ActivityManager.java revision e5dfa979cb3d94dad69e4245de37b7d5b95be184
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 * <p> 84 * This class gives information about, and interacts 85 * with, activities, services, and the containing 86 * process. 87 * </p> 88 * 89 * <p> 90 * A number of the methods in this class are for 91 * debugging or informational purposes and they should 92 * not be used to affect any runtime behavior of 93 * your app. These methods are called out as such in 94 * the method level documentation. 95 * </p> 96 * 97 *<p> 98 * Most application developers should not have the need to 99 * use this class, most of whose methods are for specialized 100 * use cases. However, a few methods are more broadly applicable. 101 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 102 * enables your app to detect whether it is running on a low-memory device, 103 * and behave accordingly. 104 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 105 * is for apps with reset-data functionality. 106 * </p> 107 * 108 * <p> 109 * In some special use cases, where an app interacts with 110 * its Task stack, the app may use the 111 * {@link android.app.ActivityManager.AppTask} and 112 * {@link android.app.ActivityManager.RecentTaskInfo} inner 113 * classes. However, in general, the methods in this class should 114 * be used for testing and debugging purposes only. 115 * </p> 116 */ 117public class ActivityManager { 118 private static String TAG = "ActivityManager"; 119 120 private static int gMaxRecentTasks = -1; 121 122 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 123 124 private final Context mContext; 125 126 private static volatile boolean sSystemReady = false; 127 128 static final class UidObserver extends IUidObserver.Stub { 129 final OnUidImportanceListener mListener; 130 131 UidObserver(OnUidImportanceListener listener) { 132 mListener = listener; 133 } 134 135 @Override 136 public void onUidStateChanged(int uid, int procState) { 137 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportance(procState)); 138 } 139 140 @Override 141 public void onUidGone(int uid, boolean disabled) { 142 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 143 } 144 145 @Override 146 public void onUidActive(int uid) { 147 } 148 149 @Override 150 public void onUidIdle(int uid, boolean disabled) { 151 } 152 } 153 154 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 155 156 /** 157 * Defines acceptable types of bugreports. 158 * @hide 159 */ 160 @Retention(RetentionPolicy.SOURCE) 161 @IntDef({ 162 BUGREPORT_OPTION_FULL, 163 BUGREPORT_OPTION_INTERACTIVE, 164 BUGREPORT_OPTION_REMOTE, 165 BUGREPORT_OPTION_WEAR, 166 BUGREPORT_OPTION_TELEPHONY 167 }) 168 public @interface BugreportMode {} 169 /** 170 * Takes a bugreport without user interference (and hence causing less 171 * interference to the system), but includes all sections. 172 * @hide 173 */ 174 public static final int BUGREPORT_OPTION_FULL = 0; 175 /** 176 * Allows user to monitor progress and enter additional data; might not include all 177 * sections. 178 * @hide 179 */ 180 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 181 /** 182 * Takes a bugreport requested remotely by administrator of the Device Owner app, 183 * not the device's user. 184 * @hide 185 */ 186 public static final int BUGREPORT_OPTION_REMOTE = 2; 187 /** 188 * Takes a bugreport on a wearable device. 189 * @hide 190 */ 191 public static final int BUGREPORT_OPTION_WEAR = 3; 192 193 /** 194 * Takes a lightweight version of bugreport that only includes a few, urgent sections 195 * used to report telephony bugs. 196 * @hide 197 */ 198 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 199 200 /** 201 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 202 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 203 * uninstalled in lieu of the declaring one. The package named here must be 204 * signed with the same certificate as the one declaring the {@code <meta-data>}. 205 */ 206 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 207 208 /** 209 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 210 * @hide 211 */ 212 public static final int START_VOICE_HIDDEN_SESSION = -10; 213 214 /** 215 * Result for IActivityManager.startVoiceActivity: active session does not match 216 * the requesting token. 217 * @hide 218 */ 219 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 220 221 /** 222 * Result for IActivityManager.startActivity: trying to start a background user 223 * activity that shouldn't be displayed for all users. 224 * @hide 225 */ 226 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 227 228 /** 229 * Result for IActivityManager.startActivity: trying to start an activity under voice 230 * control when that activity does not support the VOICE category. 231 * @hide 232 */ 233 public static final int START_NOT_VOICE_COMPATIBLE = -7; 234 235 /** 236 * Result for IActivityManager.startActivity: an error where the 237 * start had to be canceled. 238 * @hide 239 */ 240 public static final int START_CANCELED = -6; 241 242 /** 243 * Result for IActivityManager.startActivity: an error where the 244 * thing being started is not an activity. 245 * @hide 246 */ 247 public static final int START_NOT_ACTIVITY = -5; 248 249 /** 250 * Result for IActivityManager.startActivity: an error where the 251 * caller does not have permission to start the activity. 252 * @hide 253 */ 254 public static final int START_PERMISSION_DENIED = -4; 255 256 /** 257 * Result for IActivityManager.startActivity: an error where the 258 * caller has requested both to forward a result and to receive 259 * a result. 260 * @hide 261 */ 262 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 263 264 /** 265 * Result for IActivityManager.startActivity: an error where the 266 * requested class is not found. 267 * @hide 268 */ 269 public static final int START_CLASS_NOT_FOUND = -2; 270 271 /** 272 * Result for IActivityManager.startActivity: an error where the 273 * given Intent could not be resolved to an activity. 274 * @hide 275 */ 276 public static final int START_INTENT_NOT_RESOLVED = -1; 277 278 /** 279 * Result for IActivityManaqer.startActivity: the activity was started 280 * successfully as normal. 281 * @hide 282 */ 283 public static final int START_SUCCESS = 0; 284 285 /** 286 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 287 * be executed if it is the recipient, and that is indeed the case. 288 * @hide 289 */ 290 public static final int START_RETURN_INTENT_TO_CALLER = 1; 291 292 /** 293 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 294 * a task was simply brought to the foreground. 295 * @hide 296 */ 297 public static final int START_TASK_TO_FRONT = 2; 298 299 /** 300 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 301 * the given Intent was given to the existing top activity. 302 * @hide 303 */ 304 public static final int START_DELIVERED_TO_TOP = 3; 305 306 /** 307 * Result for IActivityManaqer.startActivity: request was canceled because 308 * app switches are temporarily canceled to ensure the user's last request 309 * (such as pressing home) is performed. 310 * @hide 311 */ 312 public static final int START_SWITCHES_CANCELED = 4; 313 314 /** 315 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 316 * while in Lock Task Mode. 317 * @hide 318 */ 319 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 320 321 /** 322 * Flag for IActivityManaqer.startActivity: do special start mode where 323 * a new activity is launched only if it is needed. 324 * @hide 325 */ 326 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 327 328 /** 329 * Flag for IActivityManaqer.startActivity: launch the app for 330 * debugging. 331 * @hide 332 */ 333 public static final int START_FLAG_DEBUG = 1<<1; 334 335 /** 336 * Flag for IActivityManaqer.startActivity: launch the app for 337 * allocation tracking. 338 * @hide 339 */ 340 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 341 342 /** 343 * Flag for IActivityManaqer.startActivity: launch the app with 344 * native debugging support. 345 * @hide 346 */ 347 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 348 349 /** 350 * Result for IActivityManaqer.broadcastIntent: success! 351 * @hide 352 */ 353 public static final int BROADCAST_SUCCESS = 0; 354 355 /** 356 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 357 * a sticky intent without appropriate permission. 358 * @hide 359 */ 360 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 361 362 /** 363 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 364 * to a stopped user. Fail. 365 * @hide 366 */ 367 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 368 369 /** 370 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 371 * for a sendBroadcast operation. 372 * @hide 373 */ 374 public static final int INTENT_SENDER_BROADCAST = 1; 375 376 /** 377 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 378 * for a startActivity operation. 379 * @hide 380 */ 381 public static final int INTENT_SENDER_ACTIVITY = 2; 382 383 /** 384 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 385 * for an activity result operation. 386 * @hide 387 */ 388 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 389 390 /** 391 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 392 * for a startService operation. 393 * @hide 394 */ 395 public static final int INTENT_SENDER_SERVICE = 4; 396 397 /** @hide User operation call: success! */ 398 public static final int USER_OP_SUCCESS = 0; 399 400 /** @hide User operation call: given user id is not known. */ 401 public static final int USER_OP_UNKNOWN_USER = -1; 402 403 /** @hide User operation call: given user id is the current user, can't be stopped. */ 404 public static final int USER_OP_IS_CURRENT = -2; 405 406 /** @hide User operation call: system user can't be stopped. */ 407 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 408 409 /** @hide User operation call: one of related users cannot be stopped. */ 410 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 411 412 /** @hide Not a real process state. */ 413 public static final int PROCESS_STATE_UNKNOWN = -1; 414 415 /** @hide Process is a persistent system process. */ 416 public static final int PROCESS_STATE_PERSISTENT = 0; 417 418 /** @hide Process is a persistent system process and is doing UI. */ 419 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 420 421 /** @hide Process is hosting the current top activities. Note that this covers 422 * all activities that are visible to the user. */ 423 public static final int PROCESS_STATE_TOP = 2; 424 425 /** @hide Process is hosting a foreground service due to a system binding. */ 426 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 427 428 /** @hide Process is hosting a foreground service. */ 429 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 430 431 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 432 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 433 434 /** @hide Process is important to the user, and something they are aware of. */ 435 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 436 437 /** @hide Process is important to the user, but not something they are aware of. */ 438 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 439 440 /** @hide Process is in the background running a backup/restore operation. */ 441 public static final int PROCESS_STATE_BACKUP = 8; 442 443 /** @hide Process is in the background, but it can't restore its state so we want 444 * to try to avoid killing it. */ 445 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 446 447 /** @hide Process is in the background running a service. Unlike oom_adj, this level 448 * is used for both the normal running in background state and the executing 449 * operations state. */ 450 public static final int PROCESS_STATE_SERVICE = 10; 451 452 /** @hide Process is in the background running a receiver. Note that from the 453 * perspective of oom_adj receivers run at a higher foreground level, but for our 454 * prioritization here that is not necessary and putting them below services means 455 * many fewer changes in some process states as they receive broadcasts. */ 456 public static final int PROCESS_STATE_RECEIVER = 11; 457 458 /** @hide Process is in the background but hosts the home activity. */ 459 public static final int PROCESS_STATE_HOME = 12; 460 461 /** @hide Process is in the background but hosts the last shown activity. */ 462 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 463 464 /** @hide Process is being cached for later use and contains activities. */ 465 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 466 467 /** @hide Process is being cached for later use and is a client of another cached 468 * process that contains activities. */ 469 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 470 471 /** @hide Process is being cached for later use and is empty. */ 472 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 473 474 /** @hide Process does not exist. */ 475 public static final int PROCESS_STATE_NONEXISTENT = 17; 476 477 /** @hide The lowest process state number */ 478 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 479 480 /** @hide The highest process state number */ 481 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 482 483 /** @hide Should this process state be considered a background state? */ 484 public static final boolean isProcStateBackground(int procState) { 485 return procState >= PROCESS_STATE_BACKUP; 486 } 487 488 /** @hide requestType for assist context: only basic information. */ 489 public static final int ASSIST_CONTEXT_BASIC = 0; 490 491 /** @hide requestType for assist context: generate full AssistStructure. */ 492 public static final int ASSIST_CONTEXT_FULL = 1; 493 494 /** @hide requestType for assist context: generate full AssistStructure for auto-fill. */ 495 public static final int ASSIST_CONTEXT_AUTO_FILL = 2; 496 497 /** @hide requestType for assist context: generate full AssistStructure for auto-fill save. */ 498 public static final int ASSIST_CONTEXT_AUTO_FILL_SAVE = 3; 499 500 /** @hide Flag for registerUidObserver: report changes in process state. */ 501 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 502 503 /** @hide Flag for registerUidObserver: report uid gone. */ 504 public static final int UID_OBSERVER_GONE = 1<<1; 505 506 /** @hide Flag for registerUidObserver: report uid has become idle. */ 507 public static final int UID_OBSERVER_IDLE = 1<<2; 508 509 /** @hide Flag for registerUidObserver: report uid has become active. */ 510 public static final int UID_OBSERVER_ACTIVE = 1<<3; 511 512 /** @hide Mode for {@link IActivityManager#getAppStartMode}: normal free-to-run operation. */ 513 public static final int APP_START_MODE_NORMAL = 0; 514 515 /** @hide Mode for {@link IActivityManager#getAppStartMode}: delay running until later. */ 516 public static final int APP_START_MODE_DELAYED = 1; 517 518 /** @hide Mode for {@link IActivityManager#getAppStartMode}: disable/cancel pending 519 * launches. */ 520 public static final int APP_START_MODE_DISABLED = 2; 521 522 /** 523 * Lock task mode is not active. 524 */ 525 public static final int LOCK_TASK_MODE_NONE = 0; 526 527 /** 528 * Full lock task mode is active. 529 */ 530 public static final int LOCK_TASK_MODE_LOCKED = 1; 531 532 /** 533 * App pinning mode is active. 534 */ 535 public static final int LOCK_TASK_MODE_PINNED = 2; 536 537 Point mAppTaskThumbnailSize; 538 539 /*package*/ ActivityManager(Context context, Handler handler) { 540 mContext = context; 541 } 542 543 /** 544 * Screen compatibility mode: the application most always run in 545 * compatibility mode. 546 * @hide 547 */ 548 public static final int COMPAT_MODE_ALWAYS = -1; 549 550 /** 551 * Screen compatibility mode: the application can never run in 552 * compatibility mode. 553 * @hide 554 */ 555 public static final int COMPAT_MODE_NEVER = -2; 556 557 /** 558 * Screen compatibility mode: unknown. 559 * @hide 560 */ 561 public static final int COMPAT_MODE_UNKNOWN = -3; 562 563 /** 564 * Screen compatibility mode: the application currently has compatibility 565 * mode disabled. 566 * @hide 567 */ 568 public static final int COMPAT_MODE_DISABLED = 0; 569 570 /** 571 * Screen compatibility mode: the application currently has compatibility 572 * mode enabled. 573 * @hide 574 */ 575 public static final int COMPAT_MODE_ENABLED = 1; 576 577 /** 578 * Screen compatibility mode: request to toggle the application's 579 * compatibility mode. 580 * @hide 581 */ 582 public static final int COMPAT_MODE_TOGGLE = 2; 583 584 /** @hide */ 585 public static class StackId { 586 /** Invalid stack ID. */ 587 public static final int INVALID_STACK_ID = -1; 588 589 /** First static stack ID. */ 590 public static final int FIRST_STATIC_STACK_ID = 0; 591 592 /** Home activity stack ID. */ 593 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 594 595 /** ID of stack where fullscreen activities are normally launched into. */ 596 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 597 598 /** ID of stack where freeform/resized activities are normally launched into. */ 599 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 600 601 /** ID of stack that occupies a dedicated region of the screen. */ 602 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 603 604 /** ID of stack that always on top (always visible) when it exist. */ 605 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 606 607 /** Recents activity stack ID. */ 608 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 609 610 /** Last static stack stack ID. */ 611 public static final int LAST_STATIC_STACK_ID = RECENTS_STACK_ID; 612 613 /** Start of ID range used by stacks that are created dynamically. */ 614 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 615 616 public static boolean isStaticStack(int stackId) { 617 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 618 } 619 620 /** 621 * Returns true if the activities contained in the input stack display a shadow around 622 * their border. 623 */ 624 public static boolean hasWindowShadow(int stackId) { 625 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 626 } 627 628 /** 629 * Returns true if the activities contained in the input stack display a decor view. 630 */ 631 public static boolean hasWindowDecor(int stackId) { 632 return stackId == FREEFORM_WORKSPACE_STACK_ID; 633 } 634 635 /** 636 * Returns true if the tasks contained in the stack can be resized independently of the 637 * stack. 638 */ 639 public static boolean isTaskResizeAllowed(int stackId) { 640 return stackId == FREEFORM_WORKSPACE_STACK_ID; 641 } 642 643 /** Returns true if the task bounds should persist across power cycles. */ 644 public static boolean persistTaskBounds(int stackId) { 645 return stackId == FREEFORM_WORKSPACE_STACK_ID; 646 } 647 648 /** 649 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 650 */ 651 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 652 return stackId == PINNED_STACK_ID; 653 } 654 655 /** 656 * Returns true if we try to maintain focus in the current stack when the top activity 657 * finishes. 658 */ 659 public static boolean keepFocusInStackIfPossible(int stackId) { 660 return stackId == FREEFORM_WORKSPACE_STACK_ID 661 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 662 } 663 664 /** 665 * Returns true if Stack size is affected by the docked stack changing size. 666 */ 667 public static boolean isResizeableByDockedStack(int stackId) { 668 return isStaticStack(stackId) && 669 stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 670 } 671 672 /** 673 * Returns true if the size of tasks in the input stack are affected by the docked stack 674 * changing size. 675 */ 676 public static boolean isTaskResizeableByDockedStack(int stackId) { 677 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 678 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID; 679 } 680 681 /** 682 * Returns true if the windows of tasks being moved to the target stack from the source 683 * stack should be replaced, meaning that window manager will keep the old window around 684 * until the new is ready. 685 */ 686 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 687 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 688 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 689 } 690 691 /** 692 * Return whether a stackId is a stack containing floating windows. Floating windows 693 * are laid out differently as they are allowed to extend past the display bounds 694 * without overscan insets. 695 */ 696 public static boolean tasksAreFloating(int stackId) { 697 return stackId == FREEFORM_WORKSPACE_STACK_ID 698 || stackId == PINNED_STACK_ID; 699 } 700 701 /** 702 * Returns true if animation specs should be constructed for app transition that moves 703 * the task to the specified stack. 704 */ 705 public static boolean useAnimationSpecForAppTransition(int stackId) { 706 707 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 708 // reboots. 709 return stackId == FREEFORM_WORKSPACE_STACK_ID 710 || stackId == FULLSCREEN_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID 711 || stackId == INVALID_STACK_ID; 712 } 713 714 /** Returns true if the windows in the stack can receive input keys. */ 715 public static boolean canReceiveKeys(int stackId) { 716 return stackId != PINNED_STACK_ID; 717 } 718 719 /** 720 * Returns true if the stack can be visible above lockscreen. 721 */ 722 public static boolean isAllowedOverLockscreen(int stackId) { 723 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 724 } 725 726 public static boolean isAlwaysOnTop(int stackId) { 727 return stackId == PINNED_STACK_ID; 728 } 729 730 /** 731 * Returns true if the top task in the task is allowed to return home when finished and 732 * there are other tasks in the stack. 733 */ 734 public static boolean allowTopTaskToReturnHome(int stackId) { 735 return stackId != PINNED_STACK_ID; 736 } 737 738 /** 739 * Returns true if the stack should be resized to match the bounds specified by 740 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 741 */ 742 public static boolean resizeStackWithLaunchBounds(int stackId) { 743 return stackId == PINNED_STACK_ID; 744 } 745 746 /** 747 * Returns true if any visible windows belonging to apps in this stack should be kept on 748 * screen when the app is killed due to something like the low memory killer. 749 */ 750 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 751 return stackId != PINNED_STACK_ID; 752 } 753 754 /** 755 * Returns true if the backdrop on the client side should match the frame of the window. 756 * Returns false, if the backdrop should be fullscreen. 757 */ 758 public static boolean useWindowFrameForBackdrop(int stackId) { 759 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 760 } 761 762 /** 763 * Returns true if a window from the specified stack with {@param stackId} are normally 764 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 765 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 766 * etc. 767 */ 768 public static boolean normallyFullscreenWindows(int stackId) { 769 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 770 && stackId != DOCKED_STACK_ID; 771 } 772 773 /** 774 * Returns true if the input stack id should only be present on a device that supports 775 * multi-window mode. 776 * @see android.app.ActivityManager#supportsMultiWindow 777 */ 778 public static boolean isMultiWindowStack(int stackId) { 779 return isStaticStack(stackId) || stackId == PINNED_STACK_ID 780 || stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == DOCKED_STACK_ID; 781 } 782 783 /** 784 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 785 */ 786 public static boolean isHomeOrRecentsStack(int stackId) { 787 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 788 } 789 790 /** 791 * Returns true if activities contained in this stack can request visible behind by 792 * calling {@link Activity#requestVisibleBehind}. 793 */ 794 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 795 return stackId == FULLSCREEN_WORKSPACE_STACK_ID; 796 } 797 798 /** 799 * Returns true if this stack may be scaled without resizing, 800 * and windows within may need to be configured as such. 801 */ 802 public static boolean windowsAreScaleable(int stackId) { 803 return stackId == PINNED_STACK_ID; 804 } 805 806 /** 807 * Returns true if windows in this stack should be given move animations 808 * by default. 809 */ 810 public static boolean hasMovementAnimations(int stackId) { 811 return stackId != PINNED_STACK_ID; 812 } 813 814 /** Returns true if the input stack and its content can affect the device orientation. */ 815 public static boolean canSpecifyOrientation(int stackId) { 816 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID 817 || stackId == FULLSCREEN_WORKSPACE_STACK_ID; 818 } 819 } 820 821 /** 822 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 823 * specifies the position of the created docked stack at the top half of the screen if 824 * in portrait mode or at the left half of the screen if in landscape mode. 825 * @hide 826 */ 827 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 828 829 /** 830 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 831 * specifies the position of the created docked stack at the bottom half of the screen if 832 * in portrait mode or at the right half of the screen if in landscape mode. 833 * @hide 834 */ 835 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 836 837 /** 838 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 839 * that the resize doesn't need to preserve the window, and can be skipped if bounds 840 * is unchanged. This mode is used by window manager in most cases. 841 * @hide 842 */ 843 public static final int RESIZE_MODE_SYSTEM = 0; 844 845 /** 846 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 847 * that the resize should preserve the window if possible. 848 * @hide 849 */ 850 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 851 852 /** 853 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 854 * that the resize should be performed even if the bounds appears unchanged. 855 * @hide 856 */ 857 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 858 859 /** 860 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 861 * manager during a screen rotation. 862 * @hide 863 */ 864 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 865 866 /** 867 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 868 * resize is due to a drag action. 869 * @hide 870 */ 871 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 872 873 /** 874 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 875 * that the resize should preserve the window if possible, and should not be skipped 876 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 877 * is ending. 878 * @hide 879 */ 880 public static final int RESIZE_MODE_USER_FORCED = 881 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 882 883 /** @hide */ 884 public int getFrontActivityScreenCompatMode() { 885 try { 886 return getService().getFrontActivityScreenCompatMode(); 887 } catch (RemoteException e) { 888 throw e.rethrowFromSystemServer(); 889 } 890 } 891 892 /** @hide */ 893 public void setFrontActivityScreenCompatMode(int mode) { 894 try { 895 getService().setFrontActivityScreenCompatMode(mode); 896 } catch (RemoteException e) { 897 throw e.rethrowFromSystemServer(); 898 } 899 } 900 901 /** @hide */ 902 public int getPackageScreenCompatMode(String packageName) { 903 try { 904 return getService().getPackageScreenCompatMode(packageName); 905 } catch (RemoteException e) { 906 throw e.rethrowFromSystemServer(); 907 } 908 } 909 910 /** @hide */ 911 public void setPackageScreenCompatMode(String packageName, int mode) { 912 try { 913 getService().setPackageScreenCompatMode(packageName, mode); 914 } catch (RemoteException e) { 915 throw e.rethrowFromSystemServer(); 916 } 917 } 918 919 /** @hide */ 920 public boolean getPackageAskScreenCompat(String packageName) { 921 try { 922 return getService().getPackageAskScreenCompat(packageName); 923 } catch (RemoteException e) { 924 throw e.rethrowFromSystemServer(); 925 } 926 } 927 928 /** @hide */ 929 public void setPackageAskScreenCompat(String packageName, boolean ask) { 930 try { 931 getService().setPackageAskScreenCompat(packageName, ask); 932 } catch (RemoteException e) { 933 throw e.rethrowFromSystemServer(); 934 } 935 } 936 937 /** 938 * Return the approximate per-application memory class of the current 939 * device. This gives you an idea of how hard a memory limit you should 940 * impose on your application to let the overall system work best. The 941 * returned value is in megabytes; the baseline Android memory class is 942 * 16 (which happens to be the Java heap limit of those devices); some 943 * device with more memory may return 24 or even higher numbers. 944 */ 945 public int getMemoryClass() { 946 return staticGetMemoryClass(); 947 } 948 949 /** @hide */ 950 static public int staticGetMemoryClass() { 951 // Really brain dead right now -- just take this from the configured 952 // vm heap size, and assume it is in megabytes and thus ends with "m". 953 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 954 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 955 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 956 } 957 return staticGetLargeMemoryClass(); 958 } 959 960 /** 961 * Return the approximate per-application memory class of the current 962 * device when an application is running with a large heap. This is the 963 * space available for memory-intensive applications; most applications 964 * should not need this amount of memory, and should instead stay with the 965 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 966 * This may be the same size as {@link #getMemoryClass()} on memory 967 * constrained devices, or it may be significantly larger on devices with 968 * a large amount of available RAM. 969 * 970 * <p>The is the size of the application's Dalvik heap if it has 971 * specified <code>android:largeHeap="true"</code> in its manifest. 972 */ 973 public int getLargeMemoryClass() { 974 return staticGetLargeMemoryClass(); 975 } 976 977 /** @hide */ 978 static public int staticGetLargeMemoryClass() { 979 // Really brain dead right now -- just take this from the configured 980 // vm heap size, and assume it is in megabytes and thus ends with "m". 981 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 982 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 983 } 984 985 /** 986 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 987 * is ultimately up to the device configuration, but currently it generally means 988 * something in the class of a 512MB device with about a 800x480 or less screen. 989 * This is mostly intended to be used by apps to determine whether they should turn 990 * off certain features that require more RAM. 991 */ 992 public boolean isLowRamDevice() { 993 return isLowRamDeviceStatic(); 994 } 995 996 /** @hide */ 997 public static boolean isLowRamDeviceStatic() { 998 return RoSystemProperties.CONFIG_LOW_RAM; 999 } 1000 1001 /** 1002 * Used by persistent processes to determine if they are running on a 1003 * higher-end device so should be okay using hardware drawing acceleration 1004 * (which tends to consume a lot more RAM). 1005 * @hide 1006 */ 1007 static public boolean isHighEndGfx() { 1008 return !isLowRamDeviceStatic() && 1009 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1010 } 1011 1012 /** 1013 * Return the maximum number of recents entries that we will maintain and show. 1014 * @hide 1015 */ 1016 static public int getMaxRecentTasksStatic() { 1017 if (gMaxRecentTasks < 0) { 1018 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1019 } 1020 return gMaxRecentTasks; 1021 } 1022 1023 /** 1024 * Return the default limit on the number of recents that an app can make. 1025 * @hide 1026 */ 1027 static public int getDefaultAppRecentsLimitStatic() { 1028 return getMaxRecentTasksStatic() / 6; 1029 } 1030 1031 /** 1032 * Return the maximum limit on the number of recents that an app can make. 1033 * @hide 1034 */ 1035 static public int getMaxAppRecentsLimitStatic() { 1036 return getMaxRecentTasksStatic() / 2; 1037 } 1038 1039 /** 1040 * Returns true if the system supports at least one form of multi-window. 1041 * E.g. freeform, split-screen, picture-in-picture. 1042 * @hide 1043 */ 1044 static public boolean supportsMultiWindow() { 1045 return !isLowRamDeviceStatic() 1046 && Resources.getSystem().getBoolean( 1047 com.android.internal.R.bool.config_supportsMultiWindow); 1048 } 1049 1050 /** 1051 * Returns true if the system supports split screen multi-window. 1052 * @hide 1053 */ 1054 static public boolean supportsSplitScreenMultiWindow() { 1055 return supportsMultiWindow() 1056 && Resources.getSystem().getBoolean( 1057 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1058 } 1059 1060 /** 1061 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1062 * the user interacts with the activity currently in picture-in-picture mode. 1063 */ 1064 public static int getMaxNumPictureInPictureActions() { 1065 return NUM_ALLOWED_PIP_ACTIONS; 1066 } 1067 1068 /** 1069 * Information you can set and retrieve about the current activity within the recent task list. 1070 */ 1071 public static class TaskDescription implements Parcelable { 1072 /** @hide */ 1073 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1074 private static final String ATTR_TASKDESCRIPTIONLABEL = 1075 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1076 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1077 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1078 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1079 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1080 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1081 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1082 1083 private String mLabel; 1084 private Bitmap mIcon; 1085 private String mIconFilename; 1086 private int mColorPrimary; 1087 private int mColorBackground; 1088 1089 /** 1090 * Creates the TaskDescription to the specified values. 1091 * 1092 * @param label A label and description of the current state of this task. 1093 * @param icon An icon that represents the current state of this task. 1094 * @param colorPrimary A color to override the theme's primary color. This color must be 1095 * opaque. 1096 */ 1097 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1098 this(label, icon, null, colorPrimary, 0); 1099 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1100 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1101 } 1102 } 1103 1104 /** 1105 * Creates the TaskDescription to the specified values. 1106 * 1107 * @param label A label and description of the current state of this activity. 1108 * @param icon An icon that represents the current state of this activity. 1109 */ 1110 public TaskDescription(String label, Bitmap icon) { 1111 this(label, icon, null, 0, 0); 1112 } 1113 1114 /** 1115 * Creates the TaskDescription to the specified values. 1116 * 1117 * @param label A label and description of the current state of this activity. 1118 */ 1119 public TaskDescription(String label) { 1120 this(label, null, null, 0, 0); 1121 } 1122 1123 /** 1124 * Creates an empty TaskDescription. 1125 */ 1126 public TaskDescription() { 1127 this(null, null, null, 0, 0); 1128 } 1129 1130 /** @hide */ 1131 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1132 int colorBackground) { 1133 mLabel = label; 1134 mIcon = icon; 1135 mIconFilename = iconFilename; 1136 mColorPrimary = colorPrimary; 1137 mColorBackground = colorBackground; 1138 } 1139 1140 /** 1141 * Creates a copy of another TaskDescription. 1142 */ 1143 public TaskDescription(TaskDescription td) { 1144 copyFrom(td); 1145 } 1146 1147 /** 1148 * Copies this the values from another TaskDescription. 1149 * @hide 1150 */ 1151 public void copyFrom(TaskDescription other) { 1152 mLabel = other.mLabel; 1153 mIcon = other.mIcon; 1154 mIconFilename = other.mIconFilename; 1155 mColorPrimary = other.mColorPrimary; 1156 mColorBackground = other.mColorBackground; 1157 } 1158 1159 private TaskDescription(Parcel source) { 1160 readFromParcel(source); 1161 } 1162 1163 /** 1164 * Sets the label for this task description. 1165 * @hide 1166 */ 1167 public void setLabel(String label) { 1168 mLabel = label; 1169 } 1170 1171 /** 1172 * Sets the primary color for this task description. 1173 * @hide 1174 */ 1175 public void setPrimaryColor(int primaryColor) { 1176 // Ensure that the given color is valid 1177 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1178 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1179 } 1180 mColorPrimary = primaryColor; 1181 } 1182 1183 /** 1184 * Sets the background color for this task description. 1185 * @hide 1186 */ 1187 public void setBackgroundColor(int backgroundColor) { 1188 // Ensure that the given color is valid 1189 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1190 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1191 } 1192 mColorBackground = backgroundColor; 1193 } 1194 1195 /** 1196 * Sets the icon for this task description. 1197 * @hide 1198 */ 1199 public void setIcon(Bitmap icon) { 1200 mIcon = icon; 1201 } 1202 1203 /** 1204 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1205 * bitmap. 1206 * @hide 1207 */ 1208 public void setIconFilename(String iconFilename) { 1209 mIconFilename = iconFilename; 1210 mIcon = null; 1211 } 1212 1213 /** 1214 * @return The label and description of the current state of this task. 1215 */ 1216 public String getLabel() { 1217 return mLabel; 1218 } 1219 1220 /** 1221 * @return The icon that represents the current state of this task. 1222 */ 1223 public Bitmap getIcon() { 1224 if (mIcon != null) { 1225 return mIcon; 1226 } 1227 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1228 } 1229 1230 /** @hide */ 1231 public String getIconFilename() { 1232 return mIconFilename; 1233 } 1234 1235 /** @hide */ 1236 public Bitmap getInMemoryIcon() { 1237 return mIcon; 1238 } 1239 1240 /** @hide */ 1241 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1242 if (iconFilename != null) { 1243 try { 1244 return getService().getTaskDescriptionIcon(iconFilename, 1245 userId); 1246 } catch (RemoteException e) { 1247 throw e.rethrowFromSystemServer(); 1248 } 1249 } 1250 return null; 1251 } 1252 1253 /** 1254 * @return The color override on the theme's primary color. 1255 */ 1256 public int getPrimaryColor() { 1257 return mColorPrimary; 1258 } 1259 1260 /** 1261 * @return The background color. 1262 * @hide 1263 */ 1264 public int getBackgroundColor() { 1265 return mColorBackground; 1266 } 1267 1268 /** @hide */ 1269 public void saveToXml(XmlSerializer out) throws IOException { 1270 if (mLabel != null) { 1271 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1272 } 1273 if (mColorPrimary != 0) { 1274 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1275 Integer.toHexString(mColorPrimary)); 1276 } 1277 if (mColorBackground != 0) { 1278 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1279 Integer.toHexString(mColorBackground)); 1280 } 1281 if (mIconFilename != null) { 1282 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1283 } 1284 } 1285 1286 /** @hide */ 1287 public void restoreFromXml(String attrName, String attrValue) { 1288 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1289 setLabel(attrValue); 1290 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1291 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1292 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1293 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1294 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1295 setIconFilename(attrValue); 1296 } 1297 } 1298 1299 @Override 1300 public int describeContents() { 1301 return 0; 1302 } 1303 1304 @Override 1305 public void writeToParcel(Parcel dest, int flags) { 1306 if (mLabel == null) { 1307 dest.writeInt(0); 1308 } else { 1309 dest.writeInt(1); 1310 dest.writeString(mLabel); 1311 } 1312 if (mIcon == null) { 1313 dest.writeInt(0); 1314 } else { 1315 dest.writeInt(1); 1316 mIcon.writeToParcel(dest, 0); 1317 } 1318 dest.writeInt(mColorPrimary); 1319 dest.writeInt(mColorBackground); 1320 if (mIconFilename == null) { 1321 dest.writeInt(0); 1322 } else { 1323 dest.writeInt(1); 1324 dest.writeString(mIconFilename); 1325 } 1326 } 1327 1328 public void readFromParcel(Parcel source) { 1329 mLabel = source.readInt() > 0 ? source.readString() : null; 1330 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1331 mColorPrimary = source.readInt(); 1332 mColorBackground = source.readInt(); 1333 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1334 } 1335 1336 public static final Creator<TaskDescription> CREATOR 1337 = new Creator<TaskDescription>() { 1338 public TaskDescription createFromParcel(Parcel source) { 1339 return new TaskDescription(source); 1340 } 1341 public TaskDescription[] newArray(int size) { 1342 return new TaskDescription[size]; 1343 } 1344 }; 1345 1346 @Override 1347 public String toString() { 1348 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1349 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1350 " colorBackground: " + mColorBackground; 1351 } 1352 } 1353 1354 /** 1355 * Information you can retrieve about tasks that the user has most recently 1356 * started or visited. 1357 */ 1358 public static class RecentTaskInfo implements Parcelable { 1359 /** 1360 * If this task is currently running, this is the identifier for it. 1361 * If it is not running, this will be -1. 1362 */ 1363 public int id; 1364 1365 /** 1366 * The true identifier of this task, valid even if it is not running. 1367 */ 1368 public int persistentId; 1369 1370 /** 1371 * The original Intent used to launch the task. You can use this 1372 * Intent to re-launch the task (if it is no longer running) or bring 1373 * the current task to the front. 1374 */ 1375 public Intent baseIntent; 1376 1377 /** 1378 * If this task was started from an alias, this is the actual 1379 * activity component that was initially started; the component of 1380 * the baseIntent in this case is the name of the actual activity 1381 * implementation that the alias referred to. Otherwise, this is null. 1382 */ 1383 public ComponentName origActivity; 1384 1385 /** 1386 * The actual activity component that started the task. 1387 * @hide 1388 */ 1389 @Nullable 1390 public ComponentName realActivity; 1391 1392 /** 1393 * Description of the task's last state. 1394 */ 1395 public CharSequence description; 1396 1397 /** 1398 * The id of the ActivityStack this Task was on most recently. 1399 * @hide 1400 */ 1401 public int stackId; 1402 1403 /** 1404 * The id of the user the task was running as. 1405 * @hide 1406 */ 1407 public int userId; 1408 1409 /** 1410 * The first time this task was active. 1411 * @hide 1412 */ 1413 public long firstActiveTime; 1414 1415 /** 1416 * The last time this task was active. 1417 * @hide 1418 */ 1419 public long lastActiveTime; 1420 1421 /** 1422 * The recent activity values for the highest activity in the stack to have set the values. 1423 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1424 */ 1425 public TaskDescription taskDescription; 1426 1427 /** 1428 * Task affiliation for grouping with other tasks. 1429 */ 1430 public int affiliatedTaskId; 1431 1432 /** 1433 * Task affiliation color of the source task with the affiliated task id. 1434 * 1435 * @hide 1436 */ 1437 public int affiliatedTaskColor; 1438 1439 /** 1440 * The component launched as the first activity in the task. 1441 * This can be considered the "application" of this task. 1442 */ 1443 public ComponentName baseActivity; 1444 1445 /** 1446 * The activity component at the top of the history stack of the task. 1447 * This is what the user is currently doing. 1448 */ 1449 public ComponentName topActivity; 1450 1451 /** 1452 * Number of activities in this task. 1453 */ 1454 public int numActivities; 1455 1456 /** 1457 * The bounds of the task. 1458 * @hide 1459 */ 1460 public Rect bounds; 1461 1462 /** 1463 * True if the task can go in the docked stack. 1464 * @hide 1465 */ 1466 public boolean isDockable; 1467 1468 /** 1469 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1470 * @hide 1471 */ 1472 public int resizeMode; 1473 1474 public RecentTaskInfo() { 1475 } 1476 1477 @Override 1478 public int describeContents() { 1479 return 0; 1480 } 1481 1482 @Override 1483 public void writeToParcel(Parcel dest, int flags) { 1484 dest.writeInt(id); 1485 dest.writeInt(persistentId); 1486 if (baseIntent != null) { 1487 dest.writeInt(1); 1488 baseIntent.writeToParcel(dest, 0); 1489 } else { 1490 dest.writeInt(0); 1491 } 1492 ComponentName.writeToParcel(origActivity, dest); 1493 ComponentName.writeToParcel(realActivity, dest); 1494 TextUtils.writeToParcel(description, dest, 1495 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1496 if (taskDescription != null) { 1497 dest.writeInt(1); 1498 taskDescription.writeToParcel(dest, 0); 1499 } else { 1500 dest.writeInt(0); 1501 } 1502 dest.writeInt(stackId); 1503 dest.writeInt(userId); 1504 dest.writeLong(firstActiveTime); 1505 dest.writeLong(lastActiveTime); 1506 dest.writeInt(affiliatedTaskId); 1507 dest.writeInt(affiliatedTaskColor); 1508 ComponentName.writeToParcel(baseActivity, dest); 1509 ComponentName.writeToParcel(topActivity, dest); 1510 dest.writeInt(numActivities); 1511 if (bounds != null) { 1512 dest.writeInt(1); 1513 bounds.writeToParcel(dest, 0); 1514 } else { 1515 dest.writeInt(0); 1516 } 1517 dest.writeInt(isDockable ? 1 : 0); 1518 dest.writeInt(resizeMode); 1519 } 1520 1521 public void readFromParcel(Parcel source) { 1522 id = source.readInt(); 1523 persistentId = source.readInt(); 1524 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1525 origActivity = ComponentName.readFromParcel(source); 1526 realActivity = ComponentName.readFromParcel(source); 1527 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1528 taskDescription = source.readInt() > 0 ? 1529 TaskDescription.CREATOR.createFromParcel(source) : null; 1530 stackId = source.readInt(); 1531 userId = source.readInt(); 1532 firstActiveTime = source.readLong(); 1533 lastActiveTime = source.readLong(); 1534 affiliatedTaskId = source.readInt(); 1535 affiliatedTaskColor = source.readInt(); 1536 baseActivity = ComponentName.readFromParcel(source); 1537 topActivity = ComponentName.readFromParcel(source); 1538 numActivities = source.readInt(); 1539 bounds = source.readInt() > 0 ? 1540 Rect.CREATOR.createFromParcel(source) : null; 1541 isDockable = source.readInt() == 1; 1542 resizeMode = source.readInt(); 1543 } 1544 1545 public static final Creator<RecentTaskInfo> CREATOR 1546 = new Creator<RecentTaskInfo>() { 1547 public RecentTaskInfo createFromParcel(Parcel source) { 1548 return new RecentTaskInfo(source); 1549 } 1550 public RecentTaskInfo[] newArray(int size) { 1551 return new RecentTaskInfo[size]; 1552 } 1553 }; 1554 1555 private RecentTaskInfo(Parcel source) { 1556 readFromParcel(source); 1557 } 1558 } 1559 1560 /** 1561 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1562 * that have set their 1563 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1564 */ 1565 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1566 1567 /** 1568 * Provides a list that does not contain any 1569 * recent tasks that currently are not available to the user. 1570 */ 1571 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1572 1573 /** 1574 * Provides a list that contains recent tasks for all 1575 * profiles of a user. 1576 * @hide 1577 */ 1578 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1579 1580 /** 1581 * Ignores all tasks that are on the home stack. 1582 * @hide 1583 */ 1584 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1585 1586 /** 1587 * Ignores the top task in the docked stack. 1588 * @hide 1589 */ 1590 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1591 1592 /** 1593 * Ignores all tasks that are on the pinned stack. 1594 * @hide 1595 */ 1596 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1597 1598 /** 1599 * <p></p>Return a list of the tasks that the user has recently launched, with 1600 * the most recent being first and older ones after in order. 1601 * 1602 * <p><b>Note: this method is only intended for debugging and presenting 1603 * task management user interfaces</b>. This should never be used for 1604 * core logic in an application, such as deciding between different 1605 * behaviors based on the information found here. Such uses are 1606 * <em>not</em> supported, and will likely break in the future. For 1607 * example, if multiple applications can be actively running at the 1608 * same time, assumptions made about the meaning of the data here for 1609 * purposes of control flow will be incorrect.</p> 1610 * 1611 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1612 * no longer available to third party applications: the introduction of 1613 * document-centric recents means 1614 * it can leak personal information to the caller. For backwards compatibility, 1615 * it will still return a small subset of its data: at least the caller's 1616 * own tasks (though see {@link #getAppTasks()} for the correct supported 1617 * way to retrieve that information), and possibly some other tasks 1618 * such as home that are known to not be sensitive. 1619 * 1620 * @param maxNum The maximum number of entries to return in the list. The 1621 * actual number returned may be smaller, depending on how many tasks the 1622 * user has started and the maximum number the system can remember. 1623 * @param flags Information about what to return. May be any combination 1624 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1625 * 1626 * @return Returns a list of RecentTaskInfo records describing each of 1627 * the recent tasks. 1628 */ 1629 @Deprecated 1630 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1631 throws SecurityException { 1632 try { 1633 return getService().getRecentTasks(maxNum, 1634 flags, UserHandle.myUserId()).getList(); 1635 } catch (RemoteException e) { 1636 throw e.rethrowFromSystemServer(); 1637 } 1638 } 1639 1640 /** 1641 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1642 * specific user. It requires holding 1643 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1644 * @param maxNum The maximum number of entries to return in the list. The 1645 * actual number returned may be smaller, depending on how many tasks the 1646 * user has started and the maximum number the system can remember. 1647 * @param flags Information about what to return. May be any combination 1648 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1649 * 1650 * @return Returns a list of RecentTaskInfo records describing each of 1651 * the recent tasks. Most recently activated tasks go first. 1652 * 1653 * @hide 1654 */ 1655 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1656 throws SecurityException { 1657 try { 1658 return getService().getRecentTasks(maxNum, 1659 flags, userId).getList(); 1660 } catch (RemoteException e) { 1661 throw e.rethrowFromSystemServer(); 1662 } 1663 } 1664 1665 /** 1666 * Information you can retrieve about a particular task that is currently 1667 * "running" in the system. Note that a running task does not mean the 1668 * given task actually has a process it is actively running in; it simply 1669 * means that the user has gone to it and never closed it, but currently 1670 * the system may have killed its process and is only holding on to its 1671 * last state in order to restart it when the user returns. 1672 */ 1673 public static class RunningTaskInfo implements Parcelable { 1674 /** 1675 * A unique identifier for this task. 1676 */ 1677 public int id; 1678 1679 /** 1680 * The stack that currently contains this task. 1681 * @hide 1682 */ 1683 public int stackId; 1684 1685 /** 1686 * The component launched as the first activity in the task. This can 1687 * be considered the "application" of this task. 1688 */ 1689 public ComponentName baseActivity; 1690 1691 /** 1692 * The activity component at the top of the history stack of the task. 1693 * This is what the user is currently doing. 1694 */ 1695 public ComponentName topActivity; 1696 1697 /** 1698 * Thumbnail representation of the task's current state. Currently 1699 * always null. 1700 */ 1701 public Bitmap thumbnail; 1702 1703 /** 1704 * Description of the task's current state. 1705 */ 1706 public CharSequence description; 1707 1708 /** 1709 * Number of activities in this task. 1710 */ 1711 public int numActivities; 1712 1713 /** 1714 * Number of activities that are currently running (not stopped 1715 * and persisted) in this task. 1716 */ 1717 public int numRunning; 1718 1719 /** 1720 * Last time task was run. For sorting. 1721 * @hide 1722 */ 1723 public long lastActiveTime; 1724 1725 /** 1726 * True if the task can go in the docked stack. 1727 * @hide 1728 */ 1729 public boolean isDockable; 1730 1731 /** 1732 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1733 * @hide 1734 */ 1735 public int resizeMode; 1736 1737 public RunningTaskInfo() { 1738 } 1739 1740 public int describeContents() { 1741 return 0; 1742 } 1743 1744 public void writeToParcel(Parcel dest, int flags) { 1745 dest.writeInt(id); 1746 dest.writeInt(stackId); 1747 ComponentName.writeToParcel(baseActivity, dest); 1748 ComponentName.writeToParcel(topActivity, dest); 1749 if (thumbnail != null) { 1750 dest.writeInt(1); 1751 thumbnail.writeToParcel(dest, 0); 1752 } else { 1753 dest.writeInt(0); 1754 } 1755 TextUtils.writeToParcel(description, dest, 1756 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1757 dest.writeInt(numActivities); 1758 dest.writeInt(numRunning); 1759 dest.writeInt(isDockable ? 1 : 0); 1760 dest.writeInt(resizeMode); 1761 } 1762 1763 public void readFromParcel(Parcel source) { 1764 id = source.readInt(); 1765 stackId = source.readInt(); 1766 baseActivity = ComponentName.readFromParcel(source); 1767 topActivity = ComponentName.readFromParcel(source); 1768 if (source.readInt() != 0) { 1769 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1770 } else { 1771 thumbnail = null; 1772 } 1773 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1774 numActivities = source.readInt(); 1775 numRunning = source.readInt(); 1776 isDockable = source.readInt() != 0; 1777 resizeMode = source.readInt(); 1778 } 1779 1780 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1781 public RunningTaskInfo createFromParcel(Parcel source) { 1782 return new RunningTaskInfo(source); 1783 } 1784 public RunningTaskInfo[] newArray(int size) { 1785 return new RunningTaskInfo[size]; 1786 } 1787 }; 1788 1789 private RunningTaskInfo(Parcel source) { 1790 readFromParcel(source); 1791 } 1792 } 1793 1794 /** 1795 * Get the list of tasks associated with the calling application. 1796 * 1797 * @return The list of tasks associated with the application making this call. 1798 * @throws SecurityException 1799 */ 1800 public List<ActivityManager.AppTask> getAppTasks() { 1801 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1802 List<IBinder> appTasks; 1803 try { 1804 appTasks = getService().getAppTasks(mContext.getPackageName()); 1805 } catch (RemoteException e) { 1806 throw e.rethrowFromSystemServer(); 1807 } 1808 int numAppTasks = appTasks.size(); 1809 for (int i = 0; i < numAppTasks; i++) { 1810 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1811 } 1812 return tasks; 1813 } 1814 1815 /** 1816 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1817 * with {@link #addAppTask}. 1818 */ 1819 public Size getAppTaskThumbnailSize() { 1820 synchronized (this) { 1821 ensureAppTaskThumbnailSizeLocked(); 1822 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1823 } 1824 } 1825 1826 private void ensureAppTaskThumbnailSizeLocked() { 1827 if (mAppTaskThumbnailSize == null) { 1828 try { 1829 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1830 } catch (RemoteException e) { 1831 throw e.rethrowFromSystemServer(); 1832 } 1833 } 1834 } 1835 1836 /** 1837 * Add a new {@link AppTask} for the calling application. This will create a new 1838 * recents entry that is added to the <b>end</b> of all existing recents. 1839 * 1840 * @param activity The activity that is adding the entry. This is used to help determine 1841 * the context that the new recents entry will be in. 1842 * @param intent The Intent that describes the recents entry. This is the same Intent that 1843 * you would have used to launch the activity for it. In generally you will want to set 1844 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1845 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1846 * entry will exist without an activity, so it doesn't make sense to not retain it when 1847 * its activity disappears. The given Intent here also must have an explicit ComponentName 1848 * set on it. 1849 * @param description Optional additional description information. 1850 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1851 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1852 * recreated in your process, probably in a way you don't like, before the recents entry 1853 * is added. 1854 * 1855 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1856 * most likely cause of failure is that there is no more room for more tasks for your app. 1857 */ 1858 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1859 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1860 Point size; 1861 synchronized (this) { 1862 ensureAppTaskThumbnailSizeLocked(); 1863 size = mAppTaskThumbnailSize; 1864 } 1865 final int tw = thumbnail.getWidth(); 1866 final int th = thumbnail.getHeight(); 1867 if (tw != size.x || th != size.y) { 1868 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1869 1870 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1871 float scale; 1872 float dx = 0, dy = 0; 1873 if (tw * size.x > size.y * th) { 1874 scale = (float) size.x / (float) th; 1875 dx = (size.y - tw * scale) * 0.5f; 1876 } else { 1877 scale = (float) size.y / (float) tw; 1878 dy = (size.x - th * scale) * 0.5f; 1879 } 1880 Matrix matrix = new Matrix(); 1881 matrix.setScale(scale, scale); 1882 matrix.postTranslate((int) (dx + 0.5f), 0); 1883 1884 Canvas canvas = new Canvas(bm); 1885 canvas.drawBitmap(thumbnail, matrix, null); 1886 canvas.setBitmap(null); 1887 1888 thumbnail = bm; 1889 } 1890 if (description == null) { 1891 description = new TaskDescription(); 1892 } 1893 try { 1894 return getService().addAppTask(activity.getActivityToken(), 1895 intent, description, thumbnail); 1896 } catch (RemoteException e) { 1897 throw e.rethrowFromSystemServer(); 1898 } 1899 } 1900 1901 /** 1902 * Return a list of the tasks that are currently running, with 1903 * the most recent being first and older ones after in order. Note that 1904 * "running" does not mean any of the task's code is currently loaded or 1905 * activity -- the task may have been frozen by the system, so that it 1906 * can be restarted in its previous state when next brought to the 1907 * foreground. 1908 * 1909 * <p><b>Note: this method is only intended for debugging and presenting 1910 * task management user interfaces</b>. This should never be used for 1911 * core logic in an application, such as deciding between different 1912 * behaviors based on the information found here. Such uses are 1913 * <em>not</em> supported, and will likely break in the future. For 1914 * example, if multiple applications can be actively running at the 1915 * same time, assumptions made about the meaning of the data here for 1916 * purposes of control flow will be incorrect.</p> 1917 * 1918 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1919 * is no longer available to third party 1920 * applications: the introduction of document-centric recents means 1921 * it can leak person information to the caller. For backwards compatibility, 1922 * it will still retu rn a small subset of its data: at least the caller's 1923 * own tasks, and possibly some other tasks 1924 * such as home that are known to not be sensitive. 1925 * 1926 * @param maxNum The maximum number of entries to return in the list. The 1927 * actual number returned may be smaller, depending on how many tasks the 1928 * user has started. 1929 * 1930 * @return Returns a list of RunningTaskInfo records describing each of 1931 * the running tasks. 1932 */ 1933 @Deprecated 1934 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1935 throws SecurityException { 1936 try { 1937 return getService().getTasks(maxNum, 0); 1938 } catch (RemoteException e) { 1939 throw e.rethrowFromSystemServer(); 1940 } 1941 } 1942 1943 /** 1944 * Completely remove the given task. 1945 * 1946 * @param taskId Identifier of the task to be removed. 1947 * @return Returns true if the given task was found and removed. 1948 * 1949 * @hide 1950 */ 1951 public boolean removeTask(int taskId) throws SecurityException { 1952 try { 1953 return getService().removeTask(taskId); 1954 } catch (RemoteException e) { 1955 throw e.rethrowFromSystemServer(); 1956 } 1957 } 1958 1959 /** 1960 * Metadata related to the {@link TaskThumbnail}. 1961 * 1962 * @hide 1963 */ 1964 public static class TaskThumbnailInfo implements Parcelable { 1965 /** @hide */ 1966 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 1967 private static final String ATTR_TASK_WIDTH = 1968 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 1969 private static final String ATTR_TASK_HEIGHT = 1970 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 1971 private static final String ATTR_SCREEN_ORIENTATION = 1972 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 1973 1974 public int taskWidth; 1975 public int taskHeight; 1976 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1977 1978 public TaskThumbnailInfo() { 1979 // Do nothing 1980 } 1981 1982 private TaskThumbnailInfo(Parcel source) { 1983 readFromParcel(source); 1984 } 1985 1986 /** 1987 * Resets this info state to the initial state. 1988 * @hide 1989 */ 1990 public void reset() { 1991 taskWidth = 0; 1992 taskHeight = 0; 1993 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 1994 } 1995 1996 /** 1997 * Copies from another ThumbnailInfo. 1998 */ 1999 public void copyFrom(TaskThumbnailInfo o) { 2000 taskWidth = o.taskWidth; 2001 taskHeight = o.taskHeight; 2002 screenOrientation = o.screenOrientation; 2003 } 2004 2005 /** @hide */ 2006 public void saveToXml(XmlSerializer out) throws IOException { 2007 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2008 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2009 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2010 } 2011 2012 /** @hide */ 2013 public void restoreFromXml(String attrName, String attrValue) { 2014 if (ATTR_TASK_WIDTH.equals(attrName)) { 2015 taskWidth = Integer.parseInt(attrValue); 2016 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2017 taskHeight = Integer.parseInt(attrValue); 2018 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2019 screenOrientation = Integer.parseInt(attrValue); 2020 } 2021 } 2022 2023 public int describeContents() { 2024 return 0; 2025 } 2026 2027 public void writeToParcel(Parcel dest, int flags) { 2028 dest.writeInt(taskWidth); 2029 dest.writeInt(taskHeight); 2030 dest.writeInt(screenOrientation); 2031 } 2032 2033 public void readFromParcel(Parcel source) { 2034 taskWidth = source.readInt(); 2035 taskHeight = source.readInt(); 2036 screenOrientation = source.readInt(); 2037 } 2038 2039 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2040 public TaskThumbnailInfo createFromParcel(Parcel source) { 2041 return new TaskThumbnailInfo(source); 2042 } 2043 public TaskThumbnailInfo[] newArray(int size) { 2044 return new TaskThumbnailInfo[size]; 2045 } 2046 }; 2047 } 2048 2049 /** @hide */ 2050 public static class TaskThumbnail implements Parcelable { 2051 public Bitmap mainThumbnail; 2052 public ParcelFileDescriptor thumbnailFileDescriptor; 2053 public TaskThumbnailInfo thumbnailInfo; 2054 2055 public TaskThumbnail() { 2056 } 2057 2058 private TaskThumbnail(Parcel source) { 2059 readFromParcel(source); 2060 } 2061 2062 public int describeContents() { 2063 if (thumbnailFileDescriptor != null) { 2064 return thumbnailFileDescriptor.describeContents(); 2065 } 2066 return 0; 2067 } 2068 2069 public void writeToParcel(Parcel dest, int flags) { 2070 if (mainThumbnail != null) { 2071 dest.writeInt(1); 2072 mainThumbnail.writeToParcel(dest, flags); 2073 } else { 2074 dest.writeInt(0); 2075 } 2076 if (thumbnailFileDescriptor != null) { 2077 dest.writeInt(1); 2078 thumbnailFileDescriptor.writeToParcel(dest, flags); 2079 } else { 2080 dest.writeInt(0); 2081 } 2082 if (thumbnailInfo != null) { 2083 dest.writeInt(1); 2084 thumbnailInfo.writeToParcel(dest, flags); 2085 } else { 2086 dest.writeInt(0); 2087 } 2088 } 2089 2090 public void readFromParcel(Parcel source) { 2091 if (source.readInt() != 0) { 2092 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2093 } else { 2094 mainThumbnail = null; 2095 } 2096 if (source.readInt() != 0) { 2097 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2098 } else { 2099 thumbnailFileDescriptor = null; 2100 } 2101 if (source.readInt() != 0) { 2102 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2103 } else { 2104 thumbnailInfo = null; 2105 } 2106 } 2107 2108 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2109 public TaskThumbnail createFromParcel(Parcel source) { 2110 return new TaskThumbnail(source); 2111 } 2112 public TaskThumbnail[] newArray(int size) { 2113 return new TaskThumbnail[size]; 2114 } 2115 }; 2116 } 2117 2118 /** @hide */ 2119 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2120 try { 2121 return getService().getTaskThumbnail(id); 2122 } catch (RemoteException e) { 2123 throw e.rethrowFromSystemServer(); 2124 } 2125 } 2126 2127 /** 2128 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2129 * activity along with the task, so it is positioned immediately behind 2130 * the task. 2131 */ 2132 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2133 2134 /** 2135 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2136 * user-instigated action, so the current activity will not receive a 2137 * hint that the user is leaving. 2138 */ 2139 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2140 2141 /** 2142 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2143 * with a null options argument. 2144 * 2145 * @param taskId The identifier of the task to be moved, as found in 2146 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2147 * @param flags Additional operational flags, 0 or more of 2148 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2149 */ 2150 public void moveTaskToFront(int taskId, int flags) { 2151 moveTaskToFront(taskId, flags, null); 2152 } 2153 2154 /** 2155 * Ask that the task associated with a given task ID be moved to the 2156 * front of the stack, so it is now visible to the user. Requires that 2157 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2158 * or a SecurityException will be thrown. 2159 * 2160 * @param taskId The identifier of the task to be moved, as found in 2161 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2162 * @param flags Additional operational flags, 0 or more of 2163 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2164 * @param options Additional options for the operation, either null or 2165 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2166 * Context.startActivity(Intent, Bundle)}. 2167 */ 2168 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2169 try { 2170 getService().moveTaskToFront(taskId, flags, options); 2171 } catch (RemoteException e) { 2172 throw e.rethrowFromSystemServer(); 2173 } 2174 } 2175 2176 /** 2177 * Information you can retrieve about a particular Service that is 2178 * currently running in the system. 2179 */ 2180 public static class RunningServiceInfo implements Parcelable { 2181 /** 2182 * The service component. 2183 */ 2184 public ComponentName service; 2185 2186 /** 2187 * If non-zero, this is the process the service is running in. 2188 */ 2189 public int pid; 2190 2191 /** 2192 * The UID that owns this service. 2193 */ 2194 public int uid; 2195 2196 /** 2197 * The name of the process this service runs in. 2198 */ 2199 public String process; 2200 2201 /** 2202 * Set to true if the service has asked to run as a foreground process. 2203 */ 2204 public boolean foreground; 2205 2206 /** 2207 * The time when the service was first made active, either by someone 2208 * starting or binding to it. This 2209 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2210 */ 2211 public long activeSince; 2212 2213 /** 2214 * Set to true if this service has been explicitly started. 2215 */ 2216 public boolean started; 2217 2218 /** 2219 * Number of clients connected to the service. 2220 */ 2221 public int clientCount; 2222 2223 /** 2224 * Number of times the service's process has crashed while the service 2225 * is running. 2226 */ 2227 public int crashCount; 2228 2229 /** 2230 * The time when there was last activity in the service (either 2231 * explicit requests to start it or clients binding to it). This 2232 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2233 */ 2234 public long lastActivityTime; 2235 2236 /** 2237 * If non-zero, this service is not currently running, but scheduled to 2238 * restart at the given time. 2239 */ 2240 public long restarting; 2241 2242 /** 2243 * Bit for {@link #flags}: set if this service has been 2244 * explicitly started. 2245 */ 2246 public static final int FLAG_STARTED = 1<<0; 2247 2248 /** 2249 * Bit for {@link #flags}: set if the service has asked to 2250 * run as a foreground process. 2251 */ 2252 public static final int FLAG_FOREGROUND = 1<<1; 2253 2254 /** 2255 * Bit for {@link #flags): set if the service is running in a 2256 * core system process. 2257 */ 2258 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2259 2260 /** 2261 * Bit for {@link #flags): set if the service is running in a 2262 * persistent process. 2263 */ 2264 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2265 2266 /** 2267 * Running flags. 2268 */ 2269 public int flags; 2270 2271 /** 2272 * For special services that are bound to by system code, this is 2273 * the package that holds the binding. 2274 */ 2275 public String clientPackage; 2276 2277 /** 2278 * For special services that are bound to by system code, this is 2279 * a string resource providing a user-visible label for who the 2280 * client is. 2281 */ 2282 public int clientLabel; 2283 2284 public RunningServiceInfo() { 2285 } 2286 2287 public int describeContents() { 2288 return 0; 2289 } 2290 2291 public void writeToParcel(Parcel dest, int flags) { 2292 ComponentName.writeToParcel(service, dest); 2293 dest.writeInt(pid); 2294 dest.writeInt(uid); 2295 dest.writeString(process); 2296 dest.writeInt(foreground ? 1 : 0); 2297 dest.writeLong(activeSince); 2298 dest.writeInt(started ? 1 : 0); 2299 dest.writeInt(clientCount); 2300 dest.writeInt(crashCount); 2301 dest.writeLong(lastActivityTime); 2302 dest.writeLong(restarting); 2303 dest.writeInt(this.flags); 2304 dest.writeString(clientPackage); 2305 dest.writeInt(clientLabel); 2306 } 2307 2308 public void readFromParcel(Parcel source) { 2309 service = ComponentName.readFromParcel(source); 2310 pid = source.readInt(); 2311 uid = source.readInt(); 2312 process = source.readString(); 2313 foreground = source.readInt() != 0; 2314 activeSince = source.readLong(); 2315 started = source.readInt() != 0; 2316 clientCount = source.readInt(); 2317 crashCount = source.readInt(); 2318 lastActivityTime = source.readLong(); 2319 restarting = source.readLong(); 2320 flags = source.readInt(); 2321 clientPackage = source.readString(); 2322 clientLabel = source.readInt(); 2323 } 2324 2325 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2326 public RunningServiceInfo createFromParcel(Parcel source) { 2327 return new RunningServiceInfo(source); 2328 } 2329 public RunningServiceInfo[] newArray(int size) { 2330 return new RunningServiceInfo[size]; 2331 } 2332 }; 2333 2334 private RunningServiceInfo(Parcel source) { 2335 readFromParcel(source); 2336 } 2337 } 2338 2339 /** 2340 * Return a list of the services that are currently running. 2341 * 2342 * <p><b>Note: this method is only intended for debugging or implementing 2343 * service management type user interfaces.</b></p> 2344 * 2345 * @param maxNum The maximum number of entries to return in the list. The 2346 * actual number returned may be smaller, depending on how many services 2347 * are running. 2348 * 2349 * @return Returns a list of RunningServiceInfo records describing each of 2350 * the running tasks. 2351 */ 2352 public List<RunningServiceInfo> getRunningServices(int maxNum) 2353 throws SecurityException { 2354 try { 2355 return getService() 2356 .getServices(maxNum, 0); 2357 } catch (RemoteException e) { 2358 throw e.rethrowFromSystemServer(); 2359 } 2360 } 2361 2362 /** 2363 * Returns a PendingIntent you can start to show a control panel for the 2364 * given running service. If the service does not have a control panel, 2365 * null is returned. 2366 */ 2367 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2368 throws SecurityException { 2369 try { 2370 return getService() 2371 .getRunningServiceControlPanel(service); 2372 } catch (RemoteException e) { 2373 throw e.rethrowFromSystemServer(); 2374 } 2375 } 2376 2377 /** 2378 * Information you can retrieve about the available memory through 2379 * {@link ActivityManager#getMemoryInfo}. 2380 */ 2381 public static class MemoryInfo implements Parcelable { 2382 /** 2383 * The available memory on the system. This number should not 2384 * be considered absolute: due to the nature of the kernel, a significant 2385 * portion of this memory is actually in use and needed for the overall 2386 * system to run well. 2387 */ 2388 public long availMem; 2389 2390 /** 2391 * The total memory accessible by the kernel. This is basically the 2392 * RAM size of the device, not including below-kernel fixed allocations 2393 * like DMA buffers, RAM for the baseband CPU, etc. 2394 */ 2395 public long totalMem; 2396 2397 /** 2398 * The threshold of {@link #availMem} at which we consider memory to be 2399 * low and start killing background services and other non-extraneous 2400 * processes. 2401 */ 2402 public long threshold; 2403 2404 /** 2405 * Set to true if the system considers itself to currently be in a low 2406 * memory situation. 2407 */ 2408 public boolean lowMemory; 2409 2410 /** @hide */ 2411 public long hiddenAppThreshold; 2412 /** @hide */ 2413 public long secondaryServerThreshold; 2414 /** @hide */ 2415 public long visibleAppThreshold; 2416 /** @hide */ 2417 public long foregroundAppThreshold; 2418 2419 public MemoryInfo() { 2420 } 2421 2422 public int describeContents() { 2423 return 0; 2424 } 2425 2426 public void writeToParcel(Parcel dest, int flags) { 2427 dest.writeLong(availMem); 2428 dest.writeLong(totalMem); 2429 dest.writeLong(threshold); 2430 dest.writeInt(lowMemory ? 1 : 0); 2431 dest.writeLong(hiddenAppThreshold); 2432 dest.writeLong(secondaryServerThreshold); 2433 dest.writeLong(visibleAppThreshold); 2434 dest.writeLong(foregroundAppThreshold); 2435 } 2436 2437 public void readFromParcel(Parcel source) { 2438 availMem = source.readLong(); 2439 totalMem = source.readLong(); 2440 threshold = source.readLong(); 2441 lowMemory = source.readInt() != 0; 2442 hiddenAppThreshold = source.readLong(); 2443 secondaryServerThreshold = source.readLong(); 2444 visibleAppThreshold = source.readLong(); 2445 foregroundAppThreshold = source.readLong(); 2446 } 2447 2448 public static final Creator<MemoryInfo> CREATOR 2449 = new Creator<MemoryInfo>() { 2450 public MemoryInfo createFromParcel(Parcel source) { 2451 return new MemoryInfo(source); 2452 } 2453 public MemoryInfo[] newArray(int size) { 2454 return new MemoryInfo[size]; 2455 } 2456 }; 2457 2458 private MemoryInfo(Parcel source) { 2459 readFromParcel(source); 2460 } 2461 } 2462 2463 /** 2464 * Return general information about the memory state of the system. This 2465 * can be used to help decide how to manage your own memory, though note 2466 * that polling is not recommended and 2467 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2468 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2469 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2470 * level of your process as needed, which gives a better hint for how to 2471 * manage its memory. 2472 */ 2473 public void getMemoryInfo(MemoryInfo outInfo) { 2474 try { 2475 getService().getMemoryInfo(outInfo); 2476 } catch (RemoteException e) { 2477 throw e.rethrowFromSystemServer(); 2478 } 2479 } 2480 2481 /** 2482 * Information you can retrieve about an ActivityStack in the system. 2483 * @hide 2484 */ 2485 public static class StackInfo implements Parcelable { 2486 public int stackId; 2487 public Rect bounds = new Rect(); 2488 public int[] taskIds; 2489 public String[] taskNames; 2490 public Rect[] taskBounds; 2491 public int[] taskUserIds; 2492 public ComponentName topActivity; 2493 public int displayId; 2494 public int userId; 2495 public boolean visible; 2496 // Index of the stack in the display's stack list, can be used for comparison of stack order 2497 public int position; 2498 2499 @Override 2500 public int describeContents() { 2501 return 0; 2502 } 2503 2504 @Override 2505 public void writeToParcel(Parcel dest, int flags) { 2506 dest.writeInt(stackId); 2507 dest.writeInt(bounds.left); 2508 dest.writeInt(bounds.top); 2509 dest.writeInt(bounds.right); 2510 dest.writeInt(bounds.bottom); 2511 dest.writeIntArray(taskIds); 2512 dest.writeStringArray(taskNames); 2513 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2514 dest.writeInt(boundsCount); 2515 for (int i = 0; i < boundsCount; i++) { 2516 dest.writeInt(taskBounds[i].left); 2517 dest.writeInt(taskBounds[i].top); 2518 dest.writeInt(taskBounds[i].right); 2519 dest.writeInt(taskBounds[i].bottom); 2520 } 2521 dest.writeIntArray(taskUserIds); 2522 dest.writeInt(displayId); 2523 dest.writeInt(userId); 2524 dest.writeInt(visible ? 1 : 0); 2525 dest.writeInt(position); 2526 if (topActivity != null) { 2527 dest.writeInt(1); 2528 topActivity.writeToParcel(dest, 0); 2529 } else { 2530 dest.writeInt(0); 2531 } 2532 } 2533 2534 public void readFromParcel(Parcel source) { 2535 stackId = source.readInt(); 2536 bounds = new Rect( 2537 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2538 taskIds = source.createIntArray(); 2539 taskNames = source.createStringArray(); 2540 final int boundsCount = source.readInt(); 2541 if (boundsCount > 0) { 2542 taskBounds = new Rect[boundsCount]; 2543 for (int i = 0; i < boundsCount; i++) { 2544 taskBounds[i] = new Rect(); 2545 taskBounds[i].set( 2546 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2547 } 2548 } else { 2549 taskBounds = null; 2550 } 2551 taskUserIds = source.createIntArray(); 2552 displayId = source.readInt(); 2553 userId = source.readInt(); 2554 visible = source.readInt() > 0; 2555 position = source.readInt(); 2556 if (source.readInt() > 0) { 2557 topActivity = ComponentName.readFromParcel(source); 2558 } 2559 } 2560 2561 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2562 @Override 2563 public StackInfo createFromParcel(Parcel source) { 2564 return new StackInfo(source); 2565 } 2566 @Override 2567 public StackInfo[] newArray(int size) { 2568 return new StackInfo[size]; 2569 } 2570 }; 2571 2572 public StackInfo() { 2573 } 2574 2575 private StackInfo(Parcel source) { 2576 readFromParcel(source); 2577 } 2578 2579 public String toString(String prefix) { 2580 StringBuilder sb = new StringBuilder(256); 2581 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2582 sb.append(" bounds="); sb.append(bounds.toShortString()); 2583 sb.append(" displayId="); sb.append(displayId); 2584 sb.append(" userId="); sb.append(userId); 2585 sb.append("\n"); 2586 prefix = prefix + " "; 2587 for (int i = 0; i < taskIds.length; ++i) { 2588 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2589 sb.append(": "); sb.append(taskNames[i]); 2590 if (taskBounds != null) { 2591 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2592 } 2593 sb.append(" userId=").append(taskUserIds[i]); 2594 sb.append(" visible=").append(visible); 2595 if (topActivity != null) { 2596 sb.append(" topActivity=").append(topActivity); 2597 } 2598 sb.append("\n"); 2599 } 2600 return sb.toString(); 2601 } 2602 2603 @Override 2604 public String toString() { 2605 return toString(""); 2606 } 2607 } 2608 2609 /** 2610 * @hide 2611 */ 2612 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2613 try { 2614 return getService().clearApplicationUserData(packageName, 2615 observer, UserHandle.myUserId()); 2616 } catch (RemoteException e) { 2617 throw e.rethrowFromSystemServer(); 2618 } 2619 } 2620 2621 /** 2622 * Permits an application to erase its own data from disk. This is equivalent to 2623 * the user choosing to clear the app's data from within the device settings UI. It 2624 * erases all dynamic data associated with the app -- its private data and data in its 2625 * private area on external storage -- but does not remove the installed application 2626 * itself, nor any OBB files. 2627 * 2628 * @return {@code true} if the application successfully requested that the application's 2629 * data be erased; {@code false} otherwise. 2630 */ 2631 public boolean clearApplicationUserData() { 2632 return clearApplicationUserData(mContext.getPackageName(), null); 2633 } 2634 2635 2636 /** 2637 * Permits an application to get the persistent URI permissions granted to another. 2638 * 2639 * <p>Typically called by Settings. 2640 * 2641 * @param packageName application to look for the granted permissions 2642 * @return list of granted URI permissions 2643 * 2644 * @hide 2645 */ 2646 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2647 try { 2648 return getService().getGrantedUriPermissions(packageName, 2649 UserHandle.myUserId()); 2650 } catch (RemoteException e) { 2651 throw e.rethrowFromSystemServer(); 2652 } 2653 } 2654 2655 /** 2656 * Permits an application to clear the persistent URI permissions granted to another. 2657 * 2658 * <p>Typically called by Settings. 2659 * 2660 * @param packageName application to clear its granted permissions 2661 * 2662 * @hide 2663 */ 2664 public void clearGrantedUriPermissions(String packageName) { 2665 try { 2666 getService().clearGrantedUriPermissions(packageName, 2667 UserHandle.myUserId()); 2668 } catch (RemoteException e) { 2669 throw e.rethrowFromSystemServer(); 2670 } 2671 } 2672 2673 /** 2674 * Information you can retrieve about any processes that are in an error condition. 2675 */ 2676 public static class ProcessErrorStateInfo implements Parcelable { 2677 /** 2678 * Condition codes 2679 */ 2680 public static final int NO_ERROR = 0; 2681 public static final int CRASHED = 1; 2682 public static final int NOT_RESPONDING = 2; 2683 2684 /** 2685 * The condition that the process is in. 2686 */ 2687 public int condition; 2688 2689 /** 2690 * The process name in which the crash or error occurred. 2691 */ 2692 public String processName; 2693 2694 /** 2695 * The pid of this process; 0 if none 2696 */ 2697 public int pid; 2698 2699 /** 2700 * The kernel user-ID that has been assigned to this process; 2701 * currently this is not a unique ID (multiple applications can have 2702 * the same uid). 2703 */ 2704 public int uid; 2705 2706 /** 2707 * The activity name associated with the error, if known. May be null. 2708 */ 2709 public String tag; 2710 2711 /** 2712 * A short message describing the error condition. 2713 */ 2714 public String shortMsg; 2715 2716 /** 2717 * A long message describing the error condition. 2718 */ 2719 public String longMsg; 2720 2721 /** 2722 * The stack trace where the error originated. May be null. 2723 */ 2724 public String stackTrace; 2725 2726 /** 2727 * to be deprecated: This value will always be null. 2728 */ 2729 public byte[] crashData = null; 2730 2731 public ProcessErrorStateInfo() { 2732 } 2733 2734 @Override 2735 public int describeContents() { 2736 return 0; 2737 } 2738 2739 @Override 2740 public void writeToParcel(Parcel dest, int flags) { 2741 dest.writeInt(condition); 2742 dest.writeString(processName); 2743 dest.writeInt(pid); 2744 dest.writeInt(uid); 2745 dest.writeString(tag); 2746 dest.writeString(shortMsg); 2747 dest.writeString(longMsg); 2748 dest.writeString(stackTrace); 2749 } 2750 2751 public void readFromParcel(Parcel source) { 2752 condition = source.readInt(); 2753 processName = source.readString(); 2754 pid = source.readInt(); 2755 uid = source.readInt(); 2756 tag = source.readString(); 2757 shortMsg = source.readString(); 2758 longMsg = source.readString(); 2759 stackTrace = source.readString(); 2760 } 2761 2762 public static final Creator<ProcessErrorStateInfo> CREATOR = 2763 new Creator<ProcessErrorStateInfo>() { 2764 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2765 return new ProcessErrorStateInfo(source); 2766 } 2767 public ProcessErrorStateInfo[] newArray(int size) { 2768 return new ProcessErrorStateInfo[size]; 2769 } 2770 }; 2771 2772 private ProcessErrorStateInfo(Parcel source) { 2773 readFromParcel(source); 2774 } 2775 } 2776 2777 /** 2778 * Returns a list of any processes that are currently in an error condition. The result 2779 * will be null if all processes are running properly at this time. 2780 * 2781 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2782 * current error conditions (it will not return an empty list). This list ordering is not 2783 * specified. 2784 */ 2785 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2786 try { 2787 return getService().getProcessesInErrorState(); 2788 } catch (RemoteException e) { 2789 throw e.rethrowFromSystemServer(); 2790 } 2791 } 2792 2793 /** 2794 * Information you can retrieve about a running process. 2795 */ 2796 public static class RunningAppProcessInfo implements Parcelable { 2797 /** 2798 * The name of the process that this object is associated with 2799 */ 2800 public String processName; 2801 2802 /** 2803 * The pid of this process; 0 if none 2804 */ 2805 public int pid; 2806 2807 /** 2808 * The user id of this process. 2809 */ 2810 public int uid; 2811 2812 /** 2813 * All packages that have been loaded into the process. 2814 */ 2815 public String pkgList[]; 2816 2817 /** 2818 * Constant for {@link #flags}: this is an app that is unable to 2819 * correctly save its state when going to the background, 2820 * so it can not be killed while in the background. 2821 * @hide 2822 */ 2823 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2824 2825 /** 2826 * Constant for {@link #flags}: this process is associated with a 2827 * persistent system app. 2828 * @hide 2829 */ 2830 public static final int FLAG_PERSISTENT = 1<<1; 2831 2832 /** 2833 * Constant for {@link #flags}: this process is associated with a 2834 * persistent system app. 2835 * @hide 2836 */ 2837 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2838 2839 /** 2840 * Flags of information. May be any of 2841 * {@link #FLAG_CANT_SAVE_STATE}. 2842 * @hide 2843 */ 2844 public int flags; 2845 2846 /** 2847 * Last memory trim level reported to the process: corresponds to 2848 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2849 * ComponentCallbacks2.onTrimMemory(int)}. 2850 */ 2851 public int lastTrimLevel; 2852 2853 /** 2854 * Constant for {@link #importance}: This process is running the 2855 * foreground UI; that is, it is the thing currently at the top of the screen 2856 * that the user is interacting with. 2857 */ 2858 public static final int IMPORTANCE_FOREGROUND = 100; 2859 2860 /** 2861 * Constant for {@link #importance}: This process is running a foreground 2862 * service, for example to perform music playback even while the user is 2863 * not immediately in the app. This generally indicates that the process 2864 * is doing something the user actively cares about. 2865 */ 2866 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2867 2868 /** 2869 * Constant for {@link #importance}: This process is running the foreground 2870 * UI, but the device is asleep so it is not visible to the user. This means 2871 * the user is not really aware of the process, because they can not see or 2872 * interact with it, but it is quite important because it what they expect to 2873 * return to once unlocking the device. 2874 */ 2875 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2876 2877 /** 2878 * Constant for {@link #importance}: This process is running something 2879 * that is actively visible to the user, though not in the immediate 2880 * foreground. This may be running a window that is behind the current 2881 * foreground (so paused and with its state saved, not interacting with 2882 * the user, but visible to them to some degree); it may also be running 2883 * other services under the system's control that it inconsiders important. 2884 */ 2885 public static final int IMPORTANCE_VISIBLE = 200; 2886 2887 /** 2888 * Constant for {@link #importance}: This process is not something the user 2889 * is directly aware of, but is otherwise perceptable to them to some degree. 2890 */ 2891 public static final int IMPORTANCE_PERCEPTIBLE = 130; 2892 2893 /** 2894 * Constant for {@link #importance}: This process is running an 2895 * application that can not save its state, and thus can't be killed 2896 * while in the background. 2897 * @hide 2898 */ 2899 public static final int IMPORTANCE_CANT_SAVE_STATE = 170; 2900 2901 /** 2902 * Constant for {@link #importance}: This process is contains services 2903 * that should remain running. These are background services apps have 2904 * started, not something the user is aware of, so they may be killed by 2905 * the system relatively freely (though it is generally desired that they 2906 * stay running as long as they want to). 2907 */ 2908 public static final int IMPORTANCE_SERVICE = 300; 2909 2910 /** 2911 * Constant for {@link #importance}: This process process contains 2912 * background code that is expendable. 2913 */ 2914 public static final int IMPORTANCE_BACKGROUND = 400; 2915 2916 /** 2917 * Constant for {@link #importance}: This process is empty of any 2918 * actively running code. 2919 */ 2920 public static final int IMPORTANCE_EMPTY = 500; 2921 2922 /** 2923 * Constant for {@link #importance}: This process does not exist. 2924 */ 2925 public static final int IMPORTANCE_GONE = 1000; 2926 2927 /** @hide */ 2928 public static int procStateToImportance(int procState) { 2929 if (procState == PROCESS_STATE_NONEXISTENT) { 2930 return IMPORTANCE_GONE; 2931 } else if (procState >= PROCESS_STATE_HOME) { 2932 return IMPORTANCE_BACKGROUND; 2933 } else if (procState >= PROCESS_STATE_SERVICE) { 2934 return IMPORTANCE_SERVICE; 2935 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 2936 return IMPORTANCE_CANT_SAVE_STATE; 2937 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 2938 return IMPORTANCE_PERCEPTIBLE; 2939 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 2940 return IMPORTANCE_VISIBLE; 2941 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 2942 return IMPORTANCE_TOP_SLEEPING; 2943 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 2944 return IMPORTANCE_FOREGROUND_SERVICE; 2945 } else { 2946 return IMPORTANCE_FOREGROUND; 2947 } 2948 } 2949 2950 /** @hide */ 2951 public static int importanceToProcState(int importance) { 2952 if (importance == IMPORTANCE_GONE) { 2953 return PROCESS_STATE_NONEXISTENT; 2954 } else if (importance >= IMPORTANCE_BACKGROUND) { 2955 return PROCESS_STATE_HOME; 2956 } else if (importance >= IMPORTANCE_SERVICE) { 2957 return PROCESS_STATE_SERVICE; 2958 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 2959 return PROCESS_STATE_HEAVY_WEIGHT; 2960 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 2961 return PROCESS_STATE_IMPORTANT_BACKGROUND; 2962 } else if (importance >= IMPORTANCE_VISIBLE) { 2963 return PROCESS_STATE_IMPORTANT_FOREGROUND; 2964 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 2965 return PROCESS_STATE_TOP_SLEEPING; 2966 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 2967 return PROCESS_STATE_FOREGROUND_SERVICE; 2968 } else { 2969 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 2970 } 2971 } 2972 2973 /** 2974 * The relative importance level that the system places on this 2975 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 2976 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, 2977 * {@link #IMPORTANCE_BACKGROUND}, or {@link #IMPORTANCE_EMPTY}. These 2978 * constants are numbered so that "more important" values are always 2979 * smaller than "less important" values. 2980 */ 2981 public int importance; 2982 2983 /** 2984 * An additional ordering within a particular {@link #importance} 2985 * category, providing finer-grained information about the relative 2986 * utility of processes within a category. This number means nothing 2987 * except that a smaller values are more recently used (and thus 2988 * more important). Currently an LRU value is only maintained for 2989 * the {@link #IMPORTANCE_BACKGROUND} category, though others may 2990 * be maintained in the future. 2991 */ 2992 public int lru; 2993 2994 /** 2995 * Constant for {@link #importanceReasonCode}: nothing special has 2996 * been specified for the reason for this level. 2997 */ 2998 public static final int REASON_UNKNOWN = 0; 2999 3000 /** 3001 * Constant for {@link #importanceReasonCode}: one of the application's 3002 * content providers is being used by another process. The pid of 3003 * the client process is in {@link #importanceReasonPid} and the 3004 * target provider in this process is in 3005 * {@link #importanceReasonComponent}. 3006 */ 3007 public static final int REASON_PROVIDER_IN_USE = 1; 3008 3009 /** 3010 * Constant for {@link #importanceReasonCode}: one of the application's 3011 * content providers is being used by another process. The pid of 3012 * the client process is in {@link #importanceReasonPid} and the 3013 * target provider in this process is in 3014 * {@link #importanceReasonComponent}. 3015 */ 3016 public static final int REASON_SERVICE_IN_USE = 2; 3017 3018 /** 3019 * The reason for {@link #importance}, if any. 3020 */ 3021 public int importanceReasonCode; 3022 3023 /** 3024 * For the specified values of {@link #importanceReasonCode}, this 3025 * is the process ID of the other process that is a client of this 3026 * process. This will be 0 if no other process is using this one. 3027 */ 3028 public int importanceReasonPid; 3029 3030 /** 3031 * For the specified values of {@link #importanceReasonCode}, this 3032 * is the name of the component that is being used in this process. 3033 */ 3034 public ComponentName importanceReasonComponent; 3035 3036 /** 3037 * When {@link #importanceReasonPid} is non-0, this is the importance 3038 * of the other pid. @hide 3039 */ 3040 public int importanceReasonImportance; 3041 3042 /** 3043 * Current process state, as per PROCESS_STATE_* constants. 3044 * @hide 3045 */ 3046 public int processState; 3047 3048 public RunningAppProcessInfo() { 3049 importance = IMPORTANCE_FOREGROUND; 3050 importanceReasonCode = REASON_UNKNOWN; 3051 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3052 } 3053 3054 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3055 processName = pProcessName; 3056 pid = pPid; 3057 pkgList = pArr; 3058 } 3059 3060 public int describeContents() { 3061 return 0; 3062 } 3063 3064 public void writeToParcel(Parcel dest, int flags) { 3065 dest.writeString(processName); 3066 dest.writeInt(pid); 3067 dest.writeInt(uid); 3068 dest.writeStringArray(pkgList); 3069 dest.writeInt(this.flags); 3070 dest.writeInt(lastTrimLevel); 3071 dest.writeInt(importance); 3072 dest.writeInt(lru); 3073 dest.writeInt(importanceReasonCode); 3074 dest.writeInt(importanceReasonPid); 3075 ComponentName.writeToParcel(importanceReasonComponent, dest); 3076 dest.writeInt(importanceReasonImportance); 3077 dest.writeInt(processState); 3078 } 3079 3080 public void readFromParcel(Parcel source) { 3081 processName = source.readString(); 3082 pid = source.readInt(); 3083 uid = source.readInt(); 3084 pkgList = source.readStringArray(); 3085 flags = source.readInt(); 3086 lastTrimLevel = source.readInt(); 3087 importance = source.readInt(); 3088 lru = source.readInt(); 3089 importanceReasonCode = source.readInt(); 3090 importanceReasonPid = source.readInt(); 3091 importanceReasonComponent = ComponentName.readFromParcel(source); 3092 importanceReasonImportance = source.readInt(); 3093 processState = source.readInt(); 3094 } 3095 3096 public static final Creator<RunningAppProcessInfo> CREATOR = 3097 new Creator<RunningAppProcessInfo>() { 3098 public RunningAppProcessInfo createFromParcel(Parcel source) { 3099 return new RunningAppProcessInfo(source); 3100 } 3101 public RunningAppProcessInfo[] newArray(int size) { 3102 return new RunningAppProcessInfo[size]; 3103 } 3104 }; 3105 3106 private RunningAppProcessInfo(Parcel source) { 3107 readFromParcel(source); 3108 } 3109 } 3110 3111 /** 3112 * Returns a list of application processes installed on external media 3113 * that are running on the device. 3114 * 3115 * <p><b>Note: this method is only intended for debugging or building 3116 * a user-facing process management UI.</b></p> 3117 * 3118 * @return Returns a list of ApplicationInfo records, or null if none 3119 * This list ordering is not specified. 3120 * @hide 3121 */ 3122 public List<ApplicationInfo> getRunningExternalApplications() { 3123 try { 3124 return getService().getRunningExternalApplications(); 3125 } catch (RemoteException e) { 3126 throw e.rethrowFromSystemServer(); 3127 } 3128 } 3129 3130 /** 3131 * Sets the memory trim mode for a process and schedules a memory trim operation. 3132 * 3133 * <p><b>Note: this method is only intended for testing framework.</b></p> 3134 * 3135 * @return Returns true if successful. 3136 * @hide 3137 */ 3138 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3139 try { 3140 return getService().setProcessMemoryTrimLevel(process, userId, 3141 level); 3142 } catch (RemoteException e) { 3143 throw e.rethrowFromSystemServer(); 3144 } 3145 } 3146 3147 /** 3148 * Returns a list of application processes that are running on the device. 3149 * 3150 * <p><b>Note: this method is only intended for debugging or building 3151 * a user-facing process management UI.</b></p> 3152 * 3153 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3154 * running processes (it will not return an empty list). This list ordering is not 3155 * specified. 3156 */ 3157 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3158 try { 3159 return getService().getRunningAppProcesses(); 3160 } catch (RemoteException e) { 3161 throw e.rethrowFromSystemServer(); 3162 } 3163 } 3164 3165 /** 3166 * Return the importance of a given package name, based on the processes that are 3167 * currently running. The return value is one of the importance constants defined 3168 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3169 * processes that this package has code running inside of. If there are no processes 3170 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3171 * @hide 3172 */ 3173 @SystemApi @TestApi 3174 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3175 public int getPackageImportance(String packageName) { 3176 try { 3177 int procState = getService().getPackageProcessState(packageName, 3178 mContext.getOpPackageName()); 3179 return RunningAppProcessInfo.procStateToImportance(procState); 3180 } catch (RemoteException e) { 3181 throw e.rethrowFromSystemServer(); 3182 } 3183 } 3184 3185 /** 3186 * Callback to get reports about changes to the importance of a uid. Use with 3187 * {@link #addOnUidImportanceListener}. 3188 * @hide 3189 */ 3190 @SystemApi @TestApi 3191 public interface OnUidImportanceListener { 3192 /** 3193 * The importance if a given uid has changed. Will be one of the importance 3194 * values in {@link RunningAppProcessInfo}; 3195 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3196 * when the uid is no longer running at all. This callback will happen on a thread 3197 * from a thread pool, not the main UI thread. 3198 * @param uid The uid whose importance has changed. 3199 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3200 */ 3201 void onUidImportance(int uid, int importance); 3202 } 3203 3204 /** 3205 * Start monitoring changes to the imoportance of uids running in the system. 3206 * @param listener The listener callback that will receive change reports. 3207 * @param importanceCutpoint The level of importance in which the caller is interested 3208 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3209 * is used here, you will receive a call each time a uids importance transitions between 3210 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3211 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3212 * 3213 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3214 * permission to use this feature.</p> 3215 * 3216 * @throws IllegalArgumentException If the listener is already registered. 3217 * @throws SecurityException If the caller does not hold 3218 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3219 * @hide 3220 */ 3221 @SystemApi @TestApi 3222 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3223 int importanceCutpoint) { 3224 synchronized (this) { 3225 if (mImportanceListeners.containsKey(listener)) { 3226 throw new IllegalArgumentException("Listener already registered: " + listener); 3227 } 3228 // TODO: implement the cut point in the system process to avoid IPCs. 3229 UidObserver observer = new UidObserver(listener); 3230 try { 3231 getService().registerUidObserver(observer, 3232 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3233 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3234 mContext.getOpPackageName()); 3235 } catch (RemoteException e) { 3236 throw e.rethrowFromSystemServer(); 3237 } 3238 mImportanceListeners.put(listener, observer); 3239 } 3240 } 3241 3242 /** 3243 * Remove an importance listener that was previously registered with 3244 * {@link #addOnUidImportanceListener}. 3245 * 3246 * @throws IllegalArgumentException If the listener is not registered. 3247 * @hide 3248 */ 3249 @SystemApi @TestApi 3250 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3251 synchronized (this) { 3252 UidObserver observer = mImportanceListeners.remove(listener); 3253 if (observer == null) { 3254 throw new IllegalArgumentException("Listener not registered: " + listener); 3255 } 3256 try { 3257 getService().unregisterUidObserver(observer); 3258 } catch (RemoteException e) { 3259 throw e.rethrowFromSystemServer(); 3260 } 3261 } 3262 } 3263 3264 /** 3265 * Return global memory state information for the calling process. This 3266 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3267 * only fields that will be filled in are 3268 * {@link RunningAppProcessInfo#pid}, 3269 * {@link RunningAppProcessInfo#uid}, 3270 * {@link RunningAppProcessInfo#lastTrimLevel}, 3271 * {@link RunningAppProcessInfo#importance}, 3272 * {@link RunningAppProcessInfo#lru}, and 3273 * {@link RunningAppProcessInfo#importanceReasonCode}. 3274 */ 3275 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3276 try { 3277 getService().getMyMemoryState(outState); 3278 } catch (RemoteException e) { 3279 throw e.rethrowFromSystemServer(); 3280 } 3281 } 3282 3283 /** 3284 * Return information about the memory usage of one or more processes. 3285 * 3286 * <p><b>Note: this method is only intended for debugging or building 3287 * a user-facing process management UI.</b></p> 3288 * 3289 * @param pids The pids of the processes whose memory usage is to be 3290 * retrieved. 3291 * @return Returns an array of memory information, one for each 3292 * requested pid. 3293 */ 3294 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3295 try { 3296 return getService().getProcessMemoryInfo(pids); 3297 } catch (RemoteException e) { 3298 throw e.rethrowFromSystemServer(); 3299 } 3300 } 3301 3302 /** 3303 * @deprecated This is now just a wrapper for 3304 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3305 * is no longer available to applications because it allows them to 3306 * break other applications by removing their alarms, stopping their 3307 * services, etc. 3308 */ 3309 @Deprecated 3310 public void restartPackage(String packageName) { 3311 killBackgroundProcesses(packageName); 3312 } 3313 3314 /** 3315 * Have the system immediately kill all background processes associated 3316 * with the given package. This is the same as the kernel killing those 3317 * processes to reclaim memory; the system will take care of restarting 3318 * these processes in the future as needed. 3319 * 3320 * <p>You must hold the permission 3321 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3322 * call this method. 3323 * 3324 * @param packageName The name of the package whose processes are to 3325 * be killed. 3326 */ 3327 public void killBackgroundProcesses(String packageName) { 3328 try { 3329 getService().killBackgroundProcesses(packageName, 3330 UserHandle.myUserId()); 3331 } catch (RemoteException e) { 3332 throw e.rethrowFromSystemServer(); 3333 } 3334 } 3335 3336 /** 3337 * Kills the specified UID. 3338 * @param uid The UID to kill. 3339 * @param reason The reason for the kill. 3340 * 3341 * @hide 3342 */ 3343 @SystemApi 3344 @RequiresPermission(Manifest.permission.KILL_UID) 3345 public void killUid(int uid, String reason) { 3346 try { 3347 getService().killUid(UserHandle.getAppId(uid), 3348 UserHandle.getUserId(uid), reason); 3349 } catch (RemoteException e) { 3350 throw e.rethrowFromSystemServer(); 3351 } 3352 } 3353 3354 /** 3355 * Have the system perform a force stop of everything associated with 3356 * the given application package. All processes that share its uid 3357 * will be killed, all services it has running stopped, all activities 3358 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3359 * broadcast will be sent, so that any of its registered alarms can 3360 * be stopped, notifications removed, etc. 3361 * 3362 * <p>You must hold the permission 3363 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3364 * call this method. 3365 * 3366 * @param packageName The name of the package to be stopped. 3367 * @param userId The user for which the running package is to be stopped. 3368 * 3369 * @hide This is not available to third party applications due to 3370 * it allowing them to break other applications by stopping their 3371 * services, removing their alarms, etc. 3372 */ 3373 public void forceStopPackageAsUser(String packageName, int userId) { 3374 try { 3375 getService().forceStopPackage(packageName, userId); 3376 } catch (RemoteException e) { 3377 throw e.rethrowFromSystemServer(); 3378 } 3379 } 3380 3381 /** 3382 * @see #forceStopPackageAsUser(String, int) 3383 * @hide 3384 */ 3385 @SystemApi 3386 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3387 public void forceStopPackage(String packageName) { 3388 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3389 } 3390 3391 /** 3392 * Get the device configuration attributes. 3393 */ 3394 public ConfigurationInfo getDeviceConfigurationInfo() { 3395 try { 3396 return getService().getDeviceConfigurationInfo(); 3397 } catch (RemoteException e) { 3398 throw e.rethrowFromSystemServer(); 3399 } 3400 } 3401 3402 /** 3403 * Get the preferred density of icons for the launcher. This is used when 3404 * custom drawables are created (e.g., for shortcuts). 3405 * 3406 * @return density in terms of DPI 3407 */ 3408 public int getLauncherLargeIconDensity() { 3409 final Resources res = mContext.getResources(); 3410 final int density = res.getDisplayMetrics().densityDpi; 3411 final int sw = res.getConfiguration().smallestScreenWidthDp; 3412 3413 if (sw < 600) { 3414 // Smaller than approx 7" tablets, use the regular icon size. 3415 return density; 3416 } 3417 3418 switch (density) { 3419 case DisplayMetrics.DENSITY_LOW: 3420 return DisplayMetrics.DENSITY_MEDIUM; 3421 case DisplayMetrics.DENSITY_MEDIUM: 3422 return DisplayMetrics.DENSITY_HIGH; 3423 case DisplayMetrics.DENSITY_TV: 3424 return DisplayMetrics.DENSITY_XHIGH; 3425 case DisplayMetrics.DENSITY_HIGH: 3426 return DisplayMetrics.DENSITY_XHIGH; 3427 case DisplayMetrics.DENSITY_XHIGH: 3428 return DisplayMetrics.DENSITY_XXHIGH; 3429 case DisplayMetrics.DENSITY_XXHIGH: 3430 return DisplayMetrics.DENSITY_XHIGH * 2; 3431 default: 3432 // The density is some abnormal value. Return some other 3433 // abnormal value that is a reasonable scaling of it. 3434 return (int)((density*1.5f)+.5f); 3435 } 3436 } 3437 3438 /** 3439 * Get the preferred launcher icon size. This is used when custom drawables 3440 * are created (e.g., for shortcuts). 3441 * 3442 * @return dimensions of square icons in terms of pixels 3443 */ 3444 public int getLauncherLargeIconSize() { 3445 return getLauncherLargeIconSizeInner(mContext); 3446 } 3447 3448 static int getLauncherLargeIconSizeInner(Context context) { 3449 final Resources res = context.getResources(); 3450 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3451 final int sw = res.getConfiguration().smallestScreenWidthDp; 3452 3453 if (sw < 600) { 3454 // Smaller than approx 7" tablets, use the regular icon size. 3455 return size; 3456 } 3457 3458 final int density = res.getDisplayMetrics().densityDpi; 3459 3460 switch (density) { 3461 case DisplayMetrics.DENSITY_LOW: 3462 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3463 case DisplayMetrics.DENSITY_MEDIUM: 3464 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3465 case DisplayMetrics.DENSITY_TV: 3466 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3467 case DisplayMetrics.DENSITY_HIGH: 3468 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3469 case DisplayMetrics.DENSITY_XHIGH: 3470 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3471 case DisplayMetrics.DENSITY_XXHIGH: 3472 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3473 default: 3474 // The density is some abnormal value. Return some other 3475 // abnormal value that is a reasonable scaling of it. 3476 return (int)((size*1.5f) + .5f); 3477 } 3478 } 3479 3480 /** 3481 * Returns "true" if the user interface is currently being messed with 3482 * by a monkey. 3483 */ 3484 public static boolean isUserAMonkey() { 3485 try { 3486 return getService().isUserAMonkey(); 3487 } catch (RemoteException e) { 3488 throw e.rethrowFromSystemServer(); 3489 } 3490 } 3491 3492 /** 3493 * Returns "true" if device is running in a test harness. 3494 */ 3495 public static boolean isRunningInTestHarness() { 3496 return SystemProperties.getBoolean("ro.test_harness", false); 3497 } 3498 3499 /** 3500 * Returns the launch count of each installed package. 3501 * 3502 * @hide 3503 */ 3504 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3505 try { 3506 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3507 ServiceManager.getService("usagestats")); 3508 if (usageStatsService == null) { 3509 return new HashMap<String, Integer>(); 3510 } 3511 3512 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3513 ActivityThread.currentPackageName()); 3514 if (allPkgUsageStats == null) { 3515 return new HashMap<String, Integer>(); 3516 } 3517 3518 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3519 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3520 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3521 } 3522 3523 return launchCounts; 3524 } catch (RemoteException e) { 3525 Log.w(TAG, "Could not query launch counts", e); 3526 return new HashMap<String, Integer>(); 3527 } 3528 }*/ 3529 3530 /** @hide */ 3531 public static int checkComponentPermission(String permission, int uid, 3532 int owningUid, boolean exported) { 3533 // Root, system server get to do everything. 3534 final int appId = UserHandle.getAppId(uid); 3535 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3536 return PackageManager.PERMISSION_GRANTED; 3537 } 3538 // Isolated processes don't get any permissions. 3539 if (UserHandle.isIsolated(uid)) { 3540 return PackageManager.PERMISSION_DENIED; 3541 } 3542 // If there is a uid that owns whatever is being accessed, it has 3543 // blanket access to it regardless of the permissions it requires. 3544 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3545 return PackageManager.PERMISSION_GRANTED; 3546 } 3547 // If the target is not exported, then nobody else can get to it. 3548 if (!exported) { 3549 /* 3550 RuntimeException here = new RuntimeException("here"); 3551 here.fillInStackTrace(); 3552 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3553 here); 3554 */ 3555 return PackageManager.PERMISSION_DENIED; 3556 } 3557 if (permission == null) { 3558 return PackageManager.PERMISSION_GRANTED; 3559 } 3560 try { 3561 return AppGlobals.getPackageManager() 3562 .checkUidPermission(permission, uid); 3563 } catch (RemoteException e) { 3564 throw e.rethrowFromSystemServer(); 3565 } 3566 } 3567 3568 /** @hide */ 3569 public static int checkUidPermission(String permission, int uid) { 3570 try { 3571 return AppGlobals.getPackageManager() 3572 .checkUidPermission(permission, uid); 3573 } catch (RemoteException e) { 3574 throw e.rethrowFromSystemServer(); 3575 } 3576 } 3577 3578 /** 3579 * @hide 3580 * Helper for dealing with incoming user arguments to system service calls. 3581 * Takes care of checking permissions and converting USER_CURRENT to the 3582 * actual current user. 3583 * 3584 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3585 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3586 * @param userId The user id argument supplied by the caller -- this is the user 3587 * they want to run as. 3588 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3589 * to get a USER_ALL returned and deal with it correctly. If false, 3590 * an exception will be thrown if USER_ALL is supplied. 3591 * @param requireFull If true, the caller must hold 3592 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3593 * different user than their current process; otherwise they must hold 3594 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3595 * @param name Optional textual name of the incoming call; only for generating error messages. 3596 * @param callerPackage Optional package name of caller; only for error messages. 3597 * 3598 * @return Returns the user ID that the call should run as. Will always be a concrete 3599 * user number, unless <var>allowAll</var> is true in which case it could also be 3600 * USER_ALL. 3601 */ 3602 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3603 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3604 if (UserHandle.getUserId(callingUid) == userId) { 3605 return userId; 3606 } 3607 try { 3608 return getService().handleIncomingUser(callingPid, 3609 callingUid, userId, allowAll, requireFull, name, callerPackage); 3610 } catch (RemoteException e) { 3611 throw e.rethrowFromSystemServer(); 3612 } 3613 } 3614 3615 /** 3616 * Gets the userId of the current foreground user. Requires system permissions. 3617 * @hide 3618 */ 3619 @SystemApi 3620 public static int getCurrentUser() { 3621 UserInfo ui; 3622 try { 3623 ui = getService().getCurrentUser(); 3624 return ui != null ? ui.id : 0; 3625 } catch (RemoteException e) { 3626 throw e.rethrowFromSystemServer(); 3627 } 3628 } 3629 3630 /** 3631 * @param userid the user's id. Zero indicates the default user. 3632 * @hide 3633 */ 3634 public boolean switchUser(int userid) { 3635 try { 3636 return getService().switchUser(userid); 3637 } catch (RemoteException e) { 3638 throw e.rethrowFromSystemServer(); 3639 } 3640 } 3641 3642 /** 3643 * Logs out current current foreground user by switching to the system user and stopping the 3644 * user being switched from. 3645 * @hide 3646 */ 3647 public static void logoutCurrentUser() { 3648 int currentUser = ActivityManager.getCurrentUser(); 3649 if (currentUser != UserHandle.USER_SYSTEM) { 3650 try { 3651 getService().switchUser(UserHandle.USER_SYSTEM); 3652 getService().stopUser(currentUser, /* force= */ false, null); 3653 } catch (RemoteException e) { 3654 e.rethrowFromSystemServer(); 3655 } 3656 } 3657 } 3658 3659 /** {@hide} */ 3660 public static final int FLAG_OR_STOPPED = 1 << 0; 3661 /** {@hide} */ 3662 public static final int FLAG_AND_LOCKED = 1 << 1; 3663 /** {@hide} */ 3664 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3665 /** {@hide} */ 3666 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3667 3668 /** 3669 * Return whether the given user is actively running. This means that 3670 * the user is in the "started" state, not "stopped" -- it is currently 3671 * allowed to run code through scheduled alarms, receiving broadcasts, 3672 * etc. A started user may be either the current foreground user or a 3673 * background user; the result here does not distinguish between the two. 3674 * @param userId the user's id. Zero indicates the default user. 3675 * @hide 3676 */ 3677 public boolean isUserRunning(int userId) { 3678 try { 3679 return getService().isUserRunning(userId, 0); 3680 } catch (RemoteException e) { 3681 throw e.rethrowFromSystemServer(); 3682 } 3683 } 3684 3685 /** {@hide} */ 3686 public boolean isVrModePackageEnabled(ComponentName component) { 3687 try { 3688 return getService().isVrModePackageEnabled(component); 3689 } catch (RemoteException e) { 3690 throw e.rethrowFromSystemServer(); 3691 } 3692 } 3693 3694 /** 3695 * Perform a system dump of various state associated with the given application 3696 * package name. This call blocks while the dump is being performed, so should 3697 * not be done on a UI thread. The data will be written to the given file 3698 * descriptor as text. An application must hold the 3699 * {@link android.Manifest.permission#DUMP} permission to make this call. 3700 * @param fd The file descriptor that the dump should be written to. The file 3701 * descriptor is <em>not</em> closed by this function; the caller continues to 3702 * own it. 3703 * @param packageName The name of the package that is to be dumped. 3704 */ 3705 public void dumpPackageState(FileDescriptor fd, String packageName) { 3706 dumpPackageStateStatic(fd, packageName); 3707 } 3708 3709 /** 3710 * @hide 3711 */ 3712 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3713 FileOutputStream fout = new FileOutputStream(fd); 3714 PrintWriter pw = new FastPrintWriter(fout); 3715 dumpService(pw, fd, "package", new String[] { packageName }); 3716 pw.println(); 3717 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3718 "-a", "package", packageName }); 3719 pw.println(); 3720 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3721 pw.println(); 3722 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3723 pw.println(); 3724 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3725 pw.println(); 3726 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3727 pw.flush(); 3728 } 3729 3730 /** 3731 * @hide 3732 */ 3733 public static boolean isSystemReady() { 3734 if (!sSystemReady) { 3735 if (ActivityThread.isSystem()) { 3736 sSystemReady = 3737 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3738 } else { 3739 // Since this is being called from outside system server, system should be 3740 // ready by now. 3741 sSystemReady = true; 3742 } 3743 } 3744 return sSystemReady; 3745 } 3746 3747 /** 3748 * @hide 3749 */ 3750 public static void broadcastStickyIntent(Intent intent, int userId) { 3751 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3752 } 3753 3754 /** 3755 * Convenience for sending a sticky broadcast. For internal use only. 3756 * 3757 * @hide 3758 */ 3759 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3760 try { 3761 getService().broadcastIntent( 3762 null, intent, null, null, Activity.RESULT_OK, null, null, 3763 null /*permission*/, appOp, null, false, true, userId); 3764 } catch (RemoteException ex) { 3765 } 3766 } 3767 3768 /** 3769 * @hide 3770 */ 3771 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3772 String tag) { 3773 try { 3774 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3775 sourceUid, sourcePkg, tag); 3776 } catch (RemoteException ex) { 3777 } 3778 } 3779 3780 /** 3781 * @hide 3782 */ 3783 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3784 try { 3785 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3786 } catch (RemoteException ex) { 3787 } 3788 } 3789 3790 /** 3791 * @hide 3792 */ 3793 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3794 try { 3795 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3796 } catch (RemoteException ex) { 3797 } 3798 } 3799 3800 /** 3801 * @hide 3802 */ 3803 public static IActivityManager getService() { 3804 return IActivityManagerSingleton.get(); 3805 } 3806 3807 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3808 new Singleton<IActivityManager>() { 3809 @Override 3810 protected IActivityManager create() { 3811 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3812 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3813 return am; 3814 } 3815 }; 3816 3817 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3818 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3819 IBinder service = ServiceManager.checkService(name); 3820 if (service == null) { 3821 pw.println(" (Service not found)"); 3822 return; 3823 } 3824 TransferPipe tp = null; 3825 try { 3826 pw.flush(); 3827 tp = new TransferPipe(); 3828 tp.setBufferPrefix(" "); 3829 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3830 tp.go(fd, 10000); 3831 } catch (Throwable e) { 3832 if (tp != null) { 3833 tp.kill(); 3834 } 3835 pw.println("Failure dumping service:"); 3836 e.printStackTrace(pw); 3837 } 3838 } 3839 3840 /** 3841 * Request that the system start watching for the calling process to exceed a pss 3842 * size as given here. Once called, the system will look for any occasions where it 3843 * sees the associated process with a larger pss size and, when this happens, automatically 3844 * pull a heap dump from it and allow the user to share the data. Note that this request 3845 * continues running even if the process is killed and restarted. To remove the watch, 3846 * use {@link #clearWatchHeapLimit()}. 3847 * 3848 * <p>This API only work if the calling process has been marked as 3849 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3850 * (userdebug or eng) build.</p> 3851 * 3852 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3853 * handle heap limit reports themselves.</p> 3854 * 3855 * @param pssSize The size in bytes to set the limit at. 3856 */ 3857 public void setWatchHeapLimit(long pssSize) { 3858 try { 3859 getService().setDumpHeapDebugLimit(null, 0, pssSize, 3860 mContext.getPackageName()); 3861 } catch (RemoteException e) { 3862 throw e.rethrowFromSystemServer(); 3863 } 3864 } 3865 3866 /** 3867 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 3868 * If your package has an activity handling this action, it will be launched with the 3869 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 3870 * match the activty must support this action and a MIME type of "*/*". 3871 */ 3872 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 3873 3874 /** 3875 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 3876 */ 3877 public void clearWatchHeapLimit() { 3878 try { 3879 getService().setDumpHeapDebugLimit(null, 0, 0, null); 3880 } catch (RemoteException e) { 3881 throw e.rethrowFromSystemServer(); 3882 } 3883 } 3884 3885 /** 3886 * @hide 3887 */ 3888 public void startLockTaskMode(int taskId) { 3889 try { 3890 getService().startLockTaskModeById(taskId); 3891 } catch (RemoteException e) { 3892 throw e.rethrowFromSystemServer(); 3893 } 3894 } 3895 3896 /** 3897 * @hide 3898 */ 3899 public void stopLockTaskMode() { 3900 try { 3901 getService().stopLockTaskMode(); 3902 } catch (RemoteException e) { 3903 throw e.rethrowFromSystemServer(); 3904 } 3905 } 3906 3907 /** 3908 * Return whether currently in lock task mode. When in this mode 3909 * no new tasks can be created or switched to. 3910 * 3911 * @see Activity#startLockTask() 3912 * 3913 * @deprecated Use {@link #getLockTaskModeState} instead. 3914 */ 3915 @Deprecated 3916 public boolean isInLockTaskMode() { 3917 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 3918 } 3919 3920 /** 3921 * Return the current state of task locking. The three possible outcomes 3922 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 3923 * and {@link #LOCK_TASK_MODE_PINNED}. 3924 * 3925 * @see Activity#startLockTask() 3926 */ 3927 public int getLockTaskModeState() { 3928 try { 3929 return getService().getLockTaskModeState(); 3930 } catch (RemoteException e) { 3931 throw e.rethrowFromSystemServer(); 3932 } 3933 } 3934 3935 /** 3936 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 3937 * thread can be a VR thread in a process at a time, and that thread may be subject to 3938 * restrictions on the amount of time it can run. 3939 * 3940 * To reset the VR thread for an application, a tid of 0 can be passed. 3941 * 3942 * @see android.os.Process#myTid() 3943 * @param tid tid of the VR thread 3944 */ 3945 public static void setVrThread(int tid) { 3946 try { 3947 getService().setVrThread(tid); 3948 } catch (RemoteException e) { 3949 // pass 3950 } 3951 } 3952 3953 /** 3954 * The AppTask allows you to manage your own application's tasks. 3955 * See {@link android.app.ActivityManager#getAppTasks()} 3956 */ 3957 public static class AppTask { 3958 private IAppTask mAppTaskImpl; 3959 3960 /** @hide */ 3961 public AppTask(IAppTask task) { 3962 mAppTaskImpl = task; 3963 } 3964 3965 /** 3966 * Finishes all activities in this task and removes it from the recent tasks list. 3967 */ 3968 public void finishAndRemoveTask() { 3969 try { 3970 mAppTaskImpl.finishAndRemoveTask(); 3971 } catch (RemoteException e) { 3972 throw e.rethrowFromSystemServer(); 3973 } 3974 } 3975 3976 /** 3977 * Get the RecentTaskInfo associated with this task. 3978 * 3979 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 3980 */ 3981 public RecentTaskInfo getTaskInfo() { 3982 try { 3983 return mAppTaskImpl.getTaskInfo(); 3984 } catch (RemoteException e) { 3985 throw e.rethrowFromSystemServer(); 3986 } 3987 } 3988 3989 /** 3990 * Bring this task to the foreground. If it contains activities, they will be 3991 * brought to the foreground with it and their instances re-created if needed. 3992 * If it doesn't contain activities, the root activity of the task will be 3993 * re-launched. 3994 */ 3995 public void moveToFront() { 3996 try { 3997 mAppTaskImpl.moveToFront(); 3998 } catch (RemoteException e) { 3999 throw e.rethrowFromSystemServer(); 4000 } 4001 } 4002 4003 /** 4004 * Start an activity in this task. Brings the task to the foreground. If this task 4005 * is not currently active (that is, its id < 0), then a new activity for the given 4006 * Intent will be launched as the root of the task and the task brought to the 4007 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4008 * an activity to launch in a new task, then a new activity for the given Intent will 4009 * be launched on top of the task and the task brought to the foreground. If this 4010 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4011 * or would otherwise be launched in to a new task, then the activity not launched but 4012 * this task be brought to the foreground and a new intent delivered to the top 4013 * activity if appropriate. 4014 * 4015 * <p>In other words, you generally want to use an Intent here that does not specify 4016 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4017 * and let the system do the right thing.</p> 4018 * 4019 * @param intent The Intent describing the new activity to be launched on the task. 4020 * @param options Optional launch options. 4021 * 4022 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4023 */ 4024 public void startActivity(Context context, Intent intent, Bundle options) { 4025 ActivityThread thread = ActivityThread.currentActivityThread(); 4026 thread.getInstrumentation().execStartActivityFromAppTask(context, 4027 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4028 } 4029 4030 /** 4031 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4032 * Intent of this AppTask. 4033 * 4034 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4035 * be set; otherwise, it will be cleared. 4036 */ 4037 public void setExcludeFromRecents(boolean exclude) { 4038 try { 4039 mAppTaskImpl.setExcludeFromRecents(exclude); 4040 } catch (RemoteException e) { 4041 throw e.rethrowFromSystemServer(); 4042 } 4043 } 4044 } 4045} 4046