ActivityManager.java revision a29eb98d9fba99528f0809c448daf2ddae37de7e
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.Matrix; 30import android.graphics.Point; 31import android.os.BatteryStats; 32import android.os.IBinder; 33import android.os.ParcelFileDescriptor; 34 35import com.android.internal.app.procstats.ProcessStats; 36import com.android.internal.os.RoSystemProperties; 37import com.android.internal.os.TransferPipe; 38import com.android.internal.util.FastPrintWriter; 39import com.android.server.LocalServices; 40 41import android.content.ComponentName; 42import android.content.Context; 43import android.content.Intent; 44import android.content.UriPermission; 45import android.content.pm.ApplicationInfo; 46import android.content.pm.ConfigurationInfo; 47import android.content.pm.IPackageDataObserver; 48import android.content.pm.PackageManager; 49import android.content.pm.ParceledListSlice; 50import android.content.pm.UserInfo; 51import android.content.res.Resources; 52import android.graphics.Bitmap; 53import android.graphics.Color; 54import android.graphics.Rect; 55import android.os.Bundle; 56import android.os.Debug; 57import android.os.Handler; 58import android.os.Parcel; 59import android.os.Parcelable; 60import android.os.Process; 61import android.os.RemoteException; 62import android.os.ServiceManager; 63import android.os.SystemProperties; 64import android.os.UserHandle; 65import android.text.TextUtils; 66import android.util.ArrayMap; 67import android.util.DisplayMetrics; 68import android.util.Singleton; 69import android.util.Size; 70 71import org.xmlpull.v1.XmlSerializer; 72 73import java.io.FileDescriptor; 74import java.io.FileOutputStream; 75import java.io.IOException; 76import java.io.PrintWriter; 77import java.lang.annotation.Retention; 78import java.lang.annotation.RetentionPolicy; 79import java.util.ArrayList; 80import java.util.List; 81 82/** 83 * Interact with the overall activities running in the system. 84 */ 85public class ActivityManager { 86 private static String TAG = "ActivityManager"; 87 88 private static int gMaxRecentTasks = -1; 89 90 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 91 92 private final Context mContext; 93 94 private static volatile boolean sSystemReady = false; 95 96 static final class UidObserver extends IUidObserver.Stub { 97 final OnUidImportanceListener mListener; 98 99 UidObserver(OnUidImportanceListener listener) { 100 mListener = listener; 101 } 102 103 @Override 104 public void onUidStateChanged(int uid, int procState) { 105 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 106 } 107 108 @Override 109 public void onUidGone(int uid, boolean disabled) { 110 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 111 } 112 113 @Override 114 public void onUidActive(int uid) { 115 } 116 117 @Override 118 public void onUidIdle(int uid, boolean disabled) { 119 } 120 } 121 122 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 123 124 /** 125 * Defines acceptable types of bugreports. 126 * @hide 127 */ 128 @Retention(RetentionPolicy.SOURCE) 129 @IntDef({ 130 BUGREPORT_OPTION_FULL, 131 BUGREPORT_OPTION_INTERACTIVE, 132 BUGREPORT_OPTION_REMOTE, 133 BUGREPORT_OPTION_WEAR 134 }) 135 public @interface BugreportMode {} 136 /** 137 * Takes a bugreport without user interference (and hence causing less 138 * interference to the system), but includes all sections. 139 * @hide 140 */ 141 public static final int BUGREPORT_OPTION_FULL = 0; 142 /** 143 * Allows user to monitor progress and enter additional data; might not include all 144 * sections. 145 * @hide 146 */ 147 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 148 /** 149 * Takes a bugreport requested remotely by administrator of the Device Owner app, 150 * not the device's user. 151 * @hide 152 */ 153 public static final int BUGREPORT_OPTION_REMOTE = 2; 154 /** 155 * Takes a bugreport on a wearable device. 156 * @hide 157 */ 158 public static final int BUGREPORT_OPTION_WEAR = 3; 159 160 /** 161 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 162 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 163 * uninstalled in lieu of the declaring one. The package named here must be 164 * signed with the same certificate as the one declaring the {@code <meta-data>}. 165 */ 166 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 167 168 /** 169 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 170 * @hide 171 */ 172 public static final int START_VOICE_HIDDEN_SESSION = -10; 173 174 /** 175 * Result for IActivityManager.startVoiceActivity: active session does not match 176 * the requesting token. 177 * @hide 178 */ 179 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 180 181 /** 182 * Result for IActivityManager.startActivity: trying to start a background user 183 * activity that shouldn't be displayed for all users. 184 * @hide 185 */ 186 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 187 188 /** 189 * Result for IActivityManager.startActivity: trying to start an activity under voice 190 * control when that activity does not support the VOICE category. 191 * @hide 192 */ 193 public static final int START_NOT_VOICE_COMPATIBLE = -7; 194 195 /** 196 * Result for IActivityManager.startActivity: an error where the 197 * start had to be canceled. 198 * @hide 199 */ 200 public static final int START_CANCELED = -6; 201 202 /** 203 * Result for IActivityManager.startActivity: an error where the 204 * thing being started is not an activity. 205 * @hide 206 */ 207 public static final int START_NOT_ACTIVITY = -5; 208 209 /** 210 * Result for IActivityManager.startActivity: an error where the 211 * caller does not have permission to start the activity. 212 * @hide 213 */ 214 public static final int START_PERMISSION_DENIED = -4; 215 216 /** 217 * Result for IActivityManager.startActivity: an error where the 218 * caller has requested both to forward a result and to receive 219 * a result. 220 * @hide 221 */ 222 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 223 224 /** 225 * Result for IActivityManager.startActivity: an error where the 226 * requested class is not found. 227 * @hide 228 */ 229 public static final int START_CLASS_NOT_FOUND = -2; 230 231 /** 232 * Result for IActivityManager.startActivity: an error where the 233 * given Intent could not be resolved to an activity. 234 * @hide 235 */ 236 public static final int START_INTENT_NOT_RESOLVED = -1; 237 238 /** 239 * Result for IActivityManaqer.startActivity: the activity was started 240 * successfully as normal. 241 * @hide 242 */ 243 public static final int START_SUCCESS = 0; 244 245 /** 246 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 247 * be executed if it is the recipient, and that is indeed the case. 248 * @hide 249 */ 250 public static final int START_RETURN_INTENT_TO_CALLER = 1; 251 252 /** 253 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 254 * a task was simply brought to the foreground. 255 * @hide 256 */ 257 public static final int START_TASK_TO_FRONT = 2; 258 259 /** 260 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 261 * the given Intent was given to the existing top activity. 262 * @hide 263 */ 264 public static final int START_DELIVERED_TO_TOP = 3; 265 266 /** 267 * Result for IActivityManaqer.startActivity: request was canceled because 268 * app switches are temporarily canceled to ensure the user's last request 269 * (such as pressing home) is performed. 270 * @hide 271 */ 272 public static final int START_SWITCHES_CANCELED = 4; 273 274 /** 275 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 276 * while in Lock Task Mode. 277 * @hide 278 */ 279 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 280 281 /** 282 * Flag for IActivityManaqer.startActivity: do special start mode where 283 * a new activity is launched only if it is needed. 284 * @hide 285 */ 286 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 287 288 /** 289 * Flag for IActivityManaqer.startActivity: launch the app for 290 * debugging. 291 * @hide 292 */ 293 public static final int START_FLAG_DEBUG = 1<<1; 294 295 /** 296 * Flag for IActivityManaqer.startActivity: launch the app for 297 * allocation tracking. 298 * @hide 299 */ 300 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 301 302 /** 303 * Flag for IActivityManaqer.startActivity: launch the app with 304 * native debugging support. 305 * @hide 306 */ 307 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 308 309 /** 310 * Result for IActivityManaqer.broadcastIntent: success! 311 * @hide 312 */ 313 public static final int BROADCAST_SUCCESS = 0; 314 315 /** 316 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 317 * a sticky intent without appropriate permission. 318 * @hide 319 */ 320 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 321 322 /** 323 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 324 * to a stopped user. Fail. 325 * @hide 326 */ 327 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 328 329 /** 330 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 331 * for a sendBroadcast operation. 332 * @hide 333 */ 334 public static final int INTENT_SENDER_BROADCAST = 1; 335 336 /** 337 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 338 * for a startActivity operation. 339 * @hide 340 */ 341 public static final int INTENT_SENDER_ACTIVITY = 2; 342 343 /** 344 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 345 * for an activity result operation. 346 * @hide 347 */ 348 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 349 350 /** 351 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 352 * for a startService operation. 353 * @hide 354 */ 355 public static final int INTENT_SENDER_SERVICE = 4; 356 357 /** @hide User operation call: success! */ 358 public static final int USER_OP_SUCCESS = 0; 359 360 /** @hide User operation call: given user id is not known. */ 361 public static final int USER_OP_UNKNOWN_USER = -1; 362 363 /** @hide User operation call: given user id is the current user, can't be stopped. */ 364 public static final int USER_OP_IS_CURRENT = -2; 365 366 /** @hide User operation call: system user can't be stopped. */ 367 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 368 369 /** @hide User operation call: one of related users cannot be stopped. */ 370 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 371 372 /** @hide Not a real process state. */ 373 public static final int PROCESS_STATE_UNKNOWN = -1; 374 375 /** @hide Process is a persistent system process. */ 376 public static final int PROCESS_STATE_PERSISTENT = 0; 377 378 /** @hide Process is a persistent system process and is doing UI. */ 379 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 380 381 /** @hide Process is hosting the current top activities. Note that this covers 382 * all activities that are visible to the user. */ 383 public static final int PROCESS_STATE_TOP = 2; 384 385 /** @hide Process is hosting a foreground service due to a system binding. */ 386 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 387 388 /** @hide Process is hosting a foreground service. */ 389 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 390 391 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 392 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 393 394 /** @hide Process is important to the user, and something they are aware of. */ 395 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 396 397 /** @hide Process is important to the user, but not something they are aware of. */ 398 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 399 400 /** @hide Process is in the background running a backup/restore operation. */ 401 public static final int PROCESS_STATE_BACKUP = 8; 402 403 /** @hide Process is in the background, but it can't restore its state so we want 404 * to try to avoid killing it. */ 405 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 406 407 /** @hide Process is in the background running a service. Unlike oom_adj, this level 408 * is used for both the normal running in background state and the executing 409 * operations state. */ 410 public static final int PROCESS_STATE_SERVICE = 10; 411 412 /** @hide Process is in the background running a receiver. Note that from the 413 * perspective of oom_adj receivers run at a higher foreground level, but for our 414 * prioritization here that is not necessary and putting them below services means 415 * many fewer changes in some process states as they receive broadcasts. */ 416 public static final int PROCESS_STATE_RECEIVER = 11; 417 418 /** @hide Process is in the background but hosts the home activity. */ 419 public static final int PROCESS_STATE_HOME = 12; 420 421 /** @hide Process is in the background but hosts the last shown activity. */ 422 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 423 424 /** @hide Process is being cached for later use and contains activities. */ 425 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 426 427 /** @hide Process is being cached for later use and is a client of another cached 428 * process that contains activities. */ 429 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 430 431 /** @hide Process is being cached for later use and is empty. */ 432 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 433 434 /** @hide Process does not exist. */ 435 public static final int PROCESS_STATE_NONEXISTENT = 17; 436 437 /** @hide The lowest process state number */ 438 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 439 440 /** @hide The highest process state number */ 441 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 442 443 /** @hide Should this process state be considered a background state? */ 444 public static final boolean isProcStateBackground(int procState) { 445 return procState >= PROCESS_STATE_BACKUP; 446 } 447 448 /** @hide requestType for assist context: only basic information. */ 449 public static final int ASSIST_CONTEXT_BASIC = 0; 450 451 /** @hide requestType for assist context: generate full AssistStructure. */ 452 public static final int ASSIST_CONTEXT_FULL = 1; 453 454 /** @hide Flag for registerUidObserver: report changes in process state. */ 455 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 456 457 /** @hide Flag for registerUidObserver: report uid gone. */ 458 public static final int UID_OBSERVER_GONE = 1<<1; 459 460 /** @hide Flag for registerUidObserver: report uid has become idle. */ 461 public static final int UID_OBSERVER_IDLE = 1<<2; 462 463 /** @hide Flag for registerUidObserver: report uid has become active. */ 464 public static final int UID_OBSERVER_ACTIVE = 1<<3; 465 466 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 467 public static final int APP_START_MODE_NORMAL = 0; 468 469 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 470 public static final int APP_START_MODE_DELAYED = 1; 471 472 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 473 * launches. */ 474 public static final int APP_START_MODE_DISABLED = 2; 475 476 /** 477 * Lock task mode is not active. 478 */ 479 public static final int LOCK_TASK_MODE_NONE = 0; 480 481 /** 482 * Full lock task mode is active. 483 */ 484 public static final int LOCK_TASK_MODE_LOCKED = 1; 485 486 /** 487 * App pinning mode is active. 488 */ 489 public static final int LOCK_TASK_MODE_PINNED = 2; 490 491 Point mAppTaskThumbnailSize; 492 493 /*package*/ ActivityManager(Context context, Handler handler) { 494 mContext = context; 495 } 496 497 /** 498 * Screen compatibility mode: the application most always run in 499 * compatibility mode. 500 * @hide 501 */ 502 public static final int COMPAT_MODE_ALWAYS = -1; 503 504 /** 505 * Screen compatibility mode: the application can never run in 506 * compatibility mode. 507 * @hide 508 */ 509 public static final int COMPAT_MODE_NEVER = -2; 510 511 /** 512 * Screen compatibility mode: unknown. 513 * @hide 514 */ 515 public static final int COMPAT_MODE_UNKNOWN = -3; 516 517 /** 518 * Screen compatibility mode: the application currently has compatibility 519 * mode disabled. 520 * @hide 521 */ 522 public static final int COMPAT_MODE_DISABLED = 0; 523 524 /** 525 * Screen compatibility mode: the application currently has compatibility 526 * mode enabled. 527 * @hide 528 */ 529 public static final int COMPAT_MODE_ENABLED = 1; 530 531 /** 532 * Screen compatibility mode: request to toggle the application's 533 * compatibility mode. 534 * @hide 535 */ 536 public static final int COMPAT_MODE_TOGGLE = 2; 537 538 /** @hide */ 539 public static class StackId { 540 /** Invalid stack ID. */ 541 public static final int INVALID_STACK_ID = -1; 542 543 /** First static stack ID. */ 544 public static final int FIRST_STATIC_STACK_ID = 0; 545 546 /** Home activity stack ID. */ 547 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 548 549 /** ID of stack where fullscreen activities are normally launched into. */ 550 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 551 552 /** ID of stack where freeform/resized activities are normally launched into. */ 553 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 554 555 /** ID of stack that occupies a dedicated region of the screen. */ 556 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 557 558 /** ID of stack that always on top (always visible) when it exist. */ 559 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 560 561 /** Recents activity stack ID. */ 562 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 563 564 /** Last static stack stack ID. */ 565 public static final int LAST_STATIC_STACK_ID = RECENTS_STACK_ID; 566 567 /** Start of ID range used by stacks that are created dynamically. */ 568 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 569 570 public static boolean isStaticStack(int stackId) { 571 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 572 } 573 574 /** 575 * Returns true if the activities contained in the input stack display a shadow around 576 * their border. 577 */ 578 public static boolean hasWindowShadow(int stackId) { 579 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 580 } 581 582 /** 583 * Returns true if the activities contained in the input stack display a decor view. 584 */ 585 public static boolean hasWindowDecor(int stackId) { 586 return stackId == FREEFORM_WORKSPACE_STACK_ID; 587 } 588 589 /** 590 * Returns true if the tasks contained in the stack can be resized independently of the 591 * stack. 592 */ 593 public static boolean isTaskResizeAllowed(int stackId) { 594 return stackId == FREEFORM_WORKSPACE_STACK_ID; 595 } 596 597 /** Returns true if the task bounds should persist across power cycles. */ 598 public static boolean persistTaskBounds(int stackId) { 599 return stackId == FREEFORM_WORKSPACE_STACK_ID; 600 } 601 602 /** 603 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 604 */ 605 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 606 return stackId == PINNED_STACK_ID; 607 } 608 609 /** 610 * Returns true if we try to maintain focus in the current stack when the top activity 611 * finishes. 612 */ 613 public static boolean keepFocusInStackIfPossible(int stackId) { 614 return stackId == FREEFORM_WORKSPACE_STACK_ID 615 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 616 } 617 618 /** 619 * Returns true if Stack size is affected by the docked stack changing size. 620 */ 621 public static boolean isResizeableByDockedStack(int stackId) { 622 return isStaticStack(stackId) && 623 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 624 } 625 626 /** 627 * Returns true if the size of tasks in the input stack are affected by the docked stack 628 * changing size. 629 */ 630 public static boolean isTaskResizeableByDockedStack(int stackId) { 631 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 632 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 633 } 634 635 /** 636 * Returns true if the windows of tasks being moved to the target stack from the source 637 * stack should be replaced, meaning that window manager will keep the old window around 638 * until the new is ready. 639 */ 640 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 641 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 642 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 643 } 644 645 /** 646 * Return whether a stackId is a stack containing floating windows. Floating windows 647 * are laid out differently as they are allowed to extend past the display bounds 648 * without overscan insets. 649 */ 650 public static boolean tasksAreFloating(int stackId) { 651 return stackId == FREEFORM_WORKSPACE_STACK_ID 652 || stackId == PINNED_STACK_ID; 653 } 654 655 /** 656 * Returns true if animation specs should be constructed for app transition that moves 657 * the task to the specified stack. 658 */ 659 public static boolean useAnimationSpecForAppTransition(int stackId) { 660 661 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 662 // reboots. 663 return stackId == FREEFORM_WORKSPACE_STACK_ID 664 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 665 || stackId == INVALID_STACK_ID; 666 } 667 668 /** Returns true if the windows in the stack can receive input keys. */ 669 public static boolean canReceiveKeys(int stackId) { 670 return stackId != PINNED_STACK_ID; 671 } 672 673 /** 674 * Returns true if the stack can be visible above lockscreen. 675 */ 676 public static boolean isAllowedOverLockscreen(int stackId) { 677 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 678 } 679 680 public static boolean isAlwaysOnTop(int stackId) { 681 return stackId == PINNED_STACK_ID; 682 } 683 684 /** 685 * Returns true if the top task in the task is allowed to return home when finished and 686 * there are other tasks in the stack. 687 */ 688 public static boolean allowTopTaskToReturnHome(int stackId) { 689 return stackId != PINNED_STACK_ID; 690 } 691 692 /** 693 * Returns true if the stack should be resized to match the bounds specified by 694 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 695 */ 696 public static boolean resizeStackWithLaunchBounds(int stackId) { 697 return stackId == PINNED_STACK_ID; 698 } 699 700 /** 701 * Returns true if any visible windows belonging to apps in this stack should be kept on 702 * screen when the app is killed due to something like the low memory killer. 703 */ 704 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 705 return stackId != PINNED_STACK_ID; 706 } 707 708 /** 709 * Returns true if the backdrop on the client side should match the frame of the window. 710 * Returns false, if the backdrop should be fullscreen. 711 */ 712 public static boolean useWindowFrameForBackdrop(int stackId) { 713 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 714 } 715 716 /** 717 * Returns true if a window from the specified stack with {@param stackId} are normally 718 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 719 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 720 * etc. 721 */ 722 public static boolean normallyFullscreenWindows(int stackId) { 723 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 724 && stackId != DOCKED_STACK_ID; 725 } 726 727 /** 728 * Returns true if the input stack id should only be present on a device that supports 729 * multi-window mode. 730 * @see android.app.ActivityManager#supportsMultiWindow 731 */ 732 public static boolean isMultiWindowStack(int stackId) { 733 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 734 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 735 } 736 737 /** 738 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 739 */ 740 public static boolean isHomeOrRecentsStack(int stackId) { 741 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 742 } 743 744 /** 745 * Returns true if activities contained in this stack can request visible behind by 746 * calling {@link Activity#requestVisibleBehind}. 747 */ 748 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 749 return stackId == FULLSCREEN_WORKSPACE_STACK_ID; 750 } 751 752 /** 753 * Returns true if this stack may be scaled without resizing, 754 * and windows within may need to be configured as such. 755 */ 756 public static boolean windowsAreScaleable(int stackId) { 757 return stackId == PINNED_STACK_ID; 758 } 759 760 /** 761 * Returns true if windows in this stack should be given move animations 762 * by default. 763 */ 764 public static boolean hasMovementAnimations(int stackId) { 765 return stackId != PINNED_STACK_ID; 766 } 767 768 /** Returns true if the input stack and its content can affect the device orientation. */ 769 public static boolean canSpecifyOrientation(int stackId) { 770 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID 771 || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 772 } 773 } 774 775 /** 776 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 777 * specifies the position of the created docked stack at the top half of the screen if 778 * in portrait mode or at the left half of the screen if in landscape mode. 779 * @hide 780 */ 781 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 782 783 /** 784 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 785 * specifies the position of the created docked stack at the bottom half of the screen if 786 * in portrait mode or at the right half of the screen if in landscape mode. 787 * @hide 788 */ 789 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 790 791 /** 792 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 793 * that the resize doesn't need to preserve the window, and can be skipped if bounds 794 * is unchanged. This mode is used by window manager in most cases. 795 * @hide 796 */ 797 public static final int RESIZE_MODE_SYSTEM = 0; 798 799 /** 800 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 801 * that the resize should preserve the window if possible. 802 * @hide 803 */ 804 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 805 806 /** 807 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 808 * that the resize should be performed even if the bounds appears unchanged. 809 * @hide 810 */ 811 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 812 813 /** 814 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 815 * manager during a screen rotation. 816 * @hide 817 */ 818 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 819 820 /** 821 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 822 * resize is due to a drag action. 823 * @hide 824 */ 825 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 826 827 /** 828 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 829 * that the resize should preserve the window if possible, and should not be skipped 830 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 831 * is ending. 832 * @hide 833 */ 834 public static final int RESIZE_MODE_USER_FORCED = 835 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 836 837 /** @hide */ 838 public int getFrontActivityScreenCompatMode() { 839 try { 840 return getService().getFrontActivityScreenCompatMode(); 841 } catch (RemoteException e) { 842 throw e.rethrowFromSystemServer(); 843 } 844 } 845 846 /** @hide */ 847 public void setFrontActivityScreenCompatMode(int mode) { 848 try { 849 getService().setFrontActivityScreenCompatMode(mode); 850 } catch (RemoteException e) { 851 throw e.rethrowFromSystemServer(); 852 } 853 } 854 855 /** @hide */ 856 public int getPackageScreenCompatMode(String packageName) { 857 try { 858 return getService().getPackageScreenCompatMode(packageName); 859 } catch (RemoteException e) { 860 throw e.rethrowFromSystemServer(); 861 } 862 } 863 864 /** @hide */ 865 public void setPackageScreenCompatMode(String packageName, int mode) { 866 try { 867 getService().setPackageScreenCompatMode(packageName, mode); 868 } catch (RemoteException e) { 869 throw e.rethrowFromSystemServer(); 870 } 871 } 872 873 /** @hide */ 874 public boolean getPackageAskScreenCompat(String packageName) { 875 try { 876 return getService().getPackageAskScreenCompat(packageName); 877 } catch (RemoteException e) { 878 throw e.rethrowFromSystemServer(); 879 } 880 } 881 882 /** @hide */ 883 public void setPackageAskScreenCompat(String packageName, boolean ask) { 884 try { 885 getService().setPackageAskScreenCompat(packageName, ask); 886 } catch (RemoteException e) { 887 throw e.rethrowFromSystemServer(); 888 } 889 } 890 891 /** 892 * Return the approximate per-application memory class of the current 893 * device. This gives you an idea of how hard a memory limit you should 894 * impose on your application to let the overall system work best. The 895 * returned value is in megabytes; the baseline Android memory class is 896 * 16 (which happens to be the Java heap limit of those devices); some 897 * device with more memory may return 24 or even higher numbers. 898 */ 899 public int getMemoryClass() { 900 return staticGetMemoryClass(); 901 } 902 903 /** @hide */ 904 static public int staticGetMemoryClass() { 905 // Really brain dead right now -- just take this from the configured 906 // vm heap size, and assume it is in megabytes and thus ends with "m". 907 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 908 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 909 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 910 } 911 return staticGetLargeMemoryClass(); 912 } 913 914 /** 915 * Return the approximate per-application memory class of the current 916 * device when an application is running with a large heap. This is the 917 * space available for memory-intensive applications; most applications 918 * should not need this amount of memory, and should instead stay with the 919 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 920 * This may be the same size as {@link #getMemoryClass()} on memory 921 * constrained devices, or it may be significantly larger on devices with 922 * a large amount of available RAM. 923 * 924 * <p>The is the size of the application's Dalvik heap if it has 925 * specified <code>android:largeHeap="true"</code> in its manifest. 926 */ 927 public int getLargeMemoryClass() { 928 return staticGetLargeMemoryClass(); 929 } 930 931 /** @hide */ 932 static public int staticGetLargeMemoryClass() { 933 // Really brain dead right now -- just take this from the configured 934 // vm heap size, and assume it is in megabytes and thus ends with "m". 935 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 936 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 937 } 938 939 /** 940 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 941 * is ultimately up to the device configuration, but currently it generally means 942 * something in the class of a 512MB device with about a 800x480 or less screen. 943 * This is mostly intended to be used by apps to determine whether they should turn 944 * off certain features that require more RAM. 945 */ 946 public boolean isLowRamDevice() { 947 return isLowRamDeviceStatic(); 948 } 949 950 /** @hide */ 951 public static boolean isLowRamDeviceStatic() { 952 return RoSystemProperties.CONFIG_LOW_RAM; 953 } 954 955 /** 956 * Used by persistent processes to determine if they are running on a 957 * higher-end device so should be okay using hardware drawing acceleration 958 * (which tends to consume a lot more RAM). 959 * @hide 960 */ 961 static public boolean isHighEndGfx() { 962 return !isLowRamDeviceStatic() && 963 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 964 } 965 966 /** 967 * Return the maximum number of recents entries that we will maintain and show. 968 * @hide 969 */ 970 static public int getMaxRecentTasksStatic() { 971 if (gMaxRecentTasks < 0) { 972 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 973 } 974 return gMaxRecentTasks; 975 } 976 977 /** 978 * Return the default limit on the number of recents that an app can make. 979 * @hide 980 */ 981 static public int getDefaultAppRecentsLimitStatic() { 982 return getMaxRecentTasksStatic() / 6; 983 } 984 985 /** 986 * Return the maximum limit on the number of recents that an app can make. 987 * @hide 988 */ 989 static public int getMaxAppRecentsLimitStatic() { 990 return getMaxRecentTasksStatic() / 2; 991 } 992 993 /** 994 * Returns true if the system supports at least one form of multi-window. 995 * E.g. freeform, split-screen, picture-in-picture. 996 * @hide 997 */ 998 static public boolean supportsMultiWindow() { 999 return !isLowRamDeviceStatic() 1000 && Resources.getSystem().getBoolean( 1001 com.android.internal.R.bool.config_supportsMultiWindow); 1002 } 1003 1004 /** 1005 * Returns true if the system supports split screen multi-window. 1006 * @hide 1007 */ 1008 static public boolean supportsSplitScreenMultiWindow() { 1009 return supportsMultiWindow() 1010 && Resources.getSystem().getBoolean( 1011 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1012 } 1013 1014 /** 1015 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1016 * the user interacts with the activity currently in picture-in-picture mode. 1017 */ 1018 public static int getMaxNumPictureInPictureActions() { 1019 return NUM_ALLOWED_PIP_ACTIONS; 1020 } 1021 1022 /** 1023 * Information you can set and retrieve about the current activity within the recent task list. 1024 */ 1025 public static class TaskDescription implements Parcelable { 1026 /** @hide */ 1027 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1028 private static final String ATTR_TASKDESCRIPTIONLABEL = 1029 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1030 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1031 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1032 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1033 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1034 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1035 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1036 1037 private String mLabel; 1038 private Bitmap mIcon; 1039 private String mIconFilename; 1040 private int mColorPrimary; 1041 private int mColorBackground; 1042 1043 /** 1044 * Creates the TaskDescription to the specified values. 1045 * 1046 * @param label A label and description of the current state of this task. 1047 * @param icon An icon that represents the current state of this task. 1048 * @param colorPrimary A color to override the theme's primary color. This color must be 1049 * opaque. 1050 */ 1051 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1052 this(label, icon, null, colorPrimary, 0); 1053 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1054 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1055 } 1056 } 1057 1058 /** 1059 * Creates the TaskDescription to the specified values. 1060 * 1061 * @param label A label and description of the current state of this activity. 1062 * @param icon An icon that represents the current state of this activity. 1063 */ 1064 public TaskDescription(String label, Bitmap icon) { 1065 this(label, icon, null, 0, 0); 1066 } 1067 1068 /** 1069 * Creates the TaskDescription to the specified values. 1070 * 1071 * @param label A label and description of the current state of this activity. 1072 */ 1073 public TaskDescription(String label) { 1074 this(label, null, null, 0, 0); 1075 } 1076 1077 /** 1078 * Creates an empty TaskDescription. 1079 */ 1080 public TaskDescription() { 1081 this(null, null, null, 0, 0); 1082 } 1083 1084 /** @hide */ 1085 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1086 int colorBackground) { 1087 mLabel = label; 1088 mIcon = icon; 1089 mIconFilename = iconFilename; 1090 mColorPrimary = colorPrimary; 1091 mColorBackground = colorBackground; 1092 } 1093 1094 /** 1095 * Creates a copy of another TaskDescription. 1096 */ 1097 public TaskDescription(TaskDescription td) { 1098 copyFrom(td); 1099 } 1100 1101 /** 1102 * Copies this the values from another TaskDescription. 1103 * @hide 1104 */ 1105 public void copyFrom(TaskDescription other) { 1106 mLabel = other.mLabel; 1107 mIcon = other.mIcon; 1108 mIconFilename = other.mIconFilename; 1109 mColorPrimary = other.mColorPrimary; 1110 mColorBackground = other.mColorBackground; 1111 } 1112 1113 private TaskDescription(Parcel source) { 1114 readFromParcel(source); 1115 } 1116 1117 /** 1118 * Sets the label for this task description. 1119 * @hide 1120 */ 1121 public void setLabel(String label) { 1122 mLabel = label; 1123 } 1124 1125 /** 1126 * Sets the primary color for this task description. 1127 * @hide 1128 */ 1129 public void setPrimaryColor(int primaryColor) { 1130 // Ensure that the given color is valid 1131 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1132 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1133 } 1134 mColorPrimary = primaryColor; 1135 } 1136 1137 /** 1138 * Sets the background color for this task description. 1139 * @hide 1140 */ 1141 public void setBackgroundColor(int backgroundColor) { 1142 // Ensure that the given color is valid 1143 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1144 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1145 } 1146 mColorBackground = backgroundColor; 1147 } 1148 1149 /** 1150 * Sets the icon for this task description. 1151 * @hide 1152 */ 1153 public void setIcon(Bitmap icon) { 1154 mIcon = icon; 1155 } 1156 1157 /** 1158 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1159 * bitmap. 1160 * @hide 1161 */ 1162 public void setIconFilename(String iconFilename) { 1163 mIconFilename = iconFilename; 1164 mIcon = null; 1165 } 1166 1167 /** 1168 * @return The label and description of the current state of this task. 1169 */ 1170 public String getLabel() { 1171 return mLabel; 1172 } 1173 1174 /** 1175 * @return The icon that represents the current state of this task. 1176 */ 1177 public Bitmap getIcon() { 1178 if (mIcon != null) { 1179 return mIcon; 1180 } 1181 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1182 } 1183 1184 /** @hide */ 1185 public String getIconFilename() { 1186 return mIconFilename; 1187 } 1188 1189 /** @hide */ 1190 public Bitmap getInMemoryIcon() { 1191 return mIcon; 1192 } 1193 1194 /** @hide */ 1195 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1196 if (iconFilename != null) { 1197 try { 1198 return getService().getTaskDescriptionIcon(iconFilename, 1199 userId); 1200 } catch (RemoteException e) { 1201 throw e.rethrowFromSystemServer(); 1202 } 1203 } 1204 return null; 1205 } 1206 1207 /** 1208 * @return The color override on the theme's primary color. 1209 */ 1210 public int getPrimaryColor() { 1211 return mColorPrimary; 1212 } 1213 1214 /** 1215 * @return The background color. 1216 * @hide 1217 */ 1218 public int getBackgroundColor() { 1219 return mColorBackground; 1220 } 1221 1222 /** @hide */ 1223 public void saveToXml(XmlSerializer out) throws IOException { 1224 if (mLabel != null) { 1225 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1226 } 1227 if (mColorPrimary != 0) { 1228 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1229 Integer.toHexString(mColorPrimary)); 1230 } 1231 if (mColorBackground != 0) { 1232 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1233 Integer.toHexString(mColorBackground)); 1234 } 1235 if (mIconFilename != null) { 1236 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1237 } 1238 } 1239 1240 /** @hide */ 1241 public void restoreFromXml(String attrName, String attrValue) { 1242 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1243 setLabel(attrValue); 1244 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1245 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1246 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1247 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1248 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1249 setIconFilename(attrValue); 1250 } 1251 } 1252 1253 @Override 1254 public int describeContents() { 1255 return 0; 1256 } 1257 1258 @Override 1259 public void writeToParcel(Parcel dest, int flags) { 1260 if (mLabel == null) { 1261 dest.writeInt(0); 1262 } else { 1263 dest.writeInt(1); 1264 dest.writeString(mLabel); 1265 } 1266 if (mIcon == null) { 1267 dest.writeInt(0); 1268 } else { 1269 dest.writeInt(1); 1270 mIcon.writeToParcel(dest, 0); 1271 } 1272 dest.writeInt(mColorPrimary); 1273 dest.writeInt(mColorBackground); 1274 if (mIconFilename == null) { 1275 dest.writeInt(0); 1276 } else { 1277 dest.writeInt(1); 1278 dest.writeString(mIconFilename); 1279 } 1280 } 1281 1282 public void readFromParcel(Parcel source) { 1283 mLabel = source.readInt() > 0 ? source.readString() : null; 1284 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1285 mColorPrimary = source.readInt(); 1286 mColorBackground = source.readInt(); 1287 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1288 } 1289 1290 public static final Creator<TaskDescription> CREATOR 1291 = new Creator<TaskDescription>() { 1292 public TaskDescription createFromParcel(Parcel source) { 1293 return new TaskDescription(source); 1294 } 1295 public TaskDescription[] newArray(int size) { 1296 return new TaskDescription[size]; 1297 } 1298 }; 1299 1300 @Override 1301 public String toString() { 1302 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1303 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1304 " colorBackground: " + mColorBackground; 1305 } 1306 } 1307 1308 /** 1309 * Information you can retrieve about tasks that the user has most recently 1310 * started or visited. 1311 */ 1312 public static class RecentTaskInfo implements Parcelable { 1313 /** 1314 * If this task is currently running, this is the identifier for it. 1315 * If it is not running, this will be -1. 1316 */ 1317 public int id; 1318 1319 /** 1320 * The true identifier of this task, valid even if it is not running. 1321 */ 1322 public int persistentId; 1323 1324 /** 1325 * The original Intent used to launch the task. You can use this 1326 * Intent to re-launch the task (if it is no longer running) or bring 1327 * the current task to the front. 1328 */ 1329 public Intent baseIntent; 1330 1331 /** 1332 * If this task was started from an alias, this is the actual 1333 * activity component that was initially started; the component of 1334 * the baseIntent in this case is the name of the actual activity 1335 * implementation that the alias referred to. Otherwise, this is null. 1336 */ 1337 public ComponentName origActivity; 1338 1339 /** 1340 * The actual activity component that started the task. 1341 * @hide 1342 */ 1343 @Nullable 1344 public ComponentName realActivity; 1345 1346 /** 1347 * Description of the task's last state. 1348 */ 1349 public CharSequence description; 1350 1351 /** 1352 * The id of the ActivityStack this Task was on most recently. 1353 * @hide 1354 */ 1355 public int stackId; 1356 1357 /** 1358 * The id of the user the task was running as. 1359 * @hide 1360 */ 1361 public int userId; 1362 1363 /** 1364 * The first time this task was active. 1365 * @hide 1366 */ 1367 public long firstActiveTime; 1368 1369 /** 1370 * The last time this task was active. 1371 * @hide 1372 */ 1373 public long lastActiveTime; 1374 1375 /** 1376 * The recent activity values for the highest activity in the stack to have set the values. 1377 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1378 */ 1379 public TaskDescription taskDescription; 1380 1381 /** 1382 * Task affiliation for grouping with other tasks. 1383 */ 1384 public int affiliatedTaskId; 1385 1386 /** 1387 * Task affiliation color of the source task with the affiliated task id. 1388 * 1389 * @hide 1390 */ 1391 public int affiliatedTaskColor; 1392 1393 /** 1394 * The component launched as the first activity in the task. 1395 * This can be considered the "application" of this task. 1396 */ 1397 public ComponentName baseActivity; 1398 1399 /** 1400 * The activity component at the top of the history stack of the task. 1401 * This is what the user is currently doing. 1402 */ 1403 public ComponentName topActivity; 1404 1405 /** 1406 * Number of activities in this task. 1407 */ 1408 public int numActivities; 1409 1410 /** 1411 * The bounds of the task. 1412 * @hide 1413 */ 1414 public Rect bounds; 1415 1416 /** 1417 * True if the task can go in the docked stack. 1418 * @hide 1419 */ 1420 public boolean isDockable; 1421 1422 /** 1423 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1424 * @hide 1425 */ 1426 public int resizeMode; 1427 1428 public RecentTaskInfo() { 1429 } 1430 1431 @Override 1432 public int describeContents() { 1433 return 0; 1434 } 1435 1436 @Override 1437 public void writeToParcel(Parcel dest, int flags) { 1438 dest.writeInt(id); 1439 dest.writeInt(persistentId); 1440 if (baseIntent != null) { 1441 dest.writeInt(1); 1442 baseIntent.writeToParcel(dest, 0); 1443 } else { 1444 dest.writeInt(0); 1445 } 1446 ComponentName.writeToParcel(origActivity, dest); 1447 ComponentName.writeToParcel(realActivity, dest); 1448 TextUtils.writeToParcel(description, dest, 1449 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1450 if (taskDescription != null) { 1451 dest.writeInt(1); 1452 taskDescription.writeToParcel(dest, 0); 1453 } else { 1454 dest.writeInt(0); 1455 } 1456 dest.writeInt(stackId); 1457 dest.writeInt(userId); 1458 dest.writeLong(firstActiveTime); 1459 dest.writeLong(lastActiveTime); 1460 dest.writeInt(affiliatedTaskId); 1461 dest.writeInt(affiliatedTaskColor); 1462 ComponentName.writeToParcel(baseActivity, dest); 1463 ComponentName.writeToParcel(topActivity, dest); 1464 dest.writeInt(numActivities); 1465 if (bounds != null) { 1466 dest.writeInt(1); 1467 bounds.writeToParcel(dest, 0); 1468 } else { 1469 dest.writeInt(0); 1470 } 1471 dest.writeInt(isDockable ? 1 : 0); 1472 dest.writeInt(resizeMode); 1473 } 1474 1475 public void readFromParcel(Parcel source) { 1476 id = source.readInt(); 1477 persistentId = source.readInt(); 1478 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1479 origActivity = ComponentName.readFromParcel(source); 1480 realActivity = ComponentName.readFromParcel(source); 1481 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1482 taskDescription = source.readInt() > 0 ? 1483 TaskDescription.CREATOR.createFromParcel(source) : null; 1484 stackId = source.readInt(); 1485 userId = source.readInt(); 1486 firstActiveTime = source.readLong(); 1487 lastActiveTime = source.readLong(); 1488 affiliatedTaskId = source.readInt(); 1489 affiliatedTaskColor = source.readInt(); 1490 baseActivity = ComponentName.readFromParcel(source); 1491 topActivity = ComponentName.readFromParcel(source); 1492 numActivities = source.readInt(); 1493 bounds = source.readInt() > 0 ? 1494 Rect.CREATOR.createFromParcel(source) : null; 1495 isDockable = source.readInt() == 1; 1496 resizeMode = source.readInt(); 1497 } 1498 1499 public static final Creator<RecentTaskInfo> CREATOR 1500 = new Creator<RecentTaskInfo>() { 1501 public RecentTaskInfo createFromParcel(Parcel source) { 1502 return new RecentTaskInfo(source); 1503 } 1504 public RecentTaskInfo[] newArray(int size) { 1505 return new RecentTaskInfo[size]; 1506 } 1507 }; 1508 1509 private RecentTaskInfo(Parcel source) { 1510 readFromParcel(source); 1511 } 1512 } 1513 1514 /** 1515 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1516 * that have set their 1517 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1518 */ 1519 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1520 1521 /** 1522 * Provides a list that does not contain any 1523 * recent tasks that currently are not available to the user. 1524 */ 1525 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1526 1527 /** 1528 * Provides a list that contains recent tasks for all 1529 * profiles of a user. 1530 * @hide 1531 */ 1532 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1533 1534 /** 1535 * Ignores all tasks that are on the home stack. 1536 * @hide 1537 */ 1538 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1539 1540 /** 1541 * Ignores the top task in the docked stack. 1542 * @hide 1543 */ 1544 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1545 1546 /** 1547 * Ignores all tasks that are on the pinned stack. 1548 * @hide 1549 */ 1550 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1551 1552 /** 1553 * <p></p>Return a list of the tasks that the user has recently launched, with 1554 * the most recent being first and older ones after in order. 1555 * 1556 * <p><b>Note: this method is only intended for debugging and presenting 1557 * task management user interfaces</b>. This should never be used for 1558 * core logic in an application, such as deciding between different 1559 * behaviors based on the information found here. Such uses are 1560 * <em>not</em> supported, and will likely break in the future. For 1561 * example, if multiple applications can be actively running at the 1562 * same time, assumptions made about the meaning of the data here for 1563 * purposes of control flow will be incorrect.</p> 1564 * 1565 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1566 * no longer available to third party applications: the introduction of 1567 * document-centric recents means 1568 * it can leak personal information to the caller. For backwards compatibility, 1569 * it will still return a small subset of its data: at least the caller's 1570 * own tasks (though see {@link #getAppTasks()} for the correct supported 1571 * way to retrieve that information), and possibly some other tasks 1572 * such as home that are known to not be sensitive. 1573 * 1574 * @param maxNum The maximum number of entries to return in the list. The 1575 * actual number returned may be smaller, depending on how many tasks the 1576 * user has started and the maximum number the system can remember. 1577 * @param flags Information about what to return. May be any combination 1578 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1579 * 1580 * @return Returns a list of RecentTaskInfo records describing each of 1581 * the recent tasks. 1582 */ 1583 @Deprecated 1584 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1585 throws SecurityException { 1586 try { 1587 return getService().getRecentTasks(maxNum, 1588 flags, UserHandle.myUserId()).getList(); 1589 } catch (RemoteException e) { 1590 throw e.rethrowFromSystemServer(); 1591 } 1592 } 1593 1594 /** 1595 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1596 * specific user. It requires holding 1597 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1598 * @param maxNum The maximum number of entries to return in the list. The 1599 * actual number returned may be smaller, depending on how many tasks the 1600 * user has started and the maximum number the system can remember. 1601 * @param flags Information about what to return. May be any combination 1602 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1603 * 1604 * @return Returns a list of RecentTaskInfo records describing each of 1605 * the recent tasks. Most recently activated tasks go first. 1606 * 1607 * @hide 1608 */ 1609 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1610 throws SecurityException { 1611 try { 1612 return getService().getRecentTasks(maxNum, 1613 flags, userId).getList(); 1614 } catch (RemoteException e) { 1615 throw e.rethrowFromSystemServer(); 1616 } 1617 } 1618 1619 /** 1620 * Information you can retrieve about a particular task that is currently 1621 * "running" in the system. Note that a running task does not mean the 1622 * given task actually has a process it is actively running in; it simply 1623 * means that the user has gone to it and never closed it, but currently 1624 * the system may have killed its process and is only holding on to its 1625 * last state in order to restart it when the user returns. 1626 */ 1627 public static class RunningTaskInfo implements Parcelable { 1628 /** 1629 * A unique identifier for this task. 1630 */ 1631 public int id; 1632 1633 /** 1634 * The stack that currently contains this task. 1635 * @hide 1636 */ 1637 public int stackId; 1638 1639 /** 1640 * The component launched as the first activity in the task. This can 1641 * be considered the "application" of this task. 1642 */ 1643 public ComponentName baseActivity; 1644 1645 /** 1646 * The activity component at the top of the history stack of the task. 1647 * This is what the user is currently doing. 1648 */ 1649 public ComponentName topActivity; 1650 1651 /** 1652 * Thumbnail representation of the task's current state. Currently 1653 * always null. 1654 */ 1655 public Bitmap thumbnail; 1656 1657 /** 1658 * Description of the task's current state. 1659 */ 1660 public CharSequence description; 1661 1662 /** 1663 * Number of activities in this task. 1664 */ 1665 public int numActivities; 1666 1667 /** 1668 * Number of activities that are currently running (not stopped 1669 * and persisted) in this task. 1670 */ 1671 public int numRunning; 1672 1673 /** 1674 * Last time task was run. For sorting. 1675 * @hide 1676 */ 1677 public long lastActiveTime; 1678 1679 /** 1680 * True if the task can go in the docked stack. 1681 * @hide 1682 */ 1683 public boolean isDockable; 1684 1685 /** 1686 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1687 * @hide 1688 */ 1689 public int resizeMode; 1690 1691 public RunningTaskInfo() { 1692 } 1693 1694 public int describeContents() { 1695 return 0; 1696 } 1697 1698 public void writeToParcel(Parcel dest, int flags) { 1699 dest.writeInt(id); 1700 dest.writeInt(stackId); 1701 ComponentName.writeToParcel(baseActivity, dest); 1702 ComponentName.writeToParcel(topActivity, dest); 1703 if (thumbnail != null) { 1704 dest.writeInt(1); 1705 thumbnail.writeToParcel(dest, 0); 1706 } else { 1707 dest.writeInt(0); 1708 } 1709 TextUtils.writeToParcel(description, dest, 1710 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1711 dest.writeInt(numActivities); 1712 dest.writeInt(numRunning); 1713 dest.writeInt(isDockable ? 1 : 0); 1714 dest.writeInt(resizeMode); 1715 } 1716 1717 public void readFromParcel(Parcel source) { 1718 id = source.readInt(); 1719 stackId = source.readInt(); 1720 baseActivity = ComponentName.readFromParcel(source); 1721 topActivity = ComponentName.readFromParcel(source); 1722 if (source.readInt() != 0) { 1723 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1724 } else { 1725 thumbnail = null; 1726 } 1727 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1728 numActivities = source.readInt(); 1729 numRunning = source.readInt(); 1730 isDockable = source.readInt() != 0; 1731 resizeMode = source.readInt(); 1732 } 1733 1734 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1735 public RunningTaskInfo createFromParcel(Parcel source) { 1736 return new RunningTaskInfo(source); 1737 } 1738 public RunningTaskInfo[] newArray(int size) { 1739 return new RunningTaskInfo[size]; 1740 } 1741 }; 1742 1743 private RunningTaskInfo(Parcel source) { 1744 readFromParcel(source); 1745 } 1746 } 1747 1748 /** 1749 * Get the list of tasks associated with the calling application. 1750 * 1751 * @return The list of tasks associated with the application making this call. 1752 * @throws SecurityException 1753 */ 1754 public List<ActivityManager.AppTask> getAppTasks() { 1755 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1756 List<IBinder> appTasks; 1757 try { 1758 appTasks = getService().getAppTasks(mContext.getPackageName()); 1759 } catch (RemoteException e) { 1760 throw e.rethrowFromSystemServer(); 1761 } 1762 int numAppTasks = appTasks.size(); 1763 for (int i = 0; i < numAppTasks; i++) { 1764 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1765 } 1766 return tasks; 1767 } 1768 1769 /** 1770 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1771 * with {@link #addAppTask}. 1772 */ 1773 public Size getAppTaskThumbnailSize() { 1774 synchronized (this) { 1775 ensureAppTaskThumbnailSizeLocked(); 1776 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1777 } 1778 } 1779 1780 private void ensureAppTaskThumbnailSizeLocked() { 1781 if (mAppTaskThumbnailSize == null) { 1782 try { 1783 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1784 } catch (RemoteException e) { 1785 throw e.rethrowFromSystemServer(); 1786 } 1787 } 1788 } 1789 1790 /** 1791 * Add a new {@link AppTask} for the calling application. This will create a new 1792 * recents entry that is added to the <b>end</b> of all existing recents. 1793 * 1794 * @param activity The activity that is adding the entry. This is used to help determine 1795 * the context that the new recents entry will be in. 1796 * @param intent The Intent that describes the recents entry. This is the same Intent that 1797 * you would have used to launch the activity for it. In generally you will want to set 1798 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1799 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1800 * entry will exist without an activity, so it doesn't make sense to not retain it when 1801 * its activity disappears. The given Intent here also must have an explicit ComponentName 1802 * set on it. 1803 * @param description Optional additional description information. 1804 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1805 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1806 * recreated in your process, probably in a way you don't like, before the recents entry 1807 * is added. 1808 * 1809 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1810 * most likely cause of failure is that there is no more room for more tasks for your app. 1811 */ 1812 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1813 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1814 Point size; 1815 synchronized (this) { 1816 ensureAppTaskThumbnailSizeLocked(); 1817 size = mAppTaskThumbnailSize; 1818 } 1819 final int tw = thumbnail.getWidth(); 1820 final int th = thumbnail.getHeight(); 1821 if (tw != size.x || th != size.y) { 1822 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1823 1824 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1825 float scale; 1826 float dx = 0, dy = 0; 1827 if (tw * size.x > size.y * th) { 1828 scale = (float) size.x / (float) th; 1829 dx = (size.y - tw * scale) * 0.5f; 1830 } else { 1831 scale = (float) size.y / (float) tw; 1832 dy = (size.x - th * scale) * 0.5f; 1833 } 1834 Matrix matrix = new Matrix(); 1835 matrix.setScale(scale, scale); 1836 matrix.postTranslate((int) (dx + 0.5f), 0); 1837 1838 Canvas canvas = new Canvas(bm); 1839 canvas.drawBitmap(thumbnail, matrix, null); 1840 canvas.setBitmap(null); 1841 1842 thumbnail = bm; 1843 } 1844 if (description == null) { 1845 description = new TaskDescription(); 1846 } 1847 try { 1848 return getService().addAppTask(activity.getActivityToken(), 1849 intent, description, thumbnail); 1850 } catch (RemoteException e) { 1851 throw e.rethrowFromSystemServer(); 1852 } 1853 } 1854 1855 /** 1856 * Return a list of the tasks that are currently running, with 1857 * the most recent being first and older ones after in order. Note that 1858 * "running" does not mean any of the task's code is currently loaded or 1859 * activity -- the task may have been frozen by the system, so that it 1860 * can be restarted in its previous state when next brought to the 1861 * foreground. 1862 * 1863 * <p><b>Note: this method is only intended for debugging and presenting 1864 * task management user interfaces</b>. This should never be used for 1865 * core logic in an application, such as deciding between different 1866 * behaviors based on the information found here. Such uses are 1867 * <em>not</em> supported, and will likely break in the future. For 1868 * example, if multiple applications can be actively running at the 1869 * same time, assumptions made about the meaning of the data here for 1870 * purposes of control flow will be incorrect.</p> 1871 * 1872 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1873 * is no longer available to third party 1874 * applications: the introduction of document-centric recents means 1875 * it can leak person information to the caller. For backwards compatibility, 1876 * it will still retu rn a small subset of its data: at least the caller's 1877 * own tasks, and possibly some other tasks 1878 * such as home that are known to not be sensitive. 1879 * 1880 * @param maxNum The maximum number of entries to return in the list. The 1881 * actual number returned may be smaller, depending on how many tasks the 1882 * user has started. 1883 * 1884 * @return Returns a list of RunningTaskInfo records describing each of 1885 * the running tasks. 1886 */ 1887 @Deprecated 1888 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1889 throws SecurityException { 1890 try { 1891 return getService().getTasks(maxNum, 0); 1892 } catch (RemoteException e) { 1893 throw e.rethrowFromSystemServer(); 1894 } 1895 } 1896 1897 /** 1898 * Completely remove the given task. 1899 * 1900 * @param taskId Identifier of the task to be removed. 1901 * @return Returns true if the given task was found and removed. 1902 * 1903 * @hide 1904 */ 1905 public boolean removeTask(int taskId) throws SecurityException { 1906 try { 1907 return getService().removeTask(taskId); 1908 } catch (RemoteException e) { 1909 throw e.rethrowFromSystemServer(); 1910 } 1911 } 1912 1913 /** 1914 * Metadata related to the {@link TaskThumbnail}. 1915 * 1916 * @hide 1917 */ 1918 public static class TaskThumbnailInfo implements Parcelable { 1919 /** @hide */ 1920 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1921 private static final String ATTR_TASK_WIDTH = 1922 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1923 private static final String ATTR_TASK_HEIGHT = 1924 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1925 private static final String ATTR_SCREEN_ORIENTATION = 1926 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1927 1928 public int taskWidth; 1929 public int taskHeight; 1930 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1931 1932 public TaskThumbnailInfo() { 1933 // Do nothing 1934 } 1935 1936 private TaskThumbnailInfo(Parcel source) { 1937 readFromParcel(source); 1938 } 1939 1940 /** 1941 * Resets this info state to the initial state. 1942 * @hide 1943 */ 1944 public void reset() { 1945 taskWidth = 0; 1946 taskHeight = 0; 1947 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1948 } 1949 1950 /** 1951 * Copies from another ThumbnailInfo. 1952 */ 1953 public void copyFrom(TaskThumbnailInfo o) { 1954 taskWidth = o.taskWidth; 1955 taskHeight = o.taskHeight; 1956 screenOrientation = o.screenOrientation; 1957 } 1958 1959 /** @hide */ 1960 public void saveToXml(XmlSerializer out) throws IOException { 1961 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 1962 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 1963 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 1964 } 1965 1966 /** @hide */ 1967 public void restoreFromXml(String attrName, String attrValue) { 1968 if (ATTR_TASK_WIDTH.equals(attrName)) { 1969 taskWidth = Integer.parseInt(attrValue); 1970 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 1971 taskHeight = Integer.parseInt(attrValue); 1972 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 1973 screenOrientation = Integer.parseInt(attrValue); 1974 } 1975 } 1976 1977 public int describeContents() { 1978 return 0; 1979 } 1980 1981 public void writeToParcel(Parcel dest, int flags) { 1982 dest.writeInt(taskWidth); 1983 dest.writeInt(taskHeight); 1984 dest.writeInt(screenOrientation); 1985 } 1986 1987 public void readFromParcel(Parcel source) { 1988 taskWidth = source.readInt(); 1989 taskHeight = source.readInt(); 1990 screenOrientation = source.readInt(); 1991 } 1992 1993 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 1994 public TaskThumbnailInfo createFromParcel(Parcel source) { 1995 return new TaskThumbnailInfo(source); 1996 } 1997 public TaskThumbnailInfo[] newArray(int size) { 1998 return new TaskThumbnailInfo[size]; 1999 } 2000 }; 2001 } 2002 2003 /** @hide */ 2004 public static class TaskThumbnail implements Parcelable { 2005 public Bitmap mainThumbnail; 2006 public ParcelFileDescriptor thumbnailFileDescriptor; 2007 public TaskThumbnailInfo thumbnailInfo; 2008 2009 public TaskThumbnail() { 2010 } 2011 2012 private TaskThumbnail(Parcel source) { 2013 readFromParcel(source); 2014 } 2015 2016 public int describeContents() { 2017 if (thumbnailFileDescriptor != null) { 2018 return thumbnailFileDescriptor.describeContents(); 2019 } 2020 return 0; 2021 } 2022 2023 public void writeToParcel(Parcel dest, int flags) { 2024 if (mainThumbnail != null) { 2025 dest.writeInt(1); 2026 mainThumbnail.writeToParcel(dest, flags); 2027 } else { 2028 dest.writeInt(0); 2029 } 2030 if (thumbnailFileDescriptor != null) { 2031 dest.writeInt(1); 2032 thumbnailFileDescriptor.writeToParcel(dest, flags); 2033 } else { 2034 dest.writeInt(0); 2035 } 2036 if (thumbnailInfo != null) { 2037 dest.writeInt(1); 2038 thumbnailInfo.writeToParcel(dest, flags); 2039 } else { 2040 dest.writeInt(0); 2041 } 2042 } 2043 2044 public void readFromParcel(Parcel source) { 2045 if (source.readInt() != 0) { 2046 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2047 } else { 2048 mainThumbnail = null; 2049 } 2050 if (source.readInt() != 0) { 2051 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2052 } else { 2053 thumbnailFileDescriptor = null; 2054 } 2055 if (source.readInt() != 0) { 2056 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2057 } else { 2058 thumbnailInfo = null; 2059 } 2060 } 2061 2062 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2063 public TaskThumbnail createFromParcel(Parcel source) { 2064 return new TaskThumbnail(source); 2065 } 2066 public TaskThumbnail[] newArray(int size) { 2067 return new TaskThumbnail[size]; 2068 } 2069 }; 2070 } 2071 2072 /** @hide */ 2073 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2074 try { 2075 return getService().getTaskThumbnail(id); 2076 } catch (RemoteException e) { 2077 throw e.rethrowFromSystemServer(); 2078 } 2079 } 2080 2081 /** 2082 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2083 * activity along with the task, so it is positioned immediately behind 2084 * the task. 2085 */ 2086 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2087 2088 /** 2089 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2090 * user-instigated action, so the current activity will not receive a 2091 * hint that the user is leaving. 2092 */ 2093 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2094 2095 /** 2096 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2097 * with a null options argument. 2098 * 2099 * @param taskId The identifier of the task to be moved, as found in 2100 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2101 * @param flags Additional operational flags, 0 or more of 2102 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2103 */ 2104 public void moveTaskToFront(int taskId, int flags) { 2105 moveTaskToFront(taskId, flags, null); 2106 } 2107 2108 /** 2109 * Ask that the task associated with a given task ID be moved to the 2110 * front of the stack, so it is now visible to the user. Requires that 2111 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2112 * or a SecurityException will be thrown. 2113 * 2114 * @param taskId The identifier of the task to be moved, as found in 2115 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2116 * @param flags Additional operational flags, 0 or more of 2117 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2118 * @param options Additional options for the operation, either null or 2119 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2120 * Context.startActivity(Intent, Bundle)}. 2121 */ 2122 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2123 try { 2124 getService().moveTaskToFront(taskId, flags, options); 2125 } catch (RemoteException e) { 2126 throw e.rethrowFromSystemServer(); 2127 } 2128 } 2129 2130 /** 2131 * Information you can retrieve about a particular Service that is 2132 * currently running in the system. 2133 */ 2134 public static class RunningServiceInfo implements Parcelable { 2135 /** 2136 * The service component. 2137 */ 2138 public ComponentName service; 2139 2140 /** 2141 * If non-zero, this is the process the service is running in. 2142 */ 2143 public int pid; 2144 2145 /** 2146 * The UID that owns this service. 2147 */ 2148 public int uid; 2149 2150 /** 2151 * The name of the process this service runs in. 2152 */ 2153 public String process; 2154 2155 /** 2156 * Set to true if the service has asked to run as a foreground process. 2157 */ 2158 public boolean foreground; 2159 2160 /** 2161 * The time when the service was first made active, either by someone 2162 * starting or binding to it. This 2163 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2164 */ 2165 public long activeSince; 2166 2167 /** 2168 * Set to true if this service has been explicitly started. 2169 */ 2170 public boolean started; 2171 2172 /** 2173 * Number of clients connected to the service. 2174 */ 2175 public int clientCount; 2176 2177 /** 2178 * Number of times the service's process has crashed while the service 2179 * is running. 2180 */ 2181 public int crashCount; 2182 2183 /** 2184 * The time when there was last activity in the service (either 2185 * explicit requests to start it or clients binding to it). This 2186 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2187 */ 2188 public long lastActivityTime; 2189 2190 /** 2191 * If non-zero, this service is not currently running, but scheduled to 2192 * restart at the given time. 2193 */ 2194 public long restarting; 2195 2196 /** 2197 * Bit for {@link #flags}: set if this service has been 2198 * explicitly started. 2199 */ 2200 public static final int FLAG_STARTED = 1<<0; 2201 2202 /** 2203 * Bit for {@link #flags}: set if the service has asked to 2204 * run as a foreground process. 2205 */ 2206 public static final int FLAG_FOREGROUND = 1<<1; 2207 2208 /** 2209 * Bit for {@link #flags): set if the service is running in a 2210 * core system process. 2211 */ 2212 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2213 2214 /** 2215 * Bit for {@link #flags): set if the service is running in a 2216 * persistent process. 2217 */ 2218 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2219 2220 /** 2221 * Running flags. 2222 */ 2223 public int flags; 2224 2225 /** 2226 * For special services that are bound to by system code, this is 2227 * the package that holds the binding. 2228 */ 2229 public String clientPackage; 2230 2231 /** 2232 * For special services that are bound to by system code, this is 2233 * a string resource providing a user-visible label for who the 2234 * client is. 2235 */ 2236 public int clientLabel; 2237 2238 public RunningServiceInfo() { 2239 } 2240 2241 public int describeContents() { 2242 return 0; 2243 } 2244 2245 public void writeToParcel(Parcel dest, int flags) { 2246 ComponentName.writeToParcel(service, dest); 2247 dest.writeInt(pid); 2248 dest.writeInt(uid); 2249 dest.writeString(process); 2250 dest.writeInt(foreground ? 1 : 0); 2251 dest.writeLong(activeSince); 2252 dest.writeInt(started ? 1 : 0); 2253 dest.writeInt(clientCount); 2254 dest.writeInt(crashCount); 2255 dest.writeLong(lastActivityTime); 2256 dest.writeLong(restarting); 2257 dest.writeInt(this.flags); 2258 dest.writeString(clientPackage); 2259 dest.writeInt(clientLabel); 2260 } 2261 2262 public void readFromParcel(Parcel source) { 2263 service = ComponentName.readFromParcel(source); 2264 pid = source.readInt(); 2265 uid = source.readInt(); 2266 process = source.readString(); 2267 foreground = source.readInt() != 0; 2268 activeSince = source.readLong(); 2269 started = source.readInt() != 0; 2270 clientCount = source.readInt(); 2271 crashCount = source.readInt(); 2272 lastActivityTime = source.readLong(); 2273 restarting = source.readLong(); 2274 flags = source.readInt(); 2275 clientPackage = source.readString(); 2276 clientLabel = source.readInt(); 2277 } 2278 2279 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2280 public RunningServiceInfo createFromParcel(Parcel source) { 2281 return new RunningServiceInfo(source); 2282 } 2283 public RunningServiceInfo[] newArray(int size) { 2284 return new RunningServiceInfo[size]; 2285 } 2286 }; 2287 2288 private RunningServiceInfo(Parcel source) { 2289 readFromParcel(source); 2290 } 2291 } 2292 2293 /** 2294 * Return a list of the services that are currently running. 2295 * 2296 * <p><b>Note: this method is only intended for debugging or implementing 2297 * service management type user interfaces.</b></p> 2298 * 2299 * @param maxNum The maximum number of entries to return in the list. The 2300 * actual number returned may be smaller, depending on how many services 2301 * are running. 2302 * 2303 * @return Returns a list of RunningServiceInfo records describing each of 2304 * the running tasks. 2305 */ 2306 public List<RunningServiceInfo> getRunningServices(int maxNum) 2307 throws SecurityException { 2308 try { 2309 return getService() 2310 .getServices(maxNum, 0); 2311 } catch (RemoteException e) { 2312 throw e.rethrowFromSystemServer(); 2313 } 2314 } 2315 2316 /** 2317 * Returns a PendingIntent you can start to show a control panel for the 2318 * given running service. If the service does not have a control panel, 2319 * null is returned. 2320 */ 2321 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2322 throws SecurityException { 2323 try { 2324 return getService() 2325 .getRunningServiceControlPanel(service); 2326 } catch (RemoteException e) { 2327 throw e.rethrowFromSystemServer(); 2328 } 2329 } 2330 2331 /** 2332 * Information you can retrieve about the available memory through 2333 * {@link ActivityManager#getMemoryInfo}. 2334 */ 2335 public static class MemoryInfo implements Parcelable { 2336 /** 2337 * The available memory on the system. This number should not 2338 * be considered absolute: due to the nature of the kernel, a significant 2339 * portion of this memory is actually in use and needed for the overall 2340 * system to run well. 2341 */ 2342 public long availMem; 2343 2344 /** 2345 * The total memory accessible by the kernel. This is basically the 2346 * RAM size of the device, not including below-kernel fixed allocations 2347 * like DMA buffers, RAM for the baseband CPU, etc. 2348 */ 2349 public long totalMem; 2350 2351 /** 2352 * The threshold of {@link #availMem} at which we consider memory to be 2353 * low and start killing background services and other non-extraneous 2354 * processes. 2355 */ 2356 public long threshold; 2357 2358 /** 2359 * Set to true if the system considers itself to currently be in a low 2360 * memory situation. 2361 */ 2362 public boolean lowMemory; 2363 2364 /** @hide */ 2365 public long hiddenAppThreshold; 2366 /** @hide */ 2367 public long secondaryServerThreshold; 2368 /** @hide */ 2369 public long visibleAppThreshold; 2370 /** @hide */ 2371 public long foregroundAppThreshold; 2372 2373 public MemoryInfo() { 2374 } 2375 2376 public int describeContents() { 2377 return 0; 2378 } 2379 2380 public void writeToParcel(Parcel dest, int flags) { 2381 dest.writeLong(availMem); 2382 dest.writeLong(totalMem); 2383 dest.writeLong(threshold); 2384 dest.writeInt(lowMemory ? 1 : 0); 2385 dest.writeLong(hiddenAppThreshold); 2386 dest.writeLong(secondaryServerThreshold); 2387 dest.writeLong(visibleAppThreshold); 2388 dest.writeLong(foregroundAppThreshold); 2389 } 2390 2391 public void readFromParcel(Parcel source) { 2392 availMem = source.readLong(); 2393 totalMem = source.readLong(); 2394 threshold = source.readLong(); 2395 lowMemory = source.readInt() != 0; 2396 hiddenAppThreshold = source.readLong(); 2397 secondaryServerThreshold = source.readLong(); 2398 visibleAppThreshold = source.readLong(); 2399 foregroundAppThreshold = source.readLong(); 2400 } 2401 2402 public static final Creator<MemoryInfo> CREATOR 2403 = new Creator<MemoryInfo>() { 2404 public MemoryInfo createFromParcel(Parcel source) { 2405 return new MemoryInfo(source); 2406 } 2407 public MemoryInfo[] newArray(int size) { 2408 return new MemoryInfo[size]; 2409 } 2410 }; 2411 2412 private MemoryInfo(Parcel source) { 2413 readFromParcel(source); 2414 } 2415 } 2416 2417 /** 2418 * Return general information about the memory state of the system. This 2419 * can be used to help decide how to manage your own memory, though note 2420 * that polling is not recommended and 2421 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2422 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2423 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2424 * level of your process as needed, which gives a better hint for how to 2425 * manage its memory. 2426 */ 2427 public void getMemoryInfo(MemoryInfo outInfo) { 2428 try { 2429 getService().getMemoryInfo(outInfo); 2430 } catch (RemoteException e) { 2431 throw e.rethrowFromSystemServer(); 2432 } 2433 } 2434 2435 /** 2436 * Information you can retrieve about an ActivityStack in the system. 2437 * @hide 2438 */ 2439 public static class StackInfo implements Parcelable { 2440 public int stackId; 2441 public Rect bounds = new Rect(); 2442 public int[] taskIds; 2443 public String[] taskNames; 2444 public Rect[] taskBounds; 2445 public int[] taskUserIds; 2446 public ComponentName topActivity; 2447 public int displayId; 2448 public int userId; 2449 public boolean visible; 2450 // Index of the stack in the display's stack list, can be used for comparison of stack order 2451 public int position; 2452 2453 @Override 2454 public int describeContents() { 2455 return 0; 2456 } 2457 2458 @Override 2459 public void writeToParcel(Parcel dest, int flags) { 2460 dest.writeInt(stackId); 2461 dest.writeInt(bounds.left); 2462 dest.writeInt(bounds.top); 2463 dest.writeInt(bounds.right); 2464 dest.writeInt(bounds.bottom); 2465 dest.writeIntArray(taskIds); 2466 dest.writeStringArray(taskNames); 2467 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2468 dest.writeInt(boundsCount); 2469 for (int i = 0; i < boundsCount; i++) { 2470 dest.writeInt(taskBounds[i].left); 2471 dest.writeInt(taskBounds[i].top); 2472 dest.writeInt(taskBounds[i].right); 2473 dest.writeInt(taskBounds[i].bottom); 2474 } 2475 dest.writeIntArray(taskUserIds); 2476 dest.writeInt(displayId); 2477 dest.writeInt(userId); 2478 dest.writeInt(visible ? 1 : 0); 2479 dest.writeInt(position); 2480 if (topActivity != null) { 2481 dest.writeInt(1); 2482 topActivity.writeToParcel(dest, 0); 2483 } else { 2484 dest.writeInt(0); 2485 } 2486 } 2487 2488 public void readFromParcel(Parcel source) { 2489 stackId = source.readInt(); 2490 bounds = new Rect( 2491 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2492 taskIds = source.createIntArray(); 2493 taskNames = source.createStringArray(); 2494 final int boundsCount = source.readInt(); 2495 if (boundsCount > 0) { 2496 taskBounds = new Rect[boundsCount]; 2497 for (int i = 0; i < boundsCount; i++) { 2498 taskBounds[i] = new Rect(); 2499 taskBounds[i].set( 2500 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2501 } 2502 } else { 2503 taskBounds = null; 2504 } 2505 taskUserIds = source.createIntArray(); 2506 displayId = source.readInt(); 2507 userId = source.readInt(); 2508 visible = source.readInt() > 0; 2509 position = source.readInt(); 2510 if (source.readInt() > 0) { 2511 topActivity = ComponentName.readFromParcel(source); 2512 } 2513 } 2514 2515 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2516 @Override 2517 public StackInfo createFromParcel(Parcel source) { 2518 return new StackInfo(source); 2519 } 2520 @Override 2521 public StackInfo[] newArray(int size) { 2522 return new StackInfo[size]; 2523 } 2524 }; 2525 2526 public StackInfo() { 2527 } 2528 2529 private StackInfo(Parcel source) { 2530 readFromParcel(source); 2531 } 2532 2533 public String toString(String prefix) { 2534 StringBuilder sb = new StringBuilder(256); 2535 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2536 sb.append(" bounds="); sb.append(bounds.toShortString()); 2537 sb.append(" displayId="); sb.append(displayId); 2538 sb.append(" userId="); sb.append(userId); 2539 sb.append("\n"); 2540 prefix = prefix + " "; 2541 for (int i = 0; i < taskIds.length; ++i) { 2542 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2543 sb.append(": "); sb.append(taskNames[i]); 2544 if (taskBounds != null) { 2545 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2546 } 2547 sb.append(" userId=").append(taskUserIds[i]); 2548 sb.append(" visible=").append(visible); 2549 if (topActivity != null) { 2550 sb.append(" topActivity=").append(topActivity); 2551 } 2552 sb.append("\n"); 2553 } 2554 return sb.toString(); 2555 } 2556 2557 @Override 2558 public String toString() { 2559 return toString(""); 2560 } 2561 } 2562 2563 /** 2564 * @hide 2565 */ 2566 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2567 try { 2568 return getService().clearApplicationUserData(packageName, 2569 observer, UserHandle.myUserId()); 2570 } catch (RemoteException e) { 2571 throw e.rethrowFromSystemServer(); 2572 } 2573 } 2574 2575 /** 2576 * Permits an application to erase its own data from disk. This is equivalent to 2577 * the user choosing to clear the app's data from within the device settings UI. It 2578 * erases all dynamic data associated with the app -- its private data and data in its 2579 * private area on external storage -- but does not remove the installed application 2580 * itself, nor any OBB files. 2581 * 2582 * @return {@code true} if the application successfully requested that the application's 2583 * data be erased; {@code false} otherwise. 2584 */ 2585 public boolean clearApplicationUserData() { 2586 return clearApplicationUserData(mContext.getPackageName(), null); 2587 } 2588 2589 2590 /** 2591 * Permits an application to get the persistent URI permissions granted to another. 2592 * 2593 * <p>Typically called by Settings. 2594 * 2595 * @param packageName application to look for the granted permissions 2596 * @return list of granted URI permissions 2597 * 2598 * @hide 2599 */ 2600 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2601 try { 2602 return getService().getGrantedUriPermissions(packageName, 2603 UserHandle.myUserId()); 2604 } catch (RemoteException e) { 2605 throw e.rethrowFromSystemServer(); 2606 } 2607 } 2608 2609 /** 2610 * Permits an application to clear the persistent URI permissions granted to another. 2611 * 2612 * <p>Typically called by Settings. 2613 * 2614 * @param packageName application to clear its granted permissions 2615 * 2616 * @hide 2617 */ 2618 public void clearGrantedUriPermissions(String packageName) { 2619 try { 2620 getService().clearGrantedUriPermissions(packageName, 2621 UserHandle.myUserId()); 2622 } catch (RemoteException e) { 2623 throw e.rethrowFromSystemServer(); 2624 } 2625 } 2626 2627 /** 2628 * Information you can retrieve about any processes that are in an error condition. 2629 */ 2630 public static class ProcessErrorStateInfo implements Parcelable { 2631 /** 2632 * Condition codes 2633 */ 2634 public static final int NO_ERROR = 0; 2635 public static final int CRASHED = 1; 2636 public static final int NOT_RESPONDING = 2; 2637 2638 /** 2639 * The condition that the process is in. 2640 */ 2641 public int condition; 2642 2643 /** 2644 * The process name in which the crash or error occurred. 2645 */ 2646 public String processName; 2647 2648 /** 2649 * The pid of this process; 0 if none 2650 */ 2651 public int pid; 2652 2653 /** 2654 * The kernel user-ID that has been assigned to this process; 2655 * currently this is not a unique ID (multiple applications can have 2656 * the same uid). 2657 */ 2658 public int uid; 2659 2660 /** 2661 * The activity name associated with the error, if known. May be null. 2662 */ 2663 public String tag; 2664 2665 /** 2666 * A short message describing the error condition. 2667 */ 2668 public String shortMsg; 2669 2670 /** 2671 * A long message describing the error condition. 2672 */ 2673 public String longMsg; 2674 2675 /** 2676 * The stack trace where the error originated. May be null. 2677 */ 2678 public String stackTrace; 2679 2680 /** 2681 * to be deprecated: This value will always be null. 2682 */ 2683 public byte[] crashData = null; 2684 2685 public ProcessErrorStateInfo() { 2686 } 2687 2688 @Override 2689 public int describeContents() { 2690 return 0; 2691 } 2692 2693 @Override 2694 public void writeToParcel(Parcel dest, int flags) { 2695 dest.writeInt(condition); 2696 dest.writeString(processName); 2697 dest.writeInt(pid); 2698 dest.writeInt(uid); 2699 dest.writeString(tag); 2700 dest.writeString(shortMsg); 2701 dest.writeString(longMsg); 2702 dest.writeString(stackTrace); 2703 } 2704 2705 public void readFromParcel(Parcel source) { 2706 condition = source.readInt(); 2707 processName = source.readString(); 2708 pid = source.readInt(); 2709 uid = source.readInt(); 2710 tag = source.readString(); 2711 shortMsg = source.readString(); 2712 longMsg = source.readString(); 2713 stackTrace = source.readString(); 2714 } 2715 2716 public static final Creator<ProcessErrorStateInfo> CREATOR = 2717 new Creator<ProcessErrorStateInfo>() { 2718 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2719 return new ProcessErrorStateInfo(source); 2720 } 2721 public ProcessErrorStateInfo[] newArray(int size) { 2722 return new ProcessErrorStateInfo[size]; 2723 } 2724 }; 2725 2726 private ProcessErrorStateInfo(Parcel source) { 2727 readFromParcel(source); 2728 } 2729 } 2730 2731 /** 2732 * Returns a list of any processes that are currently in an error condition. The result 2733 * will be null if all processes are running properly at this time. 2734 * 2735 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2736 * current error conditions (it will not return an empty list). This list ordering is not 2737 * specified. 2738 */ 2739 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2740 try { 2741 return getService().getProcessesInErrorState(); 2742 } catch (RemoteException e) { 2743 throw e.rethrowFromSystemServer(); 2744 } 2745 } 2746 2747 /** 2748 * Information you can retrieve about a running process. 2749 */ 2750 public static class RunningAppProcessInfo implements Parcelable { 2751 /** 2752 * The name of the process that this object is associated with 2753 */ 2754 public String processName; 2755 2756 /** 2757 * The pid of this process; 0 if none 2758 */ 2759 public int pid; 2760 2761 /** 2762 * The user id of this process. 2763 */ 2764 public int uid; 2765 2766 /** 2767 * All packages that have been loaded into the process. 2768 */ 2769 public String pkgList[]; 2770 2771 /** 2772 * Constant for {@link #flags}: this is an app that is unable to 2773 * correctly save its state when going to the background, 2774 * so it can not be killed while in the background. 2775 * @hide 2776 */ 2777 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2778 2779 /** 2780 * Constant for {@link #flags}: this process is associated with a 2781 * persistent system app. 2782 * @hide 2783 */ 2784 public static final int FLAG_PERSISTENT = 1<<1; 2785 2786 /** 2787 * Constant for {@link #flags}: this process is associated with a 2788 * persistent system app. 2789 * @hide 2790 */ 2791 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2792 2793 /** 2794 * Flags of information. May be any of 2795 * {@link #FLAG_CANT_SAVE_STATE}. 2796 * @hide 2797 */ 2798 public int flags; 2799 2800 /** 2801 * Last memory trim level reported to the process: corresponds to 2802 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2803 * ComponentCallbacks2.onTrimMemory(int)}. 2804 */ 2805 public int lastTrimLevel; 2806 2807 /** 2808 * Constant for {@link #importance}: This process is running the 2809 * foreground UI; that is, it is the thing currently at the top of the screen 2810 * that the user is interacting with. 2811 */ 2812 public static final int IMPORTANCE_FOREGROUND = 100; 2813 2814 /** 2815 * Constant for {@link #importance}: This process is running a foreground 2816 * service, for example to perform music playback even while the user is 2817 * not immediately in the app. This generally indicates that the process 2818 * is doing something the user actively cares about. 2819 */ 2820 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2821 2822 /** 2823 * Constant for {@link #importance}: This process is running the foreground 2824 * UI, but the device is asleep so it is not visible to the user. This means 2825 * the user is not really aware of the process, because they can not see or 2826 * interact with it, but it is quite important because it what they expect to 2827 * return to once unlocking the device. 2828 */ 2829 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2830 2831 /** 2832 * Constant for {@link #importance}: This process is running something 2833 * that is actively visible to the user, though not in the immediate 2834 * foreground. This may be running a window that is behind the current 2835 * foreground (so paused and with its state saved, not interacting with 2836 * the user, but visible to them to some degree); it may also be running 2837 * other services under the system's control that it inconsiders important. 2838 */ 2839 public static final int IMPORTANCE_VISIBLE = 200; 2840 2841 /** 2842 * Constant for {@link #importance}: This process is not something the user 2843 * is directly aware of, but is otherwise perceptable to them to some degree. 2844 */ 2845 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2846 2847 /** 2848 * Constant for {@link #importance}: This process is running an 2849 * application that can not save its state, and thus can't be killed 2850 * while in the background. 2851 * @hide 2852 */ 2853 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2854 2855 /** 2856 * Constant for {@link #importance}: This process is contains services 2857 * that should remain running. These are background services apps have 2858 * started, not something the user is aware of, so they may be killed by 2859 * the system relatively freely (though it is generally desired that they 2860 * stay running as long as they want to). 2861 */ 2862 public static final int IMPORTANCE_SERVICE = 300; 2863 2864 /** 2865 * Constant for {@link #importance}: This process process contains 2866 * background code that is expendable. 2867 */ 2868 public static final int IMPORTANCE_BACKGROUND = 400; 2869 2870 /** 2871 * Constant for {@link #importance}: This process is empty of any 2872 * actively running code. 2873 */ 2874 public static final int IMPORTANCE_EMPTY = 500; 2875 2876 /** 2877 * Constant for {@link #importance}: This process does not exist. 2878 */ 2879 public static final int IMPORTANCE_GONE = 1000; 2880 2881 /** @hide */ 2882 public static int procStateToImportance(int procState) { 2883 if (procState == PROCESS_STATE_NONEXISTENT) { 2884 return IMPORTANCE_GONE; 2885 } else if (procState >= PROCESS_STATE_HOME) { 2886 return IMPORTANCE_BACKGROUND; 2887 } else if (procState >= PROCESS_STATE_SERVICE) { 2888 return IMPORTANCE_SERVICE; 2889 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2890 return IMPORTANCE_CANT_SAVE_STATE; 2891 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2892 return IMPORTANCE_PERCEPTIBLE; 2893 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2894 return IMPORTANCE_VISIBLE; 2895 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2896 return IMPORTANCE_TOP_SLEEPING; 2897 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2898 return IMPORTANCE_FOREGROUND_SERVICE; 2899 } else { 2900 return IMPORTANCE_FOREGROUND; 2901 } 2902 } 2903 2904 /** @hide */ 2905 public static int importanceToProcState(int importance) { 2906 if (importance == IMPORTANCE_GONE) { 2907 return PROCESS_STATE_NONEXISTENT; 2908 } else if (importance >= IMPORTANCE_BACKGROUND) { 2909 return PROCESS_STATE_HOME; 2910 } else if (importance >= IMPORTANCE_SERVICE) { 2911 return PROCESS_STATE_SERVICE; 2912 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 2913 return PROCESS_STATE_HEAVY_WEIGHT; 2914 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 2915 return PROCESS_STATE_IMPORTANT_BACKGROUND; 2916 } else if (importance >= IMPORTANCE_VISIBLE) { 2917 return PROCESS_STATE_IMPORTANT_FOREGROUND; 2918 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 2919 return PROCESS_STATE_TOP_SLEEPING; 2920 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 2921 return PROCESS_STATE_FOREGROUND_SERVICE; 2922 } else { 2923 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 2924 } 2925 } 2926 2927 /** 2928 * The relative importance level that the system places on this 2929 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2930 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2931 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2932 * constants are numbered so that "more important" values are always 2933 * smaller than "less important" values. 2934 */ 2935 public int importance; 2936 2937 /** 2938 * An additional ordering within a particular {@link #importance} 2939 * category, providing finer-grained information about the relative 2940 * utility of processes within a category. This number means nothing 2941 * except that a smaller values are more recently used (and thus 2942 * more important). Currently an LRU value is only maintained for 2943 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2944 * be maintained in the future. 2945 */ 2946 public int lru; 2947 2948 /** 2949 * Constant for {@link #importanceReasonCode}: nothing special has 2950 * been specified for the reason for this level. 2951 */ 2952 public static final int REASON_UNKNOWN = 0; 2953 2954 /** 2955 * Constant for {@link #importanceReasonCode}: one of the application's 2956 * content providers is being used by another process. The pid of 2957 * the client process is in {@link #importanceReasonPid} and the 2958 * target provider in this process is in 2959 * {@link #importanceReasonComponent}. 2960 */ 2961 public static final int REASON_PROVIDER_IN_USE = 1; 2962 2963 /** 2964 * Constant for {@link #importanceReasonCode}: one of the application's 2965 * content providers is being used by another process. The pid of 2966 * the client process is in {@link #importanceReasonPid} and the 2967 * target provider in this process is in 2968 * {@link #importanceReasonComponent}. 2969 */ 2970 public static final int REASON_SERVICE_IN_USE = 2; 2971 2972 /** 2973 * The reason for {@link #importance}, if any. 2974 */ 2975 public int importanceReasonCode; 2976 2977 /** 2978 * For the specified values of {@link #importanceReasonCode}, this 2979 * is the process ID of the other process that is a client of this 2980 * process. This will be 0 if no other process is using this one. 2981 */ 2982 public int importanceReasonPid; 2983 2984 /** 2985 * For the specified values of {@link #importanceReasonCode}, this 2986 * is the name of the component that is being used in this process. 2987 */ 2988 public ComponentName importanceReasonComponent; 2989 2990 /** 2991 * When {@link #importanceReasonPid} is non-0, this is the importance 2992 * of the other pid. @hide 2993 */ 2994 public int importanceReasonImportance; 2995 2996 /** 2997 * Current process state, as per PROCESS_STATE_* constants. 2998 * @hide 2999 */ 3000 public int processState; 3001 3002 public RunningAppProcessInfo() { 3003 importance = IMPORTANCE_FOREGROUND; 3004 importanceReasonCode = REASON_UNKNOWN; 3005 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3006 } 3007 3008 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3009 processName = pProcessName; 3010 pid = pPid; 3011 pkgList = pArr; 3012 } 3013 3014 public int describeContents() { 3015 return 0; 3016 } 3017 3018 public void writeToParcel(Parcel dest, int flags) { 3019 dest.writeString(processName); 3020 dest.writeInt(pid); 3021 dest.writeInt(uid); 3022 dest.writeStringArray(pkgList); 3023 dest.writeInt(this.flags); 3024 dest.writeInt(lastTrimLevel); 3025 dest.writeInt(importance); 3026 dest.writeInt(lru); 3027 dest.writeInt(importanceReasonCode); 3028 dest.writeInt(importanceReasonPid); 3029 ComponentName.writeToParcel(importanceReasonComponent, dest); 3030 dest.writeInt(importanceReasonImportance); 3031 dest.writeInt(processState); 3032 } 3033 3034 public void readFromParcel(Parcel source) { 3035 processName = source.readString(); 3036 pid = source.readInt(); 3037 uid = source.readInt(); 3038 pkgList = source.readStringArray(); 3039 flags = source.readInt(); 3040 lastTrimLevel = source.readInt(); 3041 importance = source.readInt(); 3042 lru = source.readInt(); 3043 importanceReasonCode = source.readInt(); 3044 importanceReasonPid = source.readInt(); 3045 importanceReasonComponent = ComponentName.readFromParcel(source); 3046 importanceReasonImportance = source.readInt(); 3047 processState = source.readInt(); 3048 } 3049 3050 public static final Creator<RunningAppProcessInfo> CREATOR = 3051 new Creator<RunningAppProcessInfo>() { 3052 public RunningAppProcessInfo createFromParcel(Parcel source) { 3053 return new RunningAppProcessInfo(source); 3054 } 3055 public RunningAppProcessInfo[] newArray(int size) { 3056 return new RunningAppProcessInfo[size]; 3057 } 3058 }; 3059 3060 private RunningAppProcessInfo(Parcel source) { 3061 readFromParcel(source); 3062 } 3063 } 3064 3065 /** 3066 * Returns a list of application processes installed on external media 3067 * that are running on the device. 3068 * 3069 * <p><b>Note: this method is only intended for debugging or building 3070 * a user-facing process management UI.</b></p> 3071 * 3072 * @return Returns a list of ApplicationInfo records, or null if none 3073 * This list ordering is not specified. 3074 * @hide 3075 */ 3076 public List<ApplicationInfo> getRunningExternalApplications() { 3077 try { 3078 return getService().getRunningExternalApplications(); 3079 } catch (RemoteException e) { 3080 throw e.rethrowFromSystemServer(); 3081 } 3082 } 3083 3084 /** 3085 * Sets the memory trim mode for a process and schedules a memory trim operation. 3086 * 3087 * <p><b>Note: this method is only intended for testing framework.</b></p> 3088 * 3089 * @return Returns true if successful. 3090 * @hide 3091 */ 3092 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3093 try { 3094 return getService().setProcessMemoryTrimLevel(process, userId, 3095 level); 3096 } catch (RemoteException e) { 3097 throw e.rethrowFromSystemServer(); 3098 } 3099 } 3100 3101 /** 3102 * Returns a list of application processes that are running on the device. 3103 * 3104 * <p><b>Note: this method is only intended for debugging or building 3105 * a user-facing process management UI.</b></p> 3106 * 3107 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3108 * running processes (it will not return an empty list). This list ordering is not 3109 * specified. 3110 */ 3111 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3112 try { 3113 return getService().getRunningAppProcesses(); 3114 } catch (RemoteException e) { 3115 throw e.rethrowFromSystemServer(); 3116 } 3117 } 3118 3119 /** 3120 * Return the importance of a given package name, based on the processes that are 3121 * currently running. The return value is one of the importance constants defined 3122 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3123 * processes that this package has code running inside of. If there are no processes 3124 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3125 * @hide 3126 */ 3127 @SystemApi @TestApi 3128 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3129 public int getPackageImportance(String packageName) { 3130 try { 3131 int procState = getService().getPackageProcessState(packageName, 3132 mContext.getOpPackageName()); 3133 return RunningAppProcessInfo.procStateToImportance(procState); 3134 } catch (RemoteException e) { 3135 throw e.rethrowFromSystemServer(); 3136 } 3137 } 3138 3139 /** 3140 * Callback to get reports about changes to the importance of a uid. Use with 3141 * {@link #addOnUidImportanceListener}. 3142 * @hide 3143 */ 3144 @SystemApi @TestApi 3145 public interface OnUidImportanceListener { 3146 /** 3147 * The importance if a given uid has changed. Will be one of the importance 3148 * values in {@link RunningAppProcessInfo}; 3149 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3150 * when the uid is no longer running at all. This callback will happen on a thread 3151 * from a thread pool, not the main UI thread. 3152 * @param uid The uid whose importance has changed. 3153 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3154 */ 3155 void onUidImportance(int uid, int importance); 3156 } 3157 3158 /** 3159 * Start monitoring changes to the imoportance of uids running in the system. 3160 * @param listener The listener callback that will receive change reports. 3161 * @param importanceCutpoint The level of importance in which the caller is interested 3162 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3163 * is used here, you will receive a call each time a uids importance transitions between 3164 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3165 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3166 * 3167 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3168 * permission to use this feature.</p> 3169 * 3170 * @throws IllegalArgumentException If the listener is already registered. 3171 * @throws SecurityException If the caller does not hold 3172 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3173 * @hide 3174 */ 3175 @SystemApi @TestApi 3176 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3177 int importanceCutpoint) { 3178 synchronized (this) { 3179 if (mImportanceListeners.containsKey(listener)) { 3180 throw new IllegalArgumentException("Listener already registered: " + listener); 3181 } 3182 // TODO: implement the cut point in the system process to avoid IPCs. 3183 UidObserver observer = new UidObserver(listener); 3184 try { 3185 getService().registerUidObserver(observer, 3186 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3187 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3188 mContext.getOpPackageName()); 3189 } catch (RemoteException e) { 3190 throw e.rethrowFromSystemServer(); 3191 } 3192 mImportanceListeners.put(listener, observer); 3193 } 3194 } 3195 3196 /** 3197 * Remove an importance listener that was previously registered with 3198 * {@link #addOnUidImportanceListener}. 3199 * 3200 * @throws IllegalArgumentException If the listener is not registered. 3201 * @hide 3202 */ 3203 @SystemApi @TestApi 3204 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3205 synchronized (this) { 3206 UidObserver observer = mImportanceListeners.remove(listener); 3207 if (observer == null) { 3208 throw new IllegalArgumentException("Listener not registered: " + listener); 3209 } 3210 try { 3211 getService().unregisterUidObserver(observer); 3212 } catch (RemoteException e) { 3213 throw e.rethrowFromSystemServer(); 3214 } 3215 } 3216 } 3217 3218 /** 3219 * Return global memory state information for the calling process. This 3220 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3221 * only fields that will be filled in are 3222 * {@link RunningAppProcessInfo#pid}, 3223 * {@link RunningAppProcessInfo#uid}, 3224 * {@link RunningAppProcessInfo#lastTrimLevel}, 3225 * {@link RunningAppProcessInfo#importance}, 3226 * {@link RunningAppProcessInfo#lru}, and 3227 * {@link RunningAppProcessInfo#importanceReasonCode}. 3228 */ 3229 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3230 try { 3231 getService().getMyMemoryState(outState); 3232 } catch (RemoteException e) { 3233 throw e.rethrowFromSystemServer(); 3234 } 3235 } 3236 3237 /** 3238 * Return information about the memory usage of one or more processes. 3239 * 3240 * <p><b>Note: this method is only intended for debugging or building 3241 * a user-facing process management UI.</b></p> 3242 * 3243 * @param pids The pids of the processes whose memory usage is to be 3244 * retrieved. 3245 * @return Returns an array of memory information, one for each 3246 * requested pid. 3247 */ 3248 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3249 try { 3250 return getService().getProcessMemoryInfo(pids); 3251 } catch (RemoteException e) { 3252 throw e.rethrowFromSystemServer(); 3253 } 3254 } 3255 3256 /** 3257 * @deprecated This is now just a wrapper for 3258 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3259 * is no longer available to applications because it allows them to 3260 * break other applications by removing their alarms, stopping their 3261 * services, etc. 3262 */ 3263 @Deprecated 3264 public void restartPackage(String packageName) { 3265 killBackgroundProcesses(packageName); 3266 } 3267 3268 /** 3269 * Have the system immediately kill all background processes associated 3270 * with the given package. This is the same as the kernel killing those 3271 * processes to reclaim memory; the system will take care of restarting 3272 * these processes in the future as needed. 3273 * 3274 * <p>You must hold the permission 3275 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3276 * call this method. 3277 * 3278 * @param packageName The name of the package whose processes are to 3279 * be killed. 3280 */ 3281 public void killBackgroundProcesses(String packageName) { 3282 try { 3283 getService().killBackgroundProcesses(packageName, 3284 UserHandle.myUserId()); 3285 } catch (RemoteException e) { 3286 throw e.rethrowFromSystemServer(); 3287 } 3288 } 3289 3290 /** 3291 * Kills the specified UID. 3292 * @param uid The UID to kill. 3293 * @param reason The reason for the kill. 3294 * 3295 * @hide 3296 */ 3297 @SystemApi 3298 @RequiresPermission(Manifest.permission.KILL_UID) 3299 public void killUid(int uid, String reason) { 3300 try { 3301 getService().killUid(UserHandle.getAppId(uid), 3302 UserHandle.getUserId(uid), reason); 3303 } catch (RemoteException e) { 3304 throw e.rethrowFromSystemServer(); 3305 } 3306 } 3307 3308 /** 3309 * Have the system perform a force stop of everything associated with 3310 * the given application package. All processes that share its uid 3311 * will be killed, all services it has running stopped, all activities 3312 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3313 * broadcast will be sent, so that any of its registered alarms can 3314 * be stopped, notifications removed, etc. 3315 * 3316 * <p>You must hold the permission 3317 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3318 * call this method. 3319 * 3320 * @param packageName The name of the package to be stopped. 3321 * @param userId The user for which the running package is to be stopped. 3322 * 3323 * @hide This is not available to third party applications due to 3324 * it allowing them to break other applications by stopping their 3325 * services, removing their alarms, etc. 3326 */ 3327 public void forceStopPackageAsUser(String packageName, int userId) { 3328 try { 3329 getService().forceStopPackage(packageName, userId); 3330 } catch (RemoteException e) { 3331 throw e.rethrowFromSystemServer(); 3332 } 3333 } 3334 3335 /** 3336 * @see #forceStopPackageAsUser(String, int) 3337 * @hide 3338 */ 3339 public void forceStopPackage(String packageName) { 3340 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3341 } 3342 3343 /** 3344 * Get the device configuration attributes. 3345 */ 3346 public ConfigurationInfo getDeviceConfigurationInfo() { 3347 try { 3348 return getService().getDeviceConfigurationInfo(); 3349 } catch (RemoteException e) { 3350 throw e.rethrowFromSystemServer(); 3351 } 3352 } 3353 3354 /** 3355 * Get the preferred density of icons for the launcher. This is used when 3356 * custom drawables are created (e.g., for shortcuts). 3357 * 3358 * @return density in terms of DPI 3359 */ 3360 public int getLauncherLargeIconDensity() { 3361 final Resources res = mContext.getResources(); 3362 final int density = res.getDisplayMetrics().densityDpi; 3363 final int sw = res.getConfiguration().smallestScreenWidthDp; 3364 3365 if (sw < 600) { 3366 // Smaller than approx 7" tablets, use the regular icon size. 3367 return density; 3368 } 3369 3370 switch (density) { 3371 case DisplayMetrics.DENSITY_LOW: 3372 return DisplayMetrics.DENSITY_MEDIUM; 3373 case DisplayMetrics.DENSITY_MEDIUM: 3374 return DisplayMetrics.DENSITY_HIGH; 3375 case DisplayMetrics.DENSITY_TV: 3376 return DisplayMetrics.DENSITY_XHIGH; 3377 case DisplayMetrics.DENSITY_HIGH: 3378 return DisplayMetrics.DENSITY_XHIGH; 3379 case DisplayMetrics.DENSITY_XHIGH: 3380 return DisplayMetrics.DENSITY_XXHIGH; 3381 case DisplayMetrics.DENSITY_XXHIGH: 3382 return DisplayMetrics.DENSITY_XHIGH * 2; 3383 default: 3384 // The density is some abnormal value. Return some other 3385 // abnormal value that is a reasonable scaling of it. 3386 return (int)((density*1.5f)+.5f); 3387 } 3388 } 3389 3390 /** 3391 * Get the preferred launcher icon size. This is used when custom drawables 3392 * are created (e.g., for shortcuts). 3393 * 3394 * @return dimensions of square icons in terms of pixels 3395 */ 3396 public int getLauncherLargeIconSize() { 3397 return getLauncherLargeIconSizeInner(mContext); 3398 } 3399 3400 static int getLauncherLargeIconSizeInner(Context context) { 3401 final Resources res = context.getResources(); 3402 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3403 final int sw = res.getConfiguration().smallestScreenWidthDp; 3404 3405 if (sw < 600) { 3406 // Smaller than approx 7" tablets, use the regular icon size. 3407 return size; 3408 } 3409 3410 final int density = res.getDisplayMetrics().densityDpi; 3411 3412 switch (density) { 3413 case DisplayMetrics.DENSITY_LOW: 3414 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3415 case DisplayMetrics.DENSITY_MEDIUM: 3416 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3417 case DisplayMetrics.DENSITY_TV: 3418 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3419 case DisplayMetrics.DENSITY_HIGH: 3420 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3421 case DisplayMetrics.DENSITY_XHIGH: 3422 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3423 case DisplayMetrics.DENSITY_XXHIGH: 3424 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3425 default: 3426 // The density is some abnormal value. Return some other 3427 // abnormal value that is a reasonable scaling of it. 3428 return (int)((size*1.5f) + .5f); 3429 } 3430 } 3431 3432 /** 3433 * Returns "true" if the user interface is currently being messed with 3434 * by a monkey. 3435 */ 3436 public static boolean isUserAMonkey() { 3437 try { 3438 return getService().isUserAMonkey(); 3439 } catch (RemoteException e) { 3440 throw e.rethrowFromSystemServer(); 3441 } 3442 } 3443 3444 /** 3445 * Returns "true" if device is running in a test harness. 3446 */ 3447 public static boolean isRunningInTestHarness() { 3448 return SystemProperties.getBoolean("ro.test_harness", false); 3449 } 3450 3451 /** 3452 * Returns the launch count of each installed package. 3453 * 3454 * @hide 3455 */ 3456 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3457 try { 3458 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3459 ServiceManager.getService("usagestats")); 3460 if (usageStatsService == null) { 3461 return new HashMap<String, Integer>(); 3462 } 3463 3464 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3465 ActivityThread.currentPackageName()); 3466 if (allPkgUsageStats == null) { 3467 return new HashMap<String, Integer>(); 3468 } 3469 3470 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3471 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3472 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3473 } 3474 3475 return launchCounts; 3476 } catch (RemoteException e) { 3477 Log.w(TAG, "Could not query launch counts", e); 3478 return new HashMap<String, Integer>(); 3479 } 3480 }*/ 3481 3482 /** @hide */ 3483 public static int checkComponentPermission(String permission, int uid, 3484 int owningUid, boolean exported) { 3485 // Root, system server get to do everything. 3486 final int appId = UserHandle.getAppId(uid); 3487 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3488 return PackageManager.PERMISSION_GRANTED; 3489 } 3490 // Isolated processes don't get any permissions. 3491 if (UserHandle.isIsolated(uid)) { 3492 return PackageManager.PERMISSION_DENIED; 3493 } 3494 // If there is a uid that owns whatever is being accessed, it has 3495 // blanket access to it regardless of the permissions it requires. 3496 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3497 return PackageManager.PERMISSION_GRANTED; 3498 } 3499 // If the target is not exported, then nobody else can get to it. 3500 if (!exported) { 3501 /* 3502 RuntimeException here = new RuntimeException("here"); 3503 here.fillInStackTrace(); 3504 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3505 here); 3506 */ 3507 return PackageManager.PERMISSION_DENIED; 3508 } 3509 if (permission == null) { 3510 return PackageManager.PERMISSION_GRANTED; 3511 } 3512 try { 3513 return AppGlobals.getPackageManager() 3514 .checkUidPermission(permission, uid); 3515 } catch (RemoteException e) { 3516 throw e.rethrowFromSystemServer(); 3517 } 3518 } 3519 3520 /** @hide */ 3521 public static int checkUidPermission(String permission, int uid) { 3522 try { 3523 return AppGlobals.getPackageManager() 3524 .checkUidPermission(permission, uid); 3525 } catch (RemoteException e) { 3526 throw e.rethrowFromSystemServer(); 3527 } 3528 } 3529 3530 /** 3531 * @hide 3532 * Helper for dealing with incoming user arguments to system service calls. 3533 * Takes care of checking permissions and converting USER_CURRENT to the 3534 * actual current user. 3535 * 3536 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3537 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3538 * @param userId The user id argument supplied by the caller -- this is the user 3539 * they want to run as. 3540 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3541 * to get a USER_ALL returned and deal with it correctly. If false, 3542 * an exception will be thrown if USER_ALL is supplied. 3543 * @param requireFull If true, the caller must hold 3544 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3545 * different user than their current process; otherwise they must hold 3546 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3547 * @param name Optional textual name of the incoming call; only for generating error messages. 3548 * @param callerPackage Optional package name of caller; only for error messages. 3549 * 3550 * @return Returns the user ID that the call should run as. Will always be a concrete 3551 * user number, unless <var>allowAll</var> is true in which case it could also be 3552 * USER_ALL. 3553 */ 3554 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3555 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3556 if (UserHandle.getUserId(callingUid) == userId) { 3557 return userId; 3558 } 3559 try { 3560 return getService().handleIncomingUser(callingPid, 3561 callingUid, userId, allowAll, requireFull, name, callerPackage); 3562 } catch (RemoteException e) { 3563 throw e.rethrowFromSystemServer(); 3564 } 3565 } 3566 3567 /** 3568 * Gets the userId of the current foreground user. Requires system permissions. 3569 * @hide 3570 */ 3571 @SystemApi 3572 public static int getCurrentUser() { 3573 UserInfo ui; 3574 try { 3575 ui = getService().getCurrentUser(); 3576 return ui != null ? ui.id : 0; 3577 } catch (RemoteException e) { 3578 throw e.rethrowFromSystemServer(); 3579 } 3580 } 3581 3582 /** 3583 * @param userid the user's id. Zero indicates the default user. 3584 * @hide 3585 */ 3586 public boolean switchUser(int userid) { 3587 try { 3588 return getService().switchUser(userid); 3589 } catch (RemoteException e) { 3590 throw e.rethrowFromSystemServer(); 3591 } 3592 } 3593 3594 /** 3595 * Logs out current current foreground user by switching to the system user and stopping the 3596 * user being switched from. 3597 * @hide 3598 */ 3599 public static void logoutCurrentUser() { 3600 int currentUser = ActivityManager.getCurrentUser(); 3601 if (currentUser != UserHandle.USER_SYSTEM) { 3602 try { 3603 getService().switchUser(UserHandle.USER_SYSTEM); 3604 getService().stopUser(currentUser, /* force= */ false, null); 3605 } catch (RemoteException e) { 3606 e.rethrowFromSystemServer(); 3607 } 3608 } 3609 } 3610 3611 /** {@hide} */ 3612 public static final int FLAG_OR_STOPPED = 1 << 0; 3613 /** {@hide} */ 3614 public static final int FLAG_AND_LOCKED = 1 << 1; 3615 /** {@hide} */ 3616 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3617 /** {@hide} */ 3618 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3619 3620 /** 3621 * Return whether the given user is actively running. This means that 3622 * the user is in the "started" state, not "stopped" -- it is currently 3623 * allowed to run code through scheduled alarms, receiving broadcasts, 3624 * etc. A started user may be either the current foreground user or a 3625 * background user; the result here does not distinguish between the two. 3626 * @param userId the user's id. Zero indicates the default user. 3627 * @hide 3628 */ 3629 public boolean isUserRunning(int userId) { 3630 try { 3631 return getService().isUserRunning(userId, 0); 3632 } catch (RemoteException e) { 3633 throw e.rethrowFromSystemServer(); 3634 } 3635 } 3636 3637 /** {@hide} */ 3638 public boolean isVrModePackageEnabled(ComponentName component) { 3639 try { 3640 return getService().isVrModePackageEnabled(component); 3641 } catch (RemoteException e) { 3642 throw e.rethrowFromSystemServer(); 3643 } 3644 } 3645 3646 /** 3647 * Perform a system dump of various state associated with the given application 3648 * package name. This call blocks while the dump is being performed, so should 3649 * not be done on a UI thread. The data will be written to the given file 3650 * descriptor as text. An application must hold the 3651 * {@link android.Manifest.permission#DUMP} permission to make this call. 3652 * @param fd The file descriptor that the dump should be written to. The file 3653 * descriptor is <em>not</em> closed by this function; the caller continues to 3654 * own it. 3655 * @param packageName The name of the package that is to be dumped. 3656 */ 3657 public void dumpPackageState(FileDescriptor fd, String packageName) { 3658 dumpPackageStateStatic(fd, packageName); 3659 } 3660 3661 /** 3662 * @hide 3663 */ 3664 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3665 FileOutputStream fout = new FileOutputStream(fd); 3666 PrintWriter pw = new FastPrintWriter(fout); 3667 dumpService(pw, fd, "package", new String[] { packageName }); 3668 pw.println(); 3669 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3670 "-a", "package", packageName }); 3671 pw.println(); 3672 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3673 pw.println(); 3674 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3675 pw.println(); 3676 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3677 pw.println(); 3678 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3679 pw.flush(); 3680 } 3681 3682 /** 3683 * @hide 3684 */ 3685 public static boolean isSystemReady() { 3686 if (!sSystemReady) { 3687 if (ActivityThread.isSystem()) { 3688 sSystemReady = 3689 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3690 } else { 3691 // Since this is being called from outside system server, system should be 3692 // ready by now. 3693 sSystemReady = true; 3694 } 3695 } 3696 return sSystemReady; 3697 } 3698 3699 /** 3700 * @hide 3701 */ 3702 public static void broadcastStickyIntent(Intent intent, int userId) { 3703 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3704 } 3705 3706 /** 3707 * Convenience for sending a sticky broadcast. For internal use only. 3708 * 3709 * @hide 3710 */ 3711 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3712 try { 3713 getService().broadcastIntent( 3714 null, intent, null, null, Activity.RESULT_OK, null, null, 3715 null /*permission*/, appOp, null, false, true, userId); 3716 } catch (RemoteException ex) { 3717 } 3718 } 3719 3720 /** 3721 * @hide 3722 */ 3723 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3724 String tag) { 3725 try { 3726 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3727 sourceUid, sourcePkg, tag); 3728 } catch (RemoteException ex) { 3729 } 3730 } 3731 3732 /** 3733 * @hide 3734 */ 3735 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3736 try { 3737 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3738 } catch (RemoteException ex) { 3739 } 3740 } 3741 3742 /** 3743 * @hide 3744 */ 3745 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3746 try { 3747 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3748 } catch (RemoteException ex) { 3749 } 3750 } 3751 3752 /** 3753 * @hide 3754 */ 3755 public static IActivityManager getService() { 3756 return IActivityManagerSingleton.get(); 3757 } 3758 3759 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3760 new Singleton<IActivityManager>() { 3761 @Override 3762 protected IActivityManager create() { 3763 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3764 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3765 return am; 3766 } 3767 }; 3768 3769 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3770 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3771 IBinder service = ServiceManager.checkService(name); 3772 if (service == null) { 3773 pw.println(" (Service not found)"); 3774 return; 3775 } 3776 TransferPipe tp = null; 3777 try { 3778 pw.flush(); 3779 tp = new TransferPipe(); 3780 tp.setBufferPrefix(" "); 3781 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3782 tp.go(fd, 10000); 3783 } catch (Throwable e) { 3784 if (tp != null) { 3785 tp.kill(); 3786 } 3787 pw.println("Failure dumping service:"); 3788 e.printStackTrace(pw); 3789 } 3790 } 3791 3792 /** 3793 * Request that the system start watching for the calling process to exceed a pss 3794 * size as given here. Once called, the system will look for any occasions where it 3795 * sees the associated process with a larger pss size and, when this happens, automatically 3796 * pull a heap dump from it and allow the user to share the data. Note that this request 3797 * continues running even if the process is killed and restarted. To remove the watch, 3798 * use {@link #clearWatchHeapLimit()}. 3799 * 3800 * <p>This API only work if the calling process has been marked as 3801 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3802 * (userdebug or eng) build.</p> 3803 * 3804 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3805 * handle heap limit reports themselves.</p> 3806 * 3807 * @param pssSize The size in bytes to set the limit at. 3808 */ 3809 public void setWatchHeapLimit(long pssSize) { 3810 try { 3811 getService().setDumpHeapDebugLimit(null, 0, pssSize, 3812 mContext.getPackageName()); 3813 } catch (RemoteException e) { 3814 throw e.rethrowFromSystemServer(); 3815 } 3816 } 3817 3818 /** 3819 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3820 * If your package has an activity handling this action, it will be launched with the 3821 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3822 * match the activty must support this action and a MIME type of "*/*". 3823 */ 3824 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3825 3826 /** 3827 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3828 */ 3829 public void clearWatchHeapLimit() { 3830 try { 3831 getService().setDumpHeapDebugLimit(null, 0, 0, null); 3832 } catch (RemoteException e) { 3833 throw e.rethrowFromSystemServer(); 3834 } 3835 } 3836 3837 /** 3838 * @hide 3839 */ 3840 public void startLockTaskMode(int taskId) { 3841 try { 3842 getService().startLockTaskModeById(taskId); 3843 } catch (RemoteException e) { 3844 throw e.rethrowFromSystemServer(); 3845 } 3846 } 3847 3848 /** 3849 * @hide 3850 */ 3851 public void stopLockTaskMode() { 3852 try { 3853 getService().stopLockTaskMode(); 3854 } catch (RemoteException e) { 3855 throw e.rethrowFromSystemServer(); 3856 } 3857 } 3858 3859 /** 3860 * Return whether currently in lock task mode. When in this mode 3861 * no new tasks can be created or switched to. 3862 * 3863 * @see Activity#startLockTask() 3864 * 3865 * @deprecated Use {@link #getLockTaskModeState} instead. 3866 */ 3867 @Deprecated 3868 public boolean isInLockTaskMode() { 3869 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3870 } 3871 3872 /** 3873 * Return the current state of task locking. The three possible outcomes 3874 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3875 * and {@link #LOCK_TASK_MODE_PINNED}. 3876 * 3877 * @see Activity#startLockTask() 3878 */ 3879 public int getLockTaskModeState() { 3880 try { 3881 return getService().getLockTaskModeState(); 3882 } catch (RemoteException e) { 3883 throw e.rethrowFromSystemServer(); 3884 } 3885 } 3886 3887 /** 3888 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 3889 * thread can be a VR thread in a process at a time, and that thread may be subject to 3890 * restrictions on the amount of time it can run. 3891 * 3892 * To reset the VR thread for an application, a tid of 0 can be passed. 3893 * 3894 * @see android.os.Process#myTid() 3895 * @param tid tid of the VR thread 3896 */ 3897 public static void setVrThread(int tid) { 3898 try { 3899 getService().setVrThread(tid); 3900 } catch (RemoteException e) { 3901 // pass 3902 } 3903 } 3904 3905 /** 3906 * The AppTask allows you to manage your own application's tasks. 3907 * See {@link android.app.ActivityManager#getAppTasks()} 3908 */ 3909 public static class AppTask { 3910 private IAppTask mAppTaskImpl; 3911 3912 /** @hide */ 3913 public AppTask(IAppTask task) { 3914 mAppTaskImpl = task; 3915 } 3916 3917 /** 3918 * Finishes all activities in this task and removes it from the recent tasks list. 3919 */ 3920 public void finishAndRemoveTask() { 3921 try { 3922 mAppTaskImpl.finishAndRemoveTask(); 3923 } catch (RemoteException e) { 3924 throw e.rethrowFromSystemServer(); 3925 } 3926 } 3927 3928 /** 3929 * Get the RecentTaskInfo associated with this task. 3930 * 3931 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3932 */ 3933 public RecentTaskInfo getTaskInfo() { 3934 try { 3935 return mAppTaskImpl.getTaskInfo(); 3936 } catch (RemoteException e) { 3937 throw e.rethrowFromSystemServer(); 3938 } 3939 } 3940 3941 /** 3942 * Bring this task to the foreground. If it contains activities, they will be 3943 * brought to the foreground with it and their instances re-created if needed. 3944 * If it doesn't contain activities, the root activity of the task will be 3945 * re-launched. 3946 */ 3947 public void moveToFront() { 3948 try { 3949 mAppTaskImpl.moveToFront(); 3950 } catch (RemoteException e) { 3951 throw e.rethrowFromSystemServer(); 3952 } 3953 } 3954 3955 /** 3956 * Start an activity in this task. Brings the task to the foreground. If this task 3957 * is not currently active (that is, its id < 0), then a new activity for the given 3958 * Intent will be launched as the root of the task and the task brought to the 3959 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3960 * an activity to launch in a new task, then a new activity for the given Intent will 3961 * be launched on top of the task and the task brought to the foreground. If this 3962 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3963 * or would otherwise be launched in to a new task, then the activity not launched but 3964 * this task be brought to the foreground and a new intent delivered to the top 3965 * activity if appropriate. 3966 * 3967 * <p>In other words, you generally want to use an Intent here that does not specify 3968 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3969 * and let the system do the right thing.</p> 3970 * 3971 * @param intent The Intent describing the new activity to be launched on the task. 3972 * @param options Optional launch options. 3973 * 3974 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3975 */ 3976 public void startActivity(Context context, Intent intent, Bundle options) { 3977 ActivityThread thread = ActivityThread.currentActivityThread(); 3978 thread.getInstrumentation().execStartActivityFromAppTask(context, 3979 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3980 } 3981 3982 /** 3983 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3984 * Intent of this AppTask. 3985 * 3986 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3987 * be set; otherwise, it will be cleared. 3988 */ 3989 public void setExcludeFromRecents(boolean exclude) { 3990 try { 3991 mAppTaskImpl.setExcludeFromRecents(exclude); 3992 } catch (RemoteException e) { 3993 throw e.rethrowFromSystemServer(); 3994 } 3995 } 3996 } 3997} 3998