ActivityManager.java revision 5f085792f6907ef25c8c71943489a0584062cc92
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.Build; 34import android.os.Build.VERSION_CODES; 35import android.os.IBinder; 36import android.os.ParcelFileDescriptor; 37 38import com.android.internal.app.procstats.ProcessStats; 39import com.android.internal.os.RoSystemProperties; 40import com.android.internal.os.TransferPipe; 41import com.android.internal.util.FastPrintWriter; 42import com.android.server.LocalServices; 43 44import android.content.ComponentName; 45import android.content.Context; 46import android.content.Intent; 47import android.content.UriPermission; 48import android.content.pm.ApplicationInfo; 49import android.content.pm.ConfigurationInfo; 50import android.content.pm.IPackageDataObserver; 51import android.content.pm.PackageManager; 52import android.content.pm.ParceledListSlice; 53import android.content.pm.UserInfo; 54import android.content.res.Resources; 55import android.graphics.Bitmap; 56import android.graphics.Color; 57import android.graphics.Rect; 58import android.os.Bundle; 59import android.os.Debug; 60import android.os.Handler; 61import android.os.Parcel; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import org.xmlpull.v1.XmlSerializer; 75 76import java.io.FileDescriptor; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.lang.annotation.Retention; 81import java.lang.annotation.RetentionPolicy; 82import java.util.ArrayList; 83import java.util.List; 84 85/** 86 * <p> 87 * This class gives information about, and interacts 88 * with, activities, services, and the containing 89 * process. 90 * </p> 91 * 92 * <p> 93 * A number of the methods in this class are for 94 * debugging or informational purposes and they should 95 * not be used to affect any runtime behavior of 96 * your app. These methods are called out as such in 97 * the method level documentation. 98 * </p> 99 * 100 *<p> 101 * Most application developers should not have the need to 102 * use this class, most of whose methods are for specialized 103 * use cases. However, a few methods are more broadly applicable. 104 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 105 * enables your app to detect whether it is running on a low-memory device, 106 * and behave accordingly. 107 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 108 * is for apps with reset-data functionality. 109 * </p> 110 * 111 * <p> 112 * In some special use cases, where an app interacts with 113 * its Task stack, the app may use the 114 * {@link android.app.ActivityManager.AppTask} and 115 * {@link android.app.ActivityManager.RecentTaskInfo} inner 116 * classes. However, in general, the methods in this class should 117 * be used for testing and debugging purposes only. 118 * </p> 119 */ 120public class ActivityManager { 121 private static String TAG = "ActivityManager"; 122 123 private static int gMaxRecentTasks = -1; 124 125 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 126 127 private final Context mContext; 128 129 private static volatile boolean sSystemReady = false; 130 131 /** 132 * System property to enable task snapshots. 133 * @hide 134 */ 135 public final static boolean ENABLE_TASK_SNAPSHOTS; 136 137 static { 138 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 139 } 140 141 static final class UidObserver extends IUidObserver.Stub { 142 final OnUidImportanceListener mListener; 143 final Context mContext; 144 145 UidObserver(OnUidImportanceListener listener, Context clientContext) { 146 mListener = listener; 147 mContext = clientContext; 148 } 149 150 @Override 151 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 152 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 153 procState, mContext)); 154 } 155 156 @Override 157 public void onUidGone(int uid, boolean disabled) { 158 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 159 } 160 161 @Override 162 public void onUidActive(int uid) { 163 } 164 165 @Override 166 public void onUidIdle(int uid, boolean disabled) { 167 } 168 } 169 170 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 171 172 /** 173 * Defines acceptable types of bugreports. 174 * @hide 175 */ 176 @Retention(RetentionPolicy.SOURCE) 177 @IntDef({ 178 BUGREPORT_OPTION_FULL, 179 BUGREPORT_OPTION_INTERACTIVE, 180 BUGREPORT_OPTION_REMOTE, 181 BUGREPORT_OPTION_WEAR, 182 BUGREPORT_OPTION_TELEPHONY 183 }) 184 public @interface BugreportMode {} 185 /** 186 * Takes a bugreport without user interference (and hence causing less 187 * interference to the system), but includes all sections. 188 * @hide 189 */ 190 public static final int BUGREPORT_OPTION_FULL = 0; 191 /** 192 * Allows user to monitor progress and enter additional data; might not include all 193 * sections. 194 * @hide 195 */ 196 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 197 /** 198 * Takes a bugreport requested remotely by administrator of the Device Owner app, 199 * not the device's user. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_REMOTE = 2; 203 /** 204 * Takes a bugreport on a wearable device. 205 * @hide 206 */ 207 public static final int BUGREPORT_OPTION_WEAR = 3; 208 209 /** 210 * Takes a lightweight version of bugreport that only includes a few, urgent sections 211 * used to report telephony bugs. 212 * @hide 213 */ 214 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 215 216 /** 217 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 218 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 219 * uninstalled in lieu of the declaring one. The package named here must be 220 * signed with the same certificate as the one declaring the {@code <meta-data>}. 221 */ 222 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 223 224 /** 225 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 226 * @hide 227 */ 228 public static final int START_VOICE_HIDDEN_SESSION = -10; 229 230 /** 231 * Result for IActivityManager.startVoiceActivity: active session does not match 232 * the requesting token. 233 * @hide 234 */ 235 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 236 237 /** 238 * Result for IActivityManager.startActivity: trying to start a background user 239 * activity that shouldn't be displayed for all users. 240 * @hide 241 */ 242 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 243 244 /** 245 * Result for IActivityManager.startActivity: trying to start an activity under voice 246 * control when that activity does not support the VOICE category. 247 * @hide 248 */ 249 public static final int START_NOT_VOICE_COMPATIBLE = -7; 250 251 /** 252 * Result for IActivityManager.startActivity: an error where the 253 * start had to be canceled. 254 * @hide 255 */ 256 public static final int START_CANCELED = -6; 257 258 /** 259 * Result for IActivityManager.startActivity: an error where the 260 * thing being started is not an activity. 261 * @hide 262 */ 263 public static final int START_NOT_ACTIVITY = -5; 264 265 /** 266 * Result for IActivityManager.startActivity: an error where the 267 * caller does not have permission to start the activity. 268 * @hide 269 */ 270 public static final int START_PERMISSION_DENIED = -4; 271 272 /** 273 * Result for IActivityManager.startActivity: an error where the 274 * caller has requested both to forward a result and to receive 275 * a result. 276 * @hide 277 */ 278 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 279 280 /** 281 * Result for IActivityManager.startActivity: an error where the 282 * requested class is not found. 283 * @hide 284 */ 285 public static final int START_CLASS_NOT_FOUND = -2; 286 287 /** 288 * Result for IActivityManager.startActivity: an error where the 289 * given Intent could not be resolved to an activity. 290 * @hide 291 */ 292 public static final int START_INTENT_NOT_RESOLVED = -1; 293 294 /** 295 * Result for IActivityManaqer.startActivity: the activity was started 296 * successfully as normal. 297 * @hide 298 */ 299 public static final int START_SUCCESS = 0; 300 301 /** 302 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 303 * be executed if it is the recipient, and that is indeed the case. 304 * @hide 305 */ 306 public static final int START_RETURN_INTENT_TO_CALLER = 1; 307 308 /** 309 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 310 * a task was simply brought to the foreground. 311 * @hide 312 */ 313 public static final int START_TASK_TO_FRONT = 2; 314 315 /** 316 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 317 * the given Intent was given to the existing top activity. 318 * @hide 319 */ 320 public static final int START_DELIVERED_TO_TOP = 3; 321 322 /** 323 * Result for IActivityManaqer.startActivity: request was canceled because 324 * app switches are temporarily canceled to ensure the user's last request 325 * (such as pressing home) is performed. 326 * @hide 327 */ 328 public static final int START_SWITCHES_CANCELED = 4; 329 330 /** 331 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 332 * while in Lock Task Mode. 333 * @hide 334 */ 335 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 336 337 /** 338 * Flag for IActivityManaqer.startActivity: do special start mode where 339 * a new activity is launched only if it is needed. 340 * @hide 341 */ 342 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 343 344 /** 345 * Flag for IActivityManaqer.startActivity: launch the app for 346 * debugging. 347 * @hide 348 */ 349 public static final int START_FLAG_DEBUG = 1<<1; 350 351 /** 352 * Flag for IActivityManaqer.startActivity: launch the app for 353 * allocation tracking. 354 * @hide 355 */ 356 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 357 358 /** 359 * Flag for IActivityManaqer.startActivity: launch the app with 360 * native debugging support. 361 * @hide 362 */ 363 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 364 365 /** 366 * Result for IActivityManaqer.broadcastIntent: success! 367 * @hide 368 */ 369 public static final int BROADCAST_SUCCESS = 0; 370 371 /** 372 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 373 * a sticky intent without appropriate permission. 374 * @hide 375 */ 376 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 377 378 /** 379 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 380 * to a stopped user. Fail. 381 * @hide 382 */ 383 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 384 385 /** 386 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 387 * for a sendBroadcast operation. 388 * @hide 389 */ 390 public static final int INTENT_SENDER_BROADCAST = 1; 391 392 /** 393 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 394 * for a startActivity operation. 395 * @hide 396 */ 397 public static final int INTENT_SENDER_ACTIVITY = 2; 398 399 /** 400 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 401 * for an activity result operation. 402 * @hide 403 */ 404 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 405 406 /** 407 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 408 * for a startService operation. 409 * @hide 410 */ 411 public static final int INTENT_SENDER_SERVICE = 4; 412 413 /** 414 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 415 * for a startForegroundService operation. 416 * @hide 417 */ 418 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 419 420 /** @hide User operation call: success! */ 421 public static final int USER_OP_SUCCESS = 0; 422 423 /** @hide User operation call: given user id is not known. */ 424 public static final int USER_OP_UNKNOWN_USER = -1; 425 426 /** @hide User operation call: given user id is the current user, can't be stopped. */ 427 public static final int USER_OP_IS_CURRENT = -2; 428 429 /** @hide User operation call: system user can't be stopped. */ 430 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 431 432 /** @hide User operation call: one of related users cannot be stopped. */ 433 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 434 435 /** @hide Not a real process state. */ 436 public static final int PROCESS_STATE_UNKNOWN = -1; 437 438 /** @hide Process is a persistent system process. */ 439 public static final int PROCESS_STATE_PERSISTENT = 0; 440 441 /** @hide Process is a persistent system process and is doing UI. */ 442 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 443 444 /** @hide Process is hosting the current top activities. Note that this covers 445 * all activities that are visible to the user. */ 446 public static final int PROCESS_STATE_TOP = 2; 447 448 /** @hide Process is hosting a foreground service due to a system binding. */ 449 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 450 451 /** @hide Process is hosting a foreground service. */ 452 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 453 454 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 455 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 456 457 /** @hide Process is important to the user, and something they are aware of. */ 458 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 459 460 /** @hide Process is important to the user, but not something they are aware of. */ 461 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 462 463 /** @hide Process is in the background running a backup/restore operation. */ 464 public static final int PROCESS_STATE_BACKUP = 8; 465 466 /** @hide Process is in the background, but it can't restore its state so we want 467 * to try to avoid killing it. */ 468 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 469 470 /** @hide Process is in the background running a service. Unlike oom_adj, this level 471 * is used for both the normal running in background state and the executing 472 * operations state. */ 473 public static final int PROCESS_STATE_SERVICE = 10; 474 475 /** @hide Process is in the background running a receiver. Note that from the 476 * perspective of oom_adj receivers run at a higher foreground level, but for our 477 * prioritization here that is not necessary and putting them below services means 478 * many fewer changes in some process states as they receive broadcasts. */ 479 public static final int PROCESS_STATE_RECEIVER = 11; 480 481 /** @hide Process is in the background but hosts the home activity. */ 482 public static final int PROCESS_STATE_HOME = 12; 483 484 /** @hide Process is in the background but hosts the last shown activity. */ 485 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 486 487 /** @hide Process is being cached for later use and contains activities. */ 488 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 489 490 /** @hide Process is being cached for later use and is a client of another cached 491 * process that contains activities. */ 492 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 493 494 /** @hide Process is being cached for later use and is empty. */ 495 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 496 497 /** @hide Process does not exist. */ 498 public static final int PROCESS_STATE_NONEXISTENT = 17; 499 500 /** @hide The lowest process state number */ 501 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 502 503 /** @hide The highest process state number */ 504 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 505 506 /** @hide Should this process state be considered a background state? */ 507 public static final boolean isProcStateBackground(int procState) { 508 return procState >= PROCESS_STATE_BACKUP; 509 } 510 511 /** @hide requestType for assist context: only basic information. */ 512 public static final int ASSIST_CONTEXT_BASIC = 0; 513 514 /** @hide requestType for assist context: generate full AssistStructure. */ 515 public static final int ASSIST_CONTEXT_FULL = 1; 516 517 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 518 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 519 520 /** @hide Flag for registerUidObserver: report changes in process state. */ 521 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 522 523 /** @hide Flag for registerUidObserver: report uid gone. */ 524 public static final int UID_OBSERVER_GONE = 1<<1; 525 526 /** @hide Flag for registerUidObserver: report uid has become idle. */ 527 public static final int UID_OBSERVER_IDLE = 1<<2; 528 529 /** @hide Flag for registerUidObserver: report uid has become active. */ 530 public static final int UID_OBSERVER_ACTIVE = 1<<3; 531 532 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 533 public static final int APP_START_MODE_NORMAL = 0; 534 535 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 536 public static final int APP_START_MODE_DELAYED = 1; 537 538 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 539 * rigid errors (throwing exception). */ 540 public static final int APP_START_MODE_DELAYED_RIGID = 2; 541 542 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 543 * launches; this is the mode for ephemeral apps. */ 544 public static final int APP_START_MODE_DISABLED = 3; 545 546 /** 547 * Lock task mode is not active. 548 */ 549 public static final int LOCK_TASK_MODE_NONE = 0; 550 551 /** 552 * Full lock task mode is active. 553 */ 554 public static final int LOCK_TASK_MODE_LOCKED = 1; 555 556 /** 557 * App pinning mode is active. 558 */ 559 public static final int LOCK_TASK_MODE_PINNED = 2; 560 561 Point mAppTaskThumbnailSize; 562 563 /*package*/ ActivityManager(Context context, Handler handler) { 564 mContext = context; 565 } 566 567 /** 568 * Screen compatibility mode: the application most always run in 569 * compatibility mode. 570 * @hide 571 */ 572 public static final int COMPAT_MODE_ALWAYS = -1; 573 574 /** 575 * Screen compatibility mode: the application can never run in 576 * compatibility mode. 577 * @hide 578 */ 579 public static final int COMPAT_MODE_NEVER = -2; 580 581 /** 582 * Screen compatibility mode: unknown. 583 * @hide 584 */ 585 public static final int COMPAT_MODE_UNKNOWN = -3; 586 587 /** 588 * Screen compatibility mode: the application currently has compatibility 589 * mode disabled. 590 * @hide 591 */ 592 public static final int COMPAT_MODE_DISABLED = 0; 593 594 /** 595 * Screen compatibility mode: the application currently has compatibility 596 * mode enabled. 597 * @hide 598 */ 599 public static final int COMPAT_MODE_ENABLED = 1; 600 601 /** 602 * Screen compatibility mode: request to toggle the application's 603 * compatibility mode. 604 * @hide 605 */ 606 public static final int COMPAT_MODE_TOGGLE = 2; 607 608 /** @hide */ 609 public static class StackId { 610 /** Invalid stack ID. */ 611 public static final int INVALID_STACK_ID = -1; 612 613 /** First static stack ID. */ 614 public static final int FIRST_STATIC_STACK_ID = 0; 615 616 /** Home activity stack ID. */ 617 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 618 619 /** ID of stack where fullscreen activities are normally launched into. */ 620 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 621 622 /** ID of stack where freeform/resized activities are normally launched into. */ 623 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 624 625 /** ID of stack that occupies a dedicated region of the screen. */ 626 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 627 628 /** ID of stack that always on top (always visible) when it exist. */ 629 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 630 631 /** ID of stack that contains the Recents activity. */ 632 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 633 634 /** ID of stack that contains activities launched by the assistant. */ 635 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 636 637 /** Last static stack stack ID. */ 638 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 639 640 /** Start of ID range used by stacks that are created dynamically. */ 641 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 642 643 public static boolean isStaticStack(int stackId) { 644 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 645 } 646 647 public static boolean isDynamicStack(int stackId) { 648 return stackId >= FIRST_DYNAMIC_STACK_ID; 649 } 650 651 /** 652 * Returns true if the activities contained in the input stack display a shadow around 653 * their border. 654 */ 655 public static boolean hasWindowShadow(int stackId) { 656 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 657 } 658 659 /** 660 * Returns true if the activities contained in the input stack display a decor view. 661 */ 662 public static boolean hasWindowDecor(int stackId) { 663 return stackId == FREEFORM_WORKSPACE_STACK_ID; 664 } 665 666 /** 667 * Returns true if the tasks contained in the stack can be resized independently of the 668 * stack. 669 */ 670 public static boolean isTaskResizeAllowed(int stackId) { 671 return stackId == FREEFORM_WORKSPACE_STACK_ID; 672 } 673 674 /** Returns true if the task bounds should persist across power cycles. */ 675 public static boolean persistTaskBounds(int stackId) { 676 return stackId == FREEFORM_WORKSPACE_STACK_ID; 677 } 678 679 /** 680 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 681 */ 682 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 683 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 684 } 685 686 /** 687 * Returns true if we try to maintain focus in the current stack when the top activity 688 * finishes. 689 */ 690 public static boolean keepFocusInStackIfPossible(int stackId) { 691 return stackId == FREEFORM_WORKSPACE_STACK_ID 692 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 693 } 694 695 /** 696 * Returns true if Stack size is affected by the docked stack changing size. 697 */ 698 public static boolean isResizeableByDockedStack(int stackId) { 699 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 700 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 701 } 702 703 /** 704 * Returns true if the size of tasks in the input stack are affected by the docked stack 705 * changing size. 706 */ 707 public static boolean isTaskResizeableByDockedStack(int stackId) { 708 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 709 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 710 && stackId != ASSISTANT_STACK_ID; 711 } 712 713 /** 714 * Returns true if the input stack is affected by drag resizing. 715 */ 716 public static boolean isStackAffectedByDragResizing(int stackId) { 717 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 718 && stackId != ASSISTANT_STACK_ID; 719 } 720 721 /** 722 * Returns true if the windows of tasks being moved to the target stack from the source 723 * stack should be replaced, meaning that window manager will keep the old window around 724 * until the new is ready. 725 */ 726 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 727 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 728 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 729 } 730 731 /** 732 * Return whether a stackId is a stack containing floating windows. Floating windows 733 * are laid out differently as they are allowed to extend past the display bounds 734 * without overscan insets. 735 */ 736 public static boolean tasksAreFloating(int stackId) { 737 return stackId == FREEFORM_WORKSPACE_STACK_ID 738 || stackId == PINNED_STACK_ID; 739 } 740 741 /** 742 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 743 * are generally fullscreen stacks. 744 */ 745 public static boolean isBackdropToTranslucentActivity(int stackId) { 746 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 747 || stackId == ASSISTANT_STACK_ID; 748 } 749 750 /** 751 * Returns true if animation specs should be constructed for app transition that moves 752 * the task to the specified stack. 753 */ 754 public static boolean useAnimationSpecForAppTransition(int stackId) { 755 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 756 // reboots. 757 return stackId == FREEFORM_WORKSPACE_STACK_ID 758 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 759 || stackId == ASSISTANT_STACK_ID 760 || stackId == DOCKED_STACK_ID 761 || stackId == INVALID_STACK_ID; 762 } 763 764 /** 765 * Returns true if the windows in the stack can receive input keys. 766 */ 767 public static boolean canReceiveKeys(int stackId) { 768 return stackId != PINNED_STACK_ID; 769 } 770 771 /** 772 * Returns true if the stack can be visible above lockscreen. 773 */ 774 public static boolean isAllowedOverLockscreen(int stackId) { 775 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 776 stackId == ASSISTANT_STACK_ID; 777 } 778 779 /** 780 * Returns true if activities from stasks in the given {@param stackId} are allowed to 781 * enter picture-in-picture. 782 */ 783 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 784 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 785 stackId != RECENTS_STACK_ID; 786 } 787 788 public static boolean isAlwaysOnTop(int stackId) { 789 return stackId == PINNED_STACK_ID; 790 } 791 792 /** 793 * Returns true if the top task in the task is allowed to return home when finished and 794 * there are other tasks in the stack. 795 */ 796 public static boolean allowTopTaskToReturnHome(int stackId) { 797 return stackId != PINNED_STACK_ID; 798 } 799 800 /** 801 * Returns true if the stack should be resized to match the bounds specified by 802 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 803 */ 804 public static boolean resizeStackWithLaunchBounds(int stackId) { 805 return stackId == PINNED_STACK_ID; 806 } 807 808 /** 809 * Returns true if any visible windows belonging to apps in this stack should be kept on 810 * screen when the app is killed due to something like the low memory killer. 811 */ 812 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 813 return stackId != PINNED_STACK_ID; 814 } 815 816 /** 817 * Returns true if the backdrop on the client side should match the frame of the window. 818 * Returns false, if the backdrop should be fullscreen. 819 */ 820 public static boolean useWindowFrameForBackdrop(int stackId) { 821 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 822 } 823 824 /** 825 * Returns true if a window from the specified stack with {@param stackId} are normally 826 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 827 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 828 * etc. 829 */ 830 public static boolean normallyFullscreenWindows(int stackId) { 831 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 832 && stackId != DOCKED_STACK_ID; 833 } 834 835 /** 836 * Returns true if the input stack id should only be present on a device that supports 837 * multi-window mode. 838 * @see android.app.ActivityManager#supportsMultiWindow 839 */ 840 public static boolean isMultiWindowStack(int stackId) { 841 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 842 || stackId == DOCKED_STACK_ID; 843 } 844 845 /** 846 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 847 */ 848 public static boolean isHomeOrRecentsStack(int stackId) { 849 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 850 } 851 852 /** 853 * Returns true if activities contained in this stack can request visible behind by 854 * calling {@link Activity#requestVisibleBehind}. 855 */ 856 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 857 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 858 stackId == ASSISTANT_STACK_ID; 859 } 860 861 /** 862 * Returns true if this stack may be scaled without resizing, and windows within may need 863 * to be configured as such. 864 */ 865 public static boolean windowsAreScaleable(int stackId) { 866 return stackId == PINNED_STACK_ID; 867 } 868 869 /** 870 * Returns true if windows in this stack should be given move animations by default. 871 */ 872 public static boolean hasMovementAnimations(int stackId) { 873 return stackId != PINNED_STACK_ID; 874 } 875 876 /** Returns true if the input stack and its content can affect the device orientation. */ 877 public static boolean canSpecifyOrientation(int stackId) { 878 return stackId == HOME_STACK_ID 879 || stackId == RECENTS_STACK_ID 880 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 881 || stackId == ASSISTANT_STACK_ID 882 || isDynamicStack(stackId); 883 } 884 } 885 886 /** 887 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 888 * specifies the position of the created docked stack at the top half of the screen if 889 * in portrait mode or at the left half of the screen if in landscape mode. 890 * @hide 891 */ 892 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 893 894 /** 895 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 896 * specifies the position of the created docked stack at the bottom half of the screen if 897 * in portrait mode or at the right half of the screen if in landscape mode. 898 * @hide 899 */ 900 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 901 902 /** 903 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 904 * that the resize doesn't need to preserve the window, and can be skipped if bounds 905 * is unchanged. This mode is used by window manager in most cases. 906 * @hide 907 */ 908 public static final int RESIZE_MODE_SYSTEM = 0; 909 910 /** 911 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 912 * that the resize should preserve the window if possible. 913 * @hide 914 */ 915 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 916 917 /** 918 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 919 * that the resize should be performed even if the bounds appears unchanged. 920 * @hide 921 */ 922 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 923 924 /** 925 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 926 * manager during a screen rotation. 927 * @hide 928 */ 929 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 930 931 /** 932 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 933 * resize is due to a drag action. 934 * @hide 935 */ 936 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 937 938 /** 939 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 940 * that the resize should preserve the window if possible, and should not be skipped 941 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 942 * is ending. 943 * @hide 944 */ 945 public static final int RESIZE_MODE_USER_FORCED = 946 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 947 948 /** @hide */ 949 public int getFrontActivityScreenCompatMode() { 950 try { 951 return getService().getFrontActivityScreenCompatMode(); 952 } catch (RemoteException e) { 953 throw e.rethrowFromSystemServer(); 954 } 955 } 956 957 /** @hide */ 958 public void setFrontActivityScreenCompatMode(int mode) { 959 try { 960 getService().setFrontActivityScreenCompatMode(mode); 961 } catch (RemoteException e) { 962 throw e.rethrowFromSystemServer(); 963 } 964 } 965 966 /** @hide */ 967 public int getPackageScreenCompatMode(String packageName) { 968 try { 969 return getService().getPackageScreenCompatMode(packageName); 970 } catch (RemoteException e) { 971 throw e.rethrowFromSystemServer(); 972 } 973 } 974 975 /** @hide */ 976 public void setPackageScreenCompatMode(String packageName, int mode) { 977 try { 978 getService().setPackageScreenCompatMode(packageName, mode); 979 } catch (RemoteException e) { 980 throw e.rethrowFromSystemServer(); 981 } 982 } 983 984 /** @hide */ 985 public boolean getPackageAskScreenCompat(String packageName) { 986 try { 987 return getService().getPackageAskScreenCompat(packageName); 988 } catch (RemoteException e) { 989 throw e.rethrowFromSystemServer(); 990 } 991 } 992 993 /** @hide */ 994 public void setPackageAskScreenCompat(String packageName, boolean ask) { 995 try { 996 getService().setPackageAskScreenCompat(packageName, ask); 997 } catch (RemoteException e) { 998 throw e.rethrowFromSystemServer(); 999 } 1000 } 1001 1002 /** 1003 * Return the approximate per-application memory class of the current 1004 * device. This gives you an idea of how hard a memory limit you should 1005 * impose on your application to let the overall system work best. The 1006 * returned value is in megabytes; the baseline Android memory class is 1007 * 16 (which happens to be the Java heap limit of those devices); some 1008 * device with more memory may return 24 or even higher numbers. 1009 */ 1010 public int getMemoryClass() { 1011 return staticGetMemoryClass(); 1012 } 1013 1014 /** @hide */ 1015 static public int staticGetMemoryClass() { 1016 // Really brain dead right now -- just take this from the configured 1017 // vm heap size, and assume it is in megabytes and thus ends with "m". 1018 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1019 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1020 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1021 } 1022 return staticGetLargeMemoryClass(); 1023 } 1024 1025 /** 1026 * Return the approximate per-application memory class of the current 1027 * device when an application is running with a large heap. This is the 1028 * space available for memory-intensive applications; most applications 1029 * should not need this amount of memory, and should instead stay with the 1030 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1031 * This may be the same size as {@link #getMemoryClass()} on memory 1032 * constrained devices, or it may be significantly larger on devices with 1033 * a large amount of available RAM. 1034 * 1035 * <p>The is the size of the application's Dalvik heap if it has 1036 * specified <code>android:largeHeap="true"</code> in its manifest. 1037 */ 1038 public int getLargeMemoryClass() { 1039 return staticGetLargeMemoryClass(); 1040 } 1041 1042 /** @hide */ 1043 static public int staticGetLargeMemoryClass() { 1044 // Really brain dead right now -- just take this from the configured 1045 // vm heap size, and assume it is in megabytes and thus ends with "m". 1046 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1047 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1048 } 1049 1050 /** 1051 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1052 * is ultimately up to the device configuration, but currently it generally means 1053 * something in the class of a 512MB device with about a 800x480 or less screen. 1054 * This is mostly intended to be used by apps to determine whether they should turn 1055 * off certain features that require more RAM. 1056 */ 1057 public boolean isLowRamDevice() { 1058 return isLowRamDeviceStatic(); 1059 } 1060 1061 /** @hide */ 1062 public static boolean isLowRamDeviceStatic() { 1063 return RoSystemProperties.CONFIG_LOW_RAM; 1064 } 1065 1066 /** 1067 * Used by persistent processes to determine if they are running on a 1068 * higher-end device so should be okay using hardware drawing acceleration 1069 * (which tends to consume a lot more RAM). 1070 * @hide 1071 */ 1072 static public boolean isHighEndGfx() { 1073 return !isLowRamDeviceStatic() && 1074 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1075 } 1076 1077 /** 1078 * Return the maximum number of recents entries that we will maintain and show. 1079 * @hide 1080 */ 1081 static public int getMaxRecentTasksStatic() { 1082 if (gMaxRecentTasks < 0) { 1083 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1084 } 1085 return gMaxRecentTasks; 1086 } 1087 1088 /** 1089 * Return the default limit on the number of recents that an app can make. 1090 * @hide 1091 */ 1092 static public int getDefaultAppRecentsLimitStatic() { 1093 return getMaxRecentTasksStatic() / 6; 1094 } 1095 1096 /** 1097 * Return the maximum limit on the number of recents that an app can make. 1098 * @hide 1099 */ 1100 static public int getMaxAppRecentsLimitStatic() { 1101 return getMaxRecentTasksStatic() / 2; 1102 } 1103 1104 /** 1105 * Returns true if the system supports at least one form of multi-window. 1106 * E.g. freeform, split-screen, picture-in-picture. 1107 * @hide 1108 */ 1109 static public boolean supportsMultiWindow() { 1110 return !isLowRamDeviceStatic() 1111 && Resources.getSystem().getBoolean( 1112 com.android.internal.R.bool.config_supportsMultiWindow); 1113 } 1114 1115 /** 1116 * Returns true if the system supports split screen multi-window. 1117 * @hide 1118 */ 1119 static public boolean supportsSplitScreenMultiWindow() { 1120 return supportsMultiWindow() 1121 && Resources.getSystem().getBoolean( 1122 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1123 } 1124 1125 /** 1126 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1127 * the user interacts with the activity currently in picture-in-picture mode. 1128 */ 1129 public static int getMaxNumPictureInPictureActions() { 1130 return NUM_ALLOWED_PIP_ACTIONS; 1131 } 1132 1133 /** 1134 * Information you can set and retrieve about the current activity within the recent task list. 1135 */ 1136 public static class TaskDescription implements Parcelable { 1137 /** @hide */ 1138 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1139 private static final String ATTR_TASKDESCRIPTIONLABEL = 1140 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1141 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1142 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1143 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1144 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1145 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1146 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1147 1148 private String mLabel; 1149 private Bitmap mIcon; 1150 private String mIconFilename; 1151 private int mColorPrimary; 1152 private int mColorBackground; 1153 private int mStatusBarColor; 1154 private int mNavigationBarColor; 1155 1156 /** 1157 * Creates the TaskDescription to the specified values. 1158 * 1159 * @param label A label and description of the current state of this task. 1160 * @param icon An icon that represents the current state of this task. 1161 * @param colorPrimary A color to override the theme's primary color. This color must be 1162 * opaque. 1163 */ 1164 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1165 this(label, icon, null, colorPrimary, 0, 0, 0); 1166 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1167 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1168 } 1169 } 1170 1171 /** 1172 * Creates the TaskDescription to the specified values. 1173 * 1174 * @param label A label and description of the current state of this activity. 1175 * @param icon An icon that represents the current state of this activity. 1176 */ 1177 public TaskDescription(String label, Bitmap icon) { 1178 this(label, icon, null, 0, 0, 0, 0); 1179 } 1180 1181 /** 1182 * Creates the TaskDescription to the specified values. 1183 * 1184 * @param label A label and description of the current state of this activity. 1185 */ 1186 public TaskDescription(String label) { 1187 this(label, null, null, 0, 0, 0, 0); 1188 } 1189 1190 /** 1191 * Creates an empty TaskDescription. 1192 */ 1193 public TaskDescription() { 1194 this(null, null, null, 0, 0, 0, 0); 1195 } 1196 1197 /** @hide */ 1198 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1199 int colorBackground, int statusBarColor, int navigationBarColor) { 1200 mLabel = label; 1201 mIcon = icon; 1202 mIconFilename = iconFilename; 1203 mColorPrimary = colorPrimary; 1204 mColorBackground = colorBackground; 1205 mStatusBarColor = statusBarColor; 1206 mNavigationBarColor = navigationBarColor; 1207 } 1208 1209 /** 1210 * Creates a copy of another TaskDescription. 1211 */ 1212 public TaskDescription(TaskDescription td) { 1213 copyFrom(td); 1214 } 1215 1216 /** 1217 * Copies this the values from another TaskDescription. 1218 * @hide 1219 */ 1220 public void copyFrom(TaskDescription other) { 1221 mLabel = other.mLabel; 1222 mIcon = other.mIcon; 1223 mIconFilename = other.mIconFilename; 1224 mColorPrimary = other.mColorPrimary; 1225 mColorBackground = other.mColorBackground; 1226 mStatusBarColor = other.mStatusBarColor; 1227 mNavigationBarColor = other.mNavigationBarColor; 1228 } 1229 1230 /** 1231 * Copies this the values from another TaskDescription, but preserves the hidden fields 1232 * if they weren't set on {@code other} 1233 * @hide 1234 */ 1235 public void copyFromPreserveHiddenFields(TaskDescription other) { 1236 mLabel = other.mLabel; 1237 mIcon = other.mIcon; 1238 mIconFilename = other.mIconFilename; 1239 mColorPrimary = other.mColorPrimary; 1240 if (other.mColorBackground != 0) { 1241 mColorBackground = other.mColorBackground; 1242 } 1243 if (other.mStatusBarColor != 0) { 1244 mStatusBarColor = other.mStatusBarColor; 1245 } 1246 if (other.mNavigationBarColor != 0) { 1247 mNavigationBarColor = other.mNavigationBarColor; 1248 } 1249 } 1250 1251 private TaskDescription(Parcel source) { 1252 readFromParcel(source); 1253 } 1254 1255 /** 1256 * Sets the label for this task description. 1257 * @hide 1258 */ 1259 public void setLabel(String label) { 1260 mLabel = label; 1261 } 1262 1263 /** 1264 * Sets the primary color for this task description. 1265 * @hide 1266 */ 1267 public void setPrimaryColor(int primaryColor) { 1268 // Ensure that the given color is valid 1269 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1270 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1271 } 1272 mColorPrimary = primaryColor; 1273 } 1274 1275 /** 1276 * Sets the background color for this task description. 1277 * @hide 1278 */ 1279 public void setBackgroundColor(int backgroundColor) { 1280 // Ensure that the given color is valid 1281 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1282 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1283 } 1284 mColorBackground = backgroundColor; 1285 } 1286 1287 /** 1288 * @hide 1289 */ 1290 public void setStatusBarColor(int statusBarColor) { 1291 mStatusBarColor = statusBarColor; 1292 } 1293 1294 /** 1295 * @hide 1296 */ 1297 public void setNavigationBarColor(int navigationBarColor) { 1298 mNavigationBarColor = navigationBarColor; 1299 } 1300 1301 /** 1302 * Sets the icon for this task description. 1303 * @hide 1304 */ 1305 public void setIcon(Bitmap icon) { 1306 mIcon = icon; 1307 } 1308 1309 /** 1310 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1311 * bitmap. 1312 * @hide 1313 */ 1314 public void setIconFilename(String iconFilename) { 1315 mIconFilename = iconFilename; 1316 mIcon = null; 1317 } 1318 1319 /** 1320 * @return The label and description of the current state of this task. 1321 */ 1322 public String getLabel() { 1323 return mLabel; 1324 } 1325 1326 /** 1327 * @return The icon that represents the current state of this task. 1328 */ 1329 public Bitmap getIcon() { 1330 if (mIcon != null) { 1331 return mIcon; 1332 } 1333 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1334 } 1335 1336 /** @hide */ 1337 public String getIconFilename() { 1338 return mIconFilename; 1339 } 1340 1341 /** @hide */ 1342 public Bitmap getInMemoryIcon() { 1343 return mIcon; 1344 } 1345 1346 /** @hide */ 1347 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1348 if (iconFilename != null) { 1349 try { 1350 return getService().getTaskDescriptionIcon(iconFilename, 1351 userId); 1352 } catch (RemoteException e) { 1353 throw e.rethrowFromSystemServer(); 1354 } 1355 } 1356 return null; 1357 } 1358 1359 /** 1360 * @return The color override on the theme's primary color. 1361 */ 1362 public int getPrimaryColor() { 1363 return mColorPrimary; 1364 } 1365 1366 /** 1367 * @return The background color. 1368 * @hide 1369 */ 1370 public int getBackgroundColor() { 1371 return mColorBackground; 1372 } 1373 1374 /** 1375 * @hide 1376 */ 1377 public int getStatusBarColor() { 1378 return mStatusBarColor; 1379 } 1380 1381 /** 1382 * @hide 1383 */ 1384 public int getNavigationBarColor() { 1385 return mNavigationBarColor; 1386 } 1387 1388 /** @hide */ 1389 public void saveToXml(XmlSerializer out) throws IOException { 1390 if (mLabel != null) { 1391 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1392 } 1393 if (mColorPrimary != 0) { 1394 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1395 Integer.toHexString(mColorPrimary)); 1396 } 1397 if (mColorBackground != 0) { 1398 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1399 Integer.toHexString(mColorBackground)); 1400 } 1401 if (mIconFilename != null) { 1402 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1403 } 1404 } 1405 1406 /** @hide */ 1407 public void restoreFromXml(String attrName, String attrValue) { 1408 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1409 setLabel(attrValue); 1410 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1411 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1412 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1413 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1414 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1415 setIconFilename(attrValue); 1416 } 1417 } 1418 1419 @Override 1420 public int describeContents() { 1421 return 0; 1422 } 1423 1424 @Override 1425 public void writeToParcel(Parcel dest, int flags) { 1426 if (mLabel == null) { 1427 dest.writeInt(0); 1428 } else { 1429 dest.writeInt(1); 1430 dest.writeString(mLabel); 1431 } 1432 if (mIcon == null) { 1433 dest.writeInt(0); 1434 } else { 1435 dest.writeInt(1); 1436 mIcon.writeToParcel(dest, 0); 1437 } 1438 dest.writeInt(mColorPrimary); 1439 dest.writeInt(mColorBackground); 1440 dest.writeInt(mStatusBarColor); 1441 dest.writeInt(mNavigationBarColor); 1442 if (mIconFilename == null) { 1443 dest.writeInt(0); 1444 } else { 1445 dest.writeInt(1); 1446 dest.writeString(mIconFilename); 1447 } 1448 } 1449 1450 public void readFromParcel(Parcel source) { 1451 mLabel = source.readInt() > 0 ? source.readString() : null; 1452 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1453 mColorPrimary = source.readInt(); 1454 mColorBackground = source.readInt(); 1455 mStatusBarColor = source.readInt(); 1456 mNavigationBarColor = source.readInt(); 1457 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1458 } 1459 1460 public static final Creator<TaskDescription> CREATOR 1461 = new Creator<TaskDescription>() { 1462 public TaskDescription createFromParcel(Parcel source) { 1463 return new TaskDescription(source); 1464 } 1465 public TaskDescription[] newArray(int size) { 1466 return new TaskDescription[size]; 1467 } 1468 }; 1469 1470 @Override 1471 public String toString() { 1472 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1473 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1474 " colorBackground: " + mColorBackground + 1475 " statusBarColor: " + mColorBackground + 1476 " navigationBarColor: " + mNavigationBarColor; 1477 } 1478 } 1479 1480 /** 1481 * Information you can retrieve about tasks that the user has most recently 1482 * started or visited. 1483 */ 1484 public static class RecentTaskInfo implements Parcelable { 1485 /** 1486 * If this task is currently running, this is the identifier for it. 1487 * If it is not running, this will be -1. 1488 */ 1489 public int id; 1490 1491 /** 1492 * The true identifier of this task, valid even if it is not running. 1493 */ 1494 public int persistentId; 1495 1496 /** 1497 * The original Intent used to launch the task. You can use this 1498 * Intent to re-launch the task (if it is no longer running) or bring 1499 * the current task to the front. 1500 */ 1501 public Intent baseIntent; 1502 1503 /** 1504 * If this task was started from an alias, this is the actual 1505 * activity component that was initially started; the component of 1506 * the baseIntent in this case is the name of the actual activity 1507 * implementation that the alias referred to. Otherwise, this is null. 1508 */ 1509 public ComponentName origActivity; 1510 1511 /** 1512 * The actual activity component that started the task. 1513 * @hide 1514 */ 1515 @Nullable 1516 public ComponentName realActivity; 1517 1518 /** 1519 * Description of the task's last state. 1520 */ 1521 public CharSequence description; 1522 1523 /** 1524 * The id of the ActivityStack this Task was on most recently. 1525 * @hide 1526 */ 1527 public int stackId; 1528 1529 /** 1530 * The id of the user the task was running as. 1531 * @hide 1532 */ 1533 public int userId; 1534 1535 /** 1536 * The first time this task was active. 1537 * @hide 1538 */ 1539 public long firstActiveTime; 1540 1541 /** 1542 * The last time this task was active. 1543 * @hide 1544 */ 1545 public long lastActiveTime; 1546 1547 /** 1548 * The recent activity values for the highest activity in the stack to have set the values. 1549 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1550 */ 1551 public TaskDescription taskDescription; 1552 1553 /** 1554 * Task affiliation for grouping with other tasks. 1555 */ 1556 public int affiliatedTaskId; 1557 1558 /** 1559 * Task affiliation color of the source task with the affiliated task id. 1560 * 1561 * @hide 1562 */ 1563 public int affiliatedTaskColor; 1564 1565 /** 1566 * The component launched as the first activity in the task. 1567 * This can be considered the "application" of this task. 1568 */ 1569 public ComponentName baseActivity; 1570 1571 /** 1572 * The activity component at the top of the history stack of the task. 1573 * This is what the user is currently doing. 1574 */ 1575 public ComponentName topActivity; 1576 1577 /** 1578 * Number of activities in this task. 1579 */ 1580 public int numActivities; 1581 1582 /** 1583 * The bounds of the task. 1584 * @hide 1585 */ 1586 public Rect bounds; 1587 1588 /** 1589 * True if the task can go in the docked stack. 1590 * @hide 1591 */ 1592 public boolean supportsSplitScreenMultiWindow; 1593 1594 /** 1595 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1596 * @hide 1597 */ 1598 public int resizeMode; 1599 1600 public RecentTaskInfo() { 1601 } 1602 1603 @Override 1604 public int describeContents() { 1605 return 0; 1606 } 1607 1608 @Override 1609 public void writeToParcel(Parcel dest, int flags) { 1610 dest.writeInt(id); 1611 dest.writeInt(persistentId); 1612 if (baseIntent != null) { 1613 dest.writeInt(1); 1614 baseIntent.writeToParcel(dest, 0); 1615 } else { 1616 dest.writeInt(0); 1617 } 1618 ComponentName.writeToParcel(origActivity, dest); 1619 ComponentName.writeToParcel(realActivity, dest); 1620 TextUtils.writeToParcel(description, dest, 1621 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1622 if (taskDescription != null) { 1623 dest.writeInt(1); 1624 taskDescription.writeToParcel(dest, 0); 1625 } else { 1626 dest.writeInt(0); 1627 } 1628 dest.writeInt(stackId); 1629 dest.writeInt(userId); 1630 dest.writeLong(firstActiveTime); 1631 dest.writeLong(lastActiveTime); 1632 dest.writeInt(affiliatedTaskId); 1633 dest.writeInt(affiliatedTaskColor); 1634 ComponentName.writeToParcel(baseActivity, dest); 1635 ComponentName.writeToParcel(topActivity, dest); 1636 dest.writeInt(numActivities); 1637 if (bounds != null) { 1638 dest.writeInt(1); 1639 bounds.writeToParcel(dest, 0); 1640 } else { 1641 dest.writeInt(0); 1642 } 1643 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1644 dest.writeInt(resizeMode); 1645 } 1646 1647 public void readFromParcel(Parcel source) { 1648 id = source.readInt(); 1649 persistentId = source.readInt(); 1650 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1651 origActivity = ComponentName.readFromParcel(source); 1652 realActivity = ComponentName.readFromParcel(source); 1653 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1654 taskDescription = source.readInt() > 0 ? 1655 TaskDescription.CREATOR.createFromParcel(source) : null; 1656 stackId = source.readInt(); 1657 userId = source.readInt(); 1658 firstActiveTime = source.readLong(); 1659 lastActiveTime = source.readLong(); 1660 affiliatedTaskId = source.readInt(); 1661 affiliatedTaskColor = source.readInt(); 1662 baseActivity = ComponentName.readFromParcel(source); 1663 topActivity = ComponentName.readFromParcel(source); 1664 numActivities = source.readInt(); 1665 bounds = source.readInt() > 0 ? 1666 Rect.CREATOR.createFromParcel(source) : null; 1667 supportsSplitScreenMultiWindow = source.readInt() == 1; 1668 resizeMode = source.readInt(); 1669 } 1670 1671 public static final Creator<RecentTaskInfo> CREATOR 1672 = new Creator<RecentTaskInfo>() { 1673 public RecentTaskInfo createFromParcel(Parcel source) { 1674 return new RecentTaskInfo(source); 1675 } 1676 public RecentTaskInfo[] newArray(int size) { 1677 return new RecentTaskInfo[size]; 1678 } 1679 }; 1680 1681 private RecentTaskInfo(Parcel source) { 1682 readFromParcel(source); 1683 } 1684 } 1685 1686 /** 1687 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1688 * that have set their 1689 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1690 */ 1691 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1692 1693 /** 1694 * Provides a list that does not contain any 1695 * recent tasks that currently are not available to the user. 1696 */ 1697 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1698 1699 /** 1700 * Provides a list that contains recent tasks for all 1701 * profiles of a user. 1702 * @hide 1703 */ 1704 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1705 1706 /** 1707 * Ignores all tasks that are on the home stack. 1708 * @hide 1709 */ 1710 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1711 1712 /** 1713 * Ignores the top task in the docked stack. 1714 * @hide 1715 */ 1716 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1717 1718 /** 1719 * Ignores all tasks that are on the pinned stack. 1720 * @hide 1721 */ 1722 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1723 1724 /** 1725 * <p></p>Return a list of the tasks that the user has recently launched, with 1726 * the most recent being first and older ones after in order. 1727 * 1728 * <p><b>Note: this method is only intended for debugging and presenting 1729 * task management user interfaces</b>. This should never be used for 1730 * core logic in an application, such as deciding between different 1731 * behaviors based on the information found here. Such uses are 1732 * <em>not</em> supported, and will likely break in the future. For 1733 * example, if multiple applications can be actively running at the 1734 * same time, assumptions made about the meaning of the data here for 1735 * purposes of control flow will be incorrect.</p> 1736 * 1737 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1738 * no longer available to third party applications: the introduction of 1739 * document-centric recents means 1740 * it can leak personal information to the caller. For backwards compatibility, 1741 * it will still return a small subset of its data: at least the caller's 1742 * own tasks (though see {@link #getAppTasks()} for the correct supported 1743 * way to retrieve that information), and possibly some other tasks 1744 * such as home that are known to not be sensitive. 1745 * 1746 * @param maxNum The maximum number of entries to return in the list. The 1747 * actual number returned may be smaller, depending on how many tasks the 1748 * user has started and the maximum number the system can remember. 1749 * @param flags Information about what to return. May be any combination 1750 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1751 * 1752 * @return Returns a list of RecentTaskInfo records describing each of 1753 * the recent tasks. 1754 */ 1755 @Deprecated 1756 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1757 throws SecurityException { 1758 try { 1759 return getService().getRecentTasks(maxNum, 1760 flags, UserHandle.myUserId()).getList(); 1761 } catch (RemoteException e) { 1762 throw e.rethrowFromSystemServer(); 1763 } 1764 } 1765 1766 /** 1767 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1768 * specific user. It requires holding 1769 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1770 * @param maxNum The maximum number of entries to return in the list. The 1771 * actual number returned may be smaller, depending on how many tasks the 1772 * user has started and the maximum number the system can remember. 1773 * @param flags Information about what to return. May be any combination 1774 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1775 * 1776 * @return Returns a list of RecentTaskInfo records describing each of 1777 * the recent tasks. Most recently activated tasks go first. 1778 * 1779 * @hide 1780 */ 1781 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1782 throws SecurityException { 1783 try { 1784 return getService().getRecentTasks(maxNum, 1785 flags, userId).getList(); 1786 } catch (RemoteException e) { 1787 throw e.rethrowFromSystemServer(); 1788 } 1789 } 1790 1791 /** 1792 * Information you can retrieve about a particular task that is currently 1793 * "running" in the system. Note that a running task does not mean the 1794 * given task actually has a process it is actively running in; it simply 1795 * means that the user has gone to it and never closed it, but currently 1796 * the system may have killed its process and is only holding on to its 1797 * last state in order to restart it when the user returns. 1798 */ 1799 public static class RunningTaskInfo implements Parcelable { 1800 /** 1801 * A unique identifier for this task. 1802 */ 1803 public int id; 1804 1805 /** 1806 * The stack that currently contains this task. 1807 * @hide 1808 */ 1809 public int stackId; 1810 1811 /** 1812 * The component launched as the first activity in the task. This can 1813 * be considered the "application" of this task. 1814 */ 1815 public ComponentName baseActivity; 1816 1817 /** 1818 * The activity component at the top of the history stack of the task. 1819 * This is what the user is currently doing. 1820 */ 1821 public ComponentName topActivity; 1822 1823 /** 1824 * Thumbnail representation of the task's current state. Currently 1825 * always null. 1826 */ 1827 public Bitmap thumbnail; 1828 1829 /** 1830 * Description of the task's current state. 1831 */ 1832 public CharSequence description; 1833 1834 /** 1835 * Number of activities in this task. 1836 */ 1837 public int numActivities; 1838 1839 /** 1840 * Number of activities that are currently running (not stopped 1841 * and persisted) in this task. 1842 */ 1843 public int numRunning; 1844 1845 /** 1846 * Last time task was run. For sorting. 1847 * @hide 1848 */ 1849 public long lastActiveTime; 1850 1851 /** 1852 * True if the task can go in the docked stack. 1853 * @hide 1854 */ 1855 public boolean supportsSplitScreenMultiWindow; 1856 1857 /** 1858 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1859 * @hide 1860 */ 1861 public int resizeMode; 1862 1863 public RunningTaskInfo() { 1864 } 1865 1866 public int describeContents() { 1867 return 0; 1868 } 1869 1870 public void writeToParcel(Parcel dest, int flags) { 1871 dest.writeInt(id); 1872 dest.writeInt(stackId); 1873 ComponentName.writeToParcel(baseActivity, dest); 1874 ComponentName.writeToParcel(topActivity, dest); 1875 if (thumbnail != null) { 1876 dest.writeInt(1); 1877 thumbnail.writeToParcel(dest, 0); 1878 } else { 1879 dest.writeInt(0); 1880 } 1881 TextUtils.writeToParcel(description, dest, 1882 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1883 dest.writeInt(numActivities); 1884 dest.writeInt(numRunning); 1885 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1886 dest.writeInt(resizeMode); 1887 } 1888 1889 public void readFromParcel(Parcel source) { 1890 id = source.readInt(); 1891 stackId = source.readInt(); 1892 baseActivity = ComponentName.readFromParcel(source); 1893 topActivity = ComponentName.readFromParcel(source); 1894 if (source.readInt() != 0) { 1895 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1896 } else { 1897 thumbnail = null; 1898 } 1899 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1900 numActivities = source.readInt(); 1901 numRunning = source.readInt(); 1902 supportsSplitScreenMultiWindow = source.readInt() != 0; 1903 resizeMode = source.readInt(); 1904 } 1905 1906 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1907 public RunningTaskInfo createFromParcel(Parcel source) { 1908 return new RunningTaskInfo(source); 1909 } 1910 public RunningTaskInfo[] newArray(int size) { 1911 return new RunningTaskInfo[size]; 1912 } 1913 }; 1914 1915 private RunningTaskInfo(Parcel source) { 1916 readFromParcel(source); 1917 } 1918 } 1919 1920 /** 1921 * Get the list of tasks associated with the calling application. 1922 * 1923 * @return The list of tasks associated with the application making this call. 1924 * @throws SecurityException 1925 */ 1926 public List<ActivityManager.AppTask> getAppTasks() { 1927 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1928 List<IBinder> appTasks; 1929 try { 1930 appTasks = getService().getAppTasks(mContext.getPackageName()); 1931 } catch (RemoteException e) { 1932 throw e.rethrowFromSystemServer(); 1933 } 1934 int numAppTasks = appTasks.size(); 1935 for (int i = 0; i < numAppTasks; i++) { 1936 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1937 } 1938 return tasks; 1939 } 1940 1941 /** 1942 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1943 * with {@link #addAppTask}. 1944 */ 1945 public Size getAppTaskThumbnailSize() { 1946 synchronized (this) { 1947 ensureAppTaskThumbnailSizeLocked(); 1948 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1949 } 1950 } 1951 1952 private void ensureAppTaskThumbnailSizeLocked() { 1953 if (mAppTaskThumbnailSize == null) { 1954 try { 1955 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1956 } catch (RemoteException e) { 1957 throw e.rethrowFromSystemServer(); 1958 } 1959 } 1960 } 1961 1962 /** 1963 * Add a new {@link AppTask} for the calling application. This will create a new 1964 * recents entry that is added to the <b>end</b> of all existing recents. 1965 * 1966 * @param activity The activity that is adding the entry. This is used to help determine 1967 * the context that the new recents entry will be in. 1968 * @param intent The Intent that describes the recents entry. This is the same Intent that 1969 * you would have used to launch the activity for it. In generally you will want to set 1970 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1971 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1972 * entry will exist without an activity, so it doesn't make sense to not retain it when 1973 * its activity disappears. The given Intent here also must have an explicit ComponentName 1974 * set on it. 1975 * @param description Optional additional description information. 1976 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1977 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1978 * recreated in your process, probably in a way you don't like, before the recents entry 1979 * is added. 1980 * 1981 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1982 * most likely cause of failure is that there is no more room for more tasks for your app. 1983 */ 1984 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1985 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1986 Point size; 1987 synchronized (this) { 1988 ensureAppTaskThumbnailSizeLocked(); 1989 size = mAppTaskThumbnailSize; 1990 } 1991 final int tw = thumbnail.getWidth(); 1992 final int th = thumbnail.getHeight(); 1993 if (tw != size.x || th != size.y) { 1994 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1995 1996 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1997 float scale; 1998 float dx = 0, dy = 0; 1999 if (tw * size.x > size.y * th) { 2000 scale = (float) size.x / (float) th; 2001 dx = (size.y - tw * scale) * 0.5f; 2002 } else { 2003 scale = (float) size.y / (float) tw; 2004 dy = (size.x - th * scale) * 0.5f; 2005 } 2006 Matrix matrix = new Matrix(); 2007 matrix.setScale(scale, scale); 2008 matrix.postTranslate((int) (dx + 0.5f), 0); 2009 2010 Canvas canvas = new Canvas(bm); 2011 canvas.drawBitmap(thumbnail, matrix, null); 2012 canvas.setBitmap(null); 2013 2014 thumbnail = bm; 2015 } 2016 if (description == null) { 2017 description = new TaskDescription(); 2018 } 2019 try { 2020 return getService().addAppTask(activity.getActivityToken(), 2021 intent, description, thumbnail); 2022 } catch (RemoteException e) { 2023 throw e.rethrowFromSystemServer(); 2024 } 2025 } 2026 2027 /** 2028 * Return a list of the tasks that are currently running, with 2029 * the most recent being first and older ones after in order. Note that 2030 * "running" does not mean any of the task's code is currently loaded or 2031 * activity -- the task may have been frozen by the system, so that it 2032 * can be restarted in its previous state when next brought to the 2033 * foreground. 2034 * 2035 * <p><b>Note: this method is only intended for debugging and presenting 2036 * task management user interfaces</b>. This should never be used for 2037 * core logic in an application, such as deciding between different 2038 * behaviors based on the information found here. Such uses are 2039 * <em>not</em> supported, and will likely break in the future. For 2040 * example, if multiple applications can be actively running at the 2041 * same time, assumptions made about the meaning of the data here for 2042 * purposes of control flow will be incorrect.</p> 2043 * 2044 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2045 * is no longer available to third party 2046 * applications: the introduction of document-centric recents means 2047 * it can leak person information to the caller. For backwards compatibility, 2048 * it will still retu rn a small subset of its data: at least the caller's 2049 * own tasks, and possibly some other tasks 2050 * such as home that are known to not be sensitive. 2051 * 2052 * @param maxNum The maximum number of entries to return in the list. The 2053 * actual number returned may be smaller, depending on how many tasks the 2054 * user has started. 2055 * 2056 * @return Returns a list of RunningTaskInfo records describing each of 2057 * the running tasks. 2058 */ 2059 @Deprecated 2060 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2061 throws SecurityException { 2062 try { 2063 return getService().getTasks(maxNum, 0); 2064 } catch (RemoteException e) { 2065 throw e.rethrowFromSystemServer(); 2066 } 2067 } 2068 2069 /** 2070 * Completely remove the given task. 2071 * 2072 * @param taskId Identifier of the task to be removed. 2073 * @return Returns true if the given task was found and removed. 2074 * 2075 * @hide 2076 */ 2077 public boolean removeTask(int taskId) throws SecurityException { 2078 try { 2079 return getService().removeTask(taskId); 2080 } catch (RemoteException e) { 2081 throw e.rethrowFromSystemServer(); 2082 } 2083 } 2084 2085 /** 2086 * Metadata related to the {@link TaskThumbnail}. 2087 * 2088 * @hide 2089 */ 2090 public static class TaskThumbnailInfo implements Parcelable { 2091 /** @hide */ 2092 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2093 private static final String ATTR_TASK_WIDTH = 2094 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2095 private static final String ATTR_TASK_HEIGHT = 2096 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2097 private static final String ATTR_SCREEN_ORIENTATION = 2098 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2099 2100 public int taskWidth; 2101 public int taskHeight; 2102 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2103 2104 public TaskThumbnailInfo() { 2105 // Do nothing 2106 } 2107 2108 private TaskThumbnailInfo(Parcel source) { 2109 readFromParcel(source); 2110 } 2111 2112 /** 2113 * Resets this info state to the initial state. 2114 * @hide 2115 */ 2116 public void reset() { 2117 taskWidth = 0; 2118 taskHeight = 0; 2119 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2120 } 2121 2122 /** 2123 * Copies from another ThumbnailInfo. 2124 */ 2125 public void copyFrom(TaskThumbnailInfo o) { 2126 taskWidth = o.taskWidth; 2127 taskHeight = o.taskHeight; 2128 screenOrientation = o.screenOrientation; 2129 } 2130 2131 /** @hide */ 2132 public void saveToXml(XmlSerializer out) throws IOException { 2133 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2134 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2135 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2136 } 2137 2138 /** @hide */ 2139 public void restoreFromXml(String attrName, String attrValue) { 2140 if (ATTR_TASK_WIDTH.equals(attrName)) { 2141 taskWidth = Integer.parseInt(attrValue); 2142 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2143 taskHeight = Integer.parseInt(attrValue); 2144 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2145 screenOrientation = Integer.parseInt(attrValue); 2146 } 2147 } 2148 2149 public int describeContents() { 2150 return 0; 2151 } 2152 2153 public void writeToParcel(Parcel dest, int flags) { 2154 dest.writeInt(taskWidth); 2155 dest.writeInt(taskHeight); 2156 dest.writeInt(screenOrientation); 2157 } 2158 2159 public void readFromParcel(Parcel source) { 2160 taskWidth = source.readInt(); 2161 taskHeight = source.readInt(); 2162 screenOrientation = source.readInt(); 2163 } 2164 2165 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2166 public TaskThumbnailInfo createFromParcel(Parcel source) { 2167 return new TaskThumbnailInfo(source); 2168 } 2169 public TaskThumbnailInfo[] newArray(int size) { 2170 return new TaskThumbnailInfo[size]; 2171 } 2172 }; 2173 } 2174 2175 /** @hide */ 2176 public static class TaskThumbnail implements Parcelable { 2177 public Bitmap mainThumbnail; 2178 public ParcelFileDescriptor thumbnailFileDescriptor; 2179 public TaskThumbnailInfo thumbnailInfo; 2180 2181 public TaskThumbnail() { 2182 } 2183 2184 private TaskThumbnail(Parcel source) { 2185 readFromParcel(source); 2186 } 2187 2188 public int describeContents() { 2189 if (thumbnailFileDescriptor != null) { 2190 return thumbnailFileDescriptor.describeContents(); 2191 } 2192 return 0; 2193 } 2194 2195 public void writeToParcel(Parcel dest, int flags) { 2196 if (mainThumbnail != null) { 2197 dest.writeInt(1); 2198 mainThumbnail.writeToParcel(dest, flags); 2199 } else { 2200 dest.writeInt(0); 2201 } 2202 if (thumbnailFileDescriptor != null) { 2203 dest.writeInt(1); 2204 thumbnailFileDescriptor.writeToParcel(dest, flags); 2205 } else { 2206 dest.writeInt(0); 2207 } 2208 if (thumbnailInfo != null) { 2209 dest.writeInt(1); 2210 thumbnailInfo.writeToParcel(dest, flags); 2211 } else { 2212 dest.writeInt(0); 2213 } 2214 } 2215 2216 public void readFromParcel(Parcel source) { 2217 if (source.readInt() != 0) { 2218 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2219 } else { 2220 mainThumbnail = null; 2221 } 2222 if (source.readInt() != 0) { 2223 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2224 } else { 2225 thumbnailFileDescriptor = null; 2226 } 2227 if (source.readInt() != 0) { 2228 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2229 } else { 2230 thumbnailInfo = null; 2231 } 2232 } 2233 2234 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2235 public TaskThumbnail createFromParcel(Parcel source) { 2236 return new TaskThumbnail(source); 2237 } 2238 public TaskThumbnail[] newArray(int size) { 2239 return new TaskThumbnail[size]; 2240 } 2241 }; 2242 } 2243 2244 /** 2245 * Represents a task snapshot. 2246 * @hide 2247 */ 2248 public static class TaskSnapshot implements Parcelable { 2249 2250 private final GraphicBuffer mSnapshot; 2251 private final int mOrientation; 2252 private final Rect mContentInsets; 2253 private final boolean mReducedResolution; 2254 private final float mScale; 2255 2256 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2257 boolean reducedResolution, float scale) { 2258 mSnapshot = snapshot; 2259 mOrientation = orientation; 2260 mContentInsets = new Rect(contentInsets); 2261 mReducedResolution = reducedResolution; 2262 mScale = scale; 2263 } 2264 2265 private TaskSnapshot(Parcel source) { 2266 mSnapshot = source.readParcelable(null /* classLoader */); 2267 mOrientation = source.readInt(); 2268 mContentInsets = source.readParcelable(null /* classLoader */); 2269 mReducedResolution = source.readBoolean(); 2270 mScale = source.readFloat(); 2271 } 2272 2273 /** 2274 * @return The graphic buffer representing the screenshot. 2275 */ 2276 public GraphicBuffer getSnapshot() { 2277 return mSnapshot; 2278 } 2279 2280 /** 2281 * @return The screen orientation the screenshot was taken in. 2282 */ 2283 public int getOrientation() { 2284 return mOrientation; 2285 } 2286 2287 /** 2288 * @return The system/content insets on the snapshot. These can be clipped off in order to 2289 * remove any areas behind system bars in the snapshot. 2290 */ 2291 public Rect getContentInsets() { 2292 return mContentInsets; 2293 } 2294 2295 /** 2296 * @return Whether this snapshot is a down-sampled version of the full resolution. 2297 */ 2298 public boolean isReducedResolution() { 2299 return mReducedResolution; 2300 } 2301 2302 /** 2303 * @return The scale this snapshot was taken in. 2304 */ 2305 public float getScale() { 2306 return mScale; 2307 } 2308 2309 @Override 2310 public int describeContents() { 2311 return 0; 2312 } 2313 2314 @Override 2315 public void writeToParcel(Parcel dest, int flags) { 2316 dest.writeParcelable(mSnapshot, 0); 2317 dest.writeInt(mOrientation); 2318 dest.writeParcelable(mContentInsets, 0); 2319 dest.writeBoolean(mReducedResolution); 2320 dest.writeFloat(mScale); 2321 } 2322 2323 @Override 2324 public String toString() { 2325 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2326 + " mContentInsets=" + mContentInsets.toShortString() 2327 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2328 } 2329 2330 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2331 public TaskSnapshot createFromParcel(Parcel source) { 2332 return new TaskSnapshot(source); 2333 } 2334 public TaskSnapshot[] newArray(int size) { 2335 return new TaskSnapshot[size]; 2336 } 2337 }; 2338 } 2339 2340 /** @hide */ 2341 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2342 try { 2343 return getService().getTaskThumbnail(id); 2344 } catch (RemoteException e) { 2345 throw e.rethrowFromSystemServer(); 2346 } 2347 } 2348 2349 /** 2350 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2351 * activity along with the task, so it is positioned immediately behind 2352 * the task. 2353 */ 2354 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2355 2356 /** 2357 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2358 * user-instigated action, so the current activity will not receive a 2359 * hint that the user is leaving. 2360 */ 2361 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2362 2363 /** 2364 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2365 * with a null options argument. 2366 * 2367 * @param taskId The identifier of the task to be moved, as found in 2368 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2369 * @param flags Additional operational flags, 0 or more of 2370 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2371 */ 2372 public void moveTaskToFront(int taskId, int flags) { 2373 moveTaskToFront(taskId, flags, null); 2374 } 2375 2376 /** 2377 * Ask that the task associated with a given task ID be moved to the 2378 * front of the stack, so it is now visible to the user. Requires that 2379 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2380 * or a SecurityException will be thrown. 2381 * 2382 * @param taskId The identifier of the task to be moved, as found in 2383 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2384 * @param flags Additional operational flags, 0 or more of 2385 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2386 * @param options Additional options for the operation, either null or 2387 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2388 * Context.startActivity(Intent, Bundle)}. 2389 */ 2390 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2391 try { 2392 getService().moveTaskToFront(taskId, flags, options); 2393 } catch (RemoteException e) { 2394 throw e.rethrowFromSystemServer(); 2395 } 2396 } 2397 2398 /** 2399 * Information you can retrieve about a particular Service that is 2400 * currently running in the system. 2401 */ 2402 public static class RunningServiceInfo implements Parcelable { 2403 /** 2404 * The service component. 2405 */ 2406 public ComponentName service; 2407 2408 /** 2409 * If non-zero, this is the process the service is running in. 2410 */ 2411 public int pid; 2412 2413 /** 2414 * The UID that owns this service. 2415 */ 2416 public int uid; 2417 2418 /** 2419 * The name of the process this service runs in. 2420 */ 2421 public String process; 2422 2423 /** 2424 * Set to true if the service has asked to run as a foreground process. 2425 */ 2426 public boolean foreground; 2427 2428 /** 2429 * The time when the service was first made active, either by someone 2430 * starting or binding to it. This 2431 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2432 */ 2433 public long activeSince; 2434 2435 /** 2436 * Set to true if this service has been explicitly started. 2437 */ 2438 public boolean started; 2439 2440 /** 2441 * Number of clients connected to the service. 2442 */ 2443 public int clientCount; 2444 2445 /** 2446 * Number of times the service's process has crashed while the service 2447 * is running. 2448 */ 2449 public int crashCount; 2450 2451 /** 2452 * The time when there was last activity in the service (either 2453 * explicit requests to start it or clients binding to it). This 2454 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2455 */ 2456 public long lastActivityTime; 2457 2458 /** 2459 * If non-zero, this service is not currently running, but scheduled to 2460 * restart at the given time. 2461 */ 2462 public long restarting; 2463 2464 /** 2465 * Bit for {@link #flags}: set if this service has been 2466 * explicitly started. 2467 */ 2468 public static final int FLAG_STARTED = 1<<0; 2469 2470 /** 2471 * Bit for {@link #flags}: set if the service has asked to 2472 * run as a foreground process. 2473 */ 2474 public static final int FLAG_FOREGROUND = 1<<1; 2475 2476 /** 2477 * Bit for {@link #flags}: set if the service is running in a 2478 * core system process. 2479 */ 2480 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2481 2482 /** 2483 * Bit for {@link #flags}: set if the service is running in a 2484 * persistent process. 2485 */ 2486 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2487 2488 /** 2489 * Running flags. 2490 */ 2491 public int flags; 2492 2493 /** 2494 * For special services that are bound to by system code, this is 2495 * the package that holds the binding. 2496 */ 2497 public String clientPackage; 2498 2499 /** 2500 * For special services that are bound to by system code, this is 2501 * a string resource providing a user-visible label for who the 2502 * client is. 2503 */ 2504 public int clientLabel; 2505 2506 public RunningServiceInfo() { 2507 } 2508 2509 public int describeContents() { 2510 return 0; 2511 } 2512 2513 public void writeToParcel(Parcel dest, int flags) { 2514 ComponentName.writeToParcel(service, dest); 2515 dest.writeInt(pid); 2516 dest.writeInt(uid); 2517 dest.writeString(process); 2518 dest.writeInt(foreground ? 1 : 0); 2519 dest.writeLong(activeSince); 2520 dest.writeInt(started ? 1 : 0); 2521 dest.writeInt(clientCount); 2522 dest.writeInt(crashCount); 2523 dest.writeLong(lastActivityTime); 2524 dest.writeLong(restarting); 2525 dest.writeInt(this.flags); 2526 dest.writeString(clientPackage); 2527 dest.writeInt(clientLabel); 2528 } 2529 2530 public void readFromParcel(Parcel source) { 2531 service = ComponentName.readFromParcel(source); 2532 pid = source.readInt(); 2533 uid = source.readInt(); 2534 process = source.readString(); 2535 foreground = source.readInt() != 0; 2536 activeSince = source.readLong(); 2537 started = source.readInt() != 0; 2538 clientCount = source.readInt(); 2539 crashCount = source.readInt(); 2540 lastActivityTime = source.readLong(); 2541 restarting = source.readLong(); 2542 flags = source.readInt(); 2543 clientPackage = source.readString(); 2544 clientLabel = source.readInt(); 2545 } 2546 2547 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2548 public RunningServiceInfo createFromParcel(Parcel source) { 2549 return new RunningServiceInfo(source); 2550 } 2551 public RunningServiceInfo[] newArray(int size) { 2552 return new RunningServiceInfo[size]; 2553 } 2554 }; 2555 2556 private RunningServiceInfo(Parcel source) { 2557 readFromParcel(source); 2558 } 2559 } 2560 2561 /** 2562 * Return a list of the services that are currently running. 2563 * 2564 * <p><b>Note: this method is only intended for debugging or implementing 2565 * service management type user interfaces.</b></p> 2566 * 2567 * @param maxNum The maximum number of entries to return in the list. The 2568 * actual number returned may be smaller, depending on how many services 2569 * are running. 2570 * 2571 * @return Returns a list of RunningServiceInfo records describing each of 2572 * the running tasks. 2573 */ 2574 public List<RunningServiceInfo> getRunningServices(int maxNum) 2575 throws SecurityException { 2576 try { 2577 return getService() 2578 .getServices(maxNum, 0); 2579 } catch (RemoteException e) { 2580 throw e.rethrowFromSystemServer(); 2581 } 2582 } 2583 2584 /** 2585 * Returns a PendingIntent you can start to show a control panel for the 2586 * given running service. If the service does not have a control panel, 2587 * null is returned. 2588 */ 2589 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2590 throws SecurityException { 2591 try { 2592 return getService() 2593 .getRunningServiceControlPanel(service); 2594 } catch (RemoteException e) { 2595 throw e.rethrowFromSystemServer(); 2596 } 2597 } 2598 2599 /** 2600 * Information you can retrieve about the available memory through 2601 * {@link ActivityManager#getMemoryInfo}. 2602 */ 2603 public static class MemoryInfo implements Parcelable { 2604 /** 2605 * The available memory on the system. This number should not 2606 * be considered absolute: due to the nature of the kernel, a significant 2607 * portion of this memory is actually in use and needed for the overall 2608 * system to run well. 2609 */ 2610 public long availMem; 2611 2612 /** 2613 * The total memory accessible by the kernel. This is basically the 2614 * RAM size of the device, not including below-kernel fixed allocations 2615 * like DMA buffers, RAM for the baseband CPU, etc. 2616 */ 2617 public long totalMem; 2618 2619 /** 2620 * The threshold of {@link #availMem} at which we consider memory to be 2621 * low and start killing background services and other non-extraneous 2622 * processes. 2623 */ 2624 public long threshold; 2625 2626 /** 2627 * Set to true if the system considers itself to currently be in a low 2628 * memory situation. 2629 */ 2630 public boolean lowMemory; 2631 2632 /** @hide */ 2633 public long hiddenAppThreshold; 2634 /** @hide */ 2635 public long secondaryServerThreshold; 2636 /** @hide */ 2637 public long visibleAppThreshold; 2638 /** @hide */ 2639 public long foregroundAppThreshold; 2640 2641 public MemoryInfo() { 2642 } 2643 2644 public int describeContents() { 2645 return 0; 2646 } 2647 2648 public void writeToParcel(Parcel dest, int flags) { 2649 dest.writeLong(availMem); 2650 dest.writeLong(totalMem); 2651 dest.writeLong(threshold); 2652 dest.writeInt(lowMemory ? 1 : 0); 2653 dest.writeLong(hiddenAppThreshold); 2654 dest.writeLong(secondaryServerThreshold); 2655 dest.writeLong(visibleAppThreshold); 2656 dest.writeLong(foregroundAppThreshold); 2657 } 2658 2659 public void readFromParcel(Parcel source) { 2660 availMem = source.readLong(); 2661 totalMem = source.readLong(); 2662 threshold = source.readLong(); 2663 lowMemory = source.readInt() != 0; 2664 hiddenAppThreshold = source.readLong(); 2665 secondaryServerThreshold = source.readLong(); 2666 visibleAppThreshold = source.readLong(); 2667 foregroundAppThreshold = source.readLong(); 2668 } 2669 2670 public static final Creator<MemoryInfo> CREATOR 2671 = new Creator<MemoryInfo>() { 2672 public MemoryInfo createFromParcel(Parcel source) { 2673 return new MemoryInfo(source); 2674 } 2675 public MemoryInfo[] newArray(int size) { 2676 return new MemoryInfo[size]; 2677 } 2678 }; 2679 2680 private MemoryInfo(Parcel source) { 2681 readFromParcel(source); 2682 } 2683 } 2684 2685 /** 2686 * Return general information about the memory state of the system. This 2687 * can be used to help decide how to manage your own memory, though note 2688 * that polling is not recommended and 2689 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2690 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2691 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2692 * level of your process as needed, which gives a better hint for how to 2693 * manage its memory. 2694 */ 2695 public void getMemoryInfo(MemoryInfo outInfo) { 2696 try { 2697 getService().getMemoryInfo(outInfo); 2698 } catch (RemoteException e) { 2699 throw e.rethrowFromSystemServer(); 2700 } 2701 } 2702 2703 /** 2704 * Information you can retrieve about an ActivityStack in the system. 2705 * @hide 2706 */ 2707 public static class StackInfo implements Parcelable { 2708 public int stackId; 2709 public Rect bounds = new Rect(); 2710 public int[] taskIds; 2711 public String[] taskNames; 2712 public Rect[] taskBounds; 2713 public int[] taskUserIds; 2714 public ComponentName topActivity; 2715 public int displayId; 2716 public int userId; 2717 public boolean visible; 2718 // Index of the stack in the display's stack list, can be used for comparison of stack order 2719 public int position; 2720 2721 @Override 2722 public int describeContents() { 2723 return 0; 2724 } 2725 2726 @Override 2727 public void writeToParcel(Parcel dest, int flags) { 2728 dest.writeInt(stackId); 2729 dest.writeInt(bounds.left); 2730 dest.writeInt(bounds.top); 2731 dest.writeInt(bounds.right); 2732 dest.writeInt(bounds.bottom); 2733 dest.writeIntArray(taskIds); 2734 dest.writeStringArray(taskNames); 2735 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2736 dest.writeInt(boundsCount); 2737 for (int i = 0; i < boundsCount; i++) { 2738 dest.writeInt(taskBounds[i].left); 2739 dest.writeInt(taskBounds[i].top); 2740 dest.writeInt(taskBounds[i].right); 2741 dest.writeInt(taskBounds[i].bottom); 2742 } 2743 dest.writeIntArray(taskUserIds); 2744 dest.writeInt(displayId); 2745 dest.writeInt(userId); 2746 dest.writeInt(visible ? 1 : 0); 2747 dest.writeInt(position); 2748 if (topActivity != null) { 2749 dest.writeInt(1); 2750 topActivity.writeToParcel(dest, 0); 2751 } else { 2752 dest.writeInt(0); 2753 } 2754 } 2755 2756 public void readFromParcel(Parcel source) { 2757 stackId = source.readInt(); 2758 bounds = new Rect( 2759 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2760 taskIds = source.createIntArray(); 2761 taskNames = source.createStringArray(); 2762 final int boundsCount = source.readInt(); 2763 if (boundsCount > 0) { 2764 taskBounds = new Rect[boundsCount]; 2765 for (int i = 0; i < boundsCount; i++) { 2766 taskBounds[i] = new Rect(); 2767 taskBounds[i].set( 2768 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2769 } 2770 } else { 2771 taskBounds = null; 2772 } 2773 taskUserIds = source.createIntArray(); 2774 displayId = source.readInt(); 2775 userId = source.readInt(); 2776 visible = source.readInt() > 0; 2777 position = source.readInt(); 2778 if (source.readInt() > 0) { 2779 topActivity = ComponentName.readFromParcel(source); 2780 } 2781 } 2782 2783 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2784 @Override 2785 public StackInfo createFromParcel(Parcel source) { 2786 return new StackInfo(source); 2787 } 2788 @Override 2789 public StackInfo[] newArray(int size) { 2790 return new StackInfo[size]; 2791 } 2792 }; 2793 2794 public StackInfo() { 2795 } 2796 2797 private StackInfo(Parcel source) { 2798 readFromParcel(source); 2799 } 2800 2801 public String toString(String prefix) { 2802 StringBuilder sb = new StringBuilder(256); 2803 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2804 sb.append(" bounds="); sb.append(bounds.toShortString()); 2805 sb.append(" displayId="); sb.append(displayId); 2806 sb.append(" userId="); sb.append(userId); 2807 sb.append("\n"); 2808 prefix = prefix + " "; 2809 for (int i = 0; i < taskIds.length; ++i) { 2810 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2811 sb.append(": "); sb.append(taskNames[i]); 2812 if (taskBounds != null) { 2813 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2814 } 2815 sb.append(" userId=").append(taskUserIds[i]); 2816 sb.append(" visible=").append(visible); 2817 if (topActivity != null) { 2818 sb.append(" topActivity=").append(topActivity); 2819 } 2820 sb.append("\n"); 2821 } 2822 return sb.toString(); 2823 } 2824 2825 @Override 2826 public String toString() { 2827 return toString(""); 2828 } 2829 } 2830 2831 /** 2832 * @hide 2833 */ 2834 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2835 try { 2836 return getService().clearApplicationUserData(packageName, 2837 observer, UserHandle.myUserId()); 2838 } catch (RemoteException e) { 2839 throw e.rethrowFromSystemServer(); 2840 } 2841 } 2842 2843 /** 2844 * Permits an application to erase its own data from disk. This is equivalent to 2845 * the user choosing to clear the app's data from within the device settings UI. It 2846 * erases all dynamic data associated with the app -- its private data and data in its 2847 * private area on external storage -- but does not remove the installed application 2848 * itself, nor any OBB files. 2849 * 2850 * @return {@code true} if the application successfully requested that the application's 2851 * data be erased; {@code false} otherwise. 2852 */ 2853 public boolean clearApplicationUserData() { 2854 return clearApplicationUserData(mContext.getPackageName(), null); 2855 } 2856 2857 2858 /** 2859 * Permits an application to get the persistent URI permissions granted to another. 2860 * 2861 * <p>Typically called by Settings. 2862 * 2863 * @param packageName application to look for the granted permissions 2864 * @return list of granted URI permissions 2865 * 2866 * @hide 2867 */ 2868 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2869 try { 2870 return getService().getGrantedUriPermissions(packageName, 2871 UserHandle.myUserId()); 2872 } catch (RemoteException e) { 2873 throw e.rethrowFromSystemServer(); 2874 } 2875 } 2876 2877 /** 2878 * Permits an application to clear the persistent URI permissions granted to another. 2879 * 2880 * <p>Typically called by Settings. 2881 * 2882 * @param packageName application to clear its granted permissions 2883 * 2884 * @hide 2885 */ 2886 public void clearGrantedUriPermissions(String packageName) { 2887 try { 2888 getService().clearGrantedUriPermissions(packageName, 2889 UserHandle.myUserId()); 2890 } catch (RemoteException e) { 2891 throw e.rethrowFromSystemServer(); 2892 } 2893 } 2894 2895 /** 2896 * Information you can retrieve about any processes that are in an error condition. 2897 */ 2898 public static class ProcessErrorStateInfo implements Parcelable { 2899 /** 2900 * Condition codes 2901 */ 2902 public static final int NO_ERROR = 0; 2903 public static final int CRASHED = 1; 2904 public static final int NOT_RESPONDING = 2; 2905 2906 /** 2907 * The condition that the process is in. 2908 */ 2909 public int condition; 2910 2911 /** 2912 * The process name in which the crash or error occurred. 2913 */ 2914 public String processName; 2915 2916 /** 2917 * The pid of this process; 0 if none 2918 */ 2919 public int pid; 2920 2921 /** 2922 * The kernel user-ID that has been assigned to this process; 2923 * currently this is not a unique ID (multiple applications can have 2924 * the same uid). 2925 */ 2926 public int uid; 2927 2928 /** 2929 * The activity name associated with the error, if known. May be null. 2930 */ 2931 public String tag; 2932 2933 /** 2934 * A short message describing the error condition. 2935 */ 2936 public String shortMsg; 2937 2938 /** 2939 * A long message describing the error condition. 2940 */ 2941 public String longMsg; 2942 2943 /** 2944 * The stack trace where the error originated. May be null. 2945 */ 2946 public String stackTrace; 2947 2948 /** 2949 * to be deprecated: This value will always be null. 2950 */ 2951 public byte[] crashData = null; 2952 2953 public ProcessErrorStateInfo() { 2954 } 2955 2956 @Override 2957 public int describeContents() { 2958 return 0; 2959 } 2960 2961 @Override 2962 public void writeToParcel(Parcel dest, int flags) { 2963 dest.writeInt(condition); 2964 dest.writeString(processName); 2965 dest.writeInt(pid); 2966 dest.writeInt(uid); 2967 dest.writeString(tag); 2968 dest.writeString(shortMsg); 2969 dest.writeString(longMsg); 2970 dest.writeString(stackTrace); 2971 } 2972 2973 public void readFromParcel(Parcel source) { 2974 condition = source.readInt(); 2975 processName = source.readString(); 2976 pid = source.readInt(); 2977 uid = source.readInt(); 2978 tag = source.readString(); 2979 shortMsg = source.readString(); 2980 longMsg = source.readString(); 2981 stackTrace = source.readString(); 2982 } 2983 2984 public static final Creator<ProcessErrorStateInfo> CREATOR = 2985 new Creator<ProcessErrorStateInfo>() { 2986 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2987 return new ProcessErrorStateInfo(source); 2988 } 2989 public ProcessErrorStateInfo[] newArray(int size) { 2990 return new ProcessErrorStateInfo[size]; 2991 } 2992 }; 2993 2994 private ProcessErrorStateInfo(Parcel source) { 2995 readFromParcel(source); 2996 } 2997 } 2998 2999 /** 3000 * Returns a list of any processes that are currently in an error condition. The result 3001 * will be null if all processes are running properly at this time. 3002 * 3003 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3004 * current error conditions (it will not return an empty list). This list ordering is not 3005 * specified. 3006 */ 3007 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3008 try { 3009 return getService().getProcessesInErrorState(); 3010 } catch (RemoteException e) { 3011 throw e.rethrowFromSystemServer(); 3012 } 3013 } 3014 3015 /** 3016 * Information you can retrieve about a running process. 3017 */ 3018 public static class RunningAppProcessInfo implements Parcelable { 3019 /** 3020 * The name of the process that this object is associated with 3021 */ 3022 public String processName; 3023 3024 /** 3025 * The pid of this process; 0 if none 3026 */ 3027 public int pid; 3028 3029 /** 3030 * The user id of this process. 3031 */ 3032 public int uid; 3033 3034 /** 3035 * All packages that have been loaded into the process. 3036 */ 3037 public String pkgList[]; 3038 3039 /** 3040 * Constant for {@link #flags}: this is an app that is unable to 3041 * correctly save its state when going to the background, 3042 * so it can not be killed while in the background. 3043 * @hide 3044 */ 3045 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3046 3047 /** 3048 * Constant for {@link #flags}: this process is associated with a 3049 * persistent system app. 3050 * @hide 3051 */ 3052 public static final int FLAG_PERSISTENT = 1<<1; 3053 3054 /** 3055 * Constant for {@link #flags}: this process is associated with a 3056 * persistent system app. 3057 * @hide 3058 */ 3059 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3060 3061 /** 3062 * Flags of information. May be any of 3063 * {@link #FLAG_CANT_SAVE_STATE}. 3064 * @hide 3065 */ 3066 public int flags; 3067 3068 /** 3069 * Last memory trim level reported to the process: corresponds to 3070 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3071 * ComponentCallbacks2.onTrimMemory(int)}. 3072 */ 3073 public int lastTrimLevel; 3074 3075 /** 3076 * Constant for {@link #importance}: This process is running the 3077 * foreground UI; that is, it is the thing currently at the top of the screen 3078 * that the user is interacting with. 3079 */ 3080 public static final int IMPORTANCE_FOREGROUND = 100; 3081 3082 /** 3083 * Constant for {@link #importance}: This process is running a foreground 3084 * service, for example to perform music playback even while the user is 3085 * not immediately in the app. This generally indicates that the process 3086 * is doing something the user actively cares about. 3087 */ 3088 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3089 3090 /** 3091 * Constant for {@link #importance}: This process is running the foreground 3092 * UI, but the device is asleep so it is not visible to the user. This means 3093 * the user is not really aware of the process, because they can not see or 3094 * interact with it, but it is quite important because it what they expect to 3095 * return to once unlocking the device. 3096 */ 3097 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3098 3099 /** 3100 * Constant for {@link #importance}: This process is running something 3101 * that is actively visible to the user, though not in the immediate 3102 * foreground. This may be running a window that is behind the current 3103 * foreground (so paused and with its state saved, not interacting with 3104 * the user, but visible to them to some degree); it may also be running 3105 * other services under the system's control that it inconsiders important. 3106 */ 3107 public static final int IMPORTANCE_VISIBLE = 200; 3108 3109 /** 3110 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3111 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3112 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3113 * 3114 * @deprecated Use {@link #IMPORTANCE_PERCEPTIBLE} instead. 3115 */ 3116 @Deprecated 3117 public static final int IMPORTANCE_PERCEPTIBLE_DEPRECATED = 130; 3118 3119 /** 3120 * Constant for {@link #importance}: This process is not something the user 3121 * is directly aware of, but is otherwise perceptible to them to some degree. 3122 */ 3123 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3124 3125 /** 3126 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3127 * this wrong value 3128 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3129 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3130 * 3131 * @deprecated Use {@link #IMPORTANCE_CANT_SAVE_STATE} instead. 3132 * @hide 3133 */ 3134 @Deprecated 3135 public static final int IMPORTANCE_CANT_SAVE_STATE_DEPRECATED = 170; 3136 3137 /** 3138 * Constant for {@link #importance}: This process is running an 3139 * application that can not save its state, and thus can't be killed 3140 * while in the background. 3141 * @hide 3142 */ 3143 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3144 3145 /** 3146 * Constant for {@link #importance}: This process is contains services 3147 * that should remain running. These are background services apps have 3148 * started, not something the user is aware of, so they may be killed by 3149 * the system relatively freely (though it is generally desired that they 3150 * stay running as long as they want to). 3151 */ 3152 public static final int IMPORTANCE_SERVICE = 300; 3153 3154 /** 3155 * Constant for {@link #importance}: This process process contains 3156 * cached code that is expendable, not actively running any app components 3157 * we care about. 3158 */ 3159 public static final int IMPORTANCE_CACHED = 400; 3160 3161 /** 3162 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3163 */ 3164 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3165 3166 /** 3167 * Constant for {@link #importance}: This process is empty of any 3168 * actively running code. 3169 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3170 */ 3171 @Deprecated 3172 public static final int IMPORTANCE_EMPTY = 500; 3173 3174 /** 3175 * Constant for {@link #importance}: This process does not exist. 3176 */ 3177 public static final int IMPORTANCE_GONE = 1000; 3178 3179 /** 3180 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3181 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3182 * @hide 3183 */ 3184 public static int procStateToImportance(int procState) { 3185 if (procState == PROCESS_STATE_NONEXISTENT) { 3186 return IMPORTANCE_GONE; 3187 } else if (procState >= PROCESS_STATE_HOME) { 3188 return IMPORTANCE_CACHED; 3189 } else if (procState >= PROCESS_STATE_SERVICE) { 3190 return IMPORTANCE_SERVICE; 3191 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3192 return IMPORTANCE_CANT_SAVE_STATE; 3193 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3194 return IMPORTANCE_PERCEPTIBLE; 3195 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3196 return IMPORTANCE_VISIBLE; 3197 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3198 return IMPORTANCE_TOP_SLEEPING; 3199 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3200 return IMPORTANCE_FOREGROUND_SERVICE; 3201 } else { 3202 return IMPORTANCE_FOREGROUND; 3203 } 3204 } 3205 3206 /** 3207 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3208 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3209 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3210 * client's target SDK < {@link VERSION_CODES#O}. 3211 * @hide 3212 */ 3213 public static int procStateToImportanceForClient(int procState, Context clientContext) { 3214 final int importance = procStateToImportance(procState); 3215 3216 // For pre O apps, convert to the old, wrong values. 3217 if (clientContext.getApplicationInfo().targetSdkVersion < VERSION_CODES.O) { 3218 switch (importance) { 3219 case IMPORTANCE_PERCEPTIBLE: 3220 return IMPORTANCE_PERCEPTIBLE_DEPRECATED; 3221 case IMPORTANCE_CANT_SAVE_STATE: 3222 return IMPORTANCE_CANT_SAVE_STATE_DEPRECATED; 3223 } 3224 } 3225 return importance; 3226 } 3227 3228 /** @hide */ 3229 public static int importanceToProcState(int importance) { 3230 if (importance == IMPORTANCE_GONE) { 3231 return PROCESS_STATE_NONEXISTENT; 3232 } else if (importance >= IMPORTANCE_CACHED) { 3233 return PROCESS_STATE_HOME; 3234 } else if (importance >= IMPORTANCE_SERVICE) { 3235 return PROCESS_STATE_SERVICE; 3236 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3237 return PROCESS_STATE_HEAVY_WEIGHT; 3238 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3239 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3240 } else if (importance >= IMPORTANCE_VISIBLE) { 3241 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3242 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3243 return PROCESS_STATE_TOP_SLEEPING; 3244 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3245 return PROCESS_STATE_FOREGROUND_SERVICE; 3246 } else { 3247 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3248 } 3249 } 3250 3251 /** 3252 * The relative importance level that the system places on this 3253 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3254 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, or 3255 * {@link #IMPORTANCE_CACHED}. These 3256 * constants are numbered so that "more important" values are always 3257 * smaller than "less important" values. 3258 */ 3259 public int importance; 3260 3261 /** 3262 * An additional ordering within a particular {@link #importance} 3263 * category, providing finer-grained information about the relative 3264 * utility of processes within a category. This number means nothing 3265 * except that a smaller values are more recently used (and thus 3266 * more important). Currently an LRU value is only maintained for 3267 * the {@link #IMPORTANCE_CACHED} category, though others may 3268 * be maintained in the future. 3269 */ 3270 public int lru; 3271 3272 /** 3273 * Constant for {@link #importanceReasonCode}: nothing special has 3274 * been specified for the reason for this level. 3275 */ 3276 public static final int REASON_UNKNOWN = 0; 3277 3278 /** 3279 * Constant for {@link #importanceReasonCode}: one of the application's 3280 * content providers is being used by another process. The pid of 3281 * the client process is in {@link #importanceReasonPid} and the 3282 * target provider in this process is in 3283 * {@link #importanceReasonComponent}. 3284 */ 3285 public static final int REASON_PROVIDER_IN_USE = 1; 3286 3287 /** 3288 * Constant for {@link #importanceReasonCode}: one of the application's 3289 * content providers is being used by another process. The pid of 3290 * the client process is in {@link #importanceReasonPid} and the 3291 * target provider in this process is in 3292 * {@link #importanceReasonComponent}. 3293 */ 3294 public static final int REASON_SERVICE_IN_USE = 2; 3295 3296 /** 3297 * The reason for {@link #importance}, if any. 3298 */ 3299 public int importanceReasonCode; 3300 3301 /** 3302 * For the specified values of {@link #importanceReasonCode}, this 3303 * is the process ID of the other process that is a client of this 3304 * process. This will be 0 if no other process is using this one. 3305 */ 3306 public int importanceReasonPid; 3307 3308 /** 3309 * For the specified values of {@link #importanceReasonCode}, this 3310 * is the name of the component that is being used in this process. 3311 */ 3312 public ComponentName importanceReasonComponent; 3313 3314 /** 3315 * When {@link #importanceReasonPid} is non-0, this is the importance 3316 * of the other pid. @hide 3317 */ 3318 public int importanceReasonImportance; 3319 3320 /** 3321 * Current process state, as per PROCESS_STATE_* constants. 3322 * @hide 3323 */ 3324 public int processState; 3325 3326 public RunningAppProcessInfo() { 3327 importance = IMPORTANCE_FOREGROUND; 3328 importanceReasonCode = REASON_UNKNOWN; 3329 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3330 } 3331 3332 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3333 processName = pProcessName; 3334 pid = pPid; 3335 pkgList = pArr; 3336 } 3337 3338 public int describeContents() { 3339 return 0; 3340 } 3341 3342 public void writeToParcel(Parcel dest, int flags) { 3343 dest.writeString(processName); 3344 dest.writeInt(pid); 3345 dest.writeInt(uid); 3346 dest.writeStringArray(pkgList); 3347 dest.writeInt(this.flags); 3348 dest.writeInt(lastTrimLevel); 3349 dest.writeInt(importance); 3350 dest.writeInt(lru); 3351 dest.writeInt(importanceReasonCode); 3352 dest.writeInt(importanceReasonPid); 3353 ComponentName.writeToParcel(importanceReasonComponent, dest); 3354 dest.writeInt(importanceReasonImportance); 3355 dest.writeInt(processState); 3356 } 3357 3358 public void readFromParcel(Parcel source) { 3359 processName = source.readString(); 3360 pid = source.readInt(); 3361 uid = source.readInt(); 3362 pkgList = source.readStringArray(); 3363 flags = source.readInt(); 3364 lastTrimLevel = source.readInt(); 3365 importance = source.readInt(); 3366 lru = source.readInt(); 3367 importanceReasonCode = source.readInt(); 3368 importanceReasonPid = source.readInt(); 3369 importanceReasonComponent = ComponentName.readFromParcel(source); 3370 importanceReasonImportance = source.readInt(); 3371 processState = source.readInt(); 3372 } 3373 3374 public static final Creator<RunningAppProcessInfo> CREATOR = 3375 new Creator<RunningAppProcessInfo>() { 3376 public RunningAppProcessInfo createFromParcel(Parcel source) { 3377 return new RunningAppProcessInfo(source); 3378 } 3379 public RunningAppProcessInfo[] newArray(int size) { 3380 return new RunningAppProcessInfo[size]; 3381 } 3382 }; 3383 3384 private RunningAppProcessInfo(Parcel source) { 3385 readFromParcel(source); 3386 } 3387 } 3388 3389 /** 3390 * Returns a list of application processes installed on external media 3391 * that are running on the device. 3392 * 3393 * <p><b>Note: this method is only intended for debugging or building 3394 * a user-facing process management UI.</b></p> 3395 * 3396 * @return Returns a list of ApplicationInfo records, or null if none 3397 * This list ordering is not specified. 3398 * @hide 3399 */ 3400 public List<ApplicationInfo> getRunningExternalApplications() { 3401 try { 3402 return getService().getRunningExternalApplications(); 3403 } catch (RemoteException e) { 3404 throw e.rethrowFromSystemServer(); 3405 } 3406 } 3407 3408 /** 3409 * Sets the memory trim mode for a process and schedules a memory trim operation. 3410 * 3411 * <p><b>Note: this method is only intended for testing framework.</b></p> 3412 * 3413 * @return Returns true if successful. 3414 * @hide 3415 */ 3416 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3417 try { 3418 return getService().setProcessMemoryTrimLevel(process, userId, 3419 level); 3420 } catch (RemoteException e) { 3421 throw e.rethrowFromSystemServer(); 3422 } 3423 } 3424 3425 /** 3426 * Returns a list of application processes that are running on the device. 3427 * 3428 * <p><b>Note: this method is only intended for debugging or building 3429 * a user-facing process management UI.</b></p> 3430 * 3431 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3432 * running processes (it will not return an empty list). This list ordering is not 3433 * specified. 3434 */ 3435 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3436 try { 3437 return getService().getRunningAppProcesses(); 3438 } catch (RemoteException e) { 3439 throw e.rethrowFromSystemServer(); 3440 } 3441 } 3442 3443 /** 3444 * Return the importance of a given package name, based on the processes that are 3445 * currently running. The return value is one of the importance constants defined 3446 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3447 * processes that this package has code running inside of. If there are no processes 3448 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3449 * @hide 3450 */ 3451 @SystemApi @TestApi 3452 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3453 public int getPackageImportance(String packageName) { 3454 try { 3455 int procState = getService().getPackageProcessState(packageName, 3456 mContext.getOpPackageName()); 3457 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3458 } catch (RemoteException e) { 3459 throw e.rethrowFromSystemServer(); 3460 } 3461 } 3462 3463 /** 3464 * Return the importance of a given uid, based on the processes that are 3465 * currently running. The return value is one of the importance constants defined 3466 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3467 * processes that this uid has running. If there are no processes 3468 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3469 * @hide 3470 */ 3471 @SystemApi @TestApi 3472 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3473 public int getUidImportance(int uid) { 3474 try { 3475 int procState = getService().getUidProcessState(uid, 3476 mContext.getOpPackageName()); 3477 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3478 } catch (RemoteException e) { 3479 throw e.rethrowFromSystemServer(); 3480 } 3481 } 3482 3483 /** 3484 * Callback to get reports about changes to the importance of a uid. Use with 3485 * {@link #addOnUidImportanceListener}. 3486 * @hide 3487 */ 3488 @SystemApi @TestApi 3489 public interface OnUidImportanceListener { 3490 /** 3491 * The importance if a given uid has changed. Will be one of the importance 3492 * values in {@link RunningAppProcessInfo}; 3493 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3494 * when the uid is no longer running at all. This callback will happen on a thread 3495 * from a thread pool, not the main UI thread. 3496 * @param uid The uid whose importance has changed. 3497 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3498 */ 3499 void onUidImportance(int uid, int importance); 3500 } 3501 3502 /** 3503 * Start monitoring changes to the imoportance of uids running in the system. 3504 * @param listener The listener callback that will receive change reports. 3505 * @param importanceCutpoint The level of importance in which the caller is interested 3506 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3507 * is used here, you will receive a call each time a uids importance transitions between 3508 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3509 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3510 * 3511 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3512 * permission to use this feature.</p> 3513 * 3514 * @throws IllegalArgumentException If the listener is already registered. 3515 * @throws SecurityException If the caller does not hold 3516 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3517 * @hide 3518 */ 3519 @SystemApi @TestApi 3520 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3521 int importanceCutpoint) { 3522 synchronized (this) { 3523 if (mImportanceListeners.containsKey(listener)) { 3524 throw new IllegalArgumentException("Listener already registered: " + listener); 3525 } 3526 // TODO: implement the cut point in the system process to avoid IPCs. 3527 UidObserver observer = new UidObserver(listener, mContext); 3528 try { 3529 getService().registerUidObserver(observer, 3530 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3531 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3532 mContext.getOpPackageName()); 3533 } catch (RemoteException e) { 3534 throw e.rethrowFromSystemServer(); 3535 } 3536 mImportanceListeners.put(listener, observer); 3537 } 3538 } 3539 3540 /** 3541 * Remove an importance listener that was previously registered with 3542 * {@link #addOnUidImportanceListener}. 3543 * 3544 * @throws IllegalArgumentException If the listener is not registered. 3545 * @hide 3546 */ 3547 @SystemApi @TestApi 3548 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3549 synchronized (this) { 3550 UidObserver observer = mImportanceListeners.remove(listener); 3551 if (observer == null) { 3552 throw new IllegalArgumentException("Listener not registered: " + listener); 3553 } 3554 try { 3555 getService().unregisterUidObserver(observer); 3556 } catch (RemoteException e) { 3557 throw e.rethrowFromSystemServer(); 3558 } 3559 } 3560 } 3561 3562 /** 3563 * Return global memory state information for the calling process. This 3564 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3565 * only fields that will be filled in are 3566 * {@link RunningAppProcessInfo#pid}, 3567 * {@link RunningAppProcessInfo#uid}, 3568 * {@link RunningAppProcessInfo#lastTrimLevel}, 3569 * {@link RunningAppProcessInfo#importance}, 3570 * {@link RunningAppProcessInfo#lru}, and 3571 * {@link RunningAppProcessInfo#importanceReasonCode}. 3572 */ 3573 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3574 try { 3575 getService().getMyMemoryState(outState); 3576 } catch (RemoteException e) { 3577 throw e.rethrowFromSystemServer(); 3578 } 3579 } 3580 3581 /** 3582 * Return information about the memory usage of one or more processes. 3583 * 3584 * <p><b>Note: this method is only intended for debugging or building 3585 * a user-facing process management UI.</b></p> 3586 * 3587 * @param pids The pids of the processes whose memory usage is to be 3588 * retrieved. 3589 * @return Returns an array of memory information, one for each 3590 * requested pid. 3591 */ 3592 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3593 try { 3594 return getService().getProcessMemoryInfo(pids); 3595 } catch (RemoteException e) { 3596 throw e.rethrowFromSystemServer(); 3597 } 3598 } 3599 3600 /** 3601 * @deprecated This is now just a wrapper for 3602 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3603 * is no longer available to applications because it allows them to 3604 * break other applications by removing their alarms, stopping their 3605 * services, etc. 3606 */ 3607 @Deprecated 3608 public void restartPackage(String packageName) { 3609 killBackgroundProcesses(packageName); 3610 } 3611 3612 /** 3613 * Have the system immediately kill all background processes associated 3614 * with the given package. This is the same as the kernel killing those 3615 * processes to reclaim memory; the system will take care of restarting 3616 * these processes in the future as needed. 3617 * 3618 * <p>You must hold the permission 3619 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3620 * call this method. 3621 * 3622 * @param packageName The name of the package whose processes are to 3623 * be killed. 3624 */ 3625 public void killBackgroundProcesses(String packageName) { 3626 try { 3627 getService().killBackgroundProcesses(packageName, 3628 UserHandle.myUserId()); 3629 } catch (RemoteException e) { 3630 throw e.rethrowFromSystemServer(); 3631 } 3632 } 3633 3634 /** 3635 * Kills the specified UID. 3636 * @param uid The UID to kill. 3637 * @param reason The reason for the kill. 3638 * 3639 * @hide 3640 */ 3641 @SystemApi 3642 @RequiresPermission(Manifest.permission.KILL_UID) 3643 public void killUid(int uid, String reason) { 3644 try { 3645 getService().killUid(UserHandle.getAppId(uid), 3646 UserHandle.getUserId(uid), reason); 3647 } catch (RemoteException e) { 3648 throw e.rethrowFromSystemServer(); 3649 } 3650 } 3651 3652 /** 3653 * Have the system perform a force stop of everything associated with 3654 * the given application package. All processes that share its uid 3655 * will be killed, all services it has running stopped, all activities 3656 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3657 * broadcast will be sent, so that any of its registered alarms can 3658 * be stopped, notifications removed, etc. 3659 * 3660 * <p>You must hold the permission 3661 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3662 * call this method. 3663 * 3664 * @param packageName The name of the package to be stopped. 3665 * @param userId The user for which the running package is to be stopped. 3666 * 3667 * @hide This is not available to third party applications due to 3668 * it allowing them to break other applications by stopping their 3669 * services, removing their alarms, etc. 3670 */ 3671 public void forceStopPackageAsUser(String packageName, int userId) { 3672 try { 3673 getService().forceStopPackage(packageName, userId); 3674 } catch (RemoteException e) { 3675 throw e.rethrowFromSystemServer(); 3676 } 3677 } 3678 3679 /** 3680 * @see #forceStopPackageAsUser(String, int) 3681 * @hide 3682 */ 3683 @SystemApi 3684 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3685 public void forceStopPackage(String packageName) { 3686 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3687 } 3688 3689 /** 3690 * Get the device configuration attributes. 3691 */ 3692 public ConfigurationInfo getDeviceConfigurationInfo() { 3693 try { 3694 return getService().getDeviceConfigurationInfo(); 3695 } catch (RemoteException e) { 3696 throw e.rethrowFromSystemServer(); 3697 } 3698 } 3699 3700 /** 3701 * Get the preferred density of icons for the launcher. This is used when 3702 * custom drawables are created (e.g., for shortcuts). 3703 * 3704 * @return density in terms of DPI 3705 */ 3706 public int getLauncherLargeIconDensity() { 3707 final Resources res = mContext.getResources(); 3708 final int density = res.getDisplayMetrics().densityDpi; 3709 final int sw = res.getConfiguration().smallestScreenWidthDp; 3710 3711 if (sw < 600) { 3712 // Smaller than approx 7" tablets, use the regular icon size. 3713 return density; 3714 } 3715 3716 switch (density) { 3717 case DisplayMetrics.DENSITY_LOW: 3718 return DisplayMetrics.DENSITY_MEDIUM; 3719 case DisplayMetrics.DENSITY_MEDIUM: 3720 return DisplayMetrics.DENSITY_HIGH; 3721 case DisplayMetrics.DENSITY_TV: 3722 return DisplayMetrics.DENSITY_XHIGH; 3723 case DisplayMetrics.DENSITY_HIGH: 3724 return DisplayMetrics.DENSITY_XHIGH; 3725 case DisplayMetrics.DENSITY_XHIGH: 3726 return DisplayMetrics.DENSITY_XXHIGH; 3727 case DisplayMetrics.DENSITY_XXHIGH: 3728 return DisplayMetrics.DENSITY_XHIGH * 2; 3729 default: 3730 // The density is some abnormal value. Return some other 3731 // abnormal value that is a reasonable scaling of it. 3732 return (int)((density*1.5f)+.5f); 3733 } 3734 } 3735 3736 /** 3737 * Get the preferred launcher icon size. This is used when custom drawables 3738 * are created (e.g., for shortcuts). 3739 * 3740 * @return dimensions of square icons in terms of pixels 3741 */ 3742 public int getLauncherLargeIconSize() { 3743 return getLauncherLargeIconSizeInner(mContext); 3744 } 3745 3746 static int getLauncherLargeIconSizeInner(Context context) { 3747 final Resources res = context.getResources(); 3748 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3749 final int sw = res.getConfiguration().smallestScreenWidthDp; 3750 3751 if (sw < 600) { 3752 // Smaller than approx 7" tablets, use the regular icon size. 3753 return size; 3754 } 3755 3756 final int density = res.getDisplayMetrics().densityDpi; 3757 3758 switch (density) { 3759 case DisplayMetrics.DENSITY_LOW: 3760 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3761 case DisplayMetrics.DENSITY_MEDIUM: 3762 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3763 case DisplayMetrics.DENSITY_TV: 3764 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3765 case DisplayMetrics.DENSITY_HIGH: 3766 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3767 case DisplayMetrics.DENSITY_XHIGH: 3768 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3769 case DisplayMetrics.DENSITY_XXHIGH: 3770 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3771 default: 3772 // The density is some abnormal value. Return some other 3773 // abnormal value that is a reasonable scaling of it. 3774 return (int)((size*1.5f) + .5f); 3775 } 3776 } 3777 3778 /** 3779 * Returns "true" if the user interface is currently being messed with 3780 * by a monkey. 3781 */ 3782 public static boolean isUserAMonkey() { 3783 try { 3784 return getService().isUserAMonkey(); 3785 } catch (RemoteException e) { 3786 throw e.rethrowFromSystemServer(); 3787 } 3788 } 3789 3790 /** 3791 * Returns "true" if device is running in a test harness. 3792 */ 3793 public static boolean isRunningInTestHarness() { 3794 return SystemProperties.getBoolean("ro.test_harness", false); 3795 } 3796 3797 /** 3798 * Returns the launch count of each installed package. 3799 * 3800 * @hide 3801 */ 3802 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3803 try { 3804 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3805 ServiceManager.getService("usagestats")); 3806 if (usageStatsService == null) { 3807 return new HashMap<String, Integer>(); 3808 } 3809 3810 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3811 ActivityThread.currentPackageName()); 3812 if (allPkgUsageStats == null) { 3813 return new HashMap<String, Integer>(); 3814 } 3815 3816 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3817 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3818 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3819 } 3820 3821 return launchCounts; 3822 } catch (RemoteException e) { 3823 Log.w(TAG, "Could not query launch counts", e); 3824 return new HashMap<String, Integer>(); 3825 } 3826 }*/ 3827 3828 /** @hide */ 3829 public static int checkComponentPermission(String permission, int uid, 3830 int owningUid, boolean exported) { 3831 // Root, system server get to do everything. 3832 final int appId = UserHandle.getAppId(uid); 3833 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3834 return PackageManager.PERMISSION_GRANTED; 3835 } 3836 // Isolated processes don't get any permissions. 3837 if (UserHandle.isIsolated(uid)) { 3838 return PackageManager.PERMISSION_DENIED; 3839 } 3840 // If there is a uid that owns whatever is being accessed, it has 3841 // blanket access to it regardless of the permissions it requires. 3842 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3843 return PackageManager.PERMISSION_GRANTED; 3844 } 3845 // If the target is not exported, then nobody else can get to it. 3846 if (!exported) { 3847 /* 3848 RuntimeException here = new RuntimeException("here"); 3849 here.fillInStackTrace(); 3850 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3851 here); 3852 */ 3853 return PackageManager.PERMISSION_DENIED; 3854 } 3855 if (permission == null) { 3856 return PackageManager.PERMISSION_GRANTED; 3857 } 3858 try { 3859 return AppGlobals.getPackageManager() 3860 .checkUidPermission(permission, uid); 3861 } catch (RemoteException e) { 3862 throw e.rethrowFromSystemServer(); 3863 } 3864 } 3865 3866 /** @hide */ 3867 public static int checkUidPermission(String permission, int uid) { 3868 try { 3869 return AppGlobals.getPackageManager() 3870 .checkUidPermission(permission, uid); 3871 } catch (RemoteException e) { 3872 throw e.rethrowFromSystemServer(); 3873 } 3874 } 3875 3876 /** 3877 * @hide 3878 * Helper for dealing with incoming user arguments to system service calls. 3879 * Takes care of checking permissions and converting USER_CURRENT to the 3880 * actual current user. 3881 * 3882 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3883 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3884 * @param userId The user id argument supplied by the caller -- this is the user 3885 * they want to run as. 3886 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3887 * to get a USER_ALL returned and deal with it correctly. If false, 3888 * an exception will be thrown if USER_ALL is supplied. 3889 * @param requireFull If true, the caller must hold 3890 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3891 * different user than their current process; otherwise they must hold 3892 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3893 * @param name Optional textual name of the incoming call; only for generating error messages. 3894 * @param callerPackage Optional package name of caller; only for error messages. 3895 * 3896 * @return Returns the user ID that the call should run as. Will always be a concrete 3897 * user number, unless <var>allowAll</var> is true in which case it could also be 3898 * USER_ALL. 3899 */ 3900 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3901 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3902 if (UserHandle.getUserId(callingUid) == userId) { 3903 return userId; 3904 } 3905 try { 3906 return getService().handleIncomingUser(callingPid, 3907 callingUid, userId, allowAll, requireFull, name, callerPackage); 3908 } catch (RemoteException e) { 3909 throw e.rethrowFromSystemServer(); 3910 } 3911 } 3912 3913 /** 3914 * Gets the userId of the current foreground user. Requires system permissions. 3915 * @hide 3916 */ 3917 @SystemApi 3918 public static int getCurrentUser() { 3919 UserInfo ui; 3920 try { 3921 ui = getService().getCurrentUser(); 3922 return ui != null ? ui.id : 0; 3923 } catch (RemoteException e) { 3924 throw e.rethrowFromSystemServer(); 3925 } 3926 } 3927 3928 /** 3929 * @param userid the user's id. Zero indicates the default user. 3930 * @hide 3931 */ 3932 public boolean switchUser(int userid) { 3933 try { 3934 return getService().switchUser(userid); 3935 } catch (RemoteException e) { 3936 throw e.rethrowFromSystemServer(); 3937 } 3938 } 3939 3940 /** 3941 * Logs out current current foreground user by switching to the system user and stopping the 3942 * user being switched from. 3943 * @hide 3944 */ 3945 public static void logoutCurrentUser() { 3946 int currentUser = ActivityManager.getCurrentUser(); 3947 if (currentUser != UserHandle.USER_SYSTEM) { 3948 try { 3949 getService().switchUser(UserHandle.USER_SYSTEM); 3950 getService().stopUser(currentUser, /* force= */ false, null); 3951 } catch (RemoteException e) { 3952 e.rethrowFromSystemServer(); 3953 } 3954 } 3955 } 3956 3957 /** {@hide} */ 3958 public static final int FLAG_OR_STOPPED = 1 << 0; 3959 /** {@hide} */ 3960 public static final int FLAG_AND_LOCKED = 1 << 1; 3961 /** {@hide} */ 3962 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3963 /** {@hide} */ 3964 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3965 3966 /** 3967 * Return whether the given user is actively running. This means that 3968 * the user is in the "started" state, not "stopped" -- it is currently 3969 * allowed to run code through scheduled alarms, receiving broadcasts, 3970 * etc. A started user may be either the current foreground user or a 3971 * background user; the result here does not distinguish between the two. 3972 * @param userId the user's id. Zero indicates the default user. 3973 * @hide 3974 */ 3975 public boolean isUserRunning(int userId) { 3976 try { 3977 return getService().isUserRunning(userId, 0); 3978 } catch (RemoteException e) { 3979 throw e.rethrowFromSystemServer(); 3980 } 3981 } 3982 3983 /** {@hide} */ 3984 public boolean isVrModePackageEnabled(ComponentName component) { 3985 try { 3986 return getService().isVrModePackageEnabled(component); 3987 } catch (RemoteException e) { 3988 throw e.rethrowFromSystemServer(); 3989 } 3990 } 3991 3992 /** 3993 * Perform a system dump of various state associated with the given application 3994 * package name. This call blocks while the dump is being performed, so should 3995 * not be done on a UI thread. The data will be written to the given file 3996 * descriptor as text. An application must hold the 3997 * {@link android.Manifest.permission#DUMP} permission to make this call. 3998 * @param fd The file descriptor that the dump should be written to. The file 3999 * descriptor is <em>not</em> closed by this function; the caller continues to 4000 * own it. 4001 * @param packageName The name of the package that is to be dumped. 4002 */ 4003 public void dumpPackageState(FileDescriptor fd, String packageName) { 4004 dumpPackageStateStatic(fd, packageName); 4005 } 4006 4007 /** 4008 * @hide 4009 */ 4010 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4011 FileOutputStream fout = new FileOutputStream(fd); 4012 PrintWriter pw = new FastPrintWriter(fout); 4013 dumpService(pw, fd, "package", new String[] { packageName }); 4014 pw.println(); 4015 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4016 "-a", "package", packageName }); 4017 pw.println(); 4018 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4019 pw.println(); 4020 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4021 pw.println(); 4022 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4023 pw.println(); 4024 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4025 pw.flush(); 4026 } 4027 4028 /** 4029 * @hide 4030 */ 4031 public static boolean isSystemReady() { 4032 if (!sSystemReady) { 4033 if (ActivityThread.isSystem()) { 4034 sSystemReady = 4035 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4036 } else { 4037 // Since this is being called from outside system server, system should be 4038 // ready by now. 4039 sSystemReady = true; 4040 } 4041 } 4042 return sSystemReady; 4043 } 4044 4045 /** 4046 * @hide 4047 */ 4048 public static void broadcastStickyIntent(Intent intent, int userId) { 4049 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4050 } 4051 4052 /** 4053 * Convenience for sending a sticky broadcast. For internal use only. 4054 * 4055 * @hide 4056 */ 4057 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4058 try { 4059 getService().broadcastIntent( 4060 null, intent, null, null, Activity.RESULT_OK, null, null, 4061 null /*permission*/, appOp, null, false, true, userId); 4062 } catch (RemoteException ex) { 4063 } 4064 } 4065 4066 /** 4067 * @hide 4068 */ 4069 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4070 String tag) { 4071 try { 4072 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4073 sourceUid, sourcePkg, tag); 4074 } catch (RemoteException ex) { 4075 } 4076 } 4077 4078 /** 4079 * @hide 4080 */ 4081 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4082 try { 4083 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4084 } catch (RemoteException ex) { 4085 } 4086 } 4087 4088 /** 4089 * @hide 4090 */ 4091 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4092 try { 4093 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4094 } catch (RemoteException ex) { 4095 } 4096 } 4097 4098 /** 4099 * @hide 4100 */ 4101 public static IActivityManager getService() { 4102 return IActivityManagerSingleton.get(); 4103 } 4104 4105 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4106 new Singleton<IActivityManager>() { 4107 @Override 4108 protected IActivityManager create() { 4109 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4110 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4111 return am; 4112 } 4113 }; 4114 4115 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4116 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4117 IBinder service = ServiceManager.checkService(name); 4118 if (service == null) { 4119 pw.println(" (Service not found)"); 4120 return; 4121 } 4122 TransferPipe tp = null; 4123 try { 4124 pw.flush(); 4125 tp = new TransferPipe(); 4126 tp.setBufferPrefix(" "); 4127 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4128 tp.go(fd, 10000); 4129 } catch (Throwable e) { 4130 if (tp != null) { 4131 tp.kill(); 4132 } 4133 pw.println("Failure dumping service:"); 4134 e.printStackTrace(pw); 4135 } 4136 } 4137 4138 /** 4139 * Request that the system start watching for the calling process to exceed a pss 4140 * size as given here. Once called, the system will look for any occasions where it 4141 * sees the associated process with a larger pss size and, when this happens, automatically 4142 * pull a heap dump from it and allow the user to share the data. Note that this request 4143 * continues running even if the process is killed and restarted. To remove the watch, 4144 * use {@link #clearWatchHeapLimit()}. 4145 * 4146 * <p>This API only work if the calling process has been marked as 4147 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4148 * (userdebug or eng) build.</p> 4149 * 4150 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4151 * handle heap limit reports themselves.</p> 4152 * 4153 * @param pssSize The size in bytes to set the limit at. 4154 */ 4155 public void setWatchHeapLimit(long pssSize) { 4156 try { 4157 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4158 mContext.getPackageName()); 4159 } catch (RemoteException e) { 4160 throw e.rethrowFromSystemServer(); 4161 } 4162 } 4163 4164 /** 4165 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4166 * If your package has an activity handling this action, it will be launched with the 4167 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4168 * match the activty must support this action and a MIME type of "*/*". 4169 */ 4170 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4171 4172 /** 4173 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4174 */ 4175 public void clearWatchHeapLimit() { 4176 try { 4177 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4178 } catch (RemoteException e) { 4179 throw e.rethrowFromSystemServer(); 4180 } 4181 } 4182 4183 /** 4184 * @hide 4185 */ 4186 public void startLockTaskMode(int taskId) { 4187 try { 4188 getService().startLockTaskModeById(taskId); 4189 } catch (RemoteException e) { 4190 throw e.rethrowFromSystemServer(); 4191 } 4192 } 4193 4194 /** 4195 * @hide 4196 */ 4197 public void stopLockTaskMode() { 4198 try { 4199 getService().stopLockTaskMode(); 4200 } catch (RemoteException e) { 4201 throw e.rethrowFromSystemServer(); 4202 } 4203 } 4204 4205 /** 4206 * Return whether currently in lock task mode. When in this mode 4207 * no new tasks can be created or switched to. 4208 * 4209 * @see Activity#startLockTask() 4210 * 4211 * @deprecated Use {@link #getLockTaskModeState} instead. 4212 */ 4213 @Deprecated 4214 public boolean isInLockTaskMode() { 4215 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4216 } 4217 4218 /** 4219 * Return the current state of task locking. The three possible outcomes 4220 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4221 * and {@link #LOCK_TASK_MODE_PINNED}. 4222 * 4223 * @see Activity#startLockTask() 4224 */ 4225 public int getLockTaskModeState() { 4226 try { 4227 return getService().getLockTaskModeState(); 4228 } catch (RemoteException e) { 4229 throw e.rethrowFromSystemServer(); 4230 } 4231 } 4232 4233 /** 4234 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4235 * thread can be a VR thread in a process at a time, and that thread may be subject to 4236 * restrictions on the amount of time it can run. 4237 * 4238 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4239 * method will return to normal operation, and calling this method will do nothing while 4240 * persistent VR mode is enabled. 4241 * 4242 * To reset the VR thread for an application, a tid of 0 can be passed. 4243 * 4244 * @see android.os.Process#myTid() 4245 * @param tid tid of the VR thread 4246 */ 4247 public static void setVrThread(int tid) { 4248 try { 4249 getService().setVrThread(tid); 4250 } catch (RemoteException e) { 4251 // pass 4252 } 4253 } 4254 4255 /** 4256 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4257 * beyond a single process. It requires holding the 4258 * {@link android.Manifest.permission#RESTRICTED_VR_ACCESS} permission. Only one thread can be a 4259 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4260 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4261 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4262 * persistent VR thread loses its new scheduling priority; this method must be called again to 4263 * set the persistent thread. 4264 * 4265 * To reset the persistent VR thread, a tid of 0 can be passed. 4266 * 4267 * @see android.os.Process#myTid() 4268 * @param tid tid of the VR thread 4269 * @hide 4270 */ 4271 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4272 public static void setPersistentVrThread(int tid) { 4273 try { 4274 getService().setPersistentVrThread(tid); 4275 } catch (RemoteException e) { 4276 // pass 4277 } 4278 } 4279 4280 /** 4281 * The AppTask allows you to manage your own application's tasks. 4282 * See {@link android.app.ActivityManager#getAppTasks()} 4283 */ 4284 public static class AppTask { 4285 private IAppTask mAppTaskImpl; 4286 4287 /** @hide */ 4288 public AppTask(IAppTask task) { 4289 mAppTaskImpl = task; 4290 } 4291 4292 /** 4293 * Finishes all activities in this task and removes it from the recent tasks list. 4294 */ 4295 public void finishAndRemoveTask() { 4296 try { 4297 mAppTaskImpl.finishAndRemoveTask(); 4298 } catch (RemoteException e) { 4299 throw e.rethrowFromSystemServer(); 4300 } 4301 } 4302 4303 /** 4304 * Get the RecentTaskInfo associated with this task. 4305 * 4306 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4307 */ 4308 public RecentTaskInfo getTaskInfo() { 4309 try { 4310 return mAppTaskImpl.getTaskInfo(); 4311 } catch (RemoteException e) { 4312 throw e.rethrowFromSystemServer(); 4313 } 4314 } 4315 4316 /** 4317 * Bring this task to the foreground. If it contains activities, they will be 4318 * brought to the foreground with it and their instances re-created if needed. 4319 * If it doesn't contain activities, the root activity of the task will be 4320 * re-launched. 4321 */ 4322 public void moveToFront() { 4323 try { 4324 mAppTaskImpl.moveToFront(); 4325 } catch (RemoteException e) { 4326 throw e.rethrowFromSystemServer(); 4327 } 4328 } 4329 4330 /** 4331 * Start an activity in this task. Brings the task to the foreground. If this task 4332 * is not currently active (that is, its id < 0), then a new activity for the given 4333 * Intent will be launched as the root of the task and the task brought to the 4334 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4335 * an activity to launch in a new task, then a new activity for the given Intent will 4336 * be launched on top of the task and the task brought to the foreground. If this 4337 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4338 * or would otherwise be launched in to a new task, then the activity not launched but 4339 * this task be brought to the foreground and a new intent delivered to the top 4340 * activity if appropriate. 4341 * 4342 * <p>In other words, you generally want to use an Intent here that does not specify 4343 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4344 * and let the system do the right thing.</p> 4345 * 4346 * @param intent The Intent describing the new activity to be launched on the task. 4347 * @param options Optional launch options. 4348 * 4349 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4350 */ 4351 public void startActivity(Context context, Intent intent, Bundle options) { 4352 ActivityThread thread = ActivityThread.currentActivityThread(); 4353 thread.getInstrumentation().execStartActivityFromAppTask(context, 4354 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4355 } 4356 4357 /** 4358 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4359 * Intent of this AppTask. 4360 * 4361 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4362 * be set; otherwise, it will be cleared. 4363 */ 4364 public void setExcludeFromRecents(boolean exclude) { 4365 try { 4366 mAppTaskImpl.setExcludeFromRecents(exclude); 4367 } catch (RemoteException e) { 4368 throw e.rethrowFromSystemServer(); 4369 } 4370 } 4371 } 4372} 4373