ActivityManager.java revision 9dcf94656d29e9d00a6d2fb2a919161347913d6e
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.app; 18 19import static android.app.WindowConfiguration.ACTIVITY_TYPE_ASSISTANT; 20import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME; 21import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS; 22import static android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD; 23import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 24import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM; 25import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; 26import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 27import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_SECONDARY; 28import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; 29 30import android.Manifest; 31import android.annotation.IntDef; 32import android.annotation.NonNull; 33import android.annotation.Nullable; 34import android.annotation.RequiresPermission; 35import android.annotation.SystemApi; 36import android.annotation.SystemService; 37import android.annotation.TestApi; 38import android.content.ComponentName; 39import android.content.Context; 40import android.content.Intent; 41import android.content.UriPermission; 42import android.content.pm.ActivityInfo; 43import android.content.pm.ApplicationInfo; 44import android.content.pm.ConfigurationInfo; 45import android.content.pm.IPackageDataObserver; 46import android.content.pm.PackageManager; 47import android.content.pm.ParceledListSlice; 48import android.content.pm.UserInfo; 49import android.content.res.Resources; 50import android.graphics.Bitmap; 51import android.graphics.Canvas; 52import android.graphics.Color; 53import android.graphics.GraphicBuffer; 54import android.graphics.Matrix; 55import android.graphics.Point; 56import android.graphics.Rect; 57import android.os.BatteryStats; 58import android.os.Build; 59import android.os.Build.VERSION_CODES; 60import android.os.Bundle; 61import android.os.Debug; 62import android.os.Handler; 63import android.os.IBinder; 64import android.os.Parcel; 65import android.os.Parcelable; 66import android.os.Process; 67import android.os.RemoteException; 68import android.os.ServiceManager; 69import android.os.SystemProperties; 70import android.os.UserHandle; 71import android.text.TextUtils; 72import android.util.ArrayMap; 73import android.util.DisplayMetrics; 74import android.util.Singleton; 75import android.util.Size; 76 77import com.android.internal.app.procstats.ProcessStats; 78import com.android.internal.os.RoSystemProperties; 79import com.android.internal.os.TransferPipe; 80import com.android.internal.util.FastPrintWriter; 81import com.android.server.LocalServices; 82 83import org.xmlpull.v1.XmlSerializer; 84 85import java.io.FileDescriptor; 86import java.io.FileOutputStream; 87import java.io.IOException; 88import java.io.PrintWriter; 89import java.lang.annotation.Retention; 90import java.lang.annotation.RetentionPolicy; 91import java.util.ArrayList; 92import java.util.List; 93 94/** 95 * <p> 96 * This class gives information about, and interacts 97 * with, activities, services, and the containing 98 * process. 99 * </p> 100 * 101 * <p> 102 * A number of the methods in this class are for 103 * debugging or informational purposes and they should 104 * not be used to affect any runtime behavior of 105 * your app. These methods are called out as such in 106 * the method level documentation. 107 * </p> 108 * 109 *<p> 110 * Most application developers should not have the need to 111 * use this class, most of whose methods are for specialized 112 * use cases. However, a few methods are more broadly applicable. 113 * For instance, {@link android.app.ActivityManager#isLowRamDevice() isLowRamDevice()} 114 * enables your app to detect whether it is running on a low-memory device, 115 * and behave accordingly. 116 * {@link android.app.ActivityManager#clearApplicationUserData() clearApplicationUserData()} 117 * is for apps with reset-data functionality. 118 * </p> 119 * 120 * <p> 121 * In some special use cases, where an app interacts with 122 * its Task stack, the app may use the 123 * {@link android.app.ActivityManager.AppTask} and 124 * {@link android.app.ActivityManager.RecentTaskInfo} inner 125 * classes. However, in general, the methods in this class should 126 * be used for testing and debugging purposes only. 127 * </p> 128 */ 129@SystemService(Context.ACTIVITY_SERVICE) 130public class ActivityManager { 131 private static String TAG = "ActivityManager"; 132 133 private static int gMaxRecentTasks = -1; 134 135 private final Context mContext; 136 137 private static volatile boolean sSystemReady = false; 138 139 140 private static final int FIRST_START_FATAL_ERROR_CODE = -100; 141 private static final int LAST_START_FATAL_ERROR_CODE = -1; 142 private static final int FIRST_START_SUCCESS_CODE = 0; 143 private static final int LAST_START_SUCCESS_CODE = 99; 144 private static final int FIRST_START_NON_FATAL_ERROR_CODE = 100; 145 private static final int LAST_START_NON_FATAL_ERROR_CODE = 199; 146 147 static final class UidObserver extends IUidObserver.Stub { 148 final OnUidImportanceListener mListener; 149 final Context mContext; 150 151 UidObserver(OnUidImportanceListener listener, Context clientContext) { 152 mListener = listener; 153 mContext = clientContext; 154 } 155 156 @Override 157 public void onUidStateChanged(int uid, int procState, long procStateSeq) { 158 mListener.onUidImportance(uid, RunningAppProcessInfo.procStateToImportanceForClient( 159 procState, mContext)); 160 } 161 162 @Override 163 public void onUidGone(int uid, boolean disabled) { 164 mListener.onUidImportance(uid, RunningAppProcessInfo.IMPORTANCE_GONE); 165 } 166 167 @Override 168 public void onUidActive(int uid) { 169 } 170 171 @Override 172 public void onUidIdle(int uid, boolean disabled) { 173 } 174 175 @Override public void onUidCachedChanged(int uid, boolean cached) { 176 } 177 } 178 179 final ArrayMap<OnUidImportanceListener, UidObserver> mImportanceListeners = new ArrayMap<>(); 180 181 /** 182 * Defines acceptable types of bugreports. 183 * @hide 184 */ 185 @Retention(RetentionPolicy.SOURCE) 186 @IntDef({ 187 BUGREPORT_OPTION_FULL, 188 BUGREPORT_OPTION_INTERACTIVE, 189 BUGREPORT_OPTION_REMOTE, 190 BUGREPORT_OPTION_WEAR, 191 BUGREPORT_OPTION_TELEPHONY 192 }) 193 public @interface BugreportMode {} 194 /** 195 * Takes a bugreport without user interference (and hence causing less 196 * interference to the system), but includes all sections. 197 * @hide 198 */ 199 public static final int BUGREPORT_OPTION_FULL = 0; 200 /** 201 * Allows user to monitor progress and enter additional data; might not include all 202 * sections. 203 * @hide 204 */ 205 public static final int BUGREPORT_OPTION_INTERACTIVE = 1; 206 /** 207 * Takes a bugreport requested remotely by administrator of the Device Owner app, 208 * not the device's user. 209 * @hide 210 */ 211 public static final int BUGREPORT_OPTION_REMOTE = 2; 212 /** 213 * Takes a bugreport on a wearable device. 214 * @hide 215 */ 216 public static final int BUGREPORT_OPTION_WEAR = 3; 217 218 /** 219 * Takes a lightweight version of bugreport that only includes a few, urgent sections 220 * used to report telephony bugs. 221 * @hide 222 */ 223 public static final int BUGREPORT_OPTION_TELEPHONY = 4; 224 225 /** 226 * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code 227 * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be 228 * uninstalled in lieu of the declaring one. The package named here must be 229 * signed with the same certificate as the one declaring the {@code <meta-data>}. 230 */ 231 public static final String META_HOME_ALTERNATE = "android.app.home.alternate"; 232 233 // NOTE: Before adding a new start result, please reference the defined ranges to ensure the 234 // result is properly categorized. 235 236 /** 237 * Result for IActivityManager.startVoiceActivity: active session is currently hidden. 238 * @hide 239 */ 240 public static final int START_VOICE_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE; 241 242 /** 243 * Result for IActivityManager.startVoiceActivity: active session does not match 244 * the requesting token. 245 * @hide 246 */ 247 public static final int START_VOICE_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 1; 248 249 /** 250 * Result for IActivityManager.startActivity: trying to start a background user 251 * activity that shouldn't be displayed for all users. 252 * @hide 253 */ 254 public static final int START_NOT_CURRENT_USER_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 2; 255 256 /** 257 * Result for IActivityManager.startActivity: trying to start an activity under voice 258 * control when that activity does not support the VOICE category. 259 * @hide 260 */ 261 public static final int START_NOT_VOICE_COMPATIBLE = FIRST_START_FATAL_ERROR_CODE + 3; 262 263 /** 264 * Result for IActivityManager.startActivity: an error where the 265 * start had to be canceled. 266 * @hide 267 */ 268 public static final int START_CANCELED = FIRST_START_FATAL_ERROR_CODE + 4; 269 270 /** 271 * Result for IActivityManager.startActivity: an error where the 272 * thing being started is not an activity. 273 * @hide 274 */ 275 public static final int START_NOT_ACTIVITY = FIRST_START_FATAL_ERROR_CODE + 5; 276 277 /** 278 * Result for IActivityManager.startActivity: an error where the 279 * caller does not have permission to start the activity. 280 * @hide 281 */ 282 public static final int START_PERMISSION_DENIED = FIRST_START_FATAL_ERROR_CODE + 6; 283 284 /** 285 * Result for IActivityManager.startActivity: an error where the 286 * caller has requested both to forward a result and to receive 287 * a result. 288 * @hide 289 */ 290 public static final int START_FORWARD_AND_REQUEST_CONFLICT = FIRST_START_FATAL_ERROR_CODE + 7; 291 292 /** 293 * Result for IActivityManager.startActivity: an error where the 294 * requested class is not found. 295 * @hide 296 */ 297 public static final int START_CLASS_NOT_FOUND = FIRST_START_FATAL_ERROR_CODE + 8; 298 299 /** 300 * Result for IActivityManager.startActivity: an error where the 301 * given Intent could not be resolved to an activity. 302 * @hide 303 */ 304 public static final int START_INTENT_NOT_RESOLVED = FIRST_START_FATAL_ERROR_CODE + 9; 305 306 /** 307 * Result for IActivityManager.startAssistantActivity: active session is currently hidden. 308 * @hide 309 */ 310 public static final int START_ASSISTANT_HIDDEN_SESSION = FIRST_START_FATAL_ERROR_CODE + 10; 311 312 /** 313 * Result for IActivityManager.startAssistantActivity: active session does not match 314 * the requesting token. 315 * @hide 316 */ 317 public static final int START_ASSISTANT_NOT_ACTIVE_SESSION = FIRST_START_FATAL_ERROR_CODE + 11; 318 319 /** 320 * Result for IActivityManaqer.startActivity: the activity was started 321 * successfully as normal. 322 * @hide 323 */ 324 public static final int START_SUCCESS = FIRST_START_SUCCESS_CODE; 325 326 /** 327 * Result for IActivityManaqer.startActivity: the caller asked that the Intent not 328 * be executed if it is the recipient, and that is indeed the case. 329 * @hide 330 */ 331 public static final int START_RETURN_INTENT_TO_CALLER = FIRST_START_SUCCESS_CODE + 1; 332 333 /** 334 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 335 * a task was simply brought to the foreground. 336 * @hide 337 */ 338 public static final int START_TASK_TO_FRONT = FIRST_START_SUCCESS_CODE + 2; 339 340 /** 341 * Result for IActivityManaqer.startActivity: activity wasn't really started, but 342 * the given Intent was given to the existing top activity. 343 * @hide 344 */ 345 public static final int START_DELIVERED_TO_TOP = FIRST_START_SUCCESS_CODE + 3; 346 347 /** 348 * Result for IActivityManaqer.startActivity: request was canceled because 349 * app switches are temporarily canceled to ensure the user's last request 350 * (such as pressing home) is performed. 351 * @hide 352 */ 353 public static final int START_SWITCHES_CANCELED = FIRST_START_NON_FATAL_ERROR_CODE; 354 355 /** 356 * Result for IActivityManaqer.startActivity: a new activity was attempted to be started 357 * while in Lock Task Mode. 358 * @hide 359 */ 360 public static final int START_RETURN_LOCK_TASK_MODE_VIOLATION = 361 FIRST_START_NON_FATAL_ERROR_CODE + 1; 362 363 /** 364 * Result for IActivityManaqer.startActivity: a new activity start was aborted. Never returned 365 * externally. 366 * @hide 367 */ 368 public static final int START_ABORTED = FIRST_START_NON_FATAL_ERROR_CODE + 2; 369 370 /** 371 * Flag for IActivityManaqer.startActivity: do special start mode where 372 * a new activity is launched only if it is needed. 373 * @hide 374 */ 375 public static final int START_FLAG_ONLY_IF_NEEDED = 1<<0; 376 377 /** 378 * Flag for IActivityManaqer.startActivity: launch the app for 379 * debugging. 380 * @hide 381 */ 382 public static final int START_FLAG_DEBUG = 1<<1; 383 384 /** 385 * Flag for IActivityManaqer.startActivity: launch the app for 386 * allocation tracking. 387 * @hide 388 */ 389 public static final int START_FLAG_TRACK_ALLOCATION = 1<<2; 390 391 /** 392 * Flag for IActivityManaqer.startActivity: launch the app with 393 * native debugging support. 394 * @hide 395 */ 396 public static final int START_FLAG_NATIVE_DEBUGGING = 1<<3; 397 398 /** 399 * Result for IActivityManaqer.broadcastIntent: success! 400 * @hide 401 */ 402 public static final int BROADCAST_SUCCESS = 0; 403 404 /** 405 * Result for IActivityManaqer.broadcastIntent: attempt to broadcast 406 * a sticky intent without appropriate permission. 407 * @hide 408 */ 409 public static final int BROADCAST_STICKY_CANT_HAVE_PERMISSION = -1; 410 411 /** 412 * Result for IActivityManager.broadcastIntent: trying to send a broadcast 413 * to a stopped user. Fail. 414 * @hide 415 */ 416 public static final int BROADCAST_FAILED_USER_STOPPED = -2; 417 418 /** 419 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 420 * for a sendBroadcast operation. 421 * @hide 422 */ 423 public static final int INTENT_SENDER_BROADCAST = 1; 424 425 /** 426 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 427 * for a startActivity operation. 428 * @hide 429 */ 430 public static final int INTENT_SENDER_ACTIVITY = 2; 431 432 /** 433 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 434 * for an activity result operation. 435 * @hide 436 */ 437 public static final int INTENT_SENDER_ACTIVITY_RESULT = 3; 438 439 /** 440 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 441 * for a startService operation. 442 * @hide 443 */ 444 public static final int INTENT_SENDER_SERVICE = 4; 445 446 /** 447 * Type for IActivityManaqer.getIntentSender: this PendingIntent is 448 * for a startForegroundService operation. 449 * @hide 450 */ 451 public static final int INTENT_SENDER_FOREGROUND_SERVICE = 5; 452 453 /** @hide User operation call: success! */ 454 public static final int USER_OP_SUCCESS = 0; 455 456 /** @hide User operation call: given user id is not known. */ 457 public static final int USER_OP_UNKNOWN_USER = -1; 458 459 /** @hide User operation call: given user id is the current user, can't be stopped. */ 460 public static final int USER_OP_IS_CURRENT = -2; 461 462 /** @hide User operation call: system user can't be stopped. */ 463 public static final int USER_OP_ERROR_IS_SYSTEM = -3; 464 465 /** @hide User operation call: one of related users cannot be stopped. */ 466 public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; 467 468 /** @hide Not a real process state. */ 469 public static final int PROCESS_STATE_UNKNOWN = -1; 470 471 /** @hide Process is a persistent system process. */ 472 public static final int PROCESS_STATE_PERSISTENT = 0; 473 474 /** @hide Process is a persistent system process and is doing UI. */ 475 public static final int PROCESS_STATE_PERSISTENT_UI = 1; 476 477 /** @hide Process is hosting the current top activities. Note that this covers 478 * all activities that are visible to the user. */ 479 public static final int PROCESS_STATE_TOP = 2; 480 481 /** @hide Process is hosting a foreground service due to a system binding. */ 482 public static final int PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 3; 483 484 /** @hide Process is hosting a foreground service. */ 485 public static final int PROCESS_STATE_FOREGROUND_SERVICE = 4; 486 487 /** @hide Same as {@link #PROCESS_STATE_TOP} but while device is sleeping. */ 488 public static final int PROCESS_STATE_TOP_SLEEPING = 5; 489 490 /** @hide Process is important to the user, and something they are aware of. */ 491 public static final int PROCESS_STATE_IMPORTANT_FOREGROUND = 6; 492 493 /** @hide Process is important to the user, but not something they are aware of. */ 494 public static final int PROCESS_STATE_IMPORTANT_BACKGROUND = 7; 495 496 /** @hide Process is in the background transient so we will try to keep running. */ 497 public static final int PROCESS_STATE_TRANSIENT_BACKGROUND = 8; 498 499 /** @hide Process is in the background running a backup/restore operation. */ 500 public static final int PROCESS_STATE_BACKUP = 9; 501 502 /** @hide Process is in the background, but it can't restore its state so we want 503 * to try to avoid killing it. */ 504 public static final int PROCESS_STATE_HEAVY_WEIGHT = 10; 505 506 /** @hide Process is in the background running a service. Unlike oom_adj, this level 507 * is used for both the normal running in background state and the executing 508 * operations state. */ 509 public static final int PROCESS_STATE_SERVICE = 11; 510 511 /** @hide Process is in the background running a receiver. Note that from the 512 * perspective of oom_adj receivers run at a higher foreground level, but for our 513 * prioritization here that is not necessary and putting them below services means 514 * many fewer changes in some process states as they receive broadcasts. */ 515 public static final int PROCESS_STATE_RECEIVER = 12; 516 517 /** @hide Process is in the background but hosts the home activity. */ 518 public static final int PROCESS_STATE_HOME = 13; 519 520 /** @hide Process is in the background but hosts the last shown activity. */ 521 public static final int PROCESS_STATE_LAST_ACTIVITY = 14; 522 523 /** @hide Process is being cached for later use and contains activities. */ 524 public static final int PROCESS_STATE_CACHED_ACTIVITY = 15; 525 526 /** @hide Process is being cached for later use and is a client of another cached 527 * process that contains activities. */ 528 public static final int PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16; 529 530 /** @hide Process is being cached for later use and is empty. */ 531 public static final int PROCESS_STATE_CACHED_EMPTY = 17; 532 533 /** @hide Process does not exist. */ 534 public static final int PROCESS_STATE_NONEXISTENT = 18; 535 536 /** @hide The lowest process state number */ 537 public static final int MIN_PROCESS_STATE = PROCESS_STATE_PERSISTENT; 538 539 /** @hide The highest process state number */ 540 public static final int MAX_PROCESS_STATE = PROCESS_STATE_NONEXISTENT; 541 542 /** @hide Should this process state be considered a background state? */ 543 public static final boolean isProcStateBackground(int procState) { 544 return procState >= PROCESS_STATE_TRANSIENT_BACKGROUND; 545 } 546 547 /** @hide requestType for assist context: only basic information. */ 548 public static final int ASSIST_CONTEXT_BASIC = 0; 549 550 /** @hide requestType for assist context: generate full AssistStructure. */ 551 public static final int ASSIST_CONTEXT_FULL = 1; 552 553 /** @hide requestType for assist context: generate full AssistStructure for autofill. */ 554 public static final int ASSIST_CONTEXT_AUTOFILL = 2; 555 556 /** @hide Flag for registerUidObserver: report changes in process state. */ 557 public static final int UID_OBSERVER_PROCSTATE = 1<<0; 558 559 /** @hide Flag for registerUidObserver: report uid gone. */ 560 public static final int UID_OBSERVER_GONE = 1<<1; 561 562 /** @hide Flag for registerUidObserver: report uid has become idle. */ 563 public static final int UID_OBSERVER_IDLE = 1<<2; 564 565 /** @hide Flag for registerUidObserver: report uid has become active. */ 566 public static final int UID_OBSERVER_ACTIVE = 1<<3; 567 568 /** @hide Flag for registerUidObserver: report uid cached state has changed. */ 569 public static final int UID_OBSERVER_CACHED = 1<<4; 570 571 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: normal free-to-run operation. */ 572 public static final int APP_START_MODE_NORMAL = 0; 573 574 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later. */ 575 public static final int APP_START_MODE_DELAYED = 1; 576 577 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: delay running until later, with 578 * rigid errors (throwing exception). */ 579 public static final int APP_START_MODE_DELAYED_RIGID = 2; 580 581 /** @hide Mode for {@link IActivityManager#isAppStartModeDisabled}: disable/cancel pending 582 * launches; this is the mode for ephemeral apps. */ 583 public static final int APP_START_MODE_DISABLED = 3; 584 585 /** 586 * Lock task mode is not active. 587 */ 588 public static final int LOCK_TASK_MODE_NONE = 0; 589 590 /** 591 * Full lock task mode is active. 592 */ 593 public static final int LOCK_TASK_MODE_LOCKED = 1; 594 595 /** 596 * App pinning mode is active. 597 */ 598 public static final int LOCK_TASK_MODE_PINNED = 2; 599 600 Point mAppTaskThumbnailSize; 601 602 /*package*/ ActivityManager(Context context, Handler handler) { 603 mContext = context; 604 } 605 606 /** 607 * Returns whether the launch was successful. 608 * @hide 609 */ 610 public static final boolean isStartResultSuccessful(int result) { 611 return FIRST_START_SUCCESS_CODE <= result && result <= LAST_START_SUCCESS_CODE; 612 } 613 614 /** 615 * Returns whether the launch result was a fatal error. 616 * @hide 617 */ 618 public static final boolean isStartResultFatalError(int result) { 619 return FIRST_START_FATAL_ERROR_CODE <= result && result <= LAST_START_FATAL_ERROR_CODE; 620 } 621 622 /** 623 * Screen compatibility mode: the application most always run in 624 * compatibility mode. 625 * @hide 626 */ 627 public static final int COMPAT_MODE_ALWAYS = -1; 628 629 /** 630 * Screen compatibility mode: the application can never run in 631 * compatibility mode. 632 * @hide 633 */ 634 public static final int COMPAT_MODE_NEVER = -2; 635 636 /** 637 * Screen compatibility mode: unknown. 638 * @hide 639 */ 640 public static final int COMPAT_MODE_UNKNOWN = -3; 641 642 /** 643 * Screen compatibility mode: the application currently has compatibility 644 * mode disabled. 645 * @hide 646 */ 647 public static final int COMPAT_MODE_DISABLED = 0; 648 649 /** 650 * Screen compatibility mode: the application currently has compatibility 651 * mode enabled. 652 * @hide 653 */ 654 public static final int COMPAT_MODE_ENABLED = 1; 655 656 /** 657 * Screen compatibility mode: request to toggle the application's 658 * compatibility mode. 659 * @hide 660 */ 661 public static final int COMPAT_MODE_TOGGLE = 2; 662 663 private static final boolean DEVELOPMENT_FORCE_LOW_RAM = 664 SystemProperties.getBoolean("debug.force_low_ram", false); 665 666 /** @hide */ 667 @TestApi 668 public static class StackId { 669 670 private StackId() { 671 } 672 673 /** Invalid stack ID. */ 674 public static final int INVALID_STACK_ID = -1; 675 676 /** First static stack ID. 677 * @hide */ 678 public static final int FIRST_STATIC_STACK_ID = 0; 679 680 /** Home activity stack ID. */ 681 public static final int HOME_STACK_ID = FIRST_STATIC_STACK_ID; 682 683 /** ID of stack where fullscreen activities are normally launched into. */ 684 public static final int FULLSCREEN_WORKSPACE_STACK_ID = 1; 685 686 /** ID of stack where freeform/resized activities are normally launched into. */ 687 public static final int FREEFORM_WORKSPACE_STACK_ID = FULLSCREEN_WORKSPACE_STACK_ID + 1; 688 689 /** ID of stack that occupies a dedicated region of the screen. */ 690 public static final int DOCKED_STACK_ID = FREEFORM_WORKSPACE_STACK_ID + 1; 691 692 /** ID of stack that always on top (always visible) when it exist. */ 693 public static final int PINNED_STACK_ID = DOCKED_STACK_ID + 1; 694 695 /** ID of stack that contains the Recents activity. */ 696 public static final int RECENTS_STACK_ID = PINNED_STACK_ID + 1; 697 698 /** ID of stack that contains activities launched by the assistant. */ 699 public static final int ASSISTANT_STACK_ID = RECENTS_STACK_ID + 1; 700 701 /** Last static stack stack ID. 702 * @hide */ 703 public static final int LAST_STATIC_STACK_ID = ASSISTANT_STACK_ID; 704 705 /** Start of ID range used by stacks that are created dynamically. 706 * @hide */ 707 public static final int FIRST_DYNAMIC_STACK_ID = LAST_STATIC_STACK_ID + 1; 708 709 // TODO: Figure-out a way to remove this. 710 /** @hide */ 711 public static boolean isStaticStack(int stackId) { 712 return stackId >= FIRST_STATIC_STACK_ID && stackId <= LAST_STATIC_STACK_ID; 713 } 714 715 // TODO: It seems this mostly means a stack on a secondary display now. Need to see if 716 // there are other meanings. If not why not just use information from the display? 717 /** @hide */ 718 public static boolean isDynamicStack(int stackId) { 719 return stackId >= FIRST_DYNAMIC_STACK_ID; 720 } 721 722 /** 723 * Returns true if dynamic stacks are allowed to be visible behind the input stack. 724 * @hide 725 */ 726 // TODO: Figure-out a way to remove. 727 public static boolean isDynamicStacksVisibleBehindAllowed(int stackId) { 728 return stackId == PINNED_STACK_ID || stackId == ASSISTANT_STACK_ID; 729 } 730 731 /** 732 * Returns true if we try to maintain focus in the current stack when the top activity 733 * finishes. 734 * @hide 735 */ 736 // TODO: Figure-out a way to remove. Probably isn't needed in the new world... 737 public static boolean keepFocusInStackIfPossible(int stackId) { 738 return stackId == FREEFORM_WORKSPACE_STACK_ID 739 || stackId == DOCKED_STACK_ID || stackId == PINNED_STACK_ID; 740 } 741 742 /** 743 * Returns true if the input stack is affected by drag resizing. 744 * @hide 745 */ 746 public static boolean isStackAffectedByDragResizing(int stackId) { 747 return isStaticStack(stackId) && stackId != PINNED_STACK_ID 748 && stackId != ASSISTANT_STACK_ID; 749 } 750 751 /** 752 * Returns true if the windows of tasks being moved to the target stack from the source 753 * stack should be replaced, meaning that window manager will keep the old window around 754 * until the new is ready. 755 * @hide 756 */ 757 public static boolean replaceWindowsOnTaskMove(int sourceStackId, int targetStackId) { 758 return sourceStackId == FREEFORM_WORKSPACE_STACK_ID 759 || targetStackId == FREEFORM_WORKSPACE_STACK_ID; 760 } 761 762 /** 763 * Return whether a stackId is a stack that be a backdrop to a translucent activity. These 764 * are generally fullscreen stacks. 765 * @hide 766 */ 767 public static boolean isBackdropToTranslucentActivity(int stackId) { 768 return stackId == FULLSCREEN_WORKSPACE_STACK_ID 769 || stackId == ASSISTANT_STACK_ID; 770 } 771 772 /** 773 * Returns true if activities from stasks in the given {@param stackId} are allowed to 774 * enter picture-in-picture. 775 * @hide 776 */ 777 public static boolean isAllowedToEnterPictureInPicture(int stackId) { 778 return stackId != HOME_STACK_ID && stackId != ASSISTANT_STACK_ID && 779 stackId != RECENTS_STACK_ID; 780 } 781 782 /** 783 * Returns true if the top task in the task is allowed to return home when finished and 784 * there are other tasks in the stack. 785 * @hide 786 */ 787 public static boolean allowTopTaskToReturnHome(int stackId) { 788 return stackId != PINNED_STACK_ID; 789 } 790 791 /** 792 * Returns true if the stack should be resized to match the bounds specified by 793 * {@link ActivityOptions#setLaunchBounds} when launching an activity into the stack. 794 * @hide 795 */ 796 public static boolean resizeStackWithLaunchBounds(int stackId) { 797 return stackId == PINNED_STACK_ID; 798 } 799 800 /** 801 * Returns true if a window from the specified stack with {@param stackId} are normally 802 * fullscreen, i. e. they can become the top opaque fullscreen window, meaning that it 803 * controls system bars, lockscreen occluded/dismissing state, screen rotation animation, 804 * etc. 805 * @hide 806 */ 807 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 808 public static boolean normallyFullscreenWindows(int stackId) { 809 return stackId != PINNED_STACK_ID && stackId != FREEFORM_WORKSPACE_STACK_ID 810 && stackId != DOCKED_STACK_ID; 811 } 812 813 /** 814 * Returns true if the input stack id should only be present on a device that supports 815 * multi-window mode. 816 * @see android.app.ActivityManager#supportsMultiWindow 817 * @hide 818 */ 819 // TODO: What about the other side of docked stack if we move this to WindowConfiguration? 820 public static boolean isMultiWindowStack(int stackId) { 821 return stackId == PINNED_STACK_ID || stackId == FREEFORM_WORKSPACE_STACK_ID 822 || stackId == DOCKED_STACK_ID; 823 } 824 825 /** 826 * Returns true if the input {@param stackId} is HOME_STACK_ID or RECENTS_STACK_ID 827 * @hide 828 */ 829 public static boolean isHomeOrRecentsStack(int stackId) { 830 return stackId == HOME_STACK_ID || stackId == RECENTS_STACK_ID; 831 } 832 833 /** Returns true if the input stack and its content can affect the device orientation. 834 * @hide */ 835 public static boolean canSpecifyOrientation(int stackId) { 836 return stackId == HOME_STACK_ID 837 || stackId == RECENTS_STACK_ID 838 || stackId == FULLSCREEN_WORKSPACE_STACK_ID 839 || stackId == ASSISTANT_STACK_ID 840 || isDynamicStack(stackId); 841 } 842 843 /** Returns the windowing mode that should be used for this input stack id. 844 * @hide */ 845 // TODO: To be removed once we are not using stack id for stuff... 846 public static int getWindowingModeForStackId(int stackId, boolean inSplitScreenMode) { 847 final int windowingMode; 848 switch (stackId) { 849 case FULLSCREEN_WORKSPACE_STACK_ID: 850 case HOME_STACK_ID: 851 case RECENTS_STACK_ID: 852 windowingMode = inSplitScreenMode 853 ? WINDOWING_MODE_SPLIT_SCREEN_SECONDARY : WINDOWING_MODE_FULLSCREEN; 854 break; 855 case ASSISTANT_STACK_ID: 856 windowingMode = WINDOWING_MODE_FULLSCREEN; 857 break; 858 case PINNED_STACK_ID: 859 windowingMode = WINDOWING_MODE_PINNED; 860 break; 861 case DOCKED_STACK_ID: 862 windowingMode = WINDOWING_MODE_SPLIT_SCREEN_PRIMARY; 863 break; 864 case FREEFORM_WORKSPACE_STACK_ID: 865 windowingMode = WINDOWING_MODE_FREEFORM; 866 break; 867 default : 868 windowingMode = WINDOWING_MODE_UNDEFINED; 869 } 870 return windowingMode; 871 } 872 873 /** Returns the stack id for the input windowing mode. 874 * @hide */ 875 // TODO: To be removed once we are not using stack id for stuff... 876 public static int getStackIdForWindowingMode(int windowingMode) { 877 switch (windowingMode) { 878 case WINDOWING_MODE_PINNED: return PINNED_STACK_ID; 879 case WINDOWING_MODE_FREEFORM: return FREEFORM_WORKSPACE_STACK_ID; 880 case WINDOWING_MODE_SPLIT_SCREEN_PRIMARY: return DOCKED_STACK_ID; 881 default: return INVALID_STACK_ID; 882 } 883 } 884 885 /** Returns the activity type that should be used for this input stack id. 886 * @hide */ 887 // TODO: To be removed once we are not using stack id for stuff... 888 public static int getActivityTypeForStackId(int stackId) { 889 final int activityType; 890 switch (stackId) { 891 case HOME_STACK_ID: 892 activityType = ACTIVITY_TYPE_HOME; 893 break; 894 case RECENTS_STACK_ID: 895 activityType = ACTIVITY_TYPE_RECENTS; 896 break; 897 case ASSISTANT_STACK_ID: 898 activityType = ACTIVITY_TYPE_ASSISTANT; 899 break; 900 default : 901 activityType = ACTIVITY_TYPE_STANDARD; 902 } 903 return activityType; 904 } 905 906 /** Returns the stack id for the input activity type. 907 * @hide */ 908 // TODO: To be removed once we are not using stack id for stuff... 909 public static int getStackIdForActivityType(int activityType) { 910 switch (activityType) { 911 case ACTIVITY_TYPE_HOME: return HOME_STACK_ID; 912 case ACTIVITY_TYPE_RECENTS: return RECENTS_STACK_ID; 913 case ACTIVITY_TYPE_ASSISTANT: return ASSISTANT_STACK_ID; 914 default: return INVALID_STACK_ID; 915 } 916 } 917 } 918 919 /** 920 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 921 * specifies the position of the created docked stack at the top half of the screen if 922 * in portrait mode or at the left half of the screen if in landscape mode. 923 * @hide 924 */ 925 public static final int DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT = 0; 926 927 /** 928 * Input parameter to {@link android.app.IActivityManager#moveTaskToDockedStack} which 929 * specifies the position of the created docked stack at the bottom half of the screen if 930 * in portrait mode or at the right half of the screen if in landscape mode. 931 * @hide 932 */ 933 public static final int DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT = 1; 934 935 /** 936 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 937 * that the resize doesn't need to preserve the window, and can be skipped if bounds 938 * is unchanged. This mode is used by window manager in most cases. 939 * @hide 940 */ 941 public static final int RESIZE_MODE_SYSTEM = 0; 942 943 /** 944 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 945 * that the resize should preserve the window if possible. 946 * @hide 947 */ 948 public static final int RESIZE_MODE_PRESERVE_WINDOW = (0x1 << 0); 949 950 /** 951 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 952 * that the resize should be performed even if the bounds appears unchanged. 953 * @hide 954 */ 955 public static final int RESIZE_MODE_FORCED = (0x1 << 1); 956 957 /** 958 * Input parameter to {@link android.app.IActivityManager#resizeTask} used by window 959 * manager during a screen rotation. 960 * @hide 961 */ 962 public static final int RESIZE_MODE_SYSTEM_SCREEN_ROTATION = RESIZE_MODE_PRESERVE_WINDOW; 963 964 /** 965 * Input parameter to {@link android.app.IActivityManager#resizeTask} used when the 966 * resize is due to a drag action. 967 * @hide 968 */ 969 public static final int RESIZE_MODE_USER = RESIZE_MODE_PRESERVE_WINDOW; 970 971 /** 972 * Input parameter to {@link android.app.IActivityManager#resizeTask} which indicates 973 * that the resize should preserve the window if possible, and should not be skipped 974 * even if the bounds is unchanged. Usually used to force a resizing when a drag action 975 * is ending. 976 * @hide 977 */ 978 public static final int RESIZE_MODE_USER_FORCED = 979 RESIZE_MODE_PRESERVE_WINDOW | RESIZE_MODE_FORCED; 980 981 /** @hide */ 982 public int getFrontActivityScreenCompatMode() { 983 try { 984 return getService().getFrontActivityScreenCompatMode(); 985 } catch (RemoteException e) { 986 throw e.rethrowFromSystemServer(); 987 } 988 } 989 990 /** @hide */ 991 public void setFrontActivityScreenCompatMode(int mode) { 992 try { 993 getService().setFrontActivityScreenCompatMode(mode); 994 } catch (RemoteException e) { 995 throw e.rethrowFromSystemServer(); 996 } 997 } 998 999 /** @hide */ 1000 public int getPackageScreenCompatMode(String packageName) { 1001 try { 1002 return getService().getPackageScreenCompatMode(packageName); 1003 } catch (RemoteException e) { 1004 throw e.rethrowFromSystemServer(); 1005 } 1006 } 1007 1008 /** @hide */ 1009 public void setPackageScreenCompatMode(String packageName, int mode) { 1010 try { 1011 getService().setPackageScreenCompatMode(packageName, mode); 1012 } catch (RemoteException e) { 1013 throw e.rethrowFromSystemServer(); 1014 } 1015 } 1016 1017 /** @hide */ 1018 public boolean getPackageAskScreenCompat(String packageName) { 1019 try { 1020 return getService().getPackageAskScreenCompat(packageName); 1021 } catch (RemoteException e) { 1022 throw e.rethrowFromSystemServer(); 1023 } 1024 } 1025 1026 /** @hide */ 1027 public void setPackageAskScreenCompat(String packageName, boolean ask) { 1028 try { 1029 getService().setPackageAskScreenCompat(packageName, ask); 1030 } catch (RemoteException e) { 1031 throw e.rethrowFromSystemServer(); 1032 } 1033 } 1034 1035 /** 1036 * Return the approximate per-application memory class of the current 1037 * device. This gives you an idea of how hard a memory limit you should 1038 * impose on your application to let the overall system work best. The 1039 * returned value is in megabytes; the baseline Android memory class is 1040 * 16 (which happens to be the Java heap limit of those devices); some 1041 * device with more memory may return 24 or even higher numbers. 1042 */ 1043 public int getMemoryClass() { 1044 return staticGetMemoryClass(); 1045 } 1046 1047 /** @hide */ 1048 static public int staticGetMemoryClass() { 1049 // Really brain dead right now -- just take this from the configured 1050 // vm heap size, and assume it is in megabytes and thus ends with "m". 1051 String vmHeapSize = SystemProperties.get("dalvik.vm.heapgrowthlimit", ""); 1052 if (vmHeapSize != null && !"".equals(vmHeapSize)) { 1053 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1)); 1054 } 1055 return staticGetLargeMemoryClass(); 1056 } 1057 1058 /** 1059 * Return the approximate per-application memory class of the current 1060 * device when an application is running with a large heap. This is the 1061 * space available for memory-intensive applications; most applications 1062 * should not need this amount of memory, and should instead stay with the 1063 * {@link #getMemoryClass()} limit. The returned value is in megabytes. 1064 * This may be the same size as {@link #getMemoryClass()} on memory 1065 * constrained devices, or it may be significantly larger on devices with 1066 * a large amount of available RAM. 1067 * 1068 * <p>The is the size of the application's Dalvik heap if it has 1069 * specified <code>android:largeHeap="true"</code> in its manifest. 1070 */ 1071 public int getLargeMemoryClass() { 1072 return staticGetLargeMemoryClass(); 1073 } 1074 1075 /** @hide */ 1076 static public int staticGetLargeMemoryClass() { 1077 // Really brain dead right now -- just take this from the configured 1078 // vm heap size, and assume it is in megabytes and thus ends with "m". 1079 String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m"); 1080 return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1)); 1081 } 1082 1083 /** 1084 * Returns true if this is a low-RAM device. Exactly whether a device is low-RAM 1085 * is ultimately up to the device configuration, but currently it generally means 1086 * something in the class of a 512MB device with about a 800x480 or less screen. 1087 * This is mostly intended to be used by apps to determine whether they should turn 1088 * off certain features that require more RAM. 1089 */ 1090 public boolean isLowRamDevice() { 1091 return isLowRamDeviceStatic(); 1092 } 1093 1094 /** @hide */ 1095 public static boolean isLowRamDeviceStatic() { 1096 return RoSystemProperties.CONFIG_LOW_RAM || 1097 (Build.IS_DEBUGGABLE && DEVELOPMENT_FORCE_LOW_RAM); 1098 } 1099 1100 /** 1101 * Returns true if this is a small battery device. Exactly whether a device is considered to be 1102 * small battery is ultimately up to the device configuration, but currently it generally means 1103 * something in the class of a device with 1000 mAh or less. This is mostly intended to be used 1104 * to determine whether certain features should be altered to account for a drastically smaller 1105 * battery. 1106 * @hide 1107 */ 1108 public static boolean isSmallBatteryDevice() { 1109 return RoSystemProperties.CONFIG_SMALL_BATTERY; 1110 } 1111 1112 /** 1113 * Used by persistent processes to determine if they are running on a 1114 * higher-end device so should be okay using hardware drawing acceleration 1115 * (which tends to consume a lot more RAM). 1116 * @hide 1117 */ 1118 static public boolean isHighEndGfx() { 1119 return !isLowRamDeviceStatic() && 1120 !Resources.getSystem().getBoolean(com.android.internal.R.bool.config_avoidGfxAccel); 1121 } 1122 1123 /** 1124 * Return the maximum number of recents entries that we will maintain and show. 1125 * @hide 1126 */ 1127 static public int getMaxRecentTasksStatic() { 1128 if (gMaxRecentTasks < 0) { 1129 return gMaxRecentTasks = isLowRamDeviceStatic() ? 36 : 48; 1130 } 1131 return gMaxRecentTasks; 1132 } 1133 1134 /** 1135 * Return the default limit on the number of recents that an app can make. 1136 * @hide 1137 */ 1138 static public int getDefaultAppRecentsLimitStatic() { 1139 return getMaxRecentTasksStatic() / 6; 1140 } 1141 1142 /** 1143 * Return the maximum limit on the number of recents that an app can make. 1144 * @hide 1145 */ 1146 static public int getMaxAppRecentsLimitStatic() { 1147 return getMaxRecentTasksStatic() / 2; 1148 } 1149 1150 /** 1151 * Returns true if the system supports at least one form of multi-window. 1152 * E.g. freeform, split-screen, picture-in-picture. 1153 * @hide 1154 */ 1155 @TestApi 1156 static public boolean supportsMultiWindow(Context context) { 1157 // On watches, multi-window is used to present essential system UI, and thus it must be 1158 // supported regardless of device memory characteristics. 1159 boolean isWatch = context.getPackageManager().hasSystemFeature( 1160 PackageManager.FEATURE_WATCH); 1161 return (!isLowRamDeviceStatic() || isWatch) 1162 && Resources.getSystem().getBoolean( 1163 com.android.internal.R.bool.config_supportsMultiWindow); 1164 } 1165 1166 /** 1167 * Returns true if the system supports split screen multi-window. 1168 * @hide 1169 */ 1170 @TestApi 1171 static public boolean supportsSplitScreenMultiWindow(Context context) { 1172 return supportsMultiWindow(context) 1173 && Resources.getSystem().getBoolean( 1174 com.android.internal.R.bool.config_supportsSplitScreenMultiWindow); 1175 } 1176 1177 /** @removed */ 1178 @Deprecated 1179 public static int getMaxNumPictureInPictureActions() { 1180 return 3; 1181 } 1182 1183 /** 1184 * Information you can set and retrieve about the current activity within the recent task list. 1185 */ 1186 public static class TaskDescription implements Parcelable { 1187 /** @hide */ 1188 public static final String ATTR_TASKDESCRIPTION_PREFIX = "task_description_"; 1189 private static final String ATTR_TASKDESCRIPTIONLABEL = 1190 ATTR_TASKDESCRIPTION_PREFIX + "label"; 1191 private static final String ATTR_TASKDESCRIPTIONCOLOR_PRIMARY = 1192 ATTR_TASKDESCRIPTION_PREFIX + "color"; 1193 private static final String ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND = 1194 ATTR_TASKDESCRIPTION_PREFIX + "colorBackground"; 1195 private static final String ATTR_TASKDESCRIPTIONICONFILENAME = 1196 ATTR_TASKDESCRIPTION_PREFIX + "icon_filename"; 1197 1198 private String mLabel; 1199 private Bitmap mIcon; 1200 private String mIconFilename; 1201 private int mColorPrimary; 1202 private int mColorBackground; 1203 private int mStatusBarColor; 1204 private int mNavigationBarColor; 1205 1206 /** 1207 * Creates the TaskDescription to the specified values. 1208 * 1209 * @param label A label and description of the current state of this task. 1210 * @param icon An icon that represents the current state of this task. 1211 * @param colorPrimary A color to override the theme's primary color. This color must be 1212 * opaque. 1213 */ 1214 public TaskDescription(String label, Bitmap icon, int colorPrimary) { 1215 this(label, icon, null, colorPrimary, 0, 0, 0); 1216 if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) { 1217 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1218 } 1219 } 1220 1221 /** 1222 * Creates the TaskDescription to the specified values. 1223 * 1224 * @param label A label and description of the current state of this activity. 1225 * @param icon An icon that represents the current state of this activity. 1226 */ 1227 public TaskDescription(String label, Bitmap icon) { 1228 this(label, icon, null, 0, 0, 0, 0); 1229 } 1230 1231 /** 1232 * Creates the TaskDescription to the specified values. 1233 * 1234 * @param label A label and description of the current state of this activity. 1235 */ 1236 public TaskDescription(String label) { 1237 this(label, null, null, 0, 0, 0, 0); 1238 } 1239 1240 /** 1241 * Creates an empty TaskDescription. 1242 */ 1243 public TaskDescription() { 1244 this(null, null, null, 0, 0, 0, 0); 1245 } 1246 1247 /** @hide */ 1248 public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary, 1249 int colorBackground, int statusBarColor, int navigationBarColor) { 1250 mLabel = label; 1251 mIcon = icon; 1252 mIconFilename = iconFilename; 1253 mColorPrimary = colorPrimary; 1254 mColorBackground = colorBackground; 1255 mStatusBarColor = statusBarColor; 1256 mNavigationBarColor = navigationBarColor; 1257 } 1258 1259 /** 1260 * Creates a copy of another TaskDescription. 1261 */ 1262 public TaskDescription(TaskDescription td) { 1263 copyFrom(td); 1264 } 1265 1266 /** 1267 * Copies this the values from another TaskDescription. 1268 * @hide 1269 */ 1270 public void copyFrom(TaskDescription other) { 1271 mLabel = other.mLabel; 1272 mIcon = other.mIcon; 1273 mIconFilename = other.mIconFilename; 1274 mColorPrimary = other.mColorPrimary; 1275 mColorBackground = other.mColorBackground; 1276 mStatusBarColor = other.mStatusBarColor; 1277 mNavigationBarColor = other.mNavigationBarColor; 1278 } 1279 1280 /** 1281 * Copies this the values from another TaskDescription, but preserves the hidden fields 1282 * if they weren't set on {@code other} 1283 * @hide 1284 */ 1285 public void copyFromPreserveHiddenFields(TaskDescription other) { 1286 mLabel = other.mLabel; 1287 mIcon = other.mIcon; 1288 mIconFilename = other.mIconFilename; 1289 mColorPrimary = other.mColorPrimary; 1290 if (other.mColorBackground != 0) { 1291 mColorBackground = other.mColorBackground; 1292 } 1293 if (other.mStatusBarColor != 0) { 1294 mStatusBarColor = other.mStatusBarColor; 1295 } 1296 if (other.mNavigationBarColor != 0) { 1297 mNavigationBarColor = other.mNavigationBarColor; 1298 } 1299 } 1300 1301 private TaskDescription(Parcel source) { 1302 readFromParcel(source); 1303 } 1304 1305 /** 1306 * Sets the label for this task description. 1307 * @hide 1308 */ 1309 public void setLabel(String label) { 1310 mLabel = label; 1311 } 1312 1313 /** 1314 * Sets the primary color for this task description. 1315 * @hide 1316 */ 1317 public void setPrimaryColor(int primaryColor) { 1318 // Ensure that the given color is valid 1319 if ((primaryColor != 0) && (Color.alpha(primaryColor) != 255)) { 1320 throw new RuntimeException("A TaskDescription's primary color should be opaque"); 1321 } 1322 mColorPrimary = primaryColor; 1323 } 1324 1325 /** 1326 * Sets the background color for this task description. 1327 * @hide 1328 */ 1329 public void setBackgroundColor(int backgroundColor) { 1330 // Ensure that the given color is valid 1331 if ((backgroundColor != 0) && (Color.alpha(backgroundColor) != 255)) { 1332 throw new RuntimeException("A TaskDescription's background color should be opaque"); 1333 } 1334 mColorBackground = backgroundColor; 1335 } 1336 1337 /** 1338 * @hide 1339 */ 1340 public void setStatusBarColor(int statusBarColor) { 1341 mStatusBarColor = statusBarColor; 1342 } 1343 1344 /** 1345 * @hide 1346 */ 1347 public void setNavigationBarColor(int navigationBarColor) { 1348 mNavigationBarColor = navigationBarColor; 1349 } 1350 1351 /** 1352 * Sets the icon for this task description. 1353 * @hide 1354 */ 1355 public void setIcon(Bitmap icon) { 1356 mIcon = icon; 1357 } 1358 1359 /** 1360 * Moves the icon bitmap reference from an actual Bitmap to a file containing the 1361 * bitmap. 1362 * @hide 1363 */ 1364 public void setIconFilename(String iconFilename) { 1365 mIconFilename = iconFilename; 1366 mIcon = null; 1367 } 1368 1369 /** 1370 * @return The label and description of the current state of this task. 1371 */ 1372 public String getLabel() { 1373 return mLabel; 1374 } 1375 1376 /** 1377 * @return The icon that represents the current state of this task. 1378 */ 1379 public Bitmap getIcon() { 1380 if (mIcon != null) { 1381 return mIcon; 1382 } 1383 return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId()); 1384 } 1385 1386 /** @hide */ 1387 public String getIconFilename() { 1388 return mIconFilename; 1389 } 1390 1391 /** @hide */ 1392 public Bitmap getInMemoryIcon() { 1393 return mIcon; 1394 } 1395 1396 /** @hide */ 1397 public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) { 1398 if (iconFilename != null) { 1399 try { 1400 return getService().getTaskDescriptionIcon(iconFilename, 1401 userId); 1402 } catch (RemoteException e) { 1403 throw e.rethrowFromSystemServer(); 1404 } 1405 } 1406 return null; 1407 } 1408 1409 /** 1410 * @return The color override on the theme's primary color. 1411 */ 1412 public int getPrimaryColor() { 1413 return mColorPrimary; 1414 } 1415 1416 /** 1417 * @return The background color. 1418 * @hide 1419 */ 1420 public int getBackgroundColor() { 1421 return mColorBackground; 1422 } 1423 1424 /** 1425 * @hide 1426 */ 1427 public int getStatusBarColor() { 1428 return mStatusBarColor; 1429 } 1430 1431 /** 1432 * @hide 1433 */ 1434 public int getNavigationBarColor() { 1435 return mNavigationBarColor; 1436 } 1437 1438 /** @hide */ 1439 public void saveToXml(XmlSerializer out) throws IOException { 1440 if (mLabel != null) { 1441 out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, mLabel); 1442 } 1443 if (mColorPrimary != 0) { 1444 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_PRIMARY, 1445 Integer.toHexString(mColorPrimary)); 1446 } 1447 if (mColorBackground != 0) { 1448 out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND, 1449 Integer.toHexString(mColorBackground)); 1450 } 1451 if (mIconFilename != null) { 1452 out.attribute(null, ATTR_TASKDESCRIPTIONICONFILENAME, mIconFilename); 1453 } 1454 } 1455 1456 /** @hide */ 1457 public void restoreFromXml(String attrName, String attrValue) { 1458 if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { 1459 setLabel(attrValue); 1460 } else if (ATTR_TASKDESCRIPTIONCOLOR_PRIMARY.equals(attrName)) { 1461 setPrimaryColor((int) Long.parseLong(attrValue, 16)); 1462 } else if (ATTR_TASKDESCRIPTIONCOLOR_BACKGROUND.equals(attrName)) { 1463 setBackgroundColor((int) Long.parseLong(attrValue, 16)); 1464 } else if (ATTR_TASKDESCRIPTIONICONFILENAME.equals(attrName)) { 1465 setIconFilename(attrValue); 1466 } 1467 } 1468 1469 @Override 1470 public int describeContents() { 1471 return 0; 1472 } 1473 1474 @Override 1475 public void writeToParcel(Parcel dest, int flags) { 1476 if (mLabel == null) { 1477 dest.writeInt(0); 1478 } else { 1479 dest.writeInt(1); 1480 dest.writeString(mLabel); 1481 } 1482 if (mIcon == null) { 1483 dest.writeInt(0); 1484 } else { 1485 dest.writeInt(1); 1486 mIcon.writeToParcel(dest, 0); 1487 } 1488 dest.writeInt(mColorPrimary); 1489 dest.writeInt(mColorBackground); 1490 dest.writeInt(mStatusBarColor); 1491 dest.writeInt(mNavigationBarColor); 1492 if (mIconFilename == null) { 1493 dest.writeInt(0); 1494 } else { 1495 dest.writeInt(1); 1496 dest.writeString(mIconFilename); 1497 } 1498 } 1499 1500 public void readFromParcel(Parcel source) { 1501 mLabel = source.readInt() > 0 ? source.readString() : null; 1502 mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null; 1503 mColorPrimary = source.readInt(); 1504 mColorBackground = source.readInt(); 1505 mStatusBarColor = source.readInt(); 1506 mNavigationBarColor = source.readInt(); 1507 mIconFilename = source.readInt() > 0 ? source.readString() : null; 1508 } 1509 1510 public static final Creator<TaskDescription> CREATOR 1511 = new Creator<TaskDescription>() { 1512 public TaskDescription createFromParcel(Parcel source) { 1513 return new TaskDescription(source); 1514 } 1515 public TaskDescription[] newArray(int size) { 1516 return new TaskDescription[size]; 1517 } 1518 }; 1519 1520 @Override 1521 public String toString() { 1522 return "TaskDescription Label: " + mLabel + " Icon: " + mIcon + 1523 " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary + 1524 " colorBackground: " + mColorBackground + 1525 " statusBarColor: " + mColorBackground + 1526 " navigationBarColor: " + mNavigationBarColor; 1527 } 1528 } 1529 1530 /** 1531 * Information you can retrieve about tasks that the user has most recently 1532 * started or visited. 1533 */ 1534 public static class RecentTaskInfo implements Parcelable { 1535 /** 1536 * If this task is currently running, this is the identifier for it. 1537 * If it is not running, this will be -1. 1538 */ 1539 public int id; 1540 1541 /** 1542 * The true identifier of this task, valid even if it is not running. 1543 */ 1544 public int persistentId; 1545 1546 /** 1547 * The original Intent used to launch the task. You can use this 1548 * Intent to re-launch the task (if it is no longer running) or bring 1549 * the current task to the front. 1550 */ 1551 public Intent baseIntent; 1552 1553 /** 1554 * If this task was started from an alias, this is the actual 1555 * activity component that was initially started; the component of 1556 * the baseIntent in this case is the name of the actual activity 1557 * implementation that the alias referred to. Otherwise, this is null. 1558 */ 1559 public ComponentName origActivity; 1560 1561 /** 1562 * The actual activity component that started the task. 1563 * @hide 1564 */ 1565 @Nullable 1566 public ComponentName realActivity; 1567 1568 /** 1569 * Description of the task's last state. 1570 */ 1571 public CharSequence description; 1572 1573 /** 1574 * The id of the ActivityStack this Task was on most recently. 1575 * @hide 1576 */ 1577 public int stackId; 1578 1579 /** 1580 * The id of the user the task was running as. 1581 * @hide 1582 */ 1583 public int userId; 1584 1585 /** 1586 * The first time this task was active. 1587 * @hide 1588 */ 1589 public long firstActiveTime; 1590 1591 /** 1592 * The last time this task was active. 1593 * @hide 1594 */ 1595 public long lastActiveTime; 1596 1597 /** 1598 * The recent activity values for the highest activity in the stack to have set the values. 1599 * {@link Activity#setTaskDescription(android.app.ActivityManager.TaskDescription)}. 1600 */ 1601 public TaskDescription taskDescription; 1602 1603 /** 1604 * Task affiliation for grouping with other tasks. 1605 */ 1606 public int affiliatedTaskId; 1607 1608 /** 1609 * Task affiliation color of the source task with the affiliated task id. 1610 * 1611 * @hide 1612 */ 1613 public int affiliatedTaskColor; 1614 1615 /** 1616 * The component launched as the first activity in the task. 1617 * This can be considered the "application" of this task. 1618 */ 1619 public ComponentName baseActivity; 1620 1621 /** 1622 * The activity component at the top of the history stack of the task. 1623 * This is what the user is currently doing. 1624 */ 1625 public ComponentName topActivity; 1626 1627 /** 1628 * Number of activities in this task. 1629 */ 1630 public int numActivities; 1631 1632 /** 1633 * The bounds of the task. 1634 * @hide 1635 */ 1636 public Rect bounds; 1637 1638 /** 1639 * True if the task can go in the docked stack. 1640 * @hide 1641 */ 1642 public boolean supportsSplitScreenMultiWindow; 1643 1644 /** 1645 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1646 * @hide 1647 */ 1648 public int resizeMode; 1649 1650 public RecentTaskInfo() { 1651 } 1652 1653 @Override 1654 public int describeContents() { 1655 return 0; 1656 } 1657 1658 @Override 1659 public void writeToParcel(Parcel dest, int flags) { 1660 dest.writeInt(id); 1661 dest.writeInt(persistentId); 1662 if (baseIntent != null) { 1663 dest.writeInt(1); 1664 baseIntent.writeToParcel(dest, 0); 1665 } else { 1666 dest.writeInt(0); 1667 } 1668 ComponentName.writeToParcel(origActivity, dest); 1669 ComponentName.writeToParcel(realActivity, dest); 1670 TextUtils.writeToParcel(description, dest, 1671 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1672 if (taskDescription != null) { 1673 dest.writeInt(1); 1674 taskDescription.writeToParcel(dest, 0); 1675 } else { 1676 dest.writeInt(0); 1677 } 1678 dest.writeInt(stackId); 1679 dest.writeInt(userId); 1680 dest.writeLong(firstActiveTime); 1681 dest.writeLong(lastActiveTime); 1682 dest.writeInt(affiliatedTaskId); 1683 dest.writeInt(affiliatedTaskColor); 1684 ComponentName.writeToParcel(baseActivity, dest); 1685 ComponentName.writeToParcel(topActivity, dest); 1686 dest.writeInt(numActivities); 1687 if (bounds != null) { 1688 dest.writeInt(1); 1689 bounds.writeToParcel(dest, 0); 1690 } else { 1691 dest.writeInt(0); 1692 } 1693 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1694 dest.writeInt(resizeMode); 1695 } 1696 1697 public void readFromParcel(Parcel source) { 1698 id = source.readInt(); 1699 persistentId = source.readInt(); 1700 baseIntent = source.readInt() > 0 ? Intent.CREATOR.createFromParcel(source) : null; 1701 origActivity = ComponentName.readFromParcel(source); 1702 realActivity = ComponentName.readFromParcel(source); 1703 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1704 taskDescription = source.readInt() > 0 ? 1705 TaskDescription.CREATOR.createFromParcel(source) : null; 1706 stackId = source.readInt(); 1707 userId = source.readInt(); 1708 firstActiveTime = source.readLong(); 1709 lastActiveTime = source.readLong(); 1710 affiliatedTaskId = source.readInt(); 1711 affiliatedTaskColor = source.readInt(); 1712 baseActivity = ComponentName.readFromParcel(source); 1713 topActivity = ComponentName.readFromParcel(source); 1714 numActivities = source.readInt(); 1715 bounds = source.readInt() > 0 ? 1716 Rect.CREATOR.createFromParcel(source) : null; 1717 supportsSplitScreenMultiWindow = source.readInt() == 1; 1718 resizeMode = source.readInt(); 1719 } 1720 1721 public static final Creator<RecentTaskInfo> CREATOR 1722 = new Creator<RecentTaskInfo>() { 1723 public RecentTaskInfo createFromParcel(Parcel source) { 1724 return new RecentTaskInfo(source); 1725 } 1726 public RecentTaskInfo[] newArray(int size) { 1727 return new RecentTaskInfo[size]; 1728 } 1729 }; 1730 1731 private RecentTaskInfo(Parcel source) { 1732 readFromParcel(source); 1733 } 1734 } 1735 1736 /** 1737 * Flag for use with {@link #getRecentTasks}: return all tasks, even those 1738 * that have set their 1739 * {@link android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag. 1740 */ 1741 public static final int RECENT_WITH_EXCLUDED = 0x0001; 1742 1743 /** 1744 * Provides a list that does not contain any 1745 * recent tasks that currently are not available to the user. 1746 */ 1747 public static final int RECENT_IGNORE_UNAVAILABLE = 0x0002; 1748 1749 /** 1750 * Provides a list that contains recent tasks for all 1751 * profiles of a user. 1752 * @hide 1753 */ 1754 public static final int RECENT_INCLUDE_PROFILES = 0x0004; 1755 1756 /** 1757 * Ignores all tasks that are on the home stack. 1758 * @hide 1759 */ 1760 public static final int RECENT_IGNORE_HOME_AND_RECENTS_STACK_TASKS = 0x0008; 1761 1762 /** 1763 * Ignores the top task in the docked stack. 1764 * @hide 1765 */ 1766 public static final int RECENT_INGORE_DOCKED_STACK_TOP_TASK = 0x0010; 1767 1768 /** 1769 * Ignores all tasks that are on the pinned stack. 1770 * @hide 1771 */ 1772 public static final int RECENT_INGORE_PINNED_STACK_TASKS = 0x0020; 1773 1774 /** 1775 * <p></p>Return a list of the tasks that the user has recently launched, with 1776 * the most recent being first and older ones after in order. 1777 * 1778 * <p><b>Note: this method is only intended for debugging and presenting 1779 * task management user interfaces</b>. This should never be used for 1780 * core logic in an application, such as deciding between different 1781 * behaviors based on the information found here. Such uses are 1782 * <em>not</em> supported, and will likely break in the future. For 1783 * example, if multiple applications can be actively running at the 1784 * same time, assumptions made about the meaning of the data here for 1785 * purposes of control flow will be incorrect.</p> 1786 * 1787 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method is 1788 * no longer available to third party applications: the introduction of 1789 * document-centric recents means 1790 * it can leak personal information to the caller. For backwards compatibility, 1791 * it will still return a small subset of its data: at least the caller's 1792 * own tasks (though see {@link #getAppTasks()} for the correct supported 1793 * way to retrieve that information), and possibly some other tasks 1794 * such as home that are known to not be sensitive. 1795 * 1796 * @param maxNum The maximum number of entries to return in the list. The 1797 * actual number returned may be smaller, depending on how many tasks the 1798 * user has started and the maximum number the system can remember. 1799 * @param flags Information about what to return. May be any combination 1800 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1801 * 1802 * @return Returns a list of RecentTaskInfo records describing each of 1803 * the recent tasks. 1804 */ 1805 @Deprecated 1806 public List<RecentTaskInfo> getRecentTasks(int maxNum, int flags) 1807 throws SecurityException { 1808 try { 1809 return getService().getRecentTasks(maxNum, 1810 flags, UserHandle.myUserId()).getList(); 1811 } catch (RemoteException e) { 1812 throw e.rethrowFromSystemServer(); 1813 } 1814 } 1815 1816 /** 1817 * Same as {@link #getRecentTasks(int, int)} but returns the recent tasks for a 1818 * specific user. It requires holding 1819 * the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} permission. 1820 * @param maxNum The maximum number of entries to return in the list. The 1821 * actual number returned may be smaller, depending on how many tasks the 1822 * user has started and the maximum number the system can remember. 1823 * @param flags Information about what to return. May be any combination 1824 * of {@link #RECENT_WITH_EXCLUDED} and {@link #RECENT_IGNORE_UNAVAILABLE}. 1825 * 1826 * @return Returns a list of RecentTaskInfo records describing each of 1827 * the recent tasks. Most recently activated tasks go first. 1828 * 1829 * @hide 1830 */ 1831 public List<RecentTaskInfo> getRecentTasksForUser(int maxNum, int flags, int userId) 1832 throws SecurityException { 1833 try { 1834 return getService().getRecentTasks(maxNum, 1835 flags, userId).getList(); 1836 } catch (RemoteException e) { 1837 throw e.rethrowFromSystemServer(); 1838 } 1839 } 1840 1841 /** 1842 * Information you can retrieve about a particular task that is currently 1843 * "running" in the system. Note that a running task does not mean the 1844 * given task actually has a process it is actively running in; it simply 1845 * means that the user has gone to it and never closed it, but currently 1846 * the system may have killed its process and is only holding on to its 1847 * last state in order to restart it when the user returns. 1848 */ 1849 public static class RunningTaskInfo implements Parcelable { 1850 /** 1851 * A unique identifier for this task. 1852 */ 1853 public int id; 1854 1855 /** 1856 * The stack that currently contains this task. 1857 * @hide 1858 */ 1859 public int stackId; 1860 1861 /** 1862 * The component launched as the first activity in the task. This can 1863 * be considered the "application" of this task. 1864 */ 1865 public ComponentName baseActivity; 1866 1867 /** 1868 * The activity component at the top of the history stack of the task. 1869 * This is what the user is currently doing. 1870 */ 1871 public ComponentName topActivity; 1872 1873 /** 1874 * Thumbnail representation of the task's current state. Currently 1875 * always null. 1876 */ 1877 public Bitmap thumbnail; 1878 1879 /** 1880 * Description of the task's current state. 1881 */ 1882 public CharSequence description; 1883 1884 /** 1885 * Number of activities in this task. 1886 */ 1887 public int numActivities; 1888 1889 /** 1890 * Number of activities that are currently running (not stopped 1891 * and persisted) in this task. 1892 */ 1893 public int numRunning; 1894 1895 /** 1896 * Last time task was run. For sorting. 1897 * @hide 1898 */ 1899 public long lastActiveTime; 1900 1901 /** 1902 * True if the task can go in the docked stack. 1903 * @hide 1904 */ 1905 public boolean supportsSplitScreenMultiWindow; 1906 1907 /** 1908 * The resize mode of the task. See {@link ActivityInfo#resizeMode}. 1909 * @hide 1910 */ 1911 public int resizeMode; 1912 1913 public RunningTaskInfo() { 1914 } 1915 1916 public int describeContents() { 1917 return 0; 1918 } 1919 1920 public void writeToParcel(Parcel dest, int flags) { 1921 dest.writeInt(id); 1922 dest.writeInt(stackId); 1923 ComponentName.writeToParcel(baseActivity, dest); 1924 ComponentName.writeToParcel(topActivity, dest); 1925 if (thumbnail != null) { 1926 dest.writeInt(1); 1927 thumbnail.writeToParcel(dest, 0); 1928 } else { 1929 dest.writeInt(0); 1930 } 1931 TextUtils.writeToParcel(description, dest, 1932 Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1933 dest.writeInt(numActivities); 1934 dest.writeInt(numRunning); 1935 dest.writeInt(supportsSplitScreenMultiWindow ? 1 : 0); 1936 dest.writeInt(resizeMode); 1937 } 1938 1939 public void readFromParcel(Parcel source) { 1940 id = source.readInt(); 1941 stackId = source.readInt(); 1942 baseActivity = ComponentName.readFromParcel(source); 1943 topActivity = ComponentName.readFromParcel(source); 1944 if (source.readInt() != 0) { 1945 thumbnail = Bitmap.CREATOR.createFromParcel(source); 1946 } else { 1947 thumbnail = null; 1948 } 1949 description = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(source); 1950 numActivities = source.readInt(); 1951 numRunning = source.readInt(); 1952 supportsSplitScreenMultiWindow = source.readInt() != 0; 1953 resizeMode = source.readInt(); 1954 } 1955 1956 public static final Creator<RunningTaskInfo> CREATOR = new Creator<RunningTaskInfo>() { 1957 public RunningTaskInfo createFromParcel(Parcel source) { 1958 return new RunningTaskInfo(source); 1959 } 1960 public RunningTaskInfo[] newArray(int size) { 1961 return new RunningTaskInfo[size]; 1962 } 1963 }; 1964 1965 private RunningTaskInfo(Parcel source) { 1966 readFromParcel(source); 1967 } 1968 } 1969 1970 /** 1971 * Get the list of tasks associated with the calling application. 1972 * 1973 * @return The list of tasks associated with the application making this call. 1974 * @throws SecurityException 1975 */ 1976 public List<ActivityManager.AppTask> getAppTasks() { 1977 ArrayList<AppTask> tasks = new ArrayList<AppTask>(); 1978 List<IBinder> appTasks; 1979 try { 1980 appTasks = getService().getAppTasks(mContext.getPackageName()); 1981 } catch (RemoteException e) { 1982 throw e.rethrowFromSystemServer(); 1983 } 1984 int numAppTasks = appTasks.size(); 1985 for (int i = 0; i < numAppTasks; i++) { 1986 tasks.add(new AppTask(IAppTask.Stub.asInterface(appTasks.get(i)))); 1987 } 1988 return tasks; 1989 } 1990 1991 /** 1992 * Return the current design dimensions for {@link AppTask} thumbnails, for use 1993 * with {@link #addAppTask}. 1994 */ 1995 public Size getAppTaskThumbnailSize() { 1996 synchronized (this) { 1997 ensureAppTaskThumbnailSizeLocked(); 1998 return new Size(mAppTaskThumbnailSize.x, mAppTaskThumbnailSize.y); 1999 } 2000 } 2001 2002 private void ensureAppTaskThumbnailSizeLocked() { 2003 if (mAppTaskThumbnailSize == null) { 2004 try { 2005 mAppTaskThumbnailSize = getService().getAppTaskThumbnailSize(); 2006 } catch (RemoteException e) { 2007 throw e.rethrowFromSystemServer(); 2008 } 2009 } 2010 } 2011 2012 /** 2013 * Add a new {@link AppTask} for the calling application. This will create a new 2014 * recents entry that is added to the <b>end</b> of all existing recents. 2015 * 2016 * @param activity The activity that is adding the entry. This is used to help determine 2017 * the context that the new recents entry will be in. 2018 * @param intent The Intent that describes the recents entry. This is the same Intent that 2019 * you would have used to launch the activity for it. In generally you will want to set 2020 * both {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT} and 2021 * {@link Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS}; the latter is required since this recents 2022 * entry will exist without an activity, so it doesn't make sense to not retain it when 2023 * its activity disappears. The given Intent here also must have an explicit ComponentName 2024 * set on it. 2025 * @param description Optional additional description information. 2026 * @param thumbnail Thumbnail to use for the recents entry. Should be the size given by 2027 * {@link #getAppTaskThumbnailSize()}. If the bitmap is not that exact size, it will be 2028 * recreated in your process, probably in a way you don't like, before the recents entry 2029 * is added. 2030 * 2031 * @return Returns the task id of the newly added app task, or -1 if the add failed. The 2032 * most likely cause of failure is that there is no more room for more tasks for your app. 2033 */ 2034 public int addAppTask(@NonNull Activity activity, @NonNull Intent intent, 2035 @Nullable TaskDescription description, @NonNull Bitmap thumbnail) { 2036 Point size; 2037 synchronized (this) { 2038 ensureAppTaskThumbnailSizeLocked(); 2039 size = mAppTaskThumbnailSize; 2040 } 2041 final int tw = thumbnail.getWidth(); 2042 final int th = thumbnail.getHeight(); 2043 if (tw != size.x || th != size.y) { 2044 Bitmap bm = Bitmap.createBitmap(size.x, size.y, thumbnail.getConfig()); 2045 2046 // Use ScaleType.CENTER_CROP, except we leave the top edge at the top. 2047 float scale; 2048 float dx = 0, dy = 0; 2049 if (tw * size.x > size.y * th) { 2050 scale = (float) size.x / (float) th; 2051 dx = (size.y - tw * scale) * 0.5f; 2052 } else { 2053 scale = (float) size.y / (float) tw; 2054 dy = (size.x - th * scale) * 0.5f; 2055 } 2056 Matrix matrix = new Matrix(); 2057 matrix.setScale(scale, scale); 2058 matrix.postTranslate((int) (dx + 0.5f), 0); 2059 2060 Canvas canvas = new Canvas(bm); 2061 canvas.drawBitmap(thumbnail, matrix, null); 2062 canvas.setBitmap(null); 2063 2064 thumbnail = bm; 2065 } 2066 if (description == null) { 2067 description = new TaskDescription(); 2068 } 2069 try { 2070 return getService().addAppTask(activity.getActivityToken(), 2071 intent, description, thumbnail); 2072 } catch (RemoteException e) { 2073 throw e.rethrowFromSystemServer(); 2074 } 2075 } 2076 2077 /** 2078 * Return a list of the tasks that are currently running, with 2079 * the most recent being first and older ones after in order. Note that 2080 * "running" does not mean any of the task's code is currently loaded or 2081 * activity -- the task may have been frozen by the system, so that it 2082 * can be restarted in its previous state when next brought to the 2083 * foreground. 2084 * 2085 * <p><b>Note: this method is only intended for debugging and presenting 2086 * task management user interfaces</b>. This should never be used for 2087 * core logic in an application, such as deciding between different 2088 * behaviors based on the information found here. Such uses are 2089 * <em>not</em> supported, and will likely break in the future. For 2090 * example, if multiple applications can be actively running at the 2091 * same time, assumptions made about the meaning of the data here for 2092 * purposes of control flow will be incorrect.</p> 2093 * 2094 * @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this method 2095 * is no longer available to third party 2096 * applications: the introduction of document-centric recents means 2097 * it can leak person information to the caller. For backwards compatibility, 2098 * it will still return a small subset of its data: at least the caller's 2099 * own tasks, and possibly some other tasks 2100 * such as home that are known to not be sensitive. 2101 * 2102 * @param maxNum The maximum number of entries to return in the list. The 2103 * actual number returned may be smaller, depending on how many tasks the 2104 * user has started. 2105 * 2106 * @return Returns a list of RunningTaskInfo records describing each of 2107 * the running tasks. 2108 */ 2109 @Deprecated 2110 public List<RunningTaskInfo> getRunningTasks(int maxNum) 2111 throws SecurityException { 2112 try { 2113 return getService().getTasks(maxNum, 0); 2114 } catch (RemoteException e) { 2115 throw e.rethrowFromSystemServer(); 2116 } 2117 } 2118 2119 /** 2120 * Completely remove the given task. 2121 * 2122 * @param taskId Identifier of the task to be removed. 2123 * @return Returns true if the given task was found and removed. 2124 * 2125 * @hide 2126 */ 2127 public boolean removeTask(int taskId) throws SecurityException { 2128 try { 2129 return getService().removeTask(taskId); 2130 } catch (RemoteException e) { 2131 throw e.rethrowFromSystemServer(); 2132 } 2133 } 2134 2135 /** 2136 * Represents a task snapshot. 2137 * @hide 2138 */ 2139 public static class TaskSnapshot implements Parcelable { 2140 2141 private final GraphicBuffer mSnapshot; 2142 private final int mOrientation; 2143 private final Rect mContentInsets; 2144 private final boolean mReducedResolution; 2145 private final float mScale; 2146 2147 public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets, 2148 boolean reducedResolution, float scale) { 2149 mSnapshot = snapshot; 2150 mOrientation = orientation; 2151 mContentInsets = new Rect(contentInsets); 2152 mReducedResolution = reducedResolution; 2153 mScale = scale; 2154 } 2155 2156 private TaskSnapshot(Parcel source) { 2157 mSnapshot = source.readParcelable(null /* classLoader */); 2158 mOrientation = source.readInt(); 2159 mContentInsets = source.readParcelable(null /* classLoader */); 2160 mReducedResolution = source.readBoolean(); 2161 mScale = source.readFloat(); 2162 } 2163 2164 /** 2165 * @return The graphic buffer representing the screenshot. 2166 */ 2167 public GraphicBuffer getSnapshot() { 2168 return mSnapshot; 2169 } 2170 2171 /** 2172 * @return The screen orientation the screenshot was taken in. 2173 */ 2174 public int getOrientation() { 2175 return mOrientation; 2176 } 2177 2178 /** 2179 * @return The system/content insets on the snapshot. These can be clipped off in order to 2180 * remove any areas behind system bars in the snapshot. 2181 */ 2182 public Rect getContentInsets() { 2183 return mContentInsets; 2184 } 2185 2186 /** 2187 * @return Whether this snapshot is a down-sampled version of the full resolution. 2188 */ 2189 public boolean isReducedResolution() { 2190 return mReducedResolution; 2191 } 2192 2193 /** 2194 * @return The scale this snapshot was taken in. 2195 */ 2196 public float getScale() { 2197 return mScale; 2198 } 2199 2200 @Override 2201 public int describeContents() { 2202 return 0; 2203 } 2204 2205 @Override 2206 public void writeToParcel(Parcel dest, int flags) { 2207 dest.writeParcelable(mSnapshot, 0); 2208 dest.writeInt(mOrientation); 2209 dest.writeParcelable(mContentInsets, 0); 2210 dest.writeBoolean(mReducedResolution); 2211 dest.writeFloat(mScale); 2212 } 2213 2214 @Override 2215 public String toString() { 2216 return "TaskSnapshot{mSnapshot=" + mSnapshot + " mOrientation=" + mOrientation 2217 + " mContentInsets=" + mContentInsets.toShortString() 2218 + " mReducedResolution=" + mReducedResolution + " mScale=" + mScale; 2219 } 2220 2221 public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() { 2222 public TaskSnapshot createFromParcel(Parcel source) { 2223 return new TaskSnapshot(source); 2224 } 2225 public TaskSnapshot[] newArray(int size) { 2226 return new TaskSnapshot[size]; 2227 } 2228 }; 2229 } 2230 2231 /** @hide */ 2232 @IntDef(flag = true, prefix = { "MOVE_TASK_" }, value = { 2233 MOVE_TASK_WITH_HOME, 2234 MOVE_TASK_NO_USER_ACTION, 2235 }) 2236 @Retention(RetentionPolicy.SOURCE) 2237 public @interface MoveTaskFlags {} 2238 2239 /** 2240 * Flag for {@link #moveTaskToFront(int, int)}: also move the "home" 2241 * activity along with the task, so it is positioned immediately behind 2242 * the task. 2243 */ 2244 public static final int MOVE_TASK_WITH_HOME = 0x00000001; 2245 2246 /** 2247 * Flag for {@link #moveTaskToFront(int, int)}: don't count this as a 2248 * user-instigated action, so the current activity will not receive a 2249 * hint that the user is leaving. 2250 */ 2251 public static final int MOVE_TASK_NO_USER_ACTION = 0x00000002; 2252 2253 /** 2254 * Equivalent to calling {@link #moveTaskToFront(int, int, Bundle)} 2255 * with a null options argument. 2256 * 2257 * @param taskId The identifier of the task to be moved, as found in 2258 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2259 * @param flags Additional operational flags. 2260 */ 2261 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2262 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags) { 2263 moveTaskToFront(taskId, flags, null); 2264 } 2265 2266 /** 2267 * Ask that the task associated with a given task ID be moved to the 2268 * front of the stack, so it is now visible to the user. 2269 * 2270 * @param taskId The identifier of the task to be moved, as found in 2271 * {@link RunningTaskInfo} or {@link RecentTaskInfo}. 2272 * @param flags Additional operational flags. 2273 * @param options Additional options for the operation, either null or 2274 * as per {@link Context#startActivity(Intent, android.os.Bundle) 2275 * Context.startActivity(Intent, Bundle)}. 2276 */ 2277 @RequiresPermission(android.Manifest.permission.REORDER_TASKS) 2278 public void moveTaskToFront(int taskId, @MoveTaskFlags int flags, Bundle options) { 2279 try { 2280 getService().moveTaskToFront(taskId, flags, options); 2281 } catch (RemoteException e) { 2282 throw e.rethrowFromSystemServer(); 2283 } 2284 } 2285 2286 /** 2287 * Information you can retrieve about a particular Service that is 2288 * currently running in the system. 2289 */ 2290 public static class RunningServiceInfo implements Parcelable { 2291 /** 2292 * The service component. 2293 */ 2294 public ComponentName service; 2295 2296 /** 2297 * If non-zero, this is the process the service is running in. 2298 */ 2299 public int pid; 2300 2301 /** 2302 * The UID that owns this service. 2303 */ 2304 public int uid; 2305 2306 /** 2307 * The name of the process this service runs in. 2308 */ 2309 public String process; 2310 2311 /** 2312 * Set to true if the service has asked to run as a foreground process. 2313 */ 2314 public boolean foreground; 2315 2316 /** 2317 * The time when the service was first made active, either by someone 2318 * starting or binding to it. This 2319 * is in units of {@link android.os.SystemClock#elapsedRealtime()}. 2320 */ 2321 public long activeSince; 2322 2323 /** 2324 * Set to true if this service has been explicitly started. 2325 */ 2326 public boolean started; 2327 2328 /** 2329 * Number of clients connected to the service. 2330 */ 2331 public int clientCount; 2332 2333 /** 2334 * Number of times the service's process has crashed while the service 2335 * is running. 2336 */ 2337 public int crashCount; 2338 2339 /** 2340 * The time when there was last activity in the service (either 2341 * explicit requests to start it or clients binding to it). This 2342 * is in units of {@link android.os.SystemClock#uptimeMillis()}. 2343 */ 2344 public long lastActivityTime; 2345 2346 /** 2347 * If non-zero, this service is not currently running, but scheduled to 2348 * restart at the given time. 2349 */ 2350 public long restarting; 2351 2352 /** 2353 * Bit for {@link #flags}: set if this service has been 2354 * explicitly started. 2355 */ 2356 public static final int FLAG_STARTED = 1<<0; 2357 2358 /** 2359 * Bit for {@link #flags}: set if the service has asked to 2360 * run as a foreground process. 2361 */ 2362 public static final int FLAG_FOREGROUND = 1<<1; 2363 2364 /** 2365 * Bit for {@link #flags}: set if the service is running in a 2366 * core system process. 2367 */ 2368 public static final int FLAG_SYSTEM_PROCESS = 1<<2; 2369 2370 /** 2371 * Bit for {@link #flags}: set if the service is running in a 2372 * persistent process. 2373 */ 2374 public static final int FLAG_PERSISTENT_PROCESS = 1<<3; 2375 2376 /** 2377 * Running flags. 2378 */ 2379 public int flags; 2380 2381 /** 2382 * For special services that are bound to by system code, this is 2383 * the package that holds the binding. 2384 */ 2385 public String clientPackage; 2386 2387 /** 2388 * For special services that are bound to by system code, this is 2389 * a string resource providing a user-visible label for who the 2390 * client is. 2391 */ 2392 public int clientLabel; 2393 2394 public RunningServiceInfo() { 2395 } 2396 2397 public int describeContents() { 2398 return 0; 2399 } 2400 2401 public void writeToParcel(Parcel dest, int flags) { 2402 ComponentName.writeToParcel(service, dest); 2403 dest.writeInt(pid); 2404 dest.writeInt(uid); 2405 dest.writeString(process); 2406 dest.writeInt(foreground ? 1 : 0); 2407 dest.writeLong(activeSince); 2408 dest.writeInt(started ? 1 : 0); 2409 dest.writeInt(clientCount); 2410 dest.writeInt(crashCount); 2411 dest.writeLong(lastActivityTime); 2412 dest.writeLong(restarting); 2413 dest.writeInt(this.flags); 2414 dest.writeString(clientPackage); 2415 dest.writeInt(clientLabel); 2416 } 2417 2418 public void readFromParcel(Parcel source) { 2419 service = ComponentName.readFromParcel(source); 2420 pid = source.readInt(); 2421 uid = source.readInt(); 2422 process = source.readString(); 2423 foreground = source.readInt() != 0; 2424 activeSince = source.readLong(); 2425 started = source.readInt() != 0; 2426 clientCount = source.readInt(); 2427 crashCount = source.readInt(); 2428 lastActivityTime = source.readLong(); 2429 restarting = source.readLong(); 2430 flags = source.readInt(); 2431 clientPackage = source.readString(); 2432 clientLabel = source.readInt(); 2433 } 2434 2435 public static final Creator<RunningServiceInfo> CREATOR = new Creator<RunningServiceInfo>() { 2436 public RunningServiceInfo createFromParcel(Parcel source) { 2437 return new RunningServiceInfo(source); 2438 } 2439 public RunningServiceInfo[] newArray(int size) { 2440 return new RunningServiceInfo[size]; 2441 } 2442 }; 2443 2444 private RunningServiceInfo(Parcel source) { 2445 readFromParcel(source); 2446 } 2447 } 2448 2449 /** 2450 * Return a list of the services that are currently running. 2451 * 2452 * <p><b>Note: this method is only intended for debugging or implementing 2453 * service management type user interfaces.</b></p> 2454 * 2455 * @deprecated As of {@link android.os.Build.VERSION_CODES#O}, this method 2456 * is no longer available to third party applications. For backwards compatibility, 2457 * it will still return the caller's own services. 2458 * 2459 * @param maxNum The maximum number of entries to return in the list. The 2460 * actual number returned may be smaller, depending on how many services 2461 * are running. 2462 * 2463 * @return Returns a list of RunningServiceInfo records describing each of 2464 * the running tasks. 2465 */ 2466 @Deprecated 2467 public List<RunningServiceInfo> getRunningServices(int maxNum) 2468 throws SecurityException { 2469 try { 2470 return getService() 2471 .getServices(maxNum, 0); 2472 } catch (RemoteException e) { 2473 throw e.rethrowFromSystemServer(); 2474 } 2475 } 2476 2477 /** 2478 * Returns a PendingIntent you can start to show a control panel for the 2479 * given running service. If the service does not have a control panel, 2480 * null is returned. 2481 */ 2482 public PendingIntent getRunningServiceControlPanel(ComponentName service) 2483 throws SecurityException { 2484 try { 2485 return getService() 2486 .getRunningServiceControlPanel(service); 2487 } catch (RemoteException e) { 2488 throw e.rethrowFromSystemServer(); 2489 } 2490 } 2491 2492 /** 2493 * Information you can retrieve about the available memory through 2494 * {@link ActivityManager#getMemoryInfo}. 2495 */ 2496 public static class MemoryInfo implements Parcelable { 2497 /** 2498 * The available memory on the system. This number should not 2499 * be considered absolute: due to the nature of the kernel, a significant 2500 * portion of this memory is actually in use and needed for the overall 2501 * system to run well. 2502 */ 2503 public long availMem; 2504 2505 /** 2506 * The total memory accessible by the kernel. This is basically the 2507 * RAM size of the device, not including below-kernel fixed allocations 2508 * like DMA buffers, RAM for the baseband CPU, etc. 2509 */ 2510 public long totalMem; 2511 2512 /** 2513 * The threshold of {@link #availMem} at which we consider memory to be 2514 * low and start killing background services and other non-extraneous 2515 * processes. 2516 */ 2517 public long threshold; 2518 2519 /** 2520 * Set to true if the system considers itself to currently be in a low 2521 * memory situation. 2522 */ 2523 public boolean lowMemory; 2524 2525 /** @hide */ 2526 public long hiddenAppThreshold; 2527 /** @hide */ 2528 public long secondaryServerThreshold; 2529 /** @hide */ 2530 public long visibleAppThreshold; 2531 /** @hide */ 2532 public long foregroundAppThreshold; 2533 2534 public MemoryInfo() { 2535 } 2536 2537 public int describeContents() { 2538 return 0; 2539 } 2540 2541 public void writeToParcel(Parcel dest, int flags) { 2542 dest.writeLong(availMem); 2543 dest.writeLong(totalMem); 2544 dest.writeLong(threshold); 2545 dest.writeInt(lowMemory ? 1 : 0); 2546 dest.writeLong(hiddenAppThreshold); 2547 dest.writeLong(secondaryServerThreshold); 2548 dest.writeLong(visibleAppThreshold); 2549 dest.writeLong(foregroundAppThreshold); 2550 } 2551 2552 public void readFromParcel(Parcel source) { 2553 availMem = source.readLong(); 2554 totalMem = source.readLong(); 2555 threshold = source.readLong(); 2556 lowMemory = source.readInt() != 0; 2557 hiddenAppThreshold = source.readLong(); 2558 secondaryServerThreshold = source.readLong(); 2559 visibleAppThreshold = source.readLong(); 2560 foregroundAppThreshold = source.readLong(); 2561 } 2562 2563 public static final Creator<MemoryInfo> CREATOR 2564 = new Creator<MemoryInfo>() { 2565 public MemoryInfo createFromParcel(Parcel source) { 2566 return new MemoryInfo(source); 2567 } 2568 public MemoryInfo[] newArray(int size) { 2569 return new MemoryInfo[size]; 2570 } 2571 }; 2572 2573 private MemoryInfo(Parcel source) { 2574 readFromParcel(source); 2575 } 2576 } 2577 2578 /** 2579 * Return general information about the memory state of the system. This 2580 * can be used to help decide how to manage your own memory, though note 2581 * that polling is not recommended and 2582 * {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2583 * ComponentCallbacks2.onTrimMemory(int)} is the preferred way to do this. 2584 * Also see {@link #getMyMemoryState} for how to retrieve the current trim 2585 * level of your process as needed, which gives a better hint for how to 2586 * manage its memory. 2587 */ 2588 public void getMemoryInfo(MemoryInfo outInfo) { 2589 try { 2590 getService().getMemoryInfo(outInfo); 2591 } catch (RemoteException e) { 2592 throw e.rethrowFromSystemServer(); 2593 } 2594 } 2595 2596 /** 2597 * Information you can retrieve about an ActivityStack in the system. 2598 * @hide 2599 */ 2600 public static class StackInfo implements Parcelable { 2601 public int stackId; 2602 public Rect bounds = new Rect(); 2603 public int[] taskIds; 2604 public String[] taskNames; 2605 public Rect[] taskBounds; 2606 public int[] taskUserIds; 2607 public ComponentName topActivity; 2608 public int displayId; 2609 public int userId; 2610 public boolean visible; 2611 // Index of the stack in the display's stack list, can be used for comparison of stack order 2612 public int position; 2613 2614 @Override 2615 public int describeContents() { 2616 return 0; 2617 } 2618 2619 @Override 2620 public void writeToParcel(Parcel dest, int flags) { 2621 dest.writeInt(stackId); 2622 dest.writeInt(bounds.left); 2623 dest.writeInt(bounds.top); 2624 dest.writeInt(bounds.right); 2625 dest.writeInt(bounds.bottom); 2626 dest.writeIntArray(taskIds); 2627 dest.writeStringArray(taskNames); 2628 final int boundsCount = taskBounds == null ? 0 : taskBounds.length; 2629 dest.writeInt(boundsCount); 2630 for (int i = 0; i < boundsCount; i++) { 2631 dest.writeInt(taskBounds[i].left); 2632 dest.writeInt(taskBounds[i].top); 2633 dest.writeInt(taskBounds[i].right); 2634 dest.writeInt(taskBounds[i].bottom); 2635 } 2636 dest.writeIntArray(taskUserIds); 2637 dest.writeInt(displayId); 2638 dest.writeInt(userId); 2639 dest.writeInt(visible ? 1 : 0); 2640 dest.writeInt(position); 2641 if (topActivity != null) { 2642 dest.writeInt(1); 2643 topActivity.writeToParcel(dest, 0); 2644 } else { 2645 dest.writeInt(0); 2646 } 2647 } 2648 2649 public void readFromParcel(Parcel source) { 2650 stackId = source.readInt(); 2651 bounds = new Rect( 2652 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2653 taskIds = source.createIntArray(); 2654 taskNames = source.createStringArray(); 2655 final int boundsCount = source.readInt(); 2656 if (boundsCount > 0) { 2657 taskBounds = new Rect[boundsCount]; 2658 for (int i = 0; i < boundsCount; i++) { 2659 taskBounds[i] = new Rect(); 2660 taskBounds[i].set( 2661 source.readInt(), source.readInt(), source.readInt(), source.readInt()); 2662 } 2663 } else { 2664 taskBounds = null; 2665 } 2666 taskUserIds = source.createIntArray(); 2667 displayId = source.readInt(); 2668 userId = source.readInt(); 2669 visible = source.readInt() > 0; 2670 position = source.readInt(); 2671 if (source.readInt() > 0) { 2672 topActivity = ComponentName.readFromParcel(source); 2673 } 2674 } 2675 2676 public static final Creator<StackInfo> CREATOR = new Creator<StackInfo>() { 2677 @Override 2678 public StackInfo createFromParcel(Parcel source) { 2679 return new StackInfo(source); 2680 } 2681 @Override 2682 public StackInfo[] newArray(int size) { 2683 return new StackInfo[size]; 2684 } 2685 }; 2686 2687 public StackInfo() { 2688 } 2689 2690 private StackInfo(Parcel source) { 2691 readFromParcel(source); 2692 } 2693 2694 public String toString(String prefix) { 2695 StringBuilder sb = new StringBuilder(256); 2696 sb.append(prefix); sb.append("Stack id="); sb.append(stackId); 2697 sb.append(" bounds="); sb.append(bounds.toShortString()); 2698 sb.append(" displayId="); sb.append(displayId); 2699 sb.append(" userId="); sb.append(userId); 2700 sb.append("\n"); 2701 prefix = prefix + " "; 2702 for (int i = 0; i < taskIds.length; ++i) { 2703 sb.append(prefix); sb.append("taskId="); sb.append(taskIds[i]); 2704 sb.append(": "); sb.append(taskNames[i]); 2705 if (taskBounds != null) { 2706 sb.append(" bounds="); sb.append(taskBounds[i].toShortString()); 2707 } 2708 sb.append(" userId=").append(taskUserIds[i]); 2709 sb.append(" visible=").append(visible); 2710 if (topActivity != null) { 2711 sb.append(" topActivity=").append(topActivity); 2712 } 2713 sb.append("\n"); 2714 } 2715 return sb.toString(); 2716 } 2717 2718 @Override 2719 public String toString() { 2720 return toString(""); 2721 } 2722 } 2723 2724 /** 2725 * @hide 2726 */ 2727 @RequiresPermission(anyOf={Manifest.permission.CLEAR_APP_USER_DATA, 2728 Manifest.permission.ACCESS_INSTANT_APPS}) 2729 public boolean clearApplicationUserData(String packageName, IPackageDataObserver observer) { 2730 try { 2731 return getService().clearApplicationUserData(packageName, 2732 observer, UserHandle.myUserId()); 2733 } catch (RemoteException e) { 2734 throw e.rethrowFromSystemServer(); 2735 } 2736 } 2737 2738 /** 2739 * Permits an application to erase its own data from disk. This is equivalent to 2740 * the user choosing to clear the app's data from within the device settings UI. It 2741 * erases all dynamic data associated with the app -- its private data and data in its 2742 * private area on external storage -- but does not remove the installed application 2743 * itself, nor any OBB files. It also revokes all runtime permissions that the app has acquired, 2744 * clears all notifications and removes all Uri grants related to this application. 2745 * 2746 * @return {@code true} if the application successfully requested that the application's 2747 * data be erased; {@code false} otherwise. 2748 */ 2749 public boolean clearApplicationUserData() { 2750 return clearApplicationUserData(mContext.getPackageName(), null); 2751 } 2752 2753 2754 /** 2755 * Permits an application to get the persistent URI permissions granted to another. 2756 * 2757 * <p>Typically called by Settings. 2758 * 2759 * @param packageName application to look for the granted permissions 2760 * @return list of granted URI permissions 2761 * 2762 * @hide 2763 */ 2764 public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) { 2765 try { 2766 return getService().getGrantedUriPermissions(packageName, 2767 UserHandle.myUserId()); 2768 } catch (RemoteException e) { 2769 throw e.rethrowFromSystemServer(); 2770 } 2771 } 2772 2773 /** 2774 * Permits an application to clear the persistent URI permissions granted to another. 2775 * 2776 * <p>Typically called by Settings. 2777 * 2778 * @param packageName application to clear its granted permissions 2779 * 2780 * @hide 2781 */ 2782 public void clearGrantedUriPermissions(String packageName) { 2783 try { 2784 getService().clearGrantedUriPermissions(packageName, 2785 UserHandle.myUserId()); 2786 } catch (RemoteException e) { 2787 throw e.rethrowFromSystemServer(); 2788 } 2789 } 2790 2791 /** 2792 * Information you can retrieve about any processes that are in an error condition. 2793 */ 2794 public static class ProcessErrorStateInfo implements Parcelable { 2795 /** 2796 * Condition codes 2797 */ 2798 public static final int NO_ERROR = 0; 2799 public static final int CRASHED = 1; 2800 public static final int NOT_RESPONDING = 2; 2801 2802 /** 2803 * The condition that the process is in. 2804 */ 2805 public int condition; 2806 2807 /** 2808 * The process name in which the crash or error occurred. 2809 */ 2810 public String processName; 2811 2812 /** 2813 * The pid of this process; 0 if none 2814 */ 2815 public int pid; 2816 2817 /** 2818 * The kernel user-ID that has been assigned to this process; 2819 * currently this is not a unique ID (multiple applications can have 2820 * the same uid). 2821 */ 2822 public int uid; 2823 2824 /** 2825 * The activity name associated with the error, if known. May be null. 2826 */ 2827 public String tag; 2828 2829 /** 2830 * A short message describing the error condition. 2831 */ 2832 public String shortMsg; 2833 2834 /** 2835 * A long message describing the error condition. 2836 */ 2837 public String longMsg; 2838 2839 /** 2840 * The stack trace where the error originated. May be null. 2841 */ 2842 public String stackTrace; 2843 2844 /** 2845 * to be deprecated: This value will always be null. 2846 */ 2847 public byte[] crashData = null; 2848 2849 public ProcessErrorStateInfo() { 2850 } 2851 2852 @Override 2853 public int describeContents() { 2854 return 0; 2855 } 2856 2857 @Override 2858 public void writeToParcel(Parcel dest, int flags) { 2859 dest.writeInt(condition); 2860 dest.writeString(processName); 2861 dest.writeInt(pid); 2862 dest.writeInt(uid); 2863 dest.writeString(tag); 2864 dest.writeString(shortMsg); 2865 dest.writeString(longMsg); 2866 dest.writeString(stackTrace); 2867 } 2868 2869 public void readFromParcel(Parcel source) { 2870 condition = source.readInt(); 2871 processName = source.readString(); 2872 pid = source.readInt(); 2873 uid = source.readInt(); 2874 tag = source.readString(); 2875 shortMsg = source.readString(); 2876 longMsg = source.readString(); 2877 stackTrace = source.readString(); 2878 } 2879 2880 public static final Creator<ProcessErrorStateInfo> CREATOR = 2881 new Creator<ProcessErrorStateInfo>() { 2882 public ProcessErrorStateInfo createFromParcel(Parcel source) { 2883 return new ProcessErrorStateInfo(source); 2884 } 2885 public ProcessErrorStateInfo[] newArray(int size) { 2886 return new ProcessErrorStateInfo[size]; 2887 } 2888 }; 2889 2890 private ProcessErrorStateInfo(Parcel source) { 2891 readFromParcel(source); 2892 } 2893 } 2894 2895 /** 2896 * Returns a list of any processes that are currently in an error condition. The result 2897 * will be null if all processes are running properly at this time. 2898 * 2899 * @return Returns a list of ProcessErrorStateInfo records, or null if there are no 2900 * current error conditions (it will not return an empty list). This list ordering is not 2901 * specified. 2902 */ 2903 public List<ProcessErrorStateInfo> getProcessesInErrorState() { 2904 try { 2905 return getService().getProcessesInErrorState(); 2906 } catch (RemoteException e) { 2907 throw e.rethrowFromSystemServer(); 2908 } 2909 } 2910 2911 /** 2912 * Information you can retrieve about a running process. 2913 */ 2914 public static class RunningAppProcessInfo implements Parcelable { 2915 /** 2916 * The name of the process that this object is associated with 2917 */ 2918 public String processName; 2919 2920 /** 2921 * The pid of this process; 0 if none 2922 */ 2923 public int pid; 2924 2925 /** 2926 * The user id of this process. 2927 */ 2928 public int uid; 2929 2930 /** 2931 * All packages that have been loaded into the process. 2932 */ 2933 public String pkgList[]; 2934 2935 /** 2936 * Constant for {@link #flags}: this is an app that is unable to 2937 * correctly save its state when going to the background, 2938 * so it can not be killed while in the background. 2939 * @hide 2940 */ 2941 public static final int FLAG_CANT_SAVE_STATE = 1<<0; 2942 2943 /** 2944 * Constant for {@link #flags}: this process is associated with a 2945 * persistent system app. 2946 * @hide 2947 */ 2948 public static final int FLAG_PERSISTENT = 1<<1; 2949 2950 /** 2951 * Constant for {@link #flags}: this process is associated with a 2952 * persistent system app. 2953 * @hide 2954 */ 2955 public static final int FLAG_HAS_ACTIVITIES = 1<<2; 2956 2957 /** 2958 * Flags of information. May be any of 2959 * {@link #FLAG_CANT_SAVE_STATE}. 2960 * @hide 2961 */ 2962 public int flags; 2963 2964 /** 2965 * Last memory trim level reported to the process: corresponds to 2966 * the values supplied to {@link android.content.ComponentCallbacks2#onTrimMemory(int) 2967 * ComponentCallbacks2.onTrimMemory(int)}. 2968 */ 2969 public int lastTrimLevel; 2970 2971 /** @hide */ 2972 @IntDef(prefix = { "IMPORTANCE_" }, value = { 2973 IMPORTANCE_FOREGROUND, 2974 IMPORTANCE_FOREGROUND_SERVICE, 2975 IMPORTANCE_TOP_SLEEPING, 2976 IMPORTANCE_VISIBLE, 2977 IMPORTANCE_PERCEPTIBLE, 2978 IMPORTANCE_CANT_SAVE_STATE, 2979 IMPORTANCE_SERVICE, 2980 IMPORTANCE_CACHED, 2981 IMPORTANCE_GONE, 2982 }) 2983 @Retention(RetentionPolicy.SOURCE) 2984 public @interface Importance {} 2985 2986 /** 2987 * Constant for {@link #importance}: This process is running the 2988 * foreground UI; that is, it is the thing currently at the top of the screen 2989 * that the user is interacting with. 2990 */ 2991 public static final int IMPORTANCE_FOREGROUND = 100; 2992 2993 /** 2994 * Constant for {@link #importance}: This process is running a foreground 2995 * service, for example to perform music playback even while the user is 2996 * not immediately in the app. This generally indicates that the process 2997 * is doing something the user actively cares about. 2998 */ 2999 public static final int IMPORTANCE_FOREGROUND_SERVICE = 125; 3000 3001 /** 3002 * Constant for {@link #importance}: This process is running the foreground 3003 * UI, but the device is asleep so it is not visible to the user. This means 3004 * the user is not really aware of the process, because they can not see or 3005 * interact with it, but it is quite important because it what they expect to 3006 * return to once unlocking the device. 3007 */ 3008 public static final int IMPORTANCE_TOP_SLEEPING = 150; 3009 3010 /** 3011 * Constant for {@link #importance}: This process is running something 3012 * that is actively visible to the user, though not in the immediate 3013 * foreground. This may be running a window that is behind the current 3014 * foreground (so paused and with its state saved, not interacting with 3015 * the user, but visible to them to some degree); it may also be running 3016 * other services under the system's control that it inconsiders important. 3017 */ 3018 public static final int IMPORTANCE_VISIBLE = 200; 3019 3020 /** 3021 * Constant for {@link #importance}: {@link #IMPORTANCE_PERCEPTIBLE} had this wrong value 3022 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3023 * the value of {@link #IMPORTANCE_PERCEPTIBLE} has been fixed. 3024 * 3025 * <p>The system will return this value instead of {@link #IMPORTANCE_PERCEPTIBLE} 3026 * on Android versions below {@link Build.VERSION_CODES#O}. 3027 * 3028 * <p>On Android version {@link Build.VERSION_CODES#O} and later, this value will still be 3029 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3030 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3031 * the correct value {@link #IMPORTANCE_PERCEPTIBLE} will be returned. 3032 */ 3033 public static final int IMPORTANCE_PERCEPTIBLE_PRE_26 = 130; 3034 3035 /** 3036 * Constant for {@link #importance}: This process is not something the user 3037 * is directly aware of, but is otherwise perceptible to them to some degree. 3038 */ 3039 public static final int IMPORTANCE_PERCEPTIBLE = 230; 3040 3041 /** 3042 * Constant for {@link #importance}: {@link #IMPORTANCE_CANT_SAVE_STATE} had 3043 * this wrong value 3044 * before {@link Build.VERSION_CODES#O}. Since the {@link Build.VERSION_CODES#O} SDK, 3045 * the value of {@link #IMPORTANCE_CANT_SAVE_STATE} has been fixed. 3046 * 3047 * <p>The system will return this value instead of {@link #IMPORTANCE_CANT_SAVE_STATE} 3048 * on Android versions below {@link Build.VERSION_CODES#O}. 3049 * 3050 * <p>On Android version {@link Build.VERSION_CODES#O} after, this value will still be 3051 * returned for apps with the target API level below {@link Build.VERSION_CODES#O}. 3052 * For apps targeting version {@link Build.VERSION_CODES#O} and later, 3053 * the correct value {@link #IMPORTANCE_CANT_SAVE_STATE} will be returned. 3054 * 3055 * @hide 3056 */ 3057 public static final int IMPORTANCE_CANT_SAVE_STATE_PRE_26 = 170; 3058 3059 /** 3060 * Constant for {@link #importance}: This process is running an 3061 * application that can not save its state, and thus can't be killed 3062 * while in the background. 3063 * @hide 3064 */ 3065 public static final int IMPORTANCE_CANT_SAVE_STATE= 270; 3066 3067 /** 3068 * Constant for {@link #importance}: This process is contains services 3069 * that should remain running. These are background services apps have 3070 * started, not something the user is aware of, so they may be killed by 3071 * the system relatively freely (though it is generally desired that they 3072 * stay running as long as they want to). 3073 */ 3074 public static final int IMPORTANCE_SERVICE = 300; 3075 3076 /** 3077 * Constant for {@link #importance}: This process process contains 3078 * cached code that is expendable, not actively running any app components 3079 * we care about. 3080 */ 3081 public static final int IMPORTANCE_CACHED = 400; 3082 3083 /** 3084 * @deprecated Renamed to {@link #IMPORTANCE_CACHED}. 3085 */ 3086 public static final int IMPORTANCE_BACKGROUND = IMPORTANCE_CACHED; 3087 3088 /** 3089 * Constant for {@link #importance}: This process is empty of any 3090 * actively running code. 3091 * @deprecated This value is no longer reported, use {@link #IMPORTANCE_CACHED} instead. 3092 */ 3093 @Deprecated 3094 public static final int IMPORTANCE_EMPTY = 500; 3095 3096 /** 3097 * Constant for {@link #importance}: This process does not exist. 3098 */ 3099 public static final int IMPORTANCE_GONE = 1000; 3100 3101 /** 3102 * Convert a proc state to the correspondent IMPORTANCE_* constant. If the return value 3103 * will be passed to a client, use {@link #procStateToImportanceForClient}. 3104 * @hide 3105 */ 3106 public static @Importance int procStateToImportance(int procState) { 3107 if (procState == PROCESS_STATE_NONEXISTENT) { 3108 return IMPORTANCE_GONE; 3109 } else if (procState >= PROCESS_STATE_HOME) { 3110 return IMPORTANCE_CACHED; 3111 } else if (procState >= PROCESS_STATE_SERVICE) { 3112 return IMPORTANCE_SERVICE; 3113 } else if (procState > PROCESS_STATE_HEAVY_WEIGHT) { 3114 return IMPORTANCE_CANT_SAVE_STATE; 3115 } else if (procState >= PROCESS_STATE_TRANSIENT_BACKGROUND) { 3116 return IMPORTANCE_PERCEPTIBLE; 3117 } else if (procState >= PROCESS_STATE_IMPORTANT_FOREGROUND) { 3118 return IMPORTANCE_VISIBLE; 3119 } else if (procState >= PROCESS_STATE_TOP_SLEEPING) { 3120 return IMPORTANCE_TOP_SLEEPING; 3121 } else if (procState >= PROCESS_STATE_FOREGROUND_SERVICE) { 3122 return IMPORTANCE_FOREGROUND_SERVICE; 3123 } else { 3124 return IMPORTANCE_FOREGROUND; 3125 } 3126 } 3127 3128 /** 3129 * Convert a proc state to the correspondent IMPORTANCE_* constant for a client represented 3130 * by a given {@link Context}, with converting {@link #IMPORTANCE_PERCEPTIBLE} 3131 * and {@link #IMPORTANCE_CANT_SAVE_STATE} to the corresponding "wrong" value if the 3132 * client's target SDK < {@link VERSION_CODES#O}. 3133 * @hide 3134 */ 3135 public static @Importance int procStateToImportanceForClient(int procState, 3136 Context clientContext) { 3137 return procStateToImportanceForTargetSdk(procState, 3138 clientContext.getApplicationInfo().targetSdkVersion); 3139 } 3140 3141 /** 3142 * See {@link #procStateToImportanceForClient}. 3143 * @hide 3144 */ 3145 public static @Importance int procStateToImportanceForTargetSdk(int procState, 3146 int targetSdkVersion) { 3147 final int importance = procStateToImportance(procState); 3148 3149 // For pre O apps, convert to the old, wrong values. 3150 if (targetSdkVersion < VERSION_CODES.O) { 3151 switch (importance) { 3152 case IMPORTANCE_PERCEPTIBLE: 3153 return IMPORTANCE_PERCEPTIBLE_PRE_26; 3154 case IMPORTANCE_CANT_SAVE_STATE: 3155 return IMPORTANCE_CANT_SAVE_STATE_PRE_26; 3156 } 3157 } 3158 return importance; 3159 } 3160 3161 /** @hide */ 3162 public static int importanceToProcState(@Importance int importance) { 3163 if (importance == IMPORTANCE_GONE) { 3164 return PROCESS_STATE_NONEXISTENT; 3165 } else if (importance >= IMPORTANCE_CACHED) { 3166 return PROCESS_STATE_HOME; 3167 } else if (importance >= IMPORTANCE_SERVICE) { 3168 return PROCESS_STATE_SERVICE; 3169 } else if (importance > IMPORTANCE_CANT_SAVE_STATE) { 3170 return PROCESS_STATE_HEAVY_WEIGHT; 3171 } else if (importance >= IMPORTANCE_PERCEPTIBLE) { 3172 return PROCESS_STATE_TRANSIENT_BACKGROUND; 3173 } else if (importance >= IMPORTANCE_VISIBLE) { 3174 return PROCESS_STATE_IMPORTANT_FOREGROUND; 3175 } else if (importance >= IMPORTANCE_TOP_SLEEPING) { 3176 return PROCESS_STATE_TOP_SLEEPING; 3177 } else if (importance >= IMPORTANCE_FOREGROUND_SERVICE) { 3178 return PROCESS_STATE_FOREGROUND_SERVICE; 3179 } else { 3180 return PROCESS_STATE_BOUND_FOREGROUND_SERVICE; 3181 } 3182 } 3183 3184 /** 3185 * The relative importance level that the system places on this process. 3186 * These constants are numbered so that "more important" values are 3187 * always smaller than "less important" values. 3188 */ 3189 public @Importance int importance; 3190 3191 /** 3192 * An additional ordering within a particular {@link #importance} 3193 * category, providing finer-grained information about the relative 3194 * utility of processes within a category. This number means nothing 3195 * except that a smaller values are more recently used (and thus 3196 * more important). Currently an LRU value is only maintained for 3197 * the {@link #IMPORTANCE_CACHED} category, though others may 3198 * be maintained in the future. 3199 */ 3200 public int lru; 3201 3202 /** 3203 * Constant for {@link #importanceReasonCode}: nothing special has 3204 * been specified for the reason for this level. 3205 */ 3206 public static final int REASON_UNKNOWN = 0; 3207 3208 /** 3209 * Constant for {@link #importanceReasonCode}: one of the application's 3210 * content providers is being used by another process. The pid of 3211 * the client process is in {@link #importanceReasonPid} and the 3212 * target provider in this process is in 3213 * {@link #importanceReasonComponent}. 3214 */ 3215 public static final int REASON_PROVIDER_IN_USE = 1; 3216 3217 /** 3218 * Constant for {@link #importanceReasonCode}: one of the application's 3219 * content providers is being used by another process. The pid of 3220 * the client process is in {@link #importanceReasonPid} and the 3221 * target provider in this process is in 3222 * {@link #importanceReasonComponent}. 3223 */ 3224 public static final int REASON_SERVICE_IN_USE = 2; 3225 3226 /** 3227 * The reason for {@link #importance}, if any. 3228 */ 3229 public int importanceReasonCode; 3230 3231 /** 3232 * For the specified values of {@link #importanceReasonCode}, this 3233 * is the process ID of the other process that is a client of this 3234 * process. This will be 0 if no other process is using this one. 3235 */ 3236 public int importanceReasonPid; 3237 3238 /** 3239 * For the specified values of {@link #importanceReasonCode}, this 3240 * is the name of the component that is being used in this process. 3241 */ 3242 public ComponentName importanceReasonComponent; 3243 3244 /** 3245 * When {@link #importanceReasonPid} is non-0, this is the importance 3246 * of the other pid. @hide 3247 */ 3248 public int importanceReasonImportance; 3249 3250 /** 3251 * Current process state, as per PROCESS_STATE_* constants. 3252 * @hide 3253 */ 3254 public int processState; 3255 3256 public RunningAppProcessInfo() { 3257 importance = IMPORTANCE_FOREGROUND; 3258 importanceReasonCode = REASON_UNKNOWN; 3259 processState = PROCESS_STATE_IMPORTANT_FOREGROUND; 3260 } 3261 3262 public RunningAppProcessInfo(String pProcessName, int pPid, String pArr[]) { 3263 processName = pProcessName; 3264 pid = pPid; 3265 pkgList = pArr; 3266 } 3267 3268 public int describeContents() { 3269 return 0; 3270 } 3271 3272 public void writeToParcel(Parcel dest, int flags) { 3273 dest.writeString(processName); 3274 dest.writeInt(pid); 3275 dest.writeInt(uid); 3276 dest.writeStringArray(pkgList); 3277 dest.writeInt(this.flags); 3278 dest.writeInt(lastTrimLevel); 3279 dest.writeInt(importance); 3280 dest.writeInt(lru); 3281 dest.writeInt(importanceReasonCode); 3282 dest.writeInt(importanceReasonPid); 3283 ComponentName.writeToParcel(importanceReasonComponent, dest); 3284 dest.writeInt(importanceReasonImportance); 3285 dest.writeInt(processState); 3286 } 3287 3288 public void readFromParcel(Parcel source) { 3289 processName = source.readString(); 3290 pid = source.readInt(); 3291 uid = source.readInt(); 3292 pkgList = source.readStringArray(); 3293 flags = source.readInt(); 3294 lastTrimLevel = source.readInt(); 3295 importance = source.readInt(); 3296 lru = source.readInt(); 3297 importanceReasonCode = source.readInt(); 3298 importanceReasonPid = source.readInt(); 3299 importanceReasonComponent = ComponentName.readFromParcel(source); 3300 importanceReasonImportance = source.readInt(); 3301 processState = source.readInt(); 3302 } 3303 3304 public static final Creator<RunningAppProcessInfo> CREATOR = 3305 new Creator<RunningAppProcessInfo>() { 3306 public RunningAppProcessInfo createFromParcel(Parcel source) { 3307 return new RunningAppProcessInfo(source); 3308 } 3309 public RunningAppProcessInfo[] newArray(int size) { 3310 return new RunningAppProcessInfo[size]; 3311 } 3312 }; 3313 3314 private RunningAppProcessInfo(Parcel source) { 3315 readFromParcel(source); 3316 } 3317 } 3318 3319 /** 3320 * Returns a list of application processes installed on external media 3321 * that are running on the device. 3322 * 3323 * <p><b>Note: this method is only intended for debugging or building 3324 * a user-facing process management UI.</b></p> 3325 * 3326 * @return Returns a list of ApplicationInfo records, or null if none 3327 * This list ordering is not specified. 3328 * @hide 3329 */ 3330 public List<ApplicationInfo> getRunningExternalApplications() { 3331 try { 3332 return getService().getRunningExternalApplications(); 3333 } catch (RemoteException e) { 3334 throw e.rethrowFromSystemServer(); 3335 } 3336 } 3337 3338 /** 3339 * Sets the memory trim mode for a process and schedules a memory trim operation. 3340 * 3341 * <p><b>Note: this method is only intended for testing framework.</b></p> 3342 * 3343 * @return Returns true if successful. 3344 * @hide 3345 */ 3346 public boolean setProcessMemoryTrimLevel(String process, int userId, int level) { 3347 try { 3348 return getService().setProcessMemoryTrimLevel(process, userId, 3349 level); 3350 } catch (RemoteException e) { 3351 throw e.rethrowFromSystemServer(); 3352 } 3353 } 3354 3355 /** 3356 * Returns a list of application processes that are running on the device. 3357 * 3358 * <p><b>Note: this method is only intended for debugging or building 3359 * a user-facing process management UI.</b></p> 3360 * 3361 * @return Returns a list of RunningAppProcessInfo records, or null if there are no 3362 * running processes (it will not return an empty list). This list ordering is not 3363 * specified. 3364 */ 3365 public List<RunningAppProcessInfo> getRunningAppProcesses() { 3366 try { 3367 return getService().getRunningAppProcesses(); 3368 } catch (RemoteException e) { 3369 throw e.rethrowFromSystemServer(); 3370 } 3371 } 3372 3373 /** 3374 * Return the importance of a given package name, based on the processes that are 3375 * currently running. The return value is one of the importance constants defined 3376 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3377 * processes that this package has code running inside of. If there are no processes 3378 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3379 * @hide 3380 */ 3381 @SystemApi @TestApi 3382 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3383 public @RunningAppProcessInfo.Importance int getPackageImportance(String packageName) { 3384 try { 3385 int procState = getService().getPackageProcessState(packageName, 3386 mContext.getOpPackageName()); 3387 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3388 } catch (RemoteException e) { 3389 throw e.rethrowFromSystemServer(); 3390 } 3391 } 3392 3393 /** 3394 * Return the importance of a given uid, based on the processes that are 3395 * currently running. The return value is one of the importance constants defined 3396 * in {@link RunningAppProcessInfo}, giving you the highest importance of all the 3397 * processes that this uid has running. If there are no processes 3398 * running its code, {@link RunningAppProcessInfo#IMPORTANCE_GONE} is returned. 3399 * @hide 3400 */ 3401 @SystemApi @TestApi 3402 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3403 public @RunningAppProcessInfo.Importance int getUidImportance(int uid) { 3404 try { 3405 int procState = getService().getUidProcessState(uid, 3406 mContext.getOpPackageName()); 3407 return RunningAppProcessInfo.procStateToImportanceForClient(procState, mContext); 3408 } catch (RemoteException e) { 3409 throw e.rethrowFromSystemServer(); 3410 } 3411 } 3412 3413 /** 3414 * Callback to get reports about changes to the importance of a uid. Use with 3415 * {@link #addOnUidImportanceListener}. 3416 * @hide 3417 */ 3418 @SystemApi @TestApi 3419 public interface OnUidImportanceListener { 3420 /** 3421 * The importance if a given uid has changed. Will be one of the importance 3422 * values in {@link RunningAppProcessInfo}; 3423 * {@link RunningAppProcessInfo#IMPORTANCE_GONE IMPORTANCE_GONE} will be reported 3424 * when the uid is no longer running at all. This callback will happen on a thread 3425 * from a thread pool, not the main UI thread. 3426 * @param uid The uid whose importance has changed. 3427 * @param importance The new importance value as per {@link RunningAppProcessInfo}. 3428 */ 3429 void onUidImportance(int uid, @RunningAppProcessInfo.Importance int importance); 3430 } 3431 3432 /** 3433 * Start monitoring changes to the imoportance of uids running in the system. 3434 * @param listener The listener callback that will receive change reports. 3435 * @param importanceCutpoint The level of importance in which the caller is interested 3436 * in differences. For example, if {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} 3437 * is used here, you will receive a call each time a uids importance transitions between 3438 * being <= {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE} and 3439 * > {@link RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}. 3440 * 3441 * <p>The caller must hold the {@link android.Manifest.permission#PACKAGE_USAGE_STATS} 3442 * permission to use this feature.</p> 3443 * 3444 * @throws IllegalArgumentException If the listener is already registered. 3445 * @throws SecurityException If the caller does not hold 3446 * {@link android.Manifest.permission#PACKAGE_USAGE_STATS}. 3447 * @hide 3448 */ 3449 @SystemApi @TestApi 3450 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3451 public void addOnUidImportanceListener(OnUidImportanceListener listener, 3452 @RunningAppProcessInfo.Importance int importanceCutpoint) { 3453 synchronized (this) { 3454 if (mImportanceListeners.containsKey(listener)) { 3455 throw new IllegalArgumentException("Listener already registered: " + listener); 3456 } 3457 // TODO: implement the cut point in the system process to avoid IPCs. 3458 UidObserver observer = new UidObserver(listener, mContext); 3459 try { 3460 getService().registerUidObserver(observer, 3461 UID_OBSERVER_PROCSTATE | UID_OBSERVER_GONE, 3462 RunningAppProcessInfo.importanceToProcState(importanceCutpoint), 3463 mContext.getOpPackageName()); 3464 } catch (RemoteException e) { 3465 throw e.rethrowFromSystemServer(); 3466 } 3467 mImportanceListeners.put(listener, observer); 3468 } 3469 } 3470 3471 /** 3472 * Remove an importance listener that was previously registered with 3473 * {@link #addOnUidImportanceListener}. 3474 * 3475 * @throws IllegalArgumentException If the listener is not registered. 3476 * @hide 3477 */ 3478 @SystemApi @TestApi 3479 @RequiresPermission(Manifest.permission.PACKAGE_USAGE_STATS) 3480 public void removeOnUidImportanceListener(OnUidImportanceListener listener) { 3481 synchronized (this) { 3482 UidObserver observer = mImportanceListeners.remove(listener); 3483 if (observer == null) { 3484 throw new IllegalArgumentException("Listener not registered: " + listener); 3485 } 3486 try { 3487 getService().unregisterUidObserver(observer); 3488 } catch (RemoteException e) { 3489 throw e.rethrowFromSystemServer(); 3490 } 3491 } 3492 } 3493 3494 /** 3495 * Return global memory state information for the calling process. This 3496 * does not fill in all fields of the {@link RunningAppProcessInfo}. The 3497 * only fields that will be filled in are 3498 * {@link RunningAppProcessInfo#pid}, 3499 * {@link RunningAppProcessInfo#uid}, 3500 * {@link RunningAppProcessInfo#lastTrimLevel}, 3501 * {@link RunningAppProcessInfo#importance}, 3502 * {@link RunningAppProcessInfo#lru}, and 3503 * {@link RunningAppProcessInfo#importanceReasonCode}. 3504 */ 3505 static public void getMyMemoryState(RunningAppProcessInfo outState) { 3506 try { 3507 getService().getMyMemoryState(outState); 3508 } catch (RemoteException e) { 3509 throw e.rethrowFromSystemServer(); 3510 } 3511 } 3512 3513 /** 3514 * Return information about the memory usage of one or more processes. 3515 * 3516 * <p><b>Note: this method is only intended for debugging or building 3517 * a user-facing process management UI.</b></p> 3518 * 3519 * @param pids The pids of the processes whose memory usage is to be 3520 * retrieved. 3521 * @return Returns an array of memory information, one for each 3522 * requested pid. 3523 */ 3524 public Debug.MemoryInfo[] getProcessMemoryInfo(int[] pids) { 3525 try { 3526 return getService().getProcessMemoryInfo(pids); 3527 } catch (RemoteException e) { 3528 throw e.rethrowFromSystemServer(); 3529 } 3530 } 3531 3532 /** 3533 * @deprecated This is now just a wrapper for 3534 * {@link #killBackgroundProcesses(String)}; the previous behavior here 3535 * is no longer available to applications because it allows them to 3536 * break other applications by removing their alarms, stopping their 3537 * services, etc. 3538 */ 3539 @Deprecated 3540 public void restartPackage(String packageName) { 3541 killBackgroundProcesses(packageName); 3542 } 3543 3544 /** 3545 * Have the system immediately kill all background processes associated 3546 * with the given package. This is the same as the kernel killing those 3547 * processes to reclaim memory; the system will take care of restarting 3548 * these processes in the future as needed. 3549 * 3550 * @param packageName The name of the package whose processes are to 3551 * be killed. 3552 */ 3553 @RequiresPermission(Manifest.permission.KILL_BACKGROUND_PROCESSES) 3554 public void killBackgroundProcesses(String packageName) { 3555 try { 3556 getService().killBackgroundProcesses(packageName, 3557 UserHandle.myUserId()); 3558 } catch (RemoteException e) { 3559 throw e.rethrowFromSystemServer(); 3560 } 3561 } 3562 3563 /** 3564 * Kills the specified UID. 3565 * @param uid The UID to kill. 3566 * @param reason The reason for the kill. 3567 * 3568 * @hide 3569 */ 3570 @SystemApi 3571 @RequiresPermission(Manifest.permission.KILL_UID) 3572 public void killUid(int uid, String reason) { 3573 try { 3574 getService().killUid(UserHandle.getAppId(uid), 3575 UserHandle.getUserId(uid), reason); 3576 } catch (RemoteException e) { 3577 throw e.rethrowFromSystemServer(); 3578 } 3579 } 3580 3581 /** 3582 * Have the system perform a force stop of everything associated with 3583 * the given application package. All processes that share its uid 3584 * will be killed, all services it has running stopped, all activities 3585 * removed, etc. In addition, a {@link Intent#ACTION_PACKAGE_RESTARTED} 3586 * broadcast will be sent, so that any of its registered alarms can 3587 * be stopped, notifications removed, etc. 3588 * 3589 * <p>You must hold the permission 3590 * {@link android.Manifest.permission#FORCE_STOP_PACKAGES} to be able to 3591 * call this method. 3592 * 3593 * @param packageName The name of the package to be stopped. 3594 * @param userId The user for which the running package is to be stopped. 3595 * 3596 * @hide This is not available to third party applications due to 3597 * it allowing them to break other applications by stopping their 3598 * services, removing their alarms, etc. 3599 */ 3600 public void forceStopPackageAsUser(String packageName, int userId) { 3601 try { 3602 getService().forceStopPackage(packageName, userId); 3603 } catch (RemoteException e) { 3604 throw e.rethrowFromSystemServer(); 3605 } 3606 } 3607 3608 /** 3609 * @see #forceStopPackageAsUser(String, int) 3610 * @hide 3611 */ 3612 @SystemApi 3613 @RequiresPermission(Manifest.permission.FORCE_STOP_PACKAGES) 3614 public void forceStopPackage(String packageName) { 3615 forceStopPackageAsUser(packageName, UserHandle.myUserId()); 3616 } 3617 3618 /** 3619 * Get the device configuration attributes. 3620 */ 3621 public ConfigurationInfo getDeviceConfigurationInfo() { 3622 try { 3623 return getService().getDeviceConfigurationInfo(); 3624 } catch (RemoteException e) { 3625 throw e.rethrowFromSystemServer(); 3626 } 3627 } 3628 3629 /** 3630 * Get the preferred density of icons for the launcher. This is used when 3631 * custom drawables are created (e.g., for shortcuts). 3632 * 3633 * @return density in terms of DPI 3634 */ 3635 public int getLauncherLargeIconDensity() { 3636 final Resources res = mContext.getResources(); 3637 final int density = res.getDisplayMetrics().densityDpi; 3638 final int sw = res.getConfiguration().smallestScreenWidthDp; 3639 3640 if (sw < 600) { 3641 // Smaller than approx 7" tablets, use the regular icon size. 3642 return density; 3643 } 3644 3645 switch (density) { 3646 case DisplayMetrics.DENSITY_LOW: 3647 return DisplayMetrics.DENSITY_MEDIUM; 3648 case DisplayMetrics.DENSITY_MEDIUM: 3649 return DisplayMetrics.DENSITY_HIGH; 3650 case DisplayMetrics.DENSITY_TV: 3651 return DisplayMetrics.DENSITY_XHIGH; 3652 case DisplayMetrics.DENSITY_HIGH: 3653 return DisplayMetrics.DENSITY_XHIGH; 3654 case DisplayMetrics.DENSITY_XHIGH: 3655 return DisplayMetrics.DENSITY_XXHIGH; 3656 case DisplayMetrics.DENSITY_XXHIGH: 3657 return DisplayMetrics.DENSITY_XHIGH * 2; 3658 default: 3659 // The density is some abnormal value. Return some other 3660 // abnormal value that is a reasonable scaling of it. 3661 return (int)((density*1.5f)+.5f); 3662 } 3663 } 3664 3665 /** 3666 * Get the preferred launcher icon size. This is used when custom drawables 3667 * are created (e.g., for shortcuts). 3668 * 3669 * @return dimensions of square icons in terms of pixels 3670 */ 3671 public int getLauncherLargeIconSize() { 3672 return getLauncherLargeIconSizeInner(mContext); 3673 } 3674 3675 static int getLauncherLargeIconSizeInner(Context context) { 3676 final Resources res = context.getResources(); 3677 final int size = res.getDimensionPixelSize(android.R.dimen.app_icon_size); 3678 final int sw = res.getConfiguration().smallestScreenWidthDp; 3679 3680 if (sw < 600) { 3681 // Smaller than approx 7" tablets, use the regular icon size. 3682 return size; 3683 } 3684 3685 final int density = res.getDisplayMetrics().densityDpi; 3686 3687 switch (density) { 3688 case DisplayMetrics.DENSITY_LOW: 3689 return (size * DisplayMetrics.DENSITY_MEDIUM) / DisplayMetrics.DENSITY_LOW; 3690 case DisplayMetrics.DENSITY_MEDIUM: 3691 return (size * DisplayMetrics.DENSITY_HIGH) / DisplayMetrics.DENSITY_MEDIUM; 3692 case DisplayMetrics.DENSITY_TV: 3693 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3694 case DisplayMetrics.DENSITY_HIGH: 3695 return (size * DisplayMetrics.DENSITY_XHIGH) / DisplayMetrics.DENSITY_HIGH; 3696 case DisplayMetrics.DENSITY_XHIGH: 3697 return (size * DisplayMetrics.DENSITY_XXHIGH) / DisplayMetrics.DENSITY_XHIGH; 3698 case DisplayMetrics.DENSITY_XXHIGH: 3699 return (size * DisplayMetrics.DENSITY_XHIGH*2) / DisplayMetrics.DENSITY_XXHIGH; 3700 default: 3701 // The density is some abnormal value. Return some other 3702 // abnormal value that is a reasonable scaling of it. 3703 return (int)((size*1.5f) + .5f); 3704 } 3705 } 3706 3707 /** 3708 * Returns "true" if the user interface is currently being messed with 3709 * by a monkey. 3710 */ 3711 public static boolean isUserAMonkey() { 3712 try { 3713 return getService().isUserAMonkey(); 3714 } catch (RemoteException e) { 3715 throw e.rethrowFromSystemServer(); 3716 } 3717 } 3718 3719 /** 3720 * Returns "true" if device is running in a test harness. 3721 */ 3722 public static boolean isRunningInTestHarness() { 3723 return SystemProperties.getBoolean("ro.test_harness", false); 3724 } 3725 3726 /** 3727 * Returns the launch count of each installed package. 3728 * 3729 * @hide 3730 */ 3731 /*public Map<String, Integer> getAllPackageLaunchCounts() { 3732 try { 3733 IUsageStats usageStatsService = IUsageStats.Stub.asInterface( 3734 ServiceManager.getService("usagestats")); 3735 if (usageStatsService == null) { 3736 return new HashMap<String, Integer>(); 3737 } 3738 3739 UsageStats.PackageStats[] allPkgUsageStats = usageStatsService.getAllPkgUsageStats( 3740 ActivityThread.currentPackageName()); 3741 if (allPkgUsageStats == null) { 3742 return new HashMap<String, Integer>(); 3743 } 3744 3745 Map<String, Integer> launchCounts = new HashMap<String, Integer>(); 3746 for (UsageStats.PackageStats pkgUsageStats : allPkgUsageStats) { 3747 launchCounts.put(pkgUsageStats.getPackageName(), pkgUsageStats.getLaunchCount()); 3748 } 3749 3750 return launchCounts; 3751 } catch (RemoteException e) { 3752 Log.w(TAG, "Could not query launch counts", e); 3753 return new HashMap<String, Integer>(); 3754 } 3755 }*/ 3756 3757 /** @hide */ 3758 public static int checkComponentPermission(String permission, int uid, 3759 int owningUid, boolean exported) { 3760 // Root, system server get to do everything. 3761 final int appId = UserHandle.getAppId(uid); 3762 if (appId == Process.ROOT_UID || appId == Process.SYSTEM_UID) { 3763 return PackageManager.PERMISSION_GRANTED; 3764 } 3765 // Isolated processes don't get any permissions. 3766 if (UserHandle.isIsolated(uid)) { 3767 return PackageManager.PERMISSION_DENIED; 3768 } 3769 // If there is a uid that owns whatever is being accessed, it has 3770 // blanket access to it regardless of the permissions it requires. 3771 if (owningUid >= 0 && UserHandle.isSameApp(uid, owningUid)) { 3772 return PackageManager.PERMISSION_GRANTED; 3773 } 3774 // If the target is not exported, then nobody else can get to it. 3775 if (!exported) { 3776 /* 3777 RuntimeException here = new RuntimeException("here"); 3778 here.fillInStackTrace(); 3779 Slog.w(TAG, "Permission denied: checkComponentPermission() owningUid=" + owningUid, 3780 here); 3781 */ 3782 return PackageManager.PERMISSION_DENIED; 3783 } 3784 if (permission == null) { 3785 return PackageManager.PERMISSION_GRANTED; 3786 } 3787 try { 3788 return AppGlobals.getPackageManager() 3789 .checkUidPermission(permission, uid); 3790 } catch (RemoteException e) { 3791 throw e.rethrowFromSystemServer(); 3792 } 3793 } 3794 3795 /** @hide */ 3796 public static int checkUidPermission(String permission, int uid) { 3797 try { 3798 return AppGlobals.getPackageManager() 3799 .checkUidPermission(permission, uid); 3800 } catch (RemoteException e) { 3801 throw e.rethrowFromSystemServer(); 3802 } 3803 } 3804 3805 /** 3806 * @hide 3807 * Helper for dealing with incoming user arguments to system service calls. 3808 * Takes care of checking permissions and converting USER_CURRENT to the 3809 * actual current user. 3810 * 3811 * @param callingPid The pid of the incoming call, as per Binder.getCallingPid(). 3812 * @param callingUid The uid of the incoming call, as per Binder.getCallingUid(). 3813 * @param userId The user id argument supplied by the caller -- this is the user 3814 * they want to run as. 3815 * @param allowAll If true, we will allow USER_ALL. This means you must be prepared 3816 * to get a USER_ALL returned and deal with it correctly. If false, 3817 * an exception will be thrown if USER_ALL is supplied. 3818 * @param requireFull If true, the caller must hold 3819 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL} to be able to run as a 3820 * different user than their current process; otherwise they must hold 3821 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS}. 3822 * @param name Optional textual name of the incoming call; only for generating error messages. 3823 * @param callerPackage Optional package name of caller; only for error messages. 3824 * 3825 * @return Returns the user ID that the call should run as. Will always be a concrete 3826 * user number, unless <var>allowAll</var> is true in which case it could also be 3827 * USER_ALL. 3828 */ 3829 public static int handleIncomingUser(int callingPid, int callingUid, int userId, 3830 boolean allowAll, boolean requireFull, String name, String callerPackage) { 3831 if (UserHandle.getUserId(callingUid) == userId) { 3832 return userId; 3833 } 3834 try { 3835 return getService().handleIncomingUser(callingPid, 3836 callingUid, userId, allowAll, requireFull, name, callerPackage); 3837 } catch (RemoteException e) { 3838 throw e.rethrowFromSystemServer(); 3839 } 3840 } 3841 3842 /** 3843 * Gets the userId of the current foreground user. Requires system permissions. 3844 * @hide 3845 */ 3846 @SystemApi 3847 @RequiresPermission(anyOf = { 3848 "android.permission.INTERACT_ACROSS_USERS", 3849 "android.permission.INTERACT_ACROSS_USERS_FULL" 3850 }) 3851 public static int getCurrentUser() { 3852 UserInfo ui; 3853 try { 3854 ui = getService().getCurrentUser(); 3855 return ui != null ? ui.id : 0; 3856 } catch (RemoteException e) { 3857 throw e.rethrowFromSystemServer(); 3858 } 3859 } 3860 3861 /** 3862 * @param userid the user's id. Zero indicates the default user. 3863 * @hide 3864 */ 3865 public boolean switchUser(int userid) { 3866 try { 3867 return getService().switchUser(userid); 3868 } catch (RemoteException e) { 3869 throw e.rethrowFromSystemServer(); 3870 } 3871 } 3872 3873 /** 3874 * Logs out current current foreground user by switching to the system user and stopping the 3875 * user being switched from. 3876 * @hide 3877 */ 3878 public static void logoutCurrentUser() { 3879 int currentUser = ActivityManager.getCurrentUser(); 3880 if (currentUser != UserHandle.USER_SYSTEM) { 3881 try { 3882 getService().switchUser(UserHandle.USER_SYSTEM); 3883 getService().stopUser(currentUser, /* force= */ false, null); 3884 } catch (RemoteException e) { 3885 e.rethrowFromSystemServer(); 3886 } 3887 } 3888 } 3889 3890 /** {@hide} */ 3891 public static final int FLAG_OR_STOPPED = 1 << 0; 3892 /** {@hide} */ 3893 public static final int FLAG_AND_LOCKED = 1 << 1; 3894 /** {@hide} */ 3895 public static final int FLAG_AND_UNLOCKED = 1 << 2; 3896 /** {@hide} */ 3897 public static final int FLAG_AND_UNLOCKING_OR_UNLOCKED = 1 << 3; 3898 3899 /** 3900 * Return whether the given user is actively running. This means that 3901 * the user is in the "started" state, not "stopped" -- it is currently 3902 * allowed to run code through scheduled alarms, receiving broadcasts, 3903 * etc. A started user may be either the current foreground user or a 3904 * background user; the result here does not distinguish between the two. 3905 * @param userId the user's id. Zero indicates the default user. 3906 * @hide 3907 */ 3908 public boolean isUserRunning(int userId) { 3909 try { 3910 return getService().isUserRunning(userId, 0); 3911 } catch (RemoteException e) { 3912 throw e.rethrowFromSystemServer(); 3913 } 3914 } 3915 3916 /** {@hide} */ 3917 public boolean isVrModePackageEnabled(ComponentName component) { 3918 try { 3919 return getService().isVrModePackageEnabled(component); 3920 } catch (RemoteException e) { 3921 throw e.rethrowFromSystemServer(); 3922 } 3923 } 3924 3925 /** 3926 * Perform a system dump of various state associated with the given application 3927 * package name. This call blocks while the dump is being performed, so should 3928 * not be done on a UI thread. The data will be written to the given file 3929 * descriptor as text. 3930 * @param fd The file descriptor that the dump should be written to. The file 3931 * descriptor is <em>not</em> closed by this function; the caller continues to 3932 * own it. 3933 * @param packageName The name of the package that is to be dumped. 3934 */ 3935 @RequiresPermission(Manifest.permission.DUMP) 3936 public void dumpPackageState(FileDescriptor fd, String packageName) { 3937 dumpPackageStateStatic(fd, packageName); 3938 } 3939 3940 /** 3941 * @hide 3942 */ 3943 public static void dumpPackageStateStatic(FileDescriptor fd, String packageName) { 3944 FileOutputStream fout = new FileOutputStream(fd); 3945 PrintWriter pw = new FastPrintWriter(fout); 3946 dumpService(pw, fd, "package", new String[] { packageName }); 3947 pw.println(); 3948 dumpService(pw, fd, Context.ACTIVITY_SERVICE, new String[] { 3949 "-a", "package", packageName }); 3950 pw.println(); 3951 dumpService(pw, fd, "meminfo", new String[] { "--local", "--package", packageName }); 3952 pw.println(); 3953 dumpService(pw, fd, ProcessStats.SERVICE_NAME, new String[] { packageName }); 3954 pw.println(); 3955 dumpService(pw, fd, "usagestats", new String[] { "--packages", packageName }); 3956 pw.println(); 3957 dumpService(pw, fd, BatteryStats.SERVICE_NAME, new String[] { packageName }); 3958 pw.flush(); 3959 } 3960 3961 /** 3962 * @hide 3963 */ 3964 public static boolean isSystemReady() { 3965 if (!sSystemReady) { 3966 if (ActivityThread.isSystem()) { 3967 sSystemReady = 3968 LocalServices.getService(ActivityManagerInternal.class).isSystemReady(); 3969 } else { 3970 // Since this is being called from outside system server, system should be 3971 // ready by now. 3972 sSystemReady = true; 3973 } 3974 } 3975 return sSystemReady; 3976 } 3977 3978 /** 3979 * @hide 3980 */ 3981 public static void broadcastStickyIntent(Intent intent, int userId) { 3982 broadcastStickyIntent(intent, AppOpsManager.OP_NONE, userId); 3983 } 3984 3985 /** 3986 * Convenience for sending a sticky broadcast. For internal use only. 3987 * 3988 * @hide 3989 */ 3990 public static void broadcastStickyIntent(Intent intent, int appOp, int userId) { 3991 try { 3992 getService().broadcastIntent( 3993 null, intent, null, null, Activity.RESULT_OK, null, null, 3994 null /*permission*/, appOp, null, false, true, userId); 3995 } catch (RemoteException ex) { 3996 } 3997 } 3998 3999 /** 4000 * @hide 4001 */ 4002 public static void noteWakeupAlarm(PendingIntent ps, int sourceUid, String sourcePkg, 4003 String tag) { 4004 try { 4005 getService().noteWakeupAlarm((ps != null) ? ps.getTarget() : null, 4006 sourceUid, sourcePkg, tag); 4007 } catch (RemoteException ex) { 4008 } 4009 } 4010 4011 /** 4012 * @hide 4013 */ 4014 public static void noteAlarmStart(PendingIntent ps, int sourceUid, String tag) { 4015 try { 4016 getService().noteAlarmStart((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4017 } catch (RemoteException ex) { 4018 } 4019 } 4020 4021 /** 4022 * @hide 4023 */ 4024 public static void noteAlarmFinish(PendingIntent ps, int sourceUid, String tag) { 4025 try { 4026 getService().noteAlarmFinish((ps != null) ? ps.getTarget() : null, sourceUid, tag); 4027 } catch (RemoteException ex) { 4028 } 4029 } 4030 4031 /** 4032 * @hide 4033 */ 4034 public static IActivityManager getService() { 4035 return IActivityManagerSingleton.get(); 4036 } 4037 4038 private static final Singleton<IActivityManager> IActivityManagerSingleton = 4039 new Singleton<IActivityManager>() { 4040 @Override 4041 protected IActivityManager create() { 4042 final IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE); 4043 final IActivityManager am = IActivityManager.Stub.asInterface(b); 4044 return am; 4045 } 4046 }; 4047 4048 private static void dumpService(PrintWriter pw, FileDescriptor fd, String name, String[] args) { 4049 pw.print("DUMP OF SERVICE "); pw.print(name); pw.println(":"); 4050 IBinder service = ServiceManager.checkService(name); 4051 if (service == null) { 4052 pw.println(" (Service not found)"); 4053 return; 4054 } 4055 TransferPipe tp = null; 4056 try { 4057 pw.flush(); 4058 tp = new TransferPipe(); 4059 tp.setBufferPrefix(" "); 4060 service.dumpAsync(tp.getWriteFd().getFileDescriptor(), args); 4061 tp.go(fd, 10000); 4062 } catch (Throwable e) { 4063 if (tp != null) { 4064 tp.kill(); 4065 } 4066 pw.println("Failure dumping service:"); 4067 e.printStackTrace(pw); 4068 } 4069 } 4070 4071 /** 4072 * Request that the system start watching for the calling process to exceed a pss 4073 * size as given here. Once called, the system will look for any occasions where it 4074 * sees the associated process with a larger pss size and, when this happens, automatically 4075 * pull a heap dump from it and allow the user to share the data. Note that this request 4076 * continues running even if the process is killed and restarted. To remove the watch, 4077 * use {@link #clearWatchHeapLimit()}. 4078 * 4079 * <p>This API only work if the calling process has been marked as 4080 * {@link ApplicationInfo#FLAG_DEBUGGABLE} or this is running on a debuggable 4081 * (userdebug or eng) build.</p> 4082 * 4083 * <p>Callers can optionally implement {@link #ACTION_REPORT_HEAP_LIMIT} to directly 4084 * handle heap limit reports themselves.</p> 4085 * 4086 * @param pssSize The size in bytes to set the limit at. 4087 */ 4088 public void setWatchHeapLimit(long pssSize) { 4089 try { 4090 getService().setDumpHeapDebugLimit(null, 0, pssSize, 4091 mContext.getPackageName()); 4092 } catch (RemoteException e) { 4093 throw e.rethrowFromSystemServer(); 4094 } 4095 } 4096 4097 /** 4098 * Action an app can implement to handle reports from {@link #setWatchHeapLimit(long)}. 4099 * If your package has an activity handling this action, it will be launched with the 4100 * heap data provided to it the same way as {@link Intent#ACTION_SEND}. Note that to 4101 * match the activty must support this action and a MIME type of "*/*". 4102 */ 4103 public static final String ACTION_REPORT_HEAP_LIMIT = "android.app.action.REPORT_HEAP_LIMIT"; 4104 4105 /** 4106 * Clear a heap watch limit previously set by {@link #setWatchHeapLimit(long)}. 4107 */ 4108 public void clearWatchHeapLimit() { 4109 try { 4110 getService().setDumpHeapDebugLimit(null, 0, 0, null); 4111 } catch (RemoteException e) { 4112 throw e.rethrowFromSystemServer(); 4113 } 4114 } 4115 4116 /** 4117 * Return whether currently in lock task mode. When in this mode 4118 * no new tasks can be created or switched to. 4119 * 4120 * @see Activity#startLockTask() 4121 * 4122 * @deprecated Use {@link #getLockTaskModeState} instead. 4123 */ 4124 @Deprecated 4125 public boolean isInLockTaskMode() { 4126 return getLockTaskModeState() != LOCK_TASK_MODE_NONE; 4127 } 4128 4129 /** 4130 * Return the current state of task locking. The three possible outcomes 4131 * are {@link #LOCK_TASK_MODE_NONE}, {@link #LOCK_TASK_MODE_LOCKED} 4132 * and {@link #LOCK_TASK_MODE_PINNED}. 4133 * 4134 * @see Activity#startLockTask() 4135 */ 4136 public int getLockTaskModeState() { 4137 try { 4138 return getService().getLockTaskModeState(); 4139 } catch (RemoteException e) { 4140 throw e.rethrowFromSystemServer(); 4141 } 4142 } 4143 4144 /** 4145 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads. Only one 4146 * thread can be a VR thread in a process at a time, and that thread may be subject to 4147 * restrictions on the amount of time it can run. 4148 * 4149 * If persistent VR mode is set, whatever thread has been granted aggressive scheduling via this 4150 * method will return to normal operation, and calling this method will do nothing while 4151 * persistent VR mode is enabled. 4152 * 4153 * To reset the VR thread for an application, a tid of 0 can be passed. 4154 * 4155 * @see android.os.Process#myTid() 4156 * @param tid tid of the VR thread 4157 */ 4158 public static void setVrThread(int tid) { 4159 try { 4160 getService().setVrThread(tid); 4161 } catch (RemoteException e) { 4162 // pass 4163 } 4164 } 4165 4166 /** 4167 * Enable more aggressive scheduling for latency-sensitive low-runtime VR threads that persist 4168 * beyond a single process. Only one thread can be a 4169 * persistent VR thread at a time, and that thread may be subject to restrictions on the amount 4170 * of time it can run. Calling this method will disable aggressive scheduling for non-persistent 4171 * VR threads set via {@link #setVrThread}. If persistent VR mode is disabled then the 4172 * persistent VR thread loses its new scheduling priority; this method must be called again to 4173 * set the persistent thread. 4174 * 4175 * To reset the persistent VR thread, a tid of 0 can be passed. 4176 * 4177 * @see android.os.Process#myTid() 4178 * @param tid tid of the VR thread 4179 * @hide 4180 */ 4181 @RequiresPermission(Manifest.permission.RESTRICTED_VR_ACCESS) 4182 public static void setPersistentVrThread(int tid) { 4183 try { 4184 getService().setPersistentVrThread(tid); 4185 } catch (RemoteException e) { 4186 // pass 4187 } 4188 } 4189 4190 /** 4191 * The AppTask allows you to manage your own application's tasks. 4192 * See {@link android.app.ActivityManager#getAppTasks()} 4193 */ 4194 public static class AppTask { 4195 private IAppTask mAppTaskImpl; 4196 4197 /** @hide */ 4198 public AppTask(IAppTask task) { 4199 mAppTaskImpl = task; 4200 } 4201 4202 /** 4203 * Finishes all activities in this task and removes it from the recent tasks list. 4204 */ 4205 public void finishAndRemoveTask() { 4206 try { 4207 mAppTaskImpl.finishAndRemoveTask(); 4208 } catch (RemoteException e) { 4209 throw e.rethrowFromSystemServer(); 4210 } 4211 } 4212 4213 /** 4214 * Get the RecentTaskInfo associated with this task. 4215 * 4216 * @return The RecentTaskInfo for this task, or null if the task no longer exists. 4217 */ 4218 public RecentTaskInfo getTaskInfo() { 4219 try { 4220 return mAppTaskImpl.getTaskInfo(); 4221 } catch (RemoteException e) { 4222 throw e.rethrowFromSystemServer(); 4223 } 4224 } 4225 4226 /** 4227 * Bring this task to the foreground. If it contains activities, they will be 4228 * brought to the foreground with it and their instances re-created if needed. 4229 * If it doesn't contain activities, the root activity of the task will be 4230 * re-launched. 4231 */ 4232 public void moveToFront() { 4233 try { 4234 mAppTaskImpl.moveToFront(); 4235 } catch (RemoteException e) { 4236 throw e.rethrowFromSystemServer(); 4237 } 4238 } 4239 4240 /** 4241 * Start an activity in this task. Brings the task to the foreground. If this task 4242 * is not currently active (that is, its id < 0), then a new activity for the given 4243 * Intent will be launched as the root of the task and the task brought to the 4244 * foreground. Otherwise, if this task is currently active and the Intent does not specify 4245 * an activity to launch in a new task, then a new activity for the given Intent will 4246 * be launched on top of the task and the task brought to the foreground. If this 4247 * task is currently active and the Intent specifies {@link Intent#FLAG_ACTIVITY_NEW_TASK} 4248 * or would otherwise be launched in to a new task, then the activity not launched but 4249 * this task be brought to the foreground and a new intent delivered to the top 4250 * activity if appropriate. 4251 * 4252 * <p>In other words, you generally want to use an Intent here that does not specify 4253 * {@link Intent#FLAG_ACTIVITY_NEW_TASK} or {@link Intent#FLAG_ACTIVITY_NEW_DOCUMENT}, 4254 * and let the system do the right thing.</p> 4255 * 4256 * @param intent The Intent describing the new activity to be launched on the task. 4257 * @param options Optional launch options. 4258 * 4259 * @see Activity#startActivity(android.content.Intent, android.os.Bundle) 4260 */ 4261 public void startActivity(Context context, Intent intent, Bundle options) { 4262 ActivityThread thread = ActivityThread.currentActivityThread(); 4263 thread.getInstrumentation().execStartActivityFromAppTask(context, 4264 thread.getApplicationThread(), mAppTaskImpl, intent, options); 4265 } 4266 4267 /** 4268 * Modify the {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} flag in the root 4269 * Intent of this AppTask. 4270 * 4271 * @param exclude If true, {@link Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS} will 4272 * be set; otherwise, it will be cleared. 4273 */ 4274 public void setExcludeFromRecents(boolean exclude) { 4275 try { 4276 mAppTaskImpl.setExcludeFromRecents(exclude); 4277 } catch (RemoteException e) { 4278 throw e.rethrowFromSystemServer(); 4279 } 4280 } 4281 } 4282} 4283