ActivityManager.java revision 02378b430717d55bb3115e366ce6a5a9359c0d07
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 (non-fullscreen or has 2181 * a non-opaque pixel format). 2182 */ 2183 public boolean isTranslucent() { 2184 return mIsTranslucent; 2185 } 2186 2187 /** 2188 * @return The windowing mode of the task when this snapshot was taken. 2189 */ 2190 public int getWindowingMode() { 2191 return mWindowingMode; 2192 } 2193 2194 /** 2195 * @return The system ui visibility flags for the top most visible fullscreen window at the 2196 * time that the snapshot was taken. 2197 */ 2198 public int getSystemUiVisibility() { 2199 return mSystemUiVisibility; 2200 } 2201 2202 /** 2203 * @return The scale this snapshot was taken in. 2204 */ 2205 public float getScale() { 2206 return mScale; 2207 } 2208 2209 @Override 2210 public int describeContents() { 2211 return 0; 2212 } 2213 2214 @Override 2215 public void writeToParcel(Parcel dest, int flags) { 2216 dest.writeParcelable(mSnapshot, 0); 2217 dest.writeInt(mOrientation); 2218 dest.writeParcelable(mContentInsets, 0); 2219 dest.writeBoolean(mReducedResolution); 2220 dest.writeFloat(mScale); 2221 dest.writeBoolean(mIsRealSnapshot); 2222 dest.writeInt(mWindowingMode); 2223 dest.writeInt(mSystemUiVisibility); 2224 dest.writeBoolean(mIsTranslucent); 2225 } 2226 2227 @Override 2228 public String toString() { 2229 final int width = mSnapshot != null ? mSnapshot.getWidth() : 0; 2230 final int height = mSnapshot != null ? mSnapshot.getHeight() : 0; 2231 return "TaskSnapshot{mSnapshot=" + mSnapshot + " (" + width + "x" + height + ")" 2232 + " mOrientation=" + mOrientation 2233 + " mContentInsets=" + mContentInsets.toShortString() 2234 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale 2235 + " mIsRealSnapshot=" + mIsRealSnapshot + " mWindowingMode=" + mWindowingMode 2236 + " mSystemUiVisibility=" + mSystemUiVisibility 2237 + " mIsTranslucent=" + mIsTranslucent; 2238 } 2239 2240 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2241 public TaskSnapshot createFromParcel(Parcel source) { 2242 return new TaskSnapshot(source); 2243 } 2244 public TaskSnapshot[] newArray(int size) { 2245 return new TaskSnapshot[size]; 2246 } 2247 }; 2248 } 2249 2250 /** @hide */ 2251 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2252 MOVE_TASK_WITH_HOME, 2253 MOVE_TASK_NO_USER_ACTION, 2254 }) 2255 @Retention(RetentionPolicy.SOURCE) 2256 public @interface MoveTaskFlags {} 2257 2258 /** 2259 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2260 * activity along with the task, so it is positioned immediately behind 2261 * the task. 2262 */ 2263 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2264 2265 /** 2266 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2267 * user-instigated action, so the current activity will not receive a 2268 * hint that the user is leaving. 2269 */ 2270 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2271 2272 /** 2273 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2274 * with a null options argument. 2275 * 2276 * @param taskId The identifier of the task to be moved, as found in 2277 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2278 * @param flags Additional operational flags. 2279 */ 2280 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2281 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2282 moveTaskToFront(taskId, flags, null); 2283 } 2284 2285 /** 2286 * Ask that the task associated with a given task ID be moved to the 2287 * front of the stack, so it is now visible to the user. 2288 * 2289 * @param taskId The identifier of the task to be moved, as found in 2290 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2291 * @param flags Additional operational flags. 2292 * @param options Additional options for the operation, either null or 2293 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2294 * Context.startActivity(Intent, Bundle)}. 2295 */ 2296 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2297 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2298 try { 2299 getService().moveTaskToFront(taskId, flags, options); 2300 } catch (RemoteException e) { 2301 throw e.rethrowFromSystemServer(); 2302 } 2303 } 2304 2305 /** 2306 * Information you can retrieve about a particular Service that is 2307 * currently running in the system. 2308 */ 2309 public static class RunningServiceInfo implements Parcelable { 2310 /** 2311 * The service component. 2312 */ 2313 public ComponentName service; 2314 2315 /** 2316 * If non-zero, this is the process the service is running in. 2317 */ 2318 public int pid; 2319 2320 /** 2321 * The UID that owns this service. 2322 */ 2323 public int uid; 2324 2325 /** 2326 * The name of the process this service runs in. 2327 */ 2328 public String process; 2329 2330 /** 2331 * Set to true if the service has asked to run as a foreground process. 2332 */ 2333 public boolean foreground; 2334 2335 /** 2336 * The time when the service was first made active, either by someone 2337 * starting or binding to it. This 2338 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2339 */ 2340 public long activeSince; 2341 2342 /** 2343 * Set to true if this service has been explicitly started. 2344 */ 2345 public boolean started; 2346 2347 /** 2348 * Number of clients connected to the service. 2349 */ 2350 public int clientCount; 2351 2352 /** 2353 * Number of times the service's process has crashed while the service 2354 * is running. 2355 */ 2356 public int crashCount; 2357 2358 /** 2359 * The time when there was last activity in the service (either 2360 * explicit requests to start it or clients binding to it). This 2361 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2362 */ 2363 public long lastActivityTime; 2364 2365 /** 2366 * If non-zero, this service is not currently running, but scheduled to 2367 * restart at the given time. 2368 */ 2369 public long restarting; 2370 2371 /** 2372 * Bit for {@link #flags}: set if this service has been 2373 * explicitly started. 2374 */ 2375 public static final int FLAG_STARTED = 1<<0; 2376 2377 /** 2378 * Bit for {@link #flags}: set if the service has asked to 2379 * run as a foreground process. 2380 */ 2381 public static final int FLAG_FOREGROUND = 1<<1; 2382 2383 /** 2384 * Bit for {@link #flags}: set if the service is running in a 2385 * core system process. 2386 */ 2387 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2388 2389 /** 2390 * Bit for {@link #flags}: set if the service is running in a 2391 * persistent process. 2392 */ 2393 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2394 2395 /** 2396 * Running flags. 2397 */ 2398 public int flags; 2399 2400 /** 2401 * For special services that are bound to by system code, this is 2402 * the package that holds the binding. 2403 */ 2404 public String clientPackage; 2405 2406 /** 2407 * For special services that are bound to by system code, this is 2408 * a string resource providing a user-visible label for who the 2409 * client is. 2410 */ 2411 public int clientLabel; 2412 2413 public RunningServiceInfo() { 2414 } 2415 2416 public int describeContents() { 2417 return 0; 2418 } 2419 2420 public void writeToParcel(Parcel dest, int flags) { 2421 ComponentName.writeToParcel(service, dest); 2422 dest.writeInt(pid); 2423 dest.writeInt(uid); 2424 dest.writeString(process); 2425 dest.writeInt(foreground ? 1 : 0); 2426 dest.writeLong(activeSince); 2427 dest.writeInt(started ? 1 : 0); 2428 dest.writeInt(clientCount); 2429 dest.writeInt(crashCount); 2430 dest.writeLong(lastActivityTime); 2431 dest.writeLong(restarting); 2432 dest.writeInt(this.flags); 2433 dest.writeString(clientPackage); 2434 dest.writeInt(clientLabel); 2435 } 2436 2437 public void readFromParcel(Parcel source) { 2438 service = ComponentName.readFromParcel(source); 2439 pid = source.readInt(); 2440 uid = source.readInt(); 2441 process = source.readString(); 2442 foreground = source.readInt() != 0; 2443 activeSince = source.readLong(); 2444 started = source.readInt() != 0; 2445 clientCount = source.readInt(); 2446 crashCount = source.readInt(); 2447 lastActivityTime = source.readLong(); 2448 restarting = source.readLong(); 2449 flags = source.readInt(); 2450 clientPackage = source.readString(); 2451 clientLabel = source.readInt(); 2452 } 2453 2454 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2455 public RunningServiceInfo createFromParcel(Parcel source) { 2456 return new RunningServiceInfo(source); 2457 } 2458 public RunningServiceInfo[] newArray(int size) { 2459 return new RunningServiceInfo[size]; 2460 } 2461 }; 2462 2463 private RunningServiceInfo(Parcel source) { 2464 readFromParcel(source); 2465 } 2466 } 2467 2468 /** 2469 * Return a list of the services that are currently running. 2470 * 2471 * <p><b>Note: this method is only intended for debugging or implementing 2472 * service management type user interfaces.</b></p> 2473 * 2474 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2475 * is no longer available to third party applications. For backwards compatibility, 2476 * it will still return the caller's own services. 2477 * 2478 * @param maxNum The maximum number of entries to return in the list. The 2479 * actual number returned may be smaller, depending on how many services 2480 * are running. 2481 * 2482 * @return Returns a list of RunningServiceInfo records describing each of 2483 * the running tasks. 2484 */ 2485 @Deprecated 2486 public List<RunningServiceInfo> getRunningServices(int maxNum) 2487 throws SecurityException { 2488 try { 2489 return getService() 2490 .getServices(maxNum, 0); 2491 } catch (RemoteException e) { 2492 throw e.rethrowFromSystemServer(); 2493 } 2494 } 2495 2496 /** 2497 * Returns a PendingIntent you can start to show a control panel for the 2498 * given running service. If the service does not have a control panel, 2499 * null is returned. 2500 */ 2501 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2502 throws SecurityException { 2503 try { 2504 return getService() 2505 .getRunningServiceControlPanel(service); 2506 } catch (RemoteException e) { 2507 throw e.rethrowFromSystemServer(); 2508 } 2509 } 2510 2511 /** 2512 * Information you can retrieve about the available memory through 2513 * {@link ActivityManager#getMemoryInfo}. 2514 */ 2515 public static class MemoryInfo implements Parcelable { 2516 /** 2517 * The available memory on the system. This number should not 2518 * be considered absolute: due to the nature of the kernel, a significant 2519 * portion of this memory is actually in use and needed for the overall 2520 * system to run well. 2521 */ 2522 public long availMem; 2523 2524 /** 2525 * The total memory accessible by the kernel. This is basically the 2526 * RAM size of the device, not including below-kernel fixed allocations 2527 * like DMA buffers, RAM for the baseband CPU, etc. 2528 */ 2529 public long totalMem; 2530 2531 /** 2532 * The threshold of {@link #availMem} at which we consider memory to be 2533 * low and start killing background services and other non-extraneous 2534 * processes. 2535 */ 2536 public long threshold; 2537 2538 /** 2539 * Set to true if the system considers itself to currently be in a low 2540 * memory situation. 2541 */ 2542 public boolean lowMemory; 2543 2544 /** @hide */ 2545 public long hiddenAppThreshold; 2546 /** @hide */ 2547 public long secondaryServerThreshold; 2548 /** @hide */ 2549 public long visibleAppThreshold; 2550 /** @hide */ 2551 public long foregroundAppThreshold; 2552 2553 public MemoryInfo() { 2554 } 2555 2556 public int describeContents() { 2557 return 0; 2558 } 2559 2560 public void writeToParcel(Parcel dest, int flags) { 2561 dest.writeLong(availMem); 2562 dest.writeLong(totalMem); 2563 dest.writeLong(threshold); 2564 dest.writeInt(lowMemory ? 1 : 0); 2565 dest.writeLong(hiddenAppThreshold); 2566 dest.writeLong(secondaryServerThreshold); 2567 dest.writeLong(visibleAppThreshold); 2568 dest.writeLong(foregroundAppThreshold); 2569 } 2570 2571 public void readFromParcel(Parcel source) { 2572 availMem = source.readLong(); 2573 totalMem = source.readLong(); 2574 threshold = source.readLong(); 2575 lowMemory = source.readInt() != 0; 2576 hiddenAppThreshold = source.readLong(); 2577 secondaryServerThreshold = source.readLong(); 2578 visibleAppThreshold = source.readLong(); 2579 foregroundAppThreshold = source.readLong(); 2580 } 2581 2582 public static final Creator<MemoryInfo> CREATOR 2583 = new Creator<MemoryInfo>() { 2584 public MemoryInfo createFromParcel(Parcel source) { 2585 return new MemoryInfo(source); 2586 } 2587 public MemoryInfo[] newArray(int size) { 2588 return new MemoryInfo[size]; 2589 } 2590 }; 2591 2592 private MemoryInfo(Parcel source) { 2593 readFromParcel(source); 2594 } 2595 } 2596 2597 /** 2598 * Return general information about the memory state of the system. This 2599 * can be used to help decide how to manage your own memory, though note 2600 * that polling is not recommended and 2601 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2602 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2603 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2604 * level of your process as needed, which gives a better hint for how to 2605 * manage its memory. 2606 */ 2607 public void getMemoryInfo(MemoryInfo outInfo) { 2608 try { 2609 getService().getMemoryInfo(outInfo); 2610 } catch (RemoteException e) { 2611 throw e.rethrowFromSystemServer(); 2612 } 2613 } 2614 2615 /** 2616 * Information you can retrieve about an ActivityStack in the system. 2617 * @hide 2618 */ 2619 public static class StackInfo implements Parcelable { 2620 public int stackId; 2621 public Rect bounds = new Rect(); 2622 public int[] taskIds; 2623 public String[] taskNames; 2624 public Rect[] taskBounds; 2625 public int[] taskUserIds; 2626 public ComponentName topActivity; 2627 public int displayId; 2628 public int userId; 2629 public boolean visible; 2630 // Index of the stack in the display's stack list, can be used for comparison of stack order 2631 public int position; 2632 /** 2633 * The full configuration the stack is currently running in. 2634 * @hide 2635 */ 2636 final public Configuration configuration = new Configuration(); 2637 2638 @Override 2639 public int describeContents() { 2640 return 0; 2641 } 2642 2643 @Override 2644 public void writeToParcel(Parcel dest, int flags) { 2645 dest.writeInt(stackId); 2646 dest.writeInt(bounds.left); 2647 dest.writeInt(bounds.top); 2648 dest.writeInt(bounds.right); 2649 dest.writeInt(bounds.bottom); 2650 dest.writeIntArray(taskIds); 2651 dest.writeStringArray(taskNames); 2652 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2653 dest.writeInt(boundsCount); 2654 for (int i = 0; i < boundsCount; i++) { 2655 dest.writeInt(taskBounds[i].left); 2656 dest.writeInt(taskBounds[i].top); 2657 dest.writeInt(taskBounds[i].right); 2658 dest.writeInt(taskBounds[i].bottom); 2659 } 2660 dest.writeIntArray(taskUserIds); 2661 dest.writeInt(displayId); 2662 dest.writeInt(userId); 2663 dest.writeInt(visible ? 1 : 0); 2664 dest.writeInt(position); 2665 if (topActivity != null) { 2666 dest.writeInt(1); 2667 topActivity.writeToParcel(dest, 0); 2668 } else { 2669 dest.writeInt(0); 2670 } 2671 configuration.writeToParcel(dest, flags); 2672 } 2673 2674 public void readFromParcel(Parcel source) { 2675 stackId = source.readInt(); 2676 bounds = new Rect( 2677 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2678 taskIds = source.createIntArray(); 2679 taskNames = source.createStringArray(); 2680 final int boundsCount = source.readInt(); 2681 if (boundsCount > 0) { 2682 taskBounds = new Rect[boundsCount]; 2683 for (int i = 0; i < boundsCount; i++) { 2684 taskBounds[i] = new Rect(); 2685 taskBounds[i].set( 2686 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2687 } 2688 } else { 2689 taskBounds = null; 2690 } 2691 taskUserIds = source.createIntArray(); 2692 displayId = source.readInt(); 2693 userId = source.readInt(); 2694 visible = source.readInt() > 0; 2695 position = source.readInt(); 2696 if (source.readInt() > 0) { 2697 topActivity = ComponentName.readFromParcel(source); 2698 } 2699 configuration.readFromParcel(source); 2700 } 2701 2702 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2703 @Override 2704 public StackInfo createFromParcel(Parcel source) { 2705 return new StackInfo(source); 2706 } 2707 @Override 2708 public StackInfo[] newArray(int size) { 2709 return new StackInfo[size]; 2710 } 2711 }; 2712 2713 public StackInfo() { 2714 } 2715 2716 private StackInfo(Parcel source) { 2717 readFromParcel(source); 2718 } 2719 2720 public String toString(String prefix) { 2721 StringBuilder sb = new StringBuilder(256); 2722 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2723 sb.append(" bounds="); sb.append(bounds.toShortString()); 2724 sb.append(" displayId="); sb.append(displayId); 2725 sb.append(" userId="); sb.append(userId); 2726 sb.append("\n"); 2727 sb.append(" configuration="); sb.append(configuration); 2728 sb.append("\n"); 2729 prefix = prefix + " "; 2730 for (int i = 0; i < taskIds.length; ++i) { 2731 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2732 sb.append(": "); sb.append(taskNames[i]); 2733 if (taskBounds != null) { 2734 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2735 } 2736 sb.append(" userId=").append(taskUserIds[i]); 2737 sb.append(" visible=").append(visible); 2738 if (topActivity != null) { 2739 sb.append(" topActivity=").append(topActivity); 2740 } 2741 sb.append("\n"); 2742 } 2743 return sb.toString(); 2744 } 2745 2746 @Override 2747 public String toString() { 2748 return toString(""); 2749 } 2750 } 2751 2752 /** 2753 * @hide 2754 */ 2755 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2756 Manifest.permission.ACCESS_INSTANT_APPS}) 2757 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2758 try { 2759 return getService().clearApplicationUserData(packageName, false, 2760 observer, mContext.getUserId()); 2761 } catch (RemoteException e) { 2762 throw e.rethrowFromSystemServer(); 2763 } 2764 } 2765 2766 /** 2767 * Permits an application to erase its own data from disk. This is equivalent to 2768 * the user choosing to clear the app's data from within the device settings UI. It 2769 * erases all dynamic data associated with the app -- its private data and data in its 2770 * private area on external storage -- but does not remove the installed application 2771 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2772 * clears all notifications and removes all Uri grants related to this application. 2773 * 2774 * @return {@code true} if the application successfully requested that the application's 2775 * data be erased; {@code false} otherwise. 2776 */ 2777 public boolean clearApplicationUserData() { 2778 return clearApplicationUserData(mContext.getPackageName(), null); 2779 } 2780 2781 2782 /** 2783 * Permits an application to get the persistent URI permissions granted to another. 2784 * 2785 * <p>Typically called by Settings or DocumentsUI, requires 2786 * {@code GET_APP_GRANTED_URI_PERMISSIONS}. 2787 * 2788 * @param packageName application to look for the granted permissions, or {@code null} to get 2789 * granted permissions for all applications 2790 * @return list of granted URI permissions 2791 * 2792 * @hide 2793 */ 2794 public ParceledListSlice<GrantedUriPermission> getGrantedUriPermissions( 2795 @Nullable String packageName) { 2796 try { 2797 @SuppressWarnings("unchecked") 2798 final ParceledListSlice<GrantedUriPermission> castedList = getService() 2799 .getGrantedUriPermissions(packageName, mContext.getUserId()); 2800 return castedList; 2801 } catch (RemoteException e) { 2802 throw e.rethrowFromSystemServer(); 2803 } 2804 } 2805 2806 /** 2807 * Permits an application to clear the persistent URI permissions granted to another. 2808 * 2809 * <p>Typically called by Settings, requires {@code CLEAR_APP_GRANTED_URI_PERMISSIONS}. 2810 * 2811 * @param packageName application to clear its granted permissions 2812 * 2813 * @hide 2814 */ 2815 public void clearGrantedUriPermissions(String packageName) { 2816 try { 2817 getService().clearGrantedUriPermissions(packageName, 2818 mContext.getUserId()); 2819 } catch (RemoteException e) { 2820 throw e.rethrowFromSystemServer(); 2821 } 2822 } 2823 2824 /** 2825 * Information you can retrieve about any processes that are in an error condition. 2826 */ 2827 public static class ProcessErrorStateInfo implements Parcelable { 2828 /** 2829 * Condition codes 2830 */ 2831 public static final int NO_ERROR = 0; 2832 public static final int CRASHED = 1; 2833 public static final int NOT_RESPONDING = 2; 2834 2835 /** 2836 * The condition that the process is in. 2837 */ 2838 public int condition; 2839 2840 /** 2841 * The process name in which the crash or error occurred. 2842 */ 2843 public String processName; 2844 2845 /** 2846 * The pid of this process; 0 if none 2847 */ 2848 public int pid; 2849 2850 /** 2851 * The kernel user-ID that has been assigned to this process; 2852 * currently this is not a unique ID (multiple applications can have 2853 * the same uid). 2854 */ 2855 public int uid; 2856 2857 /** 2858 * The activity name associated with the error, if known. May be null. 2859 */ 2860 public String tag; 2861 2862 /** 2863 * A short message describing the error condition. 2864 */ 2865 public String shortMsg; 2866 2867 /** 2868 * A long message describing the error condition. 2869 */ 2870 public String longMsg; 2871 2872 /** 2873 * The stack trace where the error originated. May be null. 2874 */ 2875 public String stackTrace; 2876 2877 /** 2878 * to be deprecated: This value will always be null. 2879 */ 2880 public byte[] crashData = null; 2881 2882 public ProcessErrorStateInfo() { 2883 } 2884 2885 @Override 2886 public int describeContents() { 2887 return 0; 2888 } 2889 2890 @Override 2891 public void writeToParcel(Parcel dest, int flags) { 2892 dest.writeInt(condition); 2893 dest.writeString(processName); 2894 dest.writeInt(pid); 2895 dest.writeInt(uid); 2896 dest.writeString(tag); 2897 dest.writeString(shortMsg); 2898 dest.writeString(longMsg); 2899 dest.writeString(stackTrace); 2900 } 2901 2902 public void readFromParcel(Parcel source) { 2903 condition = source.readInt(); 2904 processName = source.readString(); 2905 pid = source.readInt(); 2906 uid = source.readInt(); 2907 tag = source.readString(); 2908 shortMsg = source.readString(); 2909 longMsg = source.readString(); 2910 stackTrace = source.readString(); 2911 } 2912 2913 public static final Creator<ProcessErrorStateInfo> CREATOR = 2914 new Creator<ProcessErrorStateInfo>() { 2915 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2916 return new ProcessErrorStateInfo(source); 2917 } 2918 public ProcessErrorStateInfo[] newArray(int size) { 2919 return new ProcessErrorStateInfo[size]; 2920 } 2921 }; 2922 2923 private ProcessErrorStateInfo(Parcel source) { 2924 readFromParcel(source); 2925 } 2926 } 2927 2928 /** 2929 * Returns a list of any processes that are currently in an error condition. The result 2930 * will be null if all processes are running properly at this time. 2931 * 2932 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2933 * current error conditions (it will not return an empty list). This list ordering is not 2934 * specified. 2935 */ 2936 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2937 try { 2938 return getService().getProcessesInErrorState(); 2939 } catch (RemoteException e) { 2940 throw e.rethrowFromSystemServer(); 2941 } 2942 } 2943 2944 /** 2945 * Information you can retrieve about a running process. 2946 */ 2947 public static class RunningAppProcessInfo implements Parcelable { 2948 /** 2949 * The name of the process that this object is associated with 2950 */ 2951 public String processName; 2952 2953 /** 2954 * The pid of this process; 0 if none 2955 */ 2956 public int pid; 2957 2958 /** 2959 * The user id of this process. 2960 */ 2961 public int uid; 2962 2963 /** 2964 * All packages that have been loaded into the process. 2965 */ 2966 public String pkgList[]; 2967 2968 /** 2969 * Constant for {@link #flags}: this is an app that is unable to 2970 * correctly save its state when going to the background, 2971 * so it can not be killed while in the background. 2972 * @hide 2973 */ 2974 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2975 2976 /** 2977 * Constant for {@link #flags}: this process is associated with a 2978 * persistent system app. 2979 * @hide 2980 */ 2981 public static final int FLAG_PERSISTENT = 1<<1; 2982 2983 /** 2984 * Constant for {@link #flags}: this process is associated with a 2985 * persistent system app. 2986 * @hide 2987 */ 2988 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2989 2990 /** 2991 * Flags of information. May be any of 2992 * {@link #FLAG_CANT_SAVE_STATE}. 2993 * @hide 2994 */ 2995 public int flags; 2996 2997 /** 2998 * Last memory trim level reported to the process: corresponds to 2999 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 3000 * ComponentCallbacks2.onTrimMemory(int)}. 3001 */ 3002 public int lastTrimLevel; 3003 3004 /** @hide */ 3005 @IntDef(prefix = { "IMPORTANCE_" }, value = { 3006 IMPORTANCE_FOREGROUND, 3007 IMPORTANCE_FOREGROUND_SERVICE, 3008 IMPORTANCE_TOP_SLEEPING, 3009 IMPORTANCE_VISIBLE, 3010 IMPORTANCE_PERCEPTIBLE, 3011 IMPORTANCE_CANT_SAVE_STATE, 3012 IMPORTANCE_SERVICE, 3013 IMPORTANCE_CACHED, 3014 IMPORTANCE_GONE, 3015 }) 3016 @Retention(RetentionPolicy.SOURCE) 3017 public @interface Importance {} 3018 3019 /** 3020 * Constant for {@link #importance}: This process is running the 3021 * foreground UI; that is, it is the thing currently at the top of the screen 3022 * that the user is interacting with. 3023 */ 3024 public static final int IMPORTANCE_FOREGROUND = 100; 3025 3026 /** 3027 * Constant for {@link #importance}: This process is running a foreground 3028 * service, for example to perform music playback even while the user is 3029 * not immediately in the app. This generally indicates that the process 3030 * is doing something the user actively cares about. 3031 */ 3032 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3033 3034 /** 3035 * @deprecated Pre-{@link android.os.Build.VERSION_CODES#P} version of 3036 * {@link #IMPORTANCE_TOP_SLEEPING}. As of Android 3037 * {@link android.os.Build.VERSION_CODES#P}, this is considered much less 3038 * important since we want to reduce what apps can do when the screen is off. 3039 */ 3040 @Deprecated 3041 public static final int IMPORTANCE_TOP_SLEEPING_PRE_28 = 150; 3042 3043 /** 3044 * Constant for {@link #importance}: This process is running something 3045 * that is actively visible to the user, though not in the immediate 3046 * foreground. This may be running a window that is behind the current 3047 * foreground (so paused and with its state saved, not interacting with 3048 * the user, but visible to them to some degree); it may also be running 3049 * other services under the system's control that it inconsiders important. 3050 */ 3051 public static final int IMPORTANCE_VISIBLE = 200; 3052 3053 /** 3054 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3055 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3056 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3057 * 3058 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3059 * on Android versions below {@link Build.VERSION_CODES#O}. 3060 * 3061 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3062 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3063 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3064 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3065 */ 3066 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3067 3068 /** 3069 * Constant for {@link #importance}: This process is not something the user 3070 * is directly aware of, but is otherwise perceptible to them to some degree. 3071 */ 3072 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3073 3074 /** 3075 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3076 * this wrong value 3077 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3078 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3079 * 3080 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3081 * on Android versions below {@link Build.VERSION_CODES#O}. 3082 * 3083 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3084 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3085 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3086 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3087 * 3088 * @hide 3089 */ 3090 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3091 3092 /** 3093 * Constant for {@link #importance}: This process is contains services 3094 * that should remain running. These are background services apps have 3095 * started, not something the user is aware of, so they may be killed by 3096 * the system relatively freely (though it is generally desired that they 3097 * stay running as long as they want to). 3098 */ 3099 public static final int IMPORTANCE_SERVICE = 300; 3100 3101 /** 3102 * Constant for {@link #importance}: This process is running the foreground 3103 * UI, but the device is asleep so it is not visible to the user. Though the 3104 * system will try hard to keep its process from being killed, in all other 3105 * ways we consider it a kind of cached process, with the limitations that go 3106 * along with that state: network access, running background services, etc. 3107 */ 3108 public static final int IMPORTANCE_TOP_SLEEPING = 325; 3109 3110 /** 3111 * Constant for {@link #importance}: This process is running an 3112 * application that can not save its state, and thus can't be killed 3113 * while in the background. This will be used with apps that have 3114 * {@link android.R.attr#cantSaveState} set on their application tag. 3115 */ 3116 public static final int IMPORTANCE_CANT_SAVE_STATE = 350; 3117 3118 /** 3119 * Constant for {@link #importance}: This process process contains 3120 * cached code that is expendable, not actively running any app components 3121 * we care about. 3122 */ 3123 public static final int IMPORTANCE_CACHED = 400; 3124 3125 /** 3126 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3127 */ 3128 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3129 3130 /** 3131 * Constant for {@link #importance}: This process is empty of any 3132 * actively running code. 3133 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3134 */ 3135 @Deprecated 3136 public static final int IMPORTANCE_EMPTY = 500; 3137 3138 /** 3139 * Constant for {@link #importance}: This process does not exist. 3140 */ 3141 public static final int IMPORTANCE_GONE = 1000; 3142 3143 /** 3144 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3145 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3146 * @hide 3147 */ 3148 public static @Importance int procStateToImportance(int procState) { 3149 if (procState == PROCESS_STATE_NONEXISTENT) { 3150 return IMPORTANCE_GONE; 3151 } else if (procState >= PROCESS_STATE_HOME) { 3152 return IMPORTANCE_CACHED; 3153 } else if (procState == PROCESS_STATE_HEAVY_WEIGHT) { 3154 return IMPORTANCE_CANT_SAVE_STATE; 3155 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3156 return IMPORTANCE_TOP_SLEEPING; 3157 } else if (procState >= PROCESS_STATE_SERVICE) { 3158 return IMPORTANCE_SERVICE; 3159 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3160 return IMPORTANCE_PERCEPTIBLE; 3161 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3162 return IMPORTANCE_VISIBLE; 3163 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3164 return IMPORTANCE_FOREGROUND_SERVICE; 3165 } else { 3166 return IMPORTANCE_FOREGROUND; 3167 } 3168 } 3169 3170 /** 3171 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3172 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3173 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3174 * client's target SDK < {@link VERSION_CODES#O}. 3175 * @hide 3176 */ 3177 public static @Importance int procStateToImportanceForClient(int procState, 3178 Context clientContext) { 3179 return procStateToImportanceForTargetSdk(procState, 3180 clientContext.getApplicationInfo().targetSdkVersion); 3181 } 3182 3183 /** 3184 * See {@link #procStateToImportanceForClient}. 3185 * @hide 3186 */ 3187 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3188 int targetSdkVersion) { 3189 final int importance = procStateToImportance(procState); 3190 3191 // For pre O apps, convert to the old, wrong values. 3192 if (targetSdkVersion < VERSION_CODES.O) { 3193 switch (importance) { 3194 case IMPORTANCE_PERCEPTIBLE: 3195 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3196 case IMPORTANCE_TOP_SLEEPING: 3197 return IMPORTANCE_TOP_SLEEPING_PRE_28; 3198 case IMPORTANCE_CANT_SAVE_STATE: 3199 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3200 } 3201 } 3202 return importance; 3203 } 3204 3205 /** @hide */ 3206 public static int importanceToProcState(@Importance int importance) { 3207 if (importance == IMPORTANCE_GONE) { 3208 return PROCESS_STATE_NONEXISTENT; 3209 } else if (importance >= IMPORTANCE_CACHED) { 3210 return PROCESS_STATE_HOME; 3211 } else if (importance >= IMPORTANCE_CANT_SAVE_STATE) { 3212 return PROCESS_STATE_HEAVY_WEIGHT; 3213 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3214 return PROCESS_STATE_TOP_SLEEPING; 3215 } else if (importance >= IMPORTANCE_SERVICE) { 3216 return PROCESS_STATE_SERVICE; 3217 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3218 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3219 } else if (importance >= IMPORTANCE_VISIBLE) { 3220 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3221 } else if (importance >= IMPORTANCE_TOP_SLEEPING_PRE_28) { 3222 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3223 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3224 return PROCESS_STATE_FOREGROUND_SERVICE; 3225 } else { 3226 return PROCESS_STATE_TOP; 3227 } 3228 } 3229 3230 /** 3231 * The relative importance level that the system places on this process. 3232 * These constants are numbered so that "more important" values are 3233 * always smaller than "less important" values. 3234 */ 3235 public @Importance int importance; 3236 3237 /** 3238 * An additional ordering within a particular {@link #importance} 3239 * category, providing finer-grained information about the relative 3240 * utility of processes within a category. This number means nothing 3241 * except that a smaller values are more recently used (and thus 3242 * more important). Currently an LRU value is only maintained for 3243 * the {@link #IMPORTANCE_CACHED} category, though others may 3244 * be maintained in the future. 3245 */ 3246 public int lru; 3247 3248 /** 3249 * Constant for {@link #importanceReasonCode}: nothing special has 3250 * been specified for the reason for this level. 3251 */ 3252 public static final int REASON_UNKNOWN = 0; 3253 3254 /** 3255 * Constant for {@link #importanceReasonCode}: one of the application's 3256 * content providers is being used by another process. The pid of 3257 * the client process is in {@link #importanceReasonPid} and the 3258 * target provider in this process is in 3259 * {@link #importanceReasonComponent}. 3260 */ 3261 public static final int REASON_PROVIDER_IN_USE = 1; 3262 3263 /** 3264 * Constant for {@link #importanceReasonCode}: one of the application's 3265 * content providers is being used by another process. The pid of 3266 * the client process is in {@link #importanceReasonPid} and the 3267 * target provider in this process is in 3268 * {@link #importanceReasonComponent}. 3269 */ 3270 public static final int REASON_SERVICE_IN_USE = 2; 3271 3272 /** 3273 * The reason for {@link #importance}, if any. 3274 */ 3275 public int importanceReasonCode; 3276 3277 /** 3278 * For the specified values of {@link #importanceReasonCode}, this 3279 * is the process ID of the other process that is a client of this 3280 * process. This will be 0 if no other process is using this one. 3281 */ 3282 public int importanceReasonPid; 3283 3284 /** 3285 * For the specified values of {@link #importanceReasonCode}, this 3286 * is the name of the component that is being used in this process. 3287 */ 3288 public ComponentName importanceReasonComponent; 3289 3290 /** 3291 * When {@link #importanceReasonPid} is non-0, this is the importance 3292 * of the other pid. @hide 3293 */ 3294 public int importanceReasonImportance; 3295 3296 /** 3297 * Current process state, as per PROCESS_STATE_* constants. 3298 * @hide 3299 */ 3300 public int processState; 3301 3302 public RunningAppProcessInfo() { 3303 importance = IMPORTANCE_FOREGROUND; 3304 importanceReasonCode = REASON_UNKNOWN; 3305 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3306 } 3307 3308 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3309 processName = pProcessName; 3310 pid = pPid; 3311 pkgList = pArr; 3312 } 3313 3314 public int describeContents() { 3315 return 0; 3316 } 3317 3318 public void writeToParcel(Parcel dest, int flags) { 3319 dest.writeString(processName); 3320 dest.writeInt(pid); 3321 dest.writeInt(uid); 3322 dest.writeStringArray(pkgList); 3323 dest.writeInt(this.flags); 3324 dest.writeInt(lastTrimLevel); 3325 dest.writeInt(importance); 3326 dest.writeInt(lru); 3327 dest.writeInt(importanceReasonCode); 3328 dest.writeInt(importanceReasonPid); 3329 ComponentName.writeToParcel(importanceReasonComponent, dest); 3330 dest.writeInt(importanceReasonImportance); 3331 dest.writeInt(processState); 3332 } 3333 3334 public void readFromParcel(Parcel source) { 3335 processName = source.readString(); 3336 pid = source.readInt(); 3337 uid = source.readInt(); 3338 pkgList = source.readStringArray(); 3339 flags = source.readInt(); 3340 lastTrimLevel = source.readInt(); 3341 importance = source.readInt(); 3342 lru = source.readInt(); 3343 importanceReasonCode = source.readInt(); 3344 importanceReasonPid = source.readInt(); 3345 importanceReasonComponent = ComponentName.readFromParcel(source); 3346 importanceReasonImportance = source.readInt(); 3347 processState = source.readInt(); 3348 } 3349 3350 public static final Creator<RunningAppProcessInfo> CREATOR = 3351 new Creator<RunningAppProcessInfo>() { 3352 public RunningAppProcessInfo createFromParcel(Parcel source) { 3353 return new RunningAppProcessInfo(source); 3354 } 3355 public RunningAppProcessInfo[] newArray(int size) { 3356 return new RunningAppProcessInfo[size]; 3357 } 3358 }; 3359 3360 private RunningAppProcessInfo(Parcel source) { 3361 readFromParcel(source); 3362 } 3363 } 3364 3365 /** 3366 * Returns a list of application processes installed on external media 3367 * that are running on the device. 3368 * 3369 * <p><b>Note: this method is only intended for debugging or building 3370 * a user-facing process management UI.</b></p> 3371 * 3372 * @return Returns a list of ApplicationInfo records, or null if none 3373 * This list ordering is not specified. 3374 * @hide 3375 */ 3376 public List<ApplicationInfo> getRunningExternalApplications() { 3377 try { 3378 return getService().getRunningExternalApplications(); 3379 } catch (RemoteException e) { 3380 throw e.rethrowFromSystemServer(); 3381 } 3382 } 3383 3384 /** 3385 * Query whether the user has enabled background restrictions for this app. 3386 * 3387 * <p> The user may chose to do this, if they see that an app is consuming an unreasonable 3388 * amount of battery while in the background. </p> 3389 * 3390 * <p> If true, any work that the app tries to do will be aggressively restricted while it is in 3391 * the background. At a minimum, jobs and alarms will not execute and foreground services 3392 * cannot be started unless an app activity is in the foreground. </p> 3393 * 3394 * <p><b> Note that these restrictions stay in effect even when the device is charging.</b></p> 3395 * 3396 * @return true if user has enforced background restrictions for this app, false otherwise. 3397 */ 3398 public boolean isBackgroundRestricted() { 3399 try { 3400 return getService().isBackgroundRestricted(mContext.getOpPackageName()); 3401 } catch (RemoteException e) { 3402 throw e.rethrowFromSystemServer(); 3403 } 3404 } 3405 3406 /** 3407 * Sets the memory trim mode for a process and schedules a memory trim operation. 3408 * 3409 * <p><b>Note: this method is only intended for testing framework.</b></p> 3410 * 3411 * @return Returns true if successful. 3412 * @hide 3413 */ 3414 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3415 try { 3416 return getService().setProcessMemoryTrimLevel(process, userId, 3417 level); 3418 } catch (RemoteException e) { 3419 throw e.rethrowFromSystemServer(); 3420 } 3421 } 3422 3423 /** 3424 * Returns a list of application processes that are running on the device. 3425 * 3426 * <p><b>Note: this method is only intended for debugging or building 3427 * a user-facing process management UI.</b></p> 3428 * 3429 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3430 * running processes (it will not return an empty list). This list ordering is not 3431 * specified. 3432 */ 3433 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3434 try { 3435 return getService().getRunningAppProcesses(); 3436 } catch (RemoteException e) { 3437 throw e.rethrowFromSystemServer(); 3438 } 3439 } 3440 3441 /** 3442 * Return the importance of a given package name, based on the processes that are 3443 * currently running. The return value is one of the importance constants defined 3444 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3445 * processes that this package has code running inside of. If there are no processes 3446 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3447 * @hide 3448 */ 3449 @SystemApi @TestApi 3450 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3451 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3452 try { 3453 int procState = getService().getPackageProcessState(packageName, 3454 mContext.getOpPackageName()); 3455 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3456 } catch (RemoteException e) { 3457 throw e.rethrowFromSystemServer(); 3458 } 3459 } 3460 3461 /** 3462 * Return the importance of a given uid, based on the processes that are 3463 * currently running. The return value is one of the importance constants defined 3464 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3465 * processes that this uid has running. If there are no processes 3466 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3467 * @hide 3468 */ 3469 @SystemApi @TestApi 3470 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3471 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3472 try { 3473 int procState = getService().getUidProcessState(uid, 3474 mContext.getOpPackageName()); 3475 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3476 } catch (RemoteException e) { 3477 throw e.rethrowFromSystemServer(); 3478 } 3479 } 3480 3481 /** 3482 * Callback to get reports about changes to the importance of a uid. Use with 3483 * {@link #addOnUidImportanceListener}. 3484 * @hide 3485 */ 3486 @SystemApi @TestApi 3487 public interface OnUidImportanceListener { 3488 /** 3489 * The importance if a given uid has changed. Will be one of the importance 3490 * values in {@link RunningAppProcessInfo}; 3491 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3492 * when the uid is no longer running at all. This callback will happen on a thread 3493 * from a thread pool, not the main UI thread. 3494 * @param uid The uid whose importance has changed. 3495 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3496 */ 3497 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3498 } 3499 3500 /** 3501 * Start monitoring changes to the imoportance of uids running in the system. 3502 * @param listener The listener callback that will receive change reports. 3503 * @param importanceCutpoint The level of importance in which the caller is interested 3504 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3505 * is used here, you will receive a call each time a uids importance transitions between 3506 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3507 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3508 * 3509 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3510 * permission to use this feature.</p> 3511 * 3512 * @throws IllegalArgumentException If the listener is already registered. 3513 * @throws SecurityException If the caller does not hold 3514 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3515 * @hide 3516 */ 3517 @SystemApi @TestApi 3518 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3519 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3520 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3521 synchronized (this) { 3522 if (mImportanceListeners.containsKey(listener)) { 3523 throw new IllegalArgumentException("Listener already registered: " + listener); 3524 } 3525 // TODO: implement the cut point in the system process to avoid IPCs. 3526 UidObserver observer = new UidObserver(listener, mContext); 3527 try { 3528 getService().registerUidObserver(observer, 3529 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3530 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3531 mContext.getOpPackageName()); 3532 } catch (RemoteException e) { 3533 throw e.rethrowFromSystemServer(); 3534 } 3535 mImportanceListeners.put(listener, observer); 3536 } 3537 } 3538 3539 /** 3540 * Remove an importance listener that was previously registered with 3541 * {@link #addOnUidImportanceListener}. 3542 * 3543 * @throws IllegalArgumentException If the listener is not registered. 3544 * @hide 3545 */ 3546 @SystemApi @TestApi 3547 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3548 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3549 synchronized (this) { 3550 UidObserver observer = mImportanceListeners.remove(listener); 3551 if (observer == null) { 3552 throw new IllegalArgumentException("Listener not registered: " + listener); 3553 } 3554 try { 3555 getService().unregisterUidObserver(observer); 3556 } catch (RemoteException e) { 3557 throw e.rethrowFromSystemServer(); 3558 } 3559 } 3560 } 3561 3562 /** 3563 * Return global memory state information for the calling process. This 3564 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3565 * only fields that will be filled in are 3566 * {@link RunningAppProcessInfo#pid}, 3567 * {@link RunningAppProcessInfo#uid}, 3568 * {@link RunningAppProcessInfo#lastTrimLevel}, 3569 * {@link RunningAppProcessInfo#importance}, 3570 * {@link RunningAppProcessInfo#lru}, and 3571 * {@link RunningAppProcessInfo#importanceReasonCode}. 3572 */ 3573 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3574 try { 3575 getService().getMyMemoryState(outState); 3576 } catch (RemoteException e) { 3577 throw e.rethrowFromSystemServer(); 3578 } 3579 } 3580 3581 /** 3582 * Return information about the memory usage of one or more processes. 3583 * 3584 * <p><b>Note: this method is only intended for debugging or building 3585 * a user-facing process management UI.</b></p> 3586 * 3587 * @param pids The pids of the processes whose memory usage is to be 3588 * retrieved. 3589 * @return Returns an array of memory information, one for each 3590 * requested pid. 3591 */ 3592 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3593 try { 3594 return getService().getProcessMemoryInfo(pids); 3595 } catch (RemoteException e) { 3596 throw e.rethrowFromSystemServer(); 3597 } 3598 } 3599 3600 /** 3601 * @deprecated This is now just a wrapper for 3602 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3603 * is no longer available to applications because it allows them to 3604 * break other applications by removing their alarms, stopping their 3605 * services, etc. 3606 */ 3607 @Deprecated 3608 public void restartPackage(String packageName) { 3609 killBackgroundProcesses(packageName); 3610 } 3611 3612 /** 3613 * Have the system immediately kill all background processes associated 3614 * with the given package. This is the same as the kernel killing those 3615 * processes to reclaim memory; the system will take care of restarting 3616 * these processes in the future as needed. 3617 * 3618 * @param packageName The name of the package whose processes are to 3619 * be killed. 3620 */ 3621 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3622 public void killBackgroundProcesses(String packageName) { 3623 try { 3624 getService().killBackgroundProcesses(packageName, 3625 mContext.getUserId()); 3626 } catch (RemoteException e) { 3627 throw e.rethrowFromSystemServer(); 3628 } 3629 } 3630 3631 /** 3632 * Kills the specified UID. 3633 * @param uid The UID to kill. 3634 * @param reason The reason for the kill. 3635 * 3636 * @hide 3637 */ 3638 @SystemApi 3639 @RequiresPermission(Manifest.permission.KILL_UID) 3640 public void killUid(int uid, String reason) { 3641 try { 3642 getService().killUid(UserHandle.getAppId(uid), 3643 UserHandle.getUserId(uid), reason); 3644 } catch (RemoteException e) { 3645 throw e.rethrowFromSystemServer(); 3646 } 3647 } 3648 3649 /** 3650 * Have the system perform a force stop of everything associated with 3651 * the given application package. All processes that share its uid 3652 * will be killed, all services it has running stopped, all activities 3653 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3654 * broadcast will be sent, so that any of its registered alarms can 3655 * be stopped, notifications removed, etc. 3656 * 3657 * <p>You must hold the permission 3658 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3659 * call this method. 3660 * 3661 * @param packageName The name of the package to be stopped. 3662 * @param userId The user for which the running package is to be stopped. 3663 * 3664 * @hide This is not available to third party applications due to 3665 * it allowing them to break other applications by stopping their 3666 * services, removing their alarms, etc. 3667 */ 3668 public void forceStopPackageAsUser(String packageName, int userId) { 3669 try { 3670 getService().forceStopPackage(packageName, userId); 3671 } catch (RemoteException e) { 3672 throw e.rethrowFromSystemServer(); 3673 } 3674 } 3675 3676 /** 3677 * @see #forceStopPackageAsUser(String, int) 3678 * @hide 3679 */ 3680 @SystemApi 3681 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3682 public void forceStopPackage(String packageName) { 3683 forceStopPackageAsUser(packageName, mContext.getUserId()); 3684 } 3685 3686 /** 3687 * Get the device configuration attributes. 3688 */ 3689 public ConfigurationInfo getDeviceConfigurationInfo() { 3690 try { 3691 return getService().getDeviceConfigurationInfo(); 3692 } catch (RemoteException e) { 3693 throw e.rethrowFromSystemServer(); 3694 } 3695 } 3696 3697 /** 3698 * Get the preferred density of icons for the launcher. This is used when 3699 * custom drawables are created (e.g., for shortcuts). 3700 * 3701 * @return density in terms of DPI 3702 */ 3703 public int getLauncherLargeIconDensity() { 3704 final Resources res = mContext.getResources(); 3705 final int density = res.getDisplayMetrics().densityDpi; 3706 final int sw = res.getConfiguration().smallestScreenWidthDp; 3707 3708 if (sw < 600) { 3709 // Smaller than approx 7" tablets, use the regular icon size. 3710 return density; 3711 } 3712 3713 switch (density) { 3714 case DisplayMetrics.DENSITY_LOW: 3715 return DisplayMetrics.DENSITY_MEDIUM; 3716 case DisplayMetrics.DENSITY_MEDIUM: 3717 return DisplayMetrics.DENSITY_HIGH; 3718 case DisplayMetrics.DENSITY_TV: 3719 return DisplayMetrics.DENSITY_XHIGH; 3720 case DisplayMetrics.DENSITY_HIGH: 3721 return DisplayMetrics.DENSITY_XHIGH; 3722 case DisplayMetrics.DENSITY_XHIGH: 3723 return DisplayMetrics.DENSITY_XXHIGH; 3724 case DisplayMetrics.DENSITY_XXHIGH: 3725 return DisplayMetrics.DENSITY_XHIGH * 2; 3726 default: 3727 // The density is some abnormal value. Return some other 3728 // abnormal value that is a reasonable scaling of it. 3729 return (int)((density*1.5f)+.5f); 3730 } 3731 } 3732 3733 /** 3734 * Get the preferred launcher icon size. This is used when custom drawables 3735 * are created (e.g., for shortcuts). 3736 * 3737 * @return dimensions of square icons in terms of pixels 3738 */ 3739 public int getLauncherLargeIconSize() { 3740 return getLauncherLargeIconSizeInner(mContext); 3741 } 3742 3743 static int getLauncherLargeIconSizeInner(Context context) { 3744 final Resources res = context.getResources(); 3745 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3746 final int sw = res.getConfiguration().smallestScreenWidthDp; 3747 3748 if (sw < 600) { 3749 // Smaller than approx 7" tablets, use the regular icon size. 3750 return size; 3751 } 3752 3753 final int density = res.getDisplayMetrics().densityDpi; 3754 3755 switch (density) { 3756 case DisplayMetrics.DENSITY_LOW: 3757 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3758 case DisplayMetrics.DENSITY_MEDIUM: 3759 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3760 case DisplayMetrics.DENSITY_TV: 3761 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3762 case DisplayMetrics.DENSITY_HIGH: 3763 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3764 case DisplayMetrics.DENSITY_XHIGH: 3765 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3766 case DisplayMetrics.DENSITY_XXHIGH: 3767 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3768 default: 3769 // The density is some abnormal value. Return some other 3770 // abnormal value that is a reasonable scaling of it. 3771 return (int)((size*1.5f) + .5f); 3772 } 3773 } 3774 3775 /** 3776 * Returns "true" if the user interface is currently being messed with 3777 * by a monkey. 3778 */ 3779 public static boolean isUserAMonkey() { 3780 try { 3781 return getService().isUserAMonkey(); 3782 } catch (RemoteException e) { 3783 throw e.rethrowFromSystemServer(); 3784 } 3785 } 3786 3787 /** 3788 * Returns "true" if device is running in a test harness. 3789 */ 3790 public static boolean isRunningInTestHarness() { 3791 return SystemProperties.getBoolean("ro.test_harness", false); 3792 } 3793 3794 /** 3795 * Unsupported compiled sdk warning should always be shown for the intput activity 3796 * even in cases where the system would normally not show the warning. E.g. when running in a 3797 * test harness. 3798 * 3799 * @param activity The component name of the activity to always show the warning for. 3800 * 3801 * @hide 3802 */ 3803 @TestApi 3804 public void alwaysShowUnsupportedCompileSdkWarning(ComponentName activity) { 3805 try { 3806 getService().alwaysShowUnsupportedCompileSdkWarning(activity); 3807 } catch (RemoteException e) { 3808 throw e.rethrowFromSystemServer(); 3809 } 3810 } 3811 3812 /** 3813 * Returns the launch count of each installed package. 3814 * 3815 * @hide 3816 */ 3817 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3818 try { 3819 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3820 ServiceManager.getService("usagestats")); 3821 if (usageStatsService == null) { 3822 return new HashMap<String, Integer>(); 3823 } 3824 3825 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3826 ActivityThread.currentPackageName()); 3827 if (allPkgUsageStats == null) { 3828 return new HashMap<String, Integer>(); 3829 } 3830 3831 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3832 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3833 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3834 } 3835 3836 return launchCounts; 3837 } catch (RemoteException e) { 3838 Log.w(TAG, "Could not query launch counts", e); 3839 return new HashMap<String, Integer>(); 3840 } 3841 }*/ 3842 3843 /** @hide */ 3844 public static int checkComponentPermission(String permission, int uid, 3845 int owningUid, boolean exported) { 3846 // Root, system server get to do everything. 3847 final int appId = UserHandle.getAppId(uid); 3848 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3849 return PackageManager.PERMISSION_GRANTED; 3850 } 3851 // Isolated processes don't get any permissions. 3852 if (UserHandle.isIsolated(uid)) { 3853 return PackageManager.PERMISSION_DENIED; 3854 } 3855 // If there is a uid that owns whatever is being accessed, it has 3856 // blanket access to it regardless of the permissions it requires. 3857 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3858 return PackageManager.PERMISSION_GRANTED; 3859 } 3860 // If the target is not exported, then nobody else can get to it. 3861 if (!exported) { 3862 /* 3863 RuntimeException here = new RuntimeException("here"); 3864 here.fillInStackTrace(); 3865 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3866 here); 3867 */ 3868 return PackageManager.PERMISSION_DENIED; 3869 } 3870 if (permission == null) { 3871 return PackageManager.PERMISSION_GRANTED; 3872 } 3873 try { 3874 return AppGlobals.getPackageManager() 3875 .checkUidPermission(permission, uid); 3876 } catch (RemoteException e) { 3877 throw e.rethrowFromSystemServer(); 3878 } 3879 } 3880 3881 /** @hide */ 3882 public static int checkUidPermission(String permission, int uid) { 3883 try { 3884 return AppGlobals.getPackageManager() 3885 .checkUidPermission(permission, uid); 3886 } catch (RemoteException e) { 3887 throw e.rethrowFromSystemServer(); 3888 } 3889 } 3890 3891 /** 3892 * @hide 3893 * Helper for dealing with incoming user arguments to system service calls. 3894 * Takes care of checking permissions and converting USER_CURRENT to the 3895 * actual current user. 3896 * 3897 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3898 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3899 * @param userId The user id argument supplied by the caller -- this is the user 3900 * they want to run as. 3901 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3902 * to get a USER_ALL returned and deal with it correctly. If false, 3903 * an exception will be thrown if USER_ALL is supplied. 3904 * @param requireFull If true, the caller must hold 3905 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3906 * different user than their current process; otherwise they must hold 3907 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3908 * @param name Optional textual name of the incoming call; only for generating error messages. 3909 * @param callerPackage Optional package name of caller; only for error messages. 3910 * 3911 * @return Returns the user ID that the call should run as. Will always be a concrete 3912 * user number, unless <var>allowAll</var> is true in which case it could also be 3913 * USER_ALL. 3914 */ 3915 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3916 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3917 if (UserHandle.getUserId(callingUid) == userId) { 3918 return userId; 3919 } 3920 try { 3921 return getService().handleIncomingUser(callingPid, 3922 callingUid, userId, allowAll, requireFull, name, callerPackage); 3923 } catch (RemoteException e) { 3924 throw e.rethrowFromSystemServer(); 3925 } 3926 } 3927 3928 /** 3929 * Gets the userId of the current foreground user. Requires system permissions. 3930 * @hide 3931 */ 3932 @SystemApi 3933 @RequiresPermission(anyOf = { 3934 "android.permission.INTERACT_ACROSS_USERS", 3935 "android.permission.INTERACT_ACROSS_USERS_FULL" 3936 }) 3937 public static int getCurrentUser() { 3938 UserInfo ui; 3939 try { 3940 ui = getService().getCurrentUser(); 3941 return ui != null ? ui.id : 0; 3942 } catch (RemoteException e) { 3943 throw e.rethrowFromSystemServer(); 3944 } 3945 } 3946 3947 /** 3948 * @param userid the user's id. Zero indicates the default user. 3949 * @hide 3950 */ 3951 public boolean switchUser(int userid) { 3952 try { 3953 return getService().switchUser(userid); 3954 } catch (RemoteException e) { 3955 throw e.rethrowFromSystemServer(); 3956 } 3957 } 3958 3959 /** 3960 * Logs out current current foreground user by switching to the system user and stopping the 3961 * user being switched from. 3962 * @hide 3963 */ 3964 public static void logoutCurrentUser() { 3965 int currentUser = ActivityManager.getCurrentUser(); 3966 if (currentUser != UserHandle.USER_SYSTEM) { 3967 try { 3968 getService().switchUser(UserHandle.USER_SYSTEM); 3969 getService().stopUser(currentUser, /* force= */ false, null); 3970 } catch (RemoteException e) { 3971 e.rethrowFromSystemServer(); 3972 } 3973 } 3974 } 3975 3976 /** {@hide} */ 3977 public static final int FLAG_OR_STOPPED = 1 << 0; 3978 /** {@hide} */ 3979 public static final int FLAG_AND_LOCKED = 1 << 1; 3980 /** {@hide} */ 3981 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3982 /** {@hide} */ 3983 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3984 3985 /** 3986 * Return whether the given user is actively running. This means that 3987 * the user is in the "started" state, not "stopped" -- it is currently 3988 * allowed to run code through scheduled alarms, receiving broadcasts, 3989 * etc. A started user may be either the current foreground user or a 3990 * background user; the result here does not distinguish between the two. 3991 * @param userId the user's id. Zero indicates the default user. 3992 * @hide 3993 */ 3994 public boolean isUserRunning(int userId) { 3995 try { 3996 return getService().isUserRunning(userId, 0); 3997 } catch (RemoteException e) { 3998 throw e.rethrowFromSystemServer(); 3999 } 4000 } 4001 4002 /** {@hide} */ 4003 public boolean isVrModePackageEnabled(ComponentName component) { 4004 try { 4005 return getService().isVrModePackageEnabled(component); 4006 } catch (RemoteException e) { 4007 throw e.rethrowFromSystemServer(); 4008 } 4009 } 4010 4011 /** 4012 * Perform a system dump of various state associated with the given application 4013 * package name. This call blocks while the dump is being performed, so should 4014 * not be done on a UI thread. The data will be written to the given file 4015 * descriptor as text. 4016 * @param fd The file descriptor that the dump should be written to. The file 4017 * descriptor is <em>not</em> closed by this function; the caller continues to 4018 * own it. 4019 * @param packageName The name of the package that is to be dumped. 4020 */ 4021 @RequiresPermission(Manifest.permission.DUMP) 4022 public void dumpPackageState(FileDescriptor fd, String packageName) { 4023 dumpPackageStateStatic(fd, packageName); 4024 } 4025 4026 /** 4027 * @hide 4028 */ 4029 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 4030 FileOutputStream fout = new FileOutputStream(fd); 4031 PrintWriter pw = new FastPrintWriter(fout); 4032 dumpService(pw, fd, "package", new String[] { packageName }); 4033 pw.println(); 4034 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 4035 "-a", "package", packageName }); 4036 pw.println(); 4037 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 4038 pw.println(); 4039 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 4040 pw.println(); 4041 dumpService(pw, fd, "usagestats", new String[] { packageName }); 4042 pw.println(); 4043 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 4044 pw.flush(); 4045 } 4046 4047 /** 4048 * @hide 4049 */ 4050 public static boolean isSystemReady() { 4051 if (!sSystemReady) { 4052 if (ActivityThread.isSystem()) { 4053 sSystemReady = 4054 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 4055 } else { 4056 // Since this is being called from outside system server, system should be 4057 // ready by now. 4058 sSystemReady = true; 4059 } 4060 } 4061 return sSystemReady; 4062 } 4063 4064 /** 4065 * @hide 4066 */ 4067 public static void broadcastStickyIntent(Intent intent, int userId) { 4068 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 4069 } 4070 4071 /** 4072 * Convenience for sending a sticky broadcast. For internal use only. 4073 * 4074 * @hide 4075 */ 4076 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 4077 try { 4078 getService().broadcastIntent( 4079 null, intent, null, null, Activity.RESULT_OK, null, null, 4080 null /*permission*/, appOp, null, false, true, userId); 4081 } catch (RemoteException ex) { 4082 } 4083 } 4084 4085 /** 4086 * @hide 4087 */ 4088 public static void noteWakeupAlarm(PendingIntent ps, WorkSource workSource, int sourceUid, 4089 String sourcePkg, String tag) { 4090 try { 4091 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, workSource, 4092 sourceUid, sourcePkg, tag); 4093 } catch (RemoteException ex) { 4094 } 4095 } 4096 4097 /** 4098 * @hide 4099 */ 4100 public static void noteAlarmStart(PendingIntent ps, WorkSource workSource, int sourceUid, 4101 String tag) { 4102 try { 4103 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, workSource, 4104 sourceUid, tag); 4105 } catch (RemoteException ex) { 4106 } 4107 } 4108 4109 4110 /** 4111 * @hide 4112 */ 4113 public static void noteAlarmFinish(PendingIntent ps, WorkSource workSource, int sourceUid, 4114 String tag) { 4115 try { 4116 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, workSource, 4117 sourceUid, tag); 4118 } catch (RemoteException ex) { 4119 } 4120 } 4121 4122 /** 4123 * @hide 4124 */ 4125 public static IActivityManager getService() { 4126 return IActivityManagerSingleton.get(); 4127 } 4128 4129 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4130 new Singleton<IActivityManager>() { 4131 @Override 4132 protected IActivityManager create() { 4133 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4134 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4135 return am; 4136 } 4137 }; 4138 4139 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4140 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4141 IBinder service = ServiceManager.checkService(name); 4142 if (service == null) { 4143 pw.println(" (Service not found)"); 4144 pw.flush(); 4145 return; 4146 } 4147 pw.flush(); 4148 if (service instanceof Binder) { 4149 // If this is a local object, it doesn't make sense to do an async dump with it, 4150 // just directly dump. 4151 try { 4152 service.dump(fd, args); 4153 } catch (Throwable e) { 4154 pw.println("Failure dumping service:"); 4155 e.printStackTrace(pw); 4156 pw.flush(); 4157 } 4158 } else { 4159 // Otherwise, it is remote, do the dump asynchronously to avoid blocking. 4160 TransferPipe tp = null; 4161 try { 4162 pw.flush(); 4163 tp = new TransferPipe(); 4164 tp.setBufferPrefix(" "); 4165 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4166 tp.go(fd, 10000); 4167 } catch (Throwable e) { 4168 if (tp != null) { 4169 tp.kill(); 4170 } 4171 pw.println("Failure dumping service:"); 4172 e.printStackTrace(pw); 4173 } 4174 } 4175 } 4176 4177 /** 4178 * Request that the system start watching for the calling process to exceed a pss 4179 * size as given here. Once called, the system will look for any occasions where it 4180 * sees the associated process with a larger pss size and, when this happens, automatically 4181 * pull a heap dump from it and allow the user to share the data. Note that this request 4182 * continues running even if the process is killed and restarted. To remove the watch, 4183 * use {@link #clearWatchHeapLimit()}. 4184 * 4185 * <p>This API only work if the calling process has been marked as 4186 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4187 * (userdebug or eng) build.</p> 4188 * 4189 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4190 * handle heap limit reports themselves.</p> 4191 * 4192 * @param pssSize The size in bytes to set the limit at. 4193 */ 4194 public void setWatchHeapLimit(long pssSize) { 4195 try { 4196 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4197 mContext.getPackageName()); 4198 } catch (RemoteException e) { 4199 throw e.rethrowFromSystemServer(); 4200 } 4201 } 4202 4203 /** 4204 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4205 * If your package has an activity handling this action, it will be launched with the 4206 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4207 * match the activty must support this action and a MIME type of "*/*". 4208 */ 4209 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4210 4211 /** 4212 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4213 */ 4214 public void clearWatchHeapLimit() { 4215 try { 4216 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4217 } catch (RemoteException e) { 4218 throw e.rethrowFromSystemServer(); 4219 } 4220 } 4221 4222 /** 4223 * Return whether currently in lock task mode. When in this mode 4224 * no new tasks can be created or switched to. 4225 * 4226 * @see Activity#startLockTask() 4227 * 4228 * @deprecated Use {@link #getLockTaskModeState} instead. 4229 */ 4230 @Deprecated 4231 public boolean isInLockTaskMode() { 4232 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4233 } 4234 4235 /** 4236 * Return the current state of task locking. The three possible outcomes 4237 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4238 * and {@link #LOCK_TASK_MODE_PINNED}. 4239 * 4240 * @see Activity#startLockTask() 4241 */ 4242 public int getLockTaskModeState() { 4243 try { 4244 return getService().getLockTaskModeState(); 4245 } catch (RemoteException e) { 4246 throw e.rethrowFromSystemServer(); 4247 } 4248 } 4249 4250 /** 4251 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4252 * thread can be a VR thread in a process at a time, and that thread may be subject to 4253 * restrictions on the amount of time it can run. 4254 * 4255 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4256 * method will return to normal operation, and calling this method will do nothing while 4257 * persistent VR mode is enabled. 4258 * 4259 * To reset the VR thread for an application, a tid of 0 can be passed. 4260 * 4261 * @see android.os.Process#myTid() 4262 * @param tid tid of the VR thread 4263 */ 4264 public static void setVrThread(int tid) { 4265 try { 4266 getService().setVrThread(tid); 4267 } catch (RemoteException e) { 4268 // pass 4269 } 4270 } 4271 4272 /** 4273 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4274 * beyond a single process. Only one thread can be a 4275 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4276 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4277 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4278 * persistent VR thread loses its new scheduling priority; this method must be called again to 4279 * set the persistent thread. 4280 * 4281 * To reset the persistent VR thread, a tid of 0 can be passed. 4282 * 4283 * @see android.os.Process#myTid() 4284 * @param tid tid of the VR thread 4285 * @hide 4286 */ 4287 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4288 public static void setPersistentVrThread(int tid) { 4289 try { 4290 getService().setPersistentVrThread(tid); 4291 } catch (RemoteException e) { 4292 // pass 4293 } 4294 } 4295 4296 /** 4297 * The AppTask allows you to manage your own application's tasks. 4298 * See {@link android.app.ActivityManager#getAppTasks()} 4299 */ 4300 public static class AppTask { 4301 private IAppTask mAppTaskImpl; 4302 4303 /** @hide */ 4304 public AppTask(IAppTask task) { 4305 mAppTaskImpl = task; 4306 } 4307 4308 /** 4309 * Finishes all activities in this task and removes it from the recent tasks list. 4310 */ 4311 public void finishAndRemoveTask() { 4312 try { 4313 mAppTaskImpl.finishAndRemoveTask(); 4314 } catch (RemoteException e) { 4315 throw e.rethrowFromSystemServer(); 4316 } 4317 } 4318 4319 /** 4320 * Get the RecentTaskInfo associated with this task. 4321 * 4322 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4323 */ 4324 public RecentTaskInfo getTaskInfo() { 4325 try { 4326 return mAppTaskImpl.getTaskInfo(); 4327 } catch (RemoteException e) { 4328 throw e.rethrowFromSystemServer(); 4329 } 4330 } 4331 4332 /** 4333 * Bring this task to the foreground. If it contains activities, they will be 4334 * brought to the foreground with it and their instances re-created if needed. 4335 * If it doesn't contain activities, the root activity of the task will be 4336 * re-launched. 4337 */ 4338 public void moveToFront() { 4339 try { 4340 mAppTaskImpl.moveToFront(); 4341 } catch (RemoteException e) { 4342 throw e.rethrowFromSystemServer(); 4343 } 4344 } 4345 4346 /** 4347 * Start an activity in this task. Brings the task to the foreground. If this task 4348 * is not currently active (that is, its id < 0), then a new activity for the given 4349 * Intent will be launched as the root of the task and the task brought to the 4350 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4351 * an activity to launch in a new task, then a new activity for the given Intent will 4352 * be launched on top of the task and the task brought to the foreground. If this 4353 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4354 * or would otherwise be launched in to a new task, then the activity not launched but 4355 * this task be brought to the foreground and a new intent delivered to the top 4356 * activity if appropriate. 4357 * 4358 * <p>In other words, you generally want to use an Intent here that does not specify 4359 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4360 * and let the system do the right thing.</p> 4361 * 4362 * @param intent The Intent describing the new activity to be launched on the task. 4363 * @param options Optional launch options. 4364 * 4365 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4366 */ 4367 public void startActivity(Context context, Intent intent, Bundle options) { 4368 ActivityThread thread = ActivityThread.currentActivityThread(); 4369 thread.getInstrumentation().execStartActivityFromAppTask(context, 4370 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4371 } 4372 4373 /** 4374 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4375 * Intent of this AppTask. 4376 * 4377 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4378 * be set; otherwise, it will be cleared. 4379 */ 4380 public void setExcludeFromRecents(boolean exclude) { 4381 try { 4382 mAppTaskImpl.setExcludeFromRecents(exclude); 4383 } catch (RemoteException e) { 4384 throw e.rethrowFromSystemServer(); 4385 } 4386 } 4387 } 4388} 4389