ActivityManager.java revision 68278568de7479f9fef31517d799c2c254dd1d37
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 static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 20import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM; 21import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; 22import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 23import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_SECONDARY; 24import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; 25 26import android.Manifest; 27import android.annotation.IntDef; 28import android.annotation.NonNull; 29import android.annotation.Nullable; 30import android.annotation.RequiresPermission; 31import android.annotation.SystemApi; 32import android.annotation.SystemService; 33import android.annotation.TestApi; 34import android.content.ComponentName; 35import android.content.Context; 36import android.content.Intent; 37import android.content.UriPermission; 38import android.content.pm.ActivityInfo; 39import android.content.pm.ApplicationInfo; 40import android.content.pm.ConfigurationInfo; 41import android.content.pm.IPackageDataObserver; 42import android.content.pm.PackageManager; 43import android.content.pm.ParceledListSlice; 44import android.content.pm.UserInfo; 45import android.content.res.Configuration; 46import android.content.res.Resources; 47import android.graphics.Bitmap; 48import android.graphics.Canvas; 49import android.graphics.Color; 50import android.graphics.GraphicBuffer; 51import android.graphics.Matrix; 52import android.graphics.Point; 53import android.graphics.Rect; 54import android.os.BatteryStats; 55import android.os.Build; 56import android.os.Build.VERSION_CODES; 57import android.os.Bundle; 58import android.os.Debug; 59import android.os.Handler; 60import android.os.IBinder; 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 com.android.internal.app.procstats.ProcessStats; 75import com.android.internal.os.RoSystemProperties; 76import com.android.internal.os.TransferPipe; 77import com.android.internal.util.FastPrintWriter; 78import com.android.server.LocalServices; 79 80import org.xmlpull.v1.XmlSerializer; 81 82import java.io.FileDescriptor; 83import java.io.FileOutputStream; 84import java.io.IOException; 85import java.io.PrintWriter; 86import java.lang.annotation.Retention; 87import java.lang.annotation.RetentionPolicy; 88import java.util.ArrayList; 89import java.util.List; 90 91/** 92 * <p> 93 * This class gives information about, and interacts 94 * with, activities, services, and the containing 95 * process. 96 * </p> 97 * 98 * <p> 99 * A number of the methods in this class are for 100 * debugging or informational purposes and they should 101 * not be used to affect any runtime behavior of 102 * your app. These methods are called out as such in 103 * the method level documentation. 104 * </p> 105 * 106 *<p> 107 * Most application developers should not have the need to 108 * use this class, most of whose methods are for specialized 109 * use cases. However, a few methods are more broadly applicable. 110 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 111 * enables your app to detect whether it is running on a low-memory device, 112 * and behave accordingly. 113 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 114 * is for apps with reset-data functionality. 115 * </p> 116 * 117 * <p> 118 * In some special use cases, where an app interacts with 119 * its Task stack, the app may use the 120 * {@link android.app.ActivityManager.AppTask} and 121 * {@link android.app.ActivityManager.RecentTaskInfo} inner 122 * classes. However, in general, the methods in this class should 123 * be used for testing and debugging purposes only. 124 * </p> 125 */ 126@SystemService(Context.ACTIVITY_SERVICE) 127public class ActivityManager { 128 private static String TAG = "ActivityManager"; 129 130 private static int gMaxRecentTasks = -1; 131 132 private final Context mContext; 133 134 private static volatile boolean sSystemReady = false; 135 136 137 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 138 private static final int LAST_START_FATAL_ERROR_CODE = -1; 139 private static final int FIRST_START_SUCCESS_CODE = 0; 140 private static final int LAST_START_SUCCESS_CODE = 99; 141 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 142 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 143 144 static final class UidObserver extends IUidObserver.Stub { 145 final OnUidImportanceListener mListener; 146 final Context mContext; 147 148 UidObserver(OnUidImportanceListener listener, Context clientContext) { 149 mListener = listener; 150 mContext = clientContext; 151 } 152 153 @Override 154 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 155 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 156 procState, mContext)); 157 } 158 159 @Override 160 public void onUidGone(int uid, boolean disabled) { 161 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 162 } 163 164 @Override 165 public void onUidActive(int uid) { 166 } 167 168 @Override 169 public void onUidIdle(int uid, boolean disabled) { 170 } 171 172 @Override public void onUidCachedChanged(int uid, boolean cached) { 173 } 174 } 175 176 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 177 178 /** 179 * Defines acceptable types of bugreports. 180 * @hide 181 */ 182 @Retention(RetentionPolicy.SOURCE) 183 @IntDef({ 184 BUGREPORT_OPTION_FULL, 185 BUGREPORT_OPTION_INTERACTIVE, 186 BUGREPORT_OPTION_REMOTE, 187 BUGREPORT_OPTION_WEAR, 188 BUGREPORT_OPTION_TELEPHONY 189 }) 190 public @interface BugreportMode {} 191 /** 192 * Takes a bugreport without user interference (and hence causing less 193 * interference to the system), but includes all sections. 194 * @hide 195 */ 196 public static final int BUGREPORT_OPTION_FULL = 0; 197 /** 198 * Allows user to monitor progress and enter additional data; might not include all 199 * sections. 200 * @hide 201 */ 202 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 203 /** 204 * Takes a bugreport requested remotely by administrator of the Device Owner app, 205 * not the device's user. 206 * @hide 207 */ 208 public static final int BUGREPORT_OPTION_REMOTE = 2; 209 /** 210 * Takes a bugreport on a wearable device. 211 * @hide 212 */ 213 public static final int BUGREPORT_OPTION_WEAR = 3; 214 215 /** 216 * Takes a lightweight version of bugreport that only includes a few, urgent sections 217 * used to report telephony bugs. 218 * @hide 219 */ 220 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 221 222 /** 223 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 224 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 225 * uninstalled in lieu of the declaring one. The package named here must be 226 * signed with the same certificate as the one declaring the {@code <meta-data>}. 227 */ 228 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 229 230 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 231 // result is properly categorized. 232 233 /** 234 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 235 * @hide 236 */ 237 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 238 239 /** 240 * Result for IActivityManager.startVoiceActivity: active session does not match 241 * the requesting token. 242 * @hide 243 */ 244 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 245 246 /** 247 * Result for IActivityManager.startActivity: trying to start a background user 248 * activity that shouldn't be displayed for all users. 249 * @hide 250 */ 251 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 252 253 /** 254 * Result for IActivityManager.startActivity: trying to start an activity under voice 255 * control when that activity does not support the VOICE category. 256 * @hide 257 */ 258 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 259 260 /** 261 * Result for IActivityManager.startActivity: an error where the 262 * start had to be canceled. 263 * @hide 264 */ 265 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 266 267 /** 268 * Result for IActivityManager.startActivity: an error where the 269 * thing being started is not an activity. 270 * @hide 271 */ 272 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 273 274 /** 275 * Result for IActivityManager.startActivity: an error where the 276 * caller does not have permission to start the activity. 277 * @hide 278 */ 279 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 280 281 /** 282 * Result for IActivityManager.startActivity: an error where the 283 * caller has requested both to forward a result and to receive 284 * a result. 285 * @hide 286 */ 287 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 288 289 /** 290 * Result for IActivityManager.startActivity: an error where the 291 * requested class is not found. 292 * @hide 293 */ 294 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 295 296 /** 297 * Result for IActivityManager.startActivity: an error where the 298 * given Intent could not be resolved to an activity. 299 * @hide 300 */ 301 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 302 303 /** 304 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 305 * @hide 306 */ 307 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 308 309 /** 310 * Result for IActivityManager.startAssistantActivity: active session does not match 311 * the requesting token. 312 * @hide 313 */ 314 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 315 316 /** 317 * Result for IActivityManaqer.startActivity: the activity was started 318 * successfully as normal. 319 * @hide 320 */ 321 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 322 323 /** 324 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 325 * be executed if it is the recipient, and that is indeed the case. 326 * @hide 327 */ 328 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 329 330 /** 331 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 332 * a task was simply brought to the foreground. 333 * @hide 334 */ 335 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 336 337 /** 338 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 339 * the given Intent was given to the existing top activity. 340 * @hide 341 */ 342 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 343 344 /** 345 * Result for IActivityManaqer.startActivity: request was canceled because 346 * app switches are temporarily canceled to ensure the user's last request 347 * (such as pressing home) is performed. 348 * @hide 349 */ 350 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 351 352 /** 353 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 354 * while in Lock Task Mode. 355 * @hide 356 */ 357 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 358 FIRST_START_NON_FATAL_ERROR_CODE + 1; 359 360 /** 361 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 362 * externally. 363 * @hide 364 */ 365 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 366 367 /** 368 * Flag for IActivityManaqer.startActivity: do special start mode where 369 * a new activity is launched only if it is needed. 370 * @hide 371 */ 372 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 373 374 /** 375 * Flag for IActivityManaqer.startActivity: launch the app for 376 * debugging. 377 * @hide 378 */ 379 public static final int START_FLAG_DEBUG = 1<<1; 380 381 /** 382 * Flag for IActivityManaqer.startActivity: launch the app for 383 * allocation tracking. 384 * @hide 385 */ 386 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 387 388 /** 389 * Flag for IActivityManaqer.startActivity: launch the app with 390 * native debugging support. 391 * @hide 392 */ 393 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 394 395 /** 396 * Result for IActivityManaqer.broadcastIntent: success! 397 * @hide 398 */ 399 public static final int BROADCAST_SUCCESS = 0; 400 401 /** 402 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 403 * a sticky intent without appropriate permission. 404 * @hide 405 */ 406 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 407 408 /** 409 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 410 * to a stopped user. Fail. 411 * @hide 412 */ 413 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 414 415 /** 416 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 417 * for a sendBroadcast operation. 418 * @hide 419 */ 420 public static final int INTENT_SENDER_BROADCAST = 1; 421 422 /** 423 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 424 * for a startActivity operation. 425 * @hide 426 */ 427 public static final int INTENT_SENDER_ACTIVITY = 2; 428 429 /** 430 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 431 * for an activity result operation. 432 * @hide 433 */ 434 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 435 436 /** 437 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 438 * for a startService operation. 439 * @hide 440 */ 441 public static final int INTENT_SENDER_SERVICE = 4; 442 443 /** 444 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 445 * for a startForegroundService operation. 446 * @hide 447 */ 448 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 449 450 /** @hide User operation call: success! */ 451 public static final int USER_OP_SUCCESS = 0; 452 453 /** @hide User operation call: given user id is not known. */ 454 public static final int USER_OP_UNKNOWN_USER = -1; 455 456 /** @hide User operation call: given user id is the current user, can't be stopped. */ 457 public static final int USER_OP_IS_CURRENT = -2; 458 459 /** @hide User operation call: system user can't be stopped. */ 460 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 461 462 /** @hide User operation call: one of related users cannot be stopped. */ 463 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 464 465 /** @hide Not a real process state. */ 466 public static final int PROCESS_STATE_UNKNOWN = -1; 467 468 /** @hide Process is a persistent system process. */ 469 public static final int PROCESS_STATE_PERSISTENT = 0; 470 471 /** @hide Process is a persistent system process and is doing UI. */ 472 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 473 474 /** @hide Process is hosting the current top activities. Note that this covers 475 * all activities that are visible to the user. */ 476 public static final int PROCESS_STATE_TOP = 2; 477 478 /** @hide Process is hosting a foreground service due to a system binding. */ 479 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 480 481 /** @hide Process is hosting a foreground service. */ 482 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 483 484 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 485 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 486 487 /** @hide Process is important to the user, and something they are aware of. */ 488 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 489 490 /** @hide Process is important to the user, but not something they are aware of. */ 491 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 492 493 /** @hide Process is in the background transient so we will try to keep running. */ 494 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 495 496 /** @hide Process is in the background running a backup/restore operation. */ 497 public static final int PROCESS_STATE_BACKUP = 9; 498 499 /** @hide Process is in the background, but it can't restore its state so we want 500 * to try to avoid killing it. */ 501 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 502 503 /** @hide Process is in the background running a service. Unlike oom_adj, this level 504 * is used for both the normal running in background state and the executing 505 * operations state. */ 506 public static final int PROCESS_STATE_SERVICE = 11; 507 508 /** @hide Process is in the background running a receiver. Note that from the 509 * perspective of oom_adj receivers run at a higher foreground level, but for our 510 * prioritization here that is not necessary and putting them below services means 511 * many fewer changes in some process states as they receive broadcasts. */ 512 public static final int PROCESS_STATE_RECEIVER = 12; 513 514 /** @hide Process is in the background but hosts the home activity. */ 515 public static final int PROCESS_STATE_HOME = 13; 516 517 /** @hide Process is in the background but hosts the last shown activity. */ 518 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 519 520 /** @hide Process is being cached for later use and contains activities. */ 521 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 522 523 /** @hide Process is being cached for later use and is a client of another cached 524 * process that contains activities. */ 525 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 526 527 /** @hide Process is being cached for later use and is empty. */ 528 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 529 530 /** @hide Process does not exist. */ 531 public static final int PROCESS_STATE_NONEXISTENT = 18; 532 533 /** @hide The lowest process state number */ 534 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 535 536 /** @hide The highest process state number */ 537 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 538 539 /** @hide Should this process state be considered a background state? */ 540 public static final boolean isProcStateBackground(int procState) { 541 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 542 } 543 544 /** @hide requestType for assist context: only basic information. */ 545 public static final int ASSIST_CONTEXT_BASIC = 0; 546 547 /** @hide requestType for assist context: generate full AssistStructure. */ 548 public static final int ASSIST_CONTEXT_FULL = 1; 549 550 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 551 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 552 553 /** @hide Flag for registerUidObserver: report changes in process state. */ 554 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 555 556 /** @hide Flag for registerUidObserver: report uid gone. */ 557 public static final int UID_OBSERVER_GONE = 1<<1; 558 559 /** @hide Flag for registerUidObserver: report uid has become idle. */ 560 public static final int UID_OBSERVER_IDLE = 1<<2; 561 562 /** @hide Flag for registerUidObserver: report uid has become active. */ 563 public static final int UID_OBSERVER_ACTIVE = 1<<3; 564 565 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 566 public static final int UID_OBSERVER_CACHED = 1<<4; 567 568 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 569 public static final int APP_START_MODE_NORMAL = 0; 570 571 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 572 public static final int APP_START_MODE_DELAYED = 1; 573 574 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 575 * rigid errors (throwing exception). */ 576 public static final int APP_START_MODE_DELAYED_RIGID = 2; 577 578 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 579 * launches; this is the mode for ephemeral apps. */ 580 public static final int APP_START_MODE_DISABLED = 3; 581 582 /** 583 * Lock task mode is not active. 584 */ 585 public static final int LOCK_TASK_MODE_NONE = 0; 586 587 /** 588 * Full lock task mode is active. 589 */ 590 public static final int LOCK_TASK_MODE_LOCKED = 1; 591 592 /** 593 * App pinning mode is active. 594 */ 595 public static final int LOCK_TASK_MODE_PINNED = 2; 596 597 Point mAppTaskThumbnailSize; 598 599 /*package*/ ActivityManager(Context context, Handler handler) { 600 mContext = context; 601 } 602 603 /** 604 * Returns whether the launch was successful. 605 * @hide 606 */ 607 public static final boolean isStartResultSuccessful(int result) { 608 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 609 } 610 611 /** 612 * Returns whether the launch result was a fatal error. 613 * @hide 614 */ 615 public static final boolean isStartResultFatalError(int result) { 616 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 617 } 618 619 /** 620 * Screen compatibility mode: the application most always run in 621 * compatibility mode. 622 * @hide 623 */ 624 public static final int COMPAT_MODE_ALWAYS = -1; 625 626 /** 627 * Screen compatibility mode: the application can never run in 628 * compatibility mode. 629 * @hide 630 */ 631 public static final int COMPAT_MODE_NEVER = -2; 632 633 /** 634 * Screen compatibility mode: unknown. 635 * @hide 636 */ 637 public static final int COMPAT_MODE_UNKNOWN = -3; 638 639 /** 640 * Screen compatibility mode: the application currently has compatibility 641 * mode disabled. 642 * @hide 643 */ 644 public static final int COMPAT_MODE_DISABLED = 0; 645 646 /** 647 * Screen compatibility mode: the application currently has compatibility 648 * mode enabled. 649 * @hide 650 */ 651 public static final int COMPAT_MODE_ENABLED = 1; 652 653 /** 654 * Screen compatibility mode: request to toggle the application's 655 * compatibility mode. 656 * @hide 657 */ 658 public static final int COMPAT_MODE_TOGGLE = 2; 659 660 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 661 SystemProperties.getBoolean("debug.force_low_ram", false); 662 663 /** @hide */ 664 @TestApi 665 public static class StackId { 666 667 private StackId() { 668 } 669 670 /** Invalid stack ID. */ 671 public static final int INVALID_STACK_ID = -1; 672 673 /** First static stack ID. 674 * @hide */ 675 private static final int FIRST_STATIC_STACK_ID = 0; 676 677 /** ID of stack where fullscreen activities are normally launched into. */ 678 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 679 680 /** ID of stack where freeform/resized activities are normally launched into. */ 681 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 682 683 /** ID of stack that occupies a dedicated region of the screen. */ 684 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 685 686 /** ID of stack that always on top (always visible) when it exist. */ 687 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 688 689 /** Last static stack stack ID. 690 * @hide */ 691 private static final int LAST_STATIC_STACK_ID = PINNED_STACK_ID; 692 693 /** Start of ID range used by stacks that are created dynamically. 694 * @hide */ 695 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 696 697 // TODO: Figure-out a way to remove this. 698 /** @hide */ 699 public static boolean isStaticStack(int stackId) { 700 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 701 } 702 703 // TODO: It seems this mostly means a stack on a secondary display now. Need to see if 704 // there are other meanings. If not why not just use information from the display? 705 /** @hide */ 706 public static boolean isDynamicStack(int stackId) { 707 return stackId >= FIRST_DYNAMIC_STACK_ID; 708 } 709 710 /** 711 * Returns true if we try to maintain focus in the current stack when the top activity 712 * finishes. 713 * @hide 714 */ 715 // TODO: Figure-out a way to remove. Probably isn't needed in the new world... 716 public static boolean keepFocusInStackIfPossible(int stackId) { 717 return stackId == FREEFORM_WORKSPACE_STACK_ID 718 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 719 } 720 721 /** 722 * Returns true if the windows of tasks being moved to the target stack from the source 723 * stack should be replaced, meaning that window manager will keep the old window around 724 * until the new is ready. 725 * @hide 726 */ 727 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 728 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 729 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 730 } 731 732 /** 733 * Returns true if the top task in the task is allowed to return home when finished and 734 * there are other tasks in the stack. 735 * @hide 736 */ 737 public static boolean allowTopTaskToReturnHome(int stackId) { 738 return stackId != PINNED_STACK_ID; 739 } 740 741 /** 742 * Returns true if the stack should be resized to match the bounds specified by 743 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 744 * @hide 745 */ 746 public static boolean resizeStackWithLaunchBounds(int stackId) { 747 return stackId == PINNED_STACK_ID; 748 } 749 750 /** 751 * Returns true if a window from the specified stack with {@param stackId} are normally 752 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 753 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 754 * etc. 755 * @hide 756 */ 757 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 758 public static boolean normallyFullscreenWindows(int stackId) { 759 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 760 && stackId != DOCKED_STACK_ID; 761 } 762 763 /** Returns the stack id for the input windowing mode. 764 * @hide */ 765 // TODO: To be removed once we are not using stack id for stuff... 766 public static int getStackIdForWindowingMode(int windowingMode) { 767 switch (windowingMode) { 768 case WINDOWING_MODE_PINNED: return PINNED_STACK_ID; 769 case WINDOWING_MODE_FREEFORM: return FREEFORM_WORKSPACE_STACK_ID; 770 case WINDOWING_MODE_SPLIT_SCREEN_PRIMARY: return DOCKED_STACK_ID; 771 case WINDOWING_MODE_SPLIT_SCREEN_SECONDARY: return FULLSCREEN_WORKSPACE_STACK_ID; 772 case WINDOWING_MODE_FULLSCREEN: return FULLSCREEN_WORKSPACE_STACK_ID; 773 default: return INVALID_STACK_ID; 774 } 775 } 776 777 /** Returns the windowing mode that should be used for this input stack id. 778 * @hide */ 779 // TODO: To be removed once we are not using stack id for stuff... 780 public static int getWindowingModeForStackId(int stackId, boolean inSplitScreenMode) { 781 final int windowingMode; 782 switch (stackId) { 783 case FULLSCREEN_WORKSPACE_STACK_ID: 784 windowingMode = inSplitScreenMode 785 ? WINDOWING_MODE_SPLIT_SCREEN_SECONDARY : WINDOWING_MODE_FULLSCREEN; 786 break; 787 case PINNED_STACK_ID: 788 windowingMode = WINDOWING_MODE_PINNED; 789 break; 790 case DOCKED_STACK_ID: 791 windowingMode = WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 792 break; 793 case FREEFORM_WORKSPACE_STACK_ID: 794 windowingMode = WINDOWING_MODE_FREEFORM; 795 break; 796 default : 797 windowingMode = WINDOWING_MODE_UNDEFINED; 798 } 799 return windowingMode; 800 } 801 } 802 803 /** 804 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 805 * specifies the position of the created docked stack at the top half of the screen if 806 * in portrait mode or at the left half of the screen if in landscape mode. 807 * @hide 808 */ 809 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 810 811 /** 812 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 813 * specifies the position of the created docked stack at the bottom half of the screen if 814 * in portrait mode or at the right half of the screen if in landscape mode. 815 * @hide 816 */ 817 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 818 819 /** 820 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 821 * that the resize doesn't need to preserve the window, and can be skipped if bounds 822 * is unchanged. This mode is used by window manager in most cases. 823 * @hide 824 */ 825 public static final int RESIZE_MODE_SYSTEM = 0; 826 827 /** 828 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 829 * that the resize should preserve the window if possible. 830 * @hide 831 */ 832 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 833 834 /** 835 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 836 * that the resize should be performed even if the bounds appears unchanged. 837 * @hide 838 */ 839 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 840 841 /** 842 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 843 * manager during a screen rotation. 844 * @hide 845 */ 846 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 847 848 /** 849 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 850 * resize is due to a drag action. 851 * @hide 852 */ 853 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 854 855 /** 856 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 857 * that the resize should preserve the window if possible, and should not be skipped 858 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 859 * is ending. 860 * @hide 861 */ 862 public static final int RESIZE_MODE_USER_FORCED = 863 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 864 865 /** @hide */ 866 public int getFrontActivityScreenCompatMode() { 867 try { 868 return getService().getFrontActivityScreenCompatMode(); 869 } catch (RemoteException e) { 870 throw e.rethrowFromSystemServer(); 871 } 872 } 873 874 /** @hide */ 875 public void setFrontActivityScreenCompatMode(int mode) { 876 try { 877 getService().setFrontActivityScreenCompatMode(mode); 878 } catch (RemoteException e) { 879 throw e.rethrowFromSystemServer(); 880 } 881 } 882 883 /** @hide */ 884 public int getPackageScreenCompatMode(String packageName) { 885 try { 886 return getService().getPackageScreenCompatMode(packageName); 887 } catch (RemoteException e) { 888 throw e.rethrowFromSystemServer(); 889 } 890 } 891 892 /** @hide */ 893 public void setPackageScreenCompatMode(String packageName, int mode) { 894 try { 895 getService().setPackageScreenCompatMode(packageName, mode); 896 } catch (RemoteException e) { 897 throw e.rethrowFromSystemServer(); 898 } 899 } 900 901 /** @hide */ 902 public boolean getPackageAskScreenCompat(String packageName) { 903 try { 904 return getService().getPackageAskScreenCompat(packageName); 905 } catch (RemoteException e) { 906 throw e.rethrowFromSystemServer(); 907 } 908 } 909 910 /** @hide */ 911 public void setPackageAskScreenCompat(String packageName, boolean ask) { 912 try { 913 getService().setPackageAskScreenCompat(packageName, ask); 914 } catch (RemoteException e) { 915 throw e.rethrowFromSystemServer(); 916 } 917 } 918 919 /** 920 * Return the approximate per-application memory class of the current 921 * device. This gives you an idea of how hard a memory limit you should 922 * impose on your application to let the overall system work best. The 923 * returned value is in megabytes; the baseline Android memory class is 924 * 16 (which happens to be the Java heap limit of those devices); some 925 * device with more memory may return 24 or even higher numbers. 926 */ 927 public int getMemoryClass() { 928 return staticGetMemoryClass(); 929 } 930 931 /** @hide */ 932 static public int staticGetMemoryClass() { 933 // Really brain dead right now -- just take this from the configured 934 // vm heap size, and assume it is in megabytes and thus ends with "m". 935 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 936 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 937 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 938 } 939 return staticGetLargeMemoryClass(); 940 } 941 942 /** 943 * Return the approximate per-application memory class of the current 944 * device when an application is running with a large heap. This is the 945 * space available for memory-intensive applications; most applications 946 * should not need this amount of memory, and should instead stay with the 947 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 948 * This may be the same size as {@link #getMemoryClass()} on memory 949 * constrained devices, or it may be significantly larger on devices with 950 * a large amount of available RAM. 951 * 952 * <p>The is the size of the application's Dalvik heap if it has 953 * specified <code>android:largeHeap="true"</code> in its manifest. 954 */ 955 public int getLargeMemoryClass() { 956 return staticGetLargeMemoryClass(); 957 } 958 959 /** @hide */ 960 static public int staticGetLargeMemoryClass() { 961 // Really brain dead right now -- just take this from the configured 962 // vm heap size, and assume it is in megabytes and thus ends with "m". 963 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 964 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 965 } 966 967 /** 968 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 969 * is ultimately up to the device configuration, but currently it generally means 970 * something in the class of a 512MB device with about a 800x480 or less screen. 971 * This is mostly intended to be used by apps to determine whether they should turn 972 * off certain features that require more RAM. 973 */ 974 public boolean isLowRamDevice() { 975 return isLowRamDeviceStatic(); 976 } 977 978 /** @hide */ 979 public static boolean isLowRamDeviceStatic() { 980 return RoSystemProperties.CONFIG_LOW_RAM || 981 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 982 } 983 984 /** 985 * Returns true if this is a small battery device. Exactly whether a device is considered to be 986 * small battery is ultimately up to the device configuration, but currently it generally means 987 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 988 * to determine whether certain features should be altered to account for a drastically smaller 989 * battery. 990 * @hide 991 */ 992 public static boolean isSmallBatteryDevice() { 993 return RoSystemProperties.CONFIG_SMALL_BATTERY; 994 } 995 996 /** 997 * Used by persistent processes to determine if they are running on a 998 * higher-end device so should be okay using hardware drawing acceleration 999 * (which tends to consume a lot more RAM). 1000 * @hide 1001 */ 1002 static public boolean isHighEndGfx() { 1003 return !isLowRamDeviceStatic() && 1004 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1005 } 1006 1007 /** 1008 * Return the maximum number of recents entries that we will maintain and show. 1009 * @hide 1010 */ 1011 static public int getMaxRecentTasksStatic() { 1012 if (gMaxRecentTasks < 0) { 1013 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1014 } 1015 return gMaxRecentTasks; 1016 } 1017 1018 /** 1019 * Return the default limit on the number of recents that an app can make. 1020 * @hide 1021 */ 1022 static public int getDefaultAppRecentsLimitStatic() { 1023 return getMaxRecentTasksStatic() / 6; 1024 } 1025 1026 /** 1027 * Return the maximum limit on the number of recents that an app can make. 1028 * @hide 1029 */ 1030 static public int getMaxAppRecentsLimitStatic() { 1031 return getMaxRecentTasksStatic() / 2; 1032 } 1033 1034 /** 1035 * Returns true if the system supports at least one form of multi-window. 1036 * E.g. freeform, split-screen, picture-in-picture. 1037 * @hide 1038 */ 1039 @TestApi 1040 static public boolean supportsMultiWindow(Context context) { 1041 // On watches, multi-window is used to present essential system UI, and thus it must be 1042 // supported regardless of device memory characteristics. 1043 boolean isWatch = context.getPackageManager().hasSystemFeature( 1044 PackageManager.FEATURE_WATCH); 1045 return (!isLowRamDeviceStatic() || isWatch) 1046 && Resources.getSystem().getBoolean( 1047 com.android.internal.R.bool.config_supportsMultiWindow); 1048 } 1049 1050 /** 1051 * Returns true if the system supports split screen multi-window. 1052 * @hide 1053 */ 1054 @TestApi 1055 static public boolean supportsSplitScreenMultiWindow(Context context) { 1056 return supportsMultiWindow(context) 1057 && Resources.getSystem().getBoolean( 1058 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1059 } 1060 1061 /** @removed */ 1062 @Deprecated 1063 public static int getMaxNumPictureInPictureActions() { 1064 return 3; 1065 } 1066 1067 /** 1068 * Information you can set and retrieve about the current activity within the recent task list. 1069 */ 1070 public static class TaskDescription implements Parcelable { 1071 /** @hide */ 1072 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1073 private static final String ATTR_TASKDESCRIPTIONLABEL = 1074 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1075 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1076 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1077 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1078 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1079 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1080 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1081 1082 private String mLabel; 1083 private Bitmap mIcon; 1084 private String mIconFilename; 1085 private int mColorPrimary; 1086 private int mColorBackground; 1087 private int mStatusBarColor; 1088 private int mNavigationBarColor; 1089 1090 /** 1091 * Creates the TaskDescription to the specified values. 1092 * 1093 * @param label A label and description of the current state of this task. 1094 * @param icon An icon that represents the current state of this task. 1095 * @param colorPrimary A color to override the theme's primary color. This color must be 1096 * opaque. 1097 */ 1098 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1099 this(label, icon, null, colorPrimary, 0, 0, 0); 1100 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1101 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1102 } 1103 } 1104 1105 /** 1106 * Creates the TaskDescription to the specified values. 1107 * 1108 * @param label A label and description of the current state of this activity. 1109 * @param icon An icon that represents the current state of this activity. 1110 */ 1111 public TaskDescription(String label, Bitmap icon) { 1112 this(label, icon, null, 0, 0, 0, 0); 1113 } 1114 1115 /** 1116 * Creates the TaskDescription to the specified values. 1117 * 1118 * @param label A label and description of the current state of this activity. 1119 */ 1120 public TaskDescription(String label) { 1121 this(label, null, null, 0, 0, 0, 0); 1122 } 1123 1124 /** 1125 * Creates an empty TaskDescription. 1126 */ 1127 public TaskDescription() { 1128 this(null, null, null, 0, 0, 0, 0); 1129 } 1130 1131 /** @hide */ 1132 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1133 int colorBackground, int statusBarColor, int navigationBarColor) { 1134 mLabel = label; 1135 mIcon = icon; 1136 mIconFilename = iconFilename; 1137 mColorPrimary = colorPrimary; 1138 mColorBackground = colorBackground; 1139 mStatusBarColor = statusBarColor; 1140 mNavigationBarColor = navigationBarColor; 1141 } 1142 1143 /** 1144 * Creates a copy of another TaskDescription. 1145 */ 1146 public TaskDescription(TaskDescription td) { 1147 copyFrom(td); 1148 } 1149 1150 /** 1151 * Copies this the values from another TaskDescription. 1152 * @hide 1153 */ 1154 public void copyFrom(TaskDescription other) { 1155 mLabel = other.mLabel; 1156 mIcon = other.mIcon; 1157 mIconFilename = other.mIconFilename; 1158 mColorPrimary = other.mColorPrimary; 1159 mColorBackground = other.mColorBackground; 1160 mStatusBarColor = other.mStatusBarColor; 1161 mNavigationBarColor = other.mNavigationBarColor; 1162 } 1163 1164 /** 1165 * Copies this the values from another TaskDescription, but preserves the hidden fields 1166 * if they weren't set on {@code other} 1167 * @hide 1168 */ 1169 public void copyFromPreserveHiddenFields(TaskDescription other) { 1170 mLabel = other.mLabel; 1171 mIcon = other.mIcon; 1172 mIconFilename = other.mIconFilename; 1173 mColorPrimary = other.mColorPrimary; 1174 if (other.mColorBackground != 0) { 1175 mColorBackground = other.mColorBackground; 1176 } 1177 if (other.mStatusBarColor != 0) { 1178 mStatusBarColor = other.mStatusBarColor; 1179 } 1180 if (other.mNavigationBarColor != 0) { 1181 mNavigationBarColor = other.mNavigationBarColor; 1182 } 1183 } 1184 1185 private TaskDescription(Parcel source) { 1186 readFromParcel(source); 1187 } 1188 1189 /** 1190 * Sets the label for this task description. 1191 * @hide 1192 */ 1193 public void setLabel(String label) { 1194 mLabel = label; 1195 } 1196 1197 /** 1198 * Sets the primary color for this task description. 1199 * @hide 1200 */ 1201 public void setPrimaryColor(int primaryColor) { 1202 // Ensure that the given color is valid 1203 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1204 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1205 } 1206 mColorPrimary = primaryColor; 1207 } 1208 1209 /** 1210 * Sets the background color for this task description. 1211 * @hide 1212 */ 1213 public void setBackgroundColor(int backgroundColor) { 1214 // Ensure that the given color is valid 1215 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1216 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1217 } 1218 mColorBackground = backgroundColor; 1219 } 1220 1221 /** 1222 * @hide 1223 */ 1224 public void setStatusBarColor(int statusBarColor) { 1225 mStatusBarColor = statusBarColor; 1226 } 1227 1228 /** 1229 * @hide 1230 */ 1231 public void setNavigationBarColor(int navigationBarColor) { 1232 mNavigationBarColor = navigationBarColor; 1233 } 1234 1235 /** 1236 * Sets the icon for this task description. 1237 * @hide 1238 */ 1239 public void setIcon(Bitmap icon) { 1240 mIcon = icon; 1241 } 1242 1243 /** 1244 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1245 * bitmap. 1246 * @hide 1247 */ 1248 public void setIconFilename(String iconFilename) { 1249 mIconFilename = iconFilename; 1250 mIcon = null; 1251 } 1252 1253 /** 1254 * @return The label and description of the current state of this task. 1255 */ 1256 public String getLabel() { 1257 return mLabel; 1258 } 1259 1260 /** 1261 * @return The icon that represents the current state of this task. 1262 */ 1263 public Bitmap getIcon() { 1264 if (mIcon != null) { 1265 return mIcon; 1266 } 1267 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1268 } 1269 1270 /** @hide */ 1271 public String getIconFilename() { 1272 return mIconFilename; 1273 } 1274 1275 /** @hide */ 1276 public Bitmap getInMemoryIcon() { 1277 return mIcon; 1278 } 1279 1280 /** @hide */ 1281 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1282 if (iconFilename != null) { 1283 try { 1284 return getService().getTaskDescriptionIcon(iconFilename, 1285 userId); 1286 } catch (RemoteException e) { 1287 throw e.rethrowFromSystemServer(); 1288 } 1289 } 1290 return null; 1291 } 1292 1293 /** 1294 * @return The color override on the theme's primary color. 1295 */ 1296 public int getPrimaryColor() { 1297 return mColorPrimary; 1298 } 1299 1300 /** 1301 * @return The background color. 1302 * @hide 1303 */ 1304 public int getBackgroundColor() { 1305 return mColorBackground; 1306 } 1307 1308 /** 1309 * @hide 1310 */ 1311 public int getStatusBarColor() { 1312 return mStatusBarColor; 1313 } 1314 1315 /** 1316 * @hide 1317 */ 1318 public int getNavigationBarColor() { 1319 return mNavigationBarColor; 1320 } 1321 1322 /** @hide */ 1323 public void saveToXml(XmlSerializer out) throws IOException { 1324 if (mLabel != null) { 1325 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1326 } 1327 if (mColorPrimary != 0) { 1328 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1329 Integer.toHexString(mColorPrimary)); 1330 } 1331 if (mColorBackground != 0) { 1332 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1333 Integer.toHexString(mColorBackground)); 1334 } 1335 if (mIconFilename != null) { 1336 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1337 } 1338 } 1339 1340 /** @hide */ 1341 public void restoreFromXml(String attrName, String attrValue) { 1342 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1343 setLabel(attrValue); 1344 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1345 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1346 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1347 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1348 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1349 setIconFilename(attrValue); 1350 } 1351 } 1352 1353 @Override 1354 public int describeContents() { 1355 return 0; 1356 } 1357 1358 @Override 1359 public void writeToParcel(Parcel dest, int flags) { 1360 if (mLabel == null) { 1361 dest.writeInt(0); 1362 } else { 1363 dest.writeInt(1); 1364 dest.writeString(mLabel); 1365 } 1366 if (mIcon == null) { 1367 dest.writeInt(0); 1368 } else { 1369 dest.writeInt(1); 1370 mIcon.writeToParcel(dest, 0); 1371 } 1372 dest.writeInt(mColorPrimary); 1373 dest.writeInt(mColorBackground); 1374 dest.writeInt(mStatusBarColor); 1375 dest.writeInt(mNavigationBarColor); 1376 if (mIconFilename == null) { 1377 dest.writeInt(0); 1378 } else { 1379 dest.writeInt(1); 1380 dest.writeString(mIconFilename); 1381 } 1382 } 1383 1384 public void readFromParcel(Parcel source) { 1385 mLabel = source.readInt() > 0 ? source.readString() : null; 1386 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1387 mColorPrimary = source.readInt(); 1388 mColorBackground = source.readInt(); 1389 mStatusBarColor = source.readInt(); 1390 mNavigationBarColor = source.readInt(); 1391 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1392 } 1393 1394 public static final Creator<TaskDescription> CREATOR 1395 = new Creator<TaskDescription>() { 1396 public TaskDescription createFromParcel(Parcel source) { 1397 return new TaskDescription(source); 1398 } 1399 public TaskDescription[] newArray(int size) { 1400 return new TaskDescription[size]; 1401 } 1402 }; 1403 1404 @Override 1405 public String toString() { 1406 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1407 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1408 " colorBackground: " + mColorBackground + 1409 " statusBarColor: " + mColorBackground + 1410 " navigationBarColor: " + mNavigationBarColor; 1411 } 1412 } 1413 1414 /** 1415 * Information you can retrieve about tasks that the user has most recently 1416 * started or visited. 1417 */ 1418 public static class RecentTaskInfo implements Parcelable { 1419 /** 1420 * If this task is currently running, this is the identifier for it. 1421 * If it is not running, this will be -1. 1422 */ 1423 public int id; 1424 1425 /** 1426 * The true identifier of this task, valid even if it is not running. 1427 */ 1428 public int persistentId; 1429 1430 /** 1431 * The original Intent used to launch the task. You can use this 1432 * Intent to re-launch the task (if it is no longer running) or bring 1433 * the current task to the front. 1434 */ 1435 public Intent baseIntent; 1436 1437 /** 1438 * If this task was started from an alias, this is the actual 1439 * activity component that was initially started; the component of 1440 * the baseIntent in this case is the name of the actual activity 1441 * implementation that the alias referred to. Otherwise, this is null. 1442 */ 1443 public ComponentName origActivity; 1444 1445 /** 1446 * The actual activity component that started the task. 1447 * @hide 1448 */ 1449 @Nullable 1450 public ComponentName realActivity; 1451 1452 /** 1453 * Description of the task's last state. 1454 */ 1455 public CharSequence description; 1456 1457 /** 1458 * The id of the ActivityStack this Task was on most recently. 1459 * @hide 1460 */ 1461 public int stackId; 1462 1463 /** 1464 * The id of the user the task was running as. 1465 * @hide 1466 */ 1467 public int userId; 1468 1469 /** 1470 * The first time this task was active. 1471 * @hide 1472 */ 1473 public long firstActiveTime; 1474 1475 /** 1476 * The last time this task was active. 1477 * @hide 1478 */ 1479 public long lastActiveTime; 1480 1481 /** 1482 * The recent activity values for the highest activity in the stack to have set the values. 1483 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1484 */ 1485 public TaskDescription taskDescription; 1486 1487 /** 1488 * Task affiliation for grouping with other tasks. 1489 */ 1490 public int affiliatedTaskId; 1491 1492 /** 1493 * Task affiliation color of the source task with the affiliated task id. 1494 * 1495 * @hide 1496 */ 1497 public int affiliatedTaskColor; 1498 1499 /** 1500 * The component launched as the first activity in the task. 1501 * This can be considered the "application" of this task. 1502 */ 1503 public ComponentName baseActivity; 1504 1505 /** 1506 * The activity component at the top of the history stack of the task. 1507 * This is what the user is currently doing. 1508 */ 1509 public ComponentName topActivity; 1510 1511 /** 1512 * Number of activities in this task. 1513 */ 1514 public int numActivities; 1515 1516 /** 1517 * The bounds of the task. 1518 * @hide 1519 */ 1520 public Rect bounds; 1521 1522 /** 1523 * True if the task can go in the docked stack. 1524 * @hide 1525 */ 1526 public boolean supportsSplitScreenMultiWindow; 1527 1528 /** 1529 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1530 * @hide 1531 */ 1532 public int resizeMode; 1533 1534 public RecentTaskInfo() { 1535 } 1536 1537 @Override 1538 public int describeContents() { 1539 return 0; 1540 } 1541 1542 @Override 1543 public void writeToParcel(Parcel dest, int flags) { 1544 dest.writeInt(id); 1545 dest.writeInt(persistentId); 1546 if (baseIntent != null) { 1547 dest.writeInt(1); 1548 baseIntent.writeToParcel(dest, 0); 1549 } else { 1550 dest.writeInt(0); 1551 } 1552 ComponentName.writeToParcel(origActivity, dest); 1553 ComponentName.writeToParcel(realActivity, dest); 1554 TextUtils.writeToParcel(description, dest, 1555 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1556 if (taskDescription != null) { 1557 dest.writeInt(1); 1558 taskDescription.writeToParcel(dest, 0); 1559 } else { 1560 dest.writeInt(0); 1561 } 1562 dest.writeInt(stackId); 1563 dest.writeInt(userId); 1564 dest.writeLong(firstActiveTime); 1565 dest.writeLong(lastActiveTime); 1566 dest.writeInt(affiliatedTaskId); 1567 dest.writeInt(affiliatedTaskColor); 1568 ComponentName.writeToParcel(baseActivity, dest); 1569 ComponentName.writeToParcel(topActivity, dest); 1570 dest.writeInt(numActivities); 1571 if (bounds != null) { 1572 dest.writeInt(1); 1573 bounds.writeToParcel(dest, 0); 1574 } else { 1575 dest.writeInt(0); 1576 } 1577 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1578 dest.writeInt(resizeMode); 1579 } 1580 1581 public void readFromParcel(Parcel source) { 1582 id = source.readInt(); 1583 persistentId = source.readInt(); 1584 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1585 origActivity = ComponentName.readFromParcel(source); 1586 realActivity = ComponentName.readFromParcel(source); 1587 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1588 taskDescription = source.readInt() > 0 ? 1589 TaskDescription.CREATOR.createFromParcel(source) : null; 1590 stackId = source.readInt(); 1591 userId = source.readInt(); 1592 firstActiveTime = source.readLong(); 1593 lastActiveTime = source.readLong(); 1594 affiliatedTaskId = source.readInt(); 1595 affiliatedTaskColor = source.readInt(); 1596 baseActivity = ComponentName.readFromParcel(source); 1597 topActivity = ComponentName.readFromParcel(source); 1598 numActivities = source.readInt(); 1599 bounds = source.readInt() > 0 ? 1600 Rect.CREATOR.createFromParcel(source) : null; 1601 supportsSplitScreenMultiWindow = source.readInt() == 1; 1602 resizeMode = source.readInt(); 1603 } 1604 1605 public static final Creator<RecentTaskInfo> CREATOR 1606 = new Creator<RecentTaskInfo>() { 1607 public RecentTaskInfo createFromParcel(Parcel source) { 1608 return new RecentTaskInfo(source); 1609 } 1610 public RecentTaskInfo[] newArray(int size) { 1611 return new RecentTaskInfo[size]; 1612 } 1613 }; 1614 1615 private RecentTaskInfo(Parcel source) { 1616 readFromParcel(source); 1617 } 1618 } 1619 1620 /** 1621 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1622 * that have set their 1623 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1624 */ 1625 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1626 1627 /** 1628 * Provides a list that does not contain any 1629 * recent tasks that currently are not available to the user. 1630 */ 1631 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1632 1633 /** 1634 * Provides a list that contains recent tasks for all 1635 * profiles of a user. 1636 * @hide 1637 */ 1638 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1639 1640 /** 1641 * Ignores all tasks that are on the home stack. 1642 * @hide 1643 */ 1644 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1645 1646 /** 1647 * Ignores the top task in the docked stack. 1648 * @hide 1649 */ 1650 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1651 1652 /** 1653 * Ignores all tasks that are on the pinned stack. 1654 * @hide 1655 */ 1656 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1657 1658 /** 1659 * <p></p>Return a list of the tasks that the user has recently launched, with 1660 * the most recent being first and older ones after in order. 1661 * 1662 * <p><b>Note: this method is only intended for debugging and presenting 1663 * task management user interfaces</b>. This should never be used for 1664 * core logic in an application, such as deciding between different 1665 * behaviors based on the information found here. Such uses are 1666 * <em>not</em> supported, and will likely break in the future. For 1667 * example, if multiple applications can be actively running at the 1668 * same time, assumptions made about the meaning of the data here for 1669 * purposes of control flow will be incorrect.</p> 1670 * 1671 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1672 * no longer available to third party applications: the introduction of 1673 * document-centric recents means 1674 * it can leak personal information to the caller. For backwards compatibility, 1675 * it will still return a small subset of its data: at least the caller's 1676 * own tasks (though see {@link #getAppTasks()} for the correct supported 1677 * way to retrieve that information), and possibly some other tasks 1678 * such as home that are known to not be sensitive. 1679 * 1680 * @param maxNum The maximum number of entries to return in the list. The 1681 * actual number returned may be smaller, depending on how many tasks the 1682 * user has started and the maximum number the system can remember. 1683 * @param flags Information about what to return. May be any combination 1684 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1685 * 1686 * @return Returns a list of RecentTaskInfo records describing each of 1687 * the recent tasks. 1688 */ 1689 @Deprecated 1690 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1691 throws SecurityException { 1692 try { 1693 return getService().getRecentTasks(maxNum, 1694 flags, UserHandle.myUserId()).getList(); 1695 } catch (RemoteException e) { 1696 throw e.rethrowFromSystemServer(); 1697 } 1698 } 1699 1700 /** 1701 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1702 * specific user. It requires holding 1703 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1704 * @param maxNum The maximum number of entries to return in the list. The 1705 * actual number returned may be smaller, depending on how many tasks the 1706 * user has started and the maximum number the system can remember. 1707 * @param flags Information about what to return. May be any combination 1708 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1709 * 1710 * @return Returns a list of RecentTaskInfo records describing each of 1711 * the recent tasks. Most recently activated tasks go first. 1712 * 1713 * @hide 1714 */ 1715 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1716 throws SecurityException { 1717 try { 1718 return getService().getRecentTasks(maxNum, 1719 flags, userId).getList(); 1720 } catch (RemoteException e) { 1721 throw e.rethrowFromSystemServer(); 1722 } 1723 } 1724 1725 /** 1726 * Information you can retrieve about a particular task that is currently 1727 * "running" in the system. Note that a running task does not mean the 1728 * given task actually has a process it is actively running in; it simply 1729 * means that the user has gone to it and never closed it, but currently 1730 * the system may have killed its process and is only holding on to its 1731 * last state in order to restart it when the user returns. 1732 */ 1733 public static class RunningTaskInfo implements Parcelable { 1734 /** 1735 * A unique identifier for this task. 1736 */ 1737 public int id; 1738 1739 /** 1740 * The stack that currently contains this task. 1741 * @hide 1742 */ 1743 public int stackId; 1744 1745 /** 1746 * The component launched as the first activity in the task. This can 1747 * be considered the "application" of this task. 1748 */ 1749 public ComponentName baseActivity; 1750 1751 /** 1752 * The activity component at the top of the history stack of the task. 1753 * This is what the user is currently doing. 1754 */ 1755 public ComponentName topActivity; 1756 1757 /** 1758 * Thumbnail representation of the task's current state. Currently 1759 * always null. 1760 */ 1761 public Bitmap thumbnail; 1762 1763 /** 1764 * Description of the task's current state. 1765 */ 1766 public CharSequence description; 1767 1768 /** 1769 * Number of activities in this task. 1770 */ 1771 public int numActivities; 1772 1773 /** 1774 * Number of activities that are currently running (not stopped 1775 * and persisted) in this task. 1776 */ 1777 public int numRunning; 1778 1779 /** 1780 * Last time task was run. For sorting. 1781 * @hide 1782 */ 1783 public long lastActiveTime; 1784 1785 /** 1786 * True if the task can go in the docked stack. 1787 * @hide 1788 */ 1789 public boolean supportsSplitScreenMultiWindow; 1790 1791 /** 1792 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1793 * @hide 1794 */ 1795 public int resizeMode; 1796 1797 /** 1798 * The full configuration the task is currently running in. 1799 * @hide 1800 */ 1801 public Configuration configuration = new Configuration(); 1802 1803 public RunningTaskInfo() { 1804 } 1805 1806 public int describeContents() { 1807 return 0; 1808 } 1809 1810 public void writeToParcel(Parcel dest, int flags) { 1811 dest.writeInt(id); 1812 dest.writeInt(stackId); 1813 ComponentName.writeToParcel(baseActivity, dest); 1814 ComponentName.writeToParcel(topActivity, dest); 1815 if (thumbnail != null) { 1816 dest.writeInt(1); 1817 thumbnail.writeToParcel(dest, 0); 1818 } else { 1819 dest.writeInt(0); 1820 } 1821 TextUtils.writeToParcel(description, dest, 1822 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1823 dest.writeInt(numActivities); 1824 dest.writeInt(numRunning); 1825 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1826 dest.writeInt(resizeMode); 1827 configuration.writeToParcel(dest, flags); 1828 } 1829 1830 public void readFromParcel(Parcel source) { 1831 id = source.readInt(); 1832 stackId = source.readInt(); 1833 baseActivity = ComponentName.readFromParcel(source); 1834 topActivity = ComponentName.readFromParcel(source); 1835 if (source.readInt() != 0) { 1836 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1837 } else { 1838 thumbnail = null; 1839 } 1840 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1841 numActivities = source.readInt(); 1842 numRunning = source.readInt(); 1843 supportsSplitScreenMultiWindow = source.readInt() != 0; 1844 resizeMode = source.readInt(); 1845 configuration.readFromParcel(source); 1846 } 1847 1848 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1849 public RunningTaskInfo createFromParcel(Parcel source) { 1850 return new RunningTaskInfo(source); 1851 } 1852 public RunningTaskInfo[] newArray(int size) { 1853 return new RunningTaskInfo[size]; 1854 } 1855 }; 1856 1857 private RunningTaskInfo(Parcel source) { 1858 readFromParcel(source); 1859 } 1860 } 1861 1862 /** 1863 * Get the list of tasks associated with the calling application. 1864 * 1865 * @return The list of tasks associated with the application making this call. 1866 * @throws SecurityException 1867 */ 1868 public List<ActivityManager.AppTask> getAppTasks() { 1869 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1870 List<IBinder> appTasks; 1871 try { 1872 appTasks = getService().getAppTasks(mContext.getPackageName()); 1873 } catch (RemoteException e) { 1874 throw e.rethrowFromSystemServer(); 1875 } 1876 int numAppTasks = appTasks.size(); 1877 for (int i = 0; i < numAppTasks; i++) { 1878 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1879 } 1880 return tasks; 1881 } 1882 1883 /** 1884 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1885 * with {@link #addAppTask}. 1886 */ 1887 public Size getAppTaskThumbnailSize() { 1888 synchronized (this) { 1889 ensureAppTaskThumbnailSizeLocked(); 1890 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1891 } 1892 } 1893 1894 private void ensureAppTaskThumbnailSizeLocked() { 1895 if (mAppTaskThumbnailSize == null) { 1896 try { 1897 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1898 } catch (RemoteException e) { 1899 throw e.rethrowFromSystemServer(); 1900 } 1901 } 1902 } 1903 1904 /** 1905 * Add a new {@link AppTask} for the calling application. This will create a new 1906 * recents entry that is added to the <b>end</b> of all existing recents. 1907 * 1908 * @param activity The activity that is adding the entry. This is used to help determine 1909 * the context that the new recents entry will be in. 1910 * @param intent The Intent that describes the recents entry. This is the same Intent that 1911 * you would have used to launch the activity for it. In generally you will want to set 1912 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1913 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1914 * entry will exist without an activity, so it doesn't make sense to not retain it when 1915 * its activity disappears. The given Intent here also must have an explicit ComponentName 1916 * set on it. 1917 * @param description Optional additional description information. 1918 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1919 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1920 * recreated in your process, probably in a way you don't like, before the recents entry 1921 * is added. 1922 * 1923 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1924 * most likely cause of failure is that there is no more room for more tasks for your app. 1925 */ 1926 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1927 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1928 Point size; 1929 synchronized (this) { 1930 ensureAppTaskThumbnailSizeLocked(); 1931 size = mAppTaskThumbnailSize; 1932 } 1933 final int tw = thumbnail.getWidth(); 1934 final int th = thumbnail.getHeight(); 1935 if (tw != size.x || th != size.y) { 1936 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1937 1938 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1939 float scale; 1940 float dx = 0, dy = 0; 1941 if (tw * size.x > size.y * th) { 1942 scale = (float) size.x / (float) th; 1943 dx = (size.y - tw * scale) * 0.5f; 1944 } else { 1945 scale = (float) size.y / (float) tw; 1946 dy = (size.x - th * scale) * 0.5f; 1947 } 1948 Matrix matrix = new Matrix(); 1949 matrix.setScale(scale, scale); 1950 matrix.postTranslate((int) (dx + 0.5f), 0); 1951 1952 Canvas canvas = new Canvas(bm); 1953 canvas.drawBitmap(thumbnail, matrix, null); 1954 canvas.setBitmap(null); 1955 1956 thumbnail = bm; 1957 } 1958 if (description == null) { 1959 description = new TaskDescription(); 1960 } 1961 try { 1962 return getService().addAppTask(activity.getActivityToken(), 1963 intent, description, thumbnail); 1964 } catch (RemoteException e) { 1965 throw e.rethrowFromSystemServer(); 1966 } 1967 } 1968 1969 /** 1970 * Return a list of the tasks that are currently running, with 1971 * the most recent being first and older ones after in order. Note that 1972 * "running" does not mean any of the task's code is currently loaded or 1973 * activity -- the task may have been frozen by the system, so that it 1974 * can be restarted in its previous state when next brought to the 1975 * foreground. 1976 * 1977 * <p><b>Note: this method is only intended for debugging and presenting 1978 * task management user interfaces</b>. This should never be used for 1979 * core logic in an application, such as deciding between different 1980 * behaviors based on the information found here. Such uses are 1981 * <em>not</em> supported, and will likely break in the future. For 1982 * example, if multiple applications can be actively running at the 1983 * same time, assumptions made about the meaning of the data here for 1984 * purposes of control flow will be incorrect.</p> 1985 * 1986 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1987 * is no longer available to third party 1988 * applications: the introduction of document-centric recents means 1989 * it can leak person information to the caller. For backwards compatibility, 1990 * it will still return a small subset of its data: at least the caller's 1991 * own tasks, and possibly some other tasks 1992 * such as home that are known to not be sensitive. 1993 * 1994 * @param maxNum The maximum number of entries to return in the list. The 1995 * actual number returned may be smaller, depending on how many tasks the 1996 * user has started. 1997 * 1998 * @return Returns a list of RunningTaskInfo records describing each of 1999 * the running tasks. 2000 */ 2001 @Deprecated 2002 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2003 throws SecurityException { 2004 try { 2005 return getService().getTasks(maxNum, 0); 2006 } catch (RemoteException e) { 2007 throw e.rethrowFromSystemServer(); 2008 } 2009 } 2010 2011 /** 2012 * Completely remove the given task. 2013 * 2014 * @param taskId Identifier of the task to be removed. 2015 * @return Returns true if the given task was found and removed. 2016 * 2017 * @hide 2018 */ 2019 public boolean removeTask(int taskId) throws SecurityException { 2020 try { 2021 return getService().removeTask(taskId); 2022 } catch (RemoteException e) { 2023 throw e.rethrowFromSystemServer(); 2024 } 2025 } 2026 2027 /** 2028 * Removes stacks in the windowing modes from the system if they are of activity type 2029 * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED 2030 * 2031 * @hide 2032 */ 2033 @TestApi 2034 public void removeStacksInWindowingModes(int[] windowingModes) throws SecurityException { 2035 try { 2036 getService().removeStacksInWindowingModes(windowingModes); 2037 } catch (RemoteException e) { 2038 throw e.rethrowFromSystemServer(); 2039 } 2040 } 2041 2042 /** 2043 * Removes stack of the activity types from the system. 2044 * 2045 * @hide 2046 */ 2047 @TestApi 2048 public void removeStacksWithActivityTypes(int[] activityTypes) throws SecurityException { 2049 try { 2050 getService().removeStacksWithActivityTypes(activityTypes); 2051 } catch (RemoteException e) { 2052 throw e.rethrowFromSystemServer(); 2053 } 2054 } 2055 2056 /** 2057 * Represents a task snapshot. 2058 * @hide 2059 */ 2060 public static class TaskSnapshot implements Parcelable { 2061 2062 private final GraphicBuffer mSnapshot; 2063 private final int mOrientation; 2064 private final Rect mContentInsets; 2065 private final boolean mReducedResolution; 2066 private final float mScale; 2067 2068 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2069 boolean reducedResolution, float scale) { 2070 mSnapshot = snapshot; 2071 mOrientation = orientation; 2072 mContentInsets = new Rect(contentInsets); 2073 mReducedResolution = reducedResolution; 2074 mScale = scale; 2075 } 2076 2077 private TaskSnapshot(Parcel source) { 2078 mSnapshot = source.readParcelable(null /* classLoader */); 2079 mOrientation = source.readInt(); 2080 mContentInsets = source.readParcelable(null /* classLoader */); 2081 mReducedResolution = source.readBoolean(); 2082 mScale = source.readFloat(); 2083 } 2084 2085 /** 2086 * @return The graphic buffer representing the screenshot. 2087 */ 2088 public GraphicBuffer getSnapshot() { 2089 return mSnapshot; 2090 } 2091 2092 /** 2093 * @return The screen orientation the screenshot was taken in. 2094 */ 2095 public int getOrientation() { 2096 return mOrientation; 2097 } 2098 2099 /** 2100 * @return The system/content insets on the snapshot. These can be clipped off in order to 2101 * remove any areas behind system bars in the snapshot. 2102 */ 2103 public Rect getContentInsets() { 2104 return mContentInsets; 2105 } 2106 2107 /** 2108 * @return Whether this snapshot is a down-sampled version of the full resolution. 2109 */ 2110 public boolean isReducedResolution() { 2111 return mReducedResolution; 2112 } 2113 2114 /** 2115 * @return The scale this snapshot was taken in. 2116 */ 2117 public float getScale() { 2118 return mScale; 2119 } 2120 2121 @Override 2122 public int describeContents() { 2123 return 0; 2124 } 2125 2126 @Override 2127 public void writeToParcel(Parcel dest, int flags) { 2128 dest.writeParcelable(mSnapshot, 0); 2129 dest.writeInt(mOrientation); 2130 dest.writeParcelable(mContentInsets, 0); 2131 dest.writeBoolean(mReducedResolution); 2132 dest.writeFloat(mScale); 2133 } 2134 2135 @Override 2136 public String toString() { 2137 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2138 + " mContentInsets=" + mContentInsets.toShortString() 2139 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2140 } 2141 2142 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2143 public TaskSnapshot createFromParcel(Parcel source) { 2144 return new TaskSnapshot(source); 2145 } 2146 public TaskSnapshot[] newArray(int size) { 2147 return new TaskSnapshot[size]; 2148 } 2149 }; 2150 } 2151 2152 /** @hide */ 2153 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2154 MOVE_TASK_WITH_HOME, 2155 MOVE_TASK_NO_USER_ACTION, 2156 }) 2157 @Retention(RetentionPolicy.SOURCE) 2158 public @interface MoveTaskFlags {} 2159 2160 /** 2161 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2162 * activity along with the task, so it is positioned immediately behind 2163 * the task. 2164 */ 2165 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2166 2167 /** 2168 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2169 * user-instigated action, so the current activity will not receive a 2170 * hint that the user is leaving. 2171 */ 2172 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2173 2174 /** 2175 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2176 * with a null options argument. 2177 * 2178 * @param taskId The identifier of the task to be moved, as found in 2179 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2180 * @param flags Additional operational flags. 2181 */ 2182 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2183 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2184 moveTaskToFront(taskId, flags, null); 2185 } 2186 2187 /** 2188 * Ask that the task associated with a given task ID be moved to the 2189 * front of the stack, so it is now visible to the user. 2190 * 2191 * @param taskId The identifier of the task to be moved, as found in 2192 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2193 * @param flags Additional operational flags. 2194 * @param options Additional options for the operation, either null or 2195 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2196 * Context.startActivity(Intent, Bundle)}. 2197 */ 2198 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2199 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2200 try { 2201 getService().moveTaskToFront(taskId, flags, options); 2202 } catch (RemoteException e) { 2203 throw e.rethrowFromSystemServer(); 2204 } 2205 } 2206 2207 /** 2208 * Information you can retrieve about a particular Service that is 2209 * currently running in the system. 2210 */ 2211 public static class RunningServiceInfo implements Parcelable { 2212 /** 2213 * The service component. 2214 */ 2215 public ComponentName service; 2216 2217 /** 2218 * If non-zero, this is the process the service is running in. 2219 */ 2220 public int pid; 2221 2222 /** 2223 * The UID that owns this service. 2224 */ 2225 public int uid; 2226 2227 /** 2228 * The name of the process this service runs in. 2229 */ 2230 public String process; 2231 2232 /** 2233 * Set to true if the service has asked to run as a foreground process. 2234 */ 2235 public boolean foreground; 2236 2237 /** 2238 * The time when the service was first made active, either by someone 2239 * starting or binding to it. This 2240 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2241 */ 2242 public long activeSince; 2243 2244 /** 2245 * Set to true if this service has been explicitly started. 2246 */ 2247 public boolean started; 2248 2249 /** 2250 * Number of clients connected to the service. 2251 */ 2252 public int clientCount; 2253 2254 /** 2255 * Number of times the service's process has crashed while the service 2256 * is running. 2257 */ 2258 public int crashCount; 2259 2260 /** 2261 * The time when there was last activity in the service (either 2262 * explicit requests to start it or clients binding to it). This 2263 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2264 */ 2265 public long lastActivityTime; 2266 2267 /** 2268 * If non-zero, this service is not currently running, but scheduled to 2269 * restart at the given time. 2270 */ 2271 public long restarting; 2272 2273 /** 2274 * Bit for {@link #flags}: set if this service has been 2275 * explicitly started. 2276 */ 2277 public static final int FLAG_STARTED = 1<<0; 2278 2279 /** 2280 * Bit for {@link #flags}: set if the service has asked to 2281 * run as a foreground process. 2282 */ 2283 public static final int FLAG_FOREGROUND = 1<<1; 2284 2285 /** 2286 * Bit for {@link #flags}: set if the service is running in a 2287 * core system process. 2288 */ 2289 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2290 2291 /** 2292 * Bit for {@link #flags}: set if the service is running in a 2293 * persistent process. 2294 */ 2295 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2296 2297 /** 2298 * Running flags. 2299 */ 2300 public int flags; 2301 2302 /** 2303 * For special services that are bound to by system code, this is 2304 * the package that holds the binding. 2305 */ 2306 public String clientPackage; 2307 2308 /** 2309 * For special services that are bound to by system code, this is 2310 * a string resource providing a user-visible label for who the 2311 * client is. 2312 */ 2313 public int clientLabel; 2314 2315 public RunningServiceInfo() { 2316 } 2317 2318 public int describeContents() { 2319 return 0; 2320 } 2321 2322 public void writeToParcel(Parcel dest, int flags) { 2323 ComponentName.writeToParcel(service, dest); 2324 dest.writeInt(pid); 2325 dest.writeInt(uid); 2326 dest.writeString(process); 2327 dest.writeInt(foreground ? 1 : 0); 2328 dest.writeLong(activeSince); 2329 dest.writeInt(started ? 1 : 0); 2330 dest.writeInt(clientCount); 2331 dest.writeInt(crashCount); 2332 dest.writeLong(lastActivityTime); 2333 dest.writeLong(restarting); 2334 dest.writeInt(this.flags); 2335 dest.writeString(clientPackage); 2336 dest.writeInt(clientLabel); 2337 } 2338 2339 public void readFromParcel(Parcel source) { 2340 service = ComponentName.readFromParcel(source); 2341 pid = source.readInt(); 2342 uid = source.readInt(); 2343 process = source.readString(); 2344 foreground = source.readInt() != 0; 2345 activeSince = source.readLong(); 2346 started = source.readInt() != 0; 2347 clientCount = source.readInt(); 2348 crashCount = source.readInt(); 2349 lastActivityTime = source.readLong(); 2350 restarting = source.readLong(); 2351 flags = source.readInt(); 2352 clientPackage = source.readString(); 2353 clientLabel = source.readInt(); 2354 } 2355 2356 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2357 public RunningServiceInfo createFromParcel(Parcel source) { 2358 return new RunningServiceInfo(source); 2359 } 2360 public RunningServiceInfo[] newArray(int size) { 2361 return new RunningServiceInfo[size]; 2362 } 2363 }; 2364 2365 private RunningServiceInfo(Parcel source) { 2366 readFromParcel(source); 2367 } 2368 } 2369 2370 /** 2371 * Return a list of the services that are currently running. 2372 * 2373 * <p><b>Note: this method is only intended for debugging or implementing 2374 * service management type user interfaces.</b></p> 2375 * 2376 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2377 * is no longer available to third party applications. For backwards compatibility, 2378 * it will still return the caller's own services. 2379 * 2380 * @param maxNum The maximum number of entries to return in the list. The 2381 * actual number returned may be smaller, depending on how many services 2382 * are running. 2383 * 2384 * @return Returns a list of RunningServiceInfo records describing each of 2385 * the running tasks. 2386 */ 2387 @Deprecated 2388 public List<RunningServiceInfo> getRunningServices(int maxNum) 2389 throws SecurityException { 2390 try { 2391 return getService() 2392 .getServices(maxNum, 0); 2393 } catch (RemoteException e) { 2394 throw e.rethrowFromSystemServer(); 2395 } 2396 } 2397 2398 /** 2399 * Returns a PendingIntent you can start to show a control panel for the 2400 * given running service. If the service does not have a control panel, 2401 * null is returned. 2402 */ 2403 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2404 throws SecurityException { 2405 try { 2406 return getService() 2407 .getRunningServiceControlPanel(service); 2408 } catch (RemoteException e) { 2409 throw e.rethrowFromSystemServer(); 2410 } 2411 } 2412 2413 /** 2414 * Information you can retrieve about the available memory through 2415 * {@link ActivityManager#getMemoryInfo}. 2416 */ 2417 public static class MemoryInfo implements Parcelable { 2418 /** 2419 * The available memory on the system. This number should not 2420 * be considered absolute: due to the nature of the kernel, a significant 2421 * portion of this memory is actually in use and needed for the overall 2422 * system to run well. 2423 */ 2424 public long availMem; 2425 2426 /** 2427 * The total memory accessible by the kernel. This is basically the 2428 * RAM size of the device, not including below-kernel fixed allocations 2429 * like DMA buffers, RAM for the baseband CPU, etc. 2430 */ 2431 public long totalMem; 2432 2433 /** 2434 * The threshold of {@link #availMem} at which we consider memory to be 2435 * low and start killing background services and other non-extraneous 2436 * processes. 2437 */ 2438 public long threshold; 2439 2440 /** 2441 * Set to true if the system considers itself to currently be in a low 2442 * memory situation. 2443 */ 2444 public boolean lowMemory; 2445 2446 /** @hide */ 2447 public long hiddenAppThreshold; 2448 /** @hide */ 2449 public long secondaryServerThreshold; 2450 /** @hide */ 2451 public long visibleAppThreshold; 2452 /** @hide */ 2453 public long foregroundAppThreshold; 2454 2455 public MemoryInfo() { 2456 } 2457 2458 public int describeContents() { 2459 return 0; 2460 } 2461 2462 public void writeToParcel(Parcel dest, int flags) { 2463 dest.writeLong(availMem); 2464 dest.writeLong(totalMem); 2465 dest.writeLong(threshold); 2466 dest.writeInt(lowMemory ? 1 : 0); 2467 dest.writeLong(hiddenAppThreshold); 2468 dest.writeLong(secondaryServerThreshold); 2469 dest.writeLong(visibleAppThreshold); 2470 dest.writeLong(foregroundAppThreshold); 2471 } 2472 2473 public void readFromParcel(Parcel source) { 2474 availMem = source.readLong(); 2475 totalMem = source.readLong(); 2476 threshold = source.readLong(); 2477 lowMemory = source.readInt() != 0; 2478 hiddenAppThreshold = source.readLong(); 2479 secondaryServerThreshold = source.readLong(); 2480 visibleAppThreshold = source.readLong(); 2481 foregroundAppThreshold = source.readLong(); 2482 } 2483 2484 public static final Creator<MemoryInfo> CREATOR 2485 = new Creator<MemoryInfo>() { 2486 public MemoryInfo createFromParcel(Parcel source) { 2487 return new MemoryInfo(source); 2488 } 2489 public MemoryInfo[] newArray(int size) { 2490 return new MemoryInfo[size]; 2491 } 2492 }; 2493 2494 private MemoryInfo(Parcel source) { 2495 readFromParcel(source); 2496 } 2497 } 2498 2499 /** 2500 * Return general information about the memory state of the system. This 2501 * can be used to help decide how to manage your own memory, though note 2502 * that polling is not recommended and 2503 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2504 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2505 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2506 * level of your process as needed, which gives a better hint for how to 2507 * manage its memory. 2508 */ 2509 public void getMemoryInfo(MemoryInfo outInfo) { 2510 try { 2511 getService().getMemoryInfo(outInfo); 2512 } catch (RemoteException e) { 2513 throw e.rethrowFromSystemServer(); 2514 } 2515 } 2516 2517 /** 2518 * Information you can retrieve about an ActivityStack in the system. 2519 * @hide 2520 */ 2521 public static class StackInfo implements Parcelable { 2522 public int stackId; 2523 public Rect bounds = new Rect(); 2524 public int[] taskIds; 2525 public String[] taskNames; 2526 public Rect[] taskBounds; 2527 public int[] taskUserIds; 2528 public ComponentName topActivity; 2529 public int displayId; 2530 public int userId; 2531 public boolean visible; 2532 // Index of the stack in the display's stack list, can be used for comparison of stack order 2533 public int position; 2534 /** 2535 * The full configuration the stack is currently running in. 2536 * @hide 2537 */ 2538 public Configuration configuration = new Configuration(); 2539 2540 @Override 2541 public int describeContents() { 2542 return 0; 2543 } 2544 2545 @Override 2546 public void writeToParcel(Parcel dest, int flags) { 2547 dest.writeInt(stackId); 2548 dest.writeInt(bounds.left); 2549 dest.writeInt(bounds.top); 2550 dest.writeInt(bounds.right); 2551 dest.writeInt(bounds.bottom); 2552 dest.writeIntArray(taskIds); 2553 dest.writeStringArray(taskNames); 2554 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2555 dest.writeInt(boundsCount); 2556 for (int i = 0; i < boundsCount; i++) { 2557 dest.writeInt(taskBounds[i].left); 2558 dest.writeInt(taskBounds[i].top); 2559 dest.writeInt(taskBounds[i].right); 2560 dest.writeInt(taskBounds[i].bottom); 2561 } 2562 dest.writeIntArray(taskUserIds); 2563 dest.writeInt(displayId); 2564 dest.writeInt(userId); 2565 dest.writeInt(visible ? 1 : 0); 2566 dest.writeInt(position); 2567 if (topActivity != null) { 2568 dest.writeInt(1); 2569 topActivity.writeToParcel(dest, 0); 2570 } else { 2571 dest.writeInt(0); 2572 } 2573 configuration.writeToParcel(dest, flags); 2574 } 2575 2576 public void readFromParcel(Parcel source) { 2577 stackId = source.readInt(); 2578 bounds = new Rect( 2579 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2580 taskIds = source.createIntArray(); 2581 taskNames = source.createStringArray(); 2582 final int boundsCount = source.readInt(); 2583 if (boundsCount > 0) { 2584 taskBounds = new Rect[boundsCount]; 2585 for (int i = 0; i < boundsCount; i++) { 2586 taskBounds[i] = new Rect(); 2587 taskBounds[i].set( 2588 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2589 } 2590 } else { 2591 taskBounds = null; 2592 } 2593 taskUserIds = source.createIntArray(); 2594 displayId = source.readInt(); 2595 userId = source.readInt(); 2596 visible = source.readInt() > 0; 2597 position = source.readInt(); 2598 if (source.readInt() > 0) { 2599 topActivity = ComponentName.readFromParcel(source); 2600 } 2601 configuration.readFromParcel(source); 2602 } 2603 2604 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2605 @Override 2606 public StackInfo createFromParcel(Parcel source) { 2607 return new StackInfo(source); 2608 } 2609 @Override 2610 public StackInfo[] newArray(int size) { 2611 return new StackInfo[size]; 2612 } 2613 }; 2614 2615 public StackInfo() { 2616 } 2617 2618 private StackInfo(Parcel source) { 2619 readFromParcel(source); 2620 } 2621 2622 public String toString(String prefix) { 2623 StringBuilder sb = new StringBuilder(256); 2624 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2625 sb.append(" bounds="); sb.append(bounds.toShortString()); 2626 sb.append(" displayId="); sb.append(displayId); 2627 sb.append(" userId="); sb.append(userId); 2628 sb.append("\n"); 2629 sb.append(" configuration="); sb.append(configuration); 2630 sb.append("\n"); 2631 prefix = prefix + " "; 2632 for (int i = 0; i < taskIds.length; ++i) { 2633 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2634 sb.append(": "); sb.append(taskNames[i]); 2635 if (taskBounds != null) { 2636 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2637 } 2638 sb.append(" userId=").append(taskUserIds[i]); 2639 sb.append(" visible=").append(visible); 2640 if (topActivity != null) { 2641 sb.append(" topActivity=").append(topActivity); 2642 } 2643 sb.append("\n"); 2644 } 2645 return sb.toString(); 2646 } 2647 2648 @Override 2649 public String toString() { 2650 return toString(""); 2651 } 2652 } 2653 2654 /** 2655 * @hide 2656 */ 2657 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2658 Manifest.permission.ACCESS_INSTANT_APPS}) 2659 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2660 try { 2661 return getService().clearApplicationUserData(packageName, 2662 observer, UserHandle.myUserId()); 2663 } catch (RemoteException e) { 2664 throw e.rethrowFromSystemServer(); 2665 } 2666 } 2667 2668 /** 2669 * Permits an application to erase its own data from disk. This is equivalent to 2670 * the user choosing to clear the app's data from within the device settings UI. It 2671 * erases all dynamic data associated with the app -- its private data and data in its 2672 * private area on external storage -- but does not remove the installed application 2673 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2674 * clears all notifications and removes all Uri grants related to this application. 2675 * 2676 * @return {@code true} if the application successfully requested that the application's 2677 * data be erased; {@code false} otherwise. 2678 */ 2679 public boolean clearApplicationUserData() { 2680 return clearApplicationUserData(mContext.getPackageName(), null); 2681 } 2682 2683 2684 /** 2685 * Permits an application to get the persistent URI permissions granted to another. 2686 * 2687 * <p>Typically called by Settings. 2688 * 2689 * @param packageName application to look for the granted permissions 2690 * @return list of granted URI permissions 2691 * 2692 * @hide 2693 */ 2694 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2695 try { 2696 return getService().getGrantedUriPermissions(packageName, 2697 UserHandle.myUserId()); 2698 } catch (RemoteException e) { 2699 throw e.rethrowFromSystemServer(); 2700 } 2701 } 2702 2703 /** 2704 * Permits an application to clear the persistent URI permissions granted to another. 2705 * 2706 * <p>Typically called by Settings. 2707 * 2708 * @param packageName application to clear its granted permissions 2709 * 2710 * @hide 2711 */ 2712 public void clearGrantedUriPermissions(String packageName) { 2713 try { 2714 getService().clearGrantedUriPermissions(packageName, 2715 UserHandle.myUserId()); 2716 } catch (RemoteException e) { 2717 throw e.rethrowFromSystemServer(); 2718 } 2719 } 2720 2721 /** 2722 * Information you can retrieve about any processes that are in an error condition. 2723 */ 2724 public static class ProcessErrorStateInfo implements Parcelable { 2725 /** 2726 * Condition codes 2727 */ 2728 public static final int NO_ERROR = 0; 2729 public static final int CRASHED = 1; 2730 public static final int NOT_RESPONDING = 2; 2731 2732 /** 2733 * The condition that the process is in. 2734 */ 2735 public int condition; 2736 2737 /** 2738 * The process name in which the crash or error occurred. 2739 */ 2740 public String processName; 2741 2742 /** 2743 * The pid of this process; 0 if none 2744 */ 2745 public int pid; 2746 2747 /** 2748 * The kernel user-ID that has been assigned to this process; 2749 * currently this is not a unique ID (multiple applications can have 2750 * the same uid). 2751 */ 2752 public int uid; 2753 2754 /** 2755 * The activity name associated with the error, if known. May be null. 2756 */ 2757 public String tag; 2758 2759 /** 2760 * A short message describing the error condition. 2761 */ 2762 public String shortMsg; 2763 2764 /** 2765 * A long message describing the error condition. 2766 */ 2767 public String longMsg; 2768 2769 /** 2770 * The stack trace where the error originated. May be null. 2771 */ 2772 public String stackTrace; 2773 2774 /** 2775 * to be deprecated: This value will always be null. 2776 */ 2777 public byte[] crashData = null; 2778 2779 public ProcessErrorStateInfo() { 2780 } 2781 2782 @Override 2783 public int describeContents() { 2784 return 0; 2785 } 2786 2787 @Override 2788 public void writeToParcel(Parcel dest, int flags) { 2789 dest.writeInt(condition); 2790 dest.writeString(processName); 2791 dest.writeInt(pid); 2792 dest.writeInt(uid); 2793 dest.writeString(tag); 2794 dest.writeString(shortMsg); 2795 dest.writeString(longMsg); 2796 dest.writeString(stackTrace); 2797 } 2798 2799 public void readFromParcel(Parcel source) { 2800 condition = source.readInt(); 2801 processName = source.readString(); 2802 pid = source.readInt(); 2803 uid = source.readInt(); 2804 tag = source.readString(); 2805 shortMsg = source.readString(); 2806 longMsg = source.readString(); 2807 stackTrace = source.readString(); 2808 } 2809 2810 public static final Creator<ProcessErrorStateInfo> CREATOR = 2811 new Creator<ProcessErrorStateInfo>() { 2812 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2813 return new ProcessErrorStateInfo(source); 2814 } 2815 public ProcessErrorStateInfo[] newArray(int size) { 2816 return new ProcessErrorStateInfo[size]; 2817 } 2818 }; 2819 2820 private ProcessErrorStateInfo(Parcel source) { 2821 readFromParcel(source); 2822 } 2823 } 2824 2825 /** 2826 * Returns a list of any processes that are currently in an error condition. The result 2827 * will be null if all processes are running properly at this time. 2828 * 2829 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2830 * current error conditions (it will not return an empty list). This list ordering is not 2831 * specified. 2832 */ 2833 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2834 try { 2835 return getService().getProcessesInErrorState(); 2836 } catch (RemoteException e) { 2837 throw e.rethrowFromSystemServer(); 2838 } 2839 } 2840 2841 /** 2842 * Information you can retrieve about a running process. 2843 */ 2844 public static class RunningAppProcessInfo implements Parcelable { 2845 /** 2846 * The name of the process that this object is associated with 2847 */ 2848 public String processName; 2849 2850 /** 2851 * The pid of this process; 0 if none 2852 */ 2853 public int pid; 2854 2855 /** 2856 * The user id of this process. 2857 */ 2858 public int uid; 2859 2860 /** 2861 * All packages that have been loaded into the process. 2862 */ 2863 public String pkgList[]; 2864 2865 /** 2866 * Constant for {@link #flags}: this is an app that is unable to 2867 * correctly save its state when going to the background, 2868 * so it can not be killed while in the background. 2869 * @hide 2870 */ 2871 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2872 2873 /** 2874 * Constant for {@link #flags}: this process is associated with a 2875 * persistent system app. 2876 * @hide 2877 */ 2878 public static final int FLAG_PERSISTENT = 1<<1; 2879 2880 /** 2881 * Constant for {@link #flags}: this process is associated with a 2882 * persistent system app. 2883 * @hide 2884 */ 2885 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2886 2887 /** 2888 * Flags of information. May be any of 2889 * {@link #FLAG_CANT_SAVE_STATE}. 2890 * @hide 2891 */ 2892 public int flags; 2893 2894 /** 2895 * Last memory trim level reported to the process: corresponds to 2896 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2897 * ComponentCallbacks2.onTrimMemory(int)}. 2898 */ 2899 public int lastTrimLevel; 2900 2901 /** @hide */ 2902 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2903 IMPORTANCE_FOREGROUND, 2904 IMPORTANCE_FOREGROUND_SERVICE, 2905 IMPORTANCE_TOP_SLEEPING, 2906 IMPORTANCE_VISIBLE, 2907 IMPORTANCE_PERCEPTIBLE, 2908 IMPORTANCE_CANT_SAVE_STATE, 2909 IMPORTANCE_SERVICE, 2910 IMPORTANCE_CACHED, 2911 IMPORTANCE_GONE, 2912 }) 2913 @Retention(RetentionPolicy.SOURCE) 2914 public @interface Importance {} 2915 2916 /** 2917 * Constant for {@link #importance}: This process is running the 2918 * foreground UI; that is, it is the thing currently at the top of the screen 2919 * that the user is interacting with. 2920 */ 2921 public static final int IMPORTANCE_FOREGROUND = 100; 2922 2923 /** 2924 * Constant for {@link #importance}: This process is running a foreground 2925 * service, for example to perform music playback even while the user is 2926 * not immediately in the app. This generally indicates that the process 2927 * is doing something the user actively cares about. 2928 */ 2929 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2930 2931 /** 2932 * Constant for {@link #importance}: This process is running the foreground 2933 * UI, but the device is asleep so it is not visible to the user. This means 2934 * the user is not really aware of the process, because they can not see or 2935 * interact with it, but it is quite important because it what they expect to 2936 * return to once unlocking the device. 2937 */ 2938 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2939 2940 /** 2941 * Constant for {@link #importance}: This process is running something 2942 * that is actively visible to the user, though not in the immediate 2943 * foreground. This may be running a window that is behind the current 2944 * foreground (so paused and with its state saved, not interacting with 2945 * the user, but visible to them to some degree); it may also be running 2946 * other services under the system's control that it inconsiders important. 2947 */ 2948 public static final int IMPORTANCE_VISIBLE = 200; 2949 2950 /** 2951 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 2952 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2953 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 2954 * 2955 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 2956 * on Android versions below {@link Build.VERSION_CODES#O}. 2957 * 2958 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 2959 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2960 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2961 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 2962 */ 2963 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 2964 2965 /** 2966 * Constant for {@link #importance}: This process is not something the user 2967 * is directly aware of, but is otherwise perceptible to them to some degree. 2968 */ 2969 public static final int IMPORTANCE_PERCEPTIBLE = 230; 2970 2971 /** 2972 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 2973 * this wrong value 2974 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2975 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 2976 * 2977 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 2978 * on Android versions below {@link Build.VERSION_CODES#O}. 2979 * 2980 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 2981 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2982 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2983 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 2984 * 2985 * @hide 2986 */ 2987 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 2988 2989 /** 2990 * Constant for {@link #importance}: This process is running an 2991 * application that can not save its state, and thus can't be killed 2992 * while in the background. 2993 * @hide 2994 */ 2995 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 2996 2997 /** 2998 * Constant for {@link #importance}: This process is contains services 2999 * that should remain running. These are background services apps have 3000 * started, not something the user is aware of, so they may be killed by 3001 * the system relatively freely (though it is generally desired that they 3002 * stay running as long as they want to). 3003 */ 3004 public static final int IMPORTANCE_SERVICE = 300; 3005 3006 /** 3007 * Constant for {@link #importance}: This process process contains 3008 * cached code that is expendable, not actively running any app components 3009 * we care about. 3010 */ 3011 public static final int IMPORTANCE_CACHED = 400; 3012 3013 /** 3014 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3015 */ 3016 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3017 3018 /** 3019 * Constant for {@link #importance}: This process is empty of any 3020 * actively running code. 3021 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3022 */ 3023 @Deprecated 3024 public static final int IMPORTANCE_EMPTY = 500; 3025 3026 /** 3027 * Constant for {@link #importance}: This process does not exist. 3028 */ 3029 public static final int IMPORTANCE_GONE = 1000; 3030 3031 /** 3032 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3033 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3034 * @hide 3035 */ 3036 public static @Importance int procStateToImportance(int procState) { 3037 if (procState == PROCESS_STATE_NONEXISTENT) { 3038 return IMPORTANCE_GONE; 3039 } else if (procState >= PROCESS_STATE_HOME) { 3040 return IMPORTANCE_CACHED; 3041 } else if (procState >= PROCESS_STATE_SERVICE) { 3042 return IMPORTANCE_SERVICE; 3043 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3044 return IMPORTANCE_CANT_SAVE_STATE; 3045 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3046 return IMPORTANCE_PERCEPTIBLE; 3047 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3048 return IMPORTANCE_VISIBLE; 3049 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3050 return IMPORTANCE_TOP_SLEEPING; 3051 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3052 return IMPORTANCE_FOREGROUND_SERVICE; 3053 } else { 3054 return IMPORTANCE_FOREGROUND; 3055 } 3056 } 3057 3058 /** 3059 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3060 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3061 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3062 * client's target SDK < {@link VERSION_CODES#O}. 3063 * @hide 3064 */ 3065 public static @Importance int procStateToImportanceForClient(int procState, 3066 Context clientContext) { 3067 return procStateToImportanceForTargetSdk(procState, 3068 clientContext.getApplicationInfo().targetSdkVersion); 3069 } 3070 3071 /** 3072 * See {@link #procStateToImportanceForClient}. 3073 * @hide 3074 */ 3075 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3076 int targetSdkVersion) { 3077 final int importance = procStateToImportance(procState); 3078 3079 // For pre O apps, convert to the old, wrong values. 3080 if (targetSdkVersion < VERSION_CODES.O) { 3081 switch (importance) { 3082 case IMPORTANCE_PERCEPTIBLE: 3083 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3084 case IMPORTANCE_CANT_SAVE_STATE: 3085 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3086 } 3087 } 3088 return importance; 3089 } 3090 3091 /** @hide */ 3092 public static int importanceToProcState(@Importance int importance) { 3093 if (importance == IMPORTANCE_GONE) { 3094 return PROCESS_STATE_NONEXISTENT; 3095 } else if (importance >= IMPORTANCE_CACHED) { 3096 return PROCESS_STATE_HOME; 3097 } else if (importance >= IMPORTANCE_SERVICE) { 3098 return PROCESS_STATE_SERVICE; 3099 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3100 return PROCESS_STATE_HEAVY_WEIGHT; 3101 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3102 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3103 } else if (importance >= IMPORTANCE_VISIBLE) { 3104 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3105 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3106 return PROCESS_STATE_TOP_SLEEPING; 3107 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3108 return PROCESS_STATE_FOREGROUND_SERVICE; 3109 } else { 3110 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3111 } 3112 } 3113 3114 /** 3115 * The relative importance level that the system places on this process. 3116 * These constants are numbered so that "more important" values are 3117 * always smaller than "less important" values. 3118 */ 3119 public @Importance int importance; 3120 3121 /** 3122 * An additional ordering within a particular {@link #importance} 3123 * category, providing finer-grained information about the relative 3124 * utility of processes within a category. This number means nothing 3125 * except that a smaller values are more recently used (and thus 3126 * more important). Currently an LRU value is only maintained for 3127 * the {@link #IMPORTANCE_CACHED} category, though others may 3128 * be maintained in the future. 3129 */ 3130 public int lru; 3131 3132 /** 3133 * Constant for {@link #importanceReasonCode}: nothing special has 3134 * been specified for the reason for this level. 3135 */ 3136 public static final int REASON_UNKNOWN = 0; 3137 3138 /** 3139 * Constant for {@link #importanceReasonCode}: one of the application's 3140 * content providers is being used by another process. The pid of 3141 * the client process is in {@link #importanceReasonPid} and the 3142 * target provider in this process is in 3143 * {@link #importanceReasonComponent}. 3144 */ 3145 public static final int REASON_PROVIDER_IN_USE = 1; 3146 3147 /** 3148 * Constant for {@link #importanceReasonCode}: one of the application's 3149 * content providers is being used by another process. The pid of 3150 * the client process is in {@link #importanceReasonPid} and the 3151 * target provider in this process is in 3152 * {@link #importanceReasonComponent}. 3153 */ 3154 public static final int REASON_SERVICE_IN_USE = 2; 3155 3156 /** 3157 * The reason for {@link #importance}, if any. 3158 */ 3159 public int importanceReasonCode; 3160 3161 /** 3162 * For the specified values of {@link #importanceReasonCode}, this 3163 * is the process ID of the other process that is a client of this 3164 * process. This will be 0 if no other process is using this one. 3165 */ 3166 public int importanceReasonPid; 3167 3168 /** 3169 * For the specified values of {@link #importanceReasonCode}, this 3170 * is the name of the component that is being used in this process. 3171 */ 3172 public ComponentName importanceReasonComponent; 3173 3174 /** 3175 * When {@link #importanceReasonPid} is non-0, this is the importance 3176 * of the other pid. @hide 3177 */ 3178 public int importanceReasonImportance; 3179 3180 /** 3181 * Current process state, as per PROCESS_STATE_* constants. 3182 * @hide 3183 */ 3184 public int processState; 3185 3186 public RunningAppProcessInfo() { 3187 importance = IMPORTANCE_FOREGROUND; 3188 importanceReasonCode = REASON_UNKNOWN; 3189 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3190 } 3191 3192 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3193 processName = pProcessName; 3194 pid = pPid; 3195 pkgList = pArr; 3196 } 3197 3198 public int describeContents() { 3199 return 0; 3200 } 3201 3202 public void writeToParcel(Parcel dest, int flags) { 3203 dest.writeString(processName); 3204 dest.writeInt(pid); 3205 dest.writeInt(uid); 3206 dest.writeStringArray(pkgList); 3207 dest.writeInt(this.flags); 3208 dest.writeInt(lastTrimLevel); 3209 dest.writeInt(importance); 3210 dest.writeInt(lru); 3211 dest.writeInt(importanceReasonCode); 3212 dest.writeInt(importanceReasonPid); 3213 ComponentName.writeToParcel(importanceReasonComponent, dest); 3214 dest.writeInt(importanceReasonImportance); 3215 dest.writeInt(processState); 3216 } 3217 3218 public void readFromParcel(Parcel source) { 3219 processName = source.readString(); 3220 pid = source.readInt(); 3221 uid = source.readInt(); 3222 pkgList = source.readStringArray(); 3223 flags = source.readInt(); 3224 lastTrimLevel = source.readInt(); 3225 importance = source.readInt(); 3226 lru = source.readInt(); 3227 importanceReasonCode = source.readInt(); 3228 importanceReasonPid = source.readInt(); 3229 importanceReasonComponent = ComponentName.readFromParcel(source); 3230 importanceReasonImportance = source.readInt(); 3231 processState = source.readInt(); 3232 } 3233 3234 public static final Creator<RunningAppProcessInfo> CREATOR = 3235 new Creator<RunningAppProcessInfo>() { 3236 public RunningAppProcessInfo createFromParcel(Parcel source) { 3237 return new RunningAppProcessInfo(source); 3238 } 3239 public RunningAppProcessInfo[] newArray(int size) { 3240 return new RunningAppProcessInfo[size]; 3241 } 3242 }; 3243 3244 private RunningAppProcessInfo(Parcel source) { 3245 readFromParcel(source); 3246 } 3247 } 3248 3249 /** 3250 * Returns a list of application processes installed on external media 3251 * that are running on the device. 3252 * 3253 * <p><b>Note: this method is only intended for debugging or building 3254 * a user-facing process management UI.</b></p> 3255 * 3256 * @return Returns a list of ApplicationInfo records, or null if none 3257 * This list ordering is not specified. 3258 * @hide 3259 */ 3260 public List<ApplicationInfo> getRunningExternalApplications() { 3261 try { 3262 return getService().getRunningExternalApplications(); 3263 } catch (RemoteException e) { 3264 throw e.rethrowFromSystemServer(); 3265 } 3266 } 3267 3268 /** 3269 * Sets the memory trim mode for a process and schedules a memory trim operation. 3270 * 3271 * <p><b>Note: this method is only intended for testing framework.</b></p> 3272 * 3273 * @return Returns true if successful. 3274 * @hide 3275 */ 3276 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3277 try { 3278 return getService().setProcessMemoryTrimLevel(process, userId, 3279 level); 3280 } catch (RemoteException e) { 3281 throw e.rethrowFromSystemServer(); 3282 } 3283 } 3284 3285 /** 3286 * Returns a list of application processes that are running on the device. 3287 * 3288 * <p><b>Note: this method is only intended for debugging or building 3289 * a user-facing process management UI.</b></p> 3290 * 3291 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3292 * running processes (it will not return an empty list). This list ordering is not 3293 * specified. 3294 */ 3295 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3296 try { 3297 return getService().getRunningAppProcesses(); 3298 } catch (RemoteException e) { 3299 throw e.rethrowFromSystemServer(); 3300 } 3301 } 3302 3303 /** 3304 * Return the importance of a given package name, based on the processes that are 3305 * currently running. The return value is one of the importance constants defined 3306 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3307 * processes that this package has code running inside of. If there are no processes 3308 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3309 * @hide 3310 */ 3311 @SystemApi @TestApi 3312 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3313 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3314 try { 3315 int procState = getService().getPackageProcessState(packageName, 3316 mContext.getOpPackageName()); 3317 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3318 } catch (RemoteException e) { 3319 throw e.rethrowFromSystemServer(); 3320 } 3321 } 3322 3323 /** 3324 * Return the importance of a given uid, based on the processes that are 3325 * currently running. The return value is one of the importance constants defined 3326 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3327 * processes that this uid has running. If there are no processes 3328 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3329 * @hide 3330 */ 3331 @SystemApi @TestApi 3332 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3333 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3334 try { 3335 int procState = getService().getUidProcessState(uid, 3336 mContext.getOpPackageName()); 3337 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3338 } catch (RemoteException e) { 3339 throw e.rethrowFromSystemServer(); 3340 } 3341 } 3342 3343 /** 3344 * Callback to get reports about changes to the importance of a uid. Use with 3345 * {@link #addOnUidImportanceListener}. 3346 * @hide 3347 */ 3348 @SystemApi @TestApi 3349 public interface OnUidImportanceListener { 3350 /** 3351 * The importance if a given uid has changed. Will be one of the importance 3352 * values in {@link RunningAppProcessInfo}; 3353 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3354 * when the uid is no longer running at all. This callback will happen on a thread 3355 * from a thread pool, not the main UI thread. 3356 * @param uid The uid whose importance has changed. 3357 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3358 */ 3359 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3360 } 3361 3362 /** 3363 * Start monitoring changes to the imoportance of uids running in the system. 3364 * @param listener The listener callback that will receive change reports. 3365 * @param importanceCutpoint The level of importance in which the caller is interested 3366 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3367 * is used here, you will receive a call each time a uids importance transitions between 3368 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3369 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3370 * 3371 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3372 * permission to use this feature.</p> 3373 * 3374 * @throws IllegalArgumentException If the listener is already registered. 3375 * @throws SecurityException If the caller does not hold 3376 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3377 * @hide 3378 */ 3379 @SystemApi @TestApi 3380 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3381 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3382 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3383 synchronized (this) { 3384 if (mImportanceListeners.containsKey(listener)) { 3385 throw new IllegalArgumentException("Listener already registered: " + listener); 3386 } 3387 // TODO: implement the cut point in the system process to avoid IPCs. 3388 UidObserver observer = new UidObserver(listener, mContext); 3389 try { 3390 getService().registerUidObserver(observer, 3391 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3392 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3393 mContext.getOpPackageName()); 3394 } catch (RemoteException e) { 3395 throw e.rethrowFromSystemServer(); 3396 } 3397 mImportanceListeners.put(listener, observer); 3398 } 3399 } 3400 3401 /** 3402 * Remove an importance listener that was previously registered with 3403 * {@link #addOnUidImportanceListener}. 3404 * 3405 * @throws IllegalArgumentException If the listener is not registered. 3406 * @hide 3407 */ 3408 @SystemApi @TestApi 3409 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3410 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3411 synchronized (this) { 3412 UidObserver observer = mImportanceListeners.remove(listener); 3413 if (observer == null) { 3414 throw new IllegalArgumentException("Listener not registered: " + listener); 3415 } 3416 try { 3417 getService().unregisterUidObserver(observer); 3418 } catch (RemoteException e) { 3419 throw e.rethrowFromSystemServer(); 3420 } 3421 } 3422 } 3423 3424 /** 3425 * Return global memory state information for the calling process. This 3426 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3427 * only fields that will be filled in are 3428 * {@link RunningAppProcessInfo#pid}, 3429 * {@link RunningAppProcessInfo#uid}, 3430 * {@link RunningAppProcessInfo#lastTrimLevel}, 3431 * {@link RunningAppProcessInfo#importance}, 3432 * {@link RunningAppProcessInfo#lru}, and 3433 * {@link RunningAppProcessInfo#importanceReasonCode}. 3434 */ 3435 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3436 try { 3437 getService().getMyMemoryState(outState); 3438 } catch (RemoteException e) { 3439 throw e.rethrowFromSystemServer(); 3440 } 3441 } 3442 3443 /** 3444 * Return information about the memory usage of one or more processes. 3445 * 3446 * <p><b>Note: this method is only intended for debugging or building 3447 * a user-facing process management UI.</b></p> 3448 * 3449 * @param pids The pids of the processes whose memory usage is to be 3450 * retrieved. 3451 * @return Returns an array of memory information, one for each 3452 * requested pid. 3453 */ 3454 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3455 try { 3456 return getService().getProcessMemoryInfo(pids); 3457 } catch (RemoteException e) { 3458 throw e.rethrowFromSystemServer(); 3459 } 3460 } 3461 3462 /** 3463 * @deprecated This is now just a wrapper for 3464 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3465 * is no longer available to applications because it allows them to 3466 * break other applications by removing their alarms, stopping their 3467 * services, etc. 3468 */ 3469 @Deprecated 3470 public void restartPackage(String packageName) { 3471 killBackgroundProcesses(packageName); 3472 } 3473 3474 /** 3475 * Have the system immediately kill all background processes associated 3476 * with the given package. This is the same as the kernel killing those 3477 * processes to reclaim memory; the system will take care of restarting 3478 * these processes in the future as needed. 3479 * 3480 * @param packageName The name of the package whose processes are to 3481 * be killed. 3482 */ 3483 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3484 public void killBackgroundProcesses(String packageName) { 3485 try { 3486 getService().killBackgroundProcesses(packageName, 3487 UserHandle.myUserId()); 3488 } catch (RemoteException e) { 3489 throw e.rethrowFromSystemServer(); 3490 } 3491 } 3492 3493 /** 3494 * Kills the specified UID. 3495 * @param uid The UID to kill. 3496 * @param reason The reason for the kill. 3497 * 3498 * @hide 3499 */ 3500 @SystemApi 3501 @RequiresPermission(Manifest.permission.KILL_UID) 3502 public void killUid(int uid, String reason) { 3503 try { 3504 getService().killUid(UserHandle.getAppId(uid), 3505 UserHandle.getUserId(uid), reason); 3506 } catch (RemoteException e) { 3507 throw e.rethrowFromSystemServer(); 3508 } 3509 } 3510 3511 /** 3512 * Have the system perform a force stop of everything associated with 3513 * the given application package. All processes that share its uid 3514 * will be killed, all services it has running stopped, all activities 3515 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3516 * broadcast will be sent, so that any of its registered alarms can 3517 * be stopped, notifications removed, etc. 3518 * 3519 * <p>You must hold the permission 3520 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3521 * call this method. 3522 * 3523 * @param packageName The name of the package to be stopped. 3524 * @param userId The user for which the running package is to be stopped. 3525 * 3526 * @hide This is not available to third party applications due to 3527 * it allowing them to break other applications by stopping their 3528 * services, removing their alarms, etc. 3529 */ 3530 public void forceStopPackageAsUser(String packageName, int userId) { 3531 try { 3532 getService().forceStopPackage(packageName, userId); 3533 } catch (RemoteException e) { 3534 throw e.rethrowFromSystemServer(); 3535 } 3536 } 3537 3538 /** 3539 * @see #forceStopPackageAsUser(String, int) 3540 * @hide 3541 */ 3542 @SystemApi 3543 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3544 public void forceStopPackage(String packageName) { 3545 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3546 } 3547 3548 /** 3549 * Get the device configuration attributes. 3550 */ 3551 public ConfigurationInfo getDeviceConfigurationInfo() { 3552 try { 3553 return getService().getDeviceConfigurationInfo(); 3554 } catch (RemoteException e) { 3555 throw e.rethrowFromSystemServer(); 3556 } 3557 } 3558 3559 /** 3560 * Get the preferred density of icons for the launcher. This is used when 3561 * custom drawables are created (e.g., for shortcuts). 3562 * 3563 * @return density in terms of DPI 3564 */ 3565 public int getLauncherLargeIconDensity() { 3566 final Resources res = mContext.getResources(); 3567 final int density = res.getDisplayMetrics().densityDpi; 3568 final int sw = res.getConfiguration().smallestScreenWidthDp; 3569 3570 if (sw < 600) { 3571 // Smaller than approx 7" tablets, use the regular icon size. 3572 return density; 3573 } 3574 3575 switch (density) { 3576 case DisplayMetrics.DENSITY_LOW: 3577 return DisplayMetrics.DENSITY_MEDIUM; 3578 case DisplayMetrics.DENSITY_MEDIUM: 3579 return DisplayMetrics.DENSITY_HIGH; 3580 case DisplayMetrics.DENSITY_TV: 3581 return DisplayMetrics.DENSITY_XHIGH; 3582 case DisplayMetrics.DENSITY_HIGH: 3583 return DisplayMetrics.DENSITY_XHIGH; 3584 case DisplayMetrics.DENSITY_XHIGH: 3585 return DisplayMetrics.DENSITY_XXHIGH; 3586 case DisplayMetrics.DENSITY_XXHIGH: 3587 return DisplayMetrics.DENSITY_XHIGH * 2; 3588 default: 3589 // The density is some abnormal value. Return some other 3590 // abnormal value that is a reasonable scaling of it. 3591 return (int)((density*1.5f)+.5f); 3592 } 3593 } 3594 3595 /** 3596 * Get the preferred launcher icon size. This is used when custom drawables 3597 * are created (e.g., for shortcuts). 3598 * 3599 * @return dimensions of square icons in terms of pixels 3600 */ 3601 public int getLauncherLargeIconSize() { 3602 return getLauncherLargeIconSizeInner(mContext); 3603 } 3604 3605 static int getLauncherLargeIconSizeInner(Context context) { 3606 final Resources res = context.getResources(); 3607 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3608 final int sw = res.getConfiguration().smallestScreenWidthDp; 3609 3610 if (sw < 600) { 3611 // Smaller than approx 7" tablets, use the regular icon size. 3612 return size; 3613 } 3614 3615 final int density = res.getDisplayMetrics().densityDpi; 3616 3617 switch (density) { 3618 case DisplayMetrics.DENSITY_LOW: 3619 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3620 case DisplayMetrics.DENSITY_MEDIUM: 3621 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3622 case DisplayMetrics.DENSITY_TV: 3623 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3624 case DisplayMetrics.DENSITY_HIGH: 3625 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3626 case DisplayMetrics.DENSITY_XHIGH: 3627 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3628 case DisplayMetrics.DENSITY_XXHIGH: 3629 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3630 default: 3631 // The density is some abnormal value. Return some other 3632 // abnormal value that is a reasonable scaling of it. 3633 return (int)((size*1.5f) + .5f); 3634 } 3635 } 3636 3637 /** 3638 * Returns "true" if the user interface is currently being messed with 3639 * by a monkey. 3640 */ 3641 public static boolean isUserAMonkey() { 3642 try { 3643 return getService().isUserAMonkey(); 3644 } catch (RemoteException e) { 3645 throw e.rethrowFromSystemServer(); 3646 } 3647 } 3648 3649 /** 3650 * Returns "true" if device is running in a test harness. 3651 */ 3652 public static boolean isRunningInTestHarness() { 3653 return SystemProperties.getBoolean("ro.test_harness", false); 3654 } 3655 3656 /** 3657 * Returns the launch count of each installed package. 3658 * 3659 * @hide 3660 */ 3661 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3662 try { 3663 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3664 ServiceManager.getService("usagestats")); 3665 if (usageStatsService == null) { 3666 return new HashMap<String, Integer>(); 3667 } 3668 3669 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3670 ActivityThread.currentPackageName()); 3671 if (allPkgUsageStats == null) { 3672 return new HashMap<String, Integer>(); 3673 } 3674 3675 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3676 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3677 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3678 } 3679 3680 return launchCounts; 3681 } catch (RemoteException e) { 3682 Log.w(TAG, "Could not query launch counts", e); 3683 return new HashMap<String, Integer>(); 3684 } 3685 }*/ 3686 3687 /** @hide */ 3688 public static int checkComponentPermission(String permission, int uid, 3689 int owningUid, boolean exported) { 3690 // Root, system server get to do everything. 3691 final int appId = UserHandle.getAppId(uid); 3692 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3693 return PackageManager.PERMISSION_GRANTED; 3694 } 3695 // Isolated processes don't get any permissions. 3696 if (UserHandle.isIsolated(uid)) { 3697 return PackageManager.PERMISSION_DENIED; 3698 } 3699 // If there is a uid that owns whatever is being accessed, it has 3700 // blanket access to it regardless of the permissions it requires. 3701 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3702 return PackageManager.PERMISSION_GRANTED; 3703 } 3704 // If the target is not exported, then nobody else can get to it. 3705 if (!exported) { 3706 /* 3707 RuntimeException here = new RuntimeException("here"); 3708 here.fillInStackTrace(); 3709 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3710 here); 3711 */ 3712 return PackageManager.PERMISSION_DENIED; 3713 } 3714 if (permission == null) { 3715 return PackageManager.PERMISSION_GRANTED; 3716 } 3717 try { 3718 return AppGlobals.getPackageManager() 3719 .checkUidPermission(permission, uid); 3720 } catch (RemoteException e) { 3721 throw e.rethrowFromSystemServer(); 3722 } 3723 } 3724 3725 /** @hide */ 3726 public static int checkUidPermission(String permission, int uid) { 3727 try { 3728 return AppGlobals.getPackageManager() 3729 .checkUidPermission(permission, uid); 3730 } catch (RemoteException e) { 3731 throw e.rethrowFromSystemServer(); 3732 } 3733 } 3734 3735 /** 3736 * @hide 3737 * Helper for dealing with incoming user arguments to system service calls. 3738 * Takes care of checking permissions and converting USER_CURRENT to the 3739 * actual current user. 3740 * 3741 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3742 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3743 * @param userId The user id argument supplied by the caller -- this is the user 3744 * they want to run as. 3745 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3746 * to get a USER_ALL returned and deal with it correctly. If false, 3747 * an exception will be thrown if USER_ALL is supplied. 3748 * @param requireFull If true, the caller must hold 3749 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3750 * different user than their current process; otherwise they must hold 3751 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3752 * @param name Optional textual name of the incoming call; only for generating error messages. 3753 * @param callerPackage Optional package name of caller; only for error messages. 3754 * 3755 * @return Returns the user ID that the call should run as. Will always be a concrete 3756 * user number, unless <var>allowAll</var> is true in which case it could also be 3757 * USER_ALL. 3758 */ 3759 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3760 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3761 if (UserHandle.getUserId(callingUid) == userId) { 3762 return userId; 3763 } 3764 try { 3765 return getService().handleIncomingUser(callingPid, 3766 callingUid, userId, allowAll, requireFull, name, callerPackage); 3767 } catch (RemoteException e) { 3768 throw e.rethrowFromSystemServer(); 3769 } 3770 } 3771 3772 /** 3773 * Gets the userId of the current foreground user. Requires system permissions. 3774 * @hide 3775 */ 3776 @SystemApi 3777 @RequiresPermission(anyOf = { 3778 "android.permission.INTERACT_ACROSS_USERS", 3779 "android.permission.INTERACT_ACROSS_USERS_FULL" 3780 }) 3781 public static int getCurrentUser() { 3782 UserInfo ui; 3783 try { 3784 ui = getService().getCurrentUser(); 3785 return ui != null ? ui.id : 0; 3786 } catch (RemoteException e) { 3787 throw e.rethrowFromSystemServer(); 3788 } 3789 } 3790 3791 /** 3792 * @param userid the user's id. Zero indicates the default user. 3793 * @hide 3794 */ 3795 public boolean switchUser(int userid) { 3796 try { 3797 return getService().switchUser(userid); 3798 } catch (RemoteException e) { 3799 throw e.rethrowFromSystemServer(); 3800 } 3801 } 3802 3803 /** 3804 * Logs out current current foreground user by switching to the system user and stopping the 3805 * user being switched from. 3806 * @hide 3807 */ 3808 public static void logoutCurrentUser() { 3809 int currentUser = ActivityManager.getCurrentUser(); 3810 if (currentUser != UserHandle.USER_SYSTEM) { 3811 try { 3812 getService().switchUser(UserHandle.USER_SYSTEM); 3813 getService().stopUser(currentUser, /* force= */ false, null); 3814 } catch (RemoteException e) { 3815 e.rethrowFromSystemServer(); 3816 } 3817 } 3818 } 3819 3820 /** {@hide} */ 3821 public static final int FLAG_OR_STOPPED = 1 << 0; 3822 /** {@hide} */ 3823 public static final int FLAG_AND_LOCKED = 1 << 1; 3824 /** {@hide} */ 3825 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3826 /** {@hide} */ 3827 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3828 3829 /** 3830 * Return whether the given user is actively running. This means that 3831 * the user is in the "started" state, not "stopped" -- it is currently 3832 * allowed to run code through scheduled alarms, receiving broadcasts, 3833 * etc. A started user may be either the current foreground user or a 3834 * background user; the result here does not distinguish between the two. 3835 * @param userId the user's id. Zero indicates the default user. 3836 * @hide 3837 */ 3838 public boolean isUserRunning(int userId) { 3839 try { 3840 return getService().isUserRunning(userId, 0); 3841 } catch (RemoteException e) { 3842 throw e.rethrowFromSystemServer(); 3843 } 3844 } 3845 3846 /** {@hide} */ 3847 public boolean isVrModePackageEnabled(ComponentName component) { 3848 try { 3849 return getService().isVrModePackageEnabled(component); 3850 } catch (RemoteException e) { 3851 throw e.rethrowFromSystemServer(); 3852 } 3853 } 3854 3855 /** 3856 * Perform a system dump of various state associated with the given application 3857 * package name. This call blocks while the dump is being performed, so should 3858 * not be done on a UI thread. The data will be written to the given file 3859 * descriptor as text. 3860 * @param fd The file descriptor that the dump should be written to. The file 3861 * descriptor is <em>not</em> closed by this function; the caller continues to 3862 * own it. 3863 * @param packageName The name of the package that is to be dumped. 3864 */ 3865 @RequiresPermission(Manifest.permission.DUMP) 3866 public void dumpPackageState(FileDescriptor fd, String packageName) { 3867 dumpPackageStateStatic(fd, packageName); 3868 } 3869 3870 /** 3871 * @hide 3872 */ 3873 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3874 FileOutputStream fout = new FileOutputStream(fd); 3875 PrintWriter pw = new FastPrintWriter(fout); 3876 dumpService(pw, fd, "package", new String[] { packageName }); 3877 pw.println(); 3878 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3879 "-a", "package", packageName }); 3880 pw.println(); 3881 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3882 pw.println(); 3883 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3884 pw.println(); 3885 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3886 pw.println(); 3887 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3888 pw.flush(); 3889 } 3890 3891 /** 3892 * @hide 3893 */ 3894 public static boolean isSystemReady() { 3895 if (!sSystemReady) { 3896 if (ActivityThread.isSystem()) { 3897 sSystemReady = 3898 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3899 } else { 3900 // Since this is being called from outside system server, system should be 3901 // ready by now. 3902 sSystemReady = true; 3903 } 3904 } 3905 return sSystemReady; 3906 } 3907 3908 /** 3909 * @hide 3910 */ 3911 public static void broadcastStickyIntent(Intent intent, int userId) { 3912 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3913 } 3914 3915 /** 3916 * Convenience for sending a sticky broadcast. For internal use only. 3917 * 3918 * @hide 3919 */ 3920 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3921 try { 3922 getService().broadcastIntent( 3923 null, intent, null, null, Activity.RESULT_OK, null, null, 3924 null /*permission*/, appOp, null, false, true, userId); 3925 } catch (RemoteException ex) { 3926 } 3927 } 3928 3929 /** 3930 * @hide 3931 */ 3932 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3933 String tag) { 3934 try { 3935 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3936 sourceUid, sourcePkg, tag); 3937 } catch (RemoteException ex) { 3938 } 3939 } 3940 3941 /** 3942 * @hide 3943 */ 3944 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3945 try { 3946 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3947 } catch (RemoteException ex) { 3948 } 3949 } 3950 3951 /** 3952 * @hide 3953 */ 3954 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3955 try { 3956 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3957 } catch (RemoteException ex) { 3958 } 3959 } 3960 3961 /** 3962 * @hide 3963 */ 3964 public static IActivityManager getService() { 3965 return IActivityManagerSingleton.get(); 3966 } 3967 3968 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3969 new Singleton<IActivityManager>() { 3970 @Override 3971 protected IActivityManager create() { 3972 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3973 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3974 return am; 3975 } 3976 }; 3977 3978 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3979 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3980 IBinder service = ServiceManager.checkService(name); 3981 if (service == null) { 3982 pw.println(" (Service not found)"); 3983 return; 3984 } 3985 TransferPipe tp = null; 3986 try { 3987 pw.flush(); 3988 tp = new TransferPipe(); 3989 tp.setBufferPrefix(" "); 3990 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3991 tp.go(fd, 10000); 3992 } catch (Throwable e) { 3993 if (tp != null) { 3994 tp.kill(); 3995 } 3996 pw.println("Failure dumping service:"); 3997 e.printStackTrace(pw); 3998 } 3999 } 4000 4001 /** 4002 * Request that the system start watching for the calling process to exceed a pss 4003 * size as given here. Once called, the system will look for any occasions where it 4004 * sees the associated process with a larger pss size and, when this happens, automatically 4005 * pull a heap dump from it and allow the user to share the data. Note that this request 4006 * continues running even if the process is killed and restarted. To remove the watch, 4007 * use {@link #clearWatchHeapLimit()}. 4008 * 4009 * <p>This API only work if the calling process has been marked as 4010 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4011 * (userdebug or eng) build.</p> 4012 * 4013 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4014 * handle heap limit reports themselves.</p> 4015 * 4016 * @param pssSize The size in bytes to set the limit at. 4017 */ 4018 public void setWatchHeapLimit(long pssSize) { 4019 try { 4020 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4021 mContext.getPackageName()); 4022 } catch (RemoteException e) { 4023 throw e.rethrowFromSystemServer(); 4024 } 4025 } 4026 4027 /** 4028 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4029 * If your package has an activity handling this action, it will be launched with the 4030 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4031 * match the activty must support this action and a MIME type of "*/*". 4032 */ 4033 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4034 4035 /** 4036 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4037 */ 4038 public void clearWatchHeapLimit() { 4039 try { 4040 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4041 } catch (RemoteException e) { 4042 throw e.rethrowFromSystemServer(); 4043 } 4044 } 4045 4046 /** 4047 * Return whether currently in lock task mode. When in this mode 4048 * no new tasks can be created or switched to. 4049 * 4050 * @see Activity#startLockTask() 4051 * 4052 * @deprecated Use {@link #getLockTaskModeState} instead. 4053 */ 4054 @Deprecated 4055 public boolean isInLockTaskMode() { 4056 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4057 } 4058 4059 /** 4060 * Return the current state of task locking. The three possible outcomes 4061 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4062 * and {@link #LOCK_TASK_MODE_PINNED}. 4063 * 4064 * @see Activity#startLockTask() 4065 */ 4066 public int getLockTaskModeState() { 4067 try { 4068 return getService().getLockTaskModeState(); 4069 } catch (RemoteException e) { 4070 throw e.rethrowFromSystemServer(); 4071 } 4072 } 4073 4074 /** 4075 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4076 * thread can be a VR thread in a process at a time, and that thread may be subject to 4077 * restrictions on the amount of time it can run. 4078 * 4079 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4080 * method will return to normal operation, and calling this method will do nothing while 4081 * persistent VR mode is enabled. 4082 * 4083 * To reset the VR thread for an application, a tid of 0 can be passed. 4084 * 4085 * @see android.os.Process#myTid() 4086 * @param tid tid of the VR thread 4087 */ 4088 public static void setVrThread(int tid) { 4089 try { 4090 getService().setVrThread(tid); 4091 } catch (RemoteException e) { 4092 // pass 4093 } 4094 } 4095 4096 /** 4097 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4098 * beyond a single process. Only one thread can be a 4099 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4100 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4101 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4102 * persistent VR thread loses its new scheduling priority; this method must be called again to 4103 * set the persistent thread. 4104 * 4105 * To reset the persistent VR thread, a tid of 0 can be passed. 4106 * 4107 * @see android.os.Process#myTid() 4108 * @param tid tid of the VR thread 4109 * @hide 4110 */ 4111 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4112 public static void setPersistentVrThread(int tid) { 4113 try { 4114 getService().setPersistentVrThread(tid); 4115 } catch (RemoteException e) { 4116 // pass 4117 } 4118 } 4119 4120 /** 4121 * The AppTask allows you to manage your own application's tasks. 4122 * See {@link android.app.ActivityManager#getAppTasks()} 4123 */ 4124 public static class AppTask { 4125 private IAppTask mAppTaskImpl; 4126 4127 /** @hide */ 4128 public AppTask(IAppTask task) { 4129 mAppTaskImpl = task; 4130 } 4131 4132 /** 4133 * Finishes all activities in this task and removes it from the recent tasks list. 4134 */ 4135 public void finishAndRemoveTask() { 4136 try { 4137 mAppTaskImpl.finishAndRemoveTask(); 4138 } catch (RemoteException e) { 4139 throw e.rethrowFromSystemServer(); 4140 } 4141 } 4142 4143 /** 4144 * Get the RecentTaskInfo associated with this task. 4145 * 4146 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4147 */ 4148 public RecentTaskInfo getTaskInfo() { 4149 try { 4150 return mAppTaskImpl.getTaskInfo(); 4151 } catch (RemoteException e) { 4152 throw e.rethrowFromSystemServer(); 4153 } 4154 } 4155 4156 /** 4157 * Bring this task to the foreground. If it contains activities, they will be 4158 * brought to the foreground with it and their instances re-created if needed. 4159 * If it doesn't contain activities, the root activity of the task will be 4160 * re-launched. 4161 */ 4162 public void moveToFront() { 4163 try { 4164 mAppTaskImpl.moveToFront(); 4165 } catch (RemoteException e) { 4166 throw e.rethrowFromSystemServer(); 4167 } 4168 } 4169 4170 /** 4171 * Start an activity in this task. Brings the task to the foreground. If this task 4172 * is not currently active (that is, its id < 0), then a new activity for the given 4173 * Intent will be launched as the root of the task and the task brought to the 4174 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4175 * an activity to launch in a new task, then a new activity for the given Intent will 4176 * be launched on top of the task and the task brought to the foreground. If this 4177 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4178 * or would otherwise be launched in to a new task, then the activity not launched but 4179 * this task be brought to the foreground and a new intent delivered to the top 4180 * activity if appropriate. 4181 * 4182 * <p>In other words, you generally want to use an Intent here that does not specify 4183 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4184 * and let the system do the right thing.</p> 4185 * 4186 * @param intent The Intent describing the new activity to be launched on the task. 4187 * @param options Optional launch options. 4188 * 4189 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4190 */ 4191 public void startActivity(Context context, Intent intent, Bundle options) { 4192 ActivityThread thread = ActivityThread.currentActivityThread(); 4193 thread.getInstrumentation().execStartActivityFromAppTask(context, 4194 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4195 } 4196 4197 /** 4198 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4199 * Intent of this AppTask. 4200 * 4201 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4202 * be set; otherwise, it will be cleared. 4203 */ 4204 public void setExcludeFromRecents(boolean exclude) { 4205 try { 4206 mAppTaskImpl.setExcludeFromRecents(exclude); 4207 } catch (RemoteException e) { 4208 throw e.rethrowFromSystemServer(); 4209 } 4210 } 4211 } 4212} 4213