ActivityManager.java revision 1ca634a544a47193dd9e57f9b3eb3e42ab0dbbf1
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 final Context mContext; 91 private final Handler mHandler; 92 93 private static volatile boolean sSystemReady = false; 94 95 static final class UidObserver extends IUidObserver.Stub { 96 final OnUidImportanceListener mListener; 97 98 UidObserver(OnUidImportanceListener listener) { 99 mListener = listener; 100 } 101 102 @Override 103 public void onUidStateChanged(int uid, int procState) { 104 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 105 } 106 107 @Override 108 public void onUidGone(int uid, boolean disabled) { 109 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 110 } 111 112 @Override 113 public void onUidActive(int uid) { 114 } 115 116 @Override 117 public void onUidIdle(int uid, boolean disabled) { 118 } 119 } 120 121 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 122 123 /** 124 * Defines acceptable types of bugreports. 125 * @hide 126 */ 127 @Retention(RetentionPolicy.SOURCE) 128 @IntDef({ 129 BUGREPORT_OPTION_FULL, 130 BUGREPORT_OPTION_INTERACTIVE, 131 BUGREPORT_OPTION_REMOTE, 132 BUGREPORT_OPTION_WEAR 133 }) 134 public @interface BugreportMode {} 135 /** 136 * Takes a bugreport without user interference (and hence causing less 137 * interference to the system), but includes all sections. 138 * @hide 139 */ 140 public static final int BUGREPORT_OPTION_FULL = 0; 141 /** 142 * Allows user to monitor progress and enter additional data; might not include all 143 * sections. 144 * @hide 145 */ 146 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 147 /** 148 * Takes a bugreport requested remotely by administrator of the Device Owner app, 149 * not the device's user. 150 * @hide 151 */ 152 public static final int BUGREPORT_OPTION_REMOTE = 2; 153 /** 154 * Takes a bugreport on a wearable device. 155 * @hide 156 */ 157 public static final int BUGREPORT_OPTION_WEAR = 3; 158 159 /** 160 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 161 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 162 * uninstalled in lieu of the declaring one. The package named here must be 163 * signed with the same certificate as the one declaring the {@code <meta-data>}. 164 */ 165 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 166 167 /** 168 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 169 * @hide 170 */ 171 public static final int START_VOICE_HIDDEN_SESSION = -10; 172 173 /** 174 * Result for IActivityManager.startVoiceActivity: active session does not match 175 * the requesting token. 176 * @hide 177 */ 178 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 179 180 /** 181 * Result for IActivityManager.startActivity: trying to start a background user 182 * activity that shouldn't be displayed for all users. 183 * @hide 184 */ 185 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 186 187 /** 188 * Result for IActivityManager.startActivity: trying to start an activity under voice 189 * control when that activity does not support the VOICE category. 190 * @hide 191 */ 192 public static final int START_NOT_VOICE_COMPATIBLE = -7; 193 194 /** 195 * Result for IActivityManager.startActivity: an error where the 196 * start had to be canceled. 197 * @hide 198 */ 199 public static final int START_CANCELED = -6; 200 201 /** 202 * Result for IActivityManager.startActivity: an error where the 203 * thing being started is not an activity. 204 * @hide 205 */ 206 public static final int START_NOT_ACTIVITY = -5; 207 208 /** 209 * Result for IActivityManager.startActivity: an error where the 210 * caller does not have permission to start the activity. 211 * @hide 212 */ 213 public static final int START_PERMISSION_DENIED = -4; 214 215 /** 216 * Result for IActivityManager.startActivity: an error where the 217 * caller has requested both to forward a result and to receive 218 * a result. 219 * @hide 220 */ 221 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 222 223 /** 224 * Result for IActivityManager.startActivity: an error where the 225 * requested class is not found. 226 * @hide 227 */ 228 public static final int START_CLASS_NOT_FOUND = -2; 229 230 /** 231 * Result for IActivityManager.startActivity: an error where the 232 * given Intent could not be resolved to an activity. 233 * @hide 234 */ 235 public static final int START_INTENT_NOT_RESOLVED = -1; 236 237 /** 238 * Result for IActivityManaqer.startActivity: the activity was started 239 * successfully as normal. 240 * @hide 241 */ 242 public static final int START_SUCCESS = 0; 243 244 /** 245 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 246 * be executed if it is the recipient, and that is indeed the case. 247 * @hide 248 */ 249 public static final int START_RETURN_INTENT_TO_CALLER = 1; 250 251 /** 252 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 253 * a task was simply brought to the foreground. 254 * @hide 255 */ 256 public static final int START_TASK_TO_FRONT = 2; 257 258 /** 259 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 260 * the given Intent was given to the existing top activity. 261 * @hide 262 */ 263 public static final int START_DELIVERED_TO_TOP = 3; 264 265 /** 266 * Result for IActivityManaqer.startActivity: request was canceled because 267 * app switches are temporarily canceled to ensure the user's last request 268 * (such as pressing home) is performed. 269 * @hide 270 */ 271 public static final int START_SWITCHES_CANCELED = 4; 272 273 /** 274 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 275 * while in Lock Task Mode. 276 * @hide 277 */ 278 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 279 280 /** 281 * Flag for IActivityManaqer.startActivity: do special start mode where 282 * a new activity is launched only if it is needed. 283 * @hide 284 */ 285 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 286 287 /** 288 * Flag for IActivityManaqer.startActivity: launch the app for 289 * debugging. 290 * @hide 291 */ 292 public static final int START_FLAG_DEBUG = 1<<1; 293 294 /** 295 * Flag for IActivityManaqer.startActivity: launch the app for 296 * allocation tracking. 297 * @hide 298 */ 299 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 300 301 /** 302 * Flag for IActivityManaqer.startActivity: launch the app with 303 * native debugging support. 304 * @hide 305 */ 306 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 307 308 /** 309 * Result for IActivityManaqer.broadcastIntent: success! 310 * @hide 311 */ 312 public static final int BROADCAST_SUCCESS = 0; 313 314 /** 315 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 316 * a sticky intent without appropriate permission. 317 * @hide 318 */ 319 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 320 321 /** 322 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 323 * to a stopped user. Fail. 324 * @hide 325 */ 326 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 327 328 /** 329 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 330 * for a sendBroadcast operation. 331 * @hide 332 */ 333 public static final int INTENT_SENDER_BROADCAST = 1; 334 335 /** 336 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 337 * for a startActivity operation. 338 * @hide 339 */ 340 public static final int INTENT_SENDER_ACTIVITY = 2; 341 342 /** 343 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 344 * for an activity result operation. 345 * @hide 346 */ 347 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 348 349 /** 350 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 351 * for a startService operation. 352 * @hide 353 */ 354 public static final int INTENT_SENDER_SERVICE = 4; 355 356 /** @hide User operation call: success! */ 357 public static final int USER_OP_SUCCESS = 0; 358 359 /** @hide User operation call: given user id is not known. */ 360 public static final int USER_OP_UNKNOWN_USER = -1; 361 362 /** @hide User operation call: given user id is the current user, can't be stopped. */ 363 public static final int USER_OP_IS_CURRENT = -2; 364 365 /** @hide User operation call: system user can't be stopped. */ 366 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 367 368 /** @hide User operation call: one of related users cannot be stopped. */ 369 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 370 371 /** @hide Not a real process state. */ 372 public static final int PROCESS_STATE_UNKNOWN = -1; 373 374 /** @hide Process is a persistent system process. */ 375 public static final int PROCESS_STATE_PERSISTENT = 0; 376 377 /** @hide Process is a persistent system process and is doing UI. */ 378 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 379 380 /** @hide Process is hosting the current top activities. Note that this covers 381 * all activities that are visible to the user. */ 382 public static final int PROCESS_STATE_TOP = 2; 383 384 /** @hide Process is hosting a foreground service due to a system binding. */ 385 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 386 387 /** @hide Process is hosting a foreground service. */ 388 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 389 390 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 391 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 392 393 /** @hide Process is important to the user, and something they are aware of. */ 394 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 395 396 /** @hide Process is important to the user, but not something they are aware of. */ 397 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 398 399 /** @hide Process is in the background running a backup/restore operation. */ 400 public static final int PROCESS_STATE_BACKUP = 8; 401 402 /** @hide Process is in the background, but it can't restore its state so we want 403 * to try to avoid killing it. */ 404 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 405 406 /** @hide Process is in the background running a service. Unlike oom_adj, this level 407 * is used for both the normal running in background state and the executing 408 * operations state. */ 409 public static final int PROCESS_STATE_SERVICE = 10; 410 411 /** @hide Process is in the background running a receiver. Note that from the 412 * perspective of oom_adj receivers run at a higher foreground level, but for our 413 * prioritization here that is not necessary and putting them below services means 414 * many fewer changes in some process states as they receive broadcasts. */ 415 public static final int PROCESS_STATE_RECEIVER = 11; 416 417 /** @hide Process is in the background but hosts the home activity. */ 418 public static final int PROCESS_STATE_HOME = 12; 419 420 /** @hide Process is in the background but hosts the last shown activity. */ 421 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 422 423 /** @hide Process is being cached for later use and contains activities. */ 424 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 425 426 /** @hide Process is being cached for later use and is a client of another cached 427 * process that contains activities. */ 428 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 429 430 /** @hide Process is being cached for later use and is empty. */ 431 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 432 433 /** @hide Process does not exist. */ 434 public static final int PROCESS_STATE_NONEXISTENT = 17; 435 436 /** @hide The lowest process state number */ 437 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 438 439 /** @hide The highest process state number */ 440 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 441 442 /** @hide Should this process state be considered a background state? */ 443 public static final boolean isProcStateBackground(int procState) { 444 return procState >= PROCESS_STATE_BACKUP; 445 } 446 447 /** @hide requestType for assist context: only basic information. */ 448 public static final int ASSIST_CONTEXT_BASIC = 0; 449 450 /** @hide requestType for assist context: generate full AssistStructure. */ 451 public static final int ASSIST_CONTEXT_FULL = 1; 452 453 /** @hide Flag for registerUidObserver: report changes in process state. */ 454 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 455 456 /** @hide Flag for registerUidObserver: report uid gone. */ 457 public static final int UID_OBSERVER_GONE = 1<<1; 458 459 /** @hide Flag for registerUidObserver: report uid has become idle. */ 460 public static final int UID_OBSERVER_IDLE = 1<<2; 461 462 /** @hide Flag for registerUidObserver: report uid has become active. */ 463 public static final int UID_OBSERVER_ACTIVE = 1<<3; 464 465 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 466 public static final int APP_START_MODE_NORMAL = 0; 467 468 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 469 public static final int APP_START_MODE_DELAYED = 1; 470 471 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 472 * launches. */ 473 public static final int APP_START_MODE_DISABLED = 2; 474 475 /** 476 * Lock task mode is not active. 477 */ 478 public static final int LOCK_TASK_MODE_NONE = 0; 479 480 /** 481 * Full lock task mode is active. 482 */ 483 public static final int LOCK_TASK_MODE_LOCKED = 1; 484 485 /** 486 * App pinning mode is active. 487 */ 488 public static final int LOCK_TASK_MODE_PINNED = 2; 489 490 Point mAppTaskThumbnailSize; 491 492 /*package*/ ActivityManager(Context context, Handler handler) { 493 mContext = context; 494 mHandler = handler; 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 * Information you can set and retrieve about the current activity within the recent task list. 1006 */ 1007 public static class TaskDescription implements Parcelable { 1008 /** @hide */ 1009 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1010 private static final String ATTR_TASKDESCRIPTIONLABEL = 1011 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1012 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1013 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1014 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1015 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1016 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1017 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1018 1019 private String mLabel; 1020 private Bitmap mIcon; 1021 private String mIconFilename; 1022 private int mColorPrimary; 1023 private int mColorBackground; 1024 1025 /** 1026 * Creates the TaskDescription to the specified values. 1027 * 1028 * @param label A label and description of the current state of this task. 1029 * @param icon An icon that represents the current state of this task. 1030 * @param colorPrimary A color to override the theme's primary color. This color must be 1031 * opaque. 1032 */ 1033 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1034 this(label, icon, null, colorPrimary, 0); 1035 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1036 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1037 } 1038 } 1039 1040 /** 1041 * Creates the TaskDescription to the specified values. 1042 * 1043 * @param label A label and description of the current state of this activity. 1044 * @param icon An icon that represents the current state of this activity. 1045 */ 1046 public TaskDescription(String label, Bitmap icon) { 1047 this(label, icon, null, 0, 0); 1048 } 1049 1050 /** 1051 * Creates the TaskDescription to the specified values. 1052 * 1053 * @param label A label and description of the current state of this activity. 1054 */ 1055 public TaskDescription(String label) { 1056 this(label, null, null, 0, 0); 1057 } 1058 1059 /** 1060 * Creates an empty TaskDescription. 1061 */ 1062 public TaskDescription() { 1063 this(null, null, null, 0, 0); 1064 } 1065 1066 /** @hide */ 1067 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1068 int colorBackground) { 1069 mLabel = label; 1070 mIcon = icon; 1071 mIconFilename = iconFilename; 1072 mColorPrimary = colorPrimary; 1073 mColorBackground = colorBackground; 1074 } 1075 1076 /** 1077 * Creates a copy of another TaskDescription. 1078 */ 1079 public TaskDescription(TaskDescription td) { 1080 copyFrom(td); 1081 } 1082 1083 /** 1084 * Copies this the values from another TaskDescription. 1085 * @hide 1086 */ 1087 public void copyFrom(TaskDescription other) { 1088 mLabel = other.mLabel; 1089 mIcon = other.mIcon; 1090 mIconFilename = other.mIconFilename; 1091 mColorPrimary = other.mColorPrimary; 1092 mColorBackground = other.mColorBackground; 1093 } 1094 1095 private TaskDescription(Parcel source) { 1096 readFromParcel(source); 1097 } 1098 1099 /** 1100 * Sets the label for this task description. 1101 * @hide 1102 */ 1103 public void setLabel(String label) { 1104 mLabel = label; 1105 } 1106 1107 /** 1108 * Sets the primary color for this task description. 1109 * @hide 1110 */ 1111 public void setPrimaryColor(int primaryColor) { 1112 // Ensure that the given color is valid 1113 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1114 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1115 } 1116 mColorPrimary = primaryColor; 1117 } 1118 1119 /** 1120 * Sets the background color for this task description. 1121 * @hide 1122 */ 1123 public void setBackgroundColor(int backgroundColor) { 1124 // Ensure that the given color is valid 1125 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1126 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1127 } 1128 mColorBackground = backgroundColor; 1129 } 1130 1131 /** 1132 * Sets the icon for this task description. 1133 * @hide 1134 */ 1135 public void setIcon(Bitmap icon) { 1136 mIcon = icon; 1137 } 1138 1139 /** 1140 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1141 * bitmap. 1142 * @hide 1143 */ 1144 public void setIconFilename(String iconFilename) { 1145 mIconFilename = iconFilename; 1146 mIcon = null; 1147 } 1148 1149 /** 1150 * @return The label and description of the current state of this task. 1151 */ 1152 public String getLabel() { 1153 return mLabel; 1154 } 1155 1156 /** 1157 * @return The icon that represents the current state of this task. 1158 */ 1159 public Bitmap getIcon() { 1160 if (mIcon != null) { 1161 return mIcon; 1162 } 1163 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1164 } 1165 1166 /** @hide */ 1167 public String getIconFilename() { 1168 return mIconFilename; 1169 } 1170 1171 /** @hide */ 1172 public Bitmap getInMemoryIcon() { 1173 return mIcon; 1174 } 1175 1176 /** @hide */ 1177 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1178 if (iconFilename != null) { 1179 try { 1180 return getService().getTaskDescriptionIcon(iconFilename, 1181 userId); 1182 } catch (RemoteException e) { 1183 throw e.rethrowFromSystemServer(); 1184 } 1185 } 1186 return null; 1187 } 1188 1189 /** 1190 * @return The color override on the theme's primary color. 1191 */ 1192 public int getPrimaryColor() { 1193 return mColorPrimary; 1194 } 1195 1196 /** 1197 * @return The background color. 1198 * @hide 1199 */ 1200 public int getBackgroundColor() { 1201 return mColorBackground; 1202 } 1203 1204 /** @hide */ 1205 public void saveToXml(XmlSerializer out) throws IOException { 1206 if (mLabel != null) { 1207 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1208 } 1209 if (mColorPrimary != 0) { 1210 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1211 Integer.toHexString(mColorPrimary)); 1212 } 1213 if (mColorBackground != 0) { 1214 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1215 Integer.toHexString(mColorBackground)); 1216 } 1217 if (mIconFilename != null) { 1218 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1219 } 1220 } 1221 1222 /** @hide */ 1223 public void restoreFromXml(String attrName, String attrValue) { 1224 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1225 setLabel(attrValue); 1226 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1227 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1228 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1229 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1230 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1231 setIconFilename(attrValue); 1232 } 1233 } 1234 1235 @Override 1236 public int describeContents() { 1237 return 0; 1238 } 1239 1240 @Override 1241 public void writeToParcel(Parcel dest, int flags) { 1242 if (mLabel == null) { 1243 dest.writeInt(0); 1244 } else { 1245 dest.writeInt(1); 1246 dest.writeString(mLabel); 1247 } 1248 if (mIcon == null) { 1249 dest.writeInt(0); 1250 } else { 1251 dest.writeInt(1); 1252 mIcon.writeToParcel(dest, 0); 1253 } 1254 dest.writeInt(mColorPrimary); 1255 dest.writeInt(mColorBackground); 1256 if (mIconFilename == null) { 1257 dest.writeInt(0); 1258 } else { 1259 dest.writeInt(1); 1260 dest.writeString(mIconFilename); 1261 } 1262 } 1263 1264 public void readFromParcel(Parcel source) { 1265 mLabel = source.readInt() > 0 ? source.readString() : null; 1266 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1267 mColorPrimary = source.readInt(); 1268 mColorBackground = source.readInt(); 1269 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1270 } 1271 1272 public static final Creator<TaskDescription> CREATOR 1273 = new Creator<TaskDescription>() { 1274 public TaskDescription createFromParcel(Parcel source) { 1275 return new TaskDescription(source); 1276 } 1277 public TaskDescription[] newArray(int size) { 1278 return new TaskDescription[size]; 1279 } 1280 }; 1281 1282 @Override 1283 public String toString() { 1284 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1285 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1286 " colorBackground: " + mColorBackground; 1287 } 1288 } 1289 1290 /** 1291 * Information you can retrieve about tasks that the user has most recently 1292 * started or visited. 1293 */ 1294 public static class RecentTaskInfo implements Parcelable { 1295 /** 1296 * If this task is currently running, this is the identifier for it. 1297 * If it is not running, this will be -1. 1298 */ 1299 public int id; 1300 1301 /** 1302 * The true identifier of this task, valid even if it is not running. 1303 */ 1304 public int persistentId; 1305 1306 /** 1307 * The original Intent used to launch the task. You can use this 1308 * Intent to re-launch the task (if it is no longer running) or bring 1309 * the current task to the front. 1310 */ 1311 public Intent baseIntent; 1312 1313 /** 1314 * If this task was started from an alias, this is the actual 1315 * activity component that was initially started; the component of 1316 * the baseIntent in this case is the name of the actual activity 1317 * implementation that the alias referred to. Otherwise, this is null. 1318 */ 1319 public ComponentName origActivity; 1320 1321 /** 1322 * The actual activity component that started the task. 1323 * @hide 1324 */ 1325 @Nullable 1326 public ComponentName realActivity; 1327 1328 /** 1329 * Description of the task's last state. 1330 */ 1331 public CharSequence description; 1332 1333 /** 1334 * The id of the ActivityStack this Task was on most recently. 1335 * @hide 1336 */ 1337 public int stackId; 1338 1339 /** 1340 * The id of the user the task was running as. 1341 * @hide 1342 */ 1343 public int userId; 1344 1345 /** 1346 * The first time this task was active. 1347 * @hide 1348 */ 1349 public long firstActiveTime; 1350 1351 /** 1352 * The last time this task was active. 1353 * @hide 1354 */ 1355 public long lastActiveTime; 1356 1357 /** 1358 * The recent activity values for the highest activity in the stack to have set the values. 1359 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1360 */ 1361 public TaskDescription taskDescription; 1362 1363 /** 1364 * Task affiliation for grouping with other tasks. 1365 */ 1366 public int affiliatedTaskId; 1367 1368 /** 1369 * Task affiliation color of the source task with the affiliated task id. 1370 * 1371 * @hide 1372 */ 1373 public int affiliatedTaskColor; 1374 1375 /** 1376 * The component launched as the first activity in the task. 1377 * This can be considered the "application" of this task. 1378 */ 1379 public ComponentName baseActivity; 1380 1381 /** 1382 * The activity component at the top of the history stack of the task. 1383 * This is what the user is currently doing. 1384 */ 1385 public ComponentName topActivity; 1386 1387 /** 1388 * Number of activities in this task. 1389 */ 1390 public int numActivities; 1391 1392 /** 1393 * The bounds of the task. 1394 * @hide 1395 */ 1396 public Rect bounds; 1397 1398 /** 1399 * True if the task can go in the docked stack. 1400 * @hide 1401 */ 1402 public boolean isDockable; 1403 1404 /** 1405 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1406 * @hide 1407 */ 1408 public int resizeMode; 1409 1410 public RecentTaskInfo() { 1411 } 1412 1413 @Override 1414 public int describeContents() { 1415 return 0; 1416 } 1417 1418 @Override 1419 public void writeToParcel(Parcel dest, int flags) { 1420 dest.writeInt(id); 1421 dest.writeInt(persistentId); 1422 if (baseIntent != null) { 1423 dest.writeInt(1); 1424 baseIntent.writeToParcel(dest, 0); 1425 } else { 1426 dest.writeInt(0); 1427 } 1428 ComponentName.writeToParcel(origActivity, dest); 1429 ComponentName.writeToParcel(realActivity, dest); 1430 TextUtils.writeToParcel(description, dest, 1431 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1432 if (taskDescription != null) { 1433 dest.writeInt(1); 1434 taskDescription.writeToParcel(dest, 0); 1435 } else { 1436 dest.writeInt(0); 1437 } 1438 dest.writeInt(stackId); 1439 dest.writeInt(userId); 1440 dest.writeLong(firstActiveTime); 1441 dest.writeLong(lastActiveTime); 1442 dest.writeInt(affiliatedTaskId); 1443 dest.writeInt(affiliatedTaskColor); 1444 ComponentName.writeToParcel(baseActivity, dest); 1445 ComponentName.writeToParcel(topActivity, dest); 1446 dest.writeInt(numActivities); 1447 if (bounds != null) { 1448 dest.writeInt(1); 1449 bounds.writeToParcel(dest, 0); 1450 } else { 1451 dest.writeInt(0); 1452 } 1453 dest.writeInt(isDockable ? 1 : 0); 1454 dest.writeInt(resizeMode); 1455 } 1456 1457 public void readFromParcel(Parcel source) { 1458 id = source.readInt(); 1459 persistentId = source.readInt(); 1460 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1461 origActivity = ComponentName.readFromParcel(source); 1462 realActivity = ComponentName.readFromParcel(source); 1463 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1464 taskDescription = source.readInt() > 0 ? 1465 TaskDescription.CREATOR.createFromParcel(source) : null; 1466 stackId = source.readInt(); 1467 userId = source.readInt(); 1468 firstActiveTime = source.readLong(); 1469 lastActiveTime = source.readLong(); 1470 affiliatedTaskId = source.readInt(); 1471 affiliatedTaskColor = source.readInt(); 1472 baseActivity = ComponentName.readFromParcel(source); 1473 topActivity = ComponentName.readFromParcel(source); 1474 numActivities = source.readInt(); 1475 bounds = source.readInt() > 0 ? 1476 Rect.CREATOR.createFromParcel(source) : null; 1477 isDockable = source.readInt() == 1; 1478 resizeMode = source.readInt(); 1479 } 1480 1481 public static final Creator<RecentTaskInfo> CREATOR 1482 = new Creator<RecentTaskInfo>() { 1483 public RecentTaskInfo createFromParcel(Parcel source) { 1484 return new RecentTaskInfo(source); 1485 } 1486 public RecentTaskInfo[] newArray(int size) { 1487 return new RecentTaskInfo[size]; 1488 } 1489 }; 1490 1491 private RecentTaskInfo(Parcel source) { 1492 readFromParcel(source); 1493 } 1494 } 1495 1496 /** 1497 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1498 * that have set their 1499 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1500 */ 1501 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1502 1503 /** 1504 * Provides a list that does not contain any 1505 * recent tasks that currently are not available to the user. 1506 */ 1507 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1508 1509 /** 1510 * Provides a list that contains recent tasks for all 1511 * profiles of a user. 1512 * @hide 1513 */ 1514 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1515 1516 /** 1517 * Ignores all tasks that are on the home stack. 1518 * @hide 1519 */ 1520 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1521 1522 /** 1523 * Ignores the top task in the docked stack. 1524 * @hide 1525 */ 1526 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1527 1528 /** 1529 * Ignores all tasks that are on the pinned stack. 1530 * @hide 1531 */ 1532 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1533 1534 /** 1535 * <p></p>Return a list of the tasks that the user has recently launched, with 1536 * the most recent being first and older ones after in order. 1537 * 1538 * <p><b>Note: this method is only intended for debugging and presenting 1539 * task management user interfaces</b>. This should never be used for 1540 * core logic in an application, such as deciding between different 1541 * behaviors based on the information found here. Such uses are 1542 * <em>not</em> supported, and will likely break in the future. For 1543 * example, if multiple applications can be actively running at the 1544 * same time, assumptions made about the meaning of the data here for 1545 * purposes of control flow will be incorrect.</p> 1546 * 1547 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1548 * no longer available to third party applications: the introduction of 1549 * document-centric recents means 1550 * it can leak personal information to the caller. For backwards compatibility, 1551 * it will still return a small subset of its data: at least the caller's 1552 * own tasks (though see {@link #getAppTasks()} for the correct supported 1553 * way to retrieve that information), and possibly some other tasks 1554 * such as home that are known to not be sensitive. 1555 * 1556 * @param maxNum The maximum number of entries to return in the list. The 1557 * actual number returned may be smaller, depending on how many tasks the 1558 * user has started and the maximum number the system can remember. 1559 * @param flags Information about what to return. May be any combination 1560 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1561 * 1562 * @return Returns a list of RecentTaskInfo records describing each of 1563 * the recent tasks. 1564 */ 1565 @Deprecated 1566 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1567 throws SecurityException { 1568 try { 1569 return getService().getRecentTasks(maxNum, 1570 flags, UserHandle.myUserId()).getList(); 1571 } catch (RemoteException e) { 1572 throw e.rethrowFromSystemServer(); 1573 } 1574 } 1575 1576 /** 1577 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1578 * specific user. It requires holding 1579 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1580 * @param maxNum The maximum number of entries to return in the list. The 1581 * actual number returned may be smaller, depending on how many tasks the 1582 * user has started and the maximum number the system can remember. 1583 * @param flags Information about what to return. May be any combination 1584 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1585 * 1586 * @return Returns a list of RecentTaskInfo records describing each of 1587 * the recent tasks. Most recently activated tasks go first. 1588 * 1589 * @hide 1590 */ 1591 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1592 throws SecurityException { 1593 try { 1594 return getService().getRecentTasks(maxNum, 1595 flags, userId).getList(); 1596 } catch (RemoteException e) { 1597 throw e.rethrowFromSystemServer(); 1598 } 1599 } 1600 1601 /** 1602 * Information you can retrieve about a particular task that is currently 1603 * "running" in the system. Note that a running task does not mean the 1604 * given task actually has a process it is actively running in; it simply 1605 * means that the user has gone to it and never closed it, but currently 1606 * the system may have killed its process and is only holding on to its 1607 * last state in order to restart it when the user returns. 1608 */ 1609 public static class RunningTaskInfo implements Parcelable { 1610 /** 1611 * A unique identifier for this task. 1612 */ 1613 public int id; 1614 1615 /** 1616 * The stack that currently contains this task. 1617 * @hide 1618 */ 1619 public int stackId; 1620 1621 /** 1622 * The component launched as the first activity in the task. This can 1623 * be considered the "application" of this task. 1624 */ 1625 public ComponentName baseActivity; 1626 1627 /** 1628 * The activity component at the top of the history stack of the task. 1629 * This is what the user is currently doing. 1630 */ 1631 public ComponentName topActivity; 1632 1633 /** 1634 * Thumbnail representation of the task's current state. Currently 1635 * always null. 1636 */ 1637 public Bitmap thumbnail; 1638 1639 /** 1640 * Description of the task's current state. 1641 */ 1642 public CharSequence description; 1643 1644 /** 1645 * Number of activities in this task. 1646 */ 1647 public int numActivities; 1648 1649 /** 1650 * Number of activities that are currently running (not stopped 1651 * and persisted) in this task. 1652 */ 1653 public int numRunning; 1654 1655 /** 1656 * Last time task was run. For sorting. 1657 * @hide 1658 */ 1659 public long lastActiveTime; 1660 1661 /** 1662 * True if the task can go in the docked stack. 1663 * @hide 1664 */ 1665 public boolean isDockable; 1666 1667 /** 1668 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1669 * @hide 1670 */ 1671 public int resizeMode; 1672 1673 public RunningTaskInfo() { 1674 } 1675 1676 public int describeContents() { 1677 return 0; 1678 } 1679 1680 public void writeToParcel(Parcel dest, int flags) { 1681 dest.writeInt(id); 1682 dest.writeInt(stackId); 1683 ComponentName.writeToParcel(baseActivity, dest); 1684 ComponentName.writeToParcel(topActivity, dest); 1685 if (thumbnail != null) { 1686 dest.writeInt(1); 1687 thumbnail.writeToParcel(dest, 0); 1688 } else { 1689 dest.writeInt(0); 1690 } 1691 TextUtils.writeToParcel(description, dest, 1692 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1693 dest.writeInt(numActivities); 1694 dest.writeInt(numRunning); 1695 dest.writeInt(isDockable ? 1 : 0); 1696 dest.writeInt(resizeMode); 1697 } 1698 1699 public void readFromParcel(Parcel source) { 1700 id = source.readInt(); 1701 stackId = source.readInt(); 1702 baseActivity = ComponentName.readFromParcel(source); 1703 topActivity = ComponentName.readFromParcel(source); 1704 if (source.readInt() != 0) { 1705 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1706 } else { 1707 thumbnail = null; 1708 } 1709 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1710 numActivities = source.readInt(); 1711 numRunning = source.readInt(); 1712 isDockable = source.readInt() != 0; 1713 resizeMode = source.readInt(); 1714 } 1715 1716 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1717 public RunningTaskInfo createFromParcel(Parcel source) { 1718 return new RunningTaskInfo(source); 1719 } 1720 public RunningTaskInfo[] newArray(int size) { 1721 return new RunningTaskInfo[size]; 1722 } 1723 }; 1724 1725 private RunningTaskInfo(Parcel source) { 1726 readFromParcel(source); 1727 } 1728 } 1729 1730 /** 1731 * Get the list of tasks associated with the calling application. 1732 * 1733 * @return The list of tasks associated with the application making this call. 1734 * @throws SecurityException 1735 */ 1736 public List<ActivityManager.AppTask> getAppTasks() { 1737 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1738 List<IBinder> appTasks; 1739 try { 1740 appTasks = getService().getAppTasks(mContext.getPackageName()); 1741 } catch (RemoteException e) { 1742 throw e.rethrowFromSystemServer(); 1743 } 1744 int numAppTasks = appTasks.size(); 1745 for (int i = 0; i < numAppTasks; i++) { 1746 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1747 } 1748 return tasks; 1749 } 1750 1751 /** 1752 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1753 * with {@link #addAppTask}. 1754 */ 1755 public Size getAppTaskThumbnailSize() { 1756 synchronized (this) { 1757 ensureAppTaskThumbnailSizeLocked(); 1758 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1759 } 1760 } 1761 1762 private void ensureAppTaskThumbnailSizeLocked() { 1763 if (mAppTaskThumbnailSize == null) { 1764 try { 1765 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1766 } catch (RemoteException e) { 1767 throw e.rethrowFromSystemServer(); 1768 } 1769 } 1770 } 1771 1772 /** 1773 * Add a new {@link AppTask} for the calling application. This will create a new 1774 * recents entry that is added to the <b>end</b> of all existing recents. 1775 * 1776 * @param activity The activity that is adding the entry. This is used to help determine 1777 * the context that the new recents entry will be in. 1778 * @param intent The Intent that describes the recents entry. This is the same Intent that 1779 * you would have used to launch the activity for it. In generally you will want to set 1780 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1781 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1782 * entry will exist without an activity, so it doesn't make sense to not retain it when 1783 * its activity disappears. The given Intent here also must have an explicit ComponentName 1784 * set on it. 1785 * @param description Optional additional description information. 1786 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1787 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1788 * recreated in your process, probably in a way you don't like, before the recents entry 1789 * is added. 1790 * 1791 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1792 * most likely cause of failure is that there is no more room for more tasks for your app. 1793 */ 1794 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1795 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1796 Point size; 1797 synchronized (this) { 1798 ensureAppTaskThumbnailSizeLocked(); 1799 size = mAppTaskThumbnailSize; 1800 } 1801 final int tw = thumbnail.getWidth(); 1802 final int th = thumbnail.getHeight(); 1803 if (tw != size.x || th != size.y) { 1804 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1805 1806 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1807 float scale; 1808 float dx = 0, dy = 0; 1809 if (tw * size.x > size.y * th) { 1810 scale = (float) size.x / (float) th; 1811 dx = (size.y - tw * scale) * 0.5f; 1812 } else { 1813 scale = (float) size.y / (float) tw; 1814 dy = (size.x - th * scale) * 0.5f; 1815 } 1816 Matrix matrix = new Matrix(); 1817 matrix.setScale(scale, scale); 1818 matrix.postTranslate((int) (dx + 0.5f), 0); 1819 1820 Canvas canvas = new Canvas(bm); 1821 canvas.drawBitmap(thumbnail, matrix, null); 1822 canvas.setBitmap(null); 1823 1824 thumbnail = bm; 1825 } 1826 if (description == null) { 1827 description = new TaskDescription(); 1828 } 1829 try { 1830 return getService().addAppTask(activity.getActivityToken(), 1831 intent, description, thumbnail); 1832 } catch (RemoteException e) { 1833 throw e.rethrowFromSystemServer(); 1834 } 1835 } 1836 1837 /** 1838 * Return a list of the tasks that are currently running, with 1839 * the most recent being first and older ones after in order. Note that 1840 * "running" does not mean any of the task's code is currently loaded or 1841 * activity -- the task may have been frozen by the system, so that it 1842 * can be restarted in its previous state when next brought to the 1843 * foreground. 1844 * 1845 * <p><b>Note: this method is only intended for debugging and presenting 1846 * task management user interfaces</b>. This should never be used for 1847 * core logic in an application, such as deciding between different 1848 * behaviors based on the information found here. Such uses are 1849 * <em>not</em> supported, and will likely break in the future. For 1850 * example, if multiple applications can be actively running at the 1851 * same time, assumptions made about the meaning of the data here for 1852 * purposes of control flow will be incorrect.</p> 1853 * 1854 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1855 * is no longer available to third party 1856 * applications: the introduction of document-centric recents means 1857 * it can leak person information to the caller. For backwards compatibility, 1858 * it will still retu rn a small subset of its data: at least the caller's 1859 * own tasks, and possibly some other tasks 1860 * such as home that are known to not be sensitive. 1861 * 1862 * @param maxNum The maximum number of entries to return in the list. The 1863 * actual number returned may be smaller, depending on how many tasks the 1864 * user has started. 1865 * 1866 * @return Returns a list of RunningTaskInfo records describing each of 1867 * the running tasks. 1868 */ 1869 @Deprecated 1870 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1871 throws SecurityException { 1872 try { 1873 return getService().getTasks(maxNum, 0); 1874 } catch (RemoteException e) { 1875 throw e.rethrowFromSystemServer(); 1876 } 1877 } 1878 1879 /** 1880 * Completely remove the given task. 1881 * 1882 * @param taskId Identifier of the task to be removed. 1883 * @return Returns true if the given task was found and removed. 1884 * 1885 * @hide 1886 */ 1887 public boolean removeTask(int taskId) throws SecurityException { 1888 try { 1889 return getService().removeTask(taskId); 1890 } catch (RemoteException e) { 1891 throw e.rethrowFromSystemServer(); 1892 } 1893 } 1894 1895 /** 1896 * Metadata related to the {@link TaskThumbnail}. 1897 * 1898 * @hide 1899 */ 1900 public static class TaskThumbnailInfo implements Parcelable { 1901 /** @hide */ 1902 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1903 private static final String ATTR_TASK_WIDTH = 1904 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1905 private static final String ATTR_TASK_HEIGHT = 1906 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1907 private static final String ATTR_SCREEN_ORIENTATION = 1908 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1909 1910 public int taskWidth; 1911 public int taskHeight; 1912 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1913 1914 public TaskThumbnailInfo() { 1915 // Do nothing 1916 } 1917 1918 private TaskThumbnailInfo(Parcel source) { 1919 readFromParcel(source); 1920 } 1921 1922 /** 1923 * Resets this info state to the initial state. 1924 * @hide 1925 */ 1926 public void reset() { 1927 taskWidth = 0; 1928 taskHeight = 0; 1929 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1930 } 1931 1932 /** 1933 * Copies from another ThumbnailInfo. 1934 */ 1935 public void copyFrom(TaskThumbnailInfo o) { 1936 taskWidth = o.taskWidth; 1937 taskHeight = o.taskHeight; 1938 screenOrientation = o.screenOrientation; 1939 } 1940 1941 /** @hide */ 1942 public void saveToXml(XmlSerializer out) throws IOException { 1943 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 1944 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 1945 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 1946 } 1947 1948 /** @hide */ 1949 public void restoreFromXml(String attrName, String attrValue) { 1950 if (ATTR_TASK_WIDTH.equals(attrName)) { 1951 taskWidth = Integer.parseInt(attrValue); 1952 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 1953 taskHeight = Integer.parseInt(attrValue); 1954 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 1955 screenOrientation = Integer.parseInt(attrValue); 1956 } 1957 } 1958 1959 public int describeContents() { 1960 return 0; 1961 } 1962 1963 public void writeToParcel(Parcel dest, int flags) { 1964 dest.writeInt(taskWidth); 1965 dest.writeInt(taskHeight); 1966 dest.writeInt(screenOrientation); 1967 } 1968 1969 public void readFromParcel(Parcel source) { 1970 taskWidth = source.readInt(); 1971 taskHeight = source.readInt(); 1972 screenOrientation = source.readInt(); 1973 } 1974 1975 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 1976 public TaskThumbnailInfo createFromParcel(Parcel source) { 1977 return new TaskThumbnailInfo(source); 1978 } 1979 public TaskThumbnailInfo[] newArray(int size) { 1980 return new TaskThumbnailInfo[size]; 1981 } 1982 }; 1983 } 1984 1985 /** @hide */ 1986 public static class TaskThumbnail implements Parcelable { 1987 public Bitmap mainThumbnail; 1988 public ParcelFileDescriptor thumbnailFileDescriptor; 1989 public TaskThumbnailInfo thumbnailInfo; 1990 1991 public TaskThumbnail() { 1992 } 1993 1994 private TaskThumbnail(Parcel source) { 1995 readFromParcel(source); 1996 } 1997 1998 public int describeContents() { 1999 if (thumbnailFileDescriptor != null) { 2000 return thumbnailFileDescriptor.describeContents(); 2001 } 2002 return 0; 2003 } 2004 2005 public void writeToParcel(Parcel dest, int flags) { 2006 if (mainThumbnail != null) { 2007 dest.writeInt(1); 2008 mainThumbnail.writeToParcel(dest, flags); 2009 } else { 2010 dest.writeInt(0); 2011 } 2012 if (thumbnailFileDescriptor != null) { 2013 dest.writeInt(1); 2014 thumbnailFileDescriptor.writeToParcel(dest, flags); 2015 } else { 2016 dest.writeInt(0); 2017 } 2018 if (thumbnailInfo != null) { 2019 dest.writeInt(1); 2020 thumbnailInfo.writeToParcel(dest, flags); 2021 } else { 2022 dest.writeInt(0); 2023 } 2024 } 2025 2026 public void readFromParcel(Parcel source) { 2027 if (source.readInt() != 0) { 2028 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2029 } else { 2030 mainThumbnail = null; 2031 } 2032 if (source.readInt() != 0) { 2033 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2034 } else { 2035 thumbnailFileDescriptor = null; 2036 } 2037 if (source.readInt() != 0) { 2038 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2039 } else { 2040 thumbnailInfo = null; 2041 } 2042 } 2043 2044 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2045 public TaskThumbnail createFromParcel(Parcel source) { 2046 return new TaskThumbnail(source); 2047 } 2048 public TaskThumbnail[] newArray(int size) { 2049 return new TaskThumbnail[size]; 2050 } 2051 }; 2052 } 2053 2054 /** @hide */ 2055 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2056 try { 2057 return getService().getTaskThumbnail(id); 2058 } catch (RemoteException e) { 2059 throw e.rethrowFromSystemServer(); 2060 } 2061 } 2062 2063 /** 2064 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2065 * activity along with the task, so it is positioned immediately behind 2066 * the task. 2067 */ 2068 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2069 2070 /** 2071 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2072 * user-instigated action, so the current activity will not receive a 2073 * hint that the user is leaving. 2074 */ 2075 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2076 2077 /** 2078 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2079 * with a null options argument. 2080 * 2081 * @param taskId The identifier of the task to be moved, as found in 2082 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2083 * @param flags Additional operational flags, 0 or more of 2084 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2085 */ 2086 public void moveTaskToFront(int taskId, int flags) { 2087 moveTaskToFront(taskId, flags, null); 2088 } 2089 2090 /** 2091 * Ask that the task associated with a given task ID be moved to the 2092 * front of the stack, so it is now visible to the user. Requires that 2093 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2094 * or a SecurityException will be thrown. 2095 * 2096 * @param taskId The identifier of the task to be moved, as found in 2097 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2098 * @param flags Additional operational flags, 0 or more of 2099 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2100 * @param options Additional options for the operation, either null or 2101 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2102 * Context.startActivity(Intent, Bundle)}. 2103 */ 2104 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2105 try { 2106 getService().moveTaskToFront(taskId, flags, options); 2107 } catch (RemoteException e) { 2108 throw e.rethrowFromSystemServer(); 2109 } 2110 } 2111 2112 /** 2113 * Information you can retrieve about a particular Service that is 2114 * currently running in the system. 2115 */ 2116 public static class RunningServiceInfo implements Parcelable { 2117 /** 2118 * The service component. 2119 */ 2120 public ComponentName service; 2121 2122 /** 2123 * If non-zero, this is the process the service is running in. 2124 */ 2125 public int pid; 2126 2127 /** 2128 * The UID that owns this service. 2129 */ 2130 public int uid; 2131 2132 /** 2133 * The name of the process this service runs in. 2134 */ 2135 public String process; 2136 2137 /** 2138 * Set to true if the service has asked to run as a foreground process. 2139 */ 2140 public boolean foreground; 2141 2142 /** 2143 * The time when the service was first made active, either by someone 2144 * starting or binding to it. This 2145 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2146 */ 2147 public long activeSince; 2148 2149 /** 2150 * Set to true if this service has been explicitly started. 2151 */ 2152 public boolean started; 2153 2154 /** 2155 * Number of clients connected to the service. 2156 */ 2157 public int clientCount; 2158 2159 /** 2160 * Number of times the service's process has crashed while the service 2161 * is running. 2162 */ 2163 public int crashCount; 2164 2165 /** 2166 * The time when there was last activity in the service (either 2167 * explicit requests to start it or clients binding to it). This 2168 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2169 */ 2170 public long lastActivityTime; 2171 2172 /** 2173 * If non-zero, this service is not currently running, but scheduled to 2174 * restart at the given time. 2175 */ 2176 public long restarting; 2177 2178 /** 2179 * Bit for {@link #flags}: set if this service has been 2180 * explicitly started. 2181 */ 2182 public static final int FLAG_STARTED = 1<<0; 2183 2184 /** 2185 * Bit for {@link #flags}: set if the service has asked to 2186 * run as a foreground process. 2187 */ 2188 public static final int FLAG_FOREGROUND = 1<<1; 2189 2190 /** 2191 * Bit for {@link #flags): set if the service is running in a 2192 * core system process. 2193 */ 2194 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2195 2196 /** 2197 * Bit for {@link #flags): set if the service is running in a 2198 * persistent process. 2199 */ 2200 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2201 2202 /** 2203 * Running flags. 2204 */ 2205 public int flags; 2206 2207 /** 2208 * For special services that are bound to by system code, this is 2209 * the package that holds the binding. 2210 */ 2211 public String clientPackage; 2212 2213 /** 2214 * For special services that are bound to by system code, this is 2215 * a string resource providing a user-visible label for who the 2216 * client is. 2217 */ 2218 public int clientLabel; 2219 2220 public RunningServiceInfo() { 2221 } 2222 2223 public int describeContents() { 2224 return 0; 2225 } 2226 2227 public void writeToParcel(Parcel dest, int flags) { 2228 ComponentName.writeToParcel(service, dest); 2229 dest.writeInt(pid); 2230 dest.writeInt(uid); 2231 dest.writeString(process); 2232 dest.writeInt(foreground ? 1 : 0); 2233 dest.writeLong(activeSince); 2234 dest.writeInt(started ? 1 : 0); 2235 dest.writeInt(clientCount); 2236 dest.writeInt(crashCount); 2237 dest.writeLong(lastActivityTime); 2238 dest.writeLong(restarting); 2239 dest.writeInt(this.flags); 2240 dest.writeString(clientPackage); 2241 dest.writeInt(clientLabel); 2242 } 2243 2244 public void readFromParcel(Parcel source) { 2245 service = ComponentName.readFromParcel(source); 2246 pid = source.readInt(); 2247 uid = source.readInt(); 2248 process = source.readString(); 2249 foreground = source.readInt() != 0; 2250 activeSince = source.readLong(); 2251 started = source.readInt() != 0; 2252 clientCount = source.readInt(); 2253 crashCount = source.readInt(); 2254 lastActivityTime = source.readLong(); 2255 restarting = source.readLong(); 2256 flags = source.readInt(); 2257 clientPackage = source.readString(); 2258 clientLabel = source.readInt(); 2259 } 2260 2261 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2262 public RunningServiceInfo createFromParcel(Parcel source) { 2263 return new RunningServiceInfo(source); 2264 } 2265 public RunningServiceInfo[] newArray(int size) { 2266 return new RunningServiceInfo[size]; 2267 } 2268 }; 2269 2270 private RunningServiceInfo(Parcel source) { 2271 readFromParcel(source); 2272 } 2273 } 2274 2275 /** 2276 * Return a list of the services that are currently running. 2277 * 2278 * <p><b>Note: this method is only intended for debugging or implementing 2279 * service management type user interfaces.</b></p> 2280 * 2281 * @param maxNum The maximum number of entries to return in the list. The 2282 * actual number returned may be smaller, depending on how many services 2283 * are running. 2284 * 2285 * @return Returns a list of RunningServiceInfo records describing each of 2286 * the running tasks. 2287 */ 2288 public List<RunningServiceInfo> getRunningServices(int maxNum) 2289 throws SecurityException { 2290 try { 2291 return getService() 2292 .getServices(maxNum, 0); 2293 } catch (RemoteException e) { 2294 throw e.rethrowFromSystemServer(); 2295 } 2296 } 2297 2298 /** 2299 * Returns a PendingIntent you can start to show a control panel for the 2300 * given running service. If the service does not have a control panel, 2301 * null is returned. 2302 */ 2303 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2304 throws SecurityException { 2305 try { 2306 return getService() 2307 .getRunningServiceControlPanel(service); 2308 } catch (RemoteException e) { 2309 throw e.rethrowFromSystemServer(); 2310 } 2311 } 2312 2313 /** 2314 * Information you can retrieve about the available memory through 2315 * {@link ActivityManager#getMemoryInfo}. 2316 */ 2317 public static class MemoryInfo implements Parcelable { 2318 /** 2319 * The available memory on the system. This number should not 2320 * be considered absolute: due to the nature of the kernel, a significant 2321 * portion of this memory is actually in use and needed for the overall 2322 * system to run well. 2323 */ 2324 public long availMem; 2325 2326 /** 2327 * The total memory accessible by the kernel. This is basically the 2328 * RAM size of the device, not including below-kernel fixed allocations 2329 * like DMA buffers, RAM for the baseband CPU, etc. 2330 */ 2331 public long totalMem; 2332 2333 /** 2334 * The threshold of {@link #availMem} at which we consider memory to be 2335 * low and start killing background services and other non-extraneous 2336 * processes. 2337 */ 2338 public long threshold; 2339 2340 /** 2341 * Set to true if the system considers itself to currently be in a low 2342 * memory situation. 2343 */ 2344 public boolean lowMemory; 2345 2346 /** @hide */ 2347 public long hiddenAppThreshold; 2348 /** @hide */ 2349 public long secondaryServerThreshold; 2350 /** @hide */ 2351 public long visibleAppThreshold; 2352 /** @hide */ 2353 public long foregroundAppThreshold; 2354 2355 public MemoryInfo() { 2356 } 2357 2358 public int describeContents() { 2359 return 0; 2360 } 2361 2362 public void writeToParcel(Parcel dest, int flags) { 2363 dest.writeLong(availMem); 2364 dest.writeLong(totalMem); 2365 dest.writeLong(threshold); 2366 dest.writeInt(lowMemory ? 1 : 0); 2367 dest.writeLong(hiddenAppThreshold); 2368 dest.writeLong(secondaryServerThreshold); 2369 dest.writeLong(visibleAppThreshold); 2370 dest.writeLong(foregroundAppThreshold); 2371 } 2372 2373 public void readFromParcel(Parcel source) { 2374 availMem = source.readLong(); 2375 totalMem = source.readLong(); 2376 threshold = source.readLong(); 2377 lowMemory = source.readInt() != 0; 2378 hiddenAppThreshold = source.readLong(); 2379 secondaryServerThreshold = source.readLong(); 2380 visibleAppThreshold = source.readLong(); 2381 foregroundAppThreshold = source.readLong(); 2382 } 2383 2384 public static final Creator<MemoryInfo> CREATOR 2385 = new Creator<MemoryInfo>() { 2386 public MemoryInfo createFromParcel(Parcel source) { 2387 return new MemoryInfo(source); 2388 } 2389 public MemoryInfo[] newArray(int size) { 2390 return new MemoryInfo[size]; 2391 } 2392 }; 2393 2394 private MemoryInfo(Parcel source) { 2395 readFromParcel(source); 2396 } 2397 } 2398 2399 /** 2400 * Return general information about the memory state of the system. This 2401 * can be used to help decide how to manage your own memory, though note 2402 * that polling is not recommended and 2403 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2404 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2405 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2406 * level of your process as needed, which gives a better hint for how to 2407 * manage its memory. 2408 */ 2409 public void getMemoryInfo(MemoryInfo outInfo) { 2410 try { 2411 getService().getMemoryInfo(outInfo); 2412 } catch (RemoteException e) { 2413 throw e.rethrowFromSystemServer(); 2414 } 2415 } 2416 2417 /** 2418 * Information you can retrieve about an ActivityStack in the system. 2419 * @hide 2420 */ 2421 public static class StackInfo implements Parcelable { 2422 public int stackId; 2423 public Rect bounds = new Rect(); 2424 public int[] taskIds; 2425 public String[] taskNames; 2426 public Rect[] taskBounds; 2427 public int[] taskUserIds; 2428 public ComponentName topActivity; 2429 public int displayId; 2430 public int userId; 2431 public boolean visible; 2432 // Index of the stack in the display's stack list, can be used for comparison of stack order 2433 public int position; 2434 2435 @Override 2436 public int describeContents() { 2437 return 0; 2438 } 2439 2440 @Override 2441 public void writeToParcel(Parcel dest, int flags) { 2442 dest.writeInt(stackId); 2443 dest.writeInt(bounds.left); 2444 dest.writeInt(bounds.top); 2445 dest.writeInt(bounds.right); 2446 dest.writeInt(bounds.bottom); 2447 dest.writeIntArray(taskIds); 2448 dest.writeStringArray(taskNames); 2449 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2450 dest.writeInt(boundsCount); 2451 for (int i = 0; i < boundsCount; i++) { 2452 dest.writeInt(taskBounds[i].left); 2453 dest.writeInt(taskBounds[i].top); 2454 dest.writeInt(taskBounds[i].right); 2455 dest.writeInt(taskBounds[i].bottom); 2456 } 2457 dest.writeIntArray(taskUserIds); 2458 dest.writeInt(displayId); 2459 dest.writeInt(userId); 2460 dest.writeInt(visible ? 1 : 0); 2461 dest.writeInt(position); 2462 if (topActivity != null) { 2463 dest.writeInt(1); 2464 topActivity.writeToParcel(dest, 0); 2465 } else { 2466 dest.writeInt(0); 2467 } 2468 } 2469 2470 public void readFromParcel(Parcel source) { 2471 stackId = source.readInt(); 2472 bounds = new Rect( 2473 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2474 taskIds = source.createIntArray(); 2475 taskNames = source.createStringArray(); 2476 final int boundsCount = source.readInt(); 2477 if (boundsCount > 0) { 2478 taskBounds = new Rect[boundsCount]; 2479 for (int i = 0; i < boundsCount; i++) { 2480 taskBounds[i] = new Rect(); 2481 taskBounds[i].set( 2482 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2483 } 2484 } else { 2485 taskBounds = null; 2486 } 2487 taskUserIds = source.createIntArray(); 2488 displayId = source.readInt(); 2489 userId = source.readInt(); 2490 visible = source.readInt() > 0; 2491 position = source.readInt(); 2492 if (source.readInt() > 0) { 2493 topActivity = ComponentName.readFromParcel(source); 2494 } 2495 } 2496 2497 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2498 @Override 2499 public StackInfo createFromParcel(Parcel source) { 2500 return new StackInfo(source); 2501 } 2502 @Override 2503 public StackInfo[] newArray(int size) { 2504 return new StackInfo[size]; 2505 } 2506 }; 2507 2508 public StackInfo() { 2509 } 2510 2511 private StackInfo(Parcel source) { 2512 readFromParcel(source); 2513 } 2514 2515 public String toString(String prefix) { 2516 StringBuilder sb = new StringBuilder(256); 2517 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2518 sb.append(" bounds="); sb.append(bounds.toShortString()); 2519 sb.append(" displayId="); sb.append(displayId); 2520 sb.append(" userId="); sb.append(userId); 2521 sb.append("\n"); 2522 prefix = prefix + " "; 2523 for (int i = 0; i < taskIds.length; ++i) { 2524 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2525 sb.append(": "); sb.append(taskNames[i]); 2526 if (taskBounds != null) { 2527 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2528 } 2529 sb.append(" userId=").append(taskUserIds[i]); 2530 sb.append(" visible=").append(visible); 2531 if (topActivity != null) { 2532 sb.append(" topActivity=").append(topActivity); 2533 } 2534 sb.append("\n"); 2535 } 2536 return sb.toString(); 2537 } 2538 2539 @Override 2540 public String toString() { 2541 return toString(""); 2542 } 2543 } 2544 2545 /** 2546 * @hide 2547 */ 2548 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2549 try { 2550 return getService().clearApplicationUserData(packageName, 2551 observer, UserHandle.myUserId()); 2552 } catch (RemoteException e) { 2553 throw e.rethrowFromSystemServer(); 2554 } 2555 } 2556 2557 /** 2558 * Permits an application to erase its own data from disk. This is equivalent to 2559 * the user choosing to clear the app's data from within the device settings UI. It 2560 * erases all dynamic data associated with the app -- its private data and data in its 2561 * private area on external storage -- but does not remove the installed application 2562 * itself, nor any OBB files. 2563 * 2564 * @return {@code true} if the application successfully requested that the application's 2565 * data be erased; {@code false} otherwise. 2566 */ 2567 public boolean clearApplicationUserData() { 2568 return clearApplicationUserData(mContext.getPackageName(), null); 2569 } 2570 2571 2572 /** 2573 * Permits an application to get the persistent URI permissions granted to another. 2574 * 2575 * <p>Typically called by Settings. 2576 * 2577 * @param packageName application to look for the granted permissions 2578 * @return list of granted URI permissions 2579 * 2580 * @hide 2581 */ 2582 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2583 try { 2584 return getService().getGrantedUriPermissions(packageName, 2585 UserHandle.myUserId()); 2586 } catch (RemoteException e) { 2587 throw e.rethrowFromSystemServer(); 2588 } 2589 } 2590 2591 /** 2592 * Permits an application to clear the persistent URI permissions granted to another. 2593 * 2594 * <p>Typically called by Settings. 2595 * 2596 * @param packageName application to clear its granted permissions 2597 * 2598 * @hide 2599 */ 2600 public void clearGrantedUriPermissions(String packageName) { 2601 try { 2602 getService().clearGrantedUriPermissions(packageName, 2603 UserHandle.myUserId()); 2604 } catch (RemoteException e) { 2605 throw e.rethrowFromSystemServer(); 2606 } 2607 } 2608 2609 /** 2610 * Information you can retrieve about any processes that are in an error condition. 2611 */ 2612 public static class ProcessErrorStateInfo implements Parcelable { 2613 /** 2614 * Condition codes 2615 */ 2616 public static final int NO_ERROR = 0; 2617 public static final int CRASHED = 1; 2618 public static final int NOT_RESPONDING = 2; 2619 2620 /** 2621 * The condition that the process is in. 2622 */ 2623 public int condition; 2624 2625 /** 2626 * The process name in which the crash or error occurred. 2627 */ 2628 public String processName; 2629 2630 /** 2631 * The pid of this process; 0 if none 2632 */ 2633 public int pid; 2634 2635 /** 2636 * The kernel user-ID that has been assigned to this process; 2637 * currently this is not a unique ID (multiple applications can have 2638 * the same uid). 2639 */ 2640 public int uid; 2641 2642 /** 2643 * The activity name associated with the error, if known. May be null. 2644 */ 2645 public String tag; 2646 2647 /** 2648 * A short message describing the error condition. 2649 */ 2650 public String shortMsg; 2651 2652 /** 2653 * A long message describing the error condition. 2654 */ 2655 public String longMsg; 2656 2657 /** 2658 * The stack trace where the error originated. May be null. 2659 */ 2660 public String stackTrace; 2661 2662 /** 2663 * to be deprecated: This value will always be null. 2664 */ 2665 public byte[] crashData = null; 2666 2667 public ProcessErrorStateInfo() { 2668 } 2669 2670 @Override 2671 public int describeContents() { 2672 return 0; 2673 } 2674 2675 @Override 2676 public void writeToParcel(Parcel dest, int flags) { 2677 dest.writeInt(condition); 2678 dest.writeString(processName); 2679 dest.writeInt(pid); 2680 dest.writeInt(uid); 2681 dest.writeString(tag); 2682 dest.writeString(shortMsg); 2683 dest.writeString(longMsg); 2684 dest.writeString(stackTrace); 2685 } 2686 2687 public void readFromParcel(Parcel source) { 2688 condition = source.readInt(); 2689 processName = source.readString(); 2690 pid = source.readInt(); 2691 uid = source.readInt(); 2692 tag = source.readString(); 2693 shortMsg = source.readString(); 2694 longMsg = source.readString(); 2695 stackTrace = source.readString(); 2696 } 2697 2698 public static final Creator<ProcessErrorStateInfo> CREATOR = 2699 new Creator<ProcessErrorStateInfo>() { 2700 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2701 return new ProcessErrorStateInfo(source); 2702 } 2703 public ProcessErrorStateInfo[] newArray(int size) { 2704 return new ProcessErrorStateInfo[size]; 2705 } 2706 }; 2707 2708 private ProcessErrorStateInfo(Parcel source) { 2709 readFromParcel(source); 2710 } 2711 } 2712 2713 /** 2714 * Returns a list of any processes that are currently in an error condition. The result 2715 * will be null if all processes are running properly at this time. 2716 * 2717 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2718 * current error conditions (it will not return an empty list). This list ordering is not 2719 * specified. 2720 */ 2721 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2722 try { 2723 return getService().getProcessesInErrorState(); 2724 } catch (RemoteException e) { 2725 throw e.rethrowFromSystemServer(); 2726 } 2727 } 2728 2729 /** 2730 * Information you can retrieve about a running process. 2731 */ 2732 public static class RunningAppProcessInfo implements Parcelable { 2733 /** 2734 * The name of the process that this object is associated with 2735 */ 2736 public String processName; 2737 2738 /** 2739 * The pid of this process; 0 if none 2740 */ 2741 public int pid; 2742 2743 /** 2744 * The user id of this process. 2745 */ 2746 public int uid; 2747 2748 /** 2749 * All packages that have been loaded into the process. 2750 */ 2751 public String pkgList[]; 2752 2753 /** 2754 * Constant for {@link #flags}: this is an app that is unable to 2755 * correctly save its state when going to the background, 2756 * so it can not be killed while in the background. 2757 * @hide 2758 */ 2759 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2760 2761 /** 2762 * Constant for {@link #flags}: this process is associated with a 2763 * persistent system app. 2764 * @hide 2765 */ 2766 public static final int FLAG_PERSISTENT = 1<<1; 2767 2768 /** 2769 * Constant for {@link #flags}: this process is associated with a 2770 * persistent system app. 2771 * @hide 2772 */ 2773 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2774 2775 /** 2776 * Flags of information. May be any of 2777 * {@link #FLAG_CANT_SAVE_STATE}. 2778 * @hide 2779 */ 2780 public int flags; 2781 2782 /** 2783 * Last memory trim level reported to the process: corresponds to 2784 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2785 * ComponentCallbacks2.onTrimMemory(int)}. 2786 */ 2787 public int lastTrimLevel; 2788 2789 /** 2790 * Constant for {@link #importance}: This process is running the 2791 * foreground UI; that is, it is the thing currently at the top of the screen 2792 * that the user is interacting with. 2793 */ 2794 public static final int IMPORTANCE_FOREGROUND = 100; 2795 2796 /** 2797 * Constant for {@link #importance}: This process is running a foreground 2798 * service, for example to perform music playback even while the user is 2799 * not immediately in the app. This generally indicates that the process 2800 * is doing something the user actively cares about. 2801 */ 2802 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2803 2804 /** 2805 * Constant for {@link #importance}: This process is running the foreground 2806 * UI, but the device is asleep so it is not visible to the user. This means 2807 * the user is not really aware of the process, because they can not see or 2808 * interact with it, but it is quite important because it what they expect to 2809 * return to once unlocking the device. 2810 */ 2811 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2812 2813 /** 2814 * Constant for {@link #importance}: This process is running something 2815 * that is actively visible to the user, though not in the immediate 2816 * foreground. This may be running a window that is behind the current 2817 * foreground (so paused and with its state saved, not interacting with 2818 * the user, but visible to them to some degree); it may also be running 2819 * other services under the system's control that it inconsiders important. 2820 */ 2821 public static final int IMPORTANCE_VISIBLE = 200; 2822 2823 /** 2824 * Constant for {@link #importance}: This process is not something the user 2825 * is directly aware of, but is otherwise perceptable to them to some degree. 2826 */ 2827 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2828 2829 /** 2830 * Constant for {@link #importance}: This process is running an 2831 * application that can not save its state, and thus can't be killed 2832 * while in the background. 2833 * @hide 2834 */ 2835 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2836 2837 /** 2838 * Constant for {@link #importance}: This process is contains services 2839 * that should remain running. These are background services apps have 2840 * started, not something the user is aware of, so they may be killed by 2841 * the system relatively freely (though it is generally desired that they 2842 * stay running as long as they want to). 2843 */ 2844 public static final int IMPORTANCE_SERVICE = 300; 2845 2846 /** 2847 * Constant for {@link #importance}: This process process contains 2848 * background code that is expendable. 2849 */ 2850 public static final int IMPORTANCE_BACKGROUND = 400; 2851 2852 /** 2853 * Constant for {@link #importance}: This process is empty of any 2854 * actively running code. 2855 */ 2856 public static final int IMPORTANCE_EMPTY = 500; 2857 2858 /** 2859 * Constant for {@link #importance}: This process does not exist. 2860 */ 2861 public static final int IMPORTANCE_GONE = 1000; 2862 2863 /** @hide */ 2864 public static int procStateToImportance(int procState) { 2865 if (procState == PROCESS_STATE_NONEXISTENT) { 2866 return IMPORTANCE_GONE; 2867 } else if (procState >= PROCESS_STATE_HOME) { 2868 return IMPORTANCE_BACKGROUND; 2869 } else if (procState >= PROCESS_STATE_SERVICE) { 2870 return IMPORTANCE_SERVICE; 2871 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2872 return IMPORTANCE_CANT_SAVE_STATE; 2873 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2874 return IMPORTANCE_PERCEPTIBLE; 2875 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2876 return IMPORTANCE_VISIBLE; 2877 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2878 return IMPORTANCE_TOP_SLEEPING; 2879 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2880 return IMPORTANCE_FOREGROUND_SERVICE; 2881 } else { 2882 return IMPORTANCE_FOREGROUND; 2883 } 2884 } 2885 2886 /** @hide */ 2887 public static int importanceToProcState(int importance) { 2888 if (importance == IMPORTANCE_GONE) { 2889 return PROCESS_STATE_NONEXISTENT; 2890 } else if (importance >= IMPORTANCE_BACKGROUND) { 2891 return PROCESS_STATE_HOME; 2892 } else if (importance >= IMPORTANCE_SERVICE) { 2893 return PROCESS_STATE_SERVICE; 2894 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 2895 return PROCESS_STATE_HEAVY_WEIGHT; 2896 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 2897 return PROCESS_STATE_IMPORTANT_BACKGROUND; 2898 } else if (importance >= IMPORTANCE_VISIBLE) { 2899 return PROCESS_STATE_IMPORTANT_FOREGROUND; 2900 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 2901 return PROCESS_STATE_TOP_SLEEPING; 2902 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 2903 return PROCESS_STATE_FOREGROUND_SERVICE; 2904 } else { 2905 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 2906 } 2907 } 2908 2909 /** 2910 * The relative importance level that the system places on this 2911 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2912 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2913 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2914 * constants are numbered so that "more important" values are always 2915 * smaller than "less important" values. 2916 */ 2917 public int importance; 2918 2919 /** 2920 * An additional ordering within a particular {@link #importance} 2921 * category, providing finer-grained information about the relative 2922 * utility of processes within a category. This number means nothing 2923 * except that a smaller values are more recently used (and thus 2924 * more important). Currently an LRU value is only maintained for 2925 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2926 * be maintained in the future. 2927 */ 2928 public int lru; 2929 2930 /** 2931 * Constant for {@link #importanceReasonCode}: nothing special has 2932 * been specified for the reason for this level. 2933 */ 2934 public static final int REASON_UNKNOWN = 0; 2935 2936 /** 2937 * Constant for {@link #importanceReasonCode}: one of the application's 2938 * content providers is being used by another process. The pid of 2939 * the client process is in {@link #importanceReasonPid} and the 2940 * target provider in this process is in 2941 * {@link #importanceReasonComponent}. 2942 */ 2943 public static final int REASON_PROVIDER_IN_USE = 1; 2944 2945 /** 2946 * Constant for {@link #importanceReasonCode}: one of the application's 2947 * content providers is being used by another process. The pid of 2948 * the client process is in {@link #importanceReasonPid} and the 2949 * target provider in this process is in 2950 * {@link #importanceReasonComponent}. 2951 */ 2952 public static final int REASON_SERVICE_IN_USE = 2; 2953 2954 /** 2955 * The reason for {@link #importance}, if any. 2956 */ 2957 public int importanceReasonCode; 2958 2959 /** 2960 * For the specified values of {@link #importanceReasonCode}, this 2961 * is the process ID of the other process that is a client of this 2962 * process. This will be 0 if no other process is using this one. 2963 */ 2964 public int importanceReasonPid; 2965 2966 /** 2967 * For the specified values of {@link #importanceReasonCode}, this 2968 * is the name of the component that is being used in this process. 2969 */ 2970 public ComponentName importanceReasonComponent; 2971 2972 /** 2973 * When {@link #importanceReasonPid} is non-0, this is the importance 2974 * of the other pid. @hide 2975 */ 2976 public int importanceReasonImportance; 2977 2978 /** 2979 * Current process state, as per PROCESS_STATE_* constants. 2980 * @hide 2981 */ 2982 public int processState; 2983 2984 public RunningAppProcessInfo() { 2985 importance = IMPORTANCE_FOREGROUND; 2986 importanceReasonCode = REASON_UNKNOWN; 2987 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 2988 } 2989 2990 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 2991 processName = pProcessName; 2992 pid = pPid; 2993 pkgList = pArr; 2994 } 2995 2996 public int describeContents() { 2997 return 0; 2998 } 2999 3000 public void writeToParcel(Parcel dest, int flags) { 3001 dest.writeString(processName); 3002 dest.writeInt(pid); 3003 dest.writeInt(uid); 3004 dest.writeStringArray(pkgList); 3005 dest.writeInt(this.flags); 3006 dest.writeInt(lastTrimLevel); 3007 dest.writeInt(importance); 3008 dest.writeInt(lru); 3009 dest.writeInt(importanceReasonCode); 3010 dest.writeInt(importanceReasonPid); 3011 ComponentName.writeToParcel(importanceReasonComponent, dest); 3012 dest.writeInt(importanceReasonImportance); 3013 dest.writeInt(processState); 3014 } 3015 3016 public void readFromParcel(Parcel source) { 3017 processName = source.readString(); 3018 pid = source.readInt(); 3019 uid = source.readInt(); 3020 pkgList = source.readStringArray(); 3021 flags = source.readInt(); 3022 lastTrimLevel = source.readInt(); 3023 importance = source.readInt(); 3024 lru = source.readInt(); 3025 importanceReasonCode = source.readInt(); 3026 importanceReasonPid = source.readInt(); 3027 importanceReasonComponent = ComponentName.readFromParcel(source); 3028 importanceReasonImportance = source.readInt(); 3029 processState = source.readInt(); 3030 } 3031 3032 public static final Creator<RunningAppProcessInfo> CREATOR = 3033 new Creator<RunningAppProcessInfo>() { 3034 public RunningAppProcessInfo createFromParcel(Parcel source) { 3035 return new RunningAppProcessInfo(source); 3036 } 3037 public RunningAppProcessInfo[] newArray(int size) { 3038 return new RunningAppProcessInfo[size]; 3039 } 3040 }; 3041 3042 private RunningAppProcessInfo(Parcel source) { 3043 readFromParcel(source); 3044 } 3045 } 3046 3047 /** 3048 * Returns a list of application processes installed on external media 3049 * that are running on the device. 3050 * 3051 * <p><b>Note: this method is only intended for debugging or building 3052 * a user-facing process management UI.</b></p> 3053 * 3054 * @return Returns a list of ApplicationInfo records, or null if none 3055 * This list ordering is not specified. 3056 * @hide 3057 */ 3058 public List<ApplicationInfo> getRunningExternalApplications() { 3059 try { 3060 return getService().getRunningExternalApplications(); 3061 } catch (RemoteException e) { 3062 throw e.rethrowFromSystemServer(); 3063 } 3064 } 3065 3066 /** 3067 * Sets the memory trim mode for a process and schedules a memory trim operation. 3068 * 3069 * <p><b>Note: this method is only intended for testing framework.</b></p> 3070 * 3071 * @return Returns true if successful. 3072 * @hide 3073 */ 3074 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3075 try { 3076 return getService().setProcessMemoryTrimLevel(process, userId, 3077 level); 3078 } catch (RemoteException e) { 3079 throw e.rethrowFromSystemServer(); 3080 } 3081 } 3082 3083 /** 3084 * Returns a list of application processes that are running on the device. 3085 * 3086 * <p><b>Note: this method is only intended for debugging or building 3087 * a user-facing process management UI.</b></p> 3088 * 3089 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3090 * running processes (it will not return an empty list). This list ordering is not 3091 * specified. 3092 */ 3093 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3094 try { 3095 return getService().getRunningAppProcesses(); 3096 } catch (RemoteException e) { 3097 throw e.rethrowFromSystemServer(); 3098 } 3099 } 3100 3101 /** 3102 * Return the importance of a given package name, based on the processes that are 3103 * currently running. The return value is one of the importance constants defined 3104 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3105 * processes that this package has code running inside of. If there are no processes 3106 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3107 * @hide 3108 */ 3109 @SystemApi @TestApi 3110 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3111 public int getPackageImportance(String packageName) { 3112 try { 3113 int procState = getService().getPackageProcessState(packageName, 3114 mContext.getOpPackageName()); 3115 return RunningAppProcessInfo.procStateToImportance(procState); 3116 } catch (RemoteException e) { 3117 throw e.rethrowFromSystemServer(); 3118 } 3119 } 3120 3121 /** 3122 * Callback to get reports about changes to the importance of a uid. Use with 3123 * {@link #addOnUidImportanceListener}. 3124 * @hide 3125 */ 3126 @SystemApi @TestApi 3127 public interface OnUidImportanceListener { 3128 /** 3129 * The importance if a given uid has changed. Will be one of the importance 3130 * values in {@link RunningAppProcessInfo}; 3131 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3132 * when the uid is no longer running at all. This callback will happen on a thread 3133 * from a thread pool, not the main UI thread. 3134 * @param uid The uid whose importance has changed. 3135 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3136 */ 3137 void onUidImportance(int uid, int importance); 3138 } 3139 3140 /** 3141 * Start monitoring changes to the imoportance of uids running in the system. 3142 * @param listener The listener callback that will receive change reports. 3143 * @param importanceCutpoint The level of importance in which the caller is interested 3144 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3145 * is used here, you will receive a call each time a uids importance transitions between 3146 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3147 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3148 * 3149 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3150 * permission to use this feature.</p> 3151 * 3152 * @throws IllegalArgumentException If the listener is already registered. 3153 * @throws SecurityException If the caller does not hold 3154 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3155 * @hide 3156 */ 3157 @SystemApi @TestApi 3158 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3159 int importanceCutpoint) { 3160 synchronized (this) { 3161 if (mImportanceListeners.containsKey(listener)) { 3162 throw new IllegalArgumentException("Listener already registered: " + listener); 3163 } 3164 // TODO: implement the cut point in the system process to avoid IPCs. 3165 UidObserver observer = new UidObserver(listener); 3166 try { 3167 getService().registerUidObserver(observer, 3168 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3169 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3170 mContext.getOpPackageName()); 3171 } catch (RemoteException e) { 3172 throw e.rethrowFromSystemServer(); 3173 } 3174 mImportanceListeners.put(listener, observer); 3175 } 3176 } 3177 3178 /** 3179 * Remove an importance listener that was previously registered with 3180 * {@link #addOnUidImportanceListener}. 3181 * 3182 * @throws IllegalArgumentException If the listener is not registered. 3183 * @hide 3184 */ 3185 @SystemApi @TestApi 3186 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3187 synchronized (this) { 3188 UidObserver observer = mImportanceListeners.remove(listener); 3189 if (observer == null) { 3190 throw new IllegalArgumentException("Listener not registered: " + listener); 3191 } 3192 try { 3193 getService().unregisterUidObserver(observer); 3194 } catch (RemoteException e) { 3195 throw e.rethrowFromSystemServer(); 3196 } 3197 } 3198 } 3199 3200 /** 3201 * Return global memory state information for the calling process. This 3202 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3203 * only fields that will be filled in are 3204 * {@link RunningAppProcessInfo#pid}, 3205 * {@link RunningAppProcessInfo#uid}, 3206 * {@link RunningAppProcessInfo#lastTrimLevel}, 3207 * {@link RunningAppProcessInfo#importance}, 3208 * {@link RunningAppProcessInfo#lru}, and 3209 * {@link RunningAppProcessInfo#importanceReasonCode}. 3210 */ 3211 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3212 try { 3213 getService().getMyMemoryState(outState); 3214 } catch (RemoteException e) { 3215 throw e.rethrowFromSystemServer(); 3216 } 3217 } 3218 3219 /** 3220 * Return information about the memory usage of one or more processes. 3221 * 3222 * <p><b>Note: this method is only intended for debugging or building 3223 * a user-facing process management UI.</b></p> 3224 * 3225 * @param pids The pids of the processes whose memory usage is to be 3226 * retrieved. 3227 * @return Returns an array of memory information, one for each 3228 * requested pid. 3229 */ 3230 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3231 try { 3232 return getService().getProcessMemoryInfo(pids); 3233 } catch (RemoteException e) { 3234 throw e.rethrowFromSystemServer(); 3235 } 3236 } 3237 3238 /** 3239 * @deprecated This is now just a wrapper for 3240 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3241 * is no longer available to applications because it allows them to 3242 * break other applications by removing their alarms, stopping their 3243 * services, etc. 3244 */ 3245 @Deprecated 3246 public void restartPackage(String packageName) { 3247 killBackgroundProcesses(packageName); 3248 } 3249 3250 /** 3251 * Have the system immediately kill all background processes associated 3252 * with the given package. This is the same as the kernel killing those 3253 * processes to reclaim memory; the system will take care of restarting 3254 * these processes in the future as needed. 3255 * 3256 * <p>You must hold the permission 3257 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3258 * call this method. 3259 * 3260 * @param packageName The name of the package whose processes are to 3261 * be killed. 3262 */ 3263 public void killBackgroundProcesses(String packageName) { 3264 try { 3265 getService().killBackgroundProcesses(packageName, 3266 UserHandle.myUserId()); 3267 } catch (RemoteException e) { 3268 throw e.rethrowFromSystemServer(); 3269 } 3270 } 3271 3272 /** 3273 * Kills the specified UID. 3274 * @param uid The UID to kill. 3275 * @param reason The reason for the kill. 3276 * 3277 * @hide 3278 */ 3279 @SystemApi 3280 @RequiresPermission(Manifest.permission.KILL_UID) 3281 public void killUid(int uid, String reason) { 3282 try { 3283 getService().killUid(UserHandle.getAppId(uid), 3284 UserHandle.getUserId(uid), reason); 3285 } catch (RemoteException e) { 3286 throw e.rethrowFromSystemServer(); 3287 } 3288 } 3289 3290 /** 3291 * Have the system perform a force stop of everything associated with 3292 * the given application package. All processes that share its uid 3293 * will be killed, all services it has running stopped, all activities 3294 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3295 * broadcast will be sent, so that any of its registered alarms can 3296 * be stopped, notifications removed, etc. 3297 * 3298 * <p>You must hold the permission 3299 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3300 * call this method. 3301 * 3302 * @param packageName The name of the package to be stopped. 3303 * @param userId The user for which the running package is to be stopped. 3304 * 3305 * @hide This is not available to third party applications due to 3306 * it allowing them to break other applications by stopping their 3307 * services, removing their alarms, etc. 3308 */ 3309 public void forceStopPackageAsUser(String packageName, int userId) { 3310 try { 3311 getService().forceStopPackage(packageName, userId); 3312 } catch (RemoteException e) { 3313 throw e.rethrowFromSystemServer(); 3314 } 3315 } 3316 3317 /** 3318 * @see #forceStopPackageAsUser(String, int) 3319 * @hide 3320 */ 3321 public void forceStopPackage(String packageName) { 3322 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3323 } 3324 3325 /** 3326 * Get the device configuration attributes. 3327 */ 3328 public ConfigurationInfo getDeviceConfigurationInfo() { 3329 try { 3330 return getService().getDeviceConfigurationInfo(); 3331 } catch (RemoteException e) { 3332 throw e.rethrowFromSystemServer(); 3333 } 3334 } 3335 3336 /** 3337 * Get the preferred density of icons for the launcher. This is used when 3338 * custom drawables are created (e.g., for shortcuts). 3339 * 3340 * @return density in terms of DPI 3341 */ 3342 public int getLauncherLargeIconDensity() { 3343 final Resources res = mContext.getResources(); 3344 final int density = res.getDisplayMetrics().densityDpi; 3345 final int sw = res.getConfiguration().smallestScreenWidthDp; 3346 3347 if (sw < 600) { 3348 // Smaller than approx 7" tablets, use the regular icon size. 3349 return density; 3350 } 3351 3352 switch (density) { 3353 case DisplayMetrics.DENSITY_LOW: 3354 return DisplayMetrics.DENSITY_MEDIUM; 3355 case DisplayMetrics.DENSITY_MEDIUM: 3356 return DisplayMetrics.DENSITY_HIGH; 3357 case DisplayMetrics.DENSITY_TV: 3358 return DisplayMetrics.DENSITY_XHIGH; 3359 case DisplayMetrics.DENSITY_HIGH: 3360 return DisplayMetrics.DENSITY_XHIGH; 3361 case DisplayMetrics.DENSITY_XHIGH: 3362 return DisplayMetrics.DENSITY_XXHIGH; 3363 case DisplayMetrics.DENSITY_XXHIGH: 3364 return DisplayMetrics.DENSITY_XHIGH * 2; 3365 default: 3366 // The density is some abnormal value. Return some other 3367 // abnormal value that is a reasonable scaling of it. 3368 return (int)((density*1.5f)+.5f); 3369 } 3370 } 3371 3372 /** 3373 * Get the preferred launcher icon size. This is used when custom drawables 3374 * are created (e.g., for shortcuts). 3375 * 3376 * @return dimensions of square icons in terms of pixels 3377 */ 3378 public int getLauncherLargeIconSize() { 3379 return getLauncherLargeIconSizeInner(mContext); 3380 } 3381 3382 static int getLauncherLargeIconSizeInner(Context context) { 3383 final Resources res = context.getResources(); 3384 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3385 final int sw = res.getConfiguration().smallestScreenWidthDp; 3386 3387 if (sw < 600) { 3388 // Smaller than approx 7" tablets, use the regular icon size. 3389 return size; 3390 } 3391 3392 final int density = res.getDisplayMetrics().densityDpi; 3393 3394 switch (density) { 3395 case DisplayMetrics.DENSITY_LOW: 3396 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3397 case DisplayMetrics.DENSITY_MEDIUM: 3398 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3399 case DisplayMetrics.DENSITY_TV: 3400 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3401 case DisplayMetrics.DENSITY_HIGH: 3402 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3403 case DisplayMetrics.DENSITY_XHIGH: 3404 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3405 case DisplayMetrics.DENSITY_XXHIGH: 3406 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3407 default: 3408 // The density is some abnormal value. Return some other 3409 // abnormal value that is a reasonable scaling of it. 3410 return (int)((size*1.5f) + .5f); 3411 } 3412 } 3413 3414 /** 3415 * Returns "true" if the user interface is currently being messed with 3416 * by a monkey. 3417 */ 3418 public static boolean isUserAMonkey() { 3419 try { 3420 return getService().isUserAMonkey(); 3421 } catch (RemoteException e) { 3422 throw e.rethrowFromSystemServer(); 3423 } 3424 } 3425 3426 /** 3427 * Returns "true" if device is running in a test harness. 3428 */ 3429 public static boolean isRunningInTestHarness() { 3430 return SystemProperties.getBoolean("ro.test_harness", false); 3431 } 3432 3433 /** 3434 * Returns the launch count of each installed package. 3435 * 3436 * @hide 3437 */ 3438 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3439 try { 3440 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3441 ServiceManager.getService("usagestats")); 3442 if (usageStatsService == null) { 3443 return new HashMap<String, Integer>(); 3444 } 3445 3446 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3447 ActivityThread.currentPackageName()); 3448 if (allPkgUsageStats == null) { 3449 return new HashMap<String, Integer>(); 3450 } 3451 3452 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3453 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3454 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3455 } 3456 3457 return launchCounts; 3458 } catch (RemoteException e) { 3459 Log.w(TAG, "Could not query launch counts", e); 3460 return new HashMap<String, Integer>(); 3461 } 3462 }*/ 3463 3464 /** @hide */ 3465 public static int checkComponentPermission(String permission, int uid, 3466 int owningUid, boolean exported) { 3467 // Root, system server get to do everything. 3468 final int appId = UserHandle.getAppId(uid); 3469 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3470 return PackageManager.PERMISSION_GRANTED; 3471 } 3472 // Isolated processes don't get any permissions. 3473 if (UserHandle.isIsolated(uid)) { 3474 return PackageManager.PERMISSION_DENIED; 3475 } 3476 // If there is a uid that owns whatever is being accessed, it has 3477 // blanket access to it regardless of the permissions it requires. 3478 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3479 return PackageManager.PERMISSION_GRANTED; 3480 } 3481 // If the target is not exported, then nobody else can get to it. 3482 if (!exported) { 3483 /* 3484 RuntimeException here = new RuntimeException("here"); 3485 here.fillInStackTrace(); 3486 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3487 here); 3488 */ 3489 return PackageManager.PERMISSION_DENIED; 3490 } 3491 if (permission == null) { 3492 return PackageManager.PERMISSION_GRANTED; 3493 } 3494 try { 3495 return AppGlobals.getPackageManager() 3496 .checkUidPermission(permission, uid); 3497 } catch (RemoteException e) { 3498 throw e.rethrowFromSystemServer(); 3499 } 3500 } 3501 3502 /** @hide */ 3503 public static int checkUidPermission(String permission, int uid) { 3504 try { 3505 return AppGlobals.getPackageManager() 3506 .checkUidPermission(permission, uid); 3507 } catch (RemoteException e) { 3508 throw e.rethrowFromSystemServer(); 3509 } 3510 } 3511 3512 /** 3513 * @hide 3514 * Helper for dealing with incoming user arguments to system service calls. 3515 * Takes care of checking permissions and converting USER_CURRENT to the 3516 * actual current user. 3517 * 3518 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3519 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3520 * @param userId The user id argument supplied by the caller -- this is the user 3521 * they want to run as. 3522 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3523 * to get a USER_ALL returned and deal with it correctly. If false, 3524 * an exception will be thrown if USER_ALL is supplied. 3525 * @param requireFull If true, the caller must hold 3526 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3527 * different user than their current process; otherwise they must hold 3528 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3529 * @param name Optional textual name of the incoming call; only for generating error messages. 3530 * @param callerPackage Optional package name of caller; only for error messages. 3531 * 3532 * @return Returns the user ID that the call should run as. Will always be a concrete 3533 * user number, unless <var>allowAll</var> is true in which case it could also be 3534 * USER_ALL. 3535 */ 3536 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3537 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3538 if (UserHandle.getUserId(callingUid) == userId) { 3539 return userId; 3540 } 3541 try { 3542 return getService().handleIncomingUser(callingPid, 3543 callingUid, userId, allowAll, requireFull, name, callerPackage); 3544 } catch (RemoteException e) { 3545 throw e.rethrowFromSystemServer(); 3546 } 3547 } 3548 3549 /** 3550 * Gets the userId of the current foreground user. Requires system permissions. 3551 * @hide 3552 */ 3553 @SystemApi 3554 public static int getCurrentUser() { 3555 UserInfo ui; 3556 try { 3557 ui = getService().getCurrentUser(); 3558 return ui != null ? ui.id : 0; 3559 } catch (RemoteException e) { 3560 throw e.rethrowFromSystemServer(); 3561 } 3562 } 3563 3564 /** 3565 * @param userid the user's id. Zero indicates the default user. 3566 * @hide 3567 */ 3568 public boolean switchUser(int userid) { 3569 try { 3570 return getService().switchUser(userid); 3571 } catch (RemoteException e) { 3572 throw e.rethrowFromSystemServer(); 3573 } 3574 } 3575 3576 /** 3577 * Logs out current current foreground user by switching to the system user and stopping the 3578 * user being switched from. 3579 * @hide 3580 */ 3581 public static void logoutCurrentUser() { 3582 int currentUser = ActivityManager.getCurrentUser(); 3583 if (currentUser != UserHandle.USER_SYSTEM) { 3584 try { 3585 getService().switchUser(UserHandle.USER_SYSTEM); 3586 getService().stopUser(currentUser, /* force= */ false, null); 3587 } catch (RemoteException e) { 3588 e.rethrowFromSystemServer(); 3589 } 3590 } 3591 } 3592 3593 /** {@hide} */ 3594 public static final int FLAG_OR_STOPPED = 1 << 0; 3595 /** {@hide} */ 3596 public static final int FLAG_AND_LOCKED = 1 << 1; 3597 /** {@hide} */ 3598 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3599 /** {@hide} */ 3600 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3601 3602 /** 3603 * Return whether the given user is actively running. This means that 3604 * the user is in the "started" state, not "stopped" -- it is currently 3605 * allowed to run code through scheduled alarms, receiving broadcasts, 3606 * etc. A started user may be either the current foreground user or a 3607 * background user; the result here does not distinguish between the two. 3608 * @param userId the user's id. Zero indicates the default user. 3609 * @hide 3610 */ 3611 public boolean isUserRunning(int userId) { 3612 try { 3613 return getService().isUserRunning(userId, 0); 3614 } catch (RemoteException e) { 3615 throw e.rethrowFromSystemServer(); 3616 } 3617 } 3618 3619 /** {@hide} */ 3620 public boolean isVrModePackageEnabled(ComponentName component) { 3621 try { 3622 return getService().isVrModePackageEnabled(component); 3623 } catch (RemoteException e) { 3624 throw e.rethrowFromSystemServer(); 3625 } 3626 } 3627 3628 /** 3629 * Perform a system dump of various state associated with the given application 3630 * package name. This call blocks while the dump is being performed, so should 3631 * not be done on a UI thread. The data will be written to the given file 3632 * descriptor as text. An application must hold the 3633 * {@link android.Manifest.permission#DUMP} permission to make this call. 3634 * @param fd The file descriptor that the dump should be written to. The file 3635 * descriptor is <em>not</em> closed by this function; the caller continues to 3636 * own it. 3637 * @param packageName The name of the package that is to be dumped. 3638 */ 3639 public void dumpPackageState(FileDescriptor fd, String packageName) { 3640 dumpPackageStateStatic(fd, packageName); 3641 } 3642 3643 /** 3644 * @hide 3645 */ 3646 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3647 FileOutputStream fout = new FileOutputStream(fd); 3648 PrintWriter pw = new FastPrintWriter(fout); 3649 dumpService(pw, fd, "package", new String[] { packageName }); 3650 pw.println(); 3651 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3652 "-a", "package", packageName }); 3653 pw.println(); 3654 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3655 pw.println(); 3656 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3657 pw.println(); 3658 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3659 pw.println(); 3660 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3661 pw.flush(); 3662 } 3663 3664 /** 3665 * @hide 3666 */ 3667 public static boolean isSystemReady() { 3668 if (!sSystemReady) { 3669 if (ActivityThread.isSystem()) { 3670 sSystemReady = 3671 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3672 } else { 3673 // Since this is being called from outside system server, system should be 3674 // ready by now. 3675 sSystemReady = true; 3676 } 3677 } 3678 return sSystemReady; 3679 } 3680 3681 /** 3682 * @hide 3683 */ 3684 public static void broadcastStickyIntent(Intent intent, int userId) { 3685 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3686 } 3687 3688 /** 3689 * Convenience for sending a sticky broadcast. For internal use only. 3690 * 3691 * @hide 3692 */ 3693 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3694 try { 3695 getService().broadcastIntent( 3696 null, intent, null, null, Activity.RESULT_OK, null, null, 3697 null /*permission*/, appOp, null, false, true, userId); 3698 } catch (RemoteException ex) { 3699 } 3700 } 3701 3702 /** 3703 * @hide 3704 */ 3705 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3706 String tag) { 3707 try { 3708 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3709 sourceUid, sourcePkg, tag); 3710 } catch (RemoteException ex) { 3711 } 3712 } 3713 3714 /** 3715 * @hide 3716 */ 3717 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3718 try { 3719 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3720 } catch (RemoteException ex) { 3721 } 3722 } 3723 3724 /** 3725 * @hide 3726 */ 3727 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3728 try { 3729 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3730 } catch (RemoteException ex) { 3731 } 3732 } 3733 3734 /** 3735 * @hide 3736 */ 3737 public static IActivityManager getService() { 3738 return IActivityManagerSingleton.get(); 3739 } 3740 3741 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3742 new Singleton<IActivityManager>() { 3743 @Override 3744 protected IActivityManager create() { 3745 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3746 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3747 return am; 3748 } 3749 }; 3750 3751 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3752 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3753 IBinder service = ServiceManager.checkService(name); 3754 if (service == null) { 3755 pw.println(" (Service not found)"); 3756 return; 3757 } 3758 TransferPipe tp = null; 3759 try { 3760 pw.flush(); 3761 tp = new TransferPipe(); 3762 tp.setBufferPrefix(" "); 3763 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3764 tp.go(fd, 10000); 3765 } catch (Throwable e) { 3766 if (tp != null) { 3767 tp.kill(); 3768 } 3769 pw.println("Failure dumping service:"); 3770 e.printStackTrace(pw); 3771 } 3772 } 3773 3774 /** 3775 * Request that the system start watching for the calling process to exceed a pss 3776 * size as given here. Once called, the system will look for any occasions where it 3777 * sees the associated process with a larger pss size and, when this happens, automatically 3778 * pull a heap dump from it and allow the user to share the data. Note that this request 3779 * continues running even if the process is killed and restarted. To remove the watch, 3780 * use {@link #clearWatchHeapLimit()}. 3781 * 3782 * <p>This API only work if the calling process has been marked as 3783 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3784 * (userdebug or eng) build.</p> 3785 * 3786 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3787 * handle heap limit reports themselves.</p> 3788 * 3789 * @param pssSize The size in bytes to set the limit at. 3790 */ 3791 public void setWatchHeapLimit(long pssSize) { 3792 try { 3793 getService().setDumpHeapDebugLimit(null, 0, pssSize, 3794 mContext.getPackageName()); 3795 } catch (RemoteException e) { 3796 throw e.rethrowFromSystemServer(); 3797 } 3798 } 3799 3800 /** 3801 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3802 * If your package has an activity handling this action, it will be launched with the 3803 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3804 * match the activty must support this action and a MIME type of "*/*". 3805 */ 3806 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3807 3808 /** 3809 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3810 */ 3811 public void clearWatchHeapLimit() { 3812 try { 3813 getService().setDumpHeapDebugLimit(null, 0, 0, null); 3814 } catch (RemoteException e) { 3815 throw e.rethrowFromSystemServer(); 3816 } 3817 } 3818 3819 /** 3820 * @hide 3821 */ 3822 public void startLockTaskMode(int taskId) { 3823 try { 3824 getService().startLockTaskModeById(taskId); 3825 } catch (RemoteException e) { 3826 throw e.rethrowFromSystemServer(); 3827 } 3828 } 3829 3830 /** 3831 * @hide 3832 */ 3833 public void stopLockTaskMode() { 3834 try { 3835 getService().stopLockTaskMode(); 3836 } catch (RemoteException e) { 3837 throw e.rethrowFromSystemServer(); 3838 } 3839 } 3840 3841 /** 3842 * Return whether currently in lock task mode. When in this mode 3843 * no new tasks can be created or switched to. 3844 * 3845 * @see Activity#startLockTask() 3846 * 3847 * @deprecated Use {@link #getLockTaskModeState} instead. 3848 */ 3849 @Deprecated 3850 public boolean isInLockTaskMode() { 3851 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3852 } 3853 3854 /** 3855 * Return the current state of task locking. The three possible outcomes 3856 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3857 * and {@link #LOCK_TASK_MODE_PINNED}. 3858 * 3859 * @see Activity#startLockTask() 3860 */ 3861 public int getLockTaskModeState() { 3862 try { 3863 return getService().getLockTaskModeState(); 3864 } catch (RemoteException e) { 3865 throw e.rethrowFromSystemServer(); 3866 } 3867 } 3868 3869 /** 3870 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 3871 * thread can be a VR thread in a process at a time, and that thread may be subject to 3872 * restrictions on the amount of time it can run. 3873 * 3874 * To reset the VR thread for an application, a tid of 0 can be passed. 3875 * 3876 * @see android.os.Process#myTid() 3877 * @param tid tid of the VR thread 3878 */ 3879 public static void setVrThread(int tid) { 3880 try { 3881 getService().setVrThread(tid); 3882 } catch (RemoteException e) { 3883 // pass 3884 } 3885 } 3886 3887 /** 3888 * The AppTask allows you to manage your own application's tasks. 3889 * See {@link android.app.ActivityManager#getAppTasks()} 3890 */ 3891 public static class AppTask { 3892 private IAppTask mAppTaskImpl; 3893 3894 /** @hide */ 3895 public AppTask(IAppTask task) { 3896 mAppTaskImpl = task; 3897 } 3898 3899 /** 3900 * Finishes all activities in this task and removes it from the recent tasks list. 3901 */ 3902 public void finishAndRemoveTask() { 3903 try { 3904 mAppTaskImpl.finishAndRemoveTask(); 3905 } catch (RemoteException e) { 3906 throw e.rethrowFromSystemServer(); 3907 } 3908 } 3909 3910 /** 3911 * Get the RecentTaskInfo associated with this task. 3912 * 3913 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3914 */ 3915 public RecentTaskInfo getTaskInfo() { 3916 try { 3917 return mAppTaskImpl.getTaskInfo(); 3918 } catch (RemoteException e) { 3919 throw e.rethrowFromSystemServer(); 3920 } 3921 } 3922 3923 /** 3924 * Bring this task to the foreground. If it contains activities, they will be 3925 * brought to the foreground with it and their instances re-created if needed. 3926 * If it doesn't contain activities, the root activity of the task will be 3927 * re-launched. 3928 */ 3929 public void moveToFront() { 3930 try { 3931 mAppTaskImpl.moveToFront(); 3932 } catch (RemoteException e) { 3933 throw e.rethrowFromSystemServer(); 3934 } 3935 } 3936 3937 /** 3938 * Start an activity in this task. Brings the task to the foreground. If this task 3939 * is not currently active (that is, its id < 0), then a new activity for the given 3940 * Intent will be launched as the root of the task and the task brought to the 3941 * foreground. Otherwise, if this task is currently active and the Intent does not specify 3942 * an activity to launch in a new task, then a new activity for the given Intent will 3943 * be launched on top of the task and the task brought to the foreground. If this 3944 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 3945 * or would otherwise be launched in to a new task, then the activity not launched but 3946 * this task be brought to the foreground and a new intent delivered to the top 3947 * activity if appropriate. 3948 * 3949 * <p>In other words, you generally want to use an Intent here that does not specify 3950 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 3951 * and let the system do the right thing.</p> 3952 * 3953 * @param intent The Intent describing the new activity to be launched on the task. 3954 * @param options Optional launch options. 3955 * 3956 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 3957 */ 3958 public void startActivity(Context context, Intent intent, Bundle options) { 3959 ActivityThread thread = ActivityThread.currentActivityThread(); 3960 thread.getInstrumentation().execStartActivityFromAppTask(context, 3961 thread.getApplicationThread(), mAppTaskImpl, intent, options); 3962 } 3963 3964 /** 3965 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 3966 * Intent of this AppTask. 3967 * 3968 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 3969 * be set; otherwise, it will be cleared. 3970 */ 3971 public void setExcludeFromRecents(boolean exclude) { 3972 try { 3973 mAppTaskImpl.setExcludeFromRecents(exclude); 3974 } catch (RemoteException e) { 3975 throw e.rethrowFromSystemServer(); 3976 } 3977 } 3978 } 3979} 3980