2275 } 2276 2277 /** 2278 * @return The graphic buffer representing the screenshot. 2279 */ 2280 public GraphicBuffer getSnapshot() { 2281 return mSnapshot; 2282 } 2283 2284 /** 2285 * @return The screen orientation the screenshot was taken in. 2286 */ 2287 public int getOrientation() { 2288 return mOrientation; 2289 } 2290 2291 /** 2292 * @return The system/content insets on the snapshot. These can be clipped off in order to 2293 * remove any areas behind system bars in the snapshot. 2294 */ 2295 public Rect getContentInsets() { 2296 return mContentInsets; 2297 } 2298 2299 /** 2300 * @return Whether this snapshot is a down-sampled version of the full resolution. 2301 */ 2302 public boolean isReducedResolution() { 2303 return mReducedResolution; 2304 } 2305 2306 /** 2307 * @return The scale this snapshot was taken in. 2308 */ 2309 public float getScale() { 2310 return mScale; 2311 } 2312 2313 @Override 2314 public int describeContents() { 2315 return 0; 2316 } 2317 2318 @Override 2319 public void writeToParcel(Parcel dest, int flags) { 2320 dest.writeParcelable(mSnapshot, 0); 2321 dest.writeInt(mOrientation); 2322 dest.writeParcelable(mContentInsets, 0); 2323 dest.writeBoolean(mReducedResolution); 2324 dest.writeFloat(mScale); 2325 } 2326 2327 @Override 2328 public String toString() { 2329 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2330 + " mContentInsets=" + mContentInsets.toShortString() 2331 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2332 } 2333 2334 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2335 public TaskSnapshot createFromParcel(Parcel source) { 2336 return new TaskSnapshot(source); 2337 } 2338 public TaskSnapshot[] newArray(int size) { 2339 return new TaskSnapshot[size]; 2340 } 2341 }; 2342 } 2343 2344 /** @hide */ 2345 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2346 try { 2347 return getService().getTaskThumbnail(id); 2348 } catch (RemoteException e) { 2349 throw e.rethrowFromSystemServer(); 2350 } 2351 } 2352 2353 /** @hide */ 2354 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2355 MOVE_TASK_WITH_HOME, 2356 MOVE_TASK_NO_USER_ACTION, 2357 }) 2358 @Retention(RetentionPolicy.SOURCE) 2359 public @interface MoveTaskFlags {} 2360 2361 /** 2362 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2363 * activity along with the task, so it is positioned immediately behind 2364 * the task. 2365 */ 2366 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2367 2368 /** 2369 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2370 * user-instigated action, so the current activity will not receive a 2371 * hint that the user is leaving. 2372 */ 2373 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2374 2375 /** 2376 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2377 * with a null options argument. 2378 * 2379 * @param taskId The identifier of the task to be moved, as found in 2380 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2381 * @param flags Additional operational flags. 2382 */ 2383 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2384 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2385 moveTaskToFront(taskId, flags, null); 2386 } 2387 2388 /** 2389 * Ask that the task associated with a given task ID be moved to the 2390 * front of the stack, so it is now visible to the user. 2391 * 2392 * @param taskId The identifier of the task to be moved, as found in 2393 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2394 * @param flags Additional operational flags. 2395 * @param options Additional options for the operation, either null or 2396 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2397 * Context.startActivity(Intent, Bundle)}. 2398 */ 2399 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2400 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2401 try { 2402 getService().moveTaskToFront(taskId, flags, options); 2403 } catch (RemoteException e) { 2404 throw e.rethrowFromSystemServer(); 2405 } 2406 } 2407 2408 /** 2409 * Information you can retrieve about a particular Service that is 2410 * currently running in the system. 2411 */ 2412 public static class RunningServiceInfo implements Parcelable { 2413 /** 2414 * The service component. 2415 */ 2416 public ComponentName service; 2417 2418 /** 2419 * If non-zero, this is the process the service is running in. 2420 */ 2421 public int pid; 2422 2423 /** 2424 * The UID that owns this service. 2425 */ 2426 public int uid; 2427 2428 /** 2429 * The name of the process this service runs in. 2430 */ 2431 public String process; 2432 2433 /** 2434 * Set to true if the service has asked to run as a foreground process. 2435 */ 2436 public boolean foreground; 2437 2438 /** 2439 * The time when the service was first made active, either by someone 2440 * starting or binding to it. This 2441 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2442 */ 2443 public long activeSince; 2444 2445 /** 2446 * Set to true if this service has been explicitly started. 2447 */ 2448 public boolean started; 2449 2450 /** 2451 * Number of clients connected to the service. 2452 */ 2453 public int clientCount; 2454 2455 /** 2456 * Number of times the service's process has crashed while the service 2457 * is running. 2458 */ 2459 public int crashCount; 2460 2461 /** 2462 * The time when there was last activity in the service (either 2463 * explicit requests to start it or clients binding to it). This 2464 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2465 */ 2466 public long lastActivityTime; 2467 2468 /** 2469 * If non-zero, this service is not currently running, but scheduled to 2470 * restart at the given time. 2471 */ 2472 public long restarting; 2473 2474 /** 2475 * Bit for {@link #flags}: set if this service has been 2476 * explicitly started. 2477 */ 2478 public static final int FLAG_STARTED = 1<<0; 2479 2480 /** 2481 * Bit for {@link #flags}: set if the service has asked to 2482 * run as a foreground process. 2483 */ 2484 public static final int FLAG_FOREGROUND = 1<<1; 2485 2486 /** 2487 * Bit for {@link #flags}: set if the service is running in a 2488 * core system process. 2489 */ 2490 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2491 2492 /** 2493 * Bit for {@link #flags}: set if the service is running in a 2494 * persistent process. 2495 */ 2496 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2497 2498 /** 2499 * Running flags. 2500 */ 2501 public int flags; 2502 2503 /** 2504 * For special services that are bound to by system code, this is 2505 * the package that holds the binding. 2506 */ 2507 public String clientPackage; 2508 2509 /** 2510 * For special services that are bound to by system code, this is 2511 * a string resource providing a user-visible label for who the 2512 * client is. 2513 */ 2514 public int clientLabel; 2515 2516 public RunningServiceInfo() { 2517 } 2518 2519 public int describeContents() { 2520 return 0; 2521 } 2522 2523 public void writeToParcel(Parcel dest, int flags) { 2524 ComponentName.writeToParcel(service, dest); 2525 dest.writeInt(pid); 2526 dest.writeInt(uid); 2527 dest.writeString(process); 2528 dest.writeInt(foreground ? 1 : 0); 2529 dest.writeLong(activeSince); 2530 dest.writeInt(started ? 1 : 0); 2531 dest.writeInt(clientCount); 2532 dest.writeInt(crashCount); 2533 dest.writeLong(lastActivityTime); 2534 dest.writeLong(restarting); 2535 dest.writeInt(this.flags); 2536 dest.writeString(clientPackage); 2537 dest.writeInt(clientLabel); 2538 } 2539 2540 public void readFromParcel(Parcel source) { 2541 service = ComponentName.readFromParcel(source); 2542 pid = source.readInt(); 2543 uid = source.readInt(); 2544 process = source.readString(); 2545 foreground = source.readInt() != 0; 2546 activeSince = source.readLong(); 2547 started = source.readInt() != 0; 2548 clientCount = source.readInt(); 2549 crashCount = source.readInt(); 2550 lastActivityTime = source.readLong(); 2551 restarting = source.readLong(); 2552 flags = source.readInt(); 2553 clientPackage = source.readString(); 2554 clientLabel = source.readInt(); 2555 } 2556 2557 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2558 public RunningServiceInfo createFromParcel(Parcel source) { 2559 return new RunningServiceInfo(source); 2560 } 2561 public RunningServiceInfo[] newArray(int size) { 2562 return new RunningServiceInfo[size]; 2563 } 2564 }; 2565 2566 private RunningServiceInfo(Parcel source) { 2567 readFromParcel(source); 2568 } 2569 } 2570 2571 /** 2572 * Return a list of the services that are currently running. 2573 * 2574 * <p><b>Note: this method is only intended for debugging or implementing 2575 * service management type user interfaces.</b></p> 2576 * 2577 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2578 * is no longer available to third party applications. For backwards compatibility, 2579 * it will still return the caller's own services. 2580 * 2581 * @param maxNum The maximum number of entries to return in the list. The 2582 * actual number returned may be smaller, depending on how many services 2583 * are running. 2584 * 2585 * @return Returns a list of RunningServiceInfo records describing each of 2586 * the running tasks. 2587 */ 2588 @Deprecated 2589 public List<RunningServiceInfo> getRunningServices(int maxNum) 2590 throws SecurityException { 2591 try { 2592 return getService() 2593 .getServices(maxNum, 0); 2594 } catch (RemoteException e) { 2595 throw e.rethrowFromSystemServer(); 2596 } 2597 } 2598 2599 /** 2600 * Returns a PendingIntent you can start to show a control panel for the 2601 * given running service. If the service does not have a control panel, 2602 * null is returned. 2603 */ 2604 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2605 throws SecurityException { 2606 try { 2607 return getService() 2608 .getRunningServiceControlPanel(service); 2609 } catch (RemoteException e) { 2610 throw e.rethrowFromSystemServer(); 2611 } 2612 } 2613 2614 /** 2615 * Information you can retrieve about the available memory through 2616 * {@link ActivityManager#getMemoryInfo}. 2617 */ 2618 public static class MemoryInfo implements Parcelable { 2619 /** 2620 * The available memory on the system. This number should not 2621 * be considered absolute: due to the nature of the kernel, a significant 2622 * portion of this memory is actually in use and needed for the overall 2623 * system to run well. 2624 */ 2625 public long availMem; 2626 2627 /** 2628 * The total memory accessible by the kernel. This is basically the 2629 * RAM size of the device, not including below-kernel fixed allocations 2630 * like DMA buffers, RAM for the baseband CPU, etc. 2631 */ 2632 public long totalMem; 2633 2634 /** 2635 * The threshold of {@link #availMem} at which we consider memory to be 2636 * low and start killing background services and other non-extraneous 2637 * processes. 2638 */ 2639 public long threshold; 2640 2641 /** 2642 * Set to true if the system considers itself to currently be in a low 2643 * memory situation. 2644 */ 2645 public boolean lowMemory; 2646 2647 /** @hide */ 2648 public long hiddenAppThreshold; 2649 /** @hide */ 2650 public long secondaryServerThreshold; 2651 /** @hide */ 2652 public long visibleAppThreshold; 2653 /** @hide */ 2654 public long foregroundAppThreshold; 2655 2656 public MemoryInfo() { 2657 } 2658 2659 public int describeContents() { 2660 return 0; 2661 } 2662 2663 public void writeToParcel(Parcel dest, int flags) { 2664 dest.writeLong(availMem); 2665 dest.writeLong(totalMem); 2666 dest.writeLong(threshold); 2667 dest.writeInt(lowMemory ? 1 : 0); 2668 dest.writeLong(hiddenAppThreshold); 2669 dest.writeLong(secondaryServerThreshold); 2670 dest.writeLong(visibleAppThreshold); 2671 dest.writeLong(foregroundAppThreshold); 2672 } 2673 2674 public void readFromParcel(Parcel source) { 2675 availMem = source.readLong(); 2676 totalMem = source.readLong(); 2677 threshold = source.readLong(); 2678 lowMemory = source.readInt() != 0; 2679 hiddenAppThreshold = source.readLong(); 2680 secondaryServerThreshold = source.readLong(); 2681 visibleAppThreshold = source.readLong(); 2682 foregroundAppThreshold = source.readLong(); 2683 } 2684 2685 public static final Creator<MemoryInfo> CREATOR 2686 = new Creator<MemoryInfo>() { 2687 public MemoryInfo createFromParcel(Parcel source) { 2688 return new MemoryInfo(source); 2689 } 2690 public MemoryInfo[] newArray(int size) { 2691 return new MemoryInfo[size]; 2692 } 2693 }; 2694 2695 private MemoryInfo(Parcel source) { 2696 readFromParcel(source); 2697 } 2698 } 2699 2700 /** 2701 * Return general information about the memory state of the system. This 2702 * can be used to help decide how to manage your own memory, though note 2703 * that polling is not recommended and 2704 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2705 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2706 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2707 * level of your process as needed, which gives a better hint for how to 2708 * manage its memory. 2709 */ 2710 public void getMemoryInfo(MemoryInfo outInfo) { 2711 try { 2712 getService().getMemoryInfo(outInfo); 2713 } catch (RemoteException e) { 2714 throw e.rethrowFromSystemServer(); 2715 } 2716 } 2717 2718 /** 2719 * Information you can retrieve about an ActivityStack in the system. 2720 * @hide 2721 */ 2722 public static class StackInfo implements Parcelable { 2723 public int stackId; 2724 public Rect bounds = new Rect(); 2725 public int[] taskIds; 2726 public String[] taskNames; 2727 public Rect[] taskBounds; 2728 public int[] taskUserIds; 2729 public ComponentName topActivity; 2730 public int displayId; 2731 public int userId; 2732 public boolean visible; 2733 // Index of the stack in the display's stack list, can be used for comparison of stack order 2734 public int position; 2735 2736 @Override 2737 public int describeContents() { 2738 return 0; 2739 } 2740 2741 @Override 2742 public void writeToParcel(Parcel dest, int flags) { 2743 dest.writeInt(stackId); 2744 dest.writeInt(bounds.left); 2745 dest.writeInt(bounds.top); 2746 dest.writeInt(bounds.right); 2747 dest.writeInt(bounds.bottom); 2748 dest.writeIntArray(taskIds); 2749 dest.writeStringArray(taskNames); 2750 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2751 dest.writeInt(boundsCount); 2752 for (int i = 0; i < boundsCount; i++) { 2753 dest.writeInt(taskBounds[i].left); 2754 dest.writeInt(taskBounds[i].top); 2755 dest.writeInt(taskBounds[i].right); 2756 dest.writeInt(taskBounds[i].bottom); 2757 } 2758 dest.writeIntArray(taskUserIds); 2759 dest.writeInt(displayId); 2760 dest.writeInt(userId); 2761 dest.writeInt(visible ? 1 : 0); 2762 dest.writeInt(position); 2763 if (topActivity != null) { 2764 dest.writeInt(1); 2765 topActivity.writeToParcel(dest, 0); 2766 } else { 2767 dest.writeInt(0); 2768 } 2769 } 2770 2771 public void readFromParcel(Parcel source) { 2772 stackId = source.readInt(); 2773 bounds = new Rect( 2774 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2775 taskIds = source.createIntArray(); 2776 taskNames = source.createStringArray(); 2777 final int boundsCount = source.readInt(); 2778 if (boundsCount > 0) { 2779 taskBounds = new Rect[boundsCount]; 2780 for (int i = 0; i < boundsCount; i++) { 2781 taskBounds[i] = new Rect(); 2782 taskBounds[i].set( 2783 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2784 } 2785 } else { 2786 taskBounds = null; 2787 } 2788 taskUserIds = source.createIntArray(); 2789 displayId = source.readInt(); 2790 userId = source.readInt(); 2791 visible = source.readInt() > 0; 2792 position = source.readInt(); 2793 if (source.readInt() > 0) { 2794 topActivity = ComponentName.readFromParcel(source); 2795 } 2796 } 2797 2798 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2799 @Override 2800 public StackInfo createFromParcel(Parcel source) { 2801 return new StackInfo(source); 2802 } 2803 @Override 2804 public StackInfo[] newArray(int size) { 2805 return new StackInfo[size]; 2806 } 2807 }; 2808 2809 public StackInfo() { 2810 } 2811 2812 private StackInfo(Parcel source) { 2813 readFromParcel(source); 2814 } 2815 2816 public String toString(String prefix) { 2817 StringBuilder sb = new StringBuilder(256); 2818 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2819 sb.append(" bounds="); sb.append(bounds.toShortString()); 2820 sb.append(" displayId="); sb.append(displayId); 2821 sb.append(" userId="); sb.append(userId); 2822 sb.append("\n"); 2823 prefix = prefix + " "; 2824 for (int i = 0; i < taskIds.length; ++i) { 2825 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2826 sb.append(": "); sb.append(taskNames[i]); 2827 if (taskBounds != null) { 2828 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2829 } 2830 sb.append(" userId=").append(taskUserIds[i]); 2831 sb.append(" visible=").append(visible); 2832 if (topActivity != null) { 2833 sb.append(" topActivity=").append(topActivity); 2834 } 2835 sb.append("\n"); 2836 } 2837 return sb.toString(); 2838 } 2839 2840 @Override 2841 public String toString() { 2842 return toString(""); 2843 } 2844 } 2845 2846 /** 2847 * @hide 2848 */ 2849 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2850 try { 2851 return getService().clearApplicationUserData(packageName, 2852 observer, UserHandle.myUserId()); 2853 } catch (RemoteException e) { 2854 throw e.rethrowFromSystemServer(); 2855 } 2856 } 2857 2858 /** 2859 * Permits an application to erase its own data from disk. This is equivalent to 2860 * the user choosing to clear the app's data from within the device settings UI. It 2861 * erases all dynamic data associated with the app -- its private data and data in its 2862 * private area on external storage -- but does not remove the installed application 2863 * itself, nor any OBB files. 2864 * 2865 * @return {@code true} if the application successfully requested that the application's 2866 * data be erased; {@code false} otherwise. 2867 */ 2868 public boolean clearApplicationUserData() { 2869 return clearApplicationUserData(mContext.getPackageName(), null); 2870 } 2871 2872 2873 /** 2874 * Permits an application to get the persistent URI permissions granted to another. 2875 * 2876 * <p>Typically called by Settings. 2877 * 2878 * @param packageName application to look for the granted permissions 2879 * @return list of granted URI permissions 2880 * 2881 * @hide 2882 */ 2883 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2884 try { 2885 return getService().getGrantedUriPermissions(packageName, 2886 UserHandle.myUserId()); 2887 } catch (RemoteException e) { 2888 throw e.rethrowFromSystemServer(); 2889 } 2890 } 2891 2892 /** 2893 * Permits an application to clear the persistent URI permissions granted to another. 2894 * 2895 * <p>Typically called by Settings. 2896 * 2897 * @param packageName application to clear its granted permissions 2898 * 2899 * @hide 2900 */ 2901 public void clearGrantedUriPermissions(String packageName) { 2902 try { 2903 getService().clearGrantedUriPermissions(packageName, 2904 UserHandle.myUserId()); 2905 } catch (RemoteException e) { 2906 throw e.rethrowFromSystemServer(); 2907 } 2908 } 2909 2910 /** 2911 * Information you can retrieve about any processes that are in an error condition. 2912 */ 2913 public static class ProcessErrorStateInfo implements Parcelable { 2914 /** 2915 * Condition codes 2916 */ 2917 public static final int NO_ERROR = 0; 2918 public static final int CRASHED = 1; 2919 public static final int NOT_RESPONDING = 2; 2920 2921 /** 2922 * The condition that the process is in. 2923 */ 2924 public int condition; 2925 2926 /** 2927 * The process name in which the crash or error occurred. 2928 */ 2929 public String processName; 2930 2931 /** 2932 * The pid of this process; 0 if none 2933 */ 2934 public int pid; 2935 2936 /** 2937 * The kernel user-ID that has been assigned to this process; 2938 * currently this is not a unique ID (multiple applications can have 2939 * the same uid). 2940 */ 2941 public int uid; 2942 2943 /** 2944 * The activity name associated with the error, if known. May be null. 2945 */ 2946 public String tag; 2947 2948 /** 2949 * A short message describing the error condition. 2950 */ 2951 public String shortMsg; 2952 2953 /** 2954 * A long message describing the error condition. 2955 */ 2956 public String longMsg; 2957 2958 /** 2959 * The stack trace where the error originated. May be null. 2960 */ 2961 public String stackTrace; 2962 2963 /** 2964 * to be deprecated: This value will always be null. 2965 */ 2966 public byte[] crashData = null; 2967 2968 public ProcessErrorStateInfo() { 2969 } 2970 2971 @Override 2972 public int describeContents() { 2973 return 0; 2974 } 2975 2976 @Override 2977 public void writeToParcel(Parcel dest, int flags) { 2978 dest.writeInt(condition); 2979 dest.writeString(processName); 2980 dest.writeInt(pid); 2981 dest.writeInt(uid); 2982 dest.writeString(tag); 2983 dest.writeString(shortMsg); 2984 dest.writeString(longMsg); 2985 dest.writeString(stackTrace); 2986 } 2987 2988 public void readFromParcel(Parcel source) { 2989 condition = source.readInt(); 2990 processName = source.readString(); 2991 pid = source.readInt(); 2992 uid = source.readInt(); 2993 tag = source.readString(); 2994 shortMsg = source.readString(); 2995 longMsg = source.readString(); 2996 stackTrace = source.readString(); 2997 } 2998 2999 public static final Creator<ProcessErrorStateInfo> CREATOR = 3000 new Creator<ProcessErrorStateInfo>() { 3001 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3002 return new ProcessErrorStateInfo(source); 3003 } 3004 public ProcessErrorStateInfo[] newArray(int size) { 3005 return new ProcessErrorStateInfo[size]; 3006 } 3007 }; 3008 3009 private ProcessErrorStateInfo(Parcel source) { 3010 readFromParcel(source); 3011 } 3012 } 3013 3014 /** 3015 * Returns a list of any processes that are currently in an error condition. The result 3016 * will be null if all processes are running properly at this time. 3017 * 3018 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3019 * current error conditions (it will not return an empty list). This list ordering is not 3020 * specified. 3021 */ 3022 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3023 try { 3024 return getService().getProcessesInErrorState(); 3025 } catch (RemoteException e) { 3026 throw e.rethrowFromSystemServer(); 3027 } 3028 } 3029 3030 /** 3031 * Information you can retrieve about a running process. 3032 */ 3033 public static class RunningAppProcessInfo implements Parcelable { 3034 /** 3035 * The name of the process that this object is associated with 3036 */ 3037 public String processName; 3038 3039 /** 3040 * The pid of this process; 0 if none 3041 */ 3042 public int pid; 3043 3044 /** 3045 * The user id of this process. 3046 */ 3047 public int uid; 3048 3049 /** 3050 * All packages that have been loaded into the process. 3051 */ 3052 public String pkgList[]; 3053 3054 /** 3055 * Constant for {@link #flags}: this is an app that is unable to 3056 * correctly save its state when going to the background, 3057 * so it can not be killed while in the background. 3058 * @hide 3059 */ 3060 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3061 3062 /** 3063 * Constant for {@link #flags}: this process is associated with a 3064 * persistent system app. 3065 * @hide 3066 */ 3067 public static final int FLAG_PERSISTENT = 1<<1; 3068 3069 /** 3070 * Constant for {@link #flags}: this process is associated with a 3071 * persistent system app. 3072 * @hide 3073 */ 3074 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3075 3076 /** 3077 * Flags of information. May be any of 3078 * {@link #FLAG_CANT_SAVE_STATE}. 3079 * @hide 3080 */ 3081 public int flags; 3082 3083 /** 3084 * Last memory trim level reported to the process: corresponds to 3085 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3086 * ComponentCallbacks2.onTrimMemory(int)}. 3087 */ 3088 public int lastTrimLevel; 3089 3090 /** @hide */ 3091 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3092 IMPORTANCE_FOREGROUND, 3093 IMPORTANCE_FOREGROUND_SERVICE, 3094 IMPORTANCE_TOP_SLEEPING, 3095 IMPORTANCE_VISIBLE, 3096 IMPORTANCE_PERCEPTIBLE, 3097 IMPORTANCE_CANT_SAVE_STATE, 3098 IMPORTANCE_SERVICE, 3099 IMPORTANCE_CACHED, 3100 IMPORTANCE_GONE, 3101 }) 3102 @Retention(RetentionPolicy.SOURCE) 3103 public @interface Importance {} 3104 3105 /** 3106 * Constant for {@link #importance}: This process is running the 3107 * foreground UI; that is, it is the thing currently at the top of the screen 3108 * that the user is interacting with. 3109 */ 3110 public static final int IMPORTANCE_FOREGROUND = 100; 3111 3112 /** 3113 * Constant for {@link #importance}: This process is running a foreground 3114 * service, for example to perform music playback even while the user is 3115 * not immediately in the app. This generally indicates that the process 3116 * is doing something the user actively cares about. 3117 */ 3118 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3119 3120 /** 3121 * Constant for {@link #importance}: This process is running the foreground 3122 * UI, but the device is asleep so it is not visible to the user. This means 3123 * the user is not really aware of the process, because they can not see or 3124 * interact with it, but it is quite important because it what they expect to 3125 * return to once unlocking the device. 3126 */ 3127 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3128 3129 /** 3130 * Constant for {@link #importance}: This process is running something 3131 * that is actively visible to the user, though not in the immediate 3132 * foreground. This may be running a window that is behind the current 3133 * foreground (so paused and with its state saved, not interacting with 3134 * the user, but visible to them to some degree); it may also be running 3135 * other services under the system's control that it inconsiders important. 3136 */ 3137 public static final int IMPORTANCE_VISIBLE = 200; 3138 3139 /** 3140 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3141 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3142 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3143 * 3144 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3145 * on Android versions below {@link Build.VERSION_CODES#O}. 3146 * 3147 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3148 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3149 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3150 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3151 */ 3152 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3153 3154 /** 3155 * Constant for {@link #importance}: This process is not something the user 3156 * is directly aware of, but is otherwise perceptible to them to some degree. 3157 */ 3158 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3159 3160 /** 3161 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3162 * this wrong value 3163 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3164 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3165 * 3166 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3167 * on Android versions below {@link Build.VERSION_CODES#O}. 3168 * 3169 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3170 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3171 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3172 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3173 * 3174 * @hide 3175 */ 3176 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3177 3178 /** 3179 * Constant for {@link #importance}: This process is running an 3180 * application that can not save its state, and thus can't be killed 3181 * while in the background. 3182 * @hide 3183 */ 3184 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3185 3186 /** 3187 * Constant for {@link #importance}: This process is contains services 3188 * that should remain running. These are background services apps have 3189 * started, not something the user is aware of, so they may be killed by 3190 * the system relatively freely (though it is generally desired that they 3191 * stay running as long as they want to). 3192 */ 3193 public static final int IMPORTANCE_SERVICE = 300; 3194 3195 /** 3196 * Constant for {@link #importance}: This process process contains 3197 * cached code that is expendable, not actively running any app components 3198 * we care about. 3199 */ 3200 public static final int IMPORTANCE_CACHED = 400; 3201 3202 /** 3203 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3204 */ 3205 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3206 3207 /** 3208 * Constant for {@link #importance}: This process is empty of any 3209 * actively running code. 3210 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3211 */ 3212 @Deprecated 3213 public static final int IMPORTANCE_EMPTY = 500; 3214 3215 /** 3216 * Constant for {@link #importance}: This process does not exist. 3217 */ 3218 public static final int IMPORTANCE_GONE = 1000; 3219 3220 /** 3221 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3222 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3223 * @hide 3224 */ 3225 public static @Importance int procStateToImportance(int procState) { 3226 if (procState == PROCESS_STATE_NONEXISTENT) { 3227 return IMPORTANCE_GONE; 3228 } else if (procState >= PROCESS_STATE_HOME) { 3229 return IMPORTANCE_CACHED; 3230 } else if (procState >= PROCESS_STATE_SERVICE) { 3231 return IMPORTANCE_SERVICE; 3232 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3233 return IMPORTANCE_CANT_SAVE_STATE; 3234 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3235 return IMPORTANCE_PERCEPTIBLE; 3236 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3237 return IMPORTANCE_VISIBLE; 3238 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3239 return IMPORTANCE_TOP_SLEEPING; 3240 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3241 return IMPORTANCE_FOREGROUND_SERVICE; 3242 } else { 3243 return IMPORTANCE_FOREGROUND; 3244 } 3245 } 3246 3247 /** 3248 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3249 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3250 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3251 * client's target SDK < {@link VERSION_CODES#O}. 3252 * @hide 3253 */ 3254 public static @Importance int procStateToImportanceForClient(int procState, 3255 Context clientContext) { 3256 return procStateToImportanceForTargetSdk(procState, 3257 clientContext.getApplicationInfo().targetSdkVersion); 3258 } 3259 3260 /** 3261 * See {@link #procStateToImportanceForClient}. 3262 * @hide 3263 */ 3264 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3265 int targetSdkVersion) { 3266 final int importance = procStateToImportance(procState); 3267 3268 // For pre O apps, convert to the old, wrong values. 3269 if (targetSdkVersion < VERSION_CODES.O) { 3270 switch (importance) { 3271 case IMPORTANCE_PERCEPTIBLE: 3272 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3273 case IMPORTANCE_CANT_SAVE_STATE: 3274 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3275 } 3276 } 3277 return importance; 3278 } 3279 3280 /** @hide */ 3281 public static int importanceToProcState(@Importance int importance) { 3282 if (importance == IMPORTANCE_GONE) { 3283 return PROCESS_STATE_NONEXISTENT; 3284 } else if (importance >= IMPORTANCE_CACHED) { 3285 return PROCESS_STATE_HOME; 3286 } else if (importance >= IMPORTANCE_SERVICE) { 3287 return PROCESS_STATE_SERVICE; 3288 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3289 return PROCESS_STATE_HEAVY_WEIGHT; 3290 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3291 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3292 } else if (importance >= IMPORTANCE_VISIBLE) { 3293 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3294 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3295 return PROCESS_STATE_TOP_SLEEPING; 3296 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3297 return PROCESS_STATE_FOREGROUND_SERVICE; 3298 } else { 3299 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3300 } 3301 } 3302 3303 /** 3304 * The relative importance level that the system places on this process. 3305 * These constants are numbered so that "more important" values are 3306 * always smaller than "less important" values. 3307 */ 3308 public @Importance int importance; 3309 3310 /** 3311 * An additional ordering within a particular {@link #importance} 3312 * category, providing finer-grained information about the relative 3313 * utility of processes within a category. This number means nothing 3314 * except that a smaller values are more recently used (and thus 3315 * more important). Currently an LRU value is only maintained for 3316 * the {@link #IMPORTANCE_CACHED} category, though others may 3317 * be maintained in the future. 3318 */ 3319 public int lru; 3320 3321 /** 3322 * Constant for {@link #importanceReasonCode}: nothing special has 3323 * been specified for the reason for this level. 3324 */ 3325 public static final int REASON_UNKNOWN = 0; 3326 3327 /** 3328 * Constant for {@link #importanceReasonCode}: one of the application's 3329 * content providers is being used by another process. The pid of 3330 * the client process is in {@link #importanceReasonPid} and the 3331 * target provider in this process is in 3332 * {@link #importanceReasonComponent}. 3333 */ 3334 public static final int REASON_PROVIDER_IN_USE = 1; 3335 3336 /** 3337 * Constant for {@link #importanceReasonCode}: one of the application's 3338 * content providers is being used by another process. The pid of 3339 * the client process is in {@link #importanceReasonPid} and the 3340 * target provider in this process is in 3341 * {@link #importanceReasonComponent}. 3342 */ 3343 public static final int REASON_SERVICE_IN_USE = 2; 3344 3345 /** 3346 * The reason for {@link #importance}, if any. 3347 */ 3348 public int importanceReasonCode; 3349 3350 /** 3351 * For the specified values of {@link #importanceReasonCode}, this 3352 * is the process ID of the other process that is a client of this 3353 * process. This will be 0 if no other process is using this one. 3354 */ 3355 public int importanceReasonPid; 3356 3357 /** 3358 * For the specified values of {@link #importanceReasonCode}, this 3359 * is the name of the component that is being used in this process. 3360 */ 3361 public ComponentName importanceReasonComponent; 3362 3363 /** 3364 * When {@link #importanceReasonPid} is non-0, this is the importance 3365 * of the other pid. @hide 3366 */ 3367 public int importanceReasonImportance; 3368 3369 /** 3370 * Current process state, as per PROCESS_STATE_* constants. 3371 * @hide 3372 */ 3373 public int processState; 3374 3375 public RunningAppProcessInfo() { 3376 importance = IMPORTANCE_FOREGROUND; 3377 importanceReasonCode = REASON_UNKNOWN; 3378 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3379 } 3380 3381 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3382 processName = pProcessName; 3383 pid = pPid; 3384 pkgList = pArr; 3385 } 3386 3387 public int describeContents() { 3388 return 0; 3389 } 3390 3391 public void writeToParcel(Parcel dest, int flags) { 3392 dest.writeString(processName); 3393 dest.writeInt(pid); 3394 dest.writeInt(uid); 3395 dest.writeStringArray(pkgList); 3396 dest.writeInt(this.flags); 3397 dest.writeInt(lastTrimLevel); 3398 dest.writeInt(importance); 3399 dest.writeInt(lru); 3400 dest.writeInt(importanceReasonCode); 3401 dest.writeInt(importanceReasonPid); 3402 ComponentName.writeToParcel(importanceReasonComponent, dest); 3403 dest.writeInt(importanceReasonImportance); 3404 dest.writeInt(processState); 3405 } 3406 3407 public void readFromParcel(Parcel source) { 3408 processName = source.readString(); 3409 pid = source.readInt(); 3410 uid = source.readInt(); 3411 pkgList = source.readStringArray(); 3412 flags = source.readInt(); 3413 lastTrimLevel = source.readInt(); 3414 importance = source.readInt(); 3415 lru = source.readInt(); 3416 importanceReasonCode = source.readInt(); 3417 importanceReasonPid = source.readInt(); 3418 importanceReasonComponent = ComponentName.readFromParcel(source); 3419 importanceReasonImportance = source.readInt(); 3420 processState = source.readInt(); 3421 } 3422 3423 public static final Creator<RunningAppProcessInfo> CREATOR = 3424 new Creator<RunningAppProcessInfo>() { 3425 public RunningAppProcessInfo createFromParcel(Parcel source) { 3426 return new RunningAppProcessInfo(source); 3427 } 3428 public RunningAppProcessInfo[] newArray(int size) { 3429 return new RunningAppProcessInfo[size]; 3430 } 3431 }; 3432 3433 private RunningAppProcessInfo(Parcel source) { 3434 readFromParcel(source); 3435 } 3436 } 3437 3438 /** 3439 * Returns a list of application processes installed on external media 3440 * that are running on the device. 3441 * 3442 * <p><b>Note: this method is only intended for debugging or building 3443 * a user-facing process management UI.</b></p> 3444 * 3445 * @return Returns a list of ApplicationInfo records, or null if none 3446 * This list ordering is not specified. 3447 * @hide 3448 */ 3449 public List<ApplicationInfo> getRunningExternalApplications() { 3450 try { 3451 return getService().getRunningExternalApplications(); 3452 } catch (RemoteException e) { 3453 throw e.rethrowFromSystemServer(); 3454 } 3455 } 3456 3457 /** 3458 * Sets the memory trim mode for a process and schedules a memory trim operation. 3459 * 3460 * <p><b>Note: this method is only intended for testing framework.</b></p> 3461 * 3462 * @return Returns true if successful. 3463 * @hide 3464 */ 3465 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3466 try { 3467 return getService().setProcessMemoryTrimLevel(process, userId, 3468 level); 3469 } catch (RemoteException e) { 3470 throw e.rethrowFromSystemServer(); 3471 } 3472 } 3473 3474 /** 3475 * Returns a list of application processes that are running on the device. 3476 * 3477 * <p><b>Note: this method is only intended for debugging or building 3478 * a user-facing process management UI.</b></p> 3479 * 3480 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3481 * running processes (it will not return an empty list). This list ordering is not 3482 * specified. 3483 */ 3484 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3485 try { 3486 return getService().getRunningAppProcesses(); 3487 } catch (RemoteException e) { 3488 throw e.rethrowFromSystemServer(); 3489 } 3490 } 3491 3492 /** 3493 * Return the importance of a given package name, based on the processes that are 3494 * currently running. The return value is one of the importance constants defined 3495 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3496 * processes that this package has code running inside of. If there are no processes 3497 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3498 * @hide 3499 */ 3500 @SystemApi @TestApi 3501 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3502 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3503 try { 3504 int procState = getService().getPackageProcessState(packageName, 3505 mContext.getOpPackageName()); 3506 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3507 } catch (RemoteException e) { 3508 throw e.rethrowFromSystemServer(); 3509 } 3510 } 3511 3512 /** 3513 * Return the importance of a given uid, based on the processes that are 3514 * currently running. The return value is one of the importance constants defined 3515 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3516 * processes that this uid has running. If there are no processes 3517 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3518 * @hide 3519 */ 3520 @SystemApi @TestApi 3521 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3522 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3523 try { 3524 int procState = getService().getUidProcessState(uid, 3525 mContext.getOpPackageName()); 3526 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3527 } catch (RemoteException e) { 3528 throw e.rethrowFromSystemServer(); 3529 } 3530 } 3531 3532 /** 3533 * Callback to get reports about changes to the importance of a uid. Use with 3534 * {@link #addOnUidImportanceListener}. 3535 * @hide 3536 */ 3537 @SystemApi @TestApi 3538 public interface OnUidImportanceListener { 3539 /** 3540 * The importance if a given uid has changed. Will be one of the importance 3541 * values in {@link RunningAppProcessInfo}; 3542 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3543 * when the uid is no longer running at all. This callback will happen on a thread 3544 * from a thread pool, not the main UI thread. 3545 * @param uid The uid whose importance has changed. 3546 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3547 */ 3548 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3549 } 3550 3551 /** 3552 * Start monitoring changes to the imoportance of uids running in the system. 3553 * @param listener The listener callback that will receive change reports. 3554 * @param importanceCutpoint The level of importance in which the caller is interested 3555 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3556 * is used here, you will receive a call each time a uids importance transitions between 3557 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3558 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3559 * 3560 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3561 * permission to use this feature.</p> 3562 * 3563 * @throws IllegalArgumentException If the listener is already registered. 3564 * @throws SecurityException If the caller does not hold 3565 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3566 * @hide 3567 */ 3568 @SystemApi @TestApi 3569 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3570 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3571 synchronized (this) { 3572 if (mImportanceListeners.containsKey(listener)) { 3573 throw new IllegalArgumentException("Listener already registered: " + listener); 3574 } 3575 // TODO: implement the cut point in the system process to avoid IPCs. 3576 UidObserver observer = new UidObserver(listener, mContext); 3577 try { 3578 getService().registerUidObserver(observer, 3579 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3580 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3581 mContext.getOpPackageName()); 3582 } catch (RemoteException e) { 3583 throw e.rethrowFromSystemServer(); 3584 } 3585 mImportanceListeners.put(listener, observer); 3586 } 3587 } 3588 3589 /** 3590 * Remove an importance listener that was previously registered with 3591 * {@link #addOnUidImportanceListener}. 3592 * 3593 * @throws IllegalArgumentException If the listener is not registered. 3594 * @hide 3595 */ 3596 @SystemApi @TestApi 3597 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3598 synchronized (this) { 3599 UidObserver observer = mImportanceListeners.remove(listener); 3600 if (observer == null) { 3601 throw new IllegalArgumentException("Listener not registered: " + listener); 3602 } 3603 try { 3604 getService().unregisterUidObserver(observer); 3605 } catch (RemoteException e) { 3606 throw e.rethrowFromSystemServer(); 3607 } 3608 } 3609 } 3610 3611 /** 3612 * Return global memory state information for the calling process. This 3613 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3614 * only fields that will be filled in are 3615 * {@link RunningAppProcessInfo#pid}, 3616 * {@link RunningAppProcessInfo#uid}, 3617 * {@link RunningAppProcessInfo#lastTrimLevel}, 3618 * {@link RunningAppProcessInfo#importance}, 3619 * {@link RunningAppProcessInfo#lru}, and 3620 * {@link RunningAppProcessInfo#importanceReasonCode}. 3621 */ 3622 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3623 try { 3624 getService().getMyMemoryState(outState); 3625 } catch (RemoteException e) { 3626 throw e.rethrowFromSystemServer(); 3627 } 3628 } 3629 3630 /** 3631 * Return information about the memory usage of one or more processes. 3632 * 3633 * <p><b>Note: this method is only intended for debugging or building 3634 * a user-facing process management UI.</b></p> 3635 * 3636 * @param pids The pids of the processes whose memory usage is to be 3637 * retrieved. 3638 * @return Returns an array of memory information, one for each 3639 * requested pid. 3640 */ 3641 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3642 try { 3643 return getService().getProcessMemoryInfo(pids); 3644 } catch (RemoteException e) { 3645 throw e.rethrowFromSystemServer(); 3646 } 3647 } 3648 3649 /** 3650 * @deprecated This is now just a wrapper for 3651 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3652 * is no longer available to applications because it allows them to 3653 * break other applications by removing their alarms, stopping their 3654 * services, etc. 3655 */ 3656 @Deprecated 3657 public void restartPackage(String packageName) { 3658 killBackgroundProcesses(packageName); 3659 } 3660 3661 /** 3662 * Have the system immediately kill all background processes associated 3663 * with the given package. This is the same as the kernel killing those 3664 * processes to reclaim memory; the system will take care of restarting 3665 * these processes in the future as needed. 3666 * 3667 * @param packageName The name of the package whose processes are to 3668 * be killed. 3669 */ 3670 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3671 public void killBackgroundProcesses(String packageName) { 3672 try { 3673 getService().killBackgroundProcesses(packageName, 3674 UserHandle.myUserId()); 3675 } catch (RemoteException e) { 3676 throw e.rethrowFromSystemServer(); 3677 } 3678 } 3679 3680 /** 3681 * Kills the specified UID. 3682 * @param uid The UID to kill. 3683 * @param reason The reason for the kill. 3684 * 3685 * @hide 3686 */ 3687 @SystemApi 3688 @RequiresPermission(Manifest.permission.KILL_UID) 3689 public void killUid(int uid, String reason) { 3690 try { 3691 getService().killUid(UserHandle.getAppId(uid), 3692 UserHandle.getUserId(uid), reason); 3693 } catch (RemoteException e) { 3694 throw e.rethrowFromSystemServer(); 3695 } 3696 } 3697 3698 /** 3699 * Have the system perform a force stop of everything associated with 3700 * the given application package. All processes that share its uid 3701 * will be killed, all services it has running stopped, all activities 3702 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3703 * broadcast will be sent, so that any of its registered alarms can 3704 * be stopped, notifications removed, etc. 3705 * 3706 * <p>You must hold the permission 3707 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3708 * call this method. 3709 * 3710 * @param packageName The name of the package to be stopped. 3711 * @param userId The user for which the running package is to be stopped. 3712 * 3713 * @hide This is not available to third party applications due to 3714 * it allowing them to break other applications by stopping their 3715 * services, removing their alarms, etc. 3716 */ 3717 public void forceStopPackageAsUser(String packageName, int userId) { 3718 try { 3719 getService().forceStopPackage(packageName, userId); 3720 } catch (RemoteException e) { 3721 throw e.rethrowFromSystemServer(); 3722 } 3723 } 3724 3725 /** 3726 * @see #forceStopPackageAsUser(String, int) 3727 * @hide 3728 */ 3729 @SystemApi 3730 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3731 public void forceStopPackage(String packageName) { 3732 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3733 } 3734 3735 /** 3736 * Get the device configuration attributes. 3737 */ 3738 public ConfigurationInfo getDeviceConfigurationInfo() { 3739 try { 3740 return getService().getDeviceConfigurationInfo(); 3741 } catch (RemoteException e) { 3742 throw e.rethrowFromSystemServer(); 3743 } 3744 } 3745 3746 /** 3747 * Get the preferred density of icons for the launcher. This is used when 3748 * custom drawables are created (e.g., for shortcuts). 3749 * 3750 * @return density in terms of DPI 3751 */ 3752 public int getLauncherLargeIconDensity() { 3753 final Resources res = mContext.getResources(); 3754 final int density = res.getDisplayMetrics().densityDpi; 3755 final int sw = res.getConfiguration().smallestScreenWidthDp; 3756 3757 if (sw < 600) { 3758 // Smaller than approx 7" tablets, use the regular icon size. 3759 return density; 3760 } 3761 3762 switch (density) { 3763 case DisplayMetrics.DENSITY_LOW: 3764 return DisplayMetrics.DENSITY_MEDIUM; 3765 case DisplayMetrics.DENSITY_MEDIUM: 3766 return DisplayMetrics.DENSITY_HIGH; 3767 case DisplayMetrics.DENSITY_TV: 3768 return DisplayMetrics.DENSITY_XHIGH; 3769 case DisplayMetrics.DENSITY_HIGH: 3770 return DisplayMetrics.DENSITY_XHIGH; 3771 case DisplayMetrics.DENSITY_XHIGH: 3772 return DisplayMetrics.DENSITY_XXHIGH; 3773 case DisplayMetrics.DENSITY_XXHIGH: 3774 return DisplayMetrics.DENSITY_XHIGH * 2; 3775 default: 3776 // The density is some abnormal value. Return some other 3777 // abnormal value that is a reasonable scaling of it. 3778 return (int)((density*1.5f)+.5f); 3779 } 3780 } 3781 3782 /** 3783 * Get the preferred launcher icon size. This is used when custom drawables 3784 * are created (e.g., for shortcuts). 3785 * 3786 * @return dimensions of square icons in terms of pixels 3787 */ 3788 public int getLauncherLargeIconSize() { 3789 return getLauncherLargeIconSizeInner(mContext); 3790 } 3791 3792 static int getLauncherLargeIconSizeInner(Context context) { 3793 final Resources res = context.getResources(); 3794 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3795 final int sw = res.getConfiguration().smallestScreenWidthDp; 3796 3797 if (sw < 600) { 3798 // Smaller than approx 7" tablets, use the regular icon size. 3799 return size; 3800 } 3801 3802 final int density = res.getDisplayMetrics().densityDpi; 3803 3804 switch (density) { 3805 case DisplayMetrics.DENSITY_LOW: 3806 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3807 case DisplayMetrics.DENSITY_MEDIUM: 3808 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3809 case DisplayMetrics.DENSITY_TV: 3810 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3811 case DisplayMetrics.DENSITY_HIGH: 3812 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3813 case DisplayMetrics.DENSITY_XHIGH: 3814 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3815 case DisplayMetrics.DENSITY_XXHIGH: 3816 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3817 default: 3818 // The density is some abnormal value. Return some other 3819 // abnormal value that is a reasonable scaling of it. 3820 return (int)((size*1.5f) + .5f); 3821 } 3822 } 3823 3824 /** 3825 * Returns "true" if the user interface is currently being messed with 3826 * by a monkey. 3827 */ 3828 public static boolean isUserAMonkey() { 3829 try { 3830 return getService().isUserAMonkey(); 3831 } catch (RemoteException e) { 3832 throw e.rethrowFromSystemServer(); 3833 } 3834 } 3835 3836 /** 3837 * Returns "true" if device is running in a test harness. 3838 */ 3839 public static boolean isRunningInTestHarness() { 3840 return SystemProperties.getBoolean("ro.test_harness", false); 3841 } 3842 3843 /** 3844 * Returns the launch count of each installed package. 3845 * 3846 * @hide 3847 */ 3848 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3849 try { 3850 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3851 ServiceManager.getService("usagestats")); 3852 if (usageStatsService == null) { 3853 return new HashMap<String, Integer>(); 3854 } 3855 3856 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3857 ActivityThread.currentPackageName()); 3858 if (allPkgUsageStats == null) { 3859 return new HashMap<String, Integer>(); 3860 } 3861 3862 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3863 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3864 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3865 } 3866 3867 return launchCounts; 3868 } catch (RemoteException e) { 3869 Log.w(TAG, "Could not query launch counts", e); 3870 return new HashMap<String, Integer>(); 3871 } 3872 }*/ 3873 3874 /** @hide */ 3875 public static int checkComponentPermission(String permission, int uid, 3876 int owningUid, boolean exported) { 3877 // Root, system server get to do everything. 3878 final int appId = UserHandle.getAppId(uid); 3879 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3880 return PackageManager.PERMISSION_GRANTED; 3881 } 3882 // Isolated processes don't get any permissions. 3883 if (UserHandle.isIsolated(uid)) { 3884 return PackageManager.PERMISSION_DENIED; 3885 } 3886 // If there is a uid that owns whatever is being accessed, it has 3887 // blanket access to it regardless of the permissions it requires. 3888 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3889 return PackageManager.PERMISSION_GRANTED; 3890 } 3891 // If the target is not exported, then nobody else can get to it. 3892 if (!exported) { 3893 /* 3894 RuntimeException here = new RuntimeException("here"); 3895 here.fillInStackTrace(); 3896 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3897 here); 3898 */ 3899 return PackageManager.PERMISSION_DENIED; 3900 } 3901 if (permission == null) { 3902 return PackageManager.PERMISSION_GRANTED; 3903 } 3904 try { 3905 return AppGlobals.getPackageManager() 3906 .checkUidPermission(permission, uid); 3907 } catch (RemoteException e) { 3908 throw e.rethrowFromSystemServer(); 3909 } 3910 } 3911 3912 /** @hide */ 3913 public static int checkUidPermission(String permission, int uid) { 3914 try { 3915 return AppGlobals.getPackageManager() 3916 .checkUidPermission(permission, uid); 3917 } catch (RemoteException e) { 3918 throw e.rethrowFromSystemServer(); 3919 } 3920 } 3921 3922 /** 3923 * @hide 3924 * Helper for dealing with incoming user arguments to system service calls. 3925 * Takes care of checking permissions and converting USER_CURRENT to the 3926 * actual current user. 3927 * 3928 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3929 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3930 * @param userId The user id argument supplied by the caller -- this is the user 3931 * they want to run as. 3932 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3933 * to get a USER_ALL returned and deal with it correctly. If false, 3934 * an exception will be thrown if USER_ALL is supplied. 3935 * @param requireFull If true, the caller must hold 3936 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3937 * different user than their current process; otherwise they must hold 3938 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3939 * @param name Optional textual name of the incoming call; only for generating error messages. 3940 * @param callerPackage Optional package name of caller; only for error messages. 3941 * 3942 * @return Returns the user ID that the call should run as. Will always be a concrete 3943 * user number, unless <var>allowAll</var> is true in which case it could also be 3944 * USER_ALL. 3945 */ 3946 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3947 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3948 if (UserHandle.getUserId(callingUid) == userId) { 3949 return userId; 3950 } 3951 try { 3952 return getService().handleIncomingUser(callingPid, 3953 callingUid, userId, allowAll, requireFull, name, callerPackage); 3954 } catch (RemoteException e) { 3955 throw e.rethrowFromSystemServer(); 3956 } 3957 } 3958 3959 /** 3960 * Gets the userId of the current foreground user. Requires system permissions. 3961 * @hide 3962 */ 3963 @SystemApi 3964 public static int getCurrentUser() { 3965 UserInfo ui; 3966 try { 3967 ui = getService().getCurrentUser(); 3968 return ui != null ? ui.id : 0; 3969 } catch (RemoteException e) { 3970 throw e.rethrowFromSystemServer(); 3971 } 3972 } 3973 3974 /** 3975 * @param userid the user's id. Zero indicates the default user. 3976 * @hide 3977 */ 3978 public boolean switchUser(int userid) { 3979 try { 3980 return getService().switchUser(userid); 3981 } catch (RemoteException e) { 3982 throw e.rethrowFromSystemServer(); 3983 } 3984 } 3985 3986 /** 3987 * Logs out current current foreground user by switching to the system user and stopping the 3988 * user being switched from. 3989 * @hide 3990 */ 3991 public static void logoutCurrentUser() { 3992 int currentUser = ActivityManager.getCurrentUser(); 3993 if (currentUser != UserHandle.USER_SYSTEM) { 3994 try { 3995 getService().switchUser(UserHandle.USER_SYSTEM); 3996 getService().stopUser(currentUser, /* force= */ false, null); 3997 } catch (RemoteException e) { 3998 e.rethrowFromSystemServer(); 3999 } 4000 } 4001 } 4002 4003 /** {@hide} */ 4004 public static final int FLAG_OR_STOPPED = 1 << 0; 4005 /** {@hide} */ 4006 public static final int FLAG_AND_LOCKED = 1 << 1; 4007 /** {@hide} */ 4008 public static final int FLAG_AND_UNLOCKED = 1 << 2; 4009 /** {@hide} */ 4010 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 4011 4012 /** 4013 * Return whether the given user is actively running. This means that 4014 * the user is in the "started" state, not "stopped" -- it is currently 4015 * allowed to run code through scheduled alarms, receiving broadcasts, 4016 * etc. A started user may be either the current foreground user or a 4017 * background user; the result here does not distinguish between the two. 4018 * @param userId the user's id. Zero indicates the default user. 4019 * @hide 4020 */ 4021 public boolean isUserRunning(int userId) { 4022 try { 4023 return getService().isUserRunning(userId, 0); 4024 } catch (RemoteException e) { 4025 throw e.rethrowFromSystemServer(); 4026 } 4027 } 4028 4029 /** {@hide} */ 4030 public boolean isVrModePackageEnabled(ComponentName component) { 4031 try { 4032 return getService().isVrModePackageEnabled(component); 4033 } catch (RemoteException e) { 4034 throw e.rethrowFromSystemServer(); 4035 } 4036 } 4037 4038 /** 4039 * Perform a system dump of various state associated with the given application 4040 * package name. This call blocks while the dump is being performed, so should 4041 * not be done on a UI thread. The data will be written to the given file 4042 * descriptor as text. 4043 * @param fd The file descriptor that the dump should be written to. The file 4044 * descriptor is <em>not</em> closed by this function; the caller continues to 4045 * own it. 4046 * @param packageName The name of the package that is to be dumped. 4047 */ 4048 @RequiresPermission(Manifest.permission.DUMP) 4049 public void dumpPackageState(FileDescriptor fd, String packageName) { 4050 dumpPackageStateStatic(fd, packageName); 4051 } 4052 4053 /** 4054 * @hide 4055 */ 4056 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4057 FileOutputStream fout = new FileOutputStream(fd); 4058 PrintWriter pw = new FastPrintWriter(fout); 4059 dumpService(pw, fd, "package", new String[] { packageName }); 4060 pw.println(); 4061 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4062 "-a", "package", packageName }); 4063 pw.println(); 4064 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4065 pw.println(); 4066 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4067 pw.println(); 4068 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4069 pw.println(); 4070 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4071 pw.flush(); 4072 } 4073 4074 /** 4075 * @hide 4076 */ 4077 public static boolean isSystemReady() { 4078 if (!sSystemReady) { 4079 if (ActivityThread.isSystem()) { 4080 sSystemReady = 4081 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4082 } else { 4083 // Since this is being called from outside system server, system should be 4084 // ready by now. 4085 sSystemReady = true; 4086 } 4087 } 4088 return sSystemReady; 4089 } 4090 4091 /** 4092 * @hide 4093 */ 4094 public static void broadcastStickyIntent(Intent intent, int userId) { 4095 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4096 } 4097 4098 /** 4099 * Convenience for sending a sticky broadcast. For internal use only. 4100 * 4101 * @hide 4102 */ 4103 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4104 try { 4105 getService().broadcastIntent( 4106 null, intent, null, null, Activity.RESULT_OK, null, null, 4107 null /*permission*/, appOp, null, false, true, userId); 4108 } catch (RemoteException ex) { 4109 } 4110 } 4111 4112 /** 4113 * @hide 4114 */ 4115 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4116 String tag) { 4117 try { 4118 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4119 sourceUid, sourcePkg, tag); 4120 } catch (RemoteException ex) { 4121 } 4122 } 4123 4124 /** 4125 * @hide 4126 */ 4127 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4128 try { 4129 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4130 } catch (RemoteException ex) { 4131 } 4132 } 4133 4134 /** 4135 * @hide 4136 */ 4137 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4138 try { 4139 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4140 } catch (RemoteException ex) { 4141 } 4142 } 4143 4144 /** 4145 * @hide 4146 */ 4147 public static IActivityManager getService() { 4148 return IActivityManagerSingleton.get(); 4149 } 4150 4151 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4152 new Singleton<IActivityManager>() { 4153 @Override 4154 protected IActivityManager create() { 4155 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4156 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4157 return am; 4158 } 4159 }; 4160 4161 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4162 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4163 IBinder service = ServiceManager.checkService(name); 4164 if (service == null) { 4165 pw.println(" (Service not found)"); 4166 return; 4167 } 4168 TransferPipe tp = null; 4169 try { 4170 pw.flush(); 4171 tp = new TransferPipe(); 4172 tp.setBufferPrefix(" "); 4173 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4174 tp.go(fd, 10000); 4175 } catch (Throwable e) { 4176 if (tp != null) { 4177 tp.kill(); 4178 } 4179 pw.println("Failure dumping service:"); 4180 e.printStackTrace(pw); 4181 } 4182 } 4183 4184 /** 4185 * Request that the system start watching for the calling process to exceed a pss 4186 * size as given here. Once called, the system will look for any occasions where it 4187 * sees the associated process with a larger pss size and, when this happens, automatically 4188 * pull a heap dump from it and allow the user to share the data. Note that this request 4189 * continues running even if the process is killed and restarted. To remove the watch, 4190 * use {@link #clearWatchHeapLimit()}. 4191 * 4192 * <p>This API only work if the calling process has been marked as 4193 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4194 * (userdebug or eng) build.</p> 4195 * 4196 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4197 * handle heap limit reports themselves.</p> 4198 * 4199 * @param pssSize The size in bytes to set the limit at. 4200 */ 4201 public void setWatchHeapLimit(long pssSize) { 4202 try { 4203 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4204 mContext.getPackageName()); 4205 } catch (RemoteException e) { 4206 throw e.rethrowFromSystemServer(); 4207 } 4208 } 4209 4210 /** 4211 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4212 * If your package has an activity handling this action, it will be launched with the 4213 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4214 * match the activty must support this action and a MIME type of "*/*". 4215 */ 4216 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4217 4218 /** 4219 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4220 */ 4221 public void clearWatchHeapLimit() { 4222 try { 4223 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4224 } catch (RemoteException e) { 4225 throw e.rethrowFromSystemServer(); 4226 } 4227 } 4228 4229 /** 4230 * @hide 4231 */ 4232 public void startLockTaskMode(int taskId) { 4233 try { 4234 getService().startLockTaskModeById(taskId); 4235 } catch (RemoteException e) { 4236 throw e.rethrowFromSystemServer(); 4237 } 4238 } 4239 4240 /** 4241 * @hide 4242 */ 4243 public void stopLockTaskMode() { 4244 try { 4245 getService().stopLockTaskMode(); 4246 } catch (RemoteException e) { 4247 throw e.rethrowFromSystemServer(); 4248 } 4249 } 4250 4251 /** 4252 * Return whether currently in lock task mode. When in this mode 4253 * no new tasks can be created or switched to. 4254 * 4255 * @see Activity#startLockTask() 4256 * 4257 * @deprecated Use {@link #getLockTaskModeState} instead. 4258 */ 4259 @Deprecated 4260 public boolean isInLockTaskMode() { 4261 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4262 } 4263 4264 /** 4265 * Return the current state of task locking. The three possible outcomes 4266 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4267 * and {@link #LOCK_TASK_MODE_PINNED}. 4268 * 4269 * @see Activity#startLockTask() 4270 */ 4271 public int getLockTaskModeState() { 4272 try { 4273 return getService().getLockTaskModeState(); 4274 } catch (RemoteException e) { 4275 throw e.rethrowFromSystemServer(); 4276 } 4277 } 4278 4279 /** 4280 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4281 * thread can be a VR thread in a process at a time, and that thread may be subject to 4282 * restrictions on the amount of time it can run. 4283 * 4284 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4285 * method will return to normal operation, and calling this method will do nothing while 4286 * persistent VR mode is enabled. 4287 * 4288 * To reset the VR thread for an application, a tid of 0 can be passed. 4289 * 4290 * @see android.os.Process#myTid() 4291 * @param tid tid of the VR thread 4292 */ 4293 public static void setVrThread(int tid) { 4294 try { 4295 getService().setVrThread(tid); 4296 } catch (RemoteException e) { 4297 // pass 4298 } 4299 } 4300 4301 /** 4302 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4303 * beyond a single process. Only one thread can be a 4304 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4305 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4306 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4307 * persistent VR thread loses its new scheduling priority; this method must be called again to 4308 * set the persistent thread. 4309 * 4310 * To reset the persistent VR thread, a tid of 0 can be passed. 4311 * 4312 * @see android.os.Process#myTid() 4313 * @param tid tid of the VR thread 4314 * @hide 4315 */ 4316 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4317 public static void setPersistentVrThread(int tid) { 4318 try { 4319 getService().setPersistentVrThread(tid); 4320 } catch (RemoteException e) { 4321 // pass 4322 } 4323 } 4324 4325 /** 4326 * The AppTask allows you to manage your own application's tasks. 4327 * See {@link android.app.ActivityManager#getAppTasks()} 4328 */ 4329 public static class AppTask { 4330 private IAppTask mAppTaskImpl; 4331 4332 /** @hide */ 4333 public AppTask(IAppTask task) { 4334 mAppTaskImpl = task; 4335 } 4336 4337 /** 4338 * Finishes all activities in this task and removes it from the recent tasks list. 4339 */ 4340 public void finishAndRemoveTask() { 4341 try { 4342 mAppTaskImpl.finishAndRemoveTask(); 4343 } catch (RemoteException e) { 4344 throw e.rethrowFromSystemServer(); 4345 } 4346 } 4347 4348 /** 4349 * Get the RecentTaskInfo associated with this task. 4350 * 4351 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4352 */ 4353 public RecentTaskInfo getTaskInfo() { 4354 try { 4355 return mAppTaskImpl.getTaskInfo(); 4356 } catch (RemoteException e) { 4357 throw e.rethrowFromSystemServer(); 4358 } 4359 } 4360 4361 /** 4362 * Bring this task to the foreground. If it contains activities, they will be 4363 * brought to the foreground with it and their instances re-created if needed. 4364 * If it doesn't contain activities, the root activity of the task will be 4365 * re-launched. 4366 */ 4367 public void moveToFront() { 4368 try { 4369 mAppTaskImpl.moveToFront(); 4370 } catch (RemoteException e) { 4371 throw e.rethrowFromSystemServer(); 4372 } 4373 } 4374 4375 /** 4376 * Start an activity in this task. Brings the task to the foreground. If this task 4377 * is not currently active (that is, its id < 0), then a new activity for the given 4378 * Intent will be launched as the root of the task and the task brought to the 4379 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4380 * an activity to launch in a new task, then a new activity for the given Intent will 4381 * be launched on top of the task and the task brought to the foreground. If this 4382 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4383 * or would otherwise be launched in to a new task, then the activity not launched but 4384 * this task be brought to the foreground and a new intent delivered to the top 4385 * activity if appropriate. 4386 * 4387 * <p>In other words, you generally want to use an Intent here that does not specify 4388 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4389 * and let the system do the right thing.</p> 4390 * 4391 * @param intent The Intent describing the new activity to be launched on the task. 4392 * @param options Optional launch options. 4393 * 4394 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4395 */ 4396 public void startActivity(Context context, Intent intent, Bundle options) { 4397 ActivityThread thread = ActivityThread.currentActivityThread(); 4398 thread.getInstrumentation().execStartActivityFromAppTask(context, 4399 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4400 } 4401 4402 /** 4403 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4404 * Intent of this AppTask. 4405 * 4406 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4407 * be set; otherwise, it will be cleared. 4408 */ 4409 public void setExcludeFromRecents(boolean exclude) { 4410 try { 4411 mAppTaskImpl.setExcludeFromRecents(exclude); 4412 } catch (RemoteException e) { 4413 throw e.rethrowFromSystemServer(); 4414 } 4415 } 4416 } 4417} 4418