ActivityManager.java revision d9e1df58be2882d025aa0585e0258742afad21cb
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.DrawableRes; 21import android.annotation.IntDef; 22import android.annotation.NonNull; 23import android.annotation.Nullable; 24import android.annotation.RequiresPermission; 25import android.annotation.SystemApi; 26import android.annotation.SystemService; 27import android.annotation.TestApi; 28import android.content.ComponentName; 29import android.content.Context; 30import android.content.Intent; 31import android.content.UriPermission; 32import android.content.pm.ActivityInfo; 33import android.content.pm.ApplicationInfo; 34import android.content.pm.ConfigurationInfo; 35import android.content.pm.IPackageDataObserver; 36import android.content.pm.PackageManager; 37import android.content.pm.ParceledListSlice; 38import android.content.pm.UserInfo; 39import android.content.res.Configuration; 40import android.content.res.Resources; 41import android.graphics.Bitmap; 42import android.graphics.Canvas; 43import android.graphics.Color; 44import android.graphics.GraphicBuffer; 45import android.graphics.Matrix; 46import android.graphics.Point; 47import android.graphics.Rect; 48import android.os.BatteryStats; 49import android.os.Binder; 50import android.os.Build; 51import android.os.Build.VERSION_CODES; 52import android.os.Bundle; 53import android.os.Debug; 54import android.os.Handler; 55import android.os.IBinder; 56import android.os.Parcel; 57import android.os.Parcelable; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ServiceManager; 61import android.os.SystemProperties; 62import android.os.UserHandle; 63import android.os.WorkSource; 64import android.text.TextUtils; 65import android.util.ArrayMap; 66import android.util.DisplayMetrics; 67import android.util.Singleton; 68import android.util.Size; 69 70import com.android.internal.app.procstats.ProcessStats; 71import com.android.internal.os.RoSystemProperties; 72import com.android.internal.os.TransferPipe; 73import com.android.internal.util.FastPrintWriter; 74import com.android.server.LocalServices; 75 76import org.xmlpull.v1.XmlSerializer; 77 78import java.io.FileDescriptor; 79import java.io.FileOutputStream; 80import java.io.IOException; 81import java.io.PrintWriter; 82import java.lang.annotation.Retention; 83import java.lang.annotation.RetentionPolicy; 84import java.util.ArrayList; 85import java.util.List; 86 87/** 88 * <p> 89 * This class gives information about, and interacts 90 * with, activities, services, and the containing 91 * process. 92 * </p> 93 * 94 * <p> 95 * A number of the methods in this class are for 96 * debugging or informational purposes and they should 97 * not be used to affect any runtime behavior of 98 * your app. These methods are called out as such in 99 * the method level documentation. 100 * </p> 101 * 102 *<p> 103 * Most application developers should not have the need to 104 * use this class, most of whose methods are for specialized 105 * use cases. However, a few methods are more broadly applicable. 106 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 107 * enables your app to detect whether it is running on a low-memory device, 108 * and behave accordingly. 109 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 110 * is for apps with reset-data functionality. 111 * </p> 112 * 113 * <p> 114 * In some special use cases, where an app interacts with 115 * its Task stack, the app may use the 116 * {@link android.app.ActivityManager.AppTask} and 117 * {@link android.app.ActivityManager.RecentTaskInfo} inner 118 * classes. However, in general, the methods in this class should 119 * be used for testing and debugging purposes only. 120 * </p> 121 */ 122@SystemService(Context.ACTIVITY_SERVICE) 123public class ActivityManager { 124 private static String TAG = "ActivityManager"; 125 126 private static int gMaxRecentTasks = -1; 127 128 private final Context mContext; 129 130 private static volatile boolean sSystemReady = false; 131 132 133 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 134 private static final int LAST_START_FATAL_ERROR_CODE = -1; 135 private static final int FIRST_START_SUCCESS_CODE = 0; 136 private static final int LAST_START_SUCCESS_CODE = 99; 137 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 138 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 139 140 static final class UidObserver extends IUidObserver.Stub { 141 final OnUidImportanceListener mListener; 142 final Context mContext; 143 144 UidObserver(OnUidImportanceListener listener, Context clientContext) { 145 mListener = listener; 146 mContext = clientContext; 147 } 148 149 @Override 150 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 151 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 152 procState, mContext)); 153 } 154 155 @Override 156 public void onUidGone(int uid, boolean disabled) { 157 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 158 } 159 160 @Override 161 public void onUidActive(int uid) { 162 } 163 164 @Override 165 public void onUidIdle(int uid, boolean disabled) { 166 } 167 168 @Override public void onUidCachedChanged(int uid, boolean cached) { 169 } 170 } 171 172 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 173 174 /** 175 * Defines acceptable types of bugreports. 176 * @hide 177 */ 178 @Retention(RetentionPolicy.SOURCE) 179 @IntDef(prefix = { "BUGREPORT_OPTION_" }, value = { 180 BUGREPORT_OPTION_FULL, 181 BUGREPORT_OPTION_INTERACTIVE, 182 BUGREPORT_OPTION_REMOTE, 183 BUGREPORT_OPTION_WEAR, 184 BUGREPORT_OPTION_TELEPHONY, 185 BUGREPORT_OPTION_WIFI 186 }) 187 public @interface BugreportMode {} 188 /** 189 * Takes a bugreport without user interference (and hence causing less 190 * interference to the system), but includes all sections. 191 * @hide 192 */ 193 public static final int BUGREPORT_OPTION_FULL = 0; 194 /** 195 * Allows user to monitor progress and enter additional data; might not include all 196 * sections. 197 * @hide 198 */ 199 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 200 /** 201 * Takes a bugreport requested remotely by administrator of the Device Owner app, 202 * not the device's user. 203 * @hide 204 */ 205 public static final int BUGREPORT_OPTION_REMOTE = 2; 206 /** 207 * Takes a bugreport on a wearable device. 208 * @hide 209 */ 210 public static final int BUGREPORT_OPTION_WEAR = 3; 211 212 /** 213 * Takes a lightweight version of bugreport that only includes a few, urgent sections 214 * used to report telephony bugs. 215 * @hide 216 */ 217 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 218 219 /** 220 * Takes a lightweight bugreport that only includes a few sections related to Wifi. 221 * @hide 222 */ 223 public static final int BUGREPORT_OPTION_WIFI = 5; 224 225 /** 226 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 227 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 228 * uninstalled in lieu of the declaring one. The package named here must be 229 * signed with the same certificate as the one declaring the {@code <meta-data>}. 230 */ 231 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 232 233 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 234 // result is properly categorized. 235 236 /** 237 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 238 * @hide 239 */ 240 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 241 242 /** 243 * Result for IActivityManager.startVoiceActivity: active session does not match 244 * the requesting token. 245 * @hide 246 */ 247 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 248 249 /** 250 * Result for IActivityManager.startActivity: trying to start a background user 251 * activity that shouldn't be displayed for all users. 252 * @hide 253 */ 254 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 255 256 /** 257 * Result for IActivityManager.startActivity: trying to start an activity under voice 258 * control when that activity does not support the VOICE category. 259 * @hide 260 */ 261 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 262 263 /** 264 * Result for IActivityManager.startActivity: an error where the 265 * start had to be canceled. 266 * @hide 267 */ 268 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 269 270 /** 271 * Result for IActivityManager.startActivity: an error where the 272 * thing being started is not an activity. 273 * @hide 274 */ 275 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 276 277 /** 278 * Result for IActivityManager.startActivity: an error where the 279 * caller does not have permission to start the activity. 280 * @hide 281 */ 282 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 283 284 /** 285 * Result for IActivityManager.startActivity: an error where the 286 * caller has requested both to forward a result and to receive 287 * a result. 288 * @hide 289 */ 290 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 291 292 /** 293 * Result for IActivityManager.startActivity: an error where the 294 * requested class is not found. 295 * @hide 296 */ 297 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 298 299 /** 300 * Result for IActivityManager.startActivity: an error where the 301 * given Intent could not be resolved to an activity. 302 * @hide 303 */ 304 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 305 306 /** 307 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 308 * @hide 309 */ 310 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 311 312 /** 313 * Result for IActivityManager.startAssistantActivity: active session does not match 314 * the requesting token. 315 * @hide 316 */ 317 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 318 319 /** 320 * Result for IActivityManaqer.startActivity: the activity was started 321 * successfully as normal. 322 * @hide 323 */ 324 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 325 326 /** 327 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 328 * be executed if it is the recipient, and that is indeed the case. 329 * @hide 330 */ 331 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 332 333 /** 334 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 335 * a task was simply brought to the foreground. 336 * @hide 337 */ 338 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 339 340 /** 341 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 342 * the given Intent was given to the existing top activity. 343 * @hide 344 */ 345 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 346 347 /** 348 * Result for IActivityManaqer.startActivity: request was canceled because 349 * app switches are temporarily canceled to ensure the user's last request 350 * (such as pressing home) is performed. 351 * @hide 352 */ 353 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 354 355 /** 356 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 357 * while in Lock Task Mode. 358 * @hide 359 */ 360 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 361 FIRST_START_NON_FATAL_ERROR_CODE + 1; 362 363 /** 364 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 365 * externally. 366 * @hide 367 */ 368 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 369 370 /** 371 * Flag for IActivityManaqer.startActivity: do special start mode where 372 * a new activity is launched only if it is needed. 373 * @hide 374 */ 375 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 376 377 /** 378 * Flag for IActivityManaqer.startActivity: launch the app for 379 * debugging. 380 * @hide 381 */ 382 public static final int START_FLAG_DEBUG = 1<<1; 383 384 /** 385 * Flag for IActivityManaqer.startActivity: launch the app for 386 * allocation tracking. 387 * @hide 388 */ 389 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 390 391 /** 392 * Flag for IActivityManaqer.startActivity: launch the app with 393 * native debugging support. 394 * @hide 395 */ 396 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 397 398 /** 399 * Result for IActivityManaqer.broadcastIntent: success! 400 * @hide 401 */ 402 public static final int BROADCAST_SUCCESS = 0; 403 404 /** 405 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 406 * a sticky intent without appropriate permission. 407 * @hide 408 */ 409 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 410 411 /** 412 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 413 * to a stopped user. Fail. 414 * @hide 415 */ 416 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 417 418 /** 419 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 420 * for a sendBroadcast operation. 421 * @hide 422 */ 423 public static final int INTENT_SENDER_BROADCAST = 1; 424 425 /** 426 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 427 * for a startActivity operation. 428 * @hide 429 */ 430 public static final int INTENT_SENDER_ACTIVITY = 2; 431 432 /** 433 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 434 * for an activity result operation. 435 * @hide 436 */ 437 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 438 439 /** 440 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 441 * for a startService operation. 442 * @hide 443 */ 444 public static final int INTENT_SENDER_SERVICE = 4; 445 446 /** 447 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 448 * for a startForegroundService operation. 449 * @hide 450 */ 451 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 452 453 /** @hide User operation call: success! */ 454 public static final int USER_OP_SUCCESS = 0; 455 456 /** @hide User operation call: given user id is not known. */ 457 public static final int USER_OP_UNKNOWN_USER = -1; 458 459 /** @hide User operation call: given user id is the current user, can't be stopped. */ 460 public static final int USER_OP_IS_CURRENT = -2; 461 462 /** @hide User operation call: system user can't be stopped. */ 463 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 464 465 /** @hide User operation call: one of related users cannot be stopped. */ 466 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 467 468 /** 469 * @hide 470 * Process states, describing the kind of state a particular process is in. 471 * When updating these, make sure to also check all related references to the 472 * constant in code, and update these arrays: 473 * 474 * @see com.android.internal.app.procstats.ProcessState#PROCESS_STATE_TO_STATE 475 * @see com.android.server.am.ProcessList#sProcStateToProcMem 476 * @see com.android.server.am.ProcessList#sFirstAwakePssTimes 477 * @see com.android.server.am.ProcessList#sSameAwakePssTimes 478 * @see com.android.server.am.ProcessList#sTestFirstPssTimes 479 * @see com.android.server.am.ProcessList#sTestSamePssTimes 480 */ 481 482 /** @hide Not a real process state. */ 483 public static final int PROCESS_STATE_UNKNOWN = -1; 484 485 /** @hide Process is a persistent system process. */ 486 public static final int PROCESS_STATE_PERSISTENT = 0; 487 488 /** @hide Process is a persistent system process and is doing UI. */ 489 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 490 491 /** @hide Process is hosting the current top activities. Note that this covers 492 * all activities that are visible to the user. */ 493 public static final int PROCESS_STATE_TOP = 2; 494 495 /** @hide Process is hosting a foreground service. */ 496 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 3; 497 498 /** @hide Process is hosting a foreground service due to a system binding. */ 499 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 4; 500 501 /** @hide Process is important to the user, and something they are aware of. */ 502 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 5; 503 504 /** @hide Process is important to the user, but not something they are aware of. */ 505 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 6; 506 507 /** @hide Process is in the background transient so we will try to keep running. */ 508 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 7; 509 510 /** @hide Process is in the background running a backup/restore operation. */ 511 public static final int PROCESS_STATE_BACKUP = 8; 512 513 /** @hide Process is in the background running a service. Unlike oom_adj, this level 514 * is used for both the normal running in background state and the executing 515 * operations state. */ 516 public static final int PROCESS_STATE_SERVICE = 9; 517 518 /** @hide Process is in the background running a receiver. Note that from the 519 * perspective of oom_adj, receivers run at a higher foreground level, but for our 520 * prioritization here that is not necessary and putting them below services means 521 * many fewer changes in some process states as they receive broadcasts. */ 522 public static final int PROCESS_STATE_RECEIVER = 10; 523 524 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 525 public static final int PROCESS_STATE_TOP_SLEEPING = 11; 526 527 /** @hide Process is in the background, but it can't restore its state so we want 528 * to try to avoid killing it. */ 529 public static final int PROCESS_STATE_HEAVY_WEIGHT = 12; 530 531 /** @hide Process is in the background but hosts the home activity. */ 532 public static final int PROCESS_STATE_HOME = 13; 533 534 /** @hide Process is in the background but hosts the last shown activity. */ 535 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 536 537 /** @hide Process is being cached for later use and contains activities. */ 538 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 539 540 /** @hide Process is being cached for later use and is a client of another cached 541 * process that contains activities. */ 542 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 543 544 /** @hide Process is being cached for later use and has an activity that corresponds 545 * to an existing recent task. */ 546 public static final int PROCESS_STATE_CACHED_RECENT = 17; 547 548 /** @hide Process is being cached for later use and is empty. */ 549 public static final int PROCESS_STATE_CACHED_EMPTY = 18; 550 551 /** @hide Process does not exist. */ 552 public static final int PROCESS_STATE_NONEXISTENT = 19; 553 554 // NOTE: If PROCESS_STATEs are added or changed, then new fields must be added 555 // to frameworks/base/core/proto/android/app/activitymanager.proto and the following method must 556 // be updated to correctly map between them. 557 /** 558 * Maps ActivityManager.PROCESS_STATE_ values to ProcessState enum. 559 * 560 * @param amInt a process state of the form ActivityManager.PROCESS_STATE_ 561 * @return the value of the corresponding ActivityManager's ProcessState enum. 562 * @hide 563 */ 564 public static final int processStateAmToProto(int amInt) { 565 return amInt * 100; 566 } 567 568 /** @hide The lowest process state number */ 569 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 570 571 /** @hide The highest process state number */ 572 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 573 574 /** @hide Should this process state be considered a background state? */ 575 public static final boolean isProcStateBackground(int procState) { 576 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 577 } 578 579 /** @hide requestType for assist context: only basic information. */ 580 public static final int ASSIST_CONTEXT_BASIC = 0; 581 582 /** @hide requestType for assist context: generate full AssistStructure. */ 583 public static final int ASSIST_CONTEXT_FULL = 1; 584 585 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 586 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 587 588 /** @hide Flag for registerUidObserver: report changes in process state. */ 589 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 590 591 /** @hide Flag for registerUidObserver: report uid gone. */ 592 public static final int UID_OBSERVER_GONE = 1<<1; 593 594 /** @hide Flag for registerUidObserver: report uid has become idle. */ 595 public static final int UID_OBSERVER_IDLE = 1<<2; 596 597 /** @hide Flag for registerUidObserver: report uid has become active. */ 598 public static final int UID_OBSERVER_ACTIVE = 1<<3; 599 600 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 601 public static final int UID_OBSERVER_CACHED = 1<<4; 602 603 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 604 public static final int APP_START_MODE_NORMAL = 0; 605 606 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 607 public static final int APP_START_MODE_DELAYED = 1; 608 609 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 610 * rigid errors (throwing exception). */ 611 public static final int APP_START_MODE_DELAYED_RIGID = 2; 612 613 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 614 * launches; this is the mode for ephemeral apps. */ 615 public static final int APP_START_MODE_DISABLED = 3; 616 617 /** 618 * Lock task mode is not active. 619 */ 620 public static final int LOCK_TASK_MODE_NONE = 0; 621 622 /** 623 * Full lock task mode is active. 624 */ 625 public static final int LOCK_TASK_MODE_LOCKED = 1; 626 627 /** 628 * App pinning mode is active. 629 */ 630 public static final int LOCK_TASK_MODE_PINNED = 2; 631 632 Point mAppTaskThumbnailSize; 633 634 /*package*/ ActivityManager(Context context, Handler handler) { 635 mContext = context; 636 } 637 638 /** 639 * Returns whether the launch was successful. 640 * @hide 641 */ 642 public static final boolean isStartResultSuccessful(int result) { 643 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 644 } 645 646 /** 647 * Returns whether the launch result was a fatal error. 648 * @hide 649 */ 650 public static final boolean isStartResultFatalError(int result) { 651 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 652 } 653 654 /** 655 * Screen compatibility mode: the application most always run in 656 * compatibility mode. 657 * @hide 658 */ 659 public static final int COMPAT_MODE_ALWAYS = -1; 660 661 /** 662 * Screen compatibility mode: the application can never run in 663 * compatibility mode. 664 * @hide 665 */ 666 public static final int COMPAT_MODE_NEVER = -2; 667 668 /** 669 * Screen compatibility mode: unknown. 670 * @hide 671 */ 672 public static final int COMPAT_MODE_UNKNOWN = -3; 673 674 /** 675 * Screen compatibility mode: the application currently has compatibility 676 * mode disabled. 677 * @hide 678 */ 679 public static final int COMPAT_MODE_DISABLED = 0; 680 681 /** 682 * Screen compatibility mode: the application currently has compatibility 683 * mode enabled. 684 * @hide 685 */ 686 public static final int COMPAT_MODE_ENABLED = 1; 687 688 /** 689 * Screen compatibility mode: request to toggle the application's 690 * compatibility mode. 691 * @hide 692 */ 693 public static final int COMPAT_MODE_TOGGLE = 2; 694 695 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 696 SystemProperties.getBoolean("debug.force_low_ram", false); 697 698 /** @hide */ 699 @TestApi 700 public static class StackId { 701 702 private StackId() { 703 } 704 705 /** Invalid stack ID. */ 706 public static final int INVALID_STACK_ID = -1; 707 708 } 709 710 /** 711 * Parameter to {@link android.app.IActivityManager#setTaskWindowingModeSplitScreenPrimary} 712 * which specifies the position of the created docked stack at the top half of the screen if 713 * in portrait mode or at the left half of the screen if in landscape mode. 714 * @hide 715 */ 716 @TestApi 717 public static final int SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT = 0; 718 719 /** 720 * Parameter to {@link android.app.IActivityManager#setTaskWindowingModeSplitScreenPrimary} 721 * which 722 * specifies the position of the created docked stack at the bottom half of the screen if 723 * in portrait mode or at the right half of the screen if in landscape mode. 724 * @hide 725 */ 726 @TestApi 727 public static final int SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 728 729 /** 730 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 731 * that the resize doesn't need to preserve the window, and can be skipped if bounds 732 * is unchanged. This mode is used by window manager in most cases. 733 * @hide 734 */ 735 public static final int RESIZE_MODE_SYSTEM = 0; 736 737 /** 738 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 739 * that the resize should preserve the window if possible. 740 * @hide 741 */ 742 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 743 744 /** 745 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 746 * that the resize should be performed even if the bounds appears unchanged. 747 * @hide 748 */ 749 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 750 751 /** 752 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 753 * manager during a screen rotation. 754 * @hide 755 */ 756 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 757 758 /** 759 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 760 * resize is due to a drag action. 761 * @hide 762 */ 763 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 764 765 /** 766 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 767 * that the resize should preserve the window if possible, and should not be skipped 768 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 769 * is ending. 770 * @hide 771 */ 772 public static final int RESIZE_MODE_USER_FORCED = 773 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 774 775 /** @hide */ 776 public int getFrontActivityScreenCompatMode() { 777 try { 778 return getService().getFrontActivityScreenCompatMode(); 779 } catch (RemoteException e) { 780 throw e.rethrowFromSystemServer(); 781 } 782 } 783 784 /** @hide */ 785 public void setFrontActivityScreenCompatMode(int mode) { 786 try { 787 getService().setFrontActivityScreenCompatMode(mode); 788 } catch (RemoteException e) { 789 throw e.rethrowFromSystemServer(); 790 } 791 } 792 793 /** @hide */ 794 public int getPackageScreenCompatMode(String packageName) { 795 try { 796 return getService().getPackageScreenCompatMode(packageName); 797 } catch (RemoteException e) { 798 throw e.rethrowFromSystemServer(); 799 } 800 } 801 802 /** @hide */ 803 public void setPackageScreenCompatMode(String packageName, int mode) { 804 try { 805 getService().setPackageScreenCompatMode(packageName, mode); 806 } catch (RemoteException e) { 807 throw e.rethrowFromSystemServer(); 808 } 809 } 810 811 /** @hide */ 812 public boolean getPackageAskScreenCompat(String packageName) { 813 try { 814 return getService().getPackageAskScreenCompat(packageName); 815 } catch (RemoteException e) { 816 throw e.rethrowFromSystemServer(); 817 } 818 } 819 820 /** @hide */ 821 public void setPackageAskScreenCompat(String packageName, boolean ask) { 822 try { 823 getService().setPackageAskScreenCompat(packageName, ask); 824 } catch (RemoteException e) { 825 throw e.rethrowFromSystemServer(); 826 } 827 } 828 829 /** 830 * Return the approximate per-application memory class of the current 831 * device. This gives you an idea of how hard a memory limit you should 832 * impose on your application to let the overall system work best. The 833 * returned value is in megabytes; the baseline Android memory class is 834 * 16 (which happens to be the Java heap limit of those devices); some 835 * devices with more memory may return 24 or even higher numbers. 836 */ 837 public int getMemoryClass() { 838 return staticGetMemoryClass(); 839 } 840 841 /** @hide */ 842 static public int staticGetMemoryClass() { 843 // Really brain dead right now -- just take this from the configured 844 // vm heap size, and assume it is in megabytes and thus ends with "m". 845 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 846 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 847 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 848 } 849 return staticGetLargeMemoryClass(); 850 } 851 852 /** 853 * Return the approximate per-application memory class of the current 854 * device when an application is running with a large heap. This is the 855 * space available for memory-intensive applications; most applications 856 * should not need this amount of memory, and should instead stay with the 857 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 858 * This may be the same size as {@link #getMemoryClass()} on memory 859 * constrained devices, or it may be significantly larger on devices with 860 * a large amount of available RAM. 861 * 862 * <p>This is the size of the application's Dalvik heap if it has 863 * specified <code>android:largeHeap="true"</code> in its manifest. 864 */ 865 public int getLargeMemoryClass() { 866 return staticGetLargeMemoryClass(); 867 } 868 869 /** @hide */ 870 static public int staticGetLargeMemoryClass() { 871 // Really brain dead right now -- just take this from the configured 872 // vm heap size, and assume it is in megabytes and thus ends with "m". 873 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 874 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 875 } 876 877 /** 878 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 879 * is ultimately up to the device configuration, but currently it generally means 880 * something with 1GB or less of RAM. This is mostly intended to be used by apps 881 * to determine whether they should turn off certain features that require more RAM. 882 */ 883 public boolean isLowRamDevice() { 884 return isLowRamDeviceStatic(); 885 } 886 887 /** @hide */ 888 public static boolean isLowRamDeviceStatic() { 889 return RoSystemProperties.CONFIG_LOW_RAM || 890 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 891 } 892 893 /** 894 * Returns true if this is a small battery device. Exactly whether a device is considered to be 895 * small battery is ultimately up to the device configuration, but currently it generally means 896 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 897 * to determine whether certain features should be altered to account for a drastically smaller 898 * battery. 899 * @hide 900 */ 901 public static boolean isSmallBatteryDevice() { 902 return RoSystemProperties.CONFIG_SMALL_BATTERY; 903 } 904 905 /** 906 * Used by persistent processes to determine if they are running on a 907 * higher-end device so should be okay using hardware drawing acceleration 908 * (which tends to consume a lot more RAM). 909 * @hide 910 */ 911 static public boolean isHighEndGfx() { 912 return !isLowRamDeviceStatic() && 913 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 914 } 915 916 /** 917 * Return the maximum number of recents entries that we will maintain and show. 918 * @hide 919 */ 920 static public int getMaxRecentTasksStatic() { 921 if (gMaxRecentTasks < 0) { 922 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 923 } 924 return gMaxRecentTasks; 925 } 926 927 /** 928 * Return the default limit on the number of recents that an app can make. 929 * @hide 930 */ 931 static public int getDefaultAppRecentsLimitStatic() { 932 return getMaxRecentTasksStatic() / 6; 933 } 934 935 /** 936 * Return the maximum limit on the number of recents that an app can make. 937 * @hide 938 */ 939 static public int getMaxAppRecentsLimitStatic() { 940 return getMaxRecentTasksStatic() / 2; 941 } 942 943 /** 944 * Returns true if the system supports at least one form of multi-window. 945 * E.g. freeform, split-screen, picture-in-picture. 946 * @hide 947 */ 948 @TestApi 949 static public boolean supportsMultiWindow(Context context) { 950 // On watches, multi-window is used to present essential system UI, and thus it must be 951 // supported regardless of device memory characteristics. 952 boolean isWatch = context.getPackageManager().hasSystemFeature( 953 PackageManager.FEATURE_WATCH); 954 return (!isLowRamDeviceStatic() || isWatch) 955 && Resources.getSystem().getBoolean( 956 com.android.internal.R.bool.config_supportsMultiWindow); 957 } 958 959 /** 960 * Returns true if the system supports split screen multi-window. 961 * @hide 962 */ 963 @TestApi 964 static public boolean supportsSplitScreenMultiWindow(Context context) { 965 return supportsMultiWindow(context) 966 && Resources.getSystem().getBoolean( 967 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 968 } 969 970 /** @removed */ 971 @Deprecated 972 public static int getMaxNumPictureInPictureActions() { 973 return 3; 974 } 975 976 /** 977 * Information you can set and retrieve about the current activity within the recent task list. 978 */ 979 public static class TaskDescription implements Parcelable { 980 /** @hide */ 981 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 982 private static final String ATTR_TASKDESCRIPTIONLABEL = 983 ATTR_TASKDESCRIPTION_PREFIX + "label"; 984 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 985 ATTR_TASKDESCRIPTION_PREFIX + "color"; 986 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 987 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 988 private static final String ATTR_TASKDESCRIPTIONICON_FILENAME = 989 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 990 private static final String ATTR_TASKDESCRIPTIONICON_RESOURCE = 991 ATTR_TASKDESCRIPTION_PREFIX + "icon_resource"; 992 993 private String mLabel; 994 private Bitmap mIcon; 995 private int mIconRes; 996 private String mIconFilename; 997 private int mColorPrimary; 998 private int mColorBackground; 999 private int mStatusBarColor; 1000 private int mNavigationBarColor; 1001 1002 /** 1003 * Creates the TaskDescription to the specified values. 1004 * 1005 * @param label A label and description of the current state of this task. 1006 * @param icon An icon that represents the current state of this task. 1007 * @param colorPrimary A color to override the theme's primary color. This color must be 1008 * opaque. 1009 * @deprecated use TaskDescription constructor with icon resource instead 1010 */ 1011 @Deprecated 1012 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1013 this(label, icon, 0, null, colorPrimary, 0, 0, 0); 1014 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1015 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1016 } 1017 } 1018 1019 /** 1020 * Creates the TaskDescription to the specified values. 1021 * 1022 * @param label A label and description of the current state of this task. 1023 * @param iconRes A drawable resource of an icon that represents the current state of this 1024 * activity. 1025 * @param colorPrimary A color to override the theme's primary color. This color must be 1026 * opaque. 1027 */ 1028 public TaskDescription(String label, @DrawableRes int iconRes, int colorPrimary) { 1029 this(label, null, iconRes, null, colorPrimary, 0, 0, 0); 1030 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1031 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1032 } 1033 } 1034 1035 /** 1036 * Creates the TaskDescription to the specified values. 1037 * 1038 * @param label A label and description of the current state of this activity. 1039 * @param icon An icon that represents the current state of this activity. 1040 * @deprecated use TaskDescription constructor with icon resource instead 1041 */ 1042 @Deprecated 1043 public TaskDescription(String label, Bitmap icon) { 1044 this(label, icon, 0, null, 0, 0, 0, 0); 1045 } 1046 1047 /** 1048 * Creates the TaskDescription to the specified values. 1049 * 1050 * @param label A label and description of the current state of this activity. 1051 * @param iconRes A drawable resource of an icon that represents the current state of this 1052 * activity. 1053 */ 1054 public TaskDescription(String label, @DrawableRes int iconRes) { 1055 this(label, null, iconRes, null, 0, 0, 0, 0); 1056 } 1057 1058 /** 1059 * Creates the TaskDescription to the specified values. 1060 * 1061 * @param label A label and description of the current state of this activity. 1062 */ 1063 public TaskDescription(String label) { 1064 this(label, null, 0, null, 0, 0, 0, 0); 1065 } 1066 1067 /** 1068 * Creates an empty TaskDescription. 1069 */ 1070 public TaskDescription() { 1071 this(null, null, 0, null, 0, 0, 0, 0); 1072 } 1073 1074 /** @hide */ 1075 public TaskDescription(String label, Bitmap bitmap, int iconRes, String iconFilename, 1076 int colorPrimary, int colorBackground, int statusBarColor, int navigationBarColor) { 1077 mLabel = label; 1078 mIcon = bitmap; 1079 mIconRes = iconRes; 1080 mIconFilename = iconFilename; 1081 mColorPrimary = colorPrimary; 1082 mColorBackground = colorBackground; 1083 mStatusBarColor = statusBarColor; 1084 mNavigationBarColor = navigationBarColor; 1085 } 1086 1087 /** 1088 * Creates a copy of another TaskDescription. 1089 */ 1090 public TaskDescription(TaskDescription td) { 1091 copyFrom(td); 1092 } 1093 1094 /** 1095 * Copies this the values from another TaskDescription. 1096 * @hide 1097 */ 1098 public void copyFrom(TaskDescription other) { 1099 mLabel = other.mLabel; 1100 mIcon = other.mIcon; 1101 mIconRes = other.mIconRes; 1102 mIconFilename = other.mIconFilename; 1103 mColorPrimary = other.mColorPrimary; 1104 mColorBackground = other.mColorBackground; 1105 mStatusBarColor = other.mStatusBarColor; 1106 mNavigationBarColor = other.mNavigationBarColor; 1107 } 1108 1109 /** 1110 * Copies this the values from another TaskDescription, but preserves the hidden fields 1111 * if they weren't set on {@code other} 1112 * @hide 1113 */ 1114 public void copyFromPreserveHiddenFields(TaskDescription other) { 1115 mLabel = other.mLabel; 1116 mIcon = other.mIcon; 1117 mIconRes = other.mIconRes; 1118 mIconFilename = other.mIconFilename; 1119 mColorPrimary = other.mColorPrimary; 1120 if (other.mColorBackground != 0) { 1121 mColorBackground = other.mColorBackground; 1122 } 1123 if (other.mStatusBarColor != 0) { 1124 mStatusBarColor = other.mStatusBarColor; 1125 } 1126 if (other.mNavigationBarColor != 0) { 1127 mNavigationBarColor = other.mNavigationBarColor; 1128 } 1129 } 1130 1131 private TaskDescription(Parcel source) { 1132 readFromParcel(source); 1133 } 1134 1135 /** 1136 * Sets the label for this task description. 1137 * @hide 1138 */ 1139 public void setLabel(String label) { 1140 mLabel = label; 1141 } 1142 1143 /** 1144 * Sets the primary color for this task description. 1145 * @hide 1146 */ 1147 public void setPrimaryColor(int primaryColor) { 1148 // Ensure that the given color is valid 1149 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1150 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1151 } 1152 mColorPrimary = primaryColor; 1153 } 1154 1155 /** 1156 * Sets the background color for this task description. 1157 * @hide 1158 */ 1159 public void setBackgroundColor(int backgroundColor) { 1160 // Ensure that the given color is valid 1161 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1162 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1163 } 1164 mColorBackground = backgroundColor; 1165 } 1166 1167 /** 1168 * @hide 1169 */ 1170 public void setStatusBarColor(int statusBarColor) { 1171 mStatusBarColor = statusBarColor; 1172 } 1173 1174 /** 1175 * @hide 1176 */ 1177 public void setNavigationBarColor(int navigationBarColor) { 1178 mNavigationBarColor = navigationBarColor; 1179 } 1180 1181 /** 1182 * Sets the icon for this task description. 1183 * @hide 1184 */ 1185 public void setIcon(Bitmap icon) { 1186 mIcon = icon; 1187 } 1188 1189 /** 1190 * Sets the icon resource for this task description. 1191 * @hide 1192 */ 1193 public void setIcon(int iconRes) { 1194 mIconRes = iconRes; 1195 } 1196 1197 /** 1198 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1199 * bitmap. 1200 * @hide 1201 */ 1202 public void setIconFilename(String iconFilename) { 1203 mIconFilename = iconFilename; 1204 mIcon = null; 1205 } 1206 1207 /** 1208 * @return The label and description of the current state of this task. 1209 */ 1210 public String getLabel() { 1211 return mLabel; 1212 } 1213 1214 /** 1215 * @return The icon that represents the current state of this task. 1216 */ 1217 public Bitmap getIcon() { 1218 if (mIcon != null) { 1219 return mIcon; 1220 } 1221 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1222 } 1223 1224 /** @hide */ 1225 @TestApi 1226 public int getIconResource() { 1227 return mIconRes; 1228 } 1229 1230 /** @hide */ 1231 @TestApi 1232 public String getIconFilename() { 1233 return mIconFilename; 1234 } 1235 1236 /** @hide */ 1237 public Bitmap getInMemoryIcon() { 1238 return mIcon; 1239 } 1240 1241 /** @hide */ 1242 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1243 if (iconFilename != null) { 1244 try { 1245 return getService().getTaskDescriptionIcon(iconFilename, 1246 userId); 1247 } catch (RemoteException e) { 1248 throw e.rethrowFromSystemServer(); 1249 } 1250 } 1251 return null; 1252 } 1253 1254 /** 1255 * @return The color override on the theme's primary color. 1256 */ 1257 public int getPrimaryColor() { 1258 return mColorPrimary; 1259 } 1260 1261 /** 1262 * @return The background color. 1263 * @hide 1264 */ 1265 public int getBackgroundColor() { 1266 return mColorBackground; 1267 } 1268 1269 /** 1270 * @hide 1271 */ 1272 public int getStatusBarColor() { 1273 return mStatusBarColor; 1274 } 1275 1276 /** 1277 * @hide 1278 */ 1279 public int getNavigationBarColor() { 1280 return mNavigationBarColor; 1281 } 1282 1283 /** @hide */ 1284 public void saveToXml(XmlSerializer out) throws IOException { 1285 if (mLabel != null) { 1286 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1287 } 1288 if (mColorPrimary != 0) { 1289 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1290 Integer.toHexString(mColorPrimary)); 1291 } 1292 if (mColorBackground != 0) { 1293 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1294 Integer.toHexString(mColorBackground)); 1295 } 1296 if (mIconFilename != null) { 1297 out.attribute(null, ATTR_TASKDESCRIPTIONICON_FILENAME, mIconFilename); 1298 } 1299 if (mIconRes != 0) { 1300 out.attribute(null, ATTR_TASKDESCRIPTIONICON_RESOURCE, Integer.toString(mIconRes)); 1301 } 1302 } 1303 1304 /** @hide */ 1305 public void restoreFromXml(String attrName, String attrValue) { 1306 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1307 setLabel(attrValue); 1308 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1309 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1310 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1311 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1312 } else if (ATTR_TASKDESCRIPTIONICON_FILENAME.equals(attrName)) { 1313 setIconFilename(attrValue); 1314 } else if (ATTR_TASKDESCRIPTIONICON_RESOURCE.equals(attrName)) { 1315 setIcon(Integer.parseInt(attrValue, 10)); 1316 } 1317 } 1318 1319 @Override 1320 public int describeContents() { 1321 return 0; 1322 } 1323 1324 @Override 1325 public void writeToParcel(Parcel dest, int flags) { 1326 if (mLabel == null) { 1327 dest.writeInt(0); 1328 } else { 1329 dest.writeInt(1); 1330 dest.writeString(mLabel); 1331 } 1332 if (mIcon == null) { 1333 dest.writeInt(0); 1334 } else { 1335 dest.writeInt(1); 1336 mIcon.writeToParcel(dest, 0); 1337 } 1338 dest.writeInt(mIconRes); 1339 dest.writeInt(mColorPrimary); 1340 dest.writeInt(mColorBackground); 1341 dest.writeInt(mStatusBarColor); 1342 dest.writeInt(mNavigationBarColor); 1343 if (mIconFilename == null) { 1344 dest.writeInt(0); 1345 } else { 1346 dest.writeInt(1); 1347 dest.writeString(mIconFilename); 1348 } 1349 } 1350 1351 public void readFromParcel(Parcel source) { 1352 mLabel = source.readInt() > 0 ? source.readString() : null; 1353 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1354 mIconRes = source.readInt(); 1355 mColorPrimary = source.readInt(); 1356 mColorBackground = source.readInt(); 1357 mStatusBarColor = source.readInt(); 1358 mNavigationBarColor = source.readInt(); 1359 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1360 } 1361 1362 public static final Creator<TaskDescription> CREATOR 1363 = new Creator<TaskDescription>() { 1364 public TaskDescription createFromParcel(Parcel source) { 1365 return new TaskDescription(source); 1366 } 1367 public TaskDescription[] newArray(int size) { 1368 return new TaskDescription[size]; 1369 } 1370 }; 1371 1372 @Override 1373 public String toString() { 1374 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1375 " IconRes: " + mIconRes + " IconFilename: " + mIconFilename + 1376 " colorPrimary: " + mColorPrimary + " colorBackground: " + mColorBackground + 1377 " statusBarColor: " + mColorBackground + 1378 " navigationBarColor: " + mNavigationBarColor; 1379 } 1380 } 1381 1382 /** 1383 * Information you can retrieve about tasks that the user has most recently 1384 * started or visited. 1385 */ 1386 public static class RecentTaskInfo implements Parcelable { 1387 /** 1388 * If this task is currently running, this is the identifier for it. 1389 * If it is not running, this will be -1. 1390 */ 1391 public int id; 1392 1393 /** 1394 * The true identifier of this task, valid even if it is not running. 1395 */ 1396 public int persistentId; 1397 1398 /** 1399 * The original Intent used to launch the task. You can use this 1400 * Intent to re-launch the task (if it is no longer running) or bring 1401 * the current task to the front. 1402 */ 1403 public Intent baseIntent; 1404 1405 /** 1406 * If this task was started from an alias, this is the actual 1407 * activity component that was initially started; the component of 1408 * the baseIntent in this case is the name of the actual activity 1409 * implementation that the alias referred to. Otherwise, this is null. 1410 */ 1411 public ComponentName origActivity; 1412 1413 /** 1414 * The actual activity component that started the task. 1415 * @hide 1416 */ 1417 @Nullable 1418 public ComponentName realActivity; 1419 1420 /** 1421 * Description of the task's last state. 1422 */ 1423 public CharSequence description; 1424 1425 /** 1426 * The id of the ActivityStack this Task was on most recently. 1427 * @hide 1428 */ 1429 public int stackId; 1430 1431 /** 1432 * The id of the user the task was running as. 1433 * @hide 1434 */ 1435 public int userId; 1436 1437 /** 1438 * The first time this task was active. 1439 * @hide 1440 */ 1441 public long firstActiveTime; 1442 1443 /** 1444 * The last time this task was active. 1445 * @hide 1446 */ 1447 public long lastActiveTime; 1448 1449 /** 1450 * The recent activity values for the highest activity in the stack to have set the values. 1451 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1452 */ 1453 public TaskDescription taskDescription; 1454 1455 /** 1456 * Task affiliation for grouping with other tasks. 1457 */ 1458 public int affiliatedTaskId; 1459 1460 /** 1461 * Task affiliation color of the source task with the affiliated task id. 1462 * 1463 * @hide 1464 */ 1465 public int affiliatedTaskColor; 1466 1467 /** 1468 * The component launched as the first activity in the task. 1469 * This can be considered the "application" of this task. 1470 */ 1471 public ComponentName baseActivity; 1472 1473 /** 1474 * The activity component at the top of the history stack of the task. 1475 * This is what the user is currently doing. 1476 */ 1477 public ComponentName topActivity; 1478 1479 /** 1480 * Number of activities in this task. 1481 */ 1482 public int numActivities; 1483 1484 /** 1485 * The bounds of the task. 1486 * @hide 1487 */ 1488 public Rect bounds; 1489 1490 /** 1491 * True if the task can go in the docked stack. 1492 * @hide 1493 */ 1494 public boolean supportsSplitScreenMultiWindow; 1495 1496 /** 1497 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1498 * @hide 1499 */ 1500 public int resizeMode; 1501 1502 /** 1503 * The current configuration this task is in. 1504 * @hide 1505 */ 1506 final public Configuration configuration = new Configuration(); 1507 1508 public RecentTaskInfo() { 1509 } 1510 1511 @Override 1512 public int describeContents() { 1513 return 0; 1514 } 1515 1516 @Override 1517 public void writeToParcel(Parcel dest, int flags) { 1518 dest.writeInt(id); 1519 dest.writeInt(persistentId); 1520 if (baseIntent != null) { 1521 dest.writeInt(1); 1522 baseIntent.writeToParcel(dest, 0); 1523 } else { 1524 dest.writeInt(0); 1525 } 1526 ComponentName.writeToParcel(origActivity, dest); 1527 ComponentName.writeToParcel(realActivity, dest); 1528 TextUtils.writeToParcel(description, dest, 1529 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1530 if (taskDescription != null) { 1531 dest.writeInt(1); 1532 taskDescription.writeToParcel(dest, 0); 1533 } else { 1534 dest.writeInt(0); 1535 } 1536 dest.writeInt(stackId); 1537 dest.writeInt(userId); 1538 dest.writeLong(lastActiveTime); 1539 dest.writeInt(affiliatedTaskId); 1540 dest.writeInt(affiliatedTaskColor); 1541 ComponentName.writeToParcel(baseActivity, dest); 1542 ComponentName.writeToParcel(topActivity, dest); 1543 dest.writeInt(numActivities); 1544 if (bounds != null) { 1545 dest.writeInt(1); 1546 bounds.writeToParcel(dest, 0); 1547 } else { 1548 dest.writeInt(0); 1549 } 1550 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1551 dest.writeInt(resizeMode); 1552 configuration.writeToParcel(dest, flags); 1553 } 1554 1555 public void readFromParcel(Parcel source) { 1556 id = source.readInt(); 1557 persistentId = source.readInt(); 1558 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1559 origActivity = ComponentName.readFromParcel(source); 1560 realActivity = ComponentName.readFromParcel(source); 1561 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1562 taskDescription = source.readInt() > 0 ? 1563 TaskDescription.CREATOR.createFromParcel(source) : null; 1564 stackId = source.readInt(); 1565 userId = source.readInt(); 1566 lastActiveTime = source.readLong(); 1567 affiliatedTaskId = source.readInt(); 1568 affiliatedTaskColor = source.readInt(); 1569 baseActivity = ComponentName.readFromParcel(source); 1570 topActivity = ComponentName.readFromParcel(source); 1571 numActivities = source.readInt(); 1572 bounds = source.readInt() > 0 ? 1573 Rect.CREATOR.createFromParcel(source) : null; 1574 supportsSplitScreenMultiWindow = source.readInt() == 1; 1575 resizeMode = source.readInt(); 1576 configuration.readFromParcel(source); 1577 } 1578 1579 public static final Creator<RecentTaskInfo> CREATOR 1580 = new Creator<RecentTaskInfo>() { 1581 public RecentTaskInfo createFromParcel(Parcel source) { 1582 return new RecentTaskInfo(source); 1583 } 1584 public RecentTaskInfo[] newArray(int size) { 1585 return new RecentTaskInfo[size]; 1586 } 1587 }; 1588 1589 private RecentTaskInfo(Parcel source) { 1590 readFromParcel(source); 1591 } 1592 } 1593 1594 /** 1595 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1596 * that have set their 1597 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1598 */ 1599 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1600 1601 /** 1602 * Provides a list that does not contain any 1603 * recent tasks that currently are not available to the user. 1604 */ 1605 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1606 1607 /** 1608 * <p></p>Return a list of the tasks that the user has recently launched, with 1609 * the most recent being first and older ones after in order. 1610 * 1611 * <p><b>Note: this method is only intended for debugging and presenting 1612 * task management user interfaces</b>. This should never be used for 1613 * core logic in an application, such as deciding between different 1614 * behaviors based on the information found here. Such uses are 1615 * <em>not</em> supported, and will likely break in the future. For 1616 * example, if multiple applications can be actively running at the 1617 * same time, assumptions made about the meaning of the data here for 1618 * purposes of control flow will be incorrect.</p> 1619 * 1620 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1621 * no longer available to third party applications: the introduction of 1622 * document-centric recents means 1623 * it can leak personal information to the caller. For backwards compatibility, 1624 * it will still return a small subset of its data: at least the caller's 1625 * own tasks (though see {@link #getAppTasks()} for the correct supported 1626 * way to retrieve that information), and possibly some other tasks 1627 * such as home that are known to not be sensitive. 1628 * 1629 * @param maxNum The maximum number of entries to return in the list. The 1630 * actual number returned may be smaller, depending on how many tasks the 1631 * user has started and the maximum number the system can remember. 1632 * @param flags Information about what to return. May be any combination 1633 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1634 * 1635 * @return Returns a list of RecentTaskInfo records describing each of 1636 * the recent tasks. 1637 */ 1638 @Deprecated 1639 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1640 throws SecurityException { 1641 try { 1642 if (maxNum < 0) { 1643 throw new IllegalArgumentException("The requested number of tasks should be >= 0"); 1644 } 1645 return getService().getRecentTasks(maxNum, flags, UserHandle.myUserId()).getList(); 1646 } catch (RemoteException e) { 1647 throw e.rethrowFromSystemServer(); 1648 } 1649 } 1650 1651 /** 1652 * Information you can retrieve about a particular task that is currently 1653 * "running" in the system. Note that a running task does not mean the 1654 * given task actually has a process it is actively running in; it simply 1655 * means that the user has gone to it and never closed it, but currently 1656 * the system may have killed its process and is only holding on to its 1657 * last state in order to restart it when the user returns. 1658 */ 1659 public static class RunningTaskInfo implements Parcelable { 1660 /** 1661 * A unique identifier for this task. 1662 */ 1663 public int id; 1664 1665 /** 1666 * The stack that currently contains this task. 1667 * @hide 1668 */ 1669 public int stackId; 1670 1671 /** 1672 * The component launched as the first activity in the task. This can 1673 * be considered the "application" of this task. 1674 */ 1675 public ComponentName baseActivity; 1676 1677 /** 1678 * The activity component at the top of the history stack of the task. 1679 * This is what the user is currently doing. 1680 */ 1681 public ComponentName topActivity; 1682 1683 /** 1684 * Thumbnail representation of the task's current state. Currently 1685 * always null. 1686 */ 1687 public Bitmap thumbnail; 1688 1689 /** 1690 * Description of the task's current state. 1691 */ 1692 public CharSequence description; 1693 1694 /** 1695 * Number of activities in this task. 1696 */ 1697 public int numActivities; 1698 1699 /** 1700 * Number of activities that are currently running (not stopped 1701 * and persisted) in this task. 1702 */ 1703 public int numRunning; 1704 1705 /** 1706 * Last time task was run. For sorting. 1707 * @hide 1708 */ 1709 public long lastActiveTime; 1710 1711 /** 1712 * True if the task can go in the docked stack. 1713 * @hide 1714 */ 1715 public boolean supportsSplitScreenMultiWindow; 1716 1717 /** 1718 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1719 * @hide 1720 */ 1721 public int resizeMode; 1722 1723 /** 1724 * The full configuration the task is currently running in. 1725 * @hide 1726 */ 1727 final public Configuration configuration = new Configuration(); 1728 1729 public RunningTaskInfo() { 1730 } 1731 1732 public int describeContents() { 1733 return 0; 1734 } 1735 1736 public void writeToParcel(Parcel dest, int flags) { 1737 dest.writeInt(id); 1738 dest.writeInt(stackId); 1739 ComponentName.writeToParcel(baseActivity, dest); 1740 ComponentName.writeToParcel(topActivity, dest); 1741 if (thumbnail != null) { 1742 dest.writeInt(1); 1743 thumbnail.writeToParcel(dest, 0); 1744 } else { 1745 dest.writeInt(0); 1746 } 1747 TextUtils.writeToParcel(description, dest, 1748 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1749 dest.writeInt(numActivities); 1750 dest.writeInt(numRunning); 1751 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1752 dest.writeInt(resizeMode); 1753 configuration.writeToParcel(dest, flags); 1754 } 1755 1756 public void readFromParcel(Parcel source) { 1757 id = source.readInt(); 1758 stackId = source.readInt(); 1759 baseActivity = ComponentName.readFromParcel(source); 1760 topActivity = ComponentName.readFromParcel(source); 1761 if (source.readInt() != 0) { 1762 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1763 } else { 1764 thumbnail = null; 1765 } 1766 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1767 numActivities = source.readInt(); 1768 numRunning = source.readInt(); 1769 supportsSplitScreenMultiWindow = source.readInt() != 0; 1770 resizeMode = source.readInt(); 1771 configuration.readFromParcel(source); 1772 } 1773 1774 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1775 public RunningTaskInfo createFromParcel(Parcel source) { 1776 return new RunningTaskInfo(source); 1777 } 1778 public RunningTaskInfo[] newArray(int size) { 1779 return new RunningTaskInfo[size]; 1780 } 1781 }; 1782 1783 private RunningTaskInfo(Parcel source) { 1784 readFromParcel(source); 1785 } 1786 } 1787 1788 /** 1789 * Get the list of tasks associated with the calling application. 1790 * 1791 * @return The list of tasks associated with the application making this call. 1792 * @throws SecurityException 1793 */ 1794 public List<ActivityManager.AppTask> getAppTasks() { 1795 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1796 List<IBinder> appTasks; 1797 try { 1798 appTasks = getService().getAppTasks(mContext.getPackageName()); 1799 } catch (RemoteException e) { 1800 throw e.rethrowFromSystemServer(); 1801 } 1802 int numAppTasks = appTasks.size(); 1803 for (int i = 0; i < numAppTasks; i++) { 1804 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1805 } 1806 return tasks; 1807 } 1808 1809 /** 1810 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1811 * with {@link #addAppTask}. 1812 */ 1813 public Size getAppTaskThumbnailSize() { 1814 synchronized (this) { 1815 ensureAppTaskThumbnailSizeLocked(); 1816 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1817 } 1818 } 1819 1820 private void ensureAppTaskThumbnailSizeLocked() { 1821 if (mAppTaskThumbnailSize == null) { 1822 try { 1823 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1824 } catch (RemoteException e) { 1825 throw e.rethrowFromSystemServer(); 1826 } 1827 } 1828 } 1829 1830 /** 1831 * Add a new {@link AppTask} for the calling application. This will create a new 1832 * recents entry that is added to the <b>end</b> of all existing recents. 1833 * 1834 * @param activity The activity that is adding the entry. This is used to help determine 1835 * the context that the new recents entry will be in. 1836 * @param intent The Intent that describes the recents entry. This is the same Intent that 1837 * you would have used to launch the activity for it. In generally you will want to set 1838 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1839 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1840 * entry will exist without an activity, so it doesn't make sense to not retain it when 1841 * its activity disappears. The given Intent here also must have an explicit ComponentName 1842 * set on it. 1843 * @param description Optional additional description information. 1844 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1845 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1846 * recreated in your process, probably in a way you don't like, before the recents entry 1847 * is added. 1848 * 1849 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1850 * most likely cause of failure is that there is no more room for more tasks for your app. 1851 */ 1852 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1853 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1854 Point size; 1855 synchronized (this) { 1856 ensureAppTaskThumbnailSizeLocked(); 1857 size = mAppTaskThumbnailSize; 1858 } 1859 final int tw = thumbnail.getWidth(); 1860 final int th = thumbnail.getHeight(); 1861 if (tw != size.x || th != size.y) { 1862 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1863 1864 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1865 float scale; 1866 float dx = 0, dy = 0; 1867 if (tw * size.x > size.y * th) { 1868 scale = (float) size.x / (float) th; 1869 dx = (size.y - tw * scale) * 0.5f; 1870 } else { 1871 scale = (float) size.y / (float) tw; 1872 dy = (size.x - th * scale) * 0.5f; 1873 } 1874 Matrix matrix = new Matrix(); 1875 matrix.setScale(scale, scale); 1876 matrix.postTranslate((int) (dx + 0.5f), 0); 1877 1878 Canvas canvas = new Canvas(bm); 1879 canvas.drawBitmap(thumbnail, matrix, null); 1880 canvas.setBitmap(null); 1881 1882 thumbnail = bm; 1883 } 1884 if (description == null) { 1885 description = new TaskDescription(); 1886 } 1887 try { 1888 return getService().addAppTask(activity.getActivityToken(), 1889 intent, description, thumbnail); 1890 } catch (RemoteException e) { 1891 throw e.rethrowFromSystemServer(); 1892 } 1893 } 1894 1895 /** 1896 * Return a list of the tasks that are currently running, with 1897 * the most recent being first and older ones after in order. Note that 1898 * "running" does not mean any of the task's code is currently loaded or 1899 * activity -- the task may have been frozen by the system, so that it 1900 * can be restarted in its previous state when next brought to the 1901 * foreground. 1902 * 1903 * <p><b>Note: this method is only intended for debugging and presenting 1904 * task management user interfaces</b>. This should never be used for 1905 * core logic in an application, such as deciding between different 1906 * behaviors based on the information found here. Such uses are 1907 * <em>not</em> supported, and will likely break in the future. For 1908 * example, if multiple applications can be actively running at the 1909 * same time, assumptions made about the meaning of the data here for 1910 * purposes of control flow will be incorrect.</p> 1911 * 1912 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1913 * is no longer available to third party 1914 * applications: the introduction of document-centric recents means 1915 * it can leak person information to the caller. For backwards compatibility, 1916 * it will still return a small subset of its data: at least the caller's 1917 * own tasks, and possibly some other tasks 1918 * such as home that are known to not be sensitive. 1919 * 1920 * @param maxNum The maximum number of entries to return in the list. The 1921 * actual number returned may be smaller, depending on how many tasks the 1922 * user has started. 1923 * 1924 * @return Returns a list of RunningTaskInfo records describing each of 1925 * the running tasks. 1926 */ 1927 @Deprecated 1928 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1929 throws SecurityException { 1930 try { 1931 return getService().getTasks(maxNum); 1932 } catch (RemoteException e) { 1933 throw e.rethrowFromSystemServer(); 1934 } 1935 } 1936 1937 /** 1938 * Sets the windowing mode for a specific task. Only works on tasks of type 1939 * {@link WindowConfiguration#ACTIVITY_TYPE_STANDARD} 1940 * @param taskId The id of the task to set the windowing mode for. 1941 * @param windowingMode The windowing mode to set for the task. 1942 * @param toTop If the task should be moved to the top once the windowing mode changes. 1943 * @hide 1944 */ 1945 @TestApi 1946 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 1947 public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) 1948 throws SecurityException { 1949 try { 1950 getService().setTaskWindowingMode(taskId, windowingMode, toTop); 1951 } catch (RemoteException e) { 1952 throw e.rethrowFromSystemServer(); 1953 } 1954 } 1955 1956 /** 1957 * Moves the input task to the primary-split-screen stack. 1958 * @param taskId Id of task to move. 1959 * @param createMode The mode the primary split screen stack should be created in if it doesn't 1960 * exist already. See 1961 * {@link android.app.ActivityManager#SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT} 1962 * and 1963 * {@link android.app.ActivityManager 1964 * #SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT} 1965 * @param toTop If the task and stack should be moved to the top. 1966 * @param animate Whether we should play an animation for the moving the task 1967 * @param initialBounds If the primary stack gets created, it will use these bounds for the 1968 * docked stack. Pass {@code null} to use default bounds. 1969 * @param showRecents If the recents activity should be shown on the other side of the task 1970 * going into split-screen mode. 1971 * @hide 1972 */ 1973 @TestApi 1974 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 1975 public void setTaskWindowingModeSplitScreenPrimary(int taskId, int createMode, boolean toTop, 1976 boolean animate, Rect initialBounds, boolean showRecents) throws SecurityException { 1977 try { 1978 getService().setTaskWindowingModeSplitScreenPrimary(taskId, createMode, toTop, animate, 1979 initialBounds, showRecents); 1980 } catch (RemoteException e) { 1981 throw e.rethrowFromSystemServer(); 1982 } 1983 } 1984 1985 /** 1986 * Resizes the input stack id to the given bounds. 1987 * @param stackId Id of the stack to resize. 1988 * @param bounds Bounds to resize the stack to or {@code null} for fullscreen. 1989 * @hide 1990 */ 1991 @TestApi 1992 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 1993 public void resizeStack(int stackId, Rect bounds) throws SecurityException { 1994 try { 1995 getService().resizeStack(stackId, bounds, false /* allowResizeInDockedMode */, 1996 false /* preserveWindows */, false /* animate */, -1 /* animationDuration */); 1997 } catch (RemoteException e) { 1998 throw e.rethrowFromSystemServer(); 1999 } 2000 } 2001 2002 /** 2003 * Removes stacks in the windowing modes from the system if they are of activity type 2004 * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED 2005 * 2006 * @hide 2007 */ 2008 @TestApi 2009 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2010 public void removeStacksInWindowingModes(int[] windowingModes) throws SecurityException { 2011 try { 2012 getService().removeStacksInWindowingModes(windowingModes); 2013 } catch (RemoteException e) { 2014 throw e.rethrowFromSystemServer(); 2015 } 2016 } 2017 2018 /** 2019 * Removes stack of the activity types from the system. 2020 * 2021 * @hide 2022 */ 2023 @TestApi 2024 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2025 public void removeStacksWithActivityTypes(int[] activityTypes) throws SecurityException { 2026 try { 2027 getService().removeStacksWithActivityTypes(activityTypes); 2028 } catch (RemoteException e) { 2029 throw e.rethrowFromSystemServer(); 2030 } 2031 } 2032 2033 /** 2034 * Represents a task snapshot. 2035 * @hide 2036 */ 2037 public static class TaskSnapshot implements Parcelable { 2038 2039 private final GraphicBuffer mSnapshot; 2040 private final int mOrientation; 2041 private final Rect mContentInsets; 2042 private final boolean mReducedResolution; 2043 private final float mScale; 2044 2045 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2046 boolean reducedResolution, float scale) { 2047 mSnapshot = snapshot; 2048 mOrientation = orientation; 2049 mContentInsets = new Rect(contentInsets); 2050 mReducedResolution = reducedResolution; 2051 mScale = scale; 2052 } 2053 2054 private TaskSnapshot(Parcel source) { 2055 mSnapshot = source.readParcelable(null /* classLoader */); 2056 mOrientation = source.readInt(); 2057 mContentInsets = source.readParcelable(null /* classLoader */); 2058 mReducedResolution = source.readBoolean(); 2059 mScale = source.readFloat(); 2060 } 2061 2062 /** 2063 * @return The graphic buffer representing the screenshot. 2064 */ 2065 public GraphicBuffer getSnapshot() { 2066 return mSnapshot; 2067 } 2068 2069 /** 2070 * @return The screen orientation the screenshot was taken in. 2071 */ 2072 public int getOrientation() { 2073 return mOrientation; 2074 } 2075 2076 /** 2077 * @return The system/content insets on the snapshot. These can be clipped off in order to 2078 * remove any areas behind system bars in the snapshot. 2079 */ 2080 public Rect getContentInsets() { 2081 return mContentInsets; 2082 } 2083 2084 /** 2085 * @return Whether this snapshot is a down-sampled version of the full resolution. 2086 */ 2087 public boolean isReducedResolution() { 2088 return mReducedResolution; 2089 } 2090 2091 /** 2092 * @return The scale this snapshot was taken in. 2093 */ 2094 public float getScale() { 2095 return mScale; 2096 } 2097 2098 @Override 2099 public int describeContents() { 2100 return 0; 2101 } 2102 2103 @Override 2104 public void writeToParcel(Parcel dest, int flags) { 2105 dest.writeParcelable(mSnapshot, 0); 2106 dest.writeInt(mOrientation); 2107 dest.writeParcelable(mContentInsets, 0); 2108 dest.writeBoolean(mReducedResolution); 2109 dest.writeFloat(mScale); 2110 } 2111 2112 @Override 2113 public String toString() { 2114 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2115 + " mContentInsets=" + mContentInsets.toShortString() 2116 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2117 } 2118 2119 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2120 public TaskSnapshot createFromParcel(Parcel source) { 2121 return new TaskSnapshot(source); 2122 } 2123 public TaskSnapshot[] newArray(int size) { 2124 return new TaskSnapshot[size]; 2125 } 2126 }; 2127 } 2128 2129 /** @hide */ 2130 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2131 MOVE_TASK_WITH_HOME, 2132 MOVE_TASK_NO_USER_ACTION, 2133 }) 2134 @Retention(RetentionPolicy.SOURCE) 2135 public @interface MoveTaskFlags {} 2136 2137 /** 2138 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2139 * activity along with the task, so it is positioned immediately behind 2140 * the task. 2141 */ 2142 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2143 2144 /** 2145 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2146 * user-instigated action, so the current activity will not receive a 2147 * hint that the user is leaving. 2148 */ 2149 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2150 2151 /** 2152 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2153 * with a null options argument. 2154 * 2155 * @param taskId The identifier of the task to be moved, as found in 2156 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2157 * @param flags Additional operational flags. 2158 */ 2159 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2160 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2161 moveTaskToFront(taskId, flags, null); 2162 } 2163 2164 /** 2165 * Ask that the task associated with a given task ID be moved to the 2166 * front of the stack, so it is now visible to the user. 2167 * 2168 * @param taskId The identifier of the task to be moved, as found in 2169 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2170 * @param flags Additional operational flags. 2171 * @param options Additional options for the operation, either null or 2172 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2173 * Context.startActivity(Intent, Bundle)}. 2174 */ 2175 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2176 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2177 try { 2178 getService().moveTaskToFront(taskId, flags, options); 2179 } catch (RemoteException e) { 2180 throw e.rethrowFromSystemServer(); 2181 } 2182 } 2183 2184 /** 2185 * Information you can retrieve about a particular Service that is 2186 * currently running in the system. 2187 */ 2188 public static class RunningServiceInfo implements Parcelable { 2189 /** 2190 * The service component. 2191 */ 2192 public ComponentName service; 2193 2194 /** 2195 * If non-zero, this is the process the service is running in. 2196 */ 2197 public int pid; 2198 2199 /** 2200 * The UID that owns this service. 2201 */ 2202 public int uid; 2203 2204 /** 2205 * The name of the process this service runs in. 2206 */ 2207 public String process; 2208 2209 /** 2210 * Set to true if the service has asked to run as a foreground process. 2211 */ 2212 public boolean foreground; 2213 2214 /** 2215 * The time when the service was first made active, either by someone 2216 * starting or binding to it. This 2217 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2218 */ 2219 public long activeSince; 2220 2221 /** 2222 * Set to true if this service has been explicitly started. 2223 */ 2224 public boolean started; 2225 2226 /** 2227 * Number of clients connected to the service. 2228 */ 2229 public int clientCount; 2230 2231 /** 2232 * Number of times the service's process has crashed while the service 2233 * is running. 2234 */ 2235 public int crashCount; 2236 2237 /** 2238 * The time when there was last activity in the service (either 2239 * explicit requests to start it or clients binding to it). This 2240 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2241 */ 2242 public long lastActivityTime; 2243 2244 /** 2245 * If non-zero, this service is not currently running, but scheduled to 2246 * restart at the given time. 2247 */ 2248 public long restarting; 2249 2250 /** 2251 * Bit for {@link #flags}: set if this service has been 2252 * explicitly started. 2253 */ 2254 public static final int FLAG_STARTED = 1<<0; 2255 2256 /** 2257 * Bit for {@link #flags}: set if the service has asked to 2258 * run as a foreground process. 2259 */ 2260 public static final int FLAG_FOREGROUND = 1<<1; 2261 2262 /** 2263 * Bit for {@link #flags}: set if the service is running in a 2264 * core system process. 2265 */ 2266 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2267 2268 /** 2269 * Bit for {@link #flags}: set if the service is running in a 2270 * persistent process. 2271 */ 2272 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2273 2274 /** 2275 * Running flags. 2276 */ 2277 public int flags; 2278 2279 /** 2280 * For special services that are bound to by system code, this is 2281 * the package that holds the binding. 2282 */ 2283 public String clientPackage; 2284 2285 /** 2286 * For special services that are bound to by system code, this is 2287 * a string resource providing a user-visible label for who the 2288 * client is. 2289 */ 2290 public int clientLabel; 2291 2292 public RunningServiceInfo() { 2293 } 2294 2295 public int describeContents() { 2296 return 0; 2297 } 2298 2299 public void writeToParcel(Parcel dest, int flags) { 2300 ComponentName.writeToParcel(service, dest); 2301 dest.writeInt(pid); 2302 dest.writeInt(uid); 2303 dest.writeString(process); 2304 dest.writeInt(foreground ? 1 : 0); 2305 dest.writeLong(activeSince); 2306 dest.writeInt(started ? 1 : 0); 2307 dest.writeInt(clientCount); 2308 dest.writeInt(crashCount); 2309 dest.writeLong(lastActivityTime); 2310 dest.writeLong(restarting); 2311 dest.writeInt(this.flags); 2312 dest.writeString(clientPackage); 2313 dest.writeInt(clientLabel); 2314 } 2315 2316 public void readFromParcel(Parcel source) { 2317 service = ComponentName.readFromParcel(source); 2318 pid = source.readInt(); 2319 uid = source.readInt(); 2320 process = source.readString(); 2321 foreground = source.readInt() != 0; 2322 activeSince = source.readLong(); 2323 started = source.readInt() != 0; 2324 clientCount = source.readInt(); 2325 crashCount = source.readInt(); 2326 lastActivityTime = source.readLong(); 2327 restarting = source.readLong(); 2328 flags = source.readInt(); 2329 clientPackage = source.readString(); 2330 clientLabel = source.readInt(); 2331 } 2332 2333 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2334 public RunningServiceInfo createFromParcel(Parcel source) { 2335 return new RunningServiceInfo(source); 2336 } 2337 public RunningServiceInfo[] newArray(int size) { 2338 return new RunningServiceInfo[size]; 2339 } 2340 }; 2341 2342 private RunningServiceInfo(Parcel source) { 2343 readFromParcel(source); 2344 } 2345 } 2346 2347 /** 2348 * Return a list of the services that are currently running. 2349 * 2350 * <p><b>Note: this method is only intended for debugging or implementing 2351 * service management type user interfaces.</b></p> 2352 * 2353 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2354 * is no longer available to third party applications. For backwards compatibility, 2355 * it will still return the caller's own services. 2356 * 2357 * @param maxNum The maximum number of entries to return in the list. The 2358 * actual number returned may be smaller, depending on how many services 2359 * are running. 2360 * 2361 * @return Returns a list of RunningServiceInfo records describing each of 2362 * the running tasks. 2363 */ 2364 @Deprecated 2365 public List<RunningServiceInfo> getRunningServices(int maxNum) 2366 throws SecurityException { 2367 try { 2368 return getService() 2369 .getServices(maxNum, 0); 2370 } catch (RemoteException e) { 2371 throw e.rethrowFromSystemServer(); 2372 } 2373 } 2374 2375 /** 2376 * Returns a PendingIntent you can start to show a control panel for the 2377 * given running service. If the service does not have a control panel, 2378 * null is returned. 2379 */ 2380 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2381 throws SecurityException { 2382 try { 2383 return getService() 2384 .getRunningServiceControlPanel(service); 2385 } catch (RemoteException e) { 2386 throw e.rethrowFromSystemServer(); 2387 } 2388 } 2389 2390 /** 2391 * Information you can retrieve about the available memory through 2392 * {@link ActivityManager#getMemoryInfo}. 2393 */ 2394 public static class MemoryInfo implements Parcelable { 2395 /** 2396 * The available memory on the system. This number should not 2397 * be considered absolute: due to the nature of the kernel, a significant 2398 * portion of this memory is actually in use and needed for the overall 2399 * system to run well. 2400 */ 2401 public long availMem; 2402 2403 /** 2404 * The total memory accessible by the kernel. This is basically the 2405 * RAM size of the device, not including below-kernel fixed allocations 2406 * like DMA buffers, RAM for the baseband CPU, etc. 2407 */ 2408 public long totalMem; 2409 2410 /** 2411 * The threshold of {@link #availMem} at which we consider memory to be 2412 * low and start killing background services and other non-extraneous 2413 * processes. 2414 */ 2415 public long threshold; 2416 2417 /** 2418 * Set to true if the system considers itself to currently be in a low 2419 * memory situation. 2420 */ 2421 public boolean lowMemory; 2422 2423 /** @hide */ 2424 public long hiddenAppThreshold; 2425 /** @hide */ 2426 public long secondaryServerThreshold; 2427 /** @hide */ 2428 public long visibleAppThreshold; 2429 /** @hide */ 2430 public long foregroundAppThreshold; 2431 2432 public MemoryInfo() { 2433 } 2434 2435 public int describeContents() { 2436 return 0; 2437 } 2438 2439 public void writeToParcel(Parcel dest, int flags) { 2440 dest.writeLong(availMem); 2441 dest.writeLong(totalMem); 2442 dest.writeLong(threshold); 2443 dest.writeInt(lowMemory ? 1 : 0); 2444 dest.writeLong(hiddenAppThreshold); 2445 dest.writeLong(secondaryServerThreshold); 2446 dest.writeLong(visibleAppThreshold); 2447 dest.writeLong(foregroundAppThreshold); 2448 } 2449 2450 public void readFromParcel(Parcel source) { 2451 availMem = source.readLong(); 2452 totalMem = source.readLong(); 2453 threshold = source.readLong(); 2454 lowMemory = source.readInt() != 0; 2455 hiddenAppThreshold = source.readLong(); 2456 secondaryServerThreshold = source.readLong(); 2457 visibleAppThreshold = source.readLong(); 2458 foregroundAppThreshold = source.readLong(); 2459 } 2460 2461 public static final Creator<MemoryInfo> CREATOR 2462 = new Creator<MemoryInfo>() { 2463 public MemoryInfo createFromParcel(Parcel source) { 2464 return new MemoryInfo(source); 2465 } 2466 public MemoryInfo[] newArray(int size) { 2467 return new MemoryInfo[size]; 2468 } 2469 }; 2470 2471 private MemoryInfo(Parcel source) { 2472 readFromParcel(source); 2473 } 2474 } 2475 2476 /** 2477 * Return general information about the memory state of the system. This 2478 * can be used to help decide how to manage your own memory, though note 2479 * that polling is not recommended and 2480 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2481 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2482 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2483 * level of your process as needed, which gives a better hint for how to 2484 * manage its memory. 2485 */ 2486 public void getMemoryInfo(MemoryInfo outInfo) { 2487 try { 2488 getService().getMemoryInfo(outInfo); 2489 } catch (RemoteException e) { 2490 throw e.rethrowFromSystemServer(); 2491 } 2492 } 2493 2494 /** 2495 * Information you can retrieve about an ActivityStack in the system. 2496 * @hide 2497 */ 2498 public static class StackInfo implements Parcelable { 2499 public int stackId; 2500 public Rect bounds = new Rect(); 2501 public int[] taskIds; 2502 public String[] taskNames; 2503 public Rect[] taskBounds; 2504 public int[] taskUserIds; 2505 public ComponentName topActivity; 2506 public int displayId; 2507 public int userId; 2508 public boolean visible; 2509 // Index of the stack in the display's stack list, can be used for comparison of stack order 2510 public int position; 2511 /** 2512 * The full configuration the stack is currently running in. 2513 * @hide 2514 */ 2515 final public Configuration configuration = new Configuration(); 2516 2517 @Override 2518 public int describeContents() { 2519 return 0; 2520 } 2521 2522 @Override 2523 public void writeToParcel(Parcel dest, int flags) { 2524 dest.writeInt(stackId); 2525 dest.writeInt(bounds.left); 2526 dest.writeInt(bounds.top); 2527 dest.writeInt(bounds.right); 2528 dest.writeInt(bounds.bottom); 2529 dest.writeIntArray(taskIds); 2530 dest.writeStringArray(taskNames); 2531 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2532 dest.writeInt(boundsCount); 2533 for (int i = 0; i < boundsCount; i++) { 2534 dest.writeInt(taskBounds[i].left); 2535 dest.writeInt(taskBounds[i].top); 2536 dest.writeInt(taskBounds[i].right); 2537 dest.writeInt(taskBounds[i].bottom); 2538 } 2539 dest.writeIntArray(taskUserIds); 2540 dest.writeInt(displayId); 2541 dest.writeInt(userId); 2542 dest.writeInt(visible ? 1 : 0); 2543 dest.writeInt(position); 2544 if (topActivity != null) { 2545 dest.writeInt(1); 2546 topActivity.writeToParcel(dest, 0); 2547 } else { 2548 dest.writeInt(0); 2549 } 2550 configuration.writeToParcel(dest, flags); 2551 } 2552 2553 public void readFromParcel(Parcel source) { 2554 stackId = source.readInt(); 2555 bounds = new Rect( 2556 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2557 taskIds = source.createIntArray(); 2558 taskNames = source.createStringArray(); 2559 final int boundsCount = source.readInt(); 2560 if (boundsCount > 0) { 2561 taskBounds = new Rect[boundsCount]; 2562 for (int i = 0; i < boundsCount; i++) { 2563 taskBounds[i] = new Rect(); 2564 taskBounds[i].set( 2565 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2566 } 2567 } else { 2568 taskBounds = null; 2569 } 2570 taskUserIds = source.createIntArray(); 2571 displayId = source.readInt(); 2572 userId = source.readInt(); 2573 visible = source.readInt() > 0; 2574 position = source.readInt(); 2575 if (source.readInt() > 0) { 2576 topActivity = ComponentName.readFromParcel(source); 2577 } 2578 configuration.readFromParcel(source); 2579 } 2580 2581 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2582 @Override 2583 public StackInfo createFromParcel(Parcel source) { 2584 return new StackInfo(source); 2585 } 2586 @Override 2587 public StackInfo[] newArray(int size) { 2588 return new StackInfo[size]; 2589 } 2590 }; 2591 2592 public StackInfo() { 2593 } 2594 2595 private StackInfo(Parcel source) { 2596 readFromParcel(source); 2597 } 2598 2599 public String toString(String prefix) { 2600 StringBuilder sb = new StringBuilder(256); 2601 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2602 sb.append(" bounds="); sb.append(bounds.toShortString()); 2603 sb.append(" displayId="); sb.append(displayId); 2604 sb.append(" userId="); sb.append(userId); 2605 sb.append("\n"); 2606 sb.append(" configuration="); sb.append(configuration); 2607 sb.append("\n"); 2608 prefix = prefix + " "; 2609 for (int i = 0; i < taskIds.length; ++i) { 2610 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2611 sb.append(": "); sb.append(taskNames[i]); 2612 if (taskBounds != null) { 2613 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2614 } 2615 sb.append(" userId=").append(taskUserIds[i]); 2616 sb.append(" visible=").append(visible); 2617 if (topActivity != null) { 2618 sb.append(" topActivity=").append(topActivity); 2619 } 2620 sb.append("\n"); 2621 } 2622 return sb.toString(); 2623 } 2624 2625 @Override 2626 public String toString() { 2627 return toString(""); 2628 } 2629 } 2630 2631 /** 2632 * @hide 2633 */ 2634 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2635 Manifest.permission.ACCESS_INSTANT_APPS}) 2636 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2637 try { 2638 return getService().clearApplicationUserData(packageName, false, 2639 observer, UserHandle.myUserId()); 2640 } catch (RemoteException e) { 2641 throw e.rethrowFromSystemServer(); 2642 } 2643 } 2644 2645 /** 2646 * Permits an application to erase its own data from disk. This is equivalent to 2647 * the user choosing to clear the app's data from within the device settings UI. It 2648 * erases all dynamic data associated with the app -- its private data and data in its 2649 * private area on external storage -- but does not remove the installed application 2650 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2651 * clears all notifications and removes all Uri grants related to this application. 2652 * 2653 * @return {@code true} if the application successfully requested that the application's 2654 * data be erased; {@code false} otherwise. 2655 */ 2656 public boolean clearApplicationUserData() { 2657 return clearApplicationUserData(mContext.getPackageName(), null); 2658 } 2659 2660 2661 /** 2662 * Permits an application to get the persistent URI permissions granted to another. 2663 * 2664 * <p>Typically called by Settings. 2665 * 2666 * @param packageName application to look for the granted permissions 2667 * @return list of granted URI permissions 2668 * 2669 * @hide 2670 */ 2671 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2672 try { 2673 return getService().getGrantedUriPermissions(packageName, 2674 UserHandle.myUserId()); 2675 } catch (RemoteException e) { 2676 throw e.rethrowFromSystemServer(); 2677 } 2678 } 2679 2680 /** 2681 * Permits an application to clear the persistent URI permissions granted to another. 2682 * 2683 * <p>Typically called by Settings. 2684 * 2685 * @param packageName application to clear its granted permissions 2686 * 2687 * @hide 2688 */ 2689 public void clearGrantedUriPermissions(String packageName) { 2690 try { 2691 getService().clearGrantedUriPermissions(packageName, 2692 UserHandle.myUserId()); 2693 } catch (RemoteException e) { 2694 throw e.rethrowFromSystemServer(); 2695 } 2696 } 2697 2698 /** 2699 * Information you can retrieve about any processes that are in an error condition. 2700 */ 2701 public static class ProcessErrorStateInfo implements Parcelable { 2702 /** 2703 * Condition codes 2704 */ 2705 public static final int NO_ERROR = 0; 2706 public static final int CRASHED = 1; 2707 public static final int NOT_RESPONDING = 2; 2708 2709 /** 2710 * The condition that the process is in. 2711 */ 2712 public int condition; 2713 2714 /** 2715 * The process name in which the crash or error occurred. 2716 */ 2717 public String processName; 2718 2719 /** 2720 * The pid of this process; 0 if none 2721 */ 2722 public int pid; 2723 2724 /** 2725 * The kernel user-ID that has been assigned to this process; 2726 * currently this is not a unique ID (multiple applications can have 2727 * the same uid). 2728 */ 2729 public int uid; 2730 2731 /** 2732 * The activity name associated with the error, if known. May be null. 2733 */ 2734 public String tag; 2735 2736 /** 2737 * A short message describing the error condition. 2738 */ 2739 public String shortMsg; 2740 2741 /** 2742 * A long message describing the error condition. 2743 */ 2744 public String longMsg; 2745 2746 /** 2747 * The stack trace where the error originated. May be null. 2748 */ 2749 public String stackTrace; 2750 2751 /** 2752 * to be deprecated: This value will always be null. 2753 */ 2754 public byte[] crashData = null; 2755 2756 public ProcessErrorStateInfo() { 2757 } 2758 2759 @Override 2760 public int describeContents() { 2761 return 0; 2762 } 2763 2764 @Override 2765 public void writeToParcel(Parcel dest, int flags) { 2766 dest.writeInt(condition); 2767 dest.writeString(processName); 2768 dest.writeInt(pid); 2769 dest.writeInt(uid); 2770 dest.writeString(tag); 2771 dest.writeString(shortMsg); 2772 dest.writeString(longMsg); 2773 dest.writeString(stackTrace); 2774 } 2775 2776 public void readFromParcel(Parcel source) { 2777 condition = source.readInt(); 2778 processName = source.readString(); 2779 pid = source.readInt(); 2780 uid = source.readInt(); 2781 tag = source.readString(); 2782 shortMsg = source.readString(); 2783 longMsg = source.readString(); 2784 stackTrace = source.readString(); 2785 } 2786 2787 public static final Creator<ProcessErrorStateInfo> CREATOR = 2788 new Creator<ProcessErrorStateInfo>() { 2789 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2790 return new ProcessErrorStateInfo(source); 2791 } 2792 public ProcessErrorStateInfo[] newArray(int size) { 2793 return new ProcessErrorStateInfo[size]; 2794 } 2795 }; 2796 2797 private ProcessErrorStateInfo(Parcel source) { 2798 readFromParcel(source); 2799 } 2800 } 2801 2802 /** 2803 * Returns a list of any processes that are currently in an error condition. The result 2804 * will be null if all processes are running properly at this time. 2805 * 2806 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2807 * current error conditions (it will not return an empty list). This list ordering is not 2808 * specified. 2809 */ 2810 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2811 try { 2812 return getService().getProcessesInErrorState(); 2813 } catch (RemoteException e) { 2814 throw e.rethrowFromSystemServer(); 2815 } 2816 } 2817 2818 /** 2819 * Information you can retrieve about a running process. 2820 */ 2821 public static class RunningAppProcessInfo implements Parcelable { 2822 /** 2823 * The name of the process that this object is associated with 2824 */ 2825 public String processName; 2826 2827 /** 2828 * The pid of this process; 0 if none 2829 */ 2830 public int pid; 2831 2832 /** 2833 * The user id of this process. 2834 */ 2835 public int uid; 2836 2837 /** 2838 * All packages that have been loaded into the process. 2839 */ 2840 public String pkgList[]; 2841 2842 /** 2843 * Constant for {@link #flags}: this is an app that is unable to 2844 * correctly save its state when going to the background, 2845 * so it can not be killed while in the background. 2846 * @hide 2847 */ 2848 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2849 2850 /** 2851 * Constant for {@link #flags}: this process is associated with a 2852 * persistent system app. 2853 * @hide 2854 */ 2855 public static final int FLAG_PERSISTENT = 1<<1; 2856 2857 /** 2858 * Constant for {@link #flags}: this process is associated with a 2859 * persistent system app. 2860 * @hide 2861 */ 2862 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2863 2864 /** 2865 * Flags of information. May be any of 2866 * {@link #FLAG_CANT_SAVE_STATE}. 2867 * @hide 2868 */ 2869 public int flags; 2870 2871 /** 2872 * Last memory trim level reported to the process: corresponds to 2873 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2874 * ComponentCallbacks2.onTrimMemory(int)}. 2875 */ 2876 public int lastTrimLevel; 2877 2878 /** @hide */ 2879 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2880 IMPORTANCE_FOREGROUND, 2881 IMPORTANCE_FOREGROUND_SERVICE, 2882 IMPORTANCE_TOP_SLEEPING, 2883 IMPORTANCE_VISIBLE, 2884 IMPORTANCE_PERCEPTIBLE, 2885 IMPORTANCE_CANT_SAVE_STATE, 2886 IMPORTANCE_SERVICE, 2887 IMPORTANCE_CACHED, 2888 IMPORTANCE_GONE, 2889 }) 2890 @Retention(RetentionPolicy.SOURCE) 2891 public @interface Importance {} 2892 2893 /** 2894 * Constant for {@link #importance}: This process is running the 2895 * foreground UI; that is, it is the thing currently at the top of the screen 2896 * that the user is interacting with. 2897 */ 2898 public static final int IMPORTANCE_FOREGROUND = 100; 2899 2900 /** 2901 * Constant for {@link #importance}: This process is running a foreground 2902 * service, for example to perform music playback even while the user is 2903 * not immediately in the app. This generally indicates that the process 2904 * is doing something the user actively cares about. 2905 */ 2906 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2907 2908 /** 2909 * @deprecated Pre-{@link android.os.Build.VERSION_CODES#P} version of 2910 * {@link #IMPORTANCE_TOP_SLEEPING}. As of Android 2911 * {@link android.os.Build.VERSION_CODES#P}, this is considered much less 2912 * important since we want to reduce what apps can do when the screen is off. 2913 */ 2914 @Deprecated 2915 public static final int IMPORTANCE_TOP_SLEEPING_PRE_28 = 150; 2916 2917 /** 2918 * Constant for {@link #importance}: This process is running something 2919 * that is actively visible to the user, though not in the immediate 2920 * foreground. This may be running a window that is behind the current 2921 * foreground (so paused and with its state saved, not interacting with 2922 * the user, but visible to them to some degree); it may also be running 2923 * other services under the system's control that it inconsiders important. 2924 */ 2925 public static final int IMPORTANCE_VISIBLE = 200; 2926 2927 /** 2928 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 2929 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2930 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 2931 * 2932 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 2933 * on Android versions below {@link Build.VERSION_CODES#O}. 2934 * 2935 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 2936 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2937 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2938 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 2939 */ 2940 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 2941 2942 /** 2943 * Constant for {@link #importance}: This process is not something the user 2944 * is directly aware of, but is otherwise perceptible to them to some degree. 2945 */ 2946 public static final int IMPORTANCE_PERCEPTIBLE = 230; 2947 2948 /** 2949 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 2950 * this wrong value 2951 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2952 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 2953 * 2954 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 2955 * on Android versions below {@link Build.VERSION_CODES#O}. 2956 * 2957 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 2958 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2959 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2960 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 2961 * 2962 * @hide 2963 */ 2964 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 2965 2966 /** 2967 * Constant for {@link #importance}: This process is contains services 2968 * that should remain running. These are background services apps have 2969 * started, not something the user is aware of, so they may be killed by 2970 * the system relatively freely (though it is generally desired that they 2971 * stay running as long as they want to). 2972 */ 2973 public static final int IMPORTANCE_SERVICE = 300; 2974 2975 /** 2976 * Constant for {@link #importance}: This process is running the foreground 2977 * UI, but the device is asleep so it is not visible to the user. Though the 2978 * system will try hard to keep its process from being killed, in all other 2979 * ways we consider it a kind of cached process, with the limitations that go 2980 * along with that state: network access, running background services, etc. 2981 */ 2982 public static final int IMPORTANCE_TOP_SLEEPING = 325; 2983 2984 /** 2985 * Constant for {@link #importance}: This process is running an 2986 * application that can not save its state, and thus can't be killed 2987 * while in the background. This will be used with apps that have 2988 * {@link android.R.attr#cantSaveState} set on their application tag. 2989 */ 2990 public static final int IMPORTANCE_CANT_SAVE_STATE = 350; 2991 2992 /** 2993 * Constant for {@link #importance}: This process process contains 2994 * cached code that is expendable, not actively running any app components 2995 * we care about. 2996 */ 2997 public static final int IMPORTANCE_CACHED = 400; 2998 2999 /** 3000 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3001 */ 3002 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3003 3004 /** 3005 * Constant for {@link #importance}: This process is empty of any 3006 * actively running code. 3007 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3008 */ 3009 @Deprecated 3010 public static final int IMPORTANCE_EMPTY = 500; 3011 3012 /** 3013 * Constant for {@link #importance}: This process does not exist. 3014 */ 3015 public static final int IMPORTANCE_GONE = 1000; 3016 3017 /** 3018 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3019 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3020 * @hide 3021 */ 3022 public static @Importance int procStateToImportance(int procState) { 3023 if (procState == PROCESS_STATE_NONEXISTENT) { 3024 return IMPORTANCE_GONE; 3025 } else if (procState >= PROCESS_STATE_HOME) { 3026 return IMPORTANCE_CACHED; 3027 } else if (procState == PROCESS_STATE_HEAVY_WEIGHT) { 3028 return IMPORTANCE_CANT_SAVE_STATE; 3029 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3030 return IMPORTANCE_TOP_SLEEPING; 3031 } else if (procState >= PROCESS_STATE_SERVICE) { 3032 return IMPORTANCE_SERVICE; 3033 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3034 return IMPORTANCE_PERCEPTIBLE; 3035 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3036 return IMPORTANCE_VISIBLE; 3037 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3038 return IMPORTANCE_FOREGROUND_SERVICE; 3039 } else { 3040 return IMPORTANCE_FOREGROUND; 3041 } 3042 } 3043 3044 /** 3045 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3046 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3047 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3048 * client's target SDK < {@link VERSION_CODES#O}. 3049 * @hide 3050 */ 3051 public static @Importance int procStateToImportanceForClient(int procState, 3052 Context clientContext) { 3053 return procStateToImportanceForTargetSdk(procState, 3054 clientContext.getApplicationInfo().targetSdkVersion); 3055 } 3056 3057 /** 3058 * See {@link #procStateToImportanceForClient}. 3059 * @hide 3060 */ 3061 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3062 int targetSdkVersion) { 3063 final int importance = procStateToImportance(procState); 3064 3065 // For pre O apps, convert to the old, wrong values. 3066 if (targetSdkVersion < VERSION_CODES.O) { 3067 switch (importance) { 3068 case IMPORTANCE_PERCEPTIBLE: 3069 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3070 case IMPORTANCE_TOP_SLEEPING: 3071 return IMPORTANCE_TOP_SLEEPING_PRE_28; 3072 case IMPORTANCE_CANT_SAVE_STATE: 3073 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3074 } 3075 } 3076 return importance; 3077 } 3078 3079 /** @hide */ 3080 public static int importanceToProcState(@Importance int importance) { 3081 if (importance == IMPORTANCE_GONE) { 3082 return PROCESS_STATE_NONEXISTENT; 3083 } else if (importance >= IMPORTANCE_CACHED) { 3084 return PROCESS_STATE_HOME; 3085 } else if (importance >= IMPORTANCE_CANT_SAVE_STATE) { 3086 return PROCESS_STATE_HEAVY_WEIGHT; 3087 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3088 return PROCESS_STATE_TOP_SLEEPING; 3089 } else if (importance >= IMPORTANCE_SERVICE) { 3090 return PROCESS_STATE_SERVICE; 3091 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3092 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3093 } else if (importance >= IMPORTANCE_VISIBLE) { 3094 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3095 } else if (importance >= IMPORTANCE_TOP_SLEEPING_PRE_28) { 3096 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3097 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3098 return PROCESS_STATE_FOREGROUND_SERVICE; 3099 } else { 3100 return PROCESS_STATE_TOP; 3101 } 3102 } 3103 3104 /** 3105 * The relative importance level that the system places on this process. 3106 * These constants are numbered so that "more important" values are 3107 * always smaller than "less important" values. 3108 */ 3109 public @Importance int importance; 3110 3111 /** 3112 * An additional ordering within a particular {@link #importance} 3113 * category, providing finer-grained information about the relative 3114 * utility of processes within a category. This number means nothing 3115 * except that a smaller values are more recently used (and thus 3116 * more important). Currently an LRU value is only maintained for 3117 * the {@link #IMPORTANCE_CACHED} category, though others may 3118 * be maintained in the future. 3119 */ 3120 public int lru; 3121 3122 /** 3123 * Constant for {@link #importanceReasonCode}: nothing special has 3124 * been specified for the reason for this level. 3125 */ 3126 public static final int REASON_UNKNOWN = 0; 3127 3128 /** 3129 * Constant for {@link #importanceReasonCode}: one of the application's 3130 * content providers is being used by another process. The pid of 3131 * the client process is in {@link #importanceReasonPid} and the 3132 * target provider in this process is in 3133 * {@link #importanceReasonComponent}. 3134 */ 3135 public static final int REASON_PROVIDER_IN_USE = 1; 3136 3137 /** 3138 * Constant for {@link #importanceReasonCode}: one of the application's 3139 * content providers is being used by another process. The pid of 3140 * the client process is in {@link #importanceReasonPid} and the 3141 * target provider in this process is in 3142 * {@link #importanceReasonComponent}. 3143 */ 3144 public static final int REASON_SERVICE_IN_USE = 2; 3145 3146 /** 3147 * The reason for {@link #importance}, if any. 3148 */ 3149 public int importanceReasonCode; 3150 3151 /** 3152 * For the specified values of {@link #importanceReasonCode}, this 3153 * is the process ID of the other process that is a client of this 3154 * process. This will be 0 if no other process is using this one. 3155 */ 3156 public int importanceReasonPid; 3157 3158 /** 3159 * For the specified values of {@link #importanceReasonCode}, this 3160 * is the name of the component that is being used in this process. 3161 */ 3162 public ComponentName importanceReasonComponent; 3163 3164 /** 3165 * When {@link #importanceReasonPid} is non-0, this is the importance 3166 * of the other pid. @hide 3167 */ 3168 public int importanceReasonImportance; 3169 3170 /** 3171 * Current process state, as per PROCESS_STATE_* constants. 3172 * @hide 3173 */ 3174 public int processState; 3175 3176 public RunningAppProcessInfo() { 3177 importance = IMPORTANCE_FOREGROUND; 3178 importanceReasonCode = REASON_UNKNOWN; 3179 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3180 } 3181 3182 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3183 processName = pProcessName; 3184 pid = pPid; 3185 pkgList = pArr; 3186 } 3187 3188 public int describeContents() { 3189 return 0; 3190 } 3191 3192 public void writeToParcel(Parcel dest, int flags) { 3193 dest.writeString(processName); 3194 dest.writeInt(pid); 3195 dest.writeInt(uid); 3196 dest.writeStringArray(pkgList); 3197 dest.writeInt(this.flags); 3198 dest.writeInt(lastTrimLevel); 3199 dest.writeInt(importance); 3200 dest.writeInt(lru); 3201 dest.writeInt(importanceReasonCode); 3202 dest.writeInt(importanceReasonPid); 3203 ComponentName.writeToParcel(importanceReasonComponent, dest); 3204 dest.writeInt(importanceReasonImportance); 3205 dest.writeInt(processState); 3206 } 3207 3208 public void readFromParcel(Parcel source) { 3209 processName = source.readString(); 3210 pid = source.readInt(); 3211 uid = source.readInt(); 3212 pkgList = source.readStringArray(); 3213 flags = source.readInt(); 3214 lastTrimLevel = source.readInt(); 3215 importance = source.readInt(); 3216 lru = source.readInt(); 3217 importanceReasonCode = source.readInt(); 3218 importanceReasonPid = source.readInt(); 3219 importanceReasonComponent = ComponentName.readFromParcel(source); 3220 importanceReasonImportance = source.readInt(); 3221 processState = source.readInt(); 3222 } 3223 3224 public static final Creator<RunningAppProcessInfo> CREATOR = 3225 new Creator<RunningAppProcessInfo>() { 3226 public RunningAppProcessInfo createFromParcel(Parcel source) { 3227 return new RunningAppProcessInfo(source); 3228 } 3229 public RunningAppProcessInfo[] newArray(int size) { 3230 return new RunningAppProcessInfo[size]; 3231 } 3232 }; 3233 3234 private RunningAppProcessInfo(Parcel source) { 3235 readFromParcel(source); 3236 } 3237 } 3238 3239 /** 3240 * Returns a list of application processes installed on external media 3241 * that are running on the device. 3242 * 3243 * <p><b>Note: this method is only intended for debugging or building 3244 * a user-facing process management UI.</b></p> 3245 * 3246 * @return Returns a list of ApplicationInfo records, or null if none 3247 * This list ordering is not specified. 3248 * @hide 3249 */ 3250 public List<ApplicationInfo> getRunningExternalApplications() { 3251 try { 3252 return getService().getRunningExternalApplications(); 3253 } catch (RemoteException e) { 3254 throw e.rethrowFromSystemServer(); 3255 } 3256 } 3257 3258 /** 3259 * Sets the memory trim mode for a process and schedules a memory trim operation. 3260 * 3261 * <p><b>Note: this method is only intended for testing framework.</b></p> 3262 * 3263 * @return Returns true if successful. 3264 * @hide 3265 */ 3266 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3267 try { 3268 return getService().setProcessMemoryTrimLevel(process, userId, 3269 level); 3270 } catch (RemoteException e) { 3271 throw e.rethrowFromSystemServer(); 3272 } 3273 } 3274 3275 /** 3276 * Returns a list of application processes that are running on the device. 3277 * 3278 * <p><b>Note: this method is only intended for debugging or building 3279 * a user-facing process management UI.</b></p> 3280 * 3281 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3282 * running processes (it will not return an empty list). This list ordering is not 3283 * specified. 3284 */ 3285 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3286 try { 3287 return getService().getRunningAppProcesses(); 3288 } catch (RemoteException e) { 3289 throw e.rethrowFromSystemServer(); 3290 } 3291 } 3292 3293 /** 3294 * Return the importance of a given package name, based on the processes that are 3295 * currently running. The return value is one of the importance constants defined 3296 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3297 * processes that this package has code running inside of. If there are no processes 3298 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3299 * @hide 3300 */ 3301 @SystemApi @TestApi 3302 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3303 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3304 try { 3305 int procState = getService().getPackageProcessState(packageName, 3306 mContext.getOpPackageName()); 3307 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3308 } catch (RemoteException e) { 3309 throw e.rethrowFromSystemServer(); 3310 } 3311 } 3312 3313 /** 3314 * Return the importance of a given uid, based on the processes that are 3315 * currently running. The return value is one of the importance constants defined 3316 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3317 * processes that this uid has running. If there are no processes 3318 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3319 * @hide 3320 */ 3321 @SystemApi @TestApi 3322 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3323 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3324 try { 3325 int procState = getService().getUidProcessState(uid, 3326 mContext.getOpPackageName()); 3327 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3328 } catch (RemoteException e) { 3329 throw e.rethrowFromSystemServer(); 3330 } 3331 } 3332 3333 /** 3334 * Callback to get reports about changes to the importance of a uid. Use with 3335 * {@link #addOnUidImportanceListener}. 3336 * @hide 3337 */ 3338 @SystemApi @TestApi 3339 public interface OnUidImportanceListener { 3340 /** 3341 * The importance if a given uid has changed. Will be one of the importance 3342 * values in {@link RunningAppProcessInfo}; 3343 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3344 * when the uid is no longer running at all. This callback will happen on a thread 3345 * from a thread pool, not the main UI thread. 3346 * @param uid The uid whose importance has changed. 3347 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3348 */ 3349 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3350 } 3351 3352 /** 3353 * Start monitoring changes to the imoportance of uids running in the system. 3354 * @param listener The listener callback that will receive change reports. 3355 * @param importanceCutpoint The level of importance in which the caller is interested 3356 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3357 * is used here, you will receive a call each time a uids importance transitions between 3358 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3359 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3360 * 3361 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3362 * permission to use this feature.</p> 3363 * 3364 * @throws IllegalArgumentException If the listener is already registered. 3365 * @throws SecurityException If the caller does not hold 3366 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3367 * @hide 3368 */ 3369 @SystemApi @TestApi 3370 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3371 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3372 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3373 synchronized (this) { 3374 if (mImportanceListeners.containsKey(listener)) { 3375 throw new IllegalArgumentException("Listener already registered: " + listener); 3376 } 3377 // TODO: implement the cut point in the system process to avoid IPCs. 3378 UidObserver observer = new UidObserver(listener, mContext); 3379 try { 3380 getService().registerUidObserver(observer, 3381 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3382 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3383 mContext.getOpPackageName()); 3384 } catch (RemoteException e) { 3385 throw e.rethrowFromSystemServer(); 3386 } 3387 mImportanceListeners.put(listener, observer); 3388 } 3389 } 3390 3391 /** 3392 * Remove an importance listener that was previously registered with 3393 * {@link #addOnUidImportanceListener}. 3394 * 3395 * @throws IllegalArgumentException If the listener is not registered. 3396 * @hide 3397 */ 3398 @SystemApi @TestApi 3399 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3400 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3401 synchronized (this) { 3402 UidObserver observer = mImportanceListeners.remove(listener); 3403 if (observer == null) { 3404 throw new IllegalArgumentException("Listener not registered: " + listener); 3405 } 3406 try { 3407 getService().unregisterUidObserver(observer); 3408 } catch (RemoteException e) { 3409 throw e.rethrowFromSystemServer(); 3410 } 3411 } 3412 } 3413 3414 /** 3415 * Return global memory state information for the calling process. This 3416 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3417 * only fields that will be filled in are 3418 * {@link RunningAppProcessInfo#pid}, 3419 * {@link RunningAppProcessInfo#uid}, 3420 * {@link RunningAppProcessInfo#lastTrimLevel}, 3421 * {@link RunningAppProcessInfo#importance}, 3422 * {@link RunningAppProcessInfo#lru}, and 3423 * {@link RunningAppProcessInfo#importanceReasonCode}. 3424 */ 3425 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3426 try { 3427 getService().getMyMemoryState(outState); 3428 } catch (RemoteException e) { 3429 throw e.rethrowFromSystemServer(); 3430 } 3431 } 3432 3433 /** 3434 * Return information about the memory usage of one or more processes. 3435 * 3436 * <p><b>Note: this method is only intended for debugging or building 3437 * a user-facing process management UI.</b></p> 3438 * 3439 * @param pids The pids of the processes whose memory usage is to be 3440 * retrieved. 3441 * @return Returns an array of memory information, one for each 3442 * requested pid. 3443 */ 3444 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3445 try { 3446 return getService().getProcessMemoryInfo(pids); 3447 } catch (RemoteException e) { 3448 throw e.rethrowFromSystemServer(); 3449 } 3450 } 3451 3452 /** 3453 * @deprecated This is now just a wrapper for 3454 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3455 * is no longer available to applications because it allows them to 3456 * break other applications by removing their alarms, stopping their 3457 * services, etc. 3458 */ 3459 @Deprecated 3460 public void restartPackage(String packageName) { 3461 killBackgroundProcesses(packageName); 3462 } 3463 3464 /** 3465 * Have the system immediately kill all background processes associated 3466 * with the given package. This is the same as the kernel killing those 3467 * processes to reclaim memory; the system will take care of restarting 3468 * these processes in the future as needed. 3469 * 3470 * @param packageName The name of the package whose processes are to 3471 * be killed. 3472 */ 3473 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3474 public void killBackgroundProcesses(String packageName) { 3475 try { 3476 getService().killBackgroundProcesses(packageName, 3477 UserHandle.myUserId()); 3478 } catch (RemoteException e) { 3479 throw e.rethrowFromSystemServer(); 3480 } 3481 } 3482 3483 /** 3484 * Kills the specified UID. 3485 * @param uid The UID to kill. 3486 * @param reason The reason for the kill. 3487 * 3488 * @hide 3489 */ 3490 @SystemApi 3491 @RequiresPermission(Manifest.permission.KILL_UID) 3492 public void killUid(int uid, String reason) { 3493 try { 3494 getService().killUid(UserHandle.getAppId(uid), 3495 UserHandle.getUserId(uid), reason); 3496 } catch (RemoteException e) { 3497 throw e.rethrowFromSystemServer(); 3498 } 3499 } 3500 3501 /** 3502 * Have the system perform a force stop of everything associated with 3503 * the given application package. All processes that share its uid 3504 * will be killed, all services it has running stopped, all activities 3505 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3506 * broadcast will be sent, so that any of its registered alarms can 3507 * be stopped, notifications removed, etc. 3508 * 3509 * <p>You must hold the permission 3510 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3511 * call this method. 3512 * 3513 * @param packageName The name of the package to be stopped. 3514 * @param userId The user for which the running package is to be stopped. 3515 * 3516 * @hide This is not available to third party applications due to 3517 * it allowing them to break other applications by stopping their 3518 * services, removing their alarms, etc. 3519 */ 3520 public void forceStopPackageAsUser(String packageName, int userId) { 3521 try { 3522 getService().forceStopPackage(packageName, userId); 3523 } catch (RemoteException e) { 3524 throw e.rethrowFromSystemServer(); 3525 } 3526 } 3527 3528 /** 3529 * @see #forceStopPackageAsUser(String, int) 3530 * @hide 3531 */ 3532 @SystemApi 3533 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3534 public void forceStopPackage(String packageName) { 3535 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3536 } 3537 3538 /** 3539 * Get the device configuration attributes. 3540 */ 3541 public ConfigurationInfo getDeviceConfigurationInfo() { 3542 try { 3543 return getService().getDeviceConfigurationInfo(); 3544 } catch (RemoteException e) { 3545 throw e.rethrowFromSystemServer(); 3546 } 3547 } 3548 3549 /** 3550 * Get the preferred density of icons for the launcher. This is used when 3551 * custom drawables are created (e.g., for shortcuts). 3552 * 3553 * @return density in terms of DPI 3554 */ 3555 public int getLauncherLargeIconDensity() { 3556 final Resources res = mContext.getResources(); 3557 final int density = res.getDisplayMetrics().densityDpi; 3558 final int sw = res.getConfiguration().smallestScreenWidthDp; 3559 3560 if (sw < 600) { 3561 // Smaller than approx 7" tablets, use the regular icon size. 3562 return density; 3563 } 3564 3565 switch (density) { 3566 case DisplayMetrics.DENSITY_LOW: 3567 return DisplayMetrics.DENSITY_MEDIUM; 3568 case DisplayMetrics.DENSITY_MEDIUM: 3569 return DisplayMetrics.DENSITY_HIGH; 3570 case DisplayMetrics.DENSITY_TV: 3571 return DisplayMetrics.DENSITY_XHIGH; 3572 case DisplayMetrics.DENSITY_HIGH: 3573 return DisplayMetrics.DENSITY_XHIGH; 3574 case DisplayMetrics.DENSITY_XHIGH: 3575 return DisplayMetrics.DENSITY_XXHIGH; 3576 case DisplayMetrics.DENSITY_XXHIGH: 3577 return DisplayMetrics.DENSITY_XHIGH * 2; 3578 default: 3579 // The density is some abnormal value. Return some other 3580 // abnormal value that is a reasonable scaling of it. 3581 return (int)((density*1.5f)+.5f); 3582 } 3583 } 3584 3585 /** 3586 * Get the preferred launcher icon size. This is used when custom drawables 3587 * are created (e.g., for shortcuts). 3588 * 3589 * @return dimensions of square icons in terms of pixels 3590 */ 3591 public int getLauncherLargeIconSize() { 3592 return getLauncherLargeIconSizeInner(mContext); 3593 } 3594 3595 static int getLauncherLargeIconSizeInner(Context context) { 3596 final Resources res = context.getResources(); 3597 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3598 final int sw = res.getConfiguration().smallestScreenWidthDp; 3599 3600 if (sw < 600) { 3601 // Smaller than approx 7" tablets, use the regular icon size. 3602 return size; 3603 } 3604 3605 final int density = res.getDisplayMetrics().densityDpi; 3606 3607 switch (density) { 3608 case DisplayMetrics.DENSITY_LOW: 3609 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3610 case DisplayMetrics.DENSITY_MEDIUM: 3611 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3612 case DisplayMetrics.DENSITY_TV: 3613 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3614 case DisplayMetrics.DENSITY_HIGH: 3615 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3616 case DisplayMetrics.DENSITY_XHIGH: 3617 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3618 case DisplayMetrics.DENSITY_XXHIGH: 3619 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3620 default: 3621 // The density is some abnormal value. Return some other 3622 // abnormal value that is a reasonable scaling of it. 3623 return (int)((size*1.5f) + .5f); 3624 } 3625 } 3626 3627 /** 3628 * Returns "true" if the user interface is currently being messed with 3629 * by a monkey. 3630 */ 3631 public static boolean isUserAMonkey() { 3632 try { 3633 return getService().isUserAMonkey(); 3634 } catch (RemoteException e) { 3635 throw e.rethrowFromSystemServer(); 3636 } 3637 } 3638 3639 /** 3640 * Returns "true" if device is running in a test harness. 3641 */ 3642 public static boolean isRunningInTestHarness() { 3643 return SystemProperties.getBoolean("ro.test_harness", false); 3644 } 3645 3646 /** 3647 * Returns the launch count of each installed package. 3648 * 3649 * @hide 3650 */ 3651 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3652 try { 3653 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3654 ServiceManager.getService("usagestats")); 3655 if (usageStatsService == null) { 3656 return new HashMap<String, Integer>(); 3657 } 3658 3659 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3660 ActivityThread.currentPackageName()); 3661 if (allPkgUsageStats == null) { 3662 return new HashMap<String, Integer>(); 3663 } 3664 3665 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3666 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3667 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3668 } 3669 3670 return launchCounts; 3671 } catch (RemoteException e) { 3672 Log.w(TAG, "Could not query launch counts", e); 3673 return new HashMap<String, Integer>(); 3674 } 3675 }*/ 3676 3677 /** @hide */ 3678 public static int checkComponentPermission(String permission, int uid, 3679 int owningUid, boolean exported) { 3680 // Root, system server get to do everything. 3681 final int appId = UserHandle.getAppId(uid); 3682 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3683 return PackageManager.PERMISSION_GRANTED; 3684 } 3685 // Isolated processes don't get any permissions. 3686 if (UserHandle.isIsolated(uid)) { 3687 return PackageManager.PERMISSION_DENIED; 3688 } 3689 // If there is a uid that owns whatever is being accessed, it has 3690 // blanket access to it regardless of the permissions it requires. 3691 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3692 return PackageManager.PERMISSION_GRANTED; 3693 } 3694 // If the target is not exported, then nobody else can get to it. 3695 if (!exported) { 3696 /* 3697 RuntimeException here = new RuntimeException("here"); 3698 here.fillInStackTrace(); 3699 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3700 here); 3701 */ 3702 return PackageManager.PERMISSION_DENIED; 3703 } 3704 if (permission == null) { 3705 return PackageManager.PERMISSION_GRANTED; 3706 } 3707 try { 3708 return AppGlobals.getPackageManager() 3709 .checkUidPermission(permission, uid); 3710 } catch (RemoteException e) { 3711 throw e.rethrowFromSystemServer(); 3712 } 3713 } 3714 3715 /** @hide */ 3716 public static int checkUidPermission(String permission, int uid) { 3717 try { 3718 return AppGlobals.getPackageManager() 3719 .checkUidPermission(permission, uid); 3720 } catch (RemoteException e) { 3721 throw e.rethrowFromSystemServer(); 3722 } 3723 } 3724 3725 /** 3726 * @hide 3727 * Helper for dealing with incoming user arguments to system service calls. 3728 * Takes care of checking permissions and converting USER_CURRENT to the 3729 * actual current user. 3730 * 3731 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3732 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3733 * @param userId The user id argument supplied by the caller -- this is the user 3734 * they want to run as. 3735 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3736 * to get a USER_ALL returned and deal with it correctly. If false, 3737 * an exception will be thrown if USER_ALL is supplied. 3738 * @param requireFull If true, the caller must hold 3739 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3740 * different user than their current process; otherwise they must hold 3741 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3742 * @param name Optional textual name of the incoming call; only for generating error messages. 3743 * @param callerPackage Optional package name of caller; only for error messages. 3744 * 3745 * @return Returns the user ID that the call should run as. Will always be a concrete 3746 * user number, unless <var>allowAll</var> is true in which case it could also be 3747 * USER_ALL. 3748 */ 3749 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3750 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3751 if (UserHandle.getUserId(callingUid) == userId) { 3752 return userId; 3753 } 3754 try { 3755 return getService().handleIncomingUser(callingPid, 3756 callingUid, userId, allowAll, requireFull, name, callerPackage); 3757 } catch (RemoteException e) { 3758 throw e.rethrowFromSystemServer(); 3759 } 3760 } 3761 3762 /** 3763 * Gets the userId of the current foreground user. Requires system permissions. 3764 * @hide 3765 */ 3766 @SystemApi 3767 @RequiresPermission(anyOf = { 3768 "android.permission.INTERACT_ACROSS_USERS", 3769 "android.permission.INTERACT_ACROSS_USERS_FULL" 3770 }) 3771 public static int getCurrentUser() { 3772 UserInfo ui; 3773 try { 3774 ui = getService().getCurrentUser(); 3775 return ui != null ? ui.id : 0; 3776 } catch (RemoteException e) { 3777 throw e.rethrowFromSystemServer(); 3778 } 3779 } 3780 3781 /** 3782 * @param userid the user's id. Zero indicates the default user. 3783 * @hide 3784 */ 3785 public boolean switchUser(int userid) { 3786 try { 3787 return getService().switchUser(userid); 3788 } catch (RemoteException e) { 3789 throw e.rethrowFromSystemServer(); 3790 } 3791 } 3792 3793 /** 3794 * Logs out current current foreground user by switching to the system user and stopping the 3795 * user being switched from. 3796 * @hide 3797 */ 3798 public static void logoutCurrentUser() { 3799 int currentUser = ActivityManager.getCurrentUser(); 3800 if (currentUser != UserHandle.USER_SYSTEM) { 3801 try { 3802 getService().switchUser(UserHandle.USER_SYSTEM); 3803 getService().stopUser(currentUser, /* force= */ false, null); 3804 } catch (RemoteException e) { 3805 e.rethrowFromSystemServer(); 3806 } 3807 } 3808 } 3809 3810 /** {@hide} */ 3811 public static final int FLAG_OR_STOPPED = 1 << 0; 3812 /** {@hide} */ 3813 public static final int FLAG_AND_LOCKED = 1 << 1; 3814 /** {@hide} */ 3815 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3816 /** {@hide} */ 3817 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3818 3819 /** 3820 * Return whether the given user is actively running. This means that 3821 * the user is in the "started" state, not "stopped" -- it is currently 3822 * allowed to run code through scheduled alarms, receiving broadcasts, 3823 * etc. A started user may be either the current foreground user or a 3824 * background user; the result here does not distinguish between the two. 3825 * @param userId the user's id. Zero indicates the default user. 3826 * @hide 3827 */ 3828 public boolean isUserRunning(int userId) { 3829 try { 3830 return getService().isUserRunning(userId, 0); 3831 } catch (RemoteException e) { 3832 throw e.rethrowFromSystemServer(); 3833 } 3834 } 3835 3836 /** {@hide} */ 3837 public boolean isVrModePackageEnabled(ComponentName component) { 3838 try { 3839 return getService().isVrModePackageEnabled(component); 3840 } catch (RemoteException e) { 3841 throw e.rethrowFromSystemServer(); 3842 } 3843 } 3844 3845 /** 3846 * Perform a system dump of various state associated with the given application 3847 * package name. This call blocks while the dump is being performed, so should 3848 * not be done on a UI thread. The data will be written to the given file 3849 * descriptor as text. 3850 * @param fd The file descriptor that the dump should be written to. The file 3851 * descriptor is <em>not</em> closed by this function; the caller continues to 3852 * own it. 3853 * @param packageName The name of the package that is to be dumped. 3854 */ 3855 @RequiresPermission(Manifest.permission.DUMP) 3856 public void dumpPackageState(FileDescriptor fd, String packageName) { 3857 dumpPackageStateStatic(fd, packageName); 3858 } 3859 3860 /** 3861 * @hide 3862 */ 3863 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3864 FileOutputStream fout = new FileOutputStream(fd); 3865 PrintWriter pw = new FastPrintWriter(fout); 3866 dumpService(pw, fd, "package", new String[] { packageName }); 3867 pw.println(); 3868 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3869 "-a", "package", packageName }); 3870 pw.println(); 3871 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3872 pw.println(); 3873 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3874 pw.println(); 3875 dumpService(pw, fd, "usagestats", new String[] { packageName }); 3876 pw.println(); 3877 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3878 pw.flush(); 3879 } 3880 3881 /** 3882 * @hide 3883 */ 3884 public static boolean isSystemReady() { 3885 if (!sSystemReady) { 3886 if (ActivityThread.isSystem()) { 3887 sSystemReady = 3888 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3889 } else { 3890 // Since this is being called from outside system server, system should be 3891 // ready by now. 3892 sSystemReady = true; 3893 } 3894 } 3895 return sSystemReady; 3896 } 3897 3898 /** 3899 * @hide 3900 */ 3901 public static void broadcastStickyIntent(Intent intent, int userId) { 3902 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3903 } 3904 3905 /** 3906 * Convenience for sending a sticky broadcast. For internal use only. 3907 * 3908 * @hide 3909 */ 3910 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3911 try { 3912 getService().broadcastIntent( 3913 null, intent, null, null, Activity.RESULT_OK, null, null, 3914 null /*permission*/, appOp, null, false, true, userId); 3915 } catch (RemoteException ex) { 3916 } 3917 } 3918 3919 /** 3920 * @hide 3921 */ 3922 public static void noteWakeupAlarm(PendingIntent ps, WorkSource workSource, int sourceUid, 3923 String sourcePkg, String tag) { 3924 try { 3925 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, workSource, 3926 sourceUid, sourcePkg, tag); 3927 } catch (RemoteException ex) { 3928 } 3929 } 3930 3931 /** 3932 * @hide 3933 */ 3934 public static void noteAlarmStart(PendingIntent ps, WorkSource workSource, int sourceUid, 3935 String tag) { 3936 try { 3937 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, workSource, 3938 sourceUid, tag); 3939 } catch (RemoteException ex) { 3940 } 3941 } 3942 3943 3944 /** 3945 * @hide 3946 */ 3947 public static void noteAlarmFinish(PendingIntent ps, WorkSource workSource, int sourceUid, 3948 String tag) { 3949 try { 3950 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, workSource, 3951 sourceUid, tag); 3952 } catch (RemoteException ex) { 3953 } 3954 } 3955 3956 /** 3957 * @hide 3958 */ 3959 public static IActivityManager getService() { 3960 return IActivityManagerSingleton.get(); 3961 } 3962 3963 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3964 new Singleton<IActivityManager>() { 3965 @Override 3966 protected IActivityManager create() { 3967 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3968 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3969 return am; 3970 } 3971 }; 3972 3973 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3974 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3975 IBinder service = ServiceManager.checkService(name); 3976 if (service == null) { 3977 pw.println(" (Service not found)"); 3978 pw.flush(); 3979 return; 3980 } 3981 pw.flush(); 3982 if (service instanceof Binder) { 3983 // If this is a local object, it doesn't make sense to do an async dump with it, 3984 // just directly dump. 3985 try { 3986 service.dump(fd, args); 3987 } catch (Throwable e) { 3988 pw.println("Failure dumping service:"); 3989 e.printStackTrace(pw); 3990 pw.flush(); 3991 } 3992 } else { 3993 // Otherwise, it is remote, do the dump asynchronously to avoid blocking. 3994 TransferPipe tp = null; 3995 try { 3996 pw.flush(); 3997 tp = new TransferPipe(); 3998 tp.setBufferPrefix(" "); 3999 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4000 tp.go(fd, 10000); 4001 } catch (Throwable e) { 4002 if (tp != null) { 4003 tp.kill(); 4004 } 4005 pw.println("Failure dumping service:"); 4006 e.printStackTrace(pw); 4007 } 4008 } 4009 } 4010 4011 /** 4012 * Request that the system start watching for the calling process to exceed a pss 4013 * size as given here. Once called, the system will look for any occasions where it 4014 * sees the associated process with a larger pss size and, when this happens, automatically 4015 * pull a heap dump from it and allow the user to share the data. Note that this request 4016 * continues running even if the process is killed and restarted. To remove the watch, 4017 * use {@link #clearWatchHeapLimit()}. 4018 * 4019 * <p>This API only work if the calling process has been marked as 4020 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4021 * (userdebug or eng) build.</p> 4022 * 4023 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4024 * handle heap limit reports themselves.</p> 4025 * 4026 * @param pssSize The size in bytes to set the limit at. 4027 */ 4028 public void setWatchHeapLimit(long pssSize) { 4029 try { 4030 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4031 mContext.getPackageName()); 4032 } catch (RemoteException e) { 4033 throw e.rethrowFromSystemServer(); 4034 } 4035 } 4036 4037 /** 4038 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4039 * If your package has an activity handling this action, it will be launched with the 4040 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4041 * match the activty must support this action and a MIME type of "*/*". 4042 */ 4043 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4044 4045 /** 4046 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4047 */ 4048 public void clearWatchHeapLimit() { 4049 try { 4050 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4051 } catch (RemoteException e) { 4052 throw e.rethrowFromSystemServer(); 4053 } 4054 } 4055 4056 /** 4057 * Return whether currently in lock task mode. When in this mode 4058 * no new tasks can be created or switched to. 4059 * 4060 * @see Activity#startLockTask() 4061 * 4062 * @deprecated Use {@link #getLockTaskModeState} instead. 4063 */ 4064 @Deprecated 4065 public boolean isInLockTaskMode() { 4066 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4067 } 4068 4069 /** 4070 * Return the current state of task locking. The three possible outcomes 4071 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4072 * and {@link #LOCK_TASK_MODE_PINNED}. 4073 * 4074 * @see Activity#startLockTask() 4075 */ 4076 public int getLockTaskModeState() { 4077 try { 4078 return getService().getLockTaskModeState(); 4079 } catch (RemoteException e) { 4080 throw e.rethrowFromSystemServer(); 4081 } 4082 } 4083 4084 /** 4085 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4086 * thread can be a VR thread in a process at a time, and that thread may be subject to 4087 * restrictions on the amount of time it can run. 4088 * 4089 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4090 * method will return to normal operation, and calling this method will do nothing while 4091 * persistent VR mode is enabled. 4092 * 4093 * To reset the VR thread for an application, a tid of 0 can be passed. 4094 * 4095 * @see android.os.Process#myTid() 4096 * @param tid tid of the VR thread 4097 */ 4098 public static void setVrThread(int tid) { 4099 try { 4100 getService().setVrThread(tid); 4101 } catch (RemoteException e) { 4102 // pass 4103 } 4104 } 4105 4106 /** 4107 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4108 * beyond a single process. Only one thread can be a 4109 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4110 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4111 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4112 * persistent VR thread loses its new scheduling priority; this method must be called again to 4113 * set the persistent thread. 4114 * 4115 * To reset the persistent VR thread, a tid of 0 can be passed. 4116 * 4117 * @see android.os.Process#myTid() 4118 * @param tid tid of the VR thread 4119 * @hide 4120 */ 4121 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4122 public static void setPersistentVrThread(int tid) { 4123 try { 4124 getService().setPersistentVrThread(tid); 4125 } catch (RemoteException e) { 4126 // pass 4127 } 4128 } 4129 4130 /** 4131 * The AppTask allows you to manage your own application's tasks. 4132 * See {@link android.app.ActivityManager#getAppTasks()} 4133 */ 4134 public static class AppTask { 4135 private IAppTask mAppTaskImpl; 4136 4137 /** @hide */ 4138 public AppTask(IAppTask task) { 4139 mAppTaskImpl = task; 4140 } 4141 4142 /** 4143 * Finishes all activities in this task and removes it from the recent tasks list. 4144 */ 4145 public void finishAndRemoveTask() { 4146 try { 4147 mAppTaskImpl.finishAndRemoveTask(); 4148 } catch (RemoteException e) { 4149 throw e.rethrowFromSystemServer(); 4150 } 4151 } 4152 4153 /** 4154 * Get the RecentTaskInfo associated with this task. 4155 * 4156 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4157 */ 4158 public RecentTaskInfo getTaskInfo() { 4159 try { 4160 return mAppTaskImpl.getTaskInfo(); 4161 } catch (RemoteException e) { 4162 throw e.rethrowFromSystemServer(); 4163 } 4164 } 4165 4166 /** 4167 * Bring this task to the foreground. If it contains activities, they will be 4168 * brought to the foreground with it and their instances re-created if needed. 4169 * If it doesn't contain activities, the root activity of the task will be 4170 * re-launched. 4171 */ 4172 public void moveToFront() { 4173 try { 4174 mAppTaskImpl.moveToFront(); 4175 } catch (RemoteException e) { 4176 throw e.rethrowFromSystemServer(); 4177 } 4178 } 4179 4180 /** 4181 * Start an activity in this task. Brings the task to the foreground. If this task 4182 * is not currently active (that is, its id < 0), then a new activity for the given 4183 * Intent will be launched as the root of the task and the task brought to the 4184 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4185 * an activity to launch in a new task, then a new activity for the given Intent will 4186 * be launched on top of the task and the task brought to the foreground. If this 4187 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4188 * or would otherwise be launched in to a new task, then the activity not launched but 4189 * this task be brought to the foreground and a new intent delivered to the top 4190 * activity if appropriate. 4191 * 4192 * <p>In other words, you generally want to use an Intent here that does not specify 4193 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4194 * and let the system do the right thing.</p> 4195 * 4196 * @param intent The Intent describing the new activity to be launched on the task. 4197 * @param options Optional launch options. 4198 * 4199 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4200 */ 4201 public void startActivity(Context context, Intent intent, Bundle options) { 4202 ActivityThread thread = ActivityThread.currentActivityThread(); 4203 thread.getInstrumentation().execStartActivityFromAppTask(context, 4204 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4205 } 4206 4207 /** 4208 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4209 * Intent of this AppTask. 4210 * 4211 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4212 * be set; otherwise, it will be cleared. 4213 */ 4214 public void setExcludeFromRecents(boolean exclude) { 4215 try { 4216 mAppTaskImpl.setExcludeFromRecents(exclude); 4217 } catch (RemoteException e) { 4218 throw e.rethrowFromSystemServer(); 4219 } 4220 } 4221 } 4222} 4223