ActivityManager.java revision d7e405851f23805fb484f861b5a2ba2de87a31d5
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 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 857 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 858 stackId == ASSISTANT_STACK_ID; 859 } 860 861 /** 862 * Returns true if this stack may be scaled without resizing, and windows within may need 863 * to be configured as such. 864 */ 865 public static boolean windowsAreScaleable(int stackId) { 866 return stackId == PINNED_STACK_ID; 867 } 868 869 /** 870 * Returns true if windows in this stack should be given move animations by default. 871 */ 872 public static boolean hasMovementAnimations(int stackId) { 873 return stackId != PINNED_STACK_ID; 874 } 875 876 /** Returns true if the input stack and its content can affect the device orientation. */ 877 public static boolean canSpecifyOrientation(int stackId) { 878 return stackId == HOME_STACK_ID 879 || stackId == RECENTS_STACK_ID 880 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 881 || stackId == ASSISTANT_STACK_ID 882 || isDynamicStack(stackId); 883 } 884 } 885 886 /** 887 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 888 * specifies the position of the created docked stack at the top half of the screen if 889 * in portrait mode or at the left half of the screen if in landscape mode. 890 * @hide 891 */ 892 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 893 894 /** 895 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 896 * specifies the position of the created docked stack at the bottom half of the screen if 897 * in portrait mode or at the right half of the screen if in landscape mode. 898 * @hide 899 */ 900 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 901 902 /** 903 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 904 * that the resize doesn't need to preserve the window, and can be skipped if bounds 905 * is unchanged. This mode is used by window manager in most cases. 906 * @hide 907 */ 908 public static final int RESIZE_MODE_SYSTEM = 0; 909 910 /** 911 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 912 * that the resize should preserve the window if possible. 913 * @hide 914 */ 915 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 916 917 /** 918 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 919 * that the resize should be performed even if the bounds appears unchanged. 920 * @hide 921 */ 922 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 923 924 /** 925 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 926 * manager during a screen rotation. 927 * @hide 928 */ 929 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 930 931 /** 932 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 933 * resize is due to a drag action. 934 * @hide 935 */ 936 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 937 938 /** 939 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 940 * that the resize should preserve the window if possible, and should not be skipped 941 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 942 * is ending. 943 * @hide 944 */ 945 public static final int RESIZE_MODE_USER_FORCED = 946 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 947 948 /** @hide */ 949 public int getFrontActivityScreenCompatMode() { 950 try { 951 return getService().getFrontActivityScreenCompatMode(); 952 } catch (RemoteException e) { 953 throw e.rethrowFromSystemServer(); 954 } 955 } 956 957 /** @hide */ 958 public void setFrontActivityScreenCompatMode(int mode) { 959 try { 960 getService().setFrontActivityScreenCompatMode(mode); 961 } catch (RemoteException e) { 962 throw e.rethrowFromSystemServer(); 963 } 964 } 965 966 /** @hide */ 967 public int getPackageScreenCompatMode(String packageName) { 968 try { 969 return getService().getPackageScreenCompatMode(packageName); 970 } catch (RemoteException e) { 971 throw e.rethrowFromSystemServer(); 972 } 973 } 974 975 /** @hide */ 976 public void setPackageScreenCompatMode(String packageName, int mode) { 977 try { 978 getService().setPackageScreenCompatMode(packageName, mode); 979 } catch (RemoteException e) { 980 throw e.rethrowFromSystemServer(); 981 } 982 } 983 984 /** @hide */ 985 public boolean getPackageAskScreenCompat(String packageName) { 986 try { 987 return getService().getPackageAskScreenCompat(packageName); 988 } catch (RemoteException e) { 989 throw e.rethrowFromSystemServer(); 990 } 991 } 992 993 /** @hide */ 994 public void setPackageAskScreenCompat(String packageName, boolean ask) { 995 try { 996 getService().setPackageAskScreenCompat(packageName, ask); 997 } catch (RemoteException e) { 998 throw e.rethrowFromSystemServer(); 999 } 1000 } 1001 1002 /** 1003 * Return the approximate per-application memory class of the current 1004 * device. This gives you an idea of how hard a memory limit you should 1005 * impose on your application to let the overall system work best. The 1006 * returned value is in megabytes; the baseline Android memory class is 1007 * 16 (which happens to be the Java heap limit of those devices); some 1008 * device with more memory may return 24 or even higher numbers. 1009 */ 1010 public int getMemoryClass() { 1011 return staticGetMemoryClass(); 1012 } 1013 1014 /** @hide */ 1015 static public int staticGetMemoryClass() { 1016 // Really brain dead right now -- just take this from the configured 1017 // vm heap size, and assume it is in megabytes and thus ends with "m". 1018 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1019 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1020 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1021 } 1022 return staticGetLargeMemoryClass(); 1023 } 1024 1025 /** 1026 * Return the approximate per-application memory class of the current 1027 * device when an application is running with a large heap. This is the 1028 * space available for memory-intensive applications; most applications 1029 * should not need this amount of memory, and should instead stay with the 1030 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1031 * This may be the same size as {@link #getMemoryClass()} on memory 1032 * constrained devices, or it may be significantly larger on devices with 1033 * a large amount of available RAM. 1034 * 1035 * <p>The is the size of the application's Dalvik heap if it has 1036 * specified <code>android:largeHeap="true"</code> in its manifest. 1037 */ 1038 public int getLargeMemoryClass() { 1039 return staticGetLargeMemoryClass(); 1040 } 1041 1042 /** @hide */ 1043 static public int staticGetLargeMemoryClass() { 1044 // Really brain dead right now -- just take this from the configured 1045 // vm heap size, and assume it is in megabytes and thus ends with "m". 1046 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1047 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1048 } 1049 1050 /** 1051 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1052 * is ultimately up to the device configuration, but currently it generally means 1053 * something in the class of a 512MB device with about a 800x480 or less screen. 1054 * This is mostly intended to be used by apps to determine whether they should turn 1055 * off certain features that require more RAM. 1056 */ 1057 public boolean isLowRamDevice() { 1058 return isLowRamDeviceStatic(); 1059 } 1060 1061 /** @hide */ 1062 public static boolean isLowRamDeviceStatic() { 1063 return RoSystemProperties.CONFIG_LOW_RAM; 1064 } 1065 1066 /** 1067 * Used by persistent processes to determine if they are running on a 1068 * higher-end device so should be okay using hardware drawing acceleration 1069 * (which tends to consume a lot more RAM). 1070 * @hide 1071 */ 1072 static public boolean isHighEndGfx() { 1073 return !isLowRamDeviceStatic() && 1074 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1075 } 1076 1077 /** 1078 * Return the maximum number of recents entries that we will maintain and show. 1079 * @hide 1080 */ 1081 static public int getMaxRecentTasksStatic() { 1082 if (gMaxRecentTasks < 0) { 1083 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1084 } 1085 return gMaxRecentTasks; 1086 } 1087 1088 /** 1089 * Return the default limit on the number of recents that an app can make. 1090 * @hide 1091 */ 1092 static public int getDefaultAppRecentsLimitStatic() { 1093 return getMaxRecentTasksStatic() / 6; 1094 } 1095 1096 /** 1097 * Return the maximum limit on the number of recents that an app can make. 1098 * @hide 1099 */ 1100 static public int getMaxAppRecentsLimitStatic() { 1101 return getMaxRecentTasksStatic() / 2; 1102 } 1103 1104 /** 1105 * Returns true if the system supports at least one form of multi-window. 1106 * E.g. freeform, split-screen, picture-in-picture. 1107 * @hide 1108 */ 1109 static public boolean supportsMultiWindow() { 1110 return !isLowRamDeviceStatic() 1111 && Resources.getSystem().getBoolean( 1112 com.android.internal.R.bool.config_supportsMultiWindow); 1113 } 1114 1115 /** 1116 * Returns true if the system supports split screen multi-window. 1117 * @hide 1118 */ 1119 static public boolean supportsSplitScreenMultiWindow() { 1120 return supportsMultiWindow() 1121 && Resources.getSystem().getBoolean( 1122 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1123 } 1124 1125 /** 1126 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1127 * the user interacts with the activity currently in picture-in-picture mode. 1128 */ 1129 public static int getMaxNumPictureInPictureActions() { 1130 return NUM_ALLOWED_PIP_ACTIONS; 1131 } 1132 1133 /** 1134 * Information you can set and retrieve about the current activity within the recent task list. 1135 */ 1136 public static class TaskDescription implements Parcelable { 1137 /** @hide */ 1138 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1139 private static final String ATTR_TASKDESCRIPTIONLABEL = 1140 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1141 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1142 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1143 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1144 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1145 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1146 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1147 1148 private String mLabel; 1149 private Bitmap mIcon; 1150 private String mIconFilename; 1151 private int mColorPrimary; 1152 private int mColorBackground; 1153 private int mStatusBarColor; 1154 private int mNavigationBarColor; 1155 1156 /** 1157 * Creates the TaskDescription to the specified values. 1158 * 1159 * @param label A label and description of the current state of this task. 1160 * @param icon An icon that represents the current state of this task. 1161 * @param colorPrimary A color to override the theme's primary color. This color must be 1162 * opaque. 1163 */ 1164 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1165 this(label, icon, null, colorPrimary, 0, 0, 0); 1166 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1167 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1168 } 1169 } 1170 1171 /** 1172 * Creates the TaskDescription to the specified values. 1173 * 1174 * @param label A label and description of the current state of this activity. 1175 * @param icon An icon that represents the current state of this activity. 1176 */ 1177 public TaskDescription(String label, Bitmap icon) { 1178 this(label, icon, null, 0, 0, 0, 0); 1179 } 1180 1181 /** 1182 * Creates the TaskDescription to the specified values. 1183 * 1184 * @param label A label and description of the current state of this activity. 1185 */ 1186 public TaskDescription(String label) { 1187 this(label, null, null, 0, 0, 0, 0); 1188 } 1189 1190 /** 1191 * Creates an empty TaskDescription. 1192 */ 1193 public TaskDescription() { 1194 this(null, null, null, 0, 0, 0, 0); 1195 } 1196 1197 /** @hide */ 1198 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1199 int colorBackground, int statusBarColor, int navigationBarColor) { 1200 mLabel = label; 1201 mIcon = icon; 1202 mIconFilename = iconFilename; 1203 mColorPrimary = colorPrimary; 1204 mColorBackground = colorBackground; 1205 mStatusBarColor = statusBarColor; 1206 mNavigationBarColor = navigationBarColor; 1207 } 1208 1209 /** 1210 * Creates a copy of another TaskDescription. 1211 */ 1212 public TaskDescription(TaskDescription td) { 1213 copyFrom(td); 1214 } 1215 1216 /** 1217 * Copies this the values from another TaskDescription. 1218 * @hide 1219 */ 1220 public void copyFrom(TaskDescription other) { 1221 mLabel = other.mLabel; 1222 mIcon = other.mIcon; 1223 mIconFilename = other.mIconFilename; 1224 mColorPrimary = other.mColorPrimary; 1225 mColorBackground = other.mColorBackground; 1226 mStatusBarColor = other.mStatusBarColor; 1227 mNavigationBarColor = other.mNavigationBarColor; 1228 } 1229 1230 private TaskDescription(Parcel source) { 1231 readFromParcel(source); 1232 } 1233 1234 /** 1235 * Sets the label for this task description. 1236 * @hide 1237 */ 1238 public void setLabel(String label) { 1239 mLabel = label; 1240 } 1241 1242 /** 1243 * Sets the primary color for this task description. 1244 * @hide 1245 */ 1246 public void setPrimaryColor(int primaryColor) { 1247 // Ensure that the given color is valid 1248 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1249 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1250 } 1251 mColorPrimary = primaryColor; 1252 } 1253 1254 /** 1255 * Sets the background color for this task description. 1256 * @hide 1257 */ 1258 public void setBackgroundColor(int backgroundColor) { 1259 // Ensure that the given color is valid 1260 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1261 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1262 } 1263 mColorBackground = backgroundColor; 1264 } 1265 1266 /** 1267 * @hide 1268 */ 1269 public void setStatusBarColor(int statusBarColor) { 1270 mStatusBarColor = statusBarColor; 1271 } 1272 1273 /** 1274 * @hide 1275 */ 1276 public void setNavigationBarColor(int navigationBarColor) { 1277 mNavigationBarColor = navigationBarColor; 1278 } 1279 1280 /** 1281 * Sets the icon for this task description. 1282 * @hide 1283 */ 1284 public void setIcon(Bitmap icon) { 1285 mIcon = icon; 1286 } 1287 1288 /** 1289 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1290 * bitmap. 1291 * @hide 1292 */ 1293 public void setIconFilename(String iconFilename) { 1294 mIconFilename = iconFilename; 1295 mIcon = null; 1296 } 1297 1298 /** 1299 * @return The label and description of the current state of this task. 1300 */ 1301 public String getLabel() { 1302 return mLabel; 1303 } 1304 1305 /** 1306 * @return The icon that represents the current state of this task. 1307 */ 1308 public Bitmap getIcon() { 1309 if (mIcon != null) { 1310 return mIcon; 1311 } 1312 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1313 } 1314 1315 /** @hide */ 1316 public String getIconFilename() { 1317 return mIconFilename; 1318 } 1319 1320 /** @hide */ 1321 public Bitmap getInMemoryIcon() { 1322 return mIcon; 1323 } 1324 1325 /** @hide */ 1326 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1327 if (iconFilename != null) { 1328 try { 1329 return getService().getTaskDescriptionIcon(iconFilename, 1330 userId); 1331 } catch (RemoteException e) { 1332 throw e.rethrowFromSystemServer(); 1333 } 1334 } 1335 return null; 1336 } 1337 1338 /** 1339 * @return The color override on the theme's primary color. 1340 */ 1341 public int getPrimaryColor() { 1342 return mColorPrimary; 1343 } 1344 1345 /** 1346 * @return The background color. 1347 * @hide 1348 */ 1349 public int getBackgroundColor() { 1350 return mColorBackground; 1351 } 1352 1353 /** 1354 * @hide 1355 */ 1356 public int getStatusBarColor() { 1357 return mStatusBarColor; 1358 } 1359 1360 /** 1361 * @hide 1362 */ 1363 public int getNavigationBarColor() { 1364 return mNavigationBarColor; 1365 } 1366 1367 /** @hide */ 1368 public void saveToXml(XmlSerializer out) throws IOException { 1369 if (mLabel != null) { 1370 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1371 } 1372 if (mColorPrimary != 0) { 1373 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1374 Integer.toHexString(mColorPrimary)); 1375 } 1376 if (mColorBackground != 0) { 1377 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1378 Integer.toHexString(mColorBackground)); 1379 } 1380 if (mIconFilename != null) { 1381 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1382 } 1383 } 1384 1385 /** @hide */ 1386 public void restoreFromXml(String attrName, String attrValue) { 1387 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1388 setLabel(attrValue); 1389 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1390 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1391 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1392 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1393 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1394 setIconFilename(attrValue); 1395 } 1396 } 1397 1398 @Override 1399 public int describeContents() { 1400 return 0; 1401 } 1402 1403 @Override 1404 public void writeToParcel(Parcel dest, int flags) { 1405 if (mLabel == null) { 1406 dest.writeInt(0); 1407 } else { 1408 dest.writeInt(1); 1409 dest.writeString(mLabel); 1410 } 1411 if (mIcon == null) { 1412 dest.writeInt(0); 1413 } else { 1414 dest.writeInt(1); 1415 mIcon.writeToParcel(dest, 0); 1416 } 1417 dest.writeInt(mColorPrimary); 1418 dest.writeInt(mColorBackground); 1419 dest.writeInt(mStatusBarColor); 1420 dest.writeInt(mNavigationBarColor); 1421 if (mIconFilename == null) { 1422 dest.writeInt(0); 1423 } else { 1424 dest.writeInt(1); 1425 dest.writeString(mIconFilename); 1426 } 1427 } 1428 1429 public void readFromParcel(Parcel source) { 1430 mLabel = source.readInt() > 0 ? source.readString() : null; 1431 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1432 mColorPrimary = source.readInt(); 1433 mColorBackground = source.readInt(); 1434 mStatusBarColor = source.readInt(); 1435 mNavigationBarColor = source.readInt(); 1436 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1437 } 1438 1439 public static final Creator<TaskDescription> CREATOR 1440 = new Creator<TaskDescription>() { 1441 public TaskDescription createFromParcel(Parcel source) { 1442 return new TaskDescription(source); 1443 } 1444 public TaskDescription[] newArray(int size) { 1445 return new TaskDescription[size]; 1446 } 1447 }; 1448 1449 @Override 1450 public String toString() { 1451 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1452 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1453 " colorBackground: " + mColorBackground + 1454 " statusBarColor: " + mColorBackground + 1455 " navigationBarColor: " + mNavigationBarColor; 1456 } 1457 } 1458 1459 /** 1460 * Information you can retrieve about tasks that the user has most recently 1461 * started or visited. 1462 */ 1463 public static class RecentTaskInfo implements Parcelable { 1464 /** 1465 * If this task is currently running, this is the identifier for it. 1466 * If it is not running, this will be -1. 1467 */ 1468 public int id; 1469 1470 /** 1471 * The true identifier of this task, valid even if it is not running. 1472 */ 1473 public int persistentId; 1474 1475 /** 1476 * The original Intent used to launch the task. You can use this 1477 * Intent to re-launch the task (if it is no longer running) or bring 1478 * the current task to the front. 1479 */ 1480 public Intent baseIntent; 1481 1482 /** 1483 * If this task was started from an alias, this is the actual 1484 * activity component that was initially started; the component of 1485 * the baseIntent in this case is the name of the actual activity 1486 * implementation that the alias referred to. Otherwise, this is null. 1487 */ 1488 public ComponentName origActivity; 1489 1490 /** 1491 * The actual activity component that started the task. 1492 * @hide 1493 */ 1494 @Nullable 1495 public ComponentName realActivity; 1496 1497 /** 1498 * Description of the task's last state. 1499 */ 1500 public CharSequence description; 1501 1502 /** 1503 * The id of the ActivityStack this Task was on most recently. 1504 * @hide 1505 */ 1506 public int stackId; 1507 1508 /** 1509 * The id of the user the task was running as. 1510 * @hide 1511 */ 1512 public int userId; 1513 1514 /** 1515 * The first time this task was active. 1516 * @hide 1517 */ 1518 public long firstActiveTime; 1519 1520 /** 1521 * The last time this task was active. 1522 * @hide 1523 */ 1524 public long lastActiveTime; 1525 1526 /** 1527 * The recent activity values for the highest activity in the stack to have set the values. 1528 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1529 */ 1530 public TaskDescription taskDescription; 1531 1532 /** 1533 * Task affiliation for grouping with other tasks. 1534 */ 1535 public int affiliatedTaskId; 1536 1537 /** 1538 * Task affiliation color of the source task with the affiliated task id. 1539 * 1540 * @hide 1541 */ 1542 public int affiliatedTaskColor; 1543 1544 /** 1545 * The component launched as the first activity in the task. 1546 * This can be considered the "application" of this task. 1547 */ 1548 public ComponentName baseActivity; 1549 1550 /** 1551 * The activity component at the top of the history stack of the task. 1552 * This is what the user is currently doing. 1553 */ 1554 public ComponentName topActivity; 1555 1556 /** 1557 * Number of activities in this task. 1558 */ 1559 public int numActivities; 1560 1561 /** 1562 * The bounds of the task. 1563 * @hide 1564 */ 1565 public Rect bounds; 1566 1567 /** 1568 * True if the task can go in the docked stack. 1569 * @hide 1570 */ 1571 public boolean supportsSplitScreenMultiWindow; 1572 1573 /** 1574 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1575 * @hide 1576 */ 1577 public int resizeMode; 1578 1579 public RecentTaskInfo() { 1580 } 1581 1582 @Override 1583 public int describeContents() { 1584 return 0; 1585 } 1586 1587 @Override 1588 public void writeToParcel(Parcel dest, int flags) { 1589 dest.writeInt(id); 1590 dest.writeInt(persistentId); 1591 if (baseIntent != null) { 1592 dest.writeInt(1); 1593 baseIntent.writeToParcel(dest, 0); 1594 } else { 1595 dest.writeInt(0); 1596 } 1597 ComponentName.writeToParcel(origActivity, dest); 1598 ComponentName.writeToParcel(realActivity, dest); 1599 TextUtils.writeToParcel(description, dest, 1600 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1601 if (taskDescription != null) { 1602 dest.writeInt(1); 1603 taskDescription.writeToParcel(dest, 0); 1604 } else { 1605 dest.writeInt(0); 1606 } 1607 dest.writeInt(stackId); 1608 dest.writeInt(userId); 1609 dest.writeLong(firstActiveTime); 1610 dest.writeLong(lastActiveTime); 1611 dest.writeInt(affiliatedTaskId); 1612 dest.writeInt(affiliatedTaskColor); 1613 ComponentName.writeToParcel(baseActivity, dest); 1614 ComponentName.writeToParcel(topActivity, dest); 1615 dest.writeInt(numActivities); 1616 if (bounds != null) { 1617 dest.writeInt(1); 1618 bounds.writeToParcel(dest, 0); 1619 } else { 1620 dest.writeInt(0); 1621 } 1622 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1623 dest.writeInt(resizeMode); 1624 } 1625 1626 public void readFromParcel(Parcel source) { 1627 id = source.readInt(); 1628 persistentId = source.readInt(); 1629 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1630 origActivity = ComponentName.readFromParcel(source); 1631 realActivity = ComponentName.readFromParcel(source); 1632 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1633 taskDescription = source.readInt() > 0 ? 1634 TaskDescription.CREATOR.createFromParcel(source) : null; 1635 stackId = source.readInt(); 1636 userId = source.readInt(); 1637 firstActiveTime = source.readLong(); 1638 lastActiveTime = source.readLong(); 1639 affiliatedTaskId = source.readInt(); 1640 affiliatedTaskColor = source.readInt(); 1641 baseActivity = ComponentName.readFromParcel(source); 1642 topActivity = ComponentName.readFromParcel(source); 1643 numActivities = source.readInt(); 1644 bounds = source.readInt() > 0 ? 1645 Rect.CREATOR.createFromParcel(source) : null; 1646 supportsSplitScreenMultiWindow = source.readInt() == 1; 1647 resizeMode = source.readInt(); 1648 } 1649 1650 public static final Creator<RecentTaskInfo> CREATOR 1651 = new Creator<RecentTaskInfo>() { 1652 public RecentTaskInfo createFromParcel(Parcel source) { 1653 return new RecentTaskInfo(source); 1654 } 1655 public RecentTaskInfo[] newArray(int size) { 1656 return new RecentTaskInfo[size]; 1657 } 1658 }; 1659 1660 private RecentTaskInfo(Parcel source) { 1661 readFromParcel(source); 1662 } 1663 } 1664 1665 /** 1666 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1667 * that have set their 1668 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1669 */ 1670 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1671 1672 /** 1673 * Provides a list that does not contain any 1674 * recent tasks that currently are not available to the user. 1675 */ 1676 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1677 1678 /** 1679 * Provides a list that contains recent tasks for all 1680 * profiles of a user. 1681 * @hide 1682 */ 1683 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1684 1685 /** 1686 * Ignores all tasks that are on the home stack. 1687 * @hide 1688 */ 1689 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1690 1691 /** 1692 * Ignores the top task in the docked stack. 1693 * @hide 1694 */ 1695 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1696 1697 /** 1698 * Ignores all tasks that are on the pinned stack. 1699 * @hide 1700 */ 1701 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1702 1703 /** 1704 * <p></p>Return a list of the tasks that the user has recently launched, with 1705 * the most recent being first and older ones after in order. 1706 * 1707 * <p><b>Note: this method is only intended for debugging and presenting 1708 * task management user interfaces</b>. This should never be used for 1709 * core logic in an application, such as deciding between different 1710 * behaviors based on the information found here. Such uses are 1711 * <em>not</em> supported, and will likely break in the future. For 1712 * example, if multiple applications can be actively running at the 1713 * same time, assumptions made about the meaning of the data here for 1714 * purposes of control flow will be incorrect.</p> 1715 * 1716 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1717 * no longer available to third party applications: the introduction of 1718 * document-centric recents means 1719 * it can leak personal information to the caller. For backwards compatibility, 1720 * it will still return a small subset of its data: at least the caller's 1721 * own tasks (though see {@link #getAppTasks()} for the correct supported 1722 * way to retrieve that information), and possibly some other tasks 1723 * such as home that are known to not be sensitive. 1724 * 1725 * @param maxNum The maximum number of entries to return in the list. The 1726 * actual number returned may be smaller, depending on how many tasks the 1727 * user has started and the maximum number the system can remember. 1728 * @param flags Information about what to return. May be any combination 1729 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1730 * 1731 * @return Returns a list of RecentTaskInfo records describing each of 1732 * the recent tasks. 1733 */ 1734 @Deprecated 1735 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1736 throws SecurityException { 1737 try { 1738 return getService().getRecentTasks(maxNum, 1739 flags, UserHandle.myUserId()).getList(); 1740 } catch (RemoteException e) { 1741 throw e.rethrowFromSystemServer(); 1742 } 1743 } 1744 1745 /** 1746 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1747 * specific user. It requires holding 1748 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1749 * @param maxNum The maximum number of entries to return in the list. The 1750 * actual number returned may be smaller, depending on how many tasks the 1751 * user has started and the maximum number the system can remember. 1752 * @param flags Information about what to return. May be any combination 1753 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1754 * 1755 * @return Returns a list of RecentTaskInfo records describing each of 1756 * the recent tasks. Most recently activated tasks go first. 1757 * 1758 * @hide 1759 */ 1760 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1761 throws SecurityException { 1762 try { 1763 return getService().getRecentTasks(maxNum, 1764 flags, userId).getList(); 1765 } catch (RemoteException e) { 1766 throw e.rethrowFromSystemServer(); 1767 } 1768 } 1769 1770 /** 1771 * Information you can retrieve about a particular task that is currently 1772 * "running" in the system. Note that a running task does not mean the 1773 * given task actually has a process it is actively running in; it simply 1774 * means that the user has gone to it and never closed it, but currently 1775 * the system may have killed its process and is only holding on to its 1776 * last state in order to restart it when the user returns. 1777 */ 1778 public static class RunningTaskInfo implements Parcelable { 1779 /** 1780 * A unique identifier for this task. 1781 */ 1782 public int id; 1783 1784 /** 1785 * The stack that currently contains this task. 1786 * @hide 1787 */ 1788 public int stackId; 1789 1790 /** 1791 * The component launched as the first activity in the task. This can 1792 * be considered the "application" of this task. 1793 */ 1794 public ComponentName baseActivity; 1795 1796 /** 1797 * The activity component at the top of the history stack of the task. 1798 * This is what the user is currently doing. 1799 */ 1800 public ComponentName topActivity; 1801 1802 /** 1803 * Thumbnail representation of the task's current state. Currently 1804 * always null. 1805 */ 1806 public Bitmap thumbnail; 1807 1808 /** 1809 * Description of the task's current state. 1810 */ 1811 public CharSequence description; 1812 1813 /** 1814 * Number of activities in this task. 1815 */ 1816 public int numActivities; 1817 1818 /** 1819 * Number of activities that are currently running (not stopped 1820 * and persisted) in this task. 1821 */ 1822 public int numRunning; 1823 1824 /** 1825 * Last time task was run. For sorting. 1826 * @hide 1827 */ 1828 public long lastActiveTime; 1829 1830 /** 1831 * True if the task can go in the docked stack. 1832 * @hide 1833 */ 1834 public boolean supportsSplitScreenMultiWindow; 1835 1836 /** 1837 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1838 * @hide 1839 */ 1840 public int resizeMode; 1841 1842 public RunningTaskInfo() { 1843 } 1844 1845 public int describeContents() { 1846 return 0; 1847 } 1848 1849 public void writeToParcel(Parcel dest, int flags) { 1850 dest.writeInt(id); 1851 dest.writeInt(stackId); 1852 ComponentName.writeToParcel(baseActivity, dest); 1853 ComponentName.writeToParcel(topActivity, dest); 1854 if (thumbnail != null) { 1855 dest.writeInt(1); 1856 thumbnail.writeToParcel(dest, 0); 1857 } else { 1858 dest.writeInt(0); 1859 } 1860 TextUtils.writeToParcel(description, dest, 1861 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1862 dest.writeInt(numActivities); 1863 dest.writeInt(numRunning); 1864 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1865 dest.writeInt(resizeMode); 1866 } 1867 1868 public void readFromParcel(Parcel source) { 1869 id = source.readInt(); 1870 stackId = source.readInt(); 1871 baseActivity = ComponentName.readFromParcel(source); 1872 topActivity = ComponentName.readFromParcel(source); 1873 if (source.readInt() != 0) { 1874 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1875 } else { 1876 thumbnail = null; 1877 } 1878 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1879 numActivities = source.readInt(); 1880 numRunning = source.readInt(); 1881 supportsSplitScreenMultiWindow = source.readInt() != 0; 1882 resizeMode = source.readInt(); 1883 } 1884 1885 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1886 public RunningTaskInfo createFromParcel(Parcel source) { 1887 return new RunningTaskInfo(source); 1888 } 1889 public RunningTaskInfo[] newArray(int size) { 1890 return new RunningTaskInfo[size]; 1891 } 1892 }; 1893 1894 private RunningTaskInfo(Parcel source) { 1895 readFromParcel(source); 1896 } 1897 } 1898 1899 /** 1900 * Get the list of tasks associated with the calling application. 1901 * 1902 * @return The list of tasks associated with the application making this call. 1903 * @throws SecurityException 1904 */ 1905 public List<ActivityManager.AppTask> getAppTasks() { 1906 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1907 List<IBinder> appTasks; 1908 try { 1909 appTasks = getService().getAppTasks(mContext.getPackageName()); 1910 } catch (RemoteException e) { 1911 throw e.rethrowFromSystemServer(); 1912 } 1913 int numAppTasks = appTasks.size(); 1914 for (int i = 0; i < numAppTasks; i++) { 1915 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1916 } 1917 return tasks; 1918 } 1919 1920 /** 1921 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1922 * with {@link #addAppTask}. 1923 */ 1924 public Size getAppTaskThumbnailSize() { 1925 synchronized (this) { 1926 ensureAppTaskThumbnailSizeLocked(); 1927 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1928 } 1929 } 1930 1931 private void ensureAppTaskThumbnailSizeLocked() { 1932 if (mAppTaskThumbnailSize == null) { 1933 try { 1934 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1935 } catch (RemoteException e) { 1936 throw e.rethrowFromSystemServer(); 1937 } 1938 } 1939 } 1940 1941 /** 1942 * Add a new {@link AppTask} for the calling application. This will create a new 1943 * recents entry that is added to the <b>end</b> of all existing recents. 1944 * 1945 * @param activity The activity that is adding the entry. This is used to help determine 1946 * the context that the new recents entry will be in. 1947 * @param intent The Intent that describes the recents entry. This is the same Intent that 1948 * you would have used to launch the activity for it. In generally you will want to set 1949 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1950 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1951 * entry will exist without an activity, so it doesn't make sense to not retain it when 1952 * its activity disappears. The given Intent here also must have an explicit ComponentName 1953 * set on it. 1954 * @param description Optional additional description information. 1955 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1956 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1957 * recreated in your process, probably in a way you don't like, before the recents entry 1958 * is added. 1959 * 1960 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1961 * most likely cause of failure is that there is no more room for more tasks for your app. 1962 */ 1963 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1964 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1965 Point size; 1966 synchronized (this) { 1967 ensureAppTaskThumbnailSizeLocked(); 1968 size = mAppTaskThumbnailSize; 1969 } 1970 final int tw = thumbnail.getWidth(); 1971 final int th = thumbnail.getHeight(); 1972 if (tw != size.x || th != size.y) { 1973 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1974 1975 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1976 float scale; 1977 float dx = 0, dy = 0; 1978 if (tw * size.x > size.y * th) { 1979 scale = (float) size.x / (float) th; 1980 dx = (size.y - tw * scale) * 0.5f; 1981 } else { 1982 scale = (float) size.y / (float) tw; 1983 dy = (size.x - th * scale) * 0.5f; 1984 } 1985 Matrix matrix = new Matrix(); 1986 matrix.setScale(scale, scale); 1987 matrix.postTranslate((int) (dx + 0.5f), 0); 1988 1989 Canvas canvas = new Canvas(bm); 1990 canvas.drawBitmap(thumbnail, matrix, null); 1991 canvas.setBitmap(null); 1992 1993 thumbnail = bm; 1994 } 1995 if (description == null) { 1996 description = new TaskDescription(); 1997 } 1998 try { 1999 return getService().addAppTask(activity.getActivityToken(), 2000 intent, description, thumbnail); 2001 } catch (RemoteException e) { 2002 throw e.rethrowFromSystemServer(); 2003 } 2004 } 2005 2006 /** 2007 * Return a list of the tasks that are currently running, with 2008 * the most recent being first and older ones after in order. Note that 2009 * "running" does not mean any of the task's code is currently loaded or 2010 * activity -- the task may have been frozen by the system, so that it 2011 * can be restarted in its previous state when next brought to the 2012 * foreground. 2013 * 2014 * <p><b>Note: this method is only intended for debugging and presenting 2015 * task management user interfaces</b>. This should never be used for 2016 * core logic in an application, such as deciding between different 2017 * behaviors based on the information found here. Such uses are 2018 * <em>not</em> supported, and will likely break in the future. For 2019 * example, if multiple applications can be actively running at the 2020 * same time, assumptions made about the meaning of the data here for 2021 * purposes of control flow will be incorrect.</p> 2022 * 2023 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2024 * is no longer available to third party 2025 * applications: the introduction of document-centric recents means 2026 * it can leak person information to the caller. For backwards compatibility, 2027 * it will still retu rn a small subset of its data: at least the caller's 2028 * own tasks, and possibly some other tasks 2029 * such as home that are known to not be sensitive. 2030 * 2031 * @param maxNum The maximum number of entries to return in the list. The 2032 * actual number returned may be smaller, depending on how many tasks the 2033 * user has started. 2034 * 2035 * @return Returns a list of RunningTaskInfo records describing each of 2036 * the running tasks. 2037 */ 2038 @Deprecated 2039 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2040 throws SecurityException { 2041 try { 2042 return getService().getTasks(maxNum, 0); 2043 } catch (RemoteException e) { 2044 throw e.rethrowFromSystemServer(); 2045 } 2046 } 2047 2048 /** 2049 * Completely remove the given task. 2050 * 2051 * @param taskId Identifier of the task to be removed. 2052 * @return Returns true if the given task was found and removed. 2053 * 2054 * @hide 2055 */ 2056 public boolean removeTask(int taskId) throws SecurityException { 2057 try { 2058 return getService().removeTask(taskId); 2059 } catch (RemoteException e) { 2060 throw e.rethrowFromSystemServer(); 2061 } 2062 } 2063 2064 /** 2065 * Metadata related to the {@link TaskThumbnail}. 2066 * 2067 * @hide 2068 */ 2069 public static class TaskThumbnailInfo implements Parcelable { 2070 /** @hide */ 2071 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2072 private static final String ATTR_TASK_WIDTH = 2073 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2074 private static final String ATTR_TASK_HEIGHT = 2075 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2076 private static final String ATTR_SCREEN_ORIENTATION = 2077 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2078 2079 public int taskWidth; 2080 public int taskHeight; 2081 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2082 2083 public TaskThumbnailInfo() { 2084 // Do nothing 2085 } 2086 2087 private TaskThumbnailInfo(Parcel source) { 2088 readFromParcel(source); 2089 } 2090 2091 /** 2092 * Resets this info state to the initial state. 2093 * @hide 2094 */ 2095 public void reset() { 2096 taskWidth = 0; 2097 taskHeight = 0; 2098 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2099 } 2100 2101 /** 2102 * Copies from another ThumbnailInfo. 2103 */ 2104 public void copyFrom(TaskThumbnailInfo o) { 2105 taskWidth = o.taskWidth; 2106 taskHeight = o.taskHeight; 2107 screenOrientation = o.screenOrientation; 2108 } 2109 2110 /** @hide */ 2111 public void saveToXml(XmlSerializer out) throws IOException { 2112 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2113 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2114 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2115 } 2116 2117 /** @hide */ 2118 public void restoreFromXml(String attrName, String attrValue) { 2119 if (ATTR_TASK_WIDTH.equals(attrName)) { 2120 taskWidth = Integer.parseInt(attrValue); 2121 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2122 taskHeight = Integer.parseInt(attrValue); 2123 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2124 screenOrientation = Integer.parseInt(attrValue); 2125 } 2126 } 2127 2128 public int describeContents() { 2129 return 0; 2130 } 2131 2132 public void writeToParcel(Parcel dest, int flags) { 2133 dest.writeInt(taskWidth); 2134 dest.writeInt(taskHeight); 2135 dest.writeInt(screenOrientation); 2136 } 2137 2138 public void readFromParcel(Parcel source) { 2139 taskWidth = source.readInt(); 2140 taskHeight = source.readInt(); 2141 screenOrientation = source.readInt(); 2142 } 2143 2144 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2145 public TaskThumbnailInfo createFromParcel(Parcel source) { 2146 return new TaskThumbnailInfo(source); 2147 } 2148 public TaskThumbnailInfo[] newArray(int size) { 2149 return new TaskThumbnailInfo[size]; 2150 } 2151 }; 2152 } 2153 2154 /** @hide */ 2155 public static class TaskThumbnail implements Parcelable { 2156 public Bitmap mainThumbnail; 2157 public ParcelFileDescriptor thumbnailFileDescriptor; 2158 public TaskThumbnailInfo thumbnailInfo; 2159 2160 public TaskThumbnail() { 2161 } 2162 2163 private TaskThumbnail(Parcel source) { 2164 readFromParcel(source); 2165 } 2166 2167 public int describeContents() { 2168 if (thumbnailFileDescriptor != null) { 2169 return thumbnailFileDescriptor.describeContents(); 2170 } 2171 return 0; 2172 } 2173 2174 public void writeToParcel(Parcel dest, int flags) { 2175 if (mainThumbnail != null) { 2176 dest.writeInt(1); 2177 mainThumbnail.writeToParcel(dest, flags); 2178 } else { 2179 dest.writeInt(0); 2180 } 2181 if (thumbnailFileDescriptor != null) { 2182 dest.writeInt(1); 2183 thumbnailFileDescriptor.writeToParcel(dest, flags); 2184 } else { 2185 dest.writeInt(0); 2186 } 2187 if (thumbnailInfo != null) { 2188 dest.writeInt(1); 2189 thumbnailInfo.writeToParcel(dest, flags); 2190 } else { 2191 dest.writeInt(0); 2192 } 2193 } 2194 2195 public void readFromParcel(Parcel source) { 2196 if (source.readInt() != 0) { 2197 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2198 } else { 2199 mainThumbnail = null; 2200 } 2201 if (source.readInt() != 0) { 2202 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2203 } else { 2204 thumbnailFileDescriptor = null; 2205 } 2206 if (source.readInt() != 0) { 2207 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2208 } else { 2209 thumbnailInfo = null; 2210 } 2211 } 2212 2213 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2214 public TaskThumbnail createFromParcel(Parcel source) { 2215 return new TaskThumbnail(source); 2216 } 2217 public TaskThumbnail[] newArray(int size) { 2218 return new TaskThumbnail[size]; 2219 } 2220 }; 2221 } 2222 2223 /** 2224 * Represents a task snapshot. 2225 * @hide 2226 */ 2227 public static class TaskSnapshot implements Parcelable { 2228 2229 private final GraphicBuffer mSnapshot; 2230 private final int mOrientation; 2231 private final Rect mContentInsets; 2232 private final boolean mReducedResolution; 2233 private final float mScale; 2234 2235 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2236 boolean reducedResolution, float scale) { 2237 mSnapshot = snapshot; 2238 mOrientation = orientation; 2239 mContentInsets = new Rect(contentInsets); 2240 mReducedResolution = reducedResolution; 2241 mScale = scale; 2242 } 2243 2244 private TaskSnapshot(Parcel source) { 2245 mSnapshot = source.readParcelable(null /* classLoader */); 2246 mOrientation = source.readInt(); 2247 mContentInsets = source.readParcelable(null /* classLoader */); 2248 mReducedResolution = source.readBoolean(); 2249 mScale = source.readFloat(); 2250 } 2251 2252 /** 2253 * @return The graphic buffer representing the screenshot. 2254 */ 2255 public GraphicBuffer getSnapshot() { 2256 return mSnapshot; 2257 } 2258 2259 /** 2260 * @return The screen orientation the screenshot was taken in. 2261 */ 2262 public int getOrientation() { 2263 return mOrientation; 2264 } 2265 2266 /** 2267 * @return The system/content insets on the snapshot. These can be clipped off in order to 2268 * remove any areas behind system bars in the snapshot. 2269 */ 2270 public Rect getContentInsets() { 2271 return mContentInsets; 2272 } 2273 2274 /** 2275 * @return Whether this snapshot is a down-sampled version of the full resolution. 2276 */ 2277 public boolean isReducedResolution() { 2278 return mReducedResolution; 2279 } 2280 2281 /** 2282 * @return The scale this snapshot was taken in. 2283 */ 2284 public float getScale() { 2285 return mScale; 2286 } 2287 2288 @Override 2289 public int describeContents() { 2290 return 0; 2291 } 2292 2293 @Override 2294 public void writeToParcel(Parcel dest, int flags) { 2295 dest.writeParcelable(mSnapshot, 0); 2296 dest.writeInt(mOrientation); 2297 dest.writeParcelable(mContentInsets, 0); 2298 dest.writeBoolean(mReducedResolution); 2299 dest.writeFloat(mScale); 2300 } 2301 2302 @Override 2303 public String toString() { 2304 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2305 + " mContentInsets=" + mContentInsets.toShortString() 2306 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2307 } 2308 2309 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2310 public TaskSnapshot createFromParcel(Parcel source) { 2311 return new TaskSnapshot(source); 2312 } 2313 public TaskSnapshot[] newArray(int size) { 2314 return new TaskSnapshot[size]; 2315 } 2316 }; 2317 } 2318 2319 /** @hide */ 2320 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2321 try { 2322 return getService().getTaskThumbnail(id); 2323 } catch (RemoteException e) { 2324 throw e.rethrowFromSystemServer(); 2325 } 2326 } 2327 2328 /** 2329 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2330 * activity along with the task, so it is positioned immediately behind 2331 * the task. 2332 */ 2333 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2334 2335 /** 2336 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2337 * user-instigated action, so the current activity will not receive a 2338 * hint that the user is leaving. 2339 */ 2340 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2341 2342 /** 2343 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2344 * with a null options argument. 2345 * 2346 * @param taskId The identifier of the task to be moved, as found in 2347 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2348 * @param flags Additional operational flags, 0 or more of 2349 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2350 */ 2351 public void moveTaskToFront(int taskId, int flags) { 2352 moveTaskToFront(taskId, flags, null); 2353 } 2354 2355 /** 2356 * Ask that the task associated with a given task ID be moved to the 2357 * front of the stack, so it is now visible to the user. Requires that 2358 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2359 * or a SecurityException will be thrown. 2360 * 2361 * @param taskId The identifier of the task to be moved, as found in 2362 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2363 * @param flags Additional operational flags, 0 or more of 2364 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2365 * @param options Additional options for the operation, either null or 2366 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2367 * Context.startActivity(Intent, Bundle)}. 2368 */ 2369 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2370 try { 2371 getService().moveTaskToFront(taskId, flags, options); 2372 } catch (RemoteException e) { 2373 throw e.rethrowFromSystemServer(); 2374 } 2375 } 2376 2377 /** 2378 * Information you can retrieve about a particular Service that is 2379 * currently running in the system. 2380 */ 2381 public static class RunningServiceInfo implements Parcelable { 2382 /** 2383 * The service component. 2384 */ 2385 public ComponentName service; 2386 2387 /** 2388 * If non-zero, this is the process the service is running in. 2389 */ 2390 public int pid; 2391 2392 /** 2393 * The UID that owns this service. 2394 */ 2395 public int uid; 2396 2397 /** 2398 * The name of the process this service runs in. 2399 */ 2400 public String process; 2401 2402 /** 2403 * Set to true if the service has asked to run as a foreground process. 2404 */ 2405 public boolean foreground; 2406 2407 /** 2408 * The time when the service was first made active, either by someone 2409 * starting or binding to it. This 2410 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2411 */ 2412 public long activeSince; 2413 2414 /** 2415 * Set to true if this service has been explicitly started. 2416 */ 2417 public boolean started; 2418 2419 /** 2420 * Number of clients connected to the service. 2421 */ 2422 public int clientCount; 2423 2424 /** 2425 * Number of times the service's process has crashed while the service 2426 * is running. 2427 */ 2428 public int crashCount; 2429 2430 /** 2431 * The time when there was last activity in the service (either 2432 * explicit requests to start it or clients binding to it). This 2433 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2434 */ 2435 public long lastActivityTime; 2436 2437 /** 2438 * If non-zero, this service is not currently running, but scheduled to 2439 * restart at the given time. 2440 */ 2441 public long restarting; 2442 2443 /** 2444 * Bit for {@link #flags}: set if this service has been 2445 * explicitly started. 2446 */ 2447 public static final int FLAG_STARTED = 1<<0; 2448 2449 /** 2450 * Bit for {@link #flags}: set if the service has asked to 2451 * run as a foreground process. 2452 */ 2453 public static final int FLAG_FOREGROUND = 1<<1; 2454 2455 /** 2456 * Bit for {@link #flags}: set if the service is running in a 2457 * core system process. 2458 */ 2459 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2460 2461 /** 2462 * Bit for {@link #flags}: set if the service is running in a 2463 * persistent process. 2464 */ 2465 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2466 2467 /** 2468 * Running flags. 2469 */ 2470 public int flags; 2471 2472 /** 2473 * For special services that are bound to by system code, this is 2474 * the package that holds the binding. 2475 */ 2476 public String clientPackage; 2477 2478 /** 2479 * For special services that are bound to by system code, this is 2480 * a string resource providing a user-visible label for who the 2481 * client is. 2482 */ 2483 public int clientLabel; 2484 2485 public RunningServiceInfo() { 2486 } 2487 2488 public int describeContents() { 2489 return 0; 2490 } 2491 2492 public void writeToParcel(Parcel dest, int flags) { 2493 ComponentName.writeToParcel(service, dest); 2494 dest.writeInt(pid); 2495 dest.writeInt(uid); 2496 dest.writeString(process); 2497 dest.writeInt(foreground ? 1 : 0); 2498 dest.writeLong(activeSince); 2499 dest.writeInt(started ? 1 : 0); 2500 dest.writeInt(clientCount); 2501 dest.writeInt(crashCount); 2502 dest.writeLong(lastActivityTime); 2503 dest.writeLong(restarting); 2504 dest.writeInt(this.flags); 2505 dest.writeString(clientPackage); 2506 dest.writeInt(clientLabel); 2507 } 2508 2509 public void readFromParcel(Parcel source) { 2510 service = ComponentName.readFromParcel(source); 2511 pid = source.readInt(); 2512 uid = source.readInt(); 2513 process = source.readString(); 2514 foreground = source.readInt() != 0; 2515 activeSince = source.readLong(); 2516 started = source.readInt() != 0; 2517 clientCount = source.readInt(); 2518 crashCount = source.readInt(); 2519 lastActivityTime = source.readLong(); 2520 restarting = source.readLong(); 2521 flags = source.readInt(); 2522 clientPackage = source.readString(); 2523 clientLabel = source.readInt(); 2524 } 2525 2526 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2527 public RunningServiceInfo createFromParcel(Parcel source) { 2528 return new RunningServiceInfo(source); 2529 } 2530 public RunningServiceInfo[] newArray(int size) { 2531 return new RunningServiceInfo[size]; 2532 } 2533 }; 2534 2535 private RunningServiceInfo(Parcel source) { 2536 readFromParcel(source); 2537 } 2538 } 2539 2540 /** 2541 * Return a list of the services that are currently running. 2542 * 2543 * <p><b>Note: this method is only intended for debugging or implementing 2544 * service management type user interfaces.</b></p> 2545 * 2546 * @param maxNum The maximum number of entries to return in the list. The 2547 * actual number returned may be smaller, depending on how many services 2548 * are running. 2549 * 2550 * @return Returns a list of RunningServiceInfo records describing each of 2551 * the running tasks. 2552 */ 2553 public List<RunningServiceInfo> getRunningServices(int maxNum) 2554 throws SecurityException { 2555 try { 2556 return getService() 2557 .getServices(maxNum, 0); 2558 } catch (RemoteException e) { 2559 throw e.rethrowFromSystemServer(); 2560 } 2561 } 2562 2563 /** 2564 * Returns a PendingIntent you can start to show a control panel for the 2565 * given running service. If the service does not have a control panel, 2566 * null is returned. 2567 */ 2568 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2569 throws SecurityException { 2570 try { 2571 return getService() 2572 .getRunningServiceControlPanel(service); 2573 } catch (RemoteException e) { 2574 throw e.rethrowFromSystemServer(); 2575 } 2576 } 2577 2578 /** 2579 * Information you can retrieve about the available memory through 2580 * {@link ActivityManager#getMemoryInfo}. 2581 */ 2582 public static class MemoryInfo implements Parcelable { 2583 /** 2584 * The available memory on the system. This number should not 2585 * be considered absolute: due to the nature of the kernel, a significant 2586 * portion of this memory is actually in use and needed for the overall 2587 * system to run well. 2588 */ 2589 public long availMem; 2590 2591 /** 2592 * The total memory accessible by the kernel. This is basically the 2593 * RAM size of the device, not including below-kernel fixed allocations 2594 * like DMA buffers, RAM for the baseband CPU, etc. 2595 */ 2596 public long totalMem; 2597 2598 /** 2599 * The threshold of {@link #availMem} at which we consider memory to be 2600 * low and start killing background services and other non-extraneous 2601 * processes. 2602 */ 2603 public long threshold; 2604 2605 /** 2606 * Set to true if the system considers itself to currently be in a low 2607 * memory situation. 2608 */ 2609 public boolean lowMemory; 2610 2611 /** @hide */ 2612 public long hiddenAppThreshold; 2613 /** @hide */ 2614 public long secondaryServerThreshold; 2615 /** @hide */ 2616 public long visibleAppThreshold; 2617 /** @hide */ 2618 public long foregroundAppThreshold; 2619 2620 public MemoryInfo() { 2621 } 2622 2623 public int describeContents() { 2624 return 0; 2625 } 2626 2627 public void writeToParcel(Parcel dest, int flags) { 2628 dest.writeLong(availMem); 2629 dest.writeLong(totalMem); 2630 dest.writeLong(threshold); 2631 dest.writeInt(lowMemory ? 1 : 0); 2632 dest.writeLong(hiddenAppThreshold); 2633 dest.writeLong(secondaryServerThreshold); 2634 dest.writeLong(visibleAppThreshold); 2635 dest.writeLong(foregroundAppThreshold); 2636 } 2637 2638 public void readFromParcel(Parcel source) { 2639 availMem = source.readLong(); 2640 totalMem = source.readLong(); 2641 threshold = source.readLong(); 2642 lowMemory = source.readInt() != 0; 2643 hiddenAppThreshold = source.readLong(); 2644 secondaryServerThreshold = source.readLong(); 2645 visibleAppThreshold = source.readLong(); 2646 foregroundAppThreshold = source.readLong(); 2647 } 2648 2649 public static final Creator<MemoryInfo> CREATOR 2650 = new Creator<MemoryInfo>() { 2651 public MemoryInfo createFromParcel(Parcel source) { 2652 return new MemoryInfo(source); 2653 } 2654 public MemoryInfo[] newArray(int size) { 2655 return new MemoryInfo[size]; 2656 } 2657 }; 2658 2659 private MemoryInfo(Parcel source) { 2660 readFromParcel(source); 2661 } 2662 } 2663 2664 /** 2665 * Return general information about the memory state of the system. This 2666 * can be used to help decide how to manage your own memory, though note 2667 * that polling is not recommended and 2668 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2669 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2670 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2671 * level of your process as needed, which gives a better hint for how to 2672 * manage its memory. 2673 */ 2674 public void getMemoryInfo(MemoryInfo outInfo) { 2675 try { 2676 getService().getMemoryInfo(outInfo); 2677 } catch (RemoteException e) { 2678 throw e.rethrowFromSystemServer(); 2679 } 2680 } 2681 2682 /** 2683 * Information you can retrieve about an ActivityStack in the system. 2684 * @hide 2685 */ 2686 public static class StackInfo implements Parcelable { 2687 public int stackId; 2688 public Rect bounds = new Rect(); 2689 public int[] taskIds; 2690 public String[] taskNames; 2691 public Rect[] taskBounds; 2692 public int[] taskUserIds; 2693 public ComponentName topActivity; 2694 public int displayId; 2695 public int userId; 2696 public boolean visible; 2697 // Index of the stack in the display's stack list, can be used for comparison of stack order 2698 public int position; 2699 2700 @Override 2701 public int describeContents() { 2702 return 0; 2703 } 2704 2705 @Override 2706 public void writeToParcel(Parcel dest, int flags) { 2707 dest.writeInt(stackId); 2708 dest.writeInt(bounds.left); 2709 dest.writeInt(bounds.top); 2710 dest.writeInt(bounds.right); 2711 dest.writeInt(bounds.bottom); 2712 dest.writeIntArray(taskIds); 2713 dest.writeStringArray(taskNames); 2714 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2715 dest.writeInt(boundsCount); 2716 for (int i = 0; i < boundsCount; i++) { 2717 dest.writeInt(taskBounds[i].left); 2718 dest.writeInt(taskBounds[i].top); 2719 dest.writeInt(taskBounds[i].right); 2720 dest.writeInt(taskBounds[i].bottom); 2721 } 2722 dest.writeIntArray(taskUserIds); 2723 dest.writeInt(displayId); 2724 dest.writeInt(userId); 2725 dest.writeInt(visible ? 1 : 0); 2726 dest.writeInt(position); 2727 if (topActivity != null) { 2728 dest.writeInt(1); 2729 topActivity.writeToParcel(dest, 0); 2730 } else { 2731 dest.writeInt(0); 2732 } 2733 } 2734 2735 public void readFromParcel(Parcel source) { 2736 stackId = source.readInt(); 2737 bounds = new Rect( 2738 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2739 taskIds = source.createIntArray(); 2740 taskNames = source.createStringArray(); 2741 final int boundsCount = source.readInt(); 2742 if (boundsCount > 0) { 2743 taskBounds = new Rect[boundsCount]; 2744 for (int i = 0; i < boundsCount; i++) { 2745 taskBounds[i] = new Rect(); 2746 taskBounds[i].set( 2747 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2748 } 2749 } else { 2750 taskBounds = null; 2751 } 2752 taskUserIds = source.createIntArray(); 2753 displayId = source.readInt(); 2754 userId = source.readInt(); 2755 visible = source.readInt() > 0; 2756 position = source.readInt(); 2757 if (source.readInt() > 0) { 2758 topActivity = ComponentName.readFromParcel(source); 2759 } 2760 } 2761 2762 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2763 @Override 2764 public StackInfo createFromParcel(Parcel source) { 2765 return new StackInfo(source); 2766 } 2767 @Override 2768 public StackInfo[] newArray(int size) { 2769 return new StackInfo[size]; 2770 } 2771 }; 2772 2773 public StackInfo() { 2774 } 2775 2776 private StackInfo(Parcel source) { 2777 readFromParcel(source); 2778 } 2779 2780 public String toString(String prefix) { 2781 StringBuilder sb = new StringBuilder(256); 2782 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2783 sb.append(" bounds="); sb.append(bounds.toShortString()); 2784 sb.append(" displayId="); sb.append(displayId); 2785 sb.append(" userId="); sb.append(userId); 2786 sb.append("\n"); 2787 prefix = prefix + " "; 2788 for (int i = 0; i < taskIds.length; ++i) { 2789 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2790 sb.append(": "); sb.append(taskNames[i]); 2791 if (taskBounds != null) { 2792 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2793 } 2794 sb.append(" userId=").append(taskUserIds[i]); 2795 sb.append(" visible=").append(visible); 2796 if (topActivity != null) { 2797 sb.append(" topActivity=").append(topActivity); 2798 } 2799 sb.append("\n"); 2800 } 2801 return sb.toString(); 2802 } 2803 2804 @Override 2805 public String toString() { 2806 return toString(""); 2807 } 2808 } 2809 2810 /** 2811 * @hide 2812 */ 2813 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2814 try { 2815 return getService().clearApplicationUserData(packageName, 2816 observer, UserHandle.myUserId()); 2817 } catch (RemoteException e) { 2818 throw e.rethrowFromSystemServer(); 2819 } 2820 } 2821 2822 /** 2823 * Permits an application to erase its own data from disk. This is equivalent to 2824 * the user choosing to clear the app's data from within the device settings UI. It 2825 * erases all dynamic data associated with the app -- its private data and data in its 2826 * private area on external storage -- but does not remove the installed application 2827 * itself, nor any OBB files. 2828 * 2829 * @return {@code true} if the application successfully requested that the application's 2830 * data be erased; {@code false} otherwise. 2831 */ 2832 public boolean clearApplicationUserData() { 2833 return clearApplicationUserData(mContext.getPackageName(), null); 2834 } 2835 2836 2837 /** 2838 * Permits an application to get the persistent URI permissions granted to another. 2839 * 2840 * <p>Typically called by Settings. 2841 * 2842 * @param packageName application to look for the granted permissions 2843 * @return list of granted URI permissions 2844 * 2845 * @hide 2846 */ 2847 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2848 try { 2849 return getService().getGrantedUriPermissions(packageName, 2850 UserHandle.myUserId()); 2851 } catch (RemoteException e) { 2852 throw e.rethrowFromSystemServer(); 2853 } 2854 } 2855 2856 /** 2857 * Permits an application to clear the persistent URI permissions granted to another. 2858 * 2859 * <p>Typically called by Settings. 2860 * 2861 * @param packageName application to clear its granted permissions 2862 * 2863 * @hide 2864 */ 2865 public void clearGrantedUriPermissions(String packageName) { 2866 try { 2867 getService().clearGrantedUriPermissions(packageName, 2868 UserHandle.myUserId()); 2869 } catch (RemoteException e) { 2870 throw e.rethrowFromSystemServer(); 2871 } 2872 } 2873 2874 /** 2875 * Information you can retrieve about any processes that are in an error condition. 2876 */ 2877 public static class ProcessErrorStateInfo implements Parcelable { 2878 /** 2879 * Condition codes 2880 */ 2881 public static final int NO_ERROR = 0; 2882 public static final int CRASHED = 1; 2883 public static final int NOT_RESPONDING = 2; 2884 2885 /** 2886 * The condition that the process is in. 2887 */ 2888 public int condition; 2889 2890 /** 2891 * The process name in which the crash or error occurred. 2892 */ 2893 public String processName; 2894 2895 /** 2896 * The pid of this process; 0 if none 2897 */ 2898 public int pid; 2899 2900 /** 2901 * The kernel user-ID that has been assigned to this process; 2902 * currently this is not a unique ID (multiple applications can have 2903 * the same uid). 2904 */ 2905 public int uid; 2906 2907 /** 2908 * The activity name associated with the error, if known. May be null. 2909 */ 2910 public String tag; 2911 2912 /** 2913 * A short message describing the error condition. 2914 */ 2915 public String shortMsg; 2916 2917 /** 2918 * A long message describing the error condition. 2919 */ 2920 public String longMsg; 2921 2922 /** 2923 * The stack trace where the error originated. May be null. 2924 */ 2925 public String stackTrace; 2926 2927 /** 2928 * to be deprecated: This value will always be null. 2929 */ 2930 public byte[] crashData = null; 2931 2932 public ProcessErrorStateInfo() { 2933 } 2934 2935 @Override 2936 public int describeContents() { 2937 return 0; 2938 } 2939 2940 @Override 2941 public void writeToParcel(Parcel dest, int flags) { 2942 dest.writeInt(condition); 2943 dest.writeString(processName); 2944 dest.writeInt(pid); 2945 dest.writeInt(uid); 2946 dest.writeString(tag); 2947 dest.writeString(shortMsg); 2948 dest.writeString(longMsg); 2949 dest.writeString(stackTrace); 2950 } 2951 2952 public void readFromParcel(Parcel source) { 2953 condition = source.readInt(); 2954 processName = source.readString(); 2955 pid = source.readInt(); 2956 uid = source.readInt(); 2957 tag = source.readString(); 2958 shortMsg = source.readString(); 2959 longMsg = source.readString(); 2960 stackTrace = source.readString(); 2961 } 2962 2963 public static final Creator<ProcessErrorStateInfo> CREATOR = 2964 new Creator<ProcessErrorStateInfo>() { 2965 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2966 return new ProcessErrorStateInfo(source); 2967 } 2968 public ProcessErrorStateInfo[] newArray(int size) { 2969 return new ProcessErrorStateInfo[size]; 2970 } 2971 }; 2972 2973 private ProcessErrorStateInfo(Parcel source) { 2974 readFromParcel(source); 2975 } 2976 } 2977 2978 /** 2979 * Returns a list of any processes that are currently in an error condition. The result 2980 * will be null if all processes are running properly at this time. 2981 * 2982 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2983 * current error conditions (it will not return an empty list). This list ordering is not 2984 * specified. 2985 */ 2986 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2987 try { 2988 return getService().getProcessesInErrorState(); 2989 } catch (RemoteException e) { 2990 throw e.rethrowFromSystemServer(); 2991 } 2992 } 2993 2994 /** 2995 * Information you can retrieve about a running process. 2996 */ 2997 public static class RunningAppProcessInfo implements Parcelable { 2998 /** 2999 * The name of the process that this object is associated with 3000 */ 3001 public String processName; 3002 3003 /** 3004 * The pid of this process; 0 if none 3005 */ 3006 public int pid; 3007 3008 /** 3009 * The user id of this process. 3010 */ 3011 public int uid; 3012 3013 /** 3014 * All packages that have been loaded into the process. 3015 */ 3016 public String pkgList[]; 3017 3018 /** 3019 * Constant for {@link #flags}: this is an app that is unable to 3020 * correctly save its state when going to the background, 3021 * so it can not be killed while in the background. 3022 * @hide 3023 */ 3024 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3025 3026 /** 3027 * Constant for {@link #flags}: this process is associated with a 3028 * persistent system app. 3029 * @hide 3030 */ 3031 public static final int FLAG_PERSISTENT = 1<<1; 3032 3033 /** 3034 * Constant for {@link #flags}: this process is associated with a 3035 * persistent system app. 3036 * @hide 3037 */ 3038 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3039 3040 /** 3041 * Flags of information. May be any of 3042 * {@link #FLAG_CANT_SAVE_STATE}. 3043 * @hide 3044 */ 3045 public int flags; 3046 3047 /** 3048 * Last memory trim level reported to the process: corresponds to 3049 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3050 * ComponentCallbacks2.onTrimMemory(int)}. 3051 */ 3052 public int lastTrimLevel; 3053 3054 /** 3055 * Constant for {@link #importance}: This process is running the 3056 * foreground UI; that is, it is the thing currently at the top of the screen 3057 * that the user is interacting with. 3058 */ 3059 public static final int IMPORTANCE_FOREGROUND = 100; 3060 3061 /** 3062 * Constant for {@link #importance}: This process is running a foreground 3063 * service, for example to perform music playback even while the user is 3064 * not immediately in the app. This generally indicates that the process 3065 * is doing something the user actively cares about. 3066 */ 3067 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3068 3069 /** 3070 * Constant for {@link #importance}: This process is running the foreground 3071 * UI, but the device is asleep so it is not visible to the user. This means 3072 * the user is not really aware of the process, because they can not see or 3073 * interact with it, but it is quite important because it what they expect to 3074 * return to once unlocking the device. 3075 */ 3076 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3077 3078 /** 3079 * Constant for {@link #importance}: This process is running something 3080 * that is actively visible to the user, though not in the immediate 3081 * foreground. This may be running a window that is behind the current 3082 * foreground (so paused and with its state saved, not interacting with 3083 * the user, but visible to them to some degree); it may also be running 3084 * other services under the system's control that it inconsiders important. 3085 */ 3086 public static final int IMPORTANCE_VISIBLE = 200; 3087 3088 /** 3089 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3090 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3091 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3092 * 3093 * @deprecated Use {@link #IMPORTANCE_PERCEPTIBLE} instead. 3094 */ 3095 @Deprecated 3096 public static final int IMPORTANCE_PERCEPTIBLE_DEPRECATED = 130; 3097 3098 /** 3099 * Constant for {@link #importance}: This process is not something the user 3100 * is directly aware of, but is otherwise perceptible to them to some degree. 3101 */ 3102 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3103 3104 /** 3105 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3106 * this wrong value 3107 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3108 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3109 * 3110 * @deprecated Use {@link #IMPORTANCE_CANT_SAVE_STATE} instead. 3111 * @hide 3112 */ 3113 @Deprecated 3114 public static final int IMPORTANCE_CANT_SAVE_STATE_DEPRECATED = 170; 3115 3116 /** 3117 * Constant for {@link #importance}: This process is running an 3118 * application that can not save its state, and thus can't be killed 3119 * while in the background. 3120 * @hide 3121 */ 3122 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3123 3124 /** 3125 * Constant for {@link #importance}: This process is contains services 3126 * that should remain running. These are background services apps have 3127 * started, not something the user is aware of, so they may be killed by 3128 * the system relatively freely (though it is generally desired that they 3129 * stay running as long as they want to). 3130 */ 3131 public static final int IMPORTANCE_SERVICE = 300; 3132 3133 /** 3134 * Constant for {@link #importance}: This process process contains 3135 * cached code that is expendable, not actively running any app components 3136 * we care about. 3137 */ 3138 public static final int IMPORTANCE_CACHED = 400; 3139 3140 /** 3141 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3142 */ 3143 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3144 3145 /** 3146 * Constant for {@link #importance}: This process is empty of any 3147 * actively running code. 3148 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3149 */ 3150 @Deprecated 3151 public static final int IMPORTANCE_EMPTY = 500; 3152 3153 /** 3154 * Constant for {@link #importance}: This process does not exist. 3155 */ 3156 public static final int IMPORTANCE_GONE = 1000; 3157 3158 /** 3159 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3160 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3161 * @hide 3162 */ 3163 public static int procStateToImportance(int procState) { 3164 if (procState == PROCESS_STATE_NONEXISTENT) { 3165 return IMPORTANCE_GONE; 3166 } else if (procState >= PROCESS_STATE_HOME) { 3167 return IMPORTANCE_CACHED; 3168 } else if (procState >= PROCESS_STATE_SERVICE) { 3169 return IMPORTANCE_SERVICE; 3170 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3171 return IMPORTANCE_CANT_SAVE_STATE; 3172 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3173 return IMPORTANCE_PERCEPTIBLE; 3174 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3175 return IMPORTANCE_VISIBLE; 3176 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3177 return IMPORTANCE_TOP_SLEEPING; 3178 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3179 return IMPORTANCE_FOREGROUND_SERVICE; 3180 } else { 3181 return IMPORTANCE_FOREGROUND; 3182 } 3183 } 3184 3185 /** 3186 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3187 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3188 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3189 * client's target SDK < {@link VERSION_CODES#O}. 3190 * @hide 3191 */ 3192 public static int procStateToImportanceForClient(int procState, Context clientContext) { 3193 final int importance = procStateToImportance(procState); 3194 3195 // For pre O apps, convert to the old, wrong values. 3196 if (clientContext.getApplicationInfo().targetSdkVersion < VERSION_CODES.O) { 3197 switch (importance) { 3198 case IMPORTANCE_PERCEPTIBLE: 3199 return IMPORTANCE_PERCEPTIBLE_DEPRECATED; 3200 case IMPORTANCE_CANT_SAVE_STATE: 3201 return IMPORTANCE_CANT_SAVE_STATE_DEPRECATED; 3202 } 3203 } 3204 return importance; 3205 } 3206 3207 /** @hide */ 3208 public static int importanceToProcState(int importance) { 3209 if (importance == IMPORTANCE_GONE) { 3210 return PROCESS_STATE_NONEXISTENT; 3211 } else if (importance >= IMPORTANCE_CACHED) { 3212 return PROCESS_STATE_HOME; 3213 } else if (importance >= IMPORTANCE_SERVICE) { 3214 return PROCESS_STATE_SERVICE; 3215 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3216 return PROCESS_STATE_HEAVY_WEIGHT; 3217 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3218 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3219 } else if (importance >= IMPORTANCE_VISIBLE) { 3220 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3221 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3222 return PROCESS_STATE_TOP_SLEEPING; 3223 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3224 return PROCESS_STATE_FOREGROUND_SERVICE; 3225 } else { 3226 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3227 } 3228 } 3229 3230 /** 3231 * The relative importance level that the system places on this 3232 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3233 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, or 3234 * {@link #IMPORTANCE_CACHED}. These 3235 * constants are numbered so that "more important" values are always 3236 * smaller than "less important" values. 3237 */ 3238 public int importance; 3239 3240 /** 3241 * An additional ordering within a particular {@link #importance} 3242 * category, providing finer-grained information about the relative 3243 * utility of processes within a category. This number means nothing 3244 * except that a smaller values are more recently used (and thus 3245 * more important). Currently an LRU value is only maintained for 3246 * the {@link #IMPORTANCE_CACHED} category, though others may 3247 * be maintained in the future. 3248 */ 3249 public int lru; 3250 3251 /** 3252 * Constant for {@link #importanceReasonCode}: nothing special has 3253 * been specified for the reason for this level. 3254 */ 3255 public static final int REASON_UNKNOWN = 0; 3256 3257 /** 3258 * Constant for {@link #importanceReasonCode}: one of the application's 3259 * content providers is being used by another process. The pid of 3260 * the client process is in {@link #importanceReasonPid} and the 3261 * target provider in this process is in 3262 * {@link #importanceReasonComponent}. 3263 */ 3264 public static final int REASON_PROVIDER_IN_USE = 1; 3265 3266 /** 3267 * Constant for {@link #importanceReasonCode}: one of the application's 3268 * content providers is being used by another process. The pid of 3269 * the client process is in {@link #importanceReasonPid} and the 3270 * target provider in this process is in 3271 * {@link #importanceReasonComponent}. 3272 */ 3273 public static final int REASON_SERVICE_IN_USE = 2; 3274 3275 /** 3276 * The reason for {@link #importance}, if any. 3277 */ 3278 public int importanceReasonCode; 3279 3280 /** 3281 * For the specified values of {@link #importanceReasonCode}, this 3282 * is the process ID of the other process that is a client of this 3283 * process. This will be 0 if no other process is using this one. 3284 */ 3285 public int importanceReasonPid; 3286 3287 /** 3288 * For the specified values of {@link #importanceReasonCode}, this 3289 * is the name of the component that is being used in this process. 3290 */ 3291 public ComponentName importanceReasonComponent; 3292 3293 /** 3294 * When {@link #importanceReasonPid} is non-0, this is the importance 3295 * of the other pid. @hide 3296 */ 3297 public int importanceReasonImportance; 3298 3299 /** 3300 * Current process state, as per PROCESS_STATE_* constants. 3301 * @hide 3302 */ 3303 public int processState; 3304 3305 public RunningAppProcessInfo() { 3306 importance = IMPORTANCE_FOREGROUND; 3307 importanceReasonCode = REASON_UNKNOWN; 3308 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3309 } 3310 3311 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3312 processName = pProcessName; 3313 pid = pPid; 3314 pkgList = pArr; 3315 } 3316 3317 public int describeContents() { 3318 return 0; 3319 } 3320 3321 public void writeToParcel(Parcel dest, int flags) { 3322 dest.writeString(processName); 3323 dest.writeInt(pid); 3324 dest.writeInt(uid); 3325 dest.writeStringArray(pkgList); 3326 dest.writeInt(this.flags); 3327 dest.writeInt(lastTrimLevel); 3328 dest.writeInt(importance); 3329 dest.writeInt(lru); 3330 dest.writeInt(importanceReasonCode); 3331 dest.writeInt(importanceReasonPid); 3332 ComponentName.writeToParcel(importanceReasonComponent, dest); 3333 dest.writeInt(importanceReasonImportance); 3334 dest.writeInt(processState); 3335 } 3336 3337 public void readFromParcel(Parcel source) { 3338 processName = source.readString(); 3339 pid = source.readInt(); 3340 uid = source.readInt(); 3341 pkgList = source.readStringArray(); 3342 flags = source.readInt(); 3343 lastTrimLevel = source.readInt(); 3344 importance = source.readInt(); 3345 lru = source.readInt(); 3346 importanceReasonCode = source.readInt(); 3347 importanceReasonPid = source.readInt(); 3348 importanceReasonComponent = ComponentName.readFromParcel(source); 3349 importanceReasonImportance = source.readInt(); 3350 processState = source.readInt(); 3351 } 3352 3353 public static final Creator<RunningAppProcessInfo> CREATOR = 3354 new Creator<RunningAppProcessInfo>() { 3355 public RunningAppProcessInfo createFromParcel(Parcel source) { 3356 return new RunningAppProcessInfo(source); 3357 } 3358 public RunningAppProcessInfo[] newArray(int size) { 3359 return new RunningAppProcessInfo[size]; 3360 } 3361 }; 3362 3363 private RunningAppProcessInfo(Parcel source) { 3364 readFromParcel(source); 3365 } 3366 } 3367 3368 /** 3369 * Returns a list of application processes installed on external media 3370 * that are running on the device. 3371 * 3372 * <p><b>Note: this method is only intended for debugging or building 3373 * a user-facing process management UI.</b></p> 3374 * 3375 * @return Returns a list of ApplicationInfo records, or null if none 3376 * This list ordering is not specified. 3377 * @hide 3378 */ 3379 public List<ApplicationInfo> getRunningExternalApplications() { 3380 try { 3381 return getService().getRunningExternalApplications(); 3382 } catch (RemoteException e) { 3383 throw e.rethrowFromSystemServer(); 3384 } 3385 } 3386 3387 /** 3388 * Sets the memory trim mode for a process and schedules a memory trim operation. 3389 * 3390 * <p><b>Note: this method is only intended for testing framework.</b></p> 3391 * 3392 * @return Returns true if successful. 3393 * @hide 3394 */ 3395 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3396 try { 3397 return getService().setProcessMemoryTrimLevel(process, userId, 3398 level); 3399 } catch (RemoteException e) { 3400 throw e.rethrowFromSystemServer(); 3401 } 3402 } 3403 3404 /** 3405 * Returns a list of application processes that are running on the device. 3406 * 3407 * <p><b>Note: this method is only intended for debugging or building 3408 * a user-facing process management UI.</b></p> 3409 * 3410 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3411 * running processes (it will not return an empty list). This list ordering is not 3412 * specified. 3413 */ 3414 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3415 try { 3416 return getService().getRunningAppProcesses(); 3417 } catch (RemoteException e) { 3418 throw e.rethrowFromSystemServer(); 3419 } 3420 } 3421 3422 /** 3423 * Return the importance of a given package name, based on the processes that are 3424 * currently running. The return value is one of the importance constants defined 3425 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3426 * processes that this package has code running inside of. If there are no processes 3427 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3428 * @hide 3429 */ 3430 @SystemApi @TestApi 3431 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3432 public int getPackageImportance(String packageName) { 3433 try { 3434 int procState = getService().getPackageProcessState(packageName, 3435 mContext.getOpPackageName()); 3436 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3437 } catch (RemoteException e) { 3438 throw e.rethrowFromSystemServer(); 3439 } 3440 } 3441 3442 /** 3443 * Return the importance of a given uid, based on the processes that are 3444 * currently running. The return value is one of the importance constants defined 3445 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3446 * processes that this uid has running. If there are no processes 3447 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3448 * @hide 3449 */ 3450 @SystemApi @TestApi 3451 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3452 public int getUidImportance(int uid) { 3453 try { 3454 int procState = getService().getUidProcessState(uid, 3455 mContext.getOpPackageName()); 3456 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3457 } catch (RemoteException e) { 3458 throw e.rethrowFromSystemServer(); 3459 } 3460 } 3461 3462 /** 3463 * Callback to get reports about changes to the importance of a uid. Use with 3464 * {@link #addOnUidImportanceListener}. 3465 * @hide 3466 */ 3467 @SystemApi @TestApi 3468 public interface OnUidImportanceListener { 3469 /** 3470 * The importance if a given uid has changed. Will be one of the importance 3471 * values in {@link RunningAppProcessInfo}; 3472 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3473 * when the uid is no longer running at all. This callback will happen on a thread 3474 * from a thread pool, not the main UI thread. 3475 * @param uid The uid whose importance has changed. 3476 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3477 */ 3478 void onUidImportance(int uid, int importance); 3479 } 3480 3481 /** 3482 * Start monitoring changes to the imoportance of uids running in the system. 3483 * @param listener The listener callback that will receive change reports. 3484 * @param importanceCutpoint The level of importance in which the caller is interested 3485 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3486 * is used here, you will receive a call each time a uids importance transitions between 3487 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3488 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3489 * 3490 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3491 * permission to use this feature.</p> 3492 * 3493 * @throws IllegalArgumentException If the listener is already registered. 3494 * @throws SecurityException If the caller does not hold 3495 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3496 * @hide 3497 */ 3498 @SystemApi @TestApi 3499 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3500 int importanceCutpoint) { 3501 synchronized (this) { 3502 if (mImportanceListeners.containsKey(listener)) { 3503 throw new IllegalArgumentException("Listener already registered: " + listener); 3504 } 3505 // TODO: implement the cut point in the system process to avoid IPCs. 3506 UidObserver observer = new UidObserver(listener, mContext); 3507 try { 3508 getService().registerUidObserver(observer, 3509 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3510 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3511 mContext.getOpPackageName()); 3512 } catch (RemoteException e) { 3513 throw e.rethrowFromSystemServer(); 3514 } 3515 mImportanceListeners.put(listener, observer); 3516 } 3517 } 3518 3519 /** 3520 * Remove an importance listener that was previously registered with 3521 * {@link #addOnUidImportanceListener}. 3522 * 3523 * @throws IllegalArgumentException If the listener is not registered. 3524 * @hide 3525 */ 3526 @SystemApi @TestApi 3527 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3528 synchronized (this) { 3529 UidObserver observer = mImportanceListeners.remove(listener); 3530 if (observer == null) { 3531 throw new IllegalArgumentException("Listener not registered: " + listener); 3532 } 3533 try { 3534 getService().unregisterUidObserver(observer); 3535 } catch (RemoteException e) { 3536 throw e.rethrowFromSystemServer(); 3537 } 3538 } 3539 } 3540 3541 /** 3542 * Return global memory state information for the calling process. This 3543 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3544 * only fields that will be filled in are 3545 * {@link RunningAppProcessInfo#pid}, 3546 * {@link RunningAppProcessInfo#uid}, 3547 * {@link RunningAppProcessInfo#lastTrimLevel}, 3548 * {@link RunningAppProcessInfo#importance}, 3549 * {@link RunningAppProcessInfo#lru}, and 3550 * {@link RunningAppProcessInfo#importanceReasonCode}. 3551 */ 3552 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3553 try { 3554 getService().getMyMemoryState(outState); 3555 } catch (RemoteException e) { 3556 throw e.rethrowFromSystemServer(); 3557 } 3558 } 3559 3560 /** 3561 * Return information about the memory usage of one or more processes. 3562 * 3563 * <p><b>Note: this method is only intended for debugging or building 3564 * a user-facing process management UI.</b></p> 3565 * 3566 * @param pids The pids of the processes whose memory usage is to be 3567 * retrieved. 3568 * @return Returns an array of memory information, one for each 3569 * requested pid. 3570 */ 3571 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3572 try { 3573 return getService().getProcessMemoryInfo(pids); 3574 } catch (RemoteException e) { 3575 throw e.rethrowFromSystemServer(); 3576 } 3577 } 3578 3579 /** 3580 * @deprecated This is now just a wrapper for 3581 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3582 * is no longer available to applications because it allows them to 3583 * break other applications by removing their alarms, stopping their 3584 * services, etc. 3585 */ 3586 @Deprecated 3587 public void restartPackage(String packageName) { 3588 killBackgroundProcesses(packageName); 3589 } 3590 3591 /** 3592 * Have the system immediately kill all background processes associated 3593 * with the given package. This is the same as the kernel killing those 3594 * processes to reclaim memory; the system will take care of restarting 3595 * these processes in the future as needed. 3596 * 3597 * <p>You must hold the permission 3598 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3599 * call this method. 3600 * 3601 * @param packageName The name of the package whose processes are to 3602 * be killed. 3603 */ 3604 public void killBackgroundProcesses(String packageName) { 3605 try { 3606 getService().killBackgroundProcesses(packageName, 3607 UserHandle.myUserId()); 3608 } catch (RemoteException e) { 3609 throw e.rethrowFromSystemServer(); 3610 } 3611 } 3612 3613 /** 3614 * Kills the specified UID. 3615 * @param uid The UID to kill. 3616 * @param reason The reason for the kill. 3617 * 3618 * @hide 3619 */ 3620 @SystemApi 3621 @RequiresPermission(Manifest.permission.KILL_UID) 3622 public void killUid(int uid, String reason) { 3623 try { 3624 getService().killUid(UserHandle.getAppId(uid), 3625 UserHandle.getUserId(uid), reason); 3626 } catch (RemoteException e) { 3627 throw e.rethrowFromSystemServer(); 3628 } 3629 } 3630 3631 /** 3632 * Have the system perform a force stop of everything associated with 3633 * the given application package. All processes that share its uid 3634 * will be killed, all services it has running stopped, all activities 3635 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3636 * broadcast will be sent, so that any of its registered alarms can 3637 * be stopped, notifications removed, etc. 3638 * 3639 * <p>You must hold the permission 3640 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3641 * call this method. 3642 * 3643 * @param packageName The name of the package to be stopped. 3644 * @param userId The user for which the running package is to be stopped. 3645 * 3646 * @hide This is not available to third party applications due to 3647 * it allowing them to break other applications by stopping their 3648 * services, removing their alarms, etc. 3649 */ 3650 public void forceStopPackageAsUser(String packageName, int userId) { 3651 try { 3652 getService().forceStopPackage(packageName, userId); 3653 } catch (RemoteException e) { 3654 throw e.rethrowFromSystemServer(); 3655 } 3656 } 3657 3658 /** 3659 * @see #forceStopPackageAsUser(String, int) 3660 * @hide 3661 */ 3662 @SystemApi 3663 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3664 public void forceStopPackage(String packageName) { 3665 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3666 } 3667 3668 /** 3669 * Get the device configuration attributes. 3670 */ 3671 public ConfigurationInfo getDeviceConfigurationInfo() { 3672 try { 3673 return getService().getDeviceConfigurationInfo(); 3674 } catch (RemoteException e) { 3675 throw e.rethrowFromSystemServer(); 3676 } 3677 } 3678 3679 /** 3680 * Get the preferred density of icons for the launcher. This is used when 3681 * custom drawables are created (e.g., for shortcuts). 3682 * 3683 * @return density in terms of DPI 3684 */ 3685 public int getLauncherLargeIconDensity() { 3686 final Resources res = mContext.getResources(); 3687 final int density = res.getDisplayMetrics().densityDpi; 3688 final int sw = res.getConfiguration().smallestScreenWidthDp; 3689 3690 if (sw < 600) { 3691 // Smaller than approx 7" tablets, use the regular icon size. 3692 return density; 3693 } 3694 3695 switch (density) { 3696 case DisplayMetrics.DENSITY_LOW: 3697 return DisplayMetrics.DENSITY_MEDIUM; 3698 case DisplayMetrics.DENSITY_MEDIUM: 3699 return DisplayMetrics.DENSITY_HIGH; 3700 case DisplayMetrics.DENSITY_TV: 3701 return DisplayMetrics.DENSITY_XHIGH; 3702 case DisplayMetrics.DENSITY_HIGH: 3703 return DisplayMetrics.DENSITY_XHIGH; 3704 case DisplayMetrics.DENSITY_XHIGH: 3705 return DisplayMetrics.DENSITY_XXHIGH; 3706 case DisplayMetrics.DENSITY_XXHIGH: 3707 return DisplayMetrics.DENSITY_XHIGH * 2; 3708 default: 3709 // The density is some abnormal value. Return some other 3710 // abnormal value that is a reasonable scaling of it. 3711 return (int)((density*1.5f)+.5f); 3712 } 3713 } 3714 3715 /** 3716 * Get the preferred launcher icon size. This is used when custom drawables 3717 * are created (e.g., for shortcuts). 3718 * 3719 * @return dimensions of square icons in terms of pixels 3720 */ 3721 public int getLauncherLargeIconSize() { 3722 return getLauncherLargeIconSizeInner(mContext); 3723 } 3724 3725 static int getLauncherLargeIconSizeInner(Context context) { 3726 final Resources res = context.getResources(); 3727 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3728 final int sw = res.getConfiguration().smallestScreenWidthDp; 3729 3730 if (sw < 600) { 3731 // Smaller than approx 7" tablets, use the regular icon size. 3732 return size; 3733 } 3734 3735 final int density = res.getDisplayMetrics().densityDpi; 3736 3737 switch (density) { 3738 case DisplayMetrics.DENSITY_LOW: 3739 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3740 case DisplayMetrics.DENSITY_MEDIUM: 3741 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3742 case DisplayMetrics.DENSITY_TV: 3743 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3744 case DisplayMetrics.DENSITY_HIGH: 3745 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3746 case DisplayMetrics.DENSITY_XHIGH: 3747 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3748 case DisplayMetrics.DENSITY_XXHIGH: 3749 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3750 default: 3751 // The density is some abnormal value. Return some other 3752 // abnormal value that is a reasonable scaling of it. 3753 return (int)((size*1.5f) + .5f); 3754 } 3755 } 3756 3757 /** 3758 * Returns "true" if the user interface is currently being messed with 3759 * by a monkey. 3760 */ 3761 public static boolean isUserAMonkey() { 3762 try { 3763 return getService().isUserAMonkey(); 3764 } catch (RemoteException e) { 3765 throw e.rethrowFromSystemServer(); 3766 } 3767 } 3768 3769 /** 3770 * Returns "true" if device is running in a test harness. 3771 */ 3772 public static boolean isRunningInTestHarness() { 3773 return SystemProperties.getBoolean("ro.test_harness", false); 3774 } 3775 3776 /** 3777 * Returns the launch count of each installed package. 3778 * 3779 * @hide 3780 */ 3781 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3782 try { 3783 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3784 ServiceManager.getService("usagestats")); 3785 if (usageStatsService == null) { 3786 return new HashMap<String, Integer>(); 3787 } 3788 3789 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3790 ActivityThread.currentPackageName()); 3791 if (allPkgUsageStats == null) { 3792 return new HashMap<String, Integer>(); 3793 } 3794 3795 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3796 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3797 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3798 } 3799 3800 return launchCounts; 3801 } catch (RemoteException e) { 3802 Log.w(TAG, "Could not query launch counts", e); 3803 return new HashMap<String, Integer>(); 3804 } 3805 }*/ 3806 3807 /** @hide */ 3808 public static int checkComponentPermission(String permission, int uid, 3809 int owningUid, boolean exported) { 3810 // Root, system server get to do everything. 3811 final int appId = UserHandle.getAppId(uid); 3812 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3813 return PackageManager.PERMISSION_GRANTED; 3814 } 3815 // Isolated processes don't get any permissions. 3816 if (UserHandle.isIsolated(uid)) { 3817 return PackageManager.PERMISSION_DENIED; 3818 } 3819 // If there is a uid that owns whatever is being accessed, it has 3820 // blanket access to it regardless of the permissions it requires. 3821 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3822 return PackageManager.PERMISSION_GRANTED; 3823 } 3824 // If the target is not exported, then nobody else can get to it. 3825 if (!exported) { 3826 /* 3827 RuntimeException here = new RuntimeException("here"); 3828 here.fillInStackTrace(); 3829 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3830 here); 3831 */ 3832 return PackageManager.PERMISSION_DENIED; 3833 } 3834 if (permission == null) { 3835 return PackageManager.PERMISSION_GRANTED; 3836 } 3837 try { 3838 return AppGlobals.getPackageManager() 3839 .checkUidPermission(permission, uid); 3840 } catch (RemoteException e) { 3841 throw e.rethrowFromSystemServer(); 3842 } 3843 } 3844 3845 /** @hide */ 3846 public static int checkUidPermission(String permission, int uid) { 3847 try { 3848 return AppGlobals.getPackageManager() 3849 .checkUidPermission(permission, uid); 3850 } catch (RemoteException e) { 3851 throw e.rethrowFromSystemServer(); 3852 } 3853 } 3854 3855 /** 3856 * @hide 3857 * Helper for dealing with incoming user arguments to system service calls. 3858 * Takes care of checking permissions and converting USER_CURRENT to the 3859 * actual current user. 3860 * 3861 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3862 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3863 * @param userId The user id argument supplied by the caller -- this is the user 3864 * they want to run as. 3865 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3866 * to get a USER_ALL returned and deal with it correctly. If false, 3867 * an exception will be thrown if USER_ALL is supplied. 3868 * @param requireFull If true, the caller must hold 3869 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3870 * different user than their current process; otherwise they must hold 3871 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3872 * @param name Optional textual name of the incoming call; only for generating error messages. 3873 * @param callerPackage Optional package name of caller; only for error messages. 3874 * 3875 * @return Returns the user ID that the call should run as. Will always be a concrete 3876 * user number, unless <var>allowAll</var> is true in which case it could also be 3877 * USER_ALL. 3878 */ 3879 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3880 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3881 if (UserHandle.getUserId(callingUid) == userId) { 3882 return userId; 3883 } 3884 try { 3885 return getService().handleIncomingUser(callingPid, 3886 callingUid, userId, allowAll, requireFull, name, callerPackage); 3887 } catch (RemoteException e) { 3888 throw e.rethrowFromSystemServer(); 3889 } 3890 } 3891 3892 /** 3893 * Gets the userId of the current foreground user. Requires system permissions. 3894 * @hide 3895 */ 3896 @SystemApi 3897 public static int getCurrentUser() { 3898 UserInfo ui; 3899 try { 3900 ui = getService().getCurrentUser(); 3901 return ui != null ? ui.id : 0; 3902 } catch (RemoteException e) { 3903 throw e.rethrowFromSystemServer(); 3904 } 3905 } 3906 3907 /** 3908 * @param userid the user's id. Zero indicates the default user. 3909 * @hide 3910 */ 3911 public boolean switchUser(int userid) { 3912 try { 3913 return getService().switchUser(userid); 3914 } catch (RemoteException e) { 3915 throw e.rethrowFromSystemServer(); 3916 } 3917 } 3918 3919 /** 3920 * Logs out current current foreground user by switching to the system user and stopping the 3921 * user being switched from. 3922 * @hide 3923 */ 3924 public static void logoutCurrentUser() { 3925 int currentUser = ActivityManager.getCurrentUser(); 3926 if (currentUser != UserHandle.USER_SYSTEM) { 3927 try { 3928 getService().switchUser(UserHandle.USER_SYSTEM); 3929 getService().stopUser(currentUser, /* force= */ false, null); 3930 } catch (RemoteException e) { 3931 e.rethrowFromSystemServer(); 3932 } 3933 } 3934 } 3935 3936 /** {@hide} */ 3937 public static final int FLAG_OR_STOPPED = 1 << 0; 3938 /** {@hide} */ 3939 public static final int FLAG_AND_LOCKED = 1 << 1; 3940 /** {@hide} */ 3941 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3942 /** {@hide} */ 3943 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3944 3945 /** 3946 * Return whether the given user is actively running. This means that 3947 * the user is in the "started" state, not "stopped" -- it is currently 3948 * allowed to run code through scheduled alarms, receiving broadcasts, 3949 * etc. A started user may be either the current foreground user or a 3950 * background user; the result here does not distinguish between the two. 3951 * @param userId the user's id. Zero indicates the default user. 3952 * @hide 3953 */ 3954 public boolean isUserRunning(int userId) { 3955 try { 3956 return getService().isUserRunning(userId, 0); 3957 } catch (RemoteException e) { 3958 throw e.rethrowFromSystemServer(); 3959 } 3960 } 3961 3962 /** {@hide} */ 3963 public boolean isVrModePackageEnabled(ComponentName component) { 3964 try { 3965 return getService().isVrModePackageEnabled(component); 3966 } catch (RemoteException e) { 3967 throw e.rethrowFromSystemServer(); 3968 } 3969 } 3970 3971 /** 3972 * Perform a system dump of various state associated with the given application 3973 * package name. This call blocks while the dump is being performed, so should 3974 * not be done on a UI thread. The data will be written to the given file 3975 * descriptor as text. An application must hold the 3976 * {@link android.Manifest.permission#DUMP} permission to make this call. 3977 * @param fd The file descriptor that the dump should be written to. The file 3978 * descriptor is <em>not</em> closed by this function; the caller continues to 3979 * own it. 3980 * @param packageName The name of the package that is to be dumped. 3981 */ 3982 public void dumpPackageState(FileDescriptor fd, String packageName) { 3983 dumpPackageStateStatic(fd, packageName); 3984 } 3985 3986 /** 3987 * @hide 3988 */ 3989 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3990 FileOutputStream fout = new FileOutputStream(fd); 3991 PrintWriter pw = new FastPrintWriter(fout); 3992 dumpService(pw, fd, "package", new String[] { packageName }); 3993 pw.println(); 3994 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3995 "-a", "package", packageName }); 3996 pw.println(); 3997 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3998 pw.println(); 3999 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4000 pw.println(); 4001 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4002 pw.println(); 4003 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4004 pw.flush(); 4005 } 4006 4007 /** 4008 * @hide 4009 */ 4010 public static boolean isSystemReady() { 4011 if (!sSystemReady) { 4012 if (ActivityThread.isSystem()) { 4013 sSystemReady = 4014 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4015 } else { 4016 // Since this is being called from outside system server, system should be 4017 // ready by now. 4018 sSystemReady = true; 4019 } 4020 } 4021 return sSystemReady; 4022 } 4023 4024 /** 4025 * @hide 4026 */ 4027 public static void broadcastStickyIntent(Intent intent, int userId) { 4028 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4029 } 4030 4031 /** 4032 * Convenience for sending a sticky broadcast. For internal use only. 4033 * 4034 * @hide 4035 */ 4036 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4037 try { 4038 getService().broadcastIntent( 4039 null, intent, null, null, Activity.RESULT_OK, null, null, 4040 null /*permission*/, appOp, null, false, true, userId); 4041 } catch (RemoteException ex) { 4042 } 4043 } 4044 4045 /** 4046 * @hide 4047 */ 4048 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4049 String tag) { 4050 try { 4051 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4052 sourceUid, sourcePkg, tag); 4053 } catch (RemoteException ex) { 4054 } 4055 } 4056 4057 /** 4058 * @hide 4059 */ 4060 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4061 try { 4062 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4063 } catch (RemoteException ex) { 4064 } 4065 } 4066 4067 /** 4068 * @hide 4069 */ 4070 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4071 try { 4072 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4073 } catch (RemoteException ex) { 4074 } 4075 } 4076 4077 /** 4078 * @hide 4079 */ 4080 public static IActivityManager getService() { 4081 return IActivityManagerSingleton.get(); 4082 } 4083 4084 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4085 new Singleton<IActivityManager>() { 4086 @Override 4087 protected IActivityManager create() { 4088 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4089 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4090 return am; 4091 } 4092 }; 4093 4094 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4095 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4096 IBinder service = ServiceManager.checkService(name); 4097 if (service == null) { 4098 pw.println(" (Service not found)"); 4099 return; 4100 } 4101 TransferPipe tp = null; 4102 try { 4103 pw.flush(); 4104 tp = new TransferPipe(); 4105 tp.setBufferPrefix(" "); 4106 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4107 tp.go(fd, 10000); 4108 } catch (Throwable e) { 4109 if (tp != null) { 4110 tp.kill(); 4111 } 4112 pw.println("Failure dumping service:"); 4113 e.printStackTrace(pw); 4114 } 4115 } 4116 4117 /** 4118 * Request that the system start watching for the calling process to exceed a pss 4119 * size as given here. Once called, the system will look for any occasions where it 4120 * sees the associated process with a larger pss size and, when this happens, automatically 4121 * pull a heap dump from it and allow the user to share the data. Note that this request 4122 * continues running even if the process is killed and restarted. To remove the watch, 4123 * use {@link #clearWatchHeapLimit()}. 4124 * 4125 * <p>This API only work if the calling process has been marked as 4126 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4127 * (userdebug or eng) build.</p> 4128 * 4129 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4130 * handle heap limit reports themselves.</p> 4131 * 4132 * @param pssSize The size in bytes to set the limit at. 4133 */ 4134 public void setWatchHeapLimit(long pssSize) { 4135 try { 4136 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4137 mContext.getPackageName()); 4138 } catch (RemoteException e) { 4139 throw e.rethrowFromSystemServer(); 4140 } 4141 } 4142 4143 /** 4144 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4145 * If your package has an activity handling this action, it will be launched with the 4146 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4147 * match the activty must support this action and a MIME type of "*/*". 4148 */ 4149 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4150 4151 /** 4152 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4153 */ 4154 public void clearWatchHeapLimit() { 4155 try { 4156 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4157 } catch (RemoteException e) { 4158 throw e.rethrowFromSystemServer(); 4159 } 4160 } 4161 4162 /** 4163 * @hide 4164 */ 4165 public void startLockTaskMode(int taskId) { 4166 try { 4167 getService().startLockTaskModeById(taskId); 4168 } catch (RemoteException e) { 4169 throw e.rethrowFromSystemServer(); 4170 } 4171 } 4172 4173 /** 4174 * @hide 4175 */ 4176 public void stopLockTaskMode() { 4177 try { 4178 getService().stopLockTaskMode(); 4179 } catch (RemoteException e) { 4180 throw e.rethrowFromSystemServer(); 4181 } 4182 } 4183 4184 /** 4185 * Return whether currently in lock task mode. When in this mode 4186 * no new tasks can be created or switched to. 4187 * 4188 * @see Activity#startLockTask() 4189 * 4190 * @deprecated Use {@link #getLockTaskModeState} instead. 4191 */ 4192 @Deprecated 4193 public boolean isInLockTaskMode() { 4194 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4195 } 4196 4197 /** 4198 * Return the current state of task locking. The three possible outcomes 4199 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4200 * and {@link #LOCK_TASK_MODE_PINNED}. 4201 * 4202 * @see Activity#startLockTask() 4203 */ 4204 public int getLockTaskModeState() { 4205 try { 4206 return getService().getLockTaskModeState(); 4207 } catch (RemoteException e) { 4208 throw e.rethrowFromSystemServer(); 4209 } 4210 } 4211 4212 /** 4213 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4214 * thread can be a VR thread in a process at a time, and that thread may be subject to 4215 * restrictions on the amount of time it can run. 4216 * 4217 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4218 * method will return to normal operation, and calling this method will do nothing while 4219 * persistent VR mode is enabled. 4220 * 4221 * To reset the VR thread for an application, a tid of 0 can be passed. 4222 * 4223 * @see android.os.Process#myTid() 4224 * @param tid tid of the VR thread 4225 */ 4226 public static void setVrThread(int tid) { 4227 try { 4228 getService().setVrThread(tid); 4229 } catch (RemoteException e) { 4230 // pass 4231 } 4232 } 4233 4234 /** 4235 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4236 * beyond a single process. It requires holding the 4237 * {@link android.Manifest.permission#RESTRICTED_VR_ACCESS} permission. Only one thread can be a 4238 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4239 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4240 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4241 * persistent VR thread loses its new scheduling priority; this method must be called again to 4242 * set the persistent thread. 4243 * 4244 * To reset the persistent VR thread, a tid of 0 can be passed. 4245 * 4246 * @see android.os.Process#myTid() 4247 * @param tid tid of the VR thread 4248 * @hide 4249 */ 4250 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4251 public static void setPersistentVrThread(int tid) { 4252 try { 4253 getService().setPersistentVrThread(tid); 4254 } catch (RemoteException e) { 4255 // pass 4256 } 4257 } 4258 4259 /** 4260 * The AppTask allows you to manage your own application's tasks. 4261 * See {@link android.app.ActivityManager#getAppTasks()} 4262 */ 4263 public static class AppTask { 4264 private IAppTask mAppTaskImpl; 4265 4266 /** @hide */ 4267 public AppTask(IAppTask task) { 4268 mAppTaskImpl = task; 4269 } 4270 4271 /** 4272 * Finishes all activities in this task and removes it from the recent tasks list. 4273 */ 4274 public void finishAndRemoveTask() { 4275 try { 4276 mAppTaskImpl.finishAndRemoveTask(); 4277 } catch (RemoteException e) { 4278 throw e.rethrowFromSystemServer(); 4279 } 4280 } 4281 4282 /** 4283 * Get the RecentTaskInfo associated with this task. 4284 * 4285 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4286 */ 4287 public RecentTaskInfo getTaskInfo() { 4288 try { 4289 return mAppTaskImpl.getTaskInfo(); 4290 } catch (RemoteException e) { 4291 throw e.rethrowFromSystemServer(); 4292 } 4293 } 4294 4295 /** 4296 * Bring this task to the foreground. If it contains activities, they will be 4297 * brought to the foreground with it and their instances re-created if needed. 4298 * If it doesn't contain activities, the root activity of the task will be 4299 * re-launched. 4300 */ 4301 public void moveToFront() { 4302 try { 4303 mAppTaskImpl.moveToFront(); 4304 } catch (RemoteException e) { 4305 throw e.rethrowFromSystemServer(); 4306 } 4307 } 4308 4309 /** 4310 * Start an activity in this task. Brings the task to the foreground. If this task 4311 * is not currently active (that is, its id < 0), then a new activity for the given 4312 * Intent will be launched as the root of the task and the task brought to the 4313 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4314 * an activity to launch in a new task, then a new activity for the given Intent will 4315 * be launched on top of the task and the task brought to the foreground. If this 4316 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4317 * or would otherwise be launched in to a new task, then the activity not launched but 4318 * this task be brought to the foreground and a new intent delivered to the top 4319 * activity if appropriate. 4320 * 4321 * <p>In other words, you generally want to use an Intent here that does not specify 4322 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4323 * and let the system do the right thing.</p> 4324 * 4325 * @param intent The Intent describing the new activity to be launched on the task. 4326 * @param options Optional launch options. 4327 * 4328 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4329 */ 4330 public void startActivity(Context context, Intent intent, Bundle options) { 4331 ActivityThread thread = ActivityThread.currentActivityThread(); 4332 thread.getInstrumentation().execStartActivityFromAppTask(context, 4333 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4334 } 4335 4336 /** 4337 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4338 * Intent of this AppTask. 4339 * 4340 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4341 * be set; otherwise, it will be cleared. 4342 */ 4343 public void setExcludeFromRecents(boolean exclude) { 4344 try { 4345 mAppTaskImpl.setExcludeFromRecents(exclude); 4346 } catch (RemoteException e) { 4347 throw e.rethrowFromSystemServer(); 4348 } 4349 } 4350 } 4351} 4352