ActivityManager.java revision 0ce4b0e4c31a65864e0cda3c9d3fb6fe8a40f2ed
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.IBinder; 34import android.os.ParcelFileDescriptor; 35 36import com.android.internal.app.procstats.ProcessStats; 37import com.android.internal.os.RoSystemProperties; 38import com.android.internal.os.TransferPipe; 39import com.android.internal.util.FastPrintWriter; 40import com.android.server.LocalServices; 41 42import android.content.ComponentName; 43import android.content.Context; 44import android.content.Intent; 45import android.content.UriPermission; 46import android.content.pm.ApplicationInfo; 47import android.content.pm.ConfigurationInfo; 48import android.content.pm.IPackageDataObserver; 49import android.content.pm.PackageManager; 50import android.content.pm.ParceledListSlice; 51import android.content.pm.UserInfo; 52import android.content.res.Resources; 53import android.graphics.Bitmap; 54import android.graphics.Color; 55import android.graphics.Rect; 56import android.os.Bundle; 57import android.os.Debug; 58import android.os.Handler; 59import android.os.Parcel; 60import android.os.Parcelable; 61import android.os.Process; 62import android.os.RemoteException; 63import android.os.ServiceManager; 64import android.os.SystemProperties; 65import android.os.UserHandle; 66import android.text.TextUtils; 67import android.util.ArrayMap; 68import android.util.DisplayMetrics; 69import android.util.Singleton; 70import android.util.Size; 71 72import org.xmlpull.v1.XmlSerializer; 73 74import java.io.FileDescriptor; 75import java.io.FileOutputStream; 76import java.io.IOException; 77import java.io.PrintWriter; 78import java.lang.annotation.Retention; 79import java.lang.annotation.RetentionPolicy; 80import java.util.ArrayList; 81import java.util.List; 82 83/** 84 * <p> 85 * This class gives information about, and interacts 86 * with, activities, services, and the containing 87 * process. 88 * </p> 89 * 90 * <p> 91 * A number of the methods in this class are for 92 * debugging or informational purposes and they should 93 * not be used to affect any runtime behavior of 94 * your app. These methods are called out as such in 95 * the method level documentation. 96 * </p> 97 * 98 *<p> 99 * Most application developers should not have the need to 100 * use this class, most of whose methods are for specialized 101 * use cases. However, a few methods are more broadly applicable. 102 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 103 * enables your app to detect whether it is running on a low-memory device, 104 * and behave accordingly. 105 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 106 * is for apps with reset-data functionality. 107 * </p> 108 * 109 * <p> 110 * In some special use cases, where an app interacts with 111 * its Task stack, the app may use the 112 * {@link android.app.ActivityManager.AppTask} and 113 * {@link android.app.ActivityManager.RecentTaskInfo} inner 114 * classes. However, in general, the methods in this class should 115 * be used for testing and debugging purposes only. 116 * </p> 117 */ 118public class ActivityManager { 119 private static String TAG = "ActivityManager"; 120 121 private static int gMaxRecentTasks = -1; 122 123 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 124 125 private final Context mContext; 126 127 private static volatile boolean sSystemReady = false; 128 129 /** 130 * System property to enable task snapshots. 131 * @hide 132 */ 133 public final static boolean ENABLE_TASK_SNAPSHOTS; 134 135 static { 136 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 137 } 138 139 static final class UidObserver extends IUidObserver.Stub { 140 final OnUidImportanceListener mListener; 141 142 UidObserver(OnUidImportanceListener listener) { 143 mListener = listener; 144 } 145 146 @Override 147 public void onUidStateChanged(int uid, int procState) { 148 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 149 } 150 151 @Override 152 public void onUidGone(int uid, boolean disabled) { 153 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 154 } 155 156 @Override 157 public void onUidActive(int uid) { 158 } 159 160 @Override 161 public void onUidIdle(int uid, boolean disabled) { 162 } 163 } 164 165 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 166 167 /** 168 * Defines acceptable types of bugreports. 169 * @hide 170 */ 171 @Retention(RetentionPolicy.SOURCE) 172 @IntDef({ 173 BUGREPORT_OPTION_FULL, 174 BUGREPORT_OPTION_INTERACTIVE, 175 BUGREPORT_OPTION_REMOTE, 176 BUGREPORT_OPTION_WEAR, 177 BUGREPORT_OPTION_TELEPHONY 178 }) 179 public @interface BugreportMode {} 180 /** 181 * Takes a bugreport without user interference (and hence causing less 182 * interference to the system), but includes all sections. 183 * @hide 184 */ 185 public static final int BUGREPORT_OPTION_FULL = 0; 186 /** 187 * Allows user to monitor progress and enter additional data; might not include all 188 * sections. 189 * @hide 190 */ 191 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 192 /** 193 * Takes a bugreport requested remotely by administrator of the Device Owner app, 194 * not the device's user. 195 * @hide 196 */ 197 public static final int BUGREPORT_OPTION_REMOTE = 2; 198 /** 199 * Takes a bugreport on a wearable device. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_WEAR = 3; 203 204 /** 205 * Takes a lightweight version of bugreport that only includes a few, urgent sections 206 * used to report telephony bugs. 207 * @hide 208 */ 209 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 210 211 /** 212 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 213 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 214 * uninstalled in lieu of the declaring one. The package named here must be 215 * signed with the same certificate as the one declaring the {@code <meta-data>}. 216 */ 217 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 218 219 /** 220 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 221 * @hide 222 */ 223 public static final int START_VOICE_HIDDEN_SESSION = -10; 224 225 /** 226 * Result for IActivityManager.startVoiceActivity: active session does not match 227 * the requesting token. 228 * @hide 229 */ 230 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 231 232 /** 233 * Result for IActivityManager.startActivity: trying to start a background user 234 * activity that shouldn't be displayed for all users. 235 * @hide 236 */ 237 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 238 239 /** 240 * Result for IActivityManager.startActivity: trying to start an activity under voice 241 * control when that activity does not support the VOICE category. 242 * @hide 243 */ 244 public static final int START_NOT_VOICE_COMPATIBLE = -7; 245 246 /** 247 * Result for IActivityManager.startActivity: an error where the 248 * start had to be canceled. 249 * @hide 250 */ 251 public static final int START_CANCELED = -6; 252 253 /** 254 * Result for IActivityManager.startActivity: an error where the 255 * thing being started is not an activity. 256 * @hide 257 */ 258 public static final int START_NOT_ACTIVITY = -5; 259 260 /** 261 * Result for IActivityManager.startActivity: an error where the 262 * caller does not have permission to start the activity. 263 * @hide 264 */ 265 public static final int START_PERMISSION_DENIED = -4; 266 267 /** 268 * Result for IActivityManager.startActivity: an error where the 269 * caller has requested both to forward a result and to receive 270 * a result. 271 * @hide 272 */ 273 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 274 275 /** 276 * Result for IActivityManager.startActivity: an error where the 277 * requested class is not found. 278 * @hide 279 */ 280 public static final int START_CLASS_NOT_FOUND = -2; 281 282 /** 283 * Result for IActivityManager.startActivity: an error where the 284 * given Intent could not be resolved to an activity. 285 * @hide 286 */ 287 public static final int START_INTENT_NOT_RESOLVED = -1; 288 289 /** 290 * Result for IActivityManaqer.startActivity: the activity was started 291 * successfully as normal. 292 * @hide 293 */ 294 public static final int START_SUCCESS = 0; 295 296 /** 297 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 298 * be executed if it is the recipient, and that is indeed the case. 299 * @hide 300 */ 301 public static final int START_RETURN_INTENT_TO_CALLER = 1; 302 303 /** 304 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 305 * a task was simply brought to the foreground. 306 * @hide 307 */ 308 public static final int START_TASK_TO_FRONT = 2; 309 310 /** 311 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 312 * the given Intent was given to the existing top activity. 313 * @hide 314 */ 315 public static final int START_DELIVERED_TO_TOP = 3; 316 317 /** 318 * Result for IActivityManaqer.startActivity: request was canceled because 319 * app switches are temporarily canceled to ensure the user's last request 320 * (such as pressing home) is performed. 321 * @hide 322 */ 323 public static final int START_SWITCHES_CANCELED = 4; 324 325 /** 326 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 327 * while in Lock Task Mode. 328 * @hide 329 */ 330 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 331 332 /** 333 * Flag for IActivityManaqer.startActivity: do special start mode where 334 * a new activity is launched only if it is needed. 335 * @hide 336 */ 337 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 338 339 /** 340 * Flag for IActivityManaqer.startActivity: launch the app for 341 * debugging. 342 * @hide 343 */ 344 public static final int START_FLAG_DEBUG = 1<<1; 345 346 /** 347 * Flag for IActivityManaqer.startActivity: launch the app for 348 * allocation tracking. 349 * @hide 350 */ 351 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 352 353 /** 354 * Flag for IActivityManaqer.startActivity: launch the app with 355 * native debugging support. 356 * @hide 357 */ 358 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 359 360 /** 361 * Result for IActivityManaqer.broadcastIntent: success! 362 * @hide 363 */ 364 public static final int BROADCAST_SUCCESS = 0; 365 366 /** 367 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 368 * a sticky intent without appropriate permission. 369 * @hide 370 */ 371 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 372 373 /** 374 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 375 * to a stopped user. Fail. 376 * @hide 377 */ 378 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 379 380 /** 381 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 382 * for a sendBroadcast operation. 383 * @hide 384 */ 385 public static final int INTENT_SENDER_BROADCAST = 1; 386 387 /** 388 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 389 * for a startActivity operation. 390 * @hide 391 */ 392 public static final int INTENT_SENDER_ACTIVITY = 2; 393 394 /** 395 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 396 * for an activity result operation. 397 * @hide 398 */ 399 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 400 401 /** 402 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 403 * for a startService operation. 404 * @hide 405 */ 406 public static final int INTENT_SENDER_SERVICE = 4; 407 408 /** @hide User operation call: success! */ 409 public static final int USER_OP_SUCCESS = 0; 410 411 /** @hide User operation call: given user id is not known. */ 412 public static final int USER_OP_UNKNOWN_USER = -1; 413 414 /** @hide User operation call: given user id is the current user, can't be stopped. */ 415 public static final int USER_OP_IS_CURRENT = -2; 416 417 /** @hide User operation call: system user can't be stopped. */ 418 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 419 420 /** @hide User operation call: one of related users cannot be stopped. */ 421 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 422 423 /** @hide Not a real process state. */ 424 public static final int PROCESS_STATE_UNKNOWN = -1; 425 426 /** @hide Process is a persistent system process. */ 427 public static final int PROCESS_STATE_PERSISTENT = 0; 428 429 /** @hide Process is a persistent system process and is doing UI. */ 430 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 431 432 /** @hide Process is hosting the current top activities. Note that this covers 433 * all activities that are visible to the user. */ 434 public static final int PROCESS_STATE_TOP = 2; 435 436 /** @hide Process is hosting a foreground service due to a system binding. */ 437 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 438 439 /** @hide Process is hosting a foreground service. */ 440 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 441 442 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 443 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 444 445 /** @hide Process is important to the user, and something they are aware of. */ 446 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 447 448 /** @hide Process is important to the user, but not something they are aware of. */ 449 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 450 451 /** @hide Process is in the background running a backup/restore operation. */ 452 public static final int PROCESS_STATE_BACKUP = 8; 453 454 /** @hide Process is in the background, but it can't restore its state so we want 455 * to try to avoid killing it. */ 456 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 457 458 /** @hide Process is in the background running a service. Unlike oom_adj, this level 459 * is used for both the normal running in background state and the executing 460 * operations state. */ 461 public static final int PROCESS_STATE_SERVICE = 10; 462 463 /** @hide Process is in the background running a receiver. Note that from the 464 * perspective of oom_adj receivers run at a higher foreground level, but for our 465 * prioritization here that is not necessary and putting them below services means 466 * many fewer changes in some process states as they receive broadcasts. */ 467 public static final int PROCESS_STATE_RECEIVER = 11; 468 469 /** @hide Process is in the background but hosts the home activity. */ 470 public static final int PROCESS_STATE_HOME = 12; 471 472 /** @hide Process is in the background but hosts the last shown activity. */ 473 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 474 475 /** @hide Process is being cached for later use and contains activities. */ 476 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 477 478 /** @hide Process is being cached for later use and is a client of another cached 479 * process that contains activities. */ 480 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 481 482 /** @hide Process is being cached for later use and is empty. */ 483 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 484 485 /** @hide Process does not exist. */ 486 public static final int PROCESS_STATE_NONEXISTENT = 17; 487 488 /** @hide The lowest process state number */ 489 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 490 491 /** @hide The highest process state number */ 492 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 493 494 /** @hide Should this process state be considered a background state? */ 495 public static final boolean isProcStateBackground(int procState) { 496 return procState >= PROCESS_STATE_BACKUP; 497 } 498 499 /** @hide requestType for assist context: only basic information. */ 500 public static final int ASSIST_CONTEXT_BASIC = 0; 501 502 /** @hide requestType for assist context: generate full AssistStructure. */ 503 public static final int ASSIST_CONTEXT_FULL = 1; 504 505 /** @hide requestType for assist context: generate full AssistStructure for auto-fill. */ 506 public static final int ASSIST_CONTEXT_AUTO_FILL = 2; 507 508 /** @hide requestType for assist context: generate full AssistStructure for auto-fill save. */ 509 public static final int ASSIST_CONTEXT_AUTO_FILL_SAVE = 3; 510 511 /** @hide Flag for registerUidObserver: report changes in process state. */ 512 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 513 514 /** @hide Flag for registerUidObserver: report uid gone. */ 515 public static final int UID_OBSERVER_GONE = 1<<1; 516 517 /** @hide Flag for registerUidObserver: report uid has become idle. */ 518 public static final int UID_OBSERVER_IDLE = 1<<2; 519 520 /** @hide Flag for registerUidObserver: report uid has become active. */ 521 public static final int UID_OBSERVER_ACTIVE = 1<<3; 522 523 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 524 public static final int APP_START_MODE_NORMAL = 0; 525 526 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 527 public static final int APP_START_MODE_DELAYED = 1; 528 529 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 530 * rigid errors (throwing exception). */ 531 public static final int APP_START_MODE_DELAYED_RIGID = 2; 532 533 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 534 * launches; this is the mode for ephemeral apps. */ 535 public static final int APP_START_MODE_DISABLED = 3; 536 537 /** 538 * Lock task mode is not active. 539 */ 540 public static final int LOCK_TASK_MODE_NONE = 0; 541 542 /** 543 * Full lock task mode is active. 544 */ 545 public static final int LOCK_TASK_MODE_LOCKED = 1; 546 547 /** 548 * App pinning mode is active. 549 */ 550 public static final int LOCK_TASK_MODE_PINNED = 2; 551 552 Point mAppTaskThumbnailSize; 553 554 /*package*/ ActivityManager(Context context, Handler handler) { 555 mContext = context; 556 } 557 558 /** 559 * Screen compatibility mode: the application most always run in 560 * compatibility mode. 561 * @hide 562 */ 563 public static final int COMPAT_MODE_ALWAYS = -1; 564 565 /** 566 * Screen compatibility mode: the application can never run in 567 * compatibility mode. 568 * @hide 569 */ 570 public static final int COMPAT_MODE_NEVER = -2; 571 572 /** 573 * Screen compatibility mode: unknown. 574 * @hide 575 */ 576 public static final int COMPAT_MODE_UNKNOWN = -3; 577 578 /** 579 * Screen compatibility mode: the application currently has compatibility 580 * mode disabled. 581 * @hide 582 */ 583 public static final int COMPAT_MODE_DISABLED = 0; 584 585 /** 586 * Screen compatibility mode: the application currently has compatibility 587 * mode enabled. 588 * @hide 589 */ 590 public static final int COMPAT_MODE_ENABLED = 1; 591 592 /** 593 * Screen compatibility mode: request to toggle the application's 594 * compatibility mode. 595 * @hide 596 */ 597 public static final int COMPAT_MODE_TOGGLE = 2; 598 599 /** @hide */ 600 public static class StackId { 601 /** Invalid stack ID. */ 602 public static final int INVALID_STACK_ID = -1; 603 604 /** First static stack ID. */ 605 public static final int FIRST_STATIC_STACK_ID = 0; 606 607 /** Home activity stack ID. */ 608 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 609 610 /** ID of stack where fullscreen activities are normally launched into. */ 611 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 612 613 /** ID of stack where freeform/resized activities are normally launched into. */ 614 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 615 616 /** ID of stack that occupies a dedicated region of the screen. */ 617 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 618 619 /** ID of stack that always on top (always visible) when it exist. */ 620 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 621 622 /** Recents activity stack ID. */ 623 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 624 625 /** Last static stack stack ID. */ 626 public static final int LAST_STATIC_STACK_ID = RECENTS_STACK_ID; 627 628 /** Start of ID range used by stacks that are created dynamically. */ 629 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 630 631 public static boolean isStaticStack(int stackId) { 632 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 633 } 634 635 public static boolean isDynamicStack(int stackId) { 636 return stackId >= FIRST_DYNAMIC_STACK_ID; 637 } 638 639 /** 640 * Returns true if the activities contained in the input stack display a shadow around 641 * their border. 642 */ 643 public static boolean hasWindowShadow(int stackId) { 644 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 645 } 646 647 /** 648 * Returns true if the activities contained in the input stack display a decor view. 649 */ 650 public static boolean hasWindowDecor(int stackId) { 651 return stackId == FREEFORM_WORKSPACE_STACK_ID; 652 } 653 654 /** 655 * Returns true if the tasks contained in the stack can be resized independently of the 656 * stack. 657 */ 658 public static boolean isTaskResizeAllowed(int stackId) { 659 return stackId == FREEFORM_WORKSPACE_STACK_ID; 660 } 661 662 /** Returns true if the task bounds should persist across power cycles. */ 663 public static boolean persistTaskBounds(int stackId) { 664 return stackId == FREEFORM_WORKSPACE_STACK_ID; 665 } 666 667 /** 668 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 669 */ 670 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 671 return stackId == PINNED_STACK_ID; 672 } 673 674 /** 675 * Returns true if we try to maintain focus in the current stack when the top activity 676 * finishes. 677 */ 678 public static boolean keepFocusInStackIfPossible(int stackId) { 679 return stackId == FREEFORM_WORKSPACE_STACK_ID 680 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 681 } 682 683 /** 684 * Returns true if Stack size is affected by the docked stack changing size. 685 */ 686 public static boolean isResizeableByDockedStack(int stackId) { 687 return isStaticStack(stackId) && 688 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 689 } 690 691 /** 692 * Returns true if the size of tasks in the input stack are affected by the docked stack 693 * changing size. 694 */ 695 public static boolean isTaskResizeableByDockedStack(int stackId) { 696 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 697 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 698 } 699 700 /** 701 * Returns true if the input stack is affected by drag resizing. 702 */ 703 public static boolean isStackAffectedByDragResizing(int stackId) { 704 return isStaticStack(stackId) && stackId != PINNED_STACK_ID; 705 } 706 707 /** 708 * Returns true if the windows of tasks being moved to the target stack from the source 709 * stack should be replaced, meaning that window manager will keep the old window around 710 * until the new is ready. 711 */ 712 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 713 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 714 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 715 } 716 717 /** 718 * Return whether a stackId is a stack containing floating windows. Floating windows 719 * are laid out differently as they are allowed to extend past the display bounds 720 * without overscan insets. 721 */ 722 public static boolean tasksAreFloating(int stackId) { 723 return stackId == FREEFORM_WORKSPACE_STACK_ID 724 || stackId == PINNED_STACK_ID; 725 } 726 727 /** 728 * Returns true if animation specs should be constructed for app transition that moves 729 * the task to the specified stack. 730 */ 731 public static boolean useAnimationSpecForAppTransition(int stackId) { 732 733 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 734 // reboots. 735 return stackId == FREEFORM_WORKSPACE_STACK_ID 736 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 737 || stackId == INVALID_STACK_ID; 738 } 739 740 /** Returns true if the windows in the stack can receive input keys. */ 741 public static boolean canReceiveKeys(int stackId) { 742 return stackId != PINNED_STACK_ID; 743 } 744 745 /** 746 * Returns true if the stack can be visible above lockscreen. 747 */ 748 public static boolean isAllowedOverLockscreen(int stackId) { 749 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 750 } 751 752 public static boolean isAlwaysOnTop(int stackId) { 753 return stackId == PINNED_STACK_ID; 754 } 755 756 /** 757 * Returns true if the top task in the task is allowed to return home when finished and 758 * there are other tasks in the stack. 759 */ 760 public static boolean allowTopTaskToReturnHome(int stackId) { 761 return stackId != PINNED_STACK_ID; 762 } 763 764 /** 765 * Returns true if the stack should be resized to match the bounds specified by 766 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 767 */ 768 public static boolean resizeStackWithLaunchBounds(int stackId) { 769 return stackId == PINNED_STACK_ID; 770 } 771 772 /** 773 * Returns true if any visible windows belonging to apps in this stack should be kept on 774 * screen when the app is killed due to something like the low memory killer. 775 */ 776 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 777 return stackId != PINNED_STACK_ID; 778 } 779 780 /** 781 * Returns true if the backdrop on the client side should match the frame of the window. 782 * Returns false, if the backdrop should be fullscreen. 783 */ 784 public static boolean useWindowFrameForBackdrop(int stackId) { 785 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 786 } 787 788 /** 789 * Returns true if a window from the specified stack with {@param stackId} are normally 790 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 791 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 792 * etc. 793 */ 794 public static boolean normallyFullscreenWindows(int stackId) { 795 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 796 && stackId != DOCKED_STACK_ID; 797 } 798 799 /** 800 * Returns true if the input stack id should only be present on a device that supports 801 * multi-window mode. 802 * @see android.app.ActivityManager#supportsMultiWindow 803 */ 804 public static boolean isMultiWindowStack(int stackId) { 805 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 806 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 807 } 808 809 /** 810 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 811 */ 812 public static boolean isHomeOrRecentsStack(int stackId) { 813 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 814 } 815 816 /** 817 * Returns true if activities contained in this stack can request visible behind by 818 * calling {@link Activity#requestVisibleBehind}. 819 */ 820 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 821 return stackId == FULLSCREEN_WORKSPACE_STACK_ID; 822 } 823 824 /** 825 * Returns true if this stack may be scaled without resizing, 826 * and windows within may need to be configured as such. 827 */ 828 public static boolean windowsAreScaleable(int stackId) { 829 return stackId == PINNED_STACK_ID; 830 } 831 832 /** 833 * Returns true if windows in this stack should be given move animations 834 * by default. 835 */ 836 public static boolean hasMovementAnimations(int stackId) { 837 return stackId != PINNED_STACK_ID; 838 } 839 840 /** Returns true if the input stack and its content can affect the device orientation. */ 841 public static boolean canSpecifyOrientation(int stackId) { 842 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID 843 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || isDynamicStack(stackId); 844 } 845 } 846 847 /** 848 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 849 * specifies the position of the created docked stack at the top half of the screen if 850 * in portrait mode or at the left half of the screen if in landscape mode. 851 * @hide 852 */ 853 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 854 855 /** 856 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 857 * specifies the position of the created docked stack at the bottom half of the screen if 858 * in portrait mode or at the right half of the screen if in landscape mode. 859 * @hide 860 */ 861 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 862 863 /** 864 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 865 * that the resize doesn't need to preserve the window, and can be skipped if bounds 866 * is unchanged. This mode is used by window manager in most cases. 867 * @hide 868 */ 869 public static final int RESIZE_MODE_SYSTEM = 0; 870 871 /** 872 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 873 * that the resize should preserve the window if possible. 874 * @hide 875 */ 876 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 877 878 /** 879 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 880 * that the resize should be performed even if the bounds appears unchanged. 881 * @hide 882 */ 883 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 884 885 /** 886 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 887 * manager during a screen rotation. 888 * @hide 889 */ 890 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 891 892 /** 893 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 894 * resize is due to a drag action. 895 * @hide 896 */ 897 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 898 899 /** 900 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 901 * that the resize should preserve the window if possible, and should not be skipped 902 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 903 * is ending. 904 * @hide 905 */ 906 public static final int RESIZE_MODE_USER_FORCED = 907 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 908 909 /** @hide */ 910 public int getFrontActivityScreenCompatMode() { 911 try { 912 return getService().getFrontActivityScreenCompatMode(); 913 } catch (RemoteException e) { 914 throw e.rethrowFromSystemServer(); 915 } 916 } 917 918 /** @hide */ 919 public void setFrontActivityScreenCompatMode(int mode) { 920 try { 921 getService().setFrontActivityScreenCompatMode(mode); 922 } catch (RemoteException e) { 923 throw e.rethrowFromSystemServer(); 924 } 925 } 926 927 /** @hide */ 928 public int getPackageScreenCompatMode(String packageName) { 929 try { 930 return getService().getPackageScreenCompatMode(packageName); 931 } catch (RemoteException e) { 932 throw e.rethrowFromSystemServer(); 933 } 934 } 935 936 /** @hide */ 937 public void setPackageScreenCompatMode(String packageName, int mode) { 938 try { 939 getService().setPackageScreenCompatMode(packageName, mode); 940 } catch (RemoteException e) { 941 throw e.rethrowFromSystemServer(); 942 } 943 } 944 945 /** @hide */ 946 public boolean getPackageAskScreenCompat(String packageName) { 947 try { 948 return getService().getPackageAskScreenCompat(packageName); 949 } catch (RemoteException e) { 950 throw e.rethrowFromSystemServer(); 951 } 952 } 953 954 /** @hide */ 955 public void setPackageAskScreenCompat(String packageName, boolean ask) { 956 try { 957 getService().setPackageAskScreenCompat(packageName, ask); 958 } catch (RemoteException e) { 959 throw e.rethrowFromSystemServer(); 960 } 961 } 962 963 /** 964 * Return the approximate per-application memory class of the current 965 * device. This gives you an idea of how hard a memory limit you should 966 * impose on your application to let the overall system work best. The 967 * returned value is in megabytes; the baseline Android memory class is 968 * 16 (which happens to be the Java heap limit of those devices); some 969 * device with more memory may return 24 or even higher numbers. 970 */ 971 public int getMemoryClass() { 972 return staticGetMemoryClass(); 973 } 974 975 /** @hide */ 976 static public int staticGetMemoryClass() { 977 // Really brain dead right now -- just take this from the configured 978 // vm heap size, and assume it is in megabytes and thus ends with "m". 979 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 980 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 981 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 982 } 983 return staticGetLargeMemoryClass(); 984 } 985 986 /** 987 * Return the approximate per-application memory class of the current 988 * device when an application is running with a large heap. This is the 989 * space available for memory-intensive applications; most applications 990 * should not need this amount of memory, and should instead stay with the 991 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 992 * This may be the same size as {@link #getMemoryClass()} on memory 993 * constrained devices, or it may be significantly larger on devices with 994 * a large amount of available RAM. 995 * 996 * <p>The is the size of the application's Dalvik heap if it has 997 * specified <code>android:largeHeap="true"</code> in its manifest. 998 */ 999 public int getLargeMemoryClass() { 1000 return staticGetLargeMemoryClass(); 1001 } 1002 1003 /** @hide */ 1004 static public int staticGetLargeMemoryClass() { 1005 // Really brain dead right now -- just take this from the configured 1006 // vm heap size, and assume it is in megabytes and thus ends with "m". 1007 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1008 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1009 } 1010 1011 /** 1012 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1013 * is ultimately up to the device configuration, but currently it generally means 1014 * something in the class of a 512MB device with about a 800x480 or less screen. 1015 * This is mostly intended to be used by apps to determine whether they should turn 1016 * off certain features that require more RAM. 1017 */ 1018 public boolean isLowRamDevice() { 1019 return isLowRamDeviceStatic(); 1020 } 1021 1022 /** @hide */ 1023 public static boolean isLowRamDeviceStatic() { 1024 return RoSystemProperties.CONFIG_LOW_RAM; 1025 } 1026 1027 /** 1028 * Used by persistent processes to determine if they are running on a 1029 * higher-end device so should be okay using hardware drawing acceleration 1030 * (which tends to consume a lot more RAM). 1031 * @hide 1032 */ 1033 static public boolean isHighEndGfx() { 1034 return !isLowRamDeviceStatic() && 1035 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1036 } 1037 1038 /** 1039 * Return the maximum number of recents entries that we will maintain and show. 1040 * @hide 1041 */ 1042 static public int getMaxRecentTasksStatic() { 1043 if (gMaxRecentTasks < 0) { 1044 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1045 } 1046 return gMaxRecentTasks; 1047 } 1048 1049 /** 1050 * Return the default limit on the number of recents that an app can make. 1051 * @hide 1052 */ 1053 static public int getDefaultAppRecentsLimitStatic() { 1054 return getMaxRecentTasksStatic() / 6; 1055 } 1056 1057 /** 1058 * Return the maximum limit on the number of recents that an app can make. 1059 * @hide 1060 */ 1061 static public int getMaxAppRecentsLimitStatic() { 1062 return getMaxRecentTasksStatic() / 2; 1063 } 1064 1065 /** 1066 * Returns true if the system supports at least one form of multi-window. 1067 * E.g. freeform, split-screen, picture-in-picture. 1068 * @hide 1069 */ 1070 static public boolean supportsMultiWindow() { 1071 return !isLowRamDeviceStatic() 1072 && Resources.getSystem().getBoolean( 1073 com.android.internal.R.bool.config_supportsMultiWindow); 1074 } 1075 1076 /** 1077 * Returns true if the system supports split screen multi-window. 1078 * @hide 1079 */ 1080 static public boolean supportsSplitScreenMultiWindow() { 1081 return supportsMultiWindow() 1082 && Resources.getSystem().getBoolean( 1083 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1084 } 1085 1086 /** 1087 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1088 * the user interacts with the activity currently in picture-in-picture mode. 1089 */ 1090 public static int getMaxNumPictureInPictureActions() { 1091 return NUM_ALLOWED_PIP_ACTIONS; 1092 } 1093 1094 /** 1095 * Information you can set and retrieve about the current activity within the recent task list. 1096 */ 1097 public static class TaskDescription implements Parcelable { 1098 /** @hide */ 1099 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1100 private static final String ATTR_TASKDESCRIPTIONLABEL = 1101 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1102 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1103 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1104 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1105 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1106 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1107 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1108 1109 private String mLabel; 1110 private Bitmap mIcon; 1111 private String mIconFilename; 1112 private int mColorPrimary; 1113 private int mColorBackground; 1114 1115 /** 1116 * Creates the TaskDescription to the specified values. 1117 * 1118 * @param label A label and description of the current state of this task. 1119 * @param icon An icon that represents the current state of this task. 1120 * @param colorPrimary A color to override the theme's primary color. This color must be 1121 * opaque. 1122 */ 1123 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1124 this(label, icon, null, colorPrimary, 0); 1125 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1126 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1127 } 1128 } 1129 1130 /** 1131 * Creates the TaskDescription to the specified values. 1132 * 1133 * @param label A label and description of the current state of this activity. 1134 * @param icon An icon that represents the current state of this activity. 1135 */ 1136 public TaskDescription(String label, Bitmap icon) { 1137 this(label, icon, null, 0, 0); 1138 } 1139 1140 /** 1141 * Creates the TaskDescription to the specified values. 1142 * 1143 * @param label A label and description of the current state of this activity. 1144 */ 1145 public TaskDescription(String label) { 1146 this(label, null, null, 0, 0); 1147 } 1148 1149 /** 1150 * Creates an empty TaskDescription. 1151 */ 1152 public TaskDescription() { 1153 this(null, null, null, 0, 0); 1154 } 1155 1156 /** @hide */ 1157 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1158 int colorBackground) { 1159 mLabel = label; 1160 mIcon = icon; 1161 mIconFilename = iconFilename; 1162 mColorPrimary = colorPrimary; 1163 mColorBackground = colorBackground; 1164 } 1165 1166 /** 1167 * Creates a copy of another TaskDescription. 1168 */ 1169 public TaskDescription(TaskDescription td) { 1170 copyFrom(td); 1171 } 1172 1173 /** 1174 * Copies this the values from another TaskDescription. 1175 * @hide 1176 */ 1177 public void copyFrom(TaskDescription other) { 1178 mLabel = other.mLabel; 1179 mIcon = other.mIcon; 1180 mIconFilename = other.mIconFilename; 1181 mColorPrimary = other.mColorPrimary; 1182 mColorBackground = other.mColorBackground; 1183 } 1184 1185 private TaskDescription(Parcel source) { 1186 readFromParcel(source); 1187 } 1188 1189 /** 1190 * Sets the label for this task description. 1191 * @hide 1192 */ 1193 public void setLabel(String label) { 1194 mLabel = label; 1195 } 1196 1197 /** 1198 * Sets the primary color for this task description. 1199 * @hide 1200 */ 1201 public void setPrimaryColor(int primaryColor) { 1202 // Ensure that the given color is valid 1203 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1204 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1205 } 1206 mColorPrimary = primaryColor; 1207 } 1208 1209 /** 1210 * Sets the background color for this task description. 1211 * @hide 1212 */ 1213 public void setBackgroundColor(int backgroundColor) { 1214 // Ensure that the given color is valid 1215 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1216 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1217 } 1218 mColorBackground = backgroundColor; 1219 } 1220 1221 /** 1222 * Sets the icon for this task description. 1223 * @hide 1224 */ 1225 public void setIcon(Bitmap icon) { 1226 mIcon = icon; 1227 } 1228 1229 /** 1230 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1231 * bitmap. 1232 * @hide 1233 */ 1234 public void setIconFilename(String iconFilename) { 1235 mIconFilename = iconFilename; 1236 mIcon = null; 1237 } 1238 1239 /** 1240 * @return The label and description of the current state of this task. 1241 */ 1242 public String getLabel() { 1243 return mLabel; 1244 } 1245 1246 /** 1247 * @return The icon that represents the current state of this task. 1248 */ 1249 public Bitmap getIcon() { 1250 if (mIcon != null) { 1251 return mIcon; 1252 } 1253 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1254 } 1255 1256 /** @hide */ 1257 public String getIconFilename() { 1258 return mIconFilename; 1259 } 1260 1261 /** @hide */ 1262 public Bitmap getInMemoryIcon() { 1263 return mIcon; 1264 } 1265 1266 /** @hide */ 1267 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1268 if (iconFilename != null) { 1269 try { 1270 return getService().getTaskDescriptionIcon(iconFilename, 1271 userId); 1272 } catch (RemoteException e) { 1273 throw e.rethrowFromSystemServer(); 1274 } 1275 } 1276 return null; 1277 } 1278 1279 /** 1280 * @return The color override on the theme's primary color. 1281 */ 1282 public int getPrimaryColor() { 1283 return mColorPrimary; 1284 } 1285 1286 /** 1287 * @return The background color. 1288 * @hide 1289 */ 1290 public int getBackgroundColor() { 1291 return mColorBackground; 1292 } 1293 1294 /** @hide */ 1295 public void saveToXml(XmlSerializer out) throws IOException { 1296 if (mLabel != null) { 1297 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1298 } 1299 if (mColorPrimary != 0) { 1300 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1301 Integer.toHexString(mColorPrimary)); 1302 } 1303 if (mColorBackground != 0) { 1304 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1305 Integer.toHexString(mColorBackground)); 1306 } 1307 if (mIconFilename != null) { 1308 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1309 } 1310 } 1311 1312 /** @hide */ 1313 public void restoreFromXml(String attrName, String attrValue) { 1314 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1315 setLabel(attrValue); 1316 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1317 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1318 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1319 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1320 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1321 setIconFilename(attrValue); 1322 } 1323 } 1324 1325 @Override 1326 public int describeContents() { 1327 return 0; 1328 } 1329 1330 @Override 1331 public void writeToParcel(Parcel dest, int flags) { 1332 if (mLabel == null) { 1333 dest.writeInt(0); 1334 } else { 1335 dest.writeInt(1); 1336 dest.writeString(mLabel); 1337 } 1338 if (mIcon == null) { 1339 dest.writeInt(0); 1340 } else { 1341 dest.writeInt(1); 1342 mIcon.writeToParcel(dest, 0); 1343 } 1344 dest.writeInt(mColorPrimary); 1345 dest.writeInt(mColorBackground); 1346 if (mIconFilename == null) { 1347 dest.writeInt(0); 1348 } else { 1349 dest.writeInt(1); 1350 dest.writeString(mIconFilename); 1351 } 1352 } 1353 1354 public void readFromParcel(Parcel source) { 1355 mLabel = source.readInt() > 0 ? source.readString() : null; 1356 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1357 mColorPrimary = source.readInt(); 1358 mColorBackground = source.readInt(); 1359 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1360 } 1361 1362 public static final Creator<TaskDescription> CREATOR 1363 = new Creator<TaskDescription>() { 1364 public TaskDescription createFromParcel(Parcel source) { 1365 return new TaskDescription(source); 1366 } 1367 public TaskDescription[] newArray(int size) { 1368 return new TaskDescription[size]; 1369 } 1370 }; 1371 1372 @Override 1373 public String toString() { 1374 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1375 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1376 " colorBackground: " + mColorBackground; 1377 } 1378 } 1379 1380 /** 1381 * Information you can retrieve about tasks that the user has most recently 1382 * started or visited. 1383 */ 1384 public static class RecentTaskInfo implements Parcelable { 1385 /** 1386 * If this task is currently running, this is the identifier for it. 1387 * If it is not running, this will be -1. 1388 */ 1389 public int id; 1390 1391 /** 1392 * The true identifier of this task, valid even if it is not running. 1393 */ 1394 public int persistentId; 1395 1396 /** 1397 * The original Intent used to launch the task. You can use this 1398 * Intent to re-launch the task (if it is no longer running) or bring 1399 * the current task to the front. 1400 */ 1401 public Intent baseIntent; 1402 1403 /** 1404 * If this task was started from an alias, this is the actual 1405 * activity component that was initially started; the component of 1406 * the baseIntent in this case is the name of the actual activity 1407 * implementation that the alias referred to. Otherwise, this is null. 1408 */ 1409 public ComponentName origActivity; 1410 1411 /** 1412 * The actual activity component that started the task. 1413 * @hide 1414 */ 1415 @Nullable 1416 public ComponentName realActivity; 1417 1418 /** 1419 * Description of the task's last state. 1420 */ 1421 public CharSequence description; 1422 1423 /** 1424 * The id of the ActivityStack this Task was on most recently. 1425 * @hide 1426 */ 1427 public int stackId; 1428 1429 /** 1430 * The id of the user the task was running as. 1431 * @hide 1432 */ 1433 public int userId; 1434 1435 /** 1436 * The first time this task was active. 1437 * @hide 1438 */ 1439 public long firstActiveTime; 1440 1441 /** 1442 * The last time this task was active. 1443 * @hide 1444 */ 1445 public long lastActiveTime; 1446 1447 /** 1448 * The recent activity values for the highest activity in the stack to have set the values. 1449 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1450 */ 1451 public TaskDescription taskDescription; 1452 1453 /** 1454 * Task affiliation for grouping with other tasks. 1455 */ 1456 public int affiliatedTaskId; 1457 1458 /** 1459 * Task affiliation color of the source task with the affiliated task id. 1460 * 1461 * @hide 1462 */ 1463 public int affiliatedTaskColor; 1464 1465 /** 1466 * The component launched as the first activity in the task. 1467 * This can be considered the "application" of this task. 1468 */ 1469 public ComponentName baseActivity; 1470 1471 /** 1472 * The activity component at the top of the history stack of the task. 1473 * This is what the user is currently doing. 1474 */ 1475 public ComponentName topActivity; 1476 1477 /** 1478 * Number of activities in this task. 1479 */ 1480 public int numActivities; 1481 1482 /** 1483 * The bounds of the task. 1484 * @hide 1485 */ 1486 public Rect bounds; 1487 1488 /** 1489 * True if the task can go in the docked stack. 1490 * @hide 1491 */ 1492 public boolean supportsSplitScreenMultiWindow; 1493 1494 /** 1495 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1496 * @hide 1497 */ 1498 public int resizeMode; 1499 1500 public RecentTaskInfo() { 1501 } 1502 1503 @Override 1504 public int describeContents() { 1505 return 0; 1506 } 1507 1508 @Override 1509 public void writeToParcel(Parcel dest, int flags) { 1510 dest.writeInt(id); 1511 dest.writeInt(persistentId); 1512 if (baseIntent != null) { 1513 dest.writeInt(1); 1514 baseIntent.writeToParcel(dest, 0); 1515 } else { 1516 dest.writeInt(0); 1517 } 1518 ComponentName.writeToParcel(origActivity, dest); 1519 ComponentName.writeToParcel(realActivity, dest); 1520 TextUtils.writeToParcel(description, dest, 1521 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1522 if (taskDescription != null) { 1523 dest.writeInt(1); 1524 taskDescription.writeToParcel(dest, 0); 1525 } else { 1526 dest.writeInt(0); 1527 } 1528 dest.writeInt(stackId); 1529 dest.writeInt(userId); 1530 dest.writeLong(firstActiveTime); 1531 dest.writeLong(lastActiveTime); 1532 dest.writeInt(affiliatedTaskId); 1533 dest.writeInt(affiliatedTaskColor); 1534 ComponentName.writeToParcel(baseActivity, dest); 1535 ComponentName.writeToParcel(topActivity, dest); 1536 dest.writeInt(numActivities); 1537 if (bounds != null) { 1538 dest.writeInt(1); 1539 bounds.writeToParcel(dest, 0); 1540 } else { 1541 dest.writeInt(0); 1542 } 1543 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1544 dest.writeInt(resizeMode); 1545 } 1546 1547 public void readFromParcel(Parcel source) { 1548 id = source.readInt(); 1549 persistentId = source.readInt(); 1550 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1551 origActivity = ComponentName.readFromParcel(source); 1552 realActivity = ComponentName.readFromParcel(source); 1553 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1554 taskDescription = source.readInt() > 0 ? 1555 TaskDescription.CREATOR.createFromParcel(source) : null; 1556 stackId = source.readInt(); 1557 userId = source.readInt(); 1558 firstActiveTime = source.readLong(); 1559 lastActiveTime = source.readLong(); 1560 affiliatedTaskId = source.readInt(); 1561 affiliatedTaskColor = source.readInt(); 1562 baseActivity = ComponentName.readFromParcel(source); 1563 topActivity = ComponentName.readFromParcel(source); 1564 numActivities = source.readInt(); 1565 bounds = source.readInt() > 0 ? 1566 Rect.CREATOR.createFromParcel(source) : null; 1567 supportsSplitScreenMultiWindow = source.readInt() == 1; 1568 resizeMode = source.readInt(); 1569 } 1570 1571 public static final Creator<RecentTaskInfo> CREATOR 1572 = new Creator<RecentTaskInfo>() { 1573 public RecentTaskInfo createFromParcel(Parcel source) { 1574 return new RecentTaskInfo(source); 1575 } 1576 public RecentTaskInfo[] newArray(int size) { 1577 return new RecentTaskInfo[size]; 1578 } 1579 }; 1580 1581 private RecentTaskInfo(Parcel source) { 1582 readFromParcel(source); 1583 } 1584 } 1585 1586 /** 1587 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1588 * that have set their 1589 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1590 */ 1591 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1592 1593 /** 1594 * Provides a list that does not contain any 1595 * recent tasks that currently are not available to the user. 1596 */ 1597 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1598 1599 /** 1600 * Provides a list that contains recent tasks for all 1601 * profiles of a user. 1602 * @hide 1603 */ 1604 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1605 1606 /** 1607 * Ignores all tasks that are on the home stack. 1608 * @hide 1609 */ 1610 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1611 1612 /** 1613 * Ignores the top task in the docked stack. 1614 * @hide 1615 */ 1616 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1617 1618 /** 1619 * Ignores all tasks that are on the pinned stack. 1620 * @hide 1621 */ 1622 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1623 1624 /** 1625 * <p></p>Return a list of the tasks that the user has recently launched, with 1626 * the most recent being first and older ones after in order. 1627 * 1628 * <p><b>Note: this method is only intended for debugging and presenting 1629 * task management user interfaces</b>. This should never be used for 1630 * core logic in an application, such as deciding between different 1631 * behaviors based on the information found here. Such uses are 1632 * <em>not</em> supported, and will likely break in the future. For 1633 * example, if multiple applications can be actively running at the 1634 * same time, assumptions made about the meaning of the data here for 1635 * purposes of control flow will be incorrect.</p> 1636 * 1637 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1638 * no longer available to third party applications: the introduction of 1639 * document-centric recents means 1640 * it can leak personal information to the caller. For backwards compatibility, 1641 * it will still return a small subset of its data: at least the caller's 1642 * own tasks (though see {@link #getAppTasks()} for the correct supported 1643 * way to retrieve that information), and possibly some other tasks 1644 * such as home that are known to not be sensitive. 1645 * 1646 * @param maxNum The maximum number of entries to return in the list. The 1647 * actual number returned may be smaller, depending on how many tasks the 1648 * user has started and the maximum number the system can remember. 1649 * @param flags Information about what to return. May be any combination 1650 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1651 * 1652 * @return Returns a list of RecentTaskInfo records describing each of 1653 * the recent tasks. 1654 */ 1655 @Deprecated 1656 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1657 throws SecurityException { 1658 try { 1659 return getService().getRecentTasks(maxNum, 1660 flags, UserHandle.myUserId()).getList(); 1661 } catch (RemoteException e) { 1662 throw e.rethrowFromSystemServer(); 1663 } 1664 } 1665 1666 /** 1667 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1668 * specific user. It requires holding 1669 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1670 * @param maxNum The maximum number of entries to return in the list. The 1671 * actual number returned may be smaller, depending on how many tasks the 1672 * user has started and the maximum number the system can remember. 1673 * @param flags Information about what to return. May be any combination 1674 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1675 * 1676 * @return Returns a list of RecentTaskInfo records describing each of 1677 * the recent tasks. Most recently activated tasks go first. 1678 * 1679 * @hide 1680 */ 1681 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1682 throws SecurityException { 1683 try { 1684 return getService().getRecentTasks(maxNum, 1685 flags, userId).getList(); 1686 } catch (RemoteException e) { 1687 throw e.rethrowFromSystemServer(); 1688 } 1689 } 1690 1691 /** 1692 * Information you can retrieve about a particular task that is currently 1693 * "running" in the system. Note that a running task does not mean the 1694 * given task actually has a process it is actively running in; it simply 1695 * means that the user has gone to it and never closed it, but currently 1696 * the system may have killed its process and is only holding on to its 1697 * last state in order to restart it when the user returns. 1698 */ 1699 public static class RunningTaskInfo implements Parcelable { 1700 /** 1701 * A unique identifier for this task. 1702 */ 1703 public int id; 1704 1705 /** 1706 * The stack that currently contains this task. 1707 * @hide 1708 */ 1709 public int stackId; 1710 1711 /** 1712 * The component launched as the first activity in the task. This can 1713 * be considered the "application" of this task. 1714 */ 1715 public ComponentName baseActivity; 1716 1717 /** 1718 * The activity component at the top of the history stack of the task. 1719 * This is what the user is currently doing. 1720 */ 1721 public ComponentName topActivity; 1722 1723 /** 1724 * Thumbnail representation of the task's current state. Currently 1725 * always null. 1726 */ 1727 public Bitmap thumbnail; 1728 1729 /** 1730 * Description of the task's current state. 1731 */ 1732 public CharSequence description; 1733 1734 /** 1735 * Number of activities in this task. 1736 */ 1737 public int numActivities; 1738 1739 /** 1740 * Number of activities that are currently running (not stopped 1741 * and persisted) in this task. 1742 */ 1743 public int numRunning; 1744 1745 /** 1746 * Last time task was run. For sorting. 1747 * @hide 1748 */ 1749 public long lastActiveTime; 1750 1751 /** 1752 * True if the task can go in the docked stack. 1753 * @hide 1754 */ 1755 public boolean supportsSplitScreenMultiWindow; 1756 1757 /** 1758 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1759 * @hide 1760 */ 1761 public int resizeMode; 1762 1763 public RunningTaskInfo() { 1764 } 1765 1766 public int describeContents() { 1767 return 0; 1768 } 1769 1770 public void writeToParcel(Parcel dest, int flags) { 1771 dest.writeInt(id); 1772 dest.writeInt(stackId); 1773 ComponentName.writeToParcel(baseActivity, dest); 1774 ComponentName.writeToParcel(topActivity, dest); 1775 if (thumbnail != null) { 1776 dest.writeInt(1); 1777 thumbnail.writeToParcel(dest, 0); 1778 } else { 1779 dest.writeInt(0); 1780 } 1781 TextUtils.writeToParcel(description, dest, 1782 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1783 dest.writeInt(numActivities); 1784 dest.writeInt(numRunning); 1785 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1786 dest.writeInt(resizeMode); 1787 } 1788 1789 public void readFromParcel(Parcel source) { 1790 id = source.readInt(); 1791 stackId = source.readInt(); 1792 baseActivity = ComponentName.readFromParcel(source); 1793 topActivity = ComponentName.readFromParcel(source); 1794 if (source.readInt() != 0) { 1795 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1796 } else { 1797 thumbnail = null; 1798 } 1799 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1800 numActivities = source.readInt(); 1801 numRunning = source.readInt(); 1802 supportsSplitScreenMultiWindow = source.readInt() != 0; 1803 resizeMode = source.readInt(); 1804 } 1805 1806 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1807 public RunningTaskInfo createFromParcel(Parcel source) { 1808 return new RunningTaskInfo(source); 1809 } 1810 public RunningTaskInfo[] newArray(int size) { 1811 return new RunningTaskInfo[size]; 1812 } 1813 }; 1814 1815 private RunningTaskInfo(Parcel source) { 1816 readFromParcel(source); 1817 } 1818 } 1819 1820 /** 1821 * Get the list of tasks associated with the calling application. 1822 * 1823 * @return The list of tasks associated with the application making this call. 1824 * @throws SecurityException 1825 */ 1826 public List<ActivityManager.AppTask> getAppTasks() { 1827 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1828 List<IBinder> appTasks; 1829 try { 1830 appTasks = getService().getAppTasks(mContext.getPackageName()); 1831 } catch (RemoteException e) { 1832 throw e.rethrowFromSystemServer(); 1833 } 1834 int numAppTasks = appTasks.size(); 1835 for (int i = 0; i < numAppTasks; i++) { 1836 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1837 } 1838 return tasks; 1839 } 1840 1841 /** 1842 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1843 * with {@link #addAppTask}. 1844 */ 1845 public Size getAppTaskThumbnailSize() { 1846 synchronized (this) { 1847 ensureAppTaskThumbnailSizeLocked(); 1848 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1849 } 1850 } 1851 1852 private void ensureAppTaskThumbnailSizeLocked() { 1853 if (mAppTaskThumbnailSize == null) { 1854 try { 1855 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1856 } catch (RemoteException e) { 1857 throw e.rethrowFromSystemServer(); 1858 } 1859 } 1860 } 1861 1862 /** 1863 * Add a new {@link AppTask} for the calling application. This will create a new 1864 * recents entry that is added to the <b>end</b> of all existing recents. 1865 * 1866 * @param activity The activity that is adding the entry. This is used to help determine 1867 * the context that the new recents entry will be in. 1868 * @param intent The Intent that describes the recents entry. This is the same Intent that 1869 * you would have used to launch the activity for it. In generally you will want to set 1870 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1871 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1872 * entry will exist without an activity, so it doesn't make sense to not retain it when 1873 * its activity disappears. The given Intent here also must have an explicit ComponentName 1874 * set on it. 1875 * @param description Optional additional description information. 1876 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1877 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1878 * recreated in your process, probably in a way you don't like, before the recents entry 1879 * is added. 1880 * 1881 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1882 * most likely cause of failure is that there is no more room for more tasks for your app. 1883 */ 1884 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1885 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1886 Point size; 1887 synchronized (this) { 1888 ensureAppTaskThumbnailSizeLocked(); 1889 size = mAppTaskThumbnailSize; 1890 } 1891 final int tw = thumbnail.getWidth(); 1892 final int th = thumbnail.getHeight(); 1893 if (tw != size.x || th != size.y) { 1894 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1895 1896 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1897 float scale; 1898 float dx = 0, dy = 0; 1899 if (tw * size.x > size.y * th) { 1900 scale = (float) size.x / (float) th; 1901 dx = (size.y - tw * scale) * 0.5f; 1902 } else { 1903 scale = (float) size.y / (float) tw; 1904 dy = (size.x - th * scale) * 0.5f; 1905 } 1906 Matrix matrix = new Matrix(); 1907 matrix.setScale(scale, scale); 1908 matrix.postTranslate((int) (dx + 0.5f), 0); 1909 1910 Canvas canvas = new Canvas(bm); 1911 canvas.drawBitmap(thumbnail, matrix, null); 1912 canvas.setBitmap(null); 1913 1914 thumbnail = bm; 1915 } 1916 if (description == null) { 1917 description = new TaskDescription(); 1918 } 1919 try { 1920 return getService().addAppTask(activity.getActivityToken(), 1921 intent, description, thumbnail); 1922 } catch (RemoteException e) { 1923 throw e.rethrowFromSystemServer(); 1924 } 1925 } 1926 1927 /** 1928 * Return a list of the tasks that are currently running, with 1929 * the most recent being first and older ones after in order. Note that 1930 * "running" does not mean any of the task's code is currently loaded or 1931 * activity -- the task may have been frozen by the system, so that it 1932 * can be restarted in its previous state when next brought to the 1933 * foreground. 1934 * 1935 * <p><b>Note: this method is only intended for debugging and presenting 1936 * task management user interfaces</b>. This should never be used for 1937 * core logic in an application, such as deciding between different 1938 * behaviors based on the information found here. Such uses are 1939 * <em>not</em> supported, and will likely break in the future. For 1940 * example, if multiple applications can be actively running at the 1941 * same time, assumptions made about the meaning of the data here for 1942 * purposes of control flow will be incorrect.</p> 1943 * 1944 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1945 * is no longer available to third party 1946 * applications: the introduction of document-centric recents means 1947 * it can leak person information to the caller. For backwards compatibility, 1948 * it will still retu rn a small subset of its data: at least the caller's 1949 * own tasks, and possibly some other tasks 1950 * such as home that are known to not be sensitive. 1951 * 1952 * @param maxNum The maximum number of entries to return in the list. The 1953 * actual number returned may be smaller, depending on how many tasks the 1954 * user has started. 1955 * 1956 * @return Returns a list of RunningTaskInfo records describing each of 1957 * the running tasks. 1958 */ 1959 @Deprecated 1960 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1961 throws SecurityException { 1962 try { 1963 return getService().getTasks(maxNum, 0); 1964 } catch (RemoteException e) { 1965 throw e.rethrowFromSystemServer(); 1966 } 1967 } 1968 1969 /** 1970 * Completely remove the given task. 1971 * 1972 * @param taskId Identifier of the task to be removed. 1973 * @return Returns true if the given task was found and removed. 1974 * 1975 * @hide 1976 */ 1977 public boolean removeTask(int taskId) throws SecurityException { 1978 try { 1979 return getService().removeTask(taskId); 1980 } catch (RemoteException e) { 1981 throw e.rethrowFromSystemServer(); 1982 } 1983 } 1984 1985 /** 1986 * Metadata related to the {@link TaskThumbnail}. 1987 * 1988 * @hide 1989 */ 1990 public static class TaskThumbnailInfo implements Parcelable { 1991 /** @hide */ 1992 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1993 private static final String ATTR_TASK_WIDTH = 1994 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1995 private static final String ATTR_TASK_HEIGHT = 1996 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1997 private static final String ATTR_SCREEN_ORIENTATION = 1998 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1999 2000 public int taskWidth; 2001 public int taskHeight; 2002 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2003 2004 public TaskThumbnailInfo() { 2005 // Do nothing 2006 } 2007 2008 private TaskThumbnailInfo(Parcel source) { 2009 readFromParcel(source); 2010 } 2011 2012 /** 2013 * Resets this info state to the initial state. 2014 * @hide 2015 */ 2016 public void reset() { 2017 taskWidth = 0; 2018 taskHeight = 0; 2019 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2020 } 2021 2022 /** 2023 * Copies from another ThumbnailInfo. 2024 */ 2025 public void copyFrom(TaskThumbnailInfo o) { 2026 taskWidth = o.taskWidth; 2027 taskHeight = o.taskHeight; 2028 screenOrientation = o.screenOrientation; 2029 } 2030 2031 /** @hide */ 2032 public void saveToXml(XmlSerializer out) throws IOException { 2033 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2034 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2035 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2036 } 2037 2038 /** @hide */ 2039 public void restoreFromXml(String attrName, String attrValue) { 2040 if (ATTR_TASK_WIDTH.equals(attrName)) { 2041 taskWidth = Integer.parseInt(attrValue); 2042 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2043 taskHeight = Integer.parseInt(attrValue); 2044 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2045 screenOrientation = Integer.parseInt(attrValue); 2046 } 2047 } 2048 2049 public int describeContents() { 2050 return 0; 2051 } 2052 2053 public void writeToParcel(Parcel dest, int flags) { 2054 dest.writeInt(taskWidth); 2055 dest.writeInt(taskHeight); 2056 dest.writeInt(screenOrientation); 2057 } 2058 2059 public void readFromParcel(Parcel source) { 2060 taskWidth = source.readInt(); 2061 taskHeight = source.readInt(); 2062 screenOrientation = source.readInt(); 2063 } 2064 2065 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2066 public TaskThumbnailInfo createFromParcel(Parcel source) { 2067 return new TaskThumbnailInfo(source); 2068 } 2069 public TaskThumbnailInfo[] newArray(int size) { 2070 return new TaskThumbnailInfo[size]; 2071 } 2072 }; 2073 } 2074 2075 /** @hide */ 2076 public static class TaskThumbnail implements Parcelable { 2077 public Bitmap mainThumbnail; 2078 public ParcelFileDescriptor thumbnailFileDescriptor; 2079 public TaskThumbnailInfo thumbnailInfo; 2080 2081 public TaskThumbnail() { 2082 } 2083 2084 private TaskThumbnail(Parcel source) { 2085 readFromParcel(source); 2086 } 2087 2088 public int describeContents() { 2089 if (thumbnailFileDescriptor != null) { 2090 return thumbnailFileDescriptor.describeContents(); 2091 } 2092 return 0; 2093 } 2094 2095 public void writeToParcel(Parcel dest, int flags) { 2096 if (mainThumbnail != null) { 2097 dest.writeInt(1); 2098 mainThumbnail.writeToParcel(dest, flags); 2099 } else { 2100 dest.writeInt(0); 2101 } 2102 if (thumbnailFileDescriptor != null) { 2103 dest.writeInt(1); 2104 thumbnailFileDescriptor.writeToParcel(dest, flags); 2105 } else { 2106 dest.writeInt(0); 2107 } 2108 if (thumbnailInfo != null) { 2109 dest.writeInt(1); 2110 thumbnailInfo.writeToParcel(dest, flags); 2111 } else { 2112 dest.writeInt(0); 2113 } 2114 } 2115 2116 public void readFromParcel(Parcel source) { 2117 if (source.readInt() != 0) { 2118 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2119 } else { 2120 mainThumbnail = null; 2121 } 2122 if (source.readInt() != 0) { 2123 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2124 } else { 2125 thumbnailFileDescriptor = null; 2126 } 2127 if (source.readInt() != 0) { 2128 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2129 } else { 2130 thumbnailInfo = null; 2131 } 2132 } 2133 2134 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2135 public TaskThumbnail createFromParcel(Parcel source) { 2136 return new TaskThumbnail(source); 2137 } 2138 public TaskThumbnail[] newArray(int size) { 2139 return new TaskThumbnail[size]; 2140 } 2141 }; 2142 } 2143 2144 /** 2145 * Represents a task snapshot. 2146 * @hide 2147 */ 2148 public static class TaskSnapshot implements Parcelable { 2149 2150 private final GraphicBuffer mSnapshot; 2151 private final int mOrientation; 2152 private final Rect mContentInsets; 2153 2154 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets) { 2155 mSnapshot = snapshot; 2156 mOrientation = orientation; 2157 mContentInsets = new Rect(contentInsets); 2158 } 2159 2160 private TaskSnapshot(Parcel source) { 2161 mSnapshot = source.readParcelable(null /* classLoader */); 2162 mOrientation = source.readInt(); 2163 mContentInsets = source.readParcelable(null /* classLoader */); 2164 } 2165 2166 public GraphicBuffer getSnapshot() { 2167 return mSnapshot; 2168 } 2169 2170 public int getOrientation() { 2171 return mOrientation; 2172 } 2173 2174 public Rect getContentInsets() { 2175 return mContentInsets; 2176 } 2177 2178 @Override 2179 public int describeContents() { 2180 return 0; 2181 } 2182 2183 @Override 2184 public void writeToParcel(Parcel dest, int flags) { 2185 dest.writeParcelable(mSnapshot, 0); 2186 dest.writeInt(mOrientation); 2187 dest.writeParcelable(mContentInsets, 0); 2188 } 2189 2190 @Override 2191 public String toString() { 2192 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2193 + " mContentInsets=" + mContentInsets.toShortString(); 2194 } 2195 2196 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2197 public TaskSnapshot createFromParcel(Parcel source) { 2198 return new TaskSnapshot(source); 2199 } 2200 public TaskSnapshot[] newArray(int size) { 2201 return new TaskSnapshot[size]; 2202 } 2203 }; 2204 } 2205 2206 /** @hide */ 2207 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2208 try { 2209 return getService().getTaskThumbnail(id); 2210 } catch (RemoteException e) { 2211 throw e.rethrowFromSystemServer(); 2212 } 2213 } 2214 2215 /** 2216 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2217 * activity along with the task, so it is positioned immediately behind 2218 * the task. 2219 */ 2220 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2221 2222 /** 2223 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2224 * user-instigated action, so the current activity will not receive a 2225 * hint that the user is leaving. 2226 */ 2227 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2228 2229 /** 2230 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2231 * with a null options argument. 2232 * 2233 * @param taskId The identifier of the task to be moved, as found in 2234 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2235 * @param flags Additional operational flags, 0 or more of 2236 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2237 */ 2238 public void moveTaskToFront(int taskId, int flags) { 2239 moveTaskToFront(taskId, flags, null); 2240 } 2241 2242 /** 2243 * Ask that the task associated with a given task ID be moved to the 2244 * front of the stack, so it is now visible to the user. Requires that 2245 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2246 * or a SecurityException will be thrown. 2247 * 2248 * @param taskId The identifier of the task to be moved, as found in 2249 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2250 * @param flags Additional operational flags, 0 or more of 2251 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2252 * @param options Additional options for the operation, either null or 2253 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2254 * Context.startActivity(Intent, Bundle)}. 2255 */ 2256 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2257 try { 2258 getService().moveTaskToFront(taskId, flags, options); 2259 } catch (RemoteException e) { 2260 throw e.rethrowFromSystemServer(); 2261 } 2262 } 2263 2264 /** 2265 * Information you can retrieve about a particular Service that is 2266 * currently running in the system. 2267 */ 2268 public static class RunningServiceInfo implements Parcelable { 2269 /** 2270 * The service component. 2271 */ 2272 public ComponentName service; 2273 2274 /** 2275 * If non-zero, this is the process the service is running in. 2276 */ 2277 public int pid; 2278 2279 /** 2280 * The UID that owns this service. 2281 */ 2282 public int uid; 2283 2284 /** 2285 * The name of the process this service runs in. 2286 */ 2287 public String process; 2288 2289 /** 2290 * Set to true if the service has asked to run as a foreground process. 2291 */ 2292 public boolean foreground; 2293 2294 /** 2295 * The time when the service was first made active, either by someone 2296 * starting or binding to it. This 2297 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2298 */ 2299 public long activeSince; 2300 2301 /** 2302 * Set to true if this service has been explicitly started. 2303 */ 2304 public boolean started; 2305 2306 /** 2307 * Number of clients connected to the service. 2308 */ 2309 public int clientCount; 2310 2311 /** 2312 * Number of times the service's process has crashed while the service 2313 * is running. 2314 */ 2315 public int crashCount; 2316 2317 /** 2318 * The time when there was last activity in the service (either 2319 * explicit requests to start it or clients binding to it). This 2320 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2321 */ 2322 public long lastActivityTime; 2323 2324 /** 2325 * If non-zero, this service is not currently running, but scheduled to 2326 * restart at the given time. 2327 */ 2328 public long restarting; 2329 2330 /** 2331 * Bit for {@link #flags}: set if this service has been 2332 * explicitly started. 2333 */ 2334 public static final int FLAG_STARTED = 1<<0; 2335 2336 /** 2337 * Bit for {@link #flags}: set if the service has asked to 2338 * run as a foreground process. 2339 */ 2340 public static final int FLAG_FOREGROUND = 1<<1; 2341 2342 /** 2343 * Bit for {@link #flags}: set if the service is running in a 2344 * core system process. 2345 */ 2346 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2347 2348 /** 2349 * Bit for {@link #flags}: set if the service is running in a 2350 * persistent process. 2351 */ 2352 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2353 2354 /** 2355 * Running flags. 2356 */ 2357 public int flags; 2358 2359 /** 2360 * For special services that are bound to by system code, this is 2361 * the package that holds the binding. 2362 */ 2363 public String clientPackage; 2364 2365 /** 2366 * For special services that are bound to by system code, this is 2367 * a string resource providing a user-visible label for who the 2368 * client is. 2369 */ 2370 public int clientLabel; 2371 2372 public RunningServiceInfo() { 2373 } 2374 2375 public int describeContents() { 2376 return 0; 2377 } 2378 2379 public void writeToParcel(Parcel dest, int flags) { 2380 ComponentName.writeToParcel(service, dest); 2381 dest.writeInt(pid); 2382 dest.writeInt(uid); 2383 dest.writeString(process); 2384 dest.writeInt(foreground ? 1 : 0); 2385 dest.writeLong(activeSince); 2386 dest.writeInt(started ? 1 : 0); 2387 dest.writeInt(clientCount); 2388 dest.writeInt(crashCount); 2389 dest.writeLong(lastActivityTime); 2390 dest.writeLong(restarting); 2391 dest.writeInt(this.flags); 2392 dest.writeString(clientPackage); 2393 dest.writeInt(clientLabel); 2394 } 2395 2396 public void readFromParcel(Parcel source) { 2397 service = ComponentName.readFromParcel(source); 2398 pid = source.readInt(); 2399 uid = source.readInt(); 2400 process = source.readString(); 2401 foreground = source.readInt() != 0; 2402 activeSince = source.readLong(); 2403 started = source.readInt() != 0; 2404 clientCount = source.readInt(); 2405 crashCount = source.readInt(); 2406 lastActivityTime = source.readLong(); 2407 restarting = source.readLong(); 2408 flags = source.readInt(); 2409 clientPackage = source.readString(); 2410 clientLabel = source.readInt(); 2411 } 2412 2413 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2414 public RunningServiceInfo createFromParcel(Parcel source) { 2415 return new RunningServiceInfo(source); 2416 } 2417 public RunningServiceInfo[] newArray(int size) { 2418 return new RunningServiceInfo[size]; 2419 } 2420 }; 2421 2422 private RunningServiceInfo(Parcel source) { 2423 readFromParcel(source); 2424 } 2425 } 2426 2427 /** 2428 * Return a list of the services that are currently running. 2429 * 2430 * <p><b>Note: this method is only intended for debugging or implementing 2431 * service management type user interfaces.</b></p> 2432 * 2433 * @param maxNum The maximum number of entries to return in the list. The 2434 * actual number returned may be smaller, depending on how many services 2435 * are running. 2436 * 2437 * @return Returns a list of RunningServiceInfo records describing each of 2438 * the running tasks. 2439 */ 2440 public List<RunningServiceInfo> getRunningServices(int maxNum) 2441 throws SecurityException { 2442 try { 2443 return getService() 2444 .getServices(maxNum, 0); 2445 } catch (RemoteException e) { 2446 throw e.rethrowFromSystemServer(); 2447 } 2448 } 2449 2450 /** 2451 * Returns a PendingIntent you can start to show a control panel for the 2452 * given running service. If the service does not have a control panel, 2453 * null is returned. 2454 */ 2455 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2456 throws SecurityException { 2457 try { 2458 return getService() 2459 .getRunningServiceControlPanel(service); 2460 } catch (RemoteException e) { 2461 throw e.rethrowFromSystemServer(); 2462 } 2463 } 2464 2465 /** 2466 * Information you can retrieve about the available memory through 2467 * {@link ActivityManager#getMemoryInfo}. 2468 */ 2469 public static class MemoryInfo implements Parcelable { 2470 /** 2471 * The available memory on the system. This number should not 2472 * be considered absolute: due to the nature of the kernel, a significant 2473 * portion of this memory is actually in use and needed for the overall 2474 * system to run well. 2475 */ 2476 public long availMem; 2477 2478 /** 2479 * The total memory accessible by the kernel. This is basically the 2480 * RAM size of the device, not including below-kernel fixed allocations 2481 * like DMA buffers, RAM for the baseband CPU, etc. 2482 */ 2483 public long totalMem; 2484 2485 /** 2486 * The threshold of {@link #availMem} at which we consider memory to be 2487 * low and start killing background services and other non-extraneous 2488 * processes. 2489 */ 2490 public long threshold; 2491 2492 /** 2493 * Set to true if the system considers itself to currently be in a low 2494 * memory situation. 2495 */ 2496 public boolean lowMemory; 2497 2498 /** @hide */ 2499 public long hiddenAppThreshold; 2500 /** @hide */ 2501 public long secondaryServerThreshold; 2502 /** @hide */ 2503 public long visibleAppThreshold; 2504 /** @hide */ 2505 public long foregroundAppThreshold; 2506 2507 public MemoryInfo() { 2508 } 2509 2510 public int describeContents() { 2511 return 0; 2512 } 2513 2514 public void writeToParcel(Parcel dest, int flags) { 2515 dest.writeLong(availMem); 2516 dest.writeLong(totalMem); 2517 dest.writeLong(threshold); 2518 dest.writeInt(lowMemory ? 1 : 0); 2519 dest.writeLong(hiddenAppThreshold); 2520 dest.writeLong(secondaryServerThreshold); 2521 dest.writeLong(visibleAppThreshold); 2522 dest.writeLong(foregroundAppThreshold); 2523 } 2524 2525 public void readFromParcel(Parcel source) { 2526 availMem = source.readLong(); 2527 totalMem = source.readLong(); 2528 threshold = source.readLong(); 2529 lowMemory = source.readInt() != 0; 2530 hiddenAppThreshold = source.readLong(); 2531 secondaryServerThreshold = source.readLong(); 2532 visibleAppThreshold = source.readLong(); 2533 foregroundAppThreshold = source.readLong(); 2534 } 2535 2536 public static final Creator<MemoryInfo> CREATOR 2537 = new Creator<MemoryInfo>() { 2538 public MemoryInfo createFromParcel(Parcel source) { 2539 return new MemoryInfo(source); 2540 } 2541 public MemoryInfo[] newArray(int size) { 2542 return new MemoryInfo[size]; 2543 } 2544 }; 2545 2546 private MemoryInfo(Parcel source) { 2547 readFromParcel(source); 2548 } 2549 } 2550 2551 /** 2552 * Return general information about the memory state of the system. This 2553 * can be used to help decide how to manage your own memory, though note 2554 * that polling is not recommended and 2555 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2556 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2557 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2558 * level of your process as needed, which gives a better hint for how to 2559 * manage its memory. 2560 */ 2561 public void getMemoryInfo(MemoryInfo outInfo) { 2562 try { 2563 getService().getMemoryInfo(outInfo); 2564 } catch (RemoteException e) { 2565 throw e.rethrowFromSystemServer(); 2566 } 2567 } 2568 2569 /** 2570 * Information you can retrieve about an ActivityStack in the system. 2571 * @hide 2572 */ 2573 public static class StackInfo implements Parcelable { 2574 public int stackId; 2575 public Rect bounds = new Rect(); 2576 public int[] taskIds; 2577 public String[] taskNames; 2578 public Rect[] taskBounds; 2579 public int[] taskUserIds; 2580 public ComponentName topActivity; 2581 public int displayId; 2582 public int userId; 2583 public boolean visible; 2584 // Index of the stack in the display's stack list, can be used for comparison of stack order 2585 public int position; 2586 2587 @Override 2588 public int describeContents() { 2589 return 0; 2590 } 2591 2592 @Override 2593 public void writeToParcel(Parcel dest, int flags) { 2594 dest.writeInt(stackId); 2595 dest.writeInt(bounds.left); 2596 dest.writeInt(bounds.top); 2597 dest.writeInt(bounds.right); 2598 dest.writeInt(bounds.bottom); 2599 dest.writeIntArray(taskIds); 2600 dest.writeStringArray(taskNames); 2601 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2602 dest.writeInt(boundsCount); 2603 for (int i = 0; i < boundsCount; i++) { 2604 dest.writeInt(taskBounds[i].left); 2605 dest.writeInt(taskBounds[i].top); 2606 dest.writeInt(taskBounds[i].right); 2607 dest.writeInt(taskBounds[i].bottom); 2608 } 2609 dest.writeIntArray(taskUserIds); 2610 dest.writeInt(displayId); 2611 dest.writeInt(userId); 2612 dest.writeInt(visible ? 1 : 0); 2613 dest.writeInt(position); 2614 if (topActivity != null) { 2615 dest.writeInt(1); 2616 topActivity.writeToParcel(dest, 0); 2617 } else { 2618 dest.writeInt(0); 2619 } 2620 } 2621 2622 public void readFromParcel(Parcel source) { 2623 stackId = source.readInt(); 2624 bounds = new Rect( 2625 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2626 taskIds = source.createIntArray(); 2627 taskNames = source.createStringArray(); 2628 final int boundsCount = source.readInt(); 2629 if (boundsCount > 0) { 2630 taskBounds = new Rect[boundsCount]; 2631 for (int i = 0; i < boundsCount; i++) { 2632 taskBounds[i] = new Rect(); 2633 taskBounds[i].set( 2634 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2635 } 2636 } else { 2637 taskBounds = null; 2638 } 2639 taskUserIds = source.createIntArray(); 2640 displayId = source.readInt(); 2641 userId = source.readInt(); 2642 visible = source.readInt() > 0; 2643 position = source.readInt(); 2644 if (source.readInt() > 0) { 2645 topActivity = ComponentName.readFromParcel(source); 2646 } 2647 } 2648 2649 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2650 @Override 2651 public StackInfo createFromParcel(Parcel source) { 2652 return new StackInfo(source); 2653 } 2654 @Override 2655 public StackInfo[] newArray(int size) { 2656 return new StackInfo[size]; 2657 } 2658 }; 2659 2660 public StackInfo() { 2661 } 2662 2663 private StackInfo(Parcel source) { 2664 readFromParcel(source); 2665 } 2666 2667 public String toString(String prefix) { 2668 StringBuilder sb = new StringBuilder(256); 2669 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2670 sb.append(" bounds="); sb.append(bounds.toShortString()); 2671 sb.append(" displayId="); sb.append(displayId); 2672 sb.append(" userId="); sb.append(userId); 2673 sb.append("\n"); 2674 prefix = prefix + " "; 2675 for (int i = 0; i < taskIds.length; ++i) { 2676 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2677 sb.append(": "); sb.append(taskNames[i]); 2678 if (taskBounds != null) { 2679 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2680 } 2681 sb.append(" userId=").append(taskUserIds[i]); 2682 sb.append(" visible=").append(visible); 2683 if (topActivity != null) { 2684 sb.append(" topActivity=").append(topActivity); 2685 } 2686 sb.append("\n"); 2687 } 2688 return sb.toString(); 2689 } 2690 2691 @Override 2692 public String toString() { 2693 return toString(""); 2694 } 2695 } 2696 2697 /** 2698 * @hide 2699 */ 2700 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2701 try { 2702 return getService().clearApplicationUserData(packageName, 2703 observer, UserHandle.myUserId()); 2704 } catch (RemoteException e) { 2705 throw e.rethrowFromSystemServer(); 2706 } 2707 } 2708 2709 /** 2710 * Permits an application to erase its own data from disk. This is equivalent to 2711 * the user choosing to clear the app's data from within the device settings UI. It 2712 * erases all dynamic data associated with the app -- its private data and data in its 2713 * private area on external storage -- but does not remove the installed application 2714 * itself, nor any OBB files. 2715 * 2716 * @return {@code true} if the application successfully requested that the application's 2717 * data be erased; {@code false} otherwise. 2718 */ 2719 public boolean clearApplicationUserData() { 2720 return clearApplicationUserData(mContext.getPackageName(), null); 2721 } 2722 2723 2724 /** 2725 * Permits an application to get the persistent URI permissions granted to another. 2726 * 2727 * <p>Typically called by Settings. 2728 * 2729 * @param packageName application to look for the granted permissions 2730 * @return list of granted URI permissions 2731 * 2732 * @hide 2733 */ 2734 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2735 try { 2736 return getService().getGrantedUriPermissions(packageName, 2737 UserHandle.myUserId()); 2738 } catch (RemoteException e) { 2739 throw e.rethrowFromSystemServer(); 2740 } 2741 } 2742 2743 /** 2744 * Permits an application to clear the persistent URI permissions granted to another. 2745 * 2746 * <p>Typically called by Settings. 2747 * 2748 * @param packageName application to clear its granted permissions 2749 * 2750 * @hide 2751 */ 2752 public void clearGrantedUriPermissions(String packageName) { 2753 try { 2754 getService().clearGrantedUriPermissions(packageName, 2755 UserHandle.myUserId()); 2756 } catch (RemoteException e) { 2757 throw e.rethrowFromSystemServer(); 2758 } 2759 } 2760 2761 /** 2762 * Information you can retrieve about any processes that are in an error condition. 2763 */ 2764 public static class ProcessErrorStateInfo implements Parcelable { 2765 /** 2766 * Condition codes 2767 */ 2768 public static final int NO_ERROR = 0; 2769 public static final int CRASHED = 1; 2770 public static final int NOT_RESPONDING = 2; 2771 2772 /** 2773 * The condition that the process is in. 2774 */ 2775 public int condition; 2776 2777 /** 2778 * The process name in which the crash or error occurred. 2779 */ 2780 public String processName; 2781 2782 /** 2783 * The pid of this process; 0 if none 2784 */ 2785 public int pid; 2786 2787 /** 2788 * The kernel user-ID that has been assigned to this process; 2789 * currently this is not a unique ID (multiple applications can have 2790 * the same uid). 2791 */ 2792 public int uid; 2793 2794 /** 2795 * The activity name associated with the error, if known. May be null. 2796 */ 2797 public String tag; 2798 2799 /** 2800 * A short message describing the error condition. 2801 */ 2802 public String shortMsg; 2803 2804 /** 2805 * A long message describing the error condition. 2806 */ 2807 public String longMsg; 2808 2809 /** 2810 * The stack trace where the error originated. May be null. 2811 */ 2812 public String stackTrace; 2813 2814 /** 2815 * to be deprecated: This value will always be null. 2816 */ 2817 public byte[] crashData = null; 2818 2819 public ProcessErrorStateInfo() { 2820 } 2821 2822 @Override 2823 public int describeContents() { 2824 return 0; 2825 } 2826 2827 @Override 2828 public void writeToParcel(Parcel dest, int flags) { 2829 dest.writeInt(condition); 2830 dest.writeString(processName); 2831 dest.writeInt(pid); 2832 dest.writeInt(uid); 2833 dest.writeString(tag); 2834 dest.writeString(shortMsg); 2835 dest.writeString(longMsg); 2836 dest.writeString(stackTrace); 2837 } 2838 2839 public void readFromParcel(Parcel source) { 2840 condition = source.readInt(); 2841 processName = source.readString(); 2842 pid = source.readInt(); 2843 uid = source.readInt(); 2844 tag = source.readString(); 2845 shortMsg = source.readString(); 2846 longMsg = source.readString(); 2847 stackTrace = source.readString(); 2848 } 2849 2850 public static final Creator<ProcessErrorStateInfo> CREATOR = 2851 new Creator<ProcessErrorStateInfo>() { 2852 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2853 return new ProcessErrorStateInfo(source); 2854 } 2855 public ProcessErrorStateInfo[] newArray(int size) { 2856 return new ProcessErrorStateInfo[size]; 2857 } 2858 }; 2859 2860 private ProcessErrorStateInfo(Parcel source) { 2861 readFromParcel(source); 2862 } 2863 } 2864 2865 /** 2866 * Returns a list of any processes that are currently in an error condition. The result 2867 * will be null if all processes are running properly at this time. 2868 * 2869 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2870 * current error conditions (it will not return an empty list). This list ordering is not 2871 * specified. 2872 */ 2873 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2874 try { 2875 return getService().getProcessesInErrorState(); 2876 } catch (RemoteException e) { 2877 throw e.rethrowFromSystemServer(); 2878 } 2879 } 2880 2881 /** 2882 * Information you can retrieve about a running process. 2883 */ 2884 public static class RunningAppProcessInfo implements Parcelable { 2885 /** 2886 * The name of the process that this object is associated with 2887 */ 2888 public String processName; 2889 2890 /** 2891 * The pid of this process; 0 if none 2892 */ 2893 public int pid; 2894 2895 /** 2896 * The user id of this process. 2897 */ 2898 public int uid; 2899 2900 /** 2901 * All packages that have been loaded into the process. 2902 */ 2903 public String pkgList[]; 2904 2905 /** 2906 * Constant for {@link #flags}: this is an app that is unable to 2907 * correctly save its state when going to the background, 2908 * so it can not be killed while in the background. 2909 * @hide 2910 */ 2911 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2912 2913 /** 2914 * Constant for {@link #flags}: this process is associated with a 2915 * persistent system app. 2916 * @hide 2917 */ 2918 public static final int FLAG_PERSISTENT = 1<<1; 2919 2920 /** 2921 * Constant for {@link #flags}: this process is associated with a 2922 * persistent system app. 2923 * @hide 2924 */ 2925 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2926 2927 /** 2928 * Flags of information. May be any of 2929 * {@link #FLAG_CANT_SAVE_STATE}. 2930 * @hide 2931 */ 2932 public int flags; 2933 2934 /** 2935 * Last memory trim level reported to the process: corresponds to 2936 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2937 * ComponentCallbacks2.onTrimMemory(int)}. 2938 */ 2939 public int lastTrimLevel; 2940 2941 /** 2942 * Constant for {@link #importance}: This process is running the 2943 * foreground UI; that is, it is the thing currently at the top of the screen 2944 * that the user is interacting with. 2945 */ 2946 public static final int IMPORTANCE_FOREGROUND = 100; 2947 2948 /** 2949 * Constant for {@link #importance}: This process is running a foreground 2950 * service, for example to perform music playback even while the user is 2951 * not immediately in the app. This generally indicates that the process 2952 * is doing something the user actively cares about. 2953 */ 2954 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2955 2956 /** 2957 * Constant for {@link #importance}: This process is running the foreground 2958 * UI, but the device is asleep so it is not visible to the user. This means 2959 * the user is not really aware of the process, because they can not see or 2960 * interact with it, but it is quite important because it what they expect to 2961 * return to once unlocking the device. 2962 */ 2963 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2964 2965 /** 2966 * Constant for {@link #importance}: This process is running something 2967 * that is actively visible to the user, though not in the immediate 2968 * foreground. This may be running a window that is behind the current 2969 * foreground (so paused and with its state saved, not interacting with 2970 * the user, but visible to them to some degree); it may also be running 2971 * other services under the system's control that it inconsiders important. 2972 */ 2973 public static final int IMPORTANCE_VISIBLE = 200; 2974 2975 /** 2976 * Constant for {@link #importance}: This process is not something the user 2977 * is directly aware of, but is otherwise perceptable to them to some degree. 2978 */ 2979 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2980 2981 /** 2982 * Constant for {@link #importance}: This process is running an 2983 * application that can not save its state, and thus can't be killed 2984 * while in the background. 2985 * @hide 2986 */ 2987 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2988 2989 /** 2990 * Constant for {@link #importance}: This process is contains services 2991 * that should remain running. These are background services apps have 2992 * started, not something the user is aware of, so they may be killed by 2993 * the system relatively freely (though it is generally desired that they 2994 * stay running as long as they want to). 2995 */ 2996 public static final int IMPORTANCE_SERVICE = 300; 2997 2998 /** 2999 * Constant for {@link #importance}: This process process contains 3000 * background code that is expendable. 3001 */ 3002 public static final int IMPORTANCE_BACKGROUND = 400; 3003 3004 /** 3005 * Constant for {@link #importance}: This process is empty of any 3006 * actively running code. 3007 */ 3008 public static final int IMPORTANCE_EMPTY = 500; 3009 3010 /** 3011 * Constant for {@link #importance}: This process does not exist. 3012 */ 3013 public static final int IMPORTANCE_GONE = 1000; 3014 3015 /** @hide */ 3016 public static int procStateToImportance(int procState) { 3017 if (procState == PROCESS_STATE_NONEXISTENT) { 3018 return IMPORTANCE_GONE; 3019 } else if (procState >= PROCESS_STATE_HOME) { 3020 return IMPORTANCE_BACKGROUND; 3021 } else if (procState >= PROCESS_STATE_SERVICE) { 3022 return IMPORTANCE_SERVICE; 3023 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3024 return IMPORTANCE_CANT_SAVE_STATE; 3025 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3026 return IMPORTANCE_PERCEPTIBLE; 3027 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3028 return IMPORTANCE_VISIBLE; 3029 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3030 return IMPORTANCE_TOP_SLEEPING; 3031 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3032 return IMPORTANCE_FOREGROUND_SERVICE; 3033 } else { 3034 return IMPORTANCE_FOREGROUND; 3035 } 3036 } 3037 3038 /** @hide */ 3039 public static int importanceToProcState(int importance) { 3040 if (importance == IMPORTANCE_GONE) { 3041 return PROCESS_STATE_NONEXISTENT; 3042 } else if (importance >= IMPORTANCE_BACKGROUND) { 3043 return PROCESS_STATE_HOME; 3044 } else if (importance >= IMPORTANCE_SERVICE) { 3045 return PROCESS_STATE_SERVICE; 3046 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3047 return PROCESS_STATE_HEAVY_WEIGHT; 3048 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3049 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3050 } else if (importance >= IMPORTANCE_VISIBLE) { 3051 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3052 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3053 return PROCESS_STATE_TOP_SLEEPING; 3054 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3055 return PROCESS_STATE_FOREGROUND_SERVICE; 3056 } else { 3057 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3058 } 3059 } 3060 3061 /** 3062 * The relative importance level that the system places on this 3063 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3064 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 3065 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 3066 * constants are numbered so that "more important" values are always 3067 * smaller than "less important" values. 3068 */ 3069 public int importance; 3070 3071 /** 3072 * An additional ordering within a particular {@link #importance} 3073 * category, providing finer-grained information about the relative 3074 * utility of processes within a category. This number means nothing 3075 * except that a smaller values are more recently used (and thus 3076 * more important). Currently an LRU value is only maintained for 3077 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 3078 * be maintained in the future. 3079 */ 3080 public int lru; 3081 3082 /** 3083 * Constant for {@link #importanceReasonCode}: nothing special has 3084 * been specified for the reason for this level. 3085 */ 3086 public static final int REASON_UNKNOWN = 0; 3087 3088 /** 3089 * Constant for {@link #importanceReasonCode}: one of the application's 3090 * content providers is being used by another process. The pid of 3091 * the client process is in {@link #importanceReasonPid} and the 3092 * target provider in this process is in 3093 * {@link #importanceReasonComponent}. 3094 */ 3095 public static final int REASON_PROVIDER_IN_USE = 1; 3096 3097 /** 3098 * Constant for {@link #importanceReasonCode}: one of the application's 3099 * content providers is being used by another process. The pid of 3100 * the client process is in {@link #importanceReasonPid} and the 3101 * target provider in this process is in 3102 * {@link #importanceReasonComponent}. 3103 */ 3104 public static final int REASON_SERVICE_IN_USE = 2; 3105 3106 /** 3107 * The reason for {@link #importance}, if any. 3108 */ 3109 public int importanceReasonCode; 3110 3111 /** 3112 * For the specified values of {@link #importanceReasonCode}, this 3113 * is the process ID of the other process that is a client of this 3114 * process. This will be 0 if no other process is using this one. 3115 */ 3116 public int importanceReasonPid; 3117 3118 /** 3119 * For the specified values of {@link #importanceReasonCode}, this 3120 * is the name of the component that is being used in this process. 3121 */ 3122 public ComponentName importanceReasonComponent; 3123 3124 /** 3125 * When {@link #importanceReasonPid} is non-0, this is the importance 3126 * of the other pid. @hide 3127 */ 3128 public int importanceReasonImportance; 3129 3130 /** 3131 * Current process state, as per PROCESS_STATE_* constants. 3132 * @hide 3133 */ 3134 public int processState; 3135 3136 public RunningAppProcessInfo() { 3137 importance = IMPORTANCE_FOREGROUND; 3138 importanceReasonCode = REASON_UNKNOWN; 3139 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3140 } 3141 3142 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3143 processName = pProcessName; 3144 pid = pPid; 3145 pkgList = pArr; 3146 } 3147 3148 public int describeContents() { 3149 return 0; 3150 } 3151 3152 public void writeToParcel(Parcel dest, int flags) { 3153 dest.writeString(processName); 3154 dest.writeInt(pid); 3155 dest.writeInt(uid); 3156 dest.writeStringArray(pkgList); 3157 dest.writeInt(this.flags); 3158 dest.writeInt(lastTrimLevel); 3159 dest.writeInt(importance); 3160 dest.writeInt(lru); 3161 dest.writeInt(importanceReasonCode); 3162 dest.writeInt(importanceReasonPid); 3163 ComponentName.writeToParcel(importanceReasonComponent, dest); 3164 dest.writeInt(importanceReasonImportance); 3165 dest.writeInt(processState); 3166 } 3167 3168 public void readFromParcel(Parcel source) { 3169 processName = source.readString(); 3170 pid = source.readInt(); 3171 uid = source.readInt(); 3172 pkgList = source.readStringArray(); 3173 flags = source.readInt(); 3174 lastTrimLevel = source.readInt(); 3175 importance = source.readInt(); 3176 lru = source.readInt(); 3177 importanceReasonCode = source.readInt(); 3178 importanceReasonPid = source.readInt(); 3179 importanceReasonComponent = ComponentName.readFromParcel(source); 3180 importanceReasonImportance = source.readInt(); 3181 processState = source.readInt(); 3182 } 3183 3184 public static final Creator<RunningAppProcessInfo> CREATOR = 3185 new Creator<RunningAppProcessInfo>() { 3186 public RunningAppProcessInfo createFromParcel(Parcel source) { 3187 return new RunningAppProcessInfo(source); 3188 } 3189 public RunningAppProcessInfo[] newArray(int size) { 3190 return new RunningAppProcessInfo[size]; 3191 } 3192 }; 3193 3194 private RunningAppProcessInfo(Parcel source) { 3195 readFromParcel(source); 3196 } 3197 } 3198 3199 /** 3200 * Returns a list of application processes installed on external media 3201 * that are running on the device. 3202 * 3203 * <p><b>Note: this method is only intended for debugging or building 3204 * a user-facing process management UI.</b></p> 3205 * 3206 * @return Returns a list of ApplicationInfo records, or null if none 3207 * This list ordering is not specified. 3208 * @hide 3209 */ 3210 public List<ApplicationInfo> getRunningExternalApplications() { 3211 try { 3212 return getService().getRunningExternalApplications(); 3213 } catch (RemoteException e) { 3214 throw e.rethrowFromSystemServer(); 3215 } 3216 } 3217 3218 /** 3219 * Sets the memory trim mode for a process and schedules a memory trim operation. 3220 * 3221 * <p><b>Note: this method is only intended for testing framework.</b></p> 3222 * 3223 * @return Returns true if successful. 3224 * @hide 3225 */ 3226 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3227 try { 3228 return getService().setProcessMemoryTrimLevel(process, userId, 3229 level); 3230 } catch (RemoteException e) { 3231 throw e.rethrowFromSystemServer(); 3232 } 3233 } 3234 3235 /** 3236 * Returns a list of application processes that are running on the device. 3237 * 3238 * <p><b>Note: this method is only intended for debugging or building 3239 * a user-facing process management UI.</b></p> 3240 * 3241 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3242 * running processes (it will not return an empty list). This list ordering is not 3243 * specified. 3244 */ 3245 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3246 try { 3247 return getService().getRunningAppProcesses(); 3248 } catch (RemoteException e) { 3249 throw e.rethrowFromSystemServer(); 3250 } 3251 } 3252 3253 /** 3254 * Return the importance of a given package name, based on the processes that are 3255 * currently running. The return value is one of the importance constants defined 3256 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3257 * processes that this package has code running inside of. If there are no processes 3258 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3259 * @hide 3260 */ 3261 @SystemApi @TestApi 3262 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3263 public int getPackageImportance(String packageName) { 3264 try { 3265 int procState = getService().getPackageProcessState(packageName, 3266 mContext.getOpPackageName()); 3267 return RunningAppProcessInfo.procStateToImportance(procState); 3268 } catch (RemoteException e) { 3269 throw e.rethrowFromSystemServer(); 3270 } 3271 } 3272 3273 /** 3274 * Callback to get reports about changes to the importance of a uid. Use with 3275 * {@link #addOnUidImportanceListener}. 3276 * @hide 3277 */ 3278 @SystemApi @TestApi 3279 public interface OnUidImportanceListener { 3280 /** 3281 * The importance if a given uid has changed. Will be one of the importance 3282 * values in {@link RunningAppProcessInfo}; 3283 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3284 * when the uid is no longer running at all. This callback will happen on a thread 3285 * from a thread pool, not the main UI thread. 3286 * @param uid The uid whose importance has changed. 3287 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3288 */ 3289 void onUidImportance(int uid, int importance); 3290 } 3291 3292 /** 3293 * Start monitoring changes to the imoportance of uids running in the system. 3294 * @param listener The listener callback that will receive change reports. 3295 * @param importanceCutpoint The level of importance in which the caller is interested 3296 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3297 * is used here, you will receive a call each time a uids importance transitions between 3298 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3299 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3300 * 3301 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3302 * permission to use this feature.</p> 3303 * 3304 * @throws IllegalArgumentException If the listener is already registered. 3305 * @throws SecurityException If the caller does not hold 3306 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3307 * @hide 3308 */ 3309 @SystemApi @TestApi 3310 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3311 int importanceCutpoint) { 3312 synchronized (this) { 3313 if (mImportanceListeners.containsKey(listener)) { 3314 throw new IllegalArgumentException("Listener already registered: " + listener); 3315 } 3316 // TODO: implement the cut point in the system process to avoid IPCs. 3317 UidObserver observer = new UidObserver(listener); 3318 try { 3319 getService().registerUidObserver(observer, 3320 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3321 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3322 mContext.getOpPackageName()); 3323 } catch (RemoteException e) { 3324 throw e.rethrowFromSystemServer(); 3325 } 3326 mImportanceListeners.put(listener, observer); 3327 } 3328 } 3329 3330 /** 3331 * Remove an importance listener that was previously registered with 3332 * {@link #addOnUidImportanceListener}. 3333 * 3334 * @throws IllegalArgumentException If the listener is not registered. 3335 * @hide 3336 */ 3337 @SystemApi @TestApi 3338 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3339 synchronized (this) { 3340 UidObserver observer = mImportanceListeners.remove(listener); 3341 if (observer == null) { 3342 throw new IllegalArgumentException("Listener not registered: " + listener); 3343 } 3344 try { 3345 getService().unregisterUidObserver(observer); 3346 } catch (RemoteException e) { 3347 throw e.rethrowFromSystemServer(); 3348 } 3349 } 3350 } 3351 3352 /** 3353 * Return global memory state information for the calling process. This 3354 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3355 * only fields that will be filled in are 3356 * {@link RunningAppProcessInfo#pid}, 3357 * {@link RunningAppProcessInfo#uid}, 3358 * {@link RunningAppProcessInfo#lastTrimLevel}, 3359 * {@link RunningAppProcessInfo#importance}, 3360 * {@link RunningAppProcessInfo#lru}, and 3361 * {@link RunningAppProcessInfo#importanceReasonCode}. 3362 */ 3363 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3364 try { 3365 getService().getMyMemoryState(outState); 3366 } catch (RemoteException e) { 3367 throw e.rethrowFromSystemServer(); 3368 } 3369 } 3370 3371 /** 3372 * Return information about the memory usage of one or more processes. 3373 * 3374 * <p><b>Note: this method is only intended for debugging or building 3375 * a user-facing process management UI.</b></p> 3376 * 3377 * @param pids The pids of the processes whose memory usage is to be 3378 * retrieved. 3379 * @return Returns an array of memory information, one for each 3380 * requested pid. 3381 */ 3382 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3383 try { 3384 return getService().getProcessMemoryInfo(pids); 3385 } catch (RemoteException e) { 3386 throw e.rethrowFromSystemServer(); 3387 } 3388 } 3389 3390 /** 3391 * @deprecated This is now just a wrapper for 3392 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3393 * is no longer available to applications because it allows them to 3394 * break other applications by removing their alarms, stopping their 3395 * services, etc. 3396 */ 3397 @Deprecated 3398 public void restartPackage(String packageName) { 3399 killBackgroundProcesses(packageName); 3400 } 3401 3402 /** 3403 * Have the system immediately kill all background processes associated 3404 * with the given package. This is the same as the kernel killing those 3405 * processes to reclaim memory; the system will take care of restarting 3406 * these processes in the future as needed. 3407 * 3408 * <p>You must hold the permission 3409 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3410 * call this method. 3411 * 3412 * @param packageName The name of the package whose processes are to 3413 * be killed. 3414 */ 3415 public void killBackgroundProcesses(String packageName) { 3416 try { 3417 getService().killBackgroundProcesses(packageName, 3418 UserHandle.myUserId()); 3419 } catch (RemoteException e) { 3420 throw e.rethrowFromSystemServer(); 3421 } 3422 } 3423 3424 /** 3425 * Kills the specified UID. 3426 * @param uid The UID to kill. 3427 * @param reason The reason for the kill. 3428 * 3429 * @hide 3430 */ 3431 @SystemApi 3432 @RequiresPermission(Manifest.permission.KILL_UID) 3433 public void killUid(int uid, String reason) { 3434 try { 3435 getService().killUid(UserHandle.getAppId(uid), 3436 UserHandle.getUserId(uid), reason); 3437 } catch (RemoteException e) { 3438 throw e.rethrowFromSystemServer(); 3439 } 3440 } 3441 3442 /** 3443 * Have the system perform a force stop of everything associated with 3444 * the given application package. All processes that share its uid 3445 * will be killed, all services it has running stopped, all activities 3446 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3447 * broadcast will be sent, so that any of its registered alarms can 3448 * be stopped, notifications removed, etc. 3449 * 3450 * <p>You must hold the permission 3451 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3452 * call this method. 3453 * 3454 * @param packageName The name of the package to be stopped. 3455 * @param userId The user for which the running package is to be stopped. 3456 * 3457 * @hide This is not available to third party applications due to 3458 * it allowing them to break other applications by stopping their 3459 * services, removing their alarms, etc. 3460 */ 3461 public void forceStopPackageAsUser(String packageName, int userId) { 3462 try { 3463 getService().forceStopPackage(packageName, userId); 3464 } catch (RemoteException e) { 3465 throw e.rethrowFromSystemServer(); 3466 } 3467 } 3468 3469 /** 3470 * @see #forceStopPackageAsUser(String, int) 3471 * @hide 3472 */ 3473 @SystemApi 3474 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3475 public void forceStopPackage(String packageName) { 3476 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3477 } 3478 3479 /** 3480 * Get the device configuration attributes. 3481 */ 3482 public ConfigurationInfo getDeviceConfigurationInfo() { 3483 try { 3484 return getService().getDeviceConfigurationInfo(); 3485 } catch (RemoteException e) { 3486 throw e.rethrowFromSystemServer(); 3487 } 3488 } 3489 3490 /** 3491 * Get the preferred density of icons for the launcher. This is used when 3492 * custom drawables are created (e.g., for shortcuts). 3493 * 3494 * @return density in terms of DPI 3495 */ 3496 public int getLauncherLargeIconDensity() { 3497 final Resources res = mContext.getResources(); 3498 final int density = res.getDisplayMetrics().densityDpi; 3499 final int sw = res.getConfiguration().smallestScreenWidthDp; 3500 3501 if (sw < 600) { 3502 // Smaller than approx 7" tablets, use the regular icon size. 3503 return density; 3504 } 3505 3506 switch (density) { 3507 case DisplayMetrics.DENSITY_LOW: 3508 return DisplayMetrics.DENSITY_MEDIUM; 3509 case DisplayMetrics.DENSITY_MEDIUM: 3510 return DisplayMetrics.DENSITY_HIGH; 3511 case DisplayMetrics.DENSITY_TV: 3512 return DisplayMetrics.DENSITY_XHIGH; 3513 case DisplayMetrics.DENSITY_HIGH: 3514 return DisplayMetrics.DENSITY_XHIGH; 3515 case DisplayMetrics.DENSITY_XHIGH: 3516 return DisplayMetrics.DENSITY_XXHIGH; 3517 case DisplayMetrics.DENSITY_XXHIGH: 3518 return DisplayMetrics.DENSITY_XHIGH * 2; 3519 default: 3520 // The density is some abnormal value. Return some other 3521 // abnormal value that is a reasonable scaling of it. 3522 return (int)((density*1.5f)+.5f); 3523 } 3524 } 3525 3526 /** 3527 * Get the preferred launcher icon size. This is used when custom drawables 3528 * are created (e.g., for shortcuts). 3529 * 3530 * @return dimensions of square icons in terms of pixels 3531 */ 3532 public int getLauncherLargeIconSize() { 3533 return getLauncherLargeIconSizeInner(mContext); 3534 } 3535 3536 static int getLauncherLargeIconSizeInner(Context context) { 3537 final Resources res = context.getResources(); 3538 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3539 final int sw = res.getConfiguration().smallestScreenWidthDp; 3540 3541 if (sw < 600) { 3542 // Smaller than approx 7" tablets, use the regular icon size. 3543 return size; 3544 } 3545 3546 final int density = res.getDisplayMetrics().densityDpi; 3547 3548 switch (density) { 3549 case DisplayMetrics.DENSITY_LOW: 3550 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3551 case DisplayMetrics.DENSITY_MEDIUM: 3552 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3553 case DisplayMetrics.DENSITY_TV: 3554 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3555 case DisplayMetrics.DENSITY_HIGH: 3556 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3557 case DisplayMetrics.DENSITY_XHIGH: 3558 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3559 case DisplayMetrics.DENSITY_XXHIGH: 3560 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3561 default: 3562 // The density is some abnormal value. Return some other 3563 // abnormal value that is a reasonable scaling of it. 3564 return (int)((size*1.5f) + .5f); 3565 } 3566 } 3567 3568 /** 3569 * Returns "true" if the user interface is currently being messed with 3570 * by a monkey. 3571 */ 3572 public static boolean isUserAMonkey() { 3573 try { 3574 return getService().isUserAMonkey(); 3575 } catch (RemoteException e) { 3576 throw e.rethrowFromSystemServer(); 3577 } 3578 } 3579 3580 /** 3581 * Returns "true" if device is running in a test harness. 3582 */ 3583 public static boolean isRunningInTestHarness() { 3584 return SystemProperties.getBoolean("ro.test_harness", false); 3585 } 3586 3587 /** 3588 * Returns the launch count of each installed package. 3589 * 3590 * @hide 3591 */ 3592 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3593 try { 3594 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3595 ServiceManager.getService("usagestats")); 3596 if (usageStatsService == null) { 3597 return new HashMap<String, Integer>(); 3598 } 3599 3600 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3601 ActivityThread.currentPackageName()); 3602 if (allPkgUsageStats == null) { 3603 return new HashMap<String, Integer>(); 3604 } 3605 3606 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3607 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3608 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3609 } 3610 3611 return launchCounts; 3612 } catch (RemoteException e) { 3613 Log.w(TAG, "Could not query launch counts", e); 3614 return new HashMap<String, Integer>(); 3615 } 3616 }*/ 3617 3618 /** @hide */ 3619 public static int checkComponentPermission(String permission, int uid, 3620 int owningUid, boolean exported) { 3621 // Root, system server get to do everything. 3622 final int appId = UserHandle.getAppId(uid); 3623 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3624 return PackageManager.PERMISSION_GRANTED; 3625 } 3626 // Isolated processes don't get any permissions. 3627 if (UserHandle.isIsolated(uid)) { 3628 return PackageManager.PERMISSION_DENIED; 3629 } 3630 // If there is a uid that owns whatever is being accessed, it has 3631 // blanket access to it regardless of the permissions it requires. 3632 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3633 return PackageManager.PERMISSION_GRANTED; 3634 } 3635 // If the target is not exported, then nobody else can get to it. 3636 if (!exported) { 3637 /* 3638 RuntimeException here = new RuntimeException("here"); 3639 here.fillInStackTrace(); 3640 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3641 here); 3642 */ 3643 return PackageManager.PERMISSION_DENIED; 3644 } 3645 if (permission == null) { 3646 return PackageManager.PERMISSION_GRANTED; 3647 } 3648 try { 3649 return AppGlobals.getPackageManager() 3650 .checkUidPermission(permission, uid); 3651 } catch (RemoteException e) { 3652 throw e.rethrowFromSystemServer(); 3653 } 3654 } 3655 3656 /** @hide */ 3657 public static int checkUidPermission(String permission, int uid) { 3658 try { 3659 return AppGlobals.getPackageManager() 3660 .checkUidPermission(permission, uid); 3661 } catch (RemoteException e) { 3662 throw e.rethrowFromSystemServer(); 3663 } 3664 } 3665 3666 /** 3667 * @hide 3668 * Helper for dealing with incoming user arguments to system service calls. 3669 * Takes care of checking permissions and converting USER_CURRENT to the 3670 * actual current user. 3671 * 3672 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3673 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3674 * @param userId The user id argument supplied by the caller -- this is the user 3675 * they want to run as. 3676 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3677 * to get a USER_ALL returned and deal with it correctly. If false, 3678 * an exception will be thrown if USER_ALL is supplied. 3679 * @param requireFull If true, the caller must hold 3680 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3681 * different user than their current process; otherwise they must hold 3682 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3683 * @param name Optional textual name of the incoming call; only for generating error messages. 3684 * @param callerPackage Optional package name of caller; only for error messages. 3685 * 3686 * @return Returns the user ID that the call should run as. Will always be a concrete 3687 * user number, unless <var>allowAll</var> is true in which case it could also be 3688 * USER_ALL. 3689 */ 3690 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3691 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3692 if (UserHandle.getUserId(callingUid) == userId) { 3693 return userId; 3694 } 3695 try { 3696 return getService().handleIncomingUser(callingPid, 3697 callingUid, userId, allowAll, requireFull, name, callerPackage); 3698 } catch (RemoteException e) { 3699 throw e.rethrowFromSystemServer(); 3700 } 3701 } 3702 3703 /** 3704 * Gets the userId of the current foreground user. Requires system permissions. 3705 * @hide 3706 */ 3707 @SystemApi 3708 public static int getCurrentUser() { 3709 UserInfo ui; 3710 try { 3711 ui = getService().getCurrentUser(); 3712 return ui != null ? ui.id : 0; 3713 } catch (RemoteException e) { 3714 throw e.rethrowFromSystemServer(); 3715 } 3716 } 3717 3718 /** 3719 * @param userid the user's id. Zero indicates the default user. 3720 * @hide 3721 */ 3722 public boolean switchUser(int userid) { 3723 try { 3724 return getService().switchUser(userid); 3725 } catch (RemoteException e) { 3726 throw e.rethrowFromSystemServer(); 3727 } 3728 } 3729 3730 /** 3731 * Logs out current current foreground user by switching to the system user and stopping the 3732 * user being switched from. 3733 * @hide 3734 */ 3735 public static void logoutCurrentUser() { 3736 int currentUser = ActivityManager.getCurrentUser(); 3737 if (currentUser != UserHandle.USER_SYSTEM) { 3738 try { 3739 getService().switchUser(UserHandle.USER_SYSTEM); 3740 getService().stopUser(currentUser, /* force= */ false, null); 3741 } catch (RemoteException e) { 3742 e.rethrowFromSystemServer(); 3743 } 3744 } 3745 } 3746 3747 /** {@hide} */ 3748 public static final int FLAG_OR_STOPPED = 1 << 0; 3749 /** {@hide} */ 3750 public static final int FLAG_AND_LOCKED = 1 << 1; 3751 /** {@hide} */ 3752 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3753 /** {@hide} */ 3754 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3755 3756 /** 3757 * Return whether the given user is actively running. This means that 3758 * the user is in the "started" state, not "stopped" -- it is currently 3759 * allowed to run code through scheduled alarms, receiving broadcasts, 3760 * etc. A started user may be either the current foreground user or a 3761 * background user; the result here does not distinguish between the two. 3762 * @param userId the user's id. Zero indicates the default user. 3763 * @hide 3764 */ 3765 public boolean isUserRunning(int userId) { 3766 try { 3767 return getService().isUserRunning(userId, 0); 3768 } catch (RemoteException e) { 3769 throw e.rethrowFromSystemServer(); 3770 } 3771 } 3772 3773 /** {@hide} */ 3774 public boolean isVrModePackageEnabled(ComponentName component) { 3775 try { 3776 return getService().isVrModePackageEnabled(component); 3777 } catch (RemoteException e) { 3778 throw e.rethrowFromSystemServer(); 3779 } 3780 } 3781 3782 /** 3783 * Perform a system dump of various state associated with the given application 3784 * package name. This call blocks while the dump is being performed, so should 3785 * not be done on a UI thread. The data will be written to the given file 3786 * descriptor as text. An application must hold the 3787 * {@link android.Manifest.permission#DUMP} permission to make this call. 3788 * @param fd The file descriptor that the dump should be written to. The file 3789 * descriptor is <em>not</em> closed by this function; the caller continues to 3790 * own it. 3791 * @param packageName The name of the package that is to be dumped. 3792 */ 3793 public void dumpPackageState(FileDescriptor fd, String packageName) { 3794 dumpPackageStateStatic(fd, packageName); 3795 } 3796 3797 /** 3798 * @hide 3799 */ 3800 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3801 FileOutputStream fout = new FileOutputStream(fd); 3802 PrintWriter pw = new FastPrintWriter(fout); 3803 dumpService(pw, fd, "package", new String[] { packageName }); 3804 pw.println(); 3805 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3806 "-a", "package", packageName }); 3807 pw.println(); 3808 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3809 pw.println(); 3810 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3811 pw.println(); 3812 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3813 pw.println(); 3814 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3815 pw.flush(); 3816 } 3817 3818 /** 3819 * @hide 3820 */ 3821 public static boolean isSystemReady() { 3822 if (!sSystemReady) { 3823 if (ActivityThread.isSystem()) { 3824 sSystemReady = 3825 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3826 } else { 3827 // Since this is being called from outside system server, system should be 3828 // ready by now. 3829 sSystemReady = true; 3830 } 3831 } 3832 return sSystemReady; 3833 } 3834 3835 /** 3836 * @hide 3837 */ 3838 public static void broadcastStickyIntent(Intent intent, int userId) { 3839 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3840 } 3841 3842 /** 3843 * Convenience for sending a sticky broadcast. For internal use only. 3844 * 3845 * @hide 3846 */ 3847 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3848 try { 3849 getService().broadcastIntent( 3850 null, intent, null, null, Activity.RESULT_OK, null, null, 3851 null /*permission*/, appOp, null, false, true, userId); 3852 } catch (RemoteException ex) { 3853 } 3854 } 3855 3856 /** 3857 * @hide 3858 */ 3859 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3860 String tag) { 3861 try { 3862 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3863 sourceUid, sourcePkg, tag); 3864 } catch (RemoteException ex) { 3865 } 3866 } 3867 3868 /** 3869 * @hide 3870 */ 3871 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3872 try { 3873 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3874 } catch (RemoteException ex) { 3875 } 3876 } 3877 3878 /** 3879 * @hide 3880 */ 3881 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3882 try { 3883 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3884 } catch (RemoteException ex) { 3885 } 3886 } 3887 3888 /** 3889 * @hide 3890 */ 3891 public static IActivityManager getService() { 3892 return IActivityManagerSingleton.get(); 3893 } 3894 3895 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3896 new Singleton<IActivityManager>() { 3897 @Override 3898 protected IActivityManager create() { 3899 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3900 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3901 return am; 3902 } 3903 }; 3904 3905 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3906 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3907 IBinder service = ServiceManager.checkService(name); 3908 if (service == null) { 3909 pw.println(" (Service not found)"); 3910 return; 3911 } 3912 TransferPipe tp = null; 3913 try { 3914 pw.flush(); 3915 tp = new TransferPipe(); 3916 tp.setBufferPrefix(" "); 3917 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3918 tp.go(fd, 10000); 3919 } catch (Throwable e) { 3920 if (tp != null) { 3921 tp.kill(); 3922 } 3923 pw.println("Failure dumping service:"); 3924 e.printStackTrace(pw); 3925 } 3926 } 3927 3928 /** 3929 * Request that the system start watching for the calling process to exceed a pss 3930 * size as given here. Once called, the system will look for any occasions where it 3931 * sees the associated process with a larger pss size and, when this happens, automatically 3932 * pull a heap dump from it and allow the user to share the data. Note that this request 3933 * continues running even if the process is killed and restarted. To remove the watch, 3934 * use {@link #clearWatchHeapLimit()}. 3935 * 3936 * <p>This API only work if the calling process has been marked as 3937 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3938 * (userdebug or eng) build.</p> 3939 * 3940 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3941 * handle heap limit reports themselves.</p> 3942 * 3943 * @param pssSize The size in bytes to set the limit at. 3944 */ 3945 public void setWatchHeapLimit(long pssSize) { 3946 try { 3947 getService().setDumpHeapDebugLimit(null, 0, pssSize, 3948 mContext.getPackageName()); 3949 } catch (RemoteException e) { 3950 throw e.rethrowFromSystemServer(); 3951 } 3952 } 3953 3954 /** 3955 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3956 * If your package has an activity handling this action, it will be launched with the 3957 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3958 * match the activty must support this action and a MIME type of "*/*". 3959 */ 3960 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3961 3962 /** 3963 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3964 */ 3965 public void clearWatchHeapLimit() { 3966 try { 3967 getService().setDumpHeapDebugLimit(null, 0, 0, null); 3968 } catch (RemoteException e) { 3969 throw e.rethrowFromSystemServer(); 3970 } 3971 } 3972 3973 /** 3974 * @hide 3975 */ 3976 public void startLockTaskMode(int taskId) { 3977 try { 3978 getService().startLockTaskModeById(taskId); 3979 } catch (RemoteException e) { 3980 throw e.rethrowFromSystemServer(); 3981 } 3982 } 3983 3984 /** 3985 * @hide 3986 */ 3987 public void stopLockTaskMode() { 3988 try { 3989 getService().stopLockTaskMode(); 3990 } catch (RemoteException e) { 3991 throw e.rethrowFromSystemServer(); 3992 } 3993 } 3994 3995 /** 3996 * Return whether currently in lock task mode. When in this mode 3997 * no new tasks can be created or switched to. 3998 * 3999 * @see Activity#startLockTask() 4000 * 4001 * @deprecated Use {@link #getLockTaskModeState} instead. 4002 */ 4003 @Deprecated 4004 public boolean isInLockTaskMode() { 4005 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4006 } 4007 4008 /** 4009 * Return the current state of task locking. The three possible outcomes 4010 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4011 * and {@link #LOCK_TASK_MODE_PINNED}. 4012 * 4013 * @see Activity#startLockTask() 4014 */ 4015 public int getLockTaskModeState() { 4016 try { 4017 return getService().getLockTaskModeState(); 4018 } catch (RemoteException e) { 4019 throw e.rethrowFromSystemServer(); 4020 } 4021 } 4022 4023 /** 4024 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4025 * thread can be a VR thread in a process at a time, and that thread may be subject to 4026 * restrictions on the amount of time it can run. 4027 * 4028 * To reset the VR thread for an application, a tid of 0 can be passed. 4029 * 4030 * @see android.os.Process#myTid() 4031 * @param tid tid of the VR thread 4032 */ 4033 public static void setVrThread(int tid) { 4034 try { 4035 getService().setVrThread(tid); 4036 } catch (RemoteException e) { 4037 // pass 4038 } 4039 } 4040 4041 /** 4042 * The AppTask allows you to manage your own application's tasks. 4043 * See {@link android.app.ActivityManager#getAppTasks()} 4044 */ 4045 public static class AppTask { 4046 private IAppTask mAppTaskImpl; 4047 4048 /** @hide */ 4049 public AppTask(IAppTask task) { 4050 mAppTaskImpl = task; 4051 } 4052 4053 /** 4054 * Finishes all activities in this task and removes it from the recent tasks list. 4055 */ 4056 public void finishAndRemoveTask() { 4057 try { 4058 mAppTaskImpl.finishAndRemoveTask(); 4059 } catch (RemoteException e) { 4060 throw e.rethrowFromSystemServer(); 4061 } 4062 } 4063 4064 /** 4065 * Get the RecentTaskInfo associated with this task. 4066 * 4067 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4068 */ 4069 public RecentTaskInfo getTaskInfo() { 4070 try { 4071 return mAppTaskImpl.getTaskInfo(); 4072 } catch (RemoteException e) { 4073 throw e.rethrowFromSystemServer(); 4074 } 4075 } 4076 4077 /** 4078 * Bring this task to the foreground. If it contains activities, they will be 4079 * brought to the foreground with it and their instances re-created if needed. 4080 * If it doesn't contain activities, the root activity of the task will be 4081 * re-launched. 4082 */ 4083 public void moveToFront() { 4084 try { 4085 mAppTaskImpl.moveToFront(); 4086 } catch (RemoteException e) { 4087 throw e.rethrowFromSystemServer(); 4088 } 4089 } 4090 4091 /** 4092 * Start an activity in this task. Brings the task to the foreground. If this task 4093 * is not currently active (that is, its id < 0), then a new activity for the given 4094 * Intent will be launched as the root of the task and the task brought to the 4095 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4096 * an activity to launch in a new task, then a new activity for the given Intent will 4097 * be launched on top of the task and the task brought to the foreground. If this 4098 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4099 * or would otherwise be launched in to a new task, then the activity not launched but 4100 * this task be brought to the foreground and a new intent delivered to the top 4101 * activity if appropriate. 4102 * 4103 * <p>In other words, you generally want to use an Intent here that does not specify 4104 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4105 * and let the system do the right thing.</p> 4106 * 4107 * @param intent The Intent describing the new activity to be launched on the task. 4108 * @param options Optional launch options. 4109 * 4110 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4111 */ 4112 public void startActivity(Context context, Intent intent, Bundle options) { 4113 ActivityThread thread = ActivityThread.currentActivityThread(); 4114 thread.getInstrumentation().execStartActivityFromAppTask(context, 4115 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4116 } 4117 4118 /** 4119 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4120 * Intent of this AppTask. 4121 * 4122 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4123 * be set; otherwise, it will be cleared. 4124 */ 4125 public void setExcludeFromRecents(boolean exclude) { 4126 try { 4127 mAppTaskImpl.setExcludeFromRecents(exclude); 4128 } catch (RemoteException e) { 4129 throw e.rethrowFromSystemServer(); 4130 } 4131 } 4132 } 4133} 4134