ActivityManager.java revision 60a3c1e31367cc09dd2ebb3db8b420130313f920
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import android.Manifest; 20import android.annotation.DrawableRes; 21import android.annotation.IntDef; 22import android.annotation.NonNull; 23import android.annotation.Nullable; 24import android.annotation.RequiresPermission; 25import android.annotation.SystemApi; 26import android.annotation.SystemService; 27import android.annotation.TestApi; 28import android.content.ComponentName; 29import android.content.Context; 30import android.content.Intent; 31import android.content.UriPermission; 32import android.content.pm.ActivityInfo; 33import android.content.pm.ApplicationInfo; 34import android.content.pm.ConfigurationInfo; 35import android.content.pm.IPackageDataObserver; 36import android.content.pm.PackageManager; 37import android.content.pm.ParceledListSlice; 38import android.content.pm.UserInfo; 39import android.content.res.Configuration; 40import android.content.res.Resources; 41import android.graphics.Bitmap; 42import android.graphics.Canvas; 43import android.graphics.Color; 44import android.graphics.GraphicBuffer; 45import android.graphics.Matrix; 46import android.graphics.Point; 47import android.graphics.Rect; 48import android.os.BatteryStats; 49import android.os.Binder; 50import android.os.Build; 51import android.os.Build.VERSION_CODES; 52import android.os.Bundle; 53import android.os.Debug; 54import android.os.Handler; 55import android.os.IBinder; 56import android.os.Parcel; 57import android.os.Parcelable; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ServiceManager; 61import android.os.SystemProperties; 62import android.os.UserHandle; 63import android.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.server.LocalServices; 74 75import org.xmlpull.v1.XmlSerializer; 76 77import java.io.FileDescriptor; 78import java.io.FileOutputStream; 79import java.io.IOException; 80import java.io.PrintWriter; 81import java.lang.annotation.Retention; 82import java.lang.annotation.RetentionPolicy; 83import java.util.ArrayList; 84import java.util.List; 85 86/** 87 * <p> 88 * This class gives information about, and interacts 89 * with, activities, services, and the containing 90 * process. 91 * </p> 92 * 93 * <p> 94 * A number of the methods in this class are for 95 * debugging or informational purposes and they should 96 * not be used to affect any runtime behavior of 97 * your app. These methods are called out as such in 98 * the method level documentation. 99 * </p> 100 * 101 *<p> 102 * Most application developers should not have the need to 103 * use this class, most of whose methods are for specialized 104 * use cases. However, a few methods are more broadly applicable. 105 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 106 * enables your app to detect whether it is running on a low-memory device, 107 * and behave accordingly. 108 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 109 * is for apps with reset-data functionality. 110 * </p> 111 * 112 * <p> 113 * In some special use cases, where an app interacts with 114 * its Task stack, the app may use the 115 * {@link android.app.ActivityManager.AppTask} and 116 * {@link android.app.ActivityManager.RecentTaskInfo} inner 117 * classes. However, in general, the methods in this class should 118 * be used for testing and debugging purposes only. 119 * </p> 120 */ 121@SystemService(Context.ACTIVITY_SERVICE) 122public class ActivityManager { 123 private static String TAG = "ActivityManager"; 124 125 private static int gMaxRecentTasks = -1; 126 127 private final Context mContext; 128 129 private static volatile boolean sSystemReady = false; 130 131 132 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 133 private static final int LAST_START_FATAL_ERROR_CODE = -1; 134 private static final int FIRST_START_SUCCESS_CODE = 0; 135 private static final int LAST_START_SUCCESS_CODE = 99; 136 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 137 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 138 139 static final class UidObserver extends IUidObserver.Stub { 140 final OnUidImportanceListener mListener; 141 final Context mContext; 142 143 UidObserver(OnUidImportanceListener listener, Context clientContext) { 144 mListener = listener; 145 mContext = clientContext; 146 } 147 148 @Override 149 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 150 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 151 procState, mContext)); 152 } 153 154 @Override 155 public void onUidGone(int uid, boolean disabled) { 156 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 157 } 158 159 @Override 160 public void onUidActive(int uid) { 161 } 162 163 @Override 164 public void onUidIdle(int uid, boolean disabled) { 165 } 166 167 @Override public void onUidCachedChanged(int uid, boolean cached) { 168 } 169 } 170 171 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 172 173 /** 174 * Defines acceptable types of bugreports. 175 * @hide 176 */ 177 @Retention(RetentionPolicy.SOURCE) 178 @IntDef(prefix = { "BUGREPORT_OPTION_" }, value = { 179 BUGREPORT_OPTION_FULL, 180 BUGREPORT_OPTION_INTERACTIVE, 181 BUGREPORT_OPTION_REMOTE, 182 BUGREPORT_OPTION_WEAR, 183 BUGREPORT_OPTION_TELEPHONY 184 }) 185 public @interface BugreportMode {} 186 /** 187 * Takes a bugreport without user interference (and hence causing less 188 * interference to the system), but includes all sections. 189 * @hide 190 */ 191 public static final int BUGREPORT_OPTION_FULL = 0; 192 /** 193 * Allows user to monitor progress and enter additional data; might not include all 194 * sections. 195 * @hide 196 */ 197 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 198 /** 199 * Takes a bugreport requested remotely by administrator of the Device Owner app, 200 * not the device's user. 201 * @hide 202 */ 203 public static final int BUGREPORT_OPTION_REMOTE = 2; 204 /** 205 * Takes a bugreport on a wearable device. 206 * @hide 207 */ 208 public static final int BUGREPORT_OPTION_WEAR = 3; 209 210 /** 211 * Takes a lightweight version of bugreport that only includes a few, urgent sections 212 * used to report telephony bugs. 213 * @hide 214 */ 215 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 216 217 /** 218 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 219 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 220 * uninstalled in lieu of the declaring one. The package named here must be 221 * signed with the same certificate as the one declaring the {@code <meta-data>}. 222 */ 223 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 224 225 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 226 // result is properly categorized. 227 228 /** 229 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 230 * @hide 231 */ 232 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 233 234 /** 235 * Result for IActivityManager.startVoiceActivity: active session does not match 236 * the requesting token. 237 * @hide 238 */ 239 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 240 241 /** 242 * Result for IActivityManager.startActivity: trying to start a background user 243 * activity that shouldn't be displayed for all users. 244 * @hide 245 */ 246 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 247 248 /** 249 * Result for IActivityManager.startActivity: trying to start an activity under voice 250 * control when that activity does not support the VOICE category. 251 * @hide 252 */ 253 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 254 255 /** 256 * Result for IActivityManager.startActivity: an error where the 257 * start had to be canceled. 258 * @hide 259 */ 260 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 261 262 /** 263 * Result for IActivityManager.startActivity: an error where the 264 * thing being started is not an activity. 265 * @hide 266 */ 267 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 268 269 /** 270 * Result for IActivityManager.startActivity: an error where the 271 * caller does not have permission to start the activity. 272 * @hide 273 */ 274 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 275 276 /** 277 * Result for IActivityManager.startActivity: an error where the 278 * caller has requested both to forward a result and to receive 279 * a result. 280 * @hide 281 */ 282 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 283 284 /** 285 * Result for IActivityManager.startActivity: an error where the 286 * requested class is not found. 287 * @hide 288 */ 289 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 290 291 /** 292 * Result for IActivityManager.startActivity: an error where the 293 * given Intent could not be resolved to an activity. 294 * @hide 295 */ 296 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 297 298 /** 299 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 300 * @hide 301 */ 302 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 303 304 /** 305 * Result for IActivityManager.startAssistantActivity: active session does not match 306 * the requesting token. 307 * @hide 308 */ 309 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 310 311 /** 312 * Result for IActivityManaqer.startActivity: the activity was started 313 * successfully as normal. 314 * @hide 315 */ 316 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 317 318 /** 319 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 320 * be executed if it is the recipient, and that is indeed the case. 321 * @hide 322 */ 323 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 324 325 /** 326 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 327 * a task was simply brought to the foreground. 328 * @hide 329 */ 330 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 331 332 /** 333 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 334 * the given Intent was given to the existing top activity. 335 * @hide 336 */ 337 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 338 339 /** 340 * Result for IActivityManaqer.startActivity: request was canceled because 341 * app switches are temporarily canceled to ensure the user's last request 342 * (such as pressing home) is performed. 343 * @hide 344 */ 345 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 346 347 /** 348 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 349 * while in Lock Task Mode. 350 * @hide 351 */ 352 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 353 FIRST_START_NON_FATAL_ERROR_CODE + 1; 354 355 /** 356 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 357 * externally. 358 * @hide 359 */ 360 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 361 362 /** 363 * Flag for IActivityManaqer.startActivity: do special start mode where 364 * a new activity is launched only if it is needed. 365 * @hide 366 */ 367 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 368 369 /** 370 * Flag for IActivityManaqer.startActivity: launch the app for 371 * debugging. 372 * @hide 373 */ 374 public static final int START_FLAG_DEBUG = 1<<1; 375 376 /** 377 * Flag for IActivityManaqer.startActivity: launch the app for 378 * allocation tracking. 379 * @hide 380 */ 381 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 382 383 /** 384 * Flag for IActivityManaqer.startActivity: launch the app with 385 * native debugging support. 386 * @hide 387 */ 388 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 389 390 /** 391 * Result for IActivityManaqer.broadcastIntent: success! 392 * @hide 393 */ 394 public static final int BROADCAST_SUCCESS = 0; 395 396 /** 397 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 398 * a sticky intent without appropriate permission. 399 * @hide 400 */ 401 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 402 403 /** 404 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 405 * to a stopped user. Fail. 406 * @hide 407 */ 408 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 409 410 /** 411 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 412 * for a sendBroadcast operation. 413 * @hide 414 */ 415 public static final int INTENT_SENDER_BROADCAST = 1; 416 417 /** 418 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 419 * for a startActivity operation. 420 * @hide 421 */ 422 public static final int INTENT_SENDER_ACTIVITY = 2; 423 424 /** 425 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 426 * for an activity result operation. 427 * @hide 428 */ 429 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 430 431 /** 432 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 433 * for a startService operation. 434 * @hide 435 */ 436 public static final int INTENT_SENDER_SERVICE = 4; 437 438 /** 439 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 440 * for a startForegroundService operation. 441 * @hide 442 */ 443 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 444 445 /** @hide User operation call: success! */ 446 public static final int USER_OP_SUCCESS = 0; 447 448 /** @hide User operation call: given user id is not known. */ 449 public static final int USER_OP_UNKNOWN_USER = -1; 450 451 /** @hide User operation call: given user id is the current user, can't be stopped. */ 452 public static final int USER_OP_IS_CURRENT = -2; 453 454 /** @hide User operation call: system user can't be stopped. */ 455 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 456 457 /** @hide User operation call: one of related users cannot be stopped. */ 458 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 459 460 /** 461 * Process states, describing the kind of state a particular process is in. 462 * When updating these, make sure to also check all related references to the 463 * constant in code, and update these arrays: 464 * 465 * com.android.internal.app.procstats.ProcessState#PROCESS_STATE_TO_STATE 466 * com.android.server.am.ProcessList#sProcStateToProcMem 467 * com.android.server.am.ProcessList#sFirstAwakePssTimes 468 * com.android.server.am.ProcessList#sSameAwakePssTimes 469 * com.android.server.am.ProcessList#sTestFirstPssTimes 470 * com.android.server.am.ProcessList#sTestSamePssTimes 471 */ 472 473 /** @hide Not a real process state. */ 474 public static final int PROCESS_STATE_UNKNOWN = -1; 475 476 /** @hide Process is a persistent system process. */ 477 public static final int PROCESS_STATE_PERSISTENT = 0; 478 479 /** @hide Process is a persistent system process and is doing UI. */ 480 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 481 482 /** @hide Process is hosting the current top activities. Note that this covers 483 * all activities that are visible to the user. */ 484 public static final int PROCESS_STATE_TOP = 2; 485 486 /** @hide Process is hosting a foreground service due to a system binding. */ 487 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 488 489 /** @hide Process is hosting a foreground service. */ 490 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 491 492 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 493 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 494 495 /** @hide Process is important to the user, and something they are aware of. */ 496 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 497 498 /** @hide Process is important to the user, but not something they are aware of. */ 499 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 500 501 /** @hide Process is in the background transient so we will try to keep running. */ 502 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 503 504 /** @hide Process is in the background running a backup/restore operation. */ 505 public static final int PROCESS_STATE_BACKUP = 9; 506 507 /** @hide Process is in the background running a service. Unlike oom_adj, this level 508 * is used for both the normal running in background state and the executing 509 * operations state. */ 510 public static final int PROCESS_STATE_SERVICE = 10; 511 512 /** @hide Process is in the background running a receiver. Note that from the 513 * perspective of oom_adj, receivers run at a higher foreground level, but for our 514 * prioritization here that is not necessary and putting them below services means 515 * many fewer changes in some process states as they receive broadcasts. */ 516 public static final int PROCESS_STATE_RECEIVER = 11; 517 518 /** @hide Process is in the background, but it can't restore its state so we want 519 * to try to avoid killing it. */ 520 public static final int PROCESS_STATE_HEAVY_WEIGHT = 12; 521 522 /** @hide Process is in the background but hosts the home activity. */ 523 public static final int PROCESS_STATE_HOME = 13; 524 525 /** @hide Process is in the background but hosts the last shown activity. */ 526 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 527 528 /** @hide Process is being cached for later use and contains activities. */ 529 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 530 531 /** @hide Process is being cached for later use and is a client of another cached 532 * process that contains activities. */ 533 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 534 535 /** @hide Process is being cached for later use and has an activity that corresponds 536 * to an existing recent task. */ 537 public static final int PROCESS_STATE_CACHED_RECENT = 17; 538 539 /** @hide Process is being cached for later use and is empty. */ 540 public static final int PROCESS_STATE_CACHED_EMPTY = 18; 541 542 /** @hide Process does not exist. */ 543 public static final int PROCESS_STATE_NONEXISTENT = 19; 544 545 // NOTE: If PROCESS_STATEs are added or changed, then new fields must be added 546 // to frameworks/base/core/proto/android/app/activitymanager.proto and the following method must 547 // be updated to correctly map between them. 548 /** 549 * Maps ActivityManager.PROCESS_STATE_ values to ProcessState enum. 550 * 551 * @param amInt a process state of the form ActivityManager.PROCESS_STATE_ 552 * @return the value of the corresponding ActivityManager's ProcessState enum. 553 * @hide 554 */ 555 public static final int processStateAmToProto(int amInt) { 556 return amInt * 100; 557 } 558 559 /** @hide The lowest process state number */ 560 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 561 562 /** @hide The highest process state number */ 563 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 564 565 /** @hide Should this process state be considered a background state? */ 566 public static final boolean isProcStateBackground(int procState) { 567 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 568 } 569 570 /** @hide requestType for assist context: only basic information. */ 571 public static final int ASSIST_CONTEXT_BASIC = 0; 572 573 /** @hide requestType for assist context: generate full AssistStructure. */ 574 public static final int ASSIST_CONTEXT_FULL = 1; 575 576 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 577 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 578 579 /** @hide Flag for registerUidObserver: report changes in process state. */ 580 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 581 582 /** @hide Flag for registerUidObserver: report uid gone. */ 583 public static final int UID_OBSERVER_GONE = 1<<1; 584 585 /** @hide Flag for registerUidObserver: report uid has become idle. */ 586 public static final int UID_OBSERVER_IDLE = 1<<2; 587 588 /** @hide Flag for registerUidObserver: report uid has become active. */ 589 public static final int UID_OBSERVER_ACTIVE = 1<<3; 590 591 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 592 public static final int UID_OBSERVER_CACHED = 1<<4; 593 594 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 595 public static final int APP_START_MODE_NORMAL = 0; 596 597 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 598 public static final int APP_START_MODE_DELAYED = 1; 599 600 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 601 * rigid errors (throwing exception). */ 602 public static final int APP_START_MODE_DELAYED_RIGID = 2; 603 604 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 605 * launches; this is the mode for ephemeral apps. */ 606 public static final int APP_START_MODE_DISABLED = 3; 607 608 /** 609 * Lock task mode is not active. 610 */ 611 public static final int LOCK_TASK_MODE_NONE = 0; 612 613 /** 614 * Full lock task mode is active. 615 */ 616 public static final int LOCK_TASK_MODE_LOCKED = 1; 617 618 /** 619 * App pinning mode is active. 620 */ 621 public static final int LOCK_TASK_MODE_PINNED = 2; 622 623 Point mAppTaskThumbnailSize; 624 625 /*package*/ ActivityManager(Context context, Handler handler) { 626 mContext = context; 627 } 628 629 /** 630 * Returns whether the launch was successful. 631 * @hide 632 */ 633 public static final boolean isStartResultSuccessful(int result) { 634 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 635 } 636 637 /** 638 * Returns whether the launch result was a fatal error. 639 * @hide 640 */ 641 public static final boolean isStartResultFatalError(int result) { 642 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 643 } 644 645 /** 646 * Screen compatibility mode: the application most always run in 647 * compatibility mode. 648 * @hide 649 */ 650 public static final int COMPAT_MODE_ALWAYS = -1; 651 652 /** 653 * Screen compatibility mode: the application can never run in 654 * compatibility mode. 655 * @hide 656 */ 657 public static final int COMPAT_MODE_NEVER = -2; 658 659 /** 660 * Screen compatibility mode: unknown. 661 * @hide 662 */ 663 public static final int COMPAT_MODE_UNKNOWN = -3; 664 665 /** 666 * Screen compatibility mode: the application currently has compatibility 667 * mode disabled. 668 * @hide 669 */ 670 public static final int COMPAT_MODE_DISABLED = 0; 671 672 /** 673 * Screen compatibility mode: the application currently has compatibility 674 * mode enabled. 675 * @hide 676 */ 677 public static final int COMPAT_MODE_ENABLED = 1; 678 679 /** 680 * Screen compatibility mode: request to toggle the application's 681 * compatibility mode. 682 * @hide 683 */ 684 public static final int COMPAT_MODE_TOGGLE = 2; 685 686 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 687 SystemProperties.getBoolean("debug.force_low_ram", false); 688 689 /** @hide */ 690 @TestApi 691 public static class StackId { 692 693 private StackId() { 694 } 695 696 /** Invalid stack ID. */ 697 public static final int INVALID_STACK_ID = -1; 698 699 } 700 701 /** 702 * Parameter to {@link android.app.IActivityManager#setTaskWindowingModeSplitScreenPrimary} 703 * which specifies the position of the created docked stack at the top half of the screen if 704 * in portrait mode or at the left half of the screen if in landscape mode. 705 * @hide 706 */ 707 @TestApi 708 public static final int SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT = 0; 709 710 /** 711 * Parameter to {@link android.app.IActivityManager#setTaskWindowingModeSplitScreenPrimary} 712 * which 713 * specifies the position of the created docked stack at the bottom half of the screen if 714 * in portrait mode or at the right half of the screen if in landscape mode. 715 * @hide 716 */ 717 @TestApi 718 public static final int SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 719 720 /** 721 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 722 * that the resize doesn't need to preserve the window, and can be skipped if bounds 723 * is unchanged. This mode is used by window manager in most cases. 724 * @hide 725 */ 726 public static final int RESIZE_MODE_SYSTEM = 0; 727 728 /** 729 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 730 * that the resize should preserve the window if possible. 731 * @hide 732 */ 733 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 734 735 /** 736 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 737 * that the resize should be performed even if the bounds appears unchanged. 738 * @hide 739 */ 740 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 741 742 /** 743 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 744 * manager during a screen rotation. 745 * @hide 746 */ 747 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 748 749 /** 750 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 751 * resize is due to a drag action. 752 * @hide 753 */ 754 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 755 756 /** 757 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 758 * that the resize should preserve the window if possible, and should not be skipped 759 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 760 * is ending. 761 * @hide 762 */ 763 public static final int RESIZE_MODE_USER_FORCED = 764 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 765 766 /** @hide */ 767 public int getFrontActivityScreenCompatMode() { 768 try { 769 return getService().getFrontActivityScreenCompatMode(); 770 } catch (RemoteException e) { 771 throw e.rethrowFromSystemServer(); 772 } 773 } 774 775 /** @hide */ 776 public void setFrontActivityScreenCompatMode(int mode) { 777 try { 778 getService().setFrontActivityScreenCompatMode(mode); 779 } catch (RemoteException e) { 780 throw e.rethrowFromSystemServer(); 781 } 782 } 783 784 /** @hide */ 785 public int getPackageScreenCompatMode(String packageName) { 786 try { 787 return getService().getPackageScreenCompatMode(packageName); 788 } catch (RemoteException e) { 789 throw e.rethrowFromSystemServer(); 790 } 791 } 792 793 /** @hide */ 794 public void setPackageScreenCompatMode(String packageName, int mode) { 795 try { 796 getService().setPackageScreenCompatMode(packageName, mode); 797 } catch (RemoteException e) { 798 throw e.rethrowFromSystemServer(); 799 } 800 } 801 802 /** @hide */ 803 public boolean getPackageAskScreenCompat(String packageName) { 804 try { 805 return getService().getPackageAskScreenCompat(packageName); 806 } catch (RemoteException e) { 807 throw e.rethrowFromSystemServer(); 808 } 809 } 810 811 /** @hide */ 812 public void setPackageAskScreenCompat(String packageName, boolean ask) { 813 try { 814 getService().setPackageAskScreenCompat(packageName, ask); 815 } catch (RemoteException e) { 816 throw e.rethrowFromSystemServer(); 817 } 818 } 819 820 /** 821 * Return the approximate per-application memory class of the current 822 * device. This gives you an idea of how hard a memory limit you should 823 * impose on your application to let the overall system work best. The 824 * returned value is in megabytes; the baseline Android memory class is 825 * 16 (which happens to be the Java heap limit of those devices); some 826 * devices with more memory may return 24 or even higher numbers. 827 */ 828 public int getMemoryClass() { 829 return staticGetMemoryClass(); 830 } 831 832 /** @hide */ 833 static public int staticGetMemoryClass() { 834 // Really brain dead right now -- just take this from the configured 835 // vm heap size, and assume it is in megabytes and thus ends with "m". 836 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 837 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 838 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 839 } 840 return staticGetLargeMemoryClass(); 841 } 842 843 /** 844 * Return the approximate per-application memory class of the current 845 * device when an application is running with a large heap. This is the 846 * space available for memory-intensive applications; most applications 847 * should not need this amount of memory, and should instead stay with the 848 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 849 * This may be the same size as {@link #getMemoryClass()} on memory 850 * constrained devices, or it may be significantly larger on devices with 851 * a large amount of available RAM. 852 * 853 * <p>This is the size of the application's Dalvik heap if it has 854 * specified <code>android:largeHeap="true"</code> in its manifest. 855 */ 856 public int getLargeMemoryClass() { 857 return staticGetLargeMemoryClass(); 858 } 859 860 /** @hide */ 861 static public int staticGetLargeMemoryClass() { 862 // Really brain dead right now -- just take this from the configured 863 // vm heap size, and assume it is in megabytes and thus ends with "m". 864 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 865 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 866 } 867 868 /** 869 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 870 * is ultimately up to the device configuration, but currently it generally means 871 * something with 1GB or less of RAM. This is mostly intended to be used by apps 872 * to determine whether they should turn off certain features that require more RAM. 873 */ 874 public boolean isLowRamDevice() { 875 return isLowRamDeviceStatic(); 876 } 877 878 /** @hide */ 879 public static boolean isLowRamDeviceStatic() { 880 return RoSystemProperties.CONFIG_LOW_RAM || 881 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 882 } 883 884 /** 885 * Returns true if this is a small battery device. Exactly whether a device is considered to be 886 * small battery is ultimately up to the device configuration, but currently it generally means 887 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 888 * to determine whether certain features should be altered to account for a drastically smaller 889 * battery. 890 * @hide 891 */ 892 public static boolean isSmallBatteryDevice() { 893 return RoSystemProperties.CONFIG_SMALL_BATTERY; 894 } 895 896 /** 897 * Used by persistent processes to determine if they are running on a 898 * higher-end device so should be okay using hardware drawing acceleration 899 * (which tends to consume a lot more RAM). 900 * @hide 901 */ 902 static public boolean isHighEndGfx() { 903 return !isLowRamDeviceStatic() && 904 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 905 } 906 907 /** 908 * Return the maximum number of recents entries that we will maintain and show. 909 * @hide 910 */ 911 static public int getMaxRecentTasksStatic() { 912 if (gMaxRecentTasks < 0) { 913 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 914 } 915 return gMaxRecentTasks; 916 } 917 918 /** 919 * Return the default limit on the number of recents that an app can make. 920 * @hide 921 */ 922 static public int getDefaultAppRecentsLimitStatic() { 923 return getMaxRecentTasksStatic() / 6; 924 } 925 926 /** 927 * Return the maximum limit on the number of recents that an app can make. 928 * @hide 929 */ 930 static public int getMaxAppRecentsLimitStatic() { 931 return getMaxRecentTasksStatic() / 2; 932 } 933 934 /** 935 * Returns true if the system supports at least one form of multi-window. 936 * E.g. freeform, split-screen, picture-in-picture. 937 * @hide 938 */ 939 @TestApi 940 static public boolean supportsMultiWindow(Context context) { 941 // On watches, multi-window is used to present essential system UI, and thus it must be 942 // supported regardless of device memory characteristics. 943 boolean isWatch = context.getPackageManager().hasSystemFeature( 944 PackageManager.FEATURE_WATCH); 945 return (!isLowRamDeviceStatic() || isWatch) 946 && Resources.getSystem().getBoolean( 947 com.android.internal.R.bool.config_supportsMultiWindow); 948 } 949 950 /** 951 * Returns true if the system supports split screen multi-window. 952 * @hide 953 */ 954 @TestApi 955 static public boolean supportsSplitScreenMultiWindow(Context context) { 956 return supportsMultiWindow(context) 957 && Resources.getSystem().getBoolean( 958 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 959 } 960 961 /** @removed */ 962 @Deprecated 963 public static int getMaxNumPictureInPictureActions() { 964 return 3; 965 } 966 967 /** 968 * Information you can set and retrieve about the current activity within the recent task list. 969 */ 970 public static class TaskDescription implements Parcelable { 971 /** @hide */ 972 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 973 private static final String ATTR_TASKDESCRIPTIONLABEL = 974 ATTR_TASKDESCRIPTION_PREFIX + "label"; 975 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 976 ATTR_TASKDESCRIPTION_PREFIX + "color"; 977 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 978 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 979 private static final String ATTR_TASKDESCRIPTIONICON_FILENAME = 980 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 981 private static final String ATTR_TASKDESCRIPTIONICON_RESOURCE = 982 ATTR_TASKDESCRIPTION_PREFIX + "icon_resource"; 983 984 private String mLabel; 985 private Bitmap mIcon; 986 private int mIconRes; 987 private String mIconFilename; 988 private int mColorPrimary; 989 private int mColorBackground; 990 private int mStatusBarColor; 991 private int mNavigationBarColor; 992 993 /** 994 * Creates the TaskDescription to the specified values. 995 * 996 * @param label A label and description of the current state of this task. 997 * @param icon An icon that represents the current state of this task. 998 * @param colorPrimary A color to override the theme's primary color. This color must be 999 * opaque. 1000 * @deprecated use TaskDescription constructor with icon resource instead 1001 */ 1002 @Deprecated 1003 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1004 this(label, icon, 0, null, colorPrimary, 0, 0, 0); 1005 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1006 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1007 } 1008 } 1009 1010 /** 1011 * Creates the TaskDescription to the specified values. 1012 * 1013 * @param label A label and description of the current state of this task. 1014 * @param iconRes A drawable resource of an icon that represents the current state of this 1015 * activity. 1016 * @param colorPrimary A color to override the theme's primary color. This color must be 1017 * opaque. 1018 */ 1019 public TaskDescription(String label, @DrawableRes int iconRes, int colorPrimary) { 1020 this(label, null, iconRes, null, colorPrimary, 0, 0, 0); 1021 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1022 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1023 } 1024 } 1025 1026 /** 1027 * Creates the TaskDescription to the specified values. 1028 * 1029 * @param label A label and description of the current state of this activity. 1030 * @param icon An icon that represents the current state of this activity. 1031 * @deprecated use TaskDescription constructor with icon resource instead 1032 */ 1033 @Deprecated 1034 public TaskDescription(String label, Bitmap icon) { 1035 this(label, icon, 0, null, 0, 0, 0, 0); 1036 } 1037 1038 /** 1039 * Creates the TaskDescription to the specified values. 1040 * 1041 * @param label A label and description of the current state of this activity. 1042 * @param iconRes A drawable resource of an icon that represents the current state of this 1043 * activity. 1044 */ 1045 public TaskDescription(String label, @DrawableRes int iconRes) { 1046 this(label, null, iconRes, null, 0, 0, 0, 0); 1047 } 1048 1049 /** 1050 * Creates the TaskDescription to the specified values. 1051 * 1052 * @param label A label and description of the current state of this activity. 1053 */ 1054 public TaskDescription(String label) { 1055 this(label, null, 0, null, 0, 0, 0, 0); 1056 } 1057 1058 /** 1059 * Creates an empty TaskDescription. 1060 */ 1061 public TaskDescription() { 1062 this(null, null, 0, null, 0, 0, 0, 0); 1063 } 1064 1065 /** @hide */ 1066 public TaskDescription(String label, Bitmap bitmap, int iconRes, String iconFilename, 1067 int colorPrimary, int colorBackground, int statusBarColor, int navigationBarColor) { 1068 mLabel = label; 1069 mIcon = bitmap; 1070 mIconRes = iconRes; 1071 mIconFilename = iconFilename; 1072 mColorPrimary = colorPrimary; 1073 mColorBackground = colorBackground; 1074 mStatusBarColor = statusBarColor; 1075 mNavigationBarColor = navigationBarColor; 1076 } 1077 1078 /** 1079 * Creates a copy of another TaskDescription. 1080 */ 1081 public TaskDescription(TaskDescription td) { 1082 copyFrom(td); 1083 } 1084 1085 /** 1086 * Copies this the values from another TaskDescription. 1087 * @hide 1088 */ 1089 public void copyFrom(TaskDescription other) { 1090 mLabel = other.mLabel; 1091 mIcon = other.mIcon; 1092 mIconRes = other.mIconRes; 1093 mIconFilename = other.mIconFilename; 1094 mColorPrimary = other.mColorPrimary; 1095 mColorBackground = other.mColorBackground; 1096 mStatusBarColor = other.mStatusBarColor; 1097 mNavigationBarColor = other.mNavigationBarColor; 1098 } 1099 1100 /** 1101 * Copies this the values from another TaskDescription, but preserves the hidden fields 1102 * if they weren't set on {@code other} 1103 * @hide 1104 */ 1105 public void copyFromPreserveHiddenFields(TaskDescription other) { 1106 mLabel = other.mLabel; 1107 mIcon = other.mIcon; 1108 mIconRes = other.mIconRes; 1109 mIconFilename = other.mIconFilename; 1110 mColorPrimary = other.mColorPrimary; 1111 if (other.mColorBackground != 0) { 1112 mColorBackground = other.mColorBackground; 1113 } 1114 if (other.mStatusBarColor != 0) { 1115 mStatusBarColor = other.mStatusBarColor; 1116 } 1117 if (other.mNavigationBarColor != 0) { 1118 mNavigationBarColor = other.mNavigationBarColor; 1119 } 1120 } 1121 1122 private TaskDescription(Parcel source) { 1123 readFromParcel(source); 1124 } 1125 1126 /** 1127 * Sets the label for this task description. 1128 * @hide 1129 */ 1130 public void setLabel(String label) { 1131 mLabel = label; 1132 } 1133 1134 /** 1135 * Sets the primary color for this task description. 1136 * @hide 1137 */ 1138 public void setPrimaryColor(int primaryColor) { 1139 // Ensure that the given color is valid 1140 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1141 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1142 } 1143 mColorPrimary = primaryColor; 1144 } 1145 1146 /** 1147 * Sets the background color for this task description. 1148 * @hide 1149 */ 1150 public void setBackgroundColor(int backgroundColor) { 1151 // Ensure that the given color is valid 1152 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1153 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1154 } 1155 mColorBackground = backgroundColor; 1156 } 1157 1158 /** 1159 * @hide 1160 */ 1161 public void setStatusBarColor(int statusBarColor) { 1162 mStatusBarColor = statusBarColor; 1163 } 1164 1165 /** 1166 * @hide 1167 */ 1168 public void setNavigationBarColor(int navigationBarColor) { 1169 mNavigationBarColor = navigationBarColor; 1170 } 1171 1172 /** 1173 * Sets the icon for this task description. 1174 * @hide 1175 */ 1176 public void setIcon(Bitmap icon) { 1177 mIcon = icon; 1178 } 1179 1180 /** 1181 * Sets the icon resource for this task description. 1182 * @hide 1183 */ 1184 public void setIcon(int iconRes) { 1185 mIconRes = iconRes; 1186 } 1187 1188 /** 1189 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1190 * bitmap. 1191 * @hide 1192 */ 1193 public void setIconFilename(String iconFilename) { 1194 mIconFilename = iconFilename; 1195 mIcon = null; 1196 } 1197 1198 /** 1199 * @return The label and description of the current state of this task. 1200 */ 1201 public String getLabel() { 1202 return mLabel; 1203 } 1204 1205 /** 1206 * @return The icon that represents the current state of this task. 1207 */ 1208 public Bitmap getIcon() { 1209 if (mIcon != null) { 1210 return mIcon; 1211 } 1212 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1213 } 1214 1215 /** @hide */ 1216 @TestApi 1217 public int getIconResource() { 1218 return mIconRes; 1219 } 1220 1221 /** @hide */ 1222 @TestApi 1223 public String getIconFilename() { 1224 return mIconFilename; 1225 } 1226 1227 /** @hide */ 1228 public Bitmap getInMemoryIcon() { 1229 return mIcon; 1230 } 1231 1232 /** @hide */ 1233 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1234 if (iconFilename != null) { 1235 try { 1236 return getService().getTaskDescriptionIcon(iconFilename, 1237 userId); 1238 } catch (RemoteException e) { 1239 throw e.rethrowFromSystemServer(); 1240 } 1241 } 1242 return null; 1243 } 1244 1245 /** 1246 * @return The color override on the theme's primary color. 1247 */ 1248 public int getPrimaryColor() { 1249 return mColorPrimary; 1250 } 1251 1252 /** 1253 * @return The background color. 1254 * @hide 1255 */ 1256 public int getBackgroundColor() { 1257 return mColorBackground; 1258 } 1259 1260 /** 1261 * @hide 1262 */ 1263 public int getStatusBarColor() { 1264 return mStatusBarColor; 1265 } 1266 1267 /** 1268 * @hide 1269 */ 1270 public int getNavigationBarColor() { 1271 return mNavigationBarColor; 1272 } 1273 1274 /** @hide */ 1275 public void saveToXml(XmlSerializer out) throws IOException { 1276 if (mLabel != null) { 1277 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1278 } 1279 if (mColorPrimary != 0) { 1280 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1281 Integer.toHexString(mColorPrimary)); 1282 } 1283 if (mColorBackground != 0) { 1284 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1285 Integer.toHexString(mColorBackground)); 1286 } 1287 if (mIconFilename != null) { 1288 out.attribute(null, ATTR_TASKDESCRIPTIONICON_FILENAME, mIconFilename); 1289 } 1290 if (mIconRes != 0) { 1291 out.attribute(null, ATTR_TASKDESCRIPTIONICON_RESOURCE, Integer.toString(mIconRes)); 1292 } 1293 } 1294 1295 /** @hide */ 1296 public void restoreFromXml(String attrName, String attrValue) { 1297 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1298 setLabel(attrValue); 1299 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1300 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1301 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1302 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1303 } else if (ATTR_TASKDESCRIPTIONICON_FILENAME.equals(attrName)) { 1304 setIconFilename(attrValue); 1305 } else if (ATTR_TASKDESCRIPTIONICON_RESOURCE.equals(attrName)) { 1306 setIcon(Integer.parseInt(attrValue, 10)); 1307 } 1308 } 1309 1310 @Override 1311 public int describeContents() { 1312 return 0; 1313 } 1314 1315 @Override 1316 public void writeToParcel(Parcel dest, int flags) { 1317 if (mLabel == null) { 1318 dest.writeInt(0); 1319 } else { 1320 dest.writeInt(1); 1321 dest.writeString(mLabel); 1322 } 1323 if (mIcon == null) { 1324 dest.writeInt(0); 1325 } else { 1326 dest.writeInt(1); 1327 mIcon.writeToParcel(dest, 0); 1328 } 1329 dest.writeInt(mIconRes); 1330 dest.writeInt(mColorPrimary); 1331 dest.writeInt(mColorBackground); 1332 dest.writeInt(mStatusBarColor); 1333 dest.writeInt(mNavigationBarColor); 1334 if (mIconFilename == null) { 1335 dest.writeInt(0); 1336 } else { 1337 dest.writeInt(1); 1338 dest.writeString(mIconFilename); 1339 } 1340 } 1341 1342 public void readFromParcel(Parcel source) { 1343 mLabel = source.readInt() > 0 ? source.readString() : null; 1344 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1345 mIconRes = source.readInt(); 1346 mColorPrimary = source.readInt(); 1347 mColorBackground = source.readInt(); 1348 mStatusBarColor = source.readInt(); 1349 mNavigationBarColor = source.readInt(); 1350 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1351 } 1352 1353 public static final Creator<TaskDescription> CREATOR 1354 = new Creator<TaskDescription>() { 1355 public TaskDescription createFromParcel(Parcel source) { 1356 return new TaskDescription(source); 1357 } 1358 public TaskDescription[] newArray(int size) { 1359 return new TaskDescription[size]; 1360 } 1361 }; 1362 1363 @Override 1364 public String toString() { 1365 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1366 " IconRes: " + mIconRes + " IconFilename: " + mIconFilename + 1367 " colorPrimary: " + mColorPrimary + " colorBackground: " + mColorBackground + 1368 " statusBarColor: " + mColorBackground + 1369 " navigationBarColor: " + mNavigationBarColor; 1370 } 1371 } 1372 1373 /** 1374 * Information you can retrieve about tasks that the user has most recently 1375 * started or visited. 1376 */ 1377 public static class RecentTaskInfo implements Parcelable { 1378 /** 1379 * If this task is currently running, this is the identifier for it. 1380 * If it is not running, this will be -1. 1381 */ 1382 public int id; 1383 1384 /** 1385 * The true identifier of this task, valid even if it is not running. 1386 */ 1387 public int persistentId; 1388 1389 /** 1390 * The original Intent used to launch the task. You can use this 1391 * Intent to re-launch the task (if it is no longer running) or bring 1392 * the current task to the front. 1393 */ 1394 public Intent baseIntent; 1395 1396 /** 1397 * If this task was started from an alias, this is the actual 1398 * activity component that was initially started; the component of 1399 * the baseIntent in this case is the name of the actual activity 1400 * implementation that the alias referred to. Otherwise, this is null. 1401 */ 1402 public ComponentName origActivity; 1403 1404 /** 1405 * The actual activity component that started the task. 1406 * @hide 1407 */ 1408 @Nullable 1409 public ComponentName realActivity; 1410 1411 /** 1412 * Description of the task's last state. 1413 */ 1414 public CharSequence description; 1415 1416 /** 1417 * The id of the ActivityStack this Task was on most recently. 1418 * @hide 1419 */ 1420 public int stackId; 1421 1422 /** 1423 * The id of the user the task was running as. 1424 * @hide 1425 */ 1426 public int userId; 1427 1428 /** 1429 * The first time this task was active. 1430 * @hide 1431 */ 1432 public long firstActiveTime; 1433 1434 /** 1435 * The last time this task was active. 1436 * @hide 1437 */ 1438 public long lastActiveTime; 1439 1440 /** 1441 * The recent activity values for the highest activity in the stack to have set the values. 1442 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1443 */ 1444 public TaskDescription taskDescription; 1445 1446 /** 1447 * Task affiliation for grouping with other tasks. 1448 */ 1449 public int affiliatedTaskId; 1450 1451 /** 1452 * Task affiliation color of the source task with the affiliated task id. 1453 * 1454 * @hide 1455 */ 1456 public int affiliatedTaskColor; 1457 1458 /** 1459 * The component launched as the first activity in the task. 1460 * This can be considered the "application" of this task. 1461 */ 1462 public ComponentName baseActivity; 1463 1464 /** 1465 * The activity component at the top of the history stack of the task. 1466 * This is what the user is currently doing. 1467 */ 1468 public ComponentName topActivity; 1469 1470 /** 1471 * Number of activities in this task. 1472 */ 1473 public int numActivities; 1474 1475 /** 1476 * The bounds of the task. 1477 * @hide 1478 */ 1479 public Rect bounds; 1480 1481 /** 1482 * True if the task can go in the docked stack. 1483 * @hide 1484 */ 1485 public boolean supportsSplitScreenMultiWindow; 1486 1487 /** 1488 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1489 * @hide 1490 */ 1491 public int resizeMode; 1492 1493 /** 1494 * The current configuration this task is in. 1495 * @hide 1496 */ 1497 final public Configuration configuration = new Configuration(); 1498 1499 public RecentTaskInfo() { 1500 } 1501 1502 @Override 1503 public int describeContents() { 1504 return 0; 1505 } 1506 1507 @Override 1508 public void writeToParcel(Parcel dest, int flags) { 1509 dest.writeInt(id); 1510 dest.writeInt(persistentId); 1511 if (baseIntent != null) { 1512 dest.writeInt(1); 1513 baseIntent.writeToParcel(dest, 0); 1514 } else { 1515 dest.writeInt(0); 1516 } 1517 ComponentName.writeToParcel(origActivity, dest); 1518 ComponentName.writeToParcel(realActivity, dest); 1519 TextUtils.writeToParcel(description, dest, 1520 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1521 if (taskDescription != null) { 1522 dest.writeInt(1); 1523 taskDescription.writeToParcel(dest, 0); 1524 } else { 1525 dest.writeInt(0); 1526 } 1527 dest.writeInt(stackId); 1528 dest.writeInt(userId); 1529 dest.writeLong(lastActiveTime); 1530 dest.writeInt(affiliatedTaskId); 1531 dest.writeInt(affiliatedTaskColor); 1532 ComponentName.writeToParcel(baseActivity, dest); 1533 ComponentName.writeToParcel(topActivity, dest); 1534 dest.writeInt(numActivities); 1535 if (bounds != null) { 1536 dest.writeInt(1); 1537 bounds.writeToParcel(dest, 0); 1538 } else { 1539 dest.writeInt(0); 1540 } 1541 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1542 dest.writeInt(resizeMode); 1543 configuration.writeToParcel(dest, flags); 1544 } 1545 1546 public void readFromParcel(Parcel source) { 1547 id = source.readInt(); 1548 persistentId = source.readInt(); 1549 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1550 origActivity = ComponentName.readFromParcel(source); 1551 realActivity = ComponentName.readFromParcel(source); 1552 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1553 taskDescription = source.readInt() > 0 ? 1554 TaskDescription.CREATOR.createFromParcel(source) : null; 1555 stackId = source.readInt(); 1556 userId = source.readInt(); 1557 lastActiveTime = source.readLong(); 1558 affiliatedTaskId = source.readInt(); 1559 affiliatedTaskColor = source.readInt(); 1560 baseActivity = ComponentName.readFromParcel(source); 1561 topActivity = ComponentName.readFromParcel(source); 1562 numActivities = source.readInt(); 1563 bounds = source.readInt() > 0 ? 1564 Rect.CREATOR.createFromParcel(source) : null; 1565 supportsSplitScreenMultiWindow = source.readInt() == 1; 1566 resizeMode = source.readInt(); 1567 configuration.readFromParcel(source); 1568 } 1569 1570 public static final Creator<RecentTaskInfo> CREATOR 1571 = new Creator<RecentTaskInfo>() { 1572 public RecentTaskInfo createFromParcel(Parcel source) { 1573 return new RecentTaskInfo(source); 1574 } 1575 public RecentTaskInfo[] newArray(int size) { 1576 return new RecentTaskInfo[size]; 1577 } 1578 }; 1579 1580 private RecentTaskInfo(Parcel source) { 1581 readFromParcel(source); 1582 } 1583 } 1584 1585 /** 1586 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1587 * that have set their 1588 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1589 */ 1590 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1591 1592 /** 1593 * Provides a list that does not contain any 1594 * recent tasks that currently are not available to the user. 1595 */ 1596 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1597 1598 /** 1599 * <p></p>Return a list of the tasks that the user has recently launched, with 1600 * the most recent being first and older ones after in order. 1601 * 1602 * <p><b>Note: this method is only intended for debugging and presenting 1603 * task management user interfaces</b>. This should never be used for 1604 * core logic in an application, such as deciding between different 1605 * behaviors based on the information found here. Such uses are 1606 * <em>not</em> supported, and will likely break in the future. For 1607 * example, if multiple applications can be actively running at the 1608 * same time, assumptions made about the meaning of the data here for 1609 * purposes of control flow will be incorrect.</p> 1610 * 1611 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1612 * no longer available to third party applications: the introduction of 1613 * document-centric recents means 1614 * it can leak personal information to the caller. For backwards compatibility, 1615 * it will still return a small subset of its data: at least the caller's 1616 * own tasks (though see {@link #getAppTasks()} for the correct supported 1617 * way to retrieve that information), and possibly some other tasks 1618 * such as home that are known to not be sensitive. 1619 * 1620 * @param maxNum The maximum number of entries to return in the list. The 1621 * actual number returned may be smaller, depending on how many tasks the 1622 * user has started and the maximum number the system can remember. 1623 * @param flags Information about what to return. May be any combination 1624 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1625 * 1626 * @return Returns a list of RecentTaskInfo records describing each of 1627 * the recent tasks. 1628 */ 1629 @Deprecated 1630 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1631 throws SecurityException { 1632 try { 1633 if (maxNum < 0) { 1634 throw new IllegalArgumentException("The requested number of tasks should be >= 0"); 1635 } 1636 return getService().getRecentTasks(maxNum, flags, UserHandle.myUserId()).getList(); 1637 } catch (RemoteException e) { 1638 throw e.rethrowFromSystemServer(); 1639 } 1640 } 1641 1642 /** 1643 * Information you can retrieve about a particular task that is currently 1644 * "running" in the system. Note that a running task does not mean the 1645 * given task actually has a process it is actively running in; it simply 1646 * means that the user has gone to it and never closed it, but currently 1647 * the system may have killed its process and is only holding on to its 1648 * last state in order to restart it when the user returns. 1649 */ 1650 public static class RunningTaskInfo implements Parcelable { 1651 /** 1652 * A unique identifier for this task. 1653 */ 1654 public int id; 1655 1656 /** 1657 * The stack that currently contains this task. 1658 * @hide 1659 */ 1660 public int stackId; 1661 1662 /** 1663 * The component launched as the first activity in the task. This can 1664 * be considered the "application" of this task. 1665 */ 1666 public ComponentName baseActivity; 1667 1668 /** 1669 * The activity component at the top of the history stack of the task. 1670 * This is what the user is currently doing. 1671 */ 1672 public ComponentName topActivity; 1673 1674 /** 1675 * Thumbnail representation of the task's current state. Currently 1676 * always null. 1677 */ 1678 public Bitmap thumbnail; 1679 1680 /** 1681 * Description of the task's current state. 1682 */ 1683 public CharSequence description; 1684 1685 /** 1686 * Number of activities in this task. 1687 */ 1688 public int numActivities; 1689 1690 /** 1691 * Number of activities that are currently running (not stopped 1692 * and persisted) in this task. 1693 */ 1694 public int numRunning; 1695 1696 /** 1697 * Last time task was run. For sorting. 1698 * @hide 1699 */ 1700 public long lastActiveTime; 1701 1702 /** 1703 * True if the task can go in the docked stack. 1704 * @hide 1705 */ 1706 public boolean supportsSplitScreenMultiWindow; 1707 1708 /** 1709 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1710 * @hide 1711 */ 1712 public int resizeMode; 1713 1714 /** 1715 * The full configuration the task is currently running in. 1716 * @hide 1717 */ 1718 final public Configuration configuration = new Configuration(); 1719 1720 public RunningTaskInfo() { 1721 } 1722 1723 public int describeContents() { 1724 return 0; 1725 } 1726 1727 public void writeToParcel(Parcel dest, int flags) { 1728 dest.writeInt(id); 1729 dest.writeInt(stackId); 1730 ComponentName.writeToParcel(baseActivity, dest); 1731 ComponentName.writeToParcel(topActivity, dest); 1732 if (thumbnail != null) { 1733 dest.writeInt(1); 1734 thumbnail.writeToParcel(dest, 0); 1735 } else { 1736 dest.writeInt(0); 1737 } 1738 TextUtils.writeToParcel(description, dest, 1739 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1740 dest.writeInt(numActivities); 1741 dest.writeInt(numRunning); 1742 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1743 dest.writeInt(resizeMode); 1744 configuration.writeToParcel(dest, flags); 1745 } 1746 1747 public void readFromParcel(Parcel source) { 1748 id = source.readInt(); 1749 stackId = source.readInt(); 1750 baseActivity = ComponentName.readFromParcel(source); 1751 topActivity = ComponentName.readFromParcel(source); 1752 if (source.readInt() != 0) { 1753 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1754 } else { 1755 thumbnail = null; 1756 } 1757 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1758 numActivities = source.readInt(); 1759 numRunning = source.readInt(); 1760 supportsSplitScreenMultiWindow = source.readInt() != 0; 1761 resizeMode = source.readInt(); 1762 configuration.readFromParcel(source); 1763 } 1764 1765 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1766 public RunningTaskInfo createFromParcel(Parcel source) { 1767 return new RunningTaskInfo(source); 1768 } 1769 public RunningTaskInfo[] newArray(int size) { 1770 return new RunningTaskInfo[size]; 1771 } 1772 }; 1773 1774 private RunningTaskInfo(Parcel source) { 1775 readFromParcel(source); 1776 } 1777 } 1778 1779 /** 1780 * Get the list of tasks associated with the calling application. 1781 * 1782 * @return The list of tasks associated with the application making this call. 1783 * @throws SecurityException 1784 */ 1785 public List<ActivityManager.AppTask> getAppTasks() { 1786 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1787 List<IBinder> appTasks; 1788 try { 1789 appTasks = getService().getAppTasks(mContext.getPackageName()); 1790 } catch (RemoteException e) { 1791 throw e.rethrowFromSystemServer(); 1792 } 1793 int numAppTasks = appTasks.size(); 1794 for (int i = 0; i < numAppTasks; i++) { 1795 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1796 } 1797 return tasks; 1798 } 1799 1800 /** 1801 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1802 * with {@link #addAppTask}. 1803 */ 1804 public Size getAppTaskThumbnailSize() { 1805 synchronized (this) { 1806 ensureAppTaskThumbnailSizeLocked(); 1807 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1808 } 1809 } 1810 1811 private void ensureAppTaskThumbnailSizeLocked() { 1812 if (mAppTaskThumbnailSize == null) { 1813 try { 1814 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 1815 } catch (RemoteException e) { 1816 throw e.rethrowFromSystemServer(); 1817 } 1818 } 1819 } 1820 1821 /** 1822 * Add a new {@link AppTask} for the calling application. This will create a new 1823 * recents entry that is added to the <b>end</b> of all existing recents. 1824 * 1825 * @param activity The activity that is adding the entry. This is used to help determine 1826 * the context that the new recents entry will be in. 1827 * @param intent The Intent that describes the recents entry. This is the same Intent that 1828 * you would have used to launch the activity for it. In generally you will want to set 1829 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 1830 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 1831 * entry will exist without an activity, so it doesn't make sense to not retain it when 1832 * its activity disappears. The given Intent here also must have an explicit ComponentName 1833 * set on it. 1834 * @param description Optional additional description information. 1835 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 1836 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 1837 * recreated in your process, probably in a way you don't like, before the recents entry 1838 * is added. 1839 * 1840 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 1841 * most likely cause of failure is that there is no more room for more tasks for your app. 1842 */ 1843 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 1844 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 1845 Point size; 1846 synchronized (this) { 1847 ensureAppTaskThumbnailSizeLocked(); 1848 size = mAppTaskThumbnailSize; 1849 } 1850 final int tw = thumbnail.getWidth(); 1851 final int th = thumbnail.getHeight(); 1852 if (tw != size.x || th != size.y) { 1853 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 1854 1855 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 1856 float scale; 1857 float dx = 0, dy = 0; 1858 if (tw * size.x > size.y * th) { 1859 scale = (float) size.x / (float) th; 1860 dx = (size.y - tw * scale) * 0.5f; 1861 } else { 1862 scale = (float) size.y / (float) tw; 1863 dy = (size.x - th * scale) * 0.5f; 1864 } 1865 Matrix matrix = new Matrix(); 1866 matrix.setScale(scale, scale); 1867 matrix.postTranslate((int) (dx + 0.5f), 0); 1868 1869 Canvas canvas = new Canvas(bm); 1870 canvas.drawBitmap(thumbnail, matrix, null); 1871 canvas.setBitmap(null); 1872 1873 thumbnail = bm; 1874 } 1875 if (description == null) { 1876 description = new TaskDescription(); 1877 } 1878 try { 1879 return getService().addAppTask(activity.getActivityToken(), 1880 intent, description, thumbnail); 1881 } catch (RemoteException e) { 1882 throw e.rethrowFromSystemServer(); 1883 } 1884 } 1885 1886 /** 1887 * Return a list of the tasks that are currently running, with 1888 * the most recent being first and older ones after in order. Note that 1889 * "running" does not mean any of the task's code is currently loaded or 1890 * activity -- the task may have been frozen by the system, so that it 1891 * can be restarted in its previous state when next brought to the 1892 * foreground. 1893 * 1894 * <p><b>Note: this method is only intended for debugging and presenting 1895 * task management user interfaces</b>. This should never be used for 1896 * core logic in an application, such as deciding between different 1897 * behaviors based on the information found here. Such uses are 1898 * <em>not</em> supported, and will likely break in the future. For 1899 * example, if multiple applications can be actively running at the 1900 * same time, assumptions made about the meaning of the data here for 1901 * purposes of control flow will be incorrect.</p> 1902 * 1903 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 1904 * is no longer available to third party 1905 * applications: the introduction of document-centric recents means 1906 * it can leak person information to the caller. For backwards compatibility, 1907 * it will still return a small subset of its data: at least the caller's 1908 * own tasks, and possibly some other tasks 1909 * such as home that are known to not be sensitive. 1910 * 1911 * @param maxNum The maximum number of entries to return in the list. The 1912 * actual number returned may be smaller, depending on how many tasks the 1913 * user has started. 1914 * 1915 * @return Returns a list of RunningTaskInfo records describing each of 1916 * the running tasks. 1917 */ 1918 @Deprecated 1919 public List<RunningTaskInfo> getRunningTasks(int maxNum) 1920 throws SecurityException { 1921 try { 1922 return getService().getTasks(maxNum); 1923 } catch (RemoteException e) { 1924 throw e.rethrowFromSystemServer(); 1925 } 1926 } 1927 1928 /** 1929 * Sets the windowing mode for a specific task. Only works on tasks of type 1930 * {@link WindowConfiguration#ACTIVITY_TYPE_STANDARD} 1931 * @param taskId The id of the task to set the windowing mode for. 1932 * @param windowingMode The windowing mode to set for the task. 1933 * @param toTop If the task should be moved to the top once the windowing mode changes. 1934 * @hide 1935 */ 1936 @TestApi 1937 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 1938 public void setTaskWindowingMode(int taskId, int windowingMode, boolean toTop) 1939 throws SecurityException { 1940 try { 1941 getService().setTaskWindowingMode(taskId, windowingMode, toTop); 1942 } catch (RemoteException e) { 1943 throw e.rethrowFromSystemServer(); 1944 } 1945 } 1946 1947 /** 1948 * Moves the input task to the primary-split-screen stack. 1949 * @param taskId Id of task to move. 1950 * @param createMode The mode the primary split screen stack should be created in if it doesn't 1951 * exist already. See 1952 * {@link android.app.ActivityManager#SPLIT_SCREEN_CREATE_MODE_TOP_OR_LEFT} 1953 * and 1954 * {@link android.app.ActivityManager 1955 * #SPLIT_SCREEN_CREATE_MODE_BOTTOM_OR_RIGHT} 1956 * @param toTop If the task and stack should be moved to the top. 1957 * @param animate Whether we should play an animation for the moving the task 1958 * @param initialBounds If the primary stack gets created, it will use these bounds for the 1959 * docked stack. Pass {@code null} to use default bounds. 1960 * @param showRecents If the recents activity should be shown on the other side of the task 1961 * going into split-screen mode. 1962 * @hide 1963 */ 1964 @TestApi 1965 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 1966 public void setTaskWindowingModeSplitScreenPrimary(int taskId, int createMode, boolean toTop, 1967 boolean animate, Rect initialBounds, boolean showRecents) throws SecurityException { 1968 try { 1969 getService().setTaskWindowingModeSplitScreenPrimary(taskId, createMode, toTop, animate, 1970 initialBounds, showRecents); 1971 } catch (RemoteException e) { 1972 throw e.rethrowFromSystemServer(); 1973 } 1974 } 1975 1976 /** 1977 * Resizes the input stack id to the given bounds. 1978 * @param stackId Id of the stack to resize. 1979 * @param bounds Bounds to resize the stack to or {@code null} for fullscreen. 1980 * @hide 1981 */ 1982 @TestApi 1983 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 1984 public void resizeStack(int stackId, Rect bounds) throws SecurityException { 1985 try { 1986 getService().resizeStack(stackId, bounds, false /* allowResizeInDockedMode */, 1987 false /* preserveWindows */, false /* animate */, -1 /* animationDuration */); 1988 } catch (RemoteException e) { 1989 throw e.rethrowFromSystemServer(); 1990 } 1991 } 1992 1993 /** 1994 * Removes stacks in the windowing modes from the system if they are of activity type 1995 * ACTIVITY_TYPE_STANDARD or ACTIVITY_TYPE_UNDEFINED 1996 * 1997 * @hide 1998 */ 1999 @TestApi 2000 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2001 public void removeStacksInWindowingModes(int[] windowingModes) throws SecurityException { 2002 try { 2003 getService().removeStacksInWindowingModes(windowingModes); 2004 } catch (RemoteException e) { 2005 throw e.rethrowFromSystemServer(); 2006 } 2007 } 2008 2009 /** 2010 * Removes stack of the activity types from the system. 2011 * 2012 * @hide 2013 */ 2014 @TestApi 2015 @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) 2016 public void removeStacksWithActivityTypes(int[] activityTypes) throws SecurityException { 2017 try { 2018 getService().removeStacksWithActivityTypes(activityTypes); 2019 } catch (RemoteException e) { 2020 throw e.rethrowFromSystemServer(); 2021 } 2022 } 2023 2024 /** 2025 * Represents a task snapshot. 2026 * @hide 2027 */ 2028 public static class TaskSnapshot implements Parcelable { 2029 2030 private final GraphicBuffer mSnapshot; 2031 private final int mOrientation; 2032 private final Rect mContentInsets; 2033 private final boolean mReducedResolution; 2034 private final float mScale; 2035 2036 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2037 boolean reducedResolution, float scale) { 2038 mSnapshot = snapshot; 2039 mOrientation = orientation; 2040 mContentInsets = new Rect(contentInsets); 2041 mReducedResolution = reducedResolution; 2042 mScale = scale; 2043 } 2044 2045 private TaskSnapshot(Parcel source) { 2046 mSnapshot = source.readParcelable(null /* classLoader */); 2047 mOrientation = source.readInt(); 2048 mContentInsets = source.readParcelable(null /* classLoader */); 2049 mReducedResolution = source.readBoolean(); 2050 mScale = source.readFloat(); 2051 } 2052 2053 /** 2054 * @return The graphic buffer representing the screenshot. 2055 */ 2056 public GraphicBuffer getSnapshot() { 2057 return mSnapshot; 2058 } 2059 2060 /** 2061 * @return The screen orientation the screenshot was taken in. 2062 */ 2063 public int getOrientation() { 2064 return mOrientation; 2065 } 2066 2067 /** 2068 * @return The system/content insets on the snapshot. These can be clipped off in order to 2069 * remove any areas behind system bars in the snapshot. 2070 */ 2071 public Rect getContentInsets() { 2072 return mContentInsets; 2073 } 2074 2075 /** 2076 * @return Whether this snapshot is a down-sampled version of the full resolution. 2077 */ 2078 public boolean isReducedResolution() { 2079 return mReducedResolution; 2080 } 2081 2082 /** 2083 * @return The scale this snapshot was taken in. 2084 */ 2085 public float getScale() { 2086 return mScale; 2087 } 2088 2089 @Override 2090 public int describeContents() { 2091 return 0; 2092 } 2093 2094 @Override 2095 public void writeToParcel(Parcel dest, int flags) { 2096 dest.writeParcelable(mSnapshot, 0); 2097 dest.writeInt(mOrientation); 2098 dest.writeParcelable(mContentInsets, 0); 2099 dest.writeBoolean(mReducedResolution); 2100 dest.writeFloat(mScale); 2101 } 2102 2103 @Override 2104 public String toString() { 2105 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2106 + " mContentInsets=" + mContentInsets.toShortString() 2107 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2108 } 2109 2110 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2111 public TaskSnapshot createFromParcel(Parcel source) { 2112 return new TaskSnapshot(source); 2113 } 2114 public TaskSnapshot[] newArray(int size) { 2115 return new TaskSnapshot[size]; 2116 } 2117 }; 2118 } 2119 2120 /** @hide */ 2121 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2122 MOVE_TASK_WITH_HOME, 2123 MOVE_TASK_NO_USER_ACTION, 2124 }) 2125 @Retention(RetentionPolicy.SOURCE) 2126 public @interface MoveTaskFlags {} 2127 2128 /** 2129 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2130 * activity along with the task, so it is positioned immediately behind 2131 * the task. 2132 */ 2133 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2134 2135 /** 2136 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2137 * user-instigated action, so the current activity will not receive a 2138 * hint that the user is leaving. 2139 */ 2140 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2141 2142 /** 2143 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2144 * with a null options argument. 2145 * 2146 * @param taskId The identifier of the task to be moved, as found in 2147 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2148 * @param flags Additional operational flags. 2149 */ 2150 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2151 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2152 moveTaskToFront(taskId, flags, null); 2153 } 2154 2155 /** 2156 * Ask that the task associated with a given task ID be moved to the 2157 * front of the stack, so it is now visible to the user. 2158 * 2159 * @param taskId The identifier of the task to be moved, as found in 2160 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2161 * @param flags Additional operational flags. 2162 * @param options Additional options for the operation, either null or 2163 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2164 * Context.startActivity(Intent, Bundle)}. 2165 */ 2166 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2167 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2168 try { 2169 getService().moveTaskToFront(taskId, flags, options); 2170 } catch (RemoteException e) { 2171 throw e.rethrowFromSystemServer(); 2172 } 2173 } 2174 2175 /** 2176 * Information you can retrieve about a particular Service that is 2177 * currently running in the system. 2178 */ 2179 public static class RunningServiceInfo implements Parcelable { 2180 /** 2181 * The service component. 2182 */ 2183 public ComponentName service; 2184 2185 /** 2186 * If non-zero, this is the process the service is running in. 2187 */ 2188 public int pid; 2189 2190 /** 2191 * The UID that owns this service. 2192 */ 2193 public int uid; 2194 2195 /** 2196 * The name of the process this service runs in. 2197 */ 2198 public String process; 2199 2200 /** 2201 * Set to true if the service has asked to run as a foreground process. 2202 */ 2203 public boolean foreground; 2204 2205 /** 2206 * The time when the service was first made active, either by someone 2207 * starting or binding to it. This 2208 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2209 */ 2210 public long activeSince; 2211 2212 /** 2213 * Set to true if this service has been explicitly started. 2214 */ 2215 public boolean started; 2216 2217 /** 2218 * Number of clients connected to the service. 2219 */ 2220 public int clientCount; 2221 2222 /** 2223 * Number of times the service's process has crashed while the service 2224 * is running. 2225 */ 2226 public int crashCount; 2227 2228 /** 2229 * The time when there was last activity in the service (either 2230 * explicit requests to start it or clients binding to it). This 2231 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2232 */ 2233 public long lastActivityTime; 2234 2235 /** 2236 * If non-zero, this service is not currently running, but scheduled to 2237 * restart at the given time. 2238 */ 2239 public long restarting; 2240 2241 /** 2242 * Bit for {@link #flags}: set if this service has been 2243 * explicitly started. 2244 */ 2245 public static final int FLAG_STARTED = 1<<0; 2246 2247 /** 2248 * Bit for {@link #flags}: set if the service has asked to 2249 * run as a foreground process. 2250 */ 2251 public static final int FLAG_FOREGROUND = 1<<1; 2252 2253 /** 2254 * Bit for {@link #flags}: set if the service is running in a 2255 * core system process. 2256 */ 2257 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2258 2259 /** 2260 * Bit for {@link #flags}: set if the service is running in a 2261 * persistent process. 2262 */ 2263 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2264 2265 /** 2266 * Running flags. 2267 */ 2268 public int flags; 2269 2270 /** 2271 * For special services that are bound to by system code, this is 2272 * the package that holds the binding. 2273 */ 2274 public String clientPackage; 2275 2276 /** 2277 * For special services that are bound to by system code, this is 2278 * a string resource providing a user-visible label for who the 2279 * client is. 2280 */ 2281 public int clientLabel; 2282 2283 public RunningServiceInfo() { 2284 } 2285 2286 public int describeContents() { 2287 return 0; 2288 } 2289 2290 public void writeToParcel(Parcel dest, int flags) { 2291 ComponentName.writeToParcel(service, dest); 2292 dest.writeInt(pid); 2293 dest.writeInt(uid); 2294 dest.writeString(process); 2295 dest.writeInt(foreground ? 1 : 0); 2296 dest.writeLong(activeSince); 2297 dest.writeInt(started ? 1 : 0); 2298 dest.writeInt(clientCount); 2299 dest.writeInt(crashCount); 2300 dest.writeLong(lastActivityTime); 2301 dest.writeLong(restarting); 2302 dest.writeInt(this.flags); 2303 dest.writeString(clientPackage); 2304 dest.writeInt(clientLabel); 2305 } 2306 2307 public void readFromParcel(Parcel source) { 2308 service = ComponentName.readFromParcel(source); 2309 pid = source.readInt(); 2310 uid = source.readInt(); 2311 process = source.readString(); 2312 foreground = source.readInt() != 0; 2313 activeSince = source.readLong(); 2314 started = source.readInt() != 0; 2315 clientCount = source.readInt(); 2316 crashCount = source.readInt(); 2317 lastActivityTime = source.readLong(); 2318 restarting = source.readLong(); 2319 flags = source.readInt(); 2320 clientPackage = source.readString(); 2321 clientLabel = source.readInt(); 2322 } 2323 2324 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2325 public RunningServiceInfo createFromParcel(Parcel source) { 2326 return new RunningServiceInfo(source); 2327 } 2328 public RunningServiceInfo[] newArray(int size) { 2329 return new RunningServiceInfo[size]; 2330 } 2331 }; 2332 2333 private RunningServiceInfo(Parcel source) { 2334 readFromParcel(source); 2335 } 2336 } 2337 2338 /** 2339 * Return a list of the services that are currently running. 2340 * 2341 * <p><b>Note: this method is only intended for debugging or implementing 2342 * service management type user interfaces.</b></p> 2343 * 2344 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2345 * is no longer available to third party applications. For backwards compatibility, 2346 * it will still return the caller's own services. 2347 * 2348 * @param maxNum The maximum number of entries to return in the list. The 2349 * actual number returned may be smaller, depending on how many services 2350 * are running. 2351 * 2352 * @return Returns a list of RunningServiceInfo records describing each of 2353 * the running tasks. 2354 */ 2355 @Deprecated 2356 public List<RunningServiceInfo> getRunningServices(int maxNum) 2357 throws SecurityException { 2358 try { 2359 return getService() 2360 .getServices(maxNum, 0); 2361 } catch (RemoteException e) { 2362 throw e.rethrowFromSystemServer(); 2363 } 2364 } 2365 2366 /** 2367 * Returns a PendingIntent you can start to show a control panel for the 2368 * given running service. If the service does not have a control panel, 2369 * null is returned. 2370 */ 2371 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2372 throws SecurityException { 2373 try { 2374 return getService() 2375 .getRunningServiceControlPanel(service); 2376 } catch (RemoteException e) { 2377 throw e.rethrowFromSystemServer(); 2378 } 2379 } 2380 2381 /** 2382 * Information you can retrieve about the available memory through 2383 * {@link ActivityManager#getMemoryInfo}. 2384 */ 2385 public static class MemoryInfo implements Parcelable { 2386 /** 2387 * The available memory on the system. This number should not 2388 * be considered absolute: due to the nature of the kernel, a significant 2389 * portion of this memory is actually in use and needed for the overall 2390 * system to run well. 2391 */ 2392 public long availMem; 2393 2394 /** 2395 * The total memory accessible by the kernel. This is basically the 2396 * RAM size of the device, not including below-kernel fixed allocations 2397 * like DMA buffers, RAM for the baseband CPU, etc. 2398 */ 2399 public long totalMem; 2400 2401 /** 2402 * The threshold of {@link #availMem} at which we consider memory to be 2403 * low and start killing background services and other non-extraneous 2404 * processes. 2405 */ 2406 public long threshold; 2407 2408 /** 2409 * Set to true if the system considers itself to currently be in a low 2410 * memory situation. 2411 */ 2412 public boolean lowMemory; 2413 2414 /** @hide */ 2415 public long hiddenAppThreshold; 2416 /** @hide */ 2417 public long secondaryServerThreshold; 2418 /** @hide */ 2419 public long visibleAppThreshold; 2420 /** @hide */ 2421 public long foregroundAppThreshold; 2422 2423 public MemoryInfo() { 2424 } 2425 2426 public int describeContents() { 2427 return 0; 2428 } 2429 2430 public void writeToParcel(Parcel dest, int flags) { 2431 dest.writeLong(availMem); 2432 dest.writeLong(totalMem); 2433 dest.writeLong(threshold); 2434 dest.writeInt(lowMemory ? 1 : 0); 2435 dest.writeLong(hiddenAppThreshold); 2436 dest.writeLong(secondaryServerThreshold); 2437 dest.writeLong(visibleAppThreshold); 2438 dest.writeLong(foregroundAppThreshold); 2439 } 2440 2441 public void readFromParcel(Parcel source) { 2442 availMem = source.readLong(); 2443 totalMem = source.readLong(); 2444 threshold = source.readLong(); 2445 lowMemory = source.readInt() != 0; 2446 hiddenAppThreshold = source.readLong(); 2447 secondaryServerThreshold = source.readLong(); 2448 visibleAppThreshold = source.readLong(); 2449 foregroundAppThreshold = source.readLong(); 2450 } 2451 2452 public static final Creator<MemoryInfo> CREATOR 2453 = new Creator<MemoryInfo>() { 2454 public MemoryInfo createFromParcel(Parcel source) { 2455 return new MemoryInfo(source); 2456 } 2457 public MemoryInfo[] newArray(int size) { 2458 return new MemoryInfo[size]; 2459 } 2460 }; 2461 2462 private MemoryInfo(Parcel source) { 2463 readFromParcel(source); 2464 } 2465 } 2466 2467 /** 2468 * Return general information about the memory state of the system. This 2469 * can be used to help decide how to manage your own memory, though note 2470 * that polling is not recommended and 2471 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2472 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2473 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2474 * level of your process as needed, which gives a better hint for how to 2475 * manage its memory. 2476 */ 2477 public void getMemoryInfo(MemoryInfo outInfo) { 2478 try { 2479 getService().getMemoryInfo(outInfo); 2480 } catch (RemoteException e) { 2481 throw e.rethrowFromSystemServer(); 2482 } 2483 } 2484 2485 /** 2486 * Information you can retrieve about an ActivityStack in the system. 2487 * @hide 2488 */ 2489 public static class StackInfo implements Parcelable { 2490 public int stackId; 2491 public Rect bounds = new Rect(); 2492 public int[] taskIds; 2493 public String[] taskNames; 2494 public Rect[] taskBounds; 2495 public int[] taskUserIds; 2496 public ComponentName topActivity; 2497 public int displayId; 2498 public int userId; 2499 public boolean visible; 2500 // Index of the stack in the display's stack list, can be used for comparison of stack order 2501 public int position; 2502 /** 2503 * The full configuration the stack is currently running in. 2504 * @hide 2505 */ 2506 final public Configuration configuration = new Configuration(); 2507 2508 @Override 2509 public int describeContents() { 2510 return 0; 2511 } 2512 2513 @Override 2514 public void writeToParcel(Parcel dest, int flags) { 2515 dest.writeInt(stackId); 2516 dest.writeInt(bounds.left); 2517 dest.writeInt(bounds.top); 2518 dest.writeInt(bounds.right); 2519 dest.writeInt(bounds.bottom); 2520 dest.writeIntArray(taskIds); 2521 dest.writeStringArray(taskNames); 2522 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2523 dest.writeInt(boundsCount); 2524 for (int i = 0; i < boundsCount; i++) { 2525 dest.writeInt(taskBounds[i].left); 2526 dest.writeInt(taskBounds[i].top); 2527 dest.writeInt(taskBounds[i].right); 2528 dest.writeInt(taskBounds[i].bottom); 2529 } 2530 dest.writeIntArray(taskUserIds); 2531 dest.writeInt(displayId); 2532 dest.writeInt(userId); 2533 dest.writeInt(visible ? 1 : 0); 2534 dest.writeInt(position); 2535 if (topActivity != null) { 2536 dest.writeInt(1); 2537 topActivity.writeToParcel(dest, 0); 2538 } else { 2539 dest.writeInt(0); 2540 } 2541 configuration.writeToParcel(dest, flags); 2542 } 2543 2544 public void readFromParcel(Parcel source) { 2545 stackId = source.readInt(); 2546 bounds = new Rect( 2547 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2548 taskIds = source.createIntArray(); 2549 taskNames = source.createStringArray(); 2550 final int boundsCount = source.readInt(); 2551 if (boundsCount > 0) { 2552 taskBounds = new Rect[boundsCount]; 2553 for (int i = 0; i < boundsCount; i++) { 2554 taskBounds[i] = new Rect(); 2555 taskBounds[i].set( 2556 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2557 } 2558 } else { 2559 taskBounds = null; 2560 } 2561 taskUserIds = source.createIntArray(); 2562 displayId = source.readInt(); 2563 userId = source.readInt(); 2564 visible = source.readInt() > 0; 2565 position = source.readInt(); 2566 if (source.readInt() > 0) { 2567 topActivity = ComponentName.readFromParcel(source); 2568 } 2569 configuration.readFromParcel(source); 2570 } 2571 2572 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2573 @Override 2574 public StackInfo createFromParcel(Parcel source) { 2575 return new StackInfo(source); 2576 } 2577 @Override 2578 public StackInfo[] newArray(int size) { 2579 return new StackInfo[size]; 2580 } 2581 }; 2582 2583 public StackInfo() { 2584 } 2585 2586 private StackInfo(Parcel source) { 2587 readFromParcel(source); 2588 } 2589 2590 public String toString(String prefix) { 2591 StringBuilder sb = new StringBuilder(256); 2592 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2593 sb.append(" bounds="); sb.append(bounds.toShortString()); 2594 sb.append(" displayId="); sb.append(displayId); 2595 sb.append(" userId="); sb.append(userId); 2596 sb.append("\n"); 2597 sb.append(" configuration="); sb.append(configuration); 2598 sb.append("\n"); 2599 prefix = prefix + " "; 2600 for (int i = 0; i < taskIds.length; ++i) { 2601 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2602 sb.append(": "); sb.append(taskNames[i]); 2603 if (taskBounds != null) { 2604 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2605 } 2606 sb.append(" userId=").append(taskUserIds[i]); 2607 sb.append(" visible=").append(visible); 2608 if (topActivity != null) { 2609 sb.append(" topActivity=").append(topActivity); 2610 } 2611 sb.append("\n"); 2612 } 2613 return sb.toString(); 2614 } 2615 2616 @Override 2617 public String toString() { 2618 return toString(""); 2619 } 2620 } 2621 2622 /** 2623 * @hide 2624 */ 2625 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2626 Manifest.permission.ACCESS_INSTANT_APPS}) 2627 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2628 try { 2629 return getService().clearApplicationUserData(packageName, false, 2630 observer, UserHandle.myUserId()); 2631 } catch (RemoteException e) { 2632 throw e.rethrowFromSystemServer(); 2633 } 2634 } 2635 2636 /** 2637 * Permits an application to erase its own data from disk. This is equivalent to 2638 * the user choosing to clear the app's data from within the device settings UI. It 2639 * erases all dynamic data associated with the app -- its private data and data in its 2640 * private area on external storage -- but does not remove the installed application 2641 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2642 * clears all notifications and removes all Uri grants related to this application. 2643 * 2644 * @return {@code true} if the application successfully requested that the application's 2645 * data be erased; {@code false} otherwise. 2646 */ 2647 public boolean clearApplicationUserData() { 2648 return clearApplicationUserData(mContext.getPackageName(), null); 2649 } 2650 2651 2652 /** 2653 * Permits an application to get the persistent URI permissions granted to another. 2654 * 2655 * <p>Typically called by Settings. 2656 * 2657 * @param packageName application to look for the granted permissions 2658 * @return list of granted URI permissions 2659 * 2660 * @hide 2661 */ 2662 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2663 try { 2664 return getService().getGrantedUriPermissions(packageName, 2665 UserHandle.myUserId()); 2666 } catch (RemoteException e) { 2667 throw e.rethrowFromSystemServer(); 2668 } 2669 } 2670 2671 /** 2672 * Permits an application to clear the persistent URI permissions granted to another. 2673 * 2674 * <p>Typically called by Settings. 2675 * 2676 * @param packageName application to clear its granted permissions 2677 * 2678 * @hide 2679 */ 2680 public void clearGrantedUriPermissions(String packageName) { 2681 try { 2682 getService().clearGrantedUriPermissions(packageName, 2683 UserHandle.myUserId()); 2684 } catch (RemoteException e) { 2685 throw e.rethrowFromSystemServer(); 2686 } 2687 } 2688 2689 /** 2690 * Information you can retrieve about any processes that are in an error condition. 2691 */ 2692 public static class ProcessErrorStateInfo implements Parcelable { 2693 /** 2694 * Condition codes 2695 */ 2696 public static final int NO_ERROR = 0; 2697 public static final int CRASHED = 1; 2698 public static final int NOT_RESPONDING = 2; 2699 2700 /** 2701 * The condition that the process is in. 2702 */ 2703 public int condition; 2704 2705 /** 2706 * The process name in which the crash or error occurred. 2707 */ 2708 public String processName; 2709 2710 /** 2711 * The pid of this process; 0 if none 2712 */ 2713 public int pid; 2714 2715 /** 2716 * The kernel user-ID that has been assigned to this process; 2717 * currently this is not a unique ID (multiple applications can have 2718 * the same uid). 2719 */ 2720 public int uid; 2721 2722 /** 2723 * The activity name associated with the error, if known. May be null. 2724 */ 2725 public String tag; 2726 2727 /** 2728 * A short message describing the error condition. 2729 */ 2730 public String shortMsg; 2731 2732 /** 2733 * A long message describing the error condition. 2734 */ 2735 public String longMsg; 2736 2737 /** 2738 * The stack trace where the error originated. May be null. 2739 */ 2740 public String stackTrace; 2741 2742 /** 2743 * to be deprecated: This value will always be null. 2744 */ 2745 public byte[] crashData = null; 2746 2747 public ProcessErrorStateInfo() { 2748 } 2749 2750 @Override 2751 public int describeContents() { 2752 return 0; 2753 } 2754 2755 @Override 2756 public void writeToParcel(Parcel dest, int flags) { 2757 dest.writeInt(condition); 2758 dest.writeString(processName); 2759 dest.writeInt(pid); 2760 dest.writeInt(uid); 2761 dest.writeString(tag); 2762 dest.writeString(shortMsg); 2763 dest.writeString(longMsg); 2764 dest.writeString(stackTrace); 2765 } 2766 2767 public void readFromParcel(Parcel source) { 2768 condition = source.readInt(); 2769 processName = source.readString(); 2770 pid = source.readInt(); 2771 uid = source.readInt(); 2772 tag = source.readString(); 2773 shortMsg = source.readString(); 2774 longMsg = source.readString(); 2775 stackTrace = source.readString(); 2776 } 2777 2778 public static final Creator<ProcessErrorStateInfo> CREATOR = 2779 new Creator<ProcessErrorStateInfo>() { 2780 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2781 return new ProcessErrorStateInfo(source); 2782 } 2783 public ProcessErrorStateInfo[] newArray(int size) { 2784 return new ProcessErrorStateInfo[size]; 2785 } 2786 }; 2787 2788 private ProcessErrorStateInfo(Parcel source) { 2789 readFromParcel(source); 2790 } 2791 } 2792 2793 /** 2794 * Returns a list of any processes that are currently in an error condition. The result 2795 * will be null if all processes are running properly at this time. 2796 * 2797 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2798 * current error conditions (it will not return an empty list). This list ordering is not 2799 * specified. 2800 */ 2801 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2802 try { 2803 return getService().getProcessesInErrorState(); 2804 } catch (RemoteException e) { 2805 throw e.rethrowFromSystemServer(); 2806 } 2807 } 2808 2809 /** 2810 * Information you can retrieve about a running process. 2811 */ 2812 public static class RunningAppProcessInfo implements Parcelable { 2813 /** 2814 * The name of the process that this object is associated with 2815 */ 2816 public String processName; 2817 2818 /** 2819 * The pid of this process; 0 if none 2820 */ 2821 public int pid; 2822 2823 /** 2824 * The user id of this process. 2825 */ 2826 public int uid; 2827 2828 /** 2829 * All packages that have been loaded into the process. 2830 */ 2831 public String pkgList[]; 2832 2833 /** 2834 * Constant for {@link #flags}: this is an app that is unable to 2835 * correctly save its state when going to the background, 2836 * so it can not be killed while in the background. 2837 * @hide 2838 */ 2839 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2840 2841 /** 2842 * Constant for {@link #flags}: this process is associated with a 2843 * persistent system app. 2844 * @hide 2845 */ 2846 public static final int FLAG_PERSISTENT = 1<<1; 2847 2848 /** 2849 * Constant for {@link #flags}: this process is associated with a 2850 * persistent system app. 2851 * @hide 2852 */ 2853 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2854 2855 /** 2856 * Flags of information. May be any of 2857 * {@link #FLAG_CANT_SAVE_STATE}. 2858 * @hide 2859 */ 2860 public int flags; 2861 2862 /** 2863 * Last memory trim level reported to the process: corresponds to 2864 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2865 * ComponentCallbacks2.onTrimMemory(int)}. 2866 */ 2867 public int lastTrimLevel; 2868 2869 /** @hide */ 2870 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2871 IMPORTANCE_FOREGROUND, 2872 IMPORTANCE_FOREGROUND_SERVICE, 2873 IMPORTANCE_TOP_SLEEPING, 2874 IMPORTANCE_VISIBLE, 2875 IMPORTANCE_PERCEPTIBLE, 2876 IMPORTANCE_CANT_SAVE_STATE, 2877 IMPORTANCE_SERVICE, 2878 IMPORTANCE_CACHED, 2879 IMPORTANCE_GONE, 2880 }) 2881 @Retention(RetentionPolicy.SOURCE) 2882 public @interface Importance {} 2883 2884 /** 2885 * Constant for {@link #importance}: This process is running the 2886 * foreground UI; that is, it is the thing currently at the top of the screen 2887 * that the user is interacting with. 2888 */ 2889 public static final int IMPORTANCE_FOREGROUND = 100; 2890 2891 /** 2892 * Constant for {@link #importance}: This process is running a foreground 2893 * service, for example to perform music playback even while the user is 2894 * not immediately in the app. This generally indicates that the process 2895 * is doing something the user actively cares about. 2896 */ 2897 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 2898 2899 /** 2900 * Constant for {@link #importance}: This process is running the foreground 2901 * UI, but the device is asleep so it is not visible to the user. This means 2902 * the user is not really aware of the process, because they can not see or 2903 * interact with it, but it is quite important because it what they expect to 2904 * return to once unlocking the device. 2905 */ 2906 public static final int IMPORTANCE_TOP_SLEEPING = 150; 2907 2908 /** 2909 * Constant for {@link #importance}: This process is running something 2910 * that is actively visible to the user, though not in the immediate 2911 * foreground. This may be running a window that is behind the current 2912 * foreground (so paused and with its state saved, not interacting with 2913 * the user, but visible to them to some degree); it may also be running 2914 * other services under the system's control that it inconsiders important. 2915 */ 2916 public static final int IMPORTANCE_VISIBLE = 200; 2917 2918 /** 2919 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 2920 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2921 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 2922 * 2923 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 2924 * on Android versions below {@link Build.VERSION_CODES#O}. 2925 * 2926 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 2927 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2928 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2929 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 2930 */ 2931 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 2932 2933 /** 2934 * Constant for {@link #importance}: This process is not something the user 2935 * is directly aware of, but is otherwise perceptible to them to some degree. 2936 */ 2937 public static final int IMPORTANCE_PERCEPTIBLE = 230; 2938 2939 /** 2940 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 2941 * this wrong value 2942 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 2943 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 2944 * 2945 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 2946 * on Android versions below {@link Build.VERSION_CODES#O}. 2947 * 2948 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 2949 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 2950 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 2951 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 2952 * 2953 * @hide 2954 */ 2955 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 2956 2957 /** 2958 * Constant for {@link #importance}: This process is contains services 2959 * that should remain running. These are background services apps have 2960 * started, not something the user is aware of, so they may be killed by 2961 * the system relatively freely (though it is generally desired that they 2962 * stay running as long as they want to). 2963 */ 2964 public static final int IMPORTANCE_SERVICE = 300; 2965 2966 /** 2967 * Constant for {@link #importance}: This process is running an 2968 * application that can not save its state, and thus can't be killed 2969 * while in the background. This will be used with apps that have 2970 * {@link android.R.attr#cantSaveState} set on their application tag. 2971 */ 2972 public static final int IMPORTANCE_CANT_SAVE_STATE = 350; 2973 2974 /** 2975 * Constant for {@link #importance}: This process process contains 2976 * cached code that is expendable, not actively running any app components 2977 * we care about. 2978 */ 2979 public static final int IMPORTANCE_CACHED = 400; 2980 2981 /** 2982 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 2983 */ 2984 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 2985 2986 /** 2987 * Constant for {@link #importance}: This process is empty of any 2988 * actively running code. 2989 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 2990 */ 2991 @Deprecated 2992 public static final int IMPORTANCE_EMPTY = 500; 2993 2994 /** 2995 * Constant for {@link #importance}: This process does not exist. 2996 */ 2997 public static final int IMPORTANCE_GONE = 1000; 2998 2999 /** 3000 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3001 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3002 * @hide 3003 */ 3004 public static @Importance int procStateToImportance(int procState) { 3005 if (procState == PROCESS_STATE_NONEXISTENT) { 3006 return IMPORTANCE_GONE; 3007 } else if (procState >= PROCESS_STATE_HOME) { 3008 return IMPORTANCE_CACHED; 3009 } else if (procState == PROCESS_STATE_HEAVY_WEIGHT) { 3010 return IMPORTANCE_CANT_SAVE_STATE; 3011 } else if (procState >= PROCESS_STATE_SERVICE) { 3012 return IMPORTANCE_SERVICE; 3013 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3014 return IMPORTANCE_PERCEPTIBLE; 3015 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3016 return IMPORTANCE_VISIBLE; 3017 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3018 return IMPORTANCE_TOP_SLEEPING; 3019 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3020 return IMPORTANCE_FOREGROUND_SERVICE; 3021 } else { 3022 return IMPORTANCE_FOREGROUND; 3023 } 3024 } 3025 3026 /** 3027 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3028 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3029 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3030 * client's target SDK < {@link VERSION_CODES#O}. 3031 * @hide 3032 */ 3033 public static @Importance int procStateToImportanceForClient(int procState, 3034 Context clientContext) { 3035 return procStateToImportanceForTargetSdk(procState, 3036 clientContext.getApplicationInfo().targetSdkVersion); 3037 } 3038 3039 /** 3040 * See {@link #procStateToImportanceForClient}. 3041 * @hide 3042 */ 3043 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3044 int targetSdkVersion) { 3045 final int importance = procStateToImportance(procState); 3046 3047 // For pre O apps, convert to the old, wrong values. 3048 if (targetSdkVersion < VERSION_CODES.O) { 3049 switch (importance) { 3050 case IMPORTANCE_PERCEPTIBLE: 3051 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3052 case IMPORTANCE_CANT_SAVE_STATE: 3053 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3054 } 3055 } 3056 return importance; 3057 } 3058 3059 /** @hide */ 3060 public static int importanceToProcState(@Importance int importance) { 3061 if (importance == IMPORTANCE_GONE) { 3062 return PROCESS_STATE_NONEXISTENT; 3063 } else if (importance >= IMPORTANCE_CACHED) { 3064 return PROCESS_STATE_HOME; 3065 } else if (importance == IMPORTANCE_CANT_SAVE_STATE) { 3066 return PROCESS_STATE_HEAVY_WEIGHT; 3067 } else if (importance >= IMPORTANCE_SERVICE) { 3068 return PROCESS_STATE_SERVICE; 3069 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3070 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3071 } else if (importance >= IMPORTANCE_VISIBLE) { 3072 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3073 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3074 return PROCESS_STATE_TOP_SLEEPING; 3075 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3076 return PROCESS_STATE_FOREGROUND_SERVICE; 3077 } else { 3078 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3079 } 3080 } 3081 3082 /** 3083 * The relative importance level that the system places on this process. 3084 * These constants are numbered so that "more important" values are 3085 * always smaller than "less important" values. 3086 */ 3087 public @Importance int importance; 3088 3089 /** 3090 * An additional ordering within a particular {@link #importance} 3091 * category, providing finer-grained information about the relative 3092 * utility of processes within a category. This number means nothing 3093 * except that a smaller values are more recently used (and thus 3094 * more important). Currently an LRU value is only maintained for 3095 * the {@link #IMPORTANCE_CACHED} category, though others may 3096 * be maintained in the future. 3097 */ 3098 public int lru; 3099 3100 /** 3101 * Constant for {@link #importanceReasonCode}: nothing special has 3102 * been specified for the reason for this level. 3103 */ 3104 public static final int REASON_UNKNOWN = 0; 3105 3106 /** 3107 * Constant for {@link #importanceReasonCode}: one of the application's 3108 * content providers is being used by another process. The pid of 3109 * the client process is in {@link #importanceReasonPid} and the 3110 * target provider in this process is in 3111 * {@link #importanceReasonComponent}. 3112 */ 3113 public static final int REASON_PROVIDER_IN_USE = 1; 3114 3115 /** 3116 * Constant for {@link #importanceReasonCode}: one of the application's 3117 * content providers is being used by another process. The pid of 3118 * the client process is in {@link #importanceReasonPid} and the 3119 * target provider in this process is in 3120 * {@link #importanceReasonComponent}. 3121 */ 3122 public static final int REASON_SERVICE_IN_USE = 2; 3123 3124 /** 3125 * The reason for {@link #importance}, if any. 3126 */ 3127 public int importanceReasonCode; 3128 3129 /** 3130 * For the specified values of {@link #importanceReasonCode}, this 3131 * is the process ID of the other process that is a client of this 3132 * process. This will be 0 if no other process is using this one. 3133 */ 3134 public int importanceReasonPid; 3135 3136 /** 3137 * For the specified values of {@link #importanceReasonCode}, this 3138 * is the name of the component that is being used in this process. 3139 */ 3140 public ComponentName importanceReasonComponent; 3141 3142 /** 3143 * When {@link #importanceReasonPid} is non-0, this is the importance 3144 * of the other pid. @hide 3145 */ 3146 public int importanceReasonImportance; 3147 3148 /** 3149 * Current process state, as per PROCESS_STATE_* constants. 3150 * @hide 3151 */ 3152 public int processState; 3153 3154 public RunningAppProcessInfo() { 3155 importance = IMPORTANCE_FOREGROUND; 3156 importanceReasonCode = REASON_UNKNOWN; 3157 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3158 } 3159 3160 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3161 processName = pProcessName; 3162 pid = pPid; 3163 pkgList = pArr; 3164 } 3165 3166 public int describeContents() { 3167 return 0; 3168 } 3169 3170 public void writeToParcel(Parcel dest, int flags) { 3171 dest.writeString(processName); 3172 dest.writeInt(pid); 3173 dest.writeInt(uid); 3174 dest.writeStringArray(pkgList); 3175 dest.writeInt(this.flags); 3176 dest.writeInt(lastTrimLevel); 3177 dest.writeInt(importance); 3178 dest.writeInt(lru); 3179 dest.writeInt(importanceReasonCode); 3180 dest.writeInt(importanceReasonPid); 3181 ComponentName.writeToParcel(importanceReasonComponent, dest); 3182 dest.writeInt(importanceReasonImportance); 3183 dest.writeInt(processState); 3184 } 3185 3186 public void readFromParcel(Parcel source) { 3187 processName = source.readString(); 3188 pid = source.readInt(); 3189 uid = source.readInt(); 3190 pkgList = source.readStringArray(); 3191 flags = source.readInt(); 3192 lastTrimLevel = source.readInt(); 3193 importance = source.readInt(); 3194 lru = source.readInt(); 3195 importanceReasonCode = source.readInt(); 3196 importanceReasonPid = source.readInt(); 3197 importanceReasonComponent = ComponentName.readFromParcel(source); 3198 importanceReasonImportance = source.readInt(); 3199 processState = source.readInt(); 3200 } 3201 3202 public static final Creator<RunningAppProcessInfo> CREATOR = 3203 new Creator<RunningAppProcessInfo>() { 3204 public RunningAppProcessInfo createFromParcel(Parcel source) { 3205 return new RunningAppProcessInfo(source); 3206 } 3207 public RunningAppProcessInfo[] newArray(int size) { 3208 return new RunningAppProcessInfo[size]; 3209 } 3210 }; 3211 3212 private RunningAppProcessInfo(Parcel source) { 3213 readFromParcel(source); 3214 } 3215 } 3216 3217 /** 3218 * Returns a list of application processes installed on external media 3219 * that are running on the device. 3220 * 3221 * <p><b>Note: this method is only intended for debugging or building 3222 * a user-facing process management UI.</b></p> 3223 * 3224 * @return Returns a list of ApplicationInfo records, or null if none 3225 * This list ordering is not specified. 3226 * @hide 3227 */ 3228 public List<ApplicationInfo> getRunningExternalApplications() { 3229 try { 3230 return getService().getRunningExternalApplications(); 3231 } catch (RemoteException e) { 3232 throw e.rethrowFromSystemServer(); 3233 } 3234 } 3235 3236 /** 3237 * Sets the memory trim mode for a process and schedules a memory trim operation. 3238 * 3239 * <p><b>Note: this method is only intended for testing framework.</b></p> 3240 * 3241 * @return Returns true if successful. 3242 * @hide 3243 */ 3244 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3245 try { 3246 return getService().setProcessMemoryTrimLevel(process, userId, 3247 level); 3248 } catch (RemoteException e) { 3249 throw e.rethrowFromSystemServer(); 3250 } 3251 } 3252 3253 /** 3254 * Returns a list of application processes that are running on the device. 3255 * 3256 * <p><b>Note: this method is only intended for debugging or building 3257 * a user-facing process management UI.</b></p> 3258 * 3259 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3260 * running processes (it will not return an empty list). This list ordering is not 3261 * specified. 3262 */ 3263 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3264 try { 3265 return getService().getRunningAppProcesses(); 3266 } catch (RemoteException e) { 3267 throw e.rethrowFromSystemServer(); 3268 } 3269 } 3270 3271 /** 3272 * Return the importance of a given package name, based on the processes that are 3273 * currently running. The return value is one of the importance constants defined 3274 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3275 * processes that this package has code running inside of. If there are no processes 3276 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3277 * @hide 3278 */ 3279 @SystemApi @TestApi 3280 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3281 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3282 try { 3283 int procState = getService().getPackageProcessState(packageName, 3284 mContext.getOpPackageName()); 3285 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3286 } catch (RemoteException e) { 3287 throw e.rethrowFromSystemServer(); 3288 } 3289 } 3290 3291 /** 3292 * Return the importance of a given uid, based on the processes that are 3293 * currently running. The return value is one of the importance constants defined 3294 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3295 * processes that this uid has running. If there are no processes 3296 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3297 * @hide 3298 */ 3299 @SystemApi @TestApi 3300 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3301 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3302 try { 3303 int procState = getService().getUidProcessState(uid, 3304 mContext.getOpPackageName()); 3305 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3306 } catch (RemoteException e) { 3307 throw e.rethrowFromSystemServer(); 3308 } 3309 } 3310 3311 /** 3312 * Callback to get reports about changes to the importance of a uid. Use with 3313 * {@link #addOnUidImportanceListener}. 3314 * @hide 3315 */ 3316 @SystemApi @TestApi 3317 public interface OnUidImportanceListener { 3318 /** 3319 * The importance if a given uid has changed. Will be one of the importance 3320 * values in {@link RunningAppProcessInfo}; 3321 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3322 * when the uid is no longer running at all. This callback will happen on a thread 3323 * from a thread pool, not the main UI thread. 3324 * @param uid The uid whose importance has changed. 3325 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3326 */ 3327 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3328 } 3329 3330 /** 3331 * Start monitoring changes to the imoportance of uids running in the system. 3332 * @param listener The listener callback that will receive change reports. 3333 * @param importanceCutpoint The level of importance in which the caller is interested 3334 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3335 * is used here, you will receive a call each time a uids importance transitions between 3336 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3337 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3338 * 3339 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3340 * permission to use this feature.</p> 3341 * 3342 * @throws IllegalArgumentException If the listener is already registered. 3343 * @throws SecurityException If the caller does not hold 3344 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3345 * @hide 3346 */ 3347 @SystemApi @TestApi 3348 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3349 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3350 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3351 synchronized (this) { 3352 if (mImportanceListeners.containsKey(listener)) { 3353 throw new IllegalArgumentException("Listener already registered: " + listener); 3354 } 3355 // TODO: implement the cut point in the system process to avoid IPCs. 3356 UidObserver observer = new UidObserver(listener, mContext); 3357 try { 3358 getService().registerUidObserver(observer, 3359 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3360 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3361 mContext.getOpPackageName()); 3362 } catch (RemoteException e) { 3363 throw e.rethrowFromSystemServer(); 3364 } 3365 mImportanceListeners.put(listener, observer); 3366 } 3367 } 3368 3369 /** 3370 * Remove an importance listener that was previously registered with 3371 * {@link #addOnUidImportanceListener}. 3372 * 3373 * @throws IllegalArgumentException If the listener is not registered. 3374 * @hide 3375 */ 3376 @SystemApi @TestApi 3377 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3378 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3379 synchronized (this) { 3380 UidObserver observer = mImportanceListeners.remove(listener); 3381 if (observer == null) { 3382 throw new IllegalArgumentException("Listener not registered: " + listener); 3383 } 3384 try { 3385 getService().unregisterUidObserver(observer); 3386 } catch (RemoteException e) { 3387 throw e.rethrowFromSystemServer(); 3388 } 3389 } 3390 } 3391 3392 /** 3393 * Return global memory state information for the calling process. This 3394 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3395 * only fields that will be filled in are 3396 * {@link RunningAppProcessInfo#pid}, 3397 * {@link RunningAppProcessInfo#uid}, 3398 * {@link RunningAppProcessInfo#lastTrimLevel}, 3399 * {@link RunningAppProcessInfo#importance}, 3400 * {@link RunningAppProcessInfo#lru}, and 3401 * {@link RunningAppProcessInfo#importanceReasonCode}. 3402 */ 3403 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3404 try { 3405 getService().getMyMemoryState(outState); 3406 } catch (RemoteException e) { 3407 throw e.rethrowFromSystemServer(); 3408 } 3409 } 3410 3411 /** 3412 * Return information about the memory usage of one or more processes. 3413 * 3414 * <p><b>Note: this method is only intended for debugging or building 3415 * a user-facing process management UI.</b></p> 3416 * 3417 * @param pids The pids of the processes whose memory usage is to be 3418 * retrieved. 3419 * @return Returns an array of memory information, one for each 3420 * requested pid. 3421 */ 3422 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3423 try { 3424 return getService().getProcessMemoryInfo(pids); 3425 } catch (RemoteException e) { 3426 throw e.rethrowFromSystemServer(); 3427 } 3428 } 3429 3430 /** 3431 * @deprecated This is now just a wrapper for 3432 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3433 * is no longer available to applications because it allows them to 3434 * break other applications by removing their alarms, stopping their 3435 * services, etc. 3436 */ 3437 @Deprecated 3438 public void restartPackage(String packageName) { 3439 killBackgroundProcesses(packageName); 3440 } 3441 3442 /** 3443 * Have the system immediately kill all background processes associated 3444 * with the given package. This is the same as the kernel killing those 3445 * processes to reclaim memory; the system will take care of restarting 3446 * these processes in the future as needed. 3447 * 3448 * @param packageName The name of the package whose processes are to 3449 * be killed. 3450 */ 3451 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3452 public void killBackgroundProcesses(String packageName) { 3453 try { 3454 getService().killBackgroundProcesses(packageName, 3455 UserHandle.myUserId()); 3456 } catch (RemoteException e) { 3457 throw e.rethrowFromSystemServer(); 3458 } 3459 } 3460 3461 /** 3462 * Kills the specified UID. 3463 * @param uid The UID to kill. 3464 * @param reason The reason for the kill. 3465 * 3466 * @hide 3467 */ 3468 @SystemApi 3469 @RequiresPermission(Manifest.permission.KILL_UID) 3470 public void killUid(int uid, String reason) { 3471 try { 3472 getService().killUid(UserHandle.getAppId(uid), 3473 UserHandle.getUserId(uid), reason); 3474 } catch (RemoteException e) { 3475 throw e.rethrowFromSystemServer(); 3476 } 3477 } 3478 3479 /** 3480 * Have the system perform a force stop of everything associated with 3481 * the given application package. All processes that share its uid 3482 * will be killed, all services it has running stopped, all activities 3483 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3484 * broadcast will be sent, so that any of its registered alarms can 3485 * be stopped, notifications removed, etc. 3486 * 3487 * <p>You must hold the permission 3488 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3489 * call this method. 3490 * 3491 * @param packageName The name of the package to be stopped. 3492 * @param userId The user for which the running package is to be stopped. 3493 * 3494 * @hide This is not available to third party applications due to 3495 * it allowing them to break other applications by stopping their 3496 * services, removing their alarms, etc. 3497 */ 3498 public void forceStopPackageAsUser(String packageName, int userId) { 3499 try { 3500 getService().forceStopPackage(packageName, userId); 3501 } catch (RemoteException e) { 3502 throw e.rethrowFromSystemServer(); 3503 } 3504 } 3505 3506 /** 3507 * @see #forceStopPackageAsUser(String, int) 3508 * @hide 3509 */ 3510 @SystemApi 3511 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3512 public void forceStopPackage(String packageName) { 3513 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3514 } 3515 3516 /** 3517 * Get the device configuration attributes. 3518 */ 3519 public ConfigurationInfo getDeviceConfigurationInfo() { 3520 try { 3521 return getService().getDeviceConfigurationInfo(); 3522 } catch (RemoteException e) { 3523 throw e.rethrowFromSystemServer(); 3524 } 3525 } 3526 3527 /** 3528 * Get the preferred density of icons for the launcher. This is used when 3529 * custom drawables are created (e.g., for shortcuts). 3530 * 3531 * @return density in terms of DPI 3532 */ 3533 public int getLauncherLargeIconDensity() { 3534 final Resources res = mContext.getResources(); 3535 final int density = res.getDisplayMetrics().densityDpi; 3536 final int sw = res.getConfiguration().smallestScreenWidthDp; 3537 3538 if (sw < 600) { 3539 // Smaller than approx 7" tablets, use the regular icon size. 3540 return density; 3541 } 3542 3543 switch (density) { 3544 case DisplayMetrics.DENSITY_LOW: 3545 return DisplayMetrics.DENSITY_MEDIUM; 3546 case DisplayMetrics.DENSITY_MEDIUM: 3547 return DisplayMetrics.DENSITY_HIGH; 3548 case DisplayMetrics.DENSITY_TV: 3549 return DisplayMetrics.DENSITY_XHIGH; 3550 case DisplayMetrics.DENSITY_HIGH: 3551 return DisplayMetrics.DENSITY_XHIGH; 3552 case DisplayMetrics.DENSITY_XHIGH: 3553 return DisplayMetrics.DENSITY_XXHIGH; 3554 case DisplayMetrics.DENSITY_XXHIGH: 3555 return DisplayMetrics.DENSITY_XHIGH * 2; 3556 default: 3557 // The density is some abnormal value. Return some other 3558 // abnormal value that is a reasonable scaling of it. 3559 return (int)((density*1.5f)+.5f); 3560 } 3561 } 3562 3563 /** 3564 * Get the preferred launcher icon size. This is used when custom drawables 3565 * are created (e.g., for shortcuts). 3566 * 3567 * @return dimensions of square icons in terms of pixels 3568 */ 3569 public int getLauncherLargeIconSize() { 3570 return getLauncherLargeIconSizeInner(mContext); 3571 } 3572 3573 static int getLauncherLargeIconSizeInner(Context context) { 3574 final Resources res = context.getResources(); 3575 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3576 final int sw = res.getConfiguration().smallestScreenWidthDp; 3577 3578 if (sw < 600) { 3579 // Smaller than approx 7" tablets, use the regular icon size. 3580 return size; 3581 } 3582 3583 final int density = res.getDisplayMetrics().densityDpi; 3584 3585 switch (density) { 3586 case DisplayMetrics.DENSITY_LOW: 3587 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3588 case DisplayMetrics.DENSITY_MEDIUM: 3589 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3590 case DisplayMetrics.DENSITY_TV: 3591 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3592 case DisplayMetrics.DENSITY_HIGH: 3593 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3594 case DisplayMetrics.DENSITY_XHIGH: 3595 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3596 case DisplayMetrics.DENSITY_XXHIGH: 3597 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3598 default: 3599 // The density is some abnormal value. Return some other 3600 // abnormal value that is a reasonable scaling of it. 3601 return (int)((size*1.5f) + .5f); 3602 } 3603 } 3604 3605 /** 3606 * Returns "true" if the user interface is currently being messed with 3607 * by a monkey. 3608 */ 3609 public static boolean isUserAMonkey() { 3610 try { 3611 return getService().isUserAMonkey(); 3612 } catch (RemoteException e) { 3613 throw e.rethrowFromSystemServer(); 3614 } 3615 } 3616 3617 /** 3618 * Returns "true" if device is running in a test harness. 3619 */ 3620 public static boolean isRunningInTestHarness() { 3621 return SystemProperties.getBoolean("ro.test_harness", false); 3622 } 3623 3624 /** 3625 * Returns the launch count of each installed package. 3626 * 3627 * @hide 3628 */ 3629 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3630 try { 3631 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3632 ServiceManager.getService("usagestats")); 3633 if (usageStatsService == null) { 3634 return new HashMap<String, Integer>(); 3635 } 3636 3637 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3638 ActivityThread.currentPackageName()); 3639 if (allPkgUsageStats == null) { 3640 return new HashMap<String, Integer>(); 3641 } 3642 3643 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3644 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3645 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3646 } 3647 3648 return launchCounts; 3649 } catch (RemoteException e) { 3650 Log.w(TAG, "Could not query launch counts", e); 3651 return new HashMap<String, Integer>(); 3652 } 3653 }*/ 3654 3655 /** @hide */ 3656 public static int checkComponentPermission(String permission, int uid, 3657 int owningUid, boolean exported) { 3658 // Root, system server get to do everything. 3659 final int appId = UserHandle.getAppId(uid); 3660 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3661 return PackageManager.PERMISSION_GRANTED; 3662 } 3663 // Isolated processes don't get any permissions. 3664 if (UserHandle.isIsolated(uid)) { 3665 return PackageManager.PERMISSION_DENIED; 3666 } 3667 // If there is a uid that owns whatever is being accessed, it has 3668 // blanket access to it regardless of the permissions it requires. 3669 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3670 return PackageManager.PERMISSION_GRANTED; 3671 } 3672 // If the target is not exported, then nobody else can get to it. 3673 if (!exported) { 3674 /* 3675 RuntimeException here = new RuntimeException("here"); 3676 here.fillInStackTrace(); 3677 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3678 here); 3679 */ 3680 return PackageManager.PERMISSION_DENIED; 3681 } 3682 if (permission == null) { 3683 return PackageManager.PERMISSION_GRANTED; 3684 } 3685 try { 3686 return AppGlobals.getPackageManager() 3687 .checkUidPermission(permission, uid); 3688 } catch (RemoteException e) { 3689 throw e.rethrowFromSystemServer(); 3690 } 3691 } 3692 3693 /** @hide */ 3694 public static int checkUidPermission(String permission, int uid) { 3695 try { 3696 return AppGlobals.getPackageManager() 3697 .checkUidPermission(permission, uid); 3698 } catch (RemoteException e) { 3699 throw e.rethrowFromSystemServer(); 3700 } 3701 } 3702 3703 /** 3704 * @hide 3705 * Helper for dealing with incoming user arguments to system service calls. 3706 * Takes care of checking permissions and converting USER_CURRENT to the 3707 * actual current user. 3708 * 3709 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3710 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3711 * @param userId The user id argument supplied by the caller -- this is the user 3712 * they want to run as. 3713 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3714 * to get a USER_ALL returned and deal with it correctly. If false, 3715 * an exception will be thrown if USER_ALL is supplied. 3716 * @param requireFull If true, the caller must hold 3717 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3718 * different user than their current process; otherwise they must hold 3719 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3720 * @param name Optional textual name of the incoming call; only for generating error messages. 3721 * @param callerPackage Optional package name of caller; only for error messages. 3722 * 3723 * @return Returns the user ID that the call should run as. Will always be a concrete 3724 * user number, unless <var>allowAll</var> is true in which case it could also be 3725 * USER_ALL. 3726 */ 3727 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3728 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3729 if (UserHandle.getUserId(callingUid) == userId) { 3730 return userId; 3731 } 3732 try { 3733 return getService().handleIncomingUser(callingPid, 3734 callingUid, userId, allowAll, requireFull, name, callerPackage); 3735 } catch (RemoteException e) { 3736 throw e.rethrowFromSystemServer(); 3737 } 3738 } 3739 3740 /** 3741 * Gets the userId of the current foreground user. Requires system permissions. 3742 * @hide 3743 */ 3744 @SystemApi 3745 @RequiresPermission(anyOf = { 3746 "android.permission.INTERACT_ACROSS_USERS", 3747 "android.permission.INTERACT_ACROSS_USERS_FULL" 3748 }) 3749 public static int getCurrentUser() { 3750 UserInfo ui; 3751 try { 3752 ui = getService().getCurrentUser(); 3753 return ui != null ? ui.id : 0; 3754 } catch (RemoteException e) { 3755 throw e.rethrowFromSystemServer(); 3756 } 3757 } 3758 3759 /** 3760 * @param userid the user's id. Zero indicates the default user. 3761 * @hide 3762 */ 3763 public boolean switchUser(int userid) { 3764 try { 3765 return getService().switchUser(userid); 3766 } catch (RemoteException e) { 3767 throw e.rethrowFromSystemServer(); 3768 } 3769 } 3770 3771 /** 3772 * Logs out current current foreground user by switching to the system user and stopping the 3773 * user being switched from. 3774 * @hide 3775 */ 3776 public static void logoutCurrentUser() { 3777 int currentUser = ActivityManager.getCurrentUser(); 3778 if (currentUser != UserHandle.USER_SYSTEM) { 3779 try { 3780 getService().switchUser(UserHandle.USER_SYSTEM); 3781 getService().stopUser(currentUser, /* force= */ false, null); 3782 } catch (RemoteException e) { 3783 e.rethrowFromSystemServer(); 3784 } 3785 } 3786 } 3787 3788 /** {@hide} */ 3789 public static final int FLAG_OR_STOPPED = 1 << 0; 3790 /** {@hide} */ 3791 public static final int FLAG_AND_LOCKED = 1 << 1; 3792 /** {@hide} */ 3793 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3794 /** {@hide} */ 3795 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3796 3797 /** 3798 * Return whether the given user is actively running. This means that 3799 * the user is in the "started" state, not "stopped" -- it is currently 3800 * allowed to run code through scheduled alarms, receiving broadcasts, 3801 * etc. A started user may be either the current foreground user or a 3802 * background user; the result here does not distinguish between the two. 3803 * @param userId the user's id. Zero indicates the default user. 3804 * @hide 3805 */ 3806 public boolean isUserRunning(int userId) { 3807 try { 3808 return getService().isUserRunning(userId, 0); 3809 } catch (RemoteException e) { 3810 throw e.rethrowFromSystemServer(); 3811 } 3812 } 3813 3814 /** {@hide} */ 3815 public boolean isVrModePackageEnabled(ComponentName component) { 3816 try { 3817 return getService().isVrModePackageEnabled(component); 3818 } catch (RemoteException e) { 3819 throw e.rethrowFromSystemServer(); 3820 } 3821 } 3822 3823 /** 3824 * Perform a system dump of various state associated with the given application 3825 * package name. This call blocks while the dump is being performed, so should 3826 * not be done on a UI thread. The data will be written to the given file 3827 * descriptor as text. 3828 * @param fd The file descriptor that the dump should be written to. The file 3829 * descriptor is <em>not</em> closed by this function; the caller continues to 3830 * own it. 3831 * @param packageName The name of the package that is to be dumped. 3832 */ 3833 @RequiresPermission(Manifest.permission.DUMP) 3834 public void dumpPackageState(FileDescriptor fd, String packageName) { 3835 dumpPackageStateStatic(fd, packageName); 3836 } 3837 3838 /** 3839 * @hide 3840 */ 3841 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3842 FileOutputStream fout = new FileOutputStream(fd); 3843 PrintWriter pw = new FastPrintWriter(fout); 3844 dumpService(pw, fd, "package", new String[] { packageName }); 3845 pw.println(); 3846 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3847 "-a", "package", packageName }); 3848 pw.println(); 3849 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3850 pw.println(); 3851 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3852 pw.println(); 3853 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3854 pw.println(); 3855 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3856 pw.flush(); 3857 } 3858 3859 /** 3860 * @hide 3861 */ 3862 public static boolean isSystemReady() { 3863 if (!sSystemReady) { 3864 if (ActivityThread.isSystem()) { 3865 sSystemReady = 3866 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3867 } else { 3868 // Since this is being called from outside system server, system should be 3869 // ready by now. 3870 sSystemReady = true; 3871 } 3872 } 3873 return sSystemReady; 3874 } 3875 3876 /** 3877 * @hide 3878 */ 3879 public static void broadcastStickyIntent(Intent intent, int userId) { 3880 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3881 } 3882 3883 /** 3884 * Convenience for sending a sticky broadcast. For internal use only. 3885 * 3886 * @hide 3887 */ 3888 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3889 try { 3890 getService().broadcastIntent( 3891 null, intent, null, null, Activity.RESULT_OK, null, null, 3892 null /*permission*/, appOp, null, false, true, userId); 3893 } catch (RemoteException ex) { 3894 } 3895 } 3896 3897 /** 3898 * @hide 3899 */ 3900 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 3901 String tag) { 3902 try { 3903 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 3904 sourceUid, sourcePkg, tag); 3905 } catch (RemoteException ex) { 3906 } 3907 } 3908 3909 /** 3910 * @hide 3911 */ 3912 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 3913 try { 3914 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3915 } catch (RemoteException ex) { 3916 } 3917 } 3918 3919 /** 3920 * @hide 3921 */ 3922 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 3923 try { 3924 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 3925 } catch (RemoteException ex) { 3926 } 3927 } 3928 3929 /** 3930 * @hide 3931 */ 3932 public static IActivityManager getService() { 3933 return IActivityManagerSingleton.get(); 3934 } 3935 3936 private static final Singleton<IActivityManager> IActivityManagerSingleton = 3937 new Singleton<IActivityManager>() { 3938 @Override 3939 protected IActivityManager create() { 3940 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 3941 final IActivityManager am = IActivityManager.Stub.asInterface(b); 3942 return am; 3943 } 3944 }; 3945 3946 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 3947 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 3948 IBinder service = ServiceManager.checkService(name); 3949 if (service == null) { 3950 pw.println(" (Service not found)"); 3951 pw.flush(); 3952 return; 3953 } 3954 pw.flush(); 3955 if (service instanceof Binder) { 3956 // If this is a local object, it doesn't make sense to do an async dump with it, 3957 // just directly dump. 3958 try { 3959 service.dump(fd, args); 3960 } catch (Throwable e) { 3961 pw.println("Failure dumping service:"); 3962 e.printStackTrace(pw); 3963 pw.flush(); 3964 } 3965 } else { 3966 // Otherwise, it is remote, do the dump asynchronously to avoid blocking. 3967 TransferPipe tp = null; 3968 try { 3969 pw.flush(); 3970 tp = new TransferPipe(); 3971 tp.setBufferPrefix(" "); 3972 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 3973 tp.go(fd, 10000); 3974 } catch (Throwable e) { 3975 if (tp != null) { 3976 tp.kill(); 3977 } 3978 pw.println("Failure dumping service:"); 3979 e.printStackTrace(pw); 3980 } 3981 } 3982 } 3983 3984 /** 3985 * Request that the system start watching for the calling process to exceed a pss 3986 * size as given here. Once called, the system will look for any occasions where it 3987 * sees the associated process with a larger pss size and, when this happens, automatically 3988 * pull a heap dump from it and allow the user to share the data. Note that this request 3989 * continues running even if the process is killed and restarted. To remove the watch, 3990 * use {@link #clearWatchHeapLimit()}. 3991 * 3992 * <p>This API only work if the calling process has been marked as 3993 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 3994 * (userdebug or eng) build.</p> 3995 * 3996 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 3997 * handle heap limit reports themselves.</p> 3998 * 3999 * @param pssSize The size in bytes to set the limit at. 4000 */ 4001 public void setWatchHeapLimit(long pssSize) { 4002 try { 4003 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4004 mContext.getPackageName()); 4005 } catch (RemoteException e) { 4006 throw e.rethrowFromSystemServer(); 4007 } 4008 } 4009 4010 /** 4011 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4012 * If your package has an activity handling this action, it will be launched with the 4013 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4014 * match the activty must support this action and a MIME type of "*/*". 4015 */ 4016 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4017 4018 /** 4019 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4020 */ 4021 public void clearWatchHeapLimit() { 4022 try { 4023 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4024 } catch (RemoteException e) { 4025 throw e.rethrowFromSystemServer(); 4026 } 4027 } 4028 4029 /** 4030 * Return whether currently in lock task mode. When in this mode 4031 * no new tasks can be created or switched to. 4032 * 4033 * @see Activity#startLockTask() 4034 * 4035 * @deprecated Use {@link #getLockTaskModeState} instead. 4036 */ 4037 @Deprecated 4038 public boolean isInLockTaskMode() { 4039 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4040 } 4041 4042 /** 4043 * Return the current state of task locking. The three possible outcomes 4044 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4045 * and {@link #LOCK_TASK_MODE_PINNED}. 4046 * 4047 * @see Activity#startLockTask() 4048 */ 4049 public int getLockTaskModeState() { 4050 try { 4051 return getService().getLockTaskModeState(); 4052 } catch (RemoteException e) { 4053 throw e.rethrowFromSystemServer(); 4054 } 4055 } 4056 4057 /** 4058 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4059 * thread can be a VR thread in a process at a time, and that thread may be subject to 4060 * restrictions on the amount of time it can run. 4061 * 4062 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4063 * method will return to normal operation, and calling this method will do nothing while 4064 * persistent VR mode is enabled. 4065 * 4066 * To reset the VR thread for an application, a tid of 0 can be passed. 4067 * 4068 * @see android.os.Process#myTid() 4069 * @param tid tid of the VR thread 4070 */ 4071 public static void setVrThread(int tid) { 4072 try { 4073 getService().setVrThread(tid); 4074 } catch (RemoteException e) { 4075 // pass 4076 } 4077 } 4078 4079 /** 4080 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4081 * beyond a single process. Only one thread can be a 4082 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4083 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4084 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4085 * persistent VR thread loses its new scheduling priority; this method must be called again to 4086 * set the persistent thread. 4087 * 4088 * To reset the persistent VR thread, a tid of 0 can be passed. 4089 * 4090 * @see android.os.Process#myTid() 4091 * @param tid tid of the VR thread 4092 * @hide 4093 */ 4094 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4095 public static void setPersistentVrThread(int tid) { 4096 try { 4097 getService().setPersistentVrThread(tid); 4098 } catch (RemoteException e) { 4099 // pass 4100 } 4101 } 4102 4103 /** 4104 * The AppTask allows you to manage your own application's tasks. 4105 * See {@link android.app.ActivityManager#getAppTasks()} 4106 */ 4107 public static class AppTask { 4108 private IAppTask mAppTaskImpl; 4109 4110 /** @hide */ 4111 public AppTask(IAppTask task) { 4112 mAppTaskImpl = task; 4113 } 4114 4115 /** 4116 * Finishes all activities in this task and removes it from the recent tasks list. 4117 */ 4118 public void finishAndRemoveTask() { 4119 try { 4120 mAppTaskImpl.finishAndRemoveTask(); 4121 } catch (RemoteException e) { 4122 throw e.rethrowFromSystemServer(); 4123 } 4124 } 4125 4126 /** 4127 * Get the RecentTaskInfo associated with this task. 4128 * 4129 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4130 */ 4131 public RecentTaskInfo getTaskInfo() { 4132 try { 4133 return mAppTaskImpl.getTaskInfo(); 4134 } catch (RemoteException e) { 4135 throw e.rethrowFromSystemServer(); 4136 } 4137 } 4138 4139 /** 4140 * Bring this task to the foreground. If it contains activities, they will be 4141 * brought to the foreground with it and their instances re-created if needed. 4142 * If it doesn't contain activities, the root activity of the task will be 4143 * re-launched. 4144 */ 4145 public void moveToFront() { 4146 try { 4147 mAppTaskImpl.moveToFront(); 4148 } catch (RemoteException e) { 4149 throw e.rethrowFromSystemServer(); 4150 } 4151 } 4152 4153 /** 4154 * Start an activity in this task. Brings the task to the foreground. If this task 4155 * is not currently active (that is, its id < 0), then a new activity for the given 4156 * Intent will be launched as the root of the task and the task brought to the 4157 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4158 * an activity to launch in a new task, then a new activity for the given Intent will 4159 * be launched on top of the task and the task brought to the foreground. If this 4160 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4161 * or would otherwise be launched in to a new task, then the activity not launched but 4162 * this task be brought to the foreground and a new intent delivered to the top 4163 * activity if appropriate. 4164 * 4165 * <p>In other words, you generally want to use an Intent here that does not specify 4166 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4167 * and let the system do the right thing.</p> 4168 * 4169 * @param intent The Intent describing the new activity to be launched on the task. 4170 * @param options Optional launch options. 4171 * 4172 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4173 */ 4174 public void startActivity(Context context, Intent intent, Bundle options) { 4175 ActivityThread thread = ActivityThread.currentActivityThread(); 4176 thread.getInstrumentation().execStartActivityFromAppTask(context, 4177 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4178 } 4179 4180 /** 4181 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4182 * Intent of this AppTask. 4183 * 4184 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4185 * be set; otherwise, it will be cleared. 4186 */ 4187 public void setExcludeFromRecents(boolean exclude) { 4188 try { 4189 mAppTaskImpl.setExcludeFromRecents(exclude); 4190 } catch (RemoteException e) { 4191 throw e.rethrowFromSystemServer(); 4192 } 4193 } 4194 } 4195} 4196