ActivityManager.java revision aea6b74e17a0f7b105999adad50dd20eac17df35
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, long procStateSeq) { 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 /** 409 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 410 * for a startForegroundService operation. 411 * @hide 412 */ 413 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 414 415 /** @hide User operation call: success! */ 416 public static final int USER_OP_SUCCESS = 0; 417 418 /** @hide User operation call: given user id is not known. */ 419 public static final int USER_OP_UNKNOWN_USER = -1; 420 421 /** @hide User operation call: given user id is the current user, can't be stopped. */ 422 public static final int USER_OP_IS_CURRENT = -2; 423 424 /** @hide User operation call: system user can't be stopped. */ 425 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 426 427 /** @hide User operation call: one of related users cannot be stopped. */ 428 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 429 430 /** @hide Not a real process state. */ 431 public static final int PROCESS_STATE_UNKNOWN = -1; 432 433 /** @hide Process is a persistent system process. */ 434 public static final int PROCESS_STATE_PERSISTENT = 0; 435 436 /** @hide Process is a persistent system process and is doing UI. */ 437 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 438 439 /** @hide Process is hosting the current top activities. Note that this covers 440 * all activities that are visible to the user. */ 441 public static final int PROCESS_STATE_TOP = 2; 442 443 /** @hide Process is hosting a foreground service due to a system binding. */ 444 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 445 446 /** @hide Process is hosting a foreground service. */ 447 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 448 449 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 450 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 451 452 /** @hide Process is important to the user, and something they are aware of. */ 453 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 454 455 /** @hide Process is important to the user, but not something they are aware of. */ 456 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 457 458 /** @hide Process is in the background running a backup/restore operation. */ 459 public static final int PROCESS_STATE_BACKUP = 8; 460 461 /** @hide Process is in the background, but it can't restore its state so we want 462 * to try to avoid killing it. */ 463 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 464 465 /** @hide Process is in the background running a service. Unlike oom_adj, this level 466 * is used for both the normal running in background state and the executing 467 * operations state. */ 468 public static final int PROCESS_STATE_SERVICE = 10; 469 470 /** @hide Process is in the background running a receiver. Note that from the 471 * perspective of oom_adj receivers run at a higher foreground level, but for our 472 * prioritization here that is not necessary and putting them below services means 473 * many fewer changes in some process states as they receive broadcasts. */ 474 public static final int PROCESS_STATE_RECEIVER = 11; 475 476 /** @hide Process is in the background but hosts the home activity. */ 477 public static final int PROCESS_STATE_HOME = 12; 478 479 /** @hide Process is in the background but hosts the last shown activity. */ 480 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 481 482 /** @hide Process is being cached for later use and contains activities. */ 483 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 484 485 /** @hide Process is being cached for later use and is a client of another cached 486 * process that contains activities. */ 487 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 488 489 /** @hide Process is being cached for later use and is empty. */ 490 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 491 492 /** @hide Process does not exist. */ 493 public static final int PROCESS_STATE_NONEXISTENT = 17; 494 495 /** @hide The lowest process state number */ 496 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 497 498 /** @hide The highest process state number */ 499 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 500 501 /** @hide Should this process state be considered a background state? */ 502 public static final boolean isProcStateBackground(int procState) { 503 return procState >= PROCESS_STATE_BACKUP; 504 } 505 506 /** @hide requestType for assist context: only basic information. */ 507 public static final int ASSIST_CONTEXT_BASIC = 0; 508 509 /** @hide requestType for assist context: generate full AssistStructure. */ 510 public static final int ASSIST_CONTEXT_FULL = 1; 511 512 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 513 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 514 515 /** @hide Flag for registerUidObserver: report changes in process state. */ 516 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 517 518 /** @hide Flag for registerUidObserver: report uid gone. */ 519 public static final int UID_OBSERVER_GONE = 1<<1; 520 521 /** @hide Flag for registerUidObserver: report uid has become idle. */ 522 public static final int UID_OBSERVER_IDLE = 1<<2; 523 524 /** @hide Flag for registerUidObserver: report uid has become active. */ 525 public static final int UID_OBSERVER_ACTIVE = 1<<3; 526 527 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 528 public static final int APP_START_MODE_NORMAL = 0; 529 530 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 531 public static final int APP_START_MODE_DELAYED = 1; 532 533 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 534 * rigid errors (throwing exception). */ 535 public static final int APP_START_MODE_DELAYED_RIGID = 2; 536 537 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 538 * launches; this is the mode for ephemeral apps. */ 539 public static final int APP_START_MODE_DISABLED = 3; 540 541 /** 542 * Lock task mode is not active. 543 */ 544 public static final int LOCK_TASK_MODE_NONE = 0; 545 546 /** 547 * Full lock task mode is active. 548 */ 549 public static final int LOCK_TASK_MODE_LOCKED = 1; 550 551 /** 552 * App pinning mode is active. 553 */ 554 public static final int LOCK_TASK_MODE_PINNED = 2; 555 556 Point mAppTaskThumbnailSize; 557 558 /*package*/ ActivityManager(Context context, Handler handler) { 559 mContext = context; 560 } 561 562 /** 563 * Screen compatibility mode: the application most always run in 564 * compatibility mode. 565 * @hide 566 */ 567 public static final int COMPAT_MODE_ALWAYS = -1; 568 569 /** 570 * Screen compatibility mode: the application can never run in 571 * compatibility mode. 572 * @hide 573 */ 574 public static final int COMPAT_MODE_NEVER = -2; 575 576 /** 577 * Screen compatibility mode: unknown. 578 * @hide 579 */ 580 public static final int COMPAT_MODE_UNKNOWN = -3; 581 582 /** 583 * Screen compatibility mode: the application currently has compatibility 584 * mode disabled. 585 * @hide 586 */ 587 public static final int COMPAT_MODE_DISABLED = 0; 588 589 /** 590 * Screen compatibility mode: the application currently has compatibility 591 * mode enabled. 592 * @hide 593 */ 594 public static final int COMPAT_MODE_ENABLED = 1; 595 596 /** 597 * Screen compatibility mode: request to toggle the application's 598 * compatibility mode. 599 * @hide 600 */ 601 public static final int COMPAT_MODE_TOGGLE = 2; 602 603 /** @hide */ 604 public static class StackId { 605 /** Invalid stack ID. */ 606 public static final int INVALID_STACK_ID = -1; 607 608 /** First static stack ID. */ 609 public static final int FIRST_STATIC_STACK_ID = 0; 610 611 /** Home activity stack ID. */ 612 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 613 614 /** ID of stack where fullscreen activities are normally launched into. */ 615 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 616 617 /** ID of stack where freeform/resized activities are normally launched into. */ 618 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 619 620 /** ID of stack that occupies a dedicated region of the screen. */ 621 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 622 623 /** ID of stack that always on top (always visible) when it exist. */ 624 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 625 626 /** ID of stack that contains the Recents activity. */ 627 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 628 629 /** ID of stack that contains activities launched by the assistant. */ 630 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 631 632 /** Last static stack stack ID. */ 633 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 634 635 /** Start of ID range used by stacks that are created dynamically. */ 636 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 637 638 public static boolean isStaticStack(int stackId) { 639 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 640 } 641 642 public static boolean isDynamicStack(int stackId) { 643 return stackId >= FIRST_DYNAMIC_STACK_ID; 644 } 645 646 /** 647 * Returns true if the activities contained in the input stack display a shadow around 648 * their border. 649 */ 650 public static boolean hasWindowShadow(int stackId) { 651 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 652 } 653 654 /** 655 * Returns true if the activities contained in the input stack display a decor view. 656 */ 657 public static boolean hasWindowDecor(int stackId) { 658 return stackId == FREEFORM_WORKSPACE_STACK_ID; 659 } 660 661 /** 662 * Returns true if the tasks contained in the stack can be resized independently of the 663 * stack. 664 */ 665 public static boolean isTaskResizeAllowed(int stackId) { 666 return stackId == FREEFORM_WORKSPACE_STACK_ID; 667 } 668 669 /** Returns true if the task bounds should persist across power cycles. */ 670 public static boolean persistTaskBounds(int stackId) { 671 return stackId == FREEFORM_WORKSPACE_STACK_ID; 672 } 673 674 /** 675 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 676 */ 677 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 678 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 679 } 680 681 /** 682 * Returns true if we try to maintain focus in the current stack when the top activity 683 * finishes. 684 */ 685 public static boolean keepFocusInStackIfPossible(int stackId) { 686 return stackId == FREEFORM_WORKSPACE_STACK_ID 687 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 688 } 689 690 /** 691 * Returns true if Stack size is affected by the docked stack changing size. 692 */ 693 public static boolean isResizeableByDockedStack(int stackId) { 694 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 695 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 696 } 697 698 /** 699 * Returns true if the size of tasks in the input stack are affected by the docked stack 700 * changing size. 701 */ 702 public static boolean isTaskResizeableByDockedStack(int stackId) { 703 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 704 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 705 && stackId != ASSISTANT_STACK_ID; 706 } 707 708 /** 709 * Returns true if the input stack is affected by drag resizing. 710 */ 711 public static boolean isStackAffectedByDragResizing(int stackId) { 712 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 713 && stackId != ASSISTANT_STACK_ID; 714 } 715 716 /** 717 * Returns true if the windows of tasks being moved to the target stack from the source 718 * stack should be replaced, meaning that window manager will keep the old window around 719 * until the new is ready. 720 */ 721 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 722 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 723 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 724 } 725 726 /** 727 * Return whether a stackId is a stack containing floating windows. Floating windows 728 * are laid out differently as they are allowed to extend past the display bounds 729 * without overscan insets. 730 */ 731 public static boolean tasksAreFloating(int stackId) { 732 return stackId == FREEFORM_WORKSPACE_STACK_ID 733 || stackId == PINNED_STACK_ID; 734 } 735 736 /** 737 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 738 * are generally fullscreen stacks. 739 */ 740 public static boolean isBackdropToTranslucentActivity(int stackId) { 741 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 742 || stackId == ASSISTANT_STACK_ID; 743 } 744 745 /** 746 * Returns true if animation specs should be constructed for app transition that moves 747 * the task to the specified stack. 748 */ 749 public static boolean useAnimationSpecForAppTransition(int stackId) { 750 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 751 // reboots. 752 return stackId == FREEFORM_WORKSPACE_STACK_ID 753 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 754 || stackId == ASSISTANT_STACK_ID 755 || stackId == DOCKED_STACK_ID 756 || stackId == INVALID_STACK_ID; 757 } 758 759 /** 760 * Returns true if the windows in the stack can receive input keys. 761 */ 762 public static boolean canReceiveKeys(int stackId) { 763 return stackId != PINNED_STACK_ID; 764 } 765 766 /** 767 * Returns true if the stack can be visible above lockscreen. 768 */ 769 public static boolean isAllowedOverLockscreen(int stackId) { 770 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 771 stackId == ASSISTANT_STACK_ID; 772 } 773 774 /** 775 * Returns true if activities from stasks in the given {@param stackId} are allowed to 776 * enter picture-in-picture. 777 */ 778 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 779 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 780 stackId != RECENTS_STACK_ID; 781 } 782 783 public static boolean isAlwaysOnTop(int stackId) { 784 return stackId == PINNED_STACK_ID; 785 } 786 787 /** 788 * Returns true if the top task in the task is allowed to return home when finished and 789 * there are other tasks in the stack. 790 */ 791 public static boolean allowTopTaskToReturnHome(int stackId) { 792 return stackId != PINNED_STACK_ID; 793 } 794 795 /** 796 * Returns true if the stack should be resized to match the bounds specified by 797 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 798 */ 799 public static boolean resizeStackWithLaunchBounds(int stackId) { 800 return stackId == PINNED_STACK_ID; 801 } 802 803 /** 804 * Returns true if any visible windows belonging to apps in this stack should be kept on 805 * screen when the app is killed due to something like the low memory killer. 806 */ 807 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 808 return stackId != PINNED_STACK_ID; 809 } 810 811 /** 812 * Returns true if the backdrop on the client side should match the frame of the window. 813 * Returns false, if the backdrop should be fullscreen. 814 */ 815 public static boolean useWindowFrameForBackdrop(int stackId) { 816 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 817 } 818 819 /** 820 * Returns true if a window from the specified stack with {@param stackId} are normally 821 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 822 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 823 * etc. 824 */ 825 public static boolean normallyFullscreenWindows(int stackId) { 826 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 827 && stackId != DOCKED_STACK_ID; 828 } 829 830 /** 831 * Returns true if the input stack id should only be present on a device that supports 832 * multi-window mode. 833 * @see android.app.ActivityManager#supportsMultiWindow 834 */ 835 public static boolean isMultiWindowStack(int stackId) { 836 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 837 || stackId == DOCKED_STACK_ID; 838 } 839 840 /** 841 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 842 */ 843 public static boolean isHomeOrRecentsStack(int stackId) { 844 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 845 } 846 847 /** 848 * Returns true if activities contained in this stack can request visible behind by 849 * calling {@link Activity#requestVisibleBehind}. 850 */ 851 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 852 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 853 stackId == ASSISTANT_STACK_ID; 854 } 855 856 /** 857 * Returns true if this stack may be scaled without resizing, and windows within may need 858 * to be configured as such. 859 */ 860 public static boolean windowsAreScaleable(int stackId) { 861 return stackId == PINNED_STACK_ID; 862 } 863 864 /** 865 * Returns true if windows in this stack should be given move animations by default. 866 */ 867 public static boolean hasMovementAnimations(int stackId) { 868 return stackId != PINNED_STACK_ID; 869 } 870 871 /** Returns true if the input stack and its content can affect the device orientation. */ 872 public static boolean canSpecifyOrientation(int stackId) { 873 return stackId == HOME_STACK_ID 874 || stackId == RECENTS_STACK_ID 875 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 876 || stackId == ASSISTANT_STACK_ID 877 || isDynamicStack(stackId); 878 } 879 } 880 881 /** 882 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 883 * specifies the position of the created docked stack at the top half of the screen if 884 * in portrait mode or at the left half of the screen if in landscape mode. 885 * @hide 886 */ 887 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 888 889 /** 890 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 891 * specifies the position of the created docked stack at the bottom half of the screen if 892 * in portrait mode or at the right half of the screen if in landscape mode. 893 * @hide 894 */ 895 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 896 897 /** 898 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 899 * that the resize doesn't need to preserve the window, and can be skipped if bounds 900 * is unchanged. This mode is used by window manager in most cases. 901 * @hide 902 */ 903 public static final int RESIZE_MODE_SYSTEM = 0; 904 905 /** 906 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 907 * that the resize should preserve the window if possible. 908 * @hide 909 */ 910 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 911 912 /** 913 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 914 * that the resize should be performed even if the bounds appears unchanged. 915 * @hide 916 */ 917 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 918 919 /** 920 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 921 * manager during a screen rotation. 922 * @hide 923 */ 924 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 925 926 /** 927 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 928 * resize is due to a drag action. 929 * @hide 930 */ 931 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 932 933 /** 934 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 935 * that the resize should preserve the window if possible, and should not be skipped 936 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 937 * is ending. 938 * @hide 939 */ 940 public static final int RESIZE_MODE_USER_FORCED = 941 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 942 943 /** @hide */ 944 public int getFrontActivityScreenCompatMode() { 945 try { 946 return getService().getFrontActivityScreenCompatMode(); 947 } catch (RemoteException e) { 948 throw e.rethrowFromSystemServer(); 949 } 950 } 951 952 /** @hide */ 953 public void setFrontActivityScreenCompatMode(int mode) { 954 try { 955 getService().setFrontActivityScreenCompatMode(mode); 956 } catch (RemoteException e) { 957 throw e.rethrowFromSystemServer(); 958 } 959 } 960 961 /** @hide */ 962 public int getPackageScreenCompatMode(String packageName) { 963 try { 964 return getService().getPackageScreenCompatMode(packageName); 965 } catch (RemoteException e) { 966 throw e.rethrowFromSystemServer(); 967 } 968 } 969 970 /** @hide */ 971 public void setPackageScreenCompatMode(String packageName, int mode) { 972 try { 973 getService().setPackageScreenCompatMode(packageName, mode); 974 } catch (RemoteException e) { 975 throw e.rethrowFromSystemServer(); 976 } 977 } 978 979 /** @hide */ 980 public boolean getPackageAskScreenCompat(String packageName) { 981 try { 982 return getService().getPackageAskScreenCompat(packageName); 983 } catch (RemoteException e) { 984 throw e.rethrowFromSystemServer(); 985 } 986 } 987 988 /** @hide */ 989 public void setPackageAskScreenCompat(String packageName, boolean ask) { 990 try { 991 getService().setPackageAskScreenCompat(packageName, ask); 992 } catch (RemoteException e) { 993 throw e.rethrowFromSystemServer(); 994 } 995 } 996 997 /** 998 * Return the approximate per-application memory class of the current 999 * device. This gives you an idea of how hard a memory limit you should 1000 * impose on your application to let the overall system work best. The 1001 * returned value is in megabytes; the baseline Android memory class is 1002 * 16 (which happens to be the Java heap limit of those devices); some 1003 * device with more memory may return 24 or even higher numbers. 1004 */ 1005 public int getMemoryClass() { 1006 return staticGetMemoryClass(); 1007 } 1008 1009 /** @hide */ 1010 static public int staticGetMemoryClass() { 1011 // Really brain dead right now -- just take this from the configured 1012 // vm heap size, and assume it is in megabytes and thus ends with "m". 1013 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1014 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1015 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1016 } 1017 return staticGetLargeMemoryClass(); 1018 } 1019 1020 /** 1021 * Return the approximate per-application memory class of the current 1022 * device when an application is running with a large heap. This is the 1023 * space available for memory-intensive applications; most applications 1024 * should not need this amount of memory, and should instead stay with the 1025 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1026 * This may be the same size as {@link #getMemoryClass()} on memory 1027 * constrained devices, or it may be significantly larger on devices with 1028 * a large amount of available RAM. 1029 * 1030 * <p>The is the size of the application's Dalvik heap if it has 1031 * specified <code>android:largeHeap="true"</code> in its manifest. 1032 */ 1033 public int getLargeMemoryClass() { 1034 return staticGetLargeMemoryClass(); 1035 } 1036 1037 /** @hide */ 1038 static public int staticGetLargeMemoryClass() { 1039 // Really brain dead right now -- just take this from the configured 1040 // vm heap size, and assume it is in megabytes and thus ends with "m". 1041 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1042 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1043 } 1044 1045 /** 1046 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1047 * is ultimately up to the device configuration, but currently it generally means 1048 * something in the class of a 512MB device with about a 800x480 or less screen. 1049 * This is mostly intended to be used by apps to determine whether they should turn 1050 * off certain features that require more RAM. 1051 */ 1052 public boolean isLowRamDevice() { 1053 return isLowRamDeviceStatic(); 1054 } 1055 1056 /** @hide */ 1057 public static boolean isLowRamDeviceStatic() { 1058 return RoSystemProperties.CONFIG_LOW_RAM; 1059 } 1060 1061 /** 1062 * Used by persistent processes to determine if they are running on a 1063 * higher-end device so should be okay using hardware drawing acceleration 1064 * (which tends to consume a lot more RAM). 1065 * @hide 1066 */ 1067 static public boolean isHighEndGfx() { 1068 return !isLowRamDeviceStatic() && 1069 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1070 } 1071 1072 /** 1073 * Return the maximum number of recents entries that we will maintain and show. 1074 * @hide 1075 */ 1076 static public int getMaxRecentTasksStatic() { 1077 if (gMaxRecentTasks < 0) { 1078 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1079 } 1080 return gMaxRecentTasks; 1081 } 1082 1083 /** 1084 * Return the default limit on the number of recents that an app can make. 1085 * @hide 1086 */ 1087 static public int getDefaultAppRecentsLimitStatic() { 1088 return getMaxRecentTasksStatic() / 6; 1089 } 1090 1091 /** 1092 * Return the maximum limit on the number of recents that an app can make. 1093 * @hide 1094 */ 1095 static public int getMaxAppRecentsLimitStatic() { 1096 return getMaxRecentTasksStatic() / 2; 1097 } 1098 1099 /** 1100 * Returns true if the system supports at least one form of multi-window. 1101 * E.g. freeform, split-screen, picture-in-picture. 1102 * @hide 1103 */ 1104 static public boolean supportsMultiWindow() { 1105 return !isLowRamDeviceStatic() 1106 && Resources.getSystem().getBoolean( 1107 com.android.internal.R.bool.config_supportsMultiWindow); 1108 } 1109 1110 /** 1111 * Returns true if the system supports split screen multi-window. 1112 * @hide 1113 */ 1114 static public boolean supportsSplitScreenMultiWindow() { 1115 return supportsMultiWindow() 1116 && Resources.getSystem().getBoolean( 1117 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1118 } 1119 1120 /** 1121 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1122 * the user interacts with the activity currently in picture-in-picture mode. 1123 */ 1124 public static int getMaxNumPictureInPictureActions() { 1125 return NUM_ALLOWED_PIP_ACTIONS; 1126 } 1127 1128 /** 1129 * Information you can set and retrieve about the current activity within the recent task list. 1130 */ 1131 public static class TaskDescription implements Parcelable { 1132 /** @hide */ 1133 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1134 private static final String ATTR_TASKDESCRIPTIONLABEL = 1135 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1136 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1137 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1138 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1139 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1140 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1141 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1142 1143 private String mLabel; 1144 private Bitmap mIcon; 1145 private String mIconFilename; 1146 private int mColorPrimary; 1147 private int mColorBackground; 1148 private int mStatusBarColor; 1149 private int mNavigationBarColor; 1150 1151 /** 1152 * Creates the TaskDescription to the specified values. 1153 * 1154 * @param label A label and description of the current state of this task. 1155 * @param icon An icon that represents the current state of this task. 1156 * @param colorPrimary A color to override the theme's primary color. This color must be 1157 * opaque. 1158 */ 1159 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1160 this(label, icon, null, colorPrimary, 0, 0, 0); 1161 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1162 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1163 } 1164 } 1165 1166 /** 1167 * Creates the TaskDescription to the specified values. 1168 * 1169 * @param label A label and description of the current state of this activity. 1170 * @param icon An icon that represents the current state of this activity. 1171 */ 1172 public TaskDescription(String label, Bitmap icon) { 1173 this(label, icon, null, 0, 0, 0, 0); 1174 } 1175 1176 /** 1177 * Creates the TaskDescription to the specified values. 1178 * 1179 * @param label A label and description of the current state of this activity. 1180 */ 1181 public TaskDescription(String label) { 1182 this(label, null, null, 0, 0, 0, 0); 1183 } 1184 1185 /** 1186 * Creates an empty TaskDescription. 1187 */ 1188 public TaskDescription() { 1189 this(null, null, null, 0, 0, 0, 0); 1190 } 1191 1192 /** @hide */ 1193 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1194 int colorBackground, int statusBarColor, int navigationBarColor) { 1195 mLabel = label; 1196 mIcon = icon; 1197 mIconFilename = iconFilename; 1198 mColorPrimary = colorPrimary; 1199 mColorBackground = colorBackground; 1200 mStatusBarColor = statusBarColor; 1201 mNavigationBarColor = navigationBarColor; 1202 } 1203 1204 /** 1205 * Creates a copy of another TaskDescription. 1206 */ 1207 public TaskDescription(TaskDescription td) { 1208 copyFrom(td); 1209 } 1210 1211 /** 1212 * Copies this the values from another TaskDescription. 1213 * @hide 1214 */ 1215 public void copyFrom(TaskDescription other) { 1216 mLabel = other.mLabel; 1217 mIcon = other.mIcon; 1218 mIconFilename = other.mIconFilename; 1219 mColorPrimary = other.mColorPrimary; 1220 mColorBackground = other.mColorBackground; 1221 mStatusBarColor = other.mStatusBarColor; 1222 mNavigationBarColor = other.mNavigationBarColor; 1223 } 1224 1225 private TaskDescription(Parcel source) { 1226 readFromParcel(source); 1227 } 1228 1229 /** 1230 * Sets the label for this task description. 1231 * @hide 1232 */ 1233 public void setLabel(String label) { 1234 mLabel = label; 1235 } 1236 1237 /** 1238 * Sets the primary color for this task description. 1239 * @hide 1240 */ 1241 public void setPrimaryColor(int primaryColor) { 1242 // Ensure that the given color is valid 1243 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1244 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1245 } 1246 mColorPrimary = primaryColor; 1247 } 1248 1249 /** 1250 * Sets the background color for this task description. 1251 * @hide 1252 */ 1253 public void setBackgroundColor(int backgroundColor) { 1254 // Ensure that the given color is valid 1255 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1256 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1257 } 1258 mColorBackground = backgroundColor; 1259 } 1260 1261 /** 1262 * @hide 1263 */ 1264 public void setStatusBarColor(int statusBarColor) { 1265 mStatusBarColor = statusBarColor; 1266 } 1267 1268 /** 1269 * @hide 1270 */ 1271 public void setNavigationBarColor(int navigationBarColor) { 1272 mNavigationBarColor = navigationBarColor; 1273 } 1274 1275 /** 1276 * Sets the icon for this task description. 1277 * @hide 1278 */ 1279 public void setIcon(Bitmap icon) { 1280 mIcon = icon; 1281 } 1282 1283 /** 1284 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1285 * bitmap. 1286 * @hide 1287 */ 1288 public void setIconFilename(String iconFilename) { 1289 mIconFilename = iconFilename; 1290 mIcon = null; 1291 } 1292 1293 /** 1294 * @return The label and description of the current state of this task. 1295 */ 1296 public String getLabel() { 1297 return mLabel; 1298 } 1299 1300 /** 1301 * @return The icon that represents the current state of this task. 1302 */ 1303 public Bitmap getIcon() { 1304 if (mIcon != null) { 1305 return mIcon; 1306 } 1307 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1308 } 1309 1310 /** @hide */ 1311 public String getIconFilename() { 1312 return mIconFilename; 1313 } 1314 1315 /** @hide */ 1316 public Bitmap getInMemoryIcon() { 1317 return mIcon; 1318 } 1319 1320 /** @hide */ 1321 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1322 if (iconFilename != null) { 1323 try { 1324 return getService().getTaskDescriptionIcon(iconFilename, 1325 userId); 1326 } catch (RemoteException e) { 1327 throw e.rethrowFromSystemServer(); 1328 } 1329 } 1330 return null; 1331 } 1332 1333 /** 1334 * @return The color override on the theme's primary color. 1335 */ 1336 public int getPrimaryColor() { 1337 return mColorPrimary; 1338 } 1339 1340 /** 1341 * @return The background color. 1342 * @hide 1343 */ 1344 public int getBackgroundColor() { 1345 return mColorBackground; 1346 } 1347 1348 /** 1349 * @hide 1350 */ 1351 public int getStatusBarColor() { 1352 return mStatusBarColor; 1353 } 1354 1355 /** 1356 * @hide 1357 */ 1358 public int getNavigationBarColor() { 1359 return mNavigationBarColor; 1360 } 1361 1362 /** @hide */ 1363 public void saveToXml(XmlSerializer out) throws IOException { 1364 if (mLabel != null) { 1365 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1366 } 1367 if (mColorPrimary != 0) { 1368 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1369 Integer.toHexString(mColorPrimary)); 1370 } 1371 if (mColorBackground != 0) { 1372 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1373 Integer.toHexString(mColorBackground)); 1374 } 1375 if (mIconFilename != null) { 1376 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1377 } 1378 } 1379 1380 /** @hide */ 1381 public void restoreFromXml(String attrName, String attrValue) { 1382 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1383 setLabel(attrValue); 1384 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1385 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1386 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1387 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1388 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1389 setIconFilename(attrValue); 1390 } 1391 } 1392 1393 @Override 1394 public int describeContents() { 1395 return 0; 1396 } 1397 1398 @Override 1399 public void writeToParcel(Parcel dest, int flags) { 1400 if (mLabel == null) { 1401 dest.writeInt(0); 1402 } else { 1403 dest.writeInt(1); 1404 dest.writeString(mLabel); 1405 } 1406 if (mIcon == null) { 1407 dest.writeInt(0); 1408 } else { 1409 dest.writeInt(1); 1410 mIcon.writeToParcel(dest, 0); 1411 } 1412 dest.writeInt(mColorPrimary); 1413 dest.writeInt(mColorBackground); 1414 dest.writeInt(mStatusBarColor); 1415 dest.writeInt(mNavigationBarColor); 1416 if (mIconFilename == null) { 1417 dest.writeInt(0); 1418 } else { 1419 dest.writeInt(1); 1420 dest.writeString(mIconFilename); 1421 } 1422 } 1423 1424 public void readFromParcel(Parcel source) { 1425 mLabel = source.readInt() > 0 ? source.readString() : null; 1426 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1427 mColorPrimary = source.readInt(); 1428 mColorBackground = source.readInt(); 1429 mStatusBarColor = source.readInt(); 1430 mNavigationBarColor = source.readInt(); 1431 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1432 } 1433 1434 public static final Creator<TaskDescription> CREATOR 1435 = new Creator<TaskDescription>() { 1436 public TaskDescription createFromParcel(Parcel source) { 1437 return new TaskDescription(source); 1438 } 1439 public TaskDescription[] newArray(int size) { 1440 return new TaskDescription[size]; 1441 } 1442 }; 1443 1444 @Override 1445 public String toString() { 1446 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1447 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1448 " colorBackground: " + mColorBackground + 1449 " statusBarColor: " + mColorBackground + 1450 " navigationBarColor: " + mNavigationBarColor; 1451 } 1452 } 1453 1454 /** 1455 * Information you can retrieve about tasks that the user has most recently 1456 * started or visited. 1457 */ 1458 public static class RecentTaskInfo implements Parcelable { 1459 /** 1460 * If this task is currently running, this is the identifier for it. 1461 * If it is not running, this will be -1. 1462 */ 1463 public int id; 1464 1465 /** 1466 * The true identifier of this task, valid even if it is not running. 1467 */ 1468 public int persistentId; 1469 1470 /** 1471 * The original Intent used to launch the task. You can use this 1472 * Intent to re-launch the task (if it is no longer running) or bring 1473 * the current task to the front. 1474 */ 1475 public Intent baseIntent; 1476 1477 /** 1478 * If this task was started from an alias, this is the actual 1479 * activity component that was initially started; the component of 1480 * the baseIntent in this case is the name of the actual activity 1481 * implementation that the alias referred to. Otherwise, this is null. 1482 */ 1483 public ComponentName origActivity; 1484 1485 /** 1486 * The actual activity component that started the task. 1487 * @hide 1488 */ 1489 @Nullable 1490 public ComponentName realActivity; 1491 1492 /** 1493 * Description of the task's last state. 1494 */ 1495 public CharSequence description; 1496 1497 /** 1498 * The id of the ActivityStack this Task was on most recently. 1499 * @hide 1500 */ 1501 public int stackId; 1502 1503 /** 1504 * The id of the user the task was running as. 1505 * @hide 1506 */ 1507 public int userId; 1508 1509 /** 1510 * The first time this task was active. 1511 * @hide 1512 */ 1513 public long firstActiveTime; 1514 1515 /** 1516 * The last time this task was active. 1517 * @hide 1518 */ 1519 public long lastActiveTime; 1520 1521 /** 1522 * The recent activity values for the highest activity in the stack to have set the values. 1523 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1524 */ 1525 public TaskDescription taskDescription; 1526 1527 /** 1528 * Task affiliation for grouping with other tasks. 1529 */ 1530 public int affiliatedTaskId; 1531 1532 /** 1533 * Task affiliation color of the source task with the affiliated task id. 1534 * 1535 * @hide 1536 */ 1537 public int affiliatedTaskColor; 1538 1539 /** 1540 * The component launched as the first activity in the task. 1541 * This can be considered the "application" of this task. 1542 */ 1543 public ComponentName baseActivity; 1544 1545 /** 1546 * The activity component at the top of the history stack of the task. 1547 * This is what the user is currently doing. 1548 */ 1549 public ComponentName topActivity; 1550 1551 /** 1552 * Number of activities in this task. 1553 */ 1554 public int numActivities; 1555 1556 /** 1557 * The bounds of the task. 1558 * @hide 1559 */ 1560 public Rect bounds; 1561 1562 /** 1563 * True if the task can go in the docked stack. 1564 * @hide 1565 */ 1566 public boolean supportsSplitScreenMultiWindow; 1567 1568 /** 1569 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1570 * @hide 1571 */ 1572 public int resizeMode; 1573 1574 public RecentTaskInfo() { 1575 } 1576 1577 @Override 1578 public int describeContents() { 1579 return 0; 1580 } 1581 1582 @Override 1583 public void writeToParcel(Parcel dest, int flags) { 1584 dest.writeInt(id); 1585 dest.writeInt(persistentId); 1586 if (baseIntent != null) { 1587 dest.writeInt(1); 1588 baseIntent.writeToParcel(dest, 0); 1589 } else { 1590 dest.writeInt(0); 1591 } 1592 ComponentName.writeToParcel(origActivity, dest); 1593 ComponentName.writeToParcel(realActivity, dest); 1594 TextUtils.writeToParcel(description, dest, 1595 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1596 if (taskDescription != null) { 1597 dest.writeInt(1); 1598 taskDescription.writeToParcel(dest, 0); 1599 } else { 1600 dest.writeInt(0); 1601 } 1602 dest.writeInt(stackId); 1603 dest.writeInt(userId); 1604 dest.writeLong(firstActiveTime); 1605 dest.writeLong(lastActiveTime); 1606 dest.writeInt(affiliatedTaskId); 1607 dest.writeInt(affiliatedTaskColor); 1608 ComponentName.writeToParcel(baseActivity, dest); 1609 ComponentName.writeToParcel(topActivity, dest); 1610 dest.writeInt(numActivities); 1611 if (bounds != null) { 1612 dest.writeInt(1); 1613 bounds.writeToParcel(dest, 0); 1614 } else { 1615 dest.writeInt(0); 1616 } 1617 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1618 dest.writeInt(resizeMode); 1619 } 1620 1621 public void readFromParcel(Parcel source) { 1622 id = source.readInt(); 1623 persistentId = source.readInt(); 1624 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1625 origActivity = ComponentName.readFromParcel(source); 1626 realActivity = ComponentName.readFromParcel(source); 1627 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1628 taskDescription = source.readInt() > 0 ? 1629 TaskDescription.CREATOR.createFromParcel(source) : null; 1630 stackId = source.readInt(); 1631 userId = source.readInt(); 1632 firstActiveTime = source.readLong(); 1633 lastActiveTime = source.readLong(); 1634 affiliatedTaskId = source.readInt(); 1635 affiliatedTaskColor = source.readInt(); 1636 baseActivity = ComponentName.readFromParcel(source); 1637 topActivity = ComponentName.readFromParcel(source); 1638 numActivities = source.readInt(); 1639 bounds = source.readInt() > 0 ? 1640 Rect.CREATOR.createFromParcel(source) : null; 1641 supportsSplitScreenMultiWindow = source.readInt() == 1; 1642 resizeMode = source.readInt(); 1643 } 1644 1645 public static final Creator<RecentTaskInfo> CREATOR 1646 = new Creator<RecentTaskInfo>() { 1647 public RecentTaskInfo createFromParcel(Parcel source) { 1648 return new RecentTaskInfo(source); 1649 } 1650 public RecentTaskInfo[] newArray(int size) { 1651 return new RecentTaskInfo[size]; 1652 } 1653 }; 1654 1655 private RecentTaskInfo(Parcel source) { 1656 readFromParcel(source); 1657 } 1658 } 1659 1660 /** 1661 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1662 * that have set their 1663 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1664 */ 1665 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1666 1667 /** 1668 * Provides a list that does not contain any 1669 * recent tasks that currently are not available to the user. 1670 */ 1671 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1672 1673 /** 1674 * Provides a list that contains recent tasks for all 1675 * profiles of a user. 1676 * @hide 1677 */ 1678 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1679 1680 /** 1681 * Ignores all tasks that are on the home stack. 1682 * @hide 1683 */ 1684 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1685 1686 /** 1687 * Ignores the top task in the docked stack. 1688 * @hide 1689 */ 1690 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1691 1692 /** 1693 * Ignores all tasks that are on the pinned stack. 1694 * @hide 1695 */ 1696 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1697 1698 /** 1699 * <p></p>Return a list of the tasks that the user has recently launched, with 1700 * the most recent being first and older ones after in order. 1701 * 1702 * <p><b>Note: this method is only intended for debugging and presenting 1703 * task management user interfaces</b>. This should never be used for 1704 * core logic in an application, such as deciding between different 1705 * behaviors based on the information found here. Such uses are 1706 * <em>not</em> supported, and will likely break in the future. For 1707 * example, if multiple applications can be actively running at the 1708 * same time, assumptions made about the meaning of the data here for 1709 * purposes of control flow will be incorrect.</p> 1710 * 1711 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1712 * no longer available to third party applications: the introduction of 1713 * document-centric recents means 1714 * it can leak personal information to the caller. For backwards compatibility, 1715 * it will still return a small subset of its data: at least the caller's 1716 * own tasks (though see {@link #getAppTasks()} for the correct supported 1717 * way to retrieve that information), and possibly some other tasks 1718 * such as home that are known to not be sensitive. 1719 * 1720 * @param maxNum The maximum number of entries to return in the list. The 1721 * actual number returned may be smaller, depending on how many tasks the 1722 * user has started and the maximum number the system can remember. 1723 * @param flags Information about what to return. May be any combination 1724 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1725 * 1726 * @return Returns a list of RecentTaskInfo records describing each of 1727 * the recent tasks. 1728 */ 1729 @Deprecated 1730 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1731 throws SecurityException { 1732 try { 1733 return getService().getRecentTasks(maxNum, 1734 flags, UserHandle.myUserId()).getList(); 1735 } catch (RemoteException e) { 1736 throw e.rethrowFromSystemServer(); 1737 } 1738 } 1739 1740 /** 1741 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1742 * specific user. It requires holding 1743 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1744 * @param maxNum The maximum number of entries to return in the list. The 1745 * actual number returned may be smaller, depending on how many tasks the 1746 * user has started and the maximum number the system can remember. 1747 * @param flags Information about what to return. May be any combination 1748 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1749 * 1750 * @return Returns a list of RecentTaskInfo records describing each of 1751 * the recent tasks. Most recently activated tasks go first. 1752 * 1753 * @hide 1754 */ 1755 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1756 throws SecurityException { 1757 try { 1758 return getService().getRecentTasks(maxNum, 1759 flags, userId).getList(); 1760 } catch (RemoteException e) { 1761 throw e.rethrowFromSystemServer(); 1762 } 1763 } 1764 1765 /** 1766 * Information you can retrieve about a particular task that is currently 1767 * "running" in the system. Note that a running task does not mean the 1768 * given task actually has a process it is actively running in; it simply 1769 * means that the user has gone to it and never closed it, but currently 1770 * the system may have killed its process and is only holding on to its 1771 * last state in order to restart it when the user returns. 1772 */ 1773 public static class RunningTaskInfo implements Parcelable { 1774 /** 1775 * A unique identifier for this task. 1776 */ 1777 public int id; 1778 1779 /** 1780 * The stack that currently contains this task. 1781 * @hide 1782 */ 1783 public int stackId; 1784 1785 /** 1786 * The component launched as the first activity in the task. This can 1787 * be considered the "application" of this task. 1788 */ 1789 public ComponentName baseActivity; 1790 1791 /** 1792 * The activity component at the top of the history stack of the task. 1793 * This is what the user is currently doing. 1794 */ 1795 public ComponentName topActivity; 1796 1797 /** 1798 * Thumbnail representation of the task's current state. Currently 1799 * always null. 1800 */ 1801 public Bitmap thumbnail; 1802 1803 /** 1804 * Description of the task's current state. 1805 */ 1806 public CharSequence description; 1807 1808 /** 1809 * Number of activities in this task. 1810 */ 1811 public int numActivities; 1812 1813 /** 1814 * Number of activities that are currently running (not stopped 1815 * and persisted) in this task. 1816 */ 1817 public int numRunning; 1818 1819 /** 1820 * Last time task was run. For sorting. 1821 * @hide 1822 */ 1823 public long lastActiveTime; 1824 1825 /** 1826 * True if the task can go in the docked stack. 1827 * @hide 1828 */ 1829 public boolean supportsSplitScreenMultiWindow; 1830 1831 /** 1832 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1833 * @hide 1834 */ 1835 public int resizeMode; 1836 1837 public RunningTaskInfo() { 1838 } 1839 1840 public int describeContents() { 1841 return 0; 1842 } 1843 1844 public void writeToParcel(Parcel dest, int flags) { 1845 dest.writeInt(id); 1846 dest.writeInt(stackId); 1847 ComponentName.writeToParcel(baseActivity, dest); 1848 ComponentName.writeToParcel(topActivity, dest); 1849 if (thumbnail != null) { 1850 dest.writeInt(1); 1851 thumbnail.writeToParcel(dest, 0); 1852 } else { 1853 dest.writeInt(0); 1854 } 1855 TextUtils.writeToParcel(description, dest, 1856 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1857 dest.writeInt(numActivities); 1858 dest.writeInt(numRunning); 1859 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1860 dest.writeInt(resizeMode); 1861 } 1862 1863 public void readFromParcel(Parcel source) { 1864 id = source.readInt(); 1865 stackId = source.readInt(); 1866 baseActivity = ComponentName.readFromParcel(source); 1867 topActivity = ComponentName.readFromParcel(source); 1868 if (source.readInt() != 0) { 1869 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1870 } else { 1871 thumbnail = null; 1872 } 1873 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1874 numActivities = source.readInt(); 1875 numRunning = source.readInt(); 1876 supportsSplitScreenMultiWindow = source.readInt() != 0; 1877 resizeMode = source.readInt(); 1878 } 1879 1880 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1881 public RunningTaskInfo createFromParcel(Parcel source) { 1882 return new RunningTaskInfo(source); 1883 } 1884 public RunningTaskInfo[] newArray(int size) { 1885 return new RunningTaskInfo[size]; 1886 } 1887 }; 1888 1889 private RunningTaskInfo(Parcel source) { 1890 readFromParcel(source); 1891 } 1892 } 1893 1894 /** 1895 * Get the list of tasks associated with the calling application. 1896 * 1897 * @return The list of tasks associated with the application making this call. 1898 * @throws SecurityException 1899 */ 1900 public List<ActivityManager.AppTask> getAppTasks() { 1901 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1902 List<IBinder> appTasks; 1903 try { 1904 appTasks = getService().getAppTasks(mContext.getPackageName()); 1905 } catch (RemoteException e) { 1906 throw e.rethrowFromSystemServer(); 1907 } 1908 int numAppTasks = appTasks.size(); 1909 for (int i = 0; i < numAppTasks; i++) { 1910 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1911 } 1912 return tasks; 1913 } 1914 1915 /** 1916 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1917 * with {@link #addAppTask}. 1918 */ 1919 public Size getAppTaskThumbnailSize() { 1920 synchronized (this) { 1921 ensureAppTaskThumbnailSizeLocked(); 1922 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1923 } 1924 } 1925 1926 private void ensureAppTaskThumbnailSizeLocked() { 1927 if (mAppTaskThumbnailSize == null) { 1928 try { 1929 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1930 } catch (RemoteException e) { 1931 throw e.rethrowFromSystemServer(); 1932 } 1933 } 1934 } 1935 1936 /** 1937 * Add a new {@link AppTask} for the calling application. This will create a new 1938 * recents entry that is added to the <b>end</b> of all existing recents. 1939 * 1940 * @param activity The activity that is adding the entry. This is used to help determine 1941 * the context that the new recents entry will be in. 1942 * @param intent The Intent that describes the recents entry. This is the same Intent that 1943 * you would have used to launch the activity for it. In generally you will want to set 1944 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1945 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1946 * entry will exist without an activity, so it doesn't make sense to not retain it when 1947 * its activity disappears. The given Intent here also must have an explicit ComponentName 1948 * set on it. 1949 * @param description Optional additional description information. 1950 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1951 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1952 * recreated in your process, probably in a way you don't like, before the recents entry 1953 * is added. 1954 * 1955 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1956 * most likely cause of failure is that there is no more room for more tasks for your app. 1957 */ 1958 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1959 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1960 Point size; 1961 synchronized (this) { 1962 ensureAppTaskThumbnailSizeLocked(); 1963 size = mAppTaskThumbnailSize; 1964 } 1965 final int tw = thumbnail.getWidth(); 1966 final int th = thumbnail.getHeight(); 1967 if (tw != size.x || th != size.y) { 1968 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1969 1970 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1971 float scale; 1972 float dx = 0, dy = 0; 1973 if (tw * size.x > size.y * th) { 1974 scale = (float) size.x / (float) th; 1975 dx = (size.y - tw * scale) * 0.5f; 1976 } else { 1977 scale = (float) size.y / (float) tw; 1978 dy = (size.x - th * scale) * 0.5f; 1979 } 1980 Matrix matrix = new Matrix(); 1981 matrix.setScale(scale, scale); 1982 matrix.postTranslate((int) (dx + 0.5f), 0); 1983 1984 Canvas canvas = new Canvas(bm); 1985 canvas.drawBitmap(thumbnail, matrix, null); 1986 canvas.setBitmap(null); 1987 1988 thumbnail = bm; 1989 } 1990 if (description == null) { 1991 description = new TaskDescription(); 1992 } 1993 try { 1994 return getService().addAppTask(activity.getActivityToken(), 1995 intent, description, thumbnail); 1996 } catch (RemoteException e) { 1997 throw e.rethrowFromSystemServer(); 1998 } 1999 } 2000 2001 /** 2002 * Return a list of the tasks that are currently running, with 2003 * the most recent being first and older ones after in order. Note that 2004 * "running" does not mean any of the task's code is currently loaded or 2005 * activity -- the task may have been frozen by the system, so that it 2006 * can be restarted in its previous state when next brought to the 2007 * foreground. 2008 * 2009 * <p><b>Note: this method is only intended for debugging and presenting 2010 * task management user interfaces</b>. This should never be used for 2011 * core logic in an application, such as deciding between different 2012 * behaviors based on the information found here. Such uses are 2013 * <em>not</em> supported, and will likely break in the future. For 2014 * example, if multiple applications can be actively running at the 2015 * same time, assumptions made about the meaning of the data here for 2016 * purposes of control flow will be incorrect.</p> 2017 * 2018 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2019 * is no longer available to third party 2020 * applications: the introduction of document-centric recents means 2021 * it can leak person information to the caller. For backwards compatibility, 2022 * it will still retu rn a small subset of its data: at least the caller's 2023 * own tasks, and possibly some other tasks 2024 * such as home that are known to not be sensitive. 2025 * 2026 * @param maxNum The maximum number of entries to return in the list. The 2027 * actual number returned may be smaller, depending on how many tasks the 2028 * user has started. 2029 * 2030 * @return Returns a list of RunningTaskInfo records describing each of 2031 * the running tasks. 2032 */ 2033 @Deprecated 2034 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2035 throws SecurityException { 2036 try { 2037 return getService().getTasks(maxNum, 0); 2038 } catch (RemoteException e) { 2039 throw e.rethrowFromSystemServer(); 2040 } 2041 } 2042 2043 /** 2044 * Completely remove the given task. 2045 * 2046 * @param taskId Identifier of the task to be removed. 2047 * @return Returns true if the given task was found and removed. 2048 * 2049 * @hide 2050 */ 2051 public boolean removeTask(int taskId) throws SecurityException { 2052 try { 2053 return getService().removeTask(taskId); 2054 } catch (RemoteException e) { 2055 throw e.rethrowFromSystemServer(); 2056 } 2057 } 2058 2059 /** 2060 * Metadata related to the {@link TaskThumbnail}. 2061 * 2062 * @hide 2063 */ 2064 public static class TaskThumbnailInfo implements Parcelable { 2065 /** @hide */ 2066 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2067 private static final String ATTR_TASK_WIDTH = 2068 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2069 private static final String ATTR_TASK_HEIGHT = 2070 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2071 private static final String ATTR_SCREEN_ORIENTATION = 2072 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2073 2074 public int taskWidth; 2075 public int taskHeight; 2076 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2077 2078 public TaskThumbnailInfo() { 2079 // Do nothing 2080 } 2081 2082 private TaskThumbnailInfo(Parcel source) { 2083 readFromParcel(source); 2084 } 2085 2086 /** 2087 * Resets this info state to the initial state. 2088 * @hide 2089 */ 2090 public void reset() { 2091 taskWidth = 0; 2092 taskHeight = 0; 2093 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2094 } 2095 2096 /** 2097 * Copies from another ThumbnailInfo. 2098 */ 2099 public void copyFrom(TaskThumbnailInfo o) { 2100 taskWidth = o.taskWidth; 2101 taskHeight = o.taskHeight; 2102 screenOrientation = o.screenOrientation; 2103 } 2104 2105 /** @hide */ 2106 public void saveToXml(XmlSerializer out) throws IOException { 2107 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2108 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2109 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2110 } 2111 2112 /** @hide */ 2113 public void restoreFromXml(String attrName, String attrValue) { 2114 if (ATTR_TASK_WIDTH.equals(attrName)) { 2115 taskWidth = Integer.parseInt(attrValue); 2116 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2117 taskHeight = Integer.parseInt(attrValue); 2118 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2119 screenOrientation = Integer.parseInt(attrValue); 2120 } 2121 } 2122 2123 public int describeContents() { 2124 return 0; 2125 } 2126 2127 public void writeToParcel(Parcel dest, int flags) { 2128 dest.writeInt(taskWidth); 2129 dest.writeInt(taskHeight); 2130 dest.writeInt(screenOrientation); 2131 } 2132 2133 public void readFromParcel(Parcel source) { 2134 taskWidth = source.readInt(); 2135 taskHeight = source.readInt(); 2136 screenOrientation = source.readInt(); 2137 } 2138 2139 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2140 public TaskThumbnailInfo createFromParcel(Parcel source) { 2141 return new TaskThumbnailInfo(source); 2142 } 2143 public TaskThumbnailInfo[] newArray(int size) { 2144 return new TaskThumbnailInfo[size]; 2145 } 2146 }; 2147 } 2148 2149 /** @hide */ 2150 public static class TaskThumbnail implements Parcelable { 2151 public Bitmap mainThumbnail; 2152 public ParcelFileDescriptor thumbnailFileDescriptor; 2153 public TaskThumbnailInfo thumbnailInfo; 2154 2155 public TaskThumbnail() { 2156 } 2157 2158 private TaskThumbnail(Parcel source) { 2159 readFromParcel(source); 2160 } 2161 2162 public int describeContents() { 2163 if (thumbnailFileDescriptor != null) { 2164 return thumbnailFileDescriptor.describeContents(); 2165 } 2166 return 0; 2167 } 2168 2169 public void writeToParcel(Parcel dest, int flags) { 2170 if (mainThumbnail != null) { 2171 dest.writeInt(1); 2172 mainThumbnail.writeToParcel(dest, flags); 2173 } else { 2174 dest.writeInt(0); 2175 } 2176 if (thumbnailFileDescriptor != null) { 2177 dest.writeInt(1); 2178 thumbnailFileDescriptor.writeToParcel(dest, flags); 2179 } else { 2180 dest.writeInt(0); 2181 } 2182 if (thumbnailInfo != null) { 2183 dest.writeInt(1); 2184 thumbnailInfo.writeToParcel(dest, flags); 2185 } else { 2186 dest.writeInt(0); 2187 } 2188 } 2189 2190 public void readFromParcel(Parcel source) { 2191 if (source.readInt() != 0) { 2192 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2193 } else { 2194 mainThumbnail = null; 2195 } 2196 if (source.readInt() != 0) { 2197 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2198 } else { 2199 thumbnailFileDescriptor = null; 2200 } 2201 if (source.readInt() != 0) { 2202 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2203 } else { 2204 thumbnailInfo = null; 2205 } 2206 } 2207 2208 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2209 public TaskThumbnail createFromParcel(Parcel source) { 2210 return new TaskThumbnail(source); 2211 } 2212 public TaskThumbnail[] newArray(int size) { 2213 return new TaskThumbnail[size]; 2214 } 2215 }; 2216 } 2217 2218 /** 2219 * Represents a task snapshot. 2220 * @hide 2221 */ 2222 public static class TaskSnapshot implements Parcelable { 2223 2224 private final GraphicBuffer mSnapshot; 2225 private final int mOrientation; 2226 private final Rect mContentInsets; 2227 private final boolean mReducedResolution; 2228 private final float mScale; 2229 2230 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2231 boolean reducedResolution, float scale) { 2232 mSnapshot = snapshot; 2233 mOrientation = orientation; 2234 mContentInsets = new Rect(contentInsets); 2235 mReducedResolution = reducedResolution; 2236 mScale = scale; 2237 } 2238 2239 private TaskSnapshot(Parcel source) { 2240 mSnapshot = source.readParcelable(null /* classLoader */); 2241 mOrientation = source.readInt(); 2242 mContentInsets = source.readParcelable(null /* classLoader */); 2243 mReducedResolution = source.readBoolean(); 2244 mScale = source.readFloat(); 2245 } 2246 2247 /** 2248 * @return The graphic buffer representing the screenshot. 2249 */ 2250 public GraphicBuffer getSnapshot() { 2251 return mSnapshot; 2252 } 2253 2254 /** 2255 * @return The screen orientation the screenshot was taken in. 2256 */ 2257 public int getOrientation() { 2258 return mOrientation; 2259 } 2260 2261 /** 2262 * @return The system/content insets on the snapshot. These can be clipped off in order to 2263 * remove any areas behind system bars in the snapshot. 2264 */ 2265 public Rect getContentInsets() { 2266 return mContentInsets; 2267 } 2268 2269 /** 2270 * @return Whether this snapshot is a down-sampled version of the full resolution. 2271 */ 2272 public boolean isReducedResolution() { 2273 return mReducedResolution; 2274 } 2275 2276 /** 2277 * @return The scale this snapshot was taken in. 2278 */ 2279 public float getScale() { 2280 return mScale; 2281 } 2282 2283 @Override 2284 public int describeContents() { 2285 return 0; 2286 } 2287 2288 @Override 2289 public void writeToParcel(Parcel dest, int flags) { 2290 dest.writeParcelable(mSnapshot, 0); 2291 dest.writeInt(mOrientation); 2292 dest.writeParcelable(mContentInsets, 0); 2293 dest.writeBoolean(mReducedResolution); 2294 dest.writeFloat(mScale); 2295 } 2296 2297 @Override 2298 public String toString() { 2299 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2300 + " mContentInsets=" + mContentInsets.toShortString() 2301 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2302 } 2303 2304 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2305 public TaskSnapshot createFromParcel(Parcel source) { 2306 return new TaskSnapshot(source); 2307 } 2308 public TaskSnapshot[] newArray(int size) { 2309 return new TaskSnapshot[size]; 2310 } 2311 }; 2312 } 2313 2314 /** @hide */ 2315 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2316 try { 2317 return getService().getTaskThumbnail(id); 2318 } catch (RemoteException e) { 2319 throw e.rethrowFromSystemServer(); 2320 } 2321 } 2322 2323 /** 2324 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2325 * activity along with the task, so it is positioned immediately behind 2326 * the task. 2327 */ 2328 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2329 2330 /** 2331 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2332 * user-instigated action, so the current activity will not receive a 2333 * hint that the user is leaving. 2334 */ 2335 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2336 2337 /** 2338 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2339 * with a null options argument. 2340 * 2341 * @param taskId The identifier of the task to be moved, as found in 2342 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2343 * @param flags Additional operational flags, 0 or more of 2344 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2345 */ 2346 public void moveTaskToFront(int taskId, int flags) { 2347 moveTaskToFront(taskId, flags, null); 2348 } 2349 2350 /** 2351 * Ask that the task associated with a given task ID be moved to the 2352 * front of the stack, so it is now visible to the user. Requires that 2353 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2354 * or a SecurityException will be thrown. 2355 * 2356 * @param taskId The identifier of the task to be moved, as found in 2357 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2358 * @param flags Additional operational flags, 0 or more of 2359 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2360 * @param options Additional options for the operation, either null or 2361 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2362 * Context.startActivity(Intent, Bundle)}. 2363 */ 2364 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2365 try { 2366 getService().moveTaskToFront(taskId, flags, options); 2367 } catch (RemoteException e) { 2368 throw e.rethrowFromSystemServer(); 2369 } 2370 } 2371 2372 /** 2373 * Information you can retrieve about a particular Service that is 2374 * currently running in the system. 2375 */ 2376 public static class RunningServiceInfo implements Parcelable { 2377 /** 2378 * The service component. 2379 */ 2380 public ComponentName service; 2381 2382 /** 2383 * If non-zero, this is the process the service is running in. 2384 */ 2385 public int pid; 2386 2387 /** 2388 * The UID that owns this service. 2389 */ 2390 public int uid; 2391 2392 /** 2393 * The name of the process this service runs in. 2394 */ 2395 public String process; 2396 2397 /** 2398 * Set to true if the service has asked to run as a foreground process. 2399 */ 2400 public boolean foreground; 2401 2402 /** 2403 * The time when the service was first made active, either by someone 2404 * starting or binding to it. This 2405 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2406 */ 2407 public long activeSince; 2408 2409 /** 2410 * Set to true if this service has been explicitly started. 2411 */ 2412 public boolean started; 2413 2414 /** 2415 * Number of clients connected to the service. 2416 */ 2417 public int clientCount; 2418 2419 /** 2420 * Number of times the service's process has crashed while the service 2421 * is running. 2422 */ 2423 public int crashCount; 2424 2425 /** 2426 * The time when there was last activity in the service (either 2427 * explicit requests to start it or clients binding to it). This 2428 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2429 */ 2430 public long lastActivityTime; 2431 2432 /** 2433 * If non-zero, this service is not currently running, but scheduled to 2434 * restart at the given time. 2435 */ 2436 public long restarting; 2437 2438 /** 2439 * Bit for {@link #flags}: set if this service has been 2440 * explicitly started. 2441 */ 2442 public static final int FLAG_STARTED = 1<<0; 2443 2444 /** 2445 * Bit for {@link #flags}: set if the service has asked to 2446 * run as a foreground process. 2447 */ 2448 public static final int FLAG_FOREGROUND = 1<<1; 2449 2450 /** 2451 * Bit for {@link #flags}: set if the service is running in a 2452 * core system process. 2453 */ 2454 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2455 2456 /** 2457 * Bit for {@link #flags}: set if the service is running in a 2458 * persistent process. 2459 */ 2460 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2461 2462 /** 2463 * Running flags. 2464 */ 2465 public int flags; 2466 2467 /** 2468 * For special services that are bound to by system code, this is 2469 * the package that holds the binding. 2470 */ 2471 public String clientPackage; 2472 2473 /** 2474 * For special services that are bound to by system code, this is 2475 * a string resource providing a user-visible label for who the 2476 * client is. 2477 */ 2478 public int clientLabel; 2479 2480 public RunningServiceInfo() { 2481 } 2482 2483 public int describeContents() { 2484 return 0; 2485 } 2486 2487 public void writeToParcel(Parcel dest, int flags) { 2488 ComponentName.writeToParcel(service, dest); 2489 dest.writeInt(pid); 2490 dest.writeInt(uid); 2491 dest.writeString(process); 2492 dest.writeInt(foreground ? 1 : 0); 2493 dest.writeLong(activeSince); 2494 dest.writeInt(started ? 1 : 0); 2495 dest.writeInt(clientCount); 2496 dest.writeInt(crashCount); 2497 dest.writeLong(lastActivityTime); 2498 dest.writeLong(restarting); 2499 dest.writeInt(this.flags); 2500 dest.writeString(clientPackage); 2501 dest.writeInt(clientLabel); 2502 } 2503 2504 public void readFromParcel(Parcel source) { 2505 service = ComponentName.readFromParcel(source); 2506 pid = source.readInt(); 2507 uid = source.readInt(); 2508 process = source.readString(); 2509 foreground = source.readInt() != 0; 2510 activeSince = source.readLong(); 2511 started = source.readInt() != 0; 2512 clientCount = source.readInt(); 2513 crashCount = source.readInt(); 2514 lastActivityTime = source.readLong(); 2515 restarting = source.readLong(); 2516 flags = source.readInt(); 2517 clientPackage = source.readString(); 2518 clientLabel = source.readInt(); 2519 } 2520 2521 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2522 public RunningServiceInfo createFromParcel(Parcel source) { 2523 return new RunningServiceInfo(source); 2524 } 2525 public RunningServiceInfo[] newArray(int size) { 2526 return new RunningServiceInfo[size]; 2527 } 2528 }; 2529 2530 private RunningServiceInfo(Parcel source) { 2531 readFromParcel(source); 2532 } 2533 } 2534 2535 /** 2536 * Return a list of the services that are currently running. 2537 * 2538 * <p><b>Note: this method is only intended for debugging or implementing 2539 * service management type user interfaces.</b></p> 2540 * 2541 * @param maxNum The maximum number of entries to return in the list. The 2542 * actual number returned may be smaller, depending on how many services 2543 * are running. 2544 * 2545 * @return Returns a list of RunningServiceInfo records describing each of 2546 * the running tasks. 2547 */ 2548 public List<RunningServiceInfo> getRunningServices(int maxNum) 2549 throws SecurityException { 2550 try { 2551 return getService() 2552 .getServices(maxNum, 0); 2553 } catch (RemoteException e) { 2554 throw e.rethrowFromSystemServer(); 2555 } 2556 } 2557 2558 /** 2559 * Returns a PendingIntent you can start to show a control panel for the 2560 * given running service. If the service does not have a control panel, 2561 * null is returned. 2562 */ 2563 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2564 throws SecurityException { 2565 try { 2566 return getService() 2567 .getRunningServiceControlPanel(service); 2568 } catch (RemoteException e) { 2569 throw e.rethrowFromSystemServer(); 2570 } 2571 } 2572 2573 /** 2574 * Information you can retrieve about the available memory through 2575 * {@link ActivityManager#getMemoryInfo}. 2576 */ 2577 public static class MemoryInfo implements Parcelable { 2578 /** 2579 * The available memory on the system. This number should not 2580 * be considered absolute: due to the nature of the kernel, a significant 2581 * portion of this memory is actually in use and needed for the overall 2582 * system to run well. 2583 */ 2584 public long availMem; 2585 2586 /** 2587 * The total memory accessible by the kernel. This is basically the 2588 * RAM size of the device, not including below-kernel fixed allocations 2589 * like DMA buffers, RAM for the baseband CPU, etc. 2590 */ 2591 public long totalMem; 2592 2593 /** 2594 * The threshold of {@link #availMem} at which we consider memory to be 2595 * low and start killing background services and other non-extraneous 2596 * processes. 2597 */ 2598 public long threshold; 2599 2600 /** 2601 * Set to true if the system considers itself to currently be in a low 2602 * memory situation. 2603 */ 2604 public boolean lowMemory; 2605 2606 /** @hide */ 2607 public long hiddenAppThreshold; 2608 /** @hide */ 2609 public long secondaryServerThreshold; 2610 /** @hide */ 2611 public long visibleAppThreshold; 2612 /** @hide */ 2613 public long foregroundAppThreshold; 2614 2615 public MemoryInfo() { 2616 } 2617 2618 public int describeContents() { 2619 return 0; 2620 } 2621 2622 public void writeToParcel(Parcel dest, int flags) { 2623 dest.writeLong(availMem); 2624 dest.writeLong(totalMem); 2625 dest.writeLong(threshold); 2626 dest.writeInt(lowMemory ? 1 : 0); 2627 dest.writeLong(hiddenAppThreshold); 2628 dest.writeLong(secondaryServerThreshold); 2629 dest.writeLong(visibleAppThreshold); 2630 dest.writeLong(foregroundAppThreshold); 2631 } 2632 2633 public void readFromParcel(Parcel source) { 2634 availMem = source.readLong(); 2635 totalMem = source.readLong(); 2636 threshold = source.readLong(); 2637 lowMemory = source.readInt() != 0; 2638 hiddenAppThreshold = source.readLong(); 2639 secondaryServerThreshold = source.readLong(); 2640 visibleAppThreshold = source.readLong(); 2641 foregroundAppThreshold = source.readLong(); 2642 } 2643 2644 public static final Creator<MemoryInfo> CREATOR 2645 = new Creator<MemoryInfo>() { 2646 public MemoryInfo createFromParcel(Parcel source) { 2647 return new MemoryInfo(source); 2648 } 2649 public MemoryInfo[] newArray(int size) { 2650 return new MemoryInfo[size]; 2651 } 2652 }; 2653 2654 private MemoryInfo(Parcel source) { 2655 readFromParcel(source); 2656 } 2657 } 2658 2659 /** 2660 * Return general information about the memory state of the system. This 2661 * can be used to help decide how to manage your own memory, though note 2662 * that polling is not recommended and 2663 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2664 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2665 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2666 * level of your process as needed, which gives a better hint for how to 2667 * manage its memory. 2668 */ 2669 public void getMemoryInfo(MemoryInfo outInfo) { 2670 try { 2671 getService().getMemoryInfo(outInfo); 2672 } catch (RemoteException e) { 2673 throw e.rethrowFromSystemServer(); 2674 } 2675 } 2676 2677 /** 2678 * Information you can retrieve about an ActivityStack in the system. 2679 * @hide 2680 */ 2681 public static class StackInfo implements Parcelable { 2682 public int stackId; 2683 public Rect bounds = new Rect(); 2684 public int[] taskIds; 2685 public String[] taskNames; 2686 public Rect[] taskBounds; 2687 public int[] taskUserIds; 2688 public ComponentName topActivity; 2689 public int displayId; 2690 public int userId; 2691 public boolean visible; 2692 // Index of the stack in the display's stack list, can be used for comparison of stack order 2693 public int position; 2694 2695 @Override 2696 public int describeContents() { 2697 return 0; 2698 } 2699 2700 @Override 2701 public void writeToParcel(Parcel dest, int flags) { 2702 dest.writeInt(stackId); 2703 dest.writeInt(bounds.left); 2704 dest.writeInt(bounds.top); 2705 dest.writeInt(bounds.right); 2706 dest.writeInt(bounds.bottom); 2707 dest.writeIntArray(taskIds); 2708 dest.writeStringArray(taskNames); 2709 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2710 dest.writeInt(boundsCount); 2711 for (int i = 0; i < boundsCount; i++) { 2712 dest.writeInt(taskBounds[i].left); 2713 dest.writeInt(taskBounds[i].top); 2714 dest.writeInt(taskBounds[i].right); 2715 dest.writeInt(taskBounds[i].bottom); 2716 } 2717 dest.writeIntArray(taskUserIds); 2718 dest.writeInt(displayId); 2719 dest.writeInt(userId); 2720 dest.writeInt(visible ? 1 : 0); 2721 dest.writeInt(position); 2722 if (topActivity != null) { 2723 dest.writeInt(1); 2724 topActivity.writeToParcel(dest, 0); 2725 } else { 2726 dest.writeInt(0); 2727 } 2728 } 2729 2730 public void readFromParcel(Parcel source) { 2731 stackId = source.readInt(); 2732 bounds = new Rect( 2733 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2734 taskIds = source.createIntArray(); 2735 taskNames = source.createStringArray(); 2736 final int boundsCount = source.readInt(); 2737 if (boundsCount > 0) { 2738 taskBounds = new Rect[boundsCount]; 2739 for (int i = 0; i < boundsCount; i++) { 2740 taskBounds[i] = new Rect(); 2741 taskBounds[i].set( 2742 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2743 } 2744 } else { 2745 taskBounds = null; 2746 } 2747 taskUserIds = source.createIntArray(); 2748 displayId = source.readInt(); 2749 userId = source.readInt(); 2750 visible = source.readInt() > 0; 2751 position = source.readInt(); 2752 if (source.readInt() > 0) { 2753 topActivity = ComponentName.readFromParcel(source); 2754 } 2755 } 2756 2757 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2758 @Override 2759 public StackInfo createFromParcel(Parcel source) { 2760 return new StackInfo(source); 2761 } 2762 @Override 2763 public StackInfo[] newArray(int size) { 2764 return new StackInfo[size]; 2765 } 2766 }; 2767 2768 public StackInfo() { 2769 } 2770 2771 private StackInfo(Parcel source) { 2772 readFromParcel(source); 2773 } 2774 2775 public String toString(String prefix) { 2776 StringBuilder sb = new StringBuilder(256); 2777 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2778 sb.append(" bounds="); sb.append(bounds.toShortString()); 2779 sb.append(" displayId="); sb.append(displayId); 2780 sb.append(" userId="); sb.append(userId); 2781 sb.append("\n"); 2782 prefix = prefix + " "; 2783 for (int i = 0; i < taskIds.length; ++i) { 2784 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2785 sb.append(": "); sb.append(taskNames[i]); 2786 if (taskBounds != null) { 2787 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2788 } 2789 sb.append(" userId=").append(taskUserIds[i]); 2790 sb.append(" visible=").append(visible); 2791 if (topActivity != null) { 2792 sb.append(" topActivity=").append(topActivity); 2793 } 2794 sb.append("\n"); 2795 } 2796 return sb.toString(); 2797 } 2798 2799 @Override 2800 public String toString() { 2801 return toString(""); 2802 } 2803 } 2804 2805 /** 2806 * @hide 2807 */ 2808 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2809 try { 2810 return getService().clearApplicationUserData(packageName, 2811 observer, UserHandle.myUserId()); 2812 } catch (RemoteException e) { 2813 throw e.rethrowFromSystemServer(); 2814 } 2815 } 2816 2817 /** 2818 * Permits an application to erase its own data from disk. This is equivalent to 2819 * the user choosing to clear the app's data from within the device settings UI. It 2820 * erases all dynamic data associated with the app -- its private data and data in its 2821 * private area on external storage -- but does not remove the installed application 2822 * itself, nor any OBB files. 2823 * 2824 * @return {@code true} if the application successfully requested that the application's 2825 * data be erased; {@code false} otherwise. 2826 */ 2827 public boolean clearApplicationUserData() { 2828 return clearApplicationUserData(mContext.getPackageName(), null); 2829 } 2830 2831 2832 /** 2833 * Permits an application to get the persistent URI permissions granted to another. 2834 * 2835 * <p>Typically called by Settings. 2836 * 2837 * @param packageName application to look for the granted permissions 2838 * @return list of granted URI permissions 2839 * 2840 * @hide 2841 */ 2842 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2843 try { 2844 return getService().getGrantedUriPermissions(packageName, 2845 UserHandle.myUserId()); 2846 } catch (RemoteException e) { 2847 throw e.rethrowFromSystemServer(); 2848 } 2849 } 2850 2851 /** 2852 * Permits an application to clear the persistent URI permissions granted to another. 2853 * 2854 * <p>Typically called by Settings. 2855 * 2856 * @param packageName application to clear its granted permissions 2857 * 2858 * @hide 2859 */ 2860 public void clearGrantedUriPermissions(String packageName) { 2861 try { 2862 getService().clearGrantedUriPermissions(packageName, 2863 UserHandle.myUserId()); 2864 } catch (RemoteException e) { 2865 throw e.rethrowFromSystemServer(); 2866 } 2867 } 2868 2869 /** 2870 * Information you can retrieve about any processes that are in an error condition. 2871 */ 2872 public static class ProcessErrorStateInfo implements Parcelable { 2873 /** 2874 * Condition codes 2875 */ 2876 public static final int NO_ERROR = 0; 2877 public static final int CRASHED = 1; 2878 public static final int NOT_RESPONDING = 2; 2879 2880 /** 2881 * The condition that the process is in. 2882 */ 2883 public int condition; 2884 2885 /** 2886 * The process name in which the crash or error occurred. 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 kernel user-ID that has been assigned to this process; 2897 * currently this is not a unique ID (multiple applications can have 2898 * the same uid). 2899 */ 2900 public int uid; 2901 2902 /** 2903 * The activity name associated with the error, if known. May be null. 2904 */ 2905 public String tag; 2906 2907 /** 2908 * A short message describing the error condition. 2909 */ 2910 public String shortMsg; 2911 2912 /** 2913 * A long message describing the error condition. 2914 */ 2915 public String longMsg; 2916 2917 /** 2918 * The stack trace where the error originated. May be null. 2919 */ 2920 public String stackTrace; 2921 2922 /** 2923 * to be deprecated: This value will always be null. 2924 */ 2925 public byte[] crashData = null; 2926 2927 public ProcessErrorStateInfo() { 2928 } 2929 2930 @Override 2931 public int describeContents() { 2932 return 0; 2933 } 2934 2935 @Override 2936 public void writeToParcel(Parcel dest, int flags) { 2937 dest.writeInt(condition); 2938 dest.writeString(processName); 2939 dest.writeInt(pid); 2940 dest.writeInt(uid); 2941 dest.writeString(tag); 2942 dest.writeString(shortMsg); 2943 dest.writeString(longMsg); 2944 dest.writeString(stackTrace); 2945 } 2946 2947 public void readFromParcel(Parcel source) { 2948 condition = source.readInt(); 2949 processName = source.readString(); 2950 pid = source.readInt(); 2951 uid = source.readInt(); 2952 tag = source.readString(); 2953 shortMsg = source.readString(); 2954 longMsg = source.readString(); 2955 stackTrace = source.readString(); 2956 } 2957 2958 public static final Creator<ProcessErrorStateInfo> CREATOR = 2959 new Creator<ProcessErrorStateInfo>() { 2960 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2961 return new ProcessErrorStateInfo(source); 2962 } 2963 public ProcessErrorStateInfo[] newArray(int size) { 2964 return new ProcessErrorStateInfo[size]; 2965 } 2966 }; 2967 2968 private ProcessErrorStateInfo(Parcel source) { 2969 readFromParcel(source); 2970 } 2971 } 2972 2973 /** 2974 * Returns a list of any processes that are currently in an error condition. The result 2975 * will be null if all processes are running properly at this time. 2976 * 2977 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2978 * current error conditions (it will not return an empty list). This list ordering is not 2979 * specified. 2980 */ 2981 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2982 try { 2983 return getService().getProcessesInErrorState(); 2984 } catch (RemoteException e) { 2985 throw e.rethrowFromSystemServer(); 2986 } 2987 } 2988 2989 /** 2990 * Information you can retrieve about a running process. 2991 */ 2992 public static class RunningAppProcessInfo implements Parcelable { 2993 /** 2994 * The name of the process that this object is associated with 2995 */ 2996 public String processName; 2997 2998 /** 2999 * The pid of this process; 0 if none 3000 */ 3001 public int pid; 3002 3003 /** 3004 * The user id of this process. 3005 */ 3006 public int uid; 3007 3008 /** 3009 * All packages that have been loaded into the process. 3010 */ 3011 public String pkgList[]; 3012 3013 /** 3014 * Constant for {@link #flags}: this is an app that is unable to 3015 * correctly save its state when going to the background, 3016 * so it can not be killed while in the background. 3017 * @hide 3018 */ 3019 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3020 3021 /** 3022 * Constant for {@link #flags}: this process is associated with a 3023 * persistent system app. 3024 * @hide 3025 */ 3026 public static final int FLAG_PERSISTENT = 1<<1; 3027 3028 /** 3029 * Constant for {@link #flags}: this process is associated with a 3030 * persistent system app. 3031 * @hide 3032 */ 3033 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3034 3035 /** 3036 * Flags of information. May be any of 3037 * {@link #FLAG_CANT_SAVE_STATE}. 3038 * @hide 3039 */ 3040 public int flags; 3041 3042 /** 3043 * Last memory trim level reported to the process: corresponds to 3044 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3045 * ComponentCallbacks2.onTrimMemory(int)}. 3046 */ 3047 public int lastTrimLevel; 3048 3049 /** 3050 * Constant for {@link #importance}: This process is running the 3051 * foreground UI; that is, it is the thing currently at the top of the screen 3052 * that the user is interacting with. 3053 */ 3054 public static final int IMPORTANCE_FOREGROUND = 100; 3055 3056 /** 3057 * Constant for {@link #importance}: This process is running a foreground 3058 * service, for example to perform music playback even while the user is 3059 * not immediately in the app. This generally indicates that the process 3060 * is doing something the user actively cares about. 3061 */ 3062 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3063 3064 /** 3065 * Constant for {@link #importance}: This process is running the foreground 3066 * UI, but the device is asleep so it is not visible to the user. This means 3067 * the user is not really aware of the process, because they can not see or 3068 * interact with it, but it is quite important because it what they expect to 3069 * return to once unlocking the device. 3070 */ 3071 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3072 3073 /** 3074 * Constant for {@link #importance}: This process is running something 3075 * that is actively visible to the user, though not in the immediate 3076 * foreground. This may be running a window that is behind the current 3077 * foreground (so paused and with its state saved, not interacting with 3078 * the user, but visible to them to some degree); it may also be running 3079 * other services under the system's control that it inconsiders important. 3080 */ 3081 public static final int IMPORTANCE_VISIBLE = 200; 3082 3083 /** 3084 * Constant for {@link #importance}: This process is not something the user 3085 * is directly aware of, but is otherwise perceptable to them to some degree. 3086 */ 3087 public static final int IMPORTANCE_PERCEPTIBLE = 130; 3088 3089 /** 3090 * Constant for {@link #importance}: This process is running an 3091 * application that can not save its state, and thus can't be killed 3092 * while in the background. 3093 * @hide 3094 */ 3095 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 3096 3097 /** 3098 * Constant for {@link #importance}: This process is contains services 3099 * that should remain running. These are background services apps have 3100 * started, not something the user is aware of, so they may be killed by 3101 * the system relatively freely (though it is generally desired that they 3102 * stay running as long as they want to). 3103 */ 3104 public static final int IMPORTANCE_SERVICE = 300; 3105 3106 /** 3107 * Constant for {@link #importance}: This process process contains 3108 * cached code that is expendable, not actively running any app components 3109 * we care about. 3110 */ 3111 public static final int IMPORTANCE_CACHED = 400; 3112 3113 /** 3114 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3115 */ 3116 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3117 3118 /** 3119 * Constant for {@link #importance}: This process is empty of any 3120 * actively running code. 3121 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3122 */ 3123 @Deprecated 3124 public static final int IMPORTANCE_EMPTY = 500; 3125 3126 /** 3127 * Constant for {@link #importance}: This process does not exist. 3128 */ 3129 public static final int IMPORTANCE_GONE = 1000; 3130 3131 /** @hide */ 3132 public static int procStateToImportance(int procState) { 3133 if (procState == PROCESS_STATE_NONEXISTENT) { 3134 return IMPORTANCE_GONE; 3135 } else if (procState >= PROCESS_STATE_HOME) { 3136 return IMPORTANCE_CACHED; 3137 } else if (procState >= PROCESS_STATE_SERVICE) { 3138 return IMPORTANCE_SERVICE; 3139 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3140 return IMPORTANCE_CANT_SAVE_STATE; 3141 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3142 return IMPORTANCE_PERCEPTIBLE; 3143 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3144 return IMPORTANCE_VISIBLE; 3145 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3146 return IMPORTANCE_TOP_SLEEPING; 3147 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3148 return IMPORTANCE_FOREGROUND_SERVICE; 3149 } else { 3150 return IMPORTANCE_FOREGROUND; 3151 } 3152 } 3153 3154 /** @hide */ 3155 public static int importanceToProcState(int importance) { 3156 if (importance == IMPORTANCE_GONE) { 3157 return PROCESS_STATE_NONEXISTENT; 3158 } else if (importance >= IMPORTANCE_CACHED) { 3159 return PROCESS_STATE_HOME; 3160 } else if (importance >= IMPORTANCE_SERVICE) { 3161 return PROCESS_STATE_SERVICE; 3162 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3163 return PROCESS_STATE_HEAVY_WEIGHT; 3164 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3165 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3166 } else if (importance >= IMPORTANCE_VISIBLE) { 3167 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3168 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3169 return PROCESS_STATE_TOP_SLEEPING; 3170 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3171 return PROCESS_STATE_FOREGROUND_SERVICE; 3172 } else { 3173 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3174 } 3175 } 3176 3177 /** 3178 * The relative importance level that the system places on this 3179 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3180 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, or 3181 * {@link #IMPORTANCE_CACHED}. These 3182 * constants are numbered so that "more important" values are always 3183 * smaller than "less important" values. 3184 */ 3185 public int importance; 3186 3187 /** 3188 * An additional ordering within a particular {@link #importance} 3189 * category, providing finer-grained information about the relative 3190 * utility of processes within a category. This number means nothing 3191 * except that a smaller values are more recently used (and thus 3192 * more important). Currently an LRU value is only maintained for 3193 * the {@link #IMPORTANCE_CACHED} category, though others may 3194 * be maintained in the future. 3195 */ 3196 public int lru; 3197 3198 /** 3199 * Constant for {@link #importanceReasonCode}: nothing special has 3200 * been specified for the reason for this level. 3201 */ 3202 public static final int REASON_UNKNOWN = 0; 3203 3204 /** 3205 * Constant for {@link #importanceReasonCode}: one of the application's 3206 * content providers is being used by another process. The pid of 3207 * the client process is in {@link #importanceReasonPid} and the 3208 * target provider in this process is in 3209 * {@link #importanceReasonComponent}. 3210 */ 3211 public static final int REASON_PROVIDER_IN_USE = 1; 3212 3213 /** 3214 * Constant for {@link #importanceReasonCode}: one of the application's 3215 * content providers is being used by another process. The pid of 3216 * the client process is in {@link #importanceReasonPid} and the 3217 * target provider in this process is in 3218 * {@link #importanceReasonComponent}. 3219 */ 3220 public static final int REASON_SERVICE_IN_USE = 2; 3221 3222 /** 3223 * The reason for {@link #importance}, if any. 3224 */ 3225 public int importanceReasonCode; 3226 3227 /** 3228 * For the specified values of {@link #importanceReasonCode}, this 3229 * is the process ID of the other process that is a client of this 3230 * process. This will be 0 if no other process is using this one. 3231 */ 3232 public int importanceReasonPid; 3233 3234 /** 3235 * For the specified values of {@link #importanceReasonCode}, this 3236 * is the name of the component that is being used in this process. 3237 */ 3238 public ComponentName importanceReasonComponent; 3239 3240 /** 3241 * When {@link #importanceReasonPid} is non-0, this is the importance 3242 * of the other pid. @hide 3243 */ 3244 public int importanceReasonImportance; 3245 3246 /** 3247 * Current process state, as per PROCESS_STATE_* constants. 3248 * @hide 3249 */ 3250 public int processState; 3251 3252 public RunningAppProcessInfo() { 3253 importance = IMPORTANCE_FOREGROUND; 3254 importanceReasonCode = REASON_UNKNOWN; 3255 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3256 } 3257 3258 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3259 processName = pProcessName; 3260 pid = pPid; 3261 pkgList = pArr; 3262 } 3263 3264 public int describeContents() { 3265 return 0; 3266 } 3267 3268 public void writeToParcel(Parcel dest, int flags) { 3269 dest.writeString(processName); 3270 dest.writeInt(pid); 3271 dest.writeInt(uid); 3272 dest.writeStringArray(pkgList); 3273 dest.writeInt(this.flags); 3274 dest.writeInt(lastTrimLevel); 3275 dest.writeInt(importance); 3276 dest.writeInt(lru); 3277 dest.writeInt(importanceReasonCode); 3278 dest.writeInt(importanceReasonPid); 3279 ComponentName.writeToParcel(importanceReasonComponent, dest); 3280 dest.writeInt(importanceReasonImportance); 3281 dest.writeInt(processState); 3282 } 3283 3284 public void readFromParcel(Parcel source) { 3285 processName = source.readString(); 3286 pid = source.readInt(); 3287 uid = source.readInt(); 3288 pkgList = source.readStringArray(); 3289 flags = source.readInt(); 3290 lastTrimLevel = source.readInt(); 3291 importance = source.readInt(); 3292 lru = source.readInt(); 3293 importanceReasonCode = source.readInt(); 3294 importanceReasonPid = source.readInt(); 3295 importanceReasonComponent = ComponentName.readFromParcel(source); 3296 importanceReasonImportance = source.readInt(); 3297 processState = source.readInt(); 3298 } 3299 3300 public static final Creator<RunningAppProcessInfo> CREATOR = 3301 new Creator<RunningAppProcessInfo>() { 3302 public RunningAppProcessInfo createFromParcel(Parcel source) { 3303 return new RunningAppProcessInfo(source); 3304 } 3305 public RunningAppProcessInfo[] newArray(int size) { 3306 return new RunningAppProcessInfo[size]; 3307 } 3308 }; 3309 3310 private RunningAppProcessInfo(Parcel source) { 3311 readFromParcel(source); 3312 } 3313 } 3314 3315 /** 3316 * Returns a list of application processes installed on external media 3317 * that are running on the device. 3318 * 3319 * <p><b>Note: this method is only intended for debugging or building 3320 * a user-facing process management UI.</b></p> 3321 * 3322 * @return Returns a list of ApplicationInfo records, or null if none 3323 * This list ordering is not specified. 3324 * @hide 3325 */ 3326 public List<ApplicationInfo> getRunningExternalApplications() { 3327 try { 3328 return getService().getRunningExternalApplications(); 3329 } catch (RemoteException e) { 3330 throw e.rethrowFromSystemServer(); 3331 } 3332 } 3333 3334 /** 3335 * Sets the memory trim mode for a process and schedules a memory trim operation. 3336 * 3337 * <p><b>Note: this method is only intended for testing framework.</b></p> 3338 * 3339 * @return Returns true if successful. 3340 * @hide 3341 */ 3342 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3343 try { 3344 return getService().setProcessMemoryTrimLevel(process, userId, 3345 level); 3346 } catch (RemoteException e) { 3347 throw e.rethrowFromSystemServer(); 3348 } 3349 } 3350 3351 /** 3352 * Returns a list of application processes that are running on the device. 3353 * 3354 * <p><b>Note: this method is only intended for debugging or building 3355 * a user-facing process management UI.</b></p> 3356 * 3357 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3358 * running processes (it will not return an empty list). This list ordering is not 3359 * specified. 3360 */ 3361 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3362 try { 3363 return getService().getRunningAppProcesses(); 3364 } catch (RemoteException e) { 3365 throw e.rethrowFromSystemServer(); 3366 } 3367 } 3368 3369 /** 3370 * Return the importance of a given package name, based on the processes that are 3371 * currently running. The return value is one of the importance constants defined 3372 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3373 * processes that this package has code running inside of. If there are no processes 3374 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3375 * @hide 3376 */ 3377 @SystemApi @TestApi 3378 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3379 public int getPackageImportance(String packageName) { 3380 try { 3381 int procState = getService().getPackageProcessState(packageName, 3382 mContext.getOpPackageName()); 3383 return RunningAppProcessInfo.procStateToImportance(procState); 3384 } catch (RemoteException e) { 3385 throw e.rethrowFromSystemServer(); 3386 } 3387 } 3388 3389 /** 3390 * Callback to get reports about changes to the importance of a uid. Use with 3391 * {@link #addOnUidImportanceListener}. 3392 * @hide 3393 */ 3394 @SystemApi @TestApi 3395 public interface OnUidImportanceListener { 3396 /** 3397 * The importance if a given uid has changed. Will be one of the importance 3398 * values in {@link RunningAppProcessInfo}; 3399 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3400 * when the uid is no longer running at all. This callback will happen on a thread 3401 * from a thread pool, not the main UI thread. 3402 * @param uid The uid whose importance has changed. 3403 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3404 */ 3405 void onUidImportance(int uid, int importance); 3406 } 3407 3408 /** 3409 * Start monitoring changes to the imoportance of uids running in the system. 3410 * @param listener The listener callback that will receive change reports. 3411 * @param importanceCutpoint The level of importance in which the caller is interested 3412 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3413 * is used here, you will receive a call each time a uids importance transitions between 3414 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3415 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3416 * 3417 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3418 * permission to use this feature.</p> 3419 * 3420 * @throws IllegalArgumentException If the listener is already registered. 3421 * @throws SecurityException If the caller does not hold 3422 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3423 * @hide 3424 */ 3425 @SystemApi @TestApi 3426 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3427 int importanceCutpoint) { 3428 synchronized (this) { 3429 if (mImportanceListeners.containsKey(listener)) { 3430 throw new IllegalArgumentException("Listener already registered: " + listener); 3431 } 3432 // TODO: implement the cut point in the system process to avoid IPCs. 3433 UidObserver observer = new UidObserver(listener); 3434 try { 3435 getService().registerUidObserver(observer, 3436 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3437 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3438 mContext.getOpPackageName()); 3439 } catch (RemoteException e) { 3440 throw e.rethrowFromSystemServer(); 3441 } 3442 mImportanceListeners.put(listener, observer); 3443 } 3444 } 3445 3446 /** 3447 * Remove an importance listener that was previously registered with 3448 * {@link #addOnUidImportanceListener}. 3449 * 3450 * @throws IllegalArgumentException If the listener is not registered. 3451 * @hide 3452 */ 3453 @SystemApi @TestApi 3454 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3455 synchronized (this) { 3456 UidObserver observer = mImportanceListeners.remove(listener); 3457 if (observer == null) { 3458 throw new IllegalArgumentException("Listener not registered: " + listener); 3459 } 3460 try { 3461 getService().unregisterUidObserver(observer); 3462 } catch (RemoteException e) { 3463 throw e.rethrowFromSystemServer(); 3464 } 3465 } 3466 } 3467 3468 /** 3469 * Return global memory state information for the calling process. This 3470 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3471 * only fields that will be filled in are 3472 * {@link RunningAppProcessInfo#pid}, 3473 * {@link RunningAppProcessInfo#uid}, 3474 * {@link RunningAppProcessInfo#lastTrimLevel}, 3475 * {@link RunningAppProcessInfo#importance}, 3476 * {@link RunningAppProcessInfo#lru}, and 3477 * {@link RunningAppProcessInfo#importanceReasonCode}. 3478 */ 3479 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3480 try { 3481 getService().getMyMemoryState(outState); 3482 } catch (RemoteException e) { 3483 throw e.rethrowFromSystemServer(); 3484 } 3485 } 3486 3487 /** 3488 * Return information about the memory usage of one or more processes. 3489 * 3490 * <p><b>Note: this method is only intended for debugging or building 3491 * a user-facing process management UI.</b></p> 3492 * 3493 * @param pids The pids of the processes whose memory usage is to be 3494 * retrieved. 3495 * @return Returns an array of memory information, one for each 3496 * requested pid. 3497 */ 3498 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3499 try { 3500 return getService().getProcessMemoryInfo(pids); 3501 } catch (RemoteException e) { 3502 throw e.rethrowFromSystemServer(); 3503 } 3504 } 3505 3506 /** 3507 * @deprecated This is now just a wrapper for 3508 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3509 * is no longer available to applications because it allows them to 3510 * break other applications by removing their alarms, stopping their 3511 * services, etc. 3512 */ 3513 @Deprecated 3514 public void restartPackage(String packageName) { 3515 killBackgroundProcesses(packageName); 3516 } 3517 3518 /** 3519 * Have the system immediately kill all background processes associated 3520 * with the given package. This is the same as the kernel killing those 3521 * processes to reclaim memory; the system will take care of restarting 3522 * these processes in the future as needed. 3523 * 3524 * <p>You must hold the permission 3525 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3526 * call this method. 3527 * 3528 * @param packageName The name of the package whose processes are to 3529 * be killed. 3530 */ 3531 public void killBackgroundProcesses(String packageName) { 3532 try { 3533 getService().killBackgroundProcesses(packageName, 3534 UserHandle.myUserId()); 3535 } catch (RemoteException e) { 3536 throw e.rethrowFromSystemServer(); 3537 } 3538 } 3539 3540 /** 3541 * Kills the specified UID. 3542 * @param uid The UID to kill. 3543 * @param reason The reason for the kill. 3544 * 3545 * @hide 3546 */ 3547 @SystemApi 3548 @RequiresPermission(Manifest.permission.KILL_UID) 3549 public void killUid(int uid, String reason) { 3550 try { 3551 getService().killUid(UserHandle.getAppId(uid), 3552 UserHandle.getUserId(uid), reason); 3553 } catch (RemoteException e) { 3554 throw e.rethrowFromSystemServer(); 3555 } 3556 } 3557 3558 /** 3559 * Have the system perform a force stop of everything associated with 3560 * the given application package. All processes that share its uid 3561 * will be killed, all services it has running stopped, all activities 3562 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3563 * broadcast will be sent, so that any of its registered alarms can 3564 * be stopped, notifications removed, etc. 3565 * 3566 * <p>You must hold the permission 3567 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3568 * call this method. 3569 * 3570 * @param packageName The name of the package to be stopped. 3571 * @param userId The user for which the running package is to be stopped. 3572 * 3573 * @hide This is not available to third party applications due to 3574 * it allowing them to break other applications by stopping their 3575 * services, removing their alarms, etc. 3576 */ 3577 public void forceStopPackageAsUser(String packageName, int userId) { 3578 try { 3579 getService().forceStopPackage(packageName, userId); 3580 } catch (RemoteException e) { 3581 throw e.rethrowFromSystemServer(); 3582 } 3583 } 3584 3585 /** 3586 * @see #forceStopPackageAsUser(String, int) 3587 * @hide 3588 */ 3589 @SystemApi 3590 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3591 public void forceStopPackage(String packageName) { 3592 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3593 } 3594 3595 /** 3596 * Get the device configuration attributes. 3597 */ 3598 public ConfigurationInfo getDeviceConfigurationInfo() { 3599 try { 3600 return getService().getDeviceConfigurationInfo(); 3601 } catch (RemoteException e) { 3602 throw e.rethrowFromSystemServer(); 3603 } 3604 } 3605 3606 /** 3607 * Get the preferred density of icons for the launcher. This is used when 3608 * custom drawables are created (e.g., for shortcuts). 3609 * 3610 * @return density in terms of DPI 3611 */ 3612 public int getLauncherLargeIconDensity() { 3613 final Resources res = mContext.getResources(); 3614 final int density = res.getDisplayMetrics().densityDpi; 3615 final int sw = res.getConfiguration().smallestScreenWidthDp; 3616 3617 if (sw < 600) { 3618 // Smaller than approx 7" tablets, use the regular icon size. 3619 return density; 3620 } 3621 3622 switch (density) { 3623 case DisplayMetrics.DENSITY_LOW: 3624 return DisplayMetrics.DENSITY_MEDIUM; 3625 case DisplayMetrics.DENSITY_MEDIUM: 3626 return DisplayMetrics.DENSITY_HIGH; 3627 case DisplayMetrics.DENSITY_TV: 3628 return DisplayMetrics.DENSITY_XHIGH; 3629 case DisplayMetrics.DENSITY_HIGH: 3630 return DisplayMetrics.DENSITY_XHIGH; 3631 case DisplayMetrics.DENSITY_XHIGH: 3632 return DisplayMetrics.DENSITY_XXHIGH; 3633 case DisplayMetrics.DENSITY_XXHIGH: 3634 return DisplayMetrics.DENSITY_XHIGH * 2; 3635 default: 3636 // The density is some abnormal value. Return some other 3637 // abnormal value that is a reasonable scaling of it. 3638 return (int)((density*1.5f)+.5f); 3639 } 3640 } 3641 3642 /** 3643 * Get the preferred launcher icon size. This is used when custom drawables 3644 * are created (e.g., for shortcuts). 3645 * 3646 * @return dimensions of square icons in terms of pixels 3647 */ 3648 public int getLauncherLargeIconSize() { 3649 return getLauncherLargeIconSizeInner(mContext); 3650 } 3651 3652 static int getLauncherLargeIconSizeInner(Context context) { 3653 final Resources res = context.getResources(); 3654 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3655 final int sw = res.getConfiguration().smallestScreenWidthDp; 3656 3657 if (sw < 600) { 3658 // Smaller than approx 7" tablets, use the regular icon size. 3659 return size; 3660 } 3661 3662 final int density = res.getDisplayMetrics().densityDpi; 3663 3664 switch (density) { 3665 case DisplayMetrics.DENSITY_LOW: 3666 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3667 case DisplayMetrics.DENSITY_MEDIUM: 3668 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3669 case DisplayMetrics.DENSITY_TV: 3670 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3671 case DisplayMetrics.DENSITY_HIGH: 3672 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3673 case DisplayMetrics.DENSITY_XHIGH: 3674 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3675 case DisplayMetrics.DENSITY_XXHIGH: 3676 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3677 default: 3678 // The density is some abnormal value. Return some other 3679 // abnormal value that is a reasonable scaling of it. 3680 return (int)((size*1.5f) + .5f); 3681 } 3682 } 3683 3684 /** 3685 * Returns "true" if the user interface is currently being messed with 3686 * by a monkey. 3687 */ 3688 public static boolean isUserAMonkey() { 3689 try { 3690 return getService().isUserAMonkey(); 3691 } catch (RemoteException e) { 3692 throw e.rethrowFromSystemServer(); 3693 } 3694 } 3695 3696 /** 3697 * Returns "true" if device is running in a test harness. 3698 */ 3699 public static boolean isRunningInTestHarness() { 3700 return SystemProperties.getBoolean("ro.test_harness", false); 3701 } 3702 3703 /** 3704 * Returns the launch count of each installed package. 3705 * 3706 * @hide 3707 */ 3708 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3709 try { 3710 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3711 ServiceManager.getService("usagestats")); 3712 if (usageStatsService == null) { 3713 return new HashMap<String, Integer>(); 3714 } 3715 3716 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3717 ActivityThread.currentPackageName()); 3718 if (allPkgUsageStats == null) { 3719 return new HashMap<String, Integer>(); 3720 } 3721 3722 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3723 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3724 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3725 } 3726 3727 return launchCounts; 3728 } catch (RemoteException e) { 3729 Log.w(TAG, "Could not query launch counts", e); 3730 return new HashMap<String, Integer>(); 3731 } 3732 }*/ 3733 3734 /** @hide */ 3735 public static int checkComponentPermission(String permission, int uid, 3736 int owningUid, boolean exported) { 3737 // Root, system server get to do everything. 3738 final int appId = UserHandle.getAppId(uid); 3739 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3740 return PackageManager.PERMISSION_GRANTED; 3741 } 3742 // Isolated processes don't get any permissions. 3743 if (UserHandle.isIsolated(uid)) { 3744 return PackageManager.PERMISSION_DENIED; 3745 } 3746 // If there is a uid that owns whatever is being accessed, it has 3747 // blanket access to it regardless of the permissions it requires. 3748 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3749 return PackageManager.PERMISSION_GRANTED; 3750 } 3751 // If the target is not exported, then nobody else can get to it. 3752 if (!exported) { 3753 /* 3754 RuntimeException here = new RuntimeException("here"); 3755 here.fillInStackTrace(); 3756 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3757 here); 3758 */ 3759 return PackageManager.PERMISSION_DENIED; 3760 } 3761 if (permission == null) { 3762 return PackageManager.PERMISSION_GRANTED; 3763 } 3764 try { 3765 return AppGlobals.getPackageManager() 3766 .checkUidPermission(permission, uid); 3767 } catch (RemoteException e) { 3768 throw e.rethrowFromSystemServer(); 3769 } 3770 } 3771 3772 /** @hide */ 3773 public static int checkUidPermission(String permission, int uid) { 3774 try { 3775 return AppGlobals.getPackageManager() 3776 .checkUidPermission(permission, uid); 3777 } catch (RemoteException e) { 3778 throw e.rethrowFromSystemServer(); 3779 } 3780 } 3781 3782 /** 3783 * @hide 3784 * Helper for dealing with incoming user arguments to system service calls. 3785 * Takes care of checking permissions and converting USER_CURRENT to the 3786 * actual current user. 3787 * 3788 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3789 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3790 * @param userId The user id argument supplied by the caller -- this is the user 3791 * they want to run as. 3792 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3793 * to get a USER_ALL returned and deal with it correctly. If false, 3794 * an exception will be thrown if USER_ALL is supplied. 3795 * @param requireFull If true, the caller must hold 3796 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3797 * different user than their current process; otherwise they must hold 3798 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3799 * @param name Optional textual name of the incoming call; only for generating error messages. 3800 * @param callerPackage Optional package name of caller; only for error messages. 3801 * 3802 * @return Returns the user ID that the call should run as. Will always be a concrete 3803 * user number, unless <var>allowAll</var> is true in which case it could also be 3804 * USER_ALL. 3805 */ 3806 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3807 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3808 if (UserHandle.getUserId(callingUid) == userId) { 3809 return userId; 3810 } 3811 try { 3812 return getService().handleIncomingUser(callingPid, 3813 callingUid, userId, allowAll, requireFull, name, callerPackage); 3814 } catch (RemoteException e) { 3815 throw e.rethrowFromSystemServer(); 3816 } 3817 } 3818 3819 /** 3820 * Gets the userId of the current foreground user. Requires system permissions. 3821 * @hide 3822 */ 3823 @SystemApi 3824 public static int getCurrentUser() { 3825 UserInfo ui; 3826 try { 3827 ui = getService().getCurrentUser(); 3828 return ui != null ? ui.id : 0; 3829 } catch (RemoteException e) { 3830 throw e.rethrowFromSystemServer(); 3831 } 3832 } 3833 3834 /** 3835 * @param userid the user's id. Zero indicates the default user. 3836 * @hide 3837 */ 3838 public boolean switchUser(int userid) { 3839 try { 3840 return getService().switchUser(userid); 3841 } catch (RemoteException e) { 3842 throw e.rethrowFromSystemServer(); 3843 } 3844 } 3845 3846 /** 3847 * Logs out current current foreground user by switching to the system user and stopping the 3848 * user being switched from. 3849 * @hide 3850 */ 3851 public static void logoutCurrentUser() { 3852 int currentUser = ActivityManager.getCurrentUser(); 3853 if (currentUser != UserHandle.USER_SYSTEM) { 3854 try { 3855 getService().switchUser(UserHandle.USER_SYSTEM); 3856 getService().stopUser(currentUser, /* force= */ false, null); 3857 } catch (RemoteException e) { 3858 e.rethrowFromSystemServer(); 3859 } 3860 } 3861 } 3862 3863 /** {@hide} */ 3864 public static final int FLAG_OR_STOPPED = 1 << 0; 3865 /** {@hide} */ 3866 public static final int FLAG_AND_LOCKED = 1 << 1; 3867 /** {@hide} */ 3868 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3869 /** {@hide} */ 3870 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3871 3872 /** 3873 * Return whether the given user is actively running. This means that 3874 * the user is in the "started" state, not "stopped" -- it is currently 3875 * allowed to run code through scheduled alarms, receiving broadcasts, 3876 * etc. A started user may be either the current foreground user or a 3877 * background user; the result here does not distinguish between the two. 3878 * @param userId the user's id. Zero indicates the default user. 3879 * @hide 3880 */ 3881 public boolean isUserRunning(int userId) { 3882 try { 3883 return getService().isUserRunning(userId, 0); 3884 } catch (RemoteException e) { 3885 throw e.rethrowFromSystemServer(); 3886 } 3887 } 3888 3889 /** {@hide} */ 3890 public boolean isVrModePackageEnabled(ComponentName component) { 3891 try { 3892 return getService().isVrModePackageEnabled(component); 3893 } catch (RemoteException e) { 3894 throw e.rethrowFromSystemServer(); 3895 } 3896 } 3897 3898 /** 3899 * Perform a system dump of various state associated with the given application 3900 * package name. This call blocks while the dump is being performed, so should 3901 * not be done on a UI thread. The data will be written to the given file 3902 * descriptor as text. An application must hold the 3903 * {@link android.Manifest.permission#DUMP} permission to make this call. 3904 * @param fd The file descriptor that the dump should be written to. The file 3905 * descriptor is <em>not</em> closed by this function; the caller continues to 3906 * own it. 3907 * @param packageName The name of the package that is to be dumped. 3908 */ 3909 public void dumpPackageState(FileDescriptor fd, String packageName) { 3910 dumpPackageStateStatic(fd, packageName); 3911 } 3912 3913 /** 3914 * @hide 3915 */ 3916 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3917 FileOutputStream fout = new FileOutputStream(fd); 3918 PrintWriter pw = new FastPrintWriter(fout); 3919 dumpService(pw, fd, "package", new String[] { packageName }); 3920 pw.println(); 3921 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3922 "-a", "package", packageName }); 3923 pw.println(); 3924 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3925 pw.println(); 3926 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3927 pw.println(); 3928 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3929 pw.println(); 3930 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3931 pw.flush(); 3932 } 3933 3934 /** 3935 * @hide 3936 */ 3937 public static boolean isSystemReady() { 3938 if (!sSystemReady) { 3939 if (ActivityThread.isSystem()) { 3940 sSystemReady = 3941 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3942 } else { 3943 // Since this is being called from outside system server, system should be 3944 // ready by now. 3945 sSystemReady = true; 3946 } 3947 } 3948 return sSystemReady; 3949 } 3950 3951 /** 3952 * @hide 3953 */ 3954 public static void broadcastStickyIntent(Intent intent, int userId) { 3955 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3956 } 3957 3958 /** 3959 * Convenience for sending a sticky broadcast. For internal use only. 3960 * 3961 * @hide 3962 */ 3963 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3964 try { 3965 getService().broadcastIntent( 3966 null, intent, null, null, Activity.RESULT_OK, null, null, 3967 null /*permission*/, appOp, null, false, true, userId); 3968 } catch (RemoteException ex) { 3969 } 3970 } 3971 3972 /** 3973 * @hide 3974 */ 3975 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3976 String tag) { 3977 try { 3978 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3979 sourceUid, sourcePkg, tag); 3980 } catch (RemoteException ex) { 3981 } 3982 } 3983 3984 /** 3985 * @hide 3986 */ 3987 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3988 try { 3989 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3990 } catch (RemoteException ex) { 3991 } 3992 } 3993 3994 /** 3995 * @hide 3996 */ 3997 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3998 try { 3999 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4000 } catch (RemoteException ex) { 4001 } 4002 } 4003 4004 /** 4005 * @hide 4006 */ 4007 public static IActivityManager getService() { 4008 return IActivityManagerSingleton.get(); 4009 } 4010 4011 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4012 new Singleton<IActivityManager>() { 4013 @Override 4014 protected IActivityManager create() { 4015 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4016 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4017 return am; 4018 } 4019 }; 4020 4021 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4022 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4023 IBinder service = ServiceManager.checkService(name); 4024 if (service == null) { 4025 pw.println(" (Service not found)"); 4026 return; 4027 } 4028 TransferPipe tp = null; 4029 try { 4030 pw.flush(); 4031 tp = new TransferPipe(); 4032 tp.setBufferPrefix(" "); 4033 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4034 tp.go(fd, 10000); 4035 } catch (Throwable e) { 4036 if (tp != null) { 4037 tp.kill(); 4038 } 4039 pw.println("Failure dumping service:"); 4040 e.printStackTrace(pw); 4041 } 4042 } 4043 4044 /** 4045 * Request that the system start watching for the calling process to exceed a pss 4046 * size as given here. Once called, the system will look for any occasions where it 4047 * sees the associated process with a larger pss size and, when this happens, automatically 4048 * pull a heap dump from it and allow the user to share the data. Note that this request 4049 * continues running even if the process is killed and restarted. To remove the watch, 4050 * use {@link #clearWatchHeapLimit()}. 4051 * 4052 * <p>This API only work if the calling process has been marked as 4053 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4054 * (userdebug or eng) build.</p> 4055 * 4056 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4057 * handle heap limit reports themselves.</p> 4058 * 4059 * @param pssSize The size in bytes to set the limit at. 4060 */ 4061 public void setWatchHeapLimit(long pssSize) { 4062 try { 4063 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4064 mContext.getPackageName()); 4065 } catch (RemoteException e) { 4066 throw e.rethrowFromSystemServer(); 4067 } 4068 } 4069 4070 /** 4071 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4072 * If your package has an activity handling this action, it will be launched with the 4073 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4074 * match the activty must support this action and a MIME type of "*/*". 4075 */ 4076 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4077 4078 /** 4079 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4080 */ 4081 public void clearWatchHeapLimit() { 4082 try { 4083 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4084 } catch (RemoteException e) { 4085 throw e.rethrowFromSystemServer(); 4086 } 4087 } 4088 4089 /** 4090 * @hide 4091 */ 4092 public void startLockTaskMode(int taskId) { 4093 try { 4094 getService().startLockTaskModeById(taskId); 4095 } catch (RemoteException e) { 4096 throw e.rethrowFromSystemServer(); 4097 } 4098 } 4099 4100 /** 4101 * @hide 4102 */ 4103 public void stopLockTaskMode() { 4104 try { 4105 getService().stopLockTaskMode(); 4106 } catch (RemoteException e) { 4107 throw e.rethrowFromSystemServer(); 4108 } 4109 } 4110 4111 /** 4112 * Return whether currently in lock task mode. When in this mode 4113 * no new tasks can be created or switched to. 4114 * 4115 * @see Activity#startLockTask() 4116 * 4117 * @deprecated Use {@link #getLockTaskModeState} instead. 4118 */ 4119 @Deprecated 4120 public boolean isInLockTaskMode() { 4121 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4122 } 4123 4124 /** 4125 * Return the current state of task locking. The three possible outcomes 4126 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4127 * and {@link #LOCK_TASK_MODE_PINNED}. 4128 * 4129 * @see Activity#startLockTask() 4130 */ 4131 public int getLockTaskModeState() { 4132 try { 4133 return getService().getLockTaskModeState(); 4134 } catch (RemoteException e) { 4135 throw e.rethrowFromSystemServer(); 4136 } 4137 } 4138 4139 /** 4140 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4141 * thread can be a VR thread in a process at a time, and that thread may be subject to 4142 * restrictions on the amount of time it can run. 4143 * 4144 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4145 * method will return to normal operation, and calling this method will do nothing while 4146 * persistent VR mode is enabled. 4147 * 4148 * To reset the VR thread for an application, a tid of 0 can be passed. 4149 * 4150 * @see android.os.Process#myTid() 4151 * @param tid tid of the VR thread 4152 */ 4153 public static void setVrThread(int tid) { 4154 try { 4155 getService().setVrThread(tid); 4156 } catch (RemoteException e) { 4157 // pass 4158 } 4159 } 4160 4161 /** 4162 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4163 * beyond a single process. It requires holding the 4164 * {@link android.Manifest.permission#RESTRICTED_VR_ACCESS} permission. Only one thread can be a 4165 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4166 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4167 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4168 * persistent VR thread loses its new scheduling priority; this method must be called again to 4169 * set the persistent thread. 4170 * 4171 * To reset the persistent VR thread, a tid of 0 can be passed. 4172 * 4173 * @see android.os.Process#myTid() 4174 * @param tid tid of the VR thread 4175 * @hide 4176 */ 4177 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4178 public static void setPersistentVrThread(int tid) { 4179 try { 4180 getService().setPersistentVrThread(tid); 4181 } catch (RemoteException e) { 4182 // pass 4183 } 4184 } 4185 4186 /** 4187 * The AppTask allows you to manage your own application's tasks. 4188 * See {@link android.app.ActivityManager#getAppTasks()} 4189 */ 4190 public static class AppTask { 4191 private IAppTask mAppTaskImpl; 4192 4193 /** @hide */ 4194 public AppTask(IAppTask task) { 4195 mAppTaskImpl = task; 4196 } 4197 4198 /** 4199 * Finishes all activities in this task and removes it from the recent tasks list. 4200 */ 4201 public void finishAndRemoveTask() { 4202 try { 4203 mAppTaskImpl.finishAndRemoveTask(); 4204 } catch (RemoteException e) { 4205 throw e.rethrowFromSystemServer(); 4206 } 4207 } 4208 4209 /** 4210 * Get the RecentTaskInfo associated with this task. 4211 * 4212 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4213 */ 4214 public RecentTaskInfo getTaskInfo() { 4215 try { 4216 return mAppTaskImpl.getTaskInfo(); 4217 } catch (RemoteException e) { 4218 throw e.rethrowFromSystemServer(); 4219 } 4220 } 4221 4222 /** 4223 * Bring this task to the foreground. If it contains activities, they will be 4224 * brought to the foreground with it and their instances re-created if needed. 4225 * If it doesn't contain activities, the root activity of the task will be 4226 * re-launched. 4227 */ 4228 public void moveToFront() { 4229 try { 4230 mAppTaskImpl.moveToFront(); 4231 } catch (RemoteException e) { 4232 throw e.rethrowFromSystemServer(); 4233 } 4234 } 4235 4236 /** 4237 * Start an activity in this task. Brings the task to the foreground. If this task 4238 * is not currently active (that is, its id < 0), then a new activity for the given 4239 * Intent will be launched as the root of the task and the task brought to the 4240 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4241 * an activity to launch in a new task, then a new activity for the given Intent will 4242 * be launched on top of the task and the task brought to the foreground. If this 4243 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4244 * or would otherwise be launched in to a new task, then the activity not launched but 4245 * this task be brought to the foreground and a new intent delivered to the top 4246 * activity if appropriate. 4247 * 4248 * <p>In other words, you generally want to use an Intent here that does not specify 4249 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4250 * and let the system do the right thing.</p> 4251 * 4252 * @param intent The Intent describing the new activity to be launched on the task. 4253 * @param options Optional launch options. 4254 * 4255 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4256 */ 4257 public void startActivity(Context context, Intent intent, Bundle options) { 4258 ActivityThread thread = ActivityThread.currentActivityThread(); 4259 thread.getInstrumentation().execStartActivityFromAppTask(context, 4260 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4261 } 4262 4263 /** 4264 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4265 * Intent of this AppTask. 4266 * 4267 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4268 * be set; otherwise, it will be cleared. 4269 */ 4270 public void setExcludeFromRecents(boolean exclude) { 4271 try { 4272 mAppTaskImpl.setExcludeFromRecents(exclude); 4273 } catch (RemoteException e) { 4274 throw e.rethrowFromSystemServer(); 4275 } 4276 } 4277 } 4278} 4279