ActivityManager.java revision 58105199f56ec0409f11908619ee6f420edadbe8
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.IntDef; 21import android.annotation.NonNull; 22import android.annotation.Nullable; 23import android.annotation.RequiresPermission; 24import android.annotation.SystemApi; 25import android.annotation.TestApi; 26import android.content.pm.ActivityInfo; 27import android.content.res.Configuration; 28import android.graphics.Canvas; 29import android.graphics.GraphicBuffer; 30import android.graphics.Matrix; 31import android.graphics.Point; 32import android.os.BatteryStats; 33import android.os.Build; 34import android.os.Build.VERSION_CODES; 35import android.os.IBinder; 36import android.os.ParcelFileDescriptor; 37 38import com.android.internal.app.procstats.ProcessStats; 39import com.android.internal.os.RoSystemProperties; 40import com.android.internal.os.TransferPipe; 41import com.android.internal.util.FastPrintWriter; 42import com.android.server.LocalServices; 43 44import android.content.ComponentName; 45import android.content.Context; 46import android.content.Intent; 47import android.content.UriPermission; 48import android.content.pm.ApplicationInfo; 49import android.content.pm.ConfigurationInfo; 50import android.content.pm.IPackageDataObserver; 51import android.content.pm.PackageManager; 52import android.content.pm.ParceledListSlice; 53import android.content.pm.UserInfo; 54import android.content.res.Resources; 55import android.graphics.Bitmap; 56import android.graphics.Color; 57import android.graphics.Rect; 58import android.os.Bundle; 59import android.os.Debug; 60import android.os.Handler; 61import android.os.Parcel; 62import android.os.Parcelable; 63import android.os.Process; 64import android.os.RemoteException; 65import android.os.ServiceManager; 66import android.os.SystemProperties; 67import android.os.UserHandle; 68import android.text.TextUtils; 69import android.util.ArrayMap; 70import android.util.DisplayMetrics; 71import android.util.Singleton; 72import android.util.Size; 73 74import org.xmlpull.v1.XmlSerializer; 75 76import java.io.FileDescriptor; 77import java.io.FileOutputStream; 78import java.io.IOException; 79import java.io.PrintWriter; 80import java.lang.annotation.Retention; 81import java.lang.annotation.RetentionPolicy; 82import java.util.ArrayList; 83import java.util.List; 84 85/** 86 * <p> 87 * This class gives information about, and interacts 88 * with, activities, services, and the containing 89 * process. 90 * </p> 91 * 92 * <p> 93 * A number of the methods in this class are for 94 * debugging or informational purposes and they should 95 * not be used to affect any runtime behavior of 96 * your app. These methods are called out as such in 97 * the method level documentation. 98 * </p> 99 * 100 *<p> 101 * Most application developers should not have the need to 102 * use this class, most of whose methods are for specialized 103 * use cases. However, a few methods are more broadly applicable. 104 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 105 * enables your app to detect whether it is running on a low-memory device, 106 * and behave accordingly. 107 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 108 * is for apps with reset-data functionality. 109 * </p> 110 * 111 * <p> 112 * In some special use cases, where an app interacts with 113 * its Task stack, the app may use the 114 * {@link android.app.ActivityManager.AppTask} and 115 * {@link android.app.ActivityManager.RecentTaskInfo} inner 116 * classes. However, in general, the methods in this class should 117 * be used for testing and debugging purposes only. 118 * </p> 119 */ 120public class ActivityManager { 121 private static String TAG = "ActivityManager"; 122 123 private static int gMaxRecentTasks = -1; 124 125 private static final int NUM_ALLOWED_PIP_ACTIONS = 3; 126 127 private final Context mContext; 128 129 private static volatile boolean sSystemReady = false; 130 131 /** 132 * System property to enable task snapshots. 133 * @hide 134 */ 135 public final static boolean ENABLE_TASK_SNAPSHOTS; 136 137 static { 138 ENABLE_TASK_SNAPSHOTS = SystemProperties.getBoolean("persist.enable_task_snapshots", true); 139 } 140 141 static final class UidObserver extends IUidObserver.Stub { 142 final OnUidImportanceListener mListener; 143 final Context mContext; 144 145 UidObserver(OnUidImportanceListener listener, Context clientContext) { 146 mListener = listener; 147 mContext = clientContext; 148 } 149 150 @Override 151 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 152 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 153 procState, mContext)); 154 } 155 156 @Override 157 public void onUidGone(int uid, boolean disabled) { 158 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 159 } 160 161 @Override 162 public void onUidActive(int uid) { 163 } 164 165 @Override 166 public void onUidIdle(int uid, boolean disabled) { 167 } 168 } 169 170 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 171 172 /** 173 * Defines acceptable types of bugreports. 174 * @hide 175 */ 176 @Retention(RetentionPolicy.SOURCE) 177 @IntDef({ 178 BUGREPORT_OPTION_FULL, 179 BUGREPORT_OPTION_INTERACTIVE, 180 BUGREPORT_OPTION_REMOTE, 181 BUGREPORT_OPTION_WEAR, 182 BUGREPORT_OPTION_TELEPHONY 183 }) 184 public @interface BugreportMode {} 185 /** 186 * Takes a bugreport without user interference (and hence causing less 187 * interference to the system), but includes all sections. 188 * @hide 189 */ 190 public static final int BUGREPORT_OPTION_FULL = 0; 191 /** 192 * Allows user to monitor progress and enter additional data; might not include all 193 * sections. 194 * @hide 195 */ 196 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 197 /** 198 * Takes a bugreport requested remotely by administrator of the Device Owner app, 199 * not the device's user. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_REMOTE = 2; 203 /** 204 * Takes a bugreport on a wearable device. 205 * @hide 206 */ 207 public static final int BUGREPORT_OPTION_WEAR = 3; 208 209 /** 210 * Takes a lightweight version of bugreport that only includes a few, urgent sections 211 * used to report telephony bugs. 212 * @hide 213 */ 214 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 215 216 /** 217 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 218 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 219 * uninstalled in lieu of the declaring one. The package named here must be 220 * signed with the same certificate as the one declaring the {@code <meta-data>}. 221 */ 222 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 223 224 /** 225 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 226 * @hide 227 */ 228 public static final int START_VOICE_HIDDEN_SESSION = -10; 229 230 /** 231 * Result for IActivityManager.startVoiceActivity: active session does not match 232 * the requesting token. 233 * @hide 234 */ 235 public static final int START_VOICE_NOT_ACTIVE_SESSION = -9; 236 237 /** 238 * Result for IActivityManager.startActivity: trying to start a background user 239 * activity that shouldn't be displayed for all users. 240 * @hide 241 */ 242 public static final int START_NOT_CURRENT_USER_ACTIVITY = -8; 243 244 /** 245 * Result for IActivityManager.startActivity: trying to start an activity under voice 246 * control when that activity does not support the VOICE category. 247 * @hide 248 */ 249 public static final int START_NOT_VOICE_COMPATIBLE = -7; 250 251 /** 252 * Result for IActivityManager.startActivity: an error where the 253 * start had to be canceled. 254 * @hide 255 */ 256 public static final int START_CANCELED = -6; 257 258 /** 259 * Result for IActivityManager.startActivity: an error where the 260 * thing being started is not an activity. 261 * @hide 262 */ 263 public static final int START_NOT_ACTIVITY = -5; 264 265 /** 266 * Result for IActivityManager.startActivity: an error where the 267 * caller does not have permission to start the activity. 268 * @hide 269 */ 270 public static final int START_PERMISSION_DENIED = -4; 271 272 /** 273 * Result for IActivityManager.startActivity: an error where the 274 * caller has requested both to forward a result and to receive 275 * a result. 276 * @hide 277 */ 278 public static final int START_FORWARD_AND_REQUEST_CONFLICT = -3; 279 280 /** 281 * Result for IActivityManager.startActivity: an error where the 282 * requested class is not found. 283 * @hide 284 */ 285 public static final int START_CLASS_NOT_FOUND = -2; 286 287 /** 288 * Result for IActivityManager.startActivity: an error where the 289 * given Intent could not be resolved to an activity. 290 * @hide 291 */ 292 public static final int START_INTENT_NOT_RESOLVED = -1; 293 294 /** 295 * Result for IActivityManaqer.startActivity: the activity was started 296 * successfully as normal. 297 * @hide 298 */ 299 public static final int START_SUCCESS = 0; 300 301 /** 302 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 303 * be executed if it is the recipient, and that is indeed the case. 304 * @hide 305 */ 306 public static final int START_RETURN_INTENT_TO_CALLER = 1; 307 308 /** 309 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 310 * a task was simply brought to the foreground. 311 * @hide 312 */ 313 public static final int START_TASK_TO_FRONT = 2; 314 315 /** 316 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 317 * the given Intent was given to the existing top activity. 318 * @hide 319 */ 320 public static final int START_DELIVERED_TO_TOP = 3; 321 322 /** 323 * Result for IActivityManaqer.startActivity: request was canceled because 324 * app switches are temporarily canceled to ensure the user's last request 325 * (such as pressing home) is performed. 326 * @hide 327 */ 328 public static final int START_SWITCHES_CANCELED = 4; 329 330 /** 331 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 332 * while in Lock Task Mode. 333 * @hide 334 */ 335 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 5; 336 337 /** 338 * Flag for IActivityManaqer.startActivity: do special start mode where 339 * a new activity is launched only if it is needed. 340 * @hide 341 */ 342 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 343 344 /** 345 * Flag for IActivityManaqer.startActivity: launch the app for 346 * debugging. 347 * @hide 348 */ 349 public static final int START_FLAG_DEBUG = 1<<1; 350 351 /** 352 * Flag for IActivityManaqer.startActivity: launch the app for 353 * allocation tracking. 354 * @hide 355 */ 356 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 357 358 /** 359 * Flag for IActivityManaqer.startActivity: launch the app with 360 * native debugging support. 361 * @hide 362 */ 363 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 364 365 /** 366 * Result for IActivityManaqer.broadcastIntent: success! 367 * @hide 368 */ 369 public static final int BROADCAST_SUCCESS = 0; 370 371 /** 372 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 373 * a sticky intent without appropriate permission. 374 * @hide 375 */ 376 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 377 378 /** 379 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 380 * to a stopped user. Fail. 381 * @hide 382 */ 383 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 384 385 /** 386 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 387 * for a sendBroadcast operation. 388 * @hide 389 */ 390 public static final int INTENT_SENDER_BROADCAST = 1; 391 392 /** 393 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 394 * for a startActivity operation. 395 * @hide 396 */ 397 public static final int INTENT_SENDER_ACTIVITY = 2; 398 399 /** 400 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 401 * for an activity result operation. 402 * @hide 403 */ 404 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 405 406 /** 407 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 408 * for a startService operation. 409 * @hide 410 */ 411 public static final int INTENT_SENDER_SERVICE = 4; 412 413 /** 414 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 415 * for a startForegroundService operation. 416 * @hide 417 */ 418 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 419 420 /** @hide User operation call: success! */ 421 public static final int USER_OP_SUCCESS = 0; 422 423 /** @hide User operation call: given user id is not known. */ 424 public static final int USER_OP_UNKNOWN_USER = -1; 425 426 /** @hide User operation call: given user id is the current user, can't be stopped. */ 427 public static final int USER_OP_IS_CURRENT = -2; 428 429 /** @hide User operation call: system user can't be stopped. */ 430 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 431 432 /** @hide User operation call: one of related users cannot be stopped. */ 433 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 434 435 /** @hide Not a real process state. */ 436 public static final int PROCESS_STATE_UNKNOWN = -1; 437 438 /** @hide Process is a persistent system process. */ 439 public static final int PROCESS_STATE_PERSISTENT = 0; 440 441 /** @hide Process is a persistent system process and is doing UI. */ 442 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 443 444 /** @hide Process is hosting the current top activities. Note that this covers 445 * all activities that are visible to the user. */ 446 public static final int PROCESS_STATE_TOP = 2; 447 448 /** @hide Process is hosting a foreground service due to a system binding. */ 449 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 450 451 /** @hide Process is hosting a foreground service. */ 452 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 453 454 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 455 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 456 457 /** @hide Process is important to the user, and something they are aware of. */ 458 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 459 460 /** @hide Process is important to the user, but not something they are aware of. */ 461 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 462 463 /** @hide Process is in the background running a backup/restore operation. */ 464 public static final int PROCESS_STATE_BACKUP = 8; 465 466 /** @hide Process is in the background, but it can't restore its state so we want 467 * to try to avoid killing it. */ 468 public static final int PROCESS_STATE_HEAVY_WEIGHT = 9; 469 470 /** @hide Process is in the background running a service. Unlike oom_adj, this level 471 * is used for both the normal running in background state and the executing 472 * operations state. */ 473 public static final int PROCESS_STATE_SERVICE = 10; 474 475 /** @hide Process is in the background running a receiver. Note that from the 476 * perspective of oom_adj receivers run at a higher foreground level, but for our 477 * prioritization here that is not necessary and putting them below services means 478 * many fewer changes in some process states as they receive broadcasts. */ 479 public static final int PROCESS_STATE_RECEIVER = 11; 480 481 /** @hide Process is in the background but hosts the home activity. */ 482 public static final int PROCESS_STATE_HOME = 12; 483 484 /** @hide Process is in the background but hosts the last shown activity. */ 485 public static final int PROCESS_STATE_LAST_ACTIVITY = 13; 486 487 /** @hide Process is being cached for later use and contains activities. */ 488 public static final int PROCESS_STATE_CACHED_ACTIVITY = 14; 489 490 /** @hide Process is being cached for later use and is a client of another cached 491 * process that contains activities. */ 492 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 15; 493 494 /** @hide Process is being cached for later use and is empty. */ 495 public static final int PROCESS_STATE_CACHED_EMPTY = 16; 496 497 /** @hide Process does not exist. */ 498 public static final int PROCESS_STATE_NONEXISTENT = 17; 499 500 /** @hide The lowest process state number */ 501 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 502 503 /** @hide The highest process state number */ 504 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 505 506 /** @hide Should this process state be considered a background state? */ 507 public static final boolean isProcStateBackground(int procState) { 508 return procState >= PROCESS_STATE_BACKUP; 509 } 510 511 /** @hide requestType for assist context: only basic information. */ 512 public static final int ASSIST_CONTEXT_BASIC = 0; 513 514 /** @hide requestType for assist context: generate full AssistStructure. */ 515 public static final int ASSIST_CONTEXT_FULL = 1; 516 517 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 518 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 519 520 /** @hide Flag for registerUidObserver: report changes in process state. */ 521 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 522 523 /** @hide Flag for registerUidObserver: report uid gone. */ 524 public static final int UID_OBSERVER_GONE = 1<<1; 525 526 /** @hide Flag for registerUidObserver: report uid has become idle. */ 527 public static final int UID_OBSERVER_IDLE = 1<<2; 528 529 /** @hide Flag for registerUidObserver: report uid has become active. */ 530 public static final int UID_OBSERVER_ACTIVE = 1<<3; 531 532 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 533 public static final int APP_START_MODE_NORMAL = 0; 534 535 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 536 public static final int APP_START_MODE_DELAYED = 1; 537 538 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 539 * rigid errors (throwing exception). */ 540 public static final int APP_START_MODE_DELAYED_RIGID = 2; 541 542 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 543 * launches; this is the mode for ephemeral apps. */ 544 public static final int APP_START_MODE_DISABLED = 3; 545 546 /** 547 * Lock task mode is not active. 548 */ 549 public static final int LOCK_TASK_MODE_NONE = 0; 550 551 /** 552 * Full lock task mode is active. 553 */ 554 public static final int LOCK_TASK_MODE_LOCKED = 1; 555 556 /** 557 * App pinning mode is active. 558 */ 559 public static final int LOCK_TASK_MODE_PINNED = 2; 560 561 Point mAppTaskThumbnailSize; 562 563 /*package*/ ActivityManager(Context context, Handler handler) { 564 mContext = context; 565 } 566 567 /** 568 * Screen compatibility mode: the application most always run in 569 * compatibility mode. 570 * @hide 571 */ 572 public static final int COMPAT_MODE_ALWAYS = -1; 573 574 /** 575 * Screen compatibility mode: the application can never run in 576 * compatibility mode. 577 * @hide 578 */ 579 public static final int COMPAT_MODE_NEVER = -2; 580 581 /** 582 * Screen compatibility mode: unknown. 583 * @hide 584 */ 585 public static final int COMPAT_MODE_UNKNOWN = -3; 586 587 /** 588 * Screen compatibility mode: the application currently has compatibility 589 * mode disabled. 590 * @hide 591 */ 592 public static final int COMPAT_MODE_DISABLED = 0; 593 594 /** 595 * Screen compatibility mode: the application currently has compatibility 596 * mode enabled. 597 * @hide 598 */ 599 public static final int COMPAT_MODE_ENABLED = 1; 600 601 /** 602 * Screen compatibility mode: request to toggle the application's 603 * compatibility mode. 604 * @hide 605 */ 606 public static final int COMPAT_MODE_TOGGLE = 2; 607 608 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 609 SystemProperties.getBoolean("debug.force_low_ram", false); 610 611 /** @hide */ 612 public static class StackId { 613 /** Invalid stack ID. */ 614 public static final int INVALID_STACK_ID = -1; 615 616 /** First static stack ID. */ 617 public static final int FIRST_STATIC_STACK_ID = 0; 618 619 /** Home activity stack ID. */ 620 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 621 622 /** ID of stack where fullscreen activities are normally launched into. */ 623 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 624 625 /** ID of stack where freeform/resized activities are normally launched into. */ 626 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 627 628 /** ID of stack that occupies a dedicated region of the screen. */ 629 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 630 631 /** ID of stack that always on top (always visible) when it exist. */ 632 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 633 634 /** ID of stack that contains the Recents activity. */ 635 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 636 637 /** ID of stack that contains activities launched by the assistant. */ 638 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 639 640 /** Last static stack stack ID. */ 641 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 642 643 /** Start of ID range used by stacks that are created dynamically. */ 644 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 645 646 public static boolean isStaticStack(int stackId) { 647 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 648 } 649 650 public static boolean isDynamicStack(int stackId) { 651 return stackId >= FIRST_DYNAMIC_STACK_ID; 652 } 653 654 /** 655 * Returns true if the activities contained in the input stack display a shadow around 656 * their border. 657 */ 658 public static boolean hasWindowShadow(int stackId) { 659 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 660 } 661 662 /** 663 * Returns true if the activities contained in the input stack display a decor view. 664 */ 665 public static boolean hasWindowDecor(int stackId) { 666 return stackId == FREEFORM_WORKSPACE_STACK_ID; 667 } 668 669 /** 670 * Returns true if the tasks contained in the stack can be resized independently of the 671 * stack. 672 */ 673 public static boolean isTaskResizeAllowed(int stackId) { 674 return stackId == FREEFORM_WORKSPACE_STACK_ID; 675 } 676 677 /** Returns true if the task bounds should persist across power cycles. */ 678 public static boolean persistTaskBounds(int stackId) { 679 return stackId == FREEFORM_WORKSPACE_STACK_ID; 680 } 681 682 /** 683 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 684 */ 685 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 686 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 687 } 688 689 /** 690 * Returns true if we try to maintain focus in the current stack when the top activity 691 * finishes. 692 */ 693 public static boolean keepFocusInStackIfPossible(int stackId) { 694 return stackId == FREEFORM_WORKSPACE_STACK_ID 695 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 696 } 697 698 /** 699 * Returns true if Stack size is affected by the docked stack changing size. 700 */ 701 public static boolean isResizeableByDockedStack(int stackId) { 702 return isStaticStack(stackId) && stackId != DOCKED_STACK_ID 703 && stackId != PINNED_STACK_ID && stackId != ASSISTANT_STACK_ID; 704 } 705 706 /** 707 * Returns true if the size of tasks in the input stack are affected by the docked stack 708 * changing size. 709 */ 710 public static boolean isTaskResizeableByDockedStack(int stackId) { 711 return isStaticStack(stackId) && stackId != FREEFORM_WORKSPACE_STACK_ID 712 && stackId != DOCKED_STACK_ID && stackId != PINNED_STACK_ID 713 && stackId != ASSISTANT_STACK_ID; 714 } 715 716 /** 717 * Returns true if the input stack is affected by drag resizing. 718 */ 719 public static boolean isStackAffectedByDragResizing(int stackId) { 720 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 721 && stackId != ASSISTANT_STACK_ID; 722 } 723 724 /** 725 * Returns true if the windows of tasks being moved to the target stack from the source 726 * stack should be replaced, meaning that window manager will keep the old window around 727 * until the new is ready. 728 */ 729 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 730 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 731 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 732 } 733 734 /** 735 * Return whether a stackId is a stack containing floating windows. Floating windows 736 * are laid out differently as they are allowed to extend past the display bounds 737 * without overscan insets. 738 */ 739 public static boolean tasksAreFloating(int stackId) { 740 return stackId == FREEFORM_WORKSPACE_STACK_ID 741 || stackId == PINNED_STACK_ID; 742 } 743 744 /** 745 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 746 * are generally fullscreen stacks. 747 */ 748 public static boolean isBackdropToTranslucentActivity(int stackId) { 749 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 750 || stackId == ASSISTANT_STACK_ID; 751 } 752 753 /** 754 * Returns true if animation specs should be constructed for app transition that moves 755 * the task to the specified stack. 756 */ 757 public static boolean useAnimationSpecForAppTransition(int stackId) { 758 // TODO: INVALID_STACK_ID is also animated because we don't persist stack id's across 759 // reboots. 760 return stackId == FREEFORM_WORKSPACE_STACK_ID 761 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 762 || stackId == ASSISTANT_STACK_ID 763 || stackId == DOCKED_STACK_ID 764 || stackId == INVALID_STACK_ID; 765 } 766 767 /** 768 * Returns true if the windows in the stack can receive input keys. 769 */ 770 public static boolean canReceiveKeys(int stackId) { 771 return stackId != PINNED_STACK_ID; 772 } 773 774 /** 775 * Returns true if the stack can be visible above lockscreen. 776 */ 777 public static boolean isAllowedOverLockscreen(int stackId) { 778 return stackId == HOME_STACK_ID || stackId == FULLSCREEN_WORKSPACE_STACK_ID || 779 stackId == ASSISTANT_STACK_ID; 780 } 781 782 /** 783 * Returns true if activities from stasks in the given {@param stackId} are allowed to 784 * enter picture-in-picture. 785 */ 786 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 787 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 788 stackId != RECENTS_STACK_ID; 789 } 790 791 public static boolean isAlwaysOnTop(int stackId) { 792 return stackId == PINNED_STACK_ID; 793 } 794 795 /** 796 * Returns true if the top task in the task is allowed to return home when finished and 797 * there are other tasks in the stack. 798 */ 799 public static boolean allowTopTaskToReturnHome(int stackId) { 800 return stackId != PINNED_STACK_ID; 801 } 802 803 /** 804 * Returns true if the stack should be resized to match the bounds specified by 805 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 806 */ 807 public static boolean resizeStackWithLaunchBounds(int stackId) { 808 return stackId == PINNED_STACK_ID; 809 } 810 811 /** 812 * Returns true if any visible windows belonging to apps in this stack should be kept on 813 * screen when the app is killed due to something like the low memory killer. 814 */ 815 public static boolean keepVisibleDeadAppWindowOnScreen(int stackId) { 816 return stackId != PINNED_STACK_ID; 817 } 818 819 /** 820 * Returns true if the backdrop on the client side should match the frame of the window. 821 * Returns false, if the backdrop should be fullscreen. 822 */ 823 public static boolean useWindowFrameForBackdrop(int stackId) { 824 return stackId == FREEFORM_WORKSPACE_STACK_ID || stackId == PINNED_STACK_ID; 825 } 826 827 /** 828 * Returns true if a window from the specified stack with {@param stackId} are normally 829 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 830 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 831 * etc. 832 */ 833 public static boolean normallyFullscreenWindows(int stackId) { 834 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 835 && stackId != DOCKED_STACK_ID; 836 } 837 838 /** 839 * Returns true if the input stack id should only be present on a device that supports 840 * multi-window mode. 841 * @see android.app.ActivityManager#supportsMultiWindow 842 */ 843 public static boolean isMultiWindowStack(int stackId) { 844 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 845 || stackId == DOCKED_STACK_ID; 846 } 847 848 /** 849 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 850 */ 851 public static boolean isHomeOrRecentsStack(int stackId) { 852 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 853 } 854 855 /** 856 * Returns true if activities contained in this stack can request visible behind by 857 * calling {@link Activity#requestVisibleBehind}. 858 */ 859 public static boolean activitiesCanRequestVisibleBehind(int stackId) { 860 return stackId == FULLSCREEN_WORKSPACE_STACK_ID || 861 stackId == ASSISTANT_STACK_ID; 862 } 863 864 /** 865 * Returns true if this stack may be scaled without resizing, and windows within may need 866 * to be configured as such. 867 */ 868 public static boolean windowsAreScaleable(int stackId) { 869 return stackId == PINNED_STACK_ID; 870 } 871 872 /** 873 * Returns true if windows in this stack should be given move animations by default. 874 */ 875 public static boolean hasMovementAnimations(int stackId) { 876 return stackId != PINNED_STACK_ID; 877 } 878 879 /** Returns true if the input stack and its content can affect the device orientation. */ 880 public static boolean canSpecifyOrientation(int stackId) { 881 return stackId == HOME_STACK_ID 882 || stackId == RECENTS_STACK_ID 883 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 884 || stackId == ASSISTANT_STACK_ID 885 || isDynamicStack(stackId); 886 } 887 } 888 889 /** 890 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 891 * specifies the position of the created docked stack at the top half of the screen if 892 * in portrait mode or at the left half of the screen if in landscape mode. 893 * @hide 894 */ 895 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 896 897 /** 898 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 899 * specifies the position of the created docked stack at the bottom half of the screen if 900 * in portrait mode or at the right half of the screen if in landscape mode. 901 * @hide 902 */ 903 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 904 905 /** 906 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 907 * that the resize doesn't need to preserve the window, and can be skipped if bounds 908 * is unchanged. This mode is used by window manager in most cases. 909 * @hide 910 */ 911 public static final int RESIZE_MODE_SYSTEM = 0; 912 913 /** 914 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 915 * that the resize should preserve the window if possible. 916 * @hide 917 */ 918 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 919 920 /** 921 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 922 * that the resize should be performed even if the bounds appears unchanged. 923 * @hide 924 */ 925 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 926 927 /** 928 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 929 * manager during a screen rotation. 930 * @hide 931 */ 932 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 933 934 /** 935 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 936 * resize is due to a drag action. 937 * @hide 938 */ 939 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 940 941 /** 942 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 943 * that the resize should preserve the window if possible, and should not be skipped 944 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 945 * is ending. 946 * @hide 947 */ 948 public static final int RESIZE_MODE_USER_FORCED = 949 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 950 951 /** @hide */ 952 public int getFrontActivityScreenCompatMode() { 953 try { 954 return getService().getFrontActivityScreenCompatMode(); 955 } catch (RemoteException e) { 956 throw e.rethrowFromSystemServer(); 957 } 958 } 959 960 /** @hide */ 961 public void setFrontActivityScreenCompatMode(int mode) { 962 try { 963 getService().setFrontActivityScreenCompatMode(mode); 964 } catch (RemoteException e) { 965 throw e.rethrowFromSystemServer(); 966 } 967 } 968 969 /** @hide */ 970 public int getPackageScreenCompatMode(String packageName) { 971 try { 972 return getService().getPackageScreenCompatMode(packageName); 973 } catch (RemoteException e) { 974 throw e.rethrowFromSystemServer(); 975 } 976 } 977 978 /** @hide */ 979 public void setPackageScreenCompatMode(String packageName, int mode) { 980 try { 981 getService().setPackageScreenCompatMode(packageName, mode); 982 } catch (RemoteException e) { 983 throw e.rethrowFromSystemServer(); 984 } 985 } 986 987 /** @hide */ 988 public boolean getPackageAskScreenCompat(String packageName) { 989 try { 990 return getService().getPackageAskScreenCompat(packageName); 991 } catch (RemoteException e) { 992 throw e.rethrowFromSystemServer(); 993 } 994 } 995 996 /** @hide */ 997 public void setPackageAskScreenCompat(String packageName, boolean ask) { 998 try { 999 getService().setPackageAskScreenCompat(packageName, ask); 1000 } catch (RemoteException e) { 1001 throw e.rethrowFromSystemServer(); 1002 } 1003 } 1004 1005 /** 1006 * Return the approximate per-application memory class of the current 1007 * device. This gives you an idea of how hard a memory limit you should 1008 * impose on your application to let the overall system work best. The 1009 * returned value is in megabytes; the baseline Android memory class is 1010 * 16 (which happens to be the Java heap limit of those devices); some 1011 * device with more memory may return 24 or even higher numbers. 1012 */ 1013 public int getMemoryClass() { 1014 return staticGetMemoryClass(); 1015 } 1016 1017 /** @hide */ 1018 static public int staticGetMemoryClass() { 1019 // Really brain dead right now -- just take this from the configured 1020 // vm heap size, and assume it is in megabytes and thus ends with "m". 1021 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1022 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1023 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1024 } 1025 return staticGetLargeMemoryClass(); 1026 } 1027 1028 /** 1029 * Return the approximate per-application memory class of the current 1030 * device when an application is running with a large heap. This is the 1031 * space available for memory-intensive applications; most applications 1032 * should not need this amount of memory, and should instead stay with the 1033 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1034 * This may be the same size as {@link #getMemoryClass()} on memory 1035 * constrained devices, or it may be significantly larger on devices with 1036 * a large amount of available RAM. 1037 * 1038 * <p>The is the size of the application's Dalvik heap if it has 1039 * specified <code>android:largeHeap="true"</code> in its manifest. 1040 */ 1041 public int getLargeMemoryClass() { 1042 return staticGetLargeMemoryClass(); 1043 } 1044 1045 /** @hide */ 1046 static public int staticGetLargeMemoryClass() { 1047 // Really brain dead right now -- just take this from the configured 1048 // vm heap size, and assume it is in megabytes and thus ends with "m". 1049 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1050 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1051 } 1052 1053 /** 1054 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1055 * is ultimately up to the device configuration, but currently it generally means 1056 * something in the class of a 512MB device with about a 800x480 or less screen. 1057 * This is mostly intended to be used by apps to determine whether they should turn 1058 * off certain features that require more RAM. 1059 */ 1060 public boolean isLowRamDevice() { 1061 return isLowRamDeviceStatic(); 1062 } 1063 1064 /** @hide */ 1065 public static boolean isLowRamDeviceStatic() { 1066 return RoSystemProperties.CONFIG_LOW_RAM || 1067 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1068 } 1069 1070 /** 1071 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1072 * small battery is ultimately up to the device configuration, but currently it generally means 1073 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1074 * to determine whether certain features should be altered to account for a drastically smaller 1075 * battery. 1076 * @hide 1077 */ 1078 public static boolean isSmallBatteryDevice() { 1079 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1080 } 1081 1082 /** 1083 * Used by persistent processes to determine if they are running on a 1084 * higher-end device so should be okay using hardware drawing acceleration 1085 * (which tends to consume a lot more RAM). 1086 * @hide 1087 */ 1088 static public boolean isHighEndGfx() { 1089 return !isLowRamDeviceStatic() && 1090 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1091 } 1092 1093 /** 1094 * Return the maximum number of recents entries that we will maintain and show. 1095 * @hide 1096 */ 1097 static public int getMaxRecentTasksStatic() { 1098 if (gMaxRecentTasks < 0) { 1099 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1100 } 1101 return gMaxRecentTasks; 1102 } 1103 1104 /** 1105 * Return the default limit on the number of recents that an app can make. 1106 * @hide 1107 */ 1108 static public int getDefaultAppRecentsLimitStatic() { 1109 return getMaxRecentTasksStatic() / 6; 1110 } 1111 1112 /** 1113 * Return the maximum limit on the number of recents that an app can make. 1114 * @hide 1115 */ 1116 static public int getMaxAppRecentsLimitStatic() { 1117 return getMaxRecentTasksStatic() / 2; 1118 } 1119 1120 /** 1121 * Returns true if the system supports at least one form of multi-window. 1122 * E.g. freeform, split-screen, picture-in-picture. 1123 * @hide 1124 */ 1125 static public boolean supportsMultiWindow() { 1126 return !isLowRamDeviceStatic() 1127 && Resources.getSystem().getBoolean( 1128 com.android.internal.R.bool.config_supportsMultiWindow); 1129 } 1130 1131 /** 1132 * Returns true if the system supports split screen multi-window. 1133 * @hide 1134 */ 1135 static public boolean supportsSplitScreenMultiWindow() { 1136 return supportsMultiWindow() 1137 && Resources.getSystem().getBoolean( 1138 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1139 } 1140 1141 /** 1142 * Return the maximum number of actions that will be displayed in the picture-in-picture UI when 1143 * the user interacts with the activity currently in picture-in-picture mode. 1144 */ 1145 public static int getMaxNumPictureInPictureActions() { 1146 return NUM_ALLOWED_PIP_ACTIONS; 1147 } 1148 1149 /** 1150 * Information you can set and retrieve about the current activity within the recent task list. 1151 */ 1152 public static class TaskDescription implements Parcelable { 1153 /** @hide */ 1154 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1155 private static final String ATTR_TASKDESCRIPTIONLABEL = 1156 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1157 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1158 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1159 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1160 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1161 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1162 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1163 1164 private String mLabel; 1165 private Bitmap mIcon; 1166 private String mIconFilename; 1167 private int mColorPrimary; 1168 private int mColorBackground; 1169 private int mStatusBarColor; 1170 private int mNavigationBarColor; 1171 1172 /** 1173 * Creates the TaskDescription to the specified values. 1174 * 1175 * @param label A label and description of the current state of this task. 1176 * @param icon An icon that represents the current state of this task. 1177 * @param colorPrimary A color to override the theme's primary color. This color must be 1178 * opaque. 1179 */ 1180 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1181 this(label, icon, null, colorPrimary, 0, 0, 0); 1182 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1183 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1184 } 1185 } 1186 1187 /** 1188 * Creates the TaskDescription to the specified values. 1189 * 1190 * @param label A label and description of the current state of this activity. 1191 * @param icon An icon that represents the current state of this activity. 1192 */ 1193 public TaskDescription(String label, Bitmap icon) { 1194 this(label, icon, null, 0, 0, 0, 0); 1195 } 1196 1197 /** 1198 * Creates the TaskDescription to the specified values. 1199 * 1200 * @param label A label and description of the current state of this activity. 1201 */ 1202 public TaskDescription(String label) { 1203 this(label, null, null, 0, 0, 0, 0); 1204 } 1205 1206 /** 1207 * Creates an empty TaskDescription. 1208 */ 1209 public TaskDescription() { 1210 this(null, null, null, 0, 0, 0, 0); 1211 } 1212 1213 /** @hide */ 1214 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1215 int colorBackground, int statusBarColor, int navigationBarColor) { 1216 mLabel = label; 1217 mIcon = icon; 1218 mIconFilename = iconFilename; 1219 mColorPrimary = colorPrimary; 1220 mColorBackground = colorBackground; 1221 mStatusBarColor = statusBarColor; 1222 mNavigationBarColor = navigationBarColor; 1223 } 1224 1225 /** 1226 * Creates a copy of another TaskDescription. 1227 */ 1228 public TaskDescription(TaskDescription td) { 1229 copyFrom(td); 1230 } 1231 1232 /** 1233 * Copies this the values from another TaskDescription. 1234 * @hide 1235 */ 1236 public void copyFrom(TaskDescription other) { 1237 mLabel = other.mLabel; 1238 mIcon = other.mIcon; 1239 mIconFilename = other.mIconFilename; 1240 mColorPrimary = other.mColorPrimary; 1241 mColorBackground = other.mColorBackground; 1242 mStatusBarColor = other.mStatusBarColor; 1243 mNavigationBarColor = other.mNavigationBarColor; 1244 } 1245 1246 /** 1247 * Copies this the values from another TaskDescription, but preserves the hidden fields 1248 * if they weren't set on {@code other} 1249 * @hide 1250 */ 1251 public void copyFromPreserveHiddenFields(TaskDescription other) { 1252 mLabel = other.mLabel; 1253 mIcon = other.mIcon; 1254 mIconFilename = other.mIconFilename; 1255 mColorPrimary = other.mColorPrimary; 1256 if (other.mColorBackground != 0) { 1257 mColorBackground = other.mColorBackground; 1258 } 1259 if (other.mStatusBarColor != 0) { 1260 mStatusBarColor = other.mStatusBarColor; 1261 } 1262 if (other.mNavigationBarColor != 0) { 1263 mNavigationBarColor = other.mNavigationBarColor; 1264 } 1265 } 1266 1267 private TaskDescription(Parcel source) { 1268 readFromParcel(source); 1269 } 1270 1271 /** 1272 * Sets the label for this task description. 1273 * @hide 1274 */ 1275 public void setLabel(String label) { 1276 mLabel = label; 1277 } 1278 1279 /** 1280 * Sets the primary color for this task description. 1281 * @hide 1282 */ 1283 public void setPrimaryColor(int primaryColor) { 1284 // Ensure that the given color is valid 1285 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1286 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1287 } 1288 mColorPrimary = primaryColor; 1289 } 1290 1291 /** 1292 * Sets the background color for this task description. 1293 * @hide 1294 */ 1295 public void setBackgroundColor(int backgroundColor) { 1296 // Ensure that the given color is valid 1297 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1298 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1299 } 1300 mColorBackground = backgroundColor; 1301 } 1302 1303 /** 1304 * @hide 1305 */ 1306 public void setStatusBarColor(int statusBarColor) { 1307 mStatusBarColor = statusBarColor; 1308 } 1309 1310 /** 1311 * @hide 1312 */ 1313 public void setNavigationBarColor(int navigationBarColor) { 1314 mNavigationBarColor = navigationBarColor; 1315 } 1316 1317 /** 1318 * Sets the icon for this task description. 1319 * @hide 1320 */ 1321 public void setIcon(Bitmap icon) { 1322 mIcon = icon; 1323 } 1324 1325 /** 1326 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1327 * bitmap. 1328 * @hide 1329 */ 1330 public void setIconFilename(String iconFilename) { 1331 mIconFilename = iconFilename; 1332 mIcon = null; 1333 } 1334 1335 /** 1336 * @return The label and description of the current state of this task. 1337 */ 1338 public String getLabel() { 1339 return mLabel; 1340 } 1341 1342 /** 1343 * @return The icon that represents the current state of this task. 1344 */ 1345 public Bitmap getIcon() { 1346 if (mIcon != null) { 1347 return mIcon; 1348 } 1349 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1350 } 1351 1352 /** @hide */ 1353 public String getIconFilename() { 1354 return mIconFilename; 1355 } 1356 1357 /** @hide */ 1358 public Bitmap getInMemoryIcon() { 1359 return mIcon; 1360 } 1361 1362 /** @hide */ 1363 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1364 if (iconFilename != null) { 1365 try { 1366 return getService().getTaskDescriptionIcon(iconFilename, 1367 userId); 1368 } catch (RemoteException e) { 1369 throw e.rethrowFromSystemServer(); 1370 } 1371 } 1372 return null; 1373 } 1374 1375 /** 1376 * @return The color override on the theme's primary color. 1377 */ 1378 public int getPrimaryColor() { 1379 return mColorPrimary; 1380 } 1381 1382 /** 1383 * @return The background color. 1384 * @hide 1385 */ 1386 public int getBackgroundColor() { 1387 return mColorBackground; 1388 } 1389 1390 /** 1391 * @hide 1392 */ 1393 public int getStatusBarColor() { 1394 return mStatusBarColor; 1395 } 1396 1397 /** 1398 * @hide 1399 */ 1400 public int getNavigationBarColor() { 1401 return mNavigationBarColor; 1402 } 1403 1404 /** @hide */ 1405 public void saveToXml(XmlSerializer out) throws IOException { 1406 if (mLabel != null) { 1407 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1408 } 1409 if (mColorPrimary != 0) { 1410 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1411 Integer.toHexString(mColorPrimary)); 1412 } 1413 if (mColorBackground != 0) { 1414 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1415 Integer.toHexString(mColorBackground)); 1416 } 1417 if (mIconFilename != null) { 1418 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1419 } 1420 } 1421 1422 /** @hide */ 1423 public void restoreFromXml(String attrName, String attrValue) { 1424 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1425 setLabel(attrValue); 1426 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1427 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1428 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1429 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1430 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1431 setIconFilename(attrValue); 1432 } 1433 } 1434 1435 @Override 1436 public int describeContents() { 1437 return 0; 1438 } 1439 1440 @Override 1441 public void writeToParcel(Parcel dest, int flags) { 1442 if (mLabel == null) { 1443 dest.writeInt(0); 1444 } else { 1445 dest.writeInt(1); 1446 dest.writeString(mLabel); 1447 } 1448 if (mIcon == null) { 1449 dest.writeInt(0); 1450 } else { 1451 dest.writeInt(1); 1452 mIcon.writeToParcel(dest, 0); 1453 } 1454 dest.writeInt(mColorPrimary); 1455 dest.writeInt(mColorBackground); 1456 dest.writeInt(mStatusBarColor); 1457 dest.writeInt(mNavigationBarColor); 1458 if (mIconFilename == null) { 1459 dest.writeInt(0); 1460 } else { 1461 dest.writeInt(1); 1462 dest.writeString(mIconFilename); 1463 } 1464 } 1465 1466 public void readFromParcel(Parcel source) { 1467 mLabel = source.readInt() > 0 ? source.readString() : null; 1468 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1469 mColorPrimary = source.readInt(); 1470 mColorBackground = source.readInt(); 1471 mStatusBarColor = source.readInt(); 1472 mNavigationBarColor = source.readInt(); 1473 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1474 } 1475 1476 public static final Creator<TaskDescription> CREATOR 1477 = new Creator<TaskDescription>() { 1478 public TaskDescription createFromParcel(Parcel source) { 1479 return new TaskDescription(source); 1480 } 1481 public TaskDescription[] newArray(int size) { 1482 return new TaskDescription[size]; 1483 } 1484 }; 1485 1486 @Override 1487 public String toString() { 1488 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1489 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1490 " colorBackground: " + mColorBackground + 1491 " statusBarColor: " + mColorBackground + 1492 " navigationBarColor: " + mNavigationBarColor; 1493 } 1494 } 1495 1496 /** 1497 * Information you can retrieve about tasks that the user has most recently 1498 * started or visited. 1499 */ 1500 public static class RecentTaskInfo implements Parcelable { 1501 /** 1502 * If this task is currently running, this is the identifier for it. 1503 * If it is not running, this will be -1. 1504 */ 1505 public int id; 1506 1507 /** 1508 * The true identifier of this task, valid even if it is not running. 1509 */ 1510 public int persistentId; 1511 1512 /** 1513 * The original Intent used to launch the task. You can use this 1514 * Intent to re-launch the task (if it is no longer running) or bring 1515 * the current task to the front. 1516 */ 1517 public Intent baseIntent; 1518 1519 /** 1520 * If this task was started from an alias, this is the actual 1521 * activity component that was initially started; the component of 1522 * the baseIntent in this case is the name of the actual activity 1523 * implementation that the alias referred to. Otherwise, this is null. 1524 */ 1525 public ComponentName origActivity; 1526 1527 /** 1528 * The actual activity component that started the task. 1529 * @hide 1530 */ 1531 @Nullable 1532 public ComponentName realActivity; 1533 1534 /** 1535 * Description of the task's last state. 1536 */ 1537 public CharSequence description; 1538 1539 /** 1540 * The id of the ActivityStack this Task was on most recently. 1541 * @hide 1542 */ 1543 public int stackId; 1544 1545 /** 1546 * The id of the user the task was running as. 1547 * @hide 1548 */ 1549 public int userId; 1550 1551 /** 1552 * The first time this task was active. 1553 * @hide 1554 */ 1555 public long firstActiveTime; 1556 1557 /** 1558 * The last time this task was active. 1559 * @hide 1560 */ 1561 public long lastActiveTime; 1562 1563 /** 1564 * The recent activity values for the highest activity in the stack to have set the values. 1565 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1566 */ 1567 public TaskDescription taskDescription; 1568 1569 /** 1570 * Task affiliation for grouping with other tasks. 1571 */ 1572 public int affiliatedTaskId; 1573 1574 /** 1575 * Task affiliation color of the source task with the affiliated task id. 1576 * 1577 * @hide 1578 */ 1579 public int affiliatedTaskColor; 1580 1581 /** 1582 * The component launched as the first activity in the task. 1583 * This can be considered the "application" of this task. 1584 */ 1585 public ComponentName baseActivity; 1586 1587 /** 1588 * The activity component at the top of the history stack of the task. 1589 * This is what the user is currently doing. 1590 */ 1591 public ComponentName topActivity; 1592 1593 /** 1594 * Number of activities in this task. 1595 */ 1596 public int numActivities; 1597 1598 /** 1599 * The bounds of the task. 1600 * @hide 1601 */ 1602 public Rect bounds; 1603 1604 /** 1605 * True if the task can go in the docked stack. 1606 * @hide 1607 */ 1608 public boolean supportsSplitScreenMultiWindow; 1609 1610 /** 1611 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1612 * @hide 1613 */ 1614 public int resizeMode; 1615 1616 public RecentTaskInfo() { 1617 } 1618 1619 @Override 1620 public int describeContents() { 1621 return 0; 1622 } 1623 1624 @Override 1625 public void writeToParcel(Parcel dest, int flags) { 1626 dest.writeInt(id); 1627 dest.writeInt(persistentId); 1628 if (baseIntent != null) { 1629 dest.writeInt(1); 1630 baseIntent.writeToParcel(dest, 0); 1631 } else { 1632 dest.writeInt(0); 1633 } 1634 ComponentName.writeToParcel(origActivity, dest); 1635 ComponentName.writeToParcel(realActivity, dest); 1636 TextUtils.writeToParcel(description, dest, 1637 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1638 if (taskDescription != null) { 1639 dest.writeInt(1); 1640 taskDescription.writeToParcel(dest, 0); 1641 } else { 1642 dest.writeInt(0); 1643 } 1644 dest.writeInt(stackId); 1645 dest.writeInt(userId); 1646 dest.writeLong(firstActiveTime); 1647 dest.writeLong(lastActiveTime); 1648 dest.writeInt(affiliatedTaskId); 1649 dest.writeInt(affiliatedTaskColor); 1650 ComponentName.writeToParcel(baseActivity, dest); 1651 ComponentName.writeToParcel(topActivity, dest); 1652 dest.writeInt(numActivities); 1653 if (bounds != null) { 1654 dest.writeInt(1); 1655 bounds.writeToParcel(dest, 0); 1656 } else { 1657 dest.writeInt(0); 1658 } 1659 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1660 dest.writeInt(resizeMode); 1661 } 1662 1663 public void readFromParcel(Parcel source) { 1664 id = source.readInt(); 1665 persistentId = source.readInt(); 1666 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1667 origActivity = ComponentName.readFromParcel(source); 1668 realActivity = ComponentName.readFromParcel(source); 1669 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1670 taskDescription = source.readInt() > 0 ? 1671 TaskDescription.CREATOR.createFromParcel(source) : null; 1672 stackId = source.readInt(); 1673 userId = source.readInt(); 1674 firstActiveTime = source.readLong(); 1675 lastActiveTime = source.readLong(); 1676 affiliatedTaskId = source.readInt(); 1677 affiliatedTaskColor = source.readInt(); 1678 baseActivity = ComponentName.readFromParcel(source); 1679 topActivity = ComponentName.readFromParcel(source); 1680 numActivities = source.readInt(); 1681 bounds = source.readInt() > 0 ? 1682 Rect.CREATOR.createFromParcel(source) : null; 1683 supportsSplitScreenMultiWindow = source.readInt() == 1; 1684 resizeMode = source.readInt(); 1685 } 1686 1687 public static final Creator<RecentTaskInfo> CREATOR 1688 = new Creator<RecentTaskInfo>() { 1689 public RecentTaskInfo createFromParcel(Parcel source) { 1690 return new RecentTaskInfo(source); 1691 } 1692 public RecentTaskInfo[] newArray(int size) { 1693 return new RecentTaskInfo[size]; 1694 } 1695 }; 1696 1697 private RecentTaskInfo(Parcel source) { 1698 readFromParcel(source); 1699 } 1700 } 1701 1702 /** 1703 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1704 * that have set their 1705 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1706 */ 1707 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1708 1709 /** 1710 * Provides a list that does not contain any 1711 * recent tasks that currently are not available to the user. 1712 */ 1713 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1714 1715 /** 1716 * Provides a list that contains recent tasks for all 1717 * profiles of a user. 1718 * @hide 1719 */ 1720 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1721 1722 /** 1723 * Ignores all tasks that are on the home stack. 1724 * @hide 1725 */ 1726 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1727 1728 /** 1729 * Ignores the top task in the docked stack. 1730 * @hide 1731 */ 1732 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1733 1734 /** 1735 * Ignores all tasks that are on the pinned stack. 1736 * @hide 1737 */ 1738 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1739 1740 /** 1741 * <p></p>Return a list of the tasks that the user has recently launched, with 1742 * the most recent being first and older ones after in order. 1743 * 1744 * <p><b>Note: this method is only intended for debugging and presenting 1745 * task management user interfaces</b>. This should never be used for 1746 * core logic in an application, such as deciding between different 1747 * behaviors based on the information found here. Such uses are 1748 * <em>not</em> supported, and will likely break in the future. For 1749 * example, if multiple applications can be actively running at the 1750 * same time, assumptions made about the meaning of the data here for 1751 * purposes of control flow will be incorrect.</p> 1752 * 1753 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1754 * no longer available to third party applications: the introduction of 1755 * document-centric recents means 1756 * it can leak personal information to the caller. For backwards compatibility, 1757 * it will still return a small subset of its data: at least the caller's 1758 * own tasks (though see {@link #getAppTasks()} for the correct supported 1759 * way to retrieve that information), and possibly some other tasks 1760 * such as home that are known to not be sensitive. 1761 * 1762 * @param maxNum The maximum number of entries to return in the list. The 1763 * actual number returned may be smaller, depending on how many tasks the 1764 * user has started and the maximum number the system can remember. 1765 * @param flags Information about what to return. May be any combination 1766 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1767 * 1768 * @return Returns a list of RecentTaskInfo records describing each of 1769 * the recent tasks. 1770 */ 1771 @Deprecated 1772 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1773 throws SecurityException { 1774 try { 1775 return getService().getRecentTasks(maxNum, 1776 flags, UserHandle.myUserId()).getList(); 1777 } catch (RemoteException e) { 1778 throw e.rethrowFromSystemServer(); 1779 } 1780 } 1781 1782 /** 1783 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1784 * specific user. It requires holding 1785 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1786 * @param maxNum The maximum number of entries to return in the list. The 1787 * actual number returned may be smaller, depending on how many tasks the 1788 * user has started and the maximum number the system can remember. 1789 * @param flags Information about what to return. May be any combination 1790 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1791 * 1792 * @return Returns a list of RecentTaskInfo records describing each of 1793 * the recent tasks. Most recently activated tasks go first. 1794 * 1795 * @hide 1796 */ 1797 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1798 throws SecurityException { 1799 try { 1800 return getService().getRecentTasks(maxNum, 1801 flags, userId).getList(); 1802 } catch (RemoteException e) { 1803 throw e.rethrowFromSystemServer(); 1804 } 1805 } 1806 1807 /** 1808 * Information you can retrieve about a particular task that is currently 1809 * "running" in the system. Note that a running task does not mean the 1810 * given task actually has a process it is actively running in; it simply 1811 * means that the user has gone to it and never closed it, but currently 1812 * the system may have killed its process and is only holding on to its 1813 * last state in order to restart it when the user returns. 1814 */ 1815 public static class RunningTaskInfo implements Parcelable { 1816 /** 1817 * A unique identifier for this task. 1818 */ 1819 public int id; 1820 1821 /** 1822 * The stack that currently contains this task. 1823 * @hide 1824 */ 1825 public int stackId; 1826 1827 /** 1828 * The component launched as the first activity in the task. This can 1829 * be considered the "application" of this task. 1830 */ 1831 public ComponentName baseActivity; 1832 1833 /** 1834 * The activity component at the top of the history stack of the task. 1835 * This is what the user is currently doing. 1836 */ 1837 public ComponentName topActivity; 1838 1839 /** 1840 * Thumbnail representation of the task's current state. Currently 1841 * always null. 1842 */ 1843 public Bitmap thumbnail; 1844 1845 /** 1846 * Description of the task's current state. 1847 */ 1848 public CharSequence description; 1849 1850 /** 1851 * Number of activities in this task. 1852 */ 1853 public int numActivities; 1854 1855 /** 1856 * Number of activities that are currently running (not stopped 1857 * and persisted) in this task. 1858 */ 1859 public int numRunning; 1860 1861 /** 1862 * Last time task was run. For sorting. 1863 * @hide 1864 */ 1865 public long lastActiveTime; 1866 1867 /** 1868 * True if the task can go in the docked stack. 1869 * @hide 1870 */ 1871 public boolean supportsSplitScreenMultiWindow; 1872 1873 /** 1874 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1875 * @hide 1876 */ 1877 public int resizeMode; 1878 1879 public RunningTaskInfo() { 1880 } 1881 1882 public int describeContents() { 1883 return 0; 1884 } 1885 1886 public void writeToParcel(Parcel dest, int flags) { 1887 dest.writeInt(id); 1888 dest.writeInt(stackId); 1889 ComponentName.writeToParcel(baseActivity, dest); 1890 ComponentName.writeToParcel(topActivity, dest); 1891 if (thumbnail != null) { 1892 dest.writeInt(1); 1893 thumbnail.writeToParcel(dest, 0); 1894 } else { 1895 dest.writeInt(0); 1896 } 1897 TextUtils.writeToParcel(description, dest, 1898 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1899 dest.writeInt(numActivities); 1900 dest.writeInt(numRunning); 1901 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1902 dest.writeInt(resizeMode); 1903 } 1904 1905 public void readFromParcel(Parcel source) { 1906 id = source.readInt(); 1907 stackId = source.readInt(); 1908 baseActivity = ComponentName.readFromParcel(source); 1909 topActivity = ComponentName.readFromParcel(source); 1910 if (source.readInt() != 0) { 1911 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1912 } else { 1913 thumbnail = null; 1914 } 1915 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1916 numActivities = source.readInt(); 1917 numRunning = source.readInt(); 1918 supportsSplitScreenMultiWindow = source.readInt() != 0; 1919 resizeMode = source.readInt(); 1920 } 1921 1922 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1923 public RunningTaskInfo createFromParcel(Parcel source) { 1924 return new RunningTaskInfo(source); 1925 } 1926 public RunningTaskInfo[] newArray(int size) { 1927 return new RunningTaskInfo[size]; 1928 } 1929 }; 1930 1931 private RunningTaskInfo(Parcel source) { 1932 readFromParcel(source); 1933 } 1934 } 1935 1936 /** 1937 * Get the list of tasks associated with the calling application. 1938 * 1939 * @return The list of tasks associated with the application making this call. 1940 * @throws SecurityException 1941 */ 1942 public List<ActivityManager.AppTask> getAppTasks() { 1943 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1944 List<IBinder> appTasks; 1945 try { 1946 appTasks = getService().getAppTasks(mContext.getPackageName()); 1947 } catch (RemoteException e) { 1948 throw e.rethrowFromSystemServer(); 1949 } 1950 int numAppTasks = appTasks.size(); 1951 for (int i = 0; i < numAppTasks; i++) { 1952 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1953 } 1954 return tasks; 1955 } 1956 1957 /** 1958 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1959 * with {@link #addAppTask}. 1960 */ 1961 public Size getAppTaskThumbnailSize() { 1962 synchronized (this) { 1963 ensureAppTaskThumbnailSizeLocked(); 1964 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1965 } 1966 } 1967 1968 private void ensureAppTaskThumbnailSizeLocked() { 1969 if (mAppTaskThumbnailSize == null) { 1970 try { 1971 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1972 } catch (RemoteException e) { 1973 throw e.rethrowFromSystemServer(); 1974 } 1975 } 1976 } 1977 1978 /** 1979 * Add a new {@link AppTask} for the calling application. This will create a new 1980 * recents entry that is added to the <b>end</b> of all existing recents. 1981 * 1982 * @param activity The activity that is adding the entry. This is used to help determine 1983 * the context that the new recents entry will be in. 1984 * @param intent The Intent that describes the recents entry. This is the same Intent that 1985 * you would have used to launch the activity for it. In generally you will want to set 1986 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1987 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1988 * entry will exist without an activity, so it doesn't make sense to not retain it when 1989 * its activity disappears. The given Intent here also must have an explicit ComponentName 1990 * set on it. 1991 * @param description Optional additional description information. 1992 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1993 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1994 * recreated in your process, probably in a way you don't like, before the recents entry 1995 * is added. 1996 * 1997 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1998 * most likely cause of failure is that there is no more room for more tasks for your app. 1999 */ 2000 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 2001 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 2002 Point size; 2003 synchronized (this) { 2004 ensureAppTaskThumbnailSizeLocked(); 2005 size = mAppTaskThumbnailSize; 2006 } 2007 final int tw = thumbnail.getWidth(); 2008 final int th = thumbnail.getHeight(); 2009 if (tw != size.x || th != size.y) { 2010 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2011 2012 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2013 float scale; 2014 float dx = 0, dy = 0; 2015 if (tw * size.x > size.y * th) { 2016 scale = (float) size.x / (float) th; 2017 dx = (size.y - tw * scale) * 0.5f; 2018 } else { 2019 scale = (float) size.y / (float) tw; 2020 dy = (size.x - th * scale) * 0.5f; 2021 } 2022 Matrix matrix = new Matrix(); 2023 matrix.setScale(scale, scale); 2024 matrix.postTranslate((int) (dx + 0.5f), 0); 2025 2026 Canvas canvas = new Canvas(bm); 2027 canvas.drawBitmap(thumbnail, matrix, null); 2028 canvas.setBitmap(null); 2029 2030 thumbnail = bm; 2031 } 2032 if (description == null) { 2033 description = new TaskDescription(); 2034 } 2035 try { 2036 return getService().addAppTask(activity.getActivityToken(), 2037 intent, description, thumbnail); 2038 } catch (RemoteException e) { 2039 throw e.rethrowFromSystemServer(); 2040 } 2041 } 2042 2043 /** 2044 * Return a list of the tasks that are currently running, with 2045 * the most recent being first and older ones after in order. Note that 2046 * "running" does not mean any of the task's code is currently loaded or 2047 * activity -- the task may have been frozen by the system, so that it 2048 * can be restarted in its previous state when next brought to the 2049 * foreground. 2050 * 2051 * <p><b>Note: this method is only intended for debugging and presenting 2052 * task management user interfaces</b>. This should never be used for 2053 * core logic in an application, such as deciding between different 2054 * behaviors based on the information found here. Such uses are 2055 * <em>not</em> supported, and will likely break in the future. For 2056 * example, if multiple applications can be actively running at the 2057 * same time, assumptions made about the meaning of the data here for 2058 * purposes of control flow will be incorrect.</p> 2059 * 2060 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2061 * is no longer available to third party 2062 * applications: the introduction of document-centric recents means 2063 * it can leak person information to the caller. For backwards compatibility, 2064 * it will still retu rn a small subset of its data: at least the caller's 2065 * own tasks, and possibly some other tasks 2066 * such as home that are known to not be sensitive. 2067 * 2068 * @param maxNum The maximum number of entries to return in the list. The 2069 * actual number returned may be smaller, depending on how many tasks the 2070 * user has started. 2071 * 2072 * @return Returns a list of RunningTaskInfo records describing each of 2073 * the running tasks. 2074 */ 2075 @Deprecated 2076 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2077 throws SecurityException { 2078 try { 2079 return getService().getTasks(maxNum, 0); 2080 } catch (RemoteException e) { 2081 throw e.rethrowFromSystemServer(); 2082 } 2083 } 2084 2085 /** 2086 * Completely remove the given task. 2087 * 2088 * @param taskId Identifier of the task to be removed. 2089 * @return Returns true if the given task was found and removed. 2090 * 2091 * @hide 2092 */ 2093 public boolean removeTask(int taskId) throws SecurityException { 2094 try { 2095 return getService().removeTask(taskId); 2096 } catch (RemoteException e) { 2097 throw e.rethrowFromSystemServer(); 2098 } 2099 } 2100 2101 /** 2102 * Metadata related to the {@link TaskThumbnail}. 2103 * 2104 * @hide 2105 */ 2106 public static class TaskThumbnailInfo implements Parcelable { 2107 /** @hide */ 2108 public static final String ATTR_TASK_THUMBNAILINFO_PREFIX = "task_thumbnailinfo_"; 2109 private static final String ATTR_TASK_WIDTH = 2110 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_width"; 2111 private static final String ATTR_TASK_HEIGHT = 2112 ATTR_TASK_THUMBNAILINFO_PREFIX + "task_height"; 2113 private static final String ATTR_SCREEN_ORIENTATION = 2114 ATTR_TASK_THUMBNAILINFO_PREFIX + "screen_orientation"; 2115 2116 public int taskWidth; 2117 public int taskHeight; 2118 public int screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2119 2120 public TaskThumbnailInfo() { 2121 // Do nothing 2122 } 2123 2124 private TaskThumbnailInfo(Parcel source) { 2125 readFromParcel(source); 2126 } 2127 2128 /** 2129 * Resets this info state to the initial state. 2130 * @hide 2131 */ 2132 public void reset() { 2133 taskWidth = 0; 2134 taskHeight = 0; 2135 screenOrientation = Configuration.ORIENTATION_UNDEFINED; 2136 } 2137 2138 /** 2139 * Copies from another ThumbnailInfo. 2140 */ 2141 public void copyFrom(TaskThumbnailInfo o) { 2142 taskWidth = o.taskWidth; 2143 taskHeight = o.taskHeight; 2144 screenOrientation = o.screenOrientation; 2145 } 2146 2147 /** @hide */ 2148 public void saveToXml(XmlSerializer out) throws IOException { 2149 out.attribute(null, ATTR_TASK_WIDTH, Integer.toString(taskWidth)); 2150 out.attribute(null, ATTR_TASK_HEIGHT, Integer.toString(taskHeight)); 2151 out.attribute(null, ATTR_SCREEN_ORIENTATION, Integer.toString(screenOrientation)); 2152 } 2153 2154 /** @hide */ 2155 public void restoreFromXml(String attrName, String attrValue) { 2156 if (ATTR_TASK_WIDTH.equals(attrName)) { 2157 taskWidth = Integer.parseInt(attrValue); 2158 } else if (ATTR_TASK_HEIGHT.equals(attrName)) { 2159 taskHeight = Integer.parseInt(attrValue); 2160 } else if (ATTR_SCREEN_ORIENTATION.equals(attrName)) { 2161 screenOrientation = Integer.parseInt(attrValue); 2162 } 2163 } 2164 2165 public int describeContents() { 2166 return 0; 2167 } 2168 2169 public void writeToParcel(Parcel dest, int flags) { 2170 dest.writeInt(taskWidth); 2171 dest.writeInt(taskHeight); 2172 dest.writeInt(screenOrientation); 2173 } 2174 2175 public void readFromParcel(Parcel source) { 2176 taskWidth = source.readInt(); 2177 taskHeight = source.readInt(); 2178 screenOrientation = source.readInt(); 2179 } 2180 2181 public static final Creator<TaskThumbnailInfo> CREATOR = new Creator<TaskThumbnailInfo>() { 2182 public TaskThumbnailInfo createFromParcel(Parcel source) { 2183 return new TaskThumbnailInfo(source); 2184 } 2185 public TaskThumbnailInfo[] newArray(int size) { 2186 return new TaskThumbnailInfo[size]; 2187 } 2188 }; 2189 } 2190 2191 /** @hide */ 2192 public static class TaskThumbnail implements Parcelable { 2193 public Bitmap mainThumbnail; 2194 public ParcelFileDescriptor thumbnailFileDescriptor; 2195 public TaskThumbnailInfo thumbnailInfo; 2196 2197 public TaskThumbnail() { 2198 } 2199 2200 private TaskThumbnail(Parcel source) { 2201 readFromParcel(source); 2202 } 2203 2204 public int describeContents() { 2205 if (thumbnailFileDescriptor != null) { 2206 return thumbnailFileDescriptor.describeContents(); 2207 } 2208 return 0; 2209 } 2210 2211 public void writeToParcel(Parcel dest, int flags) { 2212 if (mainThumbnail != null) { 2213 dest.writeInt(1); 2214 mainThumbnail.writeToParcel(dest, flags); 2215 } else { 2216 dest.writeInt(0); 2217 } 2218 if (thumbnailFileDescriptor != null) { 2219 dest.writeInt(1); 2220 thumbnailFileDescriptor.writeToParcel(dest, flags); 2221 } else { 2222 dest.writeInt(0); 2223 } 2224 if (thumbnailInfo != null) { 2225 dest.writeInt(1); 2226 thumbnailInfo.writeToParcel(dest, flags); 2227 } else { 2228 dest.writeInt(0); 2229 } 2230 } 2231 2232 public void readFromParcel(Parcel source) { 2233 if (source.readInt() != 0) { 2234 mainThumbnail = Bitmap.CREATOR.createFromParcel(source); 2235 } else { 2236 mainThumbnail = null; 2237 } 2238 if (source.readInt() != 0) { 2239 thumbnailFileDescriptor = ParcelFileDescriptor.CREATOR.createFromParcel(source); 2240 } else { 2241 thumbnailFileDescriptor = null; 2242 } 2243 if (source.readInt() != 0) { 2244 thumbnailInfo = TaskThumbnailInfo.CREATOR.createFromParcel(source); 2245 } else { 2246 thumbnailInfo = null; 2247 } 2248 } 2249 2250 public static final Creator<TaskThumbnail> CREATOR = new Creator<TaskThumbnail>() { 2251 public TaskThumbnail createFromParcel(Parcel source) { 2252 return new TaskThumbnail(source); 2253 } 2254 public TaskThumbnail[] newArray(int size) { 2255 return new TaskThumbnail[size]; 2256 } 2257 }; 2258 } 2259 2260 /** 2261 * Represents a task snapshot. 2262 * @hide 2263 */ 2264 public static class TaskSnapshot implements Parcelable { 2265 2266 private final GraphicBuffer mSnapshot; 2267 private final int mOrientation; 2268 private final Rect mContentInsets; 2269 private final boolean mReducedResolution; 2270 private final float mScale; 2271 2272 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2273 boolean reducedResolution, float scale) { 2274 mSnapshot = snapshot; 2275 mOrientation = orientation; 2276 mContentInsets = new Rect(contentInsets); 2277 mReducedResolution = reducedResolution; 2278 mScale = scale; 2279 } 2280 2281 private TaskSnapshot(Parcel source) { 2282 mSnapshot = source.readParcelable(null /* classLoader */); 2283 mOrientation = source.readInt(); 2284 mContentInsets = source.readParcelable(null /* classLoader */); 2285 mReducedResolution = source.readBoolean(); 2286 mScale = source.readFloat(); 2287 } 2288 2289 /** 2290 * @return The graphic buffer representing the screenshot. 2291 */ 2292 public GraphicBuffer getSnapshot() { 2293 return mSnapshot; 2294 } 2295 2296 /** 2297 * @return The screen orientation the screenshot was taken in. 2298 */ 2299 public int getOrientation() { 2300 return mOrientation; 2301 } 2302 2303 /** 2304 * @return The system/content insets on the snapshot. These can be clipped off in order to 2305 * remove any areas behind system bars in the snapshot. 2306 */ 2307 public Rect getContentInsets() { 2308 return mContentInsets; 2309 } 2310 2311 /** 2312 * @return Whether this snapshot is a down-sampled version of the full resolution. 2313 */ 2314 public boolean isReducedResolution() { 2315 return mReducedResolution; 2316 } 2317 2318 /** 2319 * @return The scale this snapshot was taken in. 2320 */ 2321 public float getScale() { 2322 return mScale; 2323 } 2324 2325 @Override 2326 public int describeContents() { 2327 return 0; 2328 } 2329 2330 @Override 2331 public void writeToParcel(Parcel dest, int flags) { 2332 dest.writeParcelable(mSnapshot, 0); 2333 dest.writeInt(mOrientation); 2334 dest.writeParcelable(mContentInsets, 0); 2335 dest.writeBoolean(mReducedResolution); 2336 dest.writeFloat(mScale); 2337 } 2338 2339 @Override 2340 public String toString() { 2341 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2342 + " mContentInsets=" + mContentInsets.toShortString() 2343 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2344 } 2345 2346 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2347 public TaskSnapshot createFromParcel(Parcel source) { 2348 return new TaskSnapshot(source); 2349 } 2350 public TaskSnapshot[] newArray(int size) { 2351 return new TaskSnapshot[size]; 2352 } 2353 }; 2354 } 2355 2356 /** @hide */ 2357 public TaskThumbnail getTaskThumbnail(int id) throws SecurityException { 2358 try { 2359 return getService().getTaskThumbnail(id); 2360 } catch (RemoteException e) { 2361 throw e.rethrowFromSystemServer(); 2362 } 2363 } 2364 2365 /** 2366 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2367 * activity along with the task, so it is positioned immediately behind 2368 * the task. 2369 */ 2370 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2371 2372 /** 2373 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2374 * user-instigated action, so the current activity will not receive a 2375 * hint that the user is leaving. 2376 */ 2377 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2378 2379 /** 2380 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2381 * with a null options argument. 2382 * 2383 * @param taskId The identifier of the task to be moved, as found in 2384 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2385 * @param flags Additional operational flags, 0 or more of 2386 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2387 */ 2388 public void moveTaskToFront(int taskId, int flags) { 2389 moveTaskToFront(taskId, flags, null); 2390 } 2391 2392 /** 2393 * Ask that the task associated with a given task ID be moved to the 2394 * front of the stack, so it is now visible to the user. Requires that 2395 * the caller hold permission {@link android.Manifest.permission#REORDER_TASKS} 2396 * or a SecurityException will be thrown. 2397 * 2398 * @param taskId The identifier of the task to be moved, as found in 2399 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2400 * @param flags Additional operational flags, 0 or more of 2401 * {@link #MOVE_TASK_WITH_HOME}, {@link #MOVE_TASK_NO_USER_ACTION}. 2402 * @param options Additional options for the operation, either null or 2403 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2404 * Context.startActivity(Intent, Bundle)}. 2405 */ 2406 public void moveTaskToFront(int taskId, int flags, Bundle options) { 2407 try { 2408 getService().moveTaskToFront(taskId, flags, options); 2409 } catch (RemoteException e) { 2410 throw e.rethrowFromSystemServer(); 2411 } 2412 } 2413 2414 /** 2415 * Information you can retrieve about a particular Service that is 2416 * currently running in the system. 2417 */ 2418 public static class RunningServiceInfo implements Parcelable { 2419 /** 2420 * The service component. 2421 */ 2422 public ComponentName service; 2423 2424 /** 2425 * If non-zero, this is the process the service is running in. 2426 */ 2427 public int pid; 2428 2429 /** 2430 * The UID that owns this service. 2431 */ 2432 public int uid; 2433 2434 /** 2435 * The name of the process this service runs in. 2436 */ 2437 public String process; 2438 2439 /** 2440 * Set to true if the service has asked to run as a foreground process. 2441 */ 2442 public boolean foreground; 2443 2444 /** 2445 * The time when the service was first made active, either by someone 2446 * starting or binding to it. This 2447 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2448 */ 2449 public long activeSince; 2450 2451 /** 2452 * Set to true if this service has been explicitly started. 2453 */ 2454 public boolean started; 2455 2456 /** 2457 * Number of clients connected to the service. 2458 */ 2459 public int clientCount; 2460 2461 /** 2462 * Number of times the service's process has crashed while the service 2463 * is running. 2464 */ 2465 public int crashCount; 2466 2467 /** 2468 * The time when there was last activity in the service (either 2469 * explicit requests to start it or clients binding to it). This 2470 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2471 */ 2472 public long lastActivityTime; 2473 2474 /** 2475 * If non-zero, this service is not currently running, but scheduled to 2476 * restart at the given time. 2477 */ 2478 public long restarting; 2479 2480 /** 2481 * Bit for {@link #flags}: set if this service has been 2482 * explicitly started. 2483 */ 2484 public static final int FLAG_STARTED = 1<<0; 2485 2486 /** 2487 * Bit for {@link #flags}: set if the service has asked to 2488 * run as a foreground process. 2489 */ 2490 public static final int FLAG_FOREGROUND = 1<<1; 2491 2492 /** 2493 * Bit for {@link #flags}: set if the service is running in a 2494 * core system process. 2495 */ 2496 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2497 2498 /** 2499 * Bit for {@link #flags}: set if the service is running in a 2500 * persistent process. 2501 */ 2502 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2503 2504 /** 2505 * Running flags. 2506 */ 2507 public int flags; 2508 2509 /** 2510 * For special services that are bound to by system code, this is 2511 * the package that holds the binding. 2512 */ 2513 public String clientPackage; 2514 2515 /** 2516 * For special services that are bound to by system code, this is 2517 * a string resource providing a user-visible label for who the 2518 * client is. 2519 */ 2520 public int clientLabel; 2521 2522 public RunningServiceInfo() { 2523 } 2524 2525 public int describeContents() { 2526 return 0; 2527 } 2528 2529 public void writeToParcel(Parcel dest, int flags) { 2530 ComponentName.writeToParcel(service, dest); 2531 dest.writeInt(pid); 2532 dest.writeInt(uid); 2533 dest.writeString(process); 2534 dest.writeInt(foreground ? 1 : 0); 2535 dest.writeLong(activeSince); 2536 dest.writeInt(started ? 1 : 0); 2537 dest.writeInt(clientCount); 2538 dest.writeInt(crashCount); 2539 dest.writeLong(lastActivityTime); 2540 dest.writeLong(restarting); 2541 dest.writeInt(this.flags); 2542 dest.writeString(clientPackage); 2543 dest.writeInt(clientLabel); 2544 } 2545 2546 public void readFromParcel(Parcel source) { 2547 service = ComponentName.readFromParcel(source); 2548 pid = source.readInt(); 2549 uid = source.readInt(); 2550 process = source.readString(); 2551 foreground = source.readInt() != 0; 2552 activeSince = source.readLong(); 2553 started = source.readInt() != 0; 2554 clientCount = source.readInt(); 2555 crashCount = source.readInt(); 2556 lastActivityTime = source.readLong(); 2557 restarting = source.readLong(); 2558 flags = source.readInt(); 2559 clientPackage = source.readString(); 2560 clientLabel = source.readInt(); 2561 } 2562 2563 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2564 public RunningServiceInfo createFromParcel(Parcel source) { 2565 return new RunningServiceInfo(source); 2566 } 2567 public RunningServiceInfo[] newArray(int size) { 2568 return new RunningServiceInfo[size]; 2569 } 2570 }; 2571 2572 private RunningServiceInfo(Parcel source) { 2573 readFromParcel(source); 2574 } 2575 } 2576 2577 /** 2578 * Return a list of the services that are currently running. 2579 * 2580 * <p><b>Note: this method is only intended for debugging or implementing 2581 * service management type user interfaces.</b></p> 2582 * 2583 * @param maxNum The maximum number of entries to return in the list. The 2584 * actual number returned may be smaller, depending on how many services 2585 * are running. 2586 * 2587 * @return Returns a list of RunningServiceInfo records describing each of 2588 * the running tasks. 2589 */ 2590 public List<RunningServiceInfo> getRunningServices(int maxNum) 2591 throws SecurityException { 2592 try { 2593 return getService() 2594 .getServices(maxNum, 0); 2595 } catch (RemoteException e) { 2596 throw e.rethrowFromSystemServer(); 2597 } 2598 } 2599 2600 /** 2601 * Returns a PendingIntent you can start to show a control panel for the 2602 * given running service. If the service does not have a control panel, 2603 * null is returned. 2604 */ 2605 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2606 throws SecurityException { 2607 try { 2608 return getService() 2609 .getRunningServiceControlPanel(service); 2610 } catch (RemoteException e) { 2611 throw e.rethrowFromSystemServer(); 2612 } 2613 } 2614 2615 /** 2616 * Information you can retrieve about the available memory through 2617 * {@link ActivityManager#getMemoryInfo}. 2618 */ 2619 public static class MemoryInfo implements Parcelable { 2620 /** 2621 * The available memory on the system. This number should not 2622 * be considered absolute: due to the nature of the kernel, a significant 2623 * portion of this memory is actually in use and needed for the overall 2624 * system to run well. 2625 */ 2626 public long availMem; 2627 2628 /** 2629 * The total memory accessible by the kernel. This is basically the 2630 * RAM size of the device, not including below-kernel fixed allocations 2631 * like DMA buffers, RAM for the baseband CPU, etc. 2632 */ 2633 public long totalMem; 2634 2635 /** 2636 * The threshold of {@link #availMem} at which we consider memory to be 2637 * low and start killing background services and other non-extraneous 2638 * processes. 2639 */ 2640 public long threshold; 2641 2642 /** 2643 * Set to true if the system considers itself to currently be in a low 2644 * memory situation. 2645 */ 2646 public boolean lowMemory; 2647 2648 /** @hide */ 2649 public long hiddenAppThreshold; 2650 /** @hide */ 2651 public long secondaryServerThreshold; 2652 /** @hide */ 2653 public long visibleAppThreshold; 2654 /** @hide */ 2655 public long foregroundAppThreshold; 2656 2657 public MemoryInfo() { 2658 } 2659 2660 public int describeContents() { 2661 return 0; 2662 } 2663 2664 public void writeToParcel(Parcel dest, int flags) { 2665 dest.writeLong(availMem); 2666 dest.writeLong(totalMem); 2667 dest.writeLong(threshold); 2668 dest.writeInt(lowMemory ? 1 : 0); 2669 dest.writeLong(hiddenAppThreshold); 2670 dest.writeLong(secondaryServerThreshold); 2671 dest.writeLong(visibleAppThreshold); 2672 dest.writeLong(foregroundAppThreshold); 2673 } 2674 2675 public void readFromParcel(Parcel source) { 2676 availMem = source.readLong(); 2677 totalMem = source.readLong(); 2678 threshold = source.readLong(); 2679 lowMemory = source.readInt() != 0; 2680 hiddenAppThreshold = source.readLong(); 2681 secondaryServerThreshold = source.readLong(); 2682 visibleAppThreshold = source.readLong(); 2683 foregroundAppThreshold = source.readLong(); 2684 } 2685 2686 public static final Creator<MemoryInfo> CREATOR 2687 = new Creator<MemoryInfo>() { 2688 public MemoryInfo createFromParcel(Parcel source) { 2689 return new MemoryInfo(source); 2690 } 2691 public MemoryInfo[] newArray(int size) { 2692 return new MemoryInfo[size]; 2693 } 2694 }; 2695 2696 private MemoryInfo(Parcel source) { 2697 readFromParcel(source); 2698 } 2699 } 2700 2701 /** 2702 * Return general information about the memory state of the system. This 2703 * can be used to help decide how to manage your own memory, though note 2704 * that polling is not recommended and 2705 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2706 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2707 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2708 * level of your process as needed, which gives a better hint for how to 2709 * manage its memory. 2710 */ 2711 public void getMemoryInfo(MemoryInfo outInfo) { 2712 try { 2713 getService().getMemoryInfo(outInfo); 2714 } catch (RemoteException e) { 2715 throw e.rethrowFromSystemServer(); 2716 } 2717 } 2718 2719 /** 2720 * Information you can retrieve about an ActivityStack in the system. 2721 * @hide 2722 */ 2723 public static class StackInfo implements Parcelable { 2724 public int stackId; 2725 public Rect bounds = new Rect(); 2726 public int[] taskIds; 2727 public String[] taskNames; 2728 public Rect[] taskBounds; 2729 public int[] taskUserIds; 2730 public ComponentName topActivity; 2731 public int displayId; 2732 public int userId; 2733 public boolean visible; 2734 // Index of the stack in the display's stack list, can be used for comparison of stack order 2735 public int position; 2736 2737 @Override 2738 public int describeContents() { 2739 return 0; 2740 } 2741 2742 @Override 2743 public void writeToParcel(Parcel dest, int flags) { 2744 dest.writeInt(stackId); 2745 dest.writeInt(bounds.left); 2746 dest.writeInt(bounds.top); 2747 dest.writeInt(bounds.right); 2748 dest.writeInt(bounds.bottom); 2749 dest.writeIntArray(taskIds); 2750 dest.writeStringArray(taskNames); 2751 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2752 dest.writeInt(boundsCount); 2753 for (int i = 0; i < boundsCount; i++) { 2754 dest.writeInt(taskBounds[i].left); 2755 dest.writeInt(taskBounds[i].top); 2756 dest.writeInt(taskBounds[i].right); 2757 dest.writeInt(taskBounds[i].bottom); 2758 } 2759 dest.writeIntArray(taskUserIds); 2760 dest.writeInt(displayId); 2761 dest.writeInt(userId); 2762 dest.writeInt(visible ? 1 : 0); 2763 dest.writeInt(position); 2764 if (topActivity != null) { 2765 dest.writeInt(1); 2766 topActivity.writeToParcel(dest, 0); 2767 } else { 2768 dest.writeInt(0); 2769 } 2770 } 2771 2772 public void readFromParcel(Parcel source) { 2773 stackId = source.readInt(); 2774 bounds = new Rect( 2775 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2776 taskIds = source.createIntArray(); 2777 taskNames = source.createStringArray(); 2778 final int boundsCount = source.readInt(); 2779 if (boundsCount > 0) { 2780 taskBounds = new Rect[boundsCount]; 2781 for (int i = 0; i < boundsCount; i++) { 2782 taskBounds[i] = new Rect(); 2783 taskBounds[i].set( 2784 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2785 } 2786 } else { 2787 taskBounds = null; 2788 } 2789 taskUserIds = source.createIntArray(); 2790 displayId = source.readInt(); 2791 userId = source.readInt(); 2792 visible = source.readInt() > 0; 2793 position = source.readInt(); 2794 if (source.readInt() > 0) { 2795 topActivity = ComponentName.readFromParcel(source); 2796 } 2797 } 2798 2799 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2800 @Override 2801 public StackInfo createFromParcel(Parcel source) { 2802 return new StackInfo(source); 2803 } 2804 @Override 2805 public StackInfo[] newArray(int size) { 2806 return new StackInfo[size]; 2807 } 2808 }; 2809 2810 public StackInfo() { 2811 } 2812 2813 private StackInfo(Parcel source) { 2814 readFromParcel(source); 2815 } 2816 2817 public String toString(String prefix) { 2818 StringBuilder sb = new StringBuilder(256); 2819 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2820 sb.append(" bounds="); sb.append(bounds.toShortString()); 2821 sb.append(" displayId="); sb.append(displayId); 2822 sb.append(" userId="); sb.append(userId); 2823 sb.append("\n"); 2824 prefix = prefix + " "; 2825 for (int i = 0; i < taskIds.length; ++i) { 2826 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2827 sb.append(": "); sb.append(taskNames[i]); 2828 if (taskBounds != null) { 2829 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2830 } 2831 sb.append(" userId=").append(taskUserIds[i]); 2832 sb.append(" visible=").append(visible); 2833 if (topActivity != null) { 2834 sb.append(" topActivity=").append(topActivity); 2835 } 2836 sb.append("\n"); 2837 } 2838 return sb.toString(); 2839 } 2840 2841 @Override 2842 public String toString() { 2843 return toString(""); 2844 } 2845 } 2846 2847 /** 2848 * @hide 2849 */ 2850 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2851 try { 2852 return getService().clearApplicationUserData(packageName, 2853 observer, UserHandle.myUserId()); 2854 } catch (RemoteException e) { 2855 throw e.rethrowFromSystemServer(); 2856 } 2857 } 2858 2859 /** 2860 * Permits an application to erase its own data from disk. This is equivalent to 2861 * the user choosing to clear the app's data from within the device settings UI. It 2862 * erases all dynamic data associated with the app -- its private data and data in its 2863 * private area on external storage -- but does not remove the installed application 2864 * itself, nor any OBB files. 2865 * 2866 * @return {@code true} if the application successfully requested that the application's 2867 * data be erased; {@code false} otherwise. 2868 */ 2869 public boolean clearApplicationUserData() { 2870 return clearApplicationUserData(mContext.getPackageName(), null); 2871 } 2872 2873 2874 /** 2875 * Permits an application to get the persistent URI permissions granted to another. 2876 * 2877 * <p>Typically called by Settings. 2878 * 2879 * @param packageName application to look for the granted permissions 2880 * @return list of granted URI permissions 2881 * 2882 * @hide 2883 */ 2884 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2885 try { 2886 return getService().getGrantedUriPermissions(packageName, 2887 UserHandle.myUserId()); 2888 } catch (RemoteException e) { 2889 throw e.rethrowFromSystemServer(); 2890 } 2891 } 2892 2893 /** 2894 * Permits an application to clear the persistent URI permissions granted to another. 2895 * 2896 * <p>Typically called by Settings. 2897 * 2898 * @param packageName application to clear its granted permissions 2899 * 2900 * @hide 2901 */ 2902 public void clearGrantedUriPermissions(String packageName) { 2903 try { 2904 getService().clearGrantedUriPermissions(packageName, 2905 UserHandle.myUserId()); 2906 } catch (RemoteException e) { 2907 throw e.rethrowFromSystemServer(); 2908 } 2909 } 2910 2911 /** 2912 * Information you can retrieve about any processes that are in an error condition. 2913 */ 2914 public static class ProcessErrorStateInfo implements Parcelable { 2915 /** 2916 * Condition codes 2917 */ 2918 public static final int NO_ERROR = 0; 2919 public static final int CRASHED = 1; 2920 public static final int NOT_RESPONDING = 2; 2921 2922 /** 2923 * The condition that the process is in. 2924 */ 2925 public int condition; 2926 2927 /** 2928 * The process name in which the crash or error occurred. 2929 */ 2930 public String processName; 2931 2932 /** 2933 * The pid of this process; 0 if none 2934 */ 2935 public int pid; 2936 2937 /** 2938 * The kernel user-ID that has been assigned to this process; 2939 * currently this is not a unique ID (multiple applications can have 2940 * the same uid). 2941 */ 2942 public int uid; 2943 2944 /** 2945 * The activity name associated with the error, if known. May be null. 2946 */ 2947 public String tag; 2948 2949 /** 2950 * A short message describing the error condition. 2951 */ 2952 public String shortMsg; 2953 2954 /** 2955 * A long message describing the error condition. 2956 */ 2957 public String longMsg; 2958 2959 /** 2960 * The stack trace where the error originated. May be null. 2961 */ 2962 public String stackTrace; 2963 2964 /** 2965 * to be deprecated: This value will always be null. 2966 */ 2967 public byte[] crashData = null; 2968 2969 public ProcessErrorStateInfo() { 2970 } 2971 2972 @Override 2973 public int describeContents() { 2974 return 0; 2975 } 2976 2977 @Override 2978 public void writeToParcel(Parcel dest, int flags) { 2979 dest.writeInt(condition); 2980 dest.writeString(processName); 2981 dest.writeInt(pid); 2982 dest.writeInt(uid); 2983 dest.writeString(tag); 2984 dest.writeString(shortMsg); 2985 dest.writeString(longMsg); 2986 dest.writeString(stackTrace); 2987 } 2988 2989 public void readFromParcel(Parcel source) { 2990 condition = source.readInt(); 2991 processName = source.readString(); 2992 pid = source.readInt(); 2993 uid = source.readInt(); 2994 tag = source.readString(); 2995 shortMsg = source.readString(); 2996 longMsg = source.readString(); 2997 stackTrace = source.readString(); 2998 } 2999 3000 public static final Creator<ProcessErrorStateInfo> CREATOR = 3001 new Creator<ProcessErrorStateInfo>() { 3002 public ProcessErrorStateInfo createFromParcel(Parcel source) { 3003 return new ProcessErrorStateInfo(source); 3004 } 3005 public ProcessErrorStateInfo[] newArray(int size) { 3006 return new ProcessErrorStateInfo[size]; 3007 } 3008 }; 3009 3010 private ProcessErrorStateInfo(Parcel source) { 3011 readFromParcel(source); 3012 } 3013 } 3014 3015 /** 3016 * Returns a list of any processes that are currently in an error condition. The result 3017 * will be null if all processes are running properly at this time. 3018 * 3019 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 3020 * current error conditions (it will not return an empty list). This list ordering is not 3021 * specified. 3022 */ 3023 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 3024 try { 3025 return getService().getProcessesInErrorState(); 3026 } catch (RemoteException e) { 3027 throw e.rethrowFromSystemServer(); 3028 } 3029 } 3030 3031 /** 3032 * Information you can retrieve about a running process. 3033 */ 3034 public static class RunningAppProcessInfo implements Parcelable { 3035 /** 3036 * The name of the process that this object is associated with 3037 */ 3038 public String processName; 3039 3040 /** 3041 * The pid of this process; 0 if none 3042 */ 3043 public int pid; 3044 3045 /** 3046 * The user id of this process. 3047 */ 3048 public int uid; 3049 3050 /** 3051 * All packages that have been loaded into the process. 3052 */ 3053 public String pkgList[]; 3054 3055 /** 3056 * Constant for {@link #flags}: this is an app that is unable to 3057 * correctly save its state when going to the background, 3058 * so it can not be killed while in the background. 3059 * @hide 3060 */ 3061 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 3062 3063 /** 3064 * Constant for {@link #flags}: this process is associated with a 3065 * persistent system app. 3066 * @hide 3067 */ 3068 public static final int FLAG_PERSISTENT = 1<<1; 3069 3070 /** 3071 * Constant for {@link #flags}: this process is associated with a 3072 * persistent system app. 3073 * @hide 3074 */ 3075 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 3076 3077 /** 3078 * Flags of information. May be any of 3079 * {@link #FLAG_CANT_SAVE_STATE}. 3080 * @hide 3081 */ 3082 public int flags; 3083 3084 /** 3085 * Last memory trim level reported to the process: corresponds to 3086 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3087 * ComponentCallbacks2.onTrimMemory(int)}. 3088 */ 3089 public int lastTrimLevel; 3090 3091 /** 3092 * Constant for {@link #importance}: This process is running the 3093 * foreground UI; that is, it is the thing currently at the top of the screen 3094 * that the user is interacting with. 3095 */ 3096 public static final int IMPORTANCE_FOREGROUND = 100; 3097 3098 /** 3099 * Constant for {@link #importance}: This process is running a foreground 3100 * service, for example to perform music playback even while the user is 3101 * not immediately in the app. This generally indicates that the process 3102 * is doing something the user actively cares about. 3103 */ 3104 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3105 3106 /** 3107 * Constant for {@link #importance}: This process is running the foreground 3108 * UI, but the device is asleep so it is not visible to the user. This means 3109 * the user is not really aware of the process, because they can not see or 3110 * interact with it, but it is quite important because it what they expect to 3111 * return to once unlocking the device. 3112 */ 3113 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3114 3115 /** 3116 * Constant for {@link #importance}: This process is running something 3117 * that is actively visible to the user, though not in the immediate 3118 * foreground. This may be running a window that is behind the current 3119 * foreground (so paused and with its state saved, not interacting with 3120 * the user, but visible to them to some degree); it may also be running 3121 * other services under the system's control that it inconsiders important. 3122 */ 3123 public static final int IMPORTANCE_VISIBLE = 200; 3124 3125 /** 3126 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3127 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3128 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3129 * 3130 * @deprecated Use {@link #IMPORTANCE_PERCEPTIBLE} instead. 3131 */ 3132 @Deprecated 3133 public static final int IMPORTANCE_PERCEPTIBLE_DEPRECATED = 130; 3134 3135 /** 3136 * Constant for {@link #importance}: This process is not something the user 3137 * is directly aware of, but is otherwise perceptible to them to some degree. 3138 */ 3139 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3140 3141 /** 3142 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3143 * this wrong value 3144 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3145 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3146 * 3147 * @deprecated Use {@link #IMPORTANCE_CANT_SAVE_STATE} instead. 3148 * @hide 3149 */ 3150 @Deprecated 3151 public static final int IMPORTANCE_CANT_SAVE_STATE_DEPRECATED = 170; 3152 3153 /** 3154 * Constant for {@link #importance}: This process is running an 3155 * application that can not save its state, and thus can't be killed 3156 * while in the background. 3157 * @hide 3158 */ 3159 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3160 3161 /** 3162 * Constant for {@link #importance}: This process is contains services 3163 * that should remain running. These are background services apps have 3164 * started, not something the user is aware of, so they may be killed by 3165 * the system relatively freely (though it is generally desired that they 3166 * stay running as long as they want to). 3167 */ 3168 public static final int IMPORTANCE_SERVICE = 300; 3169 3170 /** 3171 * Constant for {@link #importance}: This process process contains 3172 * cached code that is expendable, not actively running any app components 3173 * we care about. 3174 */ 3175 public static final int IMPORTANCE_CACHED = 400; 3176 3177 /** 3178 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3179 */ 3180 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3181 3182 /** 3183 * Constant for {@link #importance}: This process is empty of any 3184 * actively running code. 3185 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3186 */ 3187 @Deprecated 3188 public static final int IMPORTANCE_EMPTY = 500; 3189 3190 /** 3191 * Constant for {@link #importance}: This process does not exist. 3192 */ 3193 public static final int IMPORTANCE_GONE = 1000; 3194 3195 /** 3196 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3197 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3198 * @hide 3199 */ 3200 public static int procStateToImportance(int procState) { 3201 if (procState == PROCESS_STATE_NONEXISTENT) { 3202 return IMPORTANCE_GONE; 3203 } else if (procState >= PROCESS_STATE_HOME) { 3204 return IMPORTANCE_CACHED; 3205 } else if (procState >= PROCESS_STATE_SERVICE) { 3206 return IMPORTANCE_SERVICE; 3207 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3208 return IMPORTANCE_CANT_SAVE_STATE; 3209 } else if (procState >= PROCESS_STATE_IMPORTANT_BACKGROUND) { 3210 return IMPORTANCE_PERCEPTIBLE; 3211 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3212 return IMPORTANCE_VISIBLE; 3213 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3214 return IMPORTANCE_TOP_SLEEPING; 3215 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3216 return IMPORTANCE_FOREGROUND_SERVICE; 3217 } else { 3218 return IMPORTANCE_FOREGROUND; 3219 } 3220 } 3221 3222 /** 3223 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3224 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3225 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3226 * client's target SDK < {@link VERSION_CODES#O}. 3227 * @hide 3228 */ 3229 public static int procStateToImportanceForClient(int procState, Context clientContext) { 3230 final int importance = procStateToImportance(procState); 3231 3232 // For pre O apps, convert to the old, wrong values. 3233 if (clientContext.getApplicationInfo().targetSdkVersion < VERSION_CODES.O) { 3234 switch (importance) { 3235 case IMPORTANCE_PERCEPTIBLE: 3236 return IMPORTANCE_PERCEPTIBLE_DEPRECATED; 3237 case IMPORTANCE_CANT_SAVE_STATE: 3238 return IMPORTANCE_CANT_SAVE_STATE_DEPRECATED; 3239 } 3240 } 3241 return importance; 3242 } 3243 3244 /** @hide */ 3245 public static int importanceToProcState(int importance) { 3246 if (importance == IMPORTANCE_GONE) { 3247 return PROCESS_STATE_NONEXISTENT; 3248 } else if (importance >= IMPORTANCE_CACHED) { 3249 return PROCESS_STATE_HOME; 3250 } else if (importance >= IMPORTANCE_SERVICE) { 3251 return PROCESS_STATE_SERVICE; 3252 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3253 return PROCESS_STATE_HEAVY_WEIGHT; 3254 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3255 return PROCESS_STATE_IMPORTANT_BACKGROUND; 3256 } else if (importance >= IMPORTANCE_VISIBLE) { 3257 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3258 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3259 return PROCESS_STATE_TOP_SLEEPING; 3260 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3261 return PROCESS_STATE_FOREGROUND_SERVICE; 3262 } else { 3263 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3264 } 3265 } 3266 3267 /** 3268 * The relative importance level that the system places on this 3269 * process. May be one of {@link #IMPORTANCE_FOREGROUND}, 3270 * {@link #IMPORTANCE_VISIBLE}, {@link #IMPORTANCE_SERVICE}, or 3271 * {@link #IMPORTANCE_CACHED}. These 3272 * constants are numbered so that "more important" values are always 3273 * smaller than "less important" values. 3274 */ 3275 public int importance; 3276 3277 /** 3278 * An additional ordering within a particular {@link #importance} 3279 * category, providing finer-grained information about the relative 3280 * utility of processes within a category. This number means nothing 3281 * except that a smaller values are more recently used (and thus 3282 * more important). Currently an LRU value is only maintained for 3283 * the {@link #IMPORTANCE_CACHED} category, though others may 3284 * be maintained in the future. 3285 */ 3286 public int lru; 3287 3288 /** 3289 * Constant for {@link #importanceReasonCode}: nothing special has 3290 * been specified for the reason for this level. 3291 */ 3292 public static final int REASON_UNKNOWN = 0; 3293 3294 /** 3295 * Constant for {@link #importanceReasonCode}: one of the application's 3296 * content providers is being used by another process. The pid of 3297 * the client process is in {@link #importanceReasonPid} and the 3298 * target provider in this process is in 3299 * {@link #importanceReasonComponent}. 3300 */ 3301 public static final int REASON_PROVIDER_IN_USE = 1; 3302 3303 /** 3304 * Constant for {@link #importanceReasonCode}: one of the application's 3305 * content providers is being used by another process. The pid of 3306 * the client process is in {@link #importanceReasonPid} and the 3307 * target provider in this process is in 3308 * {@link #importanceReasonComponent}. 3309 */ 3310 public static final int REASON_SERVICE_IN_USE = 2; 3311 3312 /** 3313 * The reason for {@link #importance}, if any. 3314 */ 3315 public int importanceReasonCode; 3316 3317 /** 3318 * For the specified values of {@link #importanceReasonCode}, this 3319 * is the process ID of the other process that is a client of this 3320 * process. This will be 0 if no other process is using this one. 3321 */ 3322 public int importanceReasonPid; 3323 3324 /** 3325 * For the specified values of {@link #importanceReasonCode}, this 3326 * is the name of the component that is being used in this process. 3327 */ 3328 public ComponentName importanceReasonComponent; 3329 3330 /** 3331 * When {@link #importanceReasonPid} is non-0, this is the importance 3332 * of the other pid. @hide 3333 */ 3334 public int importanceReasonImportance; 3335 3336 /** 3337 * Current process state, as per PROCESS_STATE_* constants. 3338 * @hide 3339 */ 3340 public int processState; 3341 3342 public RunningAppProcessInfo() { 3343 importance = IMPORTANCE_FOREGROUND; 3344 importanceReasonCode = REASON_UNKNOWN; 3345 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3346 } 3347 3348 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3349 processName = pProcessName; 3350 pid = pPid; 3351 pkgList = pArr; 3352 } 3353 3354 public int describeContents() { 3355 return 0; 3356 } 3357 3358 public void writeToParcel(Parcel dest, int flags) { 3359 dest.writeString(processName); 3360 dest.writeInt(pid); 3361 dest.writeInt(uid); 3362 dest.writeStringArray(pkgList); 3363 dest.writeInt(this.flags); 3364 dest.writeInt(lastTrimLevel); 3365 dest.writeInt(importance); 3366 dest.writeInt(lru); 3367 dest.writeInt(importanceReasonCode); 3368 dest.writeInt(importanceReasonPid); 3369 ComponentName.writeToParcel(importanceReasonComponent, dest); 3370 dest.writeInt(importanceReasonImportance); 3371 dest.writeInt(processState); 3372 } 3373 3374 public void readFromParcel(Parcel source) { 3375 processName = source.readString(); 3376 pid = source.readInt(); 3377 uid = source.readInt(); 3378 pkgList = source.readStringArray(); 3379 flags = source.readInt(); 3380 lastTrimLevel = source.readInt(); 3381 importance = source.readInt(); 3382 lru = source.readInt(); 3383 importanceReasonCode = source.readInt(); 3384 importanceReasonPid = source.readInt(); 3385 importanceReasonComponent = ComponentName.readFromParcel(source); 3386 importanceReasonImportance = source.readInt(); 3387 processState = source.readInt(); 3388 } 3389 3390 public static final Creator<RunningAppProcessInfo> CREATOR = 3391 new Creator<RunningAppProcessInfo>() { 3392 public RunningAppProcessInfo createFromParcel(Parcel source) { 3393 return new RunningAppProcessInfo(source); 3394 } 3395 public RunningAppProcessInfo[] newArray(int size) { 3396 return new RunningAppProcessInfo[size]; 3397 } 3398 }; 3399 3400 private RunningAppProcessInfo(Parcel source) { 3401 readFromParcel(source); 3402 } 3403 } 3404 3405 /** 3406 * Returns a list of application processes installed on external media 3407 * that are running on the device. 3408 * 3409 * <p><b>Note: this method is only intended for debugging or building 3410 * a user-facing process management UI.</b></p> 3411 * 3412 * @return Returns a list of ApplicationInfo records, or null if none 3413 * This list ordering is not specified. 3414 * @hide 3415 */ 3416 public List<ApplicationInfo> getRunningExternalApplications() { 3417 try { 3418 return getService().getRunningExternalApplications(); 3419 } catch (RemoteException e) { 3420 throw e.rethrowFromSystemServer(); 3421 } 3422 } 3423 3424 /** 3425 * Sets the memory trim mode for a process and schedules a memory trim operation. 3426 * 3427 * <p><b>Note: this method is only intended for testing framework.</b></p> 3428 * 3429 * @return Returns true if successful. 3430 * @hide 3431 */ 3432 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3433 try { 3434 return getService().setProcessMemoryTrimLevel(process, userId, 3435 level); 3436 } catch (RemoteException e) { 3437 throw e.rethrowFromSystemServer(); 3438 } 3439 } 3440 3441 /** 3442 * Returns a list of application processes that are running on the device. 3443 * 3444 * <p><b>Note: this method is only intended for debugging or building 3445 * a user-facing process management UI.</b></p> 3446 * 3447 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3448 * running processes (it will not return an empty list). This list ordering is not 3449 * specified. 3450 */ 3451 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3452 try { 3453 return getService().getRunningAppProcesses(); 3454 } catch (RemoteException e) { 3455 throw e.rethrowFromSystemServer(); 3456 } 3457 } 3458 3459 /** 3460 * Return the importance of a given package name, based on the processes that are 3461 * currently running. The return value is one of the importance constants defined 3462 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3463 * processes that this package has code running inside of. If there are no processes 3464 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3465 * @hide 3466 */ 3467 @SystemApi @TestApi 3468 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3469 public int getPackageImportance(String packageName) { 3470 try { 3471 int procState = getService().getPackageProcessState(packageName, 3472 mContext.getOpPackageName()); 3473 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3474 } catch (RemoteException e) { 3475 throw e.rethrowFromSystemServer(); 3476 } 3477 } 3478 3479 /** 3480 * Return the importance of a given uid, based on the processes that are 3481 * currently running. The return value is one of the importance constants defined 3482 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3483 * processes that this uid has running. If there are no processes 3484 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3485 * @hide 3486 */ 3487 @SystemApi @TestApi 3488 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3489 public int getUidImportance(int uid) { 3490 try { 3491 int procState = getService().getUidProcessState(uid, 3492 mContext.getOpPackageName()); 3493 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3494 } catch (RemoteException e) { 3495 throw e.rethrowFromSystemServer(); 3496 } 3497 } 3498 3499 /** 3500 * Callback to get reports about changes to the importance of a uid. Use with 3501 * {@link #addOnUidImportanceListener}. 3502 * @hide 3503 */ 3504 @SystemApi @TestApi 3505 public interface OnUidImportanceListener { 3506 /** 3507 * The importance if a given uid has changed. Will be one of the importance 3508 * values in {@link RunningAppProcessInfo}; 3509 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3510 * when the uid is no longer running at all. This callback will happen on a thread 3511 * from a thread pool, not the main UI thread. 3512 * @param uid The uid whose importance has changed. 3513 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3514 */ 3515 void onUidImportance(int uid, int importance); 3516 } 3517 3518 /** 3519 * Start monitoring changes to the imoportance of uids running in the system. 3520 * @param listener The listener callback that will receive change reports. 3521 * @param importanceCutpoint The level of importance in which the caller is interested 3522 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3523 * is used here, you will receive a call each time a uids importance transitions between 3524 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3525 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3526 * 3527 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3528 * permission to use this feature.</p> 3529 * 3530 * @throws IllegalArgumentException If the listener is already registered. 3531 * @throws SecurityException If the caller does not hold 3532 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3533 * @hide 3534 */ 3535 @SystemApi @TestApi 3536 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3537 int importanceCutpoint) { 3538 synchronized (this) { 3539 if (mImportanceListeners.containsKey(listener)) { 3540 throw new IllegalArgumentException("Listener already registered: " + listener); 3541 } 3542 // TODO: implement the cut point in the system process to avoid IPCs. 3543 UidObserver observer = new UidObserver(listener, mContext); 3544 try { 3545 getService().registerUidObserver(observer, 3546 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3547 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3548 mContext.getOpPackageName()); 3549 } catch (RemoteException e) { 3550 throw e.rethrowFromSystemServer(); 3551 } 3552 mImportanceListeners.put(listener, observer); 3553 } 3554 } 3555 3556 /** 3557 * Remove an importance listener that was previously registered with 3558 * {@link #addOnUidImportanceListener}. 3559 * 3560 * @throws IllegalArgumentException If the listener is not registered. 3561 * @hide 3562 */ 3563 @SystemApi @TestApi 3564 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3565 synchronized (this) { 3566 UidObserver observer = mImportanceListeners.remove(listener); 3567 if (observer == null) { 3568 throw new IllegalArgumentException("Listener not registered: " + listener); 3569 } 3570 try { 3571 getService().unregisterUidObserver(observer); 3572 } catch (RemoteException e) { 3573 throw e.rethrowFromSystemServer(); 3574 } 3575 } 3576 } 3577 3578 /** 3579 * Return global memory state information for the calling process. This 3580 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3581 * only fields that will be filled in are 3582 * {@link RunningAppProcessInfo#pid}, 3583 * {@link RunningAppProcessInfo#uid}, 3584 * {@link RunningAppProcessInfo#lastTrimLevel}, 3585 * {@link RunningAppProcessInfo#importance}, 3586 * {@link RunningAppProcessInfo#lru}, and 3587 * {@link RunningAppProcessInfo#importanceReasonCode}. 3588 */ 3589 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3590 try { 3591 getService().getMyMemoryState(outState); 3592 } catch (RemoteException e) { 3593 throw e.rethrowFromSystemServer(); 3594 } 3595 } 3596 3597 /** 3598 * Return information about the memory usage of one or more processes. 3599 * 3600 * <p><b>Note: this method is only intended for debugging or building 3601 * a user-facing process management UI.</b></p> 3602 * 3603 * @param pids The pids of the processes whose memory usage is to be 3604 * retrieved. 3605 * @return Returns an array of memory information, one for each 3606 * requested pid. 3607 */ 3608 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3609 try { 3610 return getService().getProcessMemoryInfo(pids); 3611 } catch (RemoteException e) { 3612 throw e.rethrowFromSystemServer(); 3613 } 3614 } 3615 3616 /** 3617 * @deprecated This is now just a wrapper for 3618 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3619 * is no longer available to applications because it allows them to 3620 * break other applications by removing their alarms, stopping their 3621 * services, etc. 3622 */ 3623 @Deprecated 3624 public void restartPackage(String packageName) { 3625 killBackgroundProcesses(packageName); 3626 } 3627 3628 /** 3629 * Have the system immediately kill all background processes associated 3630 * with the given package. This is the same as the kernel killing those 3631 * processes to reclaim memory; the system will take care of restarting 3632 * these processes in the future as needed. 3633 * 3634 * <p>You must hold the permission 3635 * {@link android.Manifest.permission#KILL_BACKGROUND_PROCESSES} to be able to 3636 * call this method. 3637 * 3638 * @param packageName The name of the package whose processes are to 3639 * be killed. 3640 */ 3641 public void killBackgroundProcesses(String packageName) { 3642 try { 3643 getService().killBackgroundProcesses(packageName, 3644 UserHandle.myUserId()); 3645 } catch (RemoteException e) { 3646 throw e.rethrowFromSystemServer(); 3647 } 3648 } 3649 3650 /** 3651 * Kills the specified UID. 3652 * @param uid The UID to kill. 3653 * @param reason The reason for the kill. 3654 * 3655 * @hide 3656 */ 3657 @SystemApi 3658 @RequiresPermission(Manifest.permission.KILL_UID) 3659 public void killUid(int uid, String reason) { 3660 try { 3661 getService().killUid(UserHandle.getAppId(uid), 3662 UserHandle.getUserId(uid), reason); 3663 } catch (RemoteException e) { 3664 throw e.rethrowFromSystemServer(); 3665 } 3666 } 3667 3668 /** 3669 * Have the system perform a force stop of everything associated with 3670 * the given application package. All processes that share its uid 3671 * will be killed, all services it has running stopped, all activities 3672 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3673 * broadcast will be sent, so that any of its registered alarms can 3674 * be stopped, notifications removed, etc. 3675 * 3676 * <p>You must hold the permission 3677 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3678 * call this method. 3679 * 3680 * @param packageName The name of the package to be stopped. 3681 * @param userId The user for which the running package is to be stopped. 3682 * 3683 * @hide This is not available to third party applications due to 3684 * it allowing them to break other applications by stopping their 3685 * services, removing their alarms, etc. 3686 */ 3687 public void forceStopPackageAsUser(String packageName, int userId) { 3688 try { 3689 getService().forceStopPackage(packageName, userId); 3690 } catch (RemoteException e) { 3691 throw e.rethrowFromSystemServer(); 3692 } 3693 } 3694 3695 /** 3696 * @see #forceStopPackageAsUser(String, int) 3697 * @hide 3698 */ 3699 @SystemApi 3700 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3701 public void forceStopPackage(String packageName) { 3702 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3703 } 3704 3705 /** 3706 * Get the device configuration attributes. 3707 */ 3708 public ConfigurationInfo getDeviceConfigurationInfo() { 3709 try { 3710 return getService().getDeviceConfigurationInfo(); 3711 } catch (RemoteException e) { 3712 throw e.rethrowFromSystemServer(); 3713 } 3714 } 3715 3716 /** 3717 * Get the preferred density of icons for the launcher. This is used when 3718 * custom drawables are created (e.g., for shortcuts). 3719 * 3720 * @return density in terms of DPI 3721 */ 3722 public int getLauncherLargeIconDensity() { 3723 final Resources res = mContext.getResources(); 3724 final int density = res.getDisplayMetrics().densityDpi; 3725 final int sw = res.getConfiguration().smallestScreenWidthDp; 3726 3727 if (sw < 600) { 3728 // Smaller than approx 7" tablets, use the regular icon size. 3729 return density; 3730 } 3731 3732 switch (density) { 3733 case DisplayMetrics.DENSITY_LOW: 3734 return DisplayMetrics.DENSITY_MEDIUM; 3735 case DisplayMetrics.DENSITY_MEDIUM: 3736 return DisplayMetrics.DENSITY_HIGH; 3737 case DisplayMetrics.DENSITY_TV: 3738 return DisplayMetrics.DENSITY_XHIGH; 3739 case DisplayMetrics.DENSITY_HIGH: 3740 return DisplayMetrics.DENSITY_XHIGH; 3741 case DisplayMetrics.DENSITY_XHIGH: 3742 return DisplayMetrics.DENSITY_XXHIGH; 3743 case DisplayMetrics.DENSITY_XXHIGH: 3744 return DisplayMetrics.DENSITY_XHIGH * 2; 3745 default: 3746 // The density is some abnormal value. Return some other 3747 // abnormal value that is a reasonable scaling of it. 3748 return (int)((density*1.5f)+.5f); 3749 } 3750 } 3751 3752 /** 3753 * Get the preferred launcher icon size. This is used when custom drawables 3754 * are created (e.g., for shortcuts). 3755 * 3756 * @return dimensions of square icons in terms of pixels 3757 */ 3758 public int getLauncherLargeIconSize() { 3759 return getLauncherLargeIconSizeInner(mContext); 3760 } 3761 3762 static int getLauncherLargeIconSizeInner(Context context) { 3763 final Resources res = context.getResources(); 3764 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3765 final int sw = res.getConfiguration().smallestScreenWidthDp; 3766 3767 if (sw < 600) { 3768 // Smaller than approx 7" tablets, use the regular icon size. 3769 return size; 3770 } 3771 3772 final int density = res.getDisplayMetrics().densityDpi; 3773 3774 switch (density) { 3775 case DisplayMetrics.DENSITY_LOW: 3776 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3777 case DisplayMetrics.DENSITY_MEDIUM: 3778 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3779 case DisplayMetrics.DENSITY_TV: 3780 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3781 case DisplayMetrics.DENSITY_HIGH: 3782 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3783 case DisplayMetrics.DENSITY_XHIGH: 3784 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3785 case DisplayMetrics.DENSITY_XXHIGH: 3786 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3787 default: 3788 // The density is some abnormal value. Return some other 3789 // abnormal value that is a reasonable scaling of it. 3790 return (int)((size*1.5f) + .5f); 3791 } 3792 } 3793 3794 /** 3795 * Returns "true" if the user interface is currently being messed with 3796 * by a monkey. 3797 */ 3798 public static boolean isUserAMonkey() { 3799 try { 3800 return getService().isUserAMonkey(); 3801 } catch (RemoteException e) { 3802 throw e.rethrowFromSystemServer(); 3803 } 3804 } 3805 3806 /** 3807 * Returns "true" if device is running in a test harness. 3808 */ 3809 public static boolean isRunningInTestHarness() { 3810 return SystemProperties.getBoolean("ro.test_harness", false); 3811 } 3812 3813 /** 3814 * Returns the launch count of each installed package. 3815 * 3816 * @hide 3817 */ 3818 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3819 try { 3820 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3821 ServiceManager.getService("usagestats")); 3822 if (usageStatsService == null) { 3823 return new HashMap<String, Integer>(); 3824 } 3825 3826 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3827 ActivityThread.currentPackageName()); 3828 if (allPkgUsageStats == null) { 3829 return new HashMap<String, Integer>(); 3830 } 3831 3832 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3833 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3834 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3835 } 3836 3837 return launchCounts; 3838 } catch (RemoteException e) { 3839 Log.w(TAG, "Could not query launch counts", e); 3840 return new HashMap<String, Integer>(); 3841 } 3842 }*/ 3843 3844 /** @hide */ 3845 public static int checkComponentPermission(String permission, int uid, 3846 int owningUid, boolean exported) { 3847 // Root, system server get to do everything. 3848 final int appId = UserHandle.getAppId(uid); 3849 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3850 return PackageManager.PERMISSION_GRANTED; 3851 } 3852 // Isolated processes don't get any permissions. 3853 if (UserHandle.isIsolated(uid)) { 3854 return PackageManager.PERMISSION_DENIED; 3855 } 3856 // If there is a uid that owns whatever is being accessed, it has 3857 // blanket access to it regardless of the permissions it requires. 3858 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3859 return PackageManager.PERMISSION_GRANTED; 3860 } 3861 // If the target is not exported, then nobody else can get to it. 3862 if (!exported) { 3863 /* 3864 RuntimeException here = new RuntimeException("here"); 3865 here.fillInStackTrace(); 3866 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3867 here); 3868 */ 3869 return PackageManager.PERMISSION_DENIED; 3870 } 3871 if (permission == null) { 3872 return PackageManager.PERMISSION_GRANTED; 3873 } 3874 try { 3875 return AppGlobals.getPackageManager() 3876 .checkUidPermission(permission, uid); 3877 } catch (RemoteException e) { 3878 throw e.rethrowFromSystemServer(); 3879 } 3880 } 3881 3882 /** @hide */ 3883 public static int checkUidPermission(String permission, int uid) { 3884 try { 3885 return AppGlobals.getPackageManager() 3886 .checkUidPermission(permission, uid); 3887 } catch (RemoteException e) { 3888 throw e.rethrowFromSystemServer(); 3889 } 3890 } 3891 3892 /** 3893 * @hide 3894 * Helper for dealing with incoming user arguments to system service calls. 3895 * Takes care of checking permissions and converting USER_CURRENT to the 3896 * actual current user. 3897 * 3898 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3899 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3900 * @param userId The user id argument supplied by the caller -- this is the user 3901 * they want to run as. 3902 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3903 * to get a USER_ALL returned and deal with it correctly. If false, 3904 * an exception will be thrown if USER_ALL is supplied. 3905 * @param requireFull If true, the caller must hold 3906 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3907 * different user than their current process; otherwise they must hold 3908 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3909 * @param name Optional textual name of the incoming call; only for generating error messages. 3910 * @param callerPackage Optional package name of caller; only for error messages. 3911 * 3912 * @return Returns the user ID that the call should run as. Will always be a concrete 3913 * user number, unless <var>allowAll</var> is true in which case it could also be 3914 * USER_ALL. 3915 */ 3916 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3917 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3918 if (UserHandle.getUserId(callingUid) == userId) { 3919 return userId; 3920 } 3921 try { 3922 return getService().handleIncomingUser(callingPid, 3923 callingUid, userId, allowAll, requireFull, name, callerPackage); 3924 } catch (RemoteException e) { 3925 throw e.rethrowFromSystemServer(); 3926 } 3927 } 3928 3929 /** 3930 * Gets the userId of the current foreground user. Requires system permissions. 3931 * @hide 3932 */ 3933 @SystemApi 3934 public static int getCurrentUser() { 3935 UserInfo ui; 3936 try { 3937 ui = getService().getCurrentUser(); 3938 return ui != null ? ui.id : 0; 3939 } catch (RemoteException e) { 3940 throw e.rethrowFromSystemServer(); 3941 } 3942 } 3943 3944 /** 3945 * @param userid the user's id. Zero indicates the default user. 3946 * @hide 3947 */ 3948 public boolean switchUser(int userid) { 3949 try { 3950 return getService().switchUser(userid); 3951 } catch (RemoteException e) { 3952 throw e.rethrowFromSystemServer(); 3953 } 3954 } 3955 3956 /** 3957 * Logs out current current foreground user by switching to the system user and stopping the 3958 * user being switched from. 3959 * @hide 3960 */ 3961 public static void logoutCurrentUser() { 3962 int currentUser = ActivityManager.getCurrentUser(); 3963 if (currentUser != UserHandle.USER_SYSTEM) { 3964 try { 3965 getService().switchUser(UserHandle.USER_SYSTEM); 3966 getService().stopUser(currentUser, /* force= */ false, null); 3967 } catch (RemoteException e) { 3968 e.rethrowFromSystemServer(); 3969 } 3970 } 3971 } 3972 3973 /** {@hide} */ 3974 public static final int FLAG_OR_STOPPED = 1 << 0; 3975 /** {@hide} */ 3976 public static final int FLAG_AND_LOCKED = 1 << 1; 3977 /** {@hide} */ 3978 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3979 /** {@hide} */ 3980 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3981 3982 /** 3983 * Return whether the given user is actively running. This means that 3984 * the user is in the "started" state, not "stopped" -- it is currently 3985 * allowed to run code through scheduled alarms, receiving broadcasts, 3986 * etc. A started user may be either the current foreground user or a 3987 * background user; the result here does not distinguish between the two. 3988 * @param userId the user's id. Zero indicates the default user. 3989 * @hide 3990 */ 3991 public boolean isUserRunning(int userId) { 3992 try { 3993 return getService().isUserRunning(userId, 0); 3994 } catch (RemoteException e) { 3995 throw e.rethrowFromSystemServer(); 3996 } 3997 } 3998 3999 /** {@hide} */ 4000 public boolean isVrModePackageEnabled(ComponentName component) { 4001 try { 4002 return getService().isVrModePackageEnabled(component); 4003 } catch (RemoteException e) { 4004 throw e.rethrowFromSystemServer(); 4005 } 4006 } 4007 4008 /** 4009 * Perform a system dump of various state associated with the given application 4010 * package name. This call blocks while the dump is being performed, so should 4011 * not be done on a UI thread. The data will be written to the given file 4012 * descriptor as text. An application must hold the 4013 * {@link android.Manifest.permission#DUMP} permission to make this call. 4014 * @param fd The file descriptor that the dump should be written to. The file 4015 * descriptor is <em>not</em> closed by this function; the caller continues to 4016 * own it. 4017 * @param packageName The name of the package that is to be dumped. 4018 */ 4019 public void dumpPackageState(FileDescriptor fd, String packageName) { 4020 dumpPackageStateStatic(fd, packageName); 4021 } 4022 4023 /** 4024 * @hide 4025 */ 4026 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4027 FileOutputStream fout = new FileOutputStream(fd); 4028 PrintWriter pw = new FastPrintWriter(fout); 4029 dumpService(pw, fd, "package", new String[] { packageName }); 4030 pw.println(); 4031 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4032 "-a", "package", packageName }); 4033 pw.println(); 4034 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4035 pw.println(); 4036 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4037 pw.println(); 4038 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 4039 pw.println(); 4040 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4041 pw.flush(); 4042 } 4043 4044 /** 4045 * @hide 4046 */ 4047 public static boolean isSystemReady() { 4048 if (!sSystemReady) { 4049 if (ActivityThread.isSystem()) { 4050 sSystemReady = 4051 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4052 } else { 4053 // Since this is being called from outside system server, system should be 4054 // ready by now. 4055 sSystemReady = true; 4056 } 4057 } 4058 return sSystemReady; 4059 } 4060 4061 /** 4062 * @hide 4063 */ 4064 public static void broadcastStickyIntent(Intent intent, int userId) { 4065 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4066 } 4067 4068 /** 4069 * Convenience for sending a sticky broadcast. For internal use only. 4070 * 4071 * @hide 4072 */ 4073 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4074 try { 4075 getService().broadcastIntent( 4076 null, intent, null, null, Activity.RESULT_OK, null, null, 4077 null /*permission*/, appOp, null, false, true, userId); 4078 } catch (RemoteException ex) { 4079 } 4080 } 4081 4082 /** 4083 * @hide 4084 */ 4085 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4086 String tag) { 4087 try { 4088 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4089 sourceUid, sourcePkg, tag); 4090 } catch (RemoteException ex) { 4091 } 4092 } 4093 4094 /** 4095 * @hide 4096 */ 4097 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4098 try { 4099 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4100 } catch (RemoteException ex) { 4101 } 4102 } 4103 4104 /** 4105 * @hide 4106 */ 4107 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4108 try { 4109 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4110 } catch (RemoteException ex) { 4111 } 4112 } 4113 4114 /** 4115 * @hide 4116 */ 4117 public static IActivityManager getService() { 4118 return IActivityManagerSingleton.get(); 4119 } 4120 4121 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4122 new Singleton<IActivityManager>() { 4123 @Override 4124 protected IActivityManager create() { 4125 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4126 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4127 return am; 4128 } 4129 }; 4130 4131 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4132 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4133 IBinder service = ServiceManager.checkService(name); 4134 if (service == null) { 4135 pw.println(" (Service not found)"); 4136 return; 4137 } 4138 TransferPipe tp = null; 4139 try { 4140 pw.flush(); 4141 tp = new TransferPipe(); 4142 tp.setBufferPrefix(" "); 4143 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4144 tp.go(fd, 10000); 4145 } catch (Throwable e) { 4146 if (tp != null) { 4147 tp.kill(); 4148 } 4149 pw.println("Failure dumping service:"); 4150 e.printStackTrace(pw); 4151 } 4152 } 4153 4154 /** 4155 * Request that the system start watching for the calling process to exceed a pss 4156 * size as given here. Once called, the system will look for any occasions where it 4157 * sees the associated process with a larger pss size and, when this happens, automatically 4158 * pull a heap dump from it and allow the user to share the data. Note that this request 4159 * continues running even if the process is killed and restarted. To remove the watch, 4160 * use {@link #clearWatchHeapLimit()}. 4161 * 4162 * <p>This API only work if the calling process has been marked as 4163 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4164 * (userdebug or eng) build.</p> 4165 * 4166 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4167 * handle heap limit reports themselves.</p> 4168 * 4169 * @param pssSize The size in bytes to set the limit at. 4170 */ 4171 public void setWatchHeapLimit(long pssSize) { 4172 try { 4173 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4174 mContext.getPackageName()); 4175 } catch (RemoteException e) { 4176 throw e.rethrowFromSystemServer(); 4177 } 4178 } 4179 4180 /** 4181 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4182 * If your package has an activity handling this action, it will be launched with the 4183 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4184 * match the activty must support this action and a MIME type of "*/*". 4185 */ 4186 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4187 4188 /** 4189 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4190 */ 4191 public void clearWatchHeapLimit() { 4192 try { 4193 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4194 } catch (RemoteException e) { 4195 throw e.rethrowFromSystemServer(); 4196 } 4197 } 4198 4199 /** 4200 * @hide 4201 */ 4202 public void startLockTaskMode(int taskId) { 4203 try { 4204 getService().startLockTaskModeById(taskId); 4205 } catch (RemoteException e) { 4206 throw e.rethrowFromSystemServer(); 4207 } 4208 } 4209 4210 /** 4211 * @hide 4212 */ 4213 public void stopLockTaskMode() { 4214 try { 4215 getService().stopLockTaskMode(); 4216 } catch (RemoteException e) { 4217 throw e.rethrowFromSystemServer(); 4218 } 4219 } 4220 4221 /** 4222 * Return whether currently in lock task mode. When in this mode 4223 * no new tasks can be created or switched to. 4224 * 4225 * @see Activity#startLockTask() 4226 * 4227 * @deprecated Use {@link #getLockTaskModeState} instead. 4228 */ 4229 @Deprecated 4230 public boolean isInLockTaskMode() { 4231 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4232 } 4233 4234 /** 4235 * Return the current state of task locking. The three possible outcomes 4236 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4237 * and {@link #LOCK_TASK_MODE_PINNED}. 4238 * 4239 * @see Activity#startLockTask() 4240 */ 4241 public int getLockTaskModeState() { 4242 try { 4243 return getService().getLockTaskModeState(); 4244 } catch (RemoteException e) { 4245 throw e.rethrowFromSystemServer(); 4246 } 4247 } 4248 4249 /** 4250 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4251 * thread can be a VR thread in a process at a time, and that thread may be subject to 4252 * restrictions on the amount of time it can run. 4253 * 4254 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4255 * method will return to normal operation, and calling this method will do nothing while 4256 * persistent VR mode is enabled. 4257 * 4258 * To reset the VR thread for an application, a tid of 0 can be passed. 4259 * 4260 * @see android.os.Process#myTid() 4261 * @param tid tid of the VR thread 4262 */ 4263 public static void setVrThread(int tid) { 4264 try { 4265 getService().setVrThread(tid); 4266 } catch (RemoteException e) { 4267 // pass 4268 } 4269 } 4270 4271 /** 4272 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4273 * beyond a single process. It requires holding the 4274 * {@link android.Manifest.permission#RESTRICTED_VR_ACCESS} permission. Only one thread can be a 4275 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4276 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4277 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4278 * persistent VR thread loses its new scheduling priority; this method must be called again to 4279 * set the persistent thread. 4280 * 4281 * To reset the persistent VR thread, a tid of 0 can be passed. 4282 * 4283 * @see android.os.Process#myTid() 4284 * @param tid tid of the VR thread 4285 * @hide 4286 */ 4287 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4288 public static void setPersistentVrThread(int tid) { 4289 try { 4290 getService().setPersistentVrThread(tid); 4291 } catch (RemoteException e) { 4292 // pass 4293 } 4294 } 4295 4296 /** 4297 * The AppTask allows you to manage your own application's tasks. 4298 * See {@link android.app.ActivityManager#getAppTasks()} 4299 */ 4300 public static class AppTask { 4301 private IAppTask mAppTaskImpl; 4302 4303 /** @hide */ 4304 public AppTask(IAppTask task) { 4305 mAppTaskImpl = task; 4306 } 4307 4308 /** 4309 * Finishes all activities in this task and removes it from the recent tasks list. 4310 */ 4311 public void finishAndRemoveTask() { 4312 try { 4313 mAppTaskImpl.finishAndRemoveTask(); 4314 } catch (RemoteException e) { 4315 throw e.rethrowFromSystemServer(); 4316 } 4317 } 4318 4319 /** 4320 * Get the RecentTaskInfo associated with this task. 4321 * 4322 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4323 */ 4324 public RecentTaskInfo getTaskInfo() { 4325 try { 4326 return mAppTaskImpl.getTaskInfo(); 4327 } catch (RemoteException e) { 4328 throw e.rethrowFromSystemServer(); 4329 } 4330 } 4331 4332 /** 4333 * Bring this task to the foreground. If it contains activities, they will be 4334 * brought to the foreground with it and their instances re-created if needed. 4335 * If it doesn't contain activities, the root activity of the task will be 4336 * re-launched. 4337 */ 4338 public void moveToFront() { 4339 try { 4340 mAppTaskImpl.moveToFront(); 4341 } catch (RemoteException e) { 4342 throw e.rethrowFromSystemServer(); 4343 } 4344 } 4345 4346 /** 4347 * Start an activity in this task. Brings the task to the foreground. If this task 4348 * is not currently active (that is, its id < 0), then a new activity for the given 4349 * Intent will be launched as the root of the task and the task brought to the 4350 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4351 * an activity to launch in a new task, then a new activity for the given Intent will 4352 * be launched on top of the task and the task brought to the foreground. If this 4353 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4354 * or would otherwise be launched in to a new task, then the activity not launched but 4355 * this task be brought to the foreground and a new intent delivered to the top 4356 * activity if appropriate. 4357 * 4358 * <p>In other words, you generally want to use an Intent here that does not specify 4359 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4360 * and let the system do the right thing.</p> 4361 * 4362 * @param intent The Intent describing the new activity to be launched on the task. 4363 * @param options Optional launch options. 4364 * 4365 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4366 */ 4367 public void startActivity(Context context, Intent intent, Bundle options) { 4368 ActivityThread thread = ActivityThread.currentActivityThread(); 4369 thread.getInstrumentation().execStartActivityFromAppTask(context, 4370 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4371 } 4372 4373 /** 4374 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4375 * Intent of this AppTask. 4376 * 4377 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4378 * be set; otherwise, it will be cleared. 4379 */ 4380 public void setExcludeFromRecents(boolean exclude) { 4381 try { 4382 mAppTaskImpl.setExcludeFromRecents(exclude); 4383 } catch (RemoteException e) { 4384 throw e.rethrowFromSystemServer(); 4385 } 4386 } 4387 } 4388} 4389