ActivityManager.java revision 173020c2ef0a1dc109a9a39afc3e107badcd407e
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.pm.ActivityInfo; 32import android.content.pm.ApplicationInfo; 33import android.content.pm.ConfigurationInfo; 34import android.content.pm.IPackageDataObserver; 35import android.content.pm.PackageManager; 36import android.content.pm.ParceledListSlice; 37import android.content.pm.UserInfo; 38import android.content.res.Configuration; 39import android.content.res.Resources; 40import android.graphics.Bitmap; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.GraphicBuffer; 44import android.graphics.Matrix; 45import android.graphics.Point; 46import android.graphics.Rect; 47import android.os.BatteryStats; 48import android.os.Binder; 49import android.os.Build; 50import android.os.Build.VERSION_CODES; 51import android.os.Bundle; 52import android.os.Debug; 53import android.os.Handler; 54import android.os.IBinder; 55import android.os.Parcel; 56import android.os.Parcelable; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.ServiceManager; 60import android.os.SystemProperties; 61import android.os.UserHandle; 62import android.os.WorkSource; 63import android.text.TextUtils; 64import android.util.ArrayMap; 65import android.util.DisplayMetrics; 66import android.util.Singleton; 67import android.util.Size; 68 69import com.android.internal.app.procstats.ProcessStats; 70import com.android.internal.os.RoSystemProperties; 71import com.android.internal.os.TransferPipe; 72import com.android.internal.util.FastPrintWriter; 73import com.android.internal.util.MemInfoReader; 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, then new fields must be added 555 // to frameworks/base/core/proto/android/app/enums.proto and the following method must 556 // be updated to correctly map between them. 557 // However, if the current ActivityManager values are merely modified, no update should be made 558 // to enums.proto, to which values can only be added but never modified. Note that the proto 559 // versions do NOT have the ordering restrictions of the ActivityManager process state. 560 /** 561 * Maps ActivityManager.PROCESS_STATE_ values to enums.proto ProcessStateEnum value. 562 * 563 * @param amInt a process state of the form ActivityManager.PROCESS_STATE_ 564 * @return the value of the corresponding enums.proto ProcessStateEnum value. 565 * @hide 566 */ 567 public static final int processStateAmToProto(int amInt) { 568 switch (amInt) { 569 case PROCESS_STATE_UNKNOWN: 570 return AppProtoEnums.PROCESS_STATE_UNKNOWN; 571 case PROCESS_STATE_PERSISTENT: 572 return AppProtoEnums.PROCESS_STATE_PERSISTENT; 573 case PROCESS_STATE_PERSISTENT_UI: 574 return AppProtoEnums.PROCESS_STATE_PERSISTENT_UI; 575 case PROCESS_STATE_TOP: 576 return AppProtoEnums.PROCESS_STATE_TOP; 577 case PROCESS_STATE_FOREGROUND_SERVICE: 578 return AppProtoEnums.PROCESS_STATE_FOREGROUND_SERVICE; 579 case PROCESS_STATE_BOUND_FOREGROUND_SERVICE: 580 return AppProtoEnums.PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 581 case PROCESS_STATE_IMPORTANT_FOREGROUND: 582 return AppProtoEnums.PROCESS_STATE_IMPORTANT_FOREGROUND; 583 case PROCESS_STATE_IMPORTANT_BACKGROUND: 584 return AppProtoEnums.PROCESS_STATE_IMPORTANT_BACKGROUND; 585 case PROCESS_STATE_TRANSIENT_BACKGROUND: 586 return AppProtoEnums.PROCESS_STATE_TRANSIENT_BACKGROUND; 587 case PROCESS_STATE_BACKUP: 588 return AppProtoEnums.PROCESS_STATE_BACKUP; 589 case PROCESS_STATE_SERVICE: 590 return AppProtoEnums.PROCESS_STATE_SERVICE; 591 case PROCESS_STATE_RECEIVER: 592 return AppProtoEnums.PROCESS_STATE_RECEIVER; 593 case PROCESS_STATE_TOP_SLEEPING: 594 return AppProtoEnums.PROCESS_STATE_TOP_SLEEPING; 595 case PROCESS_STATE_HEAVY_WEIGHT: 596 return AppProtoEnums.PROCESS_STATE_HEAVY_WEIGHT; 597 case PROCESS_STATE_HOME: 598 return AppProtoEnums.PROCESS_STATE_HOME; 599 case PROCESS_STATE_LAST_ACTIVITY: 600 return AppProtoEnums.PROCESS_STATE_LAST_ACTIVITY; 601 case PROCESS_STATE_CACHED_ACTIVITY: 602 return AppProtoEnums.PROCESS_STATE_CACHED_ACTIVITY; 603 case PROCESS_STATE_CACHED_ACTIVITY_CLIENT: 604 return AppProtoEnums.PROCESS_STATE_CACHED_ACTIVITY_CLIENT; 605 case PROCESS_STATE_CACHED_RECENT: 606 return AppProtoEnums.PROCESS_STATE_CACHED_RECENT; 607 case PROCESS_STATE_CACHED_EMPTY: 608 return AppProtoEnums.PROCESS_STATE_CACHED_EMPTY; 609 case PROCESS_STATE_NONEXISTENT: 610 return AppProtoEnums.PROCESS_STATE_NONEXISTENT; 611 default: 612 // ActivityManager process state (amInt) 613 // could not be mapped to an AppProtoEnums ProcessState state. 614 return AppProtoEnums.PROCESS_STATE_UNKNOWN_TO_PROTO; 615 } 616 } 617 618 /** @hide The lowest process state number */ 619 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 620 621 /** @hide The highest process state number */ 622 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 623 624 /** @hide Should this process state be considered a background state? */ 625 public static final boolean isProcStateBackground(int procState) { 626 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 627 } 628 629 /** @hide requestType for assist context: only basic information. */ 630 public static final int ASSIST_CONTEXT_BASIC = 0; 631 632 /** @hide requestType for assist context: generate full AssistStructure. */ 633 public static final int ASSIST_CONTEXT_FULL = 1; 634 635 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 636 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 637 638 /** @hide Flag for registerUidObserver: report changes in process state. */ 639 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 640 641 /** @hide Flag for registerUidObserver: report uid gone. */ 642 public static final int UID_OBSERVER_GONE = 1<<1; 643 644 /** @hide Flag for registerUidObserver: report uid has become idle. */ 645 public static final int UID_OBSERVER_IDLE = 1<<2; 646 647 /** @hide Flag for registerUidObserver: report uid has become active. */ 648 public static final int UID_OBSERVER_ACTIVE = 1<<3; 649 650 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 651 public static final int UID_OBSERVER_CACHED = 1<<4; 652 653 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 654 public static final int APP_START_MODE_NORMAL = 0; 655 656 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 657 public static final int APP_START_MODE_DELAYED = 1; 658 659 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 660 * rigid errors (throwing exception). */ 661 public static final int APP_START_MODE_DELAYED_RIGID = 2; 662 663 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 664 * launches; this is the mode for ephemeral apps. */ 665 public static final int APP_START_MODE_DISABLED = 3; 666 667 /** 668 * Lock task mode is not active. 669 */ 670 public static final int LOCK_TASK_MODE_NONE = 0; 671 672 /** 673 * Full lock task mode is active. 674 */ 675 public static final int LOCK_TASK_MODE_LOCKED = 1; 676 677 /** 678 * App pinning mode is active. 679 */ 680 public static final int LOCK_TASK_MODE_PINNED = 2; 681 682 Point mAppTaskThumbnailSize; 683 684 /*package*/ ActivityManager(Context context, Handler handler) { 685 mContext = context; 686 } 687 688 /** 689 * Returns whether the launch was successful. 690 * @hide 691 */ 692 public static final boolean isStartResultSuccessful(int result) { 693 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 694 } 695 696 /** 697 * Returns whether the launch result was a fatal error. 698 * @hide 699 */ 700 public static final boolean isStartResultFatalError(int result) { 701 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 702 } 703 704 /** 705 * Screen compatibility mode: the application most always run in 706 * compatibility mode. 707 * @hide 708 */ 709 public static final int COMPAT_MODE_ALWAYS = -1; 710 711 /** 712 * Screen compatibility mode: the application can never run in 713 * compatibility mode. 714 * @hide 715 */ 716 public static final int COMPAT_MODE_NEVER = -2; 717 718 /** 719 * Screen compatibility mode: unknown. 720 * @hide 721 */ 722 public static final int COMPAT_MODE_UNKNOWN = -3; 723 724 /** 725 * Screen compatibility mode: the application currently has compatibility 726 * mode disabled. 727 * @hide 728 */ 729 public static final int COMPAT_MODE_DISABLED = 0; 730 731 /** 732 * Screen compatibility mode: the application currently has compatibility 733 * mode enabled. 734 * @hide 735 */ 736 public static final int COMPAT_MODE_ENABLED = 1; 737 738 /** 739 * Screen compatibility mode: request to toggle the application's 740 * compatibility mode. 741 * @hide 742 */ 743 public static final int COMPAT_MODE_TOGGLE = 2; 744 745 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 746 SystemProperties.getBoolean("debug.force_low_ram", false); 747 748 /** @hide */ 749 @TestApi 750 public static class StackId { 751 752 private StackId() { 753 } 754 755 /** Invalid stack ID. */ 756 public static final int INVALID_STACK_ID = -1; 757 758 } 759 760 /** 761 * Parameter to {@link android.app.IActivityManager#setTaskWindowingModeSplitScreenPrimary} 762 * which specifies the position of the created docked stack at the top half of the screen if 763 * in portrait mode or at the left half of the screen if in landscape mode. 764 * @hide 765 */ 766 @TestApi 767 public static final int SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT = 0; 768 769 /** 770 * Parameter to {@link android.app.IActivityManager#setTaskWindowingModeSplitScreenPrimary} 771 * which 772 * specifies the position of the created docked stack at the bottom half of the screen if 773 * in portrait mode or at the right half of the screen if in landscape mode. 774 * @hide 775 */ 776 @TestApi 777 public static final int SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 778 779 /** 780 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 781 * that the resize doesn't need to preserve the window, and can be skipped if bounds 782 * is unchanged. This mode is used by window manager in most cases. 783 * @hide 784 */ 785 public static final int RESIZE_MODE_SYSTEM = 0; 786 787 /** 788 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 789 * that the resize should preserve the window if possible. 790 * @hide 791 */ 792 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 793 794 /** 795 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 796 * that the resize should be performed even if the bounds appears unchanged. 797 * @hide 798 */ 799 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 800 801 /** 802 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 803 * manager during a screen rotation. 804 * @hide 805 */ 806 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 807 808 /** 809 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 810 * resize is due to a drag action. 811 * @hide 812 */ 813 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 814 815 /** 816 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 817 * that the resize should preserve the window if possible, and should not be skipped 818 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 819 * is ending. 820 * @hide 821 */ 822 public static final int RESIZE_MODE_USER_FORCED = 823 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 824 825 /** @hide */ 826 public int getFrontActivityScreenCompatMode() { 827 try { 828 return getService().getFrontActivityScreenCompatMode(); 829 } catch (RemoteException e) { 830 throw e.rethrowFromSystemServer(); 831 } 832 } 833 834 /** @hide */ 835 public void setFrontActivityScreenCompatMode(int mode) { 836 try { 837 getService().setFrontActivityScreenCompatMode(mode); 838 } catch (RemoteException e) { 839 throw e.rethrowFromSystemServer(); 840 } 841 } 842 843 /** @hide */ 844 public int getPackageScreenCompatMode(String packageName) { 845 try { 846 return getService().getPackageScreenCompatMode(packageName); 847 } catch (RemoteException e) { 848 throw e.rethrowFromSystemServer(); 849 } 850 } 851 852 /** @hide */ 853 public void setPackageScreenCompatMode(String packageName, int mode) { 854 try { 855 getService().setPackageScreenCompatMode(packageName, mode); 856 } catch (RemoteException e) { 857 throw e.rethrowFromSystemServer(); 858 } 859 } 860 861 /** @hide */ 862 public boolean getPackageAskScreenCompat(String packageName) { 863 try { 864 return getService().getPackageAskScreenCompat(packageName); 865 } catch (RemoteException e) { 866 throw e.rethrowFromSystemServer(); 867 } 868 } 869 870 /** @hide */ 871 public void setPackageAskScreenCompat(String packageName, boolean ask) { 872 try { 873 getService().setPackageAskScreenCompat(packageName, ask); 874 } catch (RemoteException e) { 875 throw e.rethrowFromSystemServer(); 876 } 877 } 878 879 /** 880 * Return the approximate per-application memory class of the current 881 * device. This gives you an idea of how hard a memory limit you should 882 * impose on your application to let the overall system work best. The 883 * returned value is in megabytes; the baseline Android memory class is 884 * 16 (which happens to be the Java heap limit of those devices); some 885 * devices with more memory may return 24 or even higher numbers. 886 */ 887 public int getMemoryClass() { 888 return staticGetMemoryClass(); 889 } 890 891 /** @hide */ 892 static public int staticGetMemoryClass() { 893 // Really brain dead right now -- just take this from the configured 894 // vm heap size, and assume it is in megabytes and thus ends with "m". 895 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 896 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 897 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 898 } 899 return staticGetLargeMemoryClass(); 900 } 901 902 /** 903 * Return the approximate per-application memory class of the current 904 * device when an application is running with a large heap. This is the 905 * space available for memory-intensive applications; most applications 906 * should not need this amount of memory, and should instead stay with the 907 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 908 * This may be the same size as {@link #getMemoryClass()} on memory 909 * constrained devices, or it may be significantly larger on devices with 910 * a large amount of available RAM. 911 * 912 * <p>This is the size of the application's Dalvik heap if it has 913 * specified <code>android:largeHeap="true"</code> in its manifest. 914 */ 915 public int getLargeMemoryClass() { 916 return staticGetLargeMemoryClass(); 917 } 918 919 /** @hide */ 920 static public int staticGetLargeMemoryClass() { 921 // Really brain dead right now -- just take this from the configured 922 // vm heap size, and assume it is in megabytes and thus ends with "m". 923 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 924 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 925 } 926 927 /** 928 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 929 * is ultimately up to the device configuration, but currently it generally means 930 * something with 1GB or less of RAM. This is mostly intended to be used by apps 931 * to determine whether they should turn off certain features that require more RAM. 932 */ 933 public boolean isLowRamDevice() { 934 return isLowRamDeviceStatic(); 935 } 936 937 /** @hide */ 938 public static boolean isLowRamDeviceStatic() { 939 return RoSystemProperties.CONFIG_LOW_RAM || 940 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 941 } 942 943 /** 944 * Returns true if this is a small battery device. Exactly whether a device is considered to be 945 * small battery is ultimately up to the device configuration, but currently it generally means 946 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 947 * to determine whether certain features should be altered to account for a drastically smaller 948 * battery. 949 * @hide 950 */ 951 public static boolean isSmallBatteryDevice() { 952 return RoSystemProperties.CONFIG_SMALL_BATTERY; 953 } 954 955 /** 956 * Used by persistent processes to determine if they are running on a 957 * higher-end device so should be okay using hardware drawing acceleration 958 * (which tends to consume a lot more RAM). 959 * @hide 960 */ 961 static public boolean isHighEndGfx() { 962 return !isLowRamDeviceStatic() 963 && !RoSystemProperties.CONFIG_AVOID_GFX_ACCEL 964 && !Resources.getSystem() 965 .getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 966 } 967 968 /** 969 * Return the total number of bytes of RAM this device has. 970 * @hide 971 */ 972 @TestApi 973 public long getTotalRam() { 974 MemInfoReader memreader = new MemInfoReader(); 975 memreader.readMemInfo(); 976 return memreader.getTotalSize(); 977 } 978 979 /** 980 * Return the maximum number of recents entries that we will maintain and show. 981 * @hide 982 */ 983 static public int getMaxRecentTasksStatic() { 984 if (gMaxRecentTasks < 0) { 985 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 986 } 987 return gMaxRecentTasks; 988 } 989 990 /** 991 * Return the default limit on the number of recents that an app can make. 992 * @hide 993 */ 994 static public int getDefaultAppRecentsLimitStatic() { 995 return getMaxRecentTasksStatic() / 6; 996 } 997 998 /** 999 * Return the maximum limit on the number of recents that an app can make. 1000 * @hide 1001 */ 1002 static public int getMaxAppRecentsLimitStatic() { 1003 return getMaxRecentTasksStatic() / 2; 1004 } 1005 1006 /** 1007 * Returns true if the system supports at least one form of multi-window. 1008 * E.g. freeform, split-screen, picture-in-picture. 1009 * @hide 1010 */ 1011 @TestApi 1012 static public boolean supportsMultiWindow(Context context) { 1013 // On watches, multi-window is used to present essential system UI, and thus it must be 1014 // supported regardless of device memory characteristics. 1015 boolean isWatch = context.getPackageManager().hasSystemFeature( 1016 PackageManager.FEATURE_WATCH); 1017 return (!isLowRamDeviceStatic() || isWatch) 1018 && Resources.getSystem().getBoolean( 1019 com.android.internal.R.bool.config_supportsMultiWindow); 1020 } 1021 1022 /** 1023 * Returns true if the system supports split screen multi-window. 1024 * @hide 1025 */ 1026 @TestApi 1027 static public boolean supportsSplitScreenMultiWindow(Context context) { 1028 return supportsMultiWindow(context) 1029 && Resources.getSystem().getBoolean( 1030 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1031 } 1032 1033 /** @removed */ 1034 @Deprecated 1035 public static int getMaxNumPictureInPictureActions() { 1036 return 3; 1037 } 1038 1039 /** 1040 * Information you can set and retrieve about the current activity within the recent task list. 1041 */ 1042 public static class TaskDescription implements Parcelable { 1043 /** @hide */ 1044 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1045 private static final String ATTR_TASKDESCRIPTIONLABEL = 1046 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1047 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1048 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1049 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1050 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1051 private static final String ATTR_TASKDESCRIPTIONICON_FILENAME = 1052 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1053 private static final String ATTR_TASKDESCRIPTIONICON_RESOURCE = 1054 ATTR_TASKDESCRIPTION_PREFIX + "icon_resource"; 1055 1056 private String mLabel; 1057 private Bitmap mIcon; 1058 private int mIconRes; 1059 private String mIconFilename; 1060 private int mColorPrimary; 1061 private int mColorBackground; 1062 private int mStatusBarColor; 1063 private int mNavigationBarColor; 1064 1065 /** 1066 * Creates the TaskDescription to the specified values. 1067 * 1068 * @param label A label and description of the current state of this task. 1069 * @param icon An icon that represents the current state of this task. 1070 * @param colorPrimary A color to override the theme's primary color. This color must be 1071 * opaque. 1072 * @deprecated use TaskDescription constructor with icon resource instead 1073 */ 1074 @Deprecated 1075 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1076 this(label, icon, 0, null, colorPrimary, 0, 0, 0); 1077 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1078 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1079 } 1080 } 1081 1082 /** 1083 * Creates the TaskDescription to the specified values. 1084 * 1085 * @param label A label and description of the current state of this task. 1086 * @param iconRes A drawable resource of an icon that represents the current state of this 1087 * activity. 1088 * @param colorPrimary A color to override the theme's primary color. This color must be 1089 * opaque. 1090 */ 1091 public TaskDescription(String label, @DrawableRes int iconRes, int colorPrimary) { 1092 this(label, null, iconRes, null, colorPrimary, 0, 0, 0); 1093 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1094 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1095 } 1096 } 1097 1098 /** 1099 * Creates the TaskDescription to the specified values. 1100 * 1101 * @param label A label and description of the current state of this activity. 1102 * @param icon An icon that represents the current state of this activity. 1103 * @deprecated use TaskDescription constructor with icon resource instead 1104 */ 1105 @Deprecated 1106 public TaskDescription(String label, Bitmap icon) { 1107 this(label, icon, 0, null, 0, 0, 0, 0); 1108 } 1109 1110 /** 1111 * Creates the TaskDescription to the specified values. 1112 * 1113 * @param label A label and description of the current state of this activity. 1114 * @param iconRes A drawable resource of an icon that represents the current state of this 1115 * activity. 1116 */ 1117 public TaskDescription(String label, @DrawableRes int iconRes) { 1118 this(label, null, iconRes, null, 0, 0, 0, 0); 1119 } 1120 1121 /** 1122 * Creates the TaskDescription to the specified values. 1123 * 1124 * @param label A label and description of the current state of this activity. 1125 */ 1126 public TaskDescription(String label) { 1127 this(label, null, 0, null, 0, 0, 0, 0); 1128 } 1129 1130 /** 1131 * Creates an empty TaskDescription. 1132 */ 1133 public TaskDescription() { 1134 this(null, null, 0, null, 0, 0, 0, 0); 1135 } 1136 1137 /** @hide */ 1138 public TaskDescription(String label, Bitmap bitmap, int iconRes, String iconFilename, 1139 int colorPrimary, int colorBackground, int statusBarColor, int navigationBarColor) { 1140 mLabel = label; 1141 mIcon = bitmap; 1142 mIconRes = iconRes; 1143 mIconFilename = iconFilename; 1144 mColorPrimary = colorPrimary; 1145 mColorBackground = colorBackground; 1146 mStatusBarColor = statusBarColor; 1147 mNavigationBarColor = navigationBarColor; 1148 } 1149 1150 /** 1151 * Creates a copy of another TaskDescription. 1152 */ 1153 public TaskDescription(TaskDescription td) { 1154 copyFrom(td); 1155 } 1156 1157 /** 1158 * Copies this the values from another TaskDescription. 1159 * @hide 1160 */ 1161 public void copyFrom(TaskDescription other) { 1162 mLabel = other.mLabel; 1163 mIcon = other.mIcon; 1164 mIconRes = other.mIconRes; 1165 mIconFilename = other.mIconFilename; 1166 mColorPrimary = other.mColorPrimary; 1167 mColorBackground = other.mColorBackground; 1168 mStatusBarColor = other.mStatusBarColor; 1169 mNavigationBarColor = other.mNavigationBarColor; 1170 } 1171 1172 /** 1173 * Copies this the values from another TaskDescription, but preserves the hidden fields 1174 * if they weren't set on {@code other} 1175 * @hide 1176 */ 1177 public void copyFromPreserveHiddenFields(TaskDescription other) { 1178 mLabel = other.mLabel; 1179 mIcon = other.mIcon; 1180 mIconRes = other.mIconRes; 1181 mIconFilename = other.mIconFilename; 1182 mColorPrimary = other.mColorPrimary; 1183 if (other.mColorBackground != 0) { 1184 mColorBackground = other.mColorBackground; 1185 } 1186 if (other.mStatusBarColor != 0) { 1187 mStatusBarColor = other.mStatusBarColor; 1188 } 1189 if (other.mNavigationBarColor != 0) { 1190 mNavigationBarColor = other.mNavigationBarColor; 1191 } 1192 } 1193 1194 private TaskDescription(Parcel source) { 1195 readFromParcel(source); 1196 } 1197 1198 /** 1199 * Sets the label for this task description. 1200 * @hide 1201 */ 1202 public void setLabel(String label) { 1203 mLabel = label; 1204 } 1205 1206 /** 1207 * Sets the primary color for this task description. 1208 * @hide 1209 */ 1210 public void setPrimaryColor(int primaryColor) { 1211 // Ensure that the given color is valid 1212 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1213 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1214 } 1215 mColorPrimary = primaryColor; 1216 } 1217 1218 /** 1219 * Sets the background color for this task description. 1220 * @hide 1221 */ 1222 public void setBackgroundColor(int backgroundColor) { 1223 // Ensure that the given color is valid 1224 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1225 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1226 } 1227 mColorBackground = backgroundColor; 1228 } 1229 1230 /** 1231 * @hide 1232 */ 1233 public void setStatusBarColor(int statusBarColor) { 1234 mStatusBarColor = statusBarColor; 1235 } 1236 1237 /** 1238 * @hide 1239 */ 1240 public void setNavigationBarColor(int navigationBarColor) { 1241 mNavigationBarColor = navigationBarColor; 1242 } 1243 1244 /** 1245 * Sets the icon for this task description. 1246 * @hide 1247 */ 1248 public void setIcon(Bitmap icon) { 1249 mIcon = icon; 1250 } 1251 1252 /** 1253 * Sets the icon resource for this task description. 1254 * @hide 1255 */ 1256 public void setIcon(int iconRes) { 1257 mIconRes = iconRes; 1258 } 1259 1260 /** 1261 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1262 * bitmap. 1263 * @hide 1264 */ 1265 public void setIconFilename(String iconFilename) { 1266 mIconFilename = iconFilename; 1267 mIcon = null; 1268 } 1269 1270 /** 1271 * @return The label and description of the current state of this task. 1272 */ 1273 public String getLabel() { 1274 return mLabel; 1275 } 1276 1277 /** 1278 * @return The icon that represents the current state of this task. 1279 */ 1280 public Bitmap getIcon() { 1281 if (mIcon != null) { 1282 return mIcon; 1283 } 1284 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1285 } 1286 1287 /** @hide */ 1288 @TestApi 1289 public int getIconResource() { 1290 return mIconRes; 1291 } 1292 1293 /** @hide */ 1294 @TestApi 1295 public String getIconFilename() { 1296 return mIconFilename; 1297 } 1298 1299 /** @hide */ 1300 public Bitmap getInMemoryIcon() { 1301 return mIcon; 1302 } 1303 1304 /** @hide */ 1305 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1306 if (iconFilename != null) { 1307 try { 1308 return getService().getTaskDescriptionIcon(iconFilename, 1309 userId); 1310 } catch (RemoteException e) { 1311 throw e.rethrowFromSystemServer(); 1312 } 1313 } 1314 return null; 1315 } 1316 1317 /** 1318 * @return The color override on the theme's primary color. 1319 */ 1320 public int getPrimaryColor() { 1321 return mColorPrimary; 1322 } 1323 1324 /** 1325 * @return The background color. 1326 * @hide 1327 */ 1328 public int getBackgroundColor() { 1329 return mColorBackground; 1330 } 1331 1332 /** 1333 * @hide 1334 */ 1335 public int getStatusBarColor() { 1336 return mStatusBarColor; 1337 } 1338 1339 /** 1340 * @hide 1341 */ 1342 public int getNavigationBarColor() { 1343 return mNavigationBarColor; 1344 } 1345 1346 /** @hide */ 1347 public void saveToXml(XmlSerializer out) throws IOException { 1348 if (mLabel != null) { 1349 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1350 } 1351 if (mColorPrimary != 0) { 1352 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1353 Integer.toHexString(mColorPrimary)); 1354 } 1355 if (mColorBackground != 0) { 1356 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1357 Integer.toHexString(mColorBackground)); 1358 } 1359 if (mIconFilename != null) { 1360 out.attribute(null, ATTR_TASKDESCRIPTIONICON_FILENAME, mIconFilename); 1361 } 1362 if (mIconRes != 0) { 1363 out.attribute(null, ATTR_TASKDESCRIPTIONICON_RESOURCE, Integer.toString(mIconRes)); 1364 } 1365 } 1366 1367 /** @hide */ 1368 public void restoreFromXml(String attrName, String attrValue) { 1369 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1370 setLabel(attrValue); 1371 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1372 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1373 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1374 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1375 } else if (ATTR_TASKDESCRIPTIONICON_FILENAME.equals(attrName)) { 1376 setIconFilename(attrValue); 1377 } else if (ATTR_TASKDESCRIPTIONICON_RESOURCE.equals(attrName)) { 1378 setIcon(Integer.parseInt(attrValue, 10)); 1379 } 1380 } 1381 1382 @Override 1383 public int describeContents() { 1384 return 0; 1385 } 1386 1387 @Override 1388 public void writeToParcel(Parcel dest, int flags) { 1389 if (mLabel == null) { 1390 dest.writeInt(0); 1391 } else { 1392 dest.writeInt(1); 1393 dest.writeString(mLabel); 1394 } 1395 if (mIcon == null) { 1396 dest.writeInt(0); 1397 } else { 1398 dest.writeInt(1); 1399 mIcon.writeToParcel(dest, 0); 1400 } 1401 dest.writeInt(mIconRes); 1402 dest.writeInt(mColorPrimary); 1403 dest.writeInt(mColorBackground); 1404 dest.writeInt(mStatusBarColor); 1405 dest.writeInt(mNavigationBarColor); 1406 if (mIconFilename == null) { 1407 dest.writeInt(0); 1408 } else { 1409 dest.writeInt(1); 1410 dest.writeString(mIconFilename); 1411 } 1412 } 1413 1414 public void readFromParcel(Parcel source) { 1415 mLabel = source.readInt() > 0 ? source.readString() : null; 1416 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1417 mIconRes = source.readInt(); 1418 mColorPrimary = source.readInt(); 1419 mColorBackground = source.readInt(); 1420 mStatusBarColor = source.readInt(); 1421 mNavigationBarColor = source.readInt(); 1422 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1423 } 1424 1425 public static final Creator<TaskDescription> CREATOR 1426 = new Creator<TaskDescription>() { 1427 public TaskDescription createFromParcel(Parcel source) { 1428 return new TaskDescription(source); 1429 } 1430 public TaskDescription[] newArray(int size) { 1431 return new TaskDescription[size]; 1432 } 1433 }; 1434 1435 @Override 1436 public String toString() { 1437 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1438 " IconRes: " + mIconRes + " IconFilename: " + mIconFilename + 1439 " colorPrimary: " + mColorPrimary + " colorBackground: " + mColorBackground + 1440 " statusBarColor: " + mColorBackground + 1441 " navigationBarColor: " + mNavigationBarColor; 1442 } 1443 } 1444 1445 /** 1446 * Information you can retrieve about tasks that the user has most recently 1447 * started or visited. 1448 */ 1449 public static class RecentTaskInfo implements Parcelable { 1450 /** 1451 * If this task is currently running, this is the identifier for it. 1452 * If it is not running, this will be -1. 1453 */ 1454 public int id; 1455 1456 /** 1457 * The true identifier of this task, valid even if it is not running. 1458 */ 1459 public int persistentId; 1460 1461 /** 1462 * The original Intent used to launch the task. You can use this 1463 * Intent to re-launch the task (if it is no longer running) or bring 1464 * the current task to the front. 1465 */ 1466 public Intent baseIntent; 1467 1468 /** 1469 * If this task was started from an alias, this is the actual 1470 * activity component that was initially started; the component of 1471 * the baseIntent in this case is the name of the actual activity 1472 * implementation that the alias referred to. Otherwise, this is null. 1473 */ 1474 public ComponentName origActivity; 1475 1476 /** 1477 * The actual activity component that started the task. 1478 * @hide 1479 */ 1480 @Nullable 1481 public ComponentName realActivity; 1482 1483 /** 1484 * Description of the task's last state. 1485 */ 1486 public CharSequence description; 1487 1488 /** 1489 * The id of the ActivityStack this Task was on most recently. 1490 * @hide 1491 */ 1492 public int stackId; 1493 1494 /** 1495 * The id of the user the task was running as. 1496 * @hide 1497 */ 1498 public int userId; 1499 1500 /** 1501 * The first time this task was active. 1502 * @hide 1503 */ 1504 public long firstActiveTime; 1505 1506 /** 1507 * The last time this task was active. 1508 * @hide 1509 */ 1510 public long lastActiveTime; 1511 1512 /** 1513 * The recent activity values for the highest activity in the stack to have set the values. 1514 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1515 */ 1516 public TaskDescription taskDescription; 1517 1518 /** 1519 * Task affiliation for grouping with other tasks. 1520 */ 1521 public int affiliatedTaskId; 1522 1523 /** 1524 * Task affiliation color of the source task with the affiliated task id. 1525 * 1526 * @hide 1527 */ 1528 public int affiliatedTaskColor; 1529 1530 /** 1531 * The component launched as the first activity in the task. 1532 * This can be considered the "application" of this task. 1533 */ 1534 public ComponentName baseActivity; 1535 1536 /** 1537 * The activity component at the top of the history stack of the task. 1538 * This is what the user is currently doing. 1539 */ 1540 public ComponentName topActivity; 1541 1542 /** 1543 * Number of activities in this task. 1544 */ 1545 public int numActivities; 1546 1547 /** 1548 * The bounds of the task. 1549 * @hide 1550 */ 1551 public Rect bounds; 1552 1553 /** 1554 * True if the task can go in the docked stack. 1555 * @hide 1556 */ 1557 public boolean supportsSplitScreenMultiWindow; 1558 1559 /** 1560 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1561 * @hide 1562 */ 1563 public int resizeMode; 1564 1565 /** 1566 * The current configuration this task is in. 1567 * @hide 1568 */ 1569 final public Configuration configuration = new Configuration(); 1570 1571 public RecentTaskInfo() { 1572 } 1573 1574 @Override 1575 public int describeContents() { 1576 return 0; 1577 } 1578 1579 @Override 1580 public void writeToParcel(Parcel dest, int flags) { 1581 dest.writeInt(id); 1582 dest.writeInt(persistentId); 1583 if (baseIntent != null) { 1584 dest.writeInt(1); 1585 baseIntent.writeToParcel(dest, 0); 1586 } else { 1587 dest.writeInt(0); 1588 } 1589 ComponentName.writeToParcel(origActivity, dest); 1590 ComponentName.writeToParcel(realActivity, dest); 1591 TextUtils.writeToParcel(description, dest, 1592 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1593 if (taskDescription != null) { 1594 dest.writeInt(1); 1595 taskDescription.writeToParcel(dest, 0); 1596 } else { 1597 dest.writeInt(0); 1598 } 1599 dest.writeInt(stackId); 1600 dest.writeInt(userId); 1601 dest.writeLong(lastActiveTime); 1602 dest.writeInt(affiliatedTaskId); 1603 dest.writeInt(affiliatedTaskColor); 1604 ComponentName.writeToParcel(baseActivity, dest); 1605 ComponentName.writeToParcel(topActivity, dest); 1606 dest.writeInt(numActivities); 1607 if (bounds != null) { 1608 dest.writeInt(1); 1609 bounds.writeToParcel(dest, 0); 1610 } else { 1611 dest.writeInt(0); 1612 } 1613 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1614 dest.writeInt(resizeMode); 1615 configuration.writeToParcel(dest, flags); 1616 } 1617 1618 public void readFromParcel(Parcel source) { 1619 id = source.readInt(); 1620 persistentId = source.readInt(); 1621 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1622 origActivity = ComponentName.readFromParcel(source); 1623 realActivity = ComponentName.readFromParcel(source); 1624 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1625 taskDescription = source.readInt() > 0 ? 1626 TaskDescription.CREATOR.createFromParcel(source) : null; 1627 stackId = source.readInt(); 1628 userId = source.readInt(); 1629 lastActiveTime = source.readLong(); 1630 affiliatedTaskId = source.readInt(); 1631 affiliatedTaskColor = source.readInt(); 1632 baseActivity = ComponentName.readFromParcel(source); 1633 topActivity = ComponentName.readFromParcel(source); 1634 numActivities = source.readInt(); 1635 bounds = source.readInt() > 0 ? 1636 Rect.CREATOR.createFromParcel(source) : null; 1637 supportsSplitScreenMultiWindow = source.readInt() == 1; 1638 resizeMode = source.readInt(); 1639 configuration.readFromParcel(source); 1640 } 1641 1642 public static final Creator<RecentTaskInfo> CREATOR 1643 = new Creator<RecentTaskInfo>() { 1644 public RecentTaskInfo createFromParcel(Parcel source) { 1645 return new RecentTaskInfo(source); 1646 } 1647 public RecentTaskInfo[] newArray(int size) { 1648 return new RecentTaskInfo[size]; 1649 } 1650 }; 1651 1652 private RecentTaskInfo(Parcel source) { 1653 readFromParcel(source); 1654 } 1655 } 1656 1657 /** 1658 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1659 * that have set their 1660 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1661 */ 1662 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1663 1664 /** 1665 * Provides a list that does not contain any 1666 * recent tasks that currently are not available to the user. 1667 */ 1668 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1669 1670 /** 1671 * <p></p>Return a list of the tasks that the user has recently launched, with 1672 * the most recent being first and older ones after in order. 1673 * 1674 * <p><b>Note: this method is only intended for debugging and presenting 1675 * task management user interfaces</b>. This should never be used for 1676 * core logic in an application, such as deciding between different 1677 * behaviors based on the information found here. Such uses are 1678 * <em>not</em> supported, and will likely break in the future. For 1679 * example, if multiple applications can be actively running at the 1680 * same time, assumptions made about the meaning of the data here for 1681 * purposes of control flow will be incorrect.</p> 1682 * 1683 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1684 * no longer available to third party applications: the introduction of 1685 * document-centric recents means 1686 * it can leak personal information to the caller. For backwards compatibility, 1687 * it will still return a small subset of its data: at least the caller's 1688 * own tasks (though see {@link #getAppTasks()} for the correct supported 1689 * way to retrieve that information), and possibly some other tasks 1690 * such as home that are known to not be sensitive. 1691 * 1692 * @param maxNum The maximum number of entries to return in the list. The 1693 * actual number returned may be smaller, depending on how many tasks the 1694 * user has started and the maximum number the system can remember. 1695 * @param flags Information about what to return. May be any combination 1696 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1697 * 1698 * @return Returns a list of RecentTaskInfo records describing each of 1699 * the recent tasks. 1700 */ 1701 @Deprecated 1702 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1703 throws SecurityException { 1704 try { 1705 if (maxNum < 0) { 1706 throw new IllegalArgumentException("The requested number of tasks should be >= 0"); 1707 } 1708 return getService().getRecentTasks(maxNum, flags, mContext.getUserId()).getList(); 1709 } catch (RemoteException e) { 1710 throw e.rethrowFromSystemServer(); 1711 } 1712 } 1713 1714 /** 1715 * Information you can retrieve about a particular task that is currently 1716 * "running" in the system. Note that a running task does not mean the 1717 * given task actually has a process it is actively running in; it simply 1718 * means that the user has gone to it and never closed it, but currently 1719 * the system may have killed its process and is only holding on to its 1720 * last state in order to restart it when the user returns. 1721 */ 1722 public static class RunningTaskInfo implements Parcelable { 1723 /** 1724 * A unique identifier for this task. 1725 */ 1726 public int id; 1727 1728 /** 1729 * The stack that currently contains this task. 1730 * @hide 1731 */ 1732 public int stackId; 1733 1734 /** 1735 * The component launched as the first activity in the task. This can 1736 * be considered the "application" of this task. 1737 */ 1738 public ComponentName baseActivity; 1739 1740 /** 1741 * The activity component at the top of the history stack of the task. 1742 * This is what the user is currently doing. 1743 */ 1744 public ComponentName topActivity; 1745 1746 /** 1747 * Thumbnail representation of the task's current state. Currently 1748 * always null. 1749 */ 1750 public Bitmap thumbnail; 1751 1752 /** 1753 * Description of the task's current state. 1754 */ 1755 public CharSequence description; 1756 1757 /** 1758 * Number of activities in this task. 1759 */ 1760 public int numActivities; 1761 1762 /** 1763 * Number of activities that are currently running (not stopped 1764 * and persisted) in this task. 1765 */ 1766 public int numRunning; 1767 1768 /** 1769 * Last time task was run. For sorting. 1770 * @hide 1771 */ 1772 public long lastActiveTime; 1773 1774 /** 1775 * True if the task can go in the docked stack. 1776 * @hide 1777 */ 1778 public boolean supportsSplitScreenMultiWindow; 1779 1780 /** 1781 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1782 * @hide 1783 */ 1784 public int resizeMode; 1785 1786 /** 1787 * The full configuration the task is currently running in. 1788 * @hide 1789 */ 1790 final public Configuration configuration = new Configuration(); 1791 1792 public RunningTaskInfo() { 1793 } 1794 1795 public int describeContents() { 1796 return 0; 1797 } 1798 1799 public void writeToParcel(Parcel dest, int flags) { 1800 dest.writeInt(id); 1801 dest.writeInt(stackId); 1802 ComponentName.writeToParcel(baseActivity, dest); 1803 ComponentName.writeToParcel(topActivity, dest); 1804 if (thumbnail != null) { 1805 dest.writeInt(1); 1806 thumbnail.writeToParcel(dest, 0); 1807 } else { 1808 dest.writeInt(0); 1809 } 1810 TextUtils.writeToParcel(description, dest, 1811 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1812 dest.writeInt(numActivities); 1813 dest.writeInt(numRunning); 1814 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1815 dest.writeInt(resizeMode); 1816 configuration.writeToParcel(dest, flags); 1817 } 1818 1819 public void readFromParcel(Parcel source) { 1820 id = source.readInt(); 1821 stackId = source.readInt(); 1822 baseActivity = ComponentName.readFromParcel(source); 1823 topActivity = ComponentName.readFromParcel(source); 1824 if (source.readInt() != 0) { 1825 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1826 } else { 1827 thumbnail = null; 1828 } 1829 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1830 numActivities = source.readInt(); 1831 numRunning = source.readInt(); 1832 supportsSplitScreenMultiWindow = source.readInt() != 0; 1833 resizeMode = source.readInt(); 1834 configuration.readFromParcel(source); 1835 } 1836 1837 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1838 public RunningTaskInfo createFromParcel(Parcel source) { 1839 return new RunningTaskInfo(source); 1840 } 1841 public RunningTaskInfo[] newArray(int size) { 1842 return new RunningTaskInfo[size]; 1843 } 1844 }; 1845 1846 private RunningTaskInfo(Parcel source) { 1847 readFromParcel(source); 1848 } 1849 } 1850 1851 /** 1852 * Get the list of tasks associated with the calling application. 1853 * 1854 * @return The list of tasks associated with the application making this call. 1855 * @throws SecurityException 1856 */ 1857 public List<ActivityManager.AppTask> getAppTasks() { 1858 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1859 List<IBinder> appTasks; 1860 try { 1861 appTasks = getService().getAppTasks(mContext.getPackageName()); 1862 } catch (RemoteException e) { 1863 throw e.rethrowFromSystemServer(); 1864 } 1865 int numAppTasks = appTasks.size(); 1866 for (int i = 0; i < numAppTasks; i++) { 1867 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1868 } 1869 return tasks; 1870 } 1871 1872 /** 1873 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1874 * with {@link #addAppTask}. 1875 */ 1876 public Size getAppTaskThumbnailSize() { 1877 synchronized (this) { 1878 ensureAppTaskThumbnailSizeLocked(); 1879 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1880 } 1881 } 1882 1883 private void ensureAppTaskThumbnailSizeLocked() { 1884 if (mAppTaskThumbnailSize == null) { 1885 try { 1886 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1887 } catch (RemoteException e) { 1888 throw e.rethrowFromSystemServer(); 1889 } 1890 } 1891 } 1892 1893 /** 1894 * Add a new {@link AppTask} for the calling application. This will create a new 1895 * recents entry that is added to the <b>end</b> of all existing recents. 1896 * 1897 * @param activity The activity that is adding the entry. This is used to help determine 1898 * the context that the new recents entry will be in. 1899 * @param intent The Intent that describes the recents entry. This is the same Intent that 1900 * you would have used to launch the activity for it. In generally you will want to set 1901 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1902 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1903 * entry will exist without an activity, so it doesn't make sense to not retain it when 1904 * its activity disappears. The given Intent here also must have an explicit ComponentName 1905 * set on it. 1906 * @param description Optional additional description information. 1907 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1908 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1909 * recreated in your process, probably in a way you don't like, before the recents entry 1910 * is added. 1911 * 1912 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1913 * most likely cause of failure is that there is no more room for more tasks for your app. 1914 */ 1915 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1916 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1917 Point size; 1918 synchronized (this) { 1919 ensureAppTaskThumbnailSizeLocked(); 1920 size = mAppTaskThumbnailSize; 1921 } 1922 final int tw = thumbnail.getWidth(); 1923 final int th = thumbnail.getHeight(); 1924 if (tw != size.x || th != size.y) { 1925 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1926 1927 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1928 float scale; 1929 float dx = 0, dy = 0; 1930 if (tw * size.x > size.y * th) { 1931 scale = (float) size.x / (float) th; 1932 dx = (size.y - tw * scale) * 0.5f; 1933 } else { 1934 scale = (float) size.y / (float) tw; 1935 dy = (size.x - th * scale) * 0.5f; 1936 } 1937 Matrix matrix = new Matrix(); 1938 matrix.setScale(scale, scale); 1939 matrix.postTranslate((int) (dx + 0.5f), 0); 1940 1941 Canvas canvas = new Canvas(bm); 1942 canvas.drawBitmap(thumbnail, matrix, null); 1943 canvas.setBitmap(null); 1944 1945 thumbnail = bm; 1946 } 1947 if (description == null) { 1948 description = new TaskDescription(); 1949 } 1950 try { 1951 return getService().addAppTask(activity.getActivityToken(), 1952 intent, description, thumbnail); 1953 } catch (RemoteException e) { 1954 throw e.rethrowFromSystemServer(); 1955 } 1956 } 1957 1958 /** 1959 * Return a list of the tasks that are currently running, with 1960 * the most recent being first and older ones after in order. Note that 1961 * "running" does not mean any of the task's code is currently loaded or 1962 * activity -- the task may have been frozen by the system, so that it 1963 * can be restarted in its previous state when next brought to the 1964 * foreground. 1965 * 1966 * <p><b>Note: this method is only intended for debugging and presenting 1967 * task management user interfaces</b>. This should never be used for 1968 * core logic in an application, such as deciding between different 1969 * behaviors based on the information found here. Such uses are 1970 * <em>not</em> supported, and will likely break in the future. For 1971 * example, if multiple applications can be actively running at the 1972 * same time, assumptions made about the meaning of the data here for 1973 * purposes of control flow will be incorrect.</p> 1974 * 1975 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1976 * is no longer available to third party 1977 * applications: the introduction of document-centric recents means 1978 * it can leak person information to the caller. For backwards compatibility, 1979 * it will still return a small subset of its data: at least the caller's 1980 * own tasks, and possibly some other tasks 1981 * such as home that are known to not be sensitive. 1982 * 1983 * @param maxNum The maximum number of entries to return in the list. The 1984 * actual number returned may be smaller, depending on how many tasks the 1985 * user has started. 1986 * 1987 * @return Returns a list of RunningTaskInfo records describing each of 1988 * the running tasks. 1989 */ 1990 @Deprecated 1991 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1992 throws SecurityException { 1993 try { 1994 return getService().getTasks(maxNum); 1995 } catch (RemoteException e) { 1996 throw e.rethrowFromSystemServer(); 1997 } 1998 } 1999 2000 /** 2001 * Sets the windowing mode for a specific task. Only works on tasks of type 2002 * {@link WindowConfiguration#ACTIVITY_TYPE_STANDARD} 2003 * @param taskId The id of the task to set the windowing mode for. 2004 * @param windowingMode The windowing mode to set for the task. 2005 * @param toTop If the task should be moved to the top once the windowing mode changes. 2006 * @hide 2007 */ 2008 @TestApi 2009 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2010 public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) 2011 throws SecurityException { 2012 try { 2013 getService().setTaskWindowingMode(taskId, windowingMode, toTop); 2014 } catch (RemoteException e) { 2015 throw e.rethrowFromSystemServer(); 2016 } 2017 } 2018 2019 /** 2020 * Moves the input task to the primary-split-screen stack. 2021 * @param taskId Id of task to move. 2022 * @param createMode The mode the primary split screen stack should be created in if it doesn't 2023 * exist already. See 2024 * {@link android.app.ActivityManager#SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT} 2025 * and 2026 * {@link android.app.ActivityManager 2027 * #SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT} 2028 * @param toTop If the task and stack should be moved to the top. 2029 * @param animate Whether we should play an animation for the moving the task 2030 * @param initialBounds If the primary stack gets created, it will use these bounds for the 2031 * docked stack. Pass {@code null} to use default bounds. 2032 * @param showRecents If the recents activity should be shown on the other side of the task 2033 * going into split-screen mode. 2034 * @hide 2035 */ 2036 @TestApi 2037 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2038 public void setTaskWindowingModeSplitScreenPrimary(int taskId, int createMode, boolean toTop, 2039 boolean animate, Rect initialBounds, boolean showRecents) throws SecurityException { 2040 try { 2041 getService().setTaskWindowingModeSplitScreenPrimary(taskId, createMode, toTop, animate, 2042 initialBounds, showRecents); 2043 } catch (RemoteException e) { 2044 throw e.rethrowFromSystemServer(); 2045 } 2046 } 2047 2048 /** 2049 * Resizes the input stack id to the given bounds. 2050 * @param stackId Id of the stack to resize. 2051 * @param bounds Bounds to resize the stack to or {@code null} for fullscreen. 2052 * @hide 2053 */ 2054 @TestApi 2055 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2056 public void resizeStack(int stackId, Rect bounds) throws SecurityException { 2057 try { 2058 getService().resizeStack(stackId, bounds, false /* allowResizeInDockedMode */, 2059 false /* preserveWindows */, false /* animate */, -1 /* animationDuration */); 2060 } catch (RemoteException e) { 2061 throw e.rethrowFromSystemServer(); 2062 } 2063 } 2064 2065 /** 2066 * Removes stacks in the windowing modes from the system if they are of activity type 2067 * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED 2068 * 2069 * @hide 2070 */ 2071 @TestApi 2072 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2073 public void removeStacksInWindowingModes(int[] windowingModes) throws SecurityException { 2074 try { 2075 getService().removeStacksInWindowingModes(windowingModes); 2076 } catch (RemoteException e) { 2077 throw e.rethrowFromSystemServer(); 2078 } 2079 } 2080 2081 /** 2082 * Removes stack of the activity types from the system. 2083 * 2084 * @hide 2085 */ 2086 @TestApi 2087 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2088 public void removeStacksWithActivityTypes(int[] activityTypes) throws SecurityException { 2089 try { 2090 getService().removeStacksWithActivityTypes(activityTypes); 2091 } catch (RemoteException e) { 2092 throw e.rethrowFromSystemServer(); 2093 } 2094 } 2095 2096 /** 2097 * Represents a task snapshot. 2098 * @hide 2099 */ 2100 public static class TaskSnapshot implements Parcelable { 2101 2102 private final GraphicBuffer mSnapshot; 2103 private final int mOrientation; 2104 private final Rect mContentInsets; 2105 // Whether this snapshot is a down-sampled version of the full resolution, used mainly for 2106 // low-ram devices 2107 private final boolean mReducedResolution; 2108 // Whether or not the snapshot is a real snapshot or an app-theme generated snapshot due to 2109 // the task having a secure window or having previews disabled 2110 private final boolean mIsRealSnapshot; 2111 private final int mWindowingMode; 2112 private final float mScale; 2113 private final int mSystemUiVisibility; 2114 private final boolean mIsTranslucent; 2115 2116 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2117 boolean reducedResolution, float scale, boolean isRealSnapshot, int windowingMode, 2118 int systemUiVisibility, boolean isTranslucent) { 2119 mSnapshot = snapshot; 2120 mOrientation = orientation; 2121 mContentInsets = new Rect(contentInsets); 2122 mReducedResolution = reducedResolution; 2123 mScale = scale; 2124 mIsRealSnapshot = isRealSnapshot; 2125 mWindowingMode = windowingMode; 2126 mSystemUiVisibility = systemUiVisibility; 2127 mIsTranslucent = isTranslucent; 2128 } 2129 2130 private TaskSnapshot(Parcel source) { 2131 mSnapshot = source.readParcelable(null /* classLoader */); 2132 mOrientation = source.readInt(); 2133 mContentInsets = source.readParcelable(null /* classLoader */); 2134 mReducedResolution = source.readBoolean(); 2135 mScale = source.readFloat(); 2136 mIsRealSnapshot = source.readBoolean(); 2137 mWindowingMode = source.readInt(); 2138 mSystemUiVisibility = source.readInt(); 2139 mIsTranslucent = source.readBoolean(); 2140 } 2141 2142 /** 2143 * @return The graphic buffer representing the screenshot. 2144 */ 2145 public GraphicBuffer getSnapshot() { 2146 return mSnapshot; 2147 } 2148 2149 /** 2150 * @return The screen orientation the screenshot was taken in. 2151 */ 2152 public int getOrientation() { 2153 return mOrientation; 2154 } 2155 2156 /** 2157 * @return The system/content insets on the snapshot. These can be clipped off in order to 2158 * remove any areas behind system bars in the snapshot. 2159 */ 2160 public Rect getContentInsets() { 2161 return mContentInsets; 2162 } 2163 2164 /** 2165 * @return Whether this snapshot is a down-sampled version of the full resolution. 2166 */ 2167 public boolean isReducedResolution() { 2168 return mReducedResolution; 2169 } 2170 2171 /** 2172 * @return Whether or not the snapshot is a real snapshot or an app-theme generated snapshot 2173 * due to the task having a secure window or having previews disabled. 2174 */ 2175 public boolean isRealSnapshot() { 2176 return mIsRealSnapshot; 2177 } 2178 2179 /** 2180 * @return Whether or not the snapshot is of a translucent app window. 2181 */ 2182 public boolean isTranslucent() { 2183 return mIsTranslucent; 2184 } 2185 2186 /** 2187 * @return The windowing mode of the task when this snapshot was taken. 2188 */ 2189 public int getWindowingMode() { 2190 return mWindowingMode; 2191 } 2192 2193 /** 2194 * @return The system ui visibility flags for the top most visible fullscreen window at the 2195 * time that the snapshot was taken. 2196 */ 2197 public int getSystemUiVisibility() { 2198 return mSystemUiVisibility; 2199 } 2200 2201 /** 2202 * @return The scale this snapshot was taken in. 2203 */ 2204 public float getScale() { 2205 return mScale; 2206 } 2207 2208 @Override 2209 public int describeContents() { 2210 return 0; 2211 } 2212 2213 @Override 2214 public void writeToParcel(Parcel dest, int flags) { 2215 dest.writeParcelable(mSnapshot, 0); 2216 dest.writeInt(mOrientation); 2217 dest.writeParcelable(mContentInsets, 0); 2218 dest.writeBoolean(mReducedResolution); 2219 dest.writeFloat(mScale); 2220 dest.writeBoolean(mIsRealSnapshot); 2221 dest.writeInt(mWindowingMode); 2222 dest.writeInt(mSystemUiVisibility); 2223 dest.writeBoolean(mIsTranslucent); 2224 } 2225 2226 @Override 2227 public String toString() { 2228 final int width = mSnapshot != null ? mSnapshot.getWidth() : 0; 2229 final int height = mSnapshot != null ? mSnapshot.getHeight() : 0; 2230 return "TaskSnapshot{mSnapshot=" + mSnapshot + " (" + width + "x" + height + ")" 2231 + " mOrientation=" + mOrientation 2232 + " mContentInsets=" + mContentInsets.toShortString() 2233 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale 2234 + " mIsRealSnapshot=" + mIsRealSnapshot + " mWindowingMode=" + mWindowingMode 2235 + " mSystemUiVisibility=" + mSystemUiVisibility 2236 + " mIsTranslucent=" + mIsTranslucent; 2237 } 2238 2239 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2240 public TaskSnapshot createFromParcel(Parcel source) { 2241 return new TaskSnapshot(source); 2242 } 2243 public TaskSnapshot[] newArray(int size) { 2244 return new TaskSnapshot[size]; 2245 } 2246 }; 2247 } 2248 2249 /** @hide */ 2250 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2251 MOVE_TASK_WITH_HOME, 2252 MOVE_TASK_NO_USER_ACTION, 2253 }) 2254 @Retention(RetentionPolicy.SOURCE) 2255 public @interface MoveTaskFlags {} 2256 2257 /** 2258 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2259 * activity along with the task, so it is positioned immediately behind 2260 * the task. 2261 */ 2262 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2263 2264 /** 2265 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2266 * user-instigated action, so the current activity will not receive a 2267 * hint that the user is leaving. 2268 */ 2269 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2270 2271 /** 2272 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2273 * with a null options argument. 2274 * 2275 * @param taskId The identifier of the task to be moved, as found in 2276 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2277 * @param flags Additional operational flags. 2278 */ 2279 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2280 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2281 moveTaskToFront(taskId, flags, null); 2282 } 2283 2284 /** 2285 * Ask that the task associated with a given task ID be moved to the 2286 * front of the stack, so it is now visible to the user. 2287 * 2288 * @param taskId The identifier of the task to be moved, as found in 2289 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2290 * @param flags Additional operational flags. 2291 * @param options Additional options for the operation, either null or 2292 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2293 * Context.startActivity(Intent, Bundle)}. 2294 */ 2295 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2296 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2297 try { 2298 getService().moveTaskToFront(taskId, flags, options); 2299 } catch (RemoteException e) { 2300 throw e.rethrowFromSystemServer(); 2301 } 2302 } 2303 2304 /** 2305 * Information you can retrieve about a particular Service that is 2306 * currently running in the system. 2307 */ 2308 public static class RunningServiceInfo implements Parcelable { 2309 /** 2310 * The service component. 2311 */ 2312 public ComponentName service; 2313 2314 /** 2315 * If non-zero, this is the process the service is running in. 2316 */ 2317 public int pid; 2318 2319 /** 2320 * The UID that owns this service. 2321 */ 2322 public int uid; 2323 2324 /** 2325 * The name of the process this service runs in. 2326 */ 2327 public String process; 2328 2329 /** 2330 * Set to true if the service has asked to run as a foreground process. 2331 */ 2332 public boolean foreground; 2333 2334 /** 2335 * The time when the service was first made active, either by someone 2336 * starting or binding to it. This 2337 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2338 */ 2339 public long activeSince; 2340 2341 /** 2342 * Set to true if this service has been explicitly started. 2343 */ 2344 public boolean started; 2345 2346 /** 2347 * Number of clients connected to the service. 2348 */ 2349 public int clientCount; 2350 2351 /** 2352 * Number of times the service's process has crashed while the service 2353 * is running. 2354 */ 2355 public int crashCount; 2356 2357 /** 2358 * The time when there was last activity in the service (either 2359 * explicit requests to start it or clients binding to it). This 2360 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2361 */ 2362 public long lastActivityTime; 2363 2364 /** 2365 * If non-zero, this service is not currently running, but scheduled to 2366 * restart at the given time. 2367 */ 2368 public long restarting; 2369 2370 /** 2371 * Bit for {@link #flags}: set if this service has been 2372 * explicitly started. 2373 */ 2374 public static final int FLAG_STARTED = 1<<0; 2375 2376 /** 2377 * Bit for {@link #flags}: set if the service has asked to 2378 * run as a foreground process. 2379 */ 2380 public static final int FLAG_FOREGROUND = 1<<1; 2381 2382 /** 2383 * Bit for {@link #flags}: set if the service is running in a 2384 * core system process. 2385 */ 2386 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2387 2388 /** 2389 * Bit for {@link #flags}: set if the service is running in a 2390 * persistent process. 2391 */ 2392 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2393 2394 /** 2395 * Running flags. 2396 */ 2397 public int flags; 2398 2399 /** 2400 * For special services that are bound to by system code, this is 2401 * the package that holds the binding. 2402 */ 2403 public String clientPackage; 2404 2405 /** 2406 * For special services that are bound to by system code, this is 2407 * a string resource providing a user-visible label for who the 2408 * client is. 2409 */ 2410 public int clientLabel; 2411 2412 public RunningServiceInfo() { 2413 } 2414 2415 public int describeContents() { 2416 return 0; 2417 } 2418 2419 public void writeToParcel(Parcel dest, int flags) { 2420 ComponentName.writeToParcel(service, dest); 2421 dest.writeInt(pid); 2422 dest.writeInt(uid); 2423 dest.writeString(process); 2424 dest.writeInt(foreground ? 1 : 0); 2425 dest.writeLong(activeSince); 2426 dest.writeInt(started ? 1 : 0); 2427 dest.writeInt(clientCount); 2428 dest.writeInt(crashCount); 2429 dest.writeLong(lastActivityTime); 2430 dest.writeLong(restarting); 2431 dest.writeInt(this.flags); 2432 dest.writeString(clientPackage); 2433 dest.writeInt(clientLabel); 2434 } 2435 2436 public void readFromParcel(Parcel source) { 2437 service = ComponentName.readFromParcel(source); 2438 pid = source.readInt(); 2439 uid = source.readInt(); 2440 process = source.readString(); 2441 foreground = source.readInt() != 0; 2442 activeSince = source.readLong(); 2443 started = source.readInt() != 0; 2444 clientCount = source.readInt(); 2445 crashCount = source.readInt(); 2446 lastActivityTime = source.readLong(); 2447 restarting = source.readLong(); 2448 flags = source.readInt(); 2449 clientPackage = source.readString(); 2450 clientLabel = source.readInt(); 2451 } 2452 2453 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2454 public RunningServiceInfo createFromParcel(Parcel source) { 2455 return new RunningServiceInfo(source); 2456 } 2457 public RunningServiceInfo[] newArray(int size) { 2458 return new RunningServiceInfo[size]; 2459 } 2460 }; 2461 2462 private RunningServiceInfo(Parcel source) { 2463 readFromParcel(source); 2464 } 2465 } 2466 2467 /** 2468 * Return a list of the services that are currently running. 2469 * 2470 * <p><b>Note: this method is only intended for debugging or implementing 2471 * service management type user interfaces.</b></p> 2472 * 2473 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2474 * is no longer available to third party applications. For backwards compatibility, 2475 * it will still return the caller's own services. 2476 * 2477 * @param maxNum The maximum number of entries to return in the list. The 2478 * actual number returned may be smaller, depending on how many services 2479 * are running. 2480 * 2481 * @return Returns a list of RunningServiceInfo records describing each of 2482 * the running tasks. 2483 */ 2484 @Deprecated 2485 public List<RunningServiceInfo> getRunningServices(int maxNum) 2486 throws SecurityException { 2487 try { 2488 return getService() 2489 .getServices(maxNum, 0); 2490 } catch (RemoteException e) { 2491 throw e.rethrowFromSystemServer(); 2492 } 2493 } 2494 2495 /** 2496 * Returns a PendingIntent you can start to show a control panel for the 2497 * given running service. If the service does not have a control panel, 2498 * null is returned. 2499 */ 2500 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2501 throws SecurityException { 2502 try { 2503 return getService() 2504 .getRunningServiceControlPanel(service); 2505 } catch (RemoteException e) { 2506 throw e.rethrowFromSystemServer(); 2507 } 2508 } 2509 2510 /** 2511 * Information you can retrieve about the available memory through 2512 * {@link ActivityManager#getMemoryInfo}. 2513 */ 2514 public static class MemoryInfo implements Parcelable { 2515 /** 2516 * The available memory on the system. This number should not 2517 * be considered absolute: due to the nature of the kernel, a significant 2518 * portion of this memory is actually in use and needed for the overall 2519 * system to run well. 2520 */ 2521 public long availMem; 2522 2523 /** 2524 * The total memory accessible by the kernel. This is basically the 2525 * RAM size of the device, not including below-kernel fixed allocations 2526 * like DMA buffers, RAM for the baseband CPU, etc. 2527 */ 2528 public long totalMem; 2529 2530 /** 2531 * The threshold of {@link #availMem} at which we consider memory to be 2532 * low and start killing background services and other non-extraneous 2533 * processes. 2534 */ 2535 public long threshold; 2536 2537 /** 2538 * Set to true if the system considers itself to currently be in a low 2539 * memory situation. 2540 */ 2541 public boolean lowMemory; 2542 2543 /** @hide */ 2544 public long hiddenAppThreshold; 2545 /** @hide */ 2546 public long secondaryServerThreshold; 2547 /** @hide */ 2548 public long visibleAppThreshold; 2549 /** @hide */ 2550 public long foregroundAppThreshold; 2551 2552 public MemoryInfo() { 2553 } 2554 2555 public int describeContents() { 2556 return 0; 2557 } 2558 2559 public void writeToParcel(Parcel dest, int flags) { 2560 dest.writeLong(availMem); 2561 dest.writeLong(totalMem); 2562 dest.writeLong(threshold); 2563 dest.writeInt(lowMemory ? 1 : 0); 2564 dest.writeLong(hiddenAppThreshold); 2565 dest.writeLong(secondaryServerThreshold); 2566 dest.writeLong(visibleAppThreshold); 2567 dest.writeLong(foregroundAppThreshold); 2568 } 2569 2570 public void readFromParcel(Parcel source) { 2571 availMem = source.readLong(); 2572 totalMem = source.readLong(); 2573 threshold = source.readLong(); 2574 lowMemory = source.readInt() != 0; 2575 hiddenAppThreshold = source.readLong(); 2576 secondaryServerThreshold = source.readLong(); 2577 visibleAppThreshold = source.readLong(); 2578 foregroundAppThreshold = source.readLong(); 2579 } 2580 2581 public static final Creator<MemoryInfo> CREATOR 2582 = new Creator<MemoryInfo>() { 2583 public MemoryInfo createFromParcel(Parcel source) { 2584 return new MemoryInfo(source); 2585 } 2586 public MemoryInfo[] newArray(int size) { 2587 return new MemoryInfo[size]; 2588 } 2589 }; 2590 2591 private MemoryInfo(Parcel source) { 2592 readFromParcel(source); 2593 } 2594 } 2595 2596 /** 2597 * Return general information about the memory state of the system. This 2598 * can be used to help decide how to manage your own memory, though note 2599 * that polling is not recommended and 2600 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2601 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2602 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2603 * level of your process as needed, which gives a better hint for how to 2604 * manage its memory. 2605 */ 2606 public void getMemoryInfo(MemoryInfo outInfo) { 2607 try { 2608 getService().getMemoryInfo(outInfo); 2609 } catch (RemoteException e) { 2610 throw e.rethrowFromSystemServer(); 2611 } 2612 } 2613 2614 /** 2615 * Information you can retrieve about an ActivityStack in the system. 2616 * @hide 2617 */ 2618 public static class StackInfo implements Parcelable { 2619 public int stackId; 2620 public Rect bounds = new Rect(); 2621 public int[] taskIds; 2622 public String[] taskNames; 2623 public Rect[] taskBounds; 2624 public int[] taskUserIds; 2625 public ComponentName topActivity; 2626 public int displayId; 2627 public int userId; 2628 public boolean visible; 2629 // Index of the stack in the display's stack list, can be used for comparison of stack order 2630 public int position; 2631 /** 2632 * The full configuration the stack is currently running in. 2633 * @hide 2634 */ 2635 final public Configuration configuration = new Configuration(); 2636 2637 @Override 2638 public int describeContents() { 2639 return 0; 2640 } 2641 2642 @Override 2643 public void writeToParcel(Parcel dest, int flags) { 2644 dest.writeInt(stackId); 2645 dest.writeInt(bounds.left); 2646 dest.writeInt(bounds.top); 2647 dest.writeInt(bounds.right); 2648 dest.writeInt(bounds.bottom); 2649 dest.writeIntArray(taskIds); 2650 dest.writeStringArray(taskNames); 2651 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2652 dest.writeInt(boundsCount); 2653 for (int i = 0; i < boundsCount; i++) { 2654 dest.writeInt(taskBounds[i].left); 2655 dest.writeInt(taskBounds[i].top); 2656 dest.writeInt(taskBounds[i].right); 2657 dest.writeInt(taskBounds[i].bottom); 2658 } 2659 dest.writeIntArray(taskUserIds); 2660 dest.writeInt(displayId); 2661 dest.writeInt(userId); 2662 dest.writeInt(visible ? 1 : 0); 2663 dest.writeInt(position); 2664 if (topActivity != null) { 2665 dest.writeInt(1); 2666 topActivity.writeToParcel(dest, 0); 2667 } else { 2668 dest.writeInt(0); 2669 } 2670 configuration.writeToParcel(dest, flags); 2671 } 2672 2673 public void readFromParcel(Parcel source) { 2674 stackId = source.readInt(); 2675 bounds = new Rect( 2676 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2677 taskIds = source.createIntArray(); 2678 taskNames = source.createStringArray(); 2679 final int boundsCount = source.readInt(); 2680 if (boundsCount > 0) { 2681 taskBounds = new Rect[boundsCount]; 2682 for (int i = 0; i < boundsCount; i++) { 2683 taskBounds[i] = new Rect(); 2684 taskBounds[i].set( 2685 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2686 } 2687 } else { 2688 taskBounds = null; 2689 } 2690 taskUserIds = source.createIntArray(); 2691 displayId = source.readInt(); 2692 userId = source.readInt(); 2693 visible = source.readInt() > 0; 2694 position = source.readInt(); 2695 if (source.readInt() > 0) { 2696 topActivity = ComponentName.readFromParcel(source); 2697 } 2698 configuration.readFromParcel(source); 2699 } 2700 2701 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2702 @Override 2703 public StackInfo createFromParcel(Parcel source) { 2704 return new StackInfo(source); 2705 } 2706 @Override 2707 public StackInfo[] newArray(int size) { 2708 return new StackInfo[size]; 2709 } 2710 }; 2711 2712 public StackInfo() { 2713 } 2714 2715 private StackInfo(Parcel source) { 2716 readFromParcel(source); 2717 } 2718 2719 public String toString(String prefix) { 2720 StringBuilder sb = new StringBuilder(256); 2721 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2722 sb.append(" bounds="); sb.append(bounds.toShortString()); 2723 sb.append(" displayId="); sb.append(displayId); 2724 sb.append(" userId="); sb.append(userId); 2725 sb.append("\n"); 2726 sb.append(" configuration="); sb.append(configuration); 2727 sb.append("\n"); 2728 prefix = prefix + " "; 2729 for (int i = 0; i < taskIds.length; ++i) { 2730 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2731 sb.append(": "); sb.append(taskNames[i]); 2732 if (taskBounds != null) { 2733 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2734 } 2735 sb.append(" userId=").append(taskUserIds[i]); 2736 sb.append(" visible=").append(visible); 2737 if (topActivity != null) { 2738 sb.append(" topActivity=").append(topActivity); 2739 } 2740 sb.append("\n"); 2741 } 2742 return sb.toString(); 2743 } 2744 2745 @Override 2746 public String toString() { 2747 return toString(""); 2748 } 2749 } 2750 2751 /** 2752 * @hide 2753 */ 2754 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2755 Manifest.permission.ACCESS_INSTANT_APPS}) 2756 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2757 try { 2758 return getService().clearApplicationUserData(packageName, false, 2759 observer, mContext.getUserId()); 2760 } catch (RemoteException e) { 2761 throw e.rethrowFromSystemServer(); 2762 } 2763 } 2764 2765 /** 2766 * Permits an application to erase its own data from disk. This is equivalent to 2767 * the user choosing to clear the app's data from within the device settings UI. It 2768 * erases all dynamic data associated with the app -- its private data and data in its 2769 * private area on external storage -- but does not remove the installed application 2770 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2771 * clears all notifications and removes all Uri grants related to this application. 2772 * 2773 * @return {@code true} if the application successfully requested that the application's 2774 * data be erased; {@code false} otherwise. 2775 */ 2776 public boolean clearApplicationUserData() { 2777 return clearApplicationUserData(mContext.getPackageName(), null); 2778 } 2779 2780 2781 /** 2782 * Permits an application to get the persistent URI permissions granted to another. 2783 * 2784 * <p>Typically called by Settings or DocumentsUI, requires 2785 * {@code GET_APP_GRANTED_URI_PERMISSIONS}. 2786 * 2787 * @param packageName application to look for the granted permissions, or {@code null} to get 2788 * granted permissions for all applications 2789 * @return list of granted URI permissions 2790 * 2791 * @hide 2792 */ 2793 public ParceledListSlice<GrantedUriPermission> getGrantedUriPermissions( 2794 @Nullable String packageName) { 2795 try { 2796 @SuppressWarnings("unchecked") 2797 final ParceledListSlice<GrantedUriPermission> castedList = getService() 2798 .getGrantedUriPermissions(packageName, mContext.getUserId()); 2799 return castedList; 2800 } catch (RemoteException e) { 2801 throw e.rethrowFromSystemServer(); 2802 } 2803 } 2804 2805 /** 2806 * Permits an application to clear the persistent URI permissions granted to another. 2807 * 2808 * <p>Typically called by Settings, requires {@code CLEAR_APP_GRANTED_URI_PERMISSIONS}. 2809 * 2810 * @param packageName application to clear its granted permissions 2811 * 2812 * @hide 2813 */ 2814 public void clearGrantedUriPermissions(String packageName) { 2815 try { 2816 getService().clearGrantedUriPermissions(packageName, 2817 mContext.getUserId()); 2818 } catch (RemoteException e) { 2819 throw e.rethrowFromSystemServer(); 2820 } 2821 } 2822 2823 /** 2824 * Information you can retrieve about any processes that are in an error condition. 2825 */ 2826 public static class ProcessErrorStateInfo implements Parcelable { 2827 /** 2828 * Condition codes 2829 */ 2830 public static final int NO_ERROR = 0; 2831 public static final int CRASHED = 1; 2832 public static final int NOT_RESPONDING = 2; 2833 2834 /** 2835 * The condition that the process is in. 2836 */ 2837 public int condition; 2838 2839 /** 2840 * The process name in which the crash or error occurred. 2841 */ 2842 public String processName; 2843 2844 /** 2845 * The pid of this process; 0 if none 2846 */ 2847 public int pid; 2848 2849 /** 2850 * The kernel user-ID that has been assigned to this process; 2851 * currently this is not a unique ID (multiple applications can have 2852 * the same uid). 2853 */ 2854 public int uid; 2855 2856 /** 2857 * The activity name associated with the error, if known. May be null. 2858 */ 2859 public String tag; 2860 2861 /** 2862 * A short message describing the error condition. 2863 */ 2864 public String shortMsg; 2865 2866 /** 2867 * A long message describing the error condition. 2868 */ 2869 public String longMsg; 2870 2871 /** 2872 * The stack trace where the error originated. May be null. 2873 */ 2874 public String stackTrace; 2875 2876 /** 2877 * to be deprecated: This value will always be null. 2878 */ 2879 public byte[] crashData = null; 2880 2881 public ProcessErrorStateInfo() { 2882 } 2883 2884 @Override 2885 public int describeContents() { 2886 return 0; 2887 } 2888 2889 @Override 2890 public void writeToParcel(Parcel dest, int flags) { 2891 dest.writeInt(condition); 2892 dest.writeString(processName); 2893 dest.writeInt(pid); 2894 dest.writeInt(uid); 2895 dest.writeString(tag); 2896 dest.writeString(shortMsg); 2897 dest.writeString(longMsg); 2898 dest.writeString(stackTrace); 2899 } 2900 2901 public void readFromParcel(Parcel source) { 2902 condition = source.readInt(); 2903 processName = source.readString(); 2904 pid = source.readInt(); 2905 uid = source.readInt(); 2906 tag = source.readString(); 2907 shortMsg = source.readString(); 2908 longMsg = source.readString(); 2909 stackTrace = source.readString(); 2910 } 2911 2912 public static final Creator<ProcessErrorStateInfo> CREATOR = 2913 new Creator<ProcessErrorStateInfo>() { 2914 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2915 return new ProcessErrorStateInfo(source); 2916 } 2917 public ProcessErrorStateInfo[] newArray(int size) { 2918 return new ProcessErrorStateInfo[size]; 2919 } 2920 }; 2921 2922 private ProcessErrorStateInfo(Parcel source) { 2923 readFromParcel(source); 2924 } 2925 } 2926 2927 /** 2928 * Returns a list of any processes that are currently in an error condition. The result 2929 * will be null if all processes are running properly at this time. 2930 * 2931 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2932 * current error conditions (it will not return an empty list). This list ordering is not 2933 * specified. 2934 */ 2935 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2936 try { 2937 return getService().getProcessesInErrorState(); 2938 } catch (RemoteException e) { 2939 throw e.rethrowFromSystemServer(); 2940 } 2941 } 2942 2943 /** 2944 * Information you can retrieve about a running process. 2945 */ 2946 public static class RunningAppProcessInfo implements Parcelable { 2947 /** 2948 * The name of the process that this object is associated with 2949 */ 2950 public String processName; 2951 2952 /** 2953 * The pid of this process; 0 if none 2954 */ 2955 public int pid; 2956 2957 /** 2958 * The user id of this process. 2959 */ 2960 public int uid; 2961 2962 /** 2963 * All packages that have been loaded into the process. 2964 */ 2965 public String pkgList[]; 2966 2967 /** 2968 * Constant for {@link #flags}: this is an app that is unable to 2969 * correctly save its state when going to the background, 2970 * so it can not be killed while in the background. 2971 * @hide 2972 */ 2973 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2974 2975 /** 2976 * Constant for {@link #flags}: this process is associated with a 2977 * persistent system app. 2978 * @hide 2979 */ 2980 public static final int FLAG_PERSISTENT = 1<<1; 2981 2982 /** 2983 * Constant for {@link #flags}: this process is associated with a 2984 * persistent system app. 2985 * @hide 2986 */ 2987 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2988 2989 /** 2990 * Flags of information. May be any of 2991 * {@link #FLAG_CANT_SAVE_STATE}. 2992 * @hide 2993 */ 2994 public int flags; 2995 2996 /** 2997 * Last memory trim level reported to the process: corresponds to 2998 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2999 * ComponentCallbacks2.onTrimMemory(int)}. 3000 */ 3001 public int lastTrimLevel; 3002 3003 /** @hide */ 3004 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3005 IMPORTANCE_FOREGROUND, 3006 IMPORTANCE_FOREGROUND_SERVICE, 3007 IMPORTANCE_TOP_SLEEPING, 3008 IMPORTANCE_VISIBLE, 3009 IMPORTANCE_PERCEPTIBLE, 3010 IMPORTANCE_CANT_SAVE_STATE, 3011 IMPORTANCE_SERVICE, 3012 IMPORTANCE_CACHED, 3013 IMPORTANCE_GONE, 3014 }) 3015 @Retention(RetentionPolicy.SOURCE) 3016 public @interface Importance {} 3017 3018 /** 3019 * Constant for {@link #importance}: This process is running the 3020 * foreground UI; that is, it is the thing currently at the top of the screen 3021 * that the user is interacting with. 3022 */ 3023 public static final int IMPORTANCE_FOREGROUND = 100; 3024 3025 /** 3026 * Constant for {@link #importance}: This process is running a foreground 3027 * service, for example to perform music playback even while the user is 3028 * not immediately in the app. This generally indicates that the process 3029 * is doing something the user actively cares about. 3030 */ 3031 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3032 3033 /** 3034 * @deprecated Pre-{@link android.os.Build.VERSION_CODES#P} version of 3035 * {@link #IMPORTANCE_TOP_SLEEPING}. As of Android 3036 * {@link android.os.Build.VERSION_CODES#P}, this is considered much less 3037 * important since we want to reduce what apps can do when the screen is off. 3038 */ 3039 @Deprecated 3040 public static final int IMPORTANCE_TOP_SLEEPING_PRE_28 = 150; 3041 3042 /** 3043 * Constant for {@link #importance}: This process is running something 3044 * that is actively visible to the user, though not in the immediate 3045 * foreground. This may be running a window that is behind the current 3046 * foreground (so paused and with its state saved, not interacting with 3047 * the user, but visible to them to some degree); it may also be running 3048 * other services under the system's control that it inconsiders important. 3049 */ 3050 public static final int IMPORTANCE_VISIBLE = 200; 3051 3052 /** 3053 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3054 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3055 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3056 * 3057 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3058 * on Android versions below {@link Build.VERSION_CODES#O}. 3059 * 3060 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3061 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3062 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3063 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3064 */ 3065 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3066 3067 /** 3068 * Constant for {@link #importance}: This process is not something the user 3069 * is directly aware of, but is otherwise perceptible to them to some degree. 3070 */ 3071 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3072 3073 /** 3074 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3075 * this wrong value 3076 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3077 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3078 * 3079 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3080 * on Android versions below {@link Build.VERSION_CODES#O}. 3081 * 3082 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3083 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3084 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3085 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3086 * 3087 * @hide 3088 */ 3089 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3090 3091 /** 3092 * Constant for {@link #importance}: This process is contains services 3093 * that should remain running. These are background services apps have 3094 * started, not something the user is aware of, so they may be killed by 3095 * the system relatively freely (though it is generally desired that they 3096 * stay running as long as they want to). 3097 */ 3098 public static final int IMPORTANCE_SERVICE = 300; 3099 3100 /** 3101 * Constant for {@link #importance}: This process is running the foreground 3102 * UI, but the device is asleep so it is not visible to the user. Though the 3103 * system will try hard to keep its process from being killed, in all other 3104 * ways we consider it a kind of cached process, with the limitations that go 3105 * along with that state: network access, running background services, etc. 3106 */ 3107 public static final int IMPORTANCE_TOP_SLEEPING = 325; 3108 3109 /** 3110 * Constant for {@link #importance}: This process is running an 3111 * application that can not save its state, and thus can't be killed 3112 * while in the background. This will be used with apps that have 3113 * {@link android.R.attr#cantSaveState} set on their application tag. 3114 */ 3115 public static final int IMPORTANCE_CANT_SAVE_STATE = 350; 3116 3117 /** 3118 * Constant for {@link #importance}: This process process contains 3119 * cached code that is expendable, not actively running any app components 3120 * we care about. 3121 */ 3122 public static final int IMPORTANCE_CACHED = 400; 3123 3124 /** 3125 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3126 */ 3127 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3128 3129 /** 3130 * Constant for {@link #importance}: This process is empty of any 3131 * actively running code. 3132 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3133 */ 3134 @Deprecated 3135 public static final int IMPORTANCE_EMPTY = 500; 3136 3137 /** 3138 * Constant for {@link #importance}: This process does not exist. 3139 */ 3140 public static final int IMPORTANCE_GONE = 1000; 3141 3142 /** 3143 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3144 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3145 * @hide 3146 */ 3147 public static @Importance int procStateToImportance(int procState) { 3148 if (procState == PROCESS_STATE_NONEXISTENT) { 3149 return IMPORTANCE_GONE; 3150 } else if (procState >= PROCESS_STATE_HOME) { 3151 return IMPORTANCE_CACHED; 3152 } else if (procState == PROCESS_STATE_HEAVY_WEIGHT) { 3153 return IMPORTANCE_CANT_SAVE_STATE; 3154 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3155 return IMPORTANCE_TOP_SLEEPING; 3156 } else if (procState >= PROCESS_STATE_SERVICE) { 3157 return IMPORTANCE_SERVICE; 3158 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3159 return IMPORTANCE_PERCEPTIBLE; 3160 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3161 return IMPORTANCE_VISIBLE; 3162 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3163 return IMPORTANCE_FOREGROUND_SERVICE; 3164 } else { 3165 return IMPORTANCE_FOREGROUND; 3166 } 3167 } 3168 3169 /** 3170 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3171 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3172 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3173 * client's target SDK < {@link VERSION_CODES#O}. 3174 * @hide 3175 */ 3176 public static @Importance int procStateToImportanceForClient(int procState, 3177 Context clientContext) { 3178 return procStateToImportanceForTargetSdk(procState, 3179 clientContext.getApplicationInfo().targetSdkVersion); 3180 } 3181 3182 /** 3183 * See {@link #procStateToImportanceForClient}. 3184 * @hide 3185 */ 3186 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3187 int targetSdkVersion) { 3188 final int importance = procStateToImportance(procState); 3189 3190 // For pre O apps, convert to the old, wrong values. 3191 if (targetSdkVersion < VERSION_CODES.O) { 3192 switch (importance) { 3193 case IMPORTANCE_PERCEPTIBLE: 3194 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3195 case IMPORTANCE_TOP_SLEEPING: 3196 return IMPORTANCE_TOP_SLEEPING_PRE_28; 3197 case IMPORTANCE_CANT_SAVE_STATE: 3198 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3199 } 3200 } 3201 return importance; 3202 } 3203 3204 /** @hide */ 3205 public static int importanceToProcState(@Importance int importance) { 3206 if (importance == IMPORTANCE_GONE) { 3207 return PROCESS_STATE_NONEXISTENT; 3208 } else if (importance >= IMPORTANCE_CACHED) { 3209 return PROCESS_STATE_HOME; 3210 } else if (importance >= IMPORTANCE_CANT_SAVE_STATE) { 3211 return PROCESS_STATE_HEAVY_WEIGHT; 3212 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3213 return PROCESS_STATE_TOP_SLEEPING; 3214 } else if (importance >= IMPORTANCE_SERVICE) { 3215 return PROCESS_STATE_SERVICE; 3216 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3217 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3218 } else if (importance >= IMPORTANCE_VISIBLE) { 3219 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3220 } else if (importance >= IMPORTANCE_TOP_SLEEPING_PRE_28) { 3221 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3222 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3223 return PROCESS_STATE_FOREGROUND_SERVICE; 3224 } else { 3225 return PROCESS_STATE_TOP; 3226 } 3227 } 3228 3229 /** 3230 * The relative importance level that the system places on this process. 3231 * These constants are numbered so that "more important" values are 3232 * always smaller than "less important" values. 3233 */ 3234 public @Importance int importance; 3235 3236 /** 3237 * An additional ordering within a particular {@link #importance} 3238 * category, providing finer-grained information about the relative 3239 * utility of processes within a category. This number means nothing 3240 * except that a smaller values are more recently used (and thus 3241 * more important). Currently an LRU value is only maintained for 3242 * the {@link #IMPORTANCE_CACHED} category, though others may 3243 * be maintained in the future. 3244 */ 3245 public int lru; 3246 3247 /** 3248 * Constant for {@link #importanceReasonCode}: nothing special has 3249 * been specified for the reason for this level. 3250 */ 3251 public static final int REASON_UNKNOWN = 0; 3252 3253 /** 3254 * Constant for {@link #importanceReasonCode}: one of the application's 3255 * content providers is being used by another process. The pid of 3256 * the client process is in {@link #importanceReasonPid} and the 3257 * target provider in this process is in 3258 * {@link #importanceReasonComponent}. 3259 */ 3260 public static final int REASON_PROVIDER_IN_USE = 1; 3261 3262 /** 3263 * Constant for {@link #importanceReasonCode}: one of the application's 3264 * content providers is being used by another process. The pid of 3265 * the client process is in {@link #importanceReasonPid} and the 3266 * target provider in this process is in 3267 * {@link #importanceReasonComponent}. 3268 */ 3269 public static final int REASON_SERVICE_IN_USE = 2; 3270 3271 /** 3272 * The reason for {@link #importance}, if any. 3273 */ 3274 public int importanceReasonCode; 3275 3276 /** 3277 * For the specified values of {@link #importanceReasonCode}, this 3278 * is the process ID of the other process that is a client of this 3279 * process. This will be 0 if no other process is using this one. 3280 */ 3281 public int importanceReasonPid; 3282 3283 /** 3284 * For the specified values of {@link #importanceReasonCode}, this 3285 * is the name of the component that is being used in this process. 3286 */ 3287 public ComponentName importanceReasonComponent; 3288 3289 /** 3290 * When {@link #importanceReasonPid} is non-0, this is the importance 3291 * of the other pid. @hide 3292 */ 3293 public int importanceReasonImportance; 3294 3295 /** 3296 * Current process state, as per PROCESS_STATE_* constants. 3297 * @hide 3298 */ 3299 public int processState; 3300 3301 public RunningAppProcessInfo() { 3302 importance = IMPORTANCE_FOREGROUND; 3303 importanceReasonCode = REASON_UNKNOWN; 3304 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3305 } 3306 3307 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3308 processName = pProcessName; 3309 pid = pPid; 3310 pkgList = pArr; 3311 } 3312 3313 public int describeContents() { 3314 return 0; 3315 } 3316 3317 public void writeToParcel(Parcel dest, int flags) { 3318 dest.writeString(processName); 3319 dest.writeInt(pid); 3320 dest.writeInt(uid); 3321 dest.writeStringArray(pkgList); 3322 dest.writeInt(this.flags); 3323 dest.writeInt(lastTrimLevel); 3324 dest.writeInt(importance); 3325 dest.writeInt(lru); 3326 dest.writeInt(importanceReasonCode); 3327 dest.writeInt(importanceReasonPid); 3328 ComponentName.writeToParcel(importanceReasonComponent, dest); 3329 dest.writeInt(importanceReasonImportance); 3330 dest.writeInt(processState); 3331 } 3332 3333 public void readFromParcel(Parcel source) { 3334 processName = source.readString(); 3335 pid = source.readInt(); 3336 uid = source.readInt(); 3337 pkgList = source.readStringArray(); 3338 flags = source.readInt(); 3339 lastTrimLevel = source.readInt(); 3340 importance = source.readInt(); 3341 lru = source.readInt(); 3342 importanceReasonCode = source.readInt(); 3343 importanceReasonPid = source.readInt(); 3344 importanceReasonComponent = ComponentName.readFromParcel(source); 3345 importanceReasonImportance = source.readInt(); 3346 processState = source.readInt(); 3347 } 3348 3349 public static final Creator<RunningAppProcessInfo> CREATOR = 3350 new Creator<RunningAppProcessInfo>() { 3351 public RunningAppProcessInfo createFromParcel(Parcel source) { 3352 return new RunningAppProcessInfo(source); 3353 } 3354 public RunningAppProcessInfo[] newArray(int size) { 3355 return new RunningAppProcessInfo[size]; 3356 } 3357 }; 3358 3359 private RunningAppProcessInfo(Parcel source) { 3360 readFromParcel(source); 3361 } 3362 } 3363 3364 /** 3365 * Returns a list of application processes installed on external media 3366 * that are running on the device. 3367 * 3368 * <p><b>Note: this method is only intended for debugging or building 3369 * a user-facing process management UI.</b></p> 3370 * 3371 * @return Returns a list of ApplicationInfo records, or null if none 3372 * This list ordering is not specified. 3373 * @hide 3374 */ 3375 public List<ApplicationInfo> getRunningExternalApplications() { 3376 try { 3377 return getService().getRunningExternalApplications(); 3378 } catch (RemoteException e) { 3379 throw e.rethrowFromSystemServer(); 3380 } 3381 } 3382 3383 /** 3384 * Query whether the user has enabled background restrictions for this app. 3385 * 3386 * <p> The user may chose to do this, if they see that an app is consuming an unreasonable 3387 * amount of battery while in the background. </p> 3388 * 3389 * <p> If true, any work that the app tries to do will be aggressively restricted while it is in 3390 * the background. At a minimum, jobs and alarms will not execute and foreground services 3391 * cannot be started unless an app activity is in the foreground. </p> 3392 * 3393 * <p><b> Note that these restrictions stay in effect even when the device is charging.</b></p> 3394 * 3395 * @return true if user has enforced background restrictions for this app, false otherwise. 3396 */ 3397 public boolean isBackgroundRestricted() { 3398 try { 3399 return getService().isBackgroundRestricted(mContext.getOpPackageName()); 3400 } catch (RemoteException e) { 3401 throw e.rethrowFromSystemServer(); 3402 } 3403 } 3404 3405 /** 3406 * Sets the memory trim mode for a process and schedules a memory trim operation. 3407 * 3408 * <p><b>Note: this method is only intended for testing framework.</b></p> 3409 * 3410 * @return Returns true if successful. 3411 * @hide 3412 */ 3413 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3414 try { 3415 return getService().setProcessMemoryTrimLevel(process, userId, 3416 level); 3417 } catch (RemoteException e) { 3418 throw e.rethrowFromSystemServer(); 3419 } 3420 } 3421 3422 /** 3423 * Returns a list of application processes that are running on the device. 3424 * 3425 * <p><b>Note: this method is only intended for debugging or building 3426 * a user-facing process management UI.</b></p> 3427 * 3428 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3429 * running processes (it will not return an empty list). This list ordering is not 3430 * specified. 3431 */ 3432 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3433 try { 3434 return getService().getRunningAppProcesses(); 3435 } catch (RemoteException e) { 3436 throw e.rethrowFromSystemServer(); 3437 } 3438 } 3439 3440 /** 3441 * Return the importance of a given package name, based on the processes that are 3442 * currently running. The return value is one of the importance constants defined 3443 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3444 * processes that this package has code running inside of. If there are no processes 3445 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3446 * @hide 3447 */ 3448 @SystemApi @TestApi 3449 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3450 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3451 try { 3452 int procState = getService().getPackageProcessState(packageName, 3453 mContext.getOpPackageName()); 3454 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3455 } catch (RemoteException e) { 3456 throw e.rethrowFromSystemServer(); 3457 } 3458 } 3459 3460 /** 3461 * Return the importance of a given uid, based on the processes that are 3462 * currently running. The return value is one of the importance constants defined 3463 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3464 * processes that this uid has running. If there are no processes 3465 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3466 * @hide 3467 */ 3468 @SystemApi @TestApi 3469 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3470 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3471 try { 3472 int procState = getService().getUidProcessState(uid, 3473 mContext.getOpPackageName()); 3474 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3475 } catch (RemoteException e) { 3476 throw e.rethrowFromSystemServer(); 3477 } 3478 } 3479 3480 /** 3481 * Callback to get reports about changes to the importance of a uid. Use with 3482 * {@link #addOnUidImportanceListener}. 3483 * @hide 3484 */ 3485 @SystemApi @TestApi 3486 public interface OnUidImportanceListener { 3487 /** 3488 * The importance if a given uid has changed. Will be one of the importance 3489 * values in {@link RunningAppProcessInfo}; 3490 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3491 * when the uid is no longer running at all. This callback will happen on a thread 3492 * from a thread pool, not the main UI thread. 3493 * @param uid The uid whose importance has changed. 3494 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3495 */ 3496 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3497 } 3498 3499 /** 3500 * Start monitoring changes to the imoportance of uids running in the system. 3501 * @param listener The listener callback that will receive change reports. 3502 * @param importanceCutpoint The level of importance in which the caller is interested 3503 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3504 * is used here, you will receive a call each time a uids importance transitions between 3505 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3506 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3507 * 3508 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3509 * permission to use this feature.</p> 3510 * 3511 * @throws IllegalArgumentException If the listener is already registered. 3512 * @throws SecurityException If the caller does not hold 3513 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3514 * @hide 3515 */ 3516 @SystemApi @TestApi 3517 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3518 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3519 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3520 synchronized (this) { 3521 if (mImportanceListeners.containsKey(listener)) { 3522 throw new IllegalArgumentException("Listener already registered: " + listener); 3523 } 3524 // TODO: implement the cut point in the system process to avoid IPCs. 3525 UidObserver observer = new UidObserver(listener, mContext); 3526 try { 3527 getService().registerUidObserver(observer, 3528 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3529 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3530 mContext.getOpPackageName()); 3531 } catch (RemoteException e) { 3532 throw e.rethrowFromSystemServer(); 3533 } 3534 mImportanceListeners.put(listener, observer); 3535 } 3536 } 3537 3538 /** 3539 * Remove an importance listener that was previously registered with 3540 * {@link #addOnUidImportanceListener}. 3541 * 3542 * @throws IllegalArgumentException If the listener is not registered. 3543 * @hide 3544 */ 3545 @SystemApi @TestApi 3546 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3547 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3548 synchronized (this) { 3549 UidObserver observer = mImportanceListeners.remove(listener); 3550 if (observer == null) { 3551 throw new IllegalArgumentException("Listener not registered: " + listener); 3552 } 3553 try { 3554 getService().unregisterUidObserver(observer); 3555 } catch (RemoteException e) { 3556 throw e.rethrowFromSystemServer(); 3557 } 3558 } 3559 } 3560 3561 /** 3562 * Return global memory state information for the calling process. This 3563 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3564 * only fields that will be filled in are 3565 * {@link RunningAppProcessInfo#pid}, 3566 * {@link RunningAppProcessInfo#uid}, 3567 * {@link RunningAppProcessInfo#lastTrimLevel}, 3568 * {@link RunningAppProcessInfo#importance}, 3569 * {@link RunningAppProcessInfo#lru}, and 3570 * {@link RunningAppProcessInfo#importanceReasonCode}. 3571 */ 3572 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3573 try { 3574 getService().getMyMemoryState(outState); 3575 } catch (RemoteException e) { 3576 throw e.rethrowFromSystemServer(); 3577 } 3578 } 3579 3580 /** 3581 * Return information about the memory usage of one or more processes. 3582 * 3583 * <p><b>Note: this method is only intended for debugging or building 3584 * a user-facing process management UI.</b></p> 3585 * 3586 * @param pids The pids of the processes whose memory usage is to be 3587 * retrieved. 3588 * @return Returns an array of memory information, one for each 3589 * requested pid. 3590 */ 3591 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3592 try { 3593 return getService().getProcessMemoryInfo(pids); 3594 } catch (RemoteException e) { 3595 throw e.rethrowFromSystemServer(); 3596 } 3597 } 3598 3599 /** 3600 * @deprecated This is now just a wrapper for 3601 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3602 * is no longer available to applications because it allows them to 3603 * break other applications by removing their alarms, stopping their 3604 * services, etc. 3605 */ 3606 @Deprecated 3607 public void restartPackage(String packageName) { 3608 killBackgroundProcesses(packageName); 3609 } 3610 3611 /** 3612 * Have the system immediately kill all background processes associated 3613 * with the given package. This is the same as the kernel killing those 3614 * processes to reclaim memory; the system will take care of restarting 3615 * these processes in the future as needed. 3616 * 3617 * @param packageName The name of the package whose processes are to 3618 * be killed. 3619 */ 3620 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3621 public void killBackgroundProcesses(String packageName) { 3622 try { 3623 getService().killBackgroundProcesses(packageName, 3624 mContext.getUserId()); 3625 } catch (RemoteException e) { 3626 throw e.rethrowFromSystemServer(); 3627 } 3628 } 3629 3630 /** 3631 * Kills the specified UID. 3632 * @param uid The UID to kill. 3633 * @param reason The reason for the kill. 3634 * 3635 * @hide 3636 */ 3637 @SystemApi 3638 @RequiresPermission(Manifest.permission.KILL_UID) 3639 public void killUid(int uid, String reason) { 3640 try { 3641 getService().killUid(UserHandle.getAppId(uid), 3642 UserHandle.getUserId(uid), reason); 3643 } catch (RemoteException e) { 3644 throw e.rethrowFromSystemServer(); 3645 } 3646 } 3647 3648 /** 3649 * Have the system perform a force stop of everything associated with 3650 * the given application package. All processes that share its uid 3651 * will be killed, all services it has running stopped, all activities 3652 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3653 * broadcast will be sent, so that any of its registered alarms can 3654 * be stopped, notifications removed, etc. 3655 * 3656 * <p>You must hold the permission 3657 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3658 * call this method. 3659 * 3660 * @param packageName The name of the package to be stopped. 3661 * @param userId The user for which the running package is to be stopped. 3662 * 3663 * @hide This is not available to third party applications due to 3664 * it allowing them to break other applications by stopping their 3665 * services, removing their alarms, etc. 3666 */ 3667 public void forceStopPackageAsUser(String packageName, int userId) { 3668 try { 3669 getService().forceStopPackage(packageName, userId); 3670 } catch (RemoteException e) { 3671 throw e.rethrowFromSystemServer(); 3672 } 3673 } 3674 3675 /** 3676 * @see #forceStopPackageAsUser(String, int) 3677 * @hide 3678 */ 3679 @SystemApi 3680 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3681 public void forceStopPackage(String packageName) { 3682 forceStopPackageAsUser(packageName, mContext.getUserId()); 3683 } 3684 3685 /** 3686 * Get the device configuration attributes. 3687 */ 3688 public ConfigurationInfo getDeviceConfigurationInfo() { 3689 try { 3690 return getService().getDeviceConfigurationInfo(); 3691 } catch (RemoteException e) { 3692 throw e.rethrowFromSystemServer(); 3693 } 3694 } 3695 3696 /** 3697 * Get the preferred density of icons for the launcher. This is used when 3698 * custom drawables are created (e.g., for shortcuts). 3699 * 3700 * @return density in terms of DPI 3701 */ 3702 public int getLauncherLargeIconDensity() { 3703 final Resources res = mContext.getResources(); 3704 final int density = res.getDisplayMetrics().densityDpi; 3705 final int sw = res.getConfiguration().smallestScreenWidthDp; 3706 3707 if (sw < 600) { 3708 // Smaller than approx 7" tablets, use the regular icon size. 3709 return density; 3710 } 3711 3712 switch (density) { 3713 case DisplayMetrics.DENSITY_LOW: 3714 return DisplayMetrics.DENSITY_MEDIUM; 3715 case DisplayMetrics.DENSITY_MEDIUM: 3716 return DisplayMetrics.DENSITY_HIGH; 3717 case DisplayMetrics.DENSITY_TV: 3718 return DisplayMetrics.DENSITY_XHIGH; 3719 case DisplayMetrics.DENSITY_HIGH: 3720 return DisplayMetrics.DENSITY_XHIGH; 3721 case DisplayMetrics.DENSITY_XHIGH: 3722 return DisplayMetrics.DENSITY_XXHIGH; 3723 case DisplayMetrics.DENSITY_XXHIGH: 3724 return DisplayMetrics.DENSITY_XHIGH * 2; 3725 default: 3726 // The density is some abnormal value. Return some other 3727 // abnormal value that is a reasonable scaling of it. 3728 return (int)((density*1.5f)+.5f); 3729 } 3730 } 3731 3732 /** 3733 * Get the preferred launcher icon size. This is used when custom drawables 3734 * are created (e.g., for shortcuts). 3735 * 3736 * @return dimensions of square icons in terms of pixels 3737 */ 3738 public int getLauncherLargeIconSize() { 3739 return getLauncherLargeIconSizeInner(mContext); 3740 } 3741 3742 static int getLauncherLargeIconSizeInner(Context context) { 3743 final Resources res = context.getResources(); 3744 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3745 final int sw = res.getConfiguration().smallestScreenWidthDp; 3746 3747 if (sw < 600) { 3748 // Smaller than approx 7" tablets, use the regular icon size. 3749 return size; 3750 } 3751 3752 final int density = res.getDisplayMetrics().densityDpi; 3753 3754 switch (density) { 3755 case DisplayMetrics.DENSITY_LOW: 3756 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3757 case DisplayMetrics.DENSITY_MEDIUM: 3758 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3759 case DisplayMetrics.DENSITY_TV: 3760 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3761 case DisplayMetrics.DENSITY_HIGH: 3762 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3763 case DisplayMetrics.DENSITY_XHIGH: 3764 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3765 case DisplayMetrics.DENSITY_XXHIGH: 3766 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3767 default: 3768 // The density is some abnormal value. Return some other 3769 // abnormal value that is a reasonable scaling of it. 3770 return (int)((size*1.5f) + .5f); 3771 } 3772 } 3773 3774 /** 3775 * Returns "true" if the user interface is currently being messed with 3776 * by a monkey. 3777 */ 3778 public static boolean isUserAMonkey() { 3779 try { 3780 return getService().isUserAMonkey(); 3781 } catch (RemoteException e) { 3782 throw e.rethrowFromSystemServer(); 3783 } 3784 } 3785 3786 /** 3787 * Returns "true" if device is running in a test harness. 3788 */ 3789 public static boolean isRunningInTestHarness() { 3790 return SystemProperties.getBoolean("ro.test_harness", false); 3791 } 3792 3793 /** 3794 * Unsupported compiled sdk warning should always be shown for the intput activity 3795 * even in cases where the system would normally not show the warning. E.g. when running in a 3796 * test harness. 3797 * 3798 * @param activity The component name of the activity to always show the warning for. 3799 * 3800 * @hide 3801 */ 3802 @TestApi 3803 public void alwaysShowUnsupportedCompileSdkWarning(ComponentName activity) { 3804 try { 3805 getService().alwaysShowUnsupportedCompileSdkWarning(activity); 3806 } catch (RemoteException e) { 3807 throw e.rethrowFromSystemServer(); 3808 } 3809 } 3810 3811 /** 3812 * Returns the launch count of each installed package. 3813 * 3814 * @hide 3815 */ 3816 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3817 try { 3818 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3819 ServiceManager.getService("usagestats")); 3820 if (usageStatsService == null) { 3821 return new HashMap<String, Integer>(); 3822 } 3823 3824 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3825 ActivityThread.currentPackageName()); 3826 if (allPkgUsageStats == null) { 3827 return new HashMap<String, Integer>(); 3828 } 3829 3830 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3831 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3832 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3833 } 3834 3835 return launchCounts; 3836 } catch (RemoteException e) { 3837 Log.w(TAG, "Could not query launch counts", e); 3838 return new HashMap<String, Integer>(); 3839 } 3840 }*/ 3841 3842 /** @hide */ 3843 public static int checkComponentPermission(String permission, int uid, 3844 int owningUid, boolean exported) { 3845 // Root, system server get to do everything. 3846 final int appId = UserHandle.getAppId(uid); 3847 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3848 return PackageManager.PERMISSION_GRANTED; 3849 } 3850 // Isolated processes don't get any permissions. 3851 if (UserHandle.isIsolated(uid)) { 3852 return PackageManager.PERMISSION_DENIED; 3853 } 3854 // If there is a uid that owns whatever is being accessed, it has 3855 // blanket access to it regardless of the permissions it requires. 3856 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3857 return PackageManager.PERMISSION_GRANTED; 3858 } 3859 // If the target is not exported, then nobody else can get to it. 3860 if (!exported) { 3861 /* 3862 RuntimeException here = new RuntimeException("here"); 3863 here.fillInStackTrace(); 3864 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3865 here); 3866 */ 3867 return PackageManager.PERMISSION_DENIED; 3868 } 3869 if (permission == null) { 3870 return PackageManager.PERMISSION_GRANTED; 3871 } 3872 try { 3873 return AppGlobals.getPackageManager() 3874 .checkUidPermission(permission, uid); 3875 } catch (RemoteException e) { 3876 throw e.rethrowFromSystemServer(); 3877 } 3878 } 3879 3880 /** @hide */ 3881 public static int checkUidPermission(String permission, int uid) { 3882 try { 3883 return AppGlobals.getPackageManager() 3884 .checkUidPermission(permission, uid); 3885 } catch (RemoteException e) { 3886 throw e.rethrowFromSystemServer(); 3887 } 3888 } 3889 3890 /** 3891 * @hide 3892 * Helper for dealing with incoming user arguments to system service calls. 3893 * Takes care of checking permissions and converting USER_CURRENT to the 3894 * actual current user. 3895 * 3896 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3897 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3898 * @param userId The user id argument supplied by the caller -- this is the user 3899 * they want to run as. 3900 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3901 * to get a USER_ALL returned and deal with it correctly. If false, 3902 * an exception will be thrown if USER_ALL is supplied. 3903 * @param requireFull If true, the caller must hold 3904 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3905 * different user than their current process; otherwise they must hold 3906 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3907 * @param name Optional textual name of the incoming call; only for generating error messages. 3908 * @param callerPackage Optional package name of caller; only for error messages. 3909 * 3910 * @return Returns the user ID that the call should run as. Will always be a concrete 3911 * user number, unless <var>allowAll</var> is true in which case it could also be 3912 * USER_ALL. 3913 */ 3914 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3915 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3916 if (UserHandle.getUserId(callingUid) == userId) { 3917 return userId; 3918 } 3919 try { 3920 return getService().handleIncomingUser(callingPid, 3921 callingUid, userId, allowAll, requireFull, name, callerPackage); 3922 } catch (RemoteException e) { 3923 throw e.rethrowFromSystemServer(); 3924 } 3925 } 3926 3927 /** 3928 * Gets the userId of the current foreground user. Requires system permissions. 3929 * @hide 3930 */ 3931 @SystemApi 3932 @RequiresPermission(anyOf = { 3933 "android.permission.INTERACT_ACROSS_USERS", 3934 "android.permission.INTERACT_ACROSS_USERS_FULL" 3935 }) 3936 public static int getCurrentUser() { 3937 UserInfo ui; 3938 try { 3939 ui = getService().getCurrentUser(); 3940 return ui != null ? ui.id : 0; 3941 } catch (RemoteException e) { 3942 throw e.rethrowFromSystemServer(); 3943 } 3944 } 3945 3946 /** 3947 * @param userid the user's id. Zero indicates the default user. 3948 * @hide 3949 */ 3950 public boolean switchUser(int userid) { 3951 try { 3952 return getService().switchUser(userid); 3953 } catch (RemoteException e) { 3954 throw e.rethrowFromSystemServer(); 3955 } 3956 } 3957 3958 /** 3959 * Logs out current current foreground user by switching to the system user and stopping the 3960 * user being switched from. 3961 * @hide 3962 */ 3963 public static void logoutCurrentUser() { 3964 int currentUser = ActivityManager.getCurrentUser(); 3965 if (currentUser != UserHandle.USER_SYSTEM) { 3966 try { 3967 getService().switchUser(UserHandle.USER_SYSTEM); 3968 getService().stopUser(currentUser, /* force= */ false, null); 3969 } catch (RemoteException e) { 3970 e.rethrowFromSystemServer(); 3971 } 3972 } 3973 } 3974 3975 /** {@hide} */ 3976 public static final int FLAG_OR_STOPPED = 1 << 0; 3977 /** {@hide} */ 3978 public static final int FLAG_AND_LOCKED = 1 << 1; 3979 /** {@hide} */ 3980 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3981 /** {@hide} */ 3982 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3983 3984 /** 3985 * Return whether the given user is actively running. This means that 3986 * the user is in the "started" state, not "stopped" -- it is currently 3987 * allowed to run code through scheduled alarms, receiving broadcasts, 3988 * etc. A started user may be either the current foreground user or a 3989 * background user; the result here does not distinguish between the two. 3990 * @param userId the user's id. Zero indicates the default user. 3991 * @hide 3992 */ 3993 public boolean isUserRunning(int userId) { 3994 try { 3995 return getService().isUserRunning(userId, 0); 3996 } catch (RemoteException e) { 3997 throw e.rethrowFromSystemServer(); 3998 } 3999 } 4000 4001 /** {@hide} */ 4002 public boolean isVrModePackageEnabled(ComponentName component) { 4003 try { 4004 return getService().isVrModePackageEnabled(component); 4005 } catch (RemoteException e) { 4006 throw e.rethrowFromSystemServer(); 4007 } 4008 } 4009 4010 /** 4011 * Perform a system dump of various state associated with the given application 4012 * package name. This call blocks while the dump is being performed, so should 4013 * not be done on a UI thread. The data will be written to the given file 4014 * descriptor as text. 4015 * @param fd The file descriptor that the dump should be written to. The file 4016 * descriptor is <em>not</em> closed by this function; the caller continues to 4017 * own it. 4018 * @param packageName The name of the package that is to be dumped. 4019 */ 4020 @RequiresPermission(Manifest.permission.DUMP) 4021 public void dumpPackageState(FileDescriptor fd, String packageName) { 4022 dumpPackageStateStatic(fd, packageName); 4023 } 4024 4025 /** 4026 * @hide 4027 */ 4028 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4029 FileOutputStream fout = new FileOutputStream(fd); 4030 PrintWriter pw = new FastPrintWriter(fout); 4031 dumpService(pw, fd, "package", new String[] { packageName }); 4032 pw.println(); 4033 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4034 "-a", "package", packageName }); 4035 pw.println(); 4036 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4037 pw.println(); 4038 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4039 pw.println(); 4040 dumpService(pw, fd, "usagestats", new String[] { packageName }); 4041 pw.println(); 4042 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4043 pw.flush(); 4044 } 4045 4046 /** 4047 * @hide 4048 */ 4049 public static boolean isSystemReady() { 4050 if (!sSystemReady) { 4051 if (ActivityThread.isSystem()) { 4052 sSystemReady = 4053 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4054 } else { 4055 // Since this is being called from outside system server, system should be 4056 // ready by now. 4057 sSystemReady = true; 4058 } 4059 } 4060 return sSystemReady; 4061 } 4062 4063 /** 4064 * @hide 4065 */ 4066 public static void broadcastStickyIntent(Intent intent, int userId) { 4067 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4068 } 4069 4070 /** 4071 * Convenience for sending a sticky broadcast. For internal use only. 4072 * 4073 * @hide 4074 */ 4075 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4076 try { 4077 getService().broadcastIntent( 4078 null, intent, null, null, Activity.RESULT_OK, null, null, 4079 null /*permission*/, appOp, null, false, true, userId); 4080 } catch (RemoteException ex) { 4081 } 4082 } 4083 4084 /** 4085 * @hide 4086 */ 4087 public static void noteWakeupAlarm(PendingIntent ps, WorkSource workSource, int sourceUid, 4088 String sourcePkg, String tag) { 4089 try { 4090 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, workSource, 4091 sourceUid, sourcePkg, tag); 4092 } catch (RemoteException ex) { 4093 } 4094 } 4095 4096 /** 4097 * @hide 4098 */ 4099 public static void noteAlarmStart(PendingIntent ps, WorkSource workSource, int sourceUid, 4100 String tag) { 4101 try { 4102 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, workSource, 4103 sourceUid, tag); 4104 } catch (RemoteException ex) { 4105 } 4106 } 4107 4108 4109 /** 4110 * @hide 4111 */ 4112 public static void noteAlarmFinish(PendingIntent ps, WorkSource workSource, int sourceUid, 4113 String tag) { 4114 try { 4115 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, workSource, 4116 sourceUid, tag); 4117 } catch (RemoteException ex) { 4118 } 4119 } 4120 4121 /** 4122 * @hide 4123 */ 4124 public static IActivityManager getService() { 4125 return IActivityManagerSingleton.get(); 4126 } 4127 4128 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4129 new Singleton<IActivityManager>() { 4130 @Override 4131 protected IActivityManager create() { 4132 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4133 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4134 return am; 4135 } 4136 }; 4137 4138 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4139 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4140 IBinder service = ServiceManager.checkService(name); 4141 if (service == null) { 4142 pw.println(" (Service not found)"); 4143 pw.flush(); 4144 return; 4145 } 4146 pw.flush(); 4147 if (service instanceof Binder) { 4148 // If this is a local object, it doesn't make sense to do an async dump with it, 4149 // just directly dump. 4150 try { 4151 service.dump(fd, args); 4152 } catch (Throwable e) { 4153 pw.println("Failure dumping service:"); 4154 e.printStackTrace(pw); 4155 pw.flush(); 4156 } 4157 } else { 4158 // Otherwise, it is remote, do the dump asynchronously to avoid blocking. 4159 TransferPipe tp = null; 4160 try { 4161 pw.flush(); 4162 tp = new TransferPipe(); 4163 tp.setBufferPrefix(" "); 4164 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4165 tp.go(fd, 10000); 4166 } catch (Throwable e) { 4167 if (tp != null) { 4168 tp.kill(); 4169 } 4170 pw.println("Failure dumping service:"); 4171 e.printStackTrace(pw); 4172 } 4173 } 4174 } 4175 4176 /** 4177 * Request that the system start watching for the calling process to exceed a pss 4178 * size as given here. Once called, the system will look for any occasions where it 4179 * sees the associated process with a larger pss size and, when this happens, automatically 4180 * pull a heap dump from it and allow the user to share the data. Note that this request 4181 * continues running even if the process is killed and restarted. To remove the watch, 4182 * use {@link #clearWatchHeapLimit()}. 4183 * 4184 * <p>This API only work if the calling process has been marked as 4185 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4186 * (userdebug or eng) build.</p> 4187 * 4188 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4189 * handle heap limit reports themselves.</p> 4190 * 4191 * @param pssSize The size in bytes to set the limit at. 4192 */ 4193 public void setWatchHeapLimit(long pssSize) { 4194 try { 4195 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4196 mContext.getPackageName()); 4197 } catch (RemoteException e) { 4198 throw e.rethrowFromSystemServer(); 4199 } 4200 } 4201 4202 /** 4203 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4204 * If your package has an activity handling this action, it will be launched with the 4205 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4206 * match the activty must support this action and a MIME type of "*/*". 4207 */ 4208 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4209 4210 /** 4211 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4212 */ 4213 public void clearWatchHeapLimit() { 4214 try { 4215 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4216 } catch (RemoteException e) { 4217 throw e.rethrowFromSystemServer(); 4218 } 4219 } 4220 4221 /** 4222 * Return whether currently in lock task mode. When in this mode 4223 * no new tasks can be created or switched to. 4224 * 4225 * @see Activity#startLockTask() 4226 * 4227 * @deprecated Use {@link #getLockTaskModeState} instead. 4228 */ 4229 @Deprecated 4230 public boolean isInLockTaskMode() { 4231 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4232 } 4233 4234 /** 4235 * Return the current state of task locking. The three possible outcomes 4236 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4237 * and {@link #LOCK_TASK_MODE_PINNED}. 4238 * 4239 * @see Activity#startLockTask() 4240 */ 4241 public int getLockTaskModeState() { 4242 try { 4243 return getService().getLockTaskModeState(); 4244 } catch (RemoteException e) { 4245 throw e.rethrowFromSystemServer(); 4246 } 4247 } 4248 4249 /** 4250 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4251 * thread can be a VR thread in a process at a time, and that thread may be subject to 4252 * restrictions on the amount of time it can run. 4253 * 4254 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4255 * method will return to normal operation, and calling this method will do nothing while 4256 * persistent VR mode is enabled. 4257 * 4258 * To reset the VR thread for an application, a tid of 0 can be passed. 4259 * 4260 * @see android.os.Process#myTid() 4261 * @param tid tid of the VR thread 4262 */ 4263 public static void setVrThread(int tid) { 4264 try { 4265 getService().setVrThread(tid); 4266 } catch (RemoteException e) { 4267 // pass 4268 } 4269 } 4270 4271 /** 4272 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4273 * beyond a single process. Only one thread can be a 4274 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4275 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4276 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4277 * persistent VR thread loses its new scheduling priority; this method must be called again to 4278 * set the persistent thread. 4279 * 4280 * To reset the persistent VR thread, a tid of 0 can be passed. 4281 * 4282 * @see android.os.Process#myTid() 4283 * @param tid tid of the VR thread 4284 * @hide 4285 */ 4286 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4287 public static void setPersistentVrThread(int tid) { 4288 try { 4289 getService().setPersistentVrThread(tid); 4290 } catch (RemoteException e) { 4291 // pass 4292 } 4293 } 4294 4295 /** 4296 * The AppTask allows you to manage your own application's tasks. 4297 * See {@link android.app.ActivityManager#getAppTasks()} 4298 */ 4299 public static class AppTask { 4300 private IAppTask mAppTaskImpl; 4301 4302 /** @hide */ 4303 public AppTask(IAppTask task) { 4304 mAppTaskImpl = task; 4305 } 4306 4307 /** 4308 * Finishes all activities in this task and removes it from the recent tasks list. 4309 */ 4310 public void finishAndRemoveTask() { 4311 try { 4312 mAppTaskImpl.finishAndRemoveTask(); 4313 } catch (RemoteException e) { 4314 throw e.rethrowFromSystemServer(); 4315 } 4316 } 4317 4318 /** 4319 * Get the RecentTaskInfo associated with this task. 4320 * 4321 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4322 */ 4323 public RecentTaskInfo getTaskInfo() { 4324 try { 4325 return mAppTaskImpl.getTaskInfo(); 4326 } catch (RemoteException e) { 4327 throw e.rethrowFromSystemServer(); 4328 } 4329 } 4330 4331 /** 4332 * Bring this task to the foreground. If it contains activities, they will be 4333 * brought to the foreground with it and their instances re-created if needed. 4334 * If it doesn't contain activities, the root activity of the task will be 4335 * re-launched. 4336 */ 4337 public void moveToFront() { 4338 try { 4339 mAppTaskImpl.moveToFront(); 4340 } catch (RemoteException e) { 4341 throw e.rethrowFromSystemServer(); 4342 } 4343 } 4344 4345 /** 4346 * Start an activity in this task. Brings the task to the foreground. If this task 4347 * is not currently active (that is, its id < 0), then a new activity for the given 4348 * Intent will be launched as the root of the task and the task brought to the 4349 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4350 * an activity to launch in a new task, then a new activity for the given Intent will 4351 * be launched on top of the task and the task brought to the foreground. If this 4352 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4353 * or would otherwise be launched in to a new task, then the activity not launched but 4354 * this task be brought to the foreground and a new intent delivered to the top 4355 * activity if appropriate. 4356 * 4357 * <p>In other words, you generally want to use an Intent here that does not specify 4358 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4359 * and let the system do the right thing.</p> 4360 * 4361 * @param intent The Intent describing the new activity to be launched on the task. 4362 * @param options Optional launch options. 4363 * 4364 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4365 */ 4366 public void startActivity(Context context, Intent intent, Bundle options) { 4367 ActivityThread thread = ActivityThread.currentActivityThread(); 4368 thread.getInstrumentation().execStartActivityFromAppTask(context, 4369 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4370 } 4371 4372 /** 4373 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4374 * Intent of this AppTask. 4375 * 4376 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4377 * be set; otherwise, it will be cleared. 4378 */ 4379 public void setExcludeFromRecents(boolean exclude) { 4380 try { 4381 mAppTaskImpl.setExcludeFromRecents(exclude); 4382 } catch (RemoteException e) { 4383 throw e.rethrowFromSystemServer(); 4384 } 4385 } 4386 } 4387} 4388